src/drivers/driver_nl80211.h

   1 /*
   2  * Driver interaction with Linux nl80211/cfg80211 - definitions
   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 #ifndef DRIVER_NL80211_H
  14 #define DRIVER_NL80211_H
  15
  16 #include "nl80211_copy.h"
  17 #include "utils/list.h"
  18 #include "driver.h"
  19
  20 #ifdef CONFIG_LIBNL20
  21 /* libnl 2.0 compatibility code */
  22 #define nl_handle nl_sock
  23 #define nl80211_handle_alloc nl_socket_alloc_cb
  24 #define nl80211_handle_destroy nl_socket_free
  25 #endif /* CONFIG_LIBNL20 */
  26
  27 struct nl80211_global {
  28         void *ctx;
  29         struct dl_list interfaces;
  30         int if_add_ifindex;
  31         u64 if_add_wdevid;
  32         int if_add_wdevid_set;
  33         struct netlink_data *netlink;
  34         struct nl_cb *nl_cb;
  35         struct nl_handle *nl;
  36         int nl80211_id;
  37         int ioctl_sock; /* socket for ioctl() use */
  38
  39         struct nl_handle *nl_event;
  40 };
  41
  42 struct nl80211_wiphy_data {
  43         struct dl_list list;
  44         struct dl_list bsss;
  45         struct dl_list drvs;
  46
  47         struct nl_handle *nl_beacons;
  48         struct nl_cb *nl_cb;
  49
  50         int wiphy_idx;
  51 };
  52
  53 struct i802_bss {
  54         struct wpa_driver_nl80211_data *drv;
  55         struct i802_bss *next;
  56         int ifindex;
  57         int br_ifindex;
  58         u64 wdev_id;
  59         char ifname[IFNAMSIZ + 1];
  60         char brname[IFNAMSIZ];
  61         unsigned int beacon_set:1;
  62         unsigned int added_if_into_bridge:1;
  63         unsigned int added_bridge:1;
  64         unsigned int in_deinit:1;
  65         unsigned int wdev_id_set:1;
  66         unsigned int added_if:1;
  67         unsigned int static_ap:1;
  68
  69         u8 addr[ETH_ALEN];
  70
  71         int freq;
  72         int bandwidth;
  73         int if_dynamic;
  74
  75         void *ctx;
  76         struct nl_handle *nl_preq, *nl_mgmt;
  77         struct nl_cb *nl_cb;
  78
  79         struct nl80211_wiphy_data *wiphy_data;
  80         struct dl_list wiphy_list;
  81 };
  82
  83 struct wpa_driver_nl80211_data {
  84         struct nl80211_global *global;
  85         struct dl_list list;
  86         struct dl_list wiphy_list;
  87         char phyname[32];
  88         unsigned int wiphy_idx;
  89         u8 perm_addr[ETH_ALEN];
  90         void *ctx;
  91         int ifindex;
  92         int if_removed;
  93         int if_disabled;
  94         int ignore_if_down_event;
  95         struct rfkill_data *rfkill;
  96         struct wpa_driver_capa capa;
  97         u8 *extended_capa, *extended_capa_mask;
  98         unsigned int extended_capa_len;
  99         struct drv_nl80211_ext_capa {
 100                 enum nl80211_iftype iftype;
 101                 u8 *ext_capa, *ext_capa_mask;
 102                 unsigned int ext_capa_len;
 103         } iface_ext_capa[NL80211_IFTYPE_MAX];
 104         unsigned int num_iface_ext_capa;
 105
 106         int has_capability;
 107
 108         int operstate;
 109
 110         int scan_complete_events;
 111         enum scan_states {
 112                 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED,
 113                 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED,
 114                 SCHED_SCAN_RESULTS
 115         } scan_state;
 116
 117         u8 auth_bssid[ETH_ALEN];
 118         u8 auth_attempt_bssid[ETH_ALEN];
 119         u8 bssid[ETH_ALEN];
 120         u8 prev_bssid[ETH_ALEN];
 121         int associated;
 122         u8 ssid[SSID_MAX_LEN];
 123         size_t ssid_len;
 124         enum nl80211_iftype nlmode;
 125         enum nl80211_iftype ap_scan_as_station;
 126         unsigned int assoc_freq;
 127
 128         int monitor_sock;
 129         int monitor_ifidx;
 130         int monitor_refcount;
 131
 132         unsigned int disabled_11b_rates:1;
 133         unsigned int pending_remain_on_chan:1;
 134         unsigned int in_interface_list:1;
 135         unsigned int device_ap_sme:1;
 136         unsigned int poll_command_supported:1;
 137         unsigned int data_tx_status:1;
 138         unsigned int scan_for_auth:1;
 139         unsigned int retry_auth:1;
 140         unsigned int use_monitor:1;
 141         unsigned int ignore_next_local_disconnect:1;
 142         unsigned int ignore_next_local_deauth:1;
 143         unsigned int hostapd:1;
 144         unsigned int start_mode_ap:1;
 145         unsigned int start_iface_up:1;
 146         unsigned int test_use_roc_tx:1;
 147         unsigned int ignore_deauth_event:1;
 148         unsigned int vendor_cmd_test_avail:1;
 149         unsigned int roaming_vendor_cmd_avail:1;
 150         unsigned int dfs_vendor_cmd_avail:1;
 151         unsigned int have_low_prio_scan:1;
 152         unsigned int force_connect_cmd:1;
 153         unsigned int addr_changed:1;
 154         unsigned int get_features_vendor_cmd_avail:1;
 155         unsigned int set_rekey_offload:1;
 156         unsigned int p2p_go_ctwindow_supported:1;
 157         unsigned int setband_vendor_cmd_avail:1;
 158         unsigned int get_pref_freq_list:1;
 159         unsigned int set_prob_oper_freq:1;
 160         unsigned int scan_vendor_cmd_avail:1;
 161         unsigned int connect_reassoc:1;
 162
 163         u64 vendor_scan_cookie;
 164         u64 remain_on_chan_cookie;
 165         u64 send_action_cookie;
 166 #define MAX_SEND_ACTION_COOKIES 20
 167         u64 send_action_cookies[MAX_SEND_ACTION_COOKIES];
 168         unsigned int num_send_action_cookies;
 169
 170         unsigned int last_mgmt_freq;
 171
 172         struct wpa_driver_scan_filter *filter_ssids;
 173         size_t num_filter_ssids;
 174
 175         struct i802_bss *first_bss;
 176
 177         int eapol_tx_sock;
 178
 179         int eapol_sock; /* socket for EAPOL frames */
 180
 181         struct nl_handle *rtnl_sk; /* nl_sock for NETLINK_ROUTE */
 182
 183         int default_if_indices[16];
 184         /* the AP/AP_VLAN iface that is in this bridge */
 185         int default_if_indices_reason[16];
 186         int *if_indices;
 187         int *if_indices_reason;
 188         int num_if_indices;
 189
 190         /* From failed authentication command */
 191         int auth_freq;
 192         u8 auth_bssid_[ETH_ALEN];
 193         u8 auth_ssid[SSID_MAX_LEN];
 194         size_t auth_ssid_len;
 195         int auth_alg;
 196         u8 *auth_ie;
 197         size_t auth_ie_len;
 198         u8 auth_wep_key[4][16];
 199         size_t auth_wep_key_len[4];
 200         int auth_wep_tx_keyidx;
 201         int auth_local_state_change;
 202         int auth_p2p;
 203
 204         /*
 205          * Tells whether the last scan issued from wpa_supplicant was a normal
 206          * scan (NL80211_CMD_TRIGGER_SCAN) or a vendor scan
 207          * (NL80211_CMD_VENDOR). 0 if no pending scan request.
 208          */
 209         int last_scan_cmd;
 210 };
 211
 212 struct nl_msg;
 213
 214 void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
 215                    struct nl_msg *msg, int flags, uint8_t cmd);
 216 struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd);
 217 struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags,
 218                                 uint8_t cmd);
 219 struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd);
 220 int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, struct nl_msg *msg,
 221                        int (*valid_handler)(struct nl_msg *, void *),
 222                        void *valid_data);
 223 int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
 224                          const char *ifname, enum nl80211_iftype iftype,
 225                          const u8 *addr, int wds,
 226                          int (*handler)(struct nl_msg *, void *),
 227                          void *arg, int use_existing);
 228 void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx);
 229 unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv);
 230 enum chan_width convert2width(int width);
 231 void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv);
 232 struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv,
 233                                   int ifindex);
 234 int is_ap_interface(enum nl80211_iftype nlmode);
 235 int is_sta_interface(enum nl80211_iftype nlmode);
 236 int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv);
 237 int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
 238                             struct wpa_signal_info *sig);
 239 int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
 240                            struct wpa_signal_info *sig_change);
 241 int nl80211_get_wiphy_index(struct i802_bss *bss);
 242 int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
 243                                 enum nl80211_iftype nlmode);
 244 int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
 245                             const u8 *addr, int cmd, u16 reason_code,
 246                             int local_state_change);
 247
 248 int nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv);
 249 void nl80211_remove_monitor_interface(struct wpa_driver_nl80211_data *drv);
 250 int nl80211_send_monitor(struct wpa_driver_nl80211_data *drv,
 251                          const void *data, size_t len,
 252                          int encrypt, int noack);
 253
 254 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv);
 255 struct hostapd_hw_modes *
 256 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags);
 257
 258 int process_global_event(struct nl_msg *msg, void *arg);
 259 int process_bss_event(struct nl_msg *msg, void *arg);
 260
 261 const char * nl80211_iftype_str(enum nl80211_iftype mode);
 262
 263 #ifdef ANDROID
 264 int android_nl_socket_set_nonblocking(struct nl_handle *handle);
 265 int android_pno_start(struct i802_bss *bss,
 266                       struct wpa_driver_scan_params *params);
 267 int android_pno_stop(struct i802_bss *bss);
 268 extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
 269                                          size_t buf_len);
 270
 271 #ifdef ANDROID_P2P
 272 int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration);
 273 int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len);
 274 int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow);
 275 int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
 276                                  const struct wpabuf *proberesp,
 277                                  const struct wpabuf *assocresp);
 278 #endif /* ANDROID_P2P */
 279 #endif /* ANDROID */
 280
 281
 282 /* driver_nl80211_scan.c */
 283
 284 struct nl80211_bss_info_arg {
 285         struct wpa_driver_nl80211_data *drv;
 286         struct wpa_scan_results *res;
 287         unsigned int assoc_freq;
 288         unsigned int ibss_freq;
 289         u8 assoc_bssid[ETH_ALEN];
 290 };
 291
 292 int bss_info_handler(struct nl_msg *msg, void *arg);
 293 void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx);
 294 int wpa_driver_nl80211_scan(struct i802_bss *bss,
 295                             struct wpa_driver_scan_params *params);
 296 int wpa_driver_nl80211_sched_scan(void *priv,
 297                                   struct wpa_driver_scan_params *params);
 298 int wpa_driver_nl80211_stop_sched_scan(void *priv);
 299 struct wpa_scan_results * wpa_driver_nl80211_get_scan_results(void *priv);
 300 void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv);
 301 int wpa_driver_nl80211_abort_scan(void *priv);
 302 int wpa_driver_nl80211_vendor_scan(struct i802_bss *bss,
 303                                    struct wpa_driver_scan_params *params);
 304
 305 #endif /* DRIVER_NL80211_H */