src/drivers/driver_nl80211.c

   1 /*
   2  * Driver interaction with Linux nl80211/cfg80211
   3  * Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi>
   4  * Copyright (c) 2003-2004, Instant802 Networks, Inc.
   5  * Copyright (c) 2005-2006, Devicescape Software, Inc.
   6  * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
   7  * Copyright (c) 2009-2010, Atheros Communications
   8  *
   9  * This software may be distributed under the terms of the BSD license.
  10  * See README for more details.
  11  */
  12
  13 #include "includes.h"
  14 #include <sys/ioctl.h>
  15 #include <sys/types.h>
  16 #include <sys/stat.h>
  17 #include <fcntl.h>
  18 #include <net/if.h>
  19 #include <netlink/genl/genl.h>
  20 #include <netlink/genl/family.h>
  21 #include <netlink/genl/ctrl.h>
  22 #include <linux/rtnetlink.h>
  23 #include <netpacket/packet.h>
  24 #include <linux/filter.h>
  25 #include <linux/errqueue.h>
  26 #include "nl80211_copy.h"
  27
  28 #include "common.h"
  29 #include "eloop.h"
  30 #include "utils/list.h"
  31 #include "common/qca-vendor.h"
  32 #include "common/ieee802_11_defs.h"
  33 #include "common/ieee802_11_common.h"
  34 #include "l2_packet/l2_packet.h"
  35 #include "netlink.h"
  36 #include "linux_ioctl.h"
  37 #include "radiotap.h"
  38 #include "radiotap_iter.h"
  39 #include "rfkill.h"
  40 #include "driver.h"
  41
  42 #ifndef SO_WIFI_STATUS
  43 # if defined(__sparc__)
  44 #  define SO_WIFI_STATUS        0x0025
  45 # elif defined(__parisc__)
  46 #  define SO_WIFI_STATUS        0x4022
  47 # else
  48 #  define SO_WIFI_STATUS        41
  49 # endif
  50
  51 # define SCM_WIFI_STATUS        SO_WIFI_STATUS
  52 #endif
  53
  54 #ifndef SO_EE_ORIGIN_TXSTATUS
  55 #define SO_EE_ORIGIN_TXSTATUS   4
  56 #endif
  57
  58 #ifndef PACKET_TX_TIMESTAMP
  59 #define PACKET_TX_TIMESTAMP     16
  60 #endif
  61
  62 #ifdef ANDROID
  63 #include "android_drv.h"
  64 #endif /* ANDROID */
  65 #ifdef CONFIG_LIBNL20
  66 /* libnl 2.0 compatibility code */
  67 #define nl_handle nl_sock
  68 #define nl80211_handle_alloc nl_socket_alloc_cb
  69 #define nl80211_handle_destroy nl_socket_free
  70 #else
  71 /*
  72  * libnl 1.1 has a bug, it tries to allocate socket numbers densely
  73  * but when you free a socket again it will mess up its bitmap and
  74  * and use the wrong number the next time it needs a socket ID.
  75  * Therefore, we wrap the handle alloc/destroy and add our own pid
  76  * accounting.
  77  */
  78 static uint32_t port_bitmap[32] = { 0 };
  79
  80 static struct nl_handle *nl80211_handle_alloc(void *cb)
  81 {
  82         struct nl_handle *handle;
  83         uint32_t pid = getpid() & 0x3FFFFF;
  84         int i;
  85
  86         handle = nl_handle_alloc_cb(cb);
  87
  88         for (i = 0; i < 1024; i++) {
  89                 if (port_bitmap[i / 32] & (1 << (i % 32)))
  90                         continue;
  91                 port_bitmap[i / 32] |= 1 << (i % 32);
  92                 pid += i << 22;
  93                 break;
  94         }
  95
  96         nl_socket_set_local_port(handle, pid);
  97
  98         return handle;
  99 }
 100
 101 static void nl80211_handle_destroy(struct nl_handle *handle)
 102 {
 103         uint32_t port = nl_socket_get_local_port(handle);
 104
 105         port >>= 22;
 106         port_bitmap[port / 32] &= ~(1 << (port % 32));
 107
 108         nl_handle_destroy(handle);
 109 }
 110 #endif /* CONFIG_LIBNL20 */
 111
 112
 113 #ifdef ANDROID
 114 /* system/core/libnl_2 does not include nl_socket_set_nonblocking() */
 115 static int android_nl_socket_set_nonblocking(struct nl_handle *handle)
 116 {
 117         return fcntl(nl_socket_get_fd(handle), F_SETFL, O_NONBLOCK);
 118 }
 119 #undef nl_socket_set_nonblocking
 120 #define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h)
 121 #endif /* ANDROID */
 122
 123
 124 static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
 125 {
 126         struct nl_handle *handle;
 127
 128         handle = nl80211_handle_alloc(cb);
 129         if (handle == NULL) {
 130                 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
 131                            "callbacks (%s)", dbg);
 132                 return NULL;
 133         }
 134
 135         if (genl_connect(handle)) {
 136                 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
 137                            "netlink (%s)", dbg);
 138                 nl80211_handle_destroy(handle);
 139                 return NULL;
 140         }
 141
 142         return handle;
 143 }
 144
 145
 146 static void nl_destroy_handles(struct nl_handle **handle)
 147 {
 148         if (*handle == NULL)
 149                 return;
 150         nl80211_handle_destroy(*handle);
 151         *handle = NULL;
 152 }
 153
 154
 155 #if __WORDSIZE == 64
 156 #define ELOOP_SOCKET_INVALID    (intptr_t) 0x8888888888888889ULL
 157 #else
 158 #define ELOOP_SOCKET_INVALID    (intptr_t) 0x88888889ULL
 159 #endif
 160
 161 static void nl80211_register_eloop_read(struct nl_handle **handle,
 162                                         eloop_sock_handler handler,
 163                                         void *eloop_data)
 164 {
 165         nl_socket_set_nonblocking(*handle);
 166         eloop_register_read_sock(nl_socket_get_fd(*handle), handler,
 167                                  eloop_data, *handle);
 168         *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
 169 }
 170
 171
 172 static void nl80211_destroy_eloop_handle(struct nl_handle **handle)
 173 {
 174         *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
 175         eloop_unregister_read_sock(nl_socket_get_fd(*handle));
 176         nl_destroy_handles(handle);
 177 }
 178
 179
 180 #ifndef IFF_LOWER_UP
 181 #define IFF_LOWER_UP   0x10000         /* driver signals L1 up         */
 182 #endif
 183 #ifndef IFF_DORMANT
 184 #define IFF_DORMANT    0x20000         /* driver signals dormant       */
 185 #endif
 186
 187 #ifndef IF_OPER_DORMANT
 188 #define IF_OPER_DORMANT 5
 189 #endif
 190 #ifndef IF_OPER_UP
 191 #define IF_OPER_UP 6
 192 #endif
 193
 194 struct nl80211_global {
 195         struct dl_list interfaces;
 196         int if_add_ifindex;
 197         u64 if_add_wdevid;
 198         int if_add_wdevid_set;
 199         struct netlink_data *netlink;
 200         struct nl_cb *nl_cb;
 201         struct nl_handle *nl;
 202         int nl80211_id;
 203         int ioctl_sock; /* socket for ioctl() use */
 204
 205         struct nl_handle *nl_event;
 206 };
 207
 208 struct nl80211_wiphy_data {
 209         struct dl_list list;
 210         struct dl_list bsss;
 211         struct dl_list drvs;
 212
 213         struct nl_handle *nl_beacons;
 214         struct nl_cb *nl_cb;
 215
 216         int wiphy_idx;
 217 };
 218
 219 static void nl80211_global_deinit(void *priv);
 220
 221 struct i802_bss {
 222         struct wpa_driver_nl80211_data *drv;
 223         struct i802_bss *next;
 224         int ifindex;
 225         u64 wdev_id;
 226         char ifname[IFNAMSIZ + 1];
 227         char brname[IFNAMSIZ];
 228         unsigned int beacon_set:1;
 229         unsigned int added_if_into_bridge:1;
 230         unsigned int added_bridge:1;
 231         unsigned int in_deinit:1;
 232         unsigned int wdev_id_set:1;
 233         unsigned int added_if:1;
 234
 235         u8 addr[ETH_ALEN];
 236
 237         int freq;
 238         int if_dynamic;
 239
 240         void *ctx;
 241         struct nl_handle *nl_preq, *nl_mgmt;
 242         struct nl_cb *nl_cb;
 243
 244         struct nl80211_wiphy_data *wiphy_data;
 245         struct dl_list wiphy_list;
 246 };
 247
 248 struct wpa_driver_nl80211_data {
 249         struct nl80211_global *global;
 250         struct dl_list list;
 251         struct dl_list wiphy_list;
 252         char phyname[32];
 253         void *ctx;
 254         int ifindex;
 255         int if_removed;
 256         int if_disabled;
 257         int ignore_if_down_event;
 258         struct rfkill_data *rfkill;
 259         struct wpa_driver_capa capa;
 260         u8 *extended_capa, *extended_capa_mask;
 261         unsigned int extended_capa_len;
 262         int has_capability;
 263
 264         int operstate;
 265
 266         int scan_complete_events;
 267         enum scan_states {
 268                 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED,
 269                 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED,
 270                 SCHED_SCAN_RESULTS
 271         } scan_state;
 272
 273         struct nl_cb *nl_cb;
 274
 275         u8 auth_bssid[ETH_ALEN];
 276         u8 auth_attempt_bssid[ETH_ALEN];
 277         u8 bssid[ETH_ALEN];
 278         u8 prev_bssid[ETH_ALEN];
 279         int associated;
 280         u8 ssid[32];
 281         size_t ssid_len;
 282         enum nl80211_iftype nlmode;
 283         enum nl80211_iftype ap_scan_as_station;
 284         unsigned int assoc_freq;
 285
 286         int monitor_sock;
 287         int monitor_ifidx;
 288         int monitor_refcount;
 289
 290         unsigned int disabled_11b_rates:1;
 291         unsigned int pending_remain_on_chan:1;
 292         unsigned int in_interface_list:1;
 293         unsigned int device_ap_sme:1;
 294         unsigned int poll_command_supported:1;
 295         unsigned int data_tx_status:1;
 296         unsigned int scan_for_auth:1;
 297         unsigned int retry_auth:1;
 298         unsigned int use_monitor:1;
 299         unsigned int ignore_next_local_disconnect:1;
 300         unsigned int allow_p2p_device:1;
 301         unsigned int hostapd:1;
 302         unsigned int start_mode_ap:1;
 303         unsigned int start_iface_up:1;
 304
 305         u64 remain_on_chan_cookie;
 306         u64 send_action_cookie;
 307
 308         unsigned int last_mgmt_freq;
 309
 310         struct wpa_driver_scan_filter *filter_ssids;
 311         size_t num_filter_ssids;
 312
 313         struct i802_bss *first_bss;
 314
 315         int eapol_tx_sock;
 316
 317         int eapol_sock; /* socket for EAPOL frames */
 318
 319         int default_if_indices[16];
 320         int *if_indices;
 321         int num_if_indices;
 322
 323         /* From failed authentication command */
 324         int auth_freq;
 325         u8 auth_bssid_[ETH_ALEN];
 326         u8 auth_ssid[32];
 327         size_t auth_ssid_len;
 328         int auth_alg;
 329         u8 *auth_ie;
 330         size_t auth_ie_len;
 331         u8 auth_wep_key[4][16];
 332         size_t auth_wep_key_len[4];
 333         int auth_wep_tx_keyidx;
 334         int auth_local_state_change;
 335         int auth_p2p;
 336 };
 337
 338
 339 static void wpa_driver_nl80211_deinit(struct i802_bss *bss);
 340 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
 341                                             void *timeout_ctx);
 342 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
 343                                        enum nl80211_iftype nlmode);
 344 static int
 345 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
 346                                    const u8 *set_addr, int first);
 347 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
 348                                    const u8 *addr, int cmd, u16 reason_code,
 349                                    int local_state_change);
 350 static void nl80211_remove_monitor_interface(
 351         struct wpa_driver_nl80211_data *drv);
 352 static int nl80211_send_frame_cmd(struct i802_bss *bss,
 353                                   unsigned int freq, unsigned int wait,
 354                                   const u8 *buf, size_t buf_len, u64 *cookie,
 355                                   int no_cck, int no_ack, int offchanok);
 356 static int nl80211_register_frame(struct i802_bss *bss,
 357                                   struct nl_handle *hl_handle,
 358                                   u16 type, const u8 *match, size_t match_len);
 359 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
 360                                                int report);
 361 #ifdef ANDROID
 362 static int android_pno_start(struct i802_bss *bss,
 363                              struct wpa_driver_scan_params *params);
 364 static int android_pno_stop(struct i802_bss *bss);
 365 extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
 366                                          size_t buf_len);
 367 #endif /* ANDROID */
 368 #ifdef ANDROID_P2P
 369 int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration);
 370 int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len);
 371 int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow);
 372 int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
 373                                  const struct wpabuf *proberesp,
 374                                  const struct wpabuf *assocresp);
 375 #endif /* ANDROID_P2P */
 376
 377 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
 378 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
 379 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
 380 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
 381                                         enum wpa_driver_if_type type,
 382                                         const char *ifname);
 383
 384 static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
 385                                        struct hostapd_freq_params *freq);
 386 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
 387                                      int ifindex, int disabled);
 388
 389 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
 390 static int wpa_driver_nl80211_authenticate_retry(
 391         struct wpa_driver_nl80211_data *drv);
 392
 393 static int i802_set_iface_flags(struct i802_bss *bss, int up);
 394
 395
 396 static const char * nl80211_command_to_string(enum nl80211_commands cmd)
 397 {
 398 #define C2S(x) case x: return #x;
 399         switch (cmd) {
 400         C2S(NL80211_CMD_UNSPEC)
 401         C2S(NL80211_CMD_GET_WIPHY)
 402         C2S(NL80211_CMD_SET_WIPHY)
 403         C2S(NL80211_CMD_NEW_WIPHY)
 404         C2S(NL80211_CMD_DEL_WIPHY)
 405         C2S(NL80211_CMD_GET_INTERFACE)
 406         C2S(NL80211_CMD_SET_INTERFACE)
 407         C2S(NL80211_CMD_NEW_INTERFACE)
 408         C2S(NL80211_CMD_DEL_INTERFACE)
 409         C2S(NL80211_CMD_GET_KEY)
 410         C2S(NL80211_CMD_SET_KEY)
 411         C2S(NL80211_CMD_NEW_KEY)
 412         C2S(NL80211_CMD_DEL_KEY)
 413         C2S(NL80211_CMD_GET_BEACON)
 414         C2S(NL80211_CMD_SET_BEACON)
 415         C2S(NL80211_CMD_START_AP)
 416         C2S(NL80211_CMD_STOP_AP)
 417         C2S(NL80211_CMD_GET_STATION)
 418         C2S(NL80211_CMD_SET_STATION)
 419         C2S(NL80211_CMD_NEW_STATION)
 420         C2S(NL80211_CMD_DEL_STATION)
 421         C2S(NL80211_CMD_GET_MPATH)
 422         C2S(NL80211_CMD_SET_MPATH)
 423         C2S(NL80211_CMD_NEW_MPATH)
 424         C2S(NL80211_CMD_DEL_MPATH)
 425         C2S(NL80211_CMD_SET_BSS)
 426         C2S(NL80211_CMD_SET_REG)
 427         C2S(NL80211_CMD_REQ_SET_REG)
 428         C2S(NL80211_CMD_GET_MESH_CONFIG)
 429         C2S(NL80211_CMD_SET_MESH_CONFIG)
 430         C2S(NL80211_CMD_SET_MGMT_EXTRA_IE)
 431         C2S(NL80211_CMD_GET_REG)
 432         C2S(NL80211_CMD_GET_SCAN)
 433         C2S(NL80211_CMD_TRIGGER_SCAN)
 434         C2S(NL80211_CMD_NEW_SCAN_RESULTS)
 435         C2S(NL80211_CMD_SCAN_ABORTED)
 436         C2S(NL80211_CMD_REG_CHANGE)
 437         C2S(NL80211_CMD_AUTHENTICATE)
 438         C2S(NL80211_CMD_ASSOCIATE)
 439         C2S(NL80211_CMD_DEAUTHENTICATE)
 440         C2S(NL80211_CMD_DISASSOCIATE)
 441         C2S(NL80211_CMD_MICHAEL_MIC_FAILURE)
 442         C2S(NL80211_CMD_REG_BEACON_HINT)
 443         C2S(NL80211_CMD_JOIN_IBSS)
 444         C2S(NL80211_CMD_LEAVE_IBSS)
 445         C2S(NL80211_CMD_TESTMODE)
 446         C2S(NL80211_CMD_CONNECT)
 447         C2S(NL80211_CMD_ROAM)
 448         C2S(NL80211_CMD_DISCONNECT)
 449         C2S(NL80211_CMD_SET_WIPHY_NETNS)
 450         C2S(NL80211_CMD_GET_SURVEY)
 451         C2S(NL80211_CMD_NEW_SURVEY_RESULTS)
 452         C2S(NL80211_CMD_SET_PMKSA)
 453         C2S(NL80211_CMD_DEL_PMKSA)
 454         C2S(NL80211_CMD_FLUSH_PMKSA)
 455         C2S(NL80211_CMD_REMAIN_ON_CHANNEL)
 456         C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL)
 457         C2S(NL80211_CMD_SET_TX_BITRATE_MASK)
 458         C2S(NL80211_CMD_REGISTER_FRAME)
 459         C2S(NL80211_CMD_FRAME)
 460         C2S(NL80211_CMD_FRAME_TX_STATUS)
 461         C2S(NL80211_CMD_SET_POWER_SAVE)
 462         C2S(NL80211_CMD_GET_POWER_SAVE)
 463         C2S(NL80211_CMD_SET_CQM)
 464         C2S(NL80211_CMD_NOTIFY_CQM)
 465         C2S(NL80211_CMD_SET_CHANNEL)
 466         C2S(NL80211_CMD_SET_WDS_PEER)
 467         C2S(NL80211_CMD_FRAME_WAIT_CANCEL)
 468         C2S(NL80211_CMD_JOIN_MESH)
 469         C2S(NL80211_CMD_LEAVE_MESH)
 470         C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE)
 471         C2S(NL80211_CMD_UNPROT_DISASSOCIATE)
 472         C2S(NL80211_CMD_NEW_PEER_CANDIDATE)
 473         C2S(NL80211_CMD_GET_WOWLAN)
 474         C2S(NL80211_CMD_SET_WOWLAN)
 475         C2S(NL80211_CMD_START_SCHED_SCAN)
 476         C2S(NL80211_CMD_STOP_SCHED_SCAN)
 477         C2S(NL80211_CMD_SCHED_SCAN_RESULTS)
 478         C2S(NL80211_CMD_SCHED_SCAN_STOPPED)
 479         C2S(NL80211_CMD_SET_REKEY_OFFLOAD)
 480         C2S(NL80211_CMD_PMKSA_CANDIDATE)
 481         C2S(NL80211_CMD_TDLS_OPER)
 482         C2S(NL80211_CMD_TDLS_MGMT)
 483         C2S(NL80211_CMD_UNEXPECTED_FRAME)
 484         C2S(NL80211_CMD_PROBE_CLIENT)
 485         C2S(NL80211_CMD_REGISTER_BEACONS)
 486         C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME)
 487         C2S(NL80211_CMD_SET_NOACK_MAP)
 488         C2S(NL80211_CMD_CH_SWITCH_NOTIFY)
 489         C2S(NL80211_CMD_START_P2P_DEVICE)
 490         C2S(NL80211_CMD_STOP_P2P_DEVICE)
 491         C2S(NL80211_CMD_CONN_FAILED)
 492         C2S(NL80211_CMD_SET_MCAST_RATE)
 493         C2S(NL80211_CMD_SET_MAC_ACL)
 494         C2S(NL80211_CMD_RADAR_DETECT)
 495         C2S(NL80211_CMD_GET_PROTOCOL_FEATURES)
 496         C2S(NL80211_CMD_UPDATE_FT_IES)
 497         C2S(NL80211_CMD_FT_EVENT)
 498         C2S(NL80211_CMD_CRIT_PROTOCOL_START)
 499         C2S(NL80211_CMD_CRIT_PROTOCOL_STOP)
 500         C2S(NL80211_CMD_GET_COALESCE)
 501         C2S(NL80211_CMD_SET_COALESCE)
 502         C2S(NL80211_CMD_CHANNEL_SWITCH)
 503         C2S(NL80211_CMD_VENDOR)
 504         C2S(NL80211_CMD_SET_QOS_MAP)
 505         default:
 506                 return "NL80211_CMD_UNKNOWN";
 507         }
 508 #undef C2S
 509 }
 510
 511
 512 /* Converts nl80211_chan_width to a common format */
 513 static enum chan_width convert2width(int width)
 514 {
 515         switch (width) {
 516         case NL80211_CHAN_WIDTH_20_NOHT:
 517                 return CHAN_WIDTH_20_NOHT;
 518         case NL80211_CHAN_WIDTH_20:
 519                 return CHAN_WIDTH_20;
 520         case NL80211_CHAN_WIDTH_40:
 521                 return CHAN_WIDTH_40;
 522         case NL80211_CHAN_WIDTH_80:
 523                 return CHAN_WIDTH_80;
 524         case NL80211_CHAN_WIDTH_80P80:
 525                 return CHAN_WIDTH_80P80;
 526         case NL80211_CHAN_WIDTH_160:
 527                 return CHAN_WIDTH_160;
 528         }
 529         return CHAN_WIDTH_UNKNOWN;
 530 }
 531
 532
 533 static int is_ap_interface(enum nl80211_iftype nlmode)
 534 {
 535         return (nlmode == NL80211_IFTYPE_AP ||
 536                 nlmode == NL80211_IFTYPE_P2P_GO);
 537 }
 538
 539
 540 static int is_sta_interface(enum nl80211_iftype nlmode)
 541 {
 542         return (nlmode == NL80211_IFTYPE_STATION ||
 543                 nlmode == NL80211_IFTYPE_P2P_CLIENT);
 544 }
 545
 546
 547 static int is_p2p_net_interface(enum nl80211_iftype nlmode)
 548 {
 549         return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
 550                 nlmode == NL80211_IFTYPE_P2P_GO);
 551 }
 552
 553
 554 static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
 555 {
 556         if (drv->associated)
 557                 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
 558         drv->associated = 0;
 559         os_memset(drv->bssid, 0, ETH_ALEN);
 560 }
 561
 562
 563 struct nl80211_bss_info_arg {
 564         struct wpa_driver_nl80211_data *drv;
 565         struct wpa_scan_results *res;
 566         unsigned int assoc_freq;
 567         u8 assoc_bssid[ETH_ALEN];
 568 };
 569
 570 static int bss_info_handler(struct nl_msg *msg, void *arg);
 571
 572
 573 /* nl80211 code */
 574 static int ack_handler(struct nl_msg *msg, void *arg)
 575 {
 576         int *err = arg;
 577         *err = 0;
 578         return NL_STOP;
 579 }
 580
 581 static int finish_handler(struct nl_msg *msg, void *arg)
 582 {
 583         int *ret = arg;
 584         *ret = 0;
 585         return NL_SKIP;
 586 }
 587
 588 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
 589                          void *arg)
 590 {
 591         int *ret = arg;
 592         *ret = err->error;
 593         return NL_SKIP;
 594 }
 595
 596
 597 static int no_seq_check(struct nl_msg *msg, void *arg)
 598 {
 599         return NL_OK;
 600 }
 601
 602
 603 static int send_and_recv(struct nl80211_global *global,
 604                          struct nl_handle *nl_handle, struct nl_msg *msg,
 605                          int (*valid_handler)(struct nl_msg *, void *),
 606                          void *valid_data)
 607 {
 608         struct nl_cb *cb;
 609         int err = -ENOMEM;
 610
 611         cb = nl_cb_clone(global->nl_cb);
 612         if (!cb)
 613                 goto out;
 614
 615         err = nl_send_auto_complete(nl_handle, msg);
 616         if (err < 0)
 617                 goto out;
 618
 619         err = 1;
 620
 621         nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
 622         nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
 623         nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
 624
 625         if (valid_handler)
 626                 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
 627                           valid_handler, valid_data);
 628
 629         while (err > 0) {
 630                 int res = nl_recvmsgs(nl_handle, cb);
 631                 if (res) {
 632                         wpa_printf(MSG_INFO,
 633                                    "nl80211: %s->nl_recvmsgs failed: %d",
 634                                    __func__, res);
 635                 }
 636         }
 637  out:
 638         nl_cb_put(cb);
 639         nlmsg_free(msg);
 640         return err;
 641 }
 642
 643
 644 static int send_and_recv_msgs_global(struct nl80211_global *global,
 645                                      struct nl_msg *msg,
 646                                      int (*valid_handler)(struct nl_msg *, void *),
 647                                      void *valid_data)
 648 {
 649         return send_and_recv(global, global->nl, msg, valid_handler,
 650                              valid_data);
 651 }
 652
 653
 654 static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
 655                               struct nl_msg *msg,
 656                               int (*valid_handler)(struct nl_msg *, void *),
 657                               void *valid_data)
 658 {
 659         return send_and_recv(drv->global, drv->global->nl, msg,
 660                              valid_handler, valid_data);
 661 }
 662
 663
 664 struct family_data {
 665         const char *group;
 666         int id;
 667 };
 668
 669
 670 static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss)
 671 {
 672         if (bss->wdev_id_set)
 673                 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
 674         else
 675                 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
 676         return 0;
 677
 678 nla_put_failure:
 679         return -1;
 680 }
 681
 682
 683 static int family_handler(struct nl_msg *msg, void *arg)
 684 {
 685         struct family_data *res = arg;
 686         struct nlattr *tb[CTRL_ATTR_MAX + 1];
 687         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
 688         struct nlattr *mcgrp;
 689         int i;
 690
 691         nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
 692                   genlmsg_attrlen(gnlh, 0), NULL);
 693         if (!tb[CTRL_ATTR_MCAST_GROUPS])
 694                 return NL_SKIP;
 695
 696         nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
 697                 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
 698                 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
 699                           nla_len(mcgrp), NULL);
 700                 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
 701                     !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
 702                     os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
 703                                res->group,
 704                                nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
 705                         continue;
 706                 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
 707                 break;
 708         };
 709
 710         return NL_SKIP;
 711 }
 712
 713
 714 static int nl_get_multicast_id(struct nl80211_global *global,
 715                                const char *family, const char *group)
 716 {
 717         struct nl_msg *msg;
 718         int ret = -1;
 719         struct family_data res = { group, -ENOENT };
 720
 721         msg = nlmsg_alloc();
 722         if (!msg)
 723                 return -ENOMEM;
 724         genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
 725                     0, 0, CTRL_CMD_GETFAMILY, 0);
 726         NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
 727
 728         ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
 729         msg = NULL;
 730         if (ret == 0)
 731                 ret = res.id;
 732
 733 nla_put_failure:
 734         nlmsg_free(msg);
 735         return ret;
 736 }
 737
 738
 739 static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
 740                           struct nl_msg *msg, int flags, uint8_t cmd)
 741 {
 742         return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
 743                            0, flags, cmd, 0);
 744 }
 745
 746
 747 struct wiphy_idx_data {
 748         int wiphy_idx;
 749         enum nl80211_iftype nlmode;
 750         u8 *macaddr;
 751 };
 752
 753
 754 static int netdev_info_handler(struct nl_msg *msg, void *arg)
 755 {
 756         struct nlattr *tb[NL80211_ATTR_MAX + 1];
 757         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
 758         struct wiphy_idx_data *info = arg;
 759
 760         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
 761                   genlmsg_attrlen(gnlh, 0), NULL);
 762
 763         if (tb[NL80211_ATTR_WIPHY])
 764                 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
 765
 766         if (tb[NL80211_ATTR_IFTYPE])
 767                 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]);
 768
 769         if (tb[NL80211_ATTR_MAC] && info->macaddr)
 770                 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
 771                           ETH_ALEN);
 772
 773         return NL_SKIP;
 774 }
 775
 776
 777 static int nl80211_get_wiphy_index(struct i802_bss *bss)
 778 {
 779         struct nl_msg *msg;
 780         struct wiphy_idx_data data = {
 781                 .wiphy_idx = -1,
 782                 .macaddr = NULL,
 783         };
 784
 785         msg = nlmsg_alloc();
 786         if (!msg)
 787                 return NL80211_IFTYPE_UNSPECIFIED;
 788
 789         nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
 790
 791         if (nl80211_set_iface_id(msg, bss) < 0)
 792                 goto nla_put_failure;
 793
 794         if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
 795                 return data.wiphy_idx;
 796         msg = NULL;
 797 nla_put_failure:
 798         nlmsg_free(msg);
 799         return -1;
 800 }
 801
 802
 803 static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss)
 804 {
 805         struct nl_msg *msg;
 806         struct wiphy_idx_data data = {
 807                 .nlmode = NL80211_IFTYPE_UNSPECIFIED,
 808                 .macaddr = NULL,
 809         };
 810
 811         msg = nlmsg_alloc();
 812         if (!msg)
 813                 return -1;
 814
 815         nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
 816
 817         if (nl80211_set_iface_id(msg, bss) < 0)
 818                 goto nla_put_failure;
 819
 820         if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
 821                 return data.nlmode;
 822         msg = NULL;
 823 nla_put_failure:
 824         nlmsg_free(msg);
 825         return NL80211_IFTYPE_UNSPECIFIED;
 826 }
 827
 828
 829 static int nl80211_get_macaddr(struct i802_bss *bss)
 830 {
 831         struct nl_msg *msg;
 832         struct wiphy_idx_data data = {
 833                 .macaddr = bss->addr,
 834         };
 835
 836         msg = nlmsg_alloc();
 837         if (!msg)
 838                 return NL80211_IFTYPE_UNSPECIFIED;
 839
 840         nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
 841         if (nl80211_set_iface_id(msg, bss) < 0)
 842                 goto nla_put_failure;
 843
 844         return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data);
 845
 846 nla_put_failure:
 847         nlmsg_free(msg);
 848         return NL80211_IFTYPE_UNSPECIFIED;
 849 }
 850
 851
 852 static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
 853                                     struct nl80211_wiphy_data *w)
 854 {
 855         struct nl_msg *msg;
 856         int ret = -1;
 857
 858         msg = nlmsg_alloc();
 859         if (!msg)
 860                 return -1;
 861
 862         nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
 863
 864         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
 865
 866         ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
 867         msg = NULL;
 868         if (ret) {
 869                 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
 870                            "failed: ret=%d (%s)",
 871                            ret, strerror(-ret));
 872                 goto nla_put_failure;
 873         }
 874         ret = 0;
 875 nla_put_failure:
 876         nlmsg_free(msg);
 877         return ret;
 878 }
 879
 880
 881 static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
 882 {
 883         struct nl80211_wiphy_data *w = eloop_ctx;
 884         int res;
 885
 886         wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
 887
 888         res = nl_recvmsgs(handle, w->nl_cb);
 889         if (res) {
 890                 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
 891                            __func__, res);
 892         }
 893 }
 894
 895
 896 static int process_beacon_event(struct nl_msg *msg, void *arg)
 897 {
 898         struct nl80211_wiphy_data *w = arg;
 899         struct wpa_driver_nl80211_data *drv;
 900         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
 901         struct nlattr *tb[NL80211_ATTR_MAX + 1];
 902         union wpa_event_data event;
 903
 904         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
 905                   genlmsg_attrlen(gnlh, 0), NULL);
 906
 907         if (gnlh->cmd != NL80211_CMD_FRAME) {
 908                 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
 909                            gnlh->cmd);
 910                 return NL_SKIP;
 911         }
 912
 913         if (!tb[NL80211_ATTR_FRAME])
 914                 return NL_SKIP;
 915
 916         dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
 917                          wiphy_list) {
 918                 os_memset(&event, 0, sizeof(event));
 919                 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
 920                 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
 921                 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
 922         }
 923
 924         return NL_SKIP;
 925 }
 926
 927
 928 static struct nl80211_wiphy_data *
 929 nl80211_get_wiphy_data_ap(struct i802_bss *bss)
 930 {
 931         static DEFINE_DL_LIST(nl80211_wiphys);
 932         struct nl80211_wiphy_data *w;
 933         int wiphy_idx, found = 0;
 934         struct i802_bss *tmp_bss;
 935
 936         if (bss->wiphy_data != NULL)
 937                 return bss->wiphy_data;
 938
 939         wiphy_idx = nl80211_get_wiphy_index(bss);
 940
 941         dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
 942                 if (w->wiphy_idx == wiphy_idx)
 943                         goto add;
 944         }
 945
 946         /* alloc new one */
 947         w = os_zalloc(sizeof(*w));
 948         if (w == NULL)
 949                 return NULL;
 950         w->wiphy_idx = wiphy_idx;
 951         dl_list_init(&w->bsss);
 952         dl_list_init(&w->drvs);
 953
 954         w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
 955         if (!w->nl_cb) {
 956                 os_free(w);
 957                 return NULL;
 958         }
 959         nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
 960         nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
 961                   w);
 962
 963         w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
 964                                          "wiphy beacons");
 965         if (w->nl_beacons == NULL) {
 966                 os_free(w);
 967                 return NULL;
 968         }
 969
 970         if (nl80211_register_beacons(bss->drv, w)) {
 971                 nl_destroy_handles(&w->nl_beacons);
 972                 os_free(w);
 973                 return NULL;
 974         }
 975
 976         nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w);
 977
 978         dl_list_add(&nl80211_wiphys, &w->list);
 979
 980 add:
 981         /* drv entry for this bss already there? */
 982         dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
 983                 if (tmp_bss->drv == bss->drv) {
 984                         found = 1;
 985                         break;
 986                 }
 987         }
 988         /* if not add it */
 989         if (!found)
 990                 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
 991
 992         dl_list_add(&w->bsss, &bss->wiphy_list);
 993         bss->wiphy_data = w;
 994         return w;
 995 }
 996
 997
 998 static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
 999 {
1000         struct nl80211_wiphy_data *w = bss->wiphy_data;
1001         struct i802_bss *tmp_bss;
1002         int found = 0;
1003
1004         if (w == NULL)
1005                 return;
1006         bss->wiphy_data = NULL;
1007         dl_list_del(&bss->wiphy_list);
1008
1009         /* still any for this drv present? */
1010         dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
1011                 if (tmp_bss->drv == bss->drv) {
1012                         found = 1;
1013                         break;
1014                 }
1015         }
1016         /* if not remove it */
1017         if (!found)
1018                 dl_list_del(&bss->drv->wiphy_list);
1019
1020         if (!dl_list_empty(&w->bsss))
1021                 return;
1022
1023         nl80211_destroy_eloop_handle(&w->nl_beacons);
1024
1025         nl_cb_put(w->nl_cb);
1026         dl_list_del(&w->list);
1027         os_free(w);
1028 }
1029
1030
1031 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
1032 {
1033         struct i802_bss *bss = priv;
1034         struct wpa_driver_nl80211_data *drv = bss->drv;
1035         if (!drv->associated)
1036                 return -1;
1037         os_memcpy(bssid, drv->bssid, ETH_ALEN);
1038         return 0;
1039 }
1040
1041
1042 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
1043 {
1044         struct i802_bss *bss = priv;
1045         struct wpa_driver_nl80211_data *drv = bss->drv;
1046         if (!drv->associated)
1047                 return -1;
1048         os_memcpy(ssid, drv->ssid, drv->ssid_len);
1049         return drv->ssid_len;
1050 }
1051
1052
1053 static void wpa_driver_nl80211_event_newlink(
1054         struct wpa_driver_nl80211_data *drv, char *ifname)
1055 {
1056         union wpa_event_data event;
1057
1058         if (os_strcmp(drv->first_bss->ifname, ifname) == 0) {
1059                 if (if_nametoindex(drv->first_bss->ifname) == 0) {
1060                         wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK",
1061                                    drv->first_bss->ifname);
1062                         return;
1063                 }
1064                 if (!drv->if_removed)
1065                         return;
1066                 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event",
1067                            drv->first_bss->ifname);
1068                 drv->if_removed = 0;
1069         }
1070
1071         os_memset(&event, 0, sizeof(event));
1072         os_strlcpy(event.interface_status.ifname, ifname,
1073                    sizeof(event.interface_status.ifname));
1074         event.interface_status.ievent = EVENT_INTERFACE_ADDED;
1075         wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
1076 }
1077
1078
1079 static void wpa_driver_nl80211_event_dellink(
1080         struct wpa_driver_nl80211_data *drv, char *ifname)
1081 {
1082         union wpa_event_data event;
1083
1084         if (os_strcmp(drv->first_bss->ifname, ifname) == 0) {
1085                 if (drv->if_removed) {
1086                         wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s",
1087                                    ifname);
1088                         return;
1089                 }
1090                 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1",
1091                            ifname);
1092                 drv->if_removed = 1;
1093         } else {
1094                 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed",
1095                            ifname);
1096         }
1097
1098         os_memset(&event, 0, sizeof(event));
1099         os_strlcpy(event.interface_status.ifname, ifname,
1100                    sizeof(event.interface_status.ifname));
1101         event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1102         wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
1103 }
1104
1105
1106 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
1107                                          u8 *buf, size_t len)
1108 {
1109         int attrlen, rta_len;
1110         struct rtattr *attr;
1111
1112         attrlen = len;
1113         attr = (struct rtattr *) buf;
1114
1115         rta_len = RTA_ALIGN(sizeof(struct rtattr));
1116         while (RTA_OK(attr, attrlen)) {
1117                 if (attr->rta_type == IFLA_IFNAME) {
1118                         if (os_strcmp(((char *) attr) + rta_len,
1119                                       drv->first_bss->ifname) == 0)
1120                                 return 1;
1121                         else
1122                                 break;
1123                 }
1124                 attr = RTA_NEXT(attr, attrlen);
1125         }
1126
1127         return 0;
1128 }
1129
1130
1131 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
1132                                           int ifindex, u8 *buf, size_t len)
1133 {
1134         if (drv->ifindex == ifindex)
1135                 return 1;
1136
1137         if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
1138                 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
1139                            "interface");
1140                 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0);
1141                 return 1;
1142         }
1143
1144         return 0;
1145 }
1146
1147
1148 static struct wpa_driver_nl80211_data *
1149 nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
1150 {
1151         struct wpa_driver_nl80211_data *drv;
1152         dl_list_for_each(drv, &global->interfaces,
1153                          struct wpa_driver_nl80211_data, list) {
1154                 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
1155                     have_ifidx(drv, idx))
1156                         return drv;
1157         }
1158         return NULL;
1159 }
1160
1161
1162 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
1163                                                  struct ifinfomsg *ifi,
1164                                                  u8 *buf, size_t len)
1165 {
1166         struct nl80211_global *global = ctx;
1167         struct wpa_driver_nl80211_data *drv;
1168         int attrlen;
1169         struct rtattr *attr;
1170         u32 brid = 0;
1171         char namebuf[IFNAMSIZ];
1172         char ifname[IFNAMSIZ + 1];
1173         char extra[100], *pos, *end;
1174
1175         drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1176         if (!drv) {
1177                 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d",
1178                            ifi->ifi_index);
1179                 return;
1180         }
1181
1182         extra[0] = '\0';
1183         pos = extra;
1184         end = pos + sizeof(extra);
1185         ifname[0] = '\0';
1186
1187         attrlen = len;
1188         attr = (struct rtattr *) buf;
1189         while (RTA_OK(attr, attrlen)) {
1190                 switch (attr->rta_type) {
1191                 case IFLA_IFNAME:
1192                         if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
1193                                 break;
1194                         os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
1195                         ifname[RTA_PAYLOAD(attr)] = '\0';
1196                         break;
1197                 case IFLA_MASTER:
1198                         brid = nla_get_u32((struct nlattr *) attr);
1199                         pos += os_snprintf(pos, end - pos, " master=%u", brid);
1200                         break;
1201                 case IFLA_WIRELESS:
1202                         pos += os_snprintf(pos, end - pos, " wext");
1203                         break;
1204                 case IFLA_OPERSTATE:
1205                         pos += os_snprintf(pos, end - pos, " operstate=%u",
1206                                            nla_get_u32((struct nlattr *) attr));
1207                         break;
1208                 case IFLA_LINKMODE:
1209                         pos += os_snprintf(pos, end - pos, " linkmode=%u",
1210                                            nla_get_u32((struct nlattr *) attr));
1211                         break;
1212                 }
1213                 attr = RTA_NEXT(attr, attrlen);
1214         }
1215         extra[sizeof(extra) - 1] = '\0';
1216
1217         wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_flags=0x%x (%s%s%s%s)",
1218                    ifi->ifi_index, ifname, extra, ifi->ifi_flags,
1219                    (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
1220                    (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
1221                    (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
1222                    (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
1223
1224         if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
1225                 if (if_indextoname(ifi->ifi_index, namebuf) &&
1226                     linux_iface_up(drv->global->ioctl_sock,
1227                                    drv->first_bss->ifname) > 0) {
1228                         wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1229                                    "event since interface %s is up", namebuf);
1230                         return;
1231                 }
1232                 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
1233                 if (drv->ignore_if_down_event) {
1234                         wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1235                                    "event generated by mode change");
1236                         drv->ignore_if_down_event = 0;
1237                 } else {
1238                         drv->if_disabled = 1;
1239                         wpa_supplicant_event(drv->ctx,
1240                                              EVENT_INTERFACE_DISABLED, NULL);
1241                 }
1242         }
1243
1244         if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
1245                 if (if_indextoname(ifi->ifi_index, namebuf) &&
1246                     linux_iface_up(drv->global->ioctl_sock,
1247                                    drv->first_bss->ifname) == 0) {
1248                         wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1249                                    "event since interface %s is down",
1250                                    namebuf);
1251                 } else if (if_nametoindex(drv->first_bss->ifname) == 0) {
1252                         wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1253                                    "event since interface %s does not exist",
1254                                    drv->first_bss->ifname);
1255                 } else if (drv->if_removed) {
1256                         wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1257                                    "event since interface %s is marked "
1258                                    "removed", drv->first_bss->ifname);
1259                 } else {
1260                         wpa_printf(MSG_DEBUG, "nl80211: Interface up");
1261                         drv->if_disabled = 0;
1262                         wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
1263                                              NULL);
1264                 }
1265         }
1266
1267         /*
1268          * Some drivers send the association event before the operup event--in
1269          * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
1270          * fails. This will hit us when wpa_supplicant does not need to do
1271          * IEEE 802.1X authentication
1272          */
1273         if (drv->operstate == 1 &&
1274             (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
1275             !(ifi->ifi_flags & IFF_RUNNING)) {
1276                 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate");
1277                 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
1278                                        -1, IF_OPER_UP);
1279         }
1280
1281         if (ifname[0])
1282                 wpa_driver_nl80211_event_newlink(drv, ifname);
1283
1284         if (ifi->ifi_family == AF_BRIDGE && brid) {
1285                 /* device has been added to bridge */
1286                 if_indextoname(brid, namebuf);
1287                 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
1288                            brid, namebuf);
1289                 add_ifidx(drv, brid);
1290         }
1291 }
1292
1293
1294 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
1295                                                  struct ifinfomsg *ifi,
1296                                                  u8 *buf, size_t len)
1297 {
1298         struct nl80211_global *global = ctx;
1299         struct wpa_driver_nl80211_data *drv;
1300         int attrlen;
1301         struct rtattr *attr;
1302         u32 brid = 0;
1303         char ifname[IFNAMSIZ + 1];
1304
1305         drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1306         if (!drv) {
1307                 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d",
1308                            ifi->ifi_index);
1309                 return;
1310         }
1311
1312         ifname[0] = '\0';
1313
1314         attrlen = len;
1315         attr = (struct rtattr *) buf;
1316         while (RTA_OK(attr, attrlen)) {
1317                 switch (attr->rta_type) {
1318                 case IFLA_IFNAME:
1319                         if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
1320                                 break;
1321                         os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
1322                         ifname[RTA_PAYLOAD(attr)] = '\0';
1323                         break;
1324                 case IFLA_MASTER:
1325                         brid = nla_get_u32((struct nlattr *) attr);
1326                         break;
1327                 }
1328                 attr = RTA_NEXT(attr, attrlen);
1329         }
1330
1331         if (ifname[0])
1332                 wpa_driver_nl80211_event_dellink(drv, ifname);
1333
1334         if (ifi->ifi_family == AF_BRIDGE && brid) {
1335                 /* device has been removed from bridge */
1336                 char namebuf[IFNAMSIZ];
1337                 if_indextoname(brid, namebuf);
1338                 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
1339                            "%s", brid, namebuf);
1340                 del_ifidx(drv, brid);
1341         }
1342 }
1343
1344
1345 static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1346                             const u8 *frame, size_t len)
1347 {
1348         const struct ieee80211_mgmt *mgmt;
1349         union wpa_event_data event;
1350
1351         wpa_printf(MSG_DEBUG, "nl80211: Authenticate event");
1352         mgmt = (const struct ieee80211_mgmt *) frame;
1353         if (len < 24 + sizeof(mgmt->u.auth)) {
1354                 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1355                            "frame");
1356                 return;
1357         }
1358
1359         os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
1360         os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
1361         os_memset(&event, 0, sizeof(event));
1362         os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1363         event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
1364         event.auth.auth_transaction =
1365                 le_to_host16(mgmt->u.auth.auth_transaction);
1366         event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1367         if (len > 24 + sizeof(mgmt->u.auth)) {
1368                 event.auth.ies = mgmt->u.auth.variable;
1369                 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1370         }
1371
1372         wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1373 }
1374
1375
1376 static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1377 {
1378         struct nl_msg *msg;
1379         int ret;
1380         struct nl80211_bss_info_arg arg;
1381
1382         os_memset(&arg, 0, sizeof(arg));
1383         msg = nlmsg_alloc();
1384         if (!msg)
1385                 goto nla_put_failure;
1386
1387         nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
1388         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1389
1390         arg.drv = drv;
1391         ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1392         msg = NULL;
1393         if (ret == 0) {
1394                 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1395                            "associated BSS from scan results: %u MHz",
1396                            arg.assoc_freq);
1397                 if (arg.assoc_freq)
1398                         drv->assoc_freq = arg.assoc_freq;
1399                 return drv->assoc_freq;
1400         }
1401         wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1402                    "(%s)", ret, strerror(-ret));
1403 nla_put_failure:
1404         nlmsg_free(msg);
1405         return drv->assoc_freq;
1406 }
1407
1408
1409 static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1410                             const u8 *frame, size_t len)
1411 {
1412         const struct ieee80211_mgmt *mgmt;
1413         union wpa_event_data event;
1414         u16 status;
1415
1416         wpa_printf(MSG_DEBUG, "nl80211: Associate event");
1417         mgmt = (const struct ieee80211_mgmt *) frame;
1418         if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1419                 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1420                            "frame");
1421                 return;
1422         }
1423
1424         status = le_to_host16(mgmt->u.assoc_resp.status_code);
1425         if (status != WLAN_STATUS_SUCCESS) {
1426                 os_memset(&event, 0, sizeof(event));
1427                 event.assoc_reject.bssid = mgmt->bssid;
1428                 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1429                         event.assoc_reject.resp_ies =
1430                                 (u8 *) mgmt->u.assoc_resp.variable;
1431                         event.assoc_reject.resp_ies_len =
1432                                 len - 24 - sizeof(mgmt->u.assoc_resp);
1433                 }
1434                 event.assoc_reject.status_code = status;
1435
1436                 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1437                 return;
1438         }
1439
1440         drv->associated = 1;
1441         os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
1442         os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN);
1443
1444         os_memset(&event, 0, sizeof(event));
1445         if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1446                 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1447                 event.assoc_info.resp_ies_len =
1448                         len - 24 - sizeof(mgmt->u.assoc_resp);
1449         }
1450
1451         event.assoc_info.freq = drv->assoc_freq;
1452
1453         wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1454 }
1455
1456
1457 static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1458                                enum nl80211_commands cmd, struct nlattr *status,
1459                                struct nlattr *addr, struct nlattr *req_ie,
1460                                struct nlattr *resp_ie)
1461 {
1462         union wpa_event_data event;
1463
1464         if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1465                 /*
1466                  * Avoid reporting two association events that would confuse
1467                  * the core code.
1468                  */
1469                 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1470                            "when using userspace SME", cmd);
1471                 return;
1472         }
1473
1474         if (cmd == NL80211_CMD_CONNECT)
1475                 wpa_printf(MSG_DEBUG, "nl80211: Connect event");
1476         else if (cmd == NL80211_CMD_ROAM)
1477                 wpa_printf(MSG_DEBUG, "nl80211: Roam event");
1478
1479         os_memset(&event, 0, sizeof(event));
1480         if (cmd == NL80211_CMD_CONNECT &&
1481             nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
1482                 if (addr)
1483                         event.assoc_reject.bssid = nla_data(addr);
1484                 if (resp_ie) {
1485                         event.assoc_reject.resp_ies = nla_data(resp_ie);
1486                         event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1487                 }
1488                 event.assoc_reject.status_code = nla_get_u16(status);
1489                 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1490                 return;
1491         }
1492
1493         drv->associated = 1;
1494         if (addr) {
1495                 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
1496                 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
1497         }
1498
1499         if (req_ie) {
1500                 event.assoc_info.req_ies = nla_data(req_ie);
1501                 event.assoc_info.req_ies_len = nla_len(req_ie);
1502         }
1503         if (resp_ie) {
1504                 event.assoc_info.resp_ies = nla_data(resp_ie);
1505                 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1506         }
1507
1508         event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1509
1510         wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1511 }
1512
1513
1514 static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
1515                                   struct nlattr *reason, struct nlattr *addr,
1516                                   struct nlattr *by_ap)
1517 {
1518         union wpa_event_data data;
1519         unsigned int locally_generated = by_ap == NULL;
1520
1521         if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1522                 /*
1523                  * Avoid reporting two disassociation events that could
1524                  * confuse the core code.
1525                  */
1526                 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1527                            "event when using userspace SME");
1528                 return;
1529         }
1530
1531         if (drv->ignore_next_local_disconnect) {
1532                 drv->ignore_next_local_disconnect = 0;
1533                 if (locally_generated) {
1534                         wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1535                                    "event triggered during reassociation");
1536                         return;
1537                 }
1538                 wpa_printf(MSG_WARNING, "nl80211: Was expecting local "
1539                            "disconnect but got another disconnect "
1540                            "event first");
1541         }
1542
1543         wpa_printf(MSG_DEBUG, "nl80211: Disconnect event");
1544         nl80211_mark_disconnected(drv);
1545         os_memset(&data, 0, sizeof(data));
1546         if (reason)
1547                 data.deauth_info.reason_code = nla_get_u16(reason);
1548         data.deauth_info.locally_generated = by_ap == NULL;
1549         wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data);
1550 }
1551
1552
1553 static int calculate_chan_offset(int width, int freq, int cf1, int cf2)
1554 {
1555         int freq1 = 0;
1556
1557         switch (convert2width(width)) {
1558         case CHAN_WIDTH_20_NOHT:
1559         case CHAN_WIDTH_20:
1560                 return 0;
1561         case CHAN_WIDTH_40:
1562                 freq1 = cf1 - 10;
1563                 break;
1564         case CHAN_WIDTH_80:
1565                 freq1 = cf1 - 30;
1566                 break;
1567         case CHAN_WIDTH_160:
1568                 freq1 = cf1 - 70;
1569                 break;
1570         case CHAN_WIDTH_UNKNOWN:
1571         case CHAN_WIDTH_80P80:
1572                 /* FIXME: implement this */
1573                 return 0;
1574         }
1575
1576         return (abs(freq - freq1) / 20) % 2 == 0 ? 1 : -1;
1577 }
1578
1579
1580 static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
1581                                  struct nlattr *ifindex, struct nlattr *freq,
1582                                  struct nlattr *type, struct nlattr *bw,
1583                                  struct nlattr *cf1, struct nlattr *cf2)
1584 {
1585         struct i802_bss *bss;
1586         union wpa_event_data data;
1587         int ht_enabled = 1;
1588         int chan_offset = 0;
1589         int ifidx;
1590
1591         wpa_printf(MSG_DEBUG, "nl80211: Channel switch event");
1592
1593         if (!freq)
1594                 return;
1595
1596         ifidx = nla_get_u32(ifindex);
1597         for (bss = drv->first_bss; bss; bss = bss->next)
1598                 if (bss->ifindex == ifidx)
1599                         break;
1600
1601         if (bss == NULL) {
1602                 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring",
1603                            ifidx);
1604                 return;
1605         }
1606
1607         if (type) {
1608                 switch (nla_get_u32(type)) {
1609                 case NL80211_CHAN_NO_HT:
1610                         ht_enabled = 0;
1611                         break;
1612                 case NL80211_CHAN_HT20:
1613                         break;
1614                 case NL80211_CHAN_HT40PLUS:
1615                         chan_offset = 1;
1616                         break;
1617                 case NL80211_CHAN_HT40MINUS:
1618                         chan_offset = -1;
1619                         break;
1620                 }
1621         } else if (bw && cf1) {
1622                 /* This can happen for example with VHT80 ch switch */
1623                 chan_offset = calculate_chan_offset(nla_get_u32(bw),
1624                                                     nla_get_u32(freq),
1625                                                     nla_get_u32(cf1),
1626                                                     cf2 ? nla_get_u32(cf2) : 0);
1627         } else {
1628                 wpa_printf(MSG_WARNING, "nl80211: Unknown secondary channel information - following channel definition calculations may fail");
1629         }
1630
1631         os_memset(&data, 0, sizeof(data));
1632         data.ch_switch.freq = nla_get_u32(freq);
1633         data.ch_switch.ht_enabled = ht_enabled;
1634         data.ch_switch.ch_offset = chan_offset;
1635         if (bw)
1636                 data.ch_switch.ch_width = convert2width(nla_get_u32(bw));
1637         if (cf1)
1638                 data.ch_switch.cf1 = nla_get_u32(cf1);
1639         if (cf2)
1640                 data.ch_switch.cf2 = nla_get_u32(cf2);
1641
1642         bss->freq = data.ch_switch.freq;
1643
1644         wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
1645 }
1646
1647
1648 static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1649                                enum nl80211_commands cmd, struct nlattr *addr)
1650 {
1651         union wpa_event_data event;
1652         enum wpa_event_type ev;
1653
1654         if (nla_len(addr) != ETH_ALEN)
1655                 return;
1656
1657         wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1658                    cmd, MAC2STR((u8 *) nla_data(addr)));
1659
1660         if (cmd == NL80211_CMD_AUTHENTICATE)
1661                 ev = EVENT_AUTH_TIMED_OUT;
1662         else if (cmd == NL80211_CMD_ASSOCIATE)
1663                 ev = EVENT_ASSOC_TIMED_OUT;
1664         else
1665                 return;
1666
1667         os_memset(&event, 0, sizeof(event));
1668         os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1669         wpa_supplicant_event(drv->ctx, ev, &event);
1670 }
1671
1672
1673 static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
1674                             struct nlattr *freq, struct nlattr *sig,
1675                             const u8 *frame, size_t len)
1676 {
1677         const struct ieee80211_mgmt *mgmt;
1678         union wpa_event_data event;
1679         u16 fc, stype;
1680         int ssi_signal = 0;
1681         int rx_freq = 0;
1682
1683         wpa_printf(MSG_MSGDUMP, "nl80211: Frame event");
1684         mgmt = (const struct ieee80211_mgmt *) frame;
1685         if (len < 24) {
1686                 wpa_printf(MSG_DEBUG, "nl80211: Too short management frame");
1687                 return;
1688         }
1689
1690         fc = le_to_host16(mgmt->frame_control);
1691         stype = WLAN_FC_GET_STYPE(fc);
1692
1693         if (sig)
1694                 ssi_signal = (s32) nla_get_u32(sig);
1695
1696         os_memset(&event, 0, sizeof(event));
1697         if (freq) {
1698                 event.rx_mgmt.freq = nla_get_u32(freq);
1699                 rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq;
1700         }
1701         wpa_printf(MSG_DEBUG,
1702                    "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u",
1703                    rx_freq, ssi_signal, stype, (unsigned int) len);
1704         event.rx_mgmt.frame = frame;
1705         event.rx_mgmt.frame_len = len;
1706         event.rx_mgmt.ssi_signal = ssi_signal;
1707         wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1708 }
1709
1710
1711 static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1712                                       struct nlattr *cookie, const u8 *frame,
1713                                       size_t len, struct nlattr *ack)
1714 {
1715         union wpa_event_data event;
1716         const struct ieee80211_hdr *hdr;
1717         u16 fc;
1718
1719         wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event");
1720         if (!is_ap_interface(drv->nlmode)) {
1721                 u64 cookie_val;
1722
1723                 if (!cookie)
1724                         return;
1725
1726                 cookie_val = nla_get_u64(cookie);
1727                 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1728                            " cookie=0%llx%s (ack=%d)",
1729                            (long long unsigned int) cookie_val,
1730                            cookie_val == drv->send_action_cookie ?
1731                            " (match)" : " (unknown)", ack != NULL);
1732                 if (cookie_val != drv->send_action_cookie)
1733                         return;
1734         }
1735
1736         hdr = (const struct ieee80211_hdr *) frame;
1737         fc = le_to_host16(hdr->frame_control);
1738
1739         os_memset(&event, 0, sizeof(event));
1740         event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1741         event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1742         event.tx_status.dst = hdr->addr1;
1743         event.tx_status.data = frame;
1744         event.tx_status.data_len = len;
1745         event.tx_status.ack = ack != NULL;
1746         wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1747 }
1748
1749
1750 static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1751                                        enum wpa_event_type type,
1752                                        const u8 *frame, size_t len)
1753 {
1754         const struct ieee80211_mgmt *mgmt;
1755         union wpa_event_data event;
1756         const u8 *bssid = NULL;
1757         u16 reason_code = 0;
1758
1759         if (type == EVENT_DEAUTH)
1760                 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event");
1761         else
1762                 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event");
1763
1764         mgmt = (const struct ieee80211_mgmt *) frame;
1765         if (len >= 24) {
1766                 bssid = mgmt->bssid;
1767
1768                 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) &&
1769                     !drv->associated &&
1770                     os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 &&
1771                     os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 &&
1772                     os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) {
1773                         /*
1774                          * Avoid issues with some roaming cases where
1775                          * disconnection event for the old AP may show up after
1776                          * we have started connection with the new AP.
1777                          */
1778                         wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR,
1779                                    MAC2STR(bssid),
1780                                    MAC2STR(drv->auth_attempt_bssid));
1781                         return;
1782                 }
1783
1784                 if (drv->associated != 0 &&
1785                     os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1786                     os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1787                         /*
1788                          * We have presumably received this deauth as a
1789                          * response to a clear_state_mismatch() outgoing
1790                          * deauth.  Don't let it take us offline!
1791                          */
1792                         wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1793                                    "from Unknown BSSID " MACSTR " -- ignoring",
1794                                    MAC2STR(bssid));
1795                         return;
1796                 }
1797         }
1798
1799         nl80211_mark_disconnected(drv);
1800         os_memset(&event, 0, sizeof(event));
1801
1802         /* Note: Same offset for Reason Code in both frame subtypes */
1803         if (len >= 24 + sizeof(mgmt->u.deauth))
1804                 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1805
1806         if (type == EVENT_DISASSOC) {
1807                 event.disassoc_info.locally_generated =
1808                         !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN);
1809                 event.disassoc_info.addr = bssid;
1810                 event.disassoc_info.reason_code = reason_code;
1811                 if (frame + len > mgmt->u.disassoc.variable) {
1812                         event.disassoc_info.ie = mgmt->u.disassoc.variable;
1813                         event.disassoc_info.ie_len = frame + len -
1814                                 mgmt->u.disassoc.variable;
1815                 }
1816         } else {
1817                 event.deauth_info.locally_generated =
1818                         !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN);
1819                 event.deauth_info.addr = bssid;
1820                 event.deauth_info.reason_code = reason_code;
1821                 if (frame + len > mgmt->u.deauth.variable) {
1822                         event.deauth_info.ie = mgmt->u.deauth.variable;
1823                         event.deauth_info.ie_len = frame + len -
1824                                 mgmt->u.deauth.variable;
1825                 }
1826         }
1827
1828         wpa_supplicant_event(drv->ctx, type, &event);
1829 }
1830
1831
1832 static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1833                                          enum wpa_event_type type,
1834                                          const u8 *frame, size_t len)
1835 {
1836         const struct ieee80211_mgmt *mgmt;
1837         union wpa_event_data event;
1838         u16 reason_code = 0;
1839
1840         if (type == EVENT_UNPROT_DEAUTH)
1841                 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event");
1842         else
1843                 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event");
1844
1845         if (len < 24)
1846                 return;
1847
1848         mgmt = (const struct ieee80211_mgmt *) frame;
1849
1850         os_memset(&event, 0, sizeof(event));
1851         /* Note: Same offset for Reason Code in both frame subtypes */
1852         if (len >= 24 + sizeof(mgmt->u.deauth))
1853                 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1854
1855         if (type == EVENT_UNPROT_DISASSOC) {
1856                 event.unprot_disassoc.sa = mgmt->sa;
1857                 event.unprot_disassoc.da = mgmt->da;
1858                 event.unprot_disassoc.reason_code = reason_code;
1859         } else {
1860                 event.unprot_deauth.sa = mgmt->sa;
1861                 event.unprot_deauth.da = mgmt->da;
1862                 event.unprot_deauth.reason_code = reason_code;
1863         }
1864
1865         wpa_supplicant_event(drv->ctx, type, &event);
1866 }
1867
1868
1869 static void mlme_event(struct i802_bss *bss,
1870                        enum nl80211_commands cmd, struct nlattr *frame,
1871                        struct nlattr *addr, struct nlattr *timed_out,
1872                        struct nlattr *freq, struct nlattr *ack,
1873                        struct nlattr *cookie, struct nlattr *sig)
1874 {
1875         struct wpa_driver_nl80211_data *drv = bss->drv;
1876         const u8 *data;
1877         size_t len;
1878
1879         if (timed_out && addr) {
1880                 mlme_timeout_event(drv, cmd, addr);
1881                 return;
1882         }
1883
1884         if (frame == NULL) {
1885                 wpa_printf(MSG_DEBUG,
1886                            "nl80211: MLME event %d (%s) without frame data",
1887                            cmd, nl80211_command_to_string(cmd));
1888                 return;
1889         }
1890
1891         data = nla_data(frame);
1892         len = nla_len(frame);
1893         if (len < 4 + 2 * ETH_ALEN) {
1894                 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s("
1895                            MACSTR ") - too short",
1896                            cmd, nl80211_command_to_string(cmd), bss->ifname,
1897                            MAC2STR(bss->addr));
1898                 return;
1899         }
1900         wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR
1901                    ") A1=" MACSTR " A2=" MACSTR, cmd,
1902                    nl80211_command_to_string(cmd), bss->ifname,
1903                    MAC2STR(bss->addr), MAC2STR(data + 4),
1904                    MAC2STR(data + 4 + ETH_ALEN));
1905         if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) &&
1906             os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 &&
1907             os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) {
1908                 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event "
1909                            "for foreign address", bss->ifname);
1910                 return;
1911         }
1912         wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1913                     nla_data(frame), nla_len(frame));
1914
1915         switch (cmd) {
1916         case NL80211_CMD_AUTHENTICATE:
1917                 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1918                 break;
1919         case NL80211_CMD_ASSOCIATE:
1920                 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1921                 break;
1922         case NL80211_CMD_DEAUTHENTICATE:
1923                 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1924                                            nla_data(frame), nla_len(frame));
1925                 break;
1926         case NL80211_CMD_DISASSOCIATE:
1927                 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1928                                            nla_data(frame), nla_len(frame));
1929                 break;
1930         case NL80211_CMD_FRAME:
1931                 mlme_event_mgmt(drv, freq, sig, nla_data(frame),
1932                                 nla_len(frame));
1933                 break;
1934         case NL80211_CMD_FRAME_TX_STATUS:
1935                 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1936                                           nla_len(frame), ack);
1937                 break;
1938         case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1939                 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1940                                              nla_data(frame), nla_len(frame));
1941                 break;
1942         case NL80211_CMD_UNPROT_DISASSOCIATE:
1943                 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1944                                              nla_data(frame), nla_len(frame));
1945                 break;
1946         default:
1947                 break;
1948         }
1949 }
1950
1951
1952 static void mlme_event_michael_mic_failure(struct i802_bss *bss,
1953                                            struct nlattr *tb[])
1954 {
1955         union wpa_event_data data;
1956
1957         wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1958         os_memset(&data, 0, sizeof(data));
1959         if (tb[NL80211_ATTR_MAC]) {
1960                 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1961                             nla_data(tb[NL80211_ATTR_MAC]),
1962                             nla_len(tb[NL80211_ATTR_MAC]));
1963                 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
1964         }
1965         if (tb[NL80211_ATTR_KEY_SEQ]) {
1966                 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1967                             nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1968                             nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1969         }
1970         if (tb[NL80211_ATTR_KEY_TYPE]) {
1971                 enum nl80211_key_type key_type =
1972                         nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1973                 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1974                 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1975                         data.michael_mic_failure.unicast = 1;
1976         } else
1977                 data.michael_mic_failure.unicast = 1;
1978
1979         if (tb[NL80211_ATTR_KEY_IDX]) {
1980                 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1981                 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1982         }
1983
1984         wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1985 }
1986
1987
1988 static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1989                                  struct nlattr *tb[])
1990 {
1991         if (tb[NL80211_ATTR_MAC] == NULL) {
1992                 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1993                            "event");
1994                 return;
1995         }
1996         os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1997
1998         drv->associated = 1;
1999         wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
2000                    MAC2STR(drv->bssid));
2001
2002         wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
2003 }
2004
2005
2006 static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
2007                                          int cancel_event, struct nlattr *tb[])
2008 {
2009         unsigned int freq, chan_type, duration;
2010         union wpa_event_data data;
2011         u64 cookie;
2012
2013         if (tb[NL80211_ATTR_WIPHY_FREQ])
2014                 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
2015         else
2016                 freq = 0;
2017
2018         if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
2019                 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2020         else
2021                 chan_type = 0;
2022
2023         if (tb[NL80211_ATTR_DURATION])
2024                 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
2025         else
2026                 duration = 0;
2027
2028         if (tb[NL80211_ATTR_COOKIE])
2029                 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
2030         else
2031                 cookie = 0;
2032
2033         wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
2034                    "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
2035                    cancel_event, freq, chan_type, duration,
2036                    (long long unsigned int) cookie,
2037                    cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
2038
2039         if (cookie != drv->remain_on_chan_cookie)
2040                 return; /* not for us */
2041
2042         if (cancel_event)
2043                 drv->pending_remain_on_chan = 0;
2044
2045         os_memset(&data, 0, sizeof(data));
2046         data.remain_on_channel.freq = freq;
2047         data.remain_on_channel.duration = duration;
2048         wpa_supplicant_event(drv->ctx, cancel_event ?
2049                              EVENT_CANCEL_REMAIN_ON_CHANNEL :
2050                              EVENT_REMAIN_ON_CHANNEL, &data);
2051 }
2052
2053
2054 static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv,
2055                                 struct nlattr *tb[])
2056 {
2057         union wpa_event_data data;
2058
2059         os_memset(&data, 0, sizeof(data));
2060
2061         if (tb[NL80211_ATTR_IE]) {
2062                 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]);
2063                 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]);
2064         }
2065
2066         if (tb[NL80211_ATTR_IE_RIC]) {
2067                 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]);
2068                 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]);
2069         }
2070
2071         if (tb[NL80211_ATTR_MAC])
2072                 os_memcpy(data.ft_ies.target_ap,
2073                           nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2074
2075         wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR,
2076                    MAC2STR(data.ft_ies.target_ap));
2077
2078         wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data);
2079 }
2080
2081
2082 static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
2083                             struct nlattr *tb[])
2084 {
2085         union wpa_event_data event;
2086         struct nlattr *nl;
2087         int rem;
2088         struct scan_info *info;
2089 #define MAX_REPORT_FREQS 50
2090         int freqs[MAX_REPORT_FREQS];
2091         int num_freqs = 0;
2092
2093         if (drv->scan_for_auth) {
2094                 drv->scan_for_auth = 0;
2095                 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
2096                            "cfg80211 BSS entry");
2097                 wpa_driver_nl80211_authenticate_retry(drv);
2098                 return;
2099         }
2100
2101         os_memset(&event, 0, sizeof(event));
2102         info = &event.scan_info;
2103         info->aborted = aborted;
2104
2105         if (tb[NL80211_ATTR_SCAN_SSIDS]) {
2106                 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
2107                         struct wpa_driver_scan_ssid *s =
2108                                 &info->ssids[info->num_ssids];
2109                         s->ssid = nla_data(nl);
2110                         s->ssid_len = nla_len(nl);
2111                         wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'",
2112                                    wpa_ssid_txt(s->ssid, s->ssid_len));
2113                         info->num_ssids++;
2114                         if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
2115                                 break;
2116                 }
2117         }
2118         if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
2119                 char msg[200], *pos, *end;
2120                 int res;
2121
2122                 pos = msg;
2123                 end = pos + sizeof(msg);
2124                 *pos = '\0';
2125
2126                 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
2127                 {
2128                         freqs[num_freqs] = nla_get_u32(nl);
2129                         res = os_snprintf(pos, end - pos, " %d",
2130                                           freqs[num_freqs]);
2131                         if (res > 0 && end - pos > res)
2132                                 pos += res;
2133                         num_freqs++;
2134                         if (num_freqs == MAX_REPORT_FREQS - 1)
2135                                 break;
2136                 }
2137                 info->freqs = freqs;
2138                 info->num_freqs = num_freqs;
2139                 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s",
2140                            msg);
2141         }
2142         wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
2143 }
2144
2145
2146 static int get_link_signal(struct nl_msg *msg, void *arg)
2147 {
2148         struct nlattr *tb[NL80211_ATTR_MAX + 1];
2149         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2150         struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
2151         static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
2152                 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
2153                 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 },
2154         };
2155         struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
2156         static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
2157                 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
2158                 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
2159                 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
2160                 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
2161         };
2162         struct wpa_signal_info *sig_change = arg;
2163
2164         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2165                   genlmsg_attrlen(gnlh, 0), NULL);
2166         if (!tb[NL80211_ATTR_STA_INFO] ||
2167             nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
2168                              tb[NL80211_ATTR_STA_INFO], policy))
2169                 return NL_SKIP;
2170         if (!sinfo[NL80211_STA_INFO_SIGNAL])
2171                 return NL_SKIP;
2172
2173         sig_change->current_signal =
2174                 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
2175
2176         if (sinfo[NL80211_STA_INFO_SIGNAL_AVG])
2177                 sig_change->avg_signal =
2178                         (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]);
2179         else
2180                 sig_change->avg_signal = 0;
2181
2182         if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
2183                 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
2184                                      sinfo[NL80211_STA_INFO_TX_BITRATE],
2185                                      rate_policy)) {
2186                         sig_change->current_txrate = 0;
2187                 } else {
2188                         if (rinfo[NL80211_RATE_INFO_BITRATE]) {
2189                                 sig_change->current_txrate =
2190                                         nla_get_u16(rinfo[
2191                                              NL80211_RATE_INFO_BITRATE]) * 100;
2192                         }
2193                 }
2194         }
2195
2196         return NL_SKIP;
2197 }
2198
2199
2200 static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
2201                                    struct wpa_signal_info *sig)
2202 {
2203         struct nl_msg *msg;
2204
2205         sig->current_signal = -9999;
2206         sig->current_txrate = 0;
2207
2208         msg = nlmsg_alloc();
2209         if (!msg)
2210                 return -ENOMEM;
2211
2212         nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
2213
2214         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2215         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
2216
2217         return send_and_recv_msgs(drv, msg, get_link_signal, sig);
2218  nla_put_failure:
2219         nlmsg_free(msg);
2220         return -ENOBUFS;
2221 }
2222
2223
2224 static int get_link_noise(struct nl_msg *msg, void *arg)
2225 {
2226         struct nlattr *tb[NL80211_ATTR_MAX + 1];
2227         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2228         struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
2229         static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
2230                 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
2231                 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
2232         };
2233         struct wpa_signal_info *sig_change = arg;
2234
2235         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2236                   genlmsg_attrlen(gnlh, 0), NULL);
2237
2238         if (!tb[NL80211_ATTR_SURVEY_INFO]) {
2239                 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
2240                 return NL_SKIP;
2241         }
2242
2243         if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
2244                              tb[NL80211_ATTR_SURVEY_INFO],
2245                              survey_policy)) {
2246                 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
2247                            "attributes!");
2248                 return NL_SKIP;
2249         }
2250
2251         if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
2252                 return NL_SKIP;
2253
2254         if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
2255             sig_change->frequency)
2256                 return NL_SKIP;
2257
2258         if (!sinfo[NL80211_SURVEY_INFO_NOISE])
2259                 return NL_SKIP;
2260
2261         sig_change->current_noise =
2262                 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
2263
2264         return NL_SKIP;
2265 }
2266
2267
2268 static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
2269                                   struct wpa_signal_info *sig_change)
2270 {
2271         struct nl_msg *msg;
2272
2273         sig_change->current_noise = 9999;
2274         sig_change->frequency = drv->assoc_freq;
2275
2276         msg = nlmsg_alloc();
2277         if (!msg)
2278                 return -ENOMEM;
2279
2280         nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
2281
2282         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2283
2284         return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
2285  nla_put_failure:
2286         nlmsg_free(msg);
2287         return -ENOBUFS;
2288 }
2289
2290
2291 static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
2292 {
2293         struct nlattr *tb[NL80211_ATTR_MAX + 1];
2294         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2295         struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
2296         static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
2297                 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
2298                 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
2299         };
2300         struct wpa_scan_results *scan_results = arg;
2301         struct wpa_scan_res *scan_res;
2302         size_t i;
2303
2304         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2305                   genlmsg_attrlen(gnlh, 0), NULL);
2306
2307         if (!tb[NL80211_ATTR_SURVEY_INFO]) {
2308                 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
2309                 return NL_SKIP;
2310         }
2311
2312         if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
2313                              tb[NL80211_ATTR_SURVEY_INFO],
2314                              survey_policy)) {
2315                 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
2316                            "attributes");
2317                 return NL_SKIP;
2318         }
2319
2320         if (!sinfo[NL80211_SURVEY_INFO_NOISE])
2321                 return NL_SKIP;
2322
2323         if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
2324                 return NL_SKIP;
2325
2326         for (i = 0; i < scan_results->num; ++i) {
2327                 scan_res = scan_results->res[i];
2328                 if (!scan_res)
2329                         continue;
2330                 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
2331                     scan_res->freq)
2332                         continue;
2333                 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
2334                         continue;
2335                 scan_res->noise = (s8)
2336                         nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
2337                 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
2338         }
2339
2340         return NL_SKIP;
2341 }
2342
2343
2344 static int nl80211_get_noise_for_scan_results(
2345         struct wpa_driver_nl80211_data *drv,
2346         struct wpa_scan_results *scan_res)
2347 {
2348         struct nl_msg *msg;
2349
2350         msg = nlmsg_alloc();
2351         if (!msg)
2352                 return -ENOMEM;
2353
2354         nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
2355
2356         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2357
2358         return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
2359                                   scan_res);
2360  nla_put_failure:
2361         nlmsg_free(msg);
2362         return -ENOBUFS;
2363 }
2364
2365
2366 static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
2367                               struct nlattr *tb[])
2368 {
2369         static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
2370                 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
2371                 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
2372                 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
2373                 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
2374         };
2375         struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
2376         enum nl80211_cqm_rssi_threshold_event event;
2377         union wpa_event_data ed;
2378         struct wpa_signal_info sig;
2379         int res;
2380
2381         if (tb[NL80211_ATTR_CQM] == NULL ||
2382             nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
2383                              cqm_policy)) {
2384                 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
2385                 return;
2386         }
2387
2388         os_memset(&ed, 0, sizeof(ed));
2389
2390         if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
2391                 if (!tb[NL80211_ATTR_MAC])
2392                         return;
2393                 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
2394                           ETH_ALEN);
2395                 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
2396                 return;
2397         }
2398
2399         if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
2400                 return;
2401         event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
2402
2403         if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
2404                 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
2405                            "event: RSSI high");
2406                 ed.signal_change.above_threshold = 1;
2407         } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
2408                 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
2409                            "event: RSSI low");
2410                 ed.signal_change.above_threshold = 0;
2411         } else
2412                 return;
2413
2414         res = nl80211_get_link_signal(drv, &sig);
2415         if (res == 0) {
2416                 ed.signal_change.current_signal = sig.current_signal;
2417                 ed.signal_change.current_txrate = sig.current_txrate;
2418                 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm  txrate: %d",
2419                            sig.current_signal, sig.current_txrate);
2420         }
2421
2422         res = nl80211_get_link_noise(drv, &sig);
2423         if (res == 0) {
2424                 ed.signal_change.current_noise = sig.current_noise;
2425                 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
2426                            sig.current_noise);
2427         }
2428
2429         wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
2430 }
2431
2432
2433 static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
2434                                       struct nlattr **tb)
2435 {
2436         u8 *addr;
2437         union wpa_event_data data;
2438
2439         if (tb[NL80211_ATTR_MAC] == NULL)
2440                 return;
2441         addr = nla_data(tb[NL80211_ATTR_MAC]);
2442         wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
2443
2444         if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
2445                 u8 *ies = NULL;
2446                 size_t ies_len = 0;
2447                 if (tb[NL80211_ATTR_IE]) {
2448                         ies = nla_data(tb[NL80211_ATTR_IE]);
2449                         ies_len = nla_len(tb[NL80211_ATTR_IE]);
2450                 }
2451                 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
2452                 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
2453                 return;
2454         }
2455
2456         if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2457                 return;
2458
2459         os_memset(&data, 0, sizeof(data));
2460         os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
2461         wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
2462 }
2463
2464
2465 static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
2466                                       struct nlattr **tb)
2467 {
2468         u8 *addr;
2469         union wpa_event_data data;
2470
2471         if (tb[NL80211_ATTR_MAC] == NULL)
2472                 return;
2473         addr = nla_data(tb[NL80211_ATTR_MAC]);
2474         wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
2475                    MAC2STR(addr));
2476
2477         if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
2478                 drv_event_disassoc(drv->ctx, addr);
2479                 return;
2480         }
2481
2482         if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2483                 return;
2484
2485         os_memset(&data, 0, sizeof(data));
2486         os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
2487         wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
2488 }
2489
2490
2491 static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
2492                                         struct nlattr **tb)
2493 {
2494         struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
2495         static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
2496                 [NL80211_REKEY_DATA_KEK] = {
2497                         .minlen = NL80211_KEK_LEN,
2498                         .maxlen = NL80211_KEK_LEN,
2499                 },
2500                 [NL80211_REKEY_DATA_KCK] = {
2501                         .minlen = NL80211_KCK_LEN,
2502                         .maxlen = NL80211_KCK_LEN,
2503                 },
2504                 [NL80211_REKEY_DATA_REPLAY_CTR] = {
2505                         .minlen = NL80211_REPLAY_CTR_LEN,
2506                         .maxlen = NL80211_REPLAY_CTR_LEN,
2507                 },
2508         };
2509         union wpa_event_data data;
2510
2511         if (!tb[NL80211_ATTR_MAC])
2512                 return;
2513         if (!tb[NL80211_ATTR_REKEY_DATA])
2514                 return;
2515         if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
2516                              tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
2517                 return;
2518         if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
2519                 return;
2520
2521         os_memset(&data, 0, sizeof(data));
2522         data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
2523         wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
2524                    MAC2STR(data.driver_gtk_rekey.bssid));
2525         data.driver_gtk_rekey.replay_ctr =
2526                 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
2527         wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
2528                     data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
2529         wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
2530 }
2531
2532
2533 static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
2534                                           struct nlattr **tb)
2535 {
2536         struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
2537         static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
2538                 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
2539                 [NL80211_PMKSA_CANDIDATE_BSSID] = {
2540                         .minlen = ETH_ALEN,
2541                         .maxlen = ETH_ALEN,
2542                 },
2543                 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
2544         };
2545         union wpa_event_data data;
2546
2547         wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event");
2548
2549         if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
2550                 return;
2551         if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
2552                              tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
2553                 return;
2554         if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
2555             !cand[NL80211_PMKSA_CANDIDATE_BSSID])
2556                 return;
2557
2558         os_memset(&data, 0, sizeof(data));
2559         os_memcpy(data.pmkid_candidate.bssid,
2560                   nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
2561         data.pmkid_candidate.index =
2562                 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
2563         data.pmkid_candidate.preauth =
2564                 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
2565         wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
2566 }
2567
2568
2569 static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
2570                                        struct nlattr **tb)
2571 {
2572         union wpa_event_data data;
2573
2574         wpa_printf(MSG_DEBUG, "nl80211: Probe client event");
2575
2576         if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
2577                 return;
2578
2579         os_memset(&data, 0, sizeof(data));
2580         os_memcpy(data.client_poll.addr,
2581                   nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2582
2583         wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
2584 }
2585
2586
2587 static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv,
2588                                     struct nlattr **tb)
2589 {
2590         union wpa_event_data data;
2591
2592         wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event");
2593
2594         if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION])
2595                 return;
2596
2597         os_memset(&data, 0, sizeof(data));
2598         os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2599         switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) {
2600         case NL80211_TDLS_SETUP:
2601                 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer "
2602                            MACSTR, MAC2STR(data.tdls.peer));
2603                 data.tdls.oper = TDLS_REQUEST_SETUP;
2604                 break;
2605         case NL80211_TDLS_TEARDOWN:
2606                 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer "
2607                            MACSTR, MAC2STR(data.tdls.peer));
2608                 data.tdls.oper = TDLS_REQUEST_TEARDOWN;
2609                 break;
2610         default:
2611                 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione "
2612                            "event");
2613                 return;
2614         }
2615         if (tb[NL80211_ATTR_REASON_CODE]) {
2616                 data.tdls.reason_code =
2617                         nla_get_u16(tb[NL80211_ATTR_REASON_CODE]);
2618         }
2619
2620         wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data);
2621 }
2622
2623
2624 static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv,
2625                             struct nlattr **tb)
2626 {
2627         wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL);
2628 }
2629
2630
2631 static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv,
2632                                          struct nlattr **tb)
2633 {
2634         union wpa_event_data data;
2635         u32 reason;
2636
2637         wpa_printf(MSG_DEBUG, "nl80211: Connect failed event");
2638
2639         if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON])
2640                 return;
2641
2642         os_memset(&data, 0, sizeof(data));
2643         os_memcpy(data.connect_failed_reason.addr,
2644                   nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2645
2646         reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]);
2647         switch (reason) {
2648         case NL80211_CONN_FAIL_MAX_CLIENTS:
2649                 wpa_printf(MSG_DEBUG, "nl80211: Max client reached");
2650                 data.connect_failed_reason.code = MAX_CLIENT_REACHED;
2651                 break;
2652         case NL80211_CONN_FAIL_BLOCKED_CLIENT:
2653                 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR
2654                            " tried to connect",
2655                            MAC2STR(data.connect_failed_reason.addr));
2656                 data.connect_failed_reason.code = BLOCKED_CLIENT;
2657                 break;
2658         default:
2659                 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason "
2660                            "%u", reason);
2661                 return;
2662         }
2663
2664         wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data);
2665 }
2666
2667
2668 static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv,
2669                                 struct nlattr **tb)
2670 {
2671         union wpa_event_data data;
2672         enum nl80211_radar_event event_type;
2673
2674         if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT])
2675                 return;
2676
2677         os_memset(&data, 0, sizeof(data));
2678         data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
2679         event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]);
2680
2681         /* Check HT params */
2682         if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2683                 data.dfs_event.ht_enabled = 1;
2684                 data.dfs_event.chan_offset = 0;
2685
2686                 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) {
2687                 case NL80211_CHAN_NO_HT:
2688                         data.dfs_event.ht_enabled = 0;
2689                         break;
2690                 case NL80211_CHAN_HT20:
2691                         break;
2692                 case NL80211_CHAN_HT40PLUS:
2693                         data.dfs_event.chan_offset = 1;
2694                         break;
2695                 case NL80211_CHAN_HT40MINUS:
2696                         data.dfs_event.chan_offset = -1;
2697                         break;
2698                 }
2699         }
2700
2701         /* Get VHT params */
2702         if (tb[NL80211_ATTR_CHANNEL_WIDTH])
2703                 data.dfs_event.chan_width =
2704                         convert2width(nla_get_u32(
2705                                               tb[NL80211_ATTR_CHANNEL_WIDTH]));
2706         if (tb[NL80211_ATTR_CENTER_FREQ1])
2707                 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
2708         if (tb[NL80211_ATTR_CENTER_FREQ2])
2709                 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
2710
2711         wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz",
2712                    data.dfs_event.freq, data.dfs_event.ht_enabled,
2713                    data.dfs_event.chan_offset, data.dfs_event.chan_width,
2714                    data.dfs_event.cf1, data.dfs_event.cf2);
2715
2716         switch (event_type) {
2717         case NL80211_RADAR_DETECTED:
2718                 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data);
2719                 break;
2720         case NL80211_RADAR_CAC_FINISHED:
2721                 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data);
2722                 break;
2723         case NL80211_RADAR_CAC_ABORTED:
2724                 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data);
2725                 break;
2726         case NL80211_RADAR_NOP_FINISHED:
2727                 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data);
2728                 break;
2729         default:
2730                 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d "
2731                            "received", event_type);
2732                 break;
2733         }
2734 }
2735
2736
2737 static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2738                                    int wds)
2739 {
2740         struct wpa_driver_nl80211_data *drv = bss->drv;
2741         union wpa_event_data event;
2742
2743         if (!tb[NL80211_ATTR_MAC])
2744                 return;
2745
2746         os_memset(&event, 0, sizeof(event));
2747         event.rx_from_unknown.bssid = bss->addr;
2748         event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
2749         event.rx_from_unknown.wds = wds;
2750
2751         wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2752 }
2753
2754
2755 static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv,
2756                                    const u8 *data, size_t len)
2757 {
2758         u32 i, count;
2759         union wpa_event_data event;
2760         struct wpa_freq_range *range = NULL;
2761         const struct qca_avoid_freq_list *freq_range;
2762
2763         freq_range = (const struct qca_avoid_freq_list *) data;
2764         if (len < sizeof(freq_range->count))
2765                 return;
2766
2767         count = freq_range->count;
2768         if (len < sizeof(freq_range->count) +
2769             count * sizeof(struct qca_avoid_freq_range)) {
2770                 wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)",
2771                            (unsigned int) len);
2772                 return;
2773         }
2774
2775         if (count > 0) {
2776                 range = os_calloc(count, sizeof(struct wpa_freq_range));
2777                 if (range == NULL)
2778                         return;
2779         }
2780
2781         os_memset(&event, 0, sizeof(event));
2782         for (i = 0; i < count; i++) {
2783                 unsigned int idx = event.freq_range.num;
2784                 range[idx].min = freq_range->range[i].start_freq;
2785                 range[idx].max = freq_range->range[i].end_freq;
2786                 wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u",
2787                            range[idx].min, range[idx].max);
2788                 if (range[idx].min > range[idx].max) {
2789                         wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range");
2790                         continue;
2791                 }
2792                 event.freq_range.num++;
2793         }
2794         event.freq_range.range = range;
2795
2796         wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event);
2797
2798         os_free(range);
2799 }
2800
2801
2802 static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv,
2803                                      u32 subcmd, u8 *data, size_t len)
2804 {
2805         switch (subcmd) {
2806         case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY:
2807                 qca_nl80211_avoid_freq(drv, data, len);
2808                 break;
2809         default:
2810                 wpa_printf(MSG_DEBUG,
2811                            "nl80211: Ignore unsupported QCA vendor event %u",
2812                            subcmd);
2813                 break;
2814         }
2815 }
2816
2817
2818 static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv,
2819                                  struct nlattr **tb)
2820 {
2821         u32 vendor_id, subcmd, wiphy = 0;
2822         int wiphy_idx;
2823         u8 *data = NULL;
2824         size_t len = 0;
2825
2826         if (!tb[NL80211_ATTR_VENDOR_ID] ||
2827             !tb[NL80211_ATTR_VENDOR_SUBCMD])
2828                 return;
2829
2830         vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]);
2831         subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]);
2832
2833         if (tb[NL80211_ATTR_WIPHY])
2834                 wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
2835
2836         wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u",
2837                    wiphy, vendor_id, subcmd);
2838
2839         if (tb[NL80211_ATTR_VENDOR_DATA]) {
2840                 data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]);
2841                 len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]);
2842                 wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len);
2843         }
2844
2845         wiphy_idx = nl80211_get_wiphy_index(drv->first_bss);
2846         if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) {
2847                 wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)",
2848                            wiphy, wiphy_idx);
2849                 return;
2850         }
2851
2852         switch (vendor_id) {
2853         case OUI_QCA:
2854                 nl80211_vendor_event_qca(drv, subcmd, data, len);
2855                 break;
2856         default:
2857                 wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event");
2858                 break;
2859         }
2860 }
2861
2862
2863 static void do_process_drv_event(struct i802_bss *bss, int cmd,
2864                                  struct nlattr **tb)
2865 {
2866         struct wpa_driver_nl80211_data *drv = bss->drv;
2867         union wpa_event_data data;
2868
2869         wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s",
2870                    cmd, nl80211_command_to_string(cmd), bss->ifname);
2871
2872         if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
2873             (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2874              cmd == NL80211_CMD_SCAN_ABORTED)) {
2875                 wpa_driver_nl80211_set_mode(drv->first_bss,
2876                                             drv->ap_scan_as_station);
2877                 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
2878         }
2879
2880         switch (cmd) {
2881         case NL80211_CMD_TRIGGER_SCAN:
2882                 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger");
2883                 drv->scan_state = SCAN_STARTED;
2884                 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL);
2885                 break;
2886         case NL80211_CMD_START_SCHED_SCAN:
2887                 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started");
2888                 drv->scan_state = SCHED_SCAN_STARTED;
2889                 break;
2890         case NL80211_CMD_SCHED_SCAN_STOPPED:
2891                 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped");
2892                 drv->scan_state = SCHED_SCAN_STOPPED;
2893                 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2894                 break;
2895         case NL80211_CMD_NEW_SCAN_RESULTS:
2896                 wpa_dbg(drv->ctx, MSG_DEBUG,
2897                         "nl80211: New scan results available");
2898                 drv->scan_state = SCAN_COMPLETED;
2899                 drv->scan_complete_events = 1;
2900                 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2901                                      drv->ctx);
2902                 send_scan_event(drv, 0, tb);
2903                 break;
2904         case NL80211_CMD_SCHED_SCAN_RESULTS:
2905                 wpa_dbg(drv->ctx, MSG_DEBUG,
2906                         "nl80211: New sched scan results available");
2907                 drv->scan_state = SCHED_SCAN_RESULTS;
2908                 send_scan_event(drv, 0, tb);
2909                 break;
2910         case NL80211_CMD_SCAN_ABORTED:
2911                 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted");
2912                 drv->scan_state = SCAN_ABORTED;
2913                 /*
2914                  * Need to indicate that scan results are available in order
2915                  * not to make wpa_supplicant stop its scanning.
2916                  */
2917                 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2918                                      drv->ctx);
2919                 send_scan_event(drv, 1, tb);
2920                 break;
2921         case NL80211_CMD_AUTHENTICATE:
2922         case NL80211_CMD_ASSOCIATE:
2923         case NL80211_CMD_DEAUTHENTICATE:
2924         case NL80211_CMD_DISASSOCIATE:
2925         case NL80211_CMD_FRAME_TX_STATUS:
2926         case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2927         case NL80211_CMD_UNPROT_DISASSOCIATE:
2928                 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME],
2929                            tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2930                            tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
2931                            tb[NL80211_ATTR_COOKIE],
2932                            tb[NL80211_ATTR_RX_SIGNAL_DBM]);
2933                 break;
2934         case NL80211_CMD_CONNECT:
2935         case NL80211_CMD_ROAM:
2936                 mlme_event_connect(drv, cmd,
2937                                    tb[NL80211_ATTR_STATUS_CODE],
2938                                    tb[NL80211_ATTR_MAC],
2939                                    tb[NL80211_ATTR_REQ_IE],
2940                                    tb[NL80211_ATTR_RESP_IE]);
2941                 break;
2942         case NL80211_CMD_CH_SWITCH_NOTIFY:
2943                 mlme_event_ch_switch(drv,
2944                                      tb[NL80211_ATTR_IFINDEX],
2945                                      tb[NL80211_ATTR_WIPHY_FREQ],
2946                                      tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE],
2947                                      tb[NL80211_ATTR_CHANNEL_WIDTH],
2948                                      tb[NL80211_ATTR_CENTER_FREQ1],
2949                                      tb[NL80211_ATTR_CENTER_FREQ2]);
2950                 break;
2951         case NL80211_CMD_DISCONNECT:
2952                 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
2953                                       tb[NL80211_ATTR_MAC],
2954                                       tb[NL80211_ATTR_DISCONNECTED_BY_AP]);
2955                 break;
2956         case NL80211_CMD_MICHAEL_MIC_FAILURE:
2957                 mlme_event_michael_mic_failure(bss, tb);
2958                 break;
2959         case NL80211_CMD_JOIN_IBSS:
2960                 mlme_event_join_ibss(drv, tb);
2961                 break;
2962         case NL80211_CMD_REMAIN_ON_CHANNEL:
2963                 mlme_event_remain_on_channel(drv, 0, tb);
2964                 break;
2965         case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2966                 mlme_event_remain_on_channel(drv, 1, tb);
2967                 break;
2968         case NL80211_CMD_NOTIFY_CQM:
2969                 nl80211_cqm_event(drv, tb);
2970                 break;
2971         case NL80211_CMD_REG_CHANGE:
2972                 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
2973                 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL)
2974                         break;
2975                 os_memset(&data, 0, sizeof(data));
2976                 switch (nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])) {
2977                 case NL80211_REGDOM_SET_BY_CORE:
2978                         data.channel_list_changed.initiator =
2979                                 REGDOM_SET_BY_CORE;
2980                         break;
2981                 case NL80211_REGDOM_SET_BY_USER:
2982                         data.channel_list_changed.initiator =
2983                                 REGDOM_SET_BY_USER;
2984                         break;
2985                 case NL80211_REGDOM_SET_BY_DRIVER:
2986                         data.channel_list_changed.initiator =
2987                                 REGDOM_SET_BY_DRIVER;
2988                         break;
2989                 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
2990                         data.channel_list_changed.initiator =
2991                                 REGDOM_SET_BY_COUNTRY_IE;
2992                         break;
2993                 default:
2994                         wpa_printf(MSG_DEBUG, "nl80211: Unknown reg change initiator %d received",
2995                                    nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR]));
2996                         break;
2997                 }
2998                 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2999                                      &data);
3000                 break;
3001         case NL80211_CMD_REG_BEACON_HINT:
3002                 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
3003                 os_memset(&data, 0, sizeof(data));
3004                 data.channel_list_changed.initiator = REGDOM_BEACON_HINT;
3005                 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
3006                                      &data);
3007                 break;
3008         case NL80211_CMD_NEW_STATION:
3009                 nl80211_new_station_event(drv, tb);
3010                 break;
3011         case NL80211_CMD_DEL_STATION:
3012                 nl80211_del_station_event(drv, tb);
3013                 break;
3014         case NL80211_CMD_SET_REKEY_OFFLOAD:
3015                 nl80211_rekey_offload_event(drv, tb);
3016                 break;
3017         case NL80211_CMD_PMKSA_CANDIDATE:
3018                 nl80211_pmksa_candidate_event(drv, tb);
3019                 break;
3020         case NL80211_CMD_PROBE_CLIENT:
3021                 nl80211_client_probe_event(drv, tb);
3022                 break;
3023         case NL80211_CMD_TDLS_OPER:
3024                 nl80211_tdls_oper_event(drv, tb);
3025                 break;
3026         case NL80211_CMD_CONN_FAILED:
3027                 nl80211_connect_failed_event(drv, tb);
3028                 break;
3029         case NL80211_CMD_FT_EVENT:
3030                 mlme_event_ft_event(drv, tb);
3031                 break;
3032         case NL80211_CMD_RADAR_DETECT:
3033                 nl80211_radar_event(drv, tb);
3034                 break;
3035         case NL80211_CMD_STOP_AP:
3036                 nl80211_stop_ap(drv, tb);
3037                 break;
3038         case NL80211_CMD_VENDOR:
3039                 nl80211_vendor_event(drv, tb);
3040                 break;
3041         default:
3042                 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event "
3043                         "(cmd=%d)", cmd);
3044                 break;
3045         }
3046 }
3047
3048
3049 static int process_drv_event(struct nl_msg *msg, void *arg)
3050 {
3051         struct wpa_driver_nl80211_data *drv = arg;
3052         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3053         struct nlattr *tb[NL80211_ATTR_MAX + 1];
3054         struct i802_bss *bss;
3055         int ifidx = -1;
3056
3057         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3058                   genlmsg_attrlen(gnlh, 0), NULL);
3059
3060         if (tb[NL80211_ATTR_IFINDEX]) {
3061                 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
3062
3063                 for (bss = drv->first_bss; bss; bss = bss->next)
3064                         if (ifidx == -1 || ifidx == bss->ifindex) {
3065                                 do_process_drv_event(bss, gnlh->cmd, tb);
3066                                 return NL_SKIP;
3067                         }
3068                 wpa_printf(MSG_DEBUG,
3069                            "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)",
3070                            gnlh->cmd, ifidx);
3071         } else if (tb[NL80211_ATTR_WDEV]) {
3072                 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
3073                 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device");
3074                 for (bss = drv->first_bss; bss; bss = bss->next) {
3075                         if (bss->wdev_id_set && wdev_id == bss->wdev_id) {
3076                                 do_process_drv_event(bss, gnlh->cmd, tb);
3077                                 return NL_SKIP;
3078                         }
3079                 }
3080                 wpa_printf(MSG_DEBUG,
3081                            "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)",
3082                            gnlh->cmd, (long long unsigned int) wdev_id);
3083         }
3084
3085         return NL_SKIP;
3086 }
3087
3088
3089 static int process_global_event(struct nl_msg *msg, void *arg)
3090 {
3091         struct nl80211_global *global = arg;
3092         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3093         struct nlattr *tb[NL80211_ATTR_MAX + 1];
3094         struct wpa_driver_nl80211_data *drv, *tmp;
3095         int ifidx = -1;
3096         struct i802_bss *bss;
3097         u64 wdev_id = 0;
3098         int wdev_id_set = 0;
3099
3100         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3101                   genlmsg_attrlen(gnlh, 0), NULL);
3102
3103         if (tb[NL80211_ATTR_IFINDEX])
3104                 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
3105         else if (tb[NL80211_ATTR_WDEV]) {
3106                 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
3107                 wdev_id_set = 1;
3108         }
3109
3110         dl_list_for_each_safe(drv, tmp, &global->interfaces,
3111                               struct wpa_driver_nl80211_data, list) {
3112                 for (bss = drv->first_bss; bss; bss = bss->next) {
3113                         if ((ifidx == -1 && !wdev_id_set) ||
3114                             ifidx == bss->ifindex ||
3115                             (wdev_id_set && bss->wdev_id_set &&
3116                              wdev_id == bss->wdev_id)) {
3117                                 do_process_drv_event(bss, gnlh->cmd, tb);
3118                                 return NL_SKIP;
3119                         }
3120                 }
3121         }
3122
3123         return NL_SKIP;
3124 }
3125
3126
3127 static int process_bss_event(struct nl_msg *msg, void *arg)
3128 {
3129         struct i802_bss *bss = arg;
3130         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3131         struct nlattr *tb[NL80211_ATTR_MAX + 1];
3132
3133         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3134                   genlmsg_attrlen(gnlh, 0), NULL);
3135
3136         wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s",
3137                    gnlh->cmd, nl80211_command_to_string(gnlh->cmd),
3138                    bss->ifname);
3139
3140         switch (gnlh->cmd) {
3141         case NL80211_CMD_FRAME:
3142         case NL80211_CMD_FRAME_TX_STATUS:
3143                 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME],
3144                            tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
3145                            tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
3146                            tb[NL80211_ATTR_COOKIE],
3147                            tb[NL80211_ATTR_RX_SIGNAL_DBM]);
3148                 break;
3149         case NL80211_CMD_UNEXPECTED_FRAME:
3150                 nl80211_spurious_frame(bss, tb, 0);
3151                 break;
3152         case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
3153                 nl80211_spurious_frame(bss, tb, 1);
3154                 break;
3155         default:
3156                 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
3157                            "(cmd=%d)", gnlh->cmd);
3158                 break;
3159         }
3160
3161         return NL_SKIP;
3162 }
3163
3164
3165 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
3166                                              void *handle)
3167 {
3168         struct nl_cb *cb = eloop_ctx;
3169         int res;
3170
3171         wpa_printf(MSG_MSGDUMP, "nl80211: Event message available");
3172
3173         res = nl_recvmsgs(handle, cb);
3174         if (res) {
3175                 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
3176                            __func__, res);
3177         }
3178 }
3179
3180
3181 /**
3182  * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
3183  * @priv: driver_nl80211 private data
3184  * @alpha2_arg: country to which to switch to
3185  * Returns: 0 on success, -1 on failure
3186  *
3187  * This asks nl80211 to set the regulatory domain for given
3188  * country ISO / IEC alpha2.
3189  */
3190 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
3191 {
3192         struct i802_bss *bss = priv;
3193         struct wpa_driver_nl80211_data *drv = bss->drv;
3194         char alpha2[3];
3195         struct nl_msg *msg;
3196
3197         msg = nlmsg_alloc();
3198         if (!msg)
3199                 return -ENOMEM;
3200
3201         alpha2[0] = alpha2_arg[0];
3202         alpha2[1] = alpha2_arg[1];
3203         alpha2[2] = '\0';
3204
3205         nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
3206
3207         NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
3208         if (send_and_recv_msgs(drv, msg, NULL, NULL))
3209                 return -EINVAL;
3210         return 0;
3211 nla_put_failure:
3212         nlmsg_free(msg);
3213         return -EINVAL;
3214 }
3215
3216
3217 static int nl80211_get_country(struct nl_msg *msg, void *arg)
3218 {
3219         char *alpha2 = arg;
3220         struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3221         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3222
3223         nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3224                   genlmsg_attrlen(gnlh, 0), NULL);
3225         if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) {
3226                 wpa_printf(MSG_DEBUG, "nl80211: No country information available");
3227                 return NL_SKIP;
3228         }
3229         os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3);
3230         return NL_SKIP;
3231 }
3232
3233
3234 static int wpa_driver_nl80211_get_country(void *priv, char *alpha2)
3235 {
3236         struct i802_bss *bss = priv;
3237         struct wpa_driver_nl80211_data *drv = bss->drv;
3238         struct nl_msg *msg;
3239         int ret;
3240
3241         msg = nlmsg_alloc();
3242         if (!msg)
3243                 return -ENOMEM;
3244
3245         nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
3246         alpha2[0] = '\0';
3247         ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2);
3248         if (!alpha2[0])
3249                 ret = -1;
3250
3251         return ret;
3252 }
3253
3254
3255 static int protocol_feature_handler(struct nl_msg *msg, void *arg)
3256 {
3257         u32 *feat = arg;
3258         struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3259         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3260
3261         nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3262                   genlmsg_attrlen(gnlh, 0), NULL);
3263
3264         if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES])
3265                 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]);
3266
3267         return NL_SKIP;
3268 }
3269
3270
3271 static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv)
3272 {
3273         u32 feat = 0;
3274         struct nl_msg *msg;
3275
3276         msg = nlmsg_alloc();
3277         if (!msg)
3278                 goto nla_put_failure;
3279
3280         nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES);
3281         if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0)
3282                 return feat;
3283
3284         msg = NULL;
3285 nla_put_failure:
3286         nlmsg_free(msg);
3287         return 0;
3288 }
3289
3290
3291 struct wiphy_info_data {
3292         struct wpa_driver_nl80211_data *drv;
3293         struct wpa_driver_capa *capa;
3294
3295         unsigned int num_multichan_concurrent;
3296
3297         unsigned int error:1;
3298         unsigned int device_ap_sme:1;
3299         unsigned int poll_command_supported:1;
3300         unsigned int data_tx_status:1;
3301         unsigned int monitor_supported:1;
3302         unsigned int auth_supported:1;
3303         unsigned int connect_supported:1;
3304         unsigned int p2p_go_supported:1;
3305         unsigned int p2p_client_supported:1;
3306         unsigned int p2p_concurrent:1;
3307         unsigned int channel_switch_supported:1;
3308         unsigned int set_qos_map_supported:1;
3309 };
3310
3311
3312 static unsigned int probe_resp_offload_support(int supp_protocols)
3313 {
3314         unsigned int prot = 0;
3315
3316         if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
3317                 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
3318         if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
3319                 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
3320         if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
3321                 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
3322         if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
3323                 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
3324
3325         return prot;
3326 }
3327
3328
3329 static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
3330                                          struct nlattr *tb)
3331 {
3332         struct nlattr *nl_mode;
3333         int i;
3334
3335         if (tb == NULL)
3336                 return;
3337
3338         nla_for_each_nested(nl_mode, tb, i) {
3339                 switch (nla_type(nl_mode)) {
3340                 case NL80211_IFTYPE_AP:
3341                         info->capa->flags |= WPA_DRIVER_FLAGS_AP;
3342                         break;
3343                 case NL80211_IFTYPE_ADHOC:
3344                         info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
3345                         break;
3346                 case NL80211_IFTYPE_P2P_DEVICE:
3347                         info->capa->flags |=
3348                                 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
3349                         break;
3350                 case NL80211_IFTYPE_P2P_GO:
3351                         info->p2p_go_supported = 1;
3352                         break;
3353                 case NL80211_IFTYPE_P2P_CLIENT:
3354                         info->p2p_client_supported = 1;
3355                         break;
3356                 case NL80211_IFTYPE_MONITOR:
3357                         info->monitor_supported = 1;
3358                         break;
3359                 }
3360         }
3361 }
3362
3363
3364 static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
3365                                          struct nlattr *nl_combi)
3366 {
3367         struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
3368         struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
3369         struct nlattr *nl_limit, *nl_mode;
3370         int err, rem_limit, rem_mode;
3371         int combination_has_p2p = 0, combination_has_mgd = 0;
3372         static struct nla_policy
3373         iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
3374                 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
3375                 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
3376                 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
3377                 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
3378                 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
3379         },
3380         iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
3381                 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
3382                 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
3383         };
3384
3385         err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
3386                                nl_combi, iface_combination_policy);
3387         if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
3388             !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
3389             !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
3390                 return 0; /* broken combination */
3391
3392         if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
3393                 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
3394
3395         nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
3396                             rem_limit) {
3397                 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
3398                                        nl_limit, iface_limit_policy);
3399                 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
3400                         return 0; /* broken combination */
3401
3402                 nla_for_each_nested(nl_mode,
3403                                     tb_limit[NL80211_IFACE_LIMIT_TYPES],
3404                                     rem_mode) {
3405                         int ift = nla_type(nl_mode);
3406                         if (ift == NL80211_IFTYPE_P2P_GO ||
3407                             ift == NL80211_IFTYPE_P2P_CLIENT)
3408                                 combination_has_p2p = 1;
3409                         if (ift == NL80211_IFTYPE_STATION)
3410                                 combination_has_mgd = 1;
3411                 }
3412                 if (combination_has_p2p && combination_has_mgd)
3413                         break;
3414         }
3415
3416         if (combination_has_p2p && combination_has_mgd) {
3417                 info->p2p_concurrent = 1;
3418                 info->num_multichan_concurrent =
3419                         nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]);
3420                 return 1;
3421         }
3422
3423         return 0;
3424 }
3425
3426
3427 static void wiphy_info_iface_comb(struct wiphy_info_data *info,
3428                                   struct nlattr *tb)
3429 {
3430         struct nlattr *nl_combi;
3431         int rem_combi;
3432
3433         if (tb == NULL)
3434                 return;
3435
3436         nla_for_each_nested(nl_combi, tb, rem_combi) {
3437                 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
3438                         break;
3439         }
3440 }
3441
3442
3443 static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
3444                                  struct nlattr *tb)
3445 {
3446         struct nlattr *nl_cmd;
3447         int i;
3448
3449         if (tb == NULL)
3450                 return;
3451
3452         nla_for_each_nested(nl_cmd, tb, i) {
3453                 switch (nla_get_u32(nl_cmd)) {
3454                 case NL80211_CMD_AUTHENTICATE:
3455                         info->auth_supported = 1;
3456                         break;
3457                 case NL80211_CMD_CONNECT:
3458                         info->connect_supported = 1;
3459                         break;
3460                 case NL80211_CMD_START_SCHED_SCAN:
3461                         info->capa->sched_scan_supported = 1;
3462                         break;
3463                 case NL80211_CMD_PROBE_CLIENT:
3464                         info->poll_command_supported = 1;
3465                         break;
3466                 case NL80211_CMD_CHANNEL_SWITCH:
3467                         info->channel_switch_supported = 1;
3468                         break;
3469                 case NL80211_CMD_SET_QOS_MAP:
3470                         info->set_qos_map_supported = 1;
3471                         break;
3472                 }
3473         }
3474 }
3475
3476
3477 static void wiphy_info_cipher_suites(struct wiphy_info_data *info,
3478                                      struct nlattr *tb)
3479 {
3480         int i, num;
3481         u32 *ciphers;
3482
3483         if (tb == NULL)
3484                 return;
3485
3486         num = nla_len(tb) / sizeof(u32);
3487         ciphers = nla_data(tb);
3488         for (i = 0; i < num; i++) {
3489                 u32 c = ciphers[i];
3490
3491                 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d",
3492                            c >> 24, (c >> 16) & 0xff,
3493                            (c >> 8) & 0xff, c & 0xff);
3494                 switch (c) {
3495                 case WLAN_CIPHER_SUITE_CCMP_256:
3496                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256;
3497                         break;
3498                 case WLAN_CIPHER_SUITE_GCMP_256:
3499                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256;
3500                         break;
3501                 case WLAN_CIPHER_SUITE_CCMP:
3502                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP;
3503                         break;
3504                 case WLAN_CIPHER_SUITE_GCMP:
3505                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP;
3506                         break;
3507                 case WLAN_CIPHER_SUITE_TKIP:
3508                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP;
3509                         break;
3510                 case WLAN_CIPHER_SUITE_WEP104:
3511                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104;
3512                         break;
3513                 case WLAN_CIPHER_SUITE_WEP40:
3514                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40;
3515                         break;
3516                 case WLAN_CIPHER_SUITE_AES_CMAC:
3517                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP;
3518                         break;
3519                 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
3520                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128;
3521                         break;
3522                 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
3523                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256;
3524                         break;
3525                 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
3526                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256;
3527                         break;
3528                 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR:
3529                         info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED;
3530                         break;
3531                 }
3532         }
3533 }
3534
3535
3536 static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
3537                                struct nlattr *tb)
3538 {
3539         if (tb)
3540                 capa->max_remain_on_chan = nla_get_u32(tb);
3541 }
3542
3543
3544 static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
3545                             struct nlattr *ext_setup)
3546 {
3547         if (tdls == NULL)
3548                 return;
3549
3550         wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
3551         capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
3552
3553         if (ext_setup) {
3554                 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
3555                 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
3556         }
3557 }
3558
3559
3560 static void wiphy_info_feature_flags(struct wiphy_info_data *info,
3561                                      struct nlattr *tb)
3562 {
3563         u32 flags;
3564         struct wpa_driver_capa *capa = info->capa;
3565
3566         if (tb == NULL)
3567                 return;
3568
3569         flags = nla_get_u32(tb);
3570
3571         if (flags & NL80211_FEATURE_SK_TX_STATUS)
3572                 info->data_tx_status = 1;
3573
3574         if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
3575                 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
3576
3577         if (flags & NL80211_FEATURE_SAE)
3578                 capa->flags |= WPA_DRIVER_FLAGS_SAE;
3579
3580         if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
3581                 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
3582 }
3583
3584
3585 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
3586                                           struct nlattr *tb)
3587 {
3588         u32 protocols;
3589
3590         if (tb == NULL)
3591                 return;
3592
3593         protocols = nla_get_u32(tb);
3594         wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
3595                    "mode");
3596         capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
3597         capa->probe_resp_offloads = probe_resp_offload_support(protocols);
3598 }
3599
3600
3601 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
3602 {
3603         struct nlattr *tb[NL80211_ATTR_MAX + 1];
3604         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3605         struct wiphy_info_data *info = arg;
3606         struct wpa_driver_capa *capa = info->capa;
3607         struct wpa_driver_nl80211_data *drv = info->drv;
3608
3609         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3610                   genlmsg_attrlen(gnlh, 0), NULL);
3611
3612         if (tb[NL80211_ATTR_WIPHY_NAME])
3613                 os_strlcpy(drv->phyname,
3614                            nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
3615                            sizeof(drv->phyname));
3616         if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
3617                 capa->max_scan_ssids =
3618                         nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
3619
3620         if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
3621                 capa->max_sched_scan_ssids =
3622                         nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
3623
3624         if (tb[NL80211_ATTR_MAX_MATCH_SETS])
3625                 capa->max_match_sets =
3626                         nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
3627
3628         if (tb[NL80211_ATTR_MAC_ACL_MAX])
3629                 capa->max_acl_mac_addrs =
3630                         nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
3631
3632         wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
3633         wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
3634         wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
3635         wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]);
3636
3637         if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
3638                 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
3639                            "off-channel TX");
3640                 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
3641         }
3642
3643         if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
3644                 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
3645                 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
3646         }
3647
3648         wiphy_info_max_roc(capa,
3649                            tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
3650
3651         if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
3652                 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
3653
3654         wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
3655                         tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
3656
3657         if (tb[NL80211_ATTR_DEVICE_AP_SME])
3658                 info->device_ap_sme = 1;
3659
3660         wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
3661         wiphy_info_probe_resp_offload(capa,
3662                                       tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
3663
3664         if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
3665             drv->extended_capa == NULL) {
3666                 drv->extended_capa =
3667                         os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3668                 if (drv->extended_capa) {
3669                         os_memcpy(drv->extended_capa,
3670                                   nla_data(tb[NL80211_ATTR_EXT_CAPA]),
3671                                   nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3672                         drv->extended_capa_len =
3673                                 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
3674                 }
3675                 drv->extended_capa_mask =
3676                         os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3677                 if (drv->extended_capa_mask) {
3678                         os_memcpy(drv->extended_capa_mask,
3679                                   nla_data(tb[NL80211_ATTR_EXT_CAPA]),
3680                                   nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3681                 } else {
3682                         os_free(drv->extended_capa);
3683                         drv->extended_capa = NULL;
3684                         drv->extended_capa_len = 0;
3685                 }
3686         }
3687
3688         if (tb[NL80211_ATTR_VENDOR_DATA]) {
3689                 struct nlattr *nl;
3690                 int rem;
3691
3692                 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) {
3693                         struct nl80211_vendor_cmd_info *vinfo;
3694                         if (nla_len(nl) != sizeof(*vinfo)) {
3695                                 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
3696                                 continue;
3697                         }
3698                         vinfo = nla_data(nl);
3699                         wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
3700                                    vinfo->vendor_id, vinfo->subcmd);
3701                 }
3702         }
3703
3704         if (tb[NL80211_ATTR_VENDOR_EVENTS]) {
3705                 struct nlattr *nl;
3706                 int rem;
3707
3708                 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) {
3709                         struct nl80211_vendor_cmd_info *vinfo;
3710                         if (nla_len(nl) != sizeof(*vinfo)) {
3711                                 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
3712                                 continue;
3713                         }
3714                         vinfo = nla_data(nl);
3715                         wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u",
3716                                    vinfo->vendor_id, vinfo->subcmd);
3717                 }
3718         }
3719
3720         return NL_SKIP;
3721 }
3722
3723
3724 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
3725                                        struct wiphy_info_data *info)
3726 {
3727         u32 feat;
3728         struct nl_msg *msg;
3729
3730         os_memset(info, 0, sizeof(*info));
3731         info->capa = &drv->capa;
3732         info->drv = drv;
3733
3734         msg = nlmsg_alloc();
3735         if (!msg)
3736                 return -1;
3737
3738         feat = get_nl80211_protocol_features(drv);
3739         if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
3740                 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
3741         else
3742                 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
3743
3744         NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
3745         if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
3746                 goto nla_put_failure;
3747
3748         if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
3749                 return -1;
3750
3751         if (info->auth_supported)
3752                 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
3753         else if (!info->connect_supported) {
3754                 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
3755                            "authentication/association or connect commands");
3756                 info->error = 1;
3757         }
3758
3759         if (info->p2p_go_supported && info->p2p_client_supported)
3760                 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
3761         if (info->p2p_concurrent) {
3762                 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
3763                            "interface (driver advertised support)");
3764                 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
3765                 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
3766         }
3767         if (info->num_multichan_concurrent > 1) {
3768                 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
3769                            "concurrent (driver advertised support)");
3770                 drv->capa.num_multichan_concurrent =
3771                         info->num_multichan_concurrent;
3772         }
3773
3774         /* default to 5000 since early versions of mac80211 don't set it */
3775         if (!drv->capa.max_remain_on_chan)
3776                 drv->capa.max_remain_on_chan = 5000;
3777
3778         if (info->channel_switch_supported)
3779                 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA;
3780
3781         return 0;
3782 nla_put_failure:
3783         nlmsg_free(msg);
3784         return -1;
3785 }
3786
3787
3788 static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
3789 {
3790         struct wiphy_info_data info;
3791         if (wpa_driver_nl80211_get_info(drv, &info))
3792                 return -1;
3793
3794         if (info.error)
3795                 return -1;
3796
3797         drv->has_capability = 1;
3798         drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
3799                 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
3800                 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
3801                 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
3802         drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
3803                 WPA_DRIVER_AUTH_SHARED |
3804                 WPA_DRIVER_AUTH_LEAP;
3805
3806         drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
3807         drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
3808         drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
3809
3810         if (!info.device_ap_sme) {
3811                 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
3812
3813                 /*
3814                  * No AP SME is currently assumed to also indicate no AP MLME
3815                  * in the driver/firmware.
3816                  */
3817                 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
3818         }
3819
3820         drv->device_ap_sme = info.device_ap_sme;
3821         drv->poll_command_supported = info.poll_command_supported;
3822         drv->data_tx_status = info.data_tx_status;
3823         if (info.set_qos_map_supported)
3824                 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
3825
3826         /*
3827          * If poll command and tx status are supported, mac80211 is new enough
3828          * to have everything we need to not need monitor interfaces.
3829          */
3830         drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
3831
3832         if (drv->device_ap_sme && drv->use_monitor) {
3833                 /*
3834                  * Non-mac80211 drivers may not support monitor interface.
3835                  * Make sure we do not get stuck with incorrect capability here
3836                  * by explicitly testing this.
3837                  */
3838                 if (!info.monitor_supported) {
3839                         wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
3840                                    "with device_ap_sme since no monitor mode "
3841                                    "support detected");
3842                         drv->use_monitor = 0;
3843                 }
3844         }
3845
3846         /*
3847          * If we aren't going to use monitor interfaces, but the
3848          * driver doesn't support data TX status, we won't get TX
3849          * status for EAPOL frames.
3850          */
3851         if (!drv->use_monitor && !info.data_tx_status)
3852                 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
3853
3854         return 0;
3855 }
3856
3857
3858 #ifdef ANDROID
3859 static int android_genl_ctrl_resolve(struct nl_handle *handle,
3860                                      const char *name)
3861 {
3862         /*
3863          * Android ICS has very minimal genl_ctrl_resolve() implementation, so
3864          * need to work around that.
3865          */
3866         struct nl_cache *cache = NULL;
3867         struct genl_family *nl80211 = NULL;
3868         int id = -1;
3869
3870         if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
3871                 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
3872                            "netlink cache");
3873                 goto fail;
3874         }
3875
3876         nl80211 = genl_ctrl_search_by_name(cache, name);
3877         if (nl80211 == NULL)
3878                 goto fail;
3879
3880         id = genl_family_get_id(nl80211);
3881
3882 fail:
3883         if (nl80211)
3884                 genl_family_put(nl80211);
3885         if (cache)
3886                 nl_cache_free(cache);
3887
3888         return id;
3889 }
3890 #define genl_ctrl_resolve android_genl_ctrl_resolve
3891 #endif /* ANDROID */
3892
3893
3894 static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
3895 {
3896         int ret;
3897
3898         global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3899         if (global->nl_cb == NULL) {
3900                 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
3901                            "callbacks");
3902                 return -1;
3903         }
3904
3905         global->nl = nl_create_handle(global->nl_cb, "nl");
3906         if (global->nl == NULL)
3907                 goto err;
3908
3909         global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
3910         if (global->nl80211_id < 0) {
3911                 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
3912                            "found");
3913                 goto err;
3914         }
3915
3916         global->nl_event = nl_create_handle(global->nl_cb, "event");
3917         if (global->nl_event == NULL)
3918                 goto err;
3919
3920         ret = nl_get_multicast_id(global, "nl80211", "scan");
3921         if (ret >= 0)
3922                 ret = nl_socket_add_membership(global->nl_event, ret);
3923         if (ret < 0) {
3924                 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3925                            "membership for scan events: %d (%s)",
3926                            ret, strerror(-ret));
3927                 goto err;
3928         }
3929
3930         ret = nl_get_multicast_id(global, "nl80211", "mlme");
3931         if (ret >= 0)
3932                 ret = nl_socket_add_membership(global->nl_event, ret);
3933         if (ret < 0) {
3934                 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3935                            "membership for mlme events: %d (%s)",
3936                            ret, strerror(-ret));
3937                 goto err;
3938         }
3939
3940         ret = nl_get_multicast_id(global, "nl80211", "regulatory");
3941         if (ret >= 0)
3942                 ret = nl_socket_add_membership(global->nl_event, ret);
3943         if (ret < 0) {
3944                 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
3945                            "membership for regulatory events: %d (%s)",
3946                            ret, strerror(-ret));
3947                 /* Continue without regulatory events */
3948         }
3949
3950         ret = nl_get_multicast_id(global, "nl80211", "vendor");
3951         if (ret >= 0)
3952                 ret = nl_socket_add_membership(global->nl_event, ret);
3953         if (ret < 0) {
3954                 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
3955                            "membership for vendor events: %d (%s)",
3956                            ret, strerror(-ret));
3957                 /* Continue without vendor events */
3958         }
3959
3960         nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3961                   no_seq_check, NULL);
3962         nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3963                   process_global_event, global);
3964
3965         nl80211_register_eloop_read(&global->nl_event,
3966                                     wpa_driver_nl80211_event_receive,
3967                                     global->nl_cb);
3968
3969         return 0;
3970
3971 err:
3972         nl_destroy_handles(&global->nl_event);
3973         nl_destroy_handles(&global->nl);
3974         nl_cb_put(global->nl_cb);
3975         global->nl_cb = NULL;
3976         return -1;
3977 }
3978
3979
3980 static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3981 {
3982         drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3983         if (!drv->nl_cb) {
3984                 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
3985                 return -1;
3986         }
3987
3988         nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3989                   no_seq_check, NULL);
3990         nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3991                   process_drv_event, drv);
3992
3993         return 0;
3994 }
3995
3996
3997 static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
3998 {
3999         wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
4000         /*
4001          * This may be for any interface; use ifdown event to disable
4002          * interface.
4003          */
4004 }
4005
4006
4007 static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
4008 {
4009         struct wpa_driver_nl80211_data *drv = ctx;
4010         wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
4011         if (i802_set_iface_flags(drv->first_bss, 1)) {
4012                 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
4013                            "after rfkill unblock");
4014                 return;
4015         }
4016         /* rtnetlink ifup handler will report interface as enabled */
4017 }
4018
4019
4020 static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
4021                                                       void *eloop_ctx,
4022                                                       void *handle)
4023 {
4024         struct wpa_driver_nl80211_data *drv = eloop_ctx;
4025         u8 data[2048];
4026         struct msghdr msg;
4027         struct iovec entry;
4028         u8 control[512];
4029         struct cmsghdr *cmsg;
4030         int res, found_ee = 0, found_wifi = 0, acked = 0;
4031         union wpa_event_data event;
4032
4033         memset(&msg, 0, sizeof(msg));
4034         msg.msg_iov = &entry;
4035         msg.msg_iovlen = 1;
4036         entry.iov_base = data;
4037         entry.iov_len = sizeof(data);
4038         msg.msg_control = &control;
4039         msg.msg_controllen = sizeof(control);
4040
4041         res = recvmsg(sock, &msg, MSG_ERRQUEUE);
4042         /* if error or not fitting 802.3 header, return */
4043         if (res < 14)
4044                 return;
4045
4046         for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
4047         {
4048                 if (cmsg->cmsg_level == SOL_SOCKET &&
4049                     cmsg->cmsg_type == SCM_WIFI_STATUS) {
4050                         int *ack;
4051
4052                         found_wifi = 1;
4053                         ack = (void *)CMSG_DATA(cmsg);
4054                         acked = *ack;
4055                 }
4056
4057                 if (cmsg->cmsg_level == SOL_PACKET &&
4058                     cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
4059                         struct sock_extended_err *err =
4060                                 (struct sock_extended_err *)CMSG_DATA(cmsg);
4061
4062                         if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
4063                                 found_ee = 1;
4064                 }
4065         }
4066
4067         if (!found_ee || !found_wifi)
4068                 return;
4069
4070         memset(&event, 0, sizeof(event));
4071         event.eapol_tx_status.dst = data;
4072         event.eapol_tx_status.data = data + 14;
4073         event.eapol_tx_status.data_len = res - 14;
4074         event.eapol_tx_status.ack = acked;
4075         wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
4076 }
4077
4078
4079 static int nl80211_init_bss(struct i802_bss *bss)
4080 {
4081         bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
4082         if (!bss->nl_cb)
4083                 return -1;
4084
4085         nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
4086                   no_seq_check, NULL);
4087         nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
4088                   process_bss_event, bss);
4089
4090         return 0;
4091 }
4092
4093
4094 static void nl80211_destroy_bss(struct i802_bss *bss)
4095 {
4096         nl_cb_put(bss->nl_cb);
4097         bss->nl_cb = NULL;
4098 }
4099
4100
4101 static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname,
4102                                           void *global_priv, int hostapd,
4103                                           const u8 *set_addr)
4104 {
4105         struct wpa_driver_nl80211_data *drv;
4106         struct rfkill_config *rcfg;
4107         struct i802_bss *bss;
4108
4109         if (global_priv == NULL)
4110                 return NULL;
4111         drv = os_zalloc(sizeof(*drv));
4112         if (drv == NULL)
4113                 return NULL;
4114         drv->global = global_priv;
4115         drv->ctx = ctx;
4116         drv->hostapd = !!hostapd;
4117         drv->eapol_sock = -1;
4118         drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
4119         drv->if_indices = drv->default_if_indices;
4120
4121         drv->first_bss = os_zalloc(sizeof(*drv->first_bss));
4122         if (!drv->first_bss) {
4123                 os_free(drv);
4124                 return NULL;
4125         }
4126         bss = drv->first_bss;
4127         bss->drv = drv;
4128         bss->ctx = ctx;
4129
4130         os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
4131         drv->monitor_ifidx = -1;
4132         drv->monitor_sock = -1;
4133         drv->eapol_tx_sock = -1;
4134         drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
4135
4136         if (wpa_driver_nl80211_init_nl(drv)) {
4137                 os_free(drv);
4138                 return NULL;
4139         }
4140
4141         if (nl80211_init_bss(bss))
4142                 goto failed;
4143
4144         rcfg = os_zalloc(sizeof(*rcfg));
4145         if (rcfg == NULL)
4146                 goto failed;
4147         rcfg->ctx = drv;
4148         os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
4149         rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
4150         rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
4151         drv->rfkill = rfkill_init(rcfg);
4152         if (drv->rfkill == NULL) {
4153                 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
4154                 os_free(rcfg);
4155         }
4156
4157         if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0)
4158                 drv->start_iface_up = 1;
4159
4160         if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1))
4161                 goto failed;
4162
4163         drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
4164         if (drv->eapol_tx_sock < 0)
4165                 goto failed;
4166
4167         if (drv->data_tx_status) {
4168                 int enabled = 1;
4169
4170                 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
4171                                &enabled, sizeof(enabled)) < 0) {
4172                         wpa_printf(MSG_DEBUG,
4173                                 "nl80211: wifi status sockopt failed\n");
4174                         drv->data_tx_status = 0;
4175                         if (!drv->use_monitor)
4176                                 drv->capa.flags &=
4177                                         ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
4178                 } else {
4179                         eloop_register_read_sock(drv->eapol_tx_sock,
4180                                 wpa_driver_nl80211_handle_eapol_tx_status,
4181                                 drv, NULL);
4182                 }
4183         }
4184
4185         if (drv->global) {
4186                 dl_list_add(&drv->global->interfaces, &drv->list);
4187                 drv->in_interface_list = 1;
4188         }
4189
4190         return bss;
4191
4192 failed:
4193         wpa_driver_nl80211_deinit(bss);
4194         return NULL;
4195 }
4196
4197
4198 /**
4199  * wpa_driver_nl80211_init - Initialize nl80211 driver interface
4200  * @ctx: context to be used when calling wpa_supplicant functions,
4201  * e.g., wpa_supplicant_event()
4202  * @ifname: interface name, e.g., wlan0
4203  * @global_priv: private driver global data from global_init()
4204  * Returns: Pointer to private data, %NULL on failure
4205  */
4206 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
4207                                       void *global_priv)
4208 {
4209         return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL);
4210 }
4211
4212
4213 static int nl80211_register_frame(struct i802_bss *bss,
4214                                   struct nl_handle *nl_handle,
4215                                   u16 type, const u8 *match, size_t match_len)
4216 {
4217         struct wpa_driver_nl80211_data *drv = bss->drv;
4218         struct nl_msg *msg;
4219         int ret = -1;
4220         char buf[30];
4221
4222         msg = nlmsg_alloc();
4223         if (!msg)
4224                 return -1;
4225
4226         buf[0] = '\0';
4227         wpa_snprintf_hex(buf, sizeof(buf), match, match_len);
4228         wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p match=%s",
4229                    type, nl_handle, buf);
4230
4231         nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
4232
4233         if (nl80211_set_iface_id(msg, bss) < 0)
4234                 goto nla_put_failure;
4235
4236         NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
4237         NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
4238
4239         ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
4240         msg = NULL;
4241         if (ret) {
4242                 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
4243                            "failed (type=%u): ret=%d (%s)",
4244                            type, ret, strerror(-ret));
4245                 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
4246                             match, match_len);
4247                 goto nla_put_failure;
4248         }
4249         ret = 0;
4250 nla_put_failure:
4251         nlmsg_free(msg);
4252         return ret;
4253 }
4254
4255
4256 static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
4257 {
4258         struct wpa_driver_nl80211_data *drv = bss->drv;
4259
4260         if (bss->nl_mgmt) {
4261                 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
4262                            "already on! (nl_mgmt=%p)", bss->nl_mgmt);
4263                 return -1;
4264         }
4265
4266         bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
4267         if (bss->nl_mgmt == NULL)
4268                 return -1;
4269
4270         return 0;
4271 }
4272
4273
4274 static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss)
4275 {
4276         nl80211_register_eloop_read(&bss->nl_mgmt,
4277                                     wpa_driver_nl80211_event_receive,
4278                                     bss->nl_cb);
4279 }
4280
4281
4282 static int nl80211_register_action_frame(struct i802_bss *bss,
4283                                          const u8 *match, size_t match_len)
4284 {
4285         u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
4286         return nl80211_register_frame(bss, bss->nl_mgmt,
4287                                       type, match, match_len);
4288 }
4289
4290
4291 static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
4292 {
4293         struct wpa_driver_nl80211_data *drv = bss->drv;
4294         int ret = 0;
4295
4296         if (nl80211_alloc_mgmt_handle(bss))
4297                 return -1;
4298         wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
4299                    "handle %p", bss->nl_mgmt);
4300
4301         if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
4302                 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
4303
4304                 /* register for any AUTH message */
4305                 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0);
4306         }
4307
4308 #ifdef CONFIG_INTERWORKING
4309         /* QoS Map Configure */
4310         if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0)
4311                 ret = -1;
4312 #endif /* CONFIG_INTERWORKING */
4313 #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
4314         /* GAS Initial Request */
4315         if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
4316                 ret = -1;
4317         /* GAS Initial Response */
4318         if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
4319                 ret = -1;
4320         /* GAS Comeback Request */
4321         if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
4322                 ret = -1;
4323         /* GAS Comeback Response */
4324         if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
4325                 ret = -1;
4326         /* Protected GAS Initial Request */
4327         if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0)
4328                 ret = -1;
4329         /* Protected GAS Initial Response */
4330         if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0)
4331                 ret = -1;
4332         /* Protected GAS Comeback Request */
4333         if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0)
4334                 ret = -1;
4335         /* Protected GAS Comeback Response */
4336         if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0)
4337                 ret = -1;
4338 #endif /* CONFIG_P2P || CONFIG_INTERWORKING */
4339 #ifdef CONFIG_P2P
4340         /* P2P Public Action */
4341         if (nl80211_register_action_frame(bss,
4342                                           (u8 *) "\x04\x09\x50\x6f\x9a\x09",
4343                                           6) < 0)
4344                 ret = -1;
4345         /* P2P Action */
4346         if (nl80211_register_action_frame(bss,
4347                                           (u8 *) "\x7f\x50\x6f\x9a\x09",
4348                                           5) < 0)
4349                 ret = -1;
4350 #endif /* CONFIG_P2P */
4351 #ifdef CONFIG_IEEE80211W
4352         /* SA Query Response */
4353         if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
4354                 ret = -1;
4355 #endif /* CONFIG_IEEE80211W */
4356 #ifdef CONFIG_TDLS
4357         if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
4358                 /* TDLS Discovery Response */
4359                 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
4360                     0)
4361                         ret = -1;
4362         }
4363 #endif /* CONFIG_TDLS */
4364
4365         /* FT Action frames */
4366         if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
4367                 ret = -1;
4368         else
4369                 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
4370                         WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
4371
4372         /* WNM - BSS Transition Management Request */
4373         if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
4374                 ret = -1;
4375         /* WNM-Sleep Mode Response */
4376         if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0)
4377                 ret = -1;
4378
4379         nl80211_mgmt_handle_register_eloop(bss);
4380
4381         return ret;
4382 }
4383
4384
4385 static int nl80211_register_spurious_class3(struct i802_bss *bss)
4386 {
4387         struct wpa_driver_nl80211_data *drv = bss->drv;
4388         struct nl_msg *msg;
4389         int ret = -1;
4390
4391         msg = nlmsg_alloc();
4392         if (!msg)
4393                 return -1;
4394
4395         nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
4396
4397         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
4398
4399         ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
4400         msg = NULL;
4401         if (ret) {
4402                 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
4403                            "failed: ret=%d (%s)",
4404                            ret, strerror(-ret));
4405                 goto nla_put_failure;
4406         }
4407         ret = 0;
4408 nla_put_failure:
4409         nlmsg_free(msg);
4410         return ret;
4411 }
4412
4413
4414 static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
4415 {
4416         static const int stypes[] = {
4417                 WLAN_FC_STYPE_AUTH,
4418                 WLAN_FC_STYPE_ASSOC_REQ,
4419                 WLAN_FC_STYPE_REASSOC_REQ,
4420                 WLAN_FC_STYPE_DISASSOC,
4421                 WLAN_FC_STYPE_DEAUTH,
4422                 WLAN_FC_STYPE_ACTION,
4423                 WLAN_FC_STYPE_PROBE_REQ,
4424 /* Beacon doesn't work as mac80211 doesn't currently allow
4425  * it, but it wouldn't really be the right thing anyway as
4426  * it isn't per interface ... maybe just dump the scan
4427  * results periodically for OLBC?
4428  */
4429 //              WLAN_FC_STYPE_BEACON,
4430         };
4431         unsigned int i;
4432
4433         if (nl80211_alloc_mgmt_handle(bss))
4434                 return -1;
4435         wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
4436                    "handle %p", bss->nl_mgmt);
4437
4438         for (i = 0; i < ARRAY_SIZE(stypes); i++) {
4439                 if (nl80211_register_frame(bss, bss->nl_mgmt,
4440                                            (WLAN_FC_TYPE_MGMT << 2) |
4441                                            (stypes[i] << 4),
4442                                            NULL, 0) < 0) {
4443                         goto out_err;
4444                 }
4445         }
4446
4447         if (nl80211_register_spurious_class3(bss))
4448                 goto out_err;
4449
4450         if (nl80211_get_wiphy_data_ap(bss) == NULL)
4451                 goto out_err;
4452
4453         nl80211_mgmt_handle_register_eloop(bss);
4454         return 0;
4455
4456 out_err:
4457         nl_destroy_handles(&bss->nl_mgmt);
4458         return -1;
4459 }
4460
4461
4462 static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
4463 {
4464         if (nl80211_alloc_mgmt_handle(bss))
4465                 return -1;
4466         wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
4467                    "handle %p (device SME)", bss->nl_mgmt);
4468
4469         if (nl80211_register_frame(bss, bss->nl_mgmt,
4470                                    (WLAN_FC_TYPE_MGMT << 2) |
4471                                    (WLAN_FC_STYPE_ACTION << 4),
4472                                    NULL, 0) < 0)
4473                 goto out_err;
4474
4475         nl80211_mgmt_handle_register_eloop(bss);
4476         return 0;
4477
4478 out_err:
4479         nl_destroy_handles(&bss->nl_mgmt);
4480         return -1;
4481 }
4482
4483
4484 static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
4485 {
4486         if (bss->nl_mgmt == NULL)
4487                 return;
4488         wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
4489                    "(%s)", bss->nl_mgmt, reason);
4490         nl80211_destroy_eloop_handle(&bss->nl_mgmt);
4491
4492         nl80211_put_wiphy_data_ap(bss);
4493 }
4494
4495
4496 static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
4497 {
4498         wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
4499 }
4500
4501
4502 static void nl80211_del_p2pdev(struct i802_bss *bss)
4503 {
4504         struct wpa_driver_nl80211_data *drv = bss->drv;
4505         struct nl_msg *msg;
4506         int ret;
4507
4508         msg = nlmsg_alloc();
4509         if (!msg)
4510                 return;
4511
4512         nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
4513         NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
4514
4515         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4516         msg = NULL;
4517
4518         wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s",
4519                    bss->ifname, (long long unsigned int) bss->wdev_id,
4520                    strerror(-ret));
4521
4522 nla_put_failure:
4523         nlmsg_free(msg);
4524 }
4525
4526
4527 static int nl80211_set_p2pdev(struct i802_bss *bss, int start)
4528 {
4529         struct wpa_driver_nl80211_data *drv = bss->drv;
4530         struct nl_msg *msg;
4531         int ret = -1;
4532
4533         msg = nlmsg_alloc();
4534         if (!msg)
4535                 return -1;
4536
4537         if (start)
4538                 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE);
4539         else
4540                 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE);
4541
4542         NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
4543
4544         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4545         msg = NULL;
4546
4547         wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s",
4548                    start ? "Start" : "Stop",
4549                    bss->ifname, (long long unsigned int) bss->wdev_id,
4550                    strerror(-ret));
4551
4552 nla_put_failure:
4553         nlmsg_free(msg);
4554         return ret;
4555 }
4556
4557
4558 static int i802_set_iface_flags(struct i802_bss *bss, int up)
4559 {
4560         enum nl80211_iftype nlmode;
4561
4562         nlmode = nl80211_get_ifmode(bss);
4563         if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
4564                 return linux_set_iface_flags(bss->drv->global->ioctl_sock,
4565                                              bss->ifname, up);
4566         }
4567
4568         /* P2P Device has start/stop which is equivalent */
4569         return nl80211_set_p2pdev(bss, up);
4570 }
4571
4572
4573 static int
4574 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
4575                                    const u8 *set_addr, int first)
4576 {
4577         struct i802_bss *bss = drv->first_bss;
4578         int send_rfkill_event = 0;
4579         enum nl80211_iftype nlmode;
4580
4581         drv->ifindex = if_nametoindex(bss->ifname);
4582         bss->ifindex = drv->ifindex;
4583         bss->wdev_id = drv->global->if_add_wdevid;
4584         bss->wdev_id_set = drv->global->if_add_wdevid_set;
4585
4586         bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex;
4587         bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set;
4588         drv->global->if_add_wdevid_set = 0;
4589
4590         if (wpa_driver_nl80211_capa(drv))
4591                 return -1;
4592
4593         wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
4594                    bss->ifname, drv->phyname);
4595
4596         if (set_addr &&
4597             (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) ||
4598              linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
4599                                 set_addr)))
4600                 return -1;
4601
4602         if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
4603                 drv->start_mode_ap = 1;
4604
4605         if (drv->hostapd)
4606                 nlmode = NL80211_IFTYPE_AP;
4607         else if (bss->if_dynamic)
4608                 nlmode = nl80211_get_ifmode(bss);
4609         else
4610                 nlmode = NL80211_IFTYPE_STATION;
4611
4612         if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) {
4613                 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode");
4614                 return -1;
4615         }
4616
4617         if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
4618                 int ret = nl80211_set_p2pdev(bss, 1);
4619                 if (ret < 0)
4620                         wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device");
4621                 nl80211_get_macaddr(bss);
4622                 return ret;
4623         }
4624
4625         if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
4626                 if (rfkill_is_blocked(drv->rfkill)) {
4627                         wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
4628                                    "interface '%s' due to rfkill",
4629                                    bss->ifname);
4630                         drv->if_disabled = 1;
4631                         send_rfkill_event = 1;
4632                 } else {
4633                         wpa_printf(MSG_ERROR, "nl80211: Could not set "
4634                                    "interface '%s' UP", bss->ifname);
4635                         return -1;
4636                 }
4637         }
4638
4639         if (!drv->hostapd)
4640                 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
4641                                        1, IF_OPER_DORMANT);
4642
4643         if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
4644                                bss->addr))
4645                 return -1;
4646
4647         if (send_rfkill_event) {
4648                 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
4649                                        drv, drv->ctx);
4650         }
4651
4652         return 0;
4653 }
4654
4655
4656 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
4657 {
4658         struct nl_msg *msg;
4659
4660         msg = nlmsg_alloc();
4661         if (!msg)
4662                 return -ENOMEM;
4663
4664         wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)",
4665                    drv->ifindex);
4666         nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
4667         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4668
4669         return send_and_recv_msgs(drv, msg, NULL, NULL);
4670  nla_put_failure:
4671         nlmsg_free(msg);
4672         return -ENOBUFS;
4673 }
4674
4675
4676 /**
4677  * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
4678  * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init()
4679  *
4680  * Shut down driver interface and processing of driver events. Free
4681  * private data buffer if one was allocated in wpa_driver_nl80211_init().
4682  */
4683 static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
4684 {
4685         struct wpa_driver_nl80211_data *drv = bss->drv;
4686
4687         bss->in_deinit = 1;
4688         if (drv->data_tx_status)
4689                 eloop_unregister_read_sock(drv->eapol_tx_sock);
4690         if (drv->eapol_tx_sock >= 0)
4691                 close(drv->eapol_tx_sock);
4692
4693         if (bss->nl_preq)
4694                 wpa_driver_nl80211_probe_req_report(bss, 0);
4695         if (bss->added_if_into_bridge) {
4696                 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
4697                                     bss->ifname) < 0)
4698                         wpa_printf(MSG_INFO, "nl80211: Failed to remove "
4699                                    "interface %s from bridge %s: %s",
4700                                    bss->ifname, bss->brname, strerror(errno));
4701         }
4702         if (bss->added_bridge) {
4703                 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
4704                         wpa_printf(MSG_INFO, "nl80211: Failed to remove "
4705                                    "bridge %s: %s",
4706                                    bss->brname, strerror(errno));
4707         }
4708
4709         nl80211_remove_monitor_interface(drv);
4710
4711         if (is_ap_interface(drv->nlmode))
4712                 wpa_driver_nl80211_del_beacon(drv);
4713
4714         if (drv->eapol_sock >= 0) {
4715                 eloop_unregister_read_sock(drv->eapol_sock);
4716                 close(drv->eapol_sock);
4717         }
4718
4719         if (drv->if_indices != drv->default_if_indices)
4720                 os_free(drv->if_indices);
4721
4722         if (drv->disabled_11b_rates)
4723                 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
4724
4725         netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
4726                                IF_OPER_UP);
4727         rfkill_deinit(drv->rfkill);
4728
4729         eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
4730
4731         if (!drv->start_iface_up)
4732                 (void) i802_set_iface_flags(bss, 0);
4733         if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) {
4734                 if (!drv->hostapd || !drv->start_mode_ap)
4735                         wpa_driver_nl80211_set_mode(bss,
4736                                                     NL80211_IFTYPE_STATION);
4737                 nl80211_mgmt_unsubscribe(bss, "deinit");
4738         } else {
4739                 nl80211_mgmt_unsubscribe(bss, "deinit");
4740                 nl80211_del_p2pdev(bss);
4741         }
4742         nl_cb_put(drv->nl_cb);
4743
4744         nl80211_destroy_bss(drv->first_bss);
4745
4746         os_free(drv->filter_ssids);
4747
4748         os_free(drv->auth_ie);
4749
4750         if (drv->in_interface_list)
4751                 dl_list_del(&drv->list);
4752
4753         os_free(drv->extended_capa);
4754         os_free(drv->extended_capa_mask);
4755         os_free(drv->first_bss);
4756         os_free(drv);
4757 }
4758
4759
4760 /**
4761  * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
4762  * @eloop_ctx: Driver private data
4763  * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
4764  *
4765  * This function can be used as registered timeout when starting a scan to
4766  * generate a scan completed event if the driver does not report this.
4767  */
4768 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
4769 {
4770         struct wpa_driver_nl80211_data *drv = eloop_ctx;
4771         if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
4772                 wpa_driver_nl80211_set_mode(drv->first_bss,
4773                                             drv->ap_scan_as_station);
4774                 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
4775         }
4776         wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
4777         wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
4778 }
4779
4780
4781 static struct nl_msg *
4782 nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd,
4783                     struct wpa_driver_scan_params *params, u64 *wdev_id)
4784 {
4785         struct nl_msg *msg;
4786         size_t i;
4787
4788         msg = nlmsg_alloc();
4789         if (!msg)
4790                 return NULL;
4791
4792         nl80211_cmd(drv, msg, 0, cmd);
4793
4794         if (!wdev_id)
4795                 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4796         else
4797                 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id);
4798
4799         if (params->num_ssids) {
4800                 struct nlattr *ssids;
4801
4802                 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
4803                 if (ssids == NULL)
4804                         goto fail;
4805                 for (i = 0; i < params->num_ssids; i++) {
4806                         wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
4807                                           params->ssids[i].ssid,
4808                                           params->ssids[i].ssid_len);
4809                         if (nla_put(msg, i + 1, params->ssids[i].ssid_len,
4810                                     params->ssids[i].ssid) < 0)
4811                                 goto fail;
4812                 }
4813                 nla_nest_end(msg, ssids);
4814         }
4815
4816         if (params->extra_ies) {
4817                 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
4818                             params->extra_ies, params->extra_ies_len);
4819                 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len,
4820                             params->extra_ies) < 0)
4821                         goto fail;
4822         }
4823
4824         if (params->freqs) {
4825                 struct nlattr *freqs;
4826                 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
4827                 if (freqs == NULL)
4828                         goto fail;
4829                 for (i = 0; params->freqs[i]; i++) {
4830                         wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
4831                                    "MHz", params->freqs[i]);
4832                         if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0)
4833                                 goto fail;
4834                 }
4835                 nla_nest_end(msg, freqs);
4836         }
4837
4838         os_free(drv->filter_ssids);
4839         drv->filter_ssids = params->filter_ssids;
4840         params->filter_ssids = NULL;
4841         drv->num_filter_ssids = params->num_filter_ssids;
4842
4843         if (params->only_new_results) {
4844                 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH");
4845                 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS,
4846                             NL80211_SCAN_FLAG_FLUSH);
4847         }
4848
4849         return msg;
4850
4851 fail:
4852 nla_put_failure:
4853         nlmsg_free(msg);
4854         return NULL;
4855 }
4856
4857
4858 /**
4859  * wpa_driver_nl80211_scan - Request the driver to initiate scan
4860  * @bss: Pointer to private driver data from wpa_driver_nl80211_init()
4861  * @params: Scan parameters
4862  * Returns: 0 on success, -1 on failure
4863  */
4864 static int wpa_driver_nl80211_scan(struct i802_bss *bss,
4865                                    struct wpa_driver_scan_params *params)
4866 {
4867         struct wpa_driver_nl80211_data *drv = bss->drv;
4868         int ret = -1, timeout;
4869         struct nl_msg *msg = NULL;
4870
4871         wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request");
4872         drv->scan_for_auth = 0;
4873
4874         msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params,
4875                                   bss->wdev_id_set ? &bss->wdev_id : NULL);
4876         if (!msg)
4877                 return -1;
4878
4879         if (params->p2p_probe) {
4880                 struct nlattr *rates;
4881
4882                 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates");
4883
4884                 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES);
4885                 if (rates == NULL)
4886                         goto nla_put_failure;
4887
4888                 /*
4889                  * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
4890                  * by masking out everything else apart from the OFDM rates 6,
4891                  * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
4892                  * rates are left enabled.
4893                  */
4894                 NLA_PUT(msg, NL80211_BAND_2GHZ, 8,
4895                         "\x0c\x12\x18\x24\x30\x48\x60\x6c");
4896                 nla_nest_end(msg, rates);
4897
4898                 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
4899         }
4900
4901         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4902         msg = NULL;
4903         if (ret) {
4904                 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
4905                            "(%s)", ret, strerror(-ret));
4906                 if (drv->hostapd && is_ap_interface(drv->nlmode)) {
4907                         enum nl80211_iftype old_mode = drv->nlmode;
4908
4909                         /*
4910                          * mac80211 does not allow scan requests in AP mode, so
4911                          * try to do this in station mode.
4912                          */
4913                         if (wpa_driver_nl80211_set_mode(
4914                                     bss, NL80211_IFTYPE_STATION))
4915                                 goto nla_put_failure;
4916
4917                         if (wpa_driver_nl80211_scan(bss, params)) {
4918                                 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
4919                                 goto nla_put_failure;
4920                         }
4921
4922                         /* Restore AP mode when processing scan results */
4923                         drv->ap_scan_as_station = old_mode;
4924                         ret = 0;
4925                 } else
4926                         goto nla_put_failure;
4927         }
4928
4929         drv->scan_state = SCAN_REQUESTED;
4930         /* Not all drivers generate "scan completed" wireless event, so try to
4931          * read results after a timeout. */
4932         timeout = 10;
4933         if (drv->scan_complete_events) {
4934                 /*
4935                  * The driver seems to deliver events to notify when scan is
4936                  * complete, so use longer timeout to avoid race conditions
4937                  * with scanning and following association request.
4938                  */
4939                 timeout = 30;
4940         }
4941         wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
4942                    "seconds", ret, timeout);
4943         eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
4944         eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
4945                                drv, drv->ctx);
4946
4947 nla_put_failure:
4948         nlmsg_free(msg);
4949         return ret;
4950 }
4951
4952
4953 /**
4954  * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
4955  * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
4956  * @params: Scan parameters
4957  * @interval: Interval between scan cycles in milliseconds
4958  * Returns: 0 on success, -1 on failure or if not supported
4959  */
4960 static int wpa_driver_nl80211_sched_scan(void *priv,
4961                                          struct wpa_driver_scan_params *params,
4962                                          u32 interval)
4963 {
4964         struct i802_bss *bss = priv;
4965         struct wpa_driver_nl80211_data *drv = bss->drv;
4966         int ret = -1;
4967         struct nl_msg *msg;
4968         size_t i;
4969
4970         wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request");
4971
4972 #ifdef ANDROID
4973         if (!drv->capa.sched_scan_supported)
4974                 return android_pno_start(bss, params);
4975 #endif /* ANDROID */
4976
4977         msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params,
4978                                   bss->wdev_id_set ? &bss->wdev_id : NULL);
4979         if (!msg)
4980                 goto nla_put_failure;
4981
4982         NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
4983
4984         if ((drv->num_filter_ssids &&
4985             (int) drv->num_filter_ssids <= drv->capa.max_match_sets) ||
4986             params->filter_rssi) {
4987                 struct nlattr *match_sets;
4988                 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
4989                 if (match_sets == NULL)
4990                         goto nla_put_failure;
4991
4992                 for (i = 0; i < drv->num_filter_ssids; i++) {
4993                         struct nlattr *match_set_ssid;
4994                         wpa_hexdump_ascii(MSG_MSGDUMP,
4995                                           "nl80211: Sched scan filter SSID",
4996                                           drv->filter_ssids[i].ssid,
4997                                           drv->filter_ssids[i].ssid_len);
4998
4999                         match_set_ssid = nla_nest_start(msg, i + 1);
5000                         if (match_set_ssid == NULL)
5001                                 goto nla_put_failure;
5002                         NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
5003                                 drv->filter_ssids[i].ssid_len,
5004                                 drv->filter_ssids[i].ssid);
5005                         if (params->filter_rssi)
5006                                 NLA_PUT_U32(msg,
5007                                             NL80211_SCHED_SCAN_MATCH_ATTR_RSSI,
5008                                             params->filter_rssi);
5009
5010                         nla_nest_end(msg, match_set_ssid);
5011                 }
5012
5013                 /*
5014                  * Due to backward compatibility code, newer kernels treat this
5015                  * matchset (with only an RSSI filter) as the default for all
5016                  * other matchsets, unless it's the only one, in which case the
5017                  * matchset will actually allow all SSIDs above the RSSI.
5018                  */
5019                 if (params->filter_rssi) {
5020                         struct nlattr *match_set_rssi;
5021                         match_set_rssi = nla_nest_start(msg, 0);
5022                         if (match_set_rssi == NULL)
5023                                 goto nla_put_failure;
5024                         NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI,
5025                                     params->filter_rssi);
5026                         wpa_printf(MSG_MSGDUMP,
5027                                    "nl80211: Sched scan RSSI filter %d dBm",
5028                                    params->filter_rssi);
5029                         nla_nest_end(msg, match_set_rssi);
5030                 }
5031
5032                 nla_nest_end(msg, match_sets);
5033         }
5034
5035         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5036
5037         /* TODO: if we get an error here, we should fall back to normal scan */
5038
5039         msg = NULL;
5040         if (ret) {
5041                 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
5042                            "ret=%d (%s)", ret, strerror(-ret));
5043                 goto nla_put_failure;
5044         }
5045
5046         wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
5047                    "scan interval %d msec", ret, interval);
5048
5049 nla_put_failure:
5050         nlmsg_free(msg);
5051         return ret;
5052 }
5053
5054
5055 /**
5056  * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
5057  * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
5058  * Returns: 0 on success, -1 on failure or if not supported
5059  */
5060 static int wpa_driver_nl80211_stop_sched_scan(void *priv)
5061 {
5062         struct i802_bss *bss = priv;
5063         struct wpa_driver_nl80211_data *drv = bss->drv;
5064         int ret = 0;
5065         struct nl_msg *msg;
5066
5067 #ifdef ANDROID
5068         if (!drv->capa.sched_scan_supported)
5069                 return android_pno_stop(bss);
5070 #endif /* ANDROID */
5071
5072         msg = nlmsg_alloc();
5073         if (!msg)
5074                 return -1;
5075
5076         nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
5077
5078         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5079
5080         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5081         msg = NULL;
5082         if (ret) {
5083                 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
5084                            "ret=%d (%s)", ret, strerror(-ret));
5085                 goto nla_put_failure;
5086         }
5087
5088         wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
5089
5090 nla_put_failure:
5091         nlmsg_free(msg);
5092         return ret;
5093 }
5094
5095
5096 static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
5097 {
5098         const u8 *end, *pos;
5099
5100         if (ies == NULL)
5101                 return NULL;
5102
5103         pos = ies;
5104         end = ies + ies_len;
5105
5106         while (pos + 1 < end) {
5107                 if (pos + 2 + pos[1] > end)
5108                         break;
5109                 if (pos[0] == ie)
5110                         return pos;
5111                 pos += 2 + pos[1];
5112         }
5113
5114         return NULL;
5115 }
5116
5117
5118 static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
5119                                  const u8 *ie, size_t ie_len)
5120 {
5121         const u8 *ssid;
5122         size_t i;
5123
5124         if (drv->filter_ssids == NULL)
5125                 return 0;
5126
5127         ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
5128         if (ssid == NULL)
5129                 return 1;
5130
5131         for (i = 0; i < drv->num_filter_ssids; i++) {
5132                 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
5133                     os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
5134                     0)
5135                         return 0;
5136         }
5137
5138         return 1;
5139 }
5140
5141
5142 static int bss_info_handler(struct nl_msg *msg, void *arg)
5143 {
5144         struct nlattr *tb[NL80211_ATTR_MAX + 1];
5145         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5146         struct nlattr *bss[NL80211_BSS_MAX + 1];
5147         static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
5148                 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
5149                 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
5150                 [NL80211_BSS_TSF] = { .type = NLA_U64 },
5151                 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
5152                 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
5153                 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
5154                 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
5155                 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
5156                 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
5157                 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
5158                 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
5159         };
5160         struct nl80211_bss_info_arg *_arg = arg;
5161         struct wpa_scan_results *res = _arg->res;
5162         struct wpa_scan_res **tmp;
5163         struct wpa_scan_res *r;
5164         const u8 *ie, *beacon_ie;
5165         size_t ie_len, beacon_ie_len;
5166         u8 *pos;
5167         size_t i;
5168
5169         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5170                   genlmsg_attrlen(gnlh, 0), NULL);
5171         if (!tb[NL80211_ATTR_BSS])
5172                 return NL_SKIP;
5173         if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
5174                              bss_policy))
5175                 return NL_SKIP;
5176         if (bss[NL80211_BSS_STATUS]) {
5177                 enum nl80211_bss_status status;
5178                 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
5179                 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
5180                     bss[NL80211_BSS_FREQUENCY]) {
5181                         _arg->assoc_freq =
5182                                 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
5183                         wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
5184                                    _arg->assoc_freq);
5185                 }
5186                 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
5187                     bss[NL80211_BSS_BSSID]) {
5188                         os_memcpy(_arg->assoc_bssid,
5189                                   nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
5190                         wpa_printf(MSG_DEBUG, "nl80211: Associated with "
5191                                    MACSTR, MAC2STR(_arg->assoc_bssid));
5192                 }
5193         }
5194         if (!res)
5195                 return NL_SKIP;
5196         if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
5197                 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
5198                 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
5199         } else {
5200                 ie = NULL;
5201                 ie_len = 0;
5202         }
5203         if (bss[NL80211_BSS_BEACON_IES]) {
5204                 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
5205                 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
5206         } else {
5207                 beacon_ie = NULL;
5208                 beacon_ie_len = 0;
5209         }
5210
5211         if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
5212                                   ie ? ie_len : beacon_ie_len))
5213                 return NL_SKIP;
5214
5215         r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
5216         if (r == NULL)
5217                 return NL_SKIP;
5218         if (bss[NL80211_BSS_BSSID])
5219                 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
5220                           ETH_ALEN);
5221         if (bss[NL80211_BSS_FREQUENCY])
5222                 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
5223         if (bss[NL80211_BSS_BEACON_INTERVAL])
5224                 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
5225         if (bss[NL80211_BSS_CAPABILITY])
5226                 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
5227         r->flags |= WPA_SCAN_NOISE_INVALID;
5228         if (bss[NL80211_BSS_SIGNAL_MBM]) {
5229                 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
5230                 r->level /= 100; /* mBm to dBm */
5231                 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
5232         } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
5233                 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
5234                 r->flags |= WPA_SCAN_QUAL_INVALID;
5235         } else
5236                 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
5237         if (bss[NL80211_BSS_TSF])
5238                 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
5239         if (bss[NL80211_BSS_SEEN_MS_AGO])
5240                 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
5241         r->ie_len = ie_len;
5242         pos = (u8 *) (r + 1);
5243         if (ie) {
5244                 os_memcpy(pos, ie, ie_len);
5245                 pos += ie_len;
5246         }
5247         r->beacon_ie_len = beacon_ie_len;
5248         if (beacon_ie)
5249                 os_memcpy(pos, beacon_ie, beacon_ie_len);
5250
5251         if (bss[NL80211_BSS_STATUS]) {
5252                 enum nl80211_bss_status status;
5253                 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
5254                 switch (status) {
5255                 case NL80211_BSS_STATUS_AUTHENTICATED:
5256                         r->flags |= WPA_SCAN_AUTHENTICATED;
5257                         break;
5258                 case NL80211_BSS_STATUS_ASSOCIATED:
5259                         r->flags |= WPA_SCAN_ASSOCIATED;
5260                         break;
5261                 default:
5262                         break;
5263                 }
5264         }
5265
5266         /*
5267          * cfg80211 maintains separate BSS table entries for APs if the same
5268          * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
5269          * not use frequency as a separate key in the BSS table, so filter out
5270          * duplicated entries. Prefer associated BSS entry in such a case in
5271          * order to get the correct frequency into the BSS table. Similarly,
5272          * prefer newer entries over older.
5273          */
5274         for (i = 0; i < res->num; i++) {
5275                 const u8 *s1, *s2;
5276                 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
5277                         continue;
5278
5279                 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
5280                                     res->res[i]->ie_len, WLAN_EID_SSID);
5281                 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
5282                 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
5283                     os_memcmp(s1, s2, 2 + s1[1]) != 0)
5284                         continue;
5285
5286                 /* Same BSSID,SSID was already included in scan results */
5287                 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
5288                            "for " MACSTR, MAC2STR(r->bssid));
5289
5290                 if (((r->flags & WPA_SCAN_ASSOCIATED) &&
5291                      !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) ||
5292                     r->age < res->res[i]->age) {
5293                         os_free(res->res[i]);
5294                         res->res[i] = r;
5295                 } else
5296                         os_free(r);
5297                 return NL_SKIP;
5298         }
5299
5300         tmp = os_realloc_array(res->res, res->num + 1,
5301                                sizeof(struct wpa_scan_res *));
5302         if (tmp == NULL) {
5303                 os_free(r);
5304                 return NL_SKIP;
5305         }
5306         tmp[res->num++] = r;
5307         res->res = tmp;
5308
5309         return NL_SKIP;
5310 }
5311
5312
5313 static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
5314                                  const u8 *addr)
5315 {
5316         if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
5317                 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
5318                            "mismatch (" MACSTR ")", MAC2STR(addr));
5319                 wpa_driver_nl80211_mlme(drv, addr,
5320                                         NL80211_CMD_DEAUTHENTICATE,
5321                                         WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
5322         }
5323 }
5324
5325
5326 static void wpa_driver_nl80211_check_bss_status(
5327         struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
5328 {
5329         size_t i;
5330
5331         for (i = 0; i < res->num; i++) {
5332                 struct wpa_scan_res *r = res->res[i];
5333                 if (r->flags & WPA_SCAN_AUTHENTICATED) {
5334                         wpa_printf(MSG_DEBUG, "nl80211: Scan results "
5335                                    "indicates BSS status with " MACSTR
5336                                    " as authenticated",
5337                                    MAC2STR(r->bssid));
5338                         if (is_sta_interface(drv->nlmode) &&
5339                             os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
5340                             os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
5341                             0) {
5342                                 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
5343                                            " in local state (auth=" MACSTR
5344                                            " assoc=" MACSTR ")",
5345                                            MAC2STR(drv->auth_bssid),
5346                                            MAC2STR(drv->bssid));
5347                                 clear_state_mismatch(drv, r->bssid);
5348                         }
5349                 }
5350
5351                 if (r->flags & WPA_SCAN_ASSOCIATED) {
5352                         wpa_printf(MSG_DEBUG, "nl80211: Scan results "
5353                                    "indicate BSS status with " MACSTR
5354                                    " as associated",
5355                                    MAC2STR(r->bssid));
5356                         if (is_sta_interface(drv->nlmode) &&
5357                             !drv->associated) {
5358                                 wpa_printf(MSG_DEBUG, "nl80211: Local state "
5359                                            "(not associated) does not match "
5360                                            "with BSS state");
5361                                 clear_state_mismatch(drv, r->bssid);
5362                         } else if (is_sta_interface(drv->nlmode) &&
5363                                    os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
5364                                    0) {
5365                                 wpa_printf(MSG_DEBUG, "nl80211: Local state "
5366                                            "(associated with " MACSTR ") does "
5367                                            "not match with BSS state",
5368                                            MAC2STR(drv->bssid));
5369                                 clear_state_mismatch(drv, r->bssid);
5370                                 clear_state_mismatch(drv, drv->bssid);
5371                         }
5372                 }
5373         }
5374 }
5375
5376
5377 static struct wpa_scan_results *
5378 nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
5379 {
5380         struct nl_msg *msg;
5381         struct wpa_scan_results *res;
5382         int ret;
5383         struct nl80211_bss_info_arg arg;
5384
5385         res = os_zalloc(sizeof(*res));
5386         if (res == NULL)
5387                 return NULL;
5388         msg = nlmsg_alloc();
5389         if (!msg)
5390                 goto nla_put_failure;
5391
5392         nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
5393         if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
5394                 goto nla_put_failure;
5395
5396         arg.drv = drv;
5397         arg.res = res;
5398         ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
5399         msg = NULL;
5400         if (ret == 0) {
5401                 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
5402                            "BSSes)", (unsigned long) res->num);
5403                 nl80211_get_noise_for_scan_results(drv, res);
5404                 return res;
5405         }
5406         wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
5407                    "(%s)", ret, strerror(-ret));
5408 nla_put_failure:
5409         nlmsg_free(msg);
5410         wpa_scan_results_free(res);
5411         return NULL;
5412 }
5413
5414
5415 /**
5416  * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
5417  * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
5418  * Returns: Scan results on success, -1 on failure
5419  */
5420 static struct wpa_scan_results *
5421 wpa_driver_nl80211_get_scan_results(void *priv)
5422 {
5423         struct i802_bss *bss = priv;
5424         struct wpa_driver_nl80211_data *drv = bss->drv;
5425         struct wpa_scan_results *res;
5426
5427         res = nl80211_get_scan_results(drv);
5428         if (res)
5429                 wpa_driver_nl80211_check_bss_status(drv, res);
5430         return res;
5431 }
5432
5433
5434 static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
5435 {
5436         struct wpa_scan_results *res;
5437         size_t i;
5438
5439         res = nl80211_get_scan_results(drv);
5440         if (res == NULL) {
5441                 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
5442                 return;
5443         }
5444
5445         wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
5446         for (i = 0; i < res->num; i++) {
5447                 struct wpa_scan_res *r = res->res[i];
5448                 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
5449                            (int) i, (int) res->num, MAC2STR(r->bssid),
5450                            r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
5451                            r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
5452         }
5453
5454         wpa_scan_results_free(res);
5455 }
5456
5457
5458 static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len)
5459 {
5460         switch (alg) {
5461         case WPA_ALG_WEP:
5462                 if (key_len == 5)
5463                         return WLAN_CIPHER_SUITE_WEP40;
5464                 return WLAN_CIPHER_SUITE_WEP104;
5465         case WPA_ALG_TKIP:
5466                 return WLAN_CIPHER_SUITE_TKIP;
5467         case WPA_ALG_CCMP:
5468                 return WLAN_CIPHER_SUITE_CCMP;
5469         case WPA_ALG_GCMP:
5470                 return WLAN_CIPHER_SUITE_GCMP;
5471         case WPA_ALG_CCMP_256:
5472                 return WLAN_CIPHER_SUITE_CCMP_256;
5473         case WPA_ALG_GCMP_256:
5474                 return WLAN_CIPHER_SUITE_GCMP_256;
5475         case WPA_ALG_IGTK:
5476                 return WLAN_CIPHER_SUITE_AES_CMAC;
5477         case WPA_ALG_BIP_GMAC_128:
5478                 return WLAN_CIPHER_SUITE_BIP_GMAC_128;
5479         case WPA_ALG_BIP_GMAC_256:
5480                 return WLAN_CIPHER_SUITE_BIP_GMAC_256;
5481         case WPA_ALG_BIP_CMAC_256:
5482                 return WLAN_CIPHER_SUITE_BIP_CMAC_256;
5483         case WPA_ALG_SMS4:
5484                 return WLAN_CIPHER_SUITE_SMS4;
5485         case WPA_ALG_KRK:
5486                 return WLAN_CIPHER_SUITE_KRK;
5487         case WPA_ALG_NONE:
5488         case WPA_ALG_PMK:
5489                 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d",
5490                            alg);
5491                 return 0;
5492         }
5493
5494         wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d",
5495                    alg);
5496         return 0;
5497 }
5498
5499
5500 static u32 wpa_cipher_to_cipher_suite(unsigned int cipher)
5501 {
5502         switch (cipher) {
5503         case WPA_CIPHER_CCMP_256:
5504                 return WLAN_CIPHER_SUITE_CCMP_256;
5505         case WPA_CIPHER_GCMP_256:
5506                 return WLAN_CIPHER_SUITE_GCMP_256;
5507         case WPA_CIPHER_CCMP:
5508                 return WLAN_CIPHER_SUITE_CCMP;
5509         case WPA_CIPHER_GCMP:
5510                 return WLAN_CIPHER_SUITE_GCMP;
5511         case WPA_CIPHER_TKIP:
5512                 return WLAN_CIPHER_SUITE_TKIP;
5513         case WPA_CIPHER_WEP104:
5514                 return WLAN_CIPHER_SUITE_WEP104;
5515         case WPA_CIPHER_WEP40:
5516                 return WLAN_CIPHER_SUITE_WEP40;
5517         case WPA_CIPHER_GTK_NOT_USED:
5518                 return WLAN_CIPHER_SUITE_NO_GROUP_ADDR;
5519         }
5520
5521         return 0;
5522 }
5523
5524
5525 static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[],
5526                                        int max_suites)
5527 {
5528         int num_suites = 0;
5529
5530         if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256)
5531                 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256;
5532         if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256)
5533                 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256;
5534         if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP)
5535                 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
5536         if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP)
5537                 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP;
5538         if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP)
5539                 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
5540         if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104)
5541                 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
5542         if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40)
5543                 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
5544
5545         return num_suites;
5546 }
5547
5548
5549 static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
5550                                       enum wpa_alg alg, const u8 *addr,
5551                                       int key_idx, int set_tx,
5552                                       const u8 *seq, size_t seq_len,
5553                                       const u8 *key, size_t key_len)
5554 {
5555         struct wpa_driver_nl80211_data *drv = bss->drv;
5556         int ifindex;
5557         struct nl_msg *msg;
5558         int ret;
5559         int tdls = 0;
5560
5561         /* Ignore for P2P Device */
5562         if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
5563                 return 0;
5564
5565         ifindex = if_nametoindex(ifname);
5566         wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d "
5567                    "set_tx=%d seq_len=%lu key_len=%lu",
5568                    __func__, ifindex, ifname, alg, addr, key_idx, set_tx,
5569                    (unsigned long) seq_len, (unsigned long) key_len);
5570 #ifdef CONFIG_TDLS
5571         if (key_idx == -1) {
5572                 key_idx = 0;
5573                 tdls = 1;
5574         }
5575 #endif /* CONFIG_TDLS */
5576
5577         msg = nlmsg_alloc();
5578         if (!msg)
5579                 return -ENOMEM;
5580
5581         if (alg == WPA_ALG_NONE) {
5582                 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
5583         } else {
5584                 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
5585                 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
5586                 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5587                             wpa_alg_to_cipher_suite(alg, key_len));
5588         }
5589
5590         if (seq && seq_len)
5591                 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
5592
5593         if (addr && !is_broadcast_ether_addr(addr)) {
5594                 wpa_printf(MSG_DEBUG, "   addr=" MACSTR, MAC2STR(addr));
5595                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5596
5597                 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
5598                         wpa_printf(MSG_DEBUG, "   RSN IBSS RX GTK");
5599                         NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
5600                                     NL80211_KEYTYPE_GROUP);
5601                 }
5602         } else if (addr && is_broadcast_ether_addr(addr)) {
5603                 struct nlattr *types;
5604
5605                 wpa_printf(MSG_DEBUG, "   broadcast key");
5606
5607                 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
5608                 if (!types)
5609                         goto nla_put_failure;
5610                 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
5611                 nla_nest_end(msg, types);
5612         }
5613         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
5614         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5615
5616         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5617         if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
5618                 ret = 0;
5619         if (ret)
5620                 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
5621                            ret, strerror(-ret));
5622
5623         /*
5624          * If we failed or don't need to set the default TX key (below),
5625          * we're done here.
5626          */
5627         if (ret || !set_tx || alg == WPA_ALG_NONE || tdls)
5628                 return ret;
5629         if (is_ap_interface(drv->nlmode) && addr &&
5630             !is_broadcast_ether_addr(addr))
5631                 return ret;
5632
5633         msg = nlmsg_alloc();
5634         if (!msg)
5635                 return -ENOMEM;
5636
5637         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
5638         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
5639         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5640         if (alg == WPA_ALG_IGTK)
5641                 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
5642         else
5643                 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
5644         if (addr && is_broadcast_ether_addr(addr)) {
5645                 struct nlattr *types;
5646
5647                 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
5648                 if (!types)
5649                         goto nla_put_failure;
5650                 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
5651                 nla_nest_end(msg, types);
5652         } else if (addr) {
5653                 struct nlattr *types;
5654
5655                 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
5656                 if (!types)
5657                         goto nla_put_failure;
5658                 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST);
5659                 nla_nest_end(msg, types);
5660         }
5661
5662         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5663         if (ret == -ENOENT)
5664                 ret = 0;
5665         if (ret)
5666                 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
5667                            "err=%d %s)", ret, strerror(-ret));
5668         return ret;
5669
5670 nla_put_failure:
5671         nlmsg_free(msg);
5672         return -ENOBUFS;
5673 }
5674
5675
5676 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
5677                       int key_idx, int defkey,
5678                       const u8 *seq, size_t seq_len,
5679                       const u8 *key, size_t key_len)
5680 {
5681         struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
5682         if (!key_attr)
5683                 return -1;
5684
5685         if (defkey && alg == WPA_ALG_IGTK)
5686                 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
5687         else if (defkey)
5688                 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
5689
5690         NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
5691
5692         NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5693                     wpa_alg_to_cipher_suite(alg, key_len));
5694
5695         if (seq && seq_len)
5696                 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
5697
5698         NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
5699
5700         nla_nest_end(msg, key_attr);
5701
5702         return 0;
5703  nla_put_failure:
5704         return -1;
5705 }
5706
5707
5708 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
5709                                  struct nl_msg *msg)
5710 {
5711         int i, privacy = 0;
5712         struct nlattr *nl_keys, *nl_key;
5713
5714         for (i = 0; i < 4; i++) {
5715                 if (!params->wep_key[i])
5716                         continue;
5717                 privacy = 1;
5718                 break;
5719         }
5720         if (params->wps == WPS_MODE_PRIVACY)
5721                 privacy = 1;
5722         if (params->pairwise_suite &&
5723             params->pairwise_suite != WPA_CIPHER_NONE)
5724                 privacy = 1;
5725
5726         if (!privacy)
5727                 return 0;
5728
5729         NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
5730
5731         nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
5732         if (!nl_keys)
5733                 goto nla_put_failure;
5734
5735         for (i = 0; i < 4; i++) {
5736                 if (!params->wep_key[i])
5737                         continue;
5738
5739                 nl_key = nla_nest_start(msg, i);
5740                 if (!nl_key)
5741                         goto nla_put_failure;
5742
5743                 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
5744                         params->wep_key[i]);
5745                 if (params->wep_key_len[i] == 5)
5746                         NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5747                                     WLAN_CIPHER_SUITE_WEP40);
5748                 else
5749                         NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5750                                     WLAN_CIPHER_SUITE_WEP104);
5751
5752                 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
5753
5754                 if (i == params->wep_tx_keyidx)
5755                         NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
5756
5757                 nla_nest_end(msg, nl_key);
5758         }
5759         nla_nest_end(msg, nl_keys);
5760
5761         return 0;
5762
5763 nla_put_failure:
5764         return -ENOBUFS;
5765 }
5766
5767
5768 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
5769                                    const u8 *addr, int cmd, u16 reason_code,
5770                                    int local_state_change)
5771 {
5772         int ret = -1;
5773         struct nl_msg *msg;
5774
5775         msg = nlmsg_alloc();
5776         if (!msg)
5777                 return -1;
5778
5779         nl80211_cmd(drv, msg, 0, cmd);
5780
5781         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5782         NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
5783         if (addr)
5784                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5785         if (local_state_change)
5786                 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
5787
5788         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5789         msg = NULL;
5790         if (ret) {
5791                 wpa_dbg(drv->ctx, MSG_DEBUG,
5792                         "nl80211: MLME command failed: reason=%u ret=%d (%s)",
5793                         reason_code, ret, strerror(-ret));
5794                 goto nla_put_failure;
5795         }
5796         ret = 0;
5797
5798 nla_put_failure:
5799         nlmsg_free(msg);
5800         return ret;
5801 }
5802
5803
5804 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
5805                                          int reason_code)
5806 {
5807         int ret;
5808
5809         wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
5810         nl80211_mark_disconnected(drv);
5811         /* Disconnect command doesn't need BSSID - it uses cached value */
5812         ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
5813                                       reason_code, 0);
5814         /*
5815          * For locally generated disconnect, supplicant already generates a
5816          * DEAUTH event, so ignore the event from NL80211.
5817          */
5818         drv->ignore_next_local_disconnect = ret == 0;
5819
5820         return ret;
5821 }
5822
5823
5824 static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss,
5825                                              const u8 *addr, int reason_code)
5826 {
5827         struct wpa_driver_nl80211_data *drv = bss->drv;
5828         if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
5829                 return wpa_driver_nl80211_disconnect(drv, reason_code);
5830         wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
5831                    __func__, MAC2STR(addr), reason_code);
5832         nl80211_mark_disconnected(drv);
5833         if (drv->nlmode == NL80211_IFTYPE_ADHOC)
5834                 return nl80211_leave_ibss(drv);
5835         return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
5836                                        reason_code, 0);
5837 }
5838
5839
5840 static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
5841                                      struct wpa_driver_auth_params *params)
5842 {
5843         int i;
5844
5845         drv->auth_freq = params->freq;
5846         drv->auth_alg = params->auth_alg;
5847         drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
5848         drv->auth_local_state_change = params->local_state_change;
5849         drv->auth_p2p = params->p2p;
5850
5851         if (params->bssid)
5852                 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
5853         else
5854                 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
5855
5856         if (params->ssid) {
5857                 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
5858                 drv->auth_ssid_len = params->ssid_len;
5859         } else
5860                 drv->auth_ssid_len = 0;
5861
5862
5863         os_free(drv->auth_ie);
5864         drv->auth_ie = NULL;
5865         drv->auth_ie_len = 0;
5866         if (params->ie) {
5867                 drv->auth_ie = os_malloc(params->ie_len);
5868                 if (drv->auth_ie) {
5869                         os_memcpy(drv->auth_ie, params->ie, params->ie_len);
5870                         drv->auth_ie_len = params->ie_len;
5871                 }
5872         }
5873
5874         for (i = 0; i < 4; i++) {
5875                 if (params->wep_key[i] && params->wep_key_len[i] &&
5876                     params->wep_key_len[i] <= 16) {
5877                         os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
5878                                   params->wep_key_len[i]);
5879                         drv->auth_wep_key_len[i] = params->wep_key_len[i];
5880                 } else
5881                         drv->auth_wep_key_len[i] = 0;
5882         }
5883 }
5884
5885
5886 static int wpa_driver_nl80211_authenticate(
5887         struct i802_bss *bss, struct wpa_driver_auth_params *params)
5888 {
5889         struct wpa_driver_nl80211_data *drv = bss->drv;
5890         int ret = -1, i;
5891         struct nl_msg *msg;
5892         enum nl80211_auth_type type;
5893         enum nl80211_iftype nlmode;
5894         int count = 0;
5895         int is_retry;
5896
5897         is_retry = drv->retry_auth;
5898         drv->retry_auth = 0;
5899
5900         nl80211_mark_disconnected(drv);
5901         os_memset(drv->auth_bssid, 0, ETH_ALEN);
5902         if (params->bssid)
5903                 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
5904         else
5905                 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
5906         /* FIX: IBSS mode */
5907         nlmode = params->p2p ?
5908                 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5909         if (drv->nlmode != nlmode &&
5910             wpa_driver_nl80211_set_mode(bss, nlmode) < 0)
5911                 return -1;
5912
5913 retry:
5914         msg = nlmsg_alloc();
5915         if (!msg)
5916                 return -1;
5917
5918         wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
5919                    drv->ifindex);
5920
5921         nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
5922
5923         for (i = 0; i < 4; i++) {
5924                 if (!params->wep_key[i])
5925                         continue;
5926                 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP,
5927                                            NULL, i,
5928                                            i == params->wep_tx_keyidx, NULL, 0,
5929                                            params->wep_key[i],
5930                                            params->wep_key_len[i]);
5931                 if (params->wep_tx_keyidx != i)
5932                         continue;
5933                 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
5934                                params->wep_key[i], params->wep_key_len[i])) {
5935                         nlmsg_free(msg);
5936                         return -1;
5937                 }
5938         }
5939
5940         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5941         if (params->bssid) {
5942                 wpa_printf(MSG_DEBUG, "  * bssid=" MACSTR,
5943                            MAC2STR(params->bssid));
5944                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5945         }
5946         if (params->freq) {
5947                 wpa_printf(MSG_DEBUG, "  * freq=%d", params->freq);
5948                 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5949         }
5950         if (params->ssid) {
5951                 wpa_hexdump_ascii(MSG_DEBUG, "  * SSID",
5952                                   params->ssid, params->ssid_len);
5953                 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5954                         params->ssid);
5955         }
5956         wpa_hexdump(MSG_DEBUG, "  * IEs", params->ie, params->ie_len);
5957         if (params->ie)
5958                 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
5959         if (params->sae_data) {
5960                 wpa_hexdump(MSG_DEBUG, "  * SAE data", params->sae_data,
5961                             params->sae_data_len);
5962                 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len,
5963                         params->sae_data);
5964         }
5965         if (params->auth_alg & WPA_AUTH_ALG_OPEN)
5966                 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
5967         else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
5968                 type = NL80211_AUTHTYPE_SHARED_KEY;
5969         else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
5970                 type = NL80211_AUTHTYPE_NETWORK_EAP;
5971         else if (params->auth_alg & WPA_AUTH_ALG_FT)
5972                 type = NL80211_AUTHTYPE_FT;
5973         else if (params->auth_alg & WPA_AUTH_ALG_SAE)
5974                 type = NL80211_AUTHTYPE_SAE;
5975         else
5976                 goto nla_put_failure;
5977         wpa_printf(MSG_DEBUG, "  * Auth Type %d", type);
5978         NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
5979         if (params->local_state_change) {
5980                 wpa_printf(MSG_DEBUG, "  * Local state change only");
5981                 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
5982         }
5983
5984         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5985         msg = NULL;
5986         if (ret) {
5987                 wpa_dbg(drv->ctx, MSG_DEBUG,
5988                         "nl80211: MLME command failed (auth): ret=%d (%s)",
5989                         ret, strerror(-ret));
5990                 count++;
5991                 if (ret == -EALREADY && count == 1 && params->bssid &&
5992                     !params->local_state_change) {
5993                         /*
5994                          * mac80211 does not currently accept new
5995                          * authentication if we are already authenticated. As a
5996                          * workaround, force deauthentication and try again.
5997                          */
5998                         wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
5999                                    "after forced deauthentication");
6000                         wpa_driver_nl80211_deauthenticate(
6001                                 bss, params->bssid,
6002                                 WLAN_REASON_PREV_AUTH_NOT_VALID);
6003                         nlmsg_free(msg);
6004                         goto retry;
6005                 }
6006
6007                 if (ret == -ENOENT && params->freq && !is_retry) {
6008                         /*
6009                          * cfg80211 has likely expired the BSS entry even
6010                          * though it was previously available in our internal
6011                          * BSS table. To recover quickly, start a single
6012                          * channel scan on the specified channel.
6013                          */
6014                         struct wpa_driver_scan_params scan;
6015                         int freqs[2];
6016
6017                         os_memset(&scan, 0, sizeof(scan));
6018                         scan.num_ssids = 1;
6019                         if (params->ssid) {
6020                                 scan.ssids[0].ssid = params->ssid;
6021                                 scan.ssids[0].ssid_len = params->ssid_len;
6022                         }
6023                         freqs[0] = params->freq;
6024                         freqs[1] = 0;
6025                         scan.freqs = freqs;
6026                         wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
6027                                    "channel scan to refresh cfg80211 BSS "
6028                                    "entry");
6029                         ret = wpa_driver_nl80211_scan(bss, &scan);
6030                         if (ret == 0) {
6031                                 nl80211_copy_auth_params(drv, params);
6032                                 drv->scan_for_auth = 1;
6033                         }
6034                 } else if (is_retry) {
6035                         /*
6036                          * Need to indicate this with an event since the return
6037                          * value from the retry is not delivered to core code.
6038                          */
6039                         union wpa_event_data event;
6040                         wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
6041                                    "failed");
6042                         os_memset(&event, 0, sizeof(event));
6043                         os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
6044                                   ETH_ALEN);
6045                         wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
6046                                              &event);
6047                 }
6048
6049                 goto nla_put_failure;
6050         }
6051         ret = 0;
6052         wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
6053                    "successfully");
6054
6055 nla_put_failure:
6056         nlmsg_free(msg);
6057         return ret;
6058 }
6059
6060
6061 static int wpa_driver_nl80211_authenticate_retry(
6062         struct wpa_driver_nl80211_data *drv)
6063 {
6064         struct wpa_driver_auth_params params;
6065         struct i802_bss *bss = drv->first_bss;
6066         int i;
6067
6068         wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
6069
6070         os_memset(&params, 0, sizeof(params));
6071         params.freq = drv->auth_freq;
6072         params.auth_alg = drv->auth_alg;
6073         params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
6074         params.local_state_change = drv->auth_local_state_change;
6075         params.p2p = drv->auth_p2p;
6076
6077         if (!is_zero_ether_addr(drv->auth_bssid_))
6078                 params.bssid = drv->auth_bssid_;
6079
6080         if (drv->auth_ssid_len) {
6081                 params.ssid = drv->auth_ssid;
6082                 params.ssid_len = drv->auth_ssid_len;
6083         }
6084
6085         params.ie = drv->auth_ie;
6086         params.ie_len = drv->auth_ie_len;
6087
6088         for (i = 0; i < 4; i++) {
6089                 if (drv->auth_wep_key_len[i]) {
6090                         params.wep_key[i] = drv->auth_wep_key[i];
6091                         params.wep_key_len[i] = drv->auth_wep_key_len[i];
6092                 }
6093         }
6094
6095         drv->retry_auth = 1;
6096         return wpa_driver_nl80211_authenticate(bss, &params);
6097 }
6098
6099
6100 struct phy_info_arg {
6101         u16 *num_modes;
6102         struct hostapd_hw_modes *modes;
6103         int last_mode, last_chan_idx;
6104 };
6105
6106 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
6107                              struct nlattr *ampdu_factor,
6108                              struct nlattr *ampdu_density,
6109                              struct nlattr *mcs_set)
6110 {
6111         if (capa)
6112                 mode->ht_capab = nla_get_u16(capa);
6113
6114         if (ampdu_factor)
6115                 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
6116
6117         if (ampdu_density)
6118                 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
6119
6120         if (mcs_set && nla_len(mcs_set) >= 16) {
6121                 u8 *mcs;
6122                 mcs = nla_data(mcs_set);
6123                 os_memcpy(mode->mcs_set, mcs, 16);
6124         }
6125 }
6126
6127
6128 static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
6129                               struct nlattr *capa,
6130                               struct nlattr *mcs_set)
6131 {
6132         if (capa)
6133                 mode->vht_capab = nla_get_u32(capa);
6134
6135         if (mcs_set && nla_len(mcs_set) >= 8) {
6136                 u8 *mcs;
6137                 mcs = nla_data(mcs_set);
6138                 os_memcpy(mode->vht_mcs_set, mcs, 8);
6139         }
6140 }
6141
6142
6143 static void phy_info_freq(struct hostapd_hw_modes *mode,
6144                           struct hostapd_channel_data *chan,
6145                           struct nlattr *tb_freq[])
6146 {
6147         u8 channel;
6148         chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
6149         chan->flag = 0;
6150         if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
6151                 chan->chan = channel;
6152
6153         if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
6154                 chan->flag |= HOSTAPD_CHAN_DISABLED;
6155         if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
6156                 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS;
6157         if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
6158                 chan->flag |= HOSTAPD_CHAN_RADAR;
6159
6160         if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
6161                 enum nl80211_dfs_state state =
6162                         nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
6163
6164                 switch (state) {
6165                 case NL80211_DFS_USABLE:
6166                         chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
6167                         break;
6168                 case NL80211_DFS_AVAILABLE:
6169                         chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
6170                         break;
6171                 case NL80211_DFS_UNAVAILABLE:
6172                         chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
6173                         break;
6174                 }
6175         }
6176 }
6177
6178
6179 static int phy_info_freqs(struct phy_info_arg *phy_info,
6180                           struct hostapd_hw_modes *mode, struct nlattr *tb)
6181 {
6182         static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
6183                 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
6184                 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
6185                 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
6186                 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
6187                 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
6188                 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
6189         };
6190         int new_channels = 0;
6191         struct hostapd_channel_data *channel;
6192         struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
6193         struct nlattr *nl_freq;
6194         int rem_freq, idx;
6195
6196         if (tb == NULL)
6197                 return NL_OK;
6198
6199         nla_for_each_nested(nl_freq, tb, rem_freq) {
6200                 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
6201                           nla_data(nl_freq), nla_len(nl_freq), freq_policy);
6202                 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
6203                         continue;
6204                 new_channels++;
6205         }
6206
6207         channel = os_realloc_array(mode->channels,
6208                                    mode->num_channels + new_channels,
6209                                    sizeof(struct hostapd_channel_data));
6210         if (!channel)
6211                 return NL_SKIP;
6212
6213         mode->channels = channel;
6214         mode->num_channels += new_channels;
6215
6216         idx = phy_info->last_chan_idx;
6217
6218         nla_for_each_nested(nl_freq, tb, rem_freq) {
6219                 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
6220                           nla_data(nl_freq), nla_len(nl_freq), freq_policy);
6221                 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
6222                         continue;
6223                 phy_info_freq(mode, &mode->channels[idx], tb_freq);
6224                 idx++;
6225         }
6226         phy_info->last_chan_idx = idx;
6227
6228         return NL_OK;
6229 }
6230
6231
6232 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
6233 {
6234         static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
6235                 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
6236                 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
6237                 { .type = NLA_FLAG },
6238         };
6239         struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
6240         struct nlattr *nl_rate;
6241         int rem_rate, idx;
6242
6243         if (tb == NULL)
6244                 return NL_OK;
6245
6246         nla_for_each_nested(nl_rate, tb, rem_rate) {
6247                 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
6248                           nla_data(nl_rate), nla_len(nl_rate),
6249                           rate_policy);
6250                 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
6251                         continue;
6252                 mode->num_rates++;
6253         }
6254
6255         mode->rates = os_calloc(mode->num_rates, sizeof(int));
6256         if (!mode->rates)
6257                 return NL_SKIP;
6258
6259         idx = 0;
6260
6261         nla_for_each_nested(nl_rate, tb, rem_rate) {
6262                 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
6263                           nla_data(nl_rate), nla_len(nl_rate),
6264                           rate_policy);
6265                 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
6266                         continue;
6267                 mode->rates[idx] = nla_get_u32(
6268                         tb_rate[NL80211_BITRATE_ATTR_RATE]);
6269                 idx++;
6270         }
6271
6272         return NL_OK;
6273 }
6274
6275
6276 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
6277 {
6278         struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
6279         struct hostapd_hw_modes *mode;
6280         int ret;
6281
6282         if (phy_info->last_mode != nl_band->nla_type) {
6283                 mode = os_realloc_array(phy_info->modes,
6284                                         *phy_info->num_modes + 1,
6285                                         sizeof(*mode));
6286                 if (!mode)
6287                         return NL_SKIP;
6288                 phy_info->modes = mode;
6289
6290                 mode = &phy_info->modes[*(phy_info->num_modes)];
6291                 os_memset(mode, 0, sizeof(*mode));
6292                 mode->mode = NUM_HOSTAPD_MODES;
6293                 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
6294                         HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
6295
6296                 /*
6297                  * Unsupported VHT MCS stream is defined as value 3, so the VHT
6298                  * MCS RX/TX map must be initialized with 0xffff to mark all 8
6299                  * possible streams as unsupported. This will be overridden if
6300                  * driver advertises VHT support.
6301                  */
6302                 mode->vht_mcs_set[0] = 0xff;
6303                 mode->vht_mcs_set[1] = 0xff;
6304                 mode->vht_mcs_set[4] = 0xff;
6305                 mode->vht_mcs_set[5] = 0xff;
6306
6307                 *(phy_info->num_modes) += 1;
6308                 phy_info->last_mode = nl_band->nla_type;
6309                 phy_info->last_chan_idx = 0;
6310         } else
6311                 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
6312
6313         nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
6314                   nla_len(nl_band), NULL);
6315
6316         phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
6317                          tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
6318                          tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
6319                          tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
6320         phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
6321                           tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
6322         ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
6323         if (ret != NL_OK)
6324                 return ret;
6325         ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
6326         if (ret != NL_OK)
6327                 return ret;
6328
6329         return NL_OK;
6330 }
6331
6332
6333 static int phy_info_handler(struct nl_msg *msg, void *arg)
6334 {
6335         struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
6336         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6337         struct phy_info_arg *phy_info = arg;
6338         struct nlattr *nl_band;
6339         int rem_band;
6340
6341         nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6342                   genlmsg_attrlen(gnlh, 0), NULL);
6343
6344         if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
6345                 return NL_SKIP;
6346
6347         nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
6348         {
6349                 int res = phy_info_band(phy_info, nl_band);
6350                 if (res != NL_OK)
6351                         return res;
6352         }
6353
6354         return NL_SKIP;
6355 }
6356
6357
6358 static struct hostapd_hw_modes *
6359 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
6360                                      u16 *num_modes)
6361 {
6362         u16 m;
6363         struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
6364         int i, mode11g_idx = -1;
6365
6366         /* heuristic to set up modes */
6367         for (m = 0; m < *num_modes; m++) {
6368                 if (!modes[m].num_channels)
6369                         continue;
6370                 if (modes[m].channels[0].freq < 4000) {
6371                         modes[m].mode = HOSTAPD_MODE_IEEE80211B;
6372                         for (i = 0; i < modes[m].num_rates; i++) {
6373                                 if (modes[m].rates[i] > 200) {
6374                                         modes[m].mode = HOSTAPD_MODE_IEEE80211G;
6375                                         break;
6376                                 }
6377                         }
6378                 } else if (modes[m].channels[0].freq > 50000)
6379                         modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
6380                 else
6381                         modes[m].mode = HOSTAPD_MODE_IEEE80211A;
6382         }
6383
6384         /* If only 802.11g mode is included, use it to construct matching
6385          * 802.11b mode data. */
6386
6387         for (m = 0; m < *num_modes; m++) {
6388                 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
6389                         return modes; /* 802.11b already included */
6390                 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
6391                         mode11g_idx = m;
6392         }
6393
6394         if (mode11g_idx < 0)
6395                 return modes; /* 2.4 GHz band not supported at all */
6396
6397         nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
6398         if (nmodes == NULL)
6399                 return modes; /* Could not add 802.11b mode */
6400
6401         mode = &nmodes[*num_modes];
6402         os_memset(mode, 0, sizeof(*mode));
6403         (*num_modes)++;
6404         modes = nmodes;
6405
6406         mode->mode = HOSTAPD_MODE_IEEE80211B;
6407
6408         mode11g = &modes[mode11g_idx];
6409         mode->num_channels = mode11g->num_channels;
6410         mode->channels = os_malloc(mode11g->num_channels *
6411                                    sizeof(struct hostapd_channel_data));
6412         if (mode->channels == NULL) {
6413                 (*num_modes)--;
6414                 return modes; /* Could not add 802.11b mode */
6415         }
6416         os_memcpy(mode->channels, mode11g->channels,
6417                   mode11g->num_channels * sizeof(struct hostapd_channel_data));
6418
6419         mode->num_rates = 0;
6420         mode->rates = os_malloc(4 * sizeof(int));
6421         if (mode->rates == NULL) {
6422                 os_free(mode->channels);
6423                 (*num_modes)--;
6424                 return modes; /* Could not add 802.11b mode */
6425         }
6426
6427         for (i = 0; i < mode11g->num_rates; i++) {
6428                 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
6429                     mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
6430                         continue;
6431                 mode->rates[mode->num_rates] = mode11g->rates[i];
6432                 mode->num_rates++;
6433                 if (mode->num_rates == 4)
6434                         break;
6435         }
6436
6437         if (mode->num_rates == 0) {
6438                 os_free(mode->channels);
6439                 os_free(mode->rates);
6440                 (*num_modes)--;
6441                 return modes; /* No 802.11b rates */
6442         }
6443
6444         wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
6445                    "information");
6446
6447         return modes;
6448 }
6449
6450
6451 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
6452                                   int end)
6453 {
6454         int c;
6455
6456         for (c = 0; c < mode->num_channels; c++) {
6457                 struct hostapd_channel_data *chan = &mode->channels[c];
6458                 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
6459                         chan->flag |= HOSTAPD_CHAN_HT40;
6460         }
6461 }
6462
6463
6464 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
6465                                       int end)
6466 {
6467         int c;
6468
6469         for (c = 0; c < mode->num_channels; c++) {
6470                 struct hostapd_channel_data *chan = &mode->channels[c];
6471                 if (!(chan->flag & HOSTAPD_CHAN_HT40))
6472                         continue;
6473                 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
6474                         chan->flag |= HOSTAPD_CHAN_HT40MINUS;
6475                 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
6476                         chan->flag |= HOSTAPD_CHAN_HT40PLUS;
6477         }
6478 }
6479
6480
6481 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
6482                                       struct phy_info_arg *results)
6483 {
6484         u16 m;
6485
6486         for (m = 0; m < *results->num_modes; m++) {
6487                 int c;
6488                 struct hostapd_hw_modes *mode = &results->modes[m];
6489
6490                 for (c = 0; c < mode->num_channels; c++) {
6491                         struct hostapd_channel_data *chan = &mode->channels[c];
6492                         if ((u32) chan->freq - 10 >= start &&
6493                             (u32) chan->freq + 10 <= end)
6494                                 chan->max_tx_power = max_eirp;
6495                 }
6496         }
6497 }
6498
6499
6500 static void nl80211_reg_rule_ht40(u32 start, u32 end,
6501                                   struct phy_info_arg *results)
6502 {
6503         u16 m;
6504
6505         for (m = 0; m < *results->num_modes; m++) {
6506                 if (!(results->modes[m].ht_capab &
6507                       HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6508                         continue;
6509                 nl80211_set_ht40_mode(&results->modes[m], start, end);
6510         }
6511 }
6512
6513
6514 static void nl80211_reg_rule_sec(struct nlattr *tb[],
6515                                  struct phy_info_arg *results)
6516 {
6517         u32 start, end, max_bw;
6518         u16 m;
6519
6520         if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6521             tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6522             tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
6523                 return;
6524
6525         start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6526         end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6527         max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6528
6529         if (max_bw < 20)
6530                 return;
6531
6532         for (m = 0; m < *results->num_modes; m++) {
6533                 if (!(results->modes[m].ht_capab &
6534                       HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6535                         continue;
6536                 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
6537         }
6538 }
6539
6540
6541 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
6542                                  int end)
6543 {
6544         int c;
6545
6546         for (c = 0; c < mode->num_channels; c++) {
6547                 struct hostapd_channel_data *chan = &mode->channels[c];
6548                 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
6549                         chan->flag |= HOSTAPD_CHAN_VHT_10_70;
6550
6551                 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
6552                         chan->flag |= HOSTAPD_CHAN_VHT_30_50;
6553
6554                 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
6555                         chan->flag |= HOSTAPD_CHAN_VHT_50_30;
6556
6557                 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
6558                         chan->flag |= HOSTAPD_CHAN_VHT_70_10;
6559         }
6560 }
6561
6562
6563 static void nl80211_reg_rule_vht(struct nlattr *tb[],
6564                                  struct phy_info_arg *results)
6565 {
6566         u32 start, end, max_bw;
6567         u16 m;
6568
6569         if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6570             tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6571             tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
6572                 return;
6573
6574         start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6575         end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6576         max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6577
6578         if (max_bw < 80)
6579                 return;
6580
6581         for (m = 0; m < *results->num_modes; m++) {
6582                 if (!(results->modes[m].ht_capab &
6583                       HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6584                         continue;
6585                 /* TODO: use a real VHT support indication */
6586                 if (!results->modes[m].vht_capab)
6587                         continue;
6588
6589                 nl80211_set_vht_mode(&results->modes[m], start, end);
6590         }
6591 }
6592
6593
6594 static const char * dfs_domain_name(enum nl80211_dfs_regions region)
6595 {
6596         switch (region) {
6597         case NL80211_DFS_UNSET:
6598                 return "DFS-UNSET";
6599         case NL80211_DFS_FCC:
6600                 return "DFS-FCC";
6601         case NL80211_DFS_ETSI:
6602                 return "DFS-ETSI";
6603         case NL80211_DFS_JP:
6604                 return "DFS-JP";
6605         default:
6606                 return "DFS-invalid";
6607         }
6608 }
6609
6610
6611 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
6612 {
6613         struct phy_info_arg *results = arg;
6614         struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
6615         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6616         struct nlattr *nl_rule;
6617         struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
6618         int rem_rule;
6619         static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
6620                 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6621                 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6622                 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6623                 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6624                 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6625                 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6626         };
6627
6628         nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6629                   genlmsg_attrlen(gnlh, 0), NULL);
6630         if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
6631             !tb_msg[NL80211_ATTR_REG_RULES]) {
6632                 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
6633                            "available");
6634                 return NL_SKIP;
6635         }
6636
6637         if (tb_msg[NL80211_ATTR_DFS_REGION]) {
6638                 enum nl80211_dfs_regions dfs_domain;
6639                 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
6640                 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)",
6641                            (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]),
6642                            dfs_domain_name(dfs_domain));
6643         } else {
6644                 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
6645                            (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
6646         }
6647
6648         nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6649         {
6650                 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0;
6651                 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6652                           nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6653                 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6654                     tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
6655                         continue;
6656                 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6657                 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6658                 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6659                         max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
6660                 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6661                         max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6662                 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS])
6663                         flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
6664
6665                 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s",
6666                            start, end, max_bw, max_eirp,
6667                            flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "",
6668                            flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "",
6669                            flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "",
6670                            flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" :
6671                            "",
6672                            flags & NL80211_RRF_DFS ? " (DFS)" : "",
6673                            flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "",
6674                            flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "",
6675                            flags & NL80211_RRF_NO_IR ? " (no IR)" : "");
6676                 if (max_bw >= 40)
6677                         nl80211_reg_rule_ht40(start, end, results);
6678                 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6679                         nl80211_reg_rule_max_eirp(start, end, max_eirp,
6680                                                   results);
6681         }
6682
6683         nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6684         {
6685                 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6686                           nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6687                 nl80211_reg_rule_sec(tb_rule, results);
6688         }
6689
6690         nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6691         {
6692                 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6693                           nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6694                 nl80211_reg_rule_vht(tb_rule, results);
6695         }
6696
6697         return NL_SKIP;
6698 }
6699
6700
6701 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
6702                                         struct phy_info_arg *results)
6703 {
6704         struct nl_msg *msg;
6705
6706         msg = nlmsg_alloc();
6707         if (!msg)
6708                 return -ENOMEM;
6709
6710         nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
6711         return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
6712 }
6713
6714
6715 static struct hostapd_hw_modes *
6716 wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
6717 {
6718         u32 feat;
6719         struct i802_bss *bss = priv;
6720         struct wpa_driver_nl80211_data *drv = bss->drv;
6721         struct nl_msg *msg;
6722         struct phy_info_arg result = {
6723                 .num_modes = num_modes,
6724                 .modes = NULL,
6725                 .last_mode = -1,
6726         };
6727
6728         *num_modes = 0;
6729         *flags = 0;
6730
6731         msg = nlmsg_alloc();
6732         if (!msg)
6733                 return NULL;
6734
6735         feat = get_nl80211_protocol_features(drv);
6736         if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
6737                 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
6738         else
6739                 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
6740
6741         NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
6742         if (nl80211_set_iface_id(msg, bss) < 0)
6743                 goto nla_put_failure;
6744
6745         if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
6746                 nl80211_set_regulatory_flags(drv, &result);
6747                 return wpa_driver_nl80211_postprocess_modes(result.modes,
6748                                                             num_modes);
6749         }
6750         msg = NULL;
6751  nla_put_failure:
6752         nlmsg_free(msg);
6753         return NULL;
6754 }
6755
6756
6757 static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
6758                                         const void *data, size_t len,
6759                                         int encrypt, int noack)
6760 {
6761         __u8 rtap_hdr[] = {
6762                 0x00, 0x00, /* radiotap version */
6763                 0x0e, 0x00, /* radiotap length */
6764                 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
6765                 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
6766                 0x00,       /* padding */
6767                 0x00, 0x00, /* RX and TX flags to indicate that */
6768                 0x00, 0x00, /* this is the injected frame directly */
6769         };
6770         struct iovec iov[2] = {
6771                 {
6772                         .iov_base = &rtap_hdr,
6773                         .iov_len = sizeof(rtap_hdr),
6774                 },
6775                 {
6776                         .iov_base = (void *) data,
6777                         .iov_len = len,
6778                 }
6779         };
6780         struct msghdr msg = {
6781                 .msg_name = NULL,
6782                 .msg_namelen = 0,
6783                 .msg_iov = iov,
6784                 .msg_iovlen = 2,
6785                 .msg_control = NULL,
6786                 .msg_controllen = 0,
6787                 .msg_flags = 0,
6788         };
6789         int res;
6790         u16 txflags = 0;
6791
6792         if (encrypt)
6793                 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
6794
6795         if (drv->monitor_sock < 0) {
6796                 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
6797                            "for %s", __func__);
6798                 return -1;
6799         }
6800
6801         if (noack)
6802                 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
6803         WPA_PUT_LE16(&rtap_hdr[12], txflags);
6804
6805         res = sendmsg(drv->monitor_sock, &msg, 0);
6806         if (res < 0) {
6807                 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
6808                 return -1;
6809         }
6810         return 0;
6811 }
6812
6813
6814 static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
6815                                          const void *data, size_t len,
6816                                          int encrypt, int noack,
6817                                          unsigned int freq, int no_cck,
6818                                          int offchanok, unsigned int wait_time)
6819 {
6820         struct wpa_driver_nl80211_data *drv = bss->drv;
6821         u64 cookie;
6822         int res;
6823
6824         if (freq == 0) {
6825                 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u",
6826                            bss->freq);
6827                 freq = bss->freq;
6828         }
6829
6830         if (drv->use_monitor) {
6831                 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr",
6832                            freq, bss->freq);
6833                 return wpa_driver_nl80211_send_mntr(drv, data, len,
6834                                                     encrypt, noack);
6835         }
6836
6837         wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd");
6838         res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
6839                                      &cookie, no_cck, noack, offchanok);
6840         if (res == 0 && !noack) {
6841                 const struct ieee80211_mgmt *mgmt;
6842                 u16 fc;
6843
6844                 mgmt = (const struct ieee80211_mgmt *) data;
6845                 fc = le_to_host16(mgmt->frame_control);
6846                 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6847                     WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) {
6848                         wpa_printf(MSG_MSGDUMP,
6849                                    "nl80211: Update send_action_cookie from 0x%llx to 0x%llx",
6850                                    (long long unsigned int)
6851                                    drv->send_action_cookie,
6852                                    (long long unsigned int) cookie);
6853                         drv->send_action_cookie = cookie;
6854                 }
6855         }
6856
6857         return res;
6858 }
6859
6860
6861 static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data,
6862                                         size_t data_len, int noack,
6863                                         unsigned int freq, int no_cck,
6864                                         int offchanok,
6865                                         unsigned int wait_time)
6866 {
6867         struct wpa_driver_nl80211_data *drv = bss->drv;
6868         struct ieee80211_mgmt *mgmt;
6869         int encrypt = 1;
6870         u16 fc;
6871
6872         mgmt = (struct ieee80211_mgmt *) data;
6873         fc = le_to_host16(mgmt->frame_control);
6874         wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d",
6875                    noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode);
6876
6877         if ((is_sta_interface(drv->nlmode) ||
6878              drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) &&
6879             WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6880             WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
6881                 /*
6882                  * The use of last_mgmt_freq is a bit of a hack,
6883                  * but it works due to the single-threaded nature
6884                  * of wpa_supplicant.
6885                  */
6886                 if (freq == 0) {
6887                         wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d",
6888                                    drv->last_mgmt_freq);
6889                         freq = drv->last_mgmt_freq;
6890                 }
6891                 return nl80211_send_frame_cmd(bss, freq, 0,
6892                                               data, data_len, NULL, 1, noack,
6893                                               1);
6894         }
6895
6896         if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
6897                 if (freq == 0) {
6898                         wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d",
6899                                    bss->freq);
6900                         freq = bss->freq;
6901                 }
6902                 return nl80211_send_frame_cmd(bss, freq,
6903                                               (int) freq == bss->freq ? 0 :
6904                                               wait_time,
6905                                               data, data_len,
6906                                               &drv->send_action_cookie,
6907                                               no_cck, noack, offchanok);
6908         }
6909
6910         if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6911             WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
6912                 /*
6913                  * Only one of the authentication frame types is encrypted.
6914                  * In order for static WEP encryption to work properly (i.e.,
6915                  * to not encrypt the frame), we need to tell mac80211 about
6916                  * the frames that must not be encrypted.
6917                  */
6918                 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
6919                 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
6920                 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
6921                         encrypt = 0;
6922         }
6923
6924         wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame");
6925         return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
6926                                              noack, freq, no_cck, offchanok,
6927                                              wait_time);
6928 }
6929
6930
6931 static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
6932                            int slot, int ht_opmode, int ap_isolate,
6933                            int *basic_rates)
6934 {
6935         struct wpa_driver_nl80211_data *drv = bss->drv;
6936         struct nl_msg *msg;
6937
6938         msg = nlmsg_alloc();
6939         if (!msg)
6940                 return -ENOMEM;
6941
6942         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
6943
6944         if (cts >= 0)
6945                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
6946         if (preamble >= 0)
6947                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
6948         if (slot >= 0)
6949                 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
6950         if (ht_opmode >= 0)
6951                 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
6952         if (ap_isolate >= 0)
6953                 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
6954
6955         if (basic_rates) {
6956                 u8 rates[NL80211_MAX_SUPP_RATES];
6957                 u8 rates_len = 0;
6958                 int i;
6959
6960                 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
6961                      i++)
6962                         rates[rates_len++] = basic_rates[i] / 5;
6963
6964                 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
6965         }
6966
6967         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
6968
6969         return send_and_recv_msgs(drv, msg, NULL, NULL);
6970  nla_put_failure:
6971         nlmsg_free(msg);
6972         return -ENOBUFS;
6973 }
6974
6975
6976 static int wpa_driver_nl80211_set_acl(void *priv,
6977                                       struct hostapd_acl_params *params)
6978 {
6979         struct i802_bss *bss = priv;
6980         struct wpa_driver_nl80211_data *drv = bss->drv;
6981         struct nl_msg *msg;
6982         struct nlattr *acl;
6983         unsigned int i;
6984         int ret = 0;
6985
6986         if (!(drv->capa.max_acl_mac_addrs))
6987                 return -ENOTSUP;
6988
6989         if (params->num_mac_acl > drv->capa.max_acl_mac_addrs)
6990                 return -ENOTSUP;
6991
6992         msg = nlmsg_alloc();
6993         if (!msg)
6994                 return -ENOMEM;
6995
6996         wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)",
6997                    params->acl_policy ? "Accept" : "Deny", params->num_mac_acl);
6998
6999         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL);
7000
7001         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7002
7003         NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ?
7004                     NL80211_ACL_POLICY_DENY_UNLESS_LISTED :
7005                     NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED);
7006
7007         acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS);
7008         if (acl == NULL)
7009                 goto nla_put_failure;
7010
7011         for (i = 0; i < params->num_mac_acl; i++)
7012                 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr);
7013
7014         nla_nest_end(msg, acl);
7015
7016         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7017         msg = NULL;
7018         if (ret) {
7019                 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)",
7020                            ret, strerror(-ret));
7021         }
7022
7023 nla_put_failure:
7024         nlmsg_free(msg);
7025
7026         return ret;
7027 }
7028
7029
7030 static int wpa_driver_nl80211_set_ap(void *priv,
7031                                      struct wpa_driver_ap_params *params)
7032 {
7033         struct i802_bss *bss = priv;
7034         struct wpa_driver_nl80211_data *drv = bss->drv;
7035         struct nl_msg *msg;
7036         u8 cmd = NL80211_CMD_NEW_BEACON;
7037         int ret;
7038         int beacon_set;
7039         int ifindex = if_nametoindex(bss->ifname);
7040         int num_suites;
7041         u32 suites[10], suite;
7042         u32 ver;
7043
7044         beacon_set = bss->beacon_set;
7045
7046         msg = nlmsg_alloc();
7047         if (!msg)
7048                 return -ENOMEM;
7049
7050         wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
7051                    beacon_set);
7052         if (beacon_set)
7053                 cmd = NL80211_CMD_SET_BEACON;
7054
7055         nl80211_cmd(drv, msg, 0, cmd);
7056         wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head",
7057                     params->head, params->head_len);
7058         NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
7059         wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail",
7060                     params->tail, params->tail_len);
7061         NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
7062         wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex);
7063         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
7064         wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int);
7065         NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
7066         wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period);
7067         NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
7068         wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid",
7069                           params->ssid, params->ssid_len);
7070         NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
7071                 params->ssid);
7072         if (params->proberesp && params->proberesp_len) {
7073                 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)",
7074                             params->proberesp, params->proberesp_len);
7075                 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
7076                         params->proberesp);
7077         }
7078         switch (params->hide_ssid) {
7079         case NO_SSID_HIDING:
7080                 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use");
7081                 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
7082                             NL80211_HIDDEN_SSID_NOT_IN_USE);
7083                 break;
7084         case HIDDEN_SSID_ZERO_LEN:
7085                 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len");
7086                 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
7087                             NL80211_HIDDEN_SSID_ZERO_LEN);
7088                 break;
7089         case HIDDEN_SSID_ZERO_CONTENTS:
7090                 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents");
7091                 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
7092                             NL80211_HIDDEN_SSID_ZERO_CONTENTS);
7093                 break;
7094         }
7095         wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy);
7096         if (params->privacy)
7097                 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
7098         wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs);
7099         if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
7100             (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
7101                 /* Leave out the attribute */
7102         } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
7103                 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
7104                             NL80211_AUTHTYPE_SHARED_KEY);
7105         else
7106                 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
7107                             NL80211_AUTHTYPE_OPEN_SYSTEM);
7108
7109         wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version);
7110         ver = 0;
7111         if (params->wpa_version & WPA_PROTO_WPA)
7112                 ver |= NL80211_WPA_VERSION_1;
7113         if (params->wpa_version & WPA_PROTO_RSN)
7114                 ver |= NL80211_WPA_VERSION_2;
7115         if (ver)
7116                 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
7117
7118         wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x",
7119                    params->key_mgmt_suites);
7120         num_suites = 0;
7121         if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
7122                 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
7123         if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
7124                 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
7125         if (num_suites) {
7126                 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
7127                         num_suites * sizeof(u32), suites);
7128         }
7129
7130         if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
7131             params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
7132                 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
7133
7134         wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x",
7135                    params->pairwise_ciphers);
7136         num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers,
7137                                                  suites, ARRAY_SIZE(suites));
7138         if (num_suites) {
7139                 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
7140                         num_suites * sizeof(u32), suites);
7141         }
7142
7143         wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x",
7144                    params->group_cipher);
7145         suite = wpa_cipher_to_cipher_suite(params->group_cipher);
7146         if (suite)
7147                 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite);
7148
7149         if (params->beacon_ies) {
7150                 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies",
7151                                 params->beacon_ies);
7152                 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
7153                         wpabuf_head(params->beacon_ies));
7154         }
7155         if (params->proberesp_ies) {
7156                 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies",
7157                                 params->proberesp_ies);
7158                 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
7159                         wpabuf_len(params->proberesp_ies),
7160                         wpabuf_head(params->proberesp_ies));
7161         }
7162         if (params->assocresp_ies) {
7163                 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies",
7164                                 params->assocresp_ies);
7165                 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
7166                         wpabuf_len(params->assocresp_ies),
7167                         wpabuf_head(params->assocresp_ies));
7168         }
7169
7170         if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER)  {
7171                 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d",
7172                            params->ap_max_inactivity);
7173                 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
7174                             params->ap_max_inactivity);
7175         }
7176
7177         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7178         if (ret) {
7179                 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
7180                            ret, strerror(-ret));
7181         } else {
7182                 bss->beacon_set = 1;
7183                 nl80211_set_bss(bss, params->cts_protect, params->preamble,
7184                                 params->short_slot_time, params->ht_opmode,
7185                                 params->isolate, params->basic_rates);
7186         }
7187         return ret;
7188  nla_put_failure:
7189         nlmsg_free(msg);
7190         return -ENOBUFS;
7191 }
7192
7193
7194 static int nl80211_put_freq_params(struct nl_msg *msg,
7195                                    struct hostapd_freq_params *freq)
7196 {
7197         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
7198         if (freq->vht_enabled) {
7199                 switch (freq->bandwidth) {
7200                 case 20:
7201                         NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
7202                                     NL80211_CHAN_WIDTH_20);
7203                         break;
7204                 case 40:
7205                         NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
7206                                     NL80211_CHAN_WIDTH_40);
7207                         break;
7208                 case 80:
7209                         if (freq->center_freq2)
7210                                 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
7211                                             NL80211_CHAN_WIDTH_80P80);
7212                         else
7213                                 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
7214                                             NL80211_CHAN_WIDTH_80);
7215                         break;
7216                 case 160:
7217                         NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
7218                                     NL80211_CHAN_WIDTH_160);
7219                         break;
7220                 default:
7221                         return -EINVAL;
7222                 }
7223                 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1);
7224                 if (freq->center_freq2)
7225                         NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2,
7226                                     freq->center_freq2);
7227         } else if (freq->ht_enabled) {
7228                 switch (freq->sec_channel_offset) {
7229                 case -1:
7230                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
7231                                     NL80211_CHAN_HT40MINUS);
7232                         break;
7233                 case 1:
7234                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
7235                                     NL80211_CHAN_HT40PLUS);
7236                         break;
7237                 default:
7238                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
7239                                     NL80211_CHAN_HT20);
7240                         break;
7241                 }
7242         }
7243         return 0;
7244
7245 nla_put_failure:
7246         return -ENOBUFS;
7247 }
7248
7249
7250 static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
7251                                        struct hostapd_freq_params *freq)
7252 {
7253         struct wpa_driver_nl80211_data *drv = bss->drv;
7254         struct nl_msg *msg;
7255         int ret;
7256
7257         wpa_printf(MSG_DEBUG,
7258                    "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
7259                    freq->freq, freq->ht_enabled, freq->vht_enabled,
7260                    freq->bandwidth, freq->center_freq1, freq->center_freq2);
7261         msg = nlmsg_alloc();
7262         if (!msg)
7263                 return -1;
7264
7265         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
7266
7267         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7268         if (nl80211_put_freq_params(msg, freq) < 0)
7269                 goto nla_put_failure;
7270
7271         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7272         msg = NULL;
7273         if (ret == 0) {
7274                 bss->freq = freq->freq;
7275                 return 0;
7276         }
7277         wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
7278                    "%d (%s)", freq->freq, ret, strerror(-ret));
7279 nla_put_failure:
7280         nlmsg_free(msg);
7281         return -1;
7282 }
7283
7284
7285 static u32 sta_flags_nl80211(int flags)
7286 {
7287         u32 f = 0;
7288
7289         if (flags & WPA_STA_AUTHORIZED)
7290                 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
7291         if (flags & WPA_STA_WMM)
7292                 f |= BIT(NL80211_STA_FLAG_WME);
7293         if (flags & WPA_STA_SHORT_PREAMBLE)
7294                 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
7295         if (flags & WPA_STA_MFP)
7296                 f |= BIT(NL80211_STA_FLAG_MFP);
7297         if (flags & WPA_STA_TDLS_PEER)
7298                 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
7299
7300         return f;
7301 }
7302
7303
7304 static int wpa_driver_nl80211_sta_add(void *priv,
7305                                       struct hostapd_sta_add_params *params)
7306 {
7307         struct i802_bss *bss = priv;
7308         struct wpa_driver_nl80211_data *drv = bss->drv;
7309         struct nl_msg *msg;
7310         struct nl80211_sta_flag_update upd;
7311         int ret = -ENOBUFS;
7312
7313         if ((params->flags & WPA_STA_TDLS_PEER) &&
7314             !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
7315                 return -EOPNOTSUPP;
7316
7317         msg = nlmsg_alloc();
7318         if (!msg)
7319                 return -ENOMEM;
7320
7321         wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR,
7322                    params->set ? "Set" : "Add", MAC2STR(params->addr));
7323         nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
7324                     NL80211_CMD_NEW_STATION);
7325
7326         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
7327         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
7328         NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
7329                 params->supp_rates);
7330         wpa_hexdump(MSG_DEBUG, "  * supported rates", params->supp_rates,
7331                     params->supp_rates_len);
7332         if (!params->set) {
7333                 if (params->aid) {
7334                         wpa_printf(MSG_DEBUG, "  * aid=%u", params->aid);
7335                         NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
7336                 } else {
7337                         /*
7338                          * cfg80211 validates that AID is non-zero, so we have
7339                          * to make this a non-zero value for the TDLS case where
7340                          * a dummy STA entry is used for now.
7341                          */
7342                         wpa_printf(MSG_DEBUG, "  * aid=1 (TDLS workaround)");
7343                         NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1);
7344                 }
7345                 wpa_printf(MSG_DEBUG, "  * listen_interval=%u",
7346                            params->listen_interval);
7347                 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
7348                             params->listen_interval);
7349         } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) {
7350                 wpa_printf(MSG_DEBUG, "  * peer_aid=%u", params->aid);
7351                 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid);
7352         }
7353         if (params->ht_capabilities) {
7354                 wpa_hexdump(MSG_DEBUG, "  * ht_capabilities",
7355                             (u8 *) params->ht_capabilities,
7356                             sizeof(*params->ht_capabilities));
7357                 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
7358                         sizeof(*params->ht_capabilities),
7359                         params->ht_capabilities);
7360         }
7361
7362         if (params->vht_capabilities) {
7363                 wpa_hexdump(MSG_DEBUG, "  * vht_capabilities",
7364                             (u8 *) params->vht_capabilities,
7365                             sizeof(*params->vht_capabilities));
7366                 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY,
7367                         sizeof(*params->vht_capabilities),
7368                         params->vht_capabilities);
7369         }
7370
7371         if (params->vht_opmode_enabled) {
7372                 wpa_printf(MSG_DEBUG, "  * opmode=%u", params->vht_opmode);
7373                 NLA_PUT_U8(msg, NL80211_ATTR_OPMODE_NOTIF,
7374                            params->vht_opmode);
7375         }
7376
7377         wpa_printf(MSG_DEBUG, "  * capability=0x%x", params->capability);
7378         NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability);
7379
7380         if (params->ext_capab) {
7381                 wpa_hexdump(MSG_DEBUG, "  * ext_capab",
7382                             params->ext_capab, params->ext_capab_len);
7383                 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY,
7384                         params->ext_capab_len, params->ext_capab);
7385         }
7386
7387         if (params->supp_channels) {
7388                 wpa_hexdump(MSG_DEBUG, "  * supported channels",
7389                             params->supp_channels, params->supp_channels_len);
7390                 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS,
7391                         params->supp_channels_len, params->supp_channels);
7392         }
7393
7394         if (params->supp_oper_classes) {
7395                 wpa_hexdump(MSG_DEBUG, "  * supported operating classes",
7396                             params->supp_oper_classes,
7397                             params->supp_oper_classes_len);
7398                 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES,
7399                         params->supp_oper_classes_len,
7400                         params->supp_oper_classes);
7401         }
7402
7403         os_memset(&upd, 0, sizeof(upd));
7404         upd.mask = sta_flags_nl80211(params->flags);
7405         upd.set = upd.mask;
7406         wpa_printf(MSG_DEBUG, "  * flags set=0x%x mask=0x%x",
7407                    upd.set, upd.mask);
7408         NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7409
7410         if (params->flags & WPA_STA_WMM) {
7411                 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME);
7412
7413                 if (!wme)
7414                         goto nla_put_failure;
7415
7416                 wpa_printf(MSG_DEBUG, "  * qosinfo=0x%x", params->qosinfo);
7417                 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES,
7418                                 params->qosinfo & WMM_QOSINFO_STA_AC_MASK);
7419                 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP,
7420                                 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) &
7421                                 WMM_QOSINFO_STA_SP_MASK);
7422                 nla_nest_end(msg, wme);
7423         }
7424
7425         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7426         msg = NULL;
7427         if (ret)
7428                 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
7429                            "result: %d (%s)", params->set ? "SET" : "NEW", ret,
7430                            strerror(-ret));
7431         if (ret == -EEXIST)
7432                 ret = 0;
7433  nla_put_failure:
7434         nlmsg_free(msg);
7435         return ret;
7436 }
7437
7438
7439 static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr)
7440 {
7441         struct wpa_driver_nl80211_data *drv = bss->drv;
7442         struct nl_msg *msg;
7443         int ret;
7444
7445         msg = nlmsg_alloc();
7446         if (!msg)
7447                 return -ENOMEM;
7448
7449         nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
7450
7451         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
7452                     if_nametoindex(bss->ifname));
7453         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7454
7455         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7456         wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR
7457                    " --> %d (%s)",
7458                    bss->ifname, MAC2STR(addr), ret, strerror(-ret));
7459         if (ret == -ENOENT)
7460                 return 0;
7461         return ret;
7462  nla_put_failure:
7463         nlmsg_free(msg);
7464         return -ENOBUFS;
7465 }
7466
7467
7468 static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
7469                                  int ifidx)
7470 {
7471         struct nl_msg *msg;
7472
7473         wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
7474
7475         /* stop listening for EAPOL on this interface */
7476         del_ifidx(drv, ifidx);
7477
7478         msg = nlmsg_alloc();
7479         if (!msg)
7480                 goto nla_put_failure;
7481
7482         nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
7483         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
7484
7485         if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7486                 return;
7487         msg = NULL;
7488  nla_put_failure:
7489         nlmsg_free(msg);
7490         wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
7491 }
7492
7493
7494 static const char * nl80211_iftype_str(enum nl80211_iftype mode)
7495 {
7496         switch (mode) {
7497         case NL80211_IFTYPE_ADHOC:
7498                 return "ADHOC";
7499         case NL80211_IFTYPE_STATION:
7500                 return "STATION";
7501         case NL80211_IFTYPE_AP:
7502                 return "AP";
7503         case NL80211_IFTYPE_AP_VLAN:
7504                 return "AP_VLAN";
7505         case NL80211_IFTYPE_WDS:
7506                 return "WDS";
7507         case NL80211_IFTYPE_MONITOR:
7508                 return "MONITOR";
7509         case NL80211_IFTYPE_MESH_POINT:
7510                 return "MESH_POINT";
7511         case NL80211_IFTYPE_P2P_CLIENT:
7512                 return "P2P_CLIENT";
7513         case NL80211_IFTYPE_P2P_GO:
7514                 return "P2P_GO";
7515         case NL80211_IFTYPE_P2P_DEVICE:
7516                 return "P2P_DEVICE";
7517         default:
7518                 return "unknown";
7519         }
7520 }
7521
7522
7523 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
7524                                      const char *ifname,
7525                                      enum nl80211_iftype iftype,
7526                                      const u8 *addr, int wds,
7527                                      int (*handler)(struct nl_msg *, void *),
7528                                      void *arg)
7529 {
7530         struct nl_msg *msg;
7531         int ifidx;
7532         int ret = -ENOBUFS;
7533
7534         wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
7535                    iftype, nl80211_iftype_str(iftype));
7536
7537         msg = nlmsg_alloc();
7538         if (!msg)
7539                 return -1;
7540
7541         nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
7542         if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
7543                 goto nla_put_failure;
7544         NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
7545         NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
7546
7547         if (iftype == NL80211_IFTYPE_MONITOR) {
7548                 struct nlattr *flags;
7549
7550                 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS);
7551                 if (!flags)
7552                         goto nla_put_failure;
7553
7554                 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES);
7555
7556                 nla_nest_end(msg, flags);
7557         } else if (wds) {
7558                 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
7559         }
7560
7561         ret = send_and_recv_msgs(drv, msg, handler, arg);
7562         msg = NULL;
7563         if (ret) {
7564  nla_put_failure:
7565                 nlmsg_free(msg);
7566                 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
7567                            ifname, ret, strerror(-ret));
7568                 return ret;
7569         }
7570
7571         if (iftype == NL80211_IFTYPE_P2P_DEVICE)
7572                 return 0;
7573
7574         ifidx = if_nametoindex(ifname);
7575         wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
7576                    ifname, ifidx);
7577
7578         if (ifidx <= 0)
7579                 return -1;
7580
7581         /* start listening for EAPOL on this interface */
7582         add_ifidx(drv, ifidx);
7583
7584         if (addr && iftype != NL80211_IFTYPE_MONITOR &&
7585             linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
7586                 nl80211_remove_iface(drv, ifidx);
7587                 return -1;
7588         }
7589
7590         return ifidx;
7591 }
7592
7593
7594 static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
7595                                 const char *ifname, enum nl80211_iftype iftype,
7596                                 const u8 *addr, int wds,
7597                                 int (*handler)(struct nl_msg *, void *),
7598                                 void *arg, int use_existing)
7599 {
7600         int ret;
7601
7602         ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler,
7603                                         arg);
7604
7605         /* if error occurred and interface exists already */
7606         if (ret == -ENFILE && if_nametoindex(ifname)) {
7607                 if (use_existing) {
7608                         wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s",
7609                                    ifname);
7610                         return -ENFILE;
7611                 }
7612                 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
7613
7614                 /* Try to remove the interface that was already there. */
7615                 nl80211_remove_iface(drv, if_nametoindex(ifname));
7616
7617                 /* Try to create the interface again */
7618                 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
7619                                                 wds, handler, arg);
7620         }
7621
7622         if (ret >= 0 && is_p2p_net_interface(iftype))
7623                 nl80211_disable_11b_rates(drv, ret, 1);
7624
7625         return ret;
7626 }
7627
7628
7629 static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
7630 {
7631         struct ieee80211_hdr *hdr;
7632         u16 fc;
7633         union wpa_event_data event;
7634
7635         hdr = (struct ieee80211_hdr *) buf;
7636         fc = le_to_host16(hdr->frame_control);
7637
7638         os_memset(&event, 0, sizeof(event));
7639         event.tx_status.type = WLAN_FC_GET_TYPE(fc);
7640         event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
7641         event.tx_status.dst = hdr->addr1;
7642         event.tx_status.data = buf;
7643         event.tx_status.data_len = len;
7644         event.tx_status.ack = ok;
7645         wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
7646 }
7647
7648
7649 static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
7650                              u8 *buf, size_t len)
7651 {
7652         struct ieee80211_hdr *hdr = (void *)buf;
7653         u16 fc;
7654         union wpa_event_data event;
7655
7656         if (len < sizeof(*hdr))
7657                 return;
7658
7659         fc = le_to_host16(hdr->frame_control);
7660
7661         os_memset(&event, 0, sizeof(event));
7662         event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
7663         event.rx_from_unknown.addr = hdr->addr2;
7664         event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
7665                 (WLAN_FC_FROMDS | WLAN_FC_TODS);
7666         wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
7667 }
7668
7669
7670 static void handle_frame(struct wpa_driver_nl80211_data *drv,
7671                          u8 *buf, size_t len, int datarate, int ssi_signal)
7672 {
7673         struct ieee80211_hdr *hdr;
7674         u16 fc;
7675         union wpa_event_data event;
7676
7677         hdr = (struct ieee80211_hdr *) buf;
7678         fc = le_to_host16(hdr->frame_control);
7679
7680         switch (WLAN_FC_GET_TYPE(fc)) {
7681         case WLAN_FC_TYPE_MGMT:
7682                 os_memset(&event, 0, sizeof(event));
7683                 event.rx_mgmt.frame = buf;
7684                 event.rx_mgmt.frame_len = len;
7685                 event.rx_mgmt.datarate = datarate;
7686                 event.rx_mgmt.ssi_signal = ssi_signal;
7687                 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
7688                 break;
7689         case WLAN_FC_TYPE_CTRL:
7690                 /* can only get here with PS-Poll frames */
7691                 wpa_printf(MSG_DEBUG, "CTRL");
7692                 from_unknown_sta(drv, buf, len);
7693                 break;
7694         case WLAN_FC_TYPE_DATA:
7695                 from_unknown_sta(drv, buf, len);
7696                 break;
7697         }
7698 }
7699
7700
7701 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
7702 {
7703         struct wpa_driver_nl80211_data *drv = eloop_ctx;
7704         int len;
7705         unsigned char buf[3000];
7706         struct ieee80211_radiotap_iterator iter;
7707         int ret;
7708         int datarate = 0, ssi_signal = 0;
7709         int injected = 0, failed = 0, rxflags = 0;
7710
7711         len = recv(sock, buf, sizeof(buf), 0);
7712         if (len < 0) {
7713                 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s",
7714                            strerror(errno));
7715                 return;
7716         }
7717
7718         if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
7719                 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame");
7720                 return;
7721         }
7722
7723         while (1) {
7724                 ret = ieee80211_radiotap_iterator_next(&iter);
7725                 if (ret == -ENOENT)
7726                         break;
7727                 if (ret) {
7728                         wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)",
7729                                    ret);
7730                         return;
7731                 }
7732                 switch (iter.this_arg_index) {
7733                 case IEEE80211_RADIOTAP_FLAGS:
7734                         if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
7735                                 len -= 4;
7736                         break;
7737                 case IEEE80211_RADIOTAP_RX_FLAGS:
7738                         rxflags = 1;
7739                         break;
7740                 case IEEE80211_RADIOTAP_TX_FLAGS:
7741                         injected = 1;
7742                         failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
7743                                         IEEE80211_RADIOTAP_F_TX_FAIL;
7744                         break;
7745                 case IEEE80211_RADIOTAP_DATA_RETRIES:
7746                         break;
7747                 case IEEE80211_RADIOTAP_CHANNEL:
7748                         /* TODO: convert from freq/flags to channel number */
7749                         break;
7750                 case IEEE80211_RADIOTAP_RATE:
7751                         datarate = *iter.this_arg * 5;
7752                         break;
7753                 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
7754                         ssi_signal = (s8) *iter.this_arg;
7755                         break;
7756                 }
7757         }
7758
7759         if (rxflags && injected)
7760                 return;
7761
7762         if (!injected)
7763                 handle_frame(drv, buf + iter.max_length,
7764                              len - iter.max_length, datarate, ssi_signal);
7765         else
7766                 handle_tx_callback(drv->ctx, buf + iter.max_length,
7767                                    len - iter.max_length, !failed);
7768 }
7769
7770
7771 /*
7772  * we post-process the filter code later and rewrite
7773  * this to the offset to the last instruction
7774  */
7775 #define PASS    0xFF
7776 #define FAIL    0xFE
7777
7778 static struct sock_filter msock_filter_insns[] = {
7779         /*
7780          * do a little-endian load of the radiotap length field
7781          */
7782         /* load lower byte into A */
7783         BPF_STMT(BPF_LD  | BPF_B | BPF_ABS, 2),
7784         /* put it into X (== index register) */
7785         BPF_STMT(BPF_MISC| BPF_TAX, 0),
7786         /* load upper byte into A */
7787         BPF_STMT(BPF_LD  | BPF_B | BPF_ABS, 3),
7788         /* left-shift it by 8 */
7789         BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
7790         /* or with X */
7791         BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
7792         /* put result into X */
7793         BPF_STMT(BPF_MISC| BPF_TAX, 0),
7794
7795         /*
7796          * Allow management frames through, this also gives us those
7797          * management frames that we sent ourselves with status
7798          */
7799         /* load the lower byte of the IEEE 802.11 frame control field */
7800         BPF_STMT(BPF_LD  | BPF_B | BPF_IND, 0),
7801         /* mask off frame type and version */
7802         BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
7803         /* accept frame if it's both 0, fall through otherwise */
7804         BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
7805
7806         /*
7807          * TODO: add a bit to radiotap RX flags that indicates
7808          * that the sending station is not associated, then
7809          * add a filter here that filters on our DA and that flag
7810          * to allow us to deauth frames to that bad station.
7811          *
7812          * For now allow all To DS data frames through.
7813          */
7814         /* load the IEEE 802.11 frame control field */
7815         BPF_STMT(BPF_LD  | BPF_H | BPF_IND, 0),
7816         /* mask off frame type, version and DS status */
7817         BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
7818         /* accept frame if version 0, type 2 and To DS, fall through otherwise
7819          */
7820         BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
7821
7822 #if 0
7823         /*
7824          * drop non-data frames
7825          */
7826         /* load the lower byte of the frame control field */
7827         BPF_STMT(BPF_LD   | BPF_B | BPF_IND, 0),
7828         /* mask off QoS bit */
7829         BPF_STMT(BPF_ALU  | BPF_AND | BPF_K, 0x0c),
7830         /* drop non-data frames */
7831         BPF_JUMP(BPF_JMP  | BPF_JEQ | BPF_K, 8, 0, FAIL),
7832 #endif
7833         /* load the upper byte of the frame control field */
7834         BPF_STMT(BPF_LD   | BPF_B | BPF_IND, 1),
7835         /* mask off toDS/fromDS */
7836         BPF_STMT(BPF_ALU  | BPF_AND | BPF_K, 0x03),
7837         /* accept WDS frames */
7838         BPF_JUMP(BPF_JMP  | BPF_JEQ | BPF_K, 3, PASS, 0),
7839
7840         /*
7841          * add header length to index
7842          */
7843         /* load the lower byte of the frame control field */
7844         BPF_STMT(BPF_LD   | BPF_B | BPF_IND, 0),
7845         /* mask off QoS bit */
7846         BPF_STMT(BPF_ALU  | BPF_AND | BPF_K, 0x80),
7847         /* right shift it by 6 to give 0 or 2 */
7848         BPF_STMT(BPF_ALU  | BPF_RSH | BPF_K, 6),
7849         /* add data frame header length */
7850         BPF_STMT(BPF_ALU  | BPF_ADD | BPF_K, 24),
7851         /* add index, was start of 802.11 header */
7852         BPF_STMT(BPF_ALU  | BPF_ADD | BPF_X, 0),
7853         /* move to index, now start of LL header */
7854         BPF_STMT(BPF_MISC | BPF_TAX, 0),
7855
7856         /*
7857          * Accept empty data frames, we use those for
7858          * polling activity.
7859          */
7860         BPF_STMT(BPF_LD  | BPF_W | BPF_LEN, 0),
7861         BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
7862
7863         /*
7864          * Accept EAPOL frames
7865          */
7866         BPF_STMT(BPF_LD  | BPF_W | BPF_IND, 0),
7867         BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
7868         BPF_STMT(BPF_LD  | BPF_W | BPF_IND, 4),
7869         BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
7870
7871         /* keep these last two statements or change the code below */
7872         /* return 0 == "DROP" */
7873         BPF_STMT(BPF_RET | BPF_K, 0),
7874         /* return ~0 == "keep all" */
7875         BPF_STMT(BPF_RET | BPF_K, ~0),
7876 };
7877
7878 static struct sock_fprog msock_filter = {
7879         .len = ARRAY_SIZE(msock_filter_insns),
7880         .filter = msock_filter_insns,
7881 };
7882
7883
7884 static int add_monitor_filter(int s)
7885 {
7886         int idx;
7887
7888         /* rewrite all PASS/FAIL jump offsets */
7889         for (idx = 0; idx < msock_filter.len; idx++) {
7890                 struct sock_filter *insn = &msock_filter_insns[idx];
7891
7892                 if (BPF_CLASS(insn->code) == BPF_JMP) {
7893                         if (insn->code == (BPF_JMP|BPF_JA)) {
7894                                 if (insn->k == PASS)
7895                                         insn->k = msock_filter.len - idx - 2;
7896                                 else if (insn->k == FAIL)
7897                                         insn->k = msock_filter.len - idx - 3;
7898                         }
7899
7900                         if (insn->jt == PASS)
7901                                 insn->jt = msock_filter.len - idx - 2;
7902                         else if (insn->jt == FAIL)
7903                                 insn->jt = msock_filter.len - idx - 3;
7904
7905                         if (insn->jf == PASS)
7906                                 insn->jf = msock_filter.len - idx - 2;
7907                         else if (insn->jf == FAIL)
7908                                 insn->jf = msock_filter.len - idx - 3;
7909                 }
7910         }
7911
7912         if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
7913                        &msock_filter, sizeof(msock_filter))) {
7914                 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s",
7915                            strerror(errno));
7916                 return -1;
7917         }
7918
7919         return 0;
7920 }
7921
7922
7923 static void nl80211_remove_monitor_interface(
7924         struct wpa_driver_nl80211_data *drv)
7925 {
7926         if (drv->monitor_refcount > 0)
7927                 drv->monitor_refcount--;
7928         wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d",
7929                    drv->monitor_refcount);
7930         if (drv->monitor_refcount > 0)
7931                 return;
7932
7933         if (drv->monitor_ifidx >= 0) {
7934                 nl80211_remove_iface(drv, drv->monitor_ifidx);
7935                 drv->monitor_ifidx = -1;
7936         }
7937         if (drv->monitor_sock >= 0) {
7938                 eloop_unregister_read_sock(drv->monitor_sock);
7939                 close(drv->monitor_sock);
7940                 drv->monitor_sock = -1;
7941         }
7942 }
7943
7944
7945 static int
7946 nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
7947 {
7948         char buf[IFNAMSIZ];
7949         struct sockaddr_ll ll;
7950         int optval;
7951         socklen_t optlen;
7952
7953         if (drv->monitor_ifidx >= 0) {
7954                 drv->monitor_refcount++;
7955                 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d",
7956                            drv->monitor_refcount);
7957                 return 0;
7958         }
7959
7960         if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) {
7961                 /*
7962                  * P2P interface name is of the format p2p-%s-%d. For monitor
7963                  * interface name corresponding to P2P GO, replace "p2p-" with
7964                  * "mon-" to retain the same interface name length and to
7965                  * indicate that it is a monitor interface.
7966                  */
7967                 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4);
7968         } else {
7969                 /* Non-P2P interface with AP functionality. */
7970                 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname);
7971         }
7972
7973         buf[IFNAMSIZ - 1] = '\0';
7974
7975         drv->monitor_ifidx =
7976                 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
7977                                      0, NULL, NULL, 0);
7978
7979         if (drv->monitor_ifidx == -EOPNOTSUPP) {
7980                 /*
7981                  * This is backward compatibility for a few versions of
7982                  * the kernel only that didn't advertise the right
7983                  * attributes for the only driver that then supported
7984                  * AP mode w/o monitor -- ath6kl.
7985                  */
7986                 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
7987                            "monitor interface type - try to run without it");
7988                 drv->device_ap_sme = 1;
7989         }
7990
7991         if (drv->monitor_ifidx < 0)
7992                 return -1;
7993
7994         if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
7995                 goto error;
7996
7997         memset(&ll, 0, sizeof(ll));
7998         ll.sll_family = AF_PACKET;
7999         ll.sll_ifindex = drv->monitor_ifidx;
8000         drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
8001         if (drv->monitor_sock < 0) {
8002                 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s",
8003                            strerror(errno));
8004                 goto error;
8005         }
8006
8007         if (add_monitor_filter(drv->monitor_sock)) {
8008                 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
8009                            "interface; do filtering in user space");
8010                 /* This works, but will cost in performance. */
8011         }
8012
8013         if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
8014                 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s",
8015                            strerror(errno));
8016                 goto error;
8017         }
8018
8019         optlen = sizeof(optval);
8020         optval = 20;
8021         if (setsockopt
8022             (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
8023                 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s",
8024                            strerror(errno));
8025                 goto error;
8026         }
8027
8028         if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
8029                                      drv, NULL)) {
8030                 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket");
8031                 goto error;
8032         }
8033
8034         drv->monitor_refcount++;
8035         return 0;
8036  error:
8037         nl80211_remove_monitor_interface(drv);
8038         return -1;
8039 }
8040
8041
8042 static int nl80211_setup_ap(struct i802_bss *bss)
8043 {
8044         struct wpa_driver_nl80211_data *drv = bss->drv;
8045
8046         wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d",
8047                    bss->ifname, drv->device_ap_sme, drv->use_monitor);
8048
8049         /*
8050          * Disable Probe Request reporting unless we need it in this way for
8051          * devices that include the AP SME, in the other case (unless using
8052          * monitor iface) we'll get it through the nl_mgmt socket instead.
8053          */
8054         if (!drv->device_ap_sme)
8055                 wpa_driver_nl80211_probe_req_report(bss, 0);
8056
8057         if (!drv->device_ap_sme && !drv->use_monitor)
8058                 if (nl80211_mgmt_subscribe_ap(bss))
8059                         return -1;
8060
8061         if (drv->device_ap_sme && !drv->use_monitor)
8062                 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
8063                         return -1;
8064
8065         if (!drv->device_ap_sme && drv->use_monitor &&
8066             nl80211_create_monitor_interface(drv) &&
8067             !drv->device_ap_sme)
8068                 return -1;
8069
8070         if (drv->device_ap_sme &&
8071             wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
8072                 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
8073                            "Probe Request frame reporting in AP mode");
8074                 /* Try to survive without this */
8075         }
8076
8077         return 0;
8078 }
8079
8080
8081 static void nl80211_teardown_ap(struct i802_bss *bss)
8082 {
8083         struct wpa_driver_nl80211_data *drv = bss->drv;
8084
8085         wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d",
8086                    bss->ifname, drv->device_ap_sme, drv->use_monitor);
8087         if (drv->device_ap_sme) {
8088                 wpa_driver_nl80211_probe_req_report(bss, 0);
8089                 if (!drv->use_monitor)
8090                         nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
8091         } else if (drv->use_monitor)
8092                 nl80211_remove_monitor_interface(drv);
8093         else
8094                 nl80211_mgmt_unsubscribe(bss, "AP teardown");
8095
8096         bss->beacon_set = 0;
8097 }
8098
8099
8100 static int nl80211_send_eapol_data(struct i802_bss *bss,
8101                                    const u8 *addr, const u8 *data,
8102                                    size_t data_len)
8103 {
8104         struct sockaddr_ll ll;
8105         int ret;
8106
8107         if (bss->drv->eapol_tx_sock < 0) {
8108                 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
8109                 return -1;
8110         }
8111
8112         os_memset(&ll, 0, sizeof(ll));
8113         ll.sll_family = AF_PACKET;
8114         ll.sll_ifindex = bss->ifindex;
8115         ll.sll_protocol = htons(ETH_P_PAE);
8116         ll.sll_halen = ETH_ALEN;
8117         os_memcpy(ll.sll_addr, addr, ETH_ALEN);
8118         ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
8119                      (struct sockaddr *) &ll, sizeof(ll));
8120         if (ret < 0)
8121                 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
8122                            strerror(errno));
8123
8124         return ret;
8125 }
8126
8127
8128 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
8129
8130 static int wpa_driver_nl80211_hapd_send_eapol(
8131         void *priv, const u8 *addr, const u8 *data,
8132         size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
8133 {
8134         struct i802_bss *bss = priv;
8135         struct wpa_driver_nl80211_data *drv = bss->drv;
8136         struct ieee80211_hdr *hdr;
8137         size_t len;
8138         u8 *pos;
8139         int res;
8140         int qos = flags & WPA_STA_WMM;
8141
8142         if (drv->device_ap_sme || !drv->use_monitor)
8143                 return nl80211_send_eapol_data(bss, addr, data, data_len);
8144
8145         len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
8146                 data_len;
8147         hdr = os_zalloc(len);
8148         if (hdr == NULL) {
8149                 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)",
8150                            (unsigned long) len);
8151                 return -1;
8152         }
8153
8154         hdr->frame_control =
8155                 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
8156         hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
8157         if (encrypt)
8158                 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
8159         if (qos) {
8160                 hdr->frame_control |=
8161                         host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
8162         }
8163
8164         memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
8165         memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
8166         memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
8167         pos = (u8 *) (hdr + 1);
8168
8169         if (qos) {
8170                 /* Set highest priority in QoS header */
8171                 pos[0] = 7;
8172                 pos[1] = 0;
8173                 pos += 2;
8174         }
8175
8176         memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
8177         pos += sizeof(rfc1042_header);
8178         WPA_PUT_BE16(pos, ETH_P_PAE);
8179         pos += 2;
8180         memcpy(pos, data, data_len);
8181
8182         res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
8183                                             0, 0, 0, 0);
8184         if (res < 0) {
8185                 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
8186                            "failed: %d (%s)",
8187                            (unsigned long) len, errno, strerror(errno));
8188         }
8189         os_free(hdr);
8190
8191         return res;
8192 }
8193
8194
8195 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
8196                                             int total_flags,
8197                                             int flags_or, int flags_and)
8198 {
8199         struct i802_bss *bss = priv;
8200         struct wpa_driver_nl80211_data *drv = bss->drv;
8201         struct nl_msg *msg;
8202         struct nlattr *flags;
8203         struct nl80211_sta_flag_update upd;
8204
8205         msg = nlmsg_alloc();
8206         if (!msg)
8207                 return -ENOMEM;
8208
8209         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
8210
8211         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
8212                     if_nametoindex(bss->ifname));
8213         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8214
8215         /*
8216          * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
8217          * can be removed eventually.
8218          */
8219         flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS);
8220         if (!flags)
8221                 goto nla_put_failure;
8222         if (total_flags & WPA_STA_AUTHORIZED)
8223                 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED);
8224
8225         if (total_flags & WPA_STA_WMM)
8226                 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME);
8227
8228         if (total_flags & WPA_STA_SHORT_PREAMBLE)
8229                 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE);
8230
8231         if (total_flags & WPA_STA_MFP)
8232                 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP);
8233
8234         if (total_flags & WPA_STA_TDLS_PEER)
8235                 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER);
8236
8237         nla_nest_end(msg, flags);
8238
8239         os_memset(&upd, 0, sizeof(upd));
8240         upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
8241         upd.set = sta_flags_nl80211(flags_or);
8242         NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
8243
8244         return send_and_recv_msgs(drv, msg, NULL, NULL);
8245  nla_put_failure:
8246         nlmsg_free(msg);
8247         return -ENOBUFS;
8248 }
8249
8250
8251 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
8252                                  struct wpa_driver_associate_params *params)
8253 {
8254         enum nl80211_iftype nlmode, old_mode;
8255         struct hostapd_freq_params freq = {
8256                 .freq = params->freq,
8257         };
8258
8259         if (params->p2p) {
8260                 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
8261                            "group (GO)");
8262                 nlmode = NL80211_IFTYPE_P2P_GO;
8263         } else
8264                 nlmode = NL80211_IFTYPE_AP;
8265
8266         old_mode = drv->nlmode;
8267         if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) {
8268                 nl80211_remove_monitor_interface(drv);
8269                 return -1;
8270         }
8271
8272         if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) {
8273                 if (old_mode != nlmode)
8274                         wpa_driver_nl80211_set_mode(drv->first_bss, old_mode);
8275                 nl80211_remove_monitor_interface(drv);
8276                 return -1;
8277         }
8278
8279         return 0;
8280 }
8281
8282
8283 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
8284 {
8285         struct nl_msg *msg;
8286         int ret = -1;
8287
8288         msg = nlmsg_alloc();
8289         if (!msg)
8290                 return -1;
8291
8292         nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
8293         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8294         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8295         msg = NULL;
8296         if (ret) {
8297                 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
8298                            "(%s)", ret, strerror(-ret));
8299                 goto nla_put_failure;
8300         }
8301
8302         ret = 0;
8303         wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
8304
8305 nla_put_failure:
8306         if (wpa_driver_nl80211_set_mode(drv->first_bss,
8307                                         NL80211_IFTYPE_STATION)) {
8308                 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
8309                            "station mode");
8310         }
8311
8312         nlmsg_free(msg);
8313         return ret;
8314 }
8315
8316
8317 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
8318                                    struct wpa_driver_associate_params *params)
8319 {
8320         struct nl_msg *msg;
8321         int ret = -1;
8322         int count = 0;
8323
8324         wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
8325
8326         if (wpa_driver_nl80211_set_mode(drv->first_bss,
8327                                         NL80211_IFTYPE_ADHOC)) {
8328                 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
8329                            "IBSS mode");
8330                 return -1;
8331         }
8332
8333 retry:
8334         msg = nlmsg_alloc();
8335         if (!msg)
8336                 return -1;
8337
8338         nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
8339         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8340
8341         if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
8342                 goto nla_put_failure;
8343
8344         wpa_hexdump_ascii(MSG_DEBUG, "  * SSID",
8345                           params->ssid, params->ssid_len);
8346         NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
8347                 params->ssid);
8348         os_memcpy(drv->ssid, params->ssid, params->ssid_len);
8349         drv->ssid_len = params->ssid_len;
8350
8351         wpa_printf(MSG_DEBUG, "  * freq=%d", params->freq);
8352         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
8353
8354         ret = nl80211_set_conn_keys(params, msg);
8355         if (ret)
8356                 goto nla_put_failure;
8357
8358         if (params->bssid && params->fixed_bssid) {
8359                 wpa_printf(MSG_DEBUG, "  * BSSID=" MACSTR,
8360                            MAC2STR(params->bssid));
8361                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
8362         }
8363
8364         if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
8365             params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
8366             params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
8367             params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) {
8368                 wpa_printf(MSG_DEBUG, "  * control port");
8369                 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
8370         }
8371
8372         if (params->wpa_ie) {
8373                 wpa_hexdump(MSG_DEBUG,
8374                             "  * Extra IEs for Beacon/Probe Response frames",
8375                             params->wpa_ie, params->wpa_ie_len);
8376                 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
8377                         params->wpa_ie);
8378         }
8379
8380         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8381         msg = NULL;
8382         if (ret) {
8383                 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
8384                            ret, strerror(-ret));
8385                 count++;
8386                 if (ret == -EALREADY && count == 1) {
8387                         wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
8388                                    "forced leave");
8389                         nl80211_leave_ibss(drv);
8390                         nlmsg_free(msg);
8391                         goto retry;
8392                 }
8393
8394                 goto nla_put_failure;
8395         }
8396         ret = 0;
8397         wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
8398
8399 nla_put_failure:
8400         nlmsg_free(msg);
8401         return ret;
8402 }
8403
8404
8405 static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv,
8406                                   struct wpa_driver_associate_params *params,
8407                                   struct nl_msg *msg)
8408 {
8409         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8410
8411         if (params->bssid) {
8412                 wpa_printf(MSG_DEBUG, "  * bssid=" MACSTR,
8413                            MAC2STR(params->bssid));
8414                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
8415         }
8416
8417         if (params->bssid_hint) {
8418                 wpa_printf(MSG_DEBUG, "  * bssid_hint=" MACSTR,
8419                            MAC2STR(params->bssid_hint));
8420                 NLA_PUT(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN,
8421                         params->bssid_hint);
8422         }
8423
8424         if (params->freq) {
8425                 wpa_printf(MSG_DEBUG, "  * freq=%d", params->freq);
8426                 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
8427                 drv->assoc_freq = params->freq;
8428         } else
8429                 drv->assoc_freq = 0;
8430
8431         if (params->freq_hint) {
8432                 wpa_printf(MSG_DEBUG, "  * freq_hint=%d", params->freq_hint);
8433                 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ_HINT,
8434                             params->freq_hint);
8435         }
8436
8437         if (params->bg_scan_period >= 0) {
8438                 wpa_printf(MSG_DEBUG, "  * bg scan period=%d",
8439                            params->bg_scan_period);
8440                 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
8441                             params->bg_scan_period);
8442         }
8443
8444         if (params->ssid) {
8445                 wpa_hexdump_ascii(MSG_DEBUG, "  * SSID",
8446                                   params->ssid, params->ssid_len);
8447                 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
8448                         params->ssid);
8449                 if (params->ssid_len > sizeof(drv->ssid))
8450                         goto nla_put_failure;
8451                 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
8452                 drv->ssid_len = params->ssid_len;
8453         }
8454
8455         wpa_hexdump(MSG_DEBUG, "  * IEs", params->wpa_ie, params->wpa_ie_len);
8456         if (params->wpa_ie)
8457                 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
8458                         params->wpa_ie);
8459
8460         if (params->wpa_proto) {
8461                 enum nl80211_wpa_versions ver = 0;
8462
8463                 if (params->wpa_proto & WPA_PROTO_WPA)
8464                         ver |= NL80211_WPA_VERSION_1;
8465                 if (params->wpa_proto & WPA_PROTO_RSN)
8466                         ver |= NL80211_WPA_VERSION_2;
8467
8468                 wpa_printf(MSG_DEBUG, "  * WPA Versions 0x%x", ver);
8469                 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
8470         }
8471
8472         if (params->pairwise_suite != WPA_CIPHER_NONE) {
8473                 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite);
8474                 wpa_printf(MSG_DEBUG, "  * pairwise=0x%x", cipher);
8475                 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
8476         }
8477
8478         if (params->group_suite == WPA_CIPHER_GTK_NOT_USED &&
8479             !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) {
8480                 /*
8481                  * This is likely to work even though many drivers do not
8482                  * advertise support for operations without GTK.
8483                  */
8484                 wpa_printf(MSG_DEBUG, "  * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement");
8485         } else if (params->group_suite != WPA_CIPHER_NONE) {
8486                 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite);
8487                 wpa_printf(MSG_DEBUG, "  * group=0x%x", cipher);
8488                 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
8489         }
8490
8491         if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
8492             params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
8493             params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X ||
8494             params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK ||
8495             params->key_mgmt_suite == WPA_KEY_MGMT_CCKM) {
8496                 int mgmt = WLAN_AKM_SUITE_PSK;
8497
8498                 switch (params->key_mgmt_suite) {
8499                 case WPA_KEY_MGMT_CCKM:
8500                         mgmt = WLAN_AKM_SUITE_CCKM;
8501                         break;
8502                 case WPA_KEY_MGMT_IEEE8021X:
8503                         mgmt = WLAN_AKM_SUITE_8021X;
8504                         break;
8505                 case WPA_KEY_MGMT_FT_IEEE8021X:
8506                         mgmt = WLAN_AKM_SUITE_FT_8021X;
8507                         break;
8508                 case WPA_KEY_MGMT_FT_PSK:
8509                         mgmt = WLAN_AKM_SUITE_FT_PSK;
8510                         break;
8511                 case WPA_KEY_MGMT_PSK:
8512                 default:
8513                         mgmt = WLAN_AKM_SUITE_PSK;
8514                         break;
8515                 }
8516                 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
8517         }
8518
8519         NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
8520
8521         if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
8522                 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
8523
8524         if (params->disable_ht)
8525                 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
8526
8527         if (params->htcaps && params->htcaps_mask) {
8528                 int sz = sizeof(struct ieee80211_ht_capabilities);
8529                 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
8530                 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
8531                         params->htcaps_mask);
8532         }
8533
8534 #ifdef CONFIG_VHT_OVERRIDES
8535         if (params->disable_vht) {
8536                 wpa_printf(MSG_DEBUG, "  * VHT disabled");
8537                 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
8538         }
8539
8540         if (params->vhtcaps && params->vhtcaps_mask) {
8541                 int sz = sizeof(struct ieee80211_vht_capabilities);
8542                 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
8543                 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
8544                         params->vhtcaps_mask);
8545         }
8546 #endif /* CONFIG_VHT_OVERRIDES */
8547
8548         if (params->p2p)
8549                 wpa_printf(MSG_DEBUG, "  * P2P group");
8550
8551         return 0;
8552 nla_put_failure:
8553         return -1;
8554 }
8555
8556
8557 static int wpa_driver_nl80211_try_connect(
8558         struct wpa_driver_nl80211_data *drv,
8559         struct wpa_driver_associate_params *params)
8560 {
8561         struct nl_msg *msg;
8562         enum nl80211_auth_type type;
8563         int ret;
8564         int algs;
8565
8566         msg = nlmsg_alloc();
8567         if (!msg)
8568                 return -1;
8569
8570         wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
8571         nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
8572
8573         ret = nl80211_connect_common(drv, params, msg);
8574         if (ret)
8575                 goto nla_put_failure;
8576
8577         algs = 0;
8578         if (params->auth_alg & WPA_AUTH_ALG_OPEN)
8579                 algs++;
8580         if (params->auth_alg & WPA_AUTH_ALG_SHARED)
8581                 algs++;
8582         if (params->auth_alg & WPA_AUTH_ALG_LEAP)
8583                 algs++;
8584         if (algs > 1) {
8585                 wpa_printf(MSG_DEBUG, "  * Leave out Auth Type for automatic "
8586                            "selection");
8587                 goto skip_auth_type;
8588         }
8589
8590         if (params->auth_alg & WPA_AUTH_ALG_OPEN)
8591                 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
8592         else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
8593                 type = NL80211_AUTHTYPE_SHARED_KEY;
8594         else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
8595                 type = NL80211_AUTHTYPE_NETWORK_EAP;
8596         else if (params->auth_alg & WPA_AUTH_ALG_FT)
8597                 type = NL80211_AUTHTYPE_FT;
8598         else
8599                 goto nla_put_failure;
8600
8601         wpa_printf(MSG_DEBUG, "  * Auth Type %d", type);
8602         NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
8603
8604 skip_auth_type:
8605         ret = nl80211_set_conn_keys(params, msg);
8606         if (ret)
8607                 goto nla_put_failure;
8608
8609         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8610         msg = NULL;
8611         if (ret) {
8612                 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
8613                            "(%s)", ret, strerror(-ret));
8614                 goto nla_put_failure;
8615         }
8616         ret = 0;
8617         wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
8618
8619 nla_put_failure:
8620         nlmsg_free(msg);
8621         return ret;
8622
8623 }
8624
8625
8626 static int wpa_driver_nl80211_connect(
8627         struct wpa_driver_nl80211_data *drv,
8628         struct wpa_driver_associate_params *params)
8629 {
8630         int ret = wpa_driver_nl80211_try_connect(drv, params);
8631         if (ret == -EALREADY) {
8632                 /*
8633                  * cfg80211 does not currently accept new connections if
8634                  * we are already connected. As a workaround, force
8635                  * disconnection and try again.
8636                  */
8637                 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
8638                            "disconnecting before reassociation "
8639                            "attempt");
8640                 if (wpa_driver_nl80211_disconnect(
8641                             drv, WLAN_REASON_PREV_AUTH_NOT_VALID))
8642                         return -1;
8643                 ret = wpa_driver_nl80211_try_connect(drv, params);
8644         }
8645         return ret;
8646 }
8647
8648
8649 static int wpa_driver_nl80211_associate(
8650         void *priv, struct wpa_driver_associate_params *params)
8651 {
8652         struct i802_bss *bss = priv;
8653         struct wpa_driver_nl80211_data *drv = bss->drv;
8654         int ret;
8655         struct nl_msg *msg;
8656
8657         if (params->mode == IEEE80211_MODE_AP)
8658                 return wpa_driver_nl80211_ap(drv, params);
8659
8660         if (params->mode == IEEE80211_MODE_IBSS)
8661                 return wpa_driver_nl80211_ibss(drv, params);
8662
8663         if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
8664                 enum nl80211_iftype nlmode = params->p2p ?
8665                         NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
8666
8667                 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
8668                         return -1;
8669                 return wpa_driver_nl80211_connect(drv, params);
8670         }
8671
8672         nl80211_mark_disconnected(drv);
8673
8674         msg = nlmsg_alloc();
8675         if (!msg)
8676                 return -1;
8677
8678         wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
8679                    drv->ifindex);
8680         nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
8681
8682         ret = nl80211_connect_common(drv, params, msg);
8683         if (ret)
8684                 goto nla_put_failure;
8685
8686         if (params->prev_bssid) {
8687                 wpa_printf(MSG_DEBUG, "  * prev_bssid=" MACSTR,
8688                            MAC2STR(params->prev_bssid));
8689                 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
8690                         params->prev_bssid);
8691         }
8692
8693         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8694         msg = NULL;
8695         if (ret) {
8696                 wpa_dbg(drv->ctx, MSG_DEBUG,
8697                         "nl80211: MLME command failed (assoc): ret=%d (%s)",
8698                         ret, strerror(-ret));
8699                 nl80211_dump_scan(drv);
8700                 goto nla_put_failure;
8701         }
8702         ret = 0;
8703         wpa_printf(MSG_DEBUG, "nl80211: Association request send "
8704                    "successfully");
8705
8706 nla_put_failure:
8707         nlmsg_free(msg);
8708         return ret;
8709 }
8710
8711
8712 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
8713                             int ifindex, enum nl80211_iftype mode)
8714 {
8715         struct nl_msg *msg;
8716         int ret = -ENOBUFS;
8717
8718         wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
8719                    ifindex, mode, nl80211_iftype_str(mode));
8720
8721         msg = nlmsg_alloc();
8722         if (!msg)
8723                 return -ENOMEM;
8724
8725         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
8726         if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
8727                 goto nla_put_failure;
8728         NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
8729
8730         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8731         msg = NULL;
8732         if (!ret)
8733                 return 0;
8734 nla_put_failure:
8735         nlmsg_free(msg);
8736         wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
8737                    " %d (%s)", ifindex, mode, ret, strerror(-ret));
8738         return ret;
8739 }
8740
8741
8742 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
8743                                        enum nl80211_iftype nlmode)
8744 {
8745         struct wpa_driver_nl80211_data *drv = bss->drv;
8746         int ret = -1;
8747         int i;
8748         int was_ap = is_ap_interface(drv->nlmode);
8749         int res;
8750
8751         res = nl80211_set_mode(drv, drv->ifindex, nlmode);
8752         if (res && nlmode == nl80211_get_ifmode(bss))
8753                 res = 0;
8754
8755         if (res == 0) {
8756                 drv->nlmode = nlmode;
8757                 ret = 0;
8758                 goto done;
8759         }
8760
8761         if (res == -ENODEV)
8762                 return -1;
8763
8764         if (nlmode == drv->nlmode) {
8765                 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
8766                            "requested mode - ignore error");
8767                 ret = 0;
8768                 goto done; /* Already in the requested mode */
8769         }
8770
8771         /* mac80211 doesn't allow mode changes while the device is up, so
8772          * take the device down, try to set the mode again, and bring the
8773          * device back up.
8774          */
8775         wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
8776                    "interface down");
8777         for (i = 0; i < 10; i++) {
8778                 res = i802_set_iface_flags(bss, 0);
8779                 if (res == -EACCES || res == -ENODEV)
8780                         break;
8781                 if (res == 0) {
8782                         /* Try to set the mode again while the interface is
8783                          * down */
8784                         ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
8785                         if (ret == -EACCES)
8786                                 break;
8787                         res = i802_set_iface_flags(bss, 1);
8788                         if (res && !ret)
8789                                 ret = -1;
8790                         else if (ret != -EBUSY)
8791                                 break;
8792                 } else
8793                         wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
8794                                    "interface down");
8795                 os_sleep(0, 100000);
8796         }
8797
8798         if (!ret) {
8799                 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
8800                            "interface is down");
8801                 drv->nlmode = nlmode;
8802                 drv->ignore_if_down_event = 1;
8803         }
8804
8805 done:
8806         if (ret) {
8807                 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
8808                            "from %d failed", nlmode, drv->nlmode);
8809                 return ret;
8810         }
8811
8812         if (is_p2p_net_interface(nlmode))
8813                 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
8814         else if (drv->disabled_11b_rates)
8815                 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
8816
8817         if (is_ap_interface(nlmode)) {
8818                 nl80211_mgmt_unsubscribe(bss, "start AP");
8819                 /* Setup additional AP mode functionality if needed */
8820                 if (nl80211_setup_ap(bss))
8821                         return -1;
8822         } else if (was_ap) {
8823                 /* Remove additional AP mode functionality */
8824                 nl80211_teardown_ap(bss);
8825         } else {
8826                 nl80211_mgmt_unsubscribe(bss, "mode change");
8827         }
8828
8829         if (!bss->in_deinit && !is_ap_interface(nlmode) &&
8830             nl80211_mgmt_subscribe_non_ap(bss) < 0)
8831                 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
8832                            "frame processing - ignore for now");
8833
8834         return 0;
8835 }
8836
8837
8838 static int wpa_driver_nl80211_get_capa(void *priv,
8839                                        struct wpa_driver_capa *capa)
8840 {
8841         struct i802_bss *bss = priv;
8842         struct wpa_driver_nl80211_data *drv = bss->drv;
8843         if (!drv->has_capability)
8844                 return -1;
8845         os_memcpy(capa, &drv->capa, sizeof(*capa));
8846         if (drv->extended_capa && drv->extended_capa_mask) {
8847                 capa->extended_capa = drv->extended_capa;
8848                 capa->extended_capa_mask = drv->extended_capa_mask;
8849                 capa->extended_capa_len = drv->extended_capa_len;
8850         }
8851
8852         if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
8853             !drv->allow_p2p_device) {
8854                 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)");
8855                 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
8856         }
8857
8858         return 0;
8859 }
8860
8861
8862 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
8863 {
8864         struct i802_bss *bss = priv;
8865         struct wpa_driver_nl80211_data *drv = bss->drv;
8866
8867         wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)",
8868                    bss->ifname, drv->operstate, state,
8869                    state ? "UP" : "DORMANT");
8870         drv->operstate = state;
8871         return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
8872                                       state ? IF_OPER_UP : IF_OPER_DORMANT);
8873 }
8874
8875
8876 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
8877 {
8878         struct i802_bss *bss = priv;
8879         struct wpa_driver_nl80211_data *drv = bss->drv;
8880         struct nl_msg *msg;
8881         struct nl80211_sta_flag_update upd;
8882         int ret = -ENOBUFS;
8883
8884         if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) {
8885                 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated");
8886                 return 0;
8887         }
8888
8889         wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for "
8890                    MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid));
8891
8892         msg = nlmsg_alloc();
8893         if (!msg)
8894                 return -ENOMEM;
8895
8896         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
8897
8898         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
8899                     if_nametoindex(bss->ifname));
8900         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
8901
8902         os_memset(&upd, 0, sizeof(upd));
8903         upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
8904         if (authorized)
8905                 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
8906         NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
8907
8908         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8909         msg = NULL;
8910         if (!ret)
8911                 return 0;
8912  nla_put_failure:
8913         nlmsg_free(msg);
8914         wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)",
8915                    ret, strerror(-ret));
8916         return ret;
8917 }
8918
8919
8920 /* Set kernel driver on given frequency (MHz) */
8921 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
8922 {
8923         struct i802_bss *bss = priv;
8924         return wpa_driver_nl80211_set_freq(bss, freq);
8925 }
8926
8927
8928 static inline int min_int(int a, int b)
8929 {
8930         if (a < b)
8931                 return a;
8932         return b;
8933 }
8934
8935
8936 static int get_key_handler(struct nl_msg *msg, void *arg)
8937 {
8938         struct nlattr *tb[NL80211_ATTR_MAX + 1];
8939         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8940
8941         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8942                   genlmsg_attrlen(gnlh, 0), NULL);
8943
8944         /*
8945          * TODO: validate the key index and mac address!
8946          * Otherwise, there's a race condition as soon as
8947          * the kernel starts sending key notifications.
8948          */
8949
8950         if (tb[NL80211_ATTR_KEY_SEQ])
8951                 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
8952                        min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
8953         return NL_SKIP;
8954 }
8955
8956
8957 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
8958                            int idx, u8 *seq)
8959 {
8960         struct i802_bss *bss = priv;
8961         struct wpa_driver_nl80211_data *drv = bss->drv;
8962         struct nl_msg *msg;
8963
8964         msg = nlmsg_alloc();
8965         if (!msg)
8966                 return -ENOMEM;
8967
8968         nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
8969
8970         if (addr)
8971                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8972         NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
8973         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
8974
8975         memset(seq, 0, 6);
8976
8977         return send_and_recv_msgs(drv, msg, get_key_handler, seq);
8978  nla_put_failure:
8979         nlmsg_free(msg);
8980         return -ENOBUFS;
8981 }
8982
8983
8984 static int i802_set_rts(void *priv, int rts)
8985 {
8986         struct i802_bss *bss = priv;
8987         struct wpa_driver_nl80211_data *drv = bss->drv;
8988         struct nl_msg *msg;
8989         int ret = -ENOBUFS;
8990         u32 val;
8991
8992         msg = nlmsg_alloc();
8993         if (!msg)
8994                 return -ENOMEM;
8995
8996         if (rts >= 2347)
8997                 val = (u32) -1;
8998         else
8999                 val = rts;
9000
9001         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
9002         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
9003         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
9004
9005         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9006         msg = NULL;
9007         if (!ret)
9008                 return 0;
9009 nla_put_failure:
9010         nlmsg_free(msg);
9011         wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
9012                    "%d (%s)", rts, ret, strerror(-ret));
9013         return ret;
9014 }
9015
9016
9017 static int i802_set_frag(void *priv, int frag)
9018 {
9019         struct i802_bss *bss = priv;
9020         struct wpa_driver_nl80211_data *drv = bss->drv;
9021         struct nl_msg *msg;
9022         int ret = -ENOBUFS;
9023         u32 val;
9024
9025         msg = nlmsg_alloc();
9026         if (!msg)
9027                 return -ENOMEM;
9028
9029         if (frag >= 2346)
9030                 val = (u32) -1;
9031         else
9032                 val = frag;
9033
9034         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
9035         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
9036         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
9037
9038         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9039         msg = NULL;
9040         if (!ret)
9041                 return 0;
9042 nla_put_failure:
9043         nlmsg_free(msg);
9044         wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
9045                    "%d: %d (%s)", frag, ret, strerror(-ret));
9046         return ret;
9047 }
9048
9049
9050 static int i802_flush(void *priv)
9051 {
9052         struct i802_bss *bss = priv;
9053         struct wpa_driver_nl80211_data *drv = bss->drv;
9054         struct nl_msg *msg;
9055         int res;
9056
9057         msg = nlmsg_alloc();
9058         if (!msg)
9059                 return -1;
9060
9061         wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)",
9062                    bss->ifname);
9063         nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
9064
9065         /*
9066          * XXX: FIX! this needs to flush all VLANs too
9067          */
9068         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
9069                     if_nametoindex(bss->ifname));
9070
9071         res = send_and_recv_msgs(drv, msg, NULL, NULL);
9072         if (res) {
9073                 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
9074                            "(%s)", res, strerror(-res));
9075         }
9076         return res;
9077  nla_put_failure:
9078         nlmsg_free(msg);
9079         return -ENOBUFS;
9080 }
9081
9082
9083 static int get_sta_handler(struct nl_msg *msg, void *arg)
9084 {
9085         struct nlattr *tb[NL80211_ATTR_MAX + 1];
9086         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9087         struct hostap_sta_driver_data *data = arg;
9088         struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
9089         static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
9090                 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
9091                 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
9092                 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
9093                 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
9094                 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
9095                 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
9096         };
9097
9098         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9099                   genlmsg_attrlen(gnlh, 0), NULL);
9100
9101         /*
9102          * TODO: validate the interface and mac address!
9103          * Otherwise, there's a race condition as soon as
9104          * the kernel starts sending station notifications.
9105          */
9106
9107         if (!tb[NL80211_ATTR_STA_INFO]) {
9108                 wpa_printf(MSG_DEBUG, "sta stats missing!");
9109                 return NL_SKIP;
9110         }
9111         if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
9112                              tb[NL80211_ATTR_STA_INFO],
9113                              stats_policy)) {
9114                 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
9115                 return NL_SKIP;
9116         }
9117
9118         if (stats[NL80211_STA_INFO_INACTIVE_TIME])
9119                 data->inactive_msec =
9120                         nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
9121         if (stats[NL80211_STA_INFO_RX_BYTES])
9122                 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
9123         if (stats[NL80211_STA_INFO_TX_BYTES])
9124                 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
9125         if (stats[NL80211_STA_INFO_RX_PACKETS])
9126                 data->rx_packets =
9127                         nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
9128         if (stats[NL80211_STA_INFO_TX_PACKETS])
9129                 data->tx_packets =
9130                         nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
9131         if (stats[NL80211_STA_INFO_TX_FAILED])
9132                 data->tx_retry_failed =
9133                         nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
9134
9135         return NL_SKIP;
9136 }
9137
9138 static int i802_read_sta_data(struct i802_bss *bss,
9139                               struct hostap_sta_driver_data *data,
9140                               const u8 *addr)
9141 {
9142         struct wpa_driver_nl80211_data *drv = bss->drv;
9143         struct nl_msg *msg;
9144
9145         os_memset(data, 0, sizeof(*data));
9146         msg = nlmsg_alloc();
9147         if (!msg)
9148                 return -ENOMEM;
9149
9150         nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
9151
9152         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
9153         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
9154
9155         return send_and_recv_msgs(drv, msg, get_sta_handler, data);
9156  nla_put_failure:
9157         nlmsg_free(msg);
9158         return -ENOBUFS;
9159 }
9160
9161
9162 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
9163                                     int cw_min, int cw_max, int burst_time)
9164 {
9165         struct i802_bss *bss = priv;
9166         struct wpa_driver_nl80211_data *drv = bss->drv;
9167         struct nl_msg *msg;
9168         struct nlattr *txq, *params;
9169
9170         msg = nlmsg_alloc();
9171         if (!msg)
9172                 return -1;
9173
9174         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
9175
9176         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
9177
9178         txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
9179         if (!txq)
9180                 goto nla_put_failure;
9181
9182         /* We are only sending parameters for a single TXQ at a time */
9183         params = nla_nest_start(msg, 1);
9184         if (!params)
9185                 goto nla_put_failure;
9186
9187         switch (queue) {
9188         case 0:
9189                 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
9190                 break;
9191         case 1:
9192                 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
9193                 break;
9194         case 2:
9195                 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
9196                 break;
9197         case 3:
9198                 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
9199                 break;
9200         }
9201         /* Burst time is configured in units of 0.1 msec and TXOP parameter in
9202          * 32 usec, so need to convert the value here. */
9203         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
9204         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
9205         NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
9206         NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
9207
9208         nla_nest_end(msg, params);
9209
9210         nla_nest_end(msg, txq);
9211
9212         if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
9213                 return 0;
9214         msg = NULL;
9215  nla_put_failure:
9216         nlmsg_free(msg);
9217         return -1;
9218 }
9219
9220
9221 static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr,
9222                              const char *ifname, int vlan_id)
9223 {
9224         struct wpa_driver_nl80211_data *drv = bss->drv;
9225         struct nl_msg *msg;
9226         int ret = -ENOBUFS;
9227
9228         msg = nlmsg_alloc();
9229         if (!msg)
9230                 return -ENOMEM;
9231
9232         wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR
9233                    ", ifname=%s[%d], vlan_id=%d)",
9234                    bss->ifname, if_nametoindex(bss->ifname),
9235                    MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id);
9236         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
9237
9238         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
9239                     if_nametoindex(bss->ifname));
9240         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
9241         NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
9242                     if_nametoindex(ifname));
9243
9244         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9245         msg = NULL;
9246         if (ret < 0) {
9247                 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
9248                            MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
9249                            MAC2STR(addr), ifname, vlan_id, ret,
9250                            strerror(-ret));
9251         }
9252  nla_put_failure:
9253         nlmsg_free(msg);
9254         return ret;
9255 }
9256
9257
9258 static int i802_get_inact_sec(void *priv, const u8 *addr)
9259 {
9260         struct hostap_sta_driver_data data;
9261         int ret;
9262
9263         data.inactive_msec = (unsigned long) -1;
9264         ret = i802_read_sta_data(priv, &data, addr);
9265         if (ret || data.inactive_msec == (unsigned long) -1)
9266                 return -1;
9267         return data.inactive_msec / 1000;
9268 }
9269
9270
9271 static int i802_sta_clear_stats(void *priv, const u8 *addr)
9272 {
9273 #if 0
9274         /* TODO */
9275 #endif
9276         return 0;
9277 }
9278
9279
9280 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
9281                            int reason)
9282 {
9283         struct i802_bss *bss = priv;
9284         struct wpa_driver_nl80211_data *drv = bss->drv;
9285         struct ieee80211_mgmt mgmt;
9286
9287         if (drv->device_ap_sme)
9288                 return wpa_driver_nl80211_sta_remove(bss, addr);
9289
9290         memset(&mgmt, 0, sizeof(mgmt));
9291         mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
9292                                           WLAN_FC_STYPE_DEAUTH);
9293         memcpy(mgmt.da, addr, ETH_ALEN);
9294         memcpy(mgmt.sa, own_addr, ETH_ALEN);
9295         memcpy(mgmt.bssid, own_addr, ETH_ALEN);
9296         mgmt.u.deauth.reason_code = host_to_le16(reason);
9297         return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9298                                             IEEE80211_HDRLEN +
9299                                             sizeof(mgmt.u.deauth), 0, 0, 0, 0,
9300                                             0);
9301 }
9302
9303
9304 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
9305                              int reason)
9306 {
9307         struct i802_bss *bss = priv;
9308         struct wpa_driver_nl80211_data *drv = bss->drv;
9309         struct ieee80211_mgmt mgmt;
9310
9311         if (drv->device_ap_sme)
9312                 return wpa_driver_nl80211_sta_remove(bss, addr);
9313
9314         memset(&mgmt, 0, sizeof(mgmt));
9315         mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
9316                                           WLAN_FC_STYPE_DISASSOC);
9317         memcpy(mgmt.da, addr, ETH_ALEN);
9318         memcpy(mgmt.sa, own_addr, ETH_ALEN);
9319         memcpy(mgmt.bssid, own_addr, ETH_ALEN);
9320         mgmt.u.disassoc.reason_code = host_to_le16(reason);
9321         return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9322                                             IEEE80211_HDRLEN +
9323                                             sizeof(mgmt.u.disassoc), 0, 0, 0, 0,
9324                                             0);
9325 }
9326
9327
9328 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
9329 {
9330         int i;
9331         int *old;
9332
9333         wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
9334                    ifidx);
9335         for (i = 0; i < drv->num_if_indices; i++) {
9336                 if (drv->if_indices[i] == 0) {
9337                         drv->if_indices[i] = ifidx;
9338                         return;
9339                 }
9340         }
9341
9342         if (drv->if_indices != drv->default_if_indices)
9343                 old = drv->if_indices;
9344         else
9345                 old = NULL;
9346
9347         drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
9348                                            sizeof(int));
9349         if (!drv->if_indices) {
9350                 if (!old)
9351                         drv->if_indices = drv->default_if_indices;
9352                 else
9353                         drv->if_indices = old;
9354                 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
9355                            "interfaces");
9356                 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
9357                 return;
9358         } else if (!old)
9359                 os_memcpy(drv->if_indices, drv->default_if_indices,
9360                           sizeof(drv->default_if_indices));
9361         drv->if_indices[drv->num_if_indices] = ifidx;
9362         drv->num_if_indices++;
9363 }
9364
9365
9366 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
9367 {
9368         int i;
9369
9370         for (i = 0; i < drv->num_if_indices; i++) {
9371                 if (drv->if_indices[i] == ifidx) {
9372                         drv->if_indices[i] = 0;
9373                         break;
9374                 }
9375         }
9376 }
9377
9378
9379 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
9380 {
9381         int i;
9382
9383         for (i = 0; i < drv->num_if_indices; i++)
9384                 if (drv->if_indices[i] == ifidx)
9385                         return 1;
9386
9387         return 0;
9388 }
9389
9390
9391 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
9392                             const char *bridge_ifname, char *ifname_wds)
9393 {
9394         struct i802_bss *bss = priv;
9395         struct wpa_driver_nl80211_data *drv = bss->drv;
9396         char name[IFNAMSIZ + 1];
9397
9398         os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
9399         if (ifname_wds)
9400                 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1);
9401
9402         wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
9403                    " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
9404         if (val) {
9405                 if (!if_nametoindex(name)) {
9406                         if (nl80211_create_iface(drv, name,
9407                                                  NL80211_IFTYPE_AP_VLAN,
9408                                                  bss->addr, 1, NULL, NULL, 0) <
9409                             0)
9410                                 return -1;
9411                         if (bridge_ifname &&
9412                             linux_br_add_if(drv->global->ioctl_sock,
9413                                             bridge_ifname, name) < 0)
9414                                 return -1;
9415                 }
9416                 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
9417                         wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
9418                                    "interface %s up", name);
9419                 }
9420                 return i802_set_sta_vlan(priv, addr, name, 0);
9421         } else {
9422                 if (bridge_ifname)
9423                         linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
9424                                         name);
9425
9426                 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
9427                 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
9428                                                     name);
9429         }
9430 }
9431
9432
9433 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
9434 {
9435         struct wpa_driver_nl80211_data *drv = eloop_ctx;
9436         struct sockaddr_ll lladdr;
9437         unsigned char buf[3000];
9438         int len;
9439         socklen_t fromlen = sizeof(lladdr);
9440
9441         len = recvfrom(sock, buf, sizeof(buf), 0,
9442                        (struct sockaddr *)&lladdr, &fromlen);
9443         if (len < 0) {
9444                 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s",
9445                            strerror(errno));
9446                 return;
9447         }
9448
9449         if (have_ifidx(drv, lladdr.sll_ifindex))
9450                 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
9451 }
9452
9453
9454 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
9455                              struct i802_bss *bss,
9456                              const char *brname, const char *ifname)
9457 {
9458         int ifindex;
9459         char in_br[IFNAMSIZ];
9460
9461         os_strlcpy(bss->brname, brname, IFNAMSIZ);
9462         ifindex = if_nametoindex(brname);
9463         if (ifindex == 0) {
9464                 /*
9465                  * Bridge was configured, but the bridge device does
9466                  * not exist. Try to add it now.
9467                  */
9468                 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
9469                         wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
9470                                    "bridge interface %s: %s",
9471                                    brname, strerror(errno));
9472                         return -1;
9473                 }
9474                 bss->added_bridge = 1;
9475                 add_ifidx(drv, if_nametoindex(brname));
9476         }
9477
9478         if (linux_br_get(in_br, ifname) == 0) {
9479                 if (os_strcmp(in_br, brname) == 0)
9480                         return 0; /* already in the bridge */
9481
9482                 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
9483                            "bridge %s", ifname, in_br);
9484                 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
9485                     0) {
9486                         wpa_printf(MSG_ERROR, "nl80211: Failed to "
9487                                    "remove interface %s from bridge "
9488                                    "%s: %s",
9489                                    ifname, brname, strerror(errno));
9490                         return -1;
9491                 }
9492         }
9493
9494         wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
9495                    ifname, brname);
9496         if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
9497                 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
9498                            "into bridge %s: %s",
9499                            ifname, brname, strerror(errno));
9500                 return -1;
9501         }
9502         bss->added_if_into_bridge = 1;
9503
9504         return 0;
9505 }
9506
9507
9508 static void *i802_init(struct hostapd_data *hapd,
9509                        struct wpa_init_params *params)
9510 {
9511         struct wpa_driver_nl80211_data *drv;
9512         struct i802_bss *bss;
9513         size_t i;
9514         char brname[IFNAMSIZ];
9515         int ifindex, br_ifindex;
9516         int br_added = 0;
9517
9518         bss = wpa_driver_nl80211_drv_init(hapd, params->ifname,
9519                                           params->global_priv, 1,
9520                                           params->bssid);
9521         if (bss == NULL)
9522                 return NULL;
9523
9524         drv = bss->drv;
9525
9526         if (linux_br_get(brname, params->ifname) == 0) {
9527                 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
9528                            params->ifname, brname);
9529                 br_ifindex = if_nametoindex(brname);
9530         } else {
9531                 brname[0] = '\0';
9532                 br_ifindex = 0;
9533         }
9534
9535         for (i = 0; i < params->num_bridge; i++) {
9536                 if (params->bridge[i]) {
9537                         ifindex = if_nametoindex(params->bridge[i]);
9538                         if (ifindex)
9539                                 add_ifidx(drv, ifindex);
9540                         if (ifindex == br_ifindex)
9541                                 br_added = 1;
9542                 }
9543         }
9544         if (!br_added && br_ifindex &&
9545             (params->num_bridge == 0 || !params->bridge[0]))
9546                 add_ifidx(drv, br_ifindex);
9547
9548         /* start listening for EAPOL on the default AP interface */
9549         add_ifidx(drv, drv->ifindex);
9550
9551         if (params->num_bridge && params->bridge[0] &&
9552             i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
9553                 goto failed;
9554
9555         drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
9556         if (drv->eapol_sock < 0) {
9557                 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s",
9558                            strerror(errno));
9559                 goto failed;
9560         }
9561
9562         if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
9563         {
9564                 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol");
9565                 goto failed;
9566         }
9567
9568         if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
9569                                params->own_addr))
9570                 goto failed;
9571
9572         memcpy(bss->addr, params->own_addr, ETH_ALEN);
9573
9574         return bss;
9575
9576 failed:
9577         wpa_driver_nl80211_deinit(bss);
9578         return NULL;
9579 }
9580
9581
9582 static void i802_deinit(void *priv)
9583 {
9584         struct i802_bss *bss = priv;
9585         wpa_driver_nl80211_deinit(bss);
9586 }
9587
9588
9589 static enum nl80211_iftype wpa_driver_nl80211_if_type(
9590         enum wpa_driver_if_type type)
9591 {
9592         switch (type) {
9593         case WPA_IF_STATION:
9594                 return NL80211_IFTYPE_STATION;
9595         case WPA_IF_P2P_CLIENT:
9596         case WPA_IF_P2P_GROUP:
9597                 return NL80211_IFTYPE_P2P_CLIENT;
9598         case WPA_IF_AP_VLAN:
9599                 return NL80211_IFTYPE_AP_VLAN;
9600         case WPA_IF_AP_BSS:
9601                 return NL80211_IFTYPE_AP;
9602         case WPA_IF_P2P_GO:
9603                 return NL80211_IFTYPE_P2P_GO;
9604         case WPA_IF_P2P_DEVICE:
9605                 return NL80211_IFTYPE_P2P_DEVICE;
9606         }
9607         return -1;
9608 }
9609
9610
9611 #ifdef CONFIG_P2P
9612
9613 static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
9614 {
9615         struct wpa_driver_nl80211_data *drv;
9616         dl_list_for_each(drv, &global->interfaces,
9617                          struct wpa_driver_nl80211_data, list) {
9618                 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0)
9619                         return 1;
9620         }
9621         return 0;
9622 }
9623
9624
9625 static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
9626                                       u8 *new_addr)
9627 {
9628         unsigned int idx;
9629
9630         if (!drv->global)
9631                 return -1;
9632
9633         os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN);
9634         for (idx = 0; idx < 64; idx++) {
9635                 new_addr[0] = drv->first_bss->addr[0] | 0x02;
9636                 new_addr[0] ^= idx << 2;
9637                 if (!nl80211_addr_in_use(drv->global, new_addr))
9638                         break;
9639         }
9640         if (idx == 64)
9641                 return -1;
9642
9643         wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
9644                    MACSTR, MAC2STR(new_addr));
9645
9646         return 0;
9647 }
9648
9649 #endif /* CONFIG_P2P */
9650
9651
9652 struct wdev_info {
9653         u64 wdev_id;
9654         int wdev_id_set;
9655         u8 macaddr[ETH_ALEN];
9656 };
9657
9658 static int nl80211_wdev_handler(struct nl_msg *msg, void *arg)
9659 {
9660         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9661         struct nlattr *tb[NL80211_ATTR_MAX + 1];
9662         struct wdev_info *wi = arg;
9663
9664         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9665                   genlmsg_attrlen(gnlh, 0), NULL);
9666         if (tb[NL80211_ATTR_WDEV]) {
9667                 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
9668                 wi->wdev_id_set = 1;
9669         }
9670
9671         if (tb[NL80211_ATTR_MAC])
9672                 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
9673                           ETH_ALEN);
9674
9675         return NL_SKIP;
9676 }
9677
9678
9679 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
9680                                      const char *ifname, const u8 *addr,
9681                                      void *bss_ctx, void **drv_priv,
9682                                      char *force_ifname, u8 *if_addr,
9683                                      const char *bridge, int use_existing)
9684 {
9685         enum nl80211_iftype nlmode;
9686         struct i802_bss *bss = priv;
9687         struct wpa_driver_nl80211_data *drv = bss->drv;
9688         int ifidx;
9689         int added = 1;
9690
9691         if (addr)
9692                 os_memcpy(if_addr, addr, ETH_ALEN);
9693         nlmode = wpa_driver_nl80211_if_type(type);
9694         if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
9695                 struct wdev_info p2pdev_info;
9696
9697                 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info));
9698                 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
9699                                              0, nl80211_wdev_handler,
9700                                              &p2pdev_info, use_existing);
9701                 if (!p2pdev_info.wdev_id_set || ifidx != 0) {
9702                         wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s",
9703                                    ifname);
9704                         return -1;
9705                 }
9706
9707                 drv->global->if_add_wdevid = p2pdev_info.wdev_id;
9708                 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set;
9709                 if (!is_zero_ether_addr(p2pdev_info.macaddr))
9710                         os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN);
9711                 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created",
9712                            ifname,
9713                            (long long unsigned int) p2pdev_info.wdev_id);
9714         } else {
9715                 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
9716                                              0, NULL, NULL, use_existing);
9717                 if (use_existing && ifidx == -ENFILE) {
9718                         added = 0;
9719                         ifidx = if_nametoindex(ifname);
9720                 } else if (ifidx < 0) {
9721                         return -1;
9722                 }
9723         }
9724
9725         if (!addr) {
9726                 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
9727                         os_memcpy(if_addr, bss->addr, ETH_ALEN);
9728                 else if (linux_get_ifhwaddr(drv->global->ioctl_sock,
9729                                             bss->ifname, if_addr) < 0) {
9730                         if (added)
9731                                 nl80211_remove_iface(drv, ifidx);
9732                         return -1;
9733                 }
9734         }
9735
9736 #ifdef CONFIG_P2P
9737         if (!addr &&
9738             (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
9739              type == WPA_IF_P2P_GO)) {
9740                 /* Enforce unique P2P Interface Address */
9741                 u8 new_addr[ETH_ALEN];
9742
9743                 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
9744                                        new_addr) < 0) {
9745                         nl80211_remove_iface(drv, ifidx);
9746                         return -1;
9747                 }
9748                 if (nl80211_addr_in_use(drv->global, new_addr)) {
9749                         wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
9750                                    "for P2P group interface");
9751                         if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
9752                                 nl80211_remove_iface(drv, ifidx);
9753                                 return -1;
9754                         }
9755                         if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
9756                                                new_addr) < 0) {
9757                                 nl80211_remove_iface(drv, ifidx);
9758                                 return -1;
9759                         }
9760                 }
9761                 os_memcpy(if_addr, new_addr, ETH_ALEN);
9762         }
9763 #endif /* CONFIG_P2P */
9764
9765         if (type == WPA_IF_AP_BSS) {
9766                 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss));
9767                 if (new_bss == NULL) {
9768                         if (added)
9769                                 nl80211_remove_iface(drv, ifidx);
9770                         return -1;
9771                 }
9772
9773                 if (bridge &&
9774                     i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
9775                         wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
9776                                    "interface %s to a bridge %s",
9777                                    ifname, bridge);
9778                         if (added)
9779                                 nl80211_remove_iface(drv, ifidx);
9780                         os_free(new_bss);
9781                         return -1;
9782                 }
9783
9784                 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
9785                 {
9786                         nl80211_remove_iface(drv, ifidx);
9787                         os_free(new_bss);
9788                         return -1;
9789                 }
9790                 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
9791                 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
9792                 new_bss->ifindex = ifidx;
9793                 new_bss->drv = drv;
9794                 new_bss->next = drv->first_bss->next;
9795                 new_bss->freq = drv->first_bss->freq;
9796                 new_bss->ctx = bss_ctx;
9797                 new_bss->added_if = added;
9798                 drv->first_bss->next = new_bss;
9799                 if (drv_priv)
9800                         *drv_priv = new_bss;
9801                 nl80211_init_bss(new_bss);
9802
9803                 /* Subscribe management frames for this WPA_IF_AP_BSS */
9804                 if (nl80211_setup_ap(new_bss))
9805                         return -1;
9806         }
9807
9808         if (drv->global)
9809                 drv->global->if_add_ifindex = ifidx;
9810
9811         return 0;
9812 }
9813
9814
9815 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
9816                                         enum wpa_driver_if_type type,
9817                                         const char *ifname)
9818 {
9819         struct wpa_driver_nl80211_data *drv = bss->drv;
9820         int ifindex = if_nametoindex(ifname);
9821
9822         wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d",
9823                    __func__, type, ifname, ifindex, bss->added_if);
9824         if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex))
9825                 nl80211_remove_iface(drv, ifindex);
9826
9827         if (type != WPA_IF_AP_BSS)
9828                 return 0;
9829
9830         if (bss->added_if_into_bridge) {
9831                 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
9832                                     bss->ifname) < 0)
9833                         wpa_printf(MSG_INFO, "nl80211: Failed to remove "
9834                                    "interface %s from bridge %s: %s",
9835                                    bss->ifname, bss->brname, strerror(errno));
9836         }
9837         if (bss->added_bridge) {
9838                 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
9839                         wpa_printf(MSG_INFO, "nl80211: Failed to remove "
9840                                    "bridge %s: %s",
9841                                    bss->brname, strerror(errno));
9842         }
9843
9844         if (bss != drv->first_bss) {
9845                 struct i802_bss *tbss;
9846
9847                 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it");
9848                 for (tbss = drv->first_bss; tbss; tbss = tbss->next) {
9849                         if (tbss->next == bss) {
9850                                 tbss->next = bss->next;
9851                                 /* Unsubscribe management frames */
9852                                 nl80211_teardown_ap(bss);
9853                                 nl80211_destroy_bss(bss);
9854                                 os_free(bss);
9855                                 bss = NULL;
9856                                 break;
9857                         }
9858                 }
9859                 if (bss)
9860                         wpa_printf(MSG_INFO, "nl80211: %s - could not find "
9861                                    "BSS %p in the list", __func__, bss);
9862         } else {
9863                 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context");
9864                 nl80211_teardown_ap(bss);
9865                 if (!bss->added_if && !drv->first_bss->next)
9866                         wpa_driver_nl80211_del_beacon(drv);
9867                 nl80211_destroy_bss(bss);
9868                 if (!bss->added_if)
9869                         i802_set_iface_flags(bss, 0);
9870                 if (drv->first_bss->next) {
9871                         drv->first_bss = drv->first_bss->next;
9872                         drv->ctx = drv->first_bss->ctx;
9873                         os_free(bss);
9874                 } else {
9875                         wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to");
9876                 }
9877         }
9878
9879         return 0;
9880 }
9881
9882
9883 static int cookie_handler(struct nl_msg *msg, void *arg)
9884 {
9885         struct nlattr *tb[NL80211_ATTR_MAX + 1];
9886         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9887         u64 *cookie = arg;
9888         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9889                   genlmsg_attrlen(gnlh, 0), NULL);
9890         if (tb[NL80211_ATTR_COOKIE])
9891                 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
9892         return NL_SKIP;
9893 }
9894
9895
9896 static int nl80211_send_frame_cmd(struct i802_bss *bss,
9897                                   unsigned int freq, unsigned int wait,
9898                                   const u8 *buf, size_t buf_len,
9899                                   u64 *cookie_out, int no_cck, int no_ack,
9900                                   int offchanok)
9901 {
9902         struct wpa_driver_nl80211_data *drv = bss->drv;
9903         struct nl_msg *msg;
9904         u64 cookie;
9905         int ret = -1;
9906
9907         msg = nlmsg_alloc();
9908         if (!msg)
9909                 return -1;
9910
9911         wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
9912                    "no_ack=%d offchanok=%d",
9913                    freq, wait, no_cck, no_ack, offchanok);
9914         wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len);
9915         nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9916
9917         if (nl80211_set_iface_id(msg, bss) < 0)
9918                 goto nla_put_failure;
9919         if (freq)
9920                 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9921         if (wait)
9922                 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
9923         if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
9924                 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
9925         if (no_cck)
9926                 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
9927         if (no_ack)
9928                 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
9929
9930         NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
9931
9932         cookie = 0;
9933         ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
9934         msg = NULL;
9935         if (ret) {
9936                 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
9937                            "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
9938                            freq, wait);
9939                 goto nla_put_failure;
9940         }
9941         wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; "
9942                    "cookie 0x%llx", no_ack ? " (no ACK)" : "",
9943                    (long long unsigned int) cookie);
9944
9945         if (cookie_out)
9946                 *cookie_out = no_ack ? (u64) -1 : cookie;
9947
9948 nla_put_failure:
9949         nlmsg_free(msg);
9950         return ret;
9951 }
9952
9953
9954 static int wpa_driver_nl80211_send_action(struct i802_bss *bss,
9955                                           unsigned int freq,
9956                                           unsigned int wait_time,
9957                                           const u8 *dst, const u8 *src,
9958                                           const u8 *bssid,
9959                                           const u8 *data, size_t data_len,
9960                                           int no_cck)
9961 {
9962         struct wpa_driver_nl80211_data *drv = bss->drv;
9963         int ret = -1;
9964         u8 *buf;
9965         struct ieee80211_hdr *hdr;
9966
9967         wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
9968                    "freq=%u MHz wait=%d ms no_cck=%d)",
9969                    drv->ifindex, freq, wait_time, no_cck);
9970
9971         buf = os_zalloc(24 + data_len);
9972         if (buf == NULL)
9973                 return ret;
9974         os_memcpy(buf + 24, data, data_len);
9975         hdr = (struct ieee80211_hdr *) buf;
9976         hdr->frame_control =
9977                 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
9978         os_memcpy(hdr->addr1, dst, ETH_ALEN);
9979         os_memcpy(hdr->addr2, src, ETH_ALEN);
9980         os_memcpy(hdr->addr3, bssid, ETH_ALEN);
9981
9982         if (is_ap_interface(drv->nlmode) &&
9983             (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
9984              (int) freq == bss->freq || drv->device_ap_sme ||
9985              !drv->use_monitor))
9986                 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len,
9987                                                    0, freq, no_cck, 1,
9988                                                    wait_time);
9989         else
9990                 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
9991                                              24 + data_len,
9992                                              &drv->send_action_cookie,
9993                                              no_cck, 0, 1);
9994
9995         os_free(buf);
9996         return ret;
9997 }
9998
9999
10000 static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
10001 {
10002         struct i802_bss *bss = priv;
10003         struct wpa_driver_nl80211_data *drv = bss->drv;
10004         struct nl_msg *msg;
10005         int ret;
10006
10007         msg = nlmsg_alloc();
10008         if (!msg)
10009                 return;
10010
10011         wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx",
10012                    (long long unsigned int) drv->send_action_cookie);
10013         nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
10014
10015         if (nl80211_set_iface_id(msg, bss) < 0)
10016                 goto nla_put_failure;
10017         NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
10018
10019         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10020         msg = NULL;
10021         if (ret)
10022                 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
10023                            "(%s)", ret, strerror(-ret));
10024
10025  nla_put_failure:
10026         nlmsg_free(msg);
10027 }
10028
10029
10030 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
10031                                                 unsigned int duration)
10032 {
10033         struct i802_bss *bss = priv;
10034         struct wpa_driver_nl80211_data *drv = bss->drv;
10035         struct nl_msg *msg;
10036         int ret;
10037         u64 cookie;
10038
10039         msg = nlmsg_alloc();
10040         if (!msg)
10041                 return -1;
10042
10043         nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
10044
10045         if (nl80211_set_iface_id(msg, bss) < 0)
10046                 goto nla_put_failure;
10047
10048         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
10049         NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
10050
10051         cookie = 0;
10052         ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
10053         msg = NULL;
10054         if (ret == 0) {
10055                 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
10056                            "0x%llx for freq=%u MHz duration=%u",
10057                            (long long unsigned int) cookie, freq, duration);
10058                 drv->remain_on_chan_cookie = cookie;
10059                 drv->pending_remain_on_chan = 1;
10060                 return 0;
10061         }
10062         wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
10063                    "(freq=%d duration=%u): %d (%s)",
10064                    freq, duration, ret, strerror(-ret));
10065 nla_put_failure:
10066         nlmsg_free(msg);
10067         return -1;
10068 }
10069
10070
10071 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
10072 {
10073         struct i802_bss *bss = priv;
10074         struct wpa_driver_nl80211_data *drv = bss->drv;
10075         struct nl_msg *msg;
10076         int ret;
10077
10078         if (!drv->pending_remain_on_chan) {
10079                 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
10080                            "to cancel");
10081                 return -1;
10082         }
10083
10084         wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
10085                    "0x%llx",
10086                    (long long unsigned int) drv->remain_on_chan_cookie);
10087
10088         msg = nlmsg_alloc();
10089         if (!msg)
10090                 return -1;
10091
10092         nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
10093
10094         if (nl80211_set_iface_id(msg, bss) < 0)
10095                 goto nla_put_failure;
10096
10097         NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
10098
10099         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10100         msg = NULL;
10101         if (ret == 0)
10102                 return 0;
10103         wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
10104                    "%d (%s)", ret, strerror(-ret));
10105 nla_put_failure:
10106         nlmsg_free(msg);
10107         return -1;
10108 }
10109
10110
10111 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report)
10112 {
10113         struct wpa_driver_nl80211_data *drv = bss->drv;
10114
10115         if (!report) {
10116                 if (bss->nl_preq && drv->device_ap_sme &&
10117                     is_ap_interface(drv->nlmode)) {
10118                         /*
10119                          * Do not disable Probe Request reporting that was
10120                          * enabled in nl80211_setup_ap().
10121                          */
10122                         wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
10123                                    "Probe Request reporting nl_preq=%p while "
10124                                    "in AP mode", bss->nl_preq);
10125                 } else if (bss->nl_preq) {
10126                         wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
10127                                    "reporting nl_preq=%p", bss->nl_preq);
10128                         nl80211_destroy_eloop_handle(&bss->nl_preq);
10129                 }
10130                 return 0;
10131         }
10132
10133         if (bss->nl_preq) {
10134                 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
10135                            "already on! nl_preq=%p", bss->nl_preq);
10136                 return 0;
10137         }
10138
10139         bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
10140         if (bss->nl_preq == NULL)
10141                 return -1;
10142         wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
10143                    "reporting nl_preq=%p", bss->nl_preq);
10144
10145         if (nl80211_register_frame(bss, bss->nl_preq,
10146                                    (WLAN_FC_TYPE_MGMT << 2) |
10147                                    (WLAN_FC_STYPE_PROBE_REQ << 4),
10148                                    NULL, 0) < 0)
10149                 goto out_err;
10150
10151         nl80211_register_eloop_read(&bss->nl_preq,
10152                                     wpa_driver_nl80211_event_receive,
10153                                     bss->nl_cb);
10154
10155         return 0;
10156
10157  out_err:
10158         nl_destroy_handles(&bss->nl_preq);
10159         return -1;
10160 }
10161
10162
10163 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
10164                                      int ifindex, int disabled)
10165 {
10166         struct nl_msg *msg;
10167         struct nlattr *bands, *band;
10168         int ret;
10169
10170         msg = nlmsg_alloc();
10171         if (!msg)
10172                 return -1;
10173
10174         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
10175         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
10176
10177         bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
10178         if (!bands)
10179                 goto nla_put_failure;
10180
10181         /*
10182          * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
10183          * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
10184          * rates. All 5 GHz rates are left enabled.
10185          */
10186         band = nla_nest_start(msg, NL80211_BAND_2GHZ);
10187         if (!band)
10188                 goto nla_put_failure;
10189         if (disabled) {
10190                 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
10191                         "\x0c\x12\x18\x24\x30\x48\x60\x6c");
10192         }
10193         nla_nest_end(msg, band);
10194
10195         nla_nest_end(msg, bands);
10196
10197         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10198         msg = NULL;
10199         if (ret) {
10200                 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
10201                            "(%s)", ret, strerror(-ret));
10202         } else
10203                 drv->disabled_11b_rates = disabled;
10204
10205         return ret;
10206
10207 nla_put_failure:
10208         nlmsg_free(msg);
10209         return -1;
10210 }
10211
10212
10213 static int wpa_driver_nl80211_deinit_ap(void *priv)
10214 {
10215         struct i802_bss *bss = priv;
10216         struct wpa_driver_nl80211_data *drv = bss->drv;
10217         if (!is_ap_interface(drv->nlmode))
10218                 return -1;
10219         wpa_driver_nl80211_del_beacon(drv);
10220
10221         /*
10222          * If the P2P GO interface was dynamically added, then it is
10223          * possible that the interface change to station is not possible.
10224          */
10225         if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic)
10226                 return 0;
10227
10228         return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
10229 }
10230
10231
10232 static int wpa_driver_nl80211_stop_ap(void *priv)
10233 {
10234         struct i802_bss *bss = priv;
10235         struct wpa_driver_nl80211_data *drv = bss->drv;
10236         if (!is_ap_interface(drv->nlmode))
10237                 return -1;
10238         wpa_driver_nl80211_del_beacon(drv);
10239         bss->beacon_set = 0;
10240         return 0;
10241 }
10242
10243
10244 static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
10245 {
10246         struct i802_bss *bss = priv;
10247         struct wpa_driver_nl80211_data *drv = bss->drv;
10248         if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
10249                 return -1;
10250
10251         /*
10252          * If the P2P Client interface was dynamically added, then it is
10253          * possible that the interface change to station is not possible.
10254          */
10255         if (bss->if_dynamic)
10256                 return 0;
10257
10258         return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
10259 }
10260
10261
10262 static void wpa_driver_nl80211_resume(void *priv)
10263 {
10264         struct i802_bss *bss = priv;
10265
10266         if (i802_set_iface_flags(bss, 1))
10267                 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event");
10268 }
10269
10270
10271 static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
10272                                   const u8 *ies, size_t ies_len)
10273 {
10274         struct i802_bss *bss = priv;
10275         struct wpa_driver_nl80211_data *drv = bss->drv;
10276         int ret;
10277         u8 *data, *pos;
10278         size_t data_len;
10279         const u8 *own_addr = bss->addr;
10280
10281         if (action != 1) {
10282                 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
10283                            "action %d", action);
10284                 return -1;
10285         }
10286
10287         /*
10288          * Action frame payload:
10289          * Category[1] = 6 (Fast BSS Transition)
10290          * Action[1] = 1 (Fast BSS Transition Request)
10291          * STA Address
10292          * Target AP Address
10293          * FT IEs
10294          */
10295
10296         data_len = 2 + 2 * ETH_ALEN + ies_len;
10297         data = os_malloc(data_len);
10298         if (data == NULL)
10299                 return -1;
10300         pos = data;
10301         *pos++ = 0x06; /* FT Action category */
10302         *pos++ = action;
10303         os_memcpy(pos, own_addr, ETH_ALEN);
10304         pos += ETH_ALEN;
10305         os_memcpy(pos, target_ap, ETH_ALEN);
10306         pos += ETH_ALEN;
10307         os_memcpy(pos, ies, ies_len);
10308
10309         ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
10310                                              drv->bssid, own_addr, drv->bssid,
10311                                              data, data_len, 0);
10312         os_free(data);
10313
10314         return ret;
10315 }
10316
10317
10318 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
10319 {
10320         struct i802_bss *bss = priv;
10321         struct wpa_driver_nl80211_data *drv = bss->drv;
10322         struct nl_msg *msg;
10323         struct nlattr *cqm;
10324         int ret = -1;
10325
10326         wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
10327                    "hysteresis=%d", threshold, hysteresis);
10328
10329         msg = nlmsg_alloc();
10330         if (!msg)
10331                 return -1;
10332
10333         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
10334
10335         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10336
10337         cqm = nla_nest_start(msg, NL80211_ATTR_CQM);
10338         if (cqm == NULL)
10339                 goto nla_put_failure;
10340
10341         NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
10342         NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
10343         nla_nest_end(msg, cqm);
10344
10345         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10346         msg = NULL;
10347
10348 nla_put_failure:
10349         nlmsg_free(msg);
10350         return ret;
10351 }
10352
10353
10354 static int get_channel_width(struct nl_msg *msg, void *arg)
10355 {
10356         struct nlattr *tb[NL80211_ATTR_MAX + 1];
10357         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10358         struct wpa_signal_info *sig_change = arg;
10359
10360         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10361                   genlmsg_attrlen(gnlh, 0), NULL);
10362
10363         sig_change->center_frq1 = -1;
10364         sig_change->center_frq2 = -1;
10365         sig_change->chanwidth = CHAN_WIDTH_UNKNOWN;
10366
10367         if (tb[NL80211_ATTR_CHANNEL_WIDTH]) {
10368                 sig_change->chanwidth = convert2width(
10369                         nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
10370                 if (tb[NL80211_ATTR_CENTER_FREQ1])
10371                         sig_change->center_frq1 =
10372                                 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
10373                 if (tb[NL80211_ATTR_CENTER_FREQ2])
10374                         sig_change->center_frq2 =
10375                                 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
10376         }
10377
10378         return NL_SKIP;
10379 }
10380
10381
10382 static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv,
10383                                      struct wpa_signal_info *sig)
10384 {
10385         struct nl_msg *msg;
10386
10387         msg = nlmsg_alloc();
10388         if (!msg)
10389                 return -ENOMEM;
10390
10391         nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE);
10392         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10393
10394         return send_and_recv_msgs(drv, msg, get_channel_width, sig);
10395
10396 nla_put_failure:
10397         nlmsg_free(msg);
10398         return -ENOBUFS;
10399 }
10400
10401
10402 static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
10403 {
10404         struct i802_bss *bss = priv;
10405         struct wpa_driver_nl80211_data *drv = bss->drv;
10406         int res;
10407
10408         os_memset(si, 0, sizeof(*si));
10409         res = nl80211_get_link_signal(drv, si);
10410         if (res != 0)
10411                 return res;
10412
10413         res = nl80211_get_channel_width(drv, si);
10414         if (res != 0)
10415                 return res;
10416
10417         return nl80211_get_link_noise(drv, si);
10418 }
10419
10420
10421 static int wpa_driver_nl80211_shared_freq(void *priv)
10422 {
10423         struct i802_bss *bss = priv;
10424         struct wpa_driver_nl80211_data *drv = bss->drv;
10425         struct wpa_driver_nl80211_data *driver;
10426         int freq = 0;
10427
10428         /*
10429          * If the same PHY is in connected state with some other interface,
10430          * then retrieve the assoc freq.
10431          */
10432         wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
10433                    drv->phyname);
10434
10435         dl_list_for_each(driver, &drv->global->interfaces,
10436                          struct wpa_driver_nl80211_data, list) {
10437                 if (drv == driver ||
10438                     os_strcmp(drv->phyname, driver->phyname) != 0 ||
10439                     !driver->associated)
10440                         continue;
10441
10442                 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
10443                            MACSTR,
10444                            driver->phyname, driver->first_bss->ifname,
10445                            MAC2STR(driver->first_bss->addr));
10446                 if (is_ap_interface(driver->nlmode))
10447                         freq = driver->first_bss->freq;
10448                 else
10449                         freq = nl80211_get_assoc_freq(driver);
10450                 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
10451                            drv->phyname, freq);
10452         }
10453
10454         if (!freq)
10455                 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
10456                            "PHY (%s) in associated state", drv->phyname);
10457
10458         return freq;
10459 }
10460
10461
10462 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
10463                               int encrypt)
10464 {
10465         struct i802_bss *bss = priv;
10466         return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
10467                                              0, 0, 0, 0);
10468 }
10469
10470
10471 static int nl80211_set_param(void *priv, const char *param)
10472 {
10473         wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
10474         if (param == NULL)
10475                 return 0;
10476
10477 #ifdef CONFIG_P2P
10478         if (os_strstr(param, "use_p2p_group_interface=1")) {
10479                 struct i802_bss *bss = priv;
10480                 struct wpa_driver_nl80211_data *drv = bss->drv;
10481
10482                 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
10483                            "interface");
10484                 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
10485                 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
10486         }
10487
10488         if (os_strstr(param, "p2p_device=1")) {
10489                 struct i802_bss *bss = priv;
10490                 struct wpa_driver_nl80211_data *drv = bss->drv;
10491                 drv->allow_p2p_device = 1;
10492         }
10493 #endif /* CONFIG_P2P */
10494
10495         if (os_strstr(param, "use_monitor=1")) {
10496                 struct i802_bss *bss = priv;
10497                 struct wpa_driver_nl80211_data *drv = bss->drv;
10498                 drv->use_monitor = 1;
10499         }
10500
10501         if (os_strstr(param, "force_connect_cmd=1")) {
10502                 struct i802_bss *bss = priv;
10503                 struct wpa_driver_nl80211_data *drv = bss->drv;
10504                 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME;
10505         }
10506
10507         return 0;
10508 }
10509
10510
10511 static void * nl80211_global_init(void)
10512 {
10513         struct nl80211_global *global;
10514         struct netlink_config *cfg;
10515
10516         global = os_zalloc(sizeof(*global));
10517         if (global == NULL)
10518                 return NULL;
10519         global->ioctl_sock = -1;
10520         dl_list_init(&global->interfaces);
10521         global->if_add_ifindex = -1;
10522
10523         cfg = os_zalloc(sizeof(*cfg));
10524         if (cfg == NULL)
10525                 goto err;
10526
10527         cfg->ctx = global;
10528         cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
10529         cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
10530         global->netlink = netlink_init(cfg);
10531         if (global->netlink == NULL) {
10532                 os_free(cfg);
10533                 goto err;
10534         }
10535
10536         if (wpa_driver_nl80211_init_nl_global(global) < 0)
10537                 goto err;
10538
10539         global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
10540         if (global->ioctl_sock < 0) {
10541                 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s",
10542                            strerror(errno));
10543                 goto err;
10544         }
10545
10546         return global;
10547
10548 err:
10549         nl80211_global_deinit(global);
10550         return NULL;
10551 }
10552
10553
10554 static void nl80211_global_deinit(void *priv)
10555 {
10556         struct nl80211_global *global = priv;
10557         if (global == NULL)
10558                 return;
10559         if (!dl_list_empty(&global->interfaces)) {
10560                 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
10561                            "nl80211_global_deinit",
10562                            dl_list_len(&global->interfaces));
10563         }
10564
10565         if (global->netlink)
10566                 netlink_deinit(global->netlink);
10567
10568         nl_destroy_handles(&global->nl);
10569
10570         if (global->nl_event)
10571                 nl80211_destroy_eloop_handle(&global->nl_event);
10572
10573         nl_cb_put(global->nl_cb);
10574
10575         if (global->ioctl_sock >= 0)
10576                 close(global->ioctl_sock);
10577
10578         os_free(global);
10579 }
10580
10581
10582 static const char * nl80211_get_radio_name(void *priv)
10583 {
10584         struct i802_bss *bss = priv;
10585         struct wpa_driver_nl80211_data *drv = bss->drv;
10586         return drv->phyname;
10587 }
10588
10589
10590 static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
10591                          const u8 *pmkid)
10592 {
10593         struct nl_msg *msg;
10594
10595         msg = nlmsg_alloc();
10596         if (!msg)
10597                 return -ENOMEM;
10598
10599         nl80211_cmd(bss->drv, msg, 0, cmd);
10600
10601         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
10602         if (pmkid)
10603                 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
10604         if (bssid)
10605                 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
10606
10607         return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
10608  nla_put_failure:
10609         nlmsg_free(msg);
10610         return -ENOBUFS;
10611 }
10612
10613
10614 static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
10615 {
10616         struct i802_bss *bss = priv;
10617         wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
10618         return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
10619 }
10620
10621
10622 static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
10623 {
10624         struct i802_bss *bss = priv;
10625         wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
10626                    MAC2STR(bssid));
10627         return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
10628 }
10629
10630
10631 static int nl80211_flush_pmkid(void *priv)
10632 {
10633         struct i802_bss *bss = priv;
10634         wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
10635         return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
10636 }
10637
10638
10639 static void clean_survey_results(struct survey_results *survey_results)
10640 {
10641         struct freq_survey *survey, *tmp;
10642
10643         if (dl_list_empty(&survey_results->survey_list))
10644                 return;
10645
10646         dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
10647                               struct freq_survey, list) {
10648                 dl_list_del(&survey->list);
10649                 os_free(survey);
10650         }
10651 }
10652
10653
10654 static void add_survey(struct nlattr **sinfo, u32 ifidx,
10655                        struct dl_list *survey_list)
10656 {
10657         struct freq_survey *survey;
10658
10659         survey = os_zalloc(sizeof(struct freq_survey));
10660         if  (!survey)
10661                 return;
10662
10663         survey->ifidx = ifidx;
10664         survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
10665         survey->filled = 0;
10666
10667         if (sinfo[NL80211_SURVEY_INFO_NOISE]) {
10668                 survey->nf = (int8_t)
10669                         nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
10670                 survey->filled |= SURVEY_HAS_NF;
10671         }
10672
10673         if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) {
10674                 survey->channel_time =
10675                         nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]);
10676                 survey->filled |= SURVEY_HAS_CHAN_TIME;
10677         }
10678
10679         if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) {
10680                 survey->channel_time_busy =
10681                         nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]);
10682                 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY;
10683         }
10684
10685         if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) {
10686                 survey->channel_time_rx =
10687                         nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]);
10688                 survey->filled |= SURVEY_HAS_CHAN_TIME_RX;
10689         }
10690
10691         if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) {
10692                 survey->channel_time_tx =
10693                         nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]);
10694                 survey->filled |= SURVEY_HAS_CHAN_TIME_TX;
10695         }
10696
10697         wpa_printf(MSG_DEBUG, "nl80211: Freq survey dump event (freq=%d MHz noise=%d channel_time=%ld busy_time=%ld tx_time=%ld rx_time=%ld filled=%04x)",
10698                    survey->freq,
10699                    survey->nf,
10700                    (unsigned long int) survey->channel_time,
10701                    (unsigned long int) survey->channel_time_busy,
10702                    (unsigned long int) survey->channel_time_tx,
10703                    (unsigned long int) survey->channel_time_rx,
10704                    survey->filled);
10705
10706         dl_list_add_tail(survey_list, &survey->list);
10707 }
10708
10709
10710 static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq,
10711                            unsigned int freq_filter)
10712 {
10713         if (!freq_filter)
10714                 return 1;
10715
10716         return freq_filter == surveyed_freq;
10717 }
10718
10719
10720 static int survey_handler(struct nl_msg *msg, void *arg)
10721 {
10722         struct nlattr *tb[NL80211_ATTR_MAX + 1];
10723         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10724         struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
10725         struct survey_results *survey_results;
10726         u32 surveyed_freq = 0;
10727         u32 ifidx;
10728
10729         static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
10730                 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
10731                 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
10732         };
10733
10734         survey_results = (struct survey_results *) arg;
10735
10736         nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10737                   genlmsg_attrlen(gnlh, 0), NULL);
10738
10739         if (!tb[NL80211_ATTR_IFINDEX])
10740                 return NL_SKIP;
10741
10742         ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
10743
10744         if (!tb[NL80211_ATTR_SURVEY_INFO])
10745                 return NL_SKIP;
10746
10747         if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
10748                              tb[NL80211_ATTR_SURVEY_INFO],
10749                              survey_policy))
10750                 return NL_SKIP;
10751
10752         if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) {
10753                 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data");
10754                 return NL_SKIP;
10755         }
10756
10757         surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
10758
10759         if (!check_survey_ok(sinfo, surveyed_freq,
10760                              survey_results->freq_filter))
10761                 return NL_SKIP;
10762
10763         if (survey_results->freq_filter &&
10764             survey_results->freq_filter != surveyed_freq) {
10765                 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz",
10766                            surveyed_freq);
10767                 return NL_SKIP;
10768         }
10769
10770         add_survey(sinfo, ifidx, &survey_results->survey_list);
10771
10772         return NL_SKIP;
10773 }
10774
10775
10776 static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq)
10777 {
10778         struct i802_bss *bss = priv;
10779         struct wpa_driver_nl80211_data *drv = bss->drv;
10780         struct nl_msg *msg;
10781         int err = -ENOBUFS;
10782         union wpa_event_data data;
10783         struct survey_results *survey_results;
10784
10785         os_memset(&data, 0, sizeof(data));
10786         survey_results = &data.survey_results;
10787
10788         dl_list_init(&survey_results->survey_list);
10789
10790         msg = nlmsg_alloc();
10791         if (!msg)
10792                 goto nla_put_failure;
10793
10794         nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
10795
10796         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10797
10798         if (freq)
10799                 data.survey_results.freq_filter = freq;
10800
10801         do {
10802                 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data");
10803                 err = send_and_recv_msgs(drv, msg, survey_handler,
10804                                          survey_results);
10805         } while (err > 0);
10806
10807         if (err) {
10808                 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data");
10809                 goto out_clean;
10810         }
10811
10812         wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data);
10813
10814 out_clean:
10815         clean_survey_results(survey_results);
10816 nla_put_failure:
10817         return err;
10818 }
10819
10820
10821 static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
10822                                    const u8 *replay_ctr)
10823 {
10824         struct i802_bss *bss = priv;
10825         struct wpa_driver_nl80211_data *drv = bss->drv;
10826         struct nlattr *replay_nested;
10827         struct nl_msg *msg;
10828
10829         msg = nlmsg_alloc();
10830         if (!msg)
10831                 return;
10832
10833         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10834
10835         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10836
10837         replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10838         if (!replay_nested)
10839                 goto nla_put_failure;
10840
10841         NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
10842         NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
10843         NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
10844                 replay_ctr);
10845
10846         nla_nest_end(msg, replay_nested);
10847
10848         send_and_recv_msgs(drv, msg, NULL, NULL);
10849         return;
10850  nla_put_failure:
10851         nlmsg_free(msg);
10852 }
10853
10854
10855 static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
10856                                     const u8 *addr, int qos)
10857 {
10858         /* send data frame to poll STA and check whether
10859          * this frame is ACKed */
10860         struct {
10861                 struct ieee80211_hdr hdr;
10862                 u16 qos_ctl;
10863         } STRUCT_PACKED nulldata;
10864         size_t size;
10865
10866         /* Send data frame to poll STA and check whether this frame is ACKed */
10867
10868         os_memset(&nulldata, 0, sizeof(nulldata));
10869
10870         if (qos) {
10871                 nulldata.hdr.frame_control =
10872                         IEEE80211_FC(WLAN_FC_TYPE_DATA,
10873                                      WLAN_FC_STYPE_QOS_NULL);
10874                 size = sizeof(nulldata);
10875         } else {
10876                 nulldata.hdr.frame_control =
10877                         IEEE80211_FC(WLAN_FC_TYPE_DATA,
10878                                      WLAN_FC_STYPE_NULLFUNC);
10879                 size = sizeof(struct ieee80211_hdr);
10880         }
10881
10882         nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
10883         os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
10884         os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
10885         os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
10886
10887         if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0,
10888                                          0, 0) < 0)
10889                 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
10890                            "send poll frame");
10891 }
10892
10893 static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
10894                                 int qos)
10895 {
10896         struct i802_bss *bss = priv;
10897         struct wpa_driver_nl80211_data *drv = bss->drv;
10898         struct nl_msg *msg;
10899
10900         if (!drv->poll_command_supported) {
10901                 nl80211_send_null_frame(bss, own_addr, addr, qos);
10902                 return;
10903         }
10904
10905         msg = nlmsg_alloc();
10906         if (!msg)
10907                 return;
10908
10909         nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
10910
10911         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10912         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
10913
10914         send_and_recv_msgs(drv, msg, NULL, NULL);
10915         return;
10916  nla_put_failure:
10917         nlmsg_free(msg);
10918 }
10919
10920
10921 static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
10922 {
10923         struct nl_msg *msg;
10924
10925         msg = nlmsg_alloc();
10926         if (!msg)
10927                 return -ENOMEM;
10928
10929         nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
10930         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10931         NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
10932                     enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
10933         return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
10934 nla_put_failure:
10935         nlmsg_free(msg);
10936         return -ENOBUFS;
10937 }
10938
10939
10940 static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
10941                                      int ctwindow)
10942 {
10943         struct i802_bss *bss = priv;
10944
10945         wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
10946                    "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
10947
10948         if (opp_ps != -1 || ctwindow != -1) {
10949 #ifdef ANDROID_P2P
10950                 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow);
10951 #else /* ANDROID_P2P */
10952                 return -1; /* Not yet supported */
10953 #endif /* ANDROID_P2P */
10954         }
10955
10956         if (legacy_ps == -1)
10957                 return 0;
10958         if (legacy_ps != 0 && legacy_ps != 1)
10959                 return -1; /* Not yet supported */
10960
10961         return nl80211_set_power_save(bss, legacy_ps);
10962 }
10963
10964
10965 static int nl80211_start_radar_detection(void *priv,
10966                                          struct hostapd_freq_params *freq)
10967 {
10968         struct i802_bss *bss = priv;
10969         struct wpa_driver_nl80211_data *drv = bss->drv;
10970         struct nl_msg *msg;
10971         int ret;
10972
10973         wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC) %d MHz (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
10974                    freq->freq, freq->ht_enabled, freq->vht_enabled,
10975                    freq->bandwidth, freq->center_freq1, freq->center_freq2);
10976
10977         if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) {
10978                 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar "
10979                            "detection");
10980                 return -1;
10981         }
10982
10983         msg = nlmsg_alloc();
10984         if (!msg)
10985                 return -1;
10986
10987         nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT);
10988         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10989         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
10990
10991         if (freq->vht_enabled) {
10992                 switch (freq->bandwidth) {
10993                 case 20:
10994                         NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10995                                     NL80211_CHAN_WIDTH_20);
10996                         break;
10997                 case 40:
10998                         NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10999                                     NL80211_CHAN_WIDTH_40);
11000                         break;
11001                 case 80:
11002                         if (freq->center_freq2)
11003                                 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
11004                                             NL80211_CHAN_WIDTH_80P80);
11005                         else
11006                                 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
11007                                             NL80211_CHAN_WIDTH_80);
11008                         break;
11009                 case 160:
11010                         NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
11011                                     NL80211_CHAN_WIDTH_160);
11012                         break;
11013                 default:
11014                         return -1;
11015                 }
11016                 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1);
11017                 if (freq->center_freq2)
11018                         NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2,
11019                                     freq->center_freq2);
11020         } else if (freq->ht_enabled) {
11021                 switch (freq->sec_channel_offset) {
11022                 case -1:
11023                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11024                                     NL80211_CHAN_HT40MINUS);
11025                         break;
11026                 case 1:
11027                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11028                                     NL80211_CHAN_HT40PLUS);
11029                         break;
11030                 default:
11031                         NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11032                                     NL80211_CHAN_HT20);
11033                         break;
11034                 }
11035         }
11036
11037         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11038         if (ret == 0)
11039                 return 0;
11040         wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: "
11041                    "%d (%s)", ret, strerror(-ret));
11042 nla_put_failure:
11043         return -1;
11044 }
11045
11046 #ifdef CONFIG_TDLS
11047
11048 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
11049                                   u8 dialog_token, u16 status_code,
11050                                   const u8 *buf, size_t len)
11051 {
11052         struct i802_bss *bss = priv;
11053         struct wpa_driver_nl80211_data *drv = bss->drv;
11054         struct nl_msg *msg;
11055
11056         if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
11057                 return -EOPNOTSUPP;
11058
11059         if (!dst)
11060                 return -EINVAL;
11061
11062         msg = nlmsg_alloc();
11063         if (!msg)
11064                 return -ENOMEM;
11065
11066         nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
11067         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11068         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
11069         NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
11070         NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
11071         NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
11072         NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
11073
11074         return send_and_recv_msgs(drv, msg, NULL, NULL);
11075
11076 nla_put_failure:
11077         nlmsg_free(msg);
11078         return -ENOBUFS;
11079 }
11080
11081
11082 static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
11083 {
11084         struct i802_bss *bss = priv;
11085         struct wpa_driver_nl80211_data *drv = bss->drv;
11086         struct nl_msg *msg;
11087         enum nl80211_tdls_operation nl80211_oper;
11088
11089         if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
11090                 return -EOPNOTSUPP;
11091
11092         switch (oper) {
11093         case TDLS_DISCOVERY_REQ:
11094                 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
11095                 break;
11096         case TDLS_SETUP:
11097                 nl80211_oper = NL80211_TDLS_SETUP;
11098                 break;
11099         case TDLS_TEARDOWN:
11100                 nl80211_oper = NL80211_TDLS_TEARDOWN;
11101                 break;
11102         case TDLS_ENABLE_LINK:
11103                 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
11104                 break;
11105         case TDLS_DISABLE_LINK:
11106                 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
11107                 break;
11108         case TDLS_ENABLE:
11109                 return 0;
11110         case TDLS_DISABLE:
11111                 return 0;
11112         default:
11113                 return -EINVAL;
11114         }
11115
11116         msg = nlmsg_alloc();
11117         if (!msg)
11118                 return -ENOMEM;
11119
11120         nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
11121         NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
11122         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11123         NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
11124
11125         return send_and_recv_msgs(drv, msg, NULL, NULL);
11126
11127 nla_put_failure:
11128         nlmsg_free(msg);
11129         return -ENOBUFS;
11130 }
11131
11132 #endif /* CONFIG TDLS */
11133
11134
11135 #ifdef ANDROID
11136
11137 typedef struct android_wifi_priv_cmd {
11138         char *buf;
11139         int used_len;
11140         int total_len;
11141 } android_wifi_priv_cmd;
11142
11143 static int drv_errors = 0;
11144
11145 static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
11146 {
11147         drv_errors++;
11148         if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
11149                 drv_errors = 0;
11150                 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
11151         }
11152 }
11153
11154
11155 static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
11156 {
11157         struct wpa_driver_nl80211_data *drv = bss->drv;
11158         struct ifreq ifr;
11159         android_wifi_priv_cmd priv_cmd;
11160         char buf[MAX_DRV_CMD_SIZE];
11161         int ret;
11162
11163         os_memset(&ifr, 0, sizeof(ifr));
11164         os_memset(&priv_cmd, 0, sizeof(priv_cmd));
11165         os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
11166
11167         os_memset(buf, 0, sizeof(buf));
11168         os_strlcpy(buf, cmd, sizeof(buf));
11169
11170         priv_cmd.buf = buf;
11171         priv_cmd.used_len = sizeof(buf);
11172         priv_cmd.total_len = sizeof(buf);
11173         ifr.ifr_data = &priv_cmd;
11174
11175         ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
11176         if (ret < 0) {
11177                 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
11178                            __func__);
11179                 wpa_driver_send_hang_msg(drv);
11180                 return ret;
11181         }
11182
11183         drv_errors = 0;
11184         return 0;
11185 }
11186
11187
11188 static int android_pno_start(struct i802_bss *bss,
11189                              struct wpa_driver_scan_params *params)
11190 {
11191         struct wpa_driver_nl80211_data *drv = bss->drv;
11192         struct ifreq ifr;
11193         android_wifi_priv_cmd priv_cmd;
11194         int ret = 0, i = 0, bp;
11195         char buf[WEXT_PNO_MAX_COMMAND_SIZE];
11196
11197         bp = WEXT_PNOSETUP_HEADER_SIZE;
11198         os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
11199         buf[bp++] = WEXT_PNO_TLV_PREFIX;
11200         buf[bp++] = WEXT_PNO_TLV_VERSION;
11201         buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
11202         buf[bp++] = WEXT_PNO_TLV_RESERVED;
11203
11204         while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
11205                 /* Check that there is enough space needed for 1 more SSID, the
11206                  * other sections and null termination */
11207                 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
11208                      WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
11209                         break;
11210                 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
11211                                   params->ssids[i].ssid,
11212                                   params->ssids[i].ssid_len);
11213                 buf[bp++] = WEXT_PNO_SSID_SECTION;
11214                 buf[bp++] = params->ssids[i].ssid_len;
11215                 os_memcpy(&buf[bp], params->ssids[i].ssid,
11216                           params->ssids[i].ssid_len);
11217                 bp += params->ssids[i].ssid_len;
11218                 i++;
11219         }
11220
11221         buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
11222         os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
11223                     WEXT_PNO_SCAN_INTERVAL);
11224         bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
11225
11226         buf[bp++] = WEXT_PNO_REPEAT_SECTION;
11227         os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
11228                     WEXT_PNO_REPEAT);
11229         bp += WEXT_PNO_REPEAT_LENGTH;
11230
11231         buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
11232         os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
11233                     WEXT_PNO_MAX_REPEAT);
11234         bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
11235
11236         memset(&ifr, 0, sizeof(ifr));
11237         memset(&priv_cmd, 0, sizeof(priv_cmd));
11238         os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
11239
11240         priv_cmd.buf = buf;
11241         priv_cmd.used_len = bp;
11242         priv_cmd.total_len = bp;
11243         ifr.ifr_data = &priv_cmd;
11244
11245         ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
11246
11247         if (ret < 0) {
11248                 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
11249                            ret);
11250                 wpa_driver_send_hang_msg(drv);
11251                 return ret;
11252         }
11253
11254         drv_errors = 0;
11255
11256         return android_priv_cmd(bss, "PNOFORCE 1");
11257 }
11258
11259
11260 static int android_pno_stop(struct i802_bss *bss)
11261 {
11262         return android_priv_cmd(bss, "PNOFORCE 0");
11263 }
11264
11265 #endif /* ANDROID */
11266
11267
11268 static int driver_nl80211_set_key(const char *ifname, void *priv,
11269                                   enum wpa_alg alg, const u8 *addr,
11270                                   int key_idx, int set_tx,
11271                                   const u8 *seq, size_t seq_len,
11272                                   const u8 *key, size_t key_len)
11273 {
11274         struct i802_bss *bss = priv;
11275         return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx,
11276                                           set_tx, seq, seq_len, key, key_len);
11277 }
11278
11279
11280 static int driver_nl80211_scan2(void *priv,
11281                                 struct wpa_driver_scan_params *params)
11282 {
11283         struct i802_bss *bss = priv;
11284         return wpa_driver_nl80211_scan(bss, params);
11285 }
11286
11287
11288 static int driver_nl80211_deauthenticate(void *priv, const u8 *addr,
11289                                          int reason_code)
11290 {
11291         struct i802_bss *bss = priv;
11292         return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code);
11293 }
11294
11295
11296 static int driver_nl80211_authenticate(void *priv,
11297                                        struct wpa_driver_auth_params *params)
11298 {
11299         struct i802_bss *bss = priv;
11300         return wpa_driver_nl80211_authenticate(bss, params);
11301 }
11302
11303
11304 static void driver_nl80211_deinit(void *priv)
11305 {
11306         struct i802_bss *bss = priv;
11307         wpa_driver_nl80211_deinit(bss);
11308 }
11309
11310
11311 static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type,
11312                                     const char *ifname)
11313 {
11314         struct i802_bss *bss = priv;
11315         return wpa_driver_nl80211_if_remove(bss, type, ifname);
11316 }
11317
11318
11319 static int driver_nl80211_send_mlme(void *priv, const u8 *data,
11320                                     size_t data_len, int noack)
11321 {
11322         struct i802_bss *bss = priv;
11323         return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack,
11324                                             0, 0, 0, 0);
11325 }
11326
11327
11328 static int driver_nl80211_sta_remove(void *priv, const u8 *addr)
11329 {
11330         struct i802_bss *bss = priv;
11331         return wpa_driver_nl80211_sta_remove(bss, addr);
11332 }
11333
11334
11335 static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr,
11336                                        const char *ifname, int vlan_id)
11337 {
11338         struct i802_bss *bss = priv;
11339         return i802_set_sta_vlan(bss, addr, ifname, vlan_id);
11340 }
11341
11342
11343 static int driver_nl80211_read_sta_data(void *priv,
11344                                         struct hostap_sta_driver_data *data,
11345                                         const u8 *addr)
11346 {
11347         struct i802_bss *bss = priv;
11348         return i802_read_sta_data(bss, data, addr);
11349 }
11350
11351
11352 static int driver_nl80211_send_action(void *priv, unsigned int freq,
11353                                       unsigned int wait_time,
11354                                       const u8 *dst, const u8 *src,
11355                                       const u8 *bssid,
11356                                       const u8 *data, size_t data_len,
11357                                       int no_cck)
11358 {
11359         struct i802_bss *bss = priv;
11360         return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src,
11361                                               bssid, data, data_len, no_cck);
11362 }
11363
11364
11365 static int driver_nl80211_probe_req_report(void *priv, int report)
11366 {
11367         struct i802_bss *bss = priv;
11368         return wpa_driver_nl80211_probe_req_report(bss, report);
11369 }
11370
11371
11372 static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md,
11373                                             const u8 *ies, size_t ies_len)
11374 {
11375         int ret;
11376         struct nl_msg *msg;
11377         struct i802_bss *bss = priv;
11378         struct wpa_driver_nl80211_data *drv = bss->drv;
11379         u16 mdid = WPA_GET_LE16(md);
11380
11381         msg = nlmsg_alloc();
11382         if (!msg)
11383                 return -ENOMEM;
11384
11385         wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs");
11386         nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES);
11387         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11388         NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies);
11389         NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid);
11390
11391         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11392         if (ret) {
11393                 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed "
11394                            "err=%d (%s)", ret, strerror(-ret));
11395         }
11396
11397         return ret;
11398
11399 nla_put_failure:
11400         nlmsg_free(msg);
11401         return -ENOBUFS;
11402 }
11403
11404
11405 const u8 * wpa_driver_nl80211_get_macaddr(void *priv)
11406 {
11407         struct i802_bss *bss = priv;
11408         struct wpa_driver_nl80211_data *drv = bss->drv;
11409
11410         if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE)
11411                 return NULL;
11412
11413         return bss->addr;
11414 }
11415
11416
11417 static const char * scan_state_str(enum scan_states scan_state)
11418 {
11419         switch (scan_state) {
11420         case NO_SCAN:
11421                 return "NO_SCAN";
11422         case SCAN_REQUESTED:
11423                 return "SCAN_REQUESTED";
11424         case SCAN_STARTED:
11425                 return "SCAN_STARTED";
11426         case SCAN_COMPLETED:
11427                 return "SCAN_COMPLETED";
11428         case SCAN_ABORTED:
11429                 return "SCAN_ABORTED";
11430         case SCHED_SCAN_STARTED:
11431                 return "SCHED_SCAN_STARTED";
11432         case SCHED_SCAN_STOPPED:
11433                 return "SCHED_SCAN_STOPPED";
11434         case SCHED_SCAN_RESULTS:
11435                 return "SCHED_SCAN_RESULTS";
11436         }
11437
11438         return "??";
11439 }
11440
11441
11442 static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen)
11443 {
11444         struct i802_bss *bss = priv;
11445         struct wpa_driver_nl80211_data *drv = bss->drv;
11446         int res;
11447         char *pos, *end;
11448
11449         pos = buf;
11450         end = buf + buflen;
11451
11452         res = os_snprintf(pos, end - pos,
11453                           "ifindex=%d\n"
11454                           "ifname=%s\n"
11455                           "brname=%s\n"
11456                           "addr=" MACSTR "\n"
11457                           "freq=%d\n"
11458                           "%s%s%s%s%s",
11459                           bss->ifindex,
11460                           bss->ifname,
11461                           bss->brname,
11462                           MAC2STR(bss->addr),
11463                           bss->freq,
11464                           bss->beacon_set ? "beacon_set=1\n" : "",
11465                           bss->added_if_into_bridge ?
11466                           "added_if_into_bridge=1\n" : "",
11467                           bss->added_bridge ? "added_bridge=1\n" : "",
11468                           bss->in_deinit ? "in_deinit=1\n" : "",
11469                           bss->if_dynamic ? "if_dynamic=1\n" : "");
11470         if (res < 0 || res >= end - pos)
11471                 return pos - buf;
11472         pos += res;
11473
11474         if (bss->wdev_id_set) {
11475                 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n",
11476                                   (unsigned long long) bss->wdev_id);
11477                 if (res < 0 || res >= end - pos)
11478                         return pos - buf;
11479                 pos += res;
11480         }
11481
11482         res = os_snprintf(pos, end - pos,
11483                           "phyname=%s\n"
11484                           "drv_ifindex=%d\n"
11485                           "operstate=%d\n"
11486                           "scan_state=%s\n"
11487                           "auth_bssid=" MACSTR "\n"
11488                           "auth_attempt_bssid=" MACSTR "\n"
11489                           "bssid=" MACSTR "\n"
11490                           "prev_bssid=" MACSTR "\n"
11491                           "associated=%d\n"
11492                           "assoc_freq=%u\n"
11493                           "monitor_sock=%d\n"
11494                           "monitor_ifidx=%d\n"
11495                           "monitor_refcount=%d\n"
11496                           "last_mgmt_freq=%u\n"
11497                           "eapol_tx_sock=%d\n"
11498                           "%s%s%s%s%s%s%s%s%s%s%s%s%s",
11499                           drv->phyname,
11500                           drv->ifindex,
11501                           drv->operstate,
11502                           scan_state_str(drv->scan_state),
11503                           MAC2STR(drv->auth_bssid),
11504                           MAC2STR(drv->auth_attempt_bssid),
11505                           MAC2STR(drv->bssid),
11506                           MAC2STR(drv->prev_bssid),
11507                           drv->associated,
11508                           drv->assoc_freq,
11509                           drv->monitor_sock,
11510                           drv->monitor_ifidx,
11511                           drv->monitor_refcount,
11512                           drv->last_mgmt_freq,
11513                           drv->eapol_tx_sock,
11514                           drv->ignore_if_down_event ?
11515                           "ignore_if_down_event=1\n" : "",
11516                           drv->scan_complete_events ?
11517                           "scan_complete_events=1\n" : "",
11518                           drv->disabled_11b_rates ?
11519                           "disabled_11b_rates=1\n" : "",
11520                           drv->pending_remain_on_chan ?
11521                           "pending_remain_on_chan=1\n" : "",
11522                           drv->in_interface_list ? "in_interface_list=1\n" : "",
11523                           drv->device_ap_sme ? "device_ap_sme=1\n" : "",
11524                           drv->poll_command_supported ?
11525                           "poll_command_supported=1\n" : "",
11526                           drv->data_tx_status ? "data_tx_status=1\n" : "",
11527                           drv->scan_for_auth ? "scan_for_auth=1\n" : "",
11528                           drv->retry_auth ? "retry_auth=1\n" : "",
11529                           drv->use_monitor ? "use_monitor=1\n" : "",
11530                           drv->ignore_next_local_disconnect ?
11531                           "ignore_next_local_disconnect=1\n" : "",
11532                           drv->allow_p2p_device ? "allow_p2p_device=1\n" : "");
11533         if (res < 0 || res >= end - pos)
11534                 return pos - buf;
11535         pos += res;
11536
11537         if (drv->has_capability) {
11538                 res = os_snprintf(pos, end - pos,
11539                                   "capa.key_mgmt=0x%x\n"
11540                                   "capa.enc=0x%x\n"
11541                                   "capa.auth=0x%x\n"
11542                                   "capa.flags=0x%x\n"
11543                                   "capa.max_scan_ssids=%d\n"
11544                                   "capa.max_sched_scan_ssids=%d\n"
11545                                   "capa.sched_scan_supported=%d\n"
11546                                   "capa.max_match_sets=%d\n"
11547                                   "capa.max_remain_on_chan=%u\n"
11548                                   "capa.max_stations=%u\n"
11549                                   "capa.probe_resp_offloads=0x%x\n"
11550                                   "capa.max_acl_mac_addrs=%u\n"
11551                                   "capa.num_multichan_concurrent=%u\n",
11552                                   drv->capa.key_mgmt,
11553                                   drv->capa.enc,
11554                                   drv->capa.auth,
11555                                   drv->capa.flags,
11556                                   drv->capa.max_scan_ssids,
11557                                   drv->capa.max_sched_scan_ssids,
11558                                   drv->capa.sched_scan_supported,
11559                                   drv->capa.max_match_sets,
11560                                   drv->capa.max_remain_on_chan,
11561                                   drv->capa.max_stations,
11562                                   drv->capa.probe_resp_offloads,
11563                                   drv->capa.max_acl_mac_addrs,
11564                                   drv->capa.num_multichan_concurrent);
11565                 if (res < 0 || res >= end - pos)
11566                         return pos - buf;
11567                 pos += res;
11568         }
11569
11570         return pos - buf;
11571 }
11572
11573
11574 static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings)
11575 {
11576         if (settings->head)
11577                 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD,
11578                         settings->head_len, settings->head);
11579
11580         if (settings->tail)
11581                 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL,
11582                         settings->tail_len, settings->tail);
11583
11584         if (settings->beacon_ies)
11585                 NLA_PUT(msg, NL80211_ATTR_IE,
11586                         settings->beacon_ies_len, settings->beacon_ies);
11587
11588         if (settings->proberesp_ies)
11589                 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
11590                         settings->proberesp_ies_len, settings->proberesp_ies);
11591
11592         if (settings->assocresp_ies)
11593                 NLA_PUT(msg,
11594                         NL80211_ATTR_IE_ASSOC_RESP,
11595                         settings->assocresp_ies_len, settings->assocresp_ies);
11596
11597         if (settings->probe_resp)
11598                 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP,
11599                         settings->probe_resp_len, settings->probe_resp);
11600
11601         return 0;
11602
11603 nla_put_failure:
11604         return -ENOBUFS;
11605 }
11606
11607
11608 static int nl80211_switch_channel(void *priv, struct csa_settings *settings)
11609 {
11610         struct nl_msg *msg;
11611         struct i802_bss *bss = priv;
11612         struct wpa_driver_nl80211_data *drv = bss->drv;
11613         struct nlattr *beacon_csa;
11614         int ret = -ENOBUFS;
11615
11616         wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)",
11617                    settings->cs_count, settings->block_tx,
11618                    settings->freq_params.freq, settings->freq_params.bandwidth,
11619                    settings->freq_params.center_freq1,
11620                    settings->freq_params.center_freq2);
11621
11622         if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) {
11623                 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command");
11624                 return -EOPNOTSUPP;
11625         }
11626
11627         if ((drv->nlmode != NL80211_IFTYPE_AP) &&
11628             (drv->nlmode != NL80211_IFTYPE_P2P_GO))
11629                 return -EOPNOTSUPP;
11630
11631         /* check settings validity */
11632         if (!settings->beacon_csa.tail ||
11633             ((settings->beacon_csa.tail_len <=
11634               settings->counter_offset_beacon) ||
11635              (settings->beacon_csa.tail[settings->counter_offset_beacon] !=
11636               settings->cs_count)))
11637                 return -EINVAL;
11638
11639         if (settings->beacon_csa.probe_resp &&
11640             ((settings->beacon_csa.probe_resp_len <=
11641               settings->counter_offset_presp) ||
11642              (settings->beacon_csa.probe_resp[settings->counter_offset_presp] !=
11643               settings->cs_count)))
11644                 return -EINVAL;
11645
11646         msg = nlmsg_alloc();
11647         if (!msg)
11648                 return -ENOMEM;
11649
11650         nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH);
11651         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11652         NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count);
11653         ret = nl80211_put_freq_params(msg, &settings->freq_params);
11654         if (ret)
11655                 goto error;
11656
11657         if (settings->block_tx)
11658                 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX);
11659
11660         /* beacon_after params */
11661         ret = set_beacon_data(msg, &settings->beacon_after);
11662         if (ret)
11663                 goto error;
11664
11665         /* beacon_csa params */
11666         beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES);
11667         if (!beacon_csa)
11668                 goto nla_put_failure;
11669
11670         ret = set_beacon_data(msg, &settings->beacon_csa);
11671         if (ret)
11672                 goto error;
11673
11674         NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON,
11675                     settings->counter_offset_beacon);
11676
11677         if (settings->beacon_csa.probe_resp)
11678                 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP,
11679                             settings->counter_offset_presp);
11680
11681         nla_nest_end(msg, beacon_csa);
11682         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11683         if (ret) {
11684                 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)",
11685                            ret, strerror(-ret));
11686         }
11687         return ret;
11688
11689 nla_put_failure:
11690         ret = -ENOBUFS;
11691 error:
11692         nlmsg_free(msg);
11693         wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request");
11694         return ret;
11695 }
11696
11697
11698 static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set,
11699                                u8 qos_map_set_len)
11700 {
11701         struct i802_bss *bss = priv;
11702         struct wpa_driver_nl80211_data *drv = bss->drv;
11703         struct nl_msg *msg;
11704         int ret;
11705
11706         msg = nlmsg_alloc();
11707         if (!msg)
11708                 return -ENOMEM;
11709
11710         wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map",
11711                     qos_map_set, qos_map_set_len);
11712
11713         nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP);
11714         NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11715         NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set);
11716
11717         ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11718         if (ret)
11719                 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed");
11720
11721         return ret;
11722
11723 nla_put_failure:
11724         nlmsg_free(msg);
11725         return -ENOBUFS;
11726 }
11727
11728
11729 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
11730         .name = "nl80211",
11731         .desc = "Linux nl80211/cfg80211",
11732         .get_bssid = wpa_driver_nl80211_get_bssid,
11733         .get_ssid = wpa_driver_nl80211_get_ssid,
11734         .set_key = driver_nl80211_set_key,
11735         .scan2 = driver_nl80211_scan2,
11736         .sched_scan = wpa_driver_nl80211_sched_scan,
11737         .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
11738         .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
11739         .deauthenticate = driver_nl80211_deauthenticate,
11740         .authenticate = driver_nl80211_authenticate,
11741         .associate = wpa_driver_nl80211_associate,
11742         .global_init = nl80211_global_init,
11743         .global_deinit = nl80211_global_deinit,
11744         .init2 = wpa_driver_nl80211_init,
11745         .deinit = driver_nl80211_deinit,
11746         .get_capa = wpa_driver_nl80211_get_capa,
11747         .set_operstate = wpa_driver_nl80211_set_operstate,
11748         .set_supp_port = wpa_driver_nl80211_set_supp_port,
11749         .set_country = wpa_driver_nl80211_set_country,
11750         .get_country = wpa_driver_nl80211_get_country,
11751         .set_ap = wpa_driver_nl80211_set_ap,
11752         .set_acl = wpa_driver_nl80211_set_acl,
11753         .if_add = wpa_driver_nl80211_if_add,
11754         .if_remove = driver_nl80211_if_remove,
11755         .send_mlme = driver_nl80211_send_mlme,
11756         .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
11757         .sta_add = wpa_driver_nl80211_sta_add,
11758         .sta_remove = driver_nl80211_sta_remove,
11759         .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
11760         .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
11761         .hapd_init = i802_init,
11762         .hapd_deinit = i802_deinit,
11763         .set_wds_sta = i802_set_wds_sta,
11764         .get_seqnum = i802_get_seqnum,
11765         .flush = i802_flush,
11766         .get_inact_sec = i802_get_inact_sec,
11767         .sta_clear_stats = i802_sta_clear_stats,
11768         .set_rts = i802_set_rts,
11769         .set_frag = i802_set_frag,
11770         .set_tx_queue_params = i802_set_tx_queue_params,
11771         .set_sta_vlan = driver_nl80211_set_sta_vlan,
11772         .sta_deauth = i802_sta_deauth,
11773         .sta_disassoc = i802_sta_disassoc,
11774         .read_sta_data = driver_nl80211_read_sta_data,
11775         .set_freq = i802_set_freq,
11776         .send_action = driver_nl80211_send_action,
11777         .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
11778         .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
11779         .cancel_remain_on_channel =
11780         wpa_driver_nl80211_cancel_remain_on_channel,
11781         .probe_req_report = driver_nl80211_probe_req_report,
11782         .deinit_ap = wpa_driver_nl80211_deinit_ap,
11783         .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
11784         .resume = wpa_driver_nl80211_resume,
11785         .send_ft_action = nl80211_send_ft_action,
11786         .signal_monitor = nl80211_signal_monitor,
11787         .signal_poll = nl80211_signal_poll,
11788         .send_frame = nl80211_send_frame,
11789         .shared_freq = wpa_driver_nl80211_shared_freq,
11790         .set_param = nl80211_set_param,
11791         .get_radio_name = nl80211_get_radio_name,
11792         .add_pmkid = nl80211_add_pmkid,
11793         .remove_pmkid = nl80211_remove_pmkid,
11794         .flush_pmkid = nl80211_flush_pmkid,
11795         .set_rekey_info = nl80211_set_rekey_info,
11796         .poll_client = nl80211_poll_client,
11797         .set_p2p_powersave = nl80211_set_p2p_powersave,
11798         .start_dfs_cac = nl80211_start_radar_detection,
11799         .stop_ap = wpa_driver_nl80211_stop_ap,
11800 #ifdef CONFIG_TDLS
11801         .send_tdls_mgmt = nl80211_send_tdls_mgmt,
11802         .tdls_oper = nl80211_tdls_oper,
11803 #endif /* CONFIG_TDLS */
11804         .update_ft_ies = wpa_driver_nl80211_update_ft_ies,
11805         .get_mac_addr = wpa_driver_nl80211_get_macaddr,
11806         .get_survey = wpa_driver_nl80211_get_survey,
11807         .status = wpa_driver_nl80211_status,
11808         .switch_channel = nl80211_switch_channel,
11809 #ifdef ANDROID_P2P
11810         .set_noa = wpa_driver_set_p2p_noa,
11811         .get_noa = wpa_driver_get_p2p_noa,
11812         .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie,
11813 #endif /* ANDROID_P2P */
11814 #ifdef ANDROID
11815         .driver_cmd = wpa_driver_nl80211_driver_cmd,
11816 #endif /* ANDROID */
11817         .set_qos_map = nl80211_set_qos_map,
11818 };