wpa_supplicant/p2p_supplicant.c

   1 /*
   2  * wpa_supplicant - P2P
   3  * Copyright (c) 2009-2010, Atheros Communications
   4  * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
   5  *
   6  * This software may be distributed under the terms of the BSD license.
   7  * See README for more details.
   8  */
   9
  10 #include "includes.h"
  11
  12 #include "common.h"
  13 #include "eloop.h"
  14 #include "common/ieee802_11_common.h"
  15 #include "common/ieee802_11_defs.h"
  16 #include "common/wpa_ctrl.h"
  17 #include "wps/wps_i.h"
  18 #include "p2p/p2p.h"
  19 #include "ap/hostapd.h"
  20 #include "ap/ap_config.h"
  21 #include "ap/sta_info.h"
  22 #include "ap/ap_drv_ops.h"
  23 #include "ap/wps_hostapd.h"
  24 #include "ap/p2p_hostapd.h"
  25 #include "ap/dfs.h"
  26 #include "eapol_supp/eapol_supp_sm.h"
  27 #include "rsn_supp/wpa.h"
  28 #include "wpa_supplicant_i.h"
  29 #include "driver_i.h"
  30 #include "ap.h"
  31 #include "config_ssid.h"
  32 #include "config.h"
  33 #include "notify.h"
  34 #include "scan.h"
  35 #include "bss.h"
  36 #include "offchannel.h"
  37 #include "wps_supplicant.h"
  38 #include "p2p_supplicant.h"
  39 #include "wifi_display.h"
  40
  41
  42 /*
  43  * How many times to try to scan to find the GO before giving up on join
  44  * request.
  45  */
  46 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
  47
  48 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
  49
  50 #ifndef P2P_MAX_CLIENT_IDLE
  51 /*
  52  * How many seconds to try to reconnect to the GO when connection in P2P client
  53  * role has been lost.
  54  */
  55 #define P2P_MAX_CLIENT_IDLE 10
  56 #endif /* P2P_MAX_CLIENT_IDLE */
  57
  58 #ifndef P2P_MAX_INITIAL_CONN_WAIT
  59 /*
  60  * How many seconds to wait for initial 4-way handshake to get completed after
  61  * WPS provisioning step or after the re-invocation of a persistent group on a
  62  * P2P Client.
  63  */
  64 #define P2P_MAX_INITIAL_CONN_WAIT 10
  65 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
  66
  67 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
  68 /*
  69  * How many seconds to wait for initial 4-way handshake to get completed after
  70  * WPS provisioning step on the GO. This controls the extra time the P2P
  71  * operation is considered to be in progress (e.g., to delay other scans) after
  72  * WPS provisioning has been completed on the GO during group formation.
  73  */
  74 #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
  75 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
  76
  77 #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
  78 /*
  79  * How many seconds to wait for initial 4-way handshake to get completed after
  80  * re-invocation of a persistent group on the GO when the client is expected
  81  * to connect automatically (no user interaction).
  82  */
  83 #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
  84 #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
  85
  86 #define P2P_MGMT_DEVICE_PREFIX          "p2p-dev-"
  87
  88 enum p2p_group_removal_reason {
  89         P2P_GROUP_REMOVAL_UNKNOWN,
  90         P2P_GROUP_REMOVAL_SILENT,
  91         P2P_GROUP_REMOVAL_FORMATION_FAILED,
  92         P2P_GROUP_REMOVAL_REQUESTED,
  93         P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
  94         P2P_GROUP_REMOVAL_UNAVAILABLE,
  95         P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
  96         P2P_GROUP_REMOVAL_PSK_FAILURE,
  97         P2P_GROUP_REMOVAL_FREQ_CONFLICT
  98 };
  99
 100
 101 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
 102 static struct wpa_supplicant *
 103 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
 104                          int go);
 105 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
 106                                const u8 *ssid, size_t ssid_len);
 107 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
 108                                    const u8 *ssid, size_t ssid_len);
 109 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
 110 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
 111                          const u8 *dev_addr, enum p2p_wps_method wps_method,
 112                          int auto_join, int freq,
 113                          const u8 *ssid, size_t ssid_len);
 114 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
 115 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
 116 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
 117 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
 118 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
 119                                              void *timeout_ctx);
 120 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
 121 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
 122                                        int group_added);
 123 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
 124 static void wpas_stop_listen(void *ctx);
 125 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
 126 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
 127 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
 128                                         enum wpa_driver_if_type type);
 129
 130
 131 /*
 132  * Get the number of concurrent channels that the HW can operate, but that are
 133  * currently not in use by any of the wpa_supplicant interfaces.
 134  */
 135 static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
 136 {
 137         int *freqs;
 138         int num, unused;
 139
 140         freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
 141         if (!freqs)
 142                 return -1;
 143
 144         num = get_shared_radio_freqs(wpa_s, freqs,
 145                                      wpa_s->num_multichan_concurrent);
 146         os_free(freqs);
 147
 148         unused = wpa_s->num_multichan_concurrent - num;
 149         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
 150         return unused;
 151 }
 152
 153
 154 /*
 155  * Get the frequencies that are currently in use by one or more of the virtual
 156  * interfaces, and that are also valid for P2P operation.
 157  */
 158 static unsigned int
 159 wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
 160                           struct wpa_used_freq_data *p2p_freqs,
 161                           unsigned int len)
 162 {
 163         struct wpa_used_freq_data *freqs;
 164         unsigned int num, i, j;
 165
 166         freqs = os_calloc(wpa_s->num_multichan_concurrent,
 167                           sizeof(struct wpa_used_freq_data));
 168         if (!freqs)
 169                 return 0;
 170
 171         num = get_shared_radio_freqs_data(wpa_s, freqs,
 172                                           wpa_s->num_multichan_concurrent);
 173
 174         os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
 175
 176         for (i = 0, j = 0; i < num && j < len; i++) {
 177                 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
 178                         p2p_freqs[j++] = freqs[i];
 179         }
 180
 181         os_free(freqs);
 182
 183         dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
 184
 185         return j;
 186 }
 187
 188
 189 static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
 190                                              int freq)
 191 {
 192         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 193                 return;
 194         if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
 195             freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
 196             wpas_p2p_num_unused_channels(wpa_s) > 0) {
 197                 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
 198                            freq);
 199                 freq = 0;
 200         }
 201         p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
 202 }
 203
 204
 205 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
 206                                       struct wpa_scan_results *scan_res)
 207 {
 208         size_t i;
 209
 210         if (wpa_s->p2p_scan_work) {
 211                 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
 212                 wpa_s->p2p_scan_work = NULL;
 213                 radio_work_done(work);
 214         }
 215
 216         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 217                 return;
 218
 219         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
 220                    (int) scan_res->num);
 221
 222         for (i = 0; i < scan_res->num; i++) {
 223                 struct wpa_scan_res *bss = scan_res->res[i];
 224                 struct os_reltime time_tmp_age, entry_ts;
 225                 const u8 *ies;
 226                 size_t ies_len;
 227
 228                 time_tmp_age.sec = bss->age / 1000;
 229                 time_tmp_age.usec = (bss->age % 1000) * 1000;
 230                 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
 231
 232                 ies = (const u8 *) (bss + 1);
 233                 ies_len = bss->ie_len;
 234                 if (bss->beacon_ie_len > 0 &&
 235                     !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
 236                     wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
 237                         wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
 238                                    MACSTR, MAC2STR(bss->bssid));
 239                         ies = ies + ies_len;
 240                         ies_len = bss->beacon_ie_len;
 241                 }
 242
 243
 244                 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
 245                                          bss->freq, &entry_ts, bss->level,
 246                                          ies, ies_len) > 0)
 247                         break;
 248         }
 249
 250         p2p_scan_res_handled(wpa_s->global->p2p);
 251 }
 252
 253
 254 static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
 255 {
 256         struct wpa_supplicant *wpa_s = work->wpa_s;
 257         struct wpa_driver_scan_params *params = work->ctx;
 258         int ret;
 259
 260         if (deinit) {
 261                 if (!work->started) {
 262                         wpa_scan_free_params(params);
 263                         return;
 264                 }
 265
 266                 wpa_s->p2p_scan_work = NULL;
 267                 return;
 268         }
 269
 270         ret = wpa_drv_scan(wpa_s, params);
 271         wpa_scan_free_params(params);
 272         work->ctx = NULL;
 273         if (ret) {
 274                 radio_work_done(work);
 275                 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
 276                 return;
 277         }
 278
 279         p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
 280         os_get_reltime(&wpa_s->scan_trigger_time);
 281         wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
 282         wpa_s->own_scan_requested = 1;
 283         wpa_s->p2p_scan_work = work;
 284 }
 285
 286
 287 static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
 288                                           int freq)
 289 {
 290         if (wpa_s->global->p2p_24ghz_social_channels &&
 291             (freq == 2412 || freq == 2437 || freq == 2462)) {
 292                 /*
 293                  * Search all social channels regardless of whether these have
 294                  * been disabled for P2P operating channel use to avoid missing
 295                  * peers.
 296                  */
 297                 return 1;
 298         }
 299         return p2p_supported_freq(wpa_s->global->p2p, freq);
 300 }
 301
 302
 303 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
 304                          unsigned int num_req_dev_types,
 305                          const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
 306 {
 307         struct wpa_supplicant *wpa_s = ctx;
 308         struct wpa_driver_scan_params *params = NULL;
 309         struct wpabuf *wps_ie, *ies;
 310         unsigned int num_channels = 0;
 311         int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
 312         size_t ielen;
 313         u8 *n, i;
 314
 315         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 316                 return -1;
 317
 318         if (wpa_s->p2p_scan_work) {
 319                 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
 320                 return -1;
 321         }
 322
 323         params = os_zalloc(sizeof(*params));
 324         if (params == NULL)
 325                 return -1;
 326
 327         /* P2P Wildcard SSID */
 328         params->num_ssids = 1;
 329         n = os_malloc(P2P_WILDCARD_SSID_LEN);
 330         if (n == NULL)
 331                 goto fail;
 332         os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
 333         params->ssids[0].ssid = n;
 334         params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
 335
 336         wpa_s->wps->dev.p2p = 1;
 337         wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
 338                                         wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
 339                                         num_req_dev_types, req_dev_types);
 340         if (wps_ie == NULL)
 341                 goto fail;
 342
 343         ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
 344         ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
 345         if (ies == NULL) {
 346                 wpabuf_free(wps_ie);
 347                 goto fail;
 348         }
 349         wpabuf_put_buf(ies, wps_ie);
 350         wpabuf_free(wps_ie);
 351
 352         p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
 353
 354         params->p2p_probe = 1;
 355         n = os_malloc(wpabuf_len(ies));
 356         if (n == NULL) {
 357                 wpabuf_free(ies);
 358                 goto fail;
 359         }
 360         os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
 361         params->extra_ies = n;
 362         params->extra_ies_len = wpabuf_len(ies);
 363         wpabuf_free(ies);
 364
 365         switch (type) {
 366         case P2P_SCAN_SOCIAL:
 367                 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
 368                                           sizeof(int));
 369                 if (params->freqs == NULL)
 370                         goto fail;
 371                 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
 372                         if (wpas_p2p_search_social_channel(
 373                                     wpa_s, social_channels_freq[i]))
 374                                 params->freqs[num_channels++] =
 375                                         social_channels_freq[i];
 376                 }
 377                 params->freqs[num_channels++] = 0;
 378                 break;
 379         case P2P_SCAN_FULL:
 380                 break;
 381         case P2P_SCAN_SPECIFIC:
 382                 params->freqs = os_calloc(2, sizeof(int));
 383                 if (params->freqs == NULL)
 384                         goto fail;
 385                 params->freqs[0] = freq;
 386                 params->freqs[1] = 0;
 387                 break;
 388         case P2P_SCAN_SOCIAL_PLUS_ONE:
 389                 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
 390                                           sizeof(int));
 391                 if (params->freqs == NULL)
 392                         goto fail;
 393                 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
 394                         if (wpas_p2p_search_social_channel(
 395                                     wpa_s, social_channels_freq[i]))
 396                                 params->freqs[num_channels++] =
 397                                         social_channels_freq[i];
 398                 }
 399                 if (p2p_supported_freq(wpa_s->global->p2p, freq))
 400                         params->freqs[num_channels++] = freq;
 401                 params->freqs[num_channels++] = 0;
 402                 break;
 403         }
 404
 405         radio_remove_works(wpa_s, "p2p-scan", 0);
 406         if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
 407                            params) < 0)
 408                 goto fail;
 409         return 0;
 410
 411 fail:
 412         wpa_scan_free_params(params);
 413         return -1;
 414 }
 415
 416
 417 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
 418 {
 419         switch (p2p_group_interface) {
 420         case P2P_GROUP_INTERFACE_PENDING:
 421                 return WPA_IF_P2P_GROUP;
 422         case P2P_GROUP_INTERFACE_GO:
 423                 return WPA_IF_P2P_GO;
 424         case P2P_GROUP_INTERFACE_CLIENT:
 425                 return WPA_IF_P2P_CLIENT;
 426         }
 427
 428         return WPA_IF_P2P_GROUP;
 429 }
 430
 431
 432 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
 433                                                   const u8 *ssid,
 434                                                   size_t ssid_len, int *go)
 435 {
 436         struct wpa_ssid *s;
 437
 438         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 439                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 440                         if (s->disabled != 0 || !s->p2p_group ||
 441                             s->ssid_len != ssid_len ||
 442                             os_memcmp(ssid, s->ssid, ssid_len) != 0)
 443                                 continue;
 444                         if (s->mode == WPAS_MODE_P2P_GO &&
 445                             s != wpa_s->current_ssid)
 446                                 continue;
 447                         if (go)
 448                                 *go = s->mode == WPAS_MODE_P2P_GO;
 449                         return wpa_s;
 450                 }
 451         }
 452
 453         return NULL;
 454 }
 455
 456
 457 static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
 458 {
 459         struct wpa_supplicant *wpa_s = eloop_ctx;
 460         wpa_printf(MSG_DEBUG,
 461                    "P2P: Complete previously requested removal of %s",
 462                    wpa_s->ifname);
 463         wpas_p2p_disconnect(wpa_s);
 464 }
 465
 466
 467 static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
 468                                       struct wpa_supplicant *calling_wpa_s)
 469 {
 470         if (calling_wpa_s == wpa_s && wpa_s &&
 471             wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
 472                 /*
 473                  * The calling wpa_s instance is going to be removed. Do that
 474                  * from an eloop callback to keep the instance available until
 475                  * the caller has returned. This my be needed, e.g., to provide
 476                  * control interface responses on the per-interface socket.
 477                  */
 478                 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
 479                                            wpa_s, NULL) < 0)
 480                         return -1;
 481                 return 0;
 482         }
 483
 484         return wpas_p2p_disconnect(wpa_s);
 485 }
 486
 487
 488 /* Determine total number of clients in active groups where we are the GO */
 489 static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
 490 {
 491         unsigned int count = 0;
 492         struct wpa_ssid *s;
 493
 494         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 495                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 496                         wpa_printf(MSG_DEBUG,
 497                                    "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
 498                                    wpa_s, s, s->disabled, s->p2p_group,
 499                                    s->mode);
 500                         if (!s->disabled && s->p2p_group &&
 501                             s->mode == WPAS_MODE_P2P_GO) {
 502                                 count += p2p_get_group_num_members(
 503                                         wpa_s->p2p_group);
 504                         }
 505                 }
 506         }
 507
 508         return count;
 509 }
 510
 511
 512 /* Find an interface for a P2P group where we are the GO */
 513 static struct wpa_supplicant *
 514 wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
 515 {
 516         struct wpa_supplicant *save = NULL;
 517         struct wpa_ssid *s;
 518
 519         if (!wpa_s)
 520                 return NULL;
 521
 522         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 523                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 524                         if (s->disabled || !s->p2p_group ||
 525                             s->mode != WPAS_MODE_P2P_GO)
 526                                 continue;
 527
 528                         /* Prefer a group with connected clients */
 529                         if (p2p_get_group_num_members(wpa_s->p2p_group))
 530                                 return wpa_s;
 531                         save = wpa_s;
 532                 }
 533         }
 534
 535         /* No group with connected clients, so pick the one without (if any) */
 536         return save;
 537 }
 538
 539
 540 /* Find an active P2P group where we are the GO */
 541 static struct wpa_ssid * wpas_p2p_group_go_ssid(struct wpa_supplicant *wpa_s,
 542                                                 u8 *bssid)
 543 {
 544         struct wpa_ssid *s, *empty = NULL;
 545
 546         if (!wpa_s)
 547                 return 0;
 548
 549         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 550                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 551                         if (s->disabled || !s->p2p_group ||
 552                             s->mode != WPAS_MODE_P2P_GO)
 553                                 continue;
 554
 555                         os_memcpy(bssid, wpa_s->own_addr, ETH_ALEN);
 556                         if (p2p_get_group_num_members(wpa_s->p2p_group))
 557                                 return s;
 558                         empty = s;
 559                 }
 560         }
 561
 562         return empty;
 563 }
 564
 565
 566 /* Find a persistent group where we are the GO */
 567 static struct wpa_ssid *
 568 wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
 569 {
 570         struct wpa_ssid *s;
 571
 572         for (s = wpa_s->conf->ssid; s; s = s->next) {
 573                 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
 574                         return s;
 575         }
 576
 577         return NULL;
 578 }
 579
 580
 581 static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role)
 582 {
 583         struct wpa_supplicant *wpa_s = ctx, *tmp_wpa_s;
 584         struct wpa_ssid *s;
 585         u8 conncap = P2PS_SETUP_NONE;
 586         unsigned int owned_members = 0;
 587         unsigned int owner = 0;
 588         unsigned int client = 0;
 589         struct wpa_supplicant *go_wpa_s;
 590         struct wpa_ssid *persistent_go;
 591         int p2p_no_group_iface;
 592
 593         wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
 594
 595         /*
 596          * For non-concurrent capable devices:
 597          * If persistent_go, then no new.
 598          * If GO, then no client.
 599          * If client, then no GO.
 600          */
 601         go_wpa_s = wpas_p2p_get_go_group(wpa_s);
 602         persistent_go = wpas_p2p_get_persistent_go(wpa_s);
 603         p2p_no_group_iface = wpa_s->conf->p2p_no_group_iface;
 604
 605         wpa_printf(MSG_DEBUG, "P2P: GO(iface)=%p persistent(ssid)=%p",
 606                    go_wpa_s, persistent_go);
 607
 608         for (tmp_wpa_s = wpa_s->global->ifaces; tmp_wpa_s;
 609              tmp_wpa_s = tmp_wpa_s->next) {
 610                 for (s = tmp_wpa_s->conf->ssid; s; s = s->next) {
 611                         wpa_printf(MSG_DEBUG,
 612                                    "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
 613                                    tmp_wpa_s, s, s->disabled,
 614                                    s->p2p_group, s->mode);
 615                         if (!s->disabled && s->p2p_group) {
 616                                 if (s->mode == WPAS_MODE_P2P_GO) {
 617                                         owned_members +=
 618                                                 p2p_get_group_num_members(
 619                                                         tmp_wpa_s->p2p_group);
 620                                         owner++;
 621                                 } else
 622                                         client++;
 623                         }
 624                 }
 625         }
 626
 627         /* If not concurrent, restrict our choices */
 628         if (p2p_no_group_iface) {
 629                 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
 630
 631                 if (client)
 632                         return P2PS_SETUP_NONE;
 633
 634                 if (go_wpa_s) {
 635                         if (role == P2PS_SETUP_CLIENT ||
 636                             incoming == P2PS_SETUP_GROUP_OWNER ||
 637                             p2p_client_limit_reached(go_wpa_s->p2p_group))
 638                                 return P2PS_SETUP_NONE;
 639
 640                         return P2PS_SETUP_GROUP_OWNER;
 641                 }
 642
 643                 if (persistent_go) {
 644                         if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
 645                                 if (!incoming)
 646                                         return P2PS_SETUP_GROUP_OWNER |
 647                                                 P2PS_SETUP_CLIENT;
 648                                 if (incoming == P2PS_SETUP_NEW) {
 649                                         u8 r;
 650
 651                                         if (os_get_random(&r, sizeof(r)) < 0 ||
 652                                             (r & 1))
 653                                                 return P2PS_SETUP_CLIENT;
 654                                         return P2PS_SETUP_GROUP_OWNER;
 655                                 }
 656                         }
 657                 }
 658         }
 659
 660         /* If a required role has been specified, handle it here */
 661         if (role && role != P2PS_SETUP_NEW) {
 662                 switch (incoming) {
 663                 case P2PS_SETUP_NONE:
 664                 case P2PS_SETUP_NEW:
 665                 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
 666                 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
 667                         conncap = role;
 668                         goto grp_owner;
 669
 670                 case P2PS_SETUP_GROUP_OWNER:
 671                         /*
 672                          * Must be a complimentary role - cannot be a client to
 673                          * more than one peer.
 674                          */
 675                         if (incoming == role || client)
 676                                 return P2PS_SETUP_NONE;
 677
 678                         return P2PS_SETUP_CLIENT;
 679
 680                 case P2PS_SETUP_CLIENT:
 681                         /* Must be a complimentary role */
 682                         if (incoming != role) {
 683                                 conncap = P2PS_SETUP_GROUP_OWNER;
 684                                 goto grp_owner;
 685                         }
 686
 687                 default:
 688                         return P2PS_SETUP_NONE;
 689                 }
 690         }
 691
 692         /*
 693          * For now, we only will support ownership of one group, and being a
 694          * client of one group. Therefore, if we have either an existing GO
 695          * group, or an existing client group, we will not do a new GO
 696          * negotiation, but rather try to re-use the existing groups.
 697          */
 698         switch (incoming) {
 699         case P2PS_SETUP_NONE:
 700         case P2PS_SETUP_NEW:
 701                 if (client)
 702                         conncap = P2PS_SETUP_GROUP_OWNER;
 703                 else if (!owned_members)
 704                         conncap = P2PS_SETUP_NEW;
 705                 else if (incoming == P2PS_SETUP_NONE)
 706                         conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
 707                 else
 708                         conncap = P2PS_SETUP_CLIENT;
 709                 break;
 710
 711         case P2PS_SETUP_CLIENT:
 712                 conncap = P2PS_SETUP_GROUP_OWNER;
 713                 break;
 714
 715         case P2PS_SETUP_GROUP_OWNER:
 716                 if (!client)
 717                         conncap = P2PS_SETUP_CLIENT;
 718                 break;
 719
 720         case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
 721         case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
 722                 if (client)
 723                         conncap = P2PS_SETUP_GROUP_OWNER;
 724                 else {
 725                         u8 r;
 726
 727                         if (os_get_random(&r, sizeof(r)) < 0 ||
 728                             (r & 1))
 729                                 conncap = P2PS_SETUP_CLIENT;
 730                         else
 731                                 conncap = P2PS_SETUP_GROUP_OWNER;
 732                 }
 733                 break;
 734
 735         default:
 736                 return P2PS_SETUP_NONE;
 737         }
 738
 739 grp_owner:
 740         if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
 741             (!incoming && (conncap & P2PS_SETUP_NEW))) {
 742                 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
 743                         conncap &= ~P2PS_SETUP_GROUP_OWNER;
 744                 wpa_printf(MSG_DEBUG, "P2P: GOs:%d members:%d conncap:%d",
 745                            owner, owned_members, conncap);
 746
 747                 s = wpas_p2p_get_persistent_go(wpa_s);
 748
 749                 if (!s && !owner && p2p_no_group_iface) {
 750                         p2p_set_intended_addr(wpa_s->global->p2p,
 751                                               wpa_s->own_addr);
 752                 } else if (!s && !owner) {
 753                         if (wpas_p2p_add_group_interface(wpa_s,
 754                                                          WPA_IF_P2P_GO) < 0) {
 755                                 wpa_printf(MSG_ERROR,
 756                                            "P2P: Failed to allocate a new interface for the group");
 757                                 return P2PS_SETUP_NONE;
 758                         }
 759                         wpa_s->global->pending_group_iface_for_p2ps = 1;
 760                         p2p_set_intended_addr(wpa_s->global->p2p,
 761                                               wpa_s->pending_interface_addr);
 762                 }
 763         }
 764
 765         return conncap;
 766 }
 767
 768
 769 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
 770                                  enum p2p_group_removal_reason removal_reason)
 771 {
 772         struct wpa_ssid *ssid;
 773         char *gtype;
 774         const char *reason;
 775
 776         ssid = wpa_s->current_ssid;
 777         if (ssid == NULL) {
 778                 /*
 779                  * The current SSID was not known, but there may still be a
 780                  * pending P2P group interface waiting for provisioning or a
 781                  * P2P group that is trying to reconnect.
 782                  */
 783                 ssid = wpa_s->conf->ssid;
 784                 while (ssid) {
 785                         if (ssid->p2p_group && ssid->disabled != 2)
 786                                 break;
 787                         ssid = ssid->next;
 788                 }
 789                 if (ssid == NULL &&
 790                         wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
 791                 {
 792                         wpa_printf(MSG_ERROR, "P2P: P2P group interface "
 793                                    "not found");
 794                         return -1;
 795                 }
 796         }
 797         if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
 798                 gtype = "GO";
 799         else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
 800                  (ssid && ssid->mode == WPAS_MODE_INFRA)) {
 801                 wpa_s->reassociate = 0;
 802                 wpa_s->disconnected = 1;
 803                 gtype = "client";
 804         } else
 805                 gtype = "GO";
 806
 807         if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
 808                 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
 809
 810         if (os_strcmp(gtype, "client") == 0) {
 811                 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
 812                 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
 813                                                 wpa_s, NULL)) {
 814                         wpa_printf(MSG_DEBUG,
 815                                    "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
 816                         removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
 817                         eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
 818                                              wpa_s, NULL);
 819                 }
 820         }
 821
 822         if (wpa_s->cross_connect_in_use) {
 823                 wpa_s->cross_connect_in_use = 0;
 824                 wpa_msg_global(wpa_s->parent, MSG_INFO,
 825                                P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
 826                                wpa_s->ifname, wpa_s->cross_connect_uplink);
 827         }
 828         switch (removal_reason) {
 829         case P2P_GROUP_REMOVAL_REQUESTED:
 830                 reason = " reason=REQUESTED";
 831                 break;
 832         case P2P_GROUP_REMOVAL_FORMATION_FAILED:
 833                 reason = " reason=FORMATION_FAILED";
 834                 break;
 835         case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
 836                 reason = " reason=IDLE";
 837                 break;
 838         case P2P_GROUP_REMOVAL_UNAVAILABLE:
 839                 reason = " reason=UNAVAILABLE";
 840                 break;
 841         case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
 842                 reason = " reason=GO_ENDING_SESSION";
 843                 break;
 844         case P2P_GROUP_REMOVAL_PSK_FAILURE:
 845                 reason = " reason=PSK_FAILURE";
 846                 break;
 847         case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
 848                 reason = " reason=FREQ_CONFLICT";
 849                 break;
 850         default:
 851                 reason = "";
 852                 break;
 853         }
 854         if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
 855                 wpa_msg_global(wpa_s->parent, MSG_INFO,
 856                                P2P_EVENT_GROUP_REMOVED "%s %s%s",
 857                                wpa_s->ifname, gtype, reason);
 858         }
 859
 860         if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
 861                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
 862         if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
 863                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
 864         if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
 865                                  wpa_s->parent, NULL) > 0) {
 866                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
 867                            "timeout");
 868                 wpa_s->p2p_in_provisioning = 0;
 869         }
 870
 871         wpa_s->p2p_in_invitation = 0;
 872
 873         /*
 874          * Make sure wait for the first client does not remain active after the
 875          * group has been removed.
 876          */
 877         wpa_s->global->p2p_go_wait_client.sec = 0;
 878
 879         if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
 880                 struct wpa_global *global;
 881                 char *ifname;
 882                 enum wpa_driver_if_type type;
 883                 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
 884                         wpa_s->ifname);
 885                 global = wpa_s->global;
 886                 ifname = os_strdup(wpa_s->ifname);
 887                 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
 888                 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
 889                 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
 890                 wpa_s = global->ifaces;
 891                 if (wpa_s && ifname)
 892                         wpa_drv_if_remove(wpa_s, type, ifname);
 893                 os_free(ifname);
 894                 return 1;
 895         }
 896
 897         if (!wpa_s->p2p_go_group_formation_completed) {
 898                 wpa_s->global->p2p_group_formation = NULL;
 899                 wpa_s->p2p_in_provisioning = 0;
 900         }
 901
 902         wpa_s->show_group_started = 0;
 903         os_free(wpa_s->go_params);
 904         wpa_s->go_params = NULL;
 905
 906         os_free(wpa_s->p2p_group_common_freqs);
 907         wpa_s->p2p_group_common_freqs = NULL;
 908         wpa_s->p2p_group_common_freqs_num = 0;
 909
 910         wpa_s->waiting_presence_resp = 0;
 911
 912         wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
 913         if (ssid && (ssid->p2p_group ||
 914                      ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 915                      (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
 916                 int id = ssid->id;
 917                 if (ssid == wpa_s->current_ssid) {
 918                         wpa_sm_set_config(wpa_s->wpa, NULL);
 919                         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 920                         wpa_s->current_ssid = NULL;
 921                 }
 922                 /*
 923                  * Networks objects created during any P2P activities are not
 924                  * exposed out as they might/will confuse certain non-P2P aware
 925                  * applications since these network objects won't behave like
 926                  * regular ones.
 927                  *
 928                  * Likewise, we don't send out network removed signals for such
 929                  * network objects.
 930                  */
 931                 wpa_config_remove_network(wpa_s->conf, id);
 932                 wpa_supplicant_clear_status(wpa_s);
 933                 wpa_supplicant_cancel_sched_scan(wpa_s);
 934         } else {
 935                 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
 936                            "found");
 937         }
 938         if (wpa_s->ap_iface)
 939                 wpa_supplicant_ap_deinit(wpa_s);
 940         else
 941                 wpa_drv_deinit_p2p_cli(wpa_s);
 942
 943         return 0;
 944 }
 945
 946
 947 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
 948                                      u8 *go_dev_addr,
 949                                      const u8 *ssid, size_t ssid_len)
 950 {
 951         struct wpa_bss *bss;
 952         const u8 *bssid;
 953         struct wpabuf *p2p;
 954         u8 group_capab;
 955         const u8 *addr;
 956
 957         if (wpa_s->go_params)
 958                 bssid = wpa_s->go_params->peer_interface_addr;
 959         else
 960                 bssid = wpa_s->bssid;
 961
 962         bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
 963         if (bss == NULL && wpa_s->go_params &&
 964             !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
 965                 bss = wpa_bss_get_p2p_dev_addr(
 966                         wpa_s, wpa_s->go_params->peer_device_addr);
 967         if (bss == NULL) {
 968                 u8 iface_addr[ETH_ALEN];
 969                 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
 970                                            iface_addr) == 0)
 971                         bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
 972         }
 973         if (bss == NULL) {
 974                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 975                            "group is persistent - BSS " MACSTR " not found",
 976                            MAC2STR(bssid));
 977                 return 0;
 978         }
 979
 980         p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
 981         if (p2p == NULL)
 982                 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
 983                                                          P2P_IE_VENDOR_TYPE);
 984         if (p2p == NULL) {
 985                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 986                            "group is persistent - BSS " MACSTR
 987                            " did not include P2P IE", MAC2STR(bssid));
 988                 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
 989                             (u8 *) (bss + 1), bss->ie_len);
 990                 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
 991                             ((u8 *) bss + 1) + bss->ie_len,
 992                             bss->beacon_ie_len);
 993                 return 0;
 994         }
 995
 996         group_capab = p2p_get_group_capab(p2p);
 997         addr = p2p_get_go_dev_addr(p2p);
 998         wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
 999                    "group_capab=0x%x", group_capab);
1000         if (addr) {
1001                 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1002                 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1003                            MAC2STR(addr));
1004         } else
1005                 os_memset(go_dev_addr, 0, ETH_ALEN);
1006         wpabuf_free(p2p);
1007
1008         wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1009                    "go_dev_addr=" MACSTR,
1010                    MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1011
1012         return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1013 }
1014
1015
1016 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1017                                            struct wpa_ssid *ssid,
1018                                            const u8 *go_dev_addr)
1019 {
1020         struct wpa_ssid *s;
1021         int changed = 0;
1022
1023         wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1024                    "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1025         for (s = wpa_s->conf->ssid; s; s = s->next) {
1026                 if (s->disabled == 2 &&
1027                     os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1028                     s->ssid_len == ssid->ssid_len &&
1029                     os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1030                         break;
1031         }
1032
1033         if (s) {
1034                 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1035                            "entry");
1036                 if (ssid->passphrase && !s->passphrase)
1037                         changed = 1;
1038                 else if (ssid->passphrase && s->passphrase &&
1039                          os_strcmp(ssid->passphrase, s->passphrase) != 0)
1040                         changed = 1;
1041         } else {
1042                 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1043                            "entry");
1044                 changed = 1;
1045                 s = wpa_config_add_network(wpa_s->conf);
1046                 if (s == NULL)
1047                         return -1;
1048
1049                 /*
1050                  * Instead of network_added we emit persistent_group_added
1051                  * notification. Also to keep the defense checks in
1052                  * persistent_group obj registration method, we set the
1053                  * relevant flags in s to designate it as a persistent group.
1054                  */
1055                 s->p2p_group = 1;
1056                 s->p2p_persistent_group = 1;
1057                 wpas_notify_persistent_group_added(wpa_s, s);
1058                 wpa_config_set_network_defaults(s);
1059         }
1060
1061         s->p2p_group = 1;
1062         s->p2p_persistent_group = 1;
1063         s->disabled = 2;
1064         s->bssid_set = 1;
1065         os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1066         s->mode = ssid->mode;
1067         s->auth_alg = WPA_AUTH_ALG_OPEN;
1068         s->key_mgmt = WPA_KEY_MGMT_PSK;
1069         s->proto = WPA_PROTO_RSN;
1070         s->pairwise_cipher = WPA_CIPHER_CCMP;
1071         s->export_keys = 1;
1072         if (ssid->passphrase) {
1073                 os_free(s->passphrase);
1074                 s->passphrase = os_strdup(ssid->passphrase);
1075         }
1076         if (ssid->psk_set) {
1077                 s->psk_set = 1;
1078                 os_memcpy(s->psk, ssid->psk, 32);
1079         }
1080         if (s->passphrase && !s->psk_set)
1081                 wpa_config_update_psk(s);
1082         if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1083                 os_free(s->ssid);
1084                 s->ssid = os_malloc(ssid->ssid_len);
1085         }
1086         if (s->ssid) {
1087                 s->ssid_len = ssid->ssid_len;
1088                 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1089         }
1090         if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1091                 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1092                 wpa_s->global->add_psk = NULL;
1093                 changed = 1;
1094         }
1095
1096         if (changed && wpa_s->conf->update_config &&
1097             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1098                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1099         }
1100
1101         return s->id;
1102 }
1103
1104
1105 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1106                                                  const u8 *addr)
1107 {
1108         struct wpa_ssid *ssid, *s;
1109         u8 *n;
1110         size_t i;
1111         int found = 0;
1112
1113         ssid = wpa_s->current_ssid;
1114         if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1115             !ssid->p2p_persistent_group)
1116                 return;
1117
1118         for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
1119                 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1120                         continue;
1121
1122                 if (s->ssid_len == ssid->ssid_len &&
1123                     os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1124                         break;
1125         }
1126
1127         if (s == NULL)
1128                 return;
1129
1130         for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1131                 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1132                               ETH_ALEN) != 0)
1133                         continue;
1134
1135                 if (i == s->num_p2p_clients - 1)
1136                         return; /* already the most recent entry */
1137
1138                 /* move the entry to mark it most recent */
1139                 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1140                            s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1141                            (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1142                 os_memcpy(s->p2p_client_list +
1143                           (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1144                           ETH_ALEN);
1145                 os_memset(s->p2p_client_list +
1146                           (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1147                           0xff, ETH_ALEN);
1148                 found = 1;
1149                 break;
1150         }
1151
1152         if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1153                 n = os_realloc_array(s->p2p_client_list,
1154                                      s->num_p2p_clients + 1, 2 * ETH_ALEN);
1155                 if (n == NULL)
1156                         return;
1157                 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1158                           ETH_ALEN);
1159                 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1160                           0xff, ETH_ALEN);
1161                 s->p2p_client_list = n;
1162                 s->num_p2p_clients++;
1163         } else if (!found && s->p2p_client_list) {
1164                 /* Not enough room for an additional entry - drop the oldest
1165                  * entry */
1166                 os_memmove(s->p2p_client_list,
1167                            s->p2p_client_list + 2 * ETH_ALEN,
1168                            (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1169                 os_memcpy(s->p2p_client_list +
1170                           (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1171                           addr, ETH_ALEN);
1172                 os_memset(s->p2p_client_list +
1173                           (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1174                           0xff, ETH_ALEN);
1175         }
1176
1177         if (wpa_s->parent->conf->update_config &&
1178             wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1179                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1180 }
1181
1182
1183 static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1184                                    int go, struct wpa_ssid *ssid, int freq,
1185                                    const u8 *psk, const char *passphrase,
1186                                    const u8 *go_dev_addr, int persistent,
1187                                    const char *extra)
1188 {
1189         const char *ssid_txt;
1190         char psk_txt[65];
1191
1192         if (psk)
1193                 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1194         else
1195                 psk_txt[0] = '\0';
1196
1197         if (ssid)
1198                 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1199         else
1200                 ssid_txt = "";
1201
1202         if (passphrase && passphrase[0] == '\0')
1203                 passphrase = NULL;
1204
1205         /*
1206          * Include PSK/passphrase only in the control interface message and
1207          * leave it out from the debug log entry.
1208          */
1209         wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
1210                             P2P_EVENT_GROUP_STARTED
1211                             "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1212                             MACSTR "%s%s",
1213                             wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1214                             psk ? " psk=" : "", psk_txt,
1215                             passphrase ? " passphrase=\"" : "",
1216                             passphrase ? passphrase : "",
1217                             passphrase ? "\"" : "",
1218                             MAC2STR(go_dev_addr),
1219                             persistent ? " [PERSISTENT]" : "", extra);
1220         wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1221                    "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1222                    wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1223                    MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1224                    extra);
1225 }
1226
1227
1228 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1229                                            int success)
1230 {
1231         struct wpa_ssid *ssid;
1232         int client;
1233         int persistent;
1234         u8 go_dev_addr[ETH_ALEN];
1235         int network_id = -1;
1236
1237         /*
1238          * This callback is likely called for the main interface. Update wpa_s
1239          * to use the group interface if a new interface was created for the
1240          * group.
1241          */
1242         if (wpa_s->global->p2p_group_formation)
1243                 wpa_s = wpa_s->global->p2p_group_formation;
1244         if (wpa_s->p2p_go_group_formation_completed) {
1245                 wpa_s->global->p2p_group_formation = NULL;
1246                 wpa_s->p2p_in_provisioning = 0;
1247         }
1248         wpa_s->p2p_in_invitation = 0;
1249         wpa_s->group_formation_reported = 1;
1250
1251         if (!success) {
1252                 wpa_msg_global(wpa_s->parent, MSG_INFO,
1253                                P2P_EVENT_GROUP_FORMATION_FAILURE);
1254                 wpas_p2p_group_delete(wpa_s,
1255                                       P2P_GROUP_REMOVAL_FORMATION_FAILED);
1256                 return;
1257         }
1258
1259         wpa_msg_global(wpa_s->parent, MSG_INFO,
1260                        P2P_EVENT_GROUP_FORMATION_SUCCESS);
1261
1262         ssid = wpa_s->current_ssid;
1263         if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1264                 ssid->mode = WPAS_MODE_P2P_GO;
1265                 p2p_group_notif_formation_done(wpa_s->p2p_group);
1266                 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1267         }
1268
1269         persistent = 0;
1270         if (ssid) {
1271                 client = ssid->mode == WPAS_MODE_INFRA;
1272                 if (ssid->mode == WPAS_MODE_P2P_GO) {
1273                         persistent = ssid->p2p_persistent_group;
1274                         os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1275                                   ETH_ALEN);
1276                 } else
1277                         persistent = wpas_p2p_persistent_group(wpa_s,
1278                                                                go_dev_addr,
1279                                                                ssid->ssid,
1280                                                                ssid->ssid_len);
1281         } else {
1282                 client = wpa_s->p2p_group_interface ==
1283                         P2P_GROUP_INTERFACE_CLIENT;
1284                 os_memset(go_dev_addr, 0, ETH_ALEN);
1285         }
1286
1287         wpa_s->show_group_started = 0;
1288         if (client) {
1289                 /*
1290                  * Indicate event only after successfully completed 4-way
1291                  * handshake, i.e., when the interface is ready for data
1292                  * packets.
1293                  */
1294                 wpa_s->show_group_started = 1;
1295         } else {
1296                 wpas_p2p_group_started(wpa_s, 1, ssid,
1297                                        ssid ? ssid->frequency : 0,
1298                                        ssid && ssid->passphrase == NULL &&
1299                                        ssid->psk_set ? ssid->psk : NULL,
1300                                        ssid ? ssid->passphrase : NULL,
1301                                        go_dev_addr, persistent, "");
1302                 wpas_p2p_cross_connect_setup(wpa_s);
1303                 wpas_p2p_set_group_idle_timeout(wpa_s);
1304         }
1305
1306         if (persistent)
1307                 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
1308                                                              ssid, go_dev_addr);
1309         else {
1310                 os_free(wpa_s->global->add_psk);
1311                 wpa_s->global->add_psk = NULL;
1312         }
1313         if (network_id < 0 && ssid)
1314                 network_id = ssid->id;
1315         if (!client) {
1316                 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1317                 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1318         }
1319 }
1320
1321
1322 struct send_action_work {
1323         unsigned int freq;
1324         u8 dst[ETH_ALEN];
1325         u8 src[ETH_ALEN];
1326         u8 bssid[ETH_ALEN];
1327         size_t len;
1328         unsigned int wait_time;
1329         u8 buf[0];
1330 };
1331
1332
1333 static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1334                                               void *timeout_ctx)
1335 {
1336         struct wpa_supplicant *wpa_s = eloop_ctx;
1337
1338         if (!wpa_s->p2p_send_action_work)
1339                 return;
1340
1341         wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1342         os_free(wpa_s->p2p_send_action_work->ctx);
1343         radio_work_done(wpa_s->p2p_send_action_work);
1344         wpa_s->p2p_send_action_work = NULL;
1345 }
1346
1347
1348 static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1349 {
1350         if (wpa_s->p2p_send_action_work) {
1351                 struct send_action_work *awork;
1352                 awork = wpa_s->p2p_send_action_work->ctx;
1353                 if (awork->wait_time == 0) {
1354                         os_free(awork);
1355                         radio_work_done(wpa_s->p2p_send_action_work);
1356                         wpa_s->p2p_send_action_work = NULL;
1357                 } else {
1358                         /*
1359                          * In theory, this should not be needed, but number of
1360                          * places in the P2P code is still using non-zero wait
1361                          * time for the last Action frame in the sequence and
1362                          * some of these do not call send_action_done().
1363                          */
1364                         eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1365                                              wpa_s, NULL);
1366                         eloop_register_timeout(
1367                                 0, awork->wait_time * 1000,
1368                                 wpas_p2p_send_action_work_timeout,
1369                                 wpa_s, NULL);
1370                 }
1371         }
1372 }
1373
1374
1375 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1376                                            unsigned int freq,
1377                                            const u8 *dst, const u8 *src,
1378                                            const u8 *bssid,
1379                                            const u8 *data, size_t data_len,
1380                                            enum offchannel_send_action_result
1381                                            result)
1382 {
1383         enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1384
1385         wpas_p2p_action_tx_clear(wpa_s);
1386
1387         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1388                 return;
1389
1390         switch (result) {
1391         case OFFCHANNEL_SEND_ACTION_SUCCESS:
1392                 res = P2P_SEND_ACTION_SUCCESS;
1393                 break;
1394         case OFFCHANNEL_SEND_ACTION_NO_ACK:
1395                 res = P2P_SEND_ACTION_NO_ACK;
1396                 break;
1397         case OFFCHANNEL_SEND_ACTION_FAILED:
1398                 res = P2P_SEND_ACTION_FAILED;
1399                 break;
1400         }
1401
1402         p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1403
1404         if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1405             wpa_s->pending_pd_before_join &&
1406             (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1407              os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1408             wpa_s->p2p_fallback_to_go_neg) {
1409                 wpa_s->pending_pd_before_join = 0;
1410                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1411                         "during p2p_connect-auto");
1412                 wpa_msg_global(wpa_s->parent, MSG_INFO,
1413                                P2P_EVENT_FALLBACK_TO_GO_NEG
1414                                "reason=no-ACK-to-PD-Req");
1415                 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1416                 return;
1417         }
1418 }
1419
1420
1421 static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1422 {
1423         struct wpa_supplicant *wpa_s = work->wpa_s;
1424         struct send_action_work *awork = work->ctx;
1425
1426         if (deinit) {
1427                 if (work->started) {
1428                         eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1429                                              wpa_s, NULL);
1430                         wpa_s->p2p_send_action_work = NULL;
1431                         offchannel_send_action_done(wpa_s);
1432                 }
1433                 os_free(awork);
1434                 return;
1435         }
1436
1437         if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1438                                    awork->bssid, awork->buf, awork->len,
1439                                    awork->wait_time,
1440                                    wpas_p2p_send_action_tx_status, 1) < 0) {
1441                 os_free(awork);
1442                 radio_work_done(work);
1443                 return;
1444         }
1445         wpa_s->p2p_send_action_work = work;
1446 }
1447
1448
1449 static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1450                                  unsigned int freq, const u8 *dst,
1451                                  const u8 *src, const u8 *bssid, const u8 *buf,
1452                                  size_t len, unsigned int wait_time)
1453 {
1454         struct send_action_work *awork;
1455
1456         if (wpa_s->p2p_send_action_work) {
1457                 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1458                 return -1;
1459         }
1460
1461         awork = os_zalloc(sizeof(*awork) + len);
1462         if (awork == NULL)
1463                 return -1;
1464
1465         awork->freq = freq;
1466         os_memcpy(awork->dst, dst, ETH_ALEN);
1467         os_memcpy(awork->src, src, ETH_ALEN);
1468         os_memcpy(awork->bssid, bssid, ETH_ALEN);
1469         awork->len = len;
1470         awork->wait_time = wait_time;
1471         os_memcpy(awork->buf, buf, len);
1472
1473         if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1474                            wpas_send_action_cb, awork) < 0) {
1475                 os_free(awork);
1476                 return -1;
1477         }
1478
1479         return 0;
1480 }
1481
1482
1483 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1484                             const u8 *src, const u8 *bssid, const u8 *buf,
1485                             size_t len, unsigned int wait_time)
1486 {
1487         struct wpa_supplicant *wpa_s = ctx;
1488         int listen_freq = -1, send_freq = -1;
1489
1490         if (wpa_s->p2p_listen_work)
1491                 listen_freq = wpa_s->p2p_listen_work->freq;
1492         if (wpa_s->p2p_send_action_work)
1493                 send_freq = wpa_s->p2p_send_action_work->freq;
1494         if (listen_freq != (int) freq && send_freq != (int) freq) {
1495                 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1496                            listen_freq, send_freq);
1497                 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1498                                              len, wait_time);
1499         }
1500
1501         wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1502         return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1503                                       wait_time,
1504                                       wpas_p2p_send_action_tx_status, 1);
1505 }
1506
1507
1508 static void wpas_send_action_done(void *ctx)
1509 {
1510         struct wpa_supplicant *wpa_s = ctx;
1511
1512         if (wpa_s->p2p_send_action_work) {
1513                 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1514                                      wpa_s, NULL);
1515                 os_free(wpa_s->p2p_send_action_work->ctx);
1516                 radio_work_done(wpa_s->p2p_send_action_work);
1517                 wpa_s->p2p_send_action_work = NULL;
1518         }
1519
1520         offchannel_send_action_done(wpa_s);
1521 }
1522
1523
1524 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1525                                     struct p2p_go_neg_results *params)
1526 {
1527         if (wpa_s->go_params == NULL) {
1528                 wpa_s->go_params = os_malloc(sizeof(*params));
1529                 if (wpa_s->go_params == NULL)
1530                         return -1;
1531         }
1532         os_memcpy(wpa_s->go_params, params, sizeof(*params));
1533         return 0;
1534 }
1535
1536
1537 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1538                                     struct p2p_go_neg_results *res)
1539 {
1540         wpa_s->group_formation_reported = 0;
1541         wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1542                    " dev_addr " MACSTR " wps_method %d",
1543                    MAC2STR(res->peer_interface_addr),
1544                    MAC2STR(res->peer_device_addr), res->wps_method);
1545         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1546                           res->ssid, res->ssid_len);
1547         wpa_supplicant_ap_deinit(wpa_s);
1548         wpas_copy_go_neg_results(wpa_s, res);
1549         if (res->wps_method == WPS_PBC) {
1550                 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1551 #ifdef CONFIG_WPS_NFC
1552         } else if (res->wps_method == WPS_NFC) {
1553                 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1554                                    res->peer_interface_addr,
1555                                    wpa_s->parent->p2p_oob_dev_pw,
1556                                    wpa_s->parent->p2p_oob_dev_pw_id, 1,
1557                                    wpa_s->parent->p2p_oob_dev_pw_id ==
1558                                    DEV_PW_NFC_CONNECTION_HANDOVER ?
1559                                    wpa_s->parent->p2p_peer_oob_pubkey_hash :
1560                                    NULL,
1561                                    NULL, 0, 0);
1562 #endif /* CONFIG_WPS_NFC */
1563         } else {
1564                 u16 dev_pw_id = DEV_PW_DEFAULT;
1565                 if (wpa_s->p2p_wps_method == WPS_P2PS)
1566                         dev_pw_id = DEV_PW_P2PS_DEFAULT;
1567                 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1568                         dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1569                 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1570                                    wpa_s->p2p_pin, 1, dev_pw_id);
1571         }
1572 }
1573
1574
1575 static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1576                                   struct wpa_ssid *ssid)
1577 {
1578         struct wpa_ssid *persistent;
1579         struct psk_list_entry *psk;
1580         struct hostapd_data *hapd;
1581
1582         if (!wpa_s->ap_iface)
1583                 return;
1584
1585         persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1586                                              ssid->ssid_len);
1587         if (persistent == NULL)
1588                 return;
1589
1590         hapd = wpa_s->ap_iface->bss[0];
1591
1592         dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1593                          list) {
1594                 struct hostapd_wpa_psk *hpsk;
1595
1596                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1597                         MACSTR " psk=%d",
1598                         MAC2STR(psk->addr), psk->p2p);
1599                 hpsk = os_zalloc(sizeof(*hpsk));
1600                 if (hpsk == NULL)
1601                         break;
1602                 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1603                 if (psk->p2p)
1604                         os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1605                 else
1606                         os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1607                 hpsk->next = hapd->conf->ssid.wpa_psk;
1608                 hapd->conf->ssid.wpa_psk = hpsk;
1609         }
1610 }
1611
1612
1613 static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1614 {
1615         unsigned int i;
1616
1617         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1618                 wpa_s->p2p_group_common_freqs_num);
1619
1620         for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1621                 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1622                         i, wpa_s->p2p_group_common_freqs[i]);
1623 }
1624
1625
1626 static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1627                                            struct p2p_go_neg_results *params)
1628 {
1629         unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1630
1631         wpa_s->p2p_group_common_freqs_num = 0;
1632         os_free(wpa_s->p2p_group_common_freqs);
1633         wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1634         if (!wpa_s->p2p_group_common_freqs)
1635                 return;
1636
1637         for (i = 0; i < len; i++) {
1638                 if (!wpa_s->go_params->freq_list[i])
1639                         break;
1640                 wpa_s->p2p_group_common_freqs[i] =
1641                         wpa_s->go_params->freq_list[i];
1642         }
1643         wpa_s->p2p_group_common_freqs_num = i;
1644 }
1645
1646
1647 static void p2p_config_write(struct wpa_supplicant *wpa_s)
1648 {
1649 #ifndef CONFIG_NO_CONFIG_WRITE
1650         if (wpa_s->parent->conf->update_config &&
1651             wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1652                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1653 #endif /* CONFIG_NO_CONFIG_WRITE */
1654 }
1655
1656
1657 static void p2p_go_configured(void *ctx, void *data)
1658 {
1659         struct wpa_supplicant *wpa_s = ctx;
1660         struct p2p_go_neg_results *params = data;
1661         struct wpa_ssid *ssid;
1662         int network_id = -1;
1663
1664         p2p_go_save_group_common_freqs(wpa_s, params);
1665         p2p_go_dump_common_freqs(wpa_s);
1666
1667         ssid = wpa_s->current_ssid;
1668         if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1669                 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1670                 if (wpa_s->global->p2p_group_formation == wpa_s)
1671                         wpa_s->global->p2p_group_formation = NULL;
1672                 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1673                                        params->passphrase[0] == '\0' ?
1674                                        params->psk : NULL,
1675                                        params->passphrase,
1676                                        wpa_s->global->p2p_dev_addr,
1677                                        params->persistent_group, "");
1678                 wpa_s->group_formation_reported = 1;
1679
1680                 if (wpa_s->parent->p2ps_join_addr_valid) {
1681                         wpa_dbg(wpa_s, MSG_DEBUG,
1682                                 "P2PS: Setting default PIN for " MACSTR,
1683                                 MAC2STR(wpa_s->parent->p2ps_join_addr));
1684                         wpa_supplicant_ap_wps_pin(wpa_s,
1685                                                   wpa_s->parent->p2ps_join_addr,
1686                                                   "12345670", NULL, 0, 0);
1687                         wpa_s->parent->p2ps_join_addr_valid = 0;
1688                 }
1689
1690                 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1691                 if (params->persistent_group) {
1692                         network_id = wpas_p2p_store_persistent_group(
1693                                 wpa_s->parent, ssid,
1694                                 wpa_s->global->p2p_dev_addr);
1695                         wpas_p2p_add_psk_list(wpa_s, ssid);
1696                 }
1697                 if (network_id < 0)
1698                         network_id = ssid->id;
1699                 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1700                 wpas_p2p_cross_connect_setup(wpa_s);
1701                 wpas_p2p_set_group_idle_timeout(wpa_s);
1702
1703                 if (wpa_s->p2p_first_connection_timeout) {
1704                         wpa_dbg(wpa_s, MSG_DEBUG,
1705                                 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1706                                 wpa_s->p2p_first_connection_timeout);
1707                         wpa_s->p2p_go_group_formation_completed = 0;
1708                         wpa_s->global->p2p_group_formation = wpa_s;
1709                         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1710                                              wpa_s->parent, NULL);
1711                         eloop_register_timeout(
1712                                 wpa_s->p2p_first_connection_timeout, 0,
1713                                 wpas_p2p_group_formation_timeout,
1714                                 wpa_s->parent, NULL);
1715                 }
1716
1717                 return;
1718         }
1719
1720         wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1721         if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1722                                               params->peer_interface_addr)) {
1723                 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1724                            "filtering");
1725                 return;
1726         }
1727         if (params->wps_method == WPS_PBC) {
1728                 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1729                                           params->peer_device_addr);
1730 #ifdef CONFIG_WPS_NFC
1731         } else if (params->wps_method == WPS_NFC) {
1732                 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1733                     DEV_PW_NFC_CONNECTION_HANDOVER &&
1734                     !wpa_s->parent->p2p_oob_dev_pw) {
1735                         wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1736                         return;
1737                 }
1738                 wpas_ap_wps_add_nfc_pw(
1739                         wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1740                         wpa_s->parent->p2p_oob_dev_pw,
1741                         wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1742                         wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1743 #endif /* CONFIG_WPS_NFC */
1744         } else if (wpa_s->p2p_pin[0])
1745                 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1746                                           wpa_s->p2p_pin, NULL, 0, 0);
1747         os_free(wpa_s->go_params);
1748         wpa_s->go_params = NULL;
1749 }
1750
1751
1752 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1753                               struct p2p_go_neg_results *params,
1754                               int group_formation)
1755 {
1756         struct wpa_ssid *ssid;
1757
1758         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1759         if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1760                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1761                         "results");
1762                 return;
1763         }
1764
1765         ssid = wpa_config_add_network(wpa_s->conf);
1766         if (ssid == NULL) {
1767                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1768                 return;
1769         }
1770
1771         wpa_s->show_group_started = 0;
1772         wpa_s->p2p_go_group_formation_completed = 0;
1773         wpa_s->group_formation_reported = 0;
1774
1775         wpa_config_set_network_defaults(ssid);
1776         ssid->temporary = 1;
1777         ssid->p2p_group = 1;
1778         ssid->p2p_persistent_group = params->persistent_group;
1779         ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1780                 WPAS_MODE_P2P_GO;
1781         ssid->frequency = params->freq;
1782         ssid->ht40 = params->ht40;
1783         ssid->vht = params->vht;
1784         ssid->ssid = os_zalloc(params->ssid_len + 1);
1785         if (ssid->ssid) {
1786                 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1787                 ssid->ssid_len = params->ssid_len;
1788         }
1789         ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1790         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1791         ssid->proto = WPA_PROTO_RSN;
1792         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1793         ssid->group_cipher = WPA_CIPHER_CCMP;
1794         if (params->freq > 56160) {
1795                 /*
1796                  * Enable GCMP instead of CCMP as pairwise_cipher and
1797                  * group_cipher in 60 GHz.
1798                  */
1799                 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1800                 ssid->group_cipher = WPA_CIPHER_GCMP;
1801         }
1802         if (os_strlen(params->passphrase) > 0) {
1803                 ssid->passphrase = os_strdup(params->passphrase);
1804                 if (ssid->passphrase == NULL) {
1805                         wpa_msg_global(wpa_s, MSG_ERROR,
1806                                        "P2P: Failed to copy passphrase for GO");
1807                         wpa_config_remove_network(wpa_s->conf, ssid->id);
1808                         return;
1809                 }
1810         } else
1811                 ssid->passphrase = NULL;
1812         ssid->psk_set = params->psk_set;
1813         if (ssid->psk_set)
1814                 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1815         else if (ssid->passphrase)
1816                 wpa_config_update_psk(ssid);
1817         ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1818
1819         wpa_s->ap_configured_cb = p2p_go_configured;
1820         wpa_s->ap_configured_cb_ctx = wpa_s;
1821         wpa_s->ap_configured_cb_data = wpa_s->go_params;
1822         wpa_s->scan_req = NORMAL_SCAN_REQ;
1823         wpa_s->connect_without_scan = ssid;
1824         wpa_s->reassociate = 1;
1825         wpa_s->disconnected = 0;
1826         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1827                 "start GO)");
1828         wpa_supplicant_req_scan(wpa_s, 0, 0);
1829 }
1830
1831
1832 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1833                                   const struct wpa_supplicant *src)
1834 {
1835         struct wpa_config *d;
1836         const struct wpa_config *s;
1837
1838         d = dst->conf;
1839         s = src->conf;
1840
1841 #define C(n) if (s->n) d->n = os_strdup(s->n)
1842         C(device_name);
1843         C(manufacturer);
1844         C(model_name);
1845         C(model_number);
1846         C(serial_number);
1847         C(config_methods);
1848 #undef C
1849
1850         os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1851         os_memcpy(d->sec_device_type, s->sec_device_type,
1852                   sizeof(d->sec_device_type));
1853         d->num_sec_device_types = s->num_sec_device_types;
1854
1855         d->p2p_group_idle = s->p2p_group_idle;
1856         d->p2p_intra_bss = s->p2p_intra_bss;
1857         d->persistent_reconnect = s->persistent_reconnect;
1858         d->max_num_sta = s->max_num_sta;
1859         d->pbc_in_m1 = s->pbc_in_m1;
1860         d->ignore_old_scan_res = s->ignore_old_scan_res;
1861         d->beacon_int = s->beacon_int;
1862         d->dtim_period = s->dtim_period;
1863         d->p2p_go_ctwindow = s->p2p_go_ctwindow;
1864         d->disassoc_low_ack = s->disassoc_low_ack;
1865         d->disable_scan_offload = s->disable_scan_offload;
1866         d->passive_scan = s->passive_scan;
1867
1868         if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1869                 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1870                 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1871         }
1872 }
1873
1874
1875 static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1876                                       char *ifname, size_t len)
1877 {
1878         char *ifname_ptr = wpa_s->ifname;
1879
1880         if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1881                        os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1882                 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1883         }
1884
1885         os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1886         if (os_strlen(ifname) >= IFNAMSIZ &&
1887             os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1888                 int res;
1889
1890                 /* Try to avoid going over the IFNAMSIZ length limit */
1891                 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1892                 if (os_snprintf_error(len, res) && len)
1893                         ifname[len - 1] = '\0';
1894         }
1895 }
1896
1897
1898 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1899                                         enum wpa_driver_if_type type)
1900 {
1901         char ifname[120], force_ifname[120];
1902
1903         if (wpa_s->pending_interface_name[0]) {
1904                 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1905                            "- skip creation of a new one");
1906                 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1907                         wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1908                                    "unknown?! ifname='%s'",
1909                                    wpa_s->pending_interface_name);
1910                         return -1;
1911                 }
1912                 return 0;
1913         }
1914
1915         wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
1916         force_ifname[0] = '\0';
1917
1918         wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1919                    ifname);
1920         wpa_s->p2p_group_idx++;
1921
1922         wpa_s->pending_interface_type = type;
1923         if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1924                            wpa_s->pending_interface_addr, NULL) < 0) {
1925                 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1926                            "interface");
1927                 return -1;
1928         }
1929
1930         if (force_ifname[0]) {
1931                 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1932                            force_ifname);
1933                 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1934                            sizeof(wpa_s->pending_interface_name));
1935         } else
1936                 os_strlcpy(wpa_s->pending_interface_name, ifname,
1937                            sizeof(wpa_s->pending_interface_name));
1938         wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1939                    MACSTR, wpa_s->pending_interface_name,
1940                    MAC2STR(wpa_s->pending_interface_addr));
1941
1942         return 0;
1943 }
1944
1945
1946 static void wpas_p2p_remove_pending_group_interface(
1947         struct wpa_supplicant *wpa_s)
1948 {
1949         if (!wpa_s->pending_interface_name[0] ||
1950             is_zero_ether_addr(wpa_s->pending_interface_addr))
1951                 return; /* No pending virtual interface */
1952
1953         wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1954                    wpa_s->pending_interface_name);
1955         wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1956                           wpa_s->pending_interface_name);
1957         os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1958         wpa_s->pending_interface_name[0] = '\0';
1959         wpa_s->global->pending_group_iface_for_p2ps = 0;
1960 }
1961
1962
1963 static struct wpa_supplicant *
1964 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1965 {
1966         struct wpa_interface iface;
1967         struct wpa_supplicant *group_wpa_s;
1968
1969         if (!wpa_s->pending_interface_name[0]) {
1970                 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1971                 if (!wpas_p2p_create_iface(wpa_s))
1972                         return NULL;
1973                 /*
1974                  * Something has forced us to remove the pending interface; try
1975                  * to create a new one and hope for the best that we will get
1976                  * the same local address.
1977                  */
1978                 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1979                                                  WPA_IF_P2P_CLIENT) < 0)
1980                         return NULL;
1981         }
1982
1983         os_memset(&iface, 0, sizeof(iface));
1984         iface.ifname = wpa_s->pending_interface_name;
1985         iface.driver = wpa_s->driver->name;
1986         if (wpa_s->conf->ctrl_interface == NULL &&
1987             wpa_s->parent != wpa_s &&
1988             wpa_s->p2p_mgmt &&
1989             (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
1990                 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
1991         else
1992                 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1993         iface.driver_param = wpa_s->conf->driver_param;
1994         group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
1995         if (group_wpa_s == NULL) {
1996                 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1997                            "wpa_supplicant interface");
1998                 return NULL;
1999         }
2000         wpa_s->pending_interface_name[0] = '\0';
2001         group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2002                 P2P_GROUP_INTERFACE_CLIENT;
2003         wpa_s->global->p2p_group_formation = group_wpa_s;
2004         wpa_s->global->pending_group_iface_for_p2ps = 0;
2005
2006         wpas_p2p_clone_config(group_wpa_s, wpa_s);
2007
2008         return group_wpa_s;
2009 }
2010
2011
2012 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2013                                              void *timeout_ctx)
2014 {
2015         struct wpa_supplicant *wpa_s = eloop_ctx;
2016         wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2017         wpas_p2p_group_formation_failed(wpa_s);
2018 }
2019
2020
2021 void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s)
2022 {
2023         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2024                              wpa_s->parent, NULL);
2025         if (wpa_s->global->p2p)
2026                 p2p_group_formation_failed(wpa_s->global->p2p);
2027         wpas_group_formation_completed(wpa_s, 0);
2028 }
2029
2030
2031 static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2032 {
2033         wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2034         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2035                              wpa_s->parent, NULL);
2036         eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2037                                wpa_s->parent, NULL);
2038         wpa_s->global->p2p_fail_on_wps_complete = 0;
2039 }
2040
2041
2042 void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2043 {
2044         if (wpa_s->global->p2p_group_formation != wpa_s)
2045                 return;
2046         /* Speed up group formation timeout since this cannot succeed */
2047         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2048                              wpa_s->parent, NULL);
2049         eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2050                                wpa_s->parent, NULL);
2051 }
2052
2053
2054 static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2055 {
2056         struct wpa_supplicant *wpa_s = ctx;
2057
2058         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2059                 wpa_drv_cancel_remain_on_channel(wpa_s);
2060                 wpa_s->off_channel_freq = 0;
2061                 wpa_s->roc_waiting_drv_freq = 0;
2062         }
2063
2064         if (res->status) {
2065                 wpa_msg_global(wpa_s, MSG_INFO,
2066                                P2P_EVENT_GO_NEG_FAILURE "status=%d",
2067                                res->status);
2068                 wpas_notify_p2p_go_neg_completed(wpa_s, res);
2069                 wpas_p2p_remove_pending_group_interface(wpa_s);
2070                 return;
2071         }
2072
2073         if (wpa_s->p2p_go_ht40)
2074                 res->ht40 = 1;
2075         if (wpa_s->p2p_go_vht)
2076                 res->vht = 1;
2077
2078         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2079                        "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2080                        " wps_method=%s",
2081                        res->role_go ? "GO" : "client", res->freq, res->ht40,
2082                        MAC2STR(res->peer_device_addr),
2083                        MAC2STR(res->peer_interface_addr),
2084                        p2p_wps_method_text(res->wps_method));
2085         wpas_notify_p2p_go_neg_completed(wpa_s, res);
2086
2087         if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2088                 struct wpa_ssid *ssid;
2089                 ssid = wpa_config_get_network(wpa_s->conf,
2090                                               wpa_s->p2p_persistent_id);
2091                 if (ssid && ssid->disabled == 2 &&
2092                     ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2093                         size_t len = os_strlen(ssid->passphrase);
2094                         wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2095                                    "on requested persistent group");
2096                         os_memcpy(res->passphrase, ssid->passphrase, len);
2097                         res->passphrase[len] = '\0';
2098                 }
2099         }
2100
2101         if (wpa_s->create_p2p_iface) {
2102                 struct wpa_supplicant *group_wpa_s =
2103                         wpas_p2p_init_group_interface(wpa_s, res->role_go);
2104                 if (group_wpa_s == NULL) {
2105                         wpas_p2p_remove_pending_group_interface(wpa_s);
2106                         eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2107                                              wpa_s, NULL);
2108                         wpas_p2p_group_formation_failed(wpa_s);
2109                         return;
2110                 }
2111                 if (group_wpa_s != wpa_s) {
2112                         os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2113                                   sizeof(group_wpa_s->p2p_pin));
2114                         group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2115                 }
2116                 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2117                 wpa_s->pending_interface_name[0] = '\0';
2118                 group_wpa_s->p2p_in_provisioning = 1;
2119
2120                 if (res->role_go)
2121                         wpas_start_wps_go(group_wpa_s, res, 1);
2122                 else
2123                         wpas_start_wps_enrollee(group_wpa_s, res);
2124         } else {
2125                 wpa_s->p2p_in_provisioning = 1;
2126                 wpa_s->global->p2p_group_formation = wpa_s;
2127
2128                 if (res->role_go)
2129                         wpas_start_wps_go(wpa_s, res, 1);
2130                 else
2131                         wpas_start_wps_enrollee(ctx, res);
2132         }
2133
2134         wpa_s->p2p_long_listen = 0;
2135         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2136
2137         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2138         eloop_register_timeout(15 + res->peer_config_timeout / 100,
2139                                (res->peer_config_timeout % 100) * 10000,
2140                                wpas_p2p_group_formation_timeout, wpa_s, NULL);
2141 }
2142
2143
2144 static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
2145 {
2146         struct wpa_supplicant *wpa_s = ctx;
2147         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2148                        " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
2149
2150         wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
2151 }
2152
2153
2154 static void wpas_dev_found(void *ctx, const u8 *addr,
2155                            const struct p2p_peer_info *info,
2156                            int new_device)
2157 {
2158 #ifndef CONFIG_NO_STDOUT_DEBUG
2159         struct wpa_supplicant *wpa_s = ctx;
2160         char devtype[WPS_DEV_TYPE_BUFSIZE];
2161         char *wfd_dev_info_hex = NULL;
2162
2163 #ifdef CONFIG_WIFI_DISPLAY
2164         wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2165                                                     WFD_SUBELEM_DEVICE_INFO);
2166 #endif /* CONFIG_WIFI_DISPLAY */
2167
2168         if (info->p2ps_instance) {
2169                 char str[256];
2170                 const u8 *buf = wpabuf_head(info->p2ps_instance);
2171                 size_t len = wpabuf_len(info->p2ps_instance);
2172
2173                 while (len) {
2174                         u32 id;
2175                         u16 methods;
2176                         u8 str_len;
2177
2178                         if (len < 4 + 2 + 1)
2179                                 break;
2180                         id = WPA_GET_LE32(buf);
2181                         buf += sizeof(u32);
2182                         methods = WPA_GET_BE16(buf);
2183                         buf += sizeof(u16);
2184                         str_len = *buf++;
2185                         if (str_len > len - 4 - 2 - 1)
2186                                 break;
2187                         os_memcpy(str, buf, str_len);
2188                         str[str_len] = '\0';
2189                         buf += str_len;
2190                         len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2191
2192                         wpa_msg_global(wpa_s, MSG_INFO,
2193                                        P2P_EVENT_DEVICE_FOUND MACSTR
2194                                        " p2p_dev_addr=" MACSTR
2195                                        " pri_dev_type=%s name='%s'"
2196                                        " config_methods=0x%x"
2197                                        " dev_capab=0x%x"
2198                                        " group_capab=0x%x"
2199                                        " adv_id=%x asp_svc=%s%s",
2200                                        MAC2STR(addr),
2201                                        MAC2STR(info->p2p_device_addr),
2202                                        wps_dev_type_bin2str(
2203                                                info->pri_dev_type,
2204                                                devtype, sizeof(devtype)),
2205                                        info->device_name, methods,
2206                                        info->dev_capab, info->group_capab,
2207                                        id, str,
2208                                        info->vendor_elems ?
2209                                        " vendor_elems=1" : "");
2210                 }
2211                 goto done;
2212         }
2213
2214         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2215                        " p2p_dev_addr=" MACSTR
2216                        " pri_dev_type=%s name='%s' config_methods=0x%x "
2217                        "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2218                        MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2219                        wps_dev_type_bin2str(info->pri_dev_type, devtype,
2220                                             sizeof(devtype)),
2221                        info->device_name, info->config_methods,
2222                        info->dev_capab, info->group_capab,
2223                        wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2224                        wfd_dev_info_hex ? wfd_dev_info_hex : "",
2225                        info->vendor_elems ? " vendor_elems=1" : "",
2226                        new_device);
2227
2228 done:
2229         os_free(wfd_dev_info_hex);
2230 #endif /* CONFIG_NO_STDOUT_DEBUG */
2231
2232         wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2233 }
2234
2235
2236 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2237 {
2238         struct wpa_supplicant *wpa_s = ctx;
2239
2240         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2241                        "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2242
2243         wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2244 }
2245
2246
2247 static void wpas_find_stopped(void *ctx)
2248 {
2249         struct wpa_supplicant *wpa_s = ctx;
2250         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2251 }
2252
2253
2254 struct wpas_p2p_listen_work {
2255         unsigned int freq;
2256         unsigned int duration;
2257         struct wpabuf *probe_resp_ie;
2258 };
2259
2260
2261 static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2262 {
2263         if (lwork == NULL)
2264                 return;
2265         wpabuf_free(lwork->probe_resp_ie);
2266         os_free(lwork);
2267 }
2268
2269
2270 static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2271 {
2272         struct wpas_p2p_listen_work *lwork;
2273
2274         if (!wpa_s->p2p_listen_work)
2275                 return;
2276
2277         lwork = wpa_s->p2p_listen_work->ctx;
2278         wpas_p2p_listen_work_free(lwork);
2279         radio_work_done(wpa_s->p2p_listen_work);
2280         wpa_s->p2p_listen_work = NULL;
2281 }
2282
2283
2284 static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2285 {
2286         struct wpa_supplicant *wpa_s = work->wpa_s;
2287         struct wpas_p2p_listen_work *lwork = work->ctx;
2288         unsigned int duration;
2289
2290         if (deinit) {
2291                 if (work->started) {
2292                         wpa_s->p2p_listen_work = NULL;
2293                         wpas_stop_listen(wpa_s);
2294                 }
2295                 wpas_p2p_listen_work_free(lwork);
2296                 return;
2297         }
2298
2299         wpa_s->p2p_listen_work = work;
2300
2301         wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2302
2303         if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2304                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2305                            "report received Probe Request frames");
2306                 wpas_p2p_listen_work_done(wpa_s);
2307                 return;
2308         }
2309
2310         wpa_s->pending_listen_freq = lwork->freq;
2311         wpa_s->pending_listen_duration = lwork->duration;
2312
2313         duration = lwork->duration;
2314 #ifdef CONFIG_TESTING_OPTIONS
2315         if (wpa_s->extra_roc_dur) {
2316                 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2317                            duration, duration + wpa_s->extra_roc_dur);
2318                 duration += wpa_s->extra_roc_dur;
2319         }
2320 #endif /* CONFIG_TESTING_OPTIONS */
2321
2322         if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2323                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2324                            "to remain on channel (%u MHz) for Listen "
2325                            "state", lwork->freq);
2326                 wpas_p2p_listen_work_done(wpa_s);
2327                 wpa_s->pending_listen_freq = 0;
2328                 return;
2329         }
2330         wpa_s->off_channel_freq = 0;
2331         wpa_s->roc_waiting_drv_freq = lwork->freq;
2332 }
2333
2334
2335 static int wpas_start_listen(void *ctx, unsigned int freq,
2336                              unsigned int duration,
2337                              const struct wpabuf *probe_resp_ie)
2338 {
2339         struct wpa_supplicant *wpa_s = ctx;
2340         struct wpas_p2p_listen_work *lwork;
2341
2342         if (wpa_s->p2p_listen_work) {
2343                 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2344                 return -1;
2345         }
2346
2347         lwork = os_zalloc(sizeof(*lwork));
2348         if (lwork == NULL)
2349                 return -1;
2350         lwork->freq = freq;
2351         lwork->duration = duration;
2352         if (probe_resp_ie) {
2353                 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2354                 if (lwork->probe_resp_ie == NULL) {
2355                         wpas_p2p_listen_work_free(lwork);
2356                         return -1;
2357                 }
2358         }
2359
2360         if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2361                            lwork) < 0) {
2362                 wpas_p2p_listen_work_free(lwork);
2363                 return -1;
2364         }
2365
2366         return 0;
2367 }
2368
2369
2370 static void wpas_stop_listen(void *ctx)
2371 {
2372         struct wpa_supplicant *wpa_s = ctx;
2373         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2374                 wpa_drv_cancel_remain_on_channel(wpa_s);
2375                 wpa_s->off_channel_freq = 0;
2376                 wpa_s->roc_waiting_drv_freq = 0;
2377         }
2378         wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2379         wpa_drv_probe_req_report(wpa_s, 0);
2380         wpas_p2p_listen_work_done(wpa_s);
2381 }
2382
2383
2384 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
2385 {
2386         struct wpa_supplicant *wpa_s = ctx;
2387         return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
2388 }
2389
2390
2391 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2392                                          const u8 *peer, const char *params,
2393                                          unsigned int generated_pin)
2394 {
2395         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2396                        " %08d%s", MAC2STR(peer), generated_pin, params);
2397 }
2398
2399
2400 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2401                                         const u8 *peer, const char *params)
2402 {
2403         wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2404                        "%s", MAC2STR(peer), params);
2405 }
2406
2407
2408 static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2409                                const u8 *dev_addr, const u8 *pri_dev_type,
2410                                const char *dev_name, u16 supp_config_methods,
2411                                u8 dev_capab, u8 group_capab, const u8 *group_id,
2412                                size_t group_id_len)
2413 {
2414         struct wpa_supplicant *wpa_s = ctx;
2415         char devtype[WPS_DEV_TYPE_BUFSIZE];
2416         char params[300];
2417         u8 empty_dev_type[8];
2418         unsigned int generated_pin = 0;
2419         struct wpa_supplicant *group = NULL;
2420         int res;
2421
2422         if (group_id) {
2423                 for (group = wpa_s->global->ifaces; group; group = group->next)
2424                 {
2425                         struct wpa_ssid *s = group->current_ssid;
2426                         if (s != NULL &&
2427                             s->mode == WPAS_MODE_P2P_GO &&
2428                             group_id_len - ETH_ALEN == s->ssid_len &&
2429                             os_memcmp(group_id + ETH_ALEN, s->ssid,
2430                                       s->ssid_len) == 0)
2431                                 break;
2432                 }
2433         }
2434
2435         if (pri_dev_type == NULL) {
2436                 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2437                 pri_dev_type = empty_dev_type;
2438         }
2439         res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2440                           " pri_dev_type=%s name='%s' config_methods=0x%x "
2441                           "dev_capab=0x%x group_capab=0x%x%s%s",
2442                           MAC2STR(dev_addr),
2443                           wps_dev_type_bin2str(pri_dev_type, devtype,
2444                                                sizeof(devtype)),
2445                           dev_name, supp_config_methods, dev_capab, group_capab,
2446                           group ? " group=" : "",
2447                           group ? group->ifname : "");
2448         if (os_snprintf_error(sizeof(params), res))
2449                 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2450         params[sizeof(params) - 1] = '\0';
2451
2452         if (config_methods & WPS_CONFIG_DISPLAY) {
2453                 generated_pin = wps_generate_pin();
2454                 wpas_prov_disc_local_display(wpa_s, peer, params,
2455                                              generated_pin);
2456         } else if (config_methods & WPS_CONFIG_KEYPAD)
2457                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2458         else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2459                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2460                                MACSTR "%s", MAC2STR(peer), params);
2461
2462         wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2463                                             P2P_PROV_DISC_SUCCESS,
2464                                             config_methods, generated_pin);
2465 }
2466
2467
2468 static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2469 {
2470         struct wpa_supplicant *wpa_s = ctx;
2471         unsigned int generated_pin = 0;
2472         char params[20];
2473
2474         if (wpa_s->pending_pd_before_join &&
2475             (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2476              os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2477                 wpa_s->pending_pd_before_join = 0;
2478                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2479                            "join-existing-group operation");
2480                 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2481                 return;
2482         }
2483
2484         if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2485             wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2486                 int res;
2487
2488                 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2489                                   wpa_s->pending_pd_use == AUTO_PD_JOIN);
2490                 if (os_snprintf_error(sizeof(params), res))
2491                         params[sizeof(params) - 1] = '\0';
2492         } else
2493                 params[0] = '\0';
2494
2495         if (config_methods & WPS_CONFIG_DISPLAY)
2496                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2497         else if (config_methods & WPS_CONFIG_KEYPAD) {
2498                 generated_pin = wps_generate_pin();
2499                 wpas_prov_disc_local_display(wpa_s, peer, params,
2500                                              generated_pin);
2501         } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2502                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2503                                MACSTR "%s", MAC2STR(peer), params);
2504
2505         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2506                                             P2P_PROV_DISC_SUCCESS,
2507                                             config_methods, generated_pin);
2508 }
2509
2510
2511 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2512                                 enum p2p_prov_disc_status status,
2513                                 u32 adv_id, const u8 *adv_mac,
2514                                 const char *deferred_session_resp)
2515 {
2516         struct wpa_supplicant *wpa_s = ctx;
2517
2518         if (wpa_s->p2p_fallback_to_go_neg) {
2519                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2520                         "failed - fall back to GO Negotiation");
2521                 wpa_msg_global(wpa_s->parent, MSG_INFO,
2522                                P2P_EVENT_FALLBACK_TO_GO_NEG
2523                                "reason=PD-failed");
2524                 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2525                 return;
2526         }
2527
2528         if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2529                 wpa_s->pending_pd_before_join = 0;
2530                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2531                            "join-existing-group operation (no ACK for PD "
2532                            "Req attempts)");
2533                 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2534                 return;
2535         }
2536
2537         if (adv_id && adv_mac && deferred_session_resp) {
2538                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2539                                " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2540                                " deferred_session_resp='%s'",
2541                                MAC2STR(peer), status, adv_id,
2542                                deferred_session_resp);
2543         } else if (adv_id && adv_mac) {
2544                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2545                                " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2546                                MAC2STR(peer), status, adv_id);
2547         } else {
2548                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2549                                " p2p_dev_addr=" MACSTR " status=%d",
2550                                MAC2STR(peer), status);
2551         }
2552
2553         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2554                                             status, 0, 0);
2555 }
2556
2557
2558 static int freq_included(const struct p2p_channels *channels, unsigned int freq)
2559 {
2560         if (channels == NULL)
2561                 return 1; /* Assume no restrictions */
2562         return p2p_channels_includes_freq(channels, freq);
2563
2564 }
2565
2566
2567 /**
2568  * Pick the best frequency to use from all the currently used frequencies.
2569  */
2570 static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2571                                         struct wpa_used_freq_data *freqs,
2572                                         unsigned int num)
2573 {
2574         unsigned int i, c;
2575
2576         /* find a candidate freq that is supported by P2P */
2577         for (c = 0; c < num; c++)
2578                 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2579                         break;
2580
2581         if (c == num)
2582                 return 0;
2583
2584         /* once we have a candidate, try to find a 'better' one */
2585         for (i = c + 1; i < num; i++) {
2586                 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2587                         continue;
2588
2589                 /*
2590                  * 1. Infrastructure station interfaces have higher preference.
2591                  * 2. P2P Clients have higher preference.
2592                  * 3. All others.
2593                  */
2594                 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2595                         c = i;
2596                         break;
2597                 }
2598
2599                 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2600                         c = i;
2601         }
2602         return freqs[c].freq;
2603 }
2604
2605
2606 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2607                                   const u8 *go_dev_addr, const u8 *ssid,
2608                                   size_t ssid_len, int *go, u8 *group_bssid,
2609                                   int *force_freq, int persistent_group,
2610                                   const struct p2p_channels *channels,
2611                                   int dev_pw_id)
2612 {
2613         struct wpa_supplicant *wpa_s = ctx;
2614         struct wpa_ssid *s;
2615         struct wpa_used_freq_data *freqs;
2616         struct wpa_supplicant *grp;
2617         int best_freq;
2618
2619         if (!persistent_group) {
2620                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2621                            " to join an active group (SSID: %s)",
2622                            MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2623                 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2624                     (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2625                      == 0 ||
2626                      os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2627                         wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2628                                    "authorized invitation");
2629                         goto accept_inv;
2630                 }
2631
2632 #ifdef CONFIG_WPS_NFC
2633                 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2634                     dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2635                         wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2636                         wpa_s->p2p_wps_method = WPS_NFC;
2637                         wpa_s->pending_join_wps_method = WPS_NFC;
2638                         os_memcpy(wpa_s->pending_join_dev_addr,
2639                                   go_dev_addr, ETH_ALEN);
2640                         os_memcpy(wpa_s->pending_join_iface_addr,
2641                                   bssid, ETH_ALEN);
2642                         goto accept_inv;
2643                 }
2644 #endif /* CONFIG_WPS_NFC */
2645
2646                 /*
2647                  * Do not accept the invitation automatically; notify user and
2648                  * request approval.
2649                  */
2650                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2651         }
2652
2653         grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2654         if (grp) {
2655                 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2656                            "running persistent group");
2657                 if (*go)
2658                         os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2659                 goto accept_inv;
2660         }
2661
2662         if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2663             os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2664                 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2665                            "invitation to re-invoke a persistent group");
2666                 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2667         } else if (!wpa_s->conf->persistent_reconnect)
2668                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2669
2670         for (s = wpa_s->conf->ssid; s; s = s->next) {
2671                 if (s->disabled == 2 &&
2672                     os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2673                     s->ssid_len == ssid_len &&
2674                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
2675                         break;
2676         }
2677
2678         if (!s) {
2679                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2680                            " requested reinvocation of an unknown group",
2681                            MAC2STR(sa));
2682                 return P2P_SC_FAIL_UNKNOWN_GROUP;
2683         }
2684
2685         if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2686                 *go = 1;
2687                 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2688                         wpa_printf(MSG_DEBUG, "P2P: The only available "
2689                                    "interface is already in use - reject "
2690                                    "invitation");
2691                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2692                 }
2693                 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2694         } else if (s->mode == WPAS_MODE_P2P_GO) {
2695                 *go = 1;
2696                 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2697                 {
2698                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2699                                    "interface address for the group");
2700                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2701                 }
2702                 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2703                           ETH_ALEN);
2704         }
2705
2706 accept_inv:
2707         wpas_p2p_set_own_freq_preference(wpa_s, 0);
2708
2709         best_freq = 0;
2710         freqs = os_calloc(wpa_s->num_multichan_concurrent,
2711                           sizeof(struct wpa_used_freq_data));
2712         if (freqs) {
2713                 int num_channels = wpa_s->num_multichan_concurrent;
2714                 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2715                 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2716                 os_free(freqs);
2717         }
2718
2719         /* Get one of the frequencies currently in use */
2720         if (best_freq > 0) {
2721                 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2722                 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2723
2724                 if (wpa_s->num_multichan_concurrent < 2 ||
2725                     wpas_p2p_num_unused_channels(wpa_s) < 1) {
2726                         wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2727                         *force_freq = best_freq;
2728                 }
2729         }
2730
2731         if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2732             wpas_p2p_num_unused_channels(wpa_s) > 0) {
2733                 if (*go == 0) {
2734                         /* We are the client */
2735                         wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2736                                    "running a GO but we are capable of MCC, "
2737                                    "figure out the best channel to use");
2738                         *force_freq = 0;
2739                 } else if (!freq_included(channels, *force_freq)) {
2740                         /* We are the GO, and *force_freq is not in the
2741                          * intersection */
2742                         wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2743                                    "in intersection but we are capable of MCC, "
2744                                    "figure out the best channel to use",
2745                                    *force_freq);
2746                         *force_freq = 0;
2747                 }
2748         }
2749
2750         return P2P_SC_SUCCESS;
2751 }
2752
2753
2754 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2755                                      const u8 *ssid, size_t ssid_len,
2756                                      const u8 *go_dev_addr, u8 status,
2757                                      int op_freq)
2758 {
2759         struct wpa_supplicant *wpa_s = ctx;
2760         struct wpa_ssid *s;
2761
2762         for (s = wpa_s->conf->ssid; s; s = s->next) {
2763                 if (s->disabled == 2 &&
2764                     s->ssid_len == ssid_len &&
2765                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
2766                         break;
2767         }
2768
2769         if (status == P2P_SC_SUCCESS) {
2770                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2771                            " was accepted; op_freq=%d MHz, SSID=%s",
2772                            MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
2773                 if (s) {
2774                         int go = s->mode == WPAS_MODE_P2P_GO;
2775                         wpas_p2p_group_add_persistent(
2776                                 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
2777                                 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
2778                 } else if (bssid) {
2779                         wpa_s->user_initiated_pd = 0;
2780                         wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2781                                       wpa_s->p2p_wps_method, 0, op_freq,
2782                                       ssid, ssid_len);
2783                 }
2784                 return;
2785         }
2786
2787         if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2788                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2789                            " was rejected (status %u)", MAC2STR(sa), status);
2790                 return;
2791         }
2792
2793         if (!s) {
2794                 if (bssid) {
2795                         wpa_msg_global(wpa_s, MSG_INFO,
2796                                        P2P_EVENT_INVITATION_RECEIVED
2797                                        "sa=" MACSTR " go_dev_addr=" MACSTR
2798                                        " bssid=" MACSTR " unknown-network",
2799                                        MAC2STR(sa), MAC2STR(go_dev_addr),
2800                                        MAC2STR(bssid));
2801                 } else {
2802                         wpa_msg_global(wpa_s, MSG_INFO,
2803                                        P2P_EVENT_INVITATION_RECEIVED
2804                                        "sa=" MACSTR " go_dev_addr=" MACSTR
2805                                        " unknown-network",
2806                                        MAC2STR(sa), MAC2STR(go_dev_addr));
2807                 }
2808                 return;
2809         }
2810
2811         if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
2812                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2813                                "sa=" MACSTR " persistent=%d freq=%d",
2814                                MAC2STR(sa), s->id, op_freq);
2815         } else {
2816                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2817                                "sa=" MACSTR " persistent=%d",
2818                                MAC2STR(sa), s->id);
2819         }
2820 }
2821
2822
2823 static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
2824                                         struct wpa_ssid *ssid,
2825                                         const u8 *peer, int inv)
2826 {
2827         size_t i;
2828
2829         if (ssid == NULL)
2830                 return;
2831
2832         for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
2833                 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
2834                               ETH_ALEN) == 0)
2835                         break;
2836         }
2837         if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
2838                 if (ssid->mode != WPAS_MODE_P2P_GO &&
2839                     os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
2840                         wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
2841                                    "due to invitation result", ssid->id);
2842                         wpas_notify_network_removed(wpa_s, ssid);
2843                         wpa_config_remove_network(wpa_s->conf, ssid->id);
2844                         return;
2845                 }
2846                 return; /* Peer not found in client list */
2847         }
2848
2849         wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
2850                    "group %d client list%s",
2851                    MAC2STR(peer), ssid->id,
2852                    inv ? " due to invitation result" : "");
2853         os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
2854                    ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
2855                    (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
2856         ssid->num_p2p_clients--;
2857         if (wpa_s->parent->conf->update_config &&
2858             wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
2859                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
2860 }
2861
2862
2863 static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
2864                                           const u8 *peer)
2865 {
2866         struct wpa_ssid *ssid;
2867
2868         wpa_s = wpa_s->global->p2p_invite_group;
2869         if (wpa_s == NULL)
2870                 return; /* No known invitation group */
2871         ssid = wpa_s->current_ssid;
2872         if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
2873             !ssid->p2p_persistent_group)
2874                 return; /* Not operating as a GO in persistent group */
2875         ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
2876                                        ssid->ssid, ssid->ssid_len);
2877         wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
2878 }
2879
2880
2881 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
2882                                    const struct p2p_channels *channels,
2883                                    const u8 *peer, int neg_freq,
2884                                    int peer_oper_freq)
2885 {
2886         struct wpa_supplicant *wpa_s = ctx;
2887         struct wpa_ssid *ssid;
2888         int freq;
2889
2890         if (bssid) {
2891                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2892                                "status=%d " MACSTR,
2893                                status, MAC2STR(bssid));
2894         } else {
2895                 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2896                                "status=%d ", status);
2897         }
2898         wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2899
2900         wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
2901                    status, MAC2STR(peer));
2902         if (wpa_s->pending_invite_ssid_id == -1) {
2903                 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
2904                         wpas_remove_persistent_client(wpa_s, peer);
2905                 return; /* Invitation to active group */
2906         }
2907
2908         if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2909                 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
2910                            "invitation exchange to indicate readiness for "
2911                            "re-invocation");
2912         }
2913
2914         if (status != P2P_SC_SUCCESS) {
2915                 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
2916                         ssid = wpa_config_get_network(
2917                                 wpa_s->conf, wpa_s->pending_invite_ssid_id);
2918                         wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
2919                 }
2920                 wpas_p2p_remove_pending_group_interface(wpa_s);
2921                 return;
2922         }
2923
2924         ssid = wpa_config_get_network(wpa_s->conf,
2925                                       wpa_s->pending_invite_ssid_id);
2926         if (ssid == NULL) {
2927                 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2928                            "data matching with invitation");
2929                 return;
2930         }
2931
2932         /*
2933          * The peer could have missed our ctrl::ack frame for Invitation
2934          * Response and continue retransmitting the frame. To reduce the
2935          * likelihood of the peer not getting successful TX status for the
2936          * Invitation Response frame, wait a short time here before starting
2937          * the persistent group so that we will remain on the current channel to
2938          * acknowledge any possible retransmission from the peer.
2939          */
2940         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
2941                 "starting persistent group");
2942         os_sleep(0, 50000);
2943
2944         if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
2945             freq_included(channels, neg_freq))
2946                 freq = neg_freq;
2947         else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
2948                  freq_included(channels, peer_oper_freq))
2949                 freq = peer_oper_freq;
2950         else
2951                 freq = 0;
2952
2953         wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
2954                    freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
2955         wpas_p2p_group_add_persistent(wpa_s, ssid,
2956                                       ssid->mode == WPAS_MODE_P2P_GO,
2957                                       wpa_s->p2p_persistent_go_freq,
2958                                       freq,
2959                                       wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
2960                                       channels,
2961                                       ssid->mode == WPAS_MODE_P2P_GO ?
2962                                       P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
2963                                       0);
2964 }
2965
2966
2967 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2968                                     unsigned int freq)
2969 {
2970         if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
2971                 return 1;
2972         return freq_range_list_includes(&global->p2p_disallow_freq, freq);
2973 }
2974
2975
2976 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
2977 {
2978         reg->channel[reg->channels] = chan;
2979         reg->channels++;
2980 }
2981
2982
2983 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2984                                      struct p2p_channels *chan,
2985                                      struct p2p_channels *cli_chan)
2986 {
2987         int i, cla = 0;
2988
2989         wpa_s->global->p2p_24ghz_social_channels = 1;
2990
2991         os_memset(cli_chan, 0, sizeof(*cli_chan));
2992
2993         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2994                    "band");
2995
2996         /* Operating class 81 - 2.4 GHz band channels 1..13 */
2997         chan->reg_class[cla].reg_class = 81;
2998         chan->reg_class[cla].channels = 0;
2999         for (i = 0; i < 11; i++) {
3000                 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3001                         wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3002         }
3003         if (chan->reg_class[cla].channels)
3004                 cla++;
3005
3006         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3007                    "band");
3008
3009         /* Operating class 115 - 5 GHz, channels 36-48 */
3010         chan->reg_class[cla].reg_class = 115;
3011         chan->reg_class[cla].channels = 0;
3012         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3013                 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3014         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3015                 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3016         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3017                 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3018         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3019                 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3020         if (chan->reg_class[cla].channels)
3021                 cla++;
3022
3023         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3024                    "band");
3025
3026         /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3027         chan->reg_class[cla].reg_class = 124;
3028         chan->reg_class[cla].channels = 0;
3029         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3030                 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3031         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3032                 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3033         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3034                 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3035         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3036                 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3037         if (chan->reg_class[cla].channels)
3038                 cla++;
3039
3040         chan->reg_classes = cla;
3041         return 0;
3042 }
3043
3044
3045 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3046                                           u16 num_modes,
3047                                           enum hostapd_hw_mode mode)
3048 {
3049         u16 i;
3050
3051         for (i = 0; i < num_modes; i++) {
3052                 if (modes[i].mode == mode)
3053                         return &modes[i];
3054         }
3055
3056         return NULL;
3057 }
3058
3059
3060 enum chan_allowed {
3061         NOT_ALLOWED, NO_IR, ALLOWED
3062 };
3063
3064 static int has_channel(struct wpa_global *global,
3065                        struct hostapd_hw_modes *mode, u8 chan, int *flags)
3066 {
3067         int i;
3068         unsigned int freq;
3069
3070         freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3071                 chan * 5;
3072         if (wpas_p2p_disallowed_freq(global, freq))
3073                 return NOT_ALLOWED;
3074
3075         for (i = 0; i < mode->num_channels; i++) {
3076                 if (mode->channels[i].chan == chan) {
3077                         if (flags)
3078                                 *flags = mode->channels[i].flag;
3079                         if (mode->channels[i].flag &
3080                             (HOSTAPD_CHAN_DISABLED |
3081                              HOSTAPD_CHAN_RADAR))
3082                                 return NOT_ALLOWED;
3083                         if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3084                                 return NO_IR;
3085                         return ALLOWED;
3086                 }
3087         }
3088
3089         return NOT_ALLOWED;
3090 }
3091
3092
3093 struct p2p_oper_class_map {
3094         enum hostapd_hw_mode mode;
3095         u8 op_class;
3096         u8 min_chan;
3097         u8 max_chan;
3098         u8 inc;
3099         enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
3100 };
3101
3102 static const struct p2p_oper_class_map op_class[] = {
3103         { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
3104 #if 0 /* Do not enable HT40 on 2 GHz for now */
3105         { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3106         { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3107 #endif
3108         { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3109         { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3110         { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3111         { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3112         { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3113         { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
3114
3115         /*
3116          * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3117          * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3118          * 80 MHz, but currently use the following definition for simplicity
3119          * (these center frequencies are not actual channels, which makes
3120          * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3121          * removing invalid channels.
3122          */
3123         { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
3124         { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
3125         { -1, 0, 0, 0, 0, BW20 }
3126 };
3127
3128
3129 static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3130                                      struct hostapd_hw_modes *mode,
3131                                      u8 channel)
3132 {
3133         u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3134         unsigned int i;
3135
3136         if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3137                 return 0;
3138
3139         for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3140                 /*
3141                  * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3142                  * so the center channel is 6 channels away from the start/end.
3143                  */
3144                 if (channel >= center_channels[i] - 6 &&
3145                     channel <= center_channels[i] + 6)
3146                         return center_channels[i];
3147
3148         return 0;
3149 }
3150
3151
3152 static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3153                                                struct hostapd_hw_modes *mode,
3154                                                u8 channel, u8 bw)
3155 {
3156         u8 center_chan;
3157         int i, flags;
3158         enum chan_allowed res, ret = ALLOWED;
3159
3160         center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3161         if (!center_chan)
3162                 return NOT_ALLOWED;
3163         if (center_chan >= 58 && center_chan <= 138)
3164                 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3165
3166         /* check all the channels are available */
3167         for (i = 0; i < 4; i++) {
3168                 int adj_chan = center_chan - 6 + i * 4;
3169
3170                 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3171                 if (res == NOT_ALLOWED)
3172                         return NOT_ALLOWED;
3173                 if (res == NO_IR)
3174                         ret = NO_IR;
3175
3176                 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3177                         return NOT_ALLOWED;
3178                 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3179                         return NOT_ALLOWED;
3180                 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3181                         return NOT_ALLOWED;
3182                 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3183                         return NOT_ALLOWED;
3184         }
3185
3186         return ret;
3187 }
3188
3189
3190 static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3191                                                  struct hostapd_hw_modes *mode,
3192                                                  u8 channel, u8 bw)
3193 {
3194         int flag = 0;
3195         enum chan_allowed res, res2;
3196
3197         res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3198         if (bw == BW40MINUS) {
3199                 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3200                         return NOT_ALLOWED;
3201                 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3202         } else if (bw == BW40PLUS) {
3203                 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3204                         return NOT_ALLOWED;
3205                 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3206         } else if (bw == BW80) {
3207                 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3208         }
3209
3210         if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3211                 return NOT_ALLOWED;
3212         if (res == NO_IR || res2 == NO_IR)
3213                 return NO_IR;
3214         return res;
3215 }
3216
3217
3218 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3219                                    struct p2p_channels *chan,
3220                                    struct p2p_channels *cli_chan)
3221 {
3222         struct hostapd_hw_modes *mode;
3223         int cla, op, cli_cla;
3224
3225         if (wpa_s->hw.modes == NULL) {
3226                 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3227                            "of all supported channels; assume dualband "
3228                            "support");
3229                 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3230         }
3231
3232         cla = cli_cla = 0;
3233
3234         for (op = 0; op_class[op].op_class; op++) {
3235                 const struct p2p_oper_class_map *o = &op_class[op];
3236                 u8 ch;
3237                 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3238
3239                 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3240                 if (mode == NULL)
3241                         continue;
3242                 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3243                         wpa_s->global->p2p_24ghz_social_channels = 1;
3244                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3245                         enum chan_allowed res;
3246                         res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3247                         if (res == ALLOWED) {
3248                                 if (reg == NULL) {
3249                                         wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3250                                                    o->op_class);
3251                                         reg = &chan->reg_class[cla];
3252                                         cla++;
3253                                         reg->reg_class = o->op_class;
3254                                 }
3255                                 reg->channel[reg->channels] = ch;
3256                                 reg->channels++;
3257                         } else if (res == NO_IR &&
3258                                    wpa_s->conf->p2p_add_cli_chan) {
3259                                 if (cli_reg == NULL) {
3260                                         wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3261                                                    o->op_class);
3262                                         cli_reg = &cli_chan->reg_class[cli_cla];
3263                                         cli_cla++;
3264                                         cli_reg->reg_class = o->op_class;
3265                                 }
3266                                 cli_reg->channel[cli_reg->channels] = ch;
3267                                 cli_reg->channels++;
3268                         }
3269                 }
3270                 if (reg) {
3271                         wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3272                                     reg->channel, reg->channels);
3273                 }
3274                 if (cli_reg) {
3275                         wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3276                                     cli_reg->channel, cli_reg->channels);
3277                 }
3278         }
3279
3280         chan->reg_classes = cla;
3281         cli_chan->reg_classes = cli_cla;
3282
3283         return 0;
3284 }
3285
3286
3287 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3288                            struct hostapd_hw_modes *mode, u8 channel)
3289 {
3290         int op;
3291         enum chan_allowed ret;
3292
3293         for (op = 0; op_class[op].op_class; op++) {
3294                 const struct p2p_oper_class_map *o = &op_class[op];
3295                 u8 ch;
3296
3297                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3298                         if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3299                             o->bw == BW20 || ch != channel)
3300                                 continue;
3301                         ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3302                         if (ret == ALLOWED)
3303                                 return (o->bw == BW40MINUS) ? -1 : 1;
3304                 }
3305         }
3306         return 0;
3307 }
3308
3309
3310 int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3311                               struct hostapd_hw_modes *mode, u8 channel)
3312 {
3313         if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3314                 return 0;
3315
3316         return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3317 }
3318
3319
3320 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3321                         size_t buf_len)
3322 {
3323         struct wpa_supplicant *wpa_s = ctx;
3324
3325         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3326                 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3327                         break;
3328         }
3329         if (wpa_s == NULL)
3330                 return -1;
3331
3332         return wpa_drv_get_noa(wpa_s, buf, buf_len);
3333 }
3334
3335
3336 struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3337                                               const u8 *ssid, size_t ssid_len)
3338 {
3339         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3340                 struct wpa_ssid *s = wpa_s->current_ssid;
3341                 if (s == NULL)
3342                         continue;
3343                 if (s->mode != WPAS_MODE_P2P_GO &&
3344                     s->mode != WPAS_MODE_AP &&
3345                     s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3346                         continue;
3347                 if (s->ssid_len != ssid_len ||
3348                     os_memcmp(ssid, s->ssid, ssid_len) != 0)
3349                         continue;
3350                 return wpa_s;
3351         }
3352
3353         return NULL;
3354
3355 }
3356
3357
3358 struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3359                                                   const u8 *peer_dev_addr)
3360 {
3361         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3362                 struct wpa_ssid *ssid = wpa_s->current_ssid;
3363                 if (ssid == NULL)
3364                         continue;
3365                 if (ssid->mode != WPAS_MODE_INFRA)
3366                         continue;
3367                 if (wpa_s->wpa_state != WPA_COMPLETED &&
3368                     wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
3369                         continue;
3370                 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3371                         return wpa_s;
3372         }
3373
3374         return NULL;
3375 }
3376
3377
3378 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3379 {
3380         struct wpa_supplicant *wpa_s = ctx;
3381
3382         return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3383 }
3384
3385
3386 static int wpas_is_concurrent_session_active(void *ctx)
3387 {
3388         struct wpa_supplicant *wpa_s = ctx;
3389         struct wpa_supplicant *ifs;
3390
3391         for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3392                 if (ifs == wpa_s)
3393                         continue;
3394                 if (ifs->wpa_state > WPA_ASSOCIATED)
3395                         return 1;
3396         }
3397         return 0;
3398 }
3399
3400
3401 static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3402 {
3403         struct wpa_supplicant *wpa_s = ctx;
3404         wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3405 }
3406
3407
3408 int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3409                                   const char *conf_p2p_dev)
3410 {
3411         struct wpa_interface iface;
3412         struct wpa_supplicant *p2pdev_wpa_s;
3413         char ifname[100];
3414         char force_name[100];
3415         int ret;
3416
3417         ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3418                           wpa_s->ifname);
3419         if (os_snprintf_error(sizeof(ifname), ret))
3420                 return -1;
3421         force_name[0] = '\0';
3422         wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3423         ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3424                              force_name, wpa_s->pending_interface_addr, NULL);
3425         if (ret < 0) {
3426                 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3427                 return ret;
3428         }
3429         os_strlcpy(wpa_s->pending_interface_name, ifname,
3430                    sizeof(wpa_s->pending_interface_name));
3431
3432         os_memset(&iface, 0, sizeof(iface));
3433         iface.p2p_mgmt = 1;
3434         iface.ifname = wpa_s->pending_interface_name;
3435         iface.driver = wpa_s->driver->name;
3436         iface.driver_param = wpa_s->conf->driver_param;
3437
3438         /*
3439          * If a P2P Device configuration file was given, use it as the interface
3440          * configuration file (instead of using parent's configuration file.
3441          */
3442         if (conf_p2p_dev) {
3443                 iface.confname = conf_p2p_dev;
3444                 iface.ctrl_interface = NULL;
3445         } else {
3446                 iface.confname = wpa_s->confname;
3447                 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3448         }
3449         iface.conf_p2p_dev = NULL;
3450
3451         p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3452         if (!p2pdev_wpa_s) {
3453                 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3454                 return -1;
3455         }
3456         wpa_s->p2p_dev = p2pdev_wpa_s;
3457
3458         wpa_s->pending_interface_name[0] = '\0';
3459         return 0;
3460 }
3461
3462
3463 static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3464                                const u8 *noa, size_t noa_len)
3465 {
3466         struct wpa_supplicant *wpa_s, *intf = ctx;
3467         char hex[100];
3468
3469         for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3470                 if (wpa_s->waiting_presence_resp)
3471                         break;
3472         }
3473         if (!wpa_s) {
3474                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3475                 return;
3476         }
3477         wpa_s->waiting_presence_resp = 0;
3478
3479         wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3480         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3481                 " status=%u noa=%s", MAC2STR(src), status, hex);
3482 }
3483
3484
3485 static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3486                                      size_t ssid_len, u8 *go_dev_addr,
3487                                      u8 *ret_ssid, size_t *ret_ssid_len)
3488 {
3489         struct wpa_supplicant *wpa_s = ctx;
3490         struct wpa_ssid *s;
3491
3492         s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3493         if (s) {
3494                 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3495                 *ret_ssid_len = s->ssid_len;
3496                 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3497                 return 1;
3498         }
3499
3500         return 0;
3501 }
3502
3503
3504 static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3505                             u8 *ssid, size_t *ssid_len, int *group_iface)
3506 {
3507         struct wpa_supplicant *wpa_s = ctx;
3508         struct wpa_ssid *s;
3509         u8 bssid[ETH_ALEN];
3510
3511         s = wpas_p2p_group_go_ssid(wpa_s, bssid);
3512         if (!s) {
3513                 s = wpas_p2p_get_persistent_go(wpa_s);
3514                 if (s)
3515                         os_memcpy(bssid, s->bssid, ETH_ALEN);
3516         }
3517
3518         *group_iface = wpas_p2p_create_iface(wpa_s);
3519         if (!s)
3520                 return 0;
3521
3522         os_memcpy(intended_addr, bssid, ETH_ALEN);
3523         os_memcpy(ssid, s->ssid, s->ssid_len);
3524         *ssid_len = s->ssid_len;
3525
3526         return 1;
3527 }
3528
3529
3530 static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3531                                     const u8 *ssid, size_t ssid_len)
3532 {
3533         struct wpa_supplicant *wpa_s = ctx;
3534         struct wpa_ssid *s;
3535         int save_config = 0;
3536         size_t i;
3537
3538         /* Start with our first choice of Persistent Groups */
3539         while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3540                 if (go && ssid && ssid_len &&
3541                     s->ssid_len == ssid_len &&
3542                     os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3543                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
3544                         break;
3545
3546                 /* Remove stale persistent group */
3547                 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3548                         wpa_config_remove_network(wpa_s->conf, s->id);
3549                         save_config = 1;
3550                         continue;
3551                 }
3552
3553                 for (i = 0; i < s->num_p2p_clients; i++) {
3554                         if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3555                                       peer, ETH_ALEN) != 0)
3556                                 continue;
3557
3558                         os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3559                                    s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3560                                    (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3561                         break;
3562                 }
3563                 s->num_p2p_clients--;
3564                 save_config = 1;
3565         }
3566
3567         if (save_config)
3568                 p2p_config_write(wpa_s);
3569
3570         /* Return TRUE if valid SSID remains */
3571         return s != NULL;
3572 }
3573
3574
3575 static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3576                                     const u8 *adv_mac, const u8 *ses_mac,
3577                                     const u8 *grp_mac, u32 adv_id, u32 ses_id,
3578                                     u8 conncap, int passwd_id,
3579                                     const u8 *persist_ssid,
3580                                     size_t persist_ssid_size, int response_done,
3581                                     int prov_start, const char *session_info)
3582 {
3583         struct wpa_supplicant *wpa_s = ctx;
3584         u8 mac[ETH_ALEN];
3585         struct wpa_ssid *persistent_go, *stale, *s;
3586         int save_config = 0;
3587         struct wpa_supplicant *go_wpa_s;
3588
3589         if (!dev)
3590                 return;
3591
3592         os_memset(mac, 0, ETH_ALEN);
3593         if (!adv_mac)
3594                 adv_mac = mac;
3595         if (!ses_mac)
3596                 ses_mac = mac;
3597         if (!grp_mac)
3598                 grp_mac = mac;
3599
3600         if (prov_start) {
3601                 if (session_info == NULL) {
3602                         wpa_msg_global(wpa_s, MSG_INFO,
3603                                        P2P_EVENT_P2PS_PROVISION_START MACSTR
3604                                        " adv_id=%x conncap=%x"
3605                                        " adv_mac=" MACSTR
3606                                        " session=%x mac=" MACSTR
3607                                        " dev_passwd_id=%d",
3608                                        MAC2STR(dev), adv_id, conncap,
3609                                        MAC2STR(adv_mac),
3610                                        ses_id, MAC2STR(ses_mac),
3611                                        passwd_id);
3612                 } else {
3613                         wpa_msg_global(wpa_s, MSG_INFO,
3614                                        P2P_EVENT_P2PS_PROVISION_START MACSTR
3615                                        " adv_id=%x conncap=%x"
3616                                        " adv_mac=" MACSTR
3617                                        " session=%x mac=" MACSTR
3618                                        " dev_passwd_id=%d info='%s'",
3619                                        MAC2STR(dev), adv_id, conncap,
3620                                        MAC2STR(adv_mac),
3621                                        ses_id, MAC2STR(ses_mac),
3622                                        passwd_id, session_info);
3623                 }
3624                 return;
3625         }
3626
3627         go_wpa_s = wpas_p2p_get_go_group(wpa_s);
3628         persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3629
3630         if (status && status != P2P_SC_SUCCESS_DEFERRED) {
3631                 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3632                         wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3633
3634                 if (persistent_go && !persistent_go->num_p2p_clients) {
3635                         /* remove empty persistent GO */
3636                         wpa_config_remove_network(wpa_s->conf,
3637                                                   persistent_go->id);
3638                 }
3639
3640                 wpa_msg_global(wpa_s, MSG_INFO,
3641                                P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3642                                " status=%d"
3643                                " adv_id=%x adv_mac=" MACSTR
3644                                " session=%x mac=" MACSTR,
3645                                MAC2STR(dev), status,
3646                                adv_id, MAC2STR(adv_mac),
3647                                ses_id, MAC2STR(ses_mac));
3648                 return;
3649         }
3650
3651         /* Clean up stale persistent groups with this device */
3652         s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
3653                                     persist_ssid_size);
3654         for (;;) {
3655                 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
3656                 if (!stale)
3657                         break;
3658
3659                 if (s && s->ssid_len == stale->ssid_len &&
3660                     os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
3661                     os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
3662                         break;
3663
3664                 /* Remove stale persistent group */
3665                 if (stale->mode != WPAS_MODE_P2P_GO ||
3666                     stale->num_p2p_clients <= 1) {
3667                         wpa_config_remove_network(wpa_s->conf, stale->id);
3668                 } else {
3669                         size_t i;
3670
3671                         for (i = 0; i < stale->num_p2p_clients; i++) {
3672                                 if (os_memcmp(stale->p2p_client_list +
3673                                               i * ETH_ALEN,
3674                                               dev, ETH_ALEN) == 0) {
3675                                         os_memmove(stale->p2p_client_list +
3676                                                    i * ETH_ALEN,
3677                                                    stale->p2p_client_list +
3678                                                    (i + 1) * ETH_ALEN,
3679                                                    (stale->num_p2p_clients -
3680                                                     i - 1) * ETH_ALEN);
3681                                         break;
3682                                 }
3683                         }
3684                         stale->num_p2p_clients--;
3685                 }
3686                 save_config = 1;
3687         }
3688
3689         if (save_config)
3690                 p2p_config_write(wpa_s);
3691
3692         if (s) {
3693                 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3694                         wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3695
3696                 if (persistent_go && s != persistent_go &&
3697                     !persistent_go->num_p2p_clients) {
3698                         /* remove empty persistent GO */
3699                         wpa_config_remove_network(wpa_s->conf,
3700                                                   persistent_go->id);
3701                         /* Save config */
3702                 }
3703
3704                 wpa_msg_global(wpa_s, MSG_INFO,
3705                                P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3706                                " status=%d"
3707                                " adv_id=%x adv_mac=" MACSTR
3708                                " session=%x mac=" MACSTR
3709                                " persist=%d",
3710                                MAC2STR(dev), status,
3711                                adv_id, MAC2STR(adv_mac),
3712                                ses_id, MAC2STR(ses_mac), s->id);
3713                 return;
3714         }
3715
3716         if (conncap == P2PS_SETUP_GROUP_OWNER) {
3717                 const char *go_ifname = NULL;
3718                 if (!go_wpa_s) {
3719                         wpa_s->global->pending_p2ps_group = 1;
3720
3721                         if (wpa_s->conf->p2p_no_group_iface)
3722                                 go_ifname = wpa_s->ifname;
3723                         else if (wpa_s->pending_interface_name[0])
3724                                 go_ifname = wpa_s->pending_interface_name;
3725
3726                         if (!go_ifname) {
3727                                 wpas_p2ps_prov_complete(
3728                                         wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
3729                                         dev, adv_mac, ses_mac,
3730                                         NULL, adv_id, ses_id, 0, 0,
3731                                         NULL, 0, 0, 0, NULL);
3732                                 return;
3733                         }
3734
3735                         /* If PD Resp complete, start up the GO */
3736                         if (response_done && persistent_go) {
3737                                 wpas_p2p_group_add_persistent(
3738                                         wpa_s, persistent_go,
3739                                         0, 0, 0, 0, 0, NULL,
3740                                         persistent_go->mode ==
3741                                         WPAS_MODE_P2P_GO ?
3742                                         P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3743                                         0);
3744                         } else if (response_done) {
3745                                 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
3746                         }
3747
3748                         if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3749                                 os_memcpy(wpa_s->p2ps_join_addr, dev, ETH_ALEN);
3750                                 wpa_s->p2ps_join_addr_valid = 1;
3751                                 wpa_dbg(wpa_s, MSG_DEBUG,
3752                                         "P2PS: Saving PIN for " MACSTR,
3753                                         MAC2STR(dev));
3754                         }
3755                 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3756                         go_ifname = go_wpa_s->ifname;
3757
3758                         wpa_dbg(go_wpa_s, MSG_DEBUG,
3759                                 "P2P: Setting PIN-1 For " MACSTR, MAC2STR(dev));
3760                         wpa_supplicant_ap_wps_pin(go_wpa_s, dev, "12345670",
3761                                                   NULL, 0, 0);
3762
3763                         os_memcpy(wpa_s->p2ps_join_addr, dev, ETH_ALEN);
3764                         wpa_s->p2ps_join_addr_valid = 1;
3765                         wpa_dbg(wpa_s, MSG_DEBUG,
3766                                 "P2PS: Saving PIN for " MACSTR, MAC2STR(dev));
3767                 }
3768
3769                 wpa_msg_global(wpa_s, MSG_INFO,
3770                                P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3771                                " status=%d conncap=%x"
3772                                " adv_id=%x adv_mac=" MACSTR
3773                                " session=%x mac=" MACSTR
3774                                " dev_passwd_id=%d go=%s",
3775                                MAC2STR(dev), status, conncap,
3776                                adv_id, MAC2STR(adv_mac),
3777                                ses_id, MAC2STR(ses_mac),
3778                                passwd_id, go_ifname);
3779                 return;
3780         }
3781
3782         if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3783                 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3784
3785         if (persistent_go && !persistent_go->num_p2p_clients) {
3786                 /* remove empty persistent GO */
3787                 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
3788         }
3789
3790         if (conncap == P2PS_SETUP_CLIENT) {
3791                 wpa_msg_global(wpa_s, MSG_INFO,
3792                                P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3793                                " status=%d conncap=%x"
3794                                " adv_id=%x adv_mac=" MACSTR
3795                                " session=%x mac=" MACSTR
3796                                " dev_passwd_id=%d join=" MACSTR,
3797                                MAC2STR(dev), status, conncap,
3798                                adv_id, MAC2STR(adv_mac),
3799                                ses_id, MAC2STR(ses_mac),
3800                                passwd_id, MAC2STR(grp_mac));
3801         } else {
3802                 wpa_msg_global(wpa_s, MSG_INFO,
3803                                P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3804                                " status=%d conncap=%x"
3805                                " adv_id=%x adv_mac=" MACSTR
3806                                " session=%x mac=" MACSTR
3807                                " dev_passwd_id=%d",
3808                                MAC2STR(dev), status, conncap,
3809                                adv_id, MAC2STR(adv_mac),
3810                                ses_id, MAC2STR(ses_mac),
3811                                passwd_id);
3812         }
3813 }
3814
3815
3816 static int _wpas_p2p_in_progress(void *ctx)
3817 {
3818         struct wpa_supplicant *wpa_s = ctx;
3819         return wpas_p2p_in_progress(wpa_s);
3820 }
3821
3822
3823 static int wpas_prov_disc_resp_cb(void *ctx)
3824 {
3825         struct wpa_supplicant *wpa_s = ctx;
3826         struct wpa_ssid *persistent_go;
3827
3828         if (!wpa_s->global->pending_p2ps_group)
3829                 return 0;
3830
3831         wpa_s->global->pending_p2ps_group = 0;
3832
3833         if (wpas_p2p_get_go_group(wpa_s))
3834                 return 0;
3835         persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3836
3837         if (persistent_go) {
3838                 wpas_p2p_group_add_persistent(
3839                         wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
3840                         persistent_go->mode == WPAS_MODE_P2P_GO ?
3841                         P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
3842         } else {
3843                 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
3844         }
3845
3846         return 1;
3847 }
3848
3849
3850 /**
3851  * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
3852  * @global: Pointer to global data from wpa_supplicant_init()
3853  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3854  * Returns: 0 on success, -1 on failure
3855  */
3856 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
3857 {
3858         struct p2p_config p2p;
3859         int i;
3860
3861         if (wpa_s->conf->p2p_disabled)
3862                 return 0;
3863
3864         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3865                 return 0;
3866
3867         if (global->p2p)
3868                 return 0;
3869
3870         os_memset(&p2p, 0, sizeof(p2p));
3871         p2p.cb_ctx = wpa_s;
3872         p2p.debug_print = wpas_p2p_debug_print;
3873         p2p.p2p_scan = wpas_p2p_scan;
3874         p2p.send_action = wpas_send_action;
3875         p2p.send_action_done = wpas_send_action_done;
3876         p2p.go_neg_completed = wpas_go_neg_completed;
3877         p2p.go_neg_req_rx = wpas_go_neg_req_rx;
3878         p2p.dev_found = wpas_dev_found;
3879         p2p.dev_lost = wpas_dev_lost;
3880         p2p.find_stopped = wpas_find_stopped;
3881         p2p.start_listen = wpas_start_listen;
3882         p2p.stop_listen = wpas_stop_listen;
3883         p2p.send_probe_resp = wpas_send_probe_resp;
3884         p2p.sd_request = wpas_sd_request;
3885         p2p.sd_response = wpas_sd_response;
3886         p2p.prov_disc_req = wpas_prov_disc_req;
3887         p2p.prov_disc_resp = wpas_prov_disc_resp;
3888         p2p.prov_disc_fail = wpas_prov_disc_fail;
3889         p2p.invitation_process = wpas_invitation_process;
3890         p2p.invitation_received = wpas_invitation_received;
3891         p2p.invitation_result = wpas_invitation_result;
3892         p2p.get_noa = wpas_get_noa;
3893         p2p.go_connected = wpas_go_connected;
3894         p2p.presence_resp = wpas_presence_resp;
3895         p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
3896         p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
3897         p2p.get_persistent_group = wpas_get_persistent_group;
3898         p2p.get_go_info = wpas_get_go_info;
3899         p2p.remove_stale_groups = wpas_remove_stale_groups;
3900         p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
3901         p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
3902         p2p.p2ps_group_capability = p2ps_group_capability;
3903
3904         os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
3905         os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
3906         p2p.dev_name = wpa_s->conf->device_name;
3907         p2p.manufacturer = wpa_s->conf->manufacturer;
3908         p2p.model_name = wpa_s->conf->model_name;
3909         p2p.model_number = wpa_s->conf->model_number;
3910         p2p.serial_number = wpa_s->conf->serial_number;
3911         if (wpa_s->wps) {
3912                 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
3913                 p2p.config_methods = wpa_s->wps->config_methods;
3914         }
3915
3916         if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
3917                 wpa_printf(MSG_ERROR,
3918                            "P2P: Failed to configure supported channel list");
3919                 return -1;
3920         }
3921
3922         if (wpa_s->conf->p2p_listen_reg_class &&
3923             wpa_s->conf->p2p_listen_channel) {
3924                 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
3925                 p2p.channel = wpa_s->conf->p2p_listen_channel;
3926                 p2p.channel_forced = 1;
3927         } else {
3928                 /*
3929                  * Pick one of the social channels randomly as the listen
3930                  * channel.
3931                  */
3932                 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
3933                                                  &p2p.channel) != 0) {
3934                         wpa_printf(MSG_INFO,
3935                                    "P2P: No social channels supported by the driver - do not enable P2P");
3936                         return 0;
3937                 }
3938                 p2p.channel_forced = 0;
3939         }
3940         wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
3941                    p2p.reg_class, p2p.channel);
3942
3943         if (wpa_s->conf->p2p_oper_reg_class &&
3944             wpa_s->conf->p2p_oper_channel) {
3945                 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
3946                 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
3947                 p2p.cfg_op_channel = 1;
3948                 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
3949                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
3950
3951         } else {
3952                 /*
3953                  * Use random operation channel from 2.4 GHz band social
3954                  * channels (1, 6, 11) or band 60 GHz social channel (2) if no
3955                  * other preference is indicated.
3956                  */
3957                 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
3958                                                  &p2p.op_channel) != 0) {
3959                         wpa_printf(MSG_ERROR,
3960                                    "P2P: Failed to select random social channel as operation channel");
3961                         return -1;
3962                 }
3963                 p2p.cfg_op_channel = 0;
3964                 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
3965                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
3966         }
3967
3968         if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
3969                 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
3970                 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
3971         }
3972
3973         if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3974                 os_memcpy(p2p.country, wpa_s->conf->country, 2);
3975                 p2p.country[2] = 0x04;
3976         } else
3977                 os_memcpy(p2p.country, "XX\x04", 3);
3978
3979         os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
3980                   WPS_DEV_TYPE_LEN);
3981
3982         p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
3983         os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
3984                   p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
3985
3986         p2p.concurrent_operations = !!(wpa_s->drv_flags &
3987                                        WPA_DRIVER_FLAGS_P2P_CONCURRENT);
3988
3989         p2p.max_peers = 100;
3990
3991         if (wpa_s->conf->p2p_ssid_postfix) {
3992                 p2p.ssid_postfix_len =
3993                         os_strlen(wpa_s->conf->p2p_ssid_postfix);
3994                 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
3995                         p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
3996                 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
3997                           p2p.ssid_postfix_len);
3998         }
3999
4000         p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4001
4002         p2p.max_listen = wpa_s->max_remain_on_chan;
4003
4004         if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4005             wpa_s->conf->p2p_passphrase_len <= 63)
4006                 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4007         else
4008                 p2p.passphrase_len = 8;
4009
4010         global->p2p = p2p_init(&p2p);
4011         if (global->p2p == NULL)
4012                 return -1;
4013         global->p2p_init_wpa_s = wpa_s;
4014
4015         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4016                 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4017                         continue;
4018                 p2p_add_wps_vendor_extension(
4019                         global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4020         }
4021
4022         p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4023
4024         return 0;
4025 }
4026
4027
4028 /**
4029  * wpas_p2p_deinit - Deinitialize per-interface P2P data
4030  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4031  *
4032  * This function deinitialize per-interface P2P data.
4033  */
4034 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4035 {
4036         if (wpa_s->driver && wpa_s->drv_priv)
4037                 wpa_drv_probe_req_report(wpa_s, 0);
4038
4039         if (wpa_s->go_params) {
4040                 /* Clear any stored provisioning info */
4041                 p2p_clear_provisioning_info(
4042                         wpa_s->global->p2p,
4043                         wpa_s->go_params->peer_device_addr);
4044         }
4045
4046         os_free(wpa_s->go_params);
4047         wpa_s->go_params = NULL;
4048         eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4049         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4050         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4051         wpa_s->p2p_long_listen = 0;
4052         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4053         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4054         wpas_p2p_remove_pending_group_interface(wpa_s);
4055         eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4056         wpas_p2p_listen_work_done(wpa_s);
4057         if (wpa_s->p2p_send_action_work) {
4058                 os_free(wpa_s->p2p_send_action_work->ctx);
4059                 radio_work_done(wpa_s->p2p_send_action_work);
4060                 wpa_s->p2p_send_action_work = NULL;
4061         }
4062         eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4063
4064         wpabuf_free(wpa_s->p2p_oob_dev_pw);
4065         wpa_s->p2p_oob_dev_pw = NULL;
4066
4067         os_free(wpa_s->p2p_group_common_freqs);
4068         wpa_s->p2p_group_common_freqs = NULL;
4069         wpa_s->p2p_group_common_freqs_num = 0;
4070
4071         /* TODO: remove group interface from the driver if this wpa_s instance
4072          * is on top of a P2P group interface */
4073 }
4074
4075
4076 /**
4077  * wpas_p2p_deinit_global - Deinitialize global P2P module
4078  * @global: Pointer to global data from wpa_supplicant_init()
4079  *
4080  * This function deinitializes the global (per device) P2P module.
4081  */
4082 static void wpas_p2p_deinit_global(struct wpa_global *global)
4083 {
4084         struct wpa_supplicant *wpa_s, *tmp;
4085
4086         wpa_s = global->ifaces;
4087
4088         wpas_p2p_service_flush(global->p2p_init_wpa_s);
4089
4090         /* Remove remaining P2P group interfaces */
4091         while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4092                 wpa_s = wpa_s->next;
4093         while (wpa_s) {
4094                 tmp = global->ifaces;
4095                 while (tmp &&
4096                        (tmp == wpa_s ||
4097                         tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4098                         tmp = tmp->next;
4099                 }
4100                 if (tmp == NULL)
4101                         break;
4102                 /* Disconnect from the P2P group and deinit the interface */
4103                 wpas_p2p_disconnect(tmp);
4104         }
4105
4106         /*
4107          * Deinit GO data on any possibly remaining interface (if main
4108          * interface is used as GO).
4109          */
4110         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4111                 if (wpa_s->ap_iface)
4112                         wpas_p2p_group_deinit(wpa_s);
4113         }
4114
4115         p2p_deinit(global->p2p);
4116         global->p2p = NULL;
4117         global->p2p_init_wpa_s = NULL;
4118 }
4119
4120
4121 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4122 {
4123         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4124             wpa_s->conf->p2p_no_group_iface)
4125                 return 0; /* separate interface disabled per configuration */
4126         if (wpa_s->drv_flags &
4127             (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4128              WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4129                 return 1; /* P2P group requires a new interface in every case
4130                            */
4131         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4132                 return 0; /* driver does not support concurrent operations */
4133         if (wpa_s->global->ifaces->next)
4134                 return 1; /* more that one interface already in use */
4135         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4136                 return 1; /* this interface is already in use */
4137         return 0;
4138 }
4139
4140
4141 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4142                                  const u8 *peer_addr,
4143                                  enum p2p_wps_method wps_method,
4144                                  int go_intent, const u8 *own_interface_addr,
4145                                  unsigned int force_freq, int persistent_group,
4146                                  struct wpa_ssid *ssid, unsigned int pref_freq)
4147 {
4148         if (persistent_group && wpa_s->conf->persistent_reconnect)
4149                 persistent_group = 2;
4150
4151         /*
4152          * Increase GO config timeout if HT40 is used since it takes some time
4153          * to scan channels for coex purposes before the BSS can be started.
4154          */
4155         p2p_set_config_timeout(wpa_s->global->p2p,
4156                                wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4157
4158         return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4159                            go_intent, own_interface_addr, force_freq,
4160                            persistent_group, ssid ? ssid->ssid : NULL,
4161                            ssid ? ssid->ssid_len : 0,
4162                            wpa_s->p2p_pd_before_go_neg, pref_freq,
4163                            wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4164                            0);
4165 }
4166
4167
4168 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4169                                 const u8 *peer_addr,
4170                                 enum p2p_wps_method wps_method,
4171                                 int go_intent, const u8 *own_interface_addr,
4172                                 unsigned int force_freq, int persistent_group,
4173                                 struct wpa_ssid *ssid, unsigned int pref_freq)
4174 {
4175         if (persistent_group && wpa_s->conf->persistent_reconnect)
4176                 persistent_group = 2;
4177
4178         return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4179                              go_intent, own_interface_addr, force_freq,
4180                              persistent_group, ssid ? ssid->ssid : NULL,
4181                              ssid ? ssid->ssid_len : 0, pref_freq,
4182                              wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4183                              0);
4184 }
4185
4186
4187 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4188 {
4189         wpa_s->p2p_join_scan_count++;
4190         wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4191                    wpa_s->p2p_join_scan_count);
4192         if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4193                 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4194                            " for join operationg - stop join attempt",
4195                            MAC2STR(wpa_s->pending_join_iface_addr));
4196                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4197                 if (wpa_s->p2p_auto_pd) {
4198                         wpa_s->p2p_auto_pd = 0;
4199                         wpa_msg_global(wpa_s, MSG_INFO,
4200                                        P2P_EVENT_PROV_DISC_FAILURE
4201                                        " p2p_dev_addr=" MACSTR " status=N/A",
4202                                        MAC2STR(wpa_s->pending_join_dev_addr));
4203                         return;
4204                 }
4205                 wpa_msg_global(wpa_s->parent, MSG_INFO,
4206                                P2P_EVENT_GROUP_FORMATION_FAILURE);
4207         }
4208 }
4209
4210
4211 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4212 {
4213         int res;
4214         unsigned int num, i;
4215         struct wpa_used_freq_data *freqs;
4216
4217         if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4218                 /* Multiple channels are supported and not all are in use */
4219                 return 0;
4220         }
4221
4222         freqs = os_calloc(wpa_s->num_multichan_concurrent,
4223                           sizeof(struct wpa_used_freq_data));
4224         if (!freqs)
4225                 return 1;
4226
4227         num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4228                                         wpa_s->num_multichan_concurrent);
4229
4230         for (i = 0; i < num; i++) {
4231                 if (freqs[i].freq == freq) {
4232                         wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4233                                    freq);
4234                         res = 0;
4235                         goto exit_free;
4236                 }
4237         }
4238
4239         wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4240         res = 1;
4241
4242 exit_free:
4243         os_free(freqs);
4244         return res;
4245 }
4246
4247
4248 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4249                             const u8 *peer_dev_addr)
4250 {
4251         struct wpa_bss *bss;
4252         int updated;
4253
4254         bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4255         if (bss == NULL)
4256                 return -1;
4257         if (bss->last_update_idx < wpa_s->bss_update_idx) {
4258                 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4259                            "last scan");
4260                 return 0;
4261         }
4262
4263         updated = os_reltime_before(&wpa_s->p2p_auto_started,
4264                                     &bss->last_update);
4265         wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4266                    "%ld.%06ld (%supdated in last scan)",
4267                    bss->last_update.sec, bss->last_update.usec,
4268                    updated ? "": "not ");
4269
4270         return updated;
4271 }
4272
4273
4274 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4275                                    struct wpa_scan_results *scan_res)
4276 {
4277         struct wpa_bss *bss = NULL;
4278         int freq;
4279         u8 iface_addr[ETH_ALEN];
4280
4281         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4282
4283         if (wpa_s->global->p2p_disabled)
4284                 return;
4285
4286         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4287                    scan_res ? (int) scan_res->num : -1,
4288                    wpa_s->p2p_auto_join ? "auto_" : "");
4289
4290         if (scan_res)
4291                 wpas_p2p_scan_res_handler(wpa_s, scan_res);
4292
4293         if (wpa_s->p2p_auto_pd) {
4294                 int join = wpas_p2p_peer_go(wpa_s,
4295                                             wpa_s->pending_join_dev_addr);
4296                 if (join == 0 &&
4297                     wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4298                         wpa_s->auto_pd_scan_retry++;
4299                         bss = wpa_bss_get_bssid_latest(
4300                                 wpa_s, wpa_s->pending_join_dev_addr);
4301                         if (bss) {
4302                                 freq = bss->freq;
4303                                 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4304                                            "the peer " MACSTR " at %d MHz",
4305                                            wpa_s->auto_pd_scan_retry,
4306                                            MAC2STR(wpa_s->
4307                                                    pending_join_dev_addr),
4308                                            freq);
4309                                 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4310                                 return;
4311                         }
4312                 }
4313
4314                 if (join < 0)
4315                         join = 0;
4316
4317                 wpa_s->p2p_auto_pd = 0;
4318                 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4319                 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4320                            MAC2STR(wpa_s->pending_join_dev_addr), join);
4321                 if (p2p_prov_disc_req(wpa_s->global->p2p,
4322                                       wpa_s->pending_join_dev_addr, NULL,
4323                                       wpa_s->pending_pd_config_methods, join,
4324                                       0, wpa_s->user_initiated_pd) < 0) {
4325                         wpa_s->p2p_auto_pd = 0;
4326                         wpa_msg_global(wpa_s, MSG_INFO,
4327                                        P2P_EVENT_PROV_DISC_FAILURE
4328                                        " p2p_dev_addr=" MACSTR " status=N/A",
4329                                        MAC2STR(wpa_s->pending_join_dev_addr));
4330                 }
4331                 return;
4332         }
4333
4334         if (wpa_s->p2p_auto_join) {
4335                 int join = wpas_p2p_peer_go(wpa_s,
4336                                             wpa_s->pending_join_dev_addr);
4337                 if (join < 0) {
4338                         wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4339                                    "running a GO -> use GO Negotiation");
4340                         wpa_msg_global(wpa_s->parent, MSG_INFO,
4341                                        P2P_EVENT_FALLBACK_TO_GO_NEG
4342                                        "reason=peer-not-running-GO");
4343                         wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4344                                          wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4345                                          wpa_s->p2p_persistent_group, 0, 0, 0,
4346                                          wpa_s->p2p_go_intent,
4347                                          wpa_s->p2p_connect_freq,
4348                                          wpa_s->p2p_persistent_id,
4349                                          wpa_s->p2p_pd_before_go_neg,
4350                                          wpa_s->p2p_go_ht40,
4351                                          wpa_s->p2p_go_vht);
4352                         return;
4353                 }
4354
4355                 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4356                            "try to join the group", join ? "" :
4357                            " in older scan");
4358                 if (!join) {
4359                         wpa_msg_global(wpa_s->parent, MSG_INFO,
4360                                        P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4361                         wpa_s->p2p_fallback_to_go_neg = 1;
4362                 }
4363         }
4364
4365         freq = p2p_get_oper_freq(wpa_s->global->p2p,
4366                                  wpa_s->pending_join_iface_addr);
4367         if (freq < 0 &&
4368             p2p_get_interface_addr(wpa_s->global->p2p,
4369                                    wpa_s->pending_join_dev_addr,
4370                                    iface_addr) == 0 &&
4371             os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4372             && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4373                 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4374                            "address for join from " MACSTR " to " MACSTR
4375                            " based on newly discovered P2P peer entry",
4376                            MAC2STR(wpa_s->pending_join_iface_addr),
4377                            MAC2STR(iface_addr));
4378                 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4379                           ETH_ALEN);
4380
4381                 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4382                                          wpa_s->pending_join_iface_addr);
4383         }
4384         if (freq >= 0) {
4385                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4386                            "from P2P peer table: %d MHz", freq);
4387         }
4388         if (wpa_s->p2p_join_ssid_len) {
4389                 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4390                            MACSTR " and SSID %s",
4391                            MAC2STR(wpa_s->pending_join_iface_addr),
4392                            wpa_ssid_txt(wpa_s->p2p_join_ssid,
4393                                         wpa_s->p2p_join_ssid_len));
4394                 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4395                                   wpa_s->p2p_join_ssid,
4396                                   wpa_s->p2p_join_ssid_len);
4397         }
4398         if (!bss) {
4399                 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4400                            MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4401                 bss = wpa_bss_get_bssid_latest(wpa_s,
4402                                                wpa_s->pending_join_iface_addr);
4403         }
4404         if (bss) {
4405                 freq = bss->freq;
4406                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4407                            "from BSS table: %d MHz (SSID %s)", freq,
4408                            wpa_ssid_txt(bss->ssid, bss->ssid_len));
4409         }
4410         if (freq > 0) {
4411                 u16 method;
4412
4413                 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4414                         wpa_msg_global(wpa_s->parent, MSG_INFO,
4415                                        P2P_EVENT_GROUP_FORMATION_FAILURE
4416                                        "reason=FREQ_CONFLICT");
4417                         return;
4418                 }
4419
4420                 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4421                            "prior to joining an existing group (GO " MACSTR
4422                            " freq=%u MHz)",
4423                            MAC2STR(wpa_s->pending_join_dev_addr), freq);
4424                 wpa_s->pending_pd_before_join = 1;
4425
4426                 switch (wpa_s->pending_join_wps_method) {
4427                 case WPS_PIN_DISPLAY:
4428                         method = WPS_CONFIG_KEYPAD;
4429                         break;
4430                 case WPS_PIN_KEYPAD:
4431                         method = WPS_CONFIG_DISPLAY;
4432                         break;
4433                 case WPS_PBC:
4434                         method = WPS_CONFIG_PUSHBUTTON;
4435                         break;
4436                 default:
4437                         method = 0;
4438                         break;
4439                 }
4440
4441                 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4442                                                wpa_s->pending_join_dev_addr) ==
4443                      method)) {
4444                         /*
4445                          * We have already performed provision discovery for
4446                          * joining the group. Proceed directly to join
4447                          * operation without duplicated provision discovery. */
4448                         wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4449                                    "with " MACSTR " already done - proceed to "
4450                                    "join",
4451                                    MAC2STR(wpa_s->pending_join_dev_addr));
4452                         wpa_s->pending_pd_before_join = 0;
4453                         goto start;
4454                 }
4455
4456                 if (p2p_prov_disc_req(wpa_s->global->p2p,
4457                                       wpa_s->pending_join_dev_addr,
4458                                       NULL, method, 1,
4459                                       freq, wpa_s->user_initiated_pd) < 0) {
4460                         wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4461                                    "Discovery Request before joining an "
4462                                    "existing group");
4463                         wpa_s->pending_pd_before_join = 0;
4464                         goto start;
4465                 }
4466                 return;
4467         }
4468
4469         wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4470         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4471         eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4472         wpas_p2p_check_join_scan_limit(wpa_s);
4473         return;
4474
4475 start:
4476         /* Start join operation immediately */
4477         wpas_p2p_join_start(wpa_s, 0, NULL, 0);
4478 }
4479
4480
4481 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4482                                    const u8 *ssid, size_t ssid_len)
4483 {
4484         int ret;
4485         struct wpa_driver_scan_params params;
4486         struct wpabuf *wps_ie, *ies;
4487         size_t ielen;
4488         int freqs[2] = { 0, 0 };
4489
4490         os_memset(&params, 0, sizeof(params));
4491
4492         /* P2P Wildcard SSID */
4493         params.num_ssids = 1;
4494         if (ssid && ssid_len) {
4495                 params.ssids[0].ssid = ssid;
4496                 params.ssids[0].ssid_len = ssid_len;
4497                 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4498                 wpa_s->p2p_join_ssid_len = ssid_len;
4499         } else {
4500                 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4501                 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4502                 wpa_s->p2p_join_ssid_len = 0;
4503         }
4504
4505         wpa_s->wps->dev.p2p = 1;
4506         wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4507                                         wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4508                                         NULL);
4509         if (wps_ie == NULL) {
4510                 wpas_p2p_scan_res_join(wpa_s, NULL);
4511                 return;
4512         }
4513
4514         ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4515         ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4516         if (ies == NULL) {
4517                 wpabuf_free(wps_ie);
4518                 wpas_p2p_scan_res_join(wpa_s, NULL);
4519                 return;
4520         }
4521         wpabuf_put_buf(ies, wps_ie);
4522         wpabuf_free(wps_ie);
4523
4524         p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4525
4526         params.p2p_probe = 1;
4527         params.extra_ies = wpabuf_head(ies);
4528         params.extra_ies_len = wpabuf_len(ies);
4529
4530         if (!freq) {
4531                 int oper_freq;
4532                 /*
4533                  * If freq is not provided, check the operating freq of the GO
4534                  * and use a single channel scan on if possible.
4535                  */
4536                 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4537                                               wpa_s->pending_join_iface_addr);
4538                 if (oper_freq > 0)
4539                         freq = oper_freq;
4540         }
4541         if (freq > 0) {
4542                 freqs[0] = freq;
4543                 params.freqs = freqs;
4544         }
4545
4546         /*
4547          * Run a scan to update BSS table and start Provision Discovery once
4548          * the new scan results become available.
4549          */
4550         ret = wpa_drv_scan(wpa_s, &params);
4551         if (!ret) {
4552                 os_get_reltime(&wpa_s->scan_trigger_time);
4553                 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4554                 wpa_s->own_scan_requested = 1;
4555         }
4556
4557         wpabuf_free(ies);
4558
4559         if (ret) {
4560                 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4561                            "try again later");
4562                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4563                 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4564                 wpas_p2p_check_join_scan_limit(wpa_s);
4565         }
4566 }
4567
4568
4569 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4570 {
4571         struct wpa_supplicant *wpa_s = eloop_ctx;
4572         wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
4573 }
4574
4575
4576 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
4577                          const u8 *dev_addr, enum p2p_wps_method wps_method,
4578                          int auto_join, int op_freq,
4579                          const u8 *ssid, size_t ssid_len)
4580 {
4581         wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
4582                    MACSTR " dev " MACSTR " op_freq=%d)%s",
4583                    MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
4584                    auto_join ? " (auto_join)" : "");
4585         if (ssid && ssid_len) {
4586                 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4587                            wpa_ssid_txt(ssid, ssid_len));
4588         }
4589
4590         wpa_s->p2p_auto_pd = 0;
4591         wpa_s->p2p_auto_join = !!auto_join;
4592         os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4593         os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4594         wpa_s->pending_join_wps_method = wps_method;
4595
4596         /* Make sure we are not running find during connection establishment */
4597         wpas_p2p_stop_find(wpa_s);
4598
4599         wpa_s->p2p_join_scan_count = 0;
4600         wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
4601         return 0;
4602 }
4603
4604
4605 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4606                                const u8 *ssid, size_t ssid_len)
4607 {
4608         struct wpa_supplicant *group;
4609         struct p2p_go_neg_results res;
4610         struct wpa_bss *bss;
4611
4612         group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4613         if (group == NULL)
4614                 return -1;
4615         if (group != wpa_s) {
4616                 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4617                           sizeof(group->p2p_pin));
4618                 group->p2p_wps_method = wpa_s->p2p_wps_method;
4619         } else {
4620                 /*
4621                  * Need to mark the current interface for p2p_group_formation
4622                  * when a separate group interface is not used. This is needed
4623                  * to allow p2p_cancel stop a pending p2p_connect-join.
4624                  * wpas_p2p_init_group_interface() addresses this for the case
4625                  * where a separate group interface is used.
4626                  */
4627                 wpa_s->global->p2p_group_formation = wpa_s;
4628         }
4629
4630         group->p2p_in_provisioning = 1;
4631         group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
4632
4633         os_memset(&res, 0, sizeof(res));
4634         os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
4635         os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4636                   ETH_ALEN);
4637         res.wps_method = wpa_s->pending_join_wps_method;
4638         if (freq && ssid && ssid_len) {
4639                 res.freq = freq;
4640                 res.ssid_len = ssid_len;
4641                 os_memcpy(res.ssid, ssid, ssid_len);
4642         } else {
4643                 bss = wpa_bss_get_bssid_latest(wpa_s,
4644                                                wpa_s->pending_join_iface_addr);
4645                 if (bss) {
4646                         res.freq = bss->freq;
4647                         res.ssid_len = bss->ssid_len;
4648                         os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4649                         wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4650                                    bss->freq,
4651                                    wpa_ssid_txt(bss->ssid, bss->ssid_len));
4652                 }
4653         }
4654
4655         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4656                 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4657                            "starting client");
4658                 wpa_drv_cancel_remain_on_channel(wpa_s);
4659                 wpa_s->off_channel_freq = 0;
4660                 wpa_s->roc_waiting_drv_freq = 0;
4661         }
4662         wpas_start_wps_enrollee(group, &res);
4663
4664         /*
4665          * Allow a longer timeout for join-a-running-group than normal 15
4666          * second group formation timeout since the GO may not have authorized
4667          * our connection yet.
4668          */
4669         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4670         eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4671                                wpa_s, NULL);
4672
4673         return 0;
4674 }
4675
4676
4677 static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
4678                                 int *force_freq, int *pref_freq, int go)
4679 {
4680         struct wpa_used_freq_data *freqs;
4681         int res, best_freq, num_unused;
4682         unsigned int freq_in_use = 0, num, i;
4683
4684         freqs = os_calloc(wpa_s->num_multichan_concurrent,
4685                           sizeof(struct wpa_used_freq_data));
4686         if (!freqs)
4687                 return -1;
4688
4689         num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4690                                         wpa_s->num_multichan_concurrent);
4691
4692         /*
4693          * It is possible that the total number of used frequencies is bigger
4694          * than the number of frequencies used for P2P, so get the system wide
4695          * number of unused frequencies.
4696          */
4697         num_unused = wpas_p2p_num_unused_channels(wpa_s);
4698
4699         wpa_printf(MSG_DEBUG,
4700                    "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4701                    freq, wpa_s->num_multichan_concurrent, num, num_unused);
4702
4703         if (freq > 0) {
4704                 int ret;
4705                 if (go)
4706                         ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4707                 else
4708                         ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4709                 if (!ret) {
4710                         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
4711                             ieee80211_is_dfs(freq)) {
4712                                 /*
4713                                  * If freq is a DFS channel and DFS is offloaded
4714                                  * to the driver, allow P2P GO to use it.
4715                                  */
4716                                 wpa_printf(MSG_DEBUG,
4717                                            "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
4718                                            freq);
4719                         } else {
4720                                 wpa_printf(MSG_DEBUG,
4721                                            "P2P: The forced channel (%u MHz) is not supported for P2P uses",
4722                                            freq);
4723                                 res = -3;
4724                                 goto exit_free;
4725                         }
4726                 }
4727
4728                 for (i = 0; i < num; i++) {
4729                         if (freqs[i].freq == freq)
4730                                 freq_in_use = 1;
4731                 }
4732
4733                 if (num_unused <= 0 && !freq_in_use) {
4734                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4735                                    freq);
4736                         res = -2;
4737                         goto exit_free;
4738                 }
4739                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4740                            "requested channel (%u MHz)", freq);
4741                 *force_freq = freq;
4742                 goto exit_ok;
4743         }
4744
4745         best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
4746
4747         /* We have a candidate frequency to use */
4748         if (best_freq > 0) {
4749                 if (*pref_freq == 0 && num_unused > 0) {
4750                         wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
4751                                    best_freq);
4752                         *pref_freq = best_freq;
4753                 } else {
4754                         wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
4755                                    best_freq);
4756                         *force_freq = best_freq;
4757                 }
4758         } else if (num_unused > 0) {
4759                 wpa_printf(MSG_DEBUG,
4760                            "P2P: Current operating channels are not available for P2P. Try to use another channel");
4761                 *force_freq = 0;
4762         } else {
4763                 wpa_printf(MSG_DEBUG,
4764                            "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
4765                 res = -2;
4766                 goto exit_free;
4767         }
4768
4769 exit_ok:
4770         res = 0;
4771 exit_free:
4772         os_free(freqs);
4773         return res;
4774 }
4775
4776
4777 /**
4778  * wpas_p2p_connect - Request P2P Group Formation to be started
4779  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4780  * @peer_addr: Address of the peer P2P Device
4781  * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
4782  * @persistent_group: Whether to create a persistent group
4783  * @auto_join: Whether to select join vs. GO Negotiation automatically
4784  * @join: Whether to join an existing group (as a client) instead of starting
4785  *      Group Owner negotiation; @peer_addr is BSSID in that case
4786  * @auth: Whether to only authorize the connection instead of doing that and
4787  *      initiating Group Owner negotiation
4788  * @go_intent: GO Intent or -1 to use default
4789  * @freq: Frequency for the group or 0 for auto-selection
4790  * @persistent_id: Persistent group credentials to use for forcing GO
4791  *      parameters or -1 to generate new values (SSID/passphrase)
4792  * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
4793  *      interoperability workaround when initiating group formation
4794  * @ht40: Start GO with 40 MHz channel width
4795  * @vht:  Start GO with VHT support
4796  * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
4797  *      failure, -2 on failure due to channel not currently available,
4798  *      -3 if forced channel is not supported
4799  */
4800 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4801                      const char *pin, enum p2p_wps_method wps_method,
4802                      int persistent_group, int auto_join, int join, int auth,
4803                      int go_intent, int freq, int persistent_id, int pd,
4804                      int ht40, int vht)
4805 {
4806         int force_freq = 0, pref_freq = 0;
4807         int ret = 0, res;
4808         enum wpa_driver_if_type iftype;
4809         const u8 *if_addr;
4810         struct wpa_ssid *ssid = NULL;
4811
4812         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4813                 return -1;
4814
4815         if (persistent_id >= 0) {
4816                 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
4817                 if (ssid == NULL || ssid->disabled != 2 ||
4818                     ssid->mode != WPAS_MODE_P2P_GO)
4819                         return -1;
4820         }
4821
4822         os_free(wpa_s->global->add_psk);
4823         wpa_s->global->add_psk = NULL;
4824
4825         wpa_s->global->p2p_fail_on_wps_complete = 0;
4826         wpa_s->global->pending_p2ps_group = 0;
4827
4828         if (go_intent < 0)
4829                 go_intent = wpa_s->conf->p2p_go_intent;
4830
4831         if (!auth)
4832                 wpa_s->p2p_long_listen = 0;
4833
4834         wpa_s->p2p_wps_method = wps_method;
4835         wpa_s->p2p_persistent_group = !!persistent_group;
4836         wpa_s->p2p_persistent_id = persistent_id;
4837         wpa_s->p2p_go_intent = go_intent;
4838         wpa_s->p2p_connect_freq = freq;
4839         wpa_s->p2p_fallback_to_go_neg = 0;
4840         wpa_s->p2p_pd_before_go_neg = !!pd;
4841         wpa_s->p2p_go_ht40 = !!ht40;
4842         wpa_s->p2p_go_vht = !!vht;
4843
4844         if (pin)
4845                 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
4846         else if (wps_method == WPS_PIN_DISPLAY) {
4847                 ret = wps_generate_pin();
4848                 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
4849                                   "%08d", ret);
4850                 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
4851                         wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
4852                 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
4853                            wpa_s->p2p_pin);
4854         } else
4855                 wpa_s->p2p_pin[0] = '\0';
4856
4857         if (join || auto_join) {
4858                 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
4859                 if (auth) {
4860                         wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
4861                                    "connect a running group from " MACSTR,
4862                                    MAC2STR(peer_addr));
4863                         os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
4864                         return ret;
4865                 }
4866                 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
4867                 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4868                                            iface_addr) < 0) {
4869                         os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4870                         p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
4871                                          dev_addr);
4872                 }
4873                 if (auto_join) {
4874                         os_get_reltime(&wpa_s->p2p_auto_started);
4875                         wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
4876                                    "%ld.%06ld",
4877                                    wpa_s->p2p_auto_started.sec,
4878                                    wpa_s->p2p_auto_started.usec);
4879                 }
4880                 wpa_s->user_initiated_pd = 1;
4881                 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
4882                                   auto_join, freq, NULL, 0) < 0)
4883                         return -1;
4884                 return ret;
4885         }
4886
4887         res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
4888                                    go_intent == 15);
4889         if (res)
4890                 return res;
4891         wpas_p2p_set_own_freq_preference(wpa_s,
4892                                          force_freq ? force_freq : pref_freq);
4893
4894         wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
4895
4896         if (wpa_s->create_p2p_iface) {
4897                 /* Prepare to add a new interface for the group */
4898                 iftype = WPA_IF_P2P_GROUP;
4899                 if (go_intent == 15)
4900                         iftype = WPA_IF_P2P_GO;
4901                 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
4902                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
4903                                    "interface for the group");
4904                         return -1;
4905                 }
4906
4907                 if_addr = wpa_s->pending_interface_addr;
4908         } else
4909                 if_addr = wpa_s->own_addr;
4910
4911         if (auth) {
4912                 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
4913                                          go_intent, if_addr,
4914                                          force_freq, persistent_group, ssid,
4915                                          pref_freq) < 0)
4916                         return -1;
4917                 return ret;
4918         }
4919
4920         if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
4921                                   go_intent, if_addr, force_freq,
4922                                   persistent_group, ssid, pref_freq) < 0) {
4923                 if (wpa_s->create_p2p_iface)
4924                         wpas_p2p_remove_pending_group_interface(wpa_s);
4925                 return -1;
4926         }
4927         return ret;
4928 }
4929
4930
4931 /**
4932  * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
4933  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4934  * @freq: Frequency of the channel in MHz
4935  * @duration: Duration of the stay on the channel in milliseconds
4936  *
4937  * This callback is called when the driver indicates that it has started the
4938  * requested remain-on-channel duration.
4939  */
4940 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4941                                    unsigned int freq, unsigned int duration)
4942 {
4943         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4944                 return;
4945         wpa_printf(MSG_DEBUG, "P2P: remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u duration=%u)",
4946                    wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
4947                    wpa_s->roc_waiting_drv_freq, freq, duration);
4948         if (wpa_s->off_channel_freq &&
4949             wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
4950                 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
4951                               wpa_s->pending_listen_duration);
4952                 wpa_s->pending_listen_freq = 0;
4953         } else {
4954                 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
4955                            wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
4956                            freq, duration);
4957         }
4958 }
4959
4960
4961 int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
4962 {
4963         /* Limit maximum Listen state time based on driver limitation. */
4964         if (timeout > wpa_s->max_remain_on_chan)
4965                 timeout = wpa_s->max_remain_on_chan;
4966
4967         return p2p_listen(wpa_s->global->p2p, timeout);
4968 }
4969
4970
4971 /**
4972  * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
4973  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4974  * @freq: Frequency of the channel in MHz
4975  *
4976  * This callback is called when the driver indicates that a remain-on-channel
4977  * operation has been completed, i.e., the duration on the requested channel
4978  * has timed out.
4979  */
4980 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4981                                           unsigned int freq)
4982 {
4983         wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
4984                    "(p2p_long_listen=%d ms pending_action_tx=%p)",
4985                    wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
4986         wpas_p2p_listen_work_done(wpa_s);
4987         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4988                 return;
4989         if (wpa_s->p2p_long_listen > 0)
4990                 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
4991         if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
4992                 return; /* P2P module started a new operation */
4993         if (offchannel_pending_action_tx(wpa_s))
4994                 return;
4995         if (wpa_s->p2p_long_listen > 0) {
4996                 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
4997                 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
4998         } else {
4999                 /*
5000                  * When listen duration is over, stop listen & update p2p_state
5001                  * to IDLE.
5002                  */
5003                 p2p_stop_listen(wpa_s->global->p2p);
5004         }
5005 }
5006
5007
5008 /**
5009  * wpas_p2p_group_remove - Remove a P2P group
5010  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5011  * @ifname: Network interface name of the group interface or "*" to remove all
5012  *      groups
5013  * Returns: 0 on success, -1 on failure
5014  *
5015  * This function is used to remove a P2P group. This can be used to disconnect
5016  * from a group in which the local end is a P2P Client or to end a P2P Group in
5017  * case the local end is the Group Owner. If a virtual network interface was
5018  * created for this group, that interface will be removed. Otherwise, only the
5019  * configured P2P group network will be removed from the interface.
5020  */
5021 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5022 {
5023         struct wpa_global *global = wpa_s->global;
5024         struct wpa_supplicant *calling_wpa_s = wpa_s;
5025
5026         if (os_strcmp(ifname, "*") == 0) {
5027                 struct wpa_supplicant *prev;
5028                 wpa_s = global->ifaces;
5029                 while (wpa_s) {
5030                         prev = wpa_s;
5031                         wpa_s = wpa_s->next;
5032                         if (prev->p2p_group_interface !=
5033                             NOT_P2P_GROUP_INTERFACE ||
5034                             (prev->current_ssid &&
5035                              prev->current_ssid->p2p_group))
5036                                 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5037                 }
5038                 return 0;
5039         }
5040
5041         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5042                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5043                         break;
5044         }
5045
5046         return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5047 }
5048
5049
5050 static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5051 {
5052         unsigned int r;
5053
5054         if (freq == 2) {
5055                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5056                            "band");
5057                 if (wpa_s->best_24_freq > 0 &&
5058                     p2p_supported_freq_go(wpa_s->global->p2p,
5059                                           wpa_s->best_24_freq)) {
5060                         freq = wpa_s->best_24_freq;
5061                         wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5062                                    "channel: %d MHz", freq);
5063                 } else {
5064                         if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5065                                 return -1;
5066                         freq = 2412 + (r % 3) * 25;
5067                         wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5068                                    "channel: %d MHz", freq);
5069                 }
5070         }
5071
5072         if (freq == 5) {
5073                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5074                            "band");
5075                 if (wpa_s->best_5_freq > 0 &&
5076                     p2p_supported_freq_go(wpa_s->global->p2p,
5077                                        wpa_s->best_5_freq)) {
5078                         freq = wpa_s->best_5_freq;
5079                         wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5080                                    "channel: %d MHz", freq);
5081                 } else {
5082                         if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5083                                 return -1;
5084                         freq = 5180 + (r % 4) * 20;
5085                         if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5086                                 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5087                                            "5 GHz channel for P2P group");
5088                                 return -1;
5089                         }
5090                         wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5091                                    "channel: %d MHz", freq);
5092                 }
5093         }
5094
5095         if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5096                 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5097                     ieee80211_is_dfs(freq)) {
5098                         /*
5099                          * If freq is a DFS channel and DFS is offloaded to the
5100                          * driver, allow P2P GO to use it.
5101                          */
5102                         wpa_printf(MSG_DEBUG, "P2P: "
5103                                    "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5104                                    __func__, freq);
5105                         return freq;
5106                 }
5107                 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5108                            "(%u MHz) is not supported for P2P uses",
5109                            freq);
5110                 return -1;
5111         }
5112
5113         return freq;
5114 }
5115
5116
5117 static int wpas_p2p_select_freq_no_pref(struct wpa_supplicant *wpa_s,
5118                                         struct p2p_go_neg_results *params,
5119                                         const struct p2p_channels *channels)
5120 {
5121         unsigned int i, r;
5122
5123         /* first try some random selection of the social channels */
5124         if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5125                 return -1;
5126
5127         for (i = 0; i < 3; i++) {
5128                 params->freq = 2412 + ((r + i) % 3) * 25;
5129                 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5130                     freq_included(channels, params->freq) &&
5131                     p2p_supported_freq(wpa_s->global->p2p, params->freq))
5132                         goto out;
5133         }
5134
5135         /* try all channels in reg. class 81 */
5136         for (i = 0; i < 11; i++) {
5137                 params->freq = 2412 + i * 5;
5138                 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5139                     freq_included(channels, params->freq) &&
5140                     p2p_supported_freq(wpa_s->global->p2p, params->freq))
5141                         goto out;
5142         }
5143
5144         /* try all channels in operating class 115 */
5145         for (i = 0; i < 4; i++) {
5146                 params->freq = 5180 + i * 20;
5147                 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5148                     freq_included(channels, params->freq) &&
5149                     p2p_supported_freq(wpa_s->global->p2p, params->freq))
5150                         goto out;
5151         }
5152
5153         /* try all channels in operating class 124 */
5154         for (i = 0; i < 4; i++) {
5155                 params->freq = 5745 + i * 20;
5156                 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5157                     freq_included(channels, params->freq) &&
5158                     p2p_supported_freq(wpa_s->global->p2p, params->freq))
5159                         goto out;
5160         }
5161
5162         /* try social channel class 180 channel 2 */
5163         params->freq = 58320 + 1 * 2160;
5164         if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5165             freq_included(channels, params->freq) &&
5166             p2p_supported_freq(wpa_s->global->p2p, params->freq))
5167                 goto out;
5168
5169         /* try all channels in reg. class 180 */
5170         for (i = 0; i < 4; i++) {
5171                 params->freq = 58320 + i * 2160;
5172                 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5173                     freq_included(channels, params->freq) &&
5174                     p2p_supported_freq(wpa_s->global->p2p, params->freq))
5175                         goto out;
5176         }
5177
5178         wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5179         return -1;
5180 out:
5181         wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5182                    params->freq);
5183         return 0;
5184 }
5185
5186
5187 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5188                                    struct p2p_go_neg_results *params,
5189                                    int freq, int ht40, int vht,
5190                                    const struct p2p_channels *channels)
5191 {
5192         struct wpa_used_freq_data *freqs;
5193         unsigned int pref_freq, cand_freq;
5194         unsigned int num, i;
5195
5196         os_memset(params, 0, sizeof(*params));
5197         params->role_go = 1;
5198         params->ht40 = ht40;
5199         params->vht = vht;
5200         if (freq) {
5201                 if (!freq_included(channels, freq)) {
5202                         wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
5203                                    "accepted", freq);
5204                         return -1;
5205                 }
5206                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
5207                            "frequency %d MHz", freq);
5208                 params->freq = freq;
5209         } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5210                    wpa_s->conf->p2p_oper_channel >= 1 &&
5211                    wpa_s->conf->p2p_oper_channel <= 11 &&
5212                    freq_included(channels,
5213                                  2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5214                 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5215                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5216                            "frequency %d MHz", params->freq);
5217         } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5218                     wpa_s->conf->p2p_oper_reg_class == 116 ||
5219                     wpa_s->conf->p2p_oper_reg_class == 117 ||
5220                     wpa_s->conf->p2p_oper_reg_class == 124 ||
5221                     wpa_s->conf->p2p_oper_reg_class == 126 ||
5222                     wpa_s->conf->p2p_oper_reg_class == 127) &&
5223                    freq_included(channels,
5224                                  5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
5225                 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5226                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5227                            "frequency %d MHz", params->freq);
5228         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5229                    wpa_s->best_overall_freq > 0 &&
5230                    p2p_supported_freq_go(wpa_s->global->p2p,
5231                                          wpa_s->best_overall_freq) &&
5232                    freq_included(channels, wpa_s->best_overall_freq)) {
5233                 params->freq = wpa_s->best_overall_freq;
5234                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5235                            "channel %d MHz", params->freq);
5236         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5237                    wpa_s->best_24_freq > 0 &&
5238                    p2p_supported_freq_go(wpa_s->global->p2p,
5239                                          wpa_s->best_24_freq) &&
5240                    freq_included(channels, wpa_s->best_24_freq)) {
5241                 params->freq = wpa_s->best_24_freq;
5242                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5243                            "channel %d MHz", params->freq);
5244         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5245                    wpa_s->best_5_freq > 0 &&
5246                    p2p_supported_freq_go(wpa_s->global->p2p,
5247                                          wpa_s->best_5_freq) &&
5248                    freq_included(channels, wpa_s->best_5_freq)) {
5249                 params->freq = wpa_s->best_5_freq;
5250                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5251                            "channel %d MHz", params->freq);
5252         } else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
5253                                                   channels))) {
5254                 params->freq = pref_freq;
5255                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5256                            "channels", params->freq);
5257         } else {
5258                 /* no preference, select some channel */
5259                 if (wpas_p2p_select_freq_no_pref(wpa_s, params, channels) < 0)
5260                         return -1;
5261         }
5262
5263         freqs = os_calloc(wpa_s->num_multichan_concurrent,
5264                           sizeof(struct wpa_used_freq_data));
5265         if (!freqs)
5266                 return -1;
5267
5268         num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5269                                         wpa_s->num_multichan_concurrent);
5270
5271         cand_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5272
5273         /* First try the best used frequency if possible */
5274         if (!freq && cand_freq > 0 && freq_included(channels, cand_freq)) {
5275                 params->freq = cand_freq;
5276         } else if (!freq) {
5277                 /* Try any of the used frequencies */
5278                 for (i = 0; i < num; i++) {
5279                         if (freq_included(channels, freqs[i].freq)) {
5280                                 wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
5281                                            freqs[i].freq);
5282                                 params->freq = freqs[i].freq;
5283                                 break;
5284                         }
5285                 }
5286
5287                 if (i == num) {
5288                         if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5289                                 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
5290                                 os_free(freqs);
5291                                 return -1;
5292                         } else {
5293                                 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
5294                         }
5295                 }
5296         } else {
5297                 for (i = 0; i < num; i++) {
5298                         if (freqs[i].freq == freq)
5299                                 break;
5300                 }
5301
5302                 if (i == num) {
5303                         if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5304                                 if (freq)
5305                                         wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
5306                                 os_free(freqs);
5307                                 return -1;
5308                         } else {
5309                                 wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
5310                         }
5311                 }
5312         }
5313
5314         os_free(freqs);
5315         return 0;
5316 }
5317
5318
5319 static struct wpa_supplicant *
5320 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5321                          int go)
5322 {
5323         struct wpa_supplicant *group_wpa_s;
5324
5325         if (!wpas_p2p_create_iface(wpa_s)) {
5326                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5327                         "operations");
5328                 wpa_s->p2p_first_connection_timeout = 0;
5329                 return wpa_s;
5330         }
5331
5332         if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
5333                                          WPA_IF_P2P_CLIENT) < 0) {
5334                 wpa_msg_global(wpa_s, MSG_ERROR,
5335                                "P2P: Failed to add group interface");
5336                 return NULL;
5337         }
5338         group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5339         if (group_wpa_s == NULL) {
5340                 wpa_msg_global(wpa_s, MSG_ERROR,
5341                                "P2P: Failed to initialize group interface");
5342                 wpas_p2p_remove_pending_group_interface(wpa_s);
5343                 return NULL;
5344         }
5345
5346         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5347                 group_wpa_s->ifname);
5348         group_wpa_s->p2p_first_connection_timeout = 0;
5349         return group_wpa_s;
5350 }
5351
5352
5353 /**
5354  * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5355  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5356  * @persistent_group: Whether to create a persistent group
5357  * @freq: Frequency for the group or 0 to indicate no hardcoding
5358  * @ht40: Start GO with 40 MHz channel width
5359  * @vht:  Start GO with VHT support
5360  * Returns: 0 on success, -1 on failure
5361  *
5362  * This function creates a new P2P group with the local end as the Group Owner,
5363  * i.e., without using Group Owner Negotiation.
5364  */
5365 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
5366                        int freq, int ht40, int vht)
5367 {
5368         struct p2p_go_neg_results params;
5369
5370         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5371                 return -1;
5372
5373         os_free(wpa_s->global->add_psk);
5374         wpa_s->global->add_psk = NULL;
5375
5376         /* Make sure we are not running find during connection establishment */
5377         wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
5378         wpas_p2p_stop_find_oper(wpa_s);
5379
5380         freq = wpas_p2p_select_go_freq(wpa_s, freq);
5381         if (freq < 0)
5382                 return -1;
5383
5384         if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, NULL))
5385                 return -1;
5386         if (params.freq &&
5387             !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
5388                 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5389                     ieee80211_is_dfs(params.freq)) {
5390                         /*
5391                          * If freq is a DFS channel and DFS is offloaded to the
5392                          * driver, allow P2P GO to use it.
5393                          */
5394                         wpa_printf(MSG_DEBUG,
5395                                    "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
5396                                 __func__, params.freq);
5397                 } else {
5398                         wpa_printf(MSG_DEBUG,
5399                                    "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
5400                                    params.freq);
5401                         return -1;
5402                 }
5403         }
5404         p2p_go_params(wpa_s->global->p2p, &params);
5405         params.persistent_group = persistent_group;
5406
5407         wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5408         if (wpa_s == NULL)
5409                 return -1;
5410         wpas_start_wps_go(wpa_s, &params, 0);
5411
5412         return 0;
5413 }
5414
5415
5416 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
5417                                  struct wpa_ssid *params, int addr_allocated,
5418                                  int freq)
5419 {
5420         struct wpa_ssid *ssid;
5421
5422         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5423         if (wpa_s == NULL)
5424                 return -1;
5425         wpa_s->p2p_last_4way_hs_fail = NULL;
5426
5427         wpa_supplicant_ap_deinit(wpa_s);
5428
5429         ssid = wpa_config_add_network(wpa_s->conf);
5430         if (ssid == NULL)
5431                 return -1;
5432         wpa_config_set_network_defaults(ssid);
5433         ssid->temporary = 1;
5434         ssid->proto = WPA_PROTO_RSN;
5435         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5436         ssid->group_cipher = WPA_CIPHER_CCMP;
5437         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5438         ssid->ssid = os_malloc(params->ssid_len);
5439         if (ssid->ssid == NULL) {
5440                 wpa_config_remove_network(wpa_s->conf, ssid->id);
5441                 return -1;
5442         }
5443         os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5444         ssid->ssid_len = params->ssid_len;
5445         ssid->p2p_group = 1;
5446         ssid->export_keys = 1;
5447         if (params->psk_set) {
5448                 os_memcpy(ssid->psk, params->psk, 32);
5449                 ssid->psk_set = 1;
5450         }
5451         if (params->passphrase)
5452                 ssid->passphrase = os_strdup(params->passphrase);
5453
5454         wpa_s->show_group_started = 1;
5455         wpa_s->p2p_in_invitation = 1;
5456         wpa_s->p2p_invite_go_freq = freq;
5457
5458         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5459                              NULL);
5460         eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5461                                wpas_p2p_group_formation_timeout,
5462                                wpa_s->parent, NULL);
5463         wpa_supplicant_select_network(wpa_s, ssid);
5464
5465         return 0;
5466 }
5467
5468
5469 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5470                                   struct wpa_ssid *ssid, int addr_allocated,
5471                                   int force_freq, int neg_freq, int ht40,
5472                                   int vht, const struct p2p_channels *channels,
5473                                   int connection_timeout)
5474 {
5475         struct p2p_go_neg_results params;
5476         int go = 0, freq;
5477
5478         if (ssid->disabled != 2 || ssid->ssid == NULL)
5479                 return -1;
5480
5481         if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5482             go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5483                 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5484                            "already running");
5485                 return 0;
5486         }
5487
5488         os_free(wpa_s->global->add_psk);
5489         wpa_s->global->add_psk = NULL;
5490
5491         /* Make sure we are not running find during connection establishment */
5492         wpas_p2p_stop_find_oper(wpa_s);
5493
5494         wpa_s->p2p_fallback_to_go_neg = 0;
5495
5496         if (ssid->mode == WPAS_MODE_P2P_GO) {
5497                 if (force_freq > 0) {
5498                         freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5499                         if (freq < 0)
5500                                 return -1;
5501                 } else {
5502                         freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5503                         if (freq < 0 ||
5504                             (freq > 0 && !freq_included(channels, freq)))
5505                                 freq = 0;
5506                 }
5507         } else if (ssid->mode == WPAS_MODE_INFRA) {
5508                 freq = neg_freq;
5509                 if (freq <= 0 || !freq_included(channels, freq)) {
5510                         struct os_reltime now;
5511                         struct wpa_bss *bss =
5512                                 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
5513
5514                         os_get_reltime(&now);
5515                         if (bss &&
5516                             !os_reltime_expired(&now, &bss->last_update, 5) &&
5517                             freq_included(channels, bss->freq))
5518                                 freq = bss->freq;
5519                         else
5520                                 freq = 0;
5521                 }
5522
5523                 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq);
5524         } else {
5525                 return -1;
5526         }
5527
5528         if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, channels))
5529                 return -1;
5530
5531         params.role_go = 1;
5532         params.psk_set = ssid->psk_set;
5533         if (params.psk_set)
5534                 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
5535         if (ssid->passphrase) {
5536                 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
5537                         wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
5538                                    "persistent group");
5539                         return -1;
5540                 }
5541                 os_strlcpy(params.passphrase, ssid->passphrase,
5542                            sizeof(params.passphrase));
5543         }
5544         os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
5545         params.ssid_len = ssid->ssid_len;
5546         params.persistent_group = 1;
5547
5548         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
5549         if (wpa_s == NULL)
5550                 return -1;
5551
5552         p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
5553
5554         wpa_s->p2p_first_connection_timeout = connection_timeout;
5555         wpas_start_wps_go(wpa_s, &params, 0);
5556
5557         return 0;
5558 }
5559
5560
5561 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
5562                                struct wpabuf *proberesp_ies)
5563 {
5564         struct wpa_supplicant *wpa_s = ctx;
5565         if (wpa_s->ap_iface) {
5566                 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
5567                 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
5568                         wpabuf_free(beacon_ies);
5569                         wpabuf_free(proberesp_ies);
5570                         return;
5571                 }
5572                 if (beacon_ies) {
5573                         wpabuf_free(hapd->p2p_beacon_ie);
5574                         hapd->p2p_beacon_ie = beacon_ies;
5575                 }
5576                 wpabuf_free(hapd->p2p_probe_resp_ie);
5577                 hapd->p2p_probe_resp_ie = proberesp_ies;
5578         } else {
5579                 wpabuf_free(beacon_ies);
5580                 wpabuf_free(proberesp_ies);
5581         }
5582         wpa_supplicant_ap_update_beacon(wpa_s);
5583 }
5584
5585
5586 static void wpas_p2p_idle_update(void *ctx, int idle)
5587 {
5588         struct wpa_supplicant *wpa_s = ctx;
5589         if (!wpa_s->ap_iface)
5590                 return;
5591         wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
5592         if (idle) {
5593                 if (wpa_s->global->p2p_fail_on_wps_complete &&
5594                     wpa_s->p2p_in_provisioning) {
5595                         wpas_p2p_grpform_fail_after_wps(wpa_s);
5596                         return;
5597                 }
5598                 wpas_p2p_set_group_idle_timeout(wpa_s);
5599         } else
5600                 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
5601 }
5602
5603
5604 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
5605                                        struct wpa_ssid *ssid)
5606 {
5607         struct p2p_group *group;
5608         struct p2p_group_config *cfg;
5609
5610         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5611                 return NULL;
5612
5613         cfg = os_zalloc(sizeof(*cfg));
5614         if (cfg == NULL)
5615                 return NULL;
5616
5617         if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
5618                 cfg->persistent_group = 2;
5619         else if (ssid->p2p_persistent_group)
5620                 cfg->persistent_group = 1;
5621         os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
5622         if (wpa_s->max_stations &&
5623             wpa_s->max_stations < wpa_s->conf->max_num_sta)
5624                 cfg->max_clients = wpa_s->max_stations;
5625         else
5626                 cfg->max_clients = wpa_s->conf->max_num_sta;
5627         os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
5628         cfg->ssid_len = ssid->ssid_len;
5629         cfg->freq = ssid->frequency;
5630         cfg->cb_ctx = wpa_s;
5631         cfg->ie_update = wpas_p2p_ie_update;
5632         cfg->idle_update = wpas_p2p_idle_update;
5633
5634         group = p2p_group_init(wpa_s->global->p2p, cfg);
5635         if (group == NULL)
5636                 os_free(cfg);
5637         if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
5638                 p2p_group_notif_formation_done(group);
5639         wpa_s->p2p_group = group;
5640         return group;
5641 }
5642
5643
5644 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5645                           int registrar)
5646 {
5647         struct wpa_ssid *ssid = wpa_s->current_ssid;
5648
5649         if (!wpa_s->p2p_in_provisioning) {
5650                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
5651                            "provisioning not in progress");
5652                 return;
5653         }
5654
5655         if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5656                 u8 go_dev_addr[ETH_ALEN];
5657                 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
5658                 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
5659                                           ssid->ssid_len);
5660                 /* Clear any stored provisioning info */
5661                 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
5662         }
5663
5664         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5665                              NULL);
5666         wpa_s->p2p_go_group_formation_completed = 1;
5667         if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5668                 /*
5669                  * Use a separate timeout for initial data connection to
5670                  * complete to allow the group to be removed automatically if
5671                  * something goes wrong in this step before the P2P group idle
5672                  * timeout mechanism is taken into use.
5673                  */
5674                 wpa_dbg(wpa_s, MSG_DEBUG,
5675                         "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
5676                         P2P_MAX_INITIAL_CONN_WAIT);
5677                 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5678                                        wpas_p2p_group_formation_timeout,
5679                                        wpa_s->parent, NULL);
5680         } else if (ssid) {
5681                 /*
5682                  * Use a separate timeout for initial data connection to
5683                  * complete to allow the group to be removed automatically if
5684                  * the client does not complete data connection successfully.
5685                  */
5686                 wpa_dbg(wpa_s, MSG_DEBUG,
5687                         "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
5688                         P2P_MAX_INITIAL_CONN_WAIT_GO);
5689                 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
5690                                        wpas_p2p_group_formation_timeout,
5691                                        wpa_s->parent, NULL);
5692                 /*
5693                  * Complete group formation on first successful data connection
5694                  */
5695                 wpa_s->p2p_go_group_formation_completed = 0;
5696         }
5697         if (wpa_s->global->p2p)
5698                 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
5699         wpas_group_formation_completed(wpa_s, 1);
5700 }
5701
5702
5703 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
5704                          struct wps_event_fail *fail)
5705 {
5706         if (!wpa_s->p2p_in_provisioning) {
5707                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
5708                            "provisioning not in progress");
5709                 return;
5710         }
5711
5712         if (wpa_s->go_params) {
5713                 p2p_clear_provisioning_info(
5714                         wpa_s->global->p2p,
5715                         wpa_s->go_params->peer_device_addr);
5716         }
5717
5718         wpas_notify_p2p_wps_failed(wpa_s, fail);
5719
5720         if (wpa_s == wpa_s->global->p2p_group_formation) {
5721                 /*
5722                  * Allow some time for the failed WPS negotiation exchange to
5723                  * complete, but remove the group since group formation cannot
5724                  * succeed after provisioning failure.
5725                  */
5726                 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
5727                 wpa_s->global->p2p_fail_on_wps_complete = 1;
5728                 eloop_deplete_timeout(0, 50000,
5729                                       wpas_p2p_group_formation_timeout,
5730                                       wpa_s->parent, NULL);
5731         }
5732 }
5733
5734
5735 int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
5736 {
5737         if (!wpa_s->global->p2p_fail_on_wps_complete ||
5738             !wpa_s->p2p_in_provisioning)
5739                 return 0;
5740
5741         wpas_p2p_grpform_fail_after_wps(wpa_s);
5742
5743         return 1;
5744 }
5745
5746
5747 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5748                        const char *config_method,
5749                        enum wpas_p2p_prov_disc_use use,
5750                        struct p2ps_provision *p2ps_prov)
5751 {
5752         u16 config_methods;
5753
5754         wpa_s->global->pending_p2ps_group = 0;
5755         wpa_s->p2p_fallback_to_go_neg = 0;
5756         wpa_s->pending_pd_use = NORMAL_PD;
5757         if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
5758                 p2ps_prov->conncap = p2ps_group_capability(
5759                         wpa_s, P2PS_SETUP_NONE, p2ps_prov->role);
5760                 wpa_printf(MSG_DEBUG,
5761                            "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
5762                            __func__, p2ps_prov->conncap,
5763                            p2ps_prov->adv_id, p2ps_prov->conncap,
5764                            p2ps_prov->status, p2ps_prov->info);
5765
5766                 config_methods = 0;
5767         } else if (os_strncmp(config_method, "display", 7) == 0)
5768                 config_methods = WPS_CONFIG_DISPLAY;
5769         else if (os_strncmp(config_method, "keypad", 6) == 0)
5770                 config_methods = WPS_CONFIG_KEYPAD;
5771         else if (os_strncmp(config_method, "pbc", 3) == 0 ||
5772                  os_strncmp(config_method, "pushbutton", 10) == 0)
5773                 config_methods = WPS_CONFIG_PUSHBUTTON;
5774         else {
5775                 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
5776                 os_free(p2ps_prov);
5777                 return -1;
5778         }
5779
5780         if (use == WPAS_P2P_PD_AUTO) {
5781                 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
5782                 wpa_s->pending_pd_config_methods = config_methods;
5783                 wpa_s->p2p_auto_pd = 1;
5784                 wpa_s->p2p_auto_join = 0;
5785                 wpa_s->pending_pd_before_join = 0;
5786                 wpa_s->auto_pd_scan_retry = 0;
5787                 wpas_p2p_stop_find(wpa_s);
5788                 wpa_s->p2p_join_scan_count = 0;
5789                 os_get_reltime(&wpa_s->p2p_auto_started);
5790                 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
5791                            wpa_s->p2p_auto_started.sec,
5792                            wpa_s->p2p_auto_started.usec);
5793                 wpas_p2p_join_scan(wpa_s, NULL);
5794                 return 0;
5795         }
5796
5797         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
5798                 os_free(p2ps_prov);
5799                 return -1;
5800         }
5801
5802         return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
5803                                  config_methods, use == WPAS_P2P_PD_FOR_JOIN,
5804                                  0, 1);
5805 }
5806
5807
5808 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
5809                               char *end)
5810 {
5811         return p2p_scan_result_text(ies, ies_len, buf, end);
5812 }
5813
5814
5815 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
5816 {
5817         if (!offchannel_pending_action_tx(wpa_s))
5818                 return;
5819
5820         wpas_p2p_action_tx_clear(wpa_s);
5821
5822         wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
5823                    "operation request");
5824         offchannel_clear_pending_action_tx(wpa_s);
5825 }
5826
5827
5828 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
5829                   enum p2p_discovery_type type,
5830                   unsigned int num_req_dev_types, const u8 *req_dev_types,
5831                   const u8 *dev_id, unsigned int search_delay,
5832                   u8 seek_cnt, const char **seek_string, int freq)
5833 {
5834         wpas_p2p_clear_pending_action_tx(wpa_s);
5835         wpa_s->p2p_long_listen = 0;
5836
5837         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
5838             wpa_s->p2p_in_provisioning)
5839                 return -1;
5840
5841         wpa_supplicant_cancel_sched_scan(wpa_s);
5842
5843         return p2p_find(wpa_s->global->p2p, timeout, type,
5844                         num_req_dev_types, req_dev_types, dev_id,
5845                         search_delay, seek_cnt, seek_string, freq);
5846 }
5847
5848
5849 static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
5850                                             struct wpa_scan_results *scan_res)
5851 {
5852         wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
5853
5854         if (wpa_s->p2p_scan_work) {
5855                 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
5856                 wpa_s->p2p_scan_work = NULL;
5857                 radio_work_done(work);
5858         }
5859
5860         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5861                 return;
5862
5863         /*
5864          * Indicate that results have been processed so that the P2P module can
5865          * continue pending tasks.
5866          */
5867         p2p_scan_res_handled(wpa_s->global->p2p);
5868 }
5869
5870
5871 static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
5872 {
5873         wpas_p2p_clear_pending_action_tx(wpa_s);
5874         wpa_s->p2p_long_listen = 0;
5875         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5876         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
5877
5878         if (wpa_s->global->p2p)
5879                 p2p_stop_find(wpa_s->global->p2p);
5880
5881         if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
5882                 wpa_printf(MSG_DEBUG,
5883                            "P2P: Do not consider the scan results after stop_find");
5884                 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
5885         }
5886 }
5887
5888
5889 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
5890 {
5891         wpas_p2p_stop_find_oper(wpa_s);
5892         if (!wpa_s->global->pending_group_iface_for_p2ps)
5893                 wpas_p2p_remove_pending_group_interface(wpa_s);
5894 }
5895
5896
5897 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
5898 {
5899         struct wpa_supplicant *wpa_s = eloop_ctx;
5900         wpa_s->p2p_long_listen = 0;
5901 }
5902
5903
5904 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
5905 {
5906         int res;
5907
5908         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5909                 return -1;
5910
5911         wpa_supplicant_cancel_sched_scan(wpa_s);
5912         wpas_p2p_clear_pending_action_tx(wpa_s);
5913
5914         if (timeout == 0) {
5915                 /*
5916                  * This is a request for unlimited Listen state. However, at
5917                  * least for now, this is mapped to a Listen state for one
5918                  * hour.
5919                  */
5920                 timeout = 3600;
5921         }
5922         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5923         wpa_s->p2p_long_listen = 0;
5924
5925         /*
5926          * Stop previous find/listen operation to avoid trying to request a new
5927          * remain-on-channel operation while the driver is still running the
5928          * previous one.
5929          */
5930         if (wpa_s->global->p2p)
5931                 p2p_stop_find(wpa_s->global->p2p);
5932
5933         res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
5934         if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
5935                 wpa_s->p2p_long_listen = timeout * 1000;
5936                 eloop_register_timeout(timeout, 0,
5937                                        wpas_p2p_long_listen_timeout,
5938                                        wpa_s, NULL);
5939         }
5940
5941         return res;
5942 }
5943
5944
5945 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
5946                           u8 *buf, size_t len, int p2p_group)
5947 {
5948         struct wpabuf *p2p_ie;
5949         int ret;
5950
5951         if (wpa_s->global->p2p_disabled)
5952                 return -1;
5953         /*
5954          * Advertize mandatory cross connection capability even on
5955          * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
5956          */
5957         if (wpa_s->conf->p2p_disabled && p2p_group)
5958                 return -1;
5959         if (wpa_s->global->p2p == NULL)
5960                 return -1;
5961         if (bss == NULL)
5962                 return -1;
5963
5964         p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5965         ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
5966                                p2p_group, p2p_ie);
5967         wpabuf_free(p2p_ie);
5968
5969         return ret;
5970 }
5971
5972
5973 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
5974                           const u8 *dst, const u8 *bssid,
5975                           const u8 *ie, size_t ie_len, int ssi_signal)
5976 {
5977         if (wpa_s->global->p2p_disabled)
5978                 return 0;
5979         if (wpa_s->global->p2p == NULL)
5980                 return 0;
5981
5982         switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
5983                                  ie, ie_len)) {
5984         case P2P_PREQ_NOT_P2P:
5985                 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
5986                                  ssi_signal);
5987                 /* fall through */
5988         case P2P_PREQ_MALFORMED:
5989         case P2P_PREQ_NOT_LISTEN:
5990         case P2P_PREQ_NOT_PROCESSED:
5991         default: /* make gcc happy */
5992                 return 0;
5993         case P2P_PREQ_PROCESSED:
5994                 return 1;
5995         }
5996 }
5997
5998
5999 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6000                         const u8 *sa, const u8 *bssid,
6001                         u8 category, const u8 *data, size_t len, int freq)
6002 {
6003         if (wpa_s->global->p2p_disabled)
6004                 return;
6005         if (wpa_s->global->p2p == NULL)
6006                 return;
6007
6008         p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6009                       freq);
6010 }
6011
6012
6013 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6014 {
6015         if (wpa_s->global->p2p_disabled)
6016                 return;
6017         if (wpa_s->global->p2p == NULL)
6018                 return;
6019
6020         p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
6021 }
6022
6023
6024 static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6025 {
6026         p2p_group_deinit(wpa_s->p2p_group);
6027         wpa_s->p2p_group = NULL;
6028
6029         wpa_s->ap_configured_cb = NULL;
6030         wpa_s->ap_configured_cb_ctx = NULL;
6031         wpa_s->ap_configured_cb_data = NULL;
6032         wpa_s->connect_without_scan = NULL;
6033 }
6034
6035
6036 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6037 {
6038         wpa_s->p2p_long_listen = 0;
6039
6040         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6041                 return -1;
6042
6043         return p2p_reject(wpa_s->global->p2p, addr);
6044 }
6045
6046
6047 /* Invite to reinvoke a persistent group */
6048 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6049                     struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6050                     int ht40, int vht, int pref_freq)
6051 {
6052         enum p2p_invite_role role;
6053         u8 *bssid = NULL;
6054         int force_freq = 0;
6055         int res;
6056         int no_pref_freq_given = pref_freq == 0;
6057
6058         wpa_s->global->p2p_invite_group = NULL;
6059         if (peer_addr)
6060                 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6061         else
6062                 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6063
6064         wpa_s->p2p_persistent_go_freq = freq;
6065         wpa_s->p2p_go_ht40 = !!ht40;
6066         if (ssid->mode == WPAS_MODE_P2P_GO) {
6067                 role = P2P_INVITE_ROLE_GO;
6068                 if (peer_addr == NULL) {
6069                         wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6070                                    "address in invitation command");
6071                         return -1;
6072                 }
6073                 if (wpas_p2p_create_iface(wpa_s)) {
6074                         if (wpas_p2p_add_group_interface(wpa_s,
6075                                                          WPA_IF_P2P_GO) < 0) {
6076                                 wpa_printf(MSG_ERROR, "P2P: Failed to "
6077                                            "allocate a new interface for the "
6078                                            "group");
6079                                 return -1;
6080                         }
6081                         bssid = wpa_s->pending_interface_addr;
6082                 } else
6083                         bssid = wpa_s->own_addr;
6084         } else {
6085                 role = P2P_INVITE_ROLE_CLIENT;
6086                 peer_addr = ssid->bssid;
6087         }
6088         wpa_s->pending_invite_ssid_id = ssid->id;
6089
6090         res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6091                                    role == P2P_INVITE_ROLE_GO);
6092         if (res)
6093                 return res;
6094
6095         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6096                 return -1;
6097
6098         if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6099             no_pref_freq_given && pref_freq > 0 &&
6100             wpa_s->num_multichan_concurrent > 1 &&
6101             wpas_p2p_num_unused_channels(wpa_s) > 0) {
6102                 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6103                            pref_freq);
6104                 pref_freq = 0;
6105         }
6106
6107         /*
6108          * Stop any find/listen operations before invitation and possibly
6109          * connection establishment.
6110          */
6111         wpas_p2p_stop_find_oper(wpa_s);
6112
6113         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6114                           ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6115                           1, pref_freq, -1);
6116 }
6117
6118
6119 /* Invite to join an active group */
6120 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6121                           const u8 *peer_addr, const u8 *go_dev_addr)
6122 {
6123         struct wpa_global *global = wpa_s->global;
6124         enum p2p_invite_role role;
6125         u8 *bssid = NULL;
6126         struct wpa_ssid *ssid;
6127         int persistent;
6128         int freq = 0, force_freq = 0, pref_freq = 0;
6129         int res;
6130
6131         wpa_s->p2p_persistent_go_freq = 0;
6132         wpa_s->p2p_go_ht40 = 0;
6133         wpa_s->p2p_go_vht = 0;
6134
6135         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6136                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6137                         break;
6138         }
6139         if (wpa_s == NULL) {
6140                 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6141                 return -1;
6142         }
6143
6144         ssid = wpa_s->current_ssid;
6145         if (ssid == NULL) {
6146                 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6147                            "invitation");
6148                 return -1;
6149         }
6150
6151         wpa_s->global->p2p_invite_group = wpa_s;
6152         persistent = ssid->p2p_persistent_group &&
6153                 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6154                                         ssid->ssid, ssid->ssid_len);
6155
6156         if (ssid->mode == WPAS_MODE_P2P_GO) {
6157                 role = P2P_INVITE_ROLE_ACTIVE_GO;
6158                 bssid = wpa_s->own_addr;
6159                 if (go_dev_addr == NULL)
6160                         go_dev_addr = wpa_s->global->p2p_dev_addr;
6161                 freq = ssid->frequency;
6162         } else {
6163                 role = P2P_INVITE_ROLE_CLIENT;
6164                 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6165                         wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6166                                    "invite to current group");
6167                         return -1;
6168                 }
6169                 bssid = wpa_s->bssid;
6170                 if (go_dev_addr == NULL &&
6171                     !is_zero_ether_addr(wpa_s->go_dev_addr))
6172                         go_dev_addr = wpa_s->go_dev_addr;
6173                 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6174                         (int) wpa_s->assoc_freq;
6175         }
6176         wpa_s->parent->pending_invite_ssid_id = -1;
6177
6178         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6179                 return -1;
6180
6181         res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6182                                    role == P2P_INVITE_ROLE_ACTIVE_GO);
6183         if (res)
6184                 return res;
6185         wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6186
6187         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6188                           ssid->ssid, ssid->ssid_len, force_freq,
6189                           go_dev_addr, persistent, pref_freq, -1);
6190 }
6191
6192
6193 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6194 {
6195         struct wpa_ssid *ssid = wpa_s->current_ssid;
6196         u8 go_dev_addr[ETH_ALEN];
6197         int network_id = -1;
6198         int persistent;
6199         int freq;
6200         u8 ip[3 * 4];
6201         char ip_addr[100];
6202
6203         if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6204                 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6205                                      wpa_s->parent, NULL);
6206         }
6207
6208         if (!wpa_s->show_group_started || !ssid)
6209                 return;
6210
6211         wpa_s->show_group_started = 0;
6212
6213         os_memset(go_dev_addr, 0, ETH_ALEN);
6214         if (ssid->bssid_set)
6215                 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6216         persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6217                                                ssid->ssid_len);
6218         os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6219
6220         if (wpa_s->global->p2p_group_formation == wpa_s)
6221                 wpa_s->global->p2p_group_formation = NULL;
6222
6223         freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6224                 (int) wpa_s->assoc_freq;
6225
6226         ip_addr[0] = '\0';
6227         if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6228                 int res;
6229
6230                 res = os_snprintf(ip_addr, sizeof(ip_addr),
6231                                   " ip_addr=%u.%u.%u.%u "
6232                                   "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6233                                   ip[0], ip[1], ip[2], ip[3],
6234                                   ip[4], ip[5], ip[6], ip[7],
6235                                   ip[8], ip[9], ip[10], ip[11]);
6236                 if (os_snprintf_error(sizeof(ip_addr), res))
6237                         ip_addr[0] = '\0';
6238         }
6239
6240         wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6241                                ssid->passphrase == NULL && ssid->psk_set ?
6242                                ssid->psk : NULL,
6243                                ssid->passphrase, go_dev_addr, persistent,
6244                                ip_addr);
6245
6246         if (persistent)
6247                 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6248                                                              ssid, go_dev_addr);
6249         if (network_id < 0)
6250                 network_id = ssid->id;
6251         wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6252 }
6253
6254
6255 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6256                           u32 interval1, u32 duration2, u32 interval2)
6257 {
6258         int ret;
6259
6260         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6261                 return -1;
6262
6263         if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6264             wpa_s->current_ssid == NULL ||
6265             wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6266                 return -1;
6267
6268         ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6269                                wpa_s->own_addr, wpa_s->assoc_freq,
6270                                duration1, interval1, duration2, interval2);
6271         if (ret == 0)
6272                 wpa_s->waiting_presence_resp = 1;
6273
6274         return ret;
6275 }
6276
6277
6278 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6279                         unsigned int interval)
6280 {
6281         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6282                 return -1;
6283
6284         return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6285 }
6286
6287
6288 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6289 {
6290         if (wpa_s->current_ssid == NULL) {
6291                 /*
6292                  * current_ssid can be cleared when P2P client interface gets
6293                  * disconnected, so assume this interface was used as P2P
6294                  * client.
6295                  */
6296                 return 1;
6297         }
6298         return wpa_s->current_ssid->p2p_group &&
6299                 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6300 }
6301
6302
6303 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6304 {
6305         struct wpa_supplicant *wpa_s = eloop_ctx;
6306
6307         if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
6308                 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6309                            "disabled");
6310                 return;
6311         }
6312
6313         wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6314                    "group");
6315         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
6316 }
6317
6318
6319 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6320 {
6321         int timeout;
6322
6323         if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6324                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6325
6326         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6327                 return;
6328
6329         timeout = wpa_s->conf->p2p_group_idle;
6330         if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6331             (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6332             timeout = P2P_MAX_CLIENT_IDLE;
6333
6334         if (timeout == 0)
6335                 return;
6336
6337         if (timeout < 0) {
6338                 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6339                         timeout = 0; /* special client mode no-timeout */
6340                 else
6341                         return;
6342         }
6343
6344         if (wpa_s->p2p_in_provisioning) {
6345                 /*
6346                  * Use the normal group formation timeout during the
6347                  * provisioning phase to avoid terminating this process too
6348                  * early due to group idle timeout.
6349                  */
6350                 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6351                            "during provisioning");
6352                 return;
6353         }
6354
6355         if (wpa_s->show_group_started) {
6356                 /*
6357                  * Use the normal group formation timeout between the end of
6358                  * the provisioning phase and completion of 4-way handshake to
6359                  * avoid terminating this process too early due to group idle
6360                  * timeout.
6361                  */
6362                 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6363                            "while waiting for initial 4-way handshake to "
6364                            "complete");
6365                 return;
6366         }
6367
6368         wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
6369                    timeout);
6370         eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6371                                wpa_s, NULL);
6372 }
6373
6374
6375 /* Returns 1 if the interface was removed */
6376 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6377                           u16 reason_code, const u8 *ie, size_t ie_len,
6378                           int locally_generated)
6379 {
6380         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6381                 return 0;
6382
6383         if (!locally_generated)
6384                 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6385                                  ie_len);
6386
6387         if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6388             wpa_s->current_ssid &&
6389             wpa_s->current_ssid->p2p_group &&
6390             wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6391                 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6392                            "session is ending");
6393                 if (wpas_p2p_group_delete(wpa_s,
6394                                           P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6395                     > 0)
6396                         return 1;
6397         }
6398
6399         return 0;
6400 }
6401
6402
6403 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6404                              u16 reason_code, const u8 *ie, size_t ie_len,
6405                              int locally_generated)
6406 {
6407         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6408                 return;
6409
6410         if (!locally_generated)
6411                 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6412                                    ie_len);
6413 }
6414
6415
6416 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6417 {
6418         struct p2p_data *p2p = wpa_s->global->p2p;
6419
6420         if (p2p == NULL)
6421                 return;
6422
6423         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6424                 return;
6425
6426         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6427                 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6428
6429         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6430                 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
6431
6432         if (wpa_s->wps &&
6433             (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6434                 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6435
6436         if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6437                 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6438
6439         if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6440                 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6441                 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6442                 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6443                 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6444         }
6445
6446         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6447                 p2p_set_sec_dev_types(p2p,
6448                                       (void *) wpa_s->conf->sec_device_type,
6449                                       wpa_s->conf->num_sec_device_types);
6450
6451         if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6452                 int i;
6453                 p2p_remove_wps_vendor_extensions(p2p);
6454                 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6455                         if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6456                                 continue;
6457                         p2p_add_wps_vendor_extension(
6458                                 p2p, wpa_s->conf->wps_vendor_ext[i]);
6459                 }
6460         }
6461
6462         if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6463             wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6464                 char country[3];
6465                 country[0] = wpa_s->conf->country[0];
6466                 country[1] = wpa_s->conf->country[1];
6467                 country[2] = 0x04;
6468                 p2p_set_country(p2p, country);
6469         }
6470
6471         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6472                 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6473                                      wpa_s->conf->p2p_ssid_postfix ?
6474                                      os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6475                                      0);
6476         }
6477
6478         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6479                 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
6480
6481         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6482                 u8 reg_class, channel;
6483                 int ret;
6484                 unsigned int r;
6485                 u8 channel_forced;
6486
6487                 if (wpa_s->conf->p2p_listen_reg_class &&
6488                     wpa_s->conf->p2p_listen_channel) {
6489                         reg_class = wpa_s->conf->p2p_listen_reg_class;
6490                         channel = wpa_s->conf->p2p_listen_channel;
6491                         channel_forced = 1;
6492                 } else {
6493                         reg_class = 81;
6494                         /*
6495                          * Pick one of the social channels randomly as the
6496                          * listen channel.
6497                          */
6498                         if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6499                                 channel = 1;
6500                         else
6501                                 channel = 1 + (r % 3) * 5;
6502                         channel_forced = 0;
6503                 }
6504                 ret = p2p_set_listen_channel(p2p, reg_class, channel,
6505                                              channel_forced);
6506                 if (ret)
6507                         wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6508                                    "failed: %d", ret);
6509         }
6510         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6511                 u8 op_reg_class, op_channel, cfg_op_channel;
6512                 int ret = 0;
6513                 unsigned int r;
6514                 if (wpa_s->conf->p2p_oper_reg_class &&
6515                     wpa_s->conf->p2p_oper_channel) {
6516                         op_reg_class = wpa_s->conf->p2p_oper_reg_class;
6517                         op_channel = wpa_s->conf->p2p_oper_channel;
6518                         cfg_op_channel = 1;
6519                 } else {
6520                         op_reg_class = 81;
6521                         /*
6522                          * Use random operation channel from (1, 6, 11)
6523                          *if no other preference is indicated.
6524                          */
6525                         if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6526                                 op_channel = 1;
6527                         else
6528                                 op_channel = 1 + (r % 3) * 5;
6529                         cfg_op_channel = 0;
6530                 }
6531                 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
6532                                            cfg_op_channel);
6533                 if (ret)
6534                         wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
6535                                    "failed: %d", ret);
6536         }
6537
6538         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
6539                 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
6540                                       wpa_s->conf->p2p_pref_chan) < 0) {
6541                         wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
6542                                    "update failed");
6543                 }
6544
6545                 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
6546                         wpa_printf(MSG_ERROR, "P2P: No GO channel list "
6547                                    "update failed");
6548                 }
6549         }
6550
6551         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
6552                 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
6553 }
6554
6555
6556 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
6557                      int duration)
6558 {
6559         if (!wpa_s->ap_iface)
6560                 return -1;
6561         return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
6562                                    duration);
6563 }
6564
6565
6566 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
6567 {
6568         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6569                 return -1;
6570
6571         wpa_s->global->cross_connection = enabled;
6572         p2p_set_cross_connect(wpa_s->global->p2p, enabled);
6573
6574         if (!enabled) {
6575                 struct wpa_supplicant *iface;
6576
6577                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
6578                 {
6579                         if (iface->cross_connect_enabled == 0)
6580                                 continue;
6581
6582                         iface->cross_connect_enabled = 0;
6583                         iface->cross_connect_in_use = 0;
6584                         wpa_msg_global(iface->parent, MSG_INFO,
6585                                        P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6586                                        iface->ifname,
6587                                        iface->cross_connect_uplink);
6588                 }
6589         }
6590
6591         return 0;
6592 }
6593
6594
6595 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
6596 {
6597         struct wpa_supplicant *iface;
6598
6599         if (!uplink->global->cross_connection)
6600                 return;
6601
6602         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6603                 if (!iface->cross_connect_enabled)
6604                         continue;
6605                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6606                     0)
6607                         continue;
6608                 if (iface->ap_iface == NULL)
6609                         continue;
6610                 if (iface->cross_connect_in_use)
6611                         continue;
6612
6613                 iface->cross_connect_in_use = 1;
6614                 wpa_msg_global(iface->parent, MSG_INFO,
6615                                P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6616                                iface->ifname, iface->cross_connect_uplink);
6617         }
6618 }
6619
6620
6621 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
6622 {
6623         struct wpa_supplicant *iface;
6624
6625         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6626                 if (!iface->cross_connect_enabled)
6627                         continue;
6628                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6629                     0)
6630                         continue;
6631                 if (!iface->cross_connect_in_use)
6632                         continue;
6633
6634                 wpa_msg_global(iface->parent, MSG_INFO,
6635                                P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6636                                iface->ifname, iface->cross_connect_uplink);
6637                 iface->cross_connect_in_use = 0;
6638         }
6639 }
6640
6641
6642 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
6643 {
6644         if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
6645             wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
6646             wpa_s->cross_connect_disallowed)
6647                 wpas_p2p_disable_cross_connect(wpa_s);
6648         else
6649                 wpas_p2p_enable_cross_connect(wpa_s);
6650         if (!wpa_s->ap_iface &&
6651             eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6652                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6653 }
6654
6655
6656 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
6657 {
6658         wpas_p2p_disable_cross_connect(wpa_s);
6659         if (!wpa_s->ap_iface &&
6660             !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
6661                                          wpa_s, NULL))
6662                 wpas_p2p_set_group_idle_timeout(wpa_s);
6663 }
6664
6665
6666 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
6667 {
6668         struct wpa_supplicant *iface;
6669
6670         if (!wpa_s->global->cross_connection)
6671                 return;
6672
6673         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
6674                 if (iface == wpa_s)
6675                         continue;
6676                 if (iface->drv_flags &
6677                     WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
6678                         continue;
6679                 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
6680                     iface != wpa_s->parent)
6681                         continue;
6682
6683                 wpa_s->cross_connect_enabled = 1;
6684                 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
6685                            sizeof(wpa_s->cross_connect_uplink));
6686                 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
6687                            "%s to %s whenever uplink is available",
6688                            wpa_s->ifname, wpa_s->cross_connect_uplink);
6689
6690                 if (iface->ap_iface || iface->current_ssid == NULL ||
6691                     iface->current_ssid->mode != WPAS_MODE_INFRA ||
6692                     iface->cross_connect_disallowed ||
6693                     iface->wpa_state != WPA_COMPLETED)
6694                         break;
6695
6696                 wpa_s->cross_connect_in_use = 1;
6697                 wpa_msg_global(wpa_s->parent, MSG_INFO,
6698                                P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6699                                wpa_s->ifname, wpa_s->cross_connect_uplink);
6700                 break;
6701         }
6702 }
6703
6704
6705 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
6706 {
6707         if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
6708             !wpa_s->p2p_in_provisioning)
6709                 return 0; /* not P2P client operation */
6710
6711         wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
6712                    "session overlap");
6713         if (wpa_s != wpa_s->parent)
6714                 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
6715         wpas_p2p_group_formation_failed(wpa_s);
6716         return 1;
6717 }
6718
6719
6720 void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
6721 {
6722         struct wpa_supplicant *wpa_s = eloop_ctx;
6723         wpas_p2p_notif_pbc_overlap(wpa_s);
6724 }
6725
6726
6727 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
6728 {
6729         struct p2p_channels chan, cli_chan;
6730         struct wpa_supplicant *ifs;
6731
6732         if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
6733                 return;
6734
6735         os_memset(&chan, 0, sizeof(chan));
6736         os_memset(&cli_chan, 0, sizeof(cli_chan));
6737         if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
6738                 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
6739                            "channel list");
6740                 return;
6741         }
6742
6743         p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
6744
6745         for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
6746                 int freq;
6747                 if (!ifs->current_ssid ||
6748                     !ifs->current_ssid->p2p_group ||
6749                     (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
6750                      ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
6751                                 continue;
6752                 freq = ifs->current_ssid->frequency;
6753                 if (freq_included(&chan, freq)) {
6754                         wpa_dbg(ifs, MSG_DEBUG,
6755                                 "P2P GO operating frequency %d MHz in valid range",
6756                                 freq);
6757                         continue;
6758                 }
6759
6760                 wpa_dbg(ifs, MSG_DEBUG,
6761                         "P2P GO operating in invalid frequency %d MHz", freq);
6762                 /* TODO: Consider using CSA or removing the group within
6763                  * wpa_supplicant */
6764                 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
6765         }
6766 }
6767
6768
6769 static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
6770                                      struct wpa_scan_results *scan_res)
6771 {
6772         wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6773 }
6774
6775
6776 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
6777 {
6778         struct wpa_global *global = wpa_s->global;
6779         int found = 0;
6780         const u8 *peer;
6781
6782         if (global->p2p == NULL)
6783                 return -1;
6784
6785         wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
6786
6787         if (wpa_s->pending_interface_name[0] &&
6788             !is_zero_ether_addr(wpa_s->pending_interface_addr))
6789                 found = 1;
6790
6791         peer = p2p_get_go_neg_peer(global->p2p);
6792         if (peer) {
6793                 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
6794                            MACSTR, MAC2STR(peer));
6795                 p2p_unauthorize(global->p2p, peer);
6796                 found = 1;
6797         }
6798
6799         if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
6800                 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
6801                 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
6802                 found = 1;
6803         }
6804
6805         if (wpa_s->pending_pd_before_join) {
6806                 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
6807                 wpa_s->pending_pd_before_join = 0;
6808                 found = 1;
6809         }
6810
6811         wpas_p2p_stop_find(wpa_s);
6812
6813         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6814                 if (wpa_s == global->p2p_group_formation &&
6815                     (wpa_s->p2p_in_provisioning ||
6816                      wpa_s->parent->pending_interface_type ==
6817                      WPA_IF_P2P_CLIENT)) {
6818                         wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
6819                                    "formation found - cancelling",
6820                                    wpa_s->ifname);
6821                         found = 1;
6822                         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6823                                              wpa_s->parent, NULL);
6824                         if (wpa_s->p2p_in_provisioning) {
6825                                 wpas_group_formation_completed(wpa_s, 0);
6826                                 break;
6827                         }
6828                         wpas_p2p_group_delete(wpa_s,
6829                                               P2P_GROUP_REMOVAL_REQUESTED);
6830                         break;
6831                 } else if (wpa_s->p2p_in_invitation) {
6832                         wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
6833                                    wpa_s->ifname);
6834                         found = 1;
6835                         wpas_p2p_group_formation_failed(wpa_s);
6836                 }
6837         }
6838
6839         if (!found) {
6840                 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
6841                 return -1;
6842         }
6843
6844         return 0;
6845 }
6846
6847
6848 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
6849 {
6850         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6851                 return;
6852
6853         wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
6854                    "being available anymore");
6855         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
6856 }
6857
6858
6859 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
6860                                    int freq_24, int freq_5, int freq_overall)
6861 {
6862         struct p2p_data *p2p = wpa_s->global->p2p;
6863         if (p2p == NULL)
6864                 return;
6865         p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
6866 }
6867
6868
6869 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
6870 {
6871         u8 peer[ETH_ALEN];
6872         struct p2p_data *p2p = wpa_s->global->p2p;
6873
6874         if (p2p == NULL)
6875                 return -1;
6876
6877         if (hwaddr_aton(addr, peer))
6878                 return -1;
6879
6880         return p2p_unauthorize(p2p, peer);
6881 }
6882
6883
6884 /**
6885  * wpas_p2p_disconnect - Disconnect from a P2P Group
6886  * @wpa_s: Pointer to wpa_supplicant data
6887  * Returns: 0 on success, -1 on failure
6888  *
6889  * This can be used to disconnect from a group in which the local end is a P2P
6890  * Client or to end a P2P Group in case the local end is the Group Owner. If a
6891  * virtual network interface was created for this group, that interface will be
6892  * removed. Otherwise, only the configured P2P group network will be removed
6893  * from the interface.
6894  */
6895 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
6896 {
6897
6898         if (wpa_s == NULL)
6899                 return -1;
6900
6901         return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
6902                 -1 : 0;
6903 }
6904
6905
6906 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
6907 {
6908         int ret;
6909
6910         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6911                 return 0;
6912
6913         ret = p2p_in_progress(wpa_s->global->p2p);
6914         if (ret == 0) {
6915                 /*
6916                  * Check whether there is an ongoing WPS provisioning step (or
6917                  * other parts of group formation) on another interface since
6918                  * p2p_in_progress() does not report this to avoid issues for
6919                  * scans during such provisioning step.
6920                  */
6921                 if (wpa_s->global->p2p_group_formation &&
6922                     wpa_s->global->p2p_group_formation != wpa_s) {
6923                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
6924                                 "in group formation",
6925                                 wpa_s->global->p2p_group_formation->ifname);
6926                         ret = 1;
6927                 }
6928         }
6929
6930         if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
6931                 struct os_reltime now;
6932                 os_get_reltime(&now);
6933                 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
6934                                        P2P_MAX_INITIAL_CONN_WAIT_GO)) {
6935                         /* Wait for the first client has expired */
6936                         wpa_s->global->p2p_go_wait_client.sec = 0;
6937                 } else {
6938                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
6939                         ret = 1;
6940                 }
6941         }
6942
6943         return ret;
6944 }
6945
6946
6947 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
6948                               struct wpa_ssid *ssid)
6949 {
6950         if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
6951             eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6952                                  wpa_s->parent, NULL) > 0) {
6953                 /**
6954                  * Remove the network by scheduling the group formation
6955                  * timeout to happen immediately. The teardown code
6956                  * needs to be scheduled to run asynch later so that we
6957                  * don't delete data from under ourselves unexpectedly.
6958                  * Calling wpas_p2p_group_formation_timeout directly
6959                  * causes a series of crashes in WPS failure scenarios.
6960                  */
6961                 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
6962                            "P2P group network getting removed");
6963                 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
6964                                        wpa_s->parent, NULL);
6965         }
6966 }
6967
6968
6969 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
6970                                           const u8 *addr, const u8 *ssid,
6971                                           size_t ssid_len)
6972 {
6973         struct wpa_ssid *s;
6974         size_t i;
6975
6976         for (s = wpa_s->conf->ssid; s; s = s->next) {
6977                 if (s->disabled != 2)
6978                         continue;
6979                 if (ssid &&
6980                     (ssid_len != s->ssid_len ||
6981                      os_memcmp(ssid, s->ssid, ssid_len) != 0))
6982                         continue;
6983                 if (addr == NULL) {
6984                         if (s->mode == WPAS_MODE_P2P_GO)
6985                                 return s;
6986                         continue;
6987                 }
6988                 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
6989                         return s; /* peer is GO in the persistent group */
6990                 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
6991                         continue;
6992                 for (i = 0; i < s->num_p2p_clients; i++) {
6993                         if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
6994                                       addr, ETH_ALEN) == 0)
6995                                 return s; /* peer is P2P client in persistent
6996                                            * group */
6997                 }
6998         }
6999
7000         return NULL;
7001 }
7002
7003
7004 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7005                                        const u8 *addr)
7006 {
7007         if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7008                                  wpa_s->parent, NULL) > 0) {
7009                 /*
7010                  * This can happen if WPS provisioning step is not terminated
7011                  * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7012                  * peer was able to connect, there is no need to time out group
7013                  * formation after this, though. In addition, this is used with
7014                  * the initial connection wait on the GO as a separate formation
7015                  * timeout and as such, expected to be hit after the initial WPS
7016                  * provisioning step.
7017                  */
7018                 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7019
7020                 if (!wpa_s->p2p_go_group_formation_completed &&
7021                     !wpa_s->group_formation_reported) {
7022                         /*
7023                          * GO has not yet notified group formation success since
7024                          * the WPS step was not completed cleanly. Do that
7025                          * notification now since the P2P Client was able to
7026                          * connect and as such, must have received the
7027                          * credential from the WPS step.
7028                          */
7029                         if (wpa_s->global->p2p)
7030                                 p2p_wps_success_cb(wpa_s->global->p2p, addr);
7031                         wpas_group_formation_completed(wpa_s, 1);
7032                 }
7033         }
7034         if (!wpa_s->p2p_go_group_formation_completed) {
7035                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7036                 wpa_s->p2p_go_group_formation_completed = 1;
7037                 wpa_s->global->p2p_group_formation = NULL;
7038                 wpa_s->p2p_in_provisioning = 0;
7039                 wpa_s->p2p_in_invitation = 0;
7040         }
7041         wpa_s->global->p2p_go_wait_client.sec = 0;
7042         if (addr == NULL)
7043                 return;
7044         wpas_p2p_add_persistent_group_client(wpa_s, addr);
7045 }
7046
7047
7048 static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7049                                        int group_added)
7050 {
7051         struct wpa_supplicant *group = wpa_s;
7052         int ret = 0;
7053
7054         if (wpa_s->global->p2p_group_formation)
7055                 group = wpa_s->global->p2p_group_formation;
7056         wpa_s = wpa_s->parent;
7057         offchannel_send_action_done(wpa_s);
7058         if (group_added)
7059                 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7060         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7061         wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7062                          wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7063                          0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7064                          wpa_s->p2p_persistent_id,
7065                          wpa_s->p2p_pd_before_go_neg,
7066                          wpa_s->p2p_go_ht40,
7067                          wpa_s->p2p_go_vht);
7068         return ret;
7069 }
7070
7071
7072 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7073 {
7074         int res;
7075
7076         if (!wpa_s->p2p_fallback_to_go_neg ||
7077             wpa_s->p2p_in_provisioning <= 5)
7078                 return 0;
7079
7080         if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7081                 return 0; /* peer operating as a GO */
7082
7083         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7084                 "fallback to GO Negotiation");
7085         wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7086                        "reason=GO-not-found");
7087         res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7088
7089         return res == 1 ? 2 : 1;
7090 }
7091
7092
7093 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7094 {
7095         struct wpa_supplicant *ifs;
7096
7097         if (wpa_s->wpa_state > WPA_SCANNING) {
7098                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7099                         "concurrent operation",
7100                         wpa_s->conf->p2p_search_delay);
7101                 return wpa_s->conf->p2p_search_delay;
7102         }
7103
7104         dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7105                          radio_list) {
7106                 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7107                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7108                                 "delay due to concurrent operation on "
7109                                 "interface %s",
7110                                 wpa_s->conf->p2p_search_delay,
7111                                 ifs->ifname);
7112                         return wpa_s->conf->p2p_search_delay;
7113                 }
7114         }
7115
7116         return 0;
7117 }
7118
7119
7120 static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7121                                      struct wpa_ssid *s, const u8 *addr,
7122                                      int iface_addr)
7123 {
7124         struct psk_list_entry *psk, *tmp;
7125         int changed = 0;
7126
7127         dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7128                               list) {
7129                 if ((iface_addr && !psk->p2p &&
7130                      os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7131                     (!iface_addr && psk->p2p &&
7132                      os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7133                         wpa_dbg(wpa_s, MSG_DEBUG,
7134                                 "P2P: Remove persistent group PSK list entry for "
7135                                 MACSTR " p2p=%u",
7136                                 MAC2STR(psk->addr), psk->p2p);
7137                         dl_list_del(&psk->list);
7138                         os_free(psk);
7139                         changed++;
7140                 }
7141         }
7142
7143         return changed;
7144 }
7145
7146
7147 void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7148                          const u8 *p2p_dev_addr,
7149                          const u8 *psk, size_t psk_len)
7150 {
7151         struct wpa_ssid *ssid = wpa_s->current_ssid;
7152         struct wpa_ssid *persistent;
7153         struct psk_list_entry *p, *last;
7154
7155         if (psk_len != sizeof(p->psk))
7156                 return;
7157
7158         if (p2p_dev_addr) {
7159                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7160                         " p2p_dev_addr=" MACSTR,
7161                         MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7162                 if (is_zero_ether_addr(p2p_dev_addr))
7163                         p2p_dev_addr = NULL;
7164         } else {
7165                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7166                         MAC2STR(mac_addr));
7167         }
7168
7169         if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7170                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7171                 /* To be added to persistent group once created */
7172                 if (wpa_s->global->add_psk == NULL) {
7173                         wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7174                         if (wpa_s->global->add_psk == NULL)
7175                                 return;
7176                 }
7177                 p = wpa_s->global->add_psk;
7178                 if (p2p_dev_addr) {
7179                         p->p2p = 1;
7180                         os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7181                 } else {
7182                         p->p2p = 0;
7183                         os_memcpy(p->addr, mac_addr, ETH_ALEN);
7184                 }
7185                 os_memcpy(p->psk, psk, psk_len);
7186                 return;
7187         }
7188
7189         if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7190                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7191                 return;
7192         }
7193
7194         persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7195                                              ssid->ssid_len);
7196         if (!persistent) {
7197                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7198                 return;
7199         }
7200
7201         p = os_zalloc(sizeof(*p));
7202         if (p == NULL)
7203                 return;
7204         if (p2p_dev_addr) {
7205                 p->p2p = 1;
7206                 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7207         } else {
7208                 p->p2p = 0;
7209                 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7210         }
7211         os_memcpy(p->psk, psk, psk_len);
7212
7213         if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7214             (last = dl_list_last(&persistent->psk_list,
7215                                  struct psk_list_entry, list))) {
7216                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7217                         MACSTR " (p2p=%u) to make room for a new one",
7218                         MAC2STR(last->addr), last->p2p);
7219                 dl_list_del(&last->list);
7220                 os_free(last);
7221         }
7222
7223         wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7224                                   p2p_dev_addr ? p2p_dev_addr : mac_addr,
7225                                   p2p_dev_addr == NULL);
7226         if (p2p_dev_addr) {
7227                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7228                         MACSTR, MAC2STR(p2p_dev_addr));
7229         } else {
7230                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7231                         MAC2STR(mac_addr));
7232         }
7233         dl_list_add(&persistent->psk_list, &p->list);
7234
7235         if (wpa_s->parent->conf->update_config &&
7236             wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7237                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7238 }
7239
7240
7241 static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7242                                 struct wpa_ssid *s, const u8 *addr,
7243                                 int iface_addr)
7244 {
7245         int res;
7246
7247         res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7248         if (res > 0 && wpa_s->conf->update_config &&
7249             wpa_config_write(wpa_s->confname, wpa_s->conf))
7250                 wpa_dbg(wpa_s, MSG_DEBUG,
7251                         "P2P: Failed to update configuration");
7252 }
7253
7254
7255 static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7256                                       const u8 *peer, int iface_addr)
7257 {
7258         struct hostapd_data *hapd;
7259         struct hostapd_wpa_psk *psk, *prev, *rem;
7260         struct sta_info *sta;
7261
7262         if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7263             wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7264                 return;
7265
7266         /* Remove per-station PSK entry */
7267         hapd = wpa_s->ap_iface->bss[0];
7268         prev = NULL;
7269         psk = hapd->conf->ssid.wpa_psk;
7270         while (psk) {
7271                 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7272                     (!iface_addr &&
7273                      os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7274                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7275                                 MACSTR " iface_addr=%d",
7276                                 MAC2STR(peer), iface_addr);
7277                         if (prev)
7278                                 prev->next = psk->next;
7279                         else
7280                                 hapd->conf->ssid.wpa_psk = psk->next;
7281                         rem = psk;
7282                         psk = psk->next;
7283                         os_free(rem);
7284                 } else {
7285                         prev = psk;
7286                         psk = psk->next;
7287                 }
7288         }
7289
7290         /* Disconnect from group */
7291         if (iface_addr)
7292                 sta = ap_get_sta(hapd, peer);
7293         else
7294                 sta = ap_get_sta_p2p(hapd, peer);
7295         if (sta) {
7296                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7297                         " (iface_addr=%d) from group",
7298                         MAC2STR(peer), iface_addr);
7299                 hostapd_drv_sta_deauth(hapd, sta->addr,
7300                                        WLAN_REASON_DEAUTH_LEAVING);
7301                 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7302         }
7303 }
7304
7305
7306 void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7307                             int iface_addr)
7308 {
7309         struct wpa_ssid *s;
7310         struct wpa_supplicant *w;
7311
7312         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7313
7314         /* Remove from any persistent group */
7315         for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
7316                 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7317                         continue;
7318                 if (!iface_addr)
7319                         wpas_remove_persistent_peer(wpa_s, s, peer, 0);
7320                 wpas_p2p_remove_psk(wpa_s->parent, s, peer, iface_addr);
7321         }
7322
7323         /* Remove from any operating group */
7324         for (w = wpa_s->global->ifaces; w; w = w->next)
7325                 wpas_p2p_remove_client_go(w, peer, iface_addr);
7326 }
7327
7328
7329 static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7330 {
7331         struct wpa_supplicant *wpa_s = eloop_ctx;
7332         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7333 }
7334
7335
7336 static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7337 {
7338         struct wpa_supplicant *wpa_s = eloop_ctx;
7339
7340         wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7341         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7342 }
7343
7344
7345 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7346                                         struct wpa_ssid *ssid)
7347 {
7348         struct wpa_supplicant *iface;
7349
7350         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7351                 if (!iface->current_ssid ||
7352                     iface->current_ssid->frequency == freq ||
7353                     (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7354                      !iface->current_ssid->p2p_group))
7355                         continue;
7356
7357                 /* Remove the connection with least priority */
7358                 if (!wpas_is_p2p_prioritized(iface)) {
7359                         /* STA connection has priority over existing
7360                          * P2P connection, so remove the interface. */
7361                         wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7362                         eloop_register_timeout(0, 0,
7363                                                wpas_p2p_group_freq_conflict,
7364                                                iface, NULL);
7365                         /* If connection in progress is P2P connection, do not
7366                          * proceed for the connection. */
7367                         if (wpa_s == iface)
7368                                 return -1;
7369                         else
7370                                 return 0;
7371                 } else {
7372                         /* P2P connection has priority, disable the STA network
7373                          */
7374                         wpa_supplicant_disable_network(wpa_s->global->ifaces,
7375                                                        ssid);
7376                         wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7377                                 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7378                         os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7379                                   ETH_ALEN);
7380                         /* If P2P connection is in progress, continue
7381                          * connecting...*/
7382                         if (wpa_s == iface)
7383                                 return 0;
7384                         else
7385                                 return -1;
7386                 }
7387         }
7388
7389         return 0;
7390 }
7391
7392
7393 int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7394 {
7395         struct wpa_ssid *ssid = wpa_s->current_ssid;
7396
7397         if (ssid == NULL || !ssid->p2p_group)
7398                 return 0;
7399
7400         if (wpa_s->p2p_last_4way_hs_fail &&
7401             wpa_s->p2p_last_4way_hs_fail == ssid) {
7402                 u8 go_dev_addr[ETH_ALEN];
7403                 struct wpa_ssid *persistent;
7404
7405                 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7406                                               ssid->ssid,
7407                                               ssid->ssid_len) <= 0) {
7408                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7409                         goto disconnect;
7410                 }
7411
7412                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7413                         MACSTR, MAC2STR(go_dev_addr));
7414                 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7415                                                      ssid->ssid,
7416                                                      ssid->ssid_len);
7417                 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7418                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7419                         goto disconnect;
7420                 }
7421                 wpa_msg_global(wpa_s->parent, MSG_INFO,
7422                                P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7423                                persistent->id);
7424         disconnect:
7425                 wpa_s->p2p_last_4way_hs_fail = NULL;
7426                 /*
7427                  * Remove the group from a timeout to avoid issues with caller
7428                  * continuing to use the interface if this is on a P2P group
7429                  * interface.
7430                  */
7431                 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7432                                        wpa_s, NULL);
7433                 return 1;
7434         }
7435
7436         wpa_s->p2p_last_4way_hs_fail = ssid;
7437         return 0;
7438 }
7439
7440
7441 #ifdef CONFIG_WPS_NFC
7442
7443 static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7444                                              struct wpabuf *p2p)
7445 {
7446         struct wpabuf *ret;
7447         size_t wsc_len;
7448
7449         if (p2p == NULL) {
7450                 wpabuf_free(wsc);
7451                 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7452                 return NULL;
7453         }
7454
7455         wsc_len = wsc ? wpabuf_len(wsc) : 0;
7456         ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
7457         if (ret == NULL) {
7458                 wpabuf_free(wsc);
7459                 wpabuf_free(p2p);
7460                 return NULL;
7461         }
7462
7463         wpabuf_put_be16(ret, wsc_len);
7464         if (wsc)
7465                 wpabuf_put_buf(ret, wsc);
7466         wpabuf_put_be16(ret, wpabuf_len(p2p));
7467         wpabuf_put_buf(ret, p2p);
7468
7469         wpabuf_free(wsc);
7470         wpabuf_free(p2p);
7471         wpa_hexdump_buf(MSG_DEBUG,
7472                         "P2P: Generated NFC connection handover message", ret);
7473
7474         if (ndef && ret) {
7475                 struct wpabuf *tmp;
7476                 tmp = ndef_build_p2p(ret);
7477                 wpabuf_free(ret);
7478                 if (tmp == NULL) {
7479                         wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7480                         return NULL;
7481                 }
7482                 ret = tmp;
7483         }
7484
7485         return ret;
7486 }
7487
7488
7489 static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7490                              struct wpa_ssid **ssid, u8 *go_dev_addr)
7491 {
7492         struct wpa_supplicant *iface;
7493
7494         if (go_dev_addr)
7495                 os_memset(go_dev_addr, 0, ETH_ALEN);
7496         if (ssid)
7497                 *ssid = NULL;
7498         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7499                 if (iface->wpa_state < WPA_ASSOCIATING ||
7500                     iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7501                     !iface->current_ssid->p2p_group ||
7502                     iface->current_ssid->mode != WPAS_MODE_INFRA)
7503                         continue;
7504                 if (ssid)
7505                         *ssid = iface->current_ssid;
7506                 if (go_dev_addr)
7507                         os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
7508                 return iface->assoc_freq;
7509         }
7510         return 0;
7511 }
7512
7513
7514 struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
7515                                           int ndef)
7516 {
7517         struct wpabuf *wsc, *p2p;
7518         struct wpa_ssid *ssid;
7519         u8 go_dev_addr[ETH_ALEN];
7520         int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7521
7522         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
7523                 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
7524                 return NULL;
7525         }
7526
7527         if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7528             wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7529                            &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
7530                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
7531                 return NULL;
7532         }
7533
7534         if (cli_freq == 0) {
7535                 wsc = wps_build_nfc_handover_req_p2p(
7536                         wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
7537         } else
7538                 wsc = NULL;
7539         p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
7540                                          go_dev_addr, ssid ? ssid->ssid : NULL,
7541                                          ssid ? ssid->ssid_len : 0);
7542
7543         return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7544 }
7545
7546
7547 struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
7548                                           int ndef, int tag)
7549 {
7550         struct wpabuf *wsc, *p2p;
7551         struct wpa_ssid *ssid;
7552         u8 go_dev_addr[ETH_ALEN];
7553         int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7554
7555         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7556                 return NULL;
7557
7558         if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7559             wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7560                            &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7561                 return NULL;
7562
7563         if (cli_freq == 0) {
7564                 wsc = wps_build_nfc_handover_sel_p2p(
7565                         wpa_s->parent->wps,
7566                         tag ? wpa_s->conf->wps_nfc_dev_pw_id :
7567                         DEV_PW_NFC_CONNECTION_HANDOVER,
7568                         wpa_s->conf->wps_nfc_dh_pubkey,
7569                         tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
7570         } else
7571                 wsc = NULL;
7572         p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
7573                                          go_dev_addr, ssid ? ssid->ssid : NULL,
7574                                          ssid ? ssid->ssid_len : 0);
7575
7576         return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7577 }
7578
7579
7580 static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
7581                                    struct p2p_nfc_params *params)
7582 {
7583         wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
7584                    "connection handover (freq=%d)",
7585                    params->go_freq);
7586
7587         if (params->go_freq && params->go_ssid_len) {
7588                 wpa_s->p2p_wps_method = WPS_NFC;
7589                 wpa_s->pending_join_wps_method = WPS_NFC;
7590                 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
7591                 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
7592                           ETH_ALEN);
7593                 return wpas_p2p_join_start(wpa_s, params->go_freq,
7594                                            params->go_ssid,
7595                                            params->go_ssid_len);
7596         }
7597
7598         return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7599                                 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
7600                                 params->go_freq, -1, 0, 1, 1);
7601 }
7602
7603
7604 static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
7605                                   struct p2p_nfc_params *params, int tag)
7606 {
7607         int res, persistent;
7608         struct wpa_ssid *ssid;
7609
7610         wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
7611                    "connection handover");
7612         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7613                 ssid = wpa_s->current_ssid;
7614                 if (ssid == NULL)
7615                         continue;
7616                 if (ssid->mode != WPAS_MODE_P2P_GO)
7617                         continue;
7618                 if (wpa_s->ap_iface == NULL)
7619                         continue;
7620                 break;
7621         }
7622         if (wpa_s == NULL) {
7623                 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
7624                 return -1;
7625         }
7626
7627         if (wpa_s->parent->p2p_oob_dev_pw_id !=
7628             DEV_PW_NFC_CONNECTION_HANDOVER &&
7629             !wpa_s->parent->p2p_oob_dev_pw) {
7630                 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
7631                 return -1;
7632         }
7633         res = wpas_ap_wps_add_nfc_pw(
7634                 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
7635                 wpa_s->parent->p2p_oob_dev_pw,
7636                 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
7637                 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
7638         if (res)
7639                 return res;
7640
7641         if (!tag) {
7642                 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
7643                 return 0;
7644         }
7645
7646         if (!params->peer ||
7647             !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
7648                 return 0;
7649
7650         wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
7651                    " to join", MAC2STR(params->peer->p2p_device_addr));
7652
7653         wpa_s->global->p2p_invite_group = wpa_s;
7654         persistent = ssid->p2p_persistent_group &&
7655                 wpas_p2p_get_persistent(wpa_s->parent,
7656                                         params->peer->p2p_device_addr,
7657                                         ssid->ssid, ssid->ssid_len);
7658         wpa_s->parent->pending_invite_ssid_id = -1;
7659
7660         return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
7661                           P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
7662                           ssid->ssid, ssid->ssid_len, ssid->frequency,
7663                           wpa_s->global->p2p_dev_addr, persistent, 0,
7664                           wpa_s->parent->p2p_oob_dev_pw_id);
7665 }
7666
7667
7668 static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
7669                                     struct p2p_nfc_params *params,
7670                                     int forced_freq)
7671 {
7672         wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
7673                    "connection handover");
7674         return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7675                                 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
7676                                 forced_freq, -1, 0, 1, 1);
7677 }
7678
7679
7680 static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
7681                                     struct p2p_nfc_params *params,
7682                                     int forced_freq)
7683 {
7684         int res;
7685
7686         wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
7687                    "connection handover");
7688         res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7689                                WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
7690                                forced_freq, -1, 0, 1, 1);
7691         if (res)
7692                 return res;
7693
7694         res = wpas_p2p_listen(wpa_s, 60);
7695         if (res) {
7696                 p2p_unauthorize(wpa_s->global->p2p,
7697                                 params->peer->p2p_device_addr);
7698         }
7699
7700         return res;
7701 }
7702
7703
7704 static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
7705                                             const struct wpabuf *data,
7706                                             int sel, int tag, int forced_freq)
7707 {
7708         const u8 *pos, *end;
7709         u16 len, id;
7710         struct p2p_nfc_params params;
7711         int res;
7712
7713         os_memset(&params, 0, sizeof(params));
7714         params.sel = sel;
7715
7716         wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
7717
7718         pos = wpabuf_head(data);
7719         end = pos + wpabuf_len(data);
7720
7721         if (end - pos < 2) {
7722                 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
7723                            "attributes");
7724                 return -1;
7725         }
7726         len = WPA_GET_BE16(pos);
7727         pos += 2;
7728         if (len > end - pos) {
7729                 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
7730                            "attributes");
7731                 return -1;
7732         }
7733         params.wsc_attr = pos;
7734         params.wsc_len = len;
7735         pos += len;
7736
7737         if (end - pos < 2) {
7738                 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
7739                            "attributes");
7740                 return -1;
7741         }
7742         len = WPA_GET_BE16(pos);
7743         pos += 2;
7744         if (len > end - pos) {
7745                 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
7746                            "attributes");
7747                 return -1;
7748         }
7749         params.p2p_attr = pos;
7750         params.p2p_len = len;
7751         pos += len;
7752
7753         wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
7754                     params.wsc_attr, params.wsc_len);
7755         wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
7756                     params.p2p_attr, params.p2p_len);
7757         if (pos < end) {
7758                 wpa_hexdump(MSG_DEBUG,
7759                             "P2P: Ignored extra data after P2P attributes",
7760                             pos, end - pos);
7761         }
7762
7763         res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, &params);
7764         if (res)
7765                 return res;
7766
7767         if (params.next_step == NO_ACTION)
7768                 return 0;
7769
7770         if (params.next_step == BOTH_GO) {
7771                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
7772                         MAC2STR(params.peer->p2p_device_addr));
7773                 return 0;
7774         }
7775
7776         if (params.next_step == PEER_CLIENT) {
7777                 if (!is_zero_ether_addr(params.go_dev_addr)) {
7778                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7779                                 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
7780                                 " ssid=\"%s\"",
7781                                 MAC2STR(params.peer->p2p_device_addr),
7782                                 params.go_freq,
7783                                 MAC2STR(params.go_dev_addr),
7784                                 wpa_ssid_txt(params.go_ssid,
7785                                              params.go_ssid_len));
7786                 } else {
7787                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7788                                 "peer=" MACSTR " freq=%d",
7789                                 MAC2STR(params.peer->p2p_device_addr),
7790                                 params.go_freq);
7791                 }
7792                 return 0;
7793         }
7794
7795         if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
7796                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
7797                         MACSTR, MAC2STR(params.peer->p2p_device_addr));
7798                 return 0;
7799         }
7800
7801         wpabuf_free(wpa_s->p2p_oob_dev_pw);
7802         wpa_s->p2p_oob_dev_pw = NULL;
7803
7804         if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
7805                 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
7806                            "received");
7807                 return -1;
7808         }
7809
7810         id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
7811         wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
7812         wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
7813                     params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7814         os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
7815                   params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7816         wpa_s->p2p_peer_oob_pk_hash_known = 1;
7817
7818         if (tag) {
7819                 if (id < 0x10) {
7820                         wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
7821                                    "peer OOB Device Password Id %u", id);
7822                         return -1;
7823                 }
7824                 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
7825                            "Device Password Id %u", id);
7826                 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
7827                                 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7828                                 params.oob_dev_pw_len -
7829                                 WPS_OOB_PUBKEY_HASH_LEN - 2);
7830                 wpa_s->p2p_oob_dev_pw_id = id;
7831                 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
7832                         params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7833                         params.oob_dev_pw_len -
7834                         WPS_OOB_PUBKEY_HASH_LEN - 2);
7835                 if (wpa_s->p2p_oob_dev_pw == NULL)
7836                         return -1;
7837
7838                 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7839                     wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7840                                    &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7841                         return -1;
7842         } else {
7843                 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
7844                            "without Device Password");
7845                 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
7846         }
7847
7848         switch (params.next_step) {
7849         case NO_ACTION:
7850         case BOTH_GO:
7851         case PEER_CLIENT:
7852                 /* already covered above */
7853                 return 0;
7854         case JOIN_GROUP:
7855                 return wpas_p2p_nfc_join_group(wpa_s, &params);
7856         case AUTH_JOIN:
7857                 return wpas_p2p_nfc_auth_join(wpa_s, &params, tag);
7858         case INIT_GO_NEG:
7859                 return wpas_p2p_nfc_init_go_neg(wpa_s, &params, forced_freq);
7860         case RESP_GO_NEG:
7861                 /* TODO: use own OOB Dev Pw */
7862                 return wpas_p2p_nfc_resp_go_neg(wpa_s, &params, forced_freq);
7863         }
7864
7865         return -1;
7866 }
7867
7868
7869 int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
7870                              const struct wpabuf *data, int forced_freq)
7871 {
7872         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7873                 return -1;
7874
7875         return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
7876 }
7877
7878
7879 int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
7880                                  const struct wpabuf *req,
7881                                  const struct wpabuf *sel, int forced_freq)
7882 {
7883         struct wpabuf *tmp;
7884         int ret;
7885
7886         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7887                 return -1;
7888
7889         wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
7890
7891         wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
7892                           wpabuf_head(req), wpabuf_len(req));
7893         wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
7894                           wpabuf_head(sel), wpabuf_len(sel));
7895         if (forced_freq)
7896                 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
7897         tmp = ndef_parse_p2p(init ? sel : req);
7898         if (tmp == NULL) {
7899                 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
7900                 return -1;
7901         }
7902
7903         ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
7904                                                forced_freq);
7905         wpabuf_free(tmp);
7906
7907         return ret;
7908 }
7909
7910
7911 int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
7912 {
7913         const u8 *if_addr;
7914         int go_intent = wpa_s->conf->p2p_go_intent;
7915         struct wpa_supplicant *iface;
7916
7917         if (wpa_s->global->p2p == NULL)
7918                 return -1;
7919
7920         if (!enabled) {
7921                 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
7922                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7923                 {
7924                         if (!iface->ap_iface)
7925                                 continue;
7926                         hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
7927                 }
7928                 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
7929                                                  0, NULL);
7930                 if (wpa_s->p2p_nfc_tag_enabled)
7931                         wpas_p2p_remove_pending_group_interface(wpa_s);
7932                 wpa_s->p2p_nfc_tag_enabled = 0;
7933                 return 0;
7934         }
7935
7936         if (wpa_s->global->p2p_disabled)
7937                 return -1;
7938
7939         if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
7940             wpa_s->conf->wps_nfc_dh_privkey == NULL ||
7941             wpa_s->conf->wps_nfc_dev_pw == NULL ||
7942             wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
7943                 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
7944                            "to allow static handover cases");
7945                 return -1;
7946         }
7947
7948         wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
7949
7950         wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
7951         wpabuf_free(wpa_s->p2p_oob_dev_pw);
7952         wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
7953         if (wpa_s->p2p_oob_dev_pw == NULL)
7954                 return -1;
7955         wpa_s->p2p_peer_oob_pk_hash_known = 0;
7956
7957         if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
7958             wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
7959                 /*
7960                  * P2P Group Interface present and the command came on group
7961                  * interface, so enable the token for the current interface.
7962                  */
7963                 wpa_s->create_p2p_iface = 0;
7964         } else {
7965                 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
7966         }
7967
7968         if (wpa_s->create_p2p_iface) {
7969                 enum wpa_driver_if_type iftype;
7970                 /* Prepare to add a new interface for the group */
7971                 iftype = WPA_IF_P2P_GROUP;
7972                 if (go_intent == 15)
7973                         iftype = WPA_IF_P2P_GO;
7974                 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
7975                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
7976                                    "interface for the group");
7977                         return -1;
7978                 }
7979
7980                 if_addr = wpa_s->pending_interface_addr;
7981         } else
7982                 if_addr = wpa_s->own_addr;
7983
7984         wpa_s->p2p_nfc_tag_enabled = enabled;
7985
7986         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7987                 struct hostapd_data *hapd;
7988                 if (iface->ap_iface == NULL)
7989                         continue;
7990                 hapd = iface->ap_iface->bss[0];
7991                 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
7992                 hapd->conf->wps_nfc_dh_pubkey =
7993                         wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
7994                 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
7995                 hapd->conf->wps_nfc_dh_privkey =
7996                         wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
7997                 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
7998                 hapd->conf->wps_nfc_dev_pw =
7999                         wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8000                 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8001
8002                 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8003                         wpa_dbg(iface, MSG_DEBUG,
8004                                 "P2P: Failed to enable NFC Tag for GO");
8005                 }
8006         }
8007         p2p_set_authorized_oob_dev_pw_id(
8008                 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8009                 if_addr);
8010
8011         return 0;
8012 }
8013
8014 #endif /* CONFIG_WPS_NFC */
8015
8016
8017 static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8018                                              struct wpa_used_freq_data *freqs,
8019                                              unsigned int num)
8020 {
8021         u8 curr_chan, cand, chan;
8022         unsigned int i;
8023
8024         curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8025         for (i = 0, cand = 0; i < num; i++) {
8026                 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8027                 if (curr_chan == chan) {
8028                         cand = 0;
8029                         break;
8030                 }
8031
8032                 if (chan == 1 || chan == 6 || chan == 11)
8033                         cand = chan;
8034         }
8035
8036         if (cand) {
8037                 wpa_dbg(wpa_s, MSG_DEBUG,
8038                         "P2P: Update Listen channel to %u based on operating channel",
8039                         cand);
8040                 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8041         }
8042 }
8043
8044
8045 void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
8046 {
8047         struct wpa_used_freq_data *freqs;
8048         unsigned int num = wpa_s->num_multichan_concurrent;
8049
8050         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8051                 return;
8052
8053         /*
8054          * If possible, optimize the Listen channel to be a channel that is
8055          * already used by one of the other interfaces.
8056          */
8057         if (!wpa_s->conf->p2p_optimize_listen_chan)
8058                 return;
8059
8060         if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8061                 return;
8062
8063         freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8064         if (!freqs)
8065                 return;
8066
8067         num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8068
8069         wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
8070         os_free(freqs);
8071 }
8072
8073
8074 void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
8075 {
8076         if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
8077                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
8078                         "the management interface is being removed");
8079                 wpas_p2p_deinit_global(wpa_s->global);
8080         }
8081 }
8082
8083
8084 void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
8085 {
8086         if (wpa_s->ap_iface->bss)
8087                 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
8088         wpas_p2p_group_deinit(wpa_s);
8089 }