wpa_supplicant/p2p_supplicant.c

   1 /*
   2  * wpa_supplicant - P2P
   3  * Copyright (c) 2009-2010, Atheros Communications
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "includes.h"
  16
  17 #include "common.h"
  18 #include "eloop.h"
  19 #include "common/ieee802_11_common.h"
  20 #include "common/ieee802_11_defs.h"
  21 #include "common/wpa_ctrl.h"
  22 #include "wps/wps_i.h"
  23 #include "p2p/p2p.h"
  24 #include "ap/hostapd.h"
  25 #include "ap/p2p_hostapd.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 "mlme.h"
  34 #include "notify.h"
  35 #include "scan.h"
  36 #include "bss.h"
  37 #include "wps_supplicant.h"
  38 #include "p2p_supplicant.h"
  39
  40
  41 /*
  42  * How many times to try to scan to find the GO before giving up on join
  43  * request.
  44  */
  45 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
  46
  47
  48 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
  49 static struct wpa_supplicant *
  50 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
  51                          int go);
  52 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
  53 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
  54 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
  55                          const u8 *dev_addr, enum p2p_wps_method wps_method);
  56 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
  57 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
  58 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
  59 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
  60
  61
  62 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
  63                                       struct wpa_scan_results *scan_res)
  64 {
  65         size_t i;
  66
  67         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
  68                 return;
  69
  70         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
  71                    (int) scan_res->num);
  72
  73         for (i = 0; i < scan_res->num; i++) {
  74                 struct wpa_scan_res *bss = scan_res->res[i];
  75                 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
  76                                          bss->freq, bss->level,
  77                                          (const u8 *) (bss + 1),
  78                                          bss->ie_len) > 0)
  79                         break;
  80         }
  81
  82         p2p_scan_res_handled(wpa_s->global->p2p);
  83 }
  84
  85
  86 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
  87                          unsigned int num_req_dev_types,
  88                          const u8 *req_dev_types)
  89 {
  90         struct wpa_supplicant *wpa_s = ctx;
  91         struct wpa_driver_scan_params params;
  92         int ret;
  93         struct wpabuf *wps_ie, *ies;
  94         int social_channels[] = { 2412, 2437, 2462, 0, 0 };
  95
  96         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
  97                 return -1;
  98
  99         os_memset(&params, 0, sizeof(params));
 100
 101         /* P2P Wildcard SSID */
 102         params.num_ssids = 1;
 103         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
 104         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
 105
 106         wpa_s->wps->dev.p2p = 1;
 107         wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
 108                                         WPS_REQ_ENROLLEE,
 109                                         num_req_dev_types, req_dev_types);
 110         if (wps_ie == NULL)
 111                 return -1;
 112
 113         ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
 114         if (ies == NULL) {
 115                 wpabuf_free(wps_ie);
 116                 return -1;
 117         }
 118         wpabuf_put_buf(ies, wps_ie);
 119         wpabuf_free(wps_ie);
 120
 121         p2p_scan_ie(wpa_s->global->p2p, ies);
 122
 123         params.extra_ies = wpabuf_head(ies);
 124         params.extra_ies_len = wpabuf_len(ies);
 125
 126         switch (type) {
 127         case P2P_SCAN_SOCIAL:
 128                 params.freqs = social_channels;
 129                 break;
 130         case P2P_SCAN_FULL:
 131                 break;
 132         case P2P_SCAN_SPECIFIC:
 133                 social_channels[0] = freq;
 134                 social_channels[1] = 0;
 135                 params.freqs = social_channels;
 136                 break;
 137         case P2P_SCAN_SOCIAL_PLUS_ONE:
 138                 social_channels[3] = freq;
 139                 params.freqs = social_channels;
 140                 break;
 141         }
 142
 143         wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
 144         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
 145                 ret = ieee80211_sta_req_scan(wpa_s, &params);
 146         else
 147                 ret = wpa_drv_scan(wpa_s, &params);
 148
 149         wpabuf_free(ies);
 150
 151         return ret;
 152 }
 153
 154
 155 #ifdef CONFIG_CLIENT_MLME
 156 static void p2p_rx_action_mlme(void *ctx, const u8 *buf, size_t len, int freq)
 157 {
 158         struct wpa_supplicant *wpa_s = ctx;
 159         const struct ieee80211_mgmt *mgmt;
 160         size_t hdr_len;
 161
 162         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
 163                 return;
 164         mgmt = (const struct ieee80211_mgmt *) buf;
 165         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 166         if (hdr_len > len)
 167                 return;
 168         p2p_rx_action(wpa_s->global->p2p, mgmt->da, mgmt->sa, mgmt->bssid,
 169                       mgmt->u.action.category,
 170                       &mgmt->u.action.u.vs_public_action.action,
 171                       len - hdr_len, freq);
 172 }
 173 #endif /* CONFIG_CLIENT_MLME */
 174
 175
 176 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
 177 {
 178         switch (p2p_group_interface) {
 179         case P2P_GROUP_INTERFACE_PENDING:
 180                 return WPA_IF_P2P_GROUP;
 181         case P2P_GROUP_INTERFACE_GO:
 182                 return WPA_IF_P2P_GO;
 183         case P2P_GROUP_INTERFACE_CLIENT:
 184                 return WPA_IF_P2P_CLIENT;
 185         }
 186
 187         return WPA_IF_P2P_GROUP;
 188 }
 189
 190
 191 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
 192                                                   const u8 *ssid,
 193                                                   size_t ssid_len, int *go)
 194 {
 195         struct wpa_ssid *s;
 196
 197         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 198                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 199                         if (s->disabled != 0 || !s->p2p_group ||
 200                             s->ssid_len != ssid_len ||
 201                             os_memcmp(ssid, s->ssid, ssid_len) != 0)
 202                                 continue;
 203                         if (s->mode == WPAS_MODE_P2P_GO &&
 204                             s != wpa_s->current_ssid)
 205                                 continue;
 206                         if (go)
 207                                 *go = s->mode == WPAS_MODE_P2P_GO;
 208                         return wpa_s;
 209                 }
 210         }
 211
 212         return NULL;
 213 }
 214
 215
 216 static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s)
 217 {
 218         struct wpa_ssid *ssid;
 219         char *gtype;
 220         const char *reason;
 221
 222         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
 223
 224         ssid = wpa_s->current_ssid;
 225         if (ssid == NULL) {
 226                 /*
 227                  * The current SSID was not known, but there may still be a
 228                  * pending P2P group interface waiting for provisioning.
 229                  */
 230                 ssid = wpa_s->conf->ssid;
 231                 while (ssid) {
 232                         if (ssid->p2p_group &&
 233                             (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 234                              (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
 235                                 break;
 236                         ssid = ssid->next;
 237                 }
 238         }
 239         if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
 240                 gtype = "GO";
 241         else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
 242                  (ssid && ssid->mode == WPAS_MODE_INFRA)) {
 243                 wpa_s->reassociate = 0;
 244                 wpa_s->disconnected = 1;
 245                 wpa_supplicant_deauthenticate(wpa_s,
 246                                               WLAN_REASON_DEAUTH_LEAVING);
 247                 gtype = "client";
 248         } else
 249                 gtype = "GO";
 250         if (wpa_s->cross_connect_in_use) {
 251                 wpa_s->cross_connect_in_use = 0;
 252                 wpa_msg(wpa_s->parent, MSG_INFO,
 253                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
 254                         wpa_s->ifname, wpa_s->cross_connect_uplink);
 255         }
 256         switch (wpa_s->removal_reason) {
 257         case P2P_GROUP_REMOVAL_REQUESTED:
 258                 reason = " reason=REQUESTED";
 259                 break;
 260         case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
 261                 reason = " reason=IDLE";
 262                 break;
 263         case P2P_GROUP_REMOVAL_UNAVAILABLE:
 264                 reason = " reason=UNAVAILABLE";
 265                 break;
 266         default:
 267                 reason = "";
 268                 break;
 269         }
 270         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_REMOVED "%s %s%s",
 271                 wpa_s->ifname, gtype, reason);
 272
 273         if (ssid)
 274                 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
 275
 276         if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
 277                 struct wpa_global *global;
 278                 char *ifname;
 279                 enum wpa_driver_if_type type;
 280                 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
 281                         wpa_s->ifname);
 282                 global = wpa_s->global;
 283                 ifname = os_strdup(wpa_s->ifname);
 284                 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
 285                 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
 286                 wpa_s = global->ifaces;
 287                 if (wpa_s && ifname)
 288                         wpa_drv_if_remove(wpa_s, type, ifname);
 289                 os_free(ifname);
 290                 return;
 291         }
 292
 293         wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
 294         if (ssid && (ssid->p2p_group ||
 295                      ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 296                      (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
 297                 int id = ssid->id;
 298                 if (ssid == wpa_s->current_ssid) {
 299                         wpa_sm_set_config(wpa_s->wpa, NULL);
 300                         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 301                         wpa_s->current_ssid = NULL;
 302                 }
 303                 /*
 304                  * Networks objects created during any P2P activities are not
 305                  * exposed out as they might/will confuse certain non-P2P aware
 306                  * applications since these network objects won't behave like
 307                  * regular ones.
 308                  *
 309                  * Likewise, we don't send out network removed signals for such
 310                  * network objects.
 311                  */
 312                 wpa_config_remove_network(wpa_s->conf, id);
 313                 wpa_supplicant_clear_status(wpa_s);
 314         } else {
 315                 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
 316                            "found");
 317         }
 318         wpa_supplicant_ap_deinit(wpa_s);
 319 }
 320
 321
 322 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
 323                                      u8 *go_dev_addr,
 324                                      const u8 *ssid, size_t ssid_len)
 325 {
 326         struct wpa_bss *bss;
 327         const u8 *bssid;
 328         struct wpabuf *p2p;
 329         u8 group_capab;
 330         const u8 *addr;
 331
 332         if (wpa_s->go_params)
 333                 bssid = wpa_s->go_params->peer_interface_addr;
 334         else
 335                 bssid = wpa_s->bssid;
 336
 337         bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
 338         if (bss == NULL) {
 339                 u8 iface_addr[ETH_ALEN];
 340                 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
 341                                            iface_addr) == 0)
 342                         bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
 343         }
 344         if (bss == NULL) {
 345                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 346                            "group is persistent - BSS " MACSTR " not found",
 347                            MAC2STR(bssid));
 348                 return 0;
 349         }
 350
 351         p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
 352         if (p2p == NULL) {
 353                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 354                            "group is persistent - BSS " MACSTR
 355                            " did not include P2P IE", MAC2STR(bssid));
 356                 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
 357                             (u8 *) (bss + 1), bss->ie_len);
 358                 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
 359                             ((u8 *) bss + 1) + bss->ie_len,
 360                             bss->beacon_ie_len);
 361                 return 0;
 362         }
 363
 364         group_capab = p2p_get_group_capab(p2p);
 365         addr = p2p_get_go_dev_addr(p2p);
 366         wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
 367                    "group_capab=0x%x", group_capab);
 368         if (addr) {
 369                 os_memcpy(go_dev_addr, addr, ETH_ALEN);
 370                 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
 371                            MAC2STR(addr));
 372         } else
 373                 os_memset(go_dev_addr, 0, ETH_ALEN);
 374         wpabuf_free(p2p);
 375
 376         wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
 377                    "go_dev_addr=" MACSTR,
 378                    MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
 379
 380         return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
 381 }
 382
 383
 384 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
 385                                            struct wpa_ssid *ssid,
 386                                            const u8 *go_dev_addr)
 387 {
 388         struct wpa_ssid *s;
 389         int changed = 0;
 390
 391         wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
 392                    "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
 393         for (s = wpa_s->conf->ssid; s; s = s->next) {
 394                 if (s->disabled == 2 &&
 395                     os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
 396                     s->ssid_len == ssid->ssid_len &&
 397                     os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
 398                         break;
 399         }
 400
 401         if (s) {
 402                 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
 403                            "entry");
 404                 if (ssid->passphrase && !s->passphrase)
 405                         changed = 1;
 406                 else if (ssid->passphrase && s->passphrase &&
 407                          os_strcmp(ssid->passphrase, s->passphrase) != 0)
 408                         changed = 1;
 409         } else {
 410                 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
 411                            "entry");
 412                 changed = 1;
 413                 s = wpa_config_add_network(wpa_s->conf);
 414                 if (s == NULL)
 415                         return -1;
 416
 417                 /*
 418                  * Instead of network_added we emit persistent_group_added
 419                  * notification. Also to keep the defense checks in
 420                  * persistent_group obj registration method, we set the
 421                  * relevant flags in s to designate it as a persistent group.
 422                  */
 423                 s->p2p_group = 1;
 424                 s->p2p_persistent_group = 1;
 425                 wpas_notify_persistent_group_added(wpa_s, s);
 426                 wpa_config_set_network_defaults(s);
 427         }
 428
 429         s->p2p_group = 1;
 430         s->p2p_persistent_group = 1;
 431         s->disabled = 2;
 432         s->bssid_set = 1;
 433         os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
 434         s->mode = ssid->mode;
 435         s->auth_alg = WPA_AUTH_ALG_OPEN;
 436         s->key_mgmt = WPA_KEY_MGMT_PSK;
 437         s->proto = WPA_PROTO_RSN;
 438         s->pairwise_cipher = WPA_CIPHER_CCMP;
 439         s->export_keys = 1;
 440         if (ssid->passphrase) {
 441                 os_free(s->passphrase);
 442                 s->passphrase = os_strdup(ssid->passphrase);
 443         }
 444         if (ssid->psk_set) {
 445                 s->psk_set = 1;
 446                 os_memcpy(s->psk, ssid->psk, 32);
 447         }
 448         if (s->passphrase && !s->psk_set)
 449                 wpa_config_update_psk(s);
 450         if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
 451                 os_free(s->ssid);
 452                 s->ssid = os_malloc(ssid->ssid_len);
 453         }
 454         if (s->ssid) {
 455                 s->ssid_len = ssid->ssid_len;
 456                 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
 457         }
 458
 459 #ifndef CONFIG_NO_CONFIG_WRITE
 460         if (changed && wpa_s->conf->update_config &&
 461             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 462                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
 463         }
 464 #endif /* CONFIG_NO_CONFIG_WRITE */
 465
 466         return s->id;
 467 }
 468
 469
 470 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
 471                                            int success)
 472 {
 473         struct wpa_ssid *ssid;
 474         const char *ssid_txt;
 475         int client;
 476         int persistent;
 477         u8 go_dev_addr[ETH_ALEN];
 478         int network_id = -1;
 479
 480         /*
 481          * This callback is likely called for the main interface. Update wpa_s
 482          * to use the group interface if a new interface was created for the
 483          * group.
 484          */
 485         if (wpa_s->global->p2p_group_formation)
 486                 wpa_s = wpa_s->global->p2p_group_formation;
 487         wpa_s->global->p2p_group_formation = NULL;
 488         wpa_s->p2p_in_provisioning = 0;
 489
 490         if (!success) {
 491                 wpa_msg(wpa_s->parent, MSG_INFO,
 492                         P2P_EVENT_GROUP_FORMATION_FAILURE);
 493                 wpas_p2p_group_delete(wpa_s);
 494                 return;
 495         }
 496
 497         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
 498
 499         ssid = wpa_s->current_ssid;
 500         if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
 501                 ssid->mode = WPAS_MODE_P2P_GO;
 502                 p2p_group_notif_formation_done(wpa_s->p2p_group);
 503                 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
 504         }
 505
 506         persistent = 0;
 507         if (ssid) {
 508                 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
 509                 client = ssid->mode == WPAS_MODE_INFRA;
 510                 if (ssid->mode == WPAS_MODE_P2P_GO) {
 511                         persistent = ssid->p2p_persistent_group;
 512 #ifndef ANDROID_BRCM_P2P_PATCH
 513                         os_memcpy(go_dev_addr, wpa_s->parent->own_addr,
 514                                   ETH_ALEN);
 515 #else
 516                         /* P2P_ADDR: Use p2p_dev_addr instead of own mac addr */
 517                         os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
 518                                   ETH_ALEN);
 519
 520 #endif
 521                 } else
 522                         persistent = wpas_p2p_persistent_group(wpa_s,
 523                                                                go_dev_addr,
 524                                                                ssid->ssid,
 525                                                                ssid->ssid_len);
 526         } else {
 527                 ssid_txt = "";
 528                 client = wpa_s->p2p_group_interface ==
 529                         P2P_GROUP_INTERFACE_CLIENT;
 530                 os_memset(go_dev_addr, 0, ETH_ALEN);
 531         }
 532
 533         wpa_s->show_group_started = 0;
 534         if (client) {
 535                 /*
 536                  * Indicate event only after successfully completed 4-way
 537                  * handshake, i.e., when the interface is ready for data
 538                  * packets.
 539                  */
 540                 wpa_s->show_group_started = 1;
 541         } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
 542                 char psk[65];
 543                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
 544                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 545                         "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
 546                         "%s",
 547                         wpa_s->ifname, ssid_txt, ssid->frequency, psk,
 548                         MAC2STR(go_dev_addr),
 549                         persistent ? " [PERSISTENT]" : "");
 550                 wpas_p2p_cross_connect_setup(wpa_s);
 551                 wpas_p2p_set_group_idle_timeout(wpa_s);
 552         } else {
 553                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 554                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 555                         "go_dev_addr=" MACSTR "%s",
 556                         wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
 557                         ssid && ssid->passphrase ? ssid->passphrase : "",
 558                         MAC2STR(go_dev_addr),
 559                         persistent ? " [PERSISTENT]" : "");
 560                 wpas_p2p_cross_connect_setup(wpa_s);
 561                 wpas_p2p_set_group_idle_timeout(wpa_s);
 562         }
 563
 564         if (persistent)
 565                 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
 566                                                              ssid, go_dev_addr);
 567         if (network_id < 0)
 568                 network_id = ssid->id;
 569         if (!client)
 570                 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
 571 }
 572
 573
 574 static struct wpa_supplicant *
 575 wpas_get_tx_interface(struct wpa_supplicant *wpa_s, const u8 *src)
 576 {
 577         struct wpa_supplicant *iface;
 578
 579         if (os_memcmp(src, wpa_s->own_addr, ETH_ALEN) == 0)
 580                 return wpa_s;
 581
 582         /*
 583          * Try to find a group interface that matches with the source address.
 584          */
 585         iface = wpa_s->global->ifaces;
 586         while (iface) {
 587                 if (os_memcmp(wpa_s->pending_action_src,
 588                               iface->own_addr, ETH_ALEN) == 0)
 589                         break;
 590                 iface = iface->next;
 591         }
 592         if (iface) {
 593                 wpa_printf(MSG_DEBUG, "P2P: Use group interface %s "
 594                            "instead of interface %s for Action TX",
 595                            iface->ifname, wpa_s->ifname);
 596                 return iface;
 597         }
 598
 599         return wpa_s;
 600 }
 601
 602
 603 static void wpas_send_action_cb(void *eloop_ctx, void *timeout_ctx)
 604 {
 605         struct wpa_supplicant *wpa_s = eloop_ctx;
 606         struct wpa_supplicant *iface;
 607         int res;
 608         int without_roc;
 609
 610         without_roc = wpa_s->pending_action_without_roc;
 611         wpa_s->pending_action_without_roc = 0;
 612         wpa_printf(MSG_DEBUG, "P2P: Send Action callback (without_roc=%d "
 613                    "pending_action_tx=%p)",
 614                    without_roc, wpa_s->pending_action_tx);
 615
 616         if (wpa_s->pending_action_tx == NULL)
 617                 return;
 618
 619         /*
 620          * This call is likely going to be on the P2P device instance if the
 621          * driver uses a separate interface for that purpose. However, some
 622          * Action frames are actually sent within a P2P Group and when that is
 623          * the case, we need to follow power saving (e.g., GO buffering the
 624          * frame for a client in PS mode or a client following the advertised
 625          * NoA from its GO). To make that easier for the driver, select the
 626          * correct group interface here.
 627          */
 628         iface = wpas_get_tx_interface(wpa_s, wpa_s->pending_action_src);
 629
 630         if (wpa_s->off_channel_freq != wpa_s->pending_action_freq &&
 631             wpa_s->pending_action_freq != 0 &&
 632             wpa_s->pending_action_freq != iface->assoc_freq) {
 633                 wpa_printf(MSG_DEBUG, "P2P: Pending Action frame TX "
 634                            "waiting for another freq=%u (off_channel_freq=%u "
 635                            "assoc_freq=%u)",
 636                            wpa_s->pending_action_freq,
 637                            wpa_s->off_channel_freq,
 638                            iface->assoc_freq);
 639                 if (without_roc && wpa_s->off_channel_freq == 0) {
 640                         /*
 641                          * We may get here if wpas_send_action() found us to be
 642                          * on the correct channel, but remain-on-channel cancel
 643                          * event was received before getting here.
 644                          */
 645                         wpa_printf(MSG_DEBUG, "P2P: Schedule "
 646                                    "remain-on-channel to send Action frame");
 647                         if (wpa_drv_remain_on_channel(
 648                                     wpa_s, wpa_s->pending_action_freq, 200) <
 649                             0) {
 650                                 wpa_printf(MSG_DEBUG, "P2P: Failed to request "
 651                                            "driver to remain on channel (%u "
 652                                            "MHz) for Action Frame TX",
 653                                            wpa_s->pending_action_freq);
 654                         } else {
 655                                 wpa_s->off_channel_freq = 0;
 656                                 wpa_s->roc_waiting_drv_freq =
 657                                         wpa_s->pending_action_freq;
 658                         }
 659                 }
 660                 return;
 661         }
 662
 663         wpa_printf(MSG_DEBUG, "P2P: Sending pending Action frame to "
 664                    MACSTR " using interface %s",
 665                    MAC2STR(wpa_s->pending_action_dst), iface->ifname);
 666         res = wpa_drv_send_action(iface, wpa_s->pending_action_freq, 0,
 667                                   wpa_s->pending_action_dst,
 668                                   wpa_s->pending_action_src,
 669                                   wpa_s->pending_action_bssid,
 670                                   wpabuf_head(wpa_s->pending_action_tx),
 671                                   wpabuf_len(wpa_s->pending_action_tx));
 672         if (res) {
 673                 wpa_printf(MSG_DEBUG, "P2P: Failed to send the pending "
 674                            "Action frame");
 675                 /*
 676                  * Use fake TX status event to allow P2P state machine to
 677                  * continue.
 678                  */
 679                 wpas_send_action_tx_status(
 680                         wpa_s, wpa_s->pending_action_dst,
 681                         wpabuf_head(wpa_s->pending_action_tx),
 682                         wpabuf_len(wpa_s->pending_action_tx),
 683                         P2P_SEND_ACTION_FAILED);
 684         }
 685 }
 686
 687
 688 void wpas_send_action_tx_status(struct wpa_supplicant *wpa_s, const u8 *dst,
 689                                 const u8 *data, size_t data_len,
 690                                 enum p2p_send_action_result result)
 691 {
 692         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
 693                 return;
 694         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
 695                 return;
 696
 697         if (wpa_s->pending_action_tx == NULL) {
 698                 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - no "
 699                            "pending operation");
 700                 return;
 701         }
 702
 703         if (os_memcmp(dst, wpa_s->pending_action_dst, ETH_ALEN) != 0) {
 704                 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - unknown "
 705                            "destination address");
 706                 return;
 707         }
 708
 709         wpabuf_free(wpa_s->pending_action_tx);
 710         wpa_s->pending_action_tx = NULL;
 711
 712         p2p_send_action_cb(wpa_s->global->p2p, wpa_s->pending_action_freq,
 713                            wpa_s->pending_action_dst,
 714                            wpa_s->pending_action_src,
 715                            wpa_s->pending_action_bssid,
 716                            result);
 717
 718         if (wpa_s->pending_pd_before_join &&
 719             (os_memcmp(wpa_s->pending_action_dst, wpa_s->pending_join_dev_addr,
 720                        ETH_ALEN) == 0 ||
 721              os_memcmp(wpa_s->pending_action_dst,
 722                        wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
 723                 wpa_s->pending_pd_before_join = 0;
 724                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
 725                            "join-existing-group operation");
 726                 wpas_p2p_join_start(wpa_s);
 727         }
 728 }
 729
 730
 731 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
 732                             const u8 *src, const u8 *bssid, const u8 *buf,
 733                             size_t len, unsigned int wait_time)
 734 {
 735         struct wpa_supplicant *wpa_s = ctx;
 736
 737         wpa_printf(MSG_DEBUG, "P2P: Send action frame: freq=%d dst=" MACSTR
 738                    " src=" MACSTR " bssid=" MACSTR " len=%d",
 739                    freq, MAC2STR(dst), MAC2STR(src), MAC2STR(bssid),
 740                    (int) len);
 741
 742         if (wpa_s->pending_action_tx) {
 743                 wpa_printf(MSG_DEBUG, "P2P: Dropped pending Action frame TX "
 744                            "to " MACSTR, MAC2STR(wpa_s->pending_action_dst));
 745                 wpabuf_free(wpa_s->pending_action_tx);
 746         }
 747         wpa_s->pending_action_tx = wpabuf_alloc(len);
 748         if (wpa_s->pending_action_tx == NULL) {
 749                 wpa_printf(MSG_DEBUG, "P2P: Failed to allocate Action frame "
 750                            "TX buffer (len=%llu)", (unsigned long long) len);
 751                 return -1;
 752         }
 753         wpabuf_put_data(wpa_s->pending_action_tx, buf, len);
 754         os_memcpy(wpa_s->pending_action_src, src, ETH_ALEN);
 755         os_memcpy(wpa_s->pending_action_dst, dst, ETH_ALEN);
 756         os_memcpy(wpa_s->pending_action_bssid, bssid, ETH_ALEN);
 757         wpa_s->pending_action_freq = freq;
 758
 759         if (freq != 0 && wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) {
 760                 struct wpa_supplicant *iface;
 761
 762                 iface = wpas_get_tx_interface(wpa_s, wpa_s->pending_action_src);
 763                 wpa_s->action_tx_wait_time = wait_time;
 764
 765                 return wpa_drv_send_action(iface, wpa_s->pending_action_freq,
 766                                         wait_time, wpa_s->pending_action_dst,
 767                                         wpa_s->pending_action_src,
 768                                         wpa_s->pending_action_bssid,
 769                                         wpabuf_head(wpa_s->pending_action_tx),
 770                                         wpabuf_len(wpa_s->pending_action_tx));
 771         }
 772
 773         if (freq) {
 774                 struct wpa_supplicant *tx_iface;
 775                 tx_iface = wpas_get_tx_interface(wpa_s, src);
 776                 if (tx_iface->assoc_freq == freq) {
 777                         wpa_printf(MSG_DEBUG, "P2P: Already on requested "
 778                                    "channel (TX interface operating channel)");
 779                         freq = 0;
 780                 }
 781         }
 782
 783         if (wpa_s->off_channel_freq == freq || freq == 0) {
 784                 wpa_printf(MSG_DEBUG, "P2P: Already on requested channel; "
 785                            "send Action frame immediately");
 786                 /* TODO: Would there ever be need to extend the current
 787                  * duration on the channel? */
 788                 wpa_s->pending_action_without_roc = 1;
 789                 eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
 790                 eloop_register_timeout(0, 0, wpas_send_action_cb, wpa_s, NULL);
 791                 return 0;
 792         }
 793         wpa_s->pending_action_without_roc = 0;
 794
 795         if (wpa_s->roc_waiting_drv_freq == freq) {
 796                 wpa_printf(MSG_DEBUG, "P2P: Already waiting for driver to get "
 797                            "to frequency %u MHz; continue waiting to send the "
 798                            "Action frame", freq);
 799                 return 0;
 800         }
 801
 802         wpa_printf(MSG_DEBUG, "P2P: Schedule Action frame to be transmitted "
 803                    "once the driver gets to the requested channel");
 804         if (wait_time > wpa_s->max_remain_on_chan)
 805                 wait_time = wpa_s->max_remain_on_chan;
 806         if (wpa_drv_remain_on_channel(wpa_s, freq, wait_time) < 0) {
 807                 wpa_printf(MSG_DEBUG, "P2P: Failed to request driver "
 808                            "to remain on channel (%u MHz) for Action "
 809                            "Frame TX", freq);
 810                 return -1;
 811         }
 812         wpa_s->off_channel_freq = 0;
 813         wpa_s->roc_waiting_drv_freq = freq;
 814
 815         return 0;
 816 }
 817
 818
 819 static void wpas_send_action_done(void *ctx)
 820 {
 821         struct wpa_supplicant *wpa_s = ctx;
 822         wpa_printf(MSG_DEBUG, "P2P: Action frame sequence done notification");
 823         wpabuf_free(wpa_s->pending_action_tx);
 824         wpa_s->pending_action_tx = NULL;
 825         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) {
 826                 if (wpa_s->action_tx_wait_time)
 827                         wpa_drv_send_action_cancel_wait(wpa_s);
 828                 wpa_s->off_channel_freq = 0;
 829         } else if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
 830                 wpa_drv_cancel_remain_on_channel(wpa_s);
 831                 wpa_s->off_channel_freq = 0;
 832                 wpa_s->roc_waiting_drv_freq = 0;
 833         }
 834 }
 835
 836
 837 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
 838                                     struct p2p_go_neg_results *params)
 839 {
 840         if (wpa_s->go_params == NULL) {
 841                 wpa_s->go_params = os_malloc(sizeof(*params));
 842                 if (wpa_s->go_params == NULL)
 843                         return -1;
 844         }
 845         os_memcpy(wpa_s->go_params, params, sizeof(*params));
 846         return 0;
 847 }
 848
 849
 850 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
 851                                     struct p2p_go_neg_results *res)
 852 {
 853         wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
 854                    MAC2STR(res->peer_interface_addr));
 855         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
 856                           res->ssid, res->ssid_len);
 857         wpa_supplicant_ap_deinit(wpa_s);
 858         wpas_copy_go_neg_results(wpa_s, res);
 859         if (res->wps_method == WPS_PBC)
 860                 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
 861         else {
 862                 u16 dev_pw_id = DEV_PW_DEFAULT;
 863                 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
 864                         dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
 865                 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
 866                                    wpa_s->p2p_pin, 1, dev_pw_id);
 867         }
 868 }
 869
 870
 871 static void p2p_go_configured(void *ctx, void *data)
 872 {
 873         struct wpa_supplicant *wpa_s = ctx;
 874         struct p2p_go_neg_results *params = data;
 875         struct wpa_ssid *ssid;
 876         int network_id = -1;
 877
 878         ssid = wpa_s->current_ssid;
 879         if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
 880                 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
 881                 if (wpa_s->global->p2p_group_formation == wpa_s)
 882                         wpa_s->global->p2p_group_formation = NULL;
 883                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 884                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 885                         "go_dev_addr=" MACSTR "%s",
 886                         wpa_s->ifname,
 887                         wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
 888                         ssid->frequency,
 889                         params->passphrase ? params->passphrase : "",
 890 #ifndef ANDROID_BRCM_P2P_PATCH
 891                         MAC2STR(wpa_s->parent->own_addr),
 892 #else
 893                         /* P2P_ADDR: use p2p_dev_addr instead of own addr */
 894                         MAC2STR(wpa_s->global->p2p_dev_addr),
 895 #endif
 896                         params->persistent_group ? " [PERSISTENT]" : "");
 897                 if (params->persistent_group)
 898                         network_id = wpas_p2p_store_persistent_group(
 899                                 wpa_s->parent, ssid,
 900 #ifndef ANDROID_BRCM_P2P_PATCH
 901                                 wpa_s->parent->own_addr);
 902 #else
 903                                 /* P2P_ADDR: Use p2p device address */
 904                                 wpa_s->global->p2p_dev_addr);
 905 #endif
 906                 if (network_id < 0)
 907                         network_id = ssid->id;
 908                 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
 909                 wpas_p2p_cross_connect_setup(wpa_s);
 910                 wpas_p2p_set_group_idle_timeout(wpa_s);
 911                 return;
 912         }
 913
 914         wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
 915         if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
 916                                               params->peer_interface_addr)) {
 917                 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
 918                            "filtering");
 919                 return;
 920         }
 921         if (params->wps_method == WPS_PBC)
 922                 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
 923                                           NULL);
 924         else if (wpa_s->p2p_pin[0])
 925                 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
 926                                           wpa_s->p2p_pin, NULL, 0);
 927         os_free(wpa_s->go_params);
 928         wpa_s->go_params = NULL;
 929 }
 930
 931
 932 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
 933                               struct p2p_go_neg_results *params,
 934                               int group_formation)
 935 {
 936         struct wpa_ssid *ssid;
 937
 938         if (wpas_copy_go_neg_results(wpa_s, params) < 0)
 939                 return;
 940
 941         ssid = wpa_config_add_network(wpa_s->conf);
 942         if (ssid == NULL)
 943                 return;
 944
 945         wpa_config_set_network_defaults(ssid);
 946         ssid->temporary = 1;
 947         ssid->p2p_group = 1;
 948         ssid->p2p_persistent_group = params->persistent_group;
 949         ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
 950                 WPAS_MODE_P2P_GO;
 951         ssid->frequency = params->freq;
 952         ssid->ssid = os_zalloc(params->ssid_len + 1);
 953         if (ssid->ssid) {
 954                 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
 955                 ssid->ssid_len = params->ssid_len;
 956         }
 957         ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 958         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 959         ssid->proto = WPA_PROTO_RSN;
 960         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 961         ssid->passphrase = os_strdup(params->passphrase);
 962
 963         wpa_s->ap_configured_cb = p2p_go_configured;
 964         wpa_s->ap_configured_cb_ctx = wpa_s;
 965         wpa_s->ap_configured_cb_data = wpa_s->go_params;
 966         wpa_s->connect_without_scan = ssid;
 967         wpa_s->reassociate = 1;
 968         wpa_s->disconnected = 0;
 969         wpa_supplicant_req_scan(wpa_s, 0, 0);
 970 }
 971
 972
 973 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
 974                                   const struct wpa_supplicant *src)
 975 {
 976         struct wpa_config *d;
 977         const struct wpa_config *s;
 978
 979         d = dst->conf;
 980         s = src->conf;
 981
 982 #define C(n) if (s->n) d->n = os_strdup(s->n)
 983         C(device_name);
 984         C(manufacturer);
 985         C(model_name);
 986         C(model_number);
 987         C(serial_number);
 988         C(config_methods);
 989 #undef C
 990
 991         os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
 992         os_memcpy(d->sec_device_type, s->sec_device_type,
 993                   sizeof(d->sec_device_type));
 994         d->num_sec_device_types = s->num_sec_device_types;
 995
 996         d->p2p_group_idle = s->p2p_group_idle;
 997         d->p2p_intra_bss = s->p2p_intra_bss;
 998 }
 999
1000
1001 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1002                                         enum wpa_driver_if_type type)
1003 {
1004         char ifname[120], force_ifname[120];
1005
1006         if (wpa_s->pending_interface_name[0]) {
1007                 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1008                            "- skip creation of a new one");
1009                 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1010                         wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1011                                    "unknown?! ifname='%s'",
1012                                    wpa_s->pending_interface_name);
1013                         return -1;
1014                 }
1015                 return 0;
1016         }
1017
1018         os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
1019                     wpa_s->p2p_group_idx);
1020         if (os_strlen(ifname) >= IFNAMSIZ &&
1021             os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1022                 /* Try to avoid going over the IFNAMSIZ length limit */
1023                 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
1024                             wpa_s->p2p_group_idx);
1025         }
1026         force_ifname[0] = '\0';
1027
1028         wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1029                    ifname);
1030         wpa_s->p2p_group_idx++;
1031
1032         wpa_s->pending_interface_type = type;
1033         if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1034                            wpa_s->pending_interface_addr, NULL) < 0) {
1035                 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1036                            "interface");
1037                 return -1;
1038         }
1039
1040         if (force_ifname[0]) {
1041                 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1042                            force_ifname);
1043                 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1044                            sizeof(wpa_s->pending_interface_name));
1045         } else
1046                 os_strlcpy(wpa_s->pending_interface_name, ifname,
1047                            sizeof(wpa_s->pending_interface_name));
1048         wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1049                    MACSTR, wpa_s->pending_interface_name,
1050                    MAC2STR(wpa_s->pending_interface_addr));
1051
1052         return 0;
1053 }
1054
1055
1056 static void wpas_p2p_remove_pending_group_interface(
1057         struct wpa_supplicant *wpa_s)
1058 {
1059         if (!wpa_s->pending_interface_name[0] ||
1060             is_zero_ether_addr(wpa_s->pending_interface_addr))
1061                 return; /* No pending virtual interface */
1062
1063         wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1064                    wpa_s->pending_interface_name);
1065         wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1066                           wpa_s->pending_interface_name);
1067         os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1068         wpa_s->pending_interface_name[0] = '\0';
1069 }
1070
1071
1072 static struct wpa_supplicant *
1073 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1074 {
1075         struct wpa_interface iface;
1076         struct wpa_supplicant *group_wpa_s;
1077
1078         if (!wpa_s->pending_interface_name[0]) {
1079                 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1080                 if (!wpas_p2p_create_iface(wpa_s))
1081                         return NULL;
1082                 /*
1083                  * Something has forced us to remove the pending interface; try
1084                  * to create a new one and hope for the best that we will get
1085                  * the same local address.
1086                  */
1087                 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1088                                                  WPA_IF_P2P_CLIENT) < 0)
1089                         return NULL;
1090         }
1091
1092         os_memset(&iface, 0, sizeof(iface));
1093         iface.ifname = wpa_s->pending_interface_name;
1094         iface.driver = wpa_s->driver->name;
1095         iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1096         iface.driver_param = wpa_s->conf->driver_param;
1097         group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1098         if (group_wpa_s == NULL) {
1099                 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1100                            "wpa_supplicant interface");
1101                 return NULL;
1102         }
1103         wpa_s->pending_interface_name[0] = '\0';
1104         group_wpa_s->parent = wpa_s;
1105         group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1106                 P2P_GROUP_INTERFACE_CLIENT;
1107         wpa_s->global->p2p_group_formation = group_wpa_s;
1108
1109         wpas_p2p_clone_config(group_wpa_s, wpa_s);
1110
1111         return group_wpa_s;
1112 }
1113
1114
1115 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1116                                              void *timeout_ctx)
1117 {
1118         struct wpa_supplicant *wpa_s = eloop_ctx;
1119         wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1120         if (wpa_s->global->p2p)
1121                 p2p_group_formation_failed(wpa_s->global->p2p);
1122         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1123                 wpa_drv_p2p_group_formation_failed(wpa_s);
1124         wpas_group_formation_completed(wpa_s, 0);
1125 }
1126
1127
1128 void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1129 {
1130         struct wpa_supplicant *wpa_s = ctx;
1131
1132         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1133                 wpa_drv_cancel_remain_on_channel(wpa_s);
1134                 wpa_s->off_channel_freq = 0;
1135                 wpa_s->roc_waiting_drv_freq = 0;
1136         }
1137
1138         if (res->status) {
1139                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
1140                         res->status);
1141                 wpas_notify_p2p_go_neg_completed(wpa_s, res->status);
1142                 wpas_p2p_remove_pending_group_interface(wpa_s);
1143                 return;
1144         }
1145
1146         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
1147         wpas_notify_p2p_go_neg_completed(wpa_s, P2P_SC_SUCCESS);
1148
1149         if (wpa_s->create_p2p_iface) {
1150                 struct wpa_supplicant *group_wpa_s =
1151                         wpas_p2p_init_group_interface(wpa_s, res->role_go);
1152                 if (group_wpa_s == NULL) {
1153                         wpas_p2p_remove_pending_group_interface(wpa_s);
1154                         return;
1155                 }
1156                 if (group_wpa_s != wpa_s) {
1157                         os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1158                                   sizeof(group_wpa_s->p2p_pin));
1159                         group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1160                 }
1161                 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1162                 wpa_s->pending_interface_name[0] = '\0';
1163                 group_wpa_s->p2p_in_provisioning = 1;
1164
1165                 if (res->role_go)
1166                         wpas_start_wps_go(group_wpa_s, res, 1);
1167                 else
1168                         wpas_start_wps_enrollee(group_wpa_s, res);
1169         } else {
1170                 wpa_s->p2p_in_provisioning = 1;
1171                 wpa_s->global->p2p_group_formation = wpa_s;
1172
1173                 if (res->role_go)
1174                         wpas_start_wps_go(wpa_s, res, 1);
1175                 else
1176                         wpas_start_wps_enrollee(ctx, res);
1177         }
1178
1179         wpa_s->p2p_long_listen = 0;
1180         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1181
1182         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1183         eloop_register_timeout(15 + res->peer_config_timeout / 100,
1184                                (res->peer_config_timeout % 100) * 10000,
1185                                wpas_p2p_group_formation_timeout, wpa_s, NULL);
1186 }
1187
1188
1189 void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1190 {
1191         struct wpa_supplicant *wpa_s = ctx;
1192         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1193                 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1194
1195         wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1196 }
1197
1198
1199 void wpas_dev_found(void *ctx, const u8 *addr,
1200                     const struct p2p_peer_info *info,
1201                     int new_device)
1202 {
1203         struct wpa_supplicant *wpa_s = ctx;
1204         char devtype[WPS_DEV_TYPE_BUFSIZE];
1205
1206         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1207                 " p2p_dev_addr=" MACSTR
1208                 " pri_dev_type=%s name='%s' config_methods=0x%x "
1209                 "dev_capab=0x%x group_capab=0x%x",
1210                 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1211                 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1212                                      sizeof(devtype)),
1213                 info->device_name, info->config_methods,
1214                 info->dev_capab, info->group_capab);
1215
1216         wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1217 }
1218
1219
1220 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1221 {
1222         struct wpa_supplicant *wpa_s = ctx;
1223 #ifdef ANDROID_BRCM_P2P_PATCH
1224         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1225                 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1226 #endif
1227         wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1228 }
1229
1230
1231 static int wpas_start_listen(void *ctx, unsigned int freq,
1232                              unsigned int duration,
1233                              const struct wpabuf *probe_resp_ie)
1234 {
1235         struct wpa_supplicant *wpa_s = ctx;
1236
1237         wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1238
1239         if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1240                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1241                            "report received Probe Request frames");
1242                 return -1;
1243         }
1244
1245         wpa_s->pending_listen_freq = freq;
1246         wpa_s->pending_listen_duration = duration;
1247
1248         if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1249                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1250                            "to remain on channel (%u MHz) for Listen "
1251                            "state", freq);
1252                 wpa_s->pending_listen_freq = 0;
1253                 return -1;
1254         }
1255         wpa_s->off_channel_freq = 0;
1256         wpa_s->roc_waiting_drv_freq = freq;
1257
1258         return 0;
1259 }
1260
1261
1262 static void wpas_stop_listen(void *ctx)
1263 {
1264         struct wpa_supplicant *wpa_s = ctx;
1265         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1266                 wpa_drv_cancel_remain_on_channel(wpa_s);
1267                 wpa_s->off_channel_freq = 0;
1268                 wpa_s->roc_waiting_drv_freq = 0;
1269         }
1270         wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1271         wpa_drv_probe_req_report(wpa_s, 0);
1272 }
1273
1274
1275 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1276 {
1277         struct wpa_supplicant *wpa_s = ctx;
1278         return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf));
1279 }
1280
1281
1282 static struct p2p_srv_bonjour *
1283 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1284                              const struct wpabuf *query)
1285 {
1286         struct p2p_srv_bonjour *bsrv;
1287         size_t len;
1288
1289         len = wpabuf_len(query);
1290         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1291                          struct p2p_srv_bonjour, list) {
1292                 if (len == wpabuf_len(bsrv->query) &&
1293                     os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1294                               len) == 0)
1295                         return bsrv;
1296         }
1297         return NULL;
1298 }
1299
1300
1301 static struct p2p_srv_upnp *
1302 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1303                           const char *service)
1304 {
1305         struct p2p_srv_upnp *usrv;
1306
1307         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1308                          struct p2p_srv_upnp, list) {
1309                 if (version == usrv->version &&
1310                     os_strcmp(service, usrv->service) == 0)
1311                         return usrv;
1312         }
1313         return NULL;
1314 }
1315
1316
1317 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1318                                         u8 srv_trans_id)
1319 {
1320         u8 *len_pos;
1321
1322         if (wpabuf_tailroom(resp) < 5)
1323                 return;
1324
1325         /* Length (to be filled) */
1326         len_pos = wpabuf_put(resp, 2);
1327         wpabuf_put_u8(resp, srv_proto);
1328         wpabuf_put_u8(resp, srv_trans_id);
1329         /* Status Code */
1330         wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1331         /* Response Data: empty */
1332         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1333 }
1334
1335
1336 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1337                                 struct wpabuf *resp, u8 srv_trans_id)
1338 {
1339         struct p2p_srv_bonjour *bsrv;
1340         u8 *len_pos;
1341
1342         wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1343
1344         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1345                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1346                 return;
1347         }
1348
1349         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1350                          struct p2p_srv_bonjour, list) {
1351                 if (wpabuf_tailroom(resp) <
1352                     5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1353                         return;
1354                 /* Length (to be filled) */
1355                 len_pos = wpabuf_put(resp, 2);
1356                 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1357                 wpabuf_put_u8(resp, srv_trans_id);
1358                 /* Status Code */
1359                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1360                 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1361                                   wpabuf_head(bsrv->resp),
1362                                   wpabuf_len(bsrv->resp));
1363                 /* Response Data */
1364                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1365                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1366                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1367                              2);
1368         }
1369 }
1370
1371
1372 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1373                                 struct wpabuf *resp, u8 srv_trans_id,
1374                                 const u8 *query, size_t query_len)
1375 {
1376         struct p2p_srv_bonjour *bsrv;
1377         struct wpabuf buf;
1378         u8 *len_pos;
1379
1380         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1381                           query, query_len);
1382         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1383                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1384                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1385                                             srv_trans_id);
1386                 return;
1387         }
1388
1389         if (query_len == 0) {
1390                 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1391                 return;
1392         }
1393
1394         if (wpabuf_tailroom(resp) < 5)
1395                 return;
1396         /* Length (to be filled) */
1397         len_pos = wpabuf_put(resp, 2);
1398         wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1399         wpabuf_put_u8(resp, srv_trans_id);
1400
1401         wpabuf_set(&buf, query, query_len);
1402         bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1403         if (bsrv == NULL) {
1404                 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1405                            "available");
1406
1407                 /* Status Code */
1408                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1409                 /* Response Data: empty */
1410                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1411                              2);
1412                 return;
1413         }
1414
1415         /* Status Code */
1416         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1417         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1418                           wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1419
1420         if (wpabuf_tailroom(resp) >=
1421             wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1422                 /* Response Data */
1423                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1424                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1425         }
1426         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1427 }
1428
1429
1430 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1431                              struct wpabuf *resp, u8 srv_trans_id)
1432 {
1433         struct p2p_srv_upnp *usrv;
1434         u8 *len_pos;
1435
1436         wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1437
1438         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1439                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1440                 return;
1441         }
1442
1443         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1444                          struct p2p_srv_upnp, list) {
1445                 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1446                         return;
1447
1448                 /* Length (to be filled) */
1449                 len_pos = wpabuf_put(resp, 2);
1450                 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1451                 wpabuf_put_u8(resp, srv_trans_id);
1452
1453                 /* Status Code */
1454                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1455                 /* Response Data */
1456                 wpabuf_put_u8(resp, usrv->version);
1457                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1458                            usrv->service);
1459                 wpabuf_put_str(resp, usrv->service);
1460                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1461                              2);
1462         }
1463 }
1464
1465
1466 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1467                              struct wpabuf *resp, u8 srv_trans_id,
1468                              const u8 *query, size_t query_len)
1469 {
1470         struct p2p_srv_upnp *usrv;
1471         u8 *len_pos;
1472         u8 version;
1473         char *str;
1474         int count = 0;
1475
1476         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1477                           query, query_len);
1478
1479         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1480                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1481                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1482                                             srv_trans_id);
1483                 return;
1484         }
1485
1486         if (query_len == 0) {
1487                 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1488                 return;
1489         }
1490
1491         if (wpabuf_tailroom(resp) < 5)
1492                 return;
1493
1494         /* Length (to be filled) */
1495         len_pos = wpabuf_put(resp, 2);
1496         wpabuf_put_u8(resp, P2P_SERV_UPNP);
1497         wpabuf_put_u8(resp, srv_trans_id);
1498
1499         version = query[0];
1500         str = os_malloc(query_len);
1501         if (str == NULL)
1502                 return;
1503         os_memcpy(str, query + 1, query_len - 1);
1504         str[query_len - 1] = '\0';
1505
1506         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1507                          struct p2p_srv_upnp, list) {
1508                 if (version != usrv->version)
1509                         continue;
1510
1511                 if (os_strcmp(str, "ssdp:all") != 0 &&
1512                     os_strstr(usrv->service, str) == NULL)
1513                         continue;
1514
1515                 if (wpabuf_tailroom(resp) < 2)
1516                         break;
1517                 if (count == 0) {
1518                         /* Status Code */
1519                         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1520                         /* Response Data */
1521                         wpabuf_put_u8(resp, version);
1522                 } else
1523                         wpabuf_put_u8(resp, ',');
1524
1525                 count++;
1526
1527                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1528                            usrv->service);
1529                 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1530                         break;
1531                 wpabuf_put_str(resp, usrv->service);
1532         }
1533         os_free(str);
1534
1535         if (count == 0) {
1536                 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1537                            "available");
1538                 /* Status Code */
1539                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1540                 /* Response Data: empty */
1541         }
1542
1543         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1544 }
1545
1546
1547 void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1548                      u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1549 {
1550         struct wpa_supplicant *wpa_s = ctx;
1551         const u8 *pos = tlvs;
1552         const u8 *end = tlvs + tlvs_len;
1553         const u8 *tlv_end;
1554         u16 slen;
1555         struct wpabuf *resp;
1556         u8 srv_proto, srv_trans_id;
1557         size_t buf_len;
1558         char *buf;
1559
1560         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1561                     tlvs, tlvs_len);
1562         buf_len = 2 * tlvs_len + 1;
1563         buf = os_malloc(buf_len);
1564         if (buf) {
1565                 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1566                 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1567                              MACSTR " %u %u %s",
1568                              freq, MAC2STR(sa), dialog_token, update_indic,
1569                              buf);
1570                 os_free(buf);
1571         }
1572
1573         if (wpa_s->p2p_sd_over_ctrl_iface)
1574                 return; /* to be processed by an external program */
1575
1576         resp = wpabuf_alloc(10000);
1577         if (resp == NULL)
1578                 return;
1579
1580         while (pos + 1 < end) {
1581                 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1582                 slen = WPA_GET_LE16(pos);
1583                 pos += 2;
1584                 if (pos + slen > end || slen < 2) {
1585                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1586                                    "length");
1587                         wpabuf_free(resp);
1588                         return;
1589                 }
1590                 tlv_end = pos + slen;
1591
1592                 srv_proto = *pos++;
1593                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1594                            srv_proto);
1595                 srv_trans_id = *pos++;
1596                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1597                            srv_trans_id);
1598
1599                 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1600                             pos, tlv_end - pos);
1601
1602
1603                 if (wpa_s->force_long_sd) {
1604                         wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1605                                    "response");
1606                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1607                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1608                         goto done;
1609                 }
1610
1611                 switch (srv_proto) {
1612                 case P2P_SERV_ALL_SERVICES:
1613                         wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1614                                    "for all services");
1615                         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1616                             dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1617                                 wpa_printf(MSG_DEBUG, "P2P: No service "
1618                                            "discovery protocols available");
1619                                 wpas_sd_add_proto_not_avail(
1620                                         resp, P2P_SERV_ALL_SERVICES,
1621                                         srv_trans_id);
1622                                 break;
1623                         }
1624                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1625                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1626                         break;
1627                 case P2P_SERV_BONJOUR:
1628                         wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1629                                             pos, tlv_end - pos);
1630                         break;
1631                 case P2P_SERV_UPNP:
1632                         wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1633                                          pos, tlv_end - pos);
1634                         break;
1635                 default:
1636                         wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1637                                    "protocol %u", srv_proto);
1638                         wpas_sd_add_proto_not_avail(resp, srv_proto,
1639                                                     srv_trans_id);
1640                         break;
1641                 }
1642
1643                 pos = tlv_end;
1644         }
1645
1646 done:
1647         wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1648                                    update_indic, tlvs, tlvs_len);
1649
1650         wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1651
1652         wpabuf_free(resp);
1653 }
1654
1655
1656 void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1657                       const u8 *tlvs, size_t tlvs_len)
1658 {
1659         struct wpa_supplicant *wpa_s = ctx;
1660         const u8 *pos = tlvs;
1661         const u8 *end = tlvs + tlvs_len;
1662         const u8 *tlv_end;
1663         u16 slen;
1664         size_t buf_len;
1665         char *buf;
1666
1667         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1668                     tlvs, tlvs_len);
1669         if (tlvs_len > 1500) {
1670                 /* TODO: better way for handling this */
1671                 wpa_msg_ctrl(wpa_s, MSG_INFO,
1672                              P2P_EVENT_SERV_DISC_RESP MACSTR
1673                              " %u <long response: %u bytes>",
1674                              MAC2STR(sa), update_indic,
1675                              (unsigned int) tlvs_len);
1676         } else {
1677                 buf_len = 2 * tlvs_len + 1;
1678                 buf = os_malloc(buf_len);
1679                 if (buf) {
1680                         wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1681                         wpa_msg_ctrl(wpa_s, MSG_INFO,
1682                                      P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1683                                      MAC2STR(sa), update_indic, buf);
1684                         os_free(buf);
1685                 }
1686         }
1687
1688         while (pos < end) {
1689                 u8 srv_proto, srv_trans_id, status;
1690
1691                 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1692                 slen = WPA_GET_LE16(pos);
1693                 pos += 2;
1694                 if (pos + slen > end || slen < 3) {
1695                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1696                                    "length");
1697                         return;
1698                 }
1699                 tlv_end = pos + slen;
1700
1701                 srv_proto = *pos++;
1702                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1703                            srv_proto);
1704                 srv_trans_id = *pos++;
1705                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1706                            srv_trans_id);
1707                 status = *pos++;
1708                 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1709                            status);
1710
1711                 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1712                             pos, tlv_end - pos);
1713
1714                 pos = tlv_end;
1715         }
1716
1717         wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
1718 }
1719
1720
1721 void * wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1722                            const struct wpabuf *tlvs)
1723 {
1724         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1725                 return (void *) wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
1726         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1727                 return NULL;
1728         return p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1729 }
1730
1731
1732 void * wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1733                                 u8 version, const char *query)
1734 {
1735         struct wpabuf *tlvs;
1736         void *ret;
1737
1738         tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1739         if (tlvs == NULL)
1740                 return NULL;
1741         wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1742         wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1743         wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1744         wpabuf_put_u8(tlvs, version);
1745         wpabuf_put_str(tlvs, query);
1746         ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1747         wpabuf_free(tlvs);
1748         return ret;
1749 }
1750
1751
1752 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, void *req)
1753 {
1754         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1755                 return wpa_drv_p2p_sd_cancel_request(wpa_s, (u64) req);
1756         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1757                 return -1;
1758         return p2p_sd_cancel_request(wpa_s->global->p2p, req);
1759 }
1760
1761
1762 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1763                           const u8 *dst, u8 dialog_token,
1764                           const struct wpabuf *resp_tlvs)
1765 {
1766         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1767                 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1768                                         resp_tlvs);
1769                 return;
1770         }
1771         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1772                 return;
1773         p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1774                         resp_tlvs);
1775 }
1776
1777
1778 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1779 {
1780         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1781                 wpa_drv_p2p_service_update(wpa_s);
1782                 return;
1783         }
1784         if (wpa_s->global->p2p)
1785                 p2p_sd_service_update(wpa_s->global->p2p);
1786 }
1787
1788
1789 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1790 {
1791         dl_list_del(&bsrv->list);
1792         wpabuf_free(bsrv->query);
1793         wpabuf_free(bsrv->resp);
1794         os_free(bsrv);
1795 }
1796
1797
1798 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1799 {
1800         dl_list_del(&usrv->list);
1801         os_free(usrv->service);
1802         os_free(usrv);
1803 }
1804
1805
1806 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1807 {
1808         struct p2p_srv_bonjour *bsrv, *bn;
1809         struct p2p_srv_upnp *usrv, *un;
1810
1811         dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1812                               struct p2p_srv_bonjour, list)
1813                 wpas_p2p_srv_bonjour_free(bsrv);
1814
1815         dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1816                               struct p2p_srv_upnp, list)
1817                 wpas_p2p_srv_upnp_free(usrv);
1818
1819         wpas_p2p_sd_service_update(wpa_s);
1820 }
1821
1822
1823 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1824                                  struct wpabuf *query, struct wpabuf *resp)
1825 {
1826         struct p2p_srv_bonjour *bsrv;
1827
1828         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1829         if (bsrv) {
1830                 wpabuf_free(query);
1831                 wpabuf_free(bsrv->resp);
1832                 bsrv->resp = resp;
1833                 return 0;
1834         }
1835
1836         bsrv = os_zalloc(sizeof(*bsrv));
1837         if (bsrv == NULL)
1838                 return -1;
1839         bsrv->query = query;
1840         bsrv->resp = resp;
1841         dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1842
1843         wpas_p2p_sd_service_update(wpa_s);
1844         return 0;
1845 }
1846
1847
1848 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1849                                  const struct wpabuf *query)
1850 {
1851         struct p2p_srv_bonjour *bsrv;
1852
1853         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1854         if (bsrv == NULL)
1855                 return -1;
1856         wpas_p2p_srv_bonjour_free(bsrv);
1857         wpas_p2p_sd_service_update(wpa_s);
1858         return 0;
1859 }
1860
1861
1862 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1863                               const char *service)
1864 {
1865         struct p2p_srv_upnp *usrv;
1866
1867         if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1868                 return 0; /* Already listed */
1869         usrv = os_zalloc(sizeof(*usrv));
1870         if (usrv == NULL)
1871                 return -1;
1872         usrv->version = version;
1873         usrv->service = os_strdup(service);
1874         if (usrv->service == NULL) {
1875                 os_free(usrv);
1876                 return -1;
1877         }
1878         dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1879
1880         wpas_p2p_sd_service_update(wpa_s);
1881         return 0;
1882 }
1883
1884
1885 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1886                               const char *service)
1887 {
1888         struct p2p_srv_upnp *usrv;
1889
1890         usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1891         if (usrv == NULL)
1892                 return -1;
1893         wpas_p2p_srv_upnp_free(usrv);
1894         wpas_p2p_sd_service_update(wpa_s);
1895         return 0;
1896 }
1897
1898
1899 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
1900                                          const u8 *peer, const char *params,
1901                                          unsigned int generated_pin)
1902 {
1903         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
1904                 MAC2STR(peer), generated_pin, params);
1905 }
1906
1907
1908 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1909                                         const u8 *peer, const char *params)
1910 {
1911         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1912                 MAC2STR(peer), params);
1913 }
1914
1915
1916 void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1917                         const u8 *dev_addr, const u8 *pri_dev_type,
1918                         const char *dev_name, u16 supp_config_methods,
1919                         u8 dev_capab, u8 group_capab)
1920 {
1921         struct wpa_supplicant *wpa_s = ctx;
1922         char devtype[WPS_DEV_TYPE_BUFSIZE];
1923         char params[200];
1924         u8 empty_dev_type[8];
1925         unsigned int generated_pin = 0;
1926
1927         if (pri_dev_type == NULL) {
1928                 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1929                 pri_dev_type = empty_dev_type;
1930         }
1931         os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1932                     " pri_dev_type=%s name='%s' config_methods=0x%x "
1933                     "dev_capab=0x%x group_capab=0x%x",
1934                     MAC2STR(dev_addr),
1935                     wps_dev_type_bin2str(pri_dev_type, devtype,
1936                                          sizeof(devtype)),
1937                     dev_name, supp_config_methods, dev_capab, group_capab);
1938         params[sizeof(params) - 1] = '\0';
1939
1940         if (config_methods & WPS_CONFIG_DISPLAY) {
1941                 generated_pin = wps_generate_pin();
1942                 wpas_prov_disc_local_display(wpa_s, peer, params,
1943                                              generated_pin);
1944         } else if (config_methods & WPS_CONFIG_KEYPAD)
1945                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1946         else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1947                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1948                         "%s", MAC2STR(peer), params);
1949
1950         wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
1951                                             P2P_PROV_DISC_SUCCESS,
1952                                             config_methods, generated_pin);
1953 }
1954
1955
1956 void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1957 {
1958         struct wpa_supplicant *wpa_s = ctx;
1959         unsigned int generated_pin = 0;
1960
1961         if (config_methods & WPS_CONFIG_DISPLAY)
1962                 wpas_prov_disc_local_keypad(wpa_s, peer, "");
1963         else if (config_methods & WPS_CONFIG_KEYPAD) {
1964                 generated_pin = wps_generate_pin();
1965                 wpas_prov_disc_local_display(wpa_s, peer, "", generated_pin);
1966         } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1967                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1968                         MAC2STR(peer));
1969
1970         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1971                                             P2P_PROV_DISC_SUCCESS,
1972                                             config_methods, generated_pin);
1973
1974         if (wpa_s->pending_pd_before_join &&
1975             (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1976              os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
1977                 wpa_s->pending_pd_before_join = 0;
1978                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
1979                            "join-existing-group operation");
1980                 wpas_p2p_join_start(wpa_s);
1981         }
1982 }
1983
1984
1985 void wpas_prov_disc_fail(void *ctx, const u8 *peer,
1986                          enum p2p_prov_disc_status status)
1987 {
1988         struct wpa_supplicant *wpa_s = ctx;
1989
1990         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1991                                             status, 0, 0);
1992 }
1993
1994
1995 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1996                                   const u8 *go_dev_addr, const u8 *ssid,
1997                                   size_t ssid_len, int *go, u8 *group_bssid,
1998                                   int *force_freq, int persistent_group)
1999 {
2000         struct wpa_supplicant *wpa_s = ctx;
2001         struct wpa_ssid *s;
2002         u8 cur_bssid[ETH_ALEN];
2003         int res;
2004         struct wpa_supplicant *grp;
2005
2006         if (!persistent_group) {
2007                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2008                            " to join an active group", MAC2STR(sa));
2009                 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2010                     (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2011                      == 0 ||
2012                      os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2013                         wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2014                                    "authorized invitation");
2015                         goto accept_inv;
2016                 }
2017                 /*
2018                  * Do not accept the invitation automatically; notify user and
2019                  * request approval.
2020                  */
2021                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2022         }
2023
2024         grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2025         if (grp) {
2026                 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2027                            "running persistent group");
2028                 if (*go)
2029                         os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2030                 goto accept_inv;
2031         }
2032
2033         if (!wpa_s->conf->persistent_reconnect)
2034                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2035
2036         for (s = wpa_s->conf->ssid; s; s = s->next) {
2037                 if (s->disabled == 2 &&
2038                     os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2039                     s->ssid_len == ssid_len &&
2040                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
2041                         break;
2042         }
2043
2044         if (!s) {
2045                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2046                            " requested reinvocation of an unknown group",
2047                            MAC2STR(sa));
2048                 return P2P_SC_FAIL_UNKNOWN_GROUP;
2049         }
2050
2051         if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2052                 *go = 1;
2053                 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2054                         wpa_printf(MSG_DEBUG, "P2P: The only available "
2055                                    "interface is already in use - reject "
2056                                    "invitation");
2057                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2058                 }
2059                 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2060         } else if (s->mode == WPAS_MODE_P2P_GO) {
2061                 *go = 1;
2062                 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2063                 {
2064                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2065                                    "interface address for the group");
2066                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2067                 }
2068                 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2069                           ETH_ALEN);
2070         }
2071
2072 accept_inv:
2073         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
2074             wpa_s->assoc_freq) {
2075                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2076                            "the channel we are already using");
2077                 *force_freq = wpa_s->assoc_freq;
2078         }
2079
2080         res = wpa_drv_shared_freq(wpa_s);
2081         if (res > 0) {
2082                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2083                            "with the channel we are already using on a "
2084                            "shared interface");
2085                 *force_freq = res;
2086         }
2087
2088         return P2P_SC_SUCCESS;
2089 }
2090
2091
2092 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2093                                      const u8 *ssid, size_t ssid_len,
2094                                      const u8 *go_dev_addr, u8 status,
2095                                      int op_freq)
2096 {
2097         struct wpa_supplicant *wpa_s = ctx;
2098         struct wpa_ssid *s;
2099
2100         for (s = wpa_s->conf->ssid; s; s = s->next) {
2101                 if (s->disabled == 2 &&
2102                     s->ssid_len == ssid_len &&
2103                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
2104                         break;
2105         }
2106
2107         if (status == P2P_SC_SUCCESS) {
2108                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2109                            " was accepted; op_freq=%d MHz",
2110                            MAC2STR(sa), op_freq);
2111                 if (s) {
2112                         wpas_p2p_group_add_persistent(
2113                                 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
2114                 } else if (bssid) {
2115                         wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2116                                       wpa_s->p2p_wps_method);
2117                 }
2118                 return;
2119         }
2120
2121         if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2122                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2123                            " was rejected (status %u)", MAC2STR(sa), status);
2124                 return;
2125         }
2126
2127         if (!s) {
2128                 if (bssid) {
2129                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2130                                 "sa=" MACSTR " go_dev_addr=" MACSTR
2131                                 " bssid=" MACSTR " unknown-network",
2132                                 MAC2STR(sa), MAC2STR(go_dev_addr),
2133                                 MAC2STR(bssid));
2134                 } else {
2135                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2136                                 "sa=" MACSTR " go_dev_addr=" MACSTR
2137                                 " unknown-network",
2138                                 MAC2STR(sa), MAC2STR(go_dev_addr));
2139                 }
2140                 return;
2141         }
2142
2143         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
2144                 " persistent=%d", MAC2STR(sa), s->id);
2145 }
2146
2147
2148 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
2149 {
2150         struct wpa_supplicant *wpa_s = ctx;
2151         struct wpa_ssid *ssid;
2152
2153         if (bssid) {
2154                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2155                         "status=%d " MACSTR,
2156                         status, MAC2STR(bssid));
2157         } else {
2158                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2159                         "status=%d ", status);
2160         }
2161         wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2162
2163         if (wpa_s->pending_invite_ssid_id == -1)
2164                 return; /* Invitation to active group */
2165
2166         if (status != P2P_SC_SUCCESS) {
2167                 wpas_p2p_remove_pending_group_interface(wpa_s);
2168                 return;
2169         }
2170
2171         ssid = wpa_config_get_network(wpa_s->conf,
2172                                       wpa_s->pending_invite_ssid_id);
2173         if (ssid == NULL) {
2174                 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2175                            "data matching with invitation");
2176                 return;
2177         }
2178
2179         wpas_p2p_group_add_persistent(wpa_s, ssid,
2180                                       ssid->mode == WPAS_MODE_P2P_GO, 0);
2181 }
2182
2183
2184 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2185                                      struct p2p_channels *chan)
2186 {
2187         int i, cla = 0;
2188
2189         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2190                    "band");
2191
2192         /* Operating class 81 - 2.4 GHz band channels 1..13 */
2193         chan->reg_class[cla].reg_class = 81;
2194         chan->reg_class[cla].channels = 11;
2195         for (i = 0; i < 11; i++)
2196                 chan->reg_class[cla].channel[i] = i + 1;
2197         cla++;
2198
2199         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2200                    "band");
2201
2202         /* Operating class 115 - 5 GHz, channels 36-48 */
2203         chan->reg_class[cla].reg_class = 115;
2204         chan->reg_class[cla].channels = 4;
2205         chan->reg_class[cla].channel[0] = 36;
2206         chan->reg_class[cla].channel[1] = 40;
2207         chan->reg_class[cla].channel[2] = 44;
2208         chan->reg_class[cla].channel[3] = 48;
2209         cla++;
2210
2211         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2212                    "band");
2213
2214         /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2215         chan->reg_class[cla].reg_class = 124;
2216         chan->reg_class[cla].channels = 4;
2217         chan->reg_class[cla].channel[0] = 149;
2218         chan->reg_class[cla].channel[1] = 153;
2219         chan->reg_class[cla].channel[2] = 157;
2220         chan->reg_class[cla].channel[3] = 161;
2221         cla++;
2222
2223         chan->reg_classes = cla;
2224         return 0;
2225 }
2226
2227
2228 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2229                                           u16 num_modes,
2230                                           enum hostapd_hw_mode mode)
2231 {
2232         u16 i;
2233
2234         for (i = 0; i < num_modes; i++) {
2235                 if (modes[i].mode == mode)
2236                         return &modes[i];
2237         }
2238
2239         return NULL;
2240 }
2241
2242
2243 static int has_channel(struct hostapd_hw_modes *mode, u8 chan, int *flags)
2244 {
2245         int i;
2246
2247         for (i = 0; i < mode->num_channels; i++) {
2248                 if (mode->channels[i].chan == chan) {
2249                         if (flags)
2250                                 *flags = mode->channels[i].flag;
2251                         return !(mode->channels[i].flag &
2252                                  (HOSTAPD_CHAN_DISABLED |
2253                                   HOSTAPD_CHAN_PASSIVE_SCAN |
2254                                   HOSTAPD_CHAN_NO_IBSS |
2255                                   HOSTAPD_CHAN_RADAR));
2256                 }
2257         }
2258
2259         return 0;
2260 }
2261
2262
2263 struct p2p_oper_class_map {
2264         enum hostapd_hw_mode mode;
2265         u8 op_class;
2266         u8 min_chan;
2267         u8 max_chan;
2268         u8 inc;
2269         enum { BW20, BW40PLUS, BW40MINUS } bw;
2270 };
2271
2272 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
2273                                    struct p2p_channels *chan)
2274 {
2275         struct hostapd_hw_modes *modes, *mode;
2276         u16 num_modes, flags;
2277         int cla, op;
2278         struct p2p_oper_class_map op_class[] = {
2279                 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2280                 { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 },
2281 #if 0 /* Do not enable HT40 on 2 GHz for now */
2282                 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2283                 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2284 #endif
2285                 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2286                 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2287                 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2288                 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2289                 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2290                 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2291                 { -1, 0, 0, 0, 0, BW20 }
2292         };
2293
2294         modes = wpa_drv_get_hw_feature_data(wpa_s, &num_modes, &flags);
2295         if (modes == NULL) {
2296                 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2297                            "of all supported channels; assume dualband "
2298                            "support");
2299                 return wpas_p2p_default_channels(wpa_s, chan);
2300         }
2301
2302         cla = 0;
2303
2304         for (op = 0; op_class[op].op_class; op++) {
2305                 struct p2p_oper_class_map *o = &op_class[op];
2306                 u8 ch;
2307                 struct p2p_reg_class *reg = NULL;
2308
2309                 mode = get_mode(modes, num_modes, o->mode);
2310                 if (mode == NULL)
2311                         continue;
2312                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2313                         int flag;
2314                         if (!has_channel(mode, ch, &flag))
2315                                 continue;
2316                         if (o->bw == BW40MINUS &&
2317                             (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2318                              !has_channel(mode, ch - 4, NULL)))
2319                                 continue;
2320                         if (o->bw == BW40PLUS &&
2321                             (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2322                              !has_channel(mode, ch + 4, NULL)))
2323                                 continue;
2324                         if (reg == NULL) {
2325                                 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2326                                            "class %u", o->op_class);
2327                                 reg = &chan->reg_class[cla];
2328                                 cla++;
2329                                 reg->reg_class = o->op_class;
2330                         }
2331                         reg->channel[reg->channels] = ch;
2332                         reg->channels++;
2333                 }
2334                 if (reg) {
2335                         wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2336                                     reg->channel, reg->channels);
2337                 }
2338         }
2339
2340         chan->reg_classes = cla;
2341
2342         ieee80211_sta_free_hw_features(modes, num_modes);
2343
2344         return 0;
2345 }
2346
2347
2348 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2349                         size_t buf_len)
2350 {
2351         struct wpa_supplicant *wpa_s = ctx;
2352
2353         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2354                 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2355                         break;
2356         }
2357         if (wpa_s == NULL)
2358                 return -1;
2359
2360         return wpa_drv_get_noa(wpa_s, buf, buf_len);
2361 }
2362
2363
2364 /**
2365  * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2366  * @global: Pointer to global data from wpa_supplicant_init()
2367  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2368  * Returns: 0 on success, -1 on failure
2369  */
2370 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2371 {
2372         struct p2p_config p2p;
2373         unsigned int r;
2374         int i;
2375 #ifdef ANDROID_BRCM_P2P_PATCH
2376         char buf[200];
2377 #endif
2378
2379         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2380                 return 0;
2381
2382 #ifdef CONFIG_CLIENT_MLME
2383         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)) {
2384                 wpa_s->mlme.public_action_cb = p2p_rx_action_mlme;
2385                 wpa_s->mlme.public_action_cb_ctx = wpa_s;
2386         }
2387 #endif /* CONFIG_CLIENT_MLME */
2388
2389         if (wpa_drv_disable_11b_rates(wpa_s, 1) < 0) {
2390                 wpa_printf(MSG_DEBUG, "P2P: Failed to disable 11b rates");
2391                 /* Continue anyway; this is not really a fatal error */
2392         }
2393
2394         if (global->p2p)
2395                 return 0;
2396
2397         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2398                 struct p2p_params params;
2399
2400                 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2401                 os_memset(&params, 0, sizeof(params));
2402                 params.dev_name = wpa_s->conf->device_name;
2403                 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2404                           WPS_DEV_TYPE_LEN);
2405                 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2406                 os_memcpy(params.sec_dev_type,
2407                           wpa_s->conf->sec_device_type,
2408                           params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2409
2410                 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
2411                         return -1;
2412
2413                 return 0;
2414         }
2415
2416         os_memset(&p2p, 0, sizeof(p2p));
2417         p2p.msg_ctx = wpa_s;
2418         p2p.cb_ctx = wpa_s;
2419         p2p.p2p_scan = wpas_p2p_scan;
2420         p2p.send_action = wpas_send_action;
2421         p2p.send_action_done = wpas_send_action_done;
2422         p2p.go_neg_completed = wpas_go_neg_completed;
2423         p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2424         p2p.dev_found = wpas_dev_found;
2425         p2p.dev_lost = wpas_dev_lost;
2426         p2p.start_listen = wpas_start_listen;
2427         p2p.stop_listen = wpas_stop_listen;
2428         p2p.send_probe_resp = wpas_send_probe_resp;
2429         p2p.sd_request = wpas_sd_request;
2430         p2p.sd_response = wpas_sd_response;
2431         p2p.prov_disc_req = wpas_prov_disc_req;
2432         p2p.prov_disc_resp = wpas_prov_disc_resp;
2433         p2p.prov_disc_fail = wpas_prov_disc_fail;
2434         p2p.invitation_process = wpas_invitation_process;
2435         p2p.invitation_received = wpas_invitation_received;
2436         p2p.invitation_result = wpas_invitation_result;
2437         p2p.get_noa = wpas_get_noa;
2438
2439 #ifdef ANDROID_BRCM_P2P_PATCH
2440         /* P2P_ADDR: Using p2p_dev_addr to hold the actual p2p device address incase if
2441          * we are not using the primary interface for p2p operations.
2442          */
2443         wpa_drv_driver_cmd(wpa_s,  "P2P_DEV_ADDR", buf, sizeof(buf));
2444         os_memcpy(p2p.p2p_dev_addr, buf, ETH_ALEN);
2445         os_memcpy(wpa_s->global->p2p_dev_addr, buf, ETH_ALEN);
2446         os_memcpy(p2p.dev_addr, buf, ETH_ALEN);
2447         wpa_printf(MSG_DEBUG, "P2P: Device address ("MACSTR")", MAC2STR(p2p.p2p_dev_addr));
2448 #else
2449         os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2450 #endif
2451
2452         os_memcpy(p2p.dev_addr, wpa_s->own_addr, ETH_ALEN);
2453         p2p.dev_name = wpa_s->conf->device_name;
2454         p2p.manufacturer = wpa_s->conf->manufacturer;
2455         p2p.model_name = wpa_s->conf->model_name;
2456         p2p.model_number = wpa_s->conf->model_number;
2457         p2p.serial_number = wpa_s->conf->serial_number;
2458         if (wpa_s->wps) {
2459                 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2460                 p2p.config_methods = wpa_s->wps->config_methods;
2461         }
2462
2463         if (wpa_s->conf->p2p_listen_reg_class &&
2464             wpa_s->conf->p2p_listen_channel) {
2465                 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2466                 p2p.channel = wpa_s->conf->p2p_listen_channel;
2467         } else {
2468                 p2p.reg_class = 81;
2469                 /*
2470                  * Pick one of the social channels randomly as the listen
2471                  * channel.
2472                  */
2473                 os_get_random((u8 *) &r, sizeof(r));
2474                 p2p.channel = 1 + (r % 3) * 5;
2475         }
2476         wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
2477
2478         if (wpa_s->conf->p2p_oper_reg_class &&
2479             wpa_s->conf->p2p_oper_channel) {
2480                 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2481                 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2482                 p2p.cfg_op_channel = 1;
2483                 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2484                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
2485
2486         } else {
2487                 p2p.op_reg_class = 81;
2488                 /*
2489                  * Use random operation channel from (1, 6, 11) if no other
2490                  * preference is indicated.
2491                  */
2492                 os_get_random((u8 *) &r, sizeof(r));
2493                 p2p.op_channel = 1 + (r % 3) * 5;
2494                 p2p.cfg_op_channel = 0;
2495                 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2496                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
2497         }
2498         if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2499                 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2500                 p2p.country[2] = 0x04;
2501         } else
2502                 os_memcpy(p2p.country, "XX\x04", 3);
2503
2504         if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
2505                 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2506                            "channel list");
2507                 return -1;
2508         }
2509
2510         os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2511                   WPS_DEV_TYPE_LEN);
2512
2513         p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2514         os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2515                   p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2516
2517         p2p.concurrent_operations = !!(wpa_s->drv_flags &
2518                                        WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2519
2520         p2p.max_peers = 100;
2521
2522         if (wpa_s->conf->p2p_ssid_postfix) {
2523                 p2p.ssid_postfix_len =
2524                         os_strlen(wpa_s->conf->p2p_ssid_postfix);
2525                 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2526                         p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2527                 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2528                           p2p.ssid_postfix_len);
2529         }
2530
2531         p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2532
2533         global->p2p = p2p_init(&p2p);
2534         if (global->p2p == NULL)
2535                 return -1;
2536
2537         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2538                 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2539                         continue;
2540                 p2p_add_wps_vendor_extension(
2541                         global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2542         }
2543
2544         return 0;
2545 }
2546
2547
2548 /**
2549  * wpas_p2p_deinit - Deinitialize per-interface P2P data
2550  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2551  *
2552  * This function deinitialize per-interface P2P data.
2553  */
2554 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2555 {
2556         if (wpa_s->driver && wpa_s->drv_priv)
2557                 wpa_drv_probe_req_report(wpa_s, 0);
2558         os_free(wpa_s->go_params);
2559         wpa_s->go_params = NULL;
2560         wpabuf_free(wpa_s->pending_action_tx);
2561         wpa_s->pending_action_tx = NULL;
2562         eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
2563         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2564         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2565         wpa_s->p2p_long_listen = 0;
2566         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2567         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
2568         wpas_p2p_remove_pending_group_interface(wpa_s);
2569
2570         /* TODO: remove group interface from the driver if this wpa_s instance
2571          * is on top of a P2P group interface */
2572 }
2573
2574
2575 /**
2576  * wpas_p2p_deinit_global - Deinitialize global P2P module
2577  * @global: Pointer to global data from wpa_supplicant_init()
2578  *
2579  * This function deinitializes the global (per device) P2P module.
2580  */
2581 void wpas_p2p_deinit_global(struct wpa_global *global)
2582 {
2583         struct wpa_supplicant *wpa_s, *tmp;
2584         char *ifname;
2585
2586         if (global->p2p == NULL)
2587                 return;
2588
2589         /* Remove remaining P2P group interfaces */
2590         wpa_s = global->ifaces;
2591         if (wpa_s)
2592                 wpas_p2p_service_flush(wpa_s);
2593         while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2594                 wpa_s = wpa_s->next;
2595         while (wpa_s) {
2596                 enum wpa_driver_if_type type;
2597                 tmp = global->ifaces;
2598                 while (tmp &&
2599                        (tmp == wpa_s ||
2600                         tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2601                         tmp = tmp->next;
2602                 }
2603                 if (tmp == NULL)
2604                         break;
2605                 ifname = os_strdup(tmp->ifname);
2606                 type = wpas_p2p_if_type(tmp->p2p_group_interface);
2607                 wpa_supplicant_remove_iface(global, tmp, 0);
2608                 if (ifname)
2609                         wpa_drv_if_remove(wpa_s, type, ifname);
2610                 os_free(ifname);
2611         }
2612
2613         /*
2614          * Deinit GO data on any possibly remaining interface (if main
2615          * interface is used as GO).
2616          */
2617         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2618                 if (wpa_s->ap_iface)
2619                         wpas_p2p_group_deinit(wpa_s);
2620         }
2621
2622         p2p_deinit(global->p2p);
2623         global->p2p = NULL;
2624 }
2625
2626
2627 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2628 {
2629         if (wpa_s->drv_flags &
2630             (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2631              WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
2632                 return 1; /* P2P group requires a new interface in every case
2633                            */
2634         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2635                 return 0; /* driver does not support concurrent operations */
2636         if (wpa_s->global->ifaces->next)
2637                 return 1; /* more that one interface already in use */
2638         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2639                 return 1; /* this interface is already in use */
2640         return 0;
2641 }
2642
2643
2644 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2645                                  const u8 *peer_addr,
2646                                  enum p2p_wps_method wps_method,
2647                                  int go_intent, const u8 *own_interface_addr,
2648                                  unsigned int force_freq, int persistent_group)
2649 {
2650         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2651                 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2652                                            go_intent, own_interface_addr,
2653                                            force_freq, persistent_group);
2654         }
2655
2656         return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2657                            go_intent, own_interface_addr, force_freq,
2658                            persistent_group);
2659 }
2660
2661
2662 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2663                                 const u8 *peer_addr,
2664                                 enum p2p_wps_method wps_method,
2665                                 int go_intent, const u8 *own_interface_addr,
2666                                 unsigned int force_freq, int persistent_group)
2667 {
2668         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2669                 return -1;
2670
2671         return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2672                              go_intent, own_interface_addr, force_freq,
2673                              persistent_group);
2674 }
2675
2676
2677 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
2678 {
2679         wpa_s->p2p_join_scan_count++;
2680         wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
2681                    wpa_s->p2p_join_scan_count);
2682         if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
2683                 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
2684                            " for join operationg - stop join attempt",
2685                            MAC2STR(wpa_s->pending_join_iface_addr));
2686                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2687                 wpa_msg(wpa_s->parent, MSG_INFO,
2688                         P2P_EVENT_GROUP_FORMATION_FAILURE);
2689         }
2690 }
2691
2692
2693 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2694                                    struct wpa_scan_results *scan_res)
2695 {
2696         struct wpa_bss *bss;
2697         int freq;
2698         u8 iface_addr[ETH_ALEN];
2699
2700         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2701
2702         if (wpa_s->global->p2p_disabled)
2703                 return;
2704
2705         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2706                    scan_res ? (int) scan_res->num : -1);
2707
2708         if (scan_res)
2709                 wpas_p2p_scan_res_handler(wpa_s, scan_res);
2710
2711         freq = p2p_get_oper_freq(wpa_s->global->p2p,
2712                                  wpa_s->pending_join_iface_addr);
2713         if (freq < 0 &&
2714             p2p_get_interface_addr(wpa_s->global->p2p,
2715                                    wpa_s->pending_join_dev_addr,
2716                                    iface_addr) == 0 &&
2717             os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
2718         {
2719                 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
2720                            "address for join from " MACSTR " to " MACSTR
2721                            " based on newly discovered P2P peer entry",
2722                            MAC2STR(wpa_s->pending_join_iface_addr),
2723                            MAC2STR(iface_addr));
2724                 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
2725                           ETH_ALEN);
2726
2727                 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2728                                          wpa_s->pending_join_iface_addr);
2729         }
2730         if (freq >= 0) {
2731                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2732                            "from P2P peer table: %d MHz", freq);
2733         }
2734         bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
2735         if (bss) {
2736                 freq = bss->freq;
2737                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2738                            "from BSS table: %d MHz", freq);
2739         }
2740         if (freq > 0) {
2741                 u16 method;
2742
2743                 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2744                            "prior to joining an existing group (GO " MACSTR
2745                            " freq=%u MHz)",
2746                            MAC2STR(wpa_s->pending_join_dev_addr), freq);
2747                 wpa_s->pending_pd_before_join = 1;
2748
2749                 switch (wpa_s->pending_join_wps_method) {
2750                 case WPS_PIN_LABEL:
2751                 case WPS_PIN_DISPLAY:
2752                         method = WPS_CONFIG_KEYPAD;
2753                         break;
2754                 case WPS_PIN_KEYPAD:
2755                         method = WPS_CONFIG_DISPLAY;
2756                         break;
2757                 case WPS_PBC:
2758                         method = WPS_CONFIG_PUSHBUTTON;
2759                         break;
2760                 default:
2761                         method = 0;
2762                         break;
2763                 }
2764
2765                 if (p2p_prov_disc_req(wpa_s->global->p2p,
2766                                       wpa_s->pending_join_dev_addr, method, 1)
2767                     < 0) {
2768                         wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2769                                    "Discovery Request before joining an "
2770                                    "existing group");
2771                         wpa_s->pending_pd_before_join = 0;
2772                         goto start;
2773                 }
2774
2775                 /*
2776                  * Actual join operation will be started from the Action frame
2777                  * TX status callback.
2778                  */
2779                 return;
2780         }
2781
2782         wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
2783         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2784         eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2785         wpas_p2p_check_join_scan_limit(wpa_s);
2786         return;
2787
2788 start:
2789         /* Start join operation immediately */
2790         wpas_p2p_join_start(wpa_s);
2791 }
2792
2793
2794 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2795 {
2796         struct wpa_supplicant *wpa_s = eloop_ctx;
2797         int ret;
2798         struct wpa_driver_scan_params params;
2799         struct wpabuf *wps_ie, *ies;
2800
2801         os_memset(&params, 0, sizeof(params));
2802
2803         /* P2P Wildcard SSID */
2804         params.num_ssids = 1;
2805         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2806         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2807
2808         wpa_s->wps->dev.p2p = 1;
2809         wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
2810                                         WPS_REQ_ENROLLEE, 0, NULL);
2811         if (wps_ie == NULL) {
2812                 wpas_p2p_scan_res_join(wpa_s, NULL);
2813                 return;
2814         }
2815
2816         ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
2817         if (ies == NULL) {
2818                 wpabuf_free(wps_ie);
2819                 wpas_p2p_scan_res_join(wpa_s, NULL);
2820                 return;
2821         }
2822         wpabuf_put_buf(ies, wps_ie);
2823         wpabuf_free(wps_ie);
2824
2825         p2p_scan_ie(wpa_s->global->p2p, ies);
2826
2827         params.extra_ies = wpabuf_head(ies);
2828         params.extra_ies_len = wpabuf_len(ies);
2829
2830         /*
2831          * Run a scan to update BSS table and start Provision Discovery once
2832          * the new scan results become available.
2833          */
2834         wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
2835         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
2836                 ret = ieee80211_sta_req_scan(wpa_s, &params);
2837         else
2838                 ret = wpa_drv_scan(wpa_s, &params);
2839
2840         wpabuf_free(ies);
2841
2842         if (ret) {
2843                 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2844                            "try again later");
2845                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2846                 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2847                 wpas_p2p_check_join_scan_limit(wpa_s);
2848         }
2849 }
2850
2851
2852 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2853                          const u8 *dev_addr, enum p2p_wps_method wps_method)
2854 {
2855         wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2856                    MACSTR " dev " MACSTR ")",
2857                    MAC2STR(iface_addr), MAC2STR(dev_addr));
2858
2859         os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2860         os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2861         wpa_s->pending_join_wps_method = wps_method;
2862
2863         /* Make sure we are not running find during connection establishment */
2864         wpas_p2p_stop_find(wpa_s);
2865
2866         wpa_s->p2p_join_scan_count = 0;
2867         wpas_p2p_join_scan(wpa_s, NULL);
2868         return 0;
2869 }
2870
2871
2872 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2873 {
2874         struct wpa_supplicant *group;
2875         struct p2p_go_neg_results res;
2876
2877         group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2878         if (group == NULL)
2879                 return -1;
2880         if (group != wpa_s) {
2881                 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2882                           sizeof(group->p2p_pin));
2883                 group->p2p_wps_method = wpa_s->p2p_wps_method;
2884         }
2885
2886         group->p2p_in_provisioning = 1;
2887
2888         os_memset(&res, 0, sizeof(res));
2889         os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2890                   ETH_ALEN);
2891         res.wps_method = wpa_s->pending_join_wps_method;
2892         wpas_start_wps_enrollee(group, &res);
2893
2894         /*
2895          * Allow a longer timeout for join-a-running-group than normal 15
2896          * second group formation timeout since the GO may not have authorized
2897          * our connection yet.
2898          */
2899         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2900         eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
2901                                wpa_s, NULL);
2902
2903         return 0;
2904 }
2905
2906
2907 /**
2908  * wpas_p2p_connect - Request P2P Group Formation to be started
2909  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2910  * @peer_addr: Address of the peer P2P Device
2911  * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2912  * @persistent_group: Whether to create a persistent group
2913  * @join: Whether to join an existing group (as a client) instead of starting
2914  *      Group Owner negotiation; @peer_addr is BSSID in that case
2915  * @auth: Whether to only authorize the connection instead of doing that and
2916  *      initiating Group Owner negotiation
2917  * @go_intent: GO Intent or -1 to use default
2918  * @freq: Frequency for the group or 0 for auto-selection
2919  * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
2920  *      failure, -2 on failure due to channel not currently available,
2921  *      -3 if forced channel is not supported
2922  */
2923 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2924                      const char *pin, enum p2p_wps_method wps_method,
2925                      int persistent_group, int join, int auth, int go_intent,
2926                      int freq)
2927 {
2928         int force_freq = 0, oper_freq = 0;
2929         u8 bssid[ETH_ALEN];
2930         int ret = 0;
2931         enum wpa_driver_if_type iftype;
2932
2933         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2934                 return -1;
2935
2936         if (go_intent < 0)
2937                 go_intent = wpa_s->conf->p2p_go_intent;
2938
2939         if (!auth)
2940                 wpa_s->p2p_long_listen = 0;
2941
2942         wpa_s->p2p_wps_method = wps_method;
2943
2944         if (pin)
2945                 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2946         else if (wps_method == WPS_PIN_DISPLAY) {
2947                 ret = wps_generate_pin();
2948                 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2949                             ret);
2950                 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2951                            wpa_s->p2p_pin);
2952         } else
2953                 wpa_s->p2p_pin[0] = '\0';
2954
2955         if (join) {
2956                 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
2957                 if (auth) {
2958                         wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2959                                    "connect a running group from " MACSTR,
2960                                    MAC2STR(peer_addr));
2961                         os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2962                         return ret;
2963                 }
2964                 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
2965                 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
2966                                            iface_addr) < 0) {
2967                         os_memcpy(iface_addr, peer_addr, ETH_ALEN);
2968                         p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
2969                                          dev_addr);
2970                 }
2971                 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) <
2972                     0)
2973                         return -1;
2974                 return ret;
2975         }
2976
2977         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2978             wpa_s->assoc_freq)
2979                 oper_freq = wpa_s->assoc_freq;
2980         else {
2981                 oper_freq = wpa_drv_shared_freq(wpa_s);
2982                 if (oper_freq < 0)
2983                         oper_freq = 0;
2984         }
2985
2986         if (freq > 0) {
2987                 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
2988                         wpa_printf(MSG_DEBUG, "P2P: The forced channel "
2989                                    "(%u MHz) is not supported for P2P uses",
2990                                    freq);
2991                         return -3;
2992                 }
2993
2994                 if (oper_freq > 0 && freq != oper_freq &&
2995                     !(wpa_s->drv_flags &
2996                       WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2997                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2998                                    "on %u MHz while connected on another "
2999                                    "channel (%u MHz)", freq, oper_freq);
3000                         return -2;
3001                 }
3002                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3003                            "requested channel (%u MHz)", freq);
3004                 force_freq = freq;
3005         } else if (oper_freq > 0 &&
3006                    !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
3007                 if (!(wpa_s->drv_flags &
3008                       WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3009                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3010                                    "while connected on non-P2P supported "
3011                                    "channel (%u MHz)", oper_freq);
3012                         return -2;
3013                 }
3014                 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
3015                            "(%u MHz) not available for P2P - try to use "
3016                            "another channel", oper_freq);
3017                 force_freq = 0;
3018         } else if (oper_freq > 0) {
3019                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3020                            "channel we are already using (%u MHz) on another "
3021                            "interface", oper_freq);
3022                 force_freq = oper_freq;
3023         }
3024
3025         wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
3026
3027         if (!wpa_s->create_p2p_iface) {
3028                 if (auth) {
3029                         if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
3030                                                  go_intent, wpa_s->own_addr,
3031                                                  force_freq, persistent_group)
3032                             < 0)
3033                                 return -1;
3034                         return ret;
3035                 }
3036                 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
3037                                           go_intent, wpa_s->own_addr,
3038                                           force_freq, persistent_group) < 0)
3039                         return -1;
3040                 return ret;
3041         }
3042
3043         /* Prepare to add a new interface for the group */
3044         iftype = WPA_IF_P2P_GROUP;
3045         if (join)
3046                 iftype = WPA_IF_P2P_CLIENT;
3047         else if (go_intent == 15)
3048                 iftype = WPA_IF_P2P_GO;
3049         if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
3050                 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3051                            "interface for the group");
3052                 return -1;
3053         }
3054
3055         if (auth) {
3056                 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
3057                                          go_intent,
3058                                          wpa_s->pending_interface_addr,
3059                                          force_freq, persistent_group) < 0)
3060                         return -1;
3061                 return ret;
3062         }
3063         if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method, go_intent,
3064                                   wpa_s->pending_interface_addr,
3065                                   force_freq, persistent_group) < 0) {
3066                 wpas_p2p_remove_pending_group_interface(wpa_s);
3067                 return -1;
3068         }
3069         return ret;
3070 }
3071
3072
3073 /**
3074  * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
3075  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3076  * @freq: Frequency of the channel in MHz
3077  * @duration: Duration of the stay on the channel in milliseconds
3078  *
3079  * This callback is called when the driver indicates that it has started the
3080  * requested remain-on-channel duration.
3081  */
3082 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3083                                    unsigned int freq, unsigned int duration)
3084 {
3085         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3086                 return;
3087         wpa_s->roc_waiting_drv_freq = 0;
3088         wpa_s->off_channel_freq = freq;
3089         wpas_send_action_cb(wpa_s, NULL);
3090         if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
3091                 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
3092                               wpa_s->pending_listen_duration);
3093                 wpa_s->pending_listen_freq = 0;
3094         }
3095 }
3096
3097
3098 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
3099                                  unsigned int timeout)
3100 {
3101         /* Limit maximum Listen state time based on driver limitation. */
3102         if (timeout > wpa_s->max_remain_on_chan)
3103                 timeout = wpa_s->max_remain_on_chan;
3104
3105         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3106                 return wpa_drv_p2p_listen(wpa_s, timeout);
3107
3108         return p2p_listen(wpa_s->global->p2p, timeout);
3109 }
3110
3111
3112 /**
3113  * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3114  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3115  * @freq: Frequency of the channel in MHz
3116  *
3117  * This callback is called when the driver indicates that a remain-on-channel
3118  * operation has been completed, i.e., the duration on the requested channel
3119  * has timed out.
3120  */
3121 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3122                                           unsigned int freq)
3123 {
3124         wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
3125                    "(p2p_long_listen=%d ms pending_action_tx=%p)",
3126                    wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
3127         wpa_s->off_channel_freq = 0;
3128         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3129                 return;
3130         if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
3131                 return; /* P2P module started a new operation */
3132         if (wpa_s->pending_action_tx)
3133                 return;
3134         if (wpa_s->p2p_long_listen > 0)
3135                 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
3136         if (wpa_s->p2p_long_listen > 0) {
3137                 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
3138                 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
3139         }
3140 }
3141
3142
3143 /**
3144  * wpas_p2p_group_remove - Remove a P2P group
3145  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3146  * @ifname: Network interface name of the group interface or "*" to remove all
3147  *      groups
3148  * Returns: 0 on success, -1 on failure
3149  *
3150  * This function is used to remove a P2P group. This can be used to disconnect
3151  * from a group in which the local end is a P2P Client or to end a P2P Group in
3152  * case the local end is the Group Owner. If a virtual network interface was
3153  * created for this group, that interface will be removed. Otherwise, only the
3154  * configured P2P group network will be removed from the interface.
3155  */
3156 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
3157 {
3158         struct wpa_global *global = wpa_s->global;
3159
3160         if (os_strcmp(ifname, "*") == 0) {
3161                 struct wpa_supplicant *prev;
3162                 wpa_s = global->ifaces;
3163                 while (wpa_s) {
3164                         prev = wpa_s;
3165                         wpa_s = wpa_s->next;
3166                         wpas_p2p_disconnect(prev);
3167                 }
3168                 return 0;
3169         }
3170
3171         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3172                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3173                         break;
3174         }
3175
3176         return wpas_p2p_disconnect(wpa_s);
3177 }
3178
3179
3180 static void wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
3181                                     struct p2p_go_neg_results *params,
3182                                     int freq)
3183 {
3184         u8 bssid[ETH_ALEN];
3185         int res;
3186
3187         os_memset(params, 0, sizeof(*params));
3188         params->role_go = 1;
3189         if (freq) {
3190                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
3191                            "frequency %d MHz", freq);
3192                 params->freq = freq;
3193         } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
3194                    wpa_s->conf->p2p_oper_channel >= 1 &&
3195                    wpa_s->conf->p2p_oper_channel <= 11) {
3196                 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
3197                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3198                            "frequency %d MHz", params->freq);
3199         } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
3200                    wpa_s->conf->p2p_oper_reg_class == 124) {
3201                 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
3202                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3203                            "frequency %d MHz", params->freq);
3204         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3205                    wpa_s->best_overall_freq > 0 &&
3206                    p2p_supported_freq(wpa_s->global->p2p,
3207                                       wpa_s->best_overall_freq)) {
3208                 params->freq = wpa_s->best_overall_freq;
3209                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
3210                            "channel %d MHz", params->freq);
3211         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3212                    wpa_s->best_24_freq > 0 &&
3213                    p2p_supported_freq(wpa_s->global->p2p,
3214                                       wpa_s->best_24_freq)) {
3215                 params->freq = wpa_s->best_24_freq;
3216                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
3217                            "channel %d MHz", params->freq);
3218         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3219                    wpa_s->best_5_freq > 0 &&
3220                    p2p_supported_freq(wpa_s->global->p2p,
3221                                       wpa_s->best_5_freq)) {
3222                 params->freq = wpa_s->best_5_freq;
3223                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
3224                            "channel %d MHz", params->freq);
3225         } else {
3226                 params->freq = 2412;
3227                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
3228                            "known)", params->freq);
3229         }
3230
3231         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3232             wpa_s->assoc_freq && !freq) {
3233                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3234                            "already using");
3235                 params->freq = wpa_s->assoc_freq;
3236         }
3237
3238         res = wpa_drv_shared_freq(wpa_s);
3239         if (res > 0 && !freq) {
3240                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3241                            "already using on a shared interface");
3242                 params->freq = res;
3243         }
3244 }
3245
3246
3247 static struct wpa_supplicant *
3248 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3249                          int go)
3250 {
3251         struct wpa_supplicant *group_wpa_s;
3252
3253         if (!wpas_p2p_create_iface(wpa_s))
3254                 return wpa_s;
3255
3256         if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3257                                          WPA_IF_P2P_CLIENT) < 0)
3258                 return NULL;
3259         group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3260         if (group_wpa_s == NULL) {
3261                 wpas_p2p_remove_pending_group_interface(wpa_s);
3262                 return NULL;
3263         }
3264
3265         return group_wpa_s;
3266 }
3267
3268
3269 /**
3270  * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3271  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3272  * @persistent_group: Whether to create a persistent group
3273  * @freq: Frequency for the group or 0 to indicate no hardcoding
3274  * Returns: 0 on success, -1 on failure
3275  *
3276  * This function creates a new P2P group with the local end as the Group Owner,
3277  * i.e., without using Group Owner Negotiation.
3278  */
3279 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
3280                        int freq)
3281 {
3282         struct p2p_go_neg_results params;
3283         unsigned int r;
3284
3285         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3286                 return -1;
3287
3288         if (freq == 2) {
3289                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3290                            "band");
3291                 if (wpa_s->best_24_freq > 0 &&
3292                     p2p_supported_freq(wpa_s->global->p2p,
3293                                        wpa_s->best_24_freq)) {
3294                         freq = wpa_s->best_24_freq;
3295                         wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3296                                    "channel: %d MHz", freq);
3297                 } else {
3298                         os_get_random((u8 *) &r, sizeof(r));
3299                         freq = 2412 + (r % 3) * 25;
3300                         wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3301                                    "channel: %d MHz", freq);
3302                 }
3303         }
3304
3305         if (freq == 5) {
3306                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3307                            "band");
3308                 if (wpa_s->best_5_freq > 0 &&
3309                     p2p_supported_freq(wpa_s->global->p2p,
3310                                        wpa_s->best_5_freq)) {
3311                         freq = wpa_s->best_5_freq;
3312                         wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3313                                    "channel: %d MHz", freq);
3314                 } else {
3315                         os_get_random((u8 *) &r, sizeof(r));
3316                         freq = 5180 + (r % 4) * 20;
3317                         if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3318                                 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3319                                            "5 GHz channel for P2P group");
3320                                 return -1;
3321                         }
3322                         wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3323                                    "channel: %d MHz", freq);
3324                 }
3325         }
3326
3327         if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3328                 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3329                            "(%u MHz) is not supported for P2P uses",
3330                            freq);
3331                 return -1;
3332         }
3333
3334         wpas_p2p_init_go_params(wpa_s, &params, freq);
3335         p2p_go_params(wpa_s->global->p2p, &params);
3336         params.persistent_group = persistent_group;
3337
3338         wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3339         if (wpa_s == NULL)
3340                 return -1;
3341         wpas_start_wps_go(wpa_s, &params, 0);
3342
3343         return 0;
3344 }
3345
3346
3347 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3348                                  struct wpa_ssid *params, int addr_allocated)
3349 {
3350         struct wpa_ssid *ssid;
3351
3352         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3353         if (wpa_s == NULL)
3354                 return -1;
3355
3356         wpa_supplicant_ap_deinit(wpa_s);
3357
3358         ssid = wpa_config_add_network(wpa_s->conf);
3359         if (ssid == NULL)
3360                 return -1;
3361         wpa_config_set_network_defaults(ssid);
3362         ssid->temporary = 1;
3363         ssid->proto = WPA_PROTO_RSN;
3364         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3365         ssid->group_cipher = WPA_CIPHER_CCMP;
3366         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3367         ssid->ssid = os_malloc(params->ssid_len);
3368         if (ssid->ssid == NULL) {
3369                 wpa_config_remove_network(wpa_s->conf, ssid->id);
3370                 return -1;
3371         }
3372         os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3373         ssid->ssid_len = params->ssid_len;
3374         ssid->p2p_group = 1;
3375         ssid->export_keys = 1;
3376         if (params->psk_set) {
3377                 os_memcpy(ssid->psk, params->psk, 32);
3378                 ssid->psk_set = 1;
3379         }
3380         if (params->passphrase)
3381                 ssid->passphrase = os_strdup(params->passphrase);
3382
3383         wpa_supplicant_select_network(wpa_s, ssid);
3384
3385         wpa_s->show_group_started = 1;
3386
3387         return 0;
3388 }
3389
3390
3391 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3392                                   struct wpa_ssid *ssid, int addr_allocated,
3393                                   int freq)
3394 {
3395         struct p2p_go_neg_results params;
3396         int go = 0;
3397
3398         if (ssid->disabled != 2 || ssid->ssid == NULL)
3399                 return -1;
3400
3401         if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
3402             go == (ssid->mode == WPAS_MODE_P2P_GO)) {
3403                 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
3404                            "already running");
3405                 return 0;
3406         }
3407
3408         /* Make sure we are not running find during connection establishment */
3409         wpas_p2p_stop_find(wpa_s);
3410
3411         if (ssid->mode == WPAS_MODE_INFRA)
3412                 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
3413
3414         if (ssid->mode != WPAS_MODE_P2P_GO)
3415                 return -1;
3416
3417         wpas_p2p_init_go_params(wpa_s, &params, freq);
3418
3419         params.role_go = 1;
3420         if (ssid->passphrase == NULL ||
3421             os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
3422                 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
3423                            "group");
3424                 return -1;
3425         }
3426         os_strlcpy(params.passphrase, ssid->passphrase,
3427                    sizeof(params.passphrase));
3428         os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
3429         params.ssid_len = ssid->ssid_len;
3430         params.persistent_group = 1;
3431
3432         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
3433         if (wpa_s == NULL)
3434                 return -1;
3435
3436         wpas_start_wps_go(wpa_s, &params, 0);
3437
3438         return 0;
3439 }
3440
3441
3442 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
3443                                struct wpabuf *proberesp_ies)
3444 {
3445         struct wpa_supplicant *wpa_s = ctx;
3446         if (wpa_s->ap_iface) {
3447                 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
3448                 if (beacon_ies) {
3449                         wpabuf_free(hapd->p2p_beacon_ie);
3450                         hapd->p2p_beacon_ie = beacon_ies;
3451                 }
3452                 wpabuf_free(hapd->p2p_probe_resp_ie);
3453                 hapd->p2p_probe_resp_ie = proberesp_ies;
3454         } else {
3455                 wpabuf_free(beacon_ies);
3456                 wpabuf_free(proberesp_ies);
3457         }
3458         wpa_supplicant_ap_update_beacon(wpa_s);
3459 }
3460
3461
3462 static void wpas_p2p_idle_update(void *ctx, int idle)
3463 {
3464         struct wpa_supplicant *wpa_s = ctx;
3465         if (!wpa_s->ap_iface)
3466                 return;
3467         wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
3468         if (idle)
3469                 wpas_p2p_set_group_idle_timeout(wpa_s);
3470         else
3471                 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3472 }
3473
3474
3475 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
3476                                        int persistent_group,
3477                                        int group_formation)
3478 {
3479         struct p2p_group *group;
3480         struct p2p_group_config *cfg;
3481
3482         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3483                 return NULL;
3484         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3485                 return NULL;
3486
3487         cfg = os_zalloc(sizeof(*cfg));
3488         if (cfg == NULL)
3489                 return NULL;
3490
3491         cfg->persistent_group = persistent_group;
3492         os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3493         if (wpa_s->max_stations &&
3494             wpa_s->max_stations < wpa_s->conf->max_num_sta)
3495                 cfg->max_clients = wpa_s->max_stations;
3496         else
3497                 cfg->max_clients = wpa_s->conf->max_num_sta;
3498         cfg->cb_ctx = wpa_s;
3499         cfg->ie_update = wpas_p2p_ie_update;
3500         cfg->idle_update = wpas_p2p_idle_update;
3501
3502         group = p2p_group_init(wpa_s->global->p2p, cfg);
3503         if (group == NULL)
3504                 os_free(cfg);
3505         if (!group_formation)
3506                 p2p_group_notif_formation_done(group);
3507         wpa_s->p2p_group = group;
3508         return group;
3509 }
3510
3511
3512 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3513                           int registrar)
3514 {
3515         if (!wpa_s->p2p_in_provisioning) {
3516                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
3517                            "provisioning not in progress");
3518                 return;
3519         }
3520
3521         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
3522                              NULL);
3523         if (wpa_s->global->p2p)
3524                 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
3525         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3526                 wpa_drv_wps_success_cb(wpa_s, peer_addr);
3527         wpas_group_formation_completed(wpa_s, 1);
3528 }
3529
3530
3531 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
3532                          struct wps_event_fail *fail)
3533 {
3534         if (!wpa_s->p2p_in_provisioning) {
3535                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
3536                            "provisioning not in progress");
3537                 return;
3538         }
3539         wpas_notify_p2p_wps_failed(wpa_s, fail);
3540 }
3541
3542
3543 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3544                        const char *config_method)
3545 {
3546         u16 config_methods;
3547
3548         if (os_strcmp(config_method, "display") == 0)
3549                 config_methods = WPS_CONFIG_DISPLAY;
3550         else if (os_strcmp(config_method, "keypad") == 0)
3551                 config_methods = WPS_CONFIG_KEYPAD;
3552         else if (os_strcmp(config_method, "pbc") == 0 ||
3553                  os_strcmp(config_method, "pushbutton") == 0)
3554                 config_methods = WPS_CONFIG_PUSHBUTTON;
3555         else
3556                 return -1;
3557
3558         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3559                 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
3560                                                  config_methods);
3561         }
3562
3563         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
3564                 return -1;
3565
3566         return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
3567                                  config_methods, 0);
3568 }
3569
3570
3571 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
3572                               char *end)
3573 {
3574         return p2p_scan_result_text(ies, ies_len, buf, end);
3575 }
3576
3577
3578 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
3579 {
3580         if (!wpa_s->pending_action_tx)
3581                 return;
3582
3583         wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
3584                    "operation request");
3585         wpabuf_free(wpa_s->pending_action_tx);
3586         wpa_s->pending_action_tx = NULL;
3587 }
3588
3589
3590 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
3591                   enum p2p_discovery_type type,
3592                   unsigned int num_req_dev_types, const u8 *req_dev_types)
3593 {
3594         wpas_p2p_clear_pending_action_tx(wpa_s);
3595         wpa_s->p2p_long_listen = 0;
3596
3597         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3598                 return wpa_drv_p2p_find(wpa_s, timeout, type);
3599
3600         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3601                 return -1;
3602
3603         return p2p_find(wpa_s->global->p2p, timeout, type,
3604                         num_req_dev_types, req_dev_types);
3605 }
3606
3607
3608 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
3609 {
3610         wpas_p2p_clear_pending_action_tx(wpa_s);
3611         wpa_s->p2p_long_listen = 0;
3612         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3613         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3614
3615         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3616                 wpa_drv_p2p_stop_find(wpa_s);
3617                 return;
3618         }
3619
3620         if (wpa_s->global->p2p)
3621                 p2p_stop_find(wpa_s->global->p2p);
3622
3623         wpas_p2p_remove_pending_group_interface(wpa_s);
3624 }
3625
3626
3627 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3628 {
3629         struct wpa_supplicant *wpa_s = eloop_ctx;
3630         wpa_s->p2p_long_listen = 0;
3631 }
3632
3633
3634 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
3635 {
3636         int res;
3637
3638         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3639                 return -1;
3640
3641         wpas_p2p_clear_pending_action_tx(wpa_s);
3642
3643         if (timeout == 0) {
3644                 /*
3645                  * This is a request for unlimited Listen state. However, at
3646                  * least for now, this is mapped to a Listen state for one
3647                  * hour.
3648                  */
3649                 timeout = 3600;
3650         }
3651         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3652         wpa_s->p2p_long_listen = 0;
3653
3654         res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
3655         if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
3656                 wpa_s->p2p_long_listen = timeout * 1000;
3657                 eloop_register_timeout(timeout, 0,
3658                                        wpas_p2p_long_listen_timeout,
3659                                        wpa_s, NULL);
3660         }
3661
3662         return res;
3663 }
3664
3665
3666 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
3667                           u8 *buf, size_t len, int p2p_group)
3668 {
3669         struct wpabuf *p2p_ie;
3670         int ret;
3671
3672         if (wpa_s->global->p2p_disabled)
3673                 return -1;
3674         if (wpa_s->global->p2p == NULL)
3675                 return -1;
3676         if (bss == NULL)
3677                 return -1;
3678
3679         p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3680 #ifdef ANDROID_BRCM_P2P_PATCH
3681         if (p2p_ie == NULL) return -1;
3682 #endif
3683         ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3684                                p2p_group, p2p_ie);
3685         wpabuf_free(p2p_ie);
3686
3687         return ret;
3688 }
3689
3690
3691 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
3692                           const u8 *ie, size_t ie_len)
3693 {
3694         if (wpa_s->global->p2p_disabled)
3695                 return 0;
3696         if (wpa_s->global->p2p == NULL)
3697                 return 0;
3698
3699         return p2p_probe_req_rx(wpa_s->global->p2p, addr, ie, ie_len);
3700 }
3701
3702
3703 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3704                         const u8 *sa, const u8 *bssid,
3705                         u8 category, const u8 *data, size_t len, int freq)
3706 {
3707         if (wpa_s->global->p2p_disabled)
3708                 return;
3709         if (wpa_s->global->p2p == NULL)
3710                 return;
3711
3712         p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3713                       freq);
3714 }
3715
3716
3717 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3718 {
3719         if (wpa_s->global->p2p_disabled)
3720                 return;
3721         if (wpa_s->global->p2p == NULL)
3722                 return;
3723
3724         p2p_scan_ie(wpa_s->global->p2p, ies);
3725 }
3726
3727
3728 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3729 {
3730         p2p_group_deinit(wpa_s->p2p_group);
3731         wpa_s->p2p_group = NULL;
3732 }
3733
3734
3735 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3736 {
3737         wpa_s->p2p_long_listen = 0;
3738
3739         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3740                 return wpa_drv_p2p_reject(wpa_s, addr);
3741
3742         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3743                 return -1;
3744
3745         return p2p_reject(wpa_s->global->p2p, addr);
3746 }
3747
3748
3749 /* Invite to reinvoke a persistent group */
3750 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3751                     struct wpa_ssid *ssid, const u8 *go_dev_addr)
3752 {
3753         enum p2p_invite_role role;
3754         u8 *bssid = NULL;
3755 #ifdef ANDROID_BRCM_P2P_PATCH
3756         int go;
3757 #endif
3758
3759         if (ssid->mode == WPAS_MODE_P2P_GO) {
3760                 role = P2P_INVITE_ROLE_GO;
3761                 if (peer_addr == NULL) {
3762                         wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3763                                    "address in invitation command");
3764                         return -1;
3765                 }
3766
3767 #ifdef ANDROID_BRCM_P2P_PATCH
3768         wpa_printf(MSG_DEBUG, "P2P: Check to see if already runnig persistent wpa_s %p grp ssid %s ssid_len %d", wpa_s, ssid->ssid, ssid->ssid_len);
3769         if(wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go)) {
3770                 wpa_printf(MSG_DEBUG, "P2P: We are already running persistent group");
3771                 if (go)
3772                         bssid = wpa_s->own_addr;
3773                 else
3774                         wpa_printf(MSG_DEBUG, "P2P: We are running persistent group but go is not set");
3775         } else {
3776                 wpa_printf(MSG_DEBUG, "P2P: We are NOT already running persistent group");
3777 #endif
3778
3779                 if (wpas_p2p_create_iface(wpa_s)) {
3780                         if (wpas_p2p_add_group_interface(wpa_s,
3781                                                          WPA_IF_P2P_GO) < 0) {
3782                                 wpa_printf(MSG_ERROR, "P2P: Failed to "
3783                                            "allocate a new interface for the "
3784                                            "group");
3785                                 return -1;
3786                         }
3787                         bssid = wpa_s->pending_interface_addr;
3788                 } else
3789                         bssid = wpa_s->own_addr;
3790 #ifdef ANDROID_BRCM_P2P_PATCH
3791         }
3792 #endif
3793         } else {
3794                 role = P2P_INVITE_ROLE_CLIENT;
3795                 peer_addr = ssid->bssid;
3796         }
3797         wpa_s->pending_invite_ssid_id = ssid->id;
3798
3799         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3800                 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3801                                           ssid->ssid, ssid->ssid_len,
3802                                           go_dev_addr, 1);
3803
3804         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3805                 return -1;
3806
3807         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3808                           ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3809 }
3810
3811
3812 /* Invite to join an active group */
3813 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3814                           const u8 *peer_addr, const u8 *go_dev_addr)
3815 {
3816         struct wpa_global *global = wpa_s->global;
3817         enum p2p_invite_role role;
3818         u8 *bssid = NULL;
3819         struct wpa_ssid *ssid;
3820
3821         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3822                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3823                         break;
3824         }
3825         if (wpa_s == NULL) {
3826                 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3827                 return -1;
3828         }
3829
3830         ssid = wpa_s->current_ssid;
3831         if (ssid == NULL) {
3832                 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3833                            "invitation");
3834                 return -1;
3835         }
3836
3837         if (ssid->mode == WPAS_MODE_P2P_GO) {
3838                 role = P2P_INVITE_ROLE_ACTIVE_GO;
3839                 bssid = wpa_s->own_addr;
3840                 if (go_dev_addr == NULL)
3841                         go_dev_addr = wpa_s->parent->own_addr;
3842         } else {
3843                 role = P2P_INVITE_ROLE_CLIENT;
3844                 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3845                         wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3846                                    "invite to current group");
3847                         return -1;
3848                 }
3849                 bssid = wpa_s->bssid;
3850                 if (go_dev_addr == NULL &&
3851                     !is_zero_ether_addr(wpa_s->go_dev_addr))
3852                         go_dev_addr = wpa_s->go_dev_addr;
3853         }
3854         wpa_s->parent->pending_invite_ssid_id = -1;
3855
3856         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3857                 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3858                                           ssid->ssid, ssid->ssid_len,
3859                                           go_dev_addr, 0);
3860
3861         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3862                 return -1;
3863
3864         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3865                           ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
3866                           go_dev_addr, 0);
3867 }
3868
3869
3870 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3871 {
3872         struct wpa_ssid *ssid = wpa_s->current_ssid;
3873         const char *ssid_txt;
3874         u8 go_dev_addr[ETH_ALEN];
3875         int network_id = -1;
3876         int persistent;
3877
3878         if (!wpa_s->show_group_started || !ssid)
3879                 return;
3880
3881         wpa_s->show_group_started = 0;
3882
3883         ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3884         os_memset(go_dev_addr, 0, ETH_ALEN);
3885         if (ssid->bssid_set)
3886                 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3887         persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3888                                                ssid->ssid_len);
3889         os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3890
3891         if (wpa_s->global->p2p_group_formation == wpa_s)
3892                 wpa_s->global->p2p_group_formation = NULL;
3893
3894         if (ssid->passphrase == NULL && ssid->psk_set) {
3895                 char psk[65];
3896                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3897                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3898                         "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
3899                         MACSTR "%s",
3900                 #ifdef ANDROID_BRCM_P2P_PATCH
3901                         wpa_s->ifname, ssid_txt, wpa_s->current_bss->freq, psk,
3902                 #else
3903                         wpa_s->ifname, ssid_txt, ssid->frequency, psk,
3904                 #endif
3905                         MAC2STR(go_dev_addr),
3906                         persistent ? " [PERSISTENT]" : "");
3907         } else {
3908                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3909                         "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
3910                         "go_dev_addr=" MACSTR "%s",
3911                 #ifdef ANDROID_BRCM_P2P_PATCH
3912                         wpa_s->ifname, ssid_txt, wpa_s->current_bss->freq,
3913                 #else
3914                         wpa_s->ifname, ssid_txt, ssid->frequency,
3915                 #endif
3916                         ssid->passphrase ? ssid->passphrase : "",
3917                         MAC2STR(go_dev_addr),
3918                         persistent ? " [PERSISTENT]" : "");
3919         }
3920
3921         if (persistent)
3922                 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
3923                                                              ssid, go_dev_addr);
3924         if (network_id < 0)
3925                 network_id = ssid->id;
3926         wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
3927 }
3928
3929
3930 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3931                           u32 interval1, u32 duration2, u32 interval2)
3932 {
3933         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3934                 return -1;
3935         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3936                 return -1;
3937
3938         if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3939             wpa_s->current_ssid == NULL ||
3940             wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3941                 return -1;
3942
3943         return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3944                                 wpa_s->own_addr, wpa_s->assoc_freq,
3945                                 duration1, interval1, duration2, interval2);
3946 }
3947
3948
3949 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3950                         unsigned int interval)
3951 {
3952         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3953                 return -1;
3954
3955         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3956                 return -1;
3957
3958         return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3959 }
3960
3961
3962 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
3963 {
3964         struct wpa_supplicant *wpa_s = eloop_ctx;
3965
3966         if (wpa_s->conf->p2p_group_idle == 0) {
3967                 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
3968                            "disabled");
3969                 return;
3970         }
3971
3972         wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
3973                    "group");
3974         wpa_s->removal_reason = P2P_GROUP_REMOVAL_IDLE_TIMEOUT;
3975         wpas_p2p_group_delete(wpa_s);
3976 }
3977
3978
3979 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
3980 {
3981         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3982         if (wpa_s->conf->p2p_group_idle == 0)
3983                 return;
3984
3985         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3986                 return;
3987
3988         wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
3989                    wpa_s->conf->p2p_group_idle);
3990         eloop_register_timeout(wpa_s->conf->p2p_group_idle, 0,
3991                                wpas_p2p_group_idle_timeout, wpa_s, NULL);
3992 }
3993
3994
3995 void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3996                            u16 reason_code, const u8 *ie, size_t ie_len)
3997 {
3998         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3999                 return;
4000         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4001                 return;
4002
4003         p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
4004 }
4005
4006 #ifdef ANDROID_BRCM_P2P_PATCH
4007 void wpas_p2p_group_remove_notif(struct wpa_supplicant *wpa_s, u16 reason_code)
4008 {
4009         if(wpa_s->global->p2p_disabled)
4010                 return;
4011
4012         /* If we are running a P2P Client and we received a Deauth/Disassoc from the Go, then remove
4013            the virutal interface on which the client is running. */
4014         if((wpa_s != wpa_s->parent) && (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) && (wpa_s->key_mgmt != WPA_KEY_MGMT_WPS)) {
4015
4016                 wpa_printf(MSG_DEBUG, "P2P: [EVENT_DEAUTH] Removing P2P_CLIENT virtual intf.");
4017                 wpa_supplicant_cancel_scan(wpa_s);
4018                 wpas_p2p_interface_unavailable(wpa_s);
4019         }
4020 }
4021 #endif
4022
4023 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4024                              u16 reason_code, const u8 *ie, size_t ie_len)
4025 {
4026         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4027                 return;
4028         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4029                 return;
4030
4031         p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
4032 }
4033
4034
4035 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
4036 {
4037         struct p2p_data *p2p = wpa_s->global->p2p;
4038
4039         if (p2p == NULL)
4040                 return;
4041
4042         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4043                 return;
4044
4045         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
4046                 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
4047
4048         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
4049                 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
4050
4051         if (wpa_s->wps &&
4052             (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
4053                 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
4054
4055         if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
4056                 p2p_set_uuid(p2p, wpa_s->wps->uuid);
4057
4058         if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
4059                 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
4060                 p2p_set_model_name(p2p, wpa_s->conf->model_name);
4061                 p2p_set_model_number(p2p, wpa_s->conf->model_number);
4062                 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
4063         }
4064
4065         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
4066                 p2p_set_sec_dev_types(p2p,
4067                                       (void *) wpa_s->conf->sec_device_type,
4068                                       wpa_s->conf->num_sec_device_types);
4069
4070         if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
4071                 int i;
4072                 p2p_remove_wps_vendor_extensions(p2p);
4073                 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4074                         if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4075                                 continue;
4076                         p2p_add_wps_vendor_extension(
4077                                 p2p, wpa_s->conf->wps_vendor_ext[i]);
4078                 }
4079         }
4080
4081         if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
4082             wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4083                 char country[3];
4084                 country[0] = wpa_s->conf->country[0];
4085                 country[1] = wpa_s->conf->country[1];
4086                 country[2] = 0x04;
4087                 p2p_set_country(p2p, country);
4088         }
4089
4090         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
4091                 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
4092                                      wpa_s->conf->p2p_ssid_postfix ?
4093                                      os_strlen(wpa_s->conf->p2p_ssid_postfix) :
4094                                      0);
4095         }
4096
4097         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
4098                 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
4099
4100         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
4101                 u8 reg_class, channel;
4102                 int ret;
4103                 unsigned int r;
4104                 if (wpa_s->conf->p2p_listen_reg_class &&
4105                     wpa_s->conf->p2p_listen_channel) {
4106                         reg_class = wpa_s->conf->p2p_listen_reg_class;
4107                         channel = wpa_s->conf->p2p_listen_channel;
4108                 } else {
4109                         reg_class = 81;
4110                         /*
4111                          * Pick one of the social channels randomly as the
4112                          * listen channel.
4113                          */
4114                         os_get_random((u8 *) &r, sizeof(r));
4115                         channel = 1 + (r % 3) * 5;
4116                 }
4117                 ret = p2p_set_listen_channel(p2p, reg_class, channel);
4118                 if (ret)
4119                         wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
4120                                    "failed: %d", ret);
4121         }
4122         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
4123                 u8 op_reg_class, op_channel, cfg_op_channel;
4124                 int ret = 0;
4125                 unsigned int r;
4126                 if (wpa_s->conf->p2p_oper_reg_class &&
4127                     wpa_s->conf->p2p_oper_channel) {
4128                         op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4129                         op_channel = wpa_s->conf->p2p_oper_channel;
4130                         cfg_op_channel = 1;
4131                 } else {
4132                         op_reg_class = 81;
4133                         /*
4134                          * Use random operation channel from (1, 6, 11)
4135                          *if no other preference is indicated.
4136                          */
4137                         os_get_random((u8 *) &r, sizeof(r));
4138                         op_channel = 1 + (r % 3) * 5;
4139                         cfg_op_channel = 0;
4140                 }
4141                 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
4142                                            cfg_op_channel);
4143                 if (ret)
4144                         wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
4145                                    "failed: %d", ret);
4146         }
4147 }
4148
4149
4150 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
4151                      int duration)
4152 {
4153         if (!wpa_s->ap_iface)
4154                 return -1;
4155         return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
4156                                    duration);
4157 }
4158
4159
4160 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
4161 {
4162         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4163                 return -1;
4164         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4165                 return -1;
4166
4167         wpa_s->global->cross_connection = enabled;
4168         p2p_set_cross_connect(wpa_s->global->p2p, enabled);
4169
4170         if (!enabled) {
4171                 struct wpa_supplicant *iface;
4172
4173                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
4174                 {
4175                         if (iface->cross_connect_enabled == 0)
4176                                 continue;
4177
4178                         iface->cross_connect_enabled = 0;
4179                         iface->cross_connect_in_use = 0;
4180                         wpa_msg(iface->parent, MSG_INFO,
4181                                 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4182                                 iface->ifname, iface->cross_connect_uplink);
4183                 }
4184         }
4185
4186         return 0;
4187 }
4188
4189
4190 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
4191 {
4192         struct wpa_supplicant *iface;
4193
4194         if (!uplink->global->cross_connection)
4195                 return;
4196
4197         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4198                 if (!iface->cross_connect_enabled)
4199                         continue;
4200                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4201                     0)
4202                         continue;
4203                 if (iface->ap_iface == NULL)
4204                         continue;
4205                 if (iface->cross_connect_in_use)
4206                         continue;
4207
4208                 iface->cross_connect_in_use = 1;
4209                 wpa_msg(iface->parent, MSG_INFO,
4210                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4211                         iface->ifname, iface->cross_connect_uplink);
4212         }
4213 }
4214
4215
4216 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
4217 {
4218         struct wpa_supplicant *iface;
4219
4220         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4221                 if (!iface->cross_connect_enabled)
4222                         continue;
4223                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4224                     0)
4225                         continue;
4226                 if (!iface->cross_connect_in_use)
4227                         continue;
4228
4229                 wpa_msg(iface->parent, MSG_INFO,
4230                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4231                         iface->ifname, iface->cross_connect_uplink);
4232                 iface->cross_connect_in_use = 0;
4233         }
4234 }
4235
4236
4237 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4238 {
4239         if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
4240             wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
4241             wpa_s->cross_connect_disallowed)
4242                 wpas_p2p_disable_cross_connect(wpa_s);
4243         else
4244                 wpas_p2p_enable_cross_connect(wpa_s);
4245         if (!wpa_s->ap_iface)
4246                 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4247 }
4248
4249
4250 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
4251 {
4252         wpas_p2p_disable_cross_connect(wpa_s);
4253         if (!wpa_s->ap_iface)
4254                 wpas_p2p_set_group_idle_timeout(wpa_s);
4255 }
4256
4257
4258 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
4259 {
4260         struct wpa_supplicant *iface;
4261
4262         if (!wpa_s->global->cross_connection)
4263                 return;
4264
4265         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
4266                 if (iface == wpa_s)
4267                         continue;
4268                 if (iface->drv_flags &
4269                     WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
4270                         continue;
4271                 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
4272                         continue;
4273
4274                 wpa_s->cross_connect_enabled = 1;
4275                 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
4276                            sizeof(wpa_s->cross_connect_uplink));
4277                 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
4278                            "%s to %s whenever uplink is available",
4279                            wpa_s->ifname, wpa_s->cross_connect_uplink);
4280
4281                 if (iface->ap_iface || iface->current_ssid == NULL ||
4282                     iface->current_ssid->mode != WPAS_MODE_INFRA ||
4283                     iface->cross_connect_disallowed ||
4284                     iface->wpa_state != WPA_COMPLETED)
4285                         break;
4286
4287                 wpa_s->cross_connect_in_use = 1;
4288                 wpa_msg(wpa_s->parent, MSG_INFO,
4289                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4290                         wpa_s->ifname, wpa_s->cross_connect_uplink);
4291                 break;
4292         }
4293 }
4294
4295
4296 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
4297 {
4298         if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
4299             !wpa_s->p2p_in_provisioning)
4300                 return 0; /* not P2P client operation */
4301
4302         wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
4303                    "session overlap");
4304         if (wpa_s != wpa_s->parent)
4305                 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
4306
4307         if (wpa_s->global->p2p)
4308                 p2p_group_formation_failed(wpa_s->global->p2p);
4309
4310         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4311                              wpa_s->parent, NULL);
4312
4313         wpas_group_formation_completed(wpa_s, 0);
4314         return 1;
4315 }
4316
4317
4318 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
4319 {
4320         struct p2p_channels chan;
4321
4322         if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
4323                 return;
4324
4325         os_memset(&chan, 0, sizeof(chan));
4326         if (wpas_p2p_setup_channels(wpa_s, &chan)) {
4327                 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
4328                            "channel list");
4329                 return;
4330         }
4331
4332         p2p_update_channel_list(wpa_s->global->p2p, &chan);
4333 }
4334
4335
4336 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
4337 {
4338         struct wpa_global *global = wpa_s->global;
4339         int found = 0;
4340         const u8 *peer;
4341
4342         if (global->p2p == NULL)
4343                 return -1;
4344
4345         wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
4346
4347         if (wpa_s->pending_interface_name[0] &&
4348             !is_zero_ether_addr(wpa_s->pending_interface_addr))
4349                 found = 1;
4350
4351         peer = p2p_get_go_neg_peer(global->p2p);
4352         if (peer) {
4353                 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
4354                            MACSTR, MAC2STR(peer));
4355                 p2p_unauthorize(global->p2p, peer);
4356         }
4357
4358         wpas_p2p_stop_find(wpa_s);
4359
4360         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4361                 if (wpa_s == global->p2p_group_formation &&
4362                     (wpa_s->p2p_in_provisioning ||
4363                      wpa_s->parent->pending_interface_type ==
4364                      WPA_IF_P2P_CLIENT)) {
4365                         wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
4366                                    "formation found - cancelling",
4367                                    wpa_s->ifname);
4368                         found = 1;
4369                         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4370                                              wpa_s->parent, NULL);
4371                         wpas_p2p_group_delete(wpa_s);
4372                         break;
4373                 }
4374         }
4375
4376         if (!found) {
4377                 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
4378                 return -1;
4379         }
4380
4381         return 0;
4382 }
4383
4384
4385 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
4386 {
4387         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4388                 return;
4389
4390         wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
4391                    "being available anymore");
4392         wpa_s->removal_reason = P2P_GROUP_REMOVAL_UNAVAILABLE;
4393         wpas_p2p_group_delete(wpa_s);
4394 }
4395
4396
4397 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
4398                                    int freq_24, int freq_5, int freq_overall)
4399 {
4400         struct p2p_data *p2p = wpa_s->global->p2p;
4401         if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4402                 return;
4403         p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
4404 }
4405
4406
4407 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
4408 {
4409         u8 peer[ETH_ALEN];
4410         struct p2p_data *p2p = wpa_s->global->p2p;
4411
4412         if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4413                 return -1;
4414
4415         if (hwaddr_aton(addr, peer))
4416                 return -1;
4417
4418         return p2p_unauthorize(p2p, peer);
4419 }
4420
4421
4422 /**
4423  * wpas_p2p_disconnect - Disconnect from a P2P Group
4424  * @wpa_s: Pointer to wpa_supplicant data
4425  * Returns: 0 on success, -1 on failure
4426  *
4427  * This can be used to disconnect from a group in which the local end is a P2P
4428  * Client or to end a P2P Group in case the local end is the Group Owner. If a
4429  * virtual network interface was created for this group, that interface will be
4430  * removed. Otherwise, only the configured P2P group network will be removed
4431  * from the interface.
4432  */
4433 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
4434 {
4435
4436         if (wpa_s == NULL)
4437                 return -1;
4438
4439         wpa_s->removal_reason = P2P_GROUP_REMOVAL_REQUESTED;
4440         wpas_p2p_group_delete(wpa_s);
4441
4442         return 0;
4443 }