wpa_supplicant/p2p_supplicant.c

   1 /*
   2  * wpa_supplicant - P2P
   3  * Copyright (c) 2009-2010, Atheros Communications
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10
  11 #include "common.h"
  12 #include "eloop.h"
  13 #include "common/ieee802_11_common.h"
  14 #include "common/ieee802_11_defs.h"
  15 #include "common/wpa_ctrl.h"
  16 #include "wps/wps_i.h"
  17 #include "p2p/p2p.h"
  18 #include "ap/hostapd.h"
  19 #include "ap/ap_config.h"
  20 #include "ap/p2p_hostapd.h"
  21 #include "eapol_supp/eapol_supp_sm.h"
  22 #include "rsn_supp/wpa.h"
  23 #include "wpa_supplicant_i.h"
  24 #include "driver_i.h"
  25 #include "ap.h"
  26 #include "config_ssid.h"
  27 #include "config.h"
  28 #include "notify.h"
  29 #include "scan.h"
  30 #include "bss.h"
  31 #include "offchannel.h"
  32 #include "wps_supplicant.h"
  33 #include "p2p_supplicant.h"
  34
  35
  36 /*
  37  * How many times to try to scan to find the GO before giving up on join
  38  * request.
  39  */
  40 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
  41
  42 #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
  43
  44 #ifndef P2P_MAX_CLIENT_IDLE
  45 /*
  46  * How many seconds to try to reconnect to the GO when connection in P2P client
  47  * role has been lost.
  48  */
  49 #ifdef ANDROID_P2P
  50 #define P2P_MAX_CLIENT_IDLE 20
  51 #else
  52 #define P2P_MAX_CLIENT_IDLE 10
  53 #endif /* ANDROID_P2P */
  54 #endif /* P2P_MAX_CLIENT_IDLE */
  55
  56 #ifndef P2P_MAX_INITIAL_CONN_WAIT
  57 /*
  58  * How many seconds to wait for initial 4-way handshake to get completed after
  59  * WPS provisioning step.
  60  */
  61 #define P2P_MAX_INITIAL_CONN_WAIT 10
  62 #endif /* P2P_MAX_INITIAL_CONN_WAIT */
  63
  64 #ifndef P2P_CONCURRENT_SEARCH_DELAY
  65 #ifdef ANDROID_P2P
  66 #define P2P_CONCURRENT_SEARCH_DELAY 0
  67 #else
  68 #define P2P_CONCURRENT_SEARCH_DELAY 500
  69 #endif
  70 #endif /* P2P_CONCURRENT_SEARCH_DELAY */
  71
  72 enum p2p_group_removal_reason {
  73         P2P_GROUP_REMOVAL_UNKNOWN,
  74         P2P_GROUP_REMOVAL_SILENT,
  75         P2P_GROUP_REMOVAL_FORMATION_FAILED,
  76         P2P_GROUP_REMOVAL_REQUESTED,
  77         P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
  78         P2P_GROUP_REMOVAL_UNAVAILABLE,
  79         P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
  80 #ifdef ANDROID_P2P
  81         P2P_GROUP_REMOVAL_FREQ_CONFLICT
  82 #endif
  83 };
  84
  85 #ifdef ANDROID_P2P
  86 static int wpas_global_scan_in_progress(struct wpa_supplicant *wpa_s);
  87 #endif
  88 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
  89 static struct wpa_supplicant *
  90 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
  91                          int go);
  92 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
  93 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq);
  94 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
  95 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
  96                          const u8 *dev_addr, enum p2p_wps_method wps_method,
  97                          int auto_join);
  98 static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx,
  99                                             void *timeout_ctx);
 100 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
 101 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
 102 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
 103 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
 104 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
 105                                         int group_added);
 106
 107 #ifdef ANDROID_P2P
 108 static int wpas_global_scan_in_progress(struct wpa_supplicant *wpa_s)
 109 {
 110         struct wpa_supplicant *iface = NULL;
 111
 112         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
 113                 if(iface->scanning  || iface->wpa_state == WPA_SCANNING) {
 114                         wpa_printf(MSG_DEBUG, "P2P: Scan in progress on %s,"
 115                         "defer P2P SEARCH", iface->ifname);
 116                         return 1;
 117                 }
 118         }
 119
 120         return 0;
 121 }
 122 #endif
 123
 124 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
 125                                       struct wpa_scan_results *scan_res)
 126 {
 127         size_t i;
 128
 129         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 130                 return;
 131
 132         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
 133                    (int) scan_res->num);
 134
 135         for (i = 0; i < scan_res->num; i++) {
 136                 struct wpa_scan_res *bss = scan_res->res[i];
 137                 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
 138                                          bss->freq, bss->level,
 139                                          (const u8 *) (bss + 1),
 140                                          bss->ie_len) > 0)
 141                         break;
 142         }
 143
 144         p2p_scan_res_handled(wpa_s->global->p2p);
 145 }
 146
 147
 148 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
 149                          unsigned int num_req_dev_types,
 150                          const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
 151 {
 152         struct wpa_supplicant *wpa_s = ctx;
 153         struct wpa_supplicant *ifs;
 154         struct wpa_driver_scan_params params;
 155         int ret;
 156         struct wpabuf *wps_ie, *ies;
 157         int social_channels[] = { 2412, 2437, 2462, 0, 0 };
 158         size_t ielen;
 159
 160         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 161                 return -1;
 162
 163         for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
 164                 if (ifs->sta_scan_pending &&
 165                     wpas_p2p_in_progress(wpa_s) == 2) {
 166                         wpa_printf(MSG_DEBUG, "Delaying P2P scan to allow "
 167                                    "pending station mode scan to be "
 168                                    "completed on interface %s", ifs->ifname);
 169 #ifdef ANDROID_P2P
 170                         ifs->p2p_cb_on_scan_complete = 1;
 171 #else
 172                         wpa_s->p2p_cb_on_scan_complete = 1;
 173 #endif
 174                         wpa_supplicant_req_scan(ifs, 0, 0);
 175                         return 1;
 176                 }
 177 #ifdef ANDROID_P2P
 178                 else if(ifs->scanning) {
 179                         wpa_printf(MSG_DEBUG, "Wait for the STA scan"
 180                                    "to be "
 181                                    "completed on interface %s", ifs->ifname);
 182                         ifs->p2p_cb_on_scan_complete = 1;
 183                         return 1;
 184                 }
 185 #endif
 186         }
 187
 188         os_memset(&params, 0, sizeof(params));
 189
 190         /* P2P Wildcard SSID */
 191         params.num_ssids = 1;
 192         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
 193         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
 194
 195         wpa_s->wps->dev.p2p = 1;
 196         wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
 197                                         wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
 198                                         num_req_dev_types, req_dev_types);
 199         if (wps_ie == NULL)
 200                 return -1;
 201
 202         ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
 203         ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
 204         if (ies == NULL) {
 205                 wpabuf_free(wps_ie);
 206                 return -1;
 207         }
 208         wpabuf_put_buf(ies, wps_ie);
 209         wpabuf_free(wps_ie);
 210
 211         p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
 212
 213         params.p2p_probe = 1;
 214         params.extra_ies = wpabuf_head(ies);
 215         params.extra_ies_len = wpabuf_len(ies);
 216
 217         switch (type) {
 218         case P2P_SCAN_SOCIAL:
 219                 params.freqs = social_channels;
 220                 break;
 221         case P2P_SCAN_FULL:
 222                 break;
 223         case P2P_SCAN_SPECIFIC:
 224                 social_channels[0] = freq;
 225                 social_channels[1] = 0;
 226                 params.freqs = social_channels;
 227                 break;
 228         case P2P_SCAN_SOCIAL_PLUS_ONE:
 229                 social_channels[3] = freq;
 230                 params.freqs = social_channels;
 231                 break;
 232         }
 233
 234         ret = wpa_drv_scan(wpa_s, &params);
 235
 236         wpabuf_free(ies);
 237
 238         if (ret) {
 239                 if (wpa_s->scanning ||
 240                     wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
 241                         wpa_s->p2p_cb_on_scan_complete = 1;
 242                         ret = 1;
 243                 }
 244         } else
 245                 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
 246
 247         return ret;
 248 }
 249
 250
 251 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
 252 {
 253         switch (p2p_group_interface) {
 254         case P2P_GROUP_INTERFACE_PENDING:
 255                 return WPA_IF_P2P_GROUP;
 256         case P2P_GROUP_INTERFACE_GO:
 257                 return WPA_IF_P2P_GO;
 258         case P2P_GROUP_INTERFACE_CLIENT:
 259                 return WPA_IF_P2P_CLIENT;
 260         }
 261
 262         return WPA_IF_P2P_GROUP;
 263 }
 264
 265
 266 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
 267                                                   const u8 *ssid,
 268                                                   size_t ssid_len, int *go)
 269 {
 270         struct wpa_ssid *s;
 271
 272         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 273                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 274                         if (s->disabled != 0 || !s->p2p_group ||
 275                             s->ssid_len != ssid_len ||
 276                             os_memcmp(ssid, s->ssid, ssid_len) != 0)
 277                                 continue;
 278                         if (s->mode == WPAS_MODE_P2P_GO &&
 279                             s != wpa_s->current_ssid)
 280                                 continue;
 281                         if (go)
 282                                 *go = s->mode == WPAS_MODE_P2P_GO;
 283                         return wpa_s;
 284                 }
 285         }
 286
 287         return NULL;
 288 }
 289
 290
 291 static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
 292                                  enum p2p_group_removal_reason removal_reason)
 293 {
 294         struct wpa_ssid *ssid;
 295         char *gtype;
 296         const char *reason;
 297
 298         ssid = wpa_s->current_ssid;
 299         if (ssid == NULL) {
 300                 /*
 301                  * The current SSID was not known, but there may still be a
 302                  * pending P2P group interface waiting for provisioning.
 303                  */
 304                 ssid = wpa_s->conf->ssid;
 305                 while (ssid) {
 306                         if (ssid->p2p_group &&
 307                             (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 308                              (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
 309                                 break;
 310                         ssid = ssid->next;
 311                 }
 312                 if (ssid == NULL &&
 313                         wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
 314                 {
 315                         wpa_printf(MSG_ERROR, "P2P: P2P group interface "
 316                                    "not found");
 317                         return -1;
 318                 }
 319         }
 320         if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
 321                 gtype = "GO";
 322         else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
 323                  (ssid && ssid->mode == WPAS_MODE_INFRA)) {
 324                 wpa_s->reassociate = 0;
 325                 wpa_s->disconnected = 1;
 326                 wpa_supplicant_deauthenticate(wpa_s,
 327                                               WLAN_REASON_DEAUTH_LEAVING);
 328                 gtype = "client";
 329         } else
 330                 gtype = "GO";
 331         if (wpa_s->cross_connect_in_use) {
 332                 wpa_s->cross_connect_in_use = 0;
 333                 wpa_msg(wpa_s->parent, MSG_INFO,
 334                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
 335                         wpa_s->ifname, wpa_s->cross_connect_uplink);
 336         }
 337         switch (removal_reason) {
 338         case P2P_GROUP_REMOVAL_REQUESTED:
 339                 reason = " reason=REQUESTED";
 340                 break;
 341         case P2P_GROUP_REMOVAL_FORMATION_FAILED:
 342                 reason = " reason=FORMATION_FAILED";
 343                 break;
 344         case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
 345                 reason = " reason=IDLE";
 346                 break;
 347         case P2P_GROUP_REMOVAL_UNAVAILABLE:
 348                 reason = " reason=UNAVAILABLE";
 349                 break;
 350         case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
 351                 reason = " reason=GO_ENDING_SESSION";
 352                 break;
 353 #ifdef ANDROID_P2P
 354         case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
 355                 reason = " reason=FREQ_CONFLICT";
 356                 break;
 357 #endif
 358         default:
 359                 reason = "";
 360                 break;
 361         }
 362         if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
 363                 wpa_msg(wpa_s->parent, MSG_INFO,
 364                         P2P_EVENT_GROUP_REMOVED "%s %s%s",
 365                         wpa_s->ifname, gtype, reason);
 366         }
 367
 368         if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
 369                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
 370
 371         if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
 372                 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
 373
 374         if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
 375                 struct wpa_global *global;
 376                 char *ifname;
 377                 enum wpa_driver_if_type type;
 378                 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
 379                         wpa_s->ifname);
 380                 global = wpa_s->global;
 381                 ifname = os_strdup(wpa_s->ifname);
 382                 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
 383                 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
 384                 wpa_s = global->ifaces;
 385                 if (wpa_s && ifname)
 386                         wpa_drv_if_remove(wpa_s, type, ifname);
 387                 os_free(ifname);
 388                 return 1;
 389         }
 390
 391         wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
 392         if (ssid && (ssid->p2p_group ||
 393                      ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 394                      (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
 395                 int id = ssid->id;
 396                 if (ssid == wpa_s->current_ssid) {
 397                         wpa_sm_set_config(wpa_s->wpa, NULL);
 398                         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 399                         wpa_s->current_ssid = NULL;
 400                 }
 401                 /*
 402                  * Networks objects created during any P2P activities are not
 403                  * exposed out as they might/will confuse certain non-P2P aware
 404                  * applications since these network objects won't behave like
 405                  * regular ones.
 406                  *
 407                  * Likewise, we don't send out network removed signals for such
 408                  * network objects.
 409                  */
 410                 wpa_config_remove_network(wpa_s->conf, id);
 411                 wpa_supplicant_clear_status(wpa_s);
 412                 wpa_supplicant_cancel_sched_scan(wpa_s);
 413         } else {
 414                 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
 415                            "found");
 416         }
 417         if (wpa_s->ap_iface)
 418                 wpa_supplicant_ap_deinit(wpa_s);
 419         else
 420                 wpa_drv_deinit_p2p_cli(wpa_s);
 421
 422         return 0;
 423 }
 424
 425
 426 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
 427                                      u8 *go_dev_addr,
 428                                      const u8 *ssid, size_t ssid_len)
 429 {
 430         struct wpa_bss *bss;
 431         const u8 *bssid;
 432         struct wpabuf *p2p;
 433         u8 group_capab;
 434         const u8 *addr;
 435
 436         if (wpa_s->go_params)
 437                 bssid = wpa_s->go_params->peer_interface_addr;
 438         else
 439                 bssid = wpa_s->bssid;
 440
 441         bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
 442         if (bss == NULL) {
 443                 u8 iface_addr[ETH_ALEN];
 444                 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
 445                                            iface_addr) == 0)
 446                         bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
 447         }
 448         if (bss == NULL) {
 449                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 450                            "group is persistent - BSS " MACSTR " not found",
 451                            MAC2STR(bssid));
 452                 return 0;
 453         }
 454
 455         p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
 456         if (p2p == NULL) {
 457                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 458                            "group is persistent - BSS " MACSTR
 459                            " did not include P2P IE", MAC2STR(bssid));
 460                 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
 461                             (u8 *) (bss + 1), bss->ie_len);
 462                 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
 463                             ((u8 *) bss + 1) + bss->ie_len,
 464                             bss->beacon_ie_len);
 465                 return 0;
 466         }
 467
 468         group_capab = p2p_get_group_capab(p2p);
 469         addr = p2p_get_go_dev_addr(p2p);
 470         wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
 471                    "group_capab=0x%x", group_capab);
 472         if (addr) {
 473                 os_memcpy(go_dev_addr, addr, ETH_ALEN);
 474                 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
 475                            MAC2STR(addr));
 476         } else
 477                 os_memset(go_dev_addr, 0, ETH_ALEN);
 478         wpabuf_free(p2p);
 479
 480         wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
 481                    "go_dev_addr=" MACSTR,
 482                    MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
 483
 484         return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
 485 }
 486
 487
 488 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
 489                                            struct wpa_ssid *ssid,
 490                                            const u8 *go_dev_addr)
 491 {
 492         struct wpa_ssid *s;
 493         int changed = 0;
 494
 495         wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
 496                    "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
 497         for (s = wpa_s->conf->ssid; s; s = s->next) {
 498                 if (s->disabled == 2 &&
 499                     os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
 500                     s->ssid_len == ssid->ssid_len &&
 501                     os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
 502                         break;
 503         }
 504
 505         if (s) {
 506                 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
 507                            "entry");
 508                 if (ssid->passphrase && !s->passphrase)
 509                         changed = 1;
 510                 else if (ssid->passphrase && s->passphrase &&
 511                          os_strcmp(ssid->passphrase, s->passphrase) != 0)
 512                         changed = 1;
 513         } else {
 514                 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
 515                            "entry");
 516                 changed = 1;
 517                 s = wpa_config_add_network(wpa_s->conf);
 518                 if (s == NULL)
 519                         return -1;
 520
 521                 /*
 522                  * Instead of network_added we emit persistent_group_added
 523                  * notification. Also to keep the defense checks in
 524                  * persistent_group obj registration method, we set the
 525                  * relevant flags in s to designate it as a persistent group.
 526                  */
 527                 s->p2p_group = 1;
 528                 s->p2p_persistent_group = 1;
 529                 wpas_notify_persistent_group_added(wpa_s, s);
 530                 wpa_config_set_network_defaults(s);
 531         }
 532
 533         s->p2p_group = 1;
 534         s->p2p_persistent_group = 1;
 535         s->disabled = 2;
 536         s->bssid_set = 1;
 537         os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
 538         s->mode = ssid->mode;
 539         s->auth_alg = WPA_AUTH_ALG_OPEN;
 540         s->key_mgmt = WPA_KEY_MGMT_PSK;
 541         s->proto = WPA_PROTO_RSN;
 542         s->pairwise_cipher = WPA_CIPHER_CCMP;
 543         s->export_keys = 1;
 544         if (ssid->passphrase) {
 545                 os_free(s->passphrase);
 546                 s->passphrase = os_strdup(ssid->passphrase);
 547         }
 548         if (ssid->psk_set) {
 549                 s->psk_set = 1;
 550                 os_memcpy(s->psk, ssid->psk, 32);
 551         }
 552         if (s->passphrase && !s->psk_set)
 553                 wpa_config_update_psk(s);
 554         if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
 555                 os_free(s->ssid);
 556                 s->ssid = os_malloc(ssid->ssid_len);
 557         }
 558         if (s->ssid) {
 559                 s->ssid_len = ssid->ssid_len;
 560                 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
 561         }
 562
 563 #ifndef CONFIG_NO_CONFIG_WRITE
 564         if (changed && wpa_s->conf->update_config &&
 565             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 566                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
 567         }
 568 #endif /* CONFIG_NO_CONFIG_WRITE */
 569
 570         return s->id;
 571 }
 572
 573
 574 static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
 575                                                  const u8 *addr)
 576 {
 577         struct wpa_ssid *ssid, *s;
 578         u8 *n;
 579         size_t i;
 580         int found = 0;
 581
 582         ssid = wpa_s->current_ssid;
 583         if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
 584             !ssid->p2p_persistent_group)
 585                 return;
 586
 587         for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
 588                 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
 589                         continue;
 590
 591                 if (s->ssid_len == ssid->ssid_len &&
 592                     os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
 593                         break;
 594         }
 595
 596         if (s == NULL)
 597                 return;
 598
 599         for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
 600                 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
 601                               ETH_ALEN) != 0)
 602                         continue;
 603
 604                 if (i == s->num_p2p_clients - 1)
 605                         return; /* already the most recent entry */
 606
 607                 /* move the entry to mark it most recent */
 608                 os_memmove(s->p2p_client_list + i * ETH_ALEN,
 609                            s->p2p_client_list + (i + 1) * ETH_ALEN,
 610                            (s->num_p2p_clients - i - 1) * ETH_ALEN);
 611                 os_memcpy(s->p2p_client_list +
 612                           (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
 613                 found = 1;
 614                 break;
 615         }
 616
 617         if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
 618                 n = os_realloc_array(s->p2p_client_list,
 619                                      s->num_p2p_clients + 1, ETH_ALEN);
 620                 if (n == NULL)
 621                         return;
 622                 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
 623                 s->p2p_client_list = n;
 624                 s->num_p2p_clients++;
 625         } else if (!found) {
 626                 /* Not enough room for an additional entry - drop the oldest
 627                  * entry */
 628                 os_memmove(s->p2p_client_list,
 629                            s->p2p_client_list + ETH_ALEN,
 630                            (s->num_p2p_clients - 1) * ETH_ALEN);
 631                 os_memcpy(s->p2p_client_list +
 632                           (s->num_p2p_clients - 1) * ETH_ALEN,
 633                           addr, ETH_ALEN);
 634         }
 635
 636 #ifndef CONFIG_NO_CONFIG_WRITE
 637         if (wpa_s->parent->conf->update_config &&
 638             wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
 639                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
 640 #endif /* CONFIG_NO_CONFIG_WRITE */
 641 }
 642
 643
 644 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
 645                                            int success)
 646 {
 647         struct wpa_ssid *ssid;
 648         const char *ssid_txt;
 649         int client;
 650         int persistent;
 651         u8 go_dev_addr[ETH_ALEN];
 652         int network_id = -1;
 653
 654         /*
 655          * This callback is likely called for the main interface. Update wpa_s
 656          * to use the group interface if a new interface was created for the
 657          * group.
 658          */
 659         if (wpa_s->global->p2p_group_formation)
 660                 wpa_s = wpa_s->global->p2p_group_formation;
 661         wpa_s->global->p2p_group_formation = NULL;
 662         wpa_s->p2p_in_provisioning = 0;
 663
 664         if (!success) {
 665                 wpa_msg(wpa_s->parent, MSG_INFO,
 666                         P2P_EVENT_GROUP_FORMATION_FAILURE);
 667                 wpas_p2p_group_delete(wpa_s,
 668                                       P2P_GROUP_REMOVAL_FORMATION_FAILED);
 669                 return;
 670         }
 671
 672         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
 673
 674         ssid = wpa_s->current_ssid;
 675         if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
 676                 ssid->mode = WPAS_MODE_P2P_GO;
 677                 p2p_group_notif_formation_done(wpa_s->p2p_group);
 678                 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
 679         }
 680
 681         persistent = 0;
 682         if (ssid) {
 683                 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
 684                 client = ssid->mode == WPAS_MODE_INFRA;
 685                 if (ssid->mode == WPAS_MODE_P2P_GO) {
 686                         persistent = ssid->p2p_persistent_group;
 687                         os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
 688                                   ETH_ALEN);
 689                 } else
 690                         persistent = wpas_p2p_persistent_group(wpa_s,
 691                                                                go_dev_addr,
 692                                                                ssid->ssid,
 693                                                                ssid->ssid_len);
 694         } else {
 695                 ssid_txt = "";
 696                 client = wpa_s->p2p_group_interface ==
 697                         P2P_GROUP_INTERFACE_CLIENT;
 698                 os_memset(go_dev_addr, 0, ETH_ALEN);
 699         }
 700
 701         wpa_s->show_group_started = 0;
 702         if (client) {
 703                 /*
 704                  * Indicate event only after successfully completed 4-way
 705                  * handshake, i.e., when the interface is ready for data
 706                  * packets.
 707                  */
 708                 wpa_s->show_group_started = 1;
 709 #ifdef ANDROID_P2P
 710                 /* For client Second phase of Group formation (4-way handshake) can be still pending
 711                  * So we need to restore wpa_s->global->p2p_group_formation */
 712                 wpa_printf(MSG_INFO, "Restoring back wpa_s->global->p2p_group_formation to wpa_s %p\n", wpa_s);
 713                 wpa_s->global->p2p_group_formation = wpa_s;
 714 #endif
 715
 716         } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
 717                 char psk[65];
 718                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
 719                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 720                         "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
 721                         "%s",
 722                         wpa_s->ifname, ssid_txt, ssid->frequency, psk,
 723                         MAC2STR(go_dev_addr),
 724                         persistent ? " [PERSISTENT]" : "");
 725                 wpas_p2p_cross_connect_setup(wpa_s);
 726                 wpas_p2p_set_group_idle_timeout(wpa_s);
 727         } else {
 728                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 729                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 730                         "go_dev_addr=" MACSTR "%s",
 731                         wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
 732                         ssid && ssid->passphrase ? ssid->passphrase : "",
 733                         MAC2STR(go_dev_addr),
 734                         persistent ? " [PERSISTENT]" : "");
 735                 wpas_p2p_cross_connect_setup(wpa_s);
 736                 wpas_p2p_set_group_idle_timeout(wpa_s);
 737         }
 738
 739         if (persistent)
 740                 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
 741                                                              ssid, go_dev_addr);
 742         if (network_id < 0 && ssid)
 743                 network_id = ssid->id;
 744         if (!client)
 745                 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
 746 }
 747
 748
 749 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
 750                                            unsigned int freq,
 751                                            const u8 *dst, const u8 *src,
 752                                            const u8 *bssid,
 753                                            const u8 *data, size_t data_len,
 754                                            enum offchannel_send_action_result
 755                                            result)
 756 {
 757         enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
 758
 759         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
 760                 return;
 761         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
 762                 return;
 763
 764         switch (result) {
 765         case OFFCHANNEL_SEND_ACTION_SUCCESS:
 766                 res = P2P_SEND_ACTION_SUCCESS;
 767                 break;
 768         case OFFCHANNEL_SEND_ACTION_NO_ACK:
 769                 res = P2P_SEND_ACTION_NO_ACK;
 770                 break;
 771         case OFFCHANNEL_SEND_ACTION_FAILED:
 772                 res = P2P_SEND_ACTION_FAILED;
 773                 break;
 774         }
 775
 776         p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
 777
 778         if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
 779             wpa_s->pending_pd_before_join &&
 780             (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
 781              os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
 782                 wpa_s->pending_pd_before_join = 0;
 783                 if (wpa_s->p2p_fallback_to_go_neg) {
 784                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
 785                                 "during p2p_connect-auto");
 786                         wpas_p2p_fallback_to_go_neg(wpa_s, 0);
 787                         return;
 788                 }
 789
 790                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
 791                            "join-existing-group operation (no ACK for PD "
 792                            "Req)");
 793                 wpas_p2p_join_start(wpa_s);
 794         }
 795 }
 796
 797
 798 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
 799                             const u8 *src, const u8 *bssid, const u8 *buf,
 800                             size_t len, unsigned int wait_time)
 801 {
 802         struct wpa_supplicant *wpa_s = ctx;
 803         return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
 804                                       wait_time,
 805                                       wpas_p2p_send_action_tx_status, 1);
 806 }
 807
 808
 809 static void wpas_send_action_done(void *ctx)
 810 {
 811         struct wpa_supplicant *wpa_s = ctx;
 812         offchannel_send_action_done(wpa_s);
 813 }
 814
 815
 816 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
 817                                     struct p2p_go_neg_results *params)
 818 {
 819         if (wpa_s->go_params == NULL) {
 820                 wpa_s->go_params = os_malloc(sizeof(*params));
 821                 if (wpa_s->go_params == NULL)
 822                         return -1;
 823         }
 824         os_memcpy(wpa_s->go_params, params, sizeof(*params));
 825         return 0;
 826 }
 827
 828
 829 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
 830                                     struct p2p_go_neg_results *res)
 831 {
 832         wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
 833                    MAC2STR(res->peer_interface_addr));
 834         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
 835                           res->ssid, res->ssid_len);
 836         wpa_supplicant_ap_deinit(wpa_s);
 837         wpas_copy_go_neg_results(wpa_s, res);
 838         if (res->wps_method == WPS_PBC)
 839                 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
 840         else {
 841                 u16 dev_pw_id = DEV_PW_DEFAULT;
 842                 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
 843                         dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
 844                 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
 845                                    wpa_s->p2p_pin, 1, dev_pw_id);
 846         }
 847 }
 848
 849
 850 static void p2p_go_configured(void *ctx, void *data)
 851 {
 852         struct wpa_supplicant *wpa_s = ctx;
 853         struct p2p_go_neg_results *params = data;
 854         struct wpa_ssid *ssid;
 855         int network_id = -1;
 856
 857         ssid = wpa_s->current_ssid;
 858         if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
 859                 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
 860                 if (wpa_s->global->p2p_group_formation == wpa_s)
 861                         wpa_s->global->p2p_group_formation = NULL;
 862                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 863                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 864                         "go_dev_addr=" MACSTR "%s",
 865                         wpa_s->ifname,
 866                         wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
 867                         ssid->frequency,
 868                         params->passphrase ? params->passphrase : "",
 869                         MAC2STR(wpa_s->global->p2p_dev_addr),
 870                         params->persistent_group ? " [PERSISTENT]" : "");
 871
 872                 if (params->persistent_group)
 873                         network_id = wpas_p2p_store_persistent_group(
 874                                 wpa_s->parent, ssid,
 875                                 wpa_s->global->p2p_dev_addr);
 876                 if (network_id < 0)
 877                         network_id = ssid->id;
 878                 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
 879                 wpas_p2p_cross_connect_setup(wpa_s);
 880                 wpas_p2p_set_group_idle_timeout(wpa_s);
 881                 return;
 882         }
 883
 884         wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
 885         if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
 886                                               params->peer_interface_addr)) {
 887                 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
 888                            "filtering");
 889                 return;
 890         }
 891         if (params->wps_method == WPS_PBC)
 892                 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
 893                                           params->peer_device_addr);
 894         else if (wpa_s->p2p_pin[0])
 895                 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
 896                                           wpa_s->p2p_pin, NULL, 0);
 897         os_free(wpa_s->go_params);
 898         wpa_s->go_params = NULL;
 899 }
 900
 901
 902 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
 903                               struct p2p_go_neg_results *params,
 904                               int group_formation)
 905 {
 906         struct wpa_ssid *ssid;
 907
 908         if (wpas_copy_go_neg_results(wpa_s, params) < 0)
 909                 return;
 910
 911         ssid = wpa_config_add_network(wpa_s->conf);
 912         if (ssid == NULL)
 913                 return;
 914
 915         wpa_s->show_group_started = 0;
 916
 917         wpa_config_set_network_defaults(ssid);
 918         ssid->temporary = 1;
 919         ssid->p2p_group = 1;
 920         ssid->p2p_persistent_group = params->persistent_group;
 921         ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
 922                 WPAS_MODE_P2P_GO;
 923         ssid->frequency = params->freq;
 924         ssid->ht40 = params->ht40;
 925         ssid->ssid = os_zalloc(params->ssid_len + 1);
 926         if (ssid->ssid) {
 927                 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
 928                 ssid->ssid_len = params->ssid_len;
 929         }
 930         ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 931         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 932         ssid->proto = WPA_PROTO_RSN;
 933         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 934         ssid->passphrase = os_strdup(params->passphrase);
 935         ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
 936
 937         wpa_s->ap_configured_cb = p2p_go_configured;
 938         wpa_s->ap_configured_cb_ctx = wpa_s;
 939         wpa_s->ap_configured_cb_data = wpa_s->go_params;
 940         wpa_s->connect_without_scan = ssid;
 941         wpa_s->reassociate = 1;
 942         wpa_s->disconnected = 0;
 943         wpa_supplicant_req_scan(wpa_s, 0, 0);
 944 }
 945
 946
 947 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
 948                                   const struct wpa_supplicant *src)
 949 {
 950         struct wpa_config *d;
 951         const struct wpa_config *s;
 952
 953         d = dst->conf;
 954         s = src->conf;
 955
 956 #define C(n) if (s->n) d->n = os_strdup(s->n)
 957         C(device_name);
 958         C(manufacturer);
 959         C(model_name);
 960         C(model_number);
 961         C(serial_number);
 962         C(config_methods);
 963 #undef C
 964
 965         os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
 966         os_memcpy(d->sec_device_type, s->sec_device_type,
 967                   sizeof(d->sec_device_type));
 968         d->num_sec_device_types = s->num_sec_device_types;
 969
 970         d->p2p_group_idle = s->p2p_group_idle;
 971         d->p2p_intra_bss = s->p2p_intra_bss;
 972         d->persistent_reconnect = s->persistent_reconnect;
 973         d->max_num_sta = s->max_num_sta;
 974         d->pbc_in_m1 = s->pbc_in_m1;
 975 }
 976
 977
 978 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
 979                                         enum wpa_driver_if_type type)
 980 {
 981         char ifname[120], force_ifname[120];
 982
 983         if (wpa_s->pending_interface_name[0]) {
 984                 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
 985                            "- skip creation of a new one");
 986                 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
 987                         wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
 988                                    "unknown?! ifname='%s'",
 989                                    wpa_s->pending_interface_name);
 990                         return -1;
 991                 }
 992                 return 0;
 993         }
 994
 995         os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
 996                     wpa_s->p2p_group_idx);
 997         if (os_strlen(ifname) >= IFNAMSIZ &&
 998             os_strlen(wpa_s->ifname) < IFNAMSIZ) {
 999                 /* Try to avoid going over the IFNAMSIZ length limit */
1000                 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
1001                             wpa_s->p2p_group_idx);
1002         }
1003         force_ifname[0] = '\0';
1004
1005         wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1006                    ifname);
1007         wpa_s->p2p_group_idx++;
1008
1009         wpa_s->pending_interface_type = type;
1010         if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1011                            wpa_s->pending_interface_addr, NULL) < 0) {
1012                 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1013                            "interface");
1014                 return -1;
1015         }
1016
1017         if (force_ifname[0]) {
1018                 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1019                            force_ifname);
1020                 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1021                            sizeof(wpa_s->pending_interface_name));
1022         } else
1023                 os_strlcpy(wpa_s->pending_interface_name, ifname,
1024                            sizeof(wpa_s->pending_interface_name));
1025         wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1026                    MACSTR, wpa_s->pending_interface_name,
1027                    MAC2STR(wpa_s->pending_interface_addr));
1028
1029         return 0;
1030 }
1031
1032
1033 static void wpas_p2p_remove_pending_group_interface(
1034         struct wpa_supplicant *wpa_s)
1035 {
1036         if (!wpa_s->pending_interface_name[0] ||
1037             is_zero_ether_addr(wpa_s->pending_interface_addr))
1038                 return; /* No pending virtual interface */
1039
1040         wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1041                    wpa_s->pending_interface_name);
1042         wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1043                           wpa_s->pending_interface_name);
1044         os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1045         wpa_s->pending_interface_name[0] = '\0';
1046 }
1047
1048
1049 static struct wpa_supplicant *
1050 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1051 {
1052         struct wpa_interface iface;
1053         struct wpa_supplicant *group_wpa_s;
1054
1055         if (!wpa_s->pending_interface_name[0]) {
1056                 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1057                 if (!wpas_p2p_create_iface(wpa_s))
1058                         return NULL;
1059                 /*
1060                  * Something has forced us to remove the pending interface; try
1061                  * to create a new one and hope for the best that we will get
1062                  * the same local address.
1063                  */
1064                 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1065                                                  WPA_IF_P2P_CLIENT) < 0)
1066                         return NULL;
1067         }
1068
1069         os_memset(&iface, 0, sizeof(iface));
1070         iface.ifname = wpa_s->pending_interface_name;
1071         iface.driver = wpa_s->driver->name;
1072         iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1073         iface.driver_param = wpa_s->conf->driver_param;
1074         group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1075         if (group_wpa_s == NULL) {
1076                 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1077                            "wpa_supplicant interface");
1078                 return NULL;
1079         }
1080         wpa_s->pending_interface_name[0] = '\0';
1081         group_wpa_s->parent = wpa_s;
1082         group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1083                 P2P_GROUP_INTERFACE_CLIENT;
1084         wpa_s->global->p2p_group_formation = group_wpa_s;
1085
1086         wpas_p2p_clone_config(group_wpa_s, wpa_s);
1087
1088         return group_wpa_s;
1089 }
1090
1091
1092 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1093                                              void *timeout_ctx)
1094 {
1095         struct wpa_supplicant *wpa_s = eloop_ctx;
1096         wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1097         if (wpa_s->global->p2p)
1098                 p2p_group_formation_failed(wpa_s->global->p2p);
1099         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1100                 wpa_drv_p2p_group_formation_failed(wpa_s);
1101         wpas_group_formation_completed(wpa_s, 0);
1102 }
1103
1104
1105 void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1106 {
1107         struct wpa_supplicant *wpa_s = ctx;
1108
1109         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1110                 wpa_drv_cancel_remain_on_channel(wpa_s);
1111                 wpa_s->off_channel_freq = 0;
1112                 wpa_s->roc_waiting_drv_freq = 0;
1113         }
1114
1115         if (res->status) {
1116                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
1117                         res->status);
1118                 wpas_notify_p2p_go_neg_completed(wpa_s, res);
1119                 wpas_p2p_remove_pending_group_interface(wpa_s);
1120                 return;
1121         }
1122
1123         if (wpa_s->p2p_go_ht40)
1124                 res->ht40 = 1;
1125
1126         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
1127         wpas_notify_p2p_go_neg_completed(wpa_s, res);
1128
1129         if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1130                 struct wpa_ssid *ssid;
1131                 ssid = wpa_config_get_network(wpa_s->conf,
1132                                               wpa_s->p2p_persistent_id);
1133                 if (ssid && ssid->disabled == 2 &&
1134                     ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1135                         size_t len = os_strlen(ssid->passphrase);
1136                         wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1137                                    "on requested persistent group");
1138                         os_memcpy(res->passphrase, ssid->passphrase, len);
1139                         res->passphrase[len] = '\0';
1140                 }
1141         }
1142
1143         if (wpa_s->create_p2p_iface) {
1144                 struct wpa_supplicant *group_wpa_s =
1145                         wpas_p2p_init_group_interface(wpa_s, res->role_go);
1146                 if (group_wpa_s == NULL) {
1147                         wpas_p2p_remove_pending_group_interface(wpa_s);
1148                         return;
1149                 }
1150                 if (group_wpa_s != wpa_s) {
1151                         os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1152                                   sizeof(group_wpa_s->p2p_pin));
1153                         group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1154                 }
1155                 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1156                 wpa_s->pending_interface_name[0] = '\0';
1157                 group_wpa_s->p2p_in_provisioning = 1;
1158
1159                 if (res->role_go)
1160                         wpas_start_wps_go(group_wpa_s, res, 1);
1161                 else
1162                         wpas_start_wps_enrollee(group_wpa_s, res);
1163         } else {
1164                 wpa_s->p2p_in_provisioning = 1;
1165                 wpa_s->global->p2p_group_formation = wpa_s;
1166
1167                 if (res->role_go)
1168                         wpas_start_wps_go(wpa_s, res, 1);
1169                 else
1170                         wpas_start_wps_enrollee(ctx, res);
1171         }
1172
1173         wpa_s->p2p_long_listen = 0;
1174         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1175
1176         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1177         eloop_register_timeout(15 + res->peer_config_timeout / 100,
1178                                (res->peer_config_timeout % 100) * 10000,
1179                                wpas_p2p_group_formation_timeout, wpa_s, NULL);
1180 }
1181
1182
1183 void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1184 {
1185         struct wpa_supplicant *wpa_s = ctx;
1186         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1187                 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1188
1189         wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1190 }
1191
1192
1193 void wpas_dev_found(void *ctx, const u8 *addr,
1194                     const struct p2p_peer_info *info,
1195                     int new_device)
1196 {
1197 #ifndef CONFIG_NO_STDOUT_DEBUG
1198         struct wpa_supplicant *wpa_s = ctx;
1199         char devtype[WPS_DEV_TYPE_BUFSIZE];
1200 #define WFD_DEV_INFO_SIZE 9
1201         char wfd_dev_info_hex[2 * WFD_DEV_INFO_SIZE + 1];
1202
1203 #ifdef CONFIG_WIFI_DISPLAY
1204         if (info->wfd_subelems) {
1205                 wpa_snprintf_hex(wfd_dev_info_hex, sizeof(wfd_dev_info_hex),
1206                                         wpabuf_head(info->wfd_subelems),
1207                                         WFD_DEV_INFO_SIZE);
1208         }
1209 #endif /* CONFIG_WIFI_DISPLAY */
1210
1211         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1212                 " p2p_dev_addr=" MACSTR
1213                 " pri_dev_type=%s name='%s' config_methods=0x%x "
1214                 "dev_capab=0x%x group_capab=0x%x%s%s",
1215                 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1216                 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1217                                      sizeof(devtype)),
1218                 info->device_name, info->config_methods,
1219                 info->dev_capab, info->group_capab,
1220                 wfd_dev_info_hex[0] ? " wfd_dev_info=0x" : "", wfd_dev_info_hex);
1221 #endif /* CONFIG_NO_STDOUT_DEBUG */
1222
1223         wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1224 }
1225
1226
1227 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1228 {
1229         struct wpa_supplicant *wpa_s = ctx;
1230
1231         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1232                 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1233
1234         wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1235 }
1236
1237
1238 static int wpas_start_listen(void *ctx, unsigned int freq,
1239                              unsigned int duration,
1240                              const struct wpabuf *probe_resp_ie)
1241 {
1242         struct wpa_supplicant *wpa_s = ctx;
1243
1244         wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1245
1246         if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1247                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1248                            "report received Probe Request frames");
1249                 return -1;
1250         }
1251
1252         wpa_s->pending_listen_freq = freq;
1253         wpa_s->pending_listen_duration = duration;
1254
1255         if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1256                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1257                            "to remain on channel (%u MHz) for Listen "
1258                            "state", freq);
1259                 wpa_s->pending_listen_freq = 0;
1260                 return -1;
1261         }
1262         wpa_s->off_channel_freq = 0;
1263         wpa_s->roc_waiting_drv_freq = freq;
1264
1265         return 0;
1266 }
1267
1268
1269 static void wpas_stop_listen(void *ctx)
1270 {
1271         struct wpa_supplicant *wpa_s = ctx;
1272         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1273                 wpa_drv_cancel_remain_on_channel(wpa_s);
1274                 wpa_s->off_channel_freq = 0;
1275                 wpa_s->roc_waiting_drv_freq = 0;
1276         }
1277         wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1278         wpa_drv_probe_req_report(wpa_s, 0);
1279 }
1280
1281
1282 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1283 {
1284         struct wpa_supplicant *wpa_s = ctx;
1285         return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
1286 }
1287
1288
1289 static struct p2p_srv_bonjour *
1290 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1291                              const struct wpabuf *query)
1292 {
1293         struct p2p_srv_bonjour *bsrv;
1294         size_t len;
1295
1296         len = wpabuf_len(query);
1297         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1298                          struct p2p_srv_bonjour, list) {
1299                 if (len == wpabuf_len(bsrv->query) &&
1300                     os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1301                               len) == 0)
1302                         return bsrv;
1303         }
1304         return NULL;
1305 }
1306
1307
1308 static struct p2p_srv_upnp *
1309 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1310                           const char *service)
1311 {
1312         struct p2p_srv_upnp *usrv;
1313
1314         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1315                          struct p2p_srv_upnp, list) {
1316                 if (version == usrv->version &&
1317                     os_strcmp(service, usrv->service) == 0)
1318                         return usrv;
1319         }
1320         return NULL;
1321 }
1322
1323
1324 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1325                                         u8 srv_trans_id)
1326 {
1327         u8 *len_pos;
1328
1329         if (wpabuf_tailroom(resp) < 5)
1330                 return;
1331
1332         /* Length (to be filled) */
1333         len_pos = wpabuf_put(resp, 2);
1334         wpabuf_put_u8(resp, srv_proto);
1335         wpabuf_put_u8(resp, srv_trans_id);
1336         /* Status Code */
1337         wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1338         /* Response Data: empty */
1339         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1340 }
1341
1342
1343 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1344                                 struct wpabuf *resp, u8 srv_trans_id)
1345 {
1346         struct p2p_srv_bonjour *bsrv;
1347         u8 *len_pos;
1348
1349         wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1350
1351         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1352                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1353                 return;
1354         }
1355
1356         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1357                          struct p2p_srv_bonjour, list) {
1358                 if (wpabuf_tailroom(resp) <
1359                     5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1360                         return;
1361                 /* Length (to be filled) */
1362                 len_pos = wpabuf_put(resp, 2);
1363                 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1364                 wpabuf_put_u8(resp, srv_trans_id);
1365                 /* Status Code */
1366                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1367                 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1368                                   wpabuf_head(bsrv->resp),
1369                                   wpabuf_len(bsrv->resp));
1370                 /* Response Data */
1371                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1372                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1373                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1374                              2);
1375         }
1376 }
1377
1378
1379 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1380                                 struct wpabuf *resp, u8 srv_trans_id,
1381                                 const u8 *query, size_t query_len)
1382 {
1383         struct p2p_srv_bonjour *bsrv;
1384         struct wpabuf buf;
1385         u8 *len_pos;
1386
1387         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1388                           query, query_len);
1389         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1390                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1391                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1392                                             srv_trans_id);
1393                 return;
1394         }
1395
1396         if (query_len == 0) {
1397                 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1398                 return;
1399         }
1400
1401         if (wpabuf_tailroom(resp) < 5)
1402                 return;
1403         /* Length (to be filled) */
1404         len_pos = wpabuf_put(resp, 2);
1405         wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1406         wpabuf_put_u8(resp, srv_trans_id);
1407
1408         wpabuf_set(&buf, query, query_len);
1409         bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1410         if (bsrv == NULL) {
1411                 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1412                            "available");
1413
1414                 /* Status Code */
1415                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1416                 /* Response Data: empty */
1417                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1418                              2);
1419                 return;
1420         }
1421
1422         /* Status Code */
1423         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1424         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1425                           wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1426
1427         if (wpabuf_tailroom(resp) >=
1428             wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1429                 /* Response Data */
1430                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1431                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1432         }
1433         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1434 }
1435
1436
1437 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1438                              struct wpabuf *resp, u8 srv_trans_id)
1439 {
1440         struct p2p_srv_upnp *usrv;
1441         u8 *len_pos;
1442
1443         wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1444
1445         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1446                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1447                 return;
1448         }
1449
1450         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1451                          struct p2p_srv_upnp, list) {
1452                 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1453                         return;
1454
1455                 /* Length (to be filled) */
1456                 len_pos = wpabuf_put(resp, 2);
1457                 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1458                 wpabuf_put_u8(resp, srv_trans_id);
1459
1460                 /* Status Code */
1461                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1462                 /* Response Data */
1463                 wpabuf_put_u8(resp, usrv->version);
1464                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1465                            usrv->service);
1466                 wpabuf_put_str(resp, usrv->service);
1467                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1468                              2);
1469         }
1470 }
1471
1472
1473 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1474                              struct wpabuf *resp, u8 srv_trans_id,
1475                              const u8 *query, size_t query_len)
1476 {
1477         struct p2p_srv_upnp *usrv;
1478         u8 *len_pos;
1479         u8 version;
1480         char *str;
1481         int count = 0;
1482
1483         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1484                           query, query_len);
1485
1486         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1487                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1488                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1489                                             srv_trans_id);
1490                 return;
1491         }
1492
1493         if (query_len == 0) {
1494                 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1495                 return;
1496         }
1497
1498         if (wpabuf_tailroom(resp) < 5)
1499                 return;
1500
1501         /* Length (to be filled) */
1502         len_pos = wpabuf_put(resp, 2);
1503         wpabuf_put_u8(resp, P2P_SERV_UPNP);
1504         wpabuf_put_u8(resp, srv_trans_id);
1505
1506         version = query[0];
1507         str = os_malloc(query_len);
1508         if (str == NULL)
1509                 return;
1510         os_memcpy(str, query + 1, query_len - 1);
1511         str[query_len - 1] = '\0';
1512
1513         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1514                          struct p2p_srv_upnp, list) {
1515                 if (version != usrv->version)
1516                         continue;
1517
1518                 if (os_strcmp(str, "ssdp:all") != 0 &&
1519                     os_strstr(usrv->service, str) == NULL)
1520                         continue;
1521
1522                 if (wpabuf_tailroom(resp) < 2)
1523                         break;
1524                 if (count == 0) {
1525                         /* Status Code */
1526                         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1527                         /* Response Data */
1528                         wpabuf_put_u8(resp, version);
1529                 } else
1530                         wpabuf_put_u8(resp, ',');
1531
1532                 count++;
1533
1534                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1535                            usrv->service);
1536                 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1537                         break;
1538                 wpabuf_put_str(resp, usrv->service);
1539         }
1540         os_free(str);
1541
1542         if (count == 0) {
1543                 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1544                            "available");
1545                 /* Status Code */
1546                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1547                 /* Response Data: empty */
1548         }
1549
1550         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1551 }
1552
1553
1554 #ifdef CONFIG_WIFI_DISPLAY
1555 static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
1556                             struct wpabuf *resp, u8 srv_trans_id,
1557                             const u8 *query, size_t query_len)
1558 {
1559         const u8 *pos;
1560         u8 role;
1561         u8 *len_pos;
1562
1563         wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
1564
1565         if (!wpa_s->global->wifi_display) {
1566                 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
1567                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
1568                                             srv_trans_id);
1569                 return;
1570         }
1571
1572         if (query_len < 1) {
1573                 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
1574                            "Role");
1575                 return;
1576         }
1577
1578         if (wpabuf_tailroom(resp) < 5)
1579                 return;
1580
1581         pos = query;
1582         role = *pos++;
1583         wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
1584
1585         /* TODO: role specific handling */
1586
1587         /* Length (to be filled) */
1588         len_pos = wpabuf_put(resp, 2);
1589         wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
1590         wpabuf_put_u8(resp, srv_trans_id);
1591         wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
1592
1593         while (pos < query + query_len) {
1594                 if (*pos < MAX_WFD_SUBELEMS &&
1595                     wpa_s->global->wfd_subelem[*pos] &&
1596                     wpabuf_tailroom(resp) >=
1597                     wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
1598                         wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
1599                                    "subelement %u", *pos);
1600                         wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
1601                 }
1602                 pos++;
1603         }
1604
1605         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1606 }
1607 #endif /* CONFIG_WIFI_DISPLAY */
1608
1609
1610 void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1611                      u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1612 {
1613         struct wpa_supplicant *wpa_s = ctx;
1614         const u8 *pos = tlvs;
1615         const u8 *end = tlvs + tlvs_len;
1616         const u8 *tlv_end;
1617         u16 slen;
1618         struct wpabuf *resp;
1619         u8 srv_proto, srv_trans_id;
1620         size_t buf_len;
1621         char *buf;
1622
1623         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1624                     tlvs, tlvs_len);
1625         buf_len = 2 * tlvs_len + 1;
1626         buf = os_malloc(buf_len);
1627         if (buf) {
1628                 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1629                 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1630                              MACSTR " %u %u %s",
1631                              freq, MAC2STR(sa), dialog_token, update_indic,
1632                              buf);
1633                 os_free(buf);
1634         }
1635
1636         if (wpa_s->p2p_sd_over_ctrl_iface) {
1637                 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1638                                            update_indic, tlvs, tlvs_len);
1639                 return; /* to be processed by an external program */
1640         }
1641
1642         resp = wpabuf_alloc(10000);
1643         if (resp == NULL)
1644                 return;
1645
1646         while (pos + 1 < end) {
1647                 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1648                 slen = WPA_GET_LE16(pos);
1649                 pos += 2;
1650                 if (pos + slen > end || slen < 2) {
1651                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1652                                    "length");
1653                         wpabuf_free(resp);
1654                         return;
1655                 }
1656                 tlv_end = pos + slen;
1657
1658                 srv_proto = *pos++;
1659                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1660                            srv_proto);
1661                 srv_trans_id = *pos++;
1662                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1663                            srv_trans_id);
1664
1665                 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1666                             pos, tlv_end - pos);
1667
1668
1669                 if (wpa_s->force_long_sd) {
1670                         wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1671                                    "response");
1672                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1673                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1674                         goto done;
1675                 }
1676
1677                 switch (srv_proto) {
1678                 case P2P_SERV_ALL_SERVICES:
1679                         wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1680                                    "for all services");
1681                         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1682                             dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1683                                 wpa_printf(MSG_DEBUG, "P2P: No service "
1684                                            "discovery protocols available");
1685                                 wpas_sd_add_proto_not_avail(
1686                                         resp, P2P_SERV_ALL_SERVICES,
1687                                         srv_trans_id);
1688                                 break;
1689                         }
1690                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1691                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1692                         break;
1693                 case P2P_SERV_BONJOUR:
1694                         wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1695                                             pos, tlv_end - pos);
1696                         break;
1697                 case P2P_SERV_UPNP:
1698                         wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1699                                          pos, tlv_end - pos);
1700                         break;
1701 #ifdef CONFIG_WIFI_DISPLAY
1702                 case P2P_SERV_WIFI_DISPLAY:
1703                         wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
1704                                         pos, tlv_end - pos);
1705                         break;
1706 #endif /* CONFIG_WIFI_DISPLAY */
1707                 default:
1708                         wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1709                                    "protocol %u", srv_proto);
1710                         wpas_sd_add_proto_not_avail(resp, srv_proto,
1711                                                     srv_trans_id);
1712                         break;
1713                 }
1714
1715                 pos = tlv_end;
1716         }
1717
1718 done:
1719         wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1720                                    update_indic, tlvs, tlvs_len);
1721
1722         wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1723
1724         wpabuf_free(resp);
1725 }
1726
1727
1728 void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1729                       const u8 *tlvs, size_t tlvs_len)
1730 {
1731         struct wpa_supplicant *wpa_s = ctx;
1732         const u8 *pos = tlvs;
1733         const u8 *end = tlvs + tlvs_len;
1734         const u8 *tlv_end;
1735         u16 slen;
1736         size_t buf_len;
1737         char *buf;
1738
1739         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1740                     tlvs, tlvs_len);
1741         if (tlvs_len > 1500) {
1742                 /* TODO: better way for handling this */
1743                 wpa_msg_ctrl(wpa_s, MSG_INFO,
1744                              P2P_EVENT_SERV_DISC_RESP MACSTR
1745                              " %u <long response: %u bytes>",
1746                              MAC2STR(sa), update_indic,
1747                              (unsigned int) tlvs_len);
1748         } else {
1749                 buf_len = 2 * tlvs_len + 1;
1750                 buf = os_malloc(buf_len);
1751                 if (buf) {
1752                         wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1753                         wpa_msg_ctrl(wpa_s, MSG_INFO,
1754                                      P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1755                                      MAC2STR(sa), update_indic, buf);
1756                         os_free(buf);
1757                 }
1758         }
1759
1760         while (pos < end) {
1761                 u8 srv_proto, srv_trans_id, status;
1762
1763                 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1764                 slen = WPA_GET_LE16(pos);
1765                 pos += 2;
1766                 if (pos + slen > end || slen < 3) {
1767                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1768                                    "length");
1769                         return;
1770                 }
1771                 tlv_end = pos + slen;
1772
1773                 srv_proto = *pos++;
1774                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1775                            srv_proto);
1776                 srv_trans_id = *pos++;
1777                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1778                            srv_trans_id);
1779                 status = *pos++;
1780                 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1781                            status);
1782
1783                 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1784                             pos, tlv_end - pos);
1785
1786                 pos = tlv_end;
1787         }
1788
1789         wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
1790 }
1791
1792
1793 u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1794                         const struct wpabuf *tlvs)
1795 {
1796         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1797                 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
1798         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1799                 return 0;
1800         return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1801 }
1802
1803
1804 u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1805                              u8 version, const char *query)
1806 {
1807         struct wpabuf *tlvs;
1808         u64 ret;
1809
1810         tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1811         if (tlvs == NULL)
1812                 return 0;
1813         wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1814         wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1815         wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1816         wpabuf_put_u8(tlvs, version);
1817         wpabuf_put_str(tlvs, query);
1818         ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1819         wpabuf_free(tlvs);
1820         return ret;
1821 }
1822
1823
1824 #ifdef CONFIG_WIFI_DISPLAY
1825
1826 static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
1827                                    const struct wpabuf *tlvs)
1828 {
1829         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1830                 return 0;
1831         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1832                 return 0;
1833         return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
1834 }
1835
1836
1837 #define MAX_WFD_SD_SUBELEMS 20
1838
1839 static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
1840                                 const char *subelems)
1841 {
1842         u8 *len;
1843         const char *pos;
1844         int val;
1845         int count = 0;
1846
1847         len = wpabuf_put(tlvs, 2);
1848         wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
1849         wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
1850
1851         wpabuf_put_u8(tlvs, role);
1852
1853         pos = subelems;
1854         while (*pos) {
1855                 val = atoi(pos);
1856                 if (val >= 0 && val < 256) {
1857                         wpabuf_put_u8(tlvs, val);
1858                         count++;
1859                         if (count == MAX_WFD_SD_SUBELEMS)
1860                                 break;
1861                 }
1862                 pos = os_strchr(pos + 1, ',');
1863                 if (pos == NULL)
1864                         break;
1865                 pos++;
1866         }
1867
1868         WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
1869 }
1870
1871
1872 u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
1873                                      const u8 *dst, const char *role)
1874 {
1875         struct wpabuf *tlvs;
1876         u64 ret;
1877         const char *subelems;
1878         u8 id = 1;
1879
1880         subelems = os_strchr(role, ' ');
1881         if (subelems == NULL)
1882                 return 0;
1883         subelems++;
1884
1885         tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
1886         if (tlvs == NULL)
1887                 return 0;
1888
1889         if (os_strstr(role, "[source]"))
1890                 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
1891         if (os_strstr(role, "[pri-sink]"))
1892                 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
1893         if (os_strstr(role, "[sec-sink]"))
1894                 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
1895         if (os_strstr(role, "[source+sink]"))
1896                 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
1897
1898         ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
1899         wpabuf_free(tlvs);
1900         return ret;
1901 }
1902
1903 #endif /* CONFIG_WIFI_DISPLAY */
1904
1905
1906 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
1907 {
1908         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1909                 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
1910         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1911                 return -1;
1912         return p2p_sd_cancel_request(wpa_s->global->p2p,
1913                                      (void *) (uintptr_t) req);
1914 }
1915
1916
1917 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1918                           const u8 *dst, u8 dialog_token,
1919                           const struct wpabuf *resp_tlvs)
1920 {
1921         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1922                 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1923                                         resp_tlvs);
1924                 return;
1925         }
1926         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1927                 return;
1928         p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1929                         resp_tlvs);
1930 }
1931
1932 #ifdef ANDROID_P2P
1933 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s, int action)
1934 #else
1935 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1936 #endif
1937 {
1938         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1939                 wpa_drv_p2p_service_update(wpa_s);
1940                 return;
1941         }
1942         if (wpa_s->global->p2p)
1943 #ifdef ANDROID_P2P
1944                 p2p_sd_service_update(wpa_s->global->p2p, action);
1945 #else
1946                 p2p_sd_service_update(wpa_s->global->p2p);
1947 #endif
1948 }
1949
1950
1951 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1952 {
1953         dl_list_del(&bsrv->list);
1954         wpabuf_free(bsrv->query);
1955         wpabuf_free(bsrv->resp);
1956         os_free(bsrv);
1957 }
1958
1959
1960 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1961 {
1962         dl_list_del(&usrv->list);
1963         os_free(usrv->service);
1964         os_free(usrv);
1965 }
1966
1967
1968 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1969 {
1970         struct p2p_srv_bonjour *bsrv, *bn;
1971         struct p2p_srv_upnp *usrv, *un;
1972
1973         dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1974                               struct p2p_srv_bonjour, list)
1975                 wpas_p2p_srv_bonjour_free(bsrv);
1976
1977         dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1978                               struct p2p_srv_upnp, list)
1979                 wpas_p2p_srv_upnp_free(usrv);
1980
1981 #ifdef ANDROID_P2P
1982         wpas_p2p_sd_service_update(wpa_s, SRV_FLUSH);
1983 #else
1984         wpas_p2p_sd_service_update(wpa_s);
1985 #endif
1986 }
1987
1988
1989 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1990                                  struct wpabuf *query, struct wpabuf *resp)
1991 {
1992         struct p2p_srv_bonjour *bsrv;
1993
1994         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1995         if (bsrv) {
1996                 wpabuf_free(query);
1997                 wpabuf_free(bsrv->resp);
1998                 bsrv->resp = resp;
1999                 return 0;
2000         }
2001
2002         bsrv = os_zalloc(sizeof(*bsrv));
2003         if (bsrv == NULL)
2004                 return -1;
2005         bsrv->query = query;
2006         bsrv->resp = resp;
2007         dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
2008
2009 #ifdef ANDROID_P2P
2010         wpas_p2p_sd_service_update(wpa_s, SRV_ADD);
2011 #else
2012         wpas_p2p_sd_service_update(wpa_s);
2013 #endif
2014         return 0;
2015 }
2016
2017
2018 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
2019                                  const struct wpabuf *query)
2020 {
2021         struct p2p_srv_bonjour *bsrv;
2022
2023         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
2024         if (bsrv == NULL)
2025                 return -1;
2026         wpas_p2p_srv_bonjour_free(bsrv);
2027 #ifdef ANDROID_P2P
2028         wpas_p2p_sd_service_update(wpa_s, SRV_DEL);
2029 #else
2030         wpas_p2p_sd_service_update(wpa_s);
2031 #endif
2032         return 0;
2033 }
2034
2035
2036 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
2037                               const char *service)
2038 {
2039         struct p2p_srv_upnp *usrv;
2040
2041         if (wpas_p2p_service_get_upnp(wpa_s, version, service))
2042                 return 0; /* Already listed */
2043         usrv = os_zalloc(sizeof(*usrv));
2044         if (usrv == NULL)
2045                 return -1;
2046         usrv->version = version;
2047         usrv->service = os_strdup(service);
2048         if (usrv->service == NULL) {
2049                 os_free(usrv);
2050                 return -1;
2051         }
2052         dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
2053
2054 #ifdef ANDROID_P2P
2055         wpas_p2p_sd_service_update(wpa_s, SRV_ADD);
2056 #else
2057         wpas_p2p_sd_service_update(wpa_s);
2058 #endif
2059         return 0;
2060 }
2061
2062
2063 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
2064                               const char *service)
2065 {
2066         struct p2p_srv_upnp *usrv;
2067
2068         usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
2069         if (usrv == NULL)
2070                 return -1;
2071         wpas_p2p_srv_upnp_free(usrv);
2072 #ifdef ANDROID_P2P
2073         wpas_p2p_sd_service_update(wpa_s, SRV_DEL);
2074 #else
2075         wpas_p2p_sd_service_update(wpa_s);
2076 #endif
2077         return 0;
2078 }
2079
2080
2081 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2082                                          const u8 *peer, const char *params,
2083                                          unsigned int generated_pin)
2084 {
2085         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
2086                 MAC2STR(peer), generated_pin, params);
2087 }
2088
2089
2090 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2091                                         const u8 *peer, const char *params)
2092 {
2093         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
2094                 MAC2STR(peer), params);
2095 }
2096
2097
2098 void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2099                         const u8 *dev_addr, const u8 *pri_dev_type,
2100                         const char *dev_name, u16 supp_config_methods,
2101                         u8 dev_capab, u8 group_capab, const u8 *group_id,
2102                         size_t group_id_len)
2103 {
2104         struct wpa_supplicant *wpa_s = ctx;
2105         char devtype[WPS_DEV_TYPE_BUFSIZE];
2106         char params[300];
2107         u8 empty_dev_type[8];
2108         unsigned int generated_pin = 0;
2109         struct wpa_supplicant *group = NULL;
2110
2111         if (group_id) {
2112                 for (group = wpa_s->global->ifaces; group; group = group->next)
2113                 {
2114                         struct wpa_ssid *s = group->current_ssid;
2115                         if (s != NULL &&
2116                             s->mode == WPAS_MODE_P2P_GO &&
2117                             group_id_len - ETH_ALEN == s->ssid_len &&
2118                             os_memcmp(group_id + ETH_ALEN, s->ssid,
2119                                       s->ssid_len) == 0)
2120                                 break;
2121                 }
2122         }
2123
2124         if (pri_dev_type == NULL) {
2125                 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2126                 pri_dev_type = empty_dev_type;
2127         }
2128         os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2129                     " pri_dev_type=%s name='%s' config_methods=0x%x "
2130                     "dev_capab=0x%x group_capab=0x%x%s%s",
2131                     MAC2STR(dev_addr),
2132                     wps_dev_type_bin2str(pri_dev_type, devtype,
2133                                          sizeof(devtype)),
2134                     dev_name, supp_config_methods, dev_capab, group_capab,
2135                     group ? " group=" : "",
2136                     group ? group->ifname : "");
2137         params[sizeof(params) - 1] = '\0';
2138
2139         if (config_methods & WPS_CONFIG_DISPLAY) {
2140                 generated_pin = wps_generate_pin();
2141                 wpas_prov_disc_local_display(wpa_s, peer, params,
2142                                              generated_pin);
2143         } else if (config_methods & WPS_CONFIG_KEYPAD)
2144                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2145         else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2146                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
2147                         "%s", MAC2STR(peer), params);
2148
2149         wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2150                                             P2P_PROV_DISC_SUCCESS,
2151                                             config_methods, generated_pin);
2152 }
2153
2154
2155 void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2156 {
2157         struct wpa_supplicant *wpa_s = ctx;
2158         unsigned int generated_pin = 0;
2159         char params[20];
2160
2161         if (wpa_s->pending_pd_before_join &&
2162             (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2163              os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2164                 wpa_s->pending_pd_before_join = 0;
2165                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2166                            "join-existing-group operation");
2167                 wpas_p2p_join_start(wpa_s);
2168                 return;
2169         }
2170
2171         if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2172             wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2173                 os_snprintf(params, sizeof(params), " peer_go=%d",
2174                             wpa_s->pending_pd_use == AUTO_PD_JOIN);
2175         else
2176                 params[0] = '\0';
2177
2178         if (config_methods & WPS_CONFIG_DISPLAY)
2179                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2180         else if (config_methods & WPS_CONFIG_KEYPAD) {
2181                 generated_pin = wps_generate_pin();
2182                 wpas_prov_disc_local_display(wpa_s, peer, params,
2183                                              generated_pin);
2184         } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2185                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR
2186                         "%s", MAC2STR(peer), params);
2187
2188         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2189                                             P2P_PROV_DISC_SUCCESS,
2190                                             config_methods, generated_pin);
2191 }
2192
2193
2194 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2195                                 enum p2p_prov_disc_status status)
2196 {
2197         struct wpa_supplicant *wpa_s = ctx;
2198
2199         if (wpa_s->p2p_fallback_to_go_neg) {
2200                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2201                         "failed - fall back to GO Negotiation");
2202                 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2203                 return;
2204         }
2205
2206         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2207                 " p2p_dev_addr=" MACSTR " status=%d",
2208                 MAC2STR(peer), status);
2209
2210         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2211                                             status, 0, 0);
2212 }
2213
2214
2215 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2216                                   const u8 *go_dev_addr, const u8 *ssid,
2217                                   size_t ssid_len, int *go, u8 *group_bssid,
2218                                   int *force_freq, int persistent_group)
2219 {
2220         struct wpa_supplicant *wpa_s = ctx;
2221         struct wpa_ssid *s;
2222         u8 cur_bssid[ETH_ALEN];
2223         int res;
2224         struct wpa_supplicant *grp;
2225
2226         if (!persistent_group) {
2227                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2228                            " to join an active group", MAC2STR(sa));
2229                 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2230                     (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2231                      == 0 ||
2232                      os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2233                         wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2234                                    "authorized invitation");
2235                         goto accept_inv;
2236                 }
2237                 /*
2238                  * Do not accept the invitation automatically; notify user and
2239                  * request approval.
2240                  */
2241                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2242         }
2243
2244         grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2245         if (grp) {
2246                 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2247                            "running persistent group");
2248                 if (*go)
2249                         os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2250                 goto accept_inv;
2251         }
2252
2253         if (!wpa_s->conf->persistent_reconnect)
2254                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2255
2256         for (s = wpa_s->conf->ssid; s; s = s->next) {
2257                 if (s->disabled == 2 &&
2258                     os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2259                     s->ssid_len == ssid_len &&
2260                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
2261                         break;
2262         }
2263
2264         if (!s) {
2265                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2266                            " requested reinvocation of an unknown group",
2267                            MAC2STR(sa));
2268                 return P2P_SC_FAIL_UNKNOWN_GROUP;
2269         }
2270
2271         if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2272                 *go = 1;
2273                 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2274                         wpa_printf(MSG_DEBUG, "P2P: The only available "
2275                                    "interface is already in use - reject "
2276                                    "invitation");
2277                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2278                 }
2279                 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2280         } else if (s->mode == WPAS_MODE_P2P_GO) {
2281                 *go = 1;
2282                 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2283                 {
2284                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2285                                    "interface address for the group");
2286                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2287                 }
2288                 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2289                           ETH_ALEN);
2290         }
2291
2292 accept_inv:
2293         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
2294             wpa_s->assoc_freq) {
2295                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2296                            "the channel we are already using");
2297                 *force_freq = wpa_s->assoc_freq;
2298         }
2299
2300         res = wpa_drv_shared_freq(wpa_s);
2301         if (res > 0) {
2302                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2303                            "with the channel we are already using on a "
2304                            "shared interface");
2305                 *force_freq = res;
2306         }
2307
2308         return P2P_SC_SUCCESS;
2309 }
2310
2311
2312 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2313                                      const u8 *ssid, size_t ssid_len,
2314                                      const u8 *go_dev_addr, u8 status,
2315                                      int op_freq)
2316 {
2317         struct wpa_supplicant *wpa_s = ctx;
2318         struct wpa_ssid *s;
2319
2320         for (s = wpa_s->conf->ssid; s; s = s->next) {
2321                 if (s->disabled == 2 &&
2322                     s->ssid_len == ssid_len &&
2323                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
2324                         break;
2325         }
2326
2327         if (status == P2P_SC_SUCCESS) {
2328                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2329                            " was accepted; op_freq=%d MHz",
2330                            MAC2STR(sa), op_freq);
2331                 if (s) {
2332                         wpas_p2p_group_add_persistent(
2333                                 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0, 0);
2334                 } else if (bssid) {
2335                         wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2336                                       wpa_s->p2p_wps_method, 0);
2337                 }
2338                 return;
2339         }
2340
2341         if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2342                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2343                            " was rejected (status %u)", MAC2STR(sa), status);
2344                 return;
2345         }
2346
2347         if (!s) {
2348                 if (bssid) {
2349                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2350                                 "sa=" MACSTR " go_dev_addr=" MACSTR
2351                                 " bssid=" MACSTR " unknown-network",
2352                                 MAC2STR(sa), MAC2STR(go_dev_addr),
2353                                 MAC2STR(bssid));
2354                 } else {
2355                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2356                                 "sa=" MACSTR " go_dev_addr=" MACSTR
2357                                 " unknown-network",
2358                                 MAC2STR(sa), MAC2STR(go_dev_addr));
2359                 }
2360                 return;
2361         }
2362
2363         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
2364                 " persistent=%d", MAC2STR(sa), s->id);
2365 }
2366
2367
2368 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
2369 {
2370         struct wpa_supplicant *wpa_s = ctx;
2371         struct wpa_ssid *ssid;
2372
2373         if (bssid) {
2374                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2375                         "status=%d " MACSTR,
2376                         status, MAC2STR(bssid));
2377         } else {
2378                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2379                         "status=%d ", status);
2380         }
2381         wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2382
2383         if (wpa_s->pending_invite_ssid_id == -1)
2384                 return; /* Invitation to active group */
2385
2386         if (status != P2P_SC_SUCCESS) {
2387                 wpas_p2p_remove_pending_group_interface(wpa_s);
2388                 return;
2389         }
2390
2391         ssid = wpa_config_get_network(wpa_s->conf,
2392                                       wpa_s->pending_invite_ssid_id);
2393         if (ssid == NULL) {
2394                 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2395                            "data matching with invitation");
2396                 return;
2397         }
2398
2399         wpas_p2p_group_add_persistent(wpa_s, ssid,
2400                                       ssid->mode == WPAS_MODE_P2P_GO,
2401                                       wpa_s->p2p_persistent_go_freq,
2402                                       wpa_s->p2p_go_ht40);
2403 }
2404
2405
2406 static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2407                                     unsigned int freq)
2408 {
2409         unsigned int i;
2410
2411         if (global->p2p_disallow_freq == NULL)
2412                 return 0;
2413
2414         for (i = 0; i < global->num_p2p_disallow_freq; i++) {
2415                 if (freq >= global->p2p_disallow_freq[i].min &&
2416                     freq <= global->p2p_disallow_freq[i].max)
2417                         return 1;
2418         }
2419
2420         return 0;
2421 }
2422
2423
2424 static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
2425 {
2426         reg->channel[reg->channels] = chan;
2427         reg->channels++;
2428 }
2429
2430
2431 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2432                                      struct p2p_channels *chan)
2433 {
2434         int i, cla = 0;
2435
2436         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2437                    "band");
2438
2439         /* Operating class 81 - 2.4 GHz band channels 1..13 */
2440         chan->reg_class[cla].reg_class = 81;
2441         chan->reg_class[cla].channels = 0;
2442         for (i = 0; i < 11; i++) {
2443                 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
2444                         wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
2445         }
2446         if (chan->reg_class[cla].channels)
2447                 cla++;
2448
2449         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2450                    "band");
2451
2452         /* Operating class 115 - 5 GHz, channels 36-48 */
2453         chan->reg_class[cla].reg_class = 115;
2454         chan->reg_class[cla].channels = 0;
2455         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
2456                 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
2457         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
2458                 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
2459         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
2460                 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
2461         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
2462                 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
2463         if (chan->reg_class[cla].channels)
2464                 cla++;
2465
2466         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2467                    "band");
2468
2469         /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2470         chan->reg_class[cla].reg_class = 124;
2471         chan->reg_class[cla].channels = 0;
2472         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
2473                 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
2474         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
2475                 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
2476         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
2477                 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
2478         if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
2479                 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
2480         if (chan->reg_class[cla].channels)
2481                 cla++;
2482
2483         chan->reg_classes = cla;
2484         return 0;
2485 }
2486
2487
2488 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2489                                           u16 num_modes,
2490                                           enum hostapd_hw_mode mode)
2491 {
2492         u16 i;
2493
2494         for (i = 0; i < num_modes; i++) {
2495                 if (modes[i].mode == mode)
2496                         return &modes[i];
2497         }
2498
2499         return NULL;
2500 }
2501
2502
2503 static int has_channel(struct wpa_global *global,
2504                        struct hostapd_hw_modes *mode, u8 chan, int *flags)
2505 {
2506         int i;
2507         unsigned int freq;
2508
2509         freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
2510                 chan * 5;
2511         if (wpas_p2p_disallowed_freq(global, freq))
2512                 return 0;
2513
2514         for (i = 0; i < mode->num_channels; i++) {
2515                 if (mode->channels[i].chan == chan) {
2516                         if (flags)
2517                                 *flags = mode->channels[i].flag;
2518                         return !(mode->channels[i].flag &
2519                                  (HOSTAPD_CHAN_DISABLED |
2520                                   HOSTAPD_CHAN_PASSIVE_SCAN |
2521                                   HOSTAPD_CHAN_NO_IBSS |
2522                                   HOSTAPD_CHAN_RADAR));
2523                 }
2524         }
2525
2526         return 0;
2527 }
2528
2529
2530 struct p2p_oper_class_map {
2531         enum hostapd_hw_mode mode;
2532         u8 op_class;
2533         u8 min_chan;
2534         u8 max_chan;
2535         u8 inc;
2536         enum { BW20, BW40PLUS, BW40MINUS } bw;
2537 };
2538
2539 static struct p2p_oper_class_map op_class[] = {
2540         { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2541         { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 },
2542 #if 0 /* Do not enable HT40 on 2 GHz for now */
2543         { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2544         { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2545 #endif
2546         { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2547         { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2548         { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2549         { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2550         { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2551         { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2552         { -1, 0, 0, 0, 0, BW20 }
2553 };
2554
2555
2556 static int wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
2557                                    struct hostapd_hw_modes *mode,
2558                                    u8 channel, u8 bw)
2559 {
2560         int flag;
2561
2562         if (!has_channel(wpa_s->global, mode, channel, &flag))
2563                 return -1;
2564         if (bw == BW40MINUS &&
2565             (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2566              !has_channel(wpa_s->global, mode, channel - 4, NULL)))
2567                 return 0;
2568         if (bw == BW40PLUS &&
2569             (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2570              !has_channel(wpa_s->global, mode, channel + 4, NULL)))
2571                 return 0;
2572         return 1;
2573 }
2574
2575
2576 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
2577                                    struct p2p_channels *chan)
2578 {
2579         struct hostapd_hw_modes *mode;
2580         int cla, op;
2581
2582         if (wpa_s->hw.modes == NULL) {
2583                 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2584                            "of all supported channels; assume dualband "
2585                            "support");
2586                 return wpas_p2p_default_channels(wpa_s, chan);
2587         }
2588
2589         cla = 0;
2590
2591         for (op = 0; op_class[op].op_class; op++) {
2592                 struct p2p_oper_class_map *o = &op_class[op];
2593                 u8 ch;
2594                 struct p2p_reg_class *reg = NULL;
2595
2596                 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
2597                 if (mode == NULL)
2598                         continue;
2599                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2600                         if (wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw) < 1)
2601                                 continue;
2602                         if (reg == NULL) {
2603                                 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2604                                            "class %u", o->op_class);
2605                                 reg = &chan->reg_class[cla];
2606                                 cla++;
2607                                 reg->reg_class = o->op_class;
2608                         }
2609                         reg->channel[reg->channels] = ch;
2610                         reg->channels++;
2611                 }
2612                 if (reg) {
2613                         wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2614                                     reg->channel, reg->channels);
2615                 }
2616         }
2617
2618         chan->reg_classes = cla;
2619
2620         return 0;
2621 }
2622
2623
2624 int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
2625                            struct hostapd_hw_modes *mode, u8 channel)
2626 {
2627         int op, ret;
2628
2629         for (op = 0; op_class[op].op_class; op++) {
2630                 struct p2p_oper_class_map *o = &op_class[op];
2631                 u8 ch;
2632
2633                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2634                         if (o->mode != HOSTAPD_MODE_IEEE80211A ||
2635                             o->bw == BW20 || ch != channel)
2636                                 continue;
2637                         ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
2638                         if (ret < 0)
2639                                 continue;
2640                         else if (ret > 0)
2641                                 return (o->bw == BW40MINUS) ? -1 : 1;
2642                         else
2643                                 return 0;
2644                 }
2645         }
2646         return 0;
2647 }
2648
2649
2650 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2651                         size_t buf_len)
2652 {
2653         struct wpa_supplicant *wpa_s = ctx;
2654
2655         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2656                 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2657                         break;
2658         }
2659         if (wpa_s == NULL)
2660                 return -1;
2661
2662         return wpa_drv_get_noa(wpa_s, buf, buf_len);
2663 }
2664
2665
2666 static int wpas_go_connected(void *ctx, const u8 *dev_addr)
2667 {
2668         struct wpa_supplicant *wpa_s = ctx;
2669
2670         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2671                 struct wpa_ssid *ssid = wpa_s->current_ssid;
2672                 if (ssid == NULL)
2673                         continue;
2674                 if (ssid->mode != WPAS_MODE_INFRA)
2675                         continue;
2676                 if (wpa_s->wpa_state != WPA_COMPLETED &&
2677                     wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
2678                         continue;
2679                 if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
2680                         return 1;
2681         }
2682
2683         return 0;
2684 }
2685
2686
2687 /**
2688  * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2689  * @global: Pointer to global data from wpa_supplicant_init()
2690  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2691  * Returns: 0 on success, -1 on failure
2692  */
2693 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2694 {
2695         struct p2p_config p2p;
2696         unsigned int r;
2697         int i;
2698
2699         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2700                 return 0;
2701
2702         if (global->p2p)
2703                 return 0;
2704
2705         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2706                 struct p2p_params params;
2707
2708                 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2709                 os_memset(&params, 0, sizeof(params));
2710                 params.dev_name = wpa_s->conf->device_name;
2711                 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2712                           WPS_DEV_TYPE_LEN);
2713                 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2714                 os_memcpy(params.sec_dev_type,
2715                           wpa_s->conf->sec_device_type,
2716                           params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2717
2718                 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
2719                         return -1;
2720
2721                 return 0;
2722         }
2723
2724         os_memset(&p2p, 0, sizeof(p2p));
2725         p2p.msg_ctx = wpa_s;
2726         p2p.cb_ctx = wpa_s;
2727         p2p.p2p_scan = wpas_p2p_scan;
2728         p2p.send_action = wpas_send_action;
2729         p2p.send_action_done = wpas_send_action_done;
2730         p2p.go_neg_completed = wpas_go_neg_completed;
2731         p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2732         p2p.dev_found = wpas_dev_found;
2733         p2p.dev_lost = wpas_dev_lost;
2734         p2p.start_listen = wpas_start_listen;
2735         p2p.stop_listen = wpas_stop_listen;
2736         p2p.send_probe_resp = wpas_send_probe_resp;
2737         p2p.sd_request = wpas_sd_request;
2738         p2p.sd_response = wpas_sd_response;
2739         p2p.prov_disc_req = wpas_prov_disc_req;
2740         p2p.prov_disc_resp = wpas_prov_disc_resp;
2741         p2p.prov_disc_fail = wpas_prov_disc_fail;
2742         p2p.invitation_process = wpas_invitation_process;
2743         p2p.invitation_received = wpas_invitation_received;
2744         p2p.invitation_result = wpas_invitation_result;
2745         p2p.get_noa = wpas_get_noa;
2746         p2p.go_connected = wpas_go_connected;
2747
2748         os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2749         os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
2750         p2p.dev_name = wpa_s->conf->device_name;
2751         p2p.manufacturer = wpa_s->conf->manufacturer;
2752         p2p.model_name = wpa_s->conf->model_name;
2753         p2p.model_number = wpa_s->conf->model_number;
2754         p2p.serial_number = wpa_s->conf->serial_number;
2755         if (wpa_s->wps) {
2756                 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2757                 p2p.config_methods = wpa_s->wps->config_methods;
2758         }
2759
2760         if (wpa_s->conf->p2p_listen_reg_class &&
2761             wpa_s->conf->p2p_listen_channel) {
2762                 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2763                 p2p.channel = wpa_s->conf->p2p_listen_channel;
2764         } else {
2765                 p2p.reg_class = 81;
2766                 /*
2767                  * Pick one of the social channels randomly as the listen
2768                  * channel.
2769                  */
2770                 os_get_random((u8 *) &r, sizeof(r));
2771                 p2p.channel = 1 + (r % 3) * 5;
2772         }
2773         wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
2774
2775         if (wpa_s->conf->p2p_oper_reg_class &&
2776             wpa_s->conf->p2p_oper_channel) {
2777                 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2778                 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2779                 p2p.cfg_op_channel = 1;
2780                 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2781                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
2782
2783         } else {
2784                 p2p.op_reg_class = 81;
2785                 /*
2786                  * Use random operation channel from (1, 6, 11) if no other
2787                  * preference is indicated.
2788                  */
2789                 os_get_random((u8 *) &r, sizeof(r));
2790                 p2p.op_channel = 1 + (r % 3) * 5;
2791                 p2p.cfg_op_channel = 0;
2792                 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2793                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
2794         }
2795         if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2796                 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2797                 p2p.country[2] = 0x04;
2798         } else
2799                 os_memcpy(p2p.country, "XX\x04", 3);
2800
2801         if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
2802                 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2803                            "channel list");
2804                 return -1;
2805         }
2806
2807         os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2808                   WPS_DEV_TYPE_LEN);
2809
2810         p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2811         os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2812                   p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2813
2814         p2p.concurrent_operations = !!(wpa_s->drv_flags &
2815                                        WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2816
2817         p2p.max_peers = 100;
2818
2819         if (wpa_s->conf->p2p_ssid_postfix) {
2820                 p2p.ssid_postfix_len =
2821                         os_strlen(wpa_s->conf->p2p_ssid_postfix);
2822                 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2823                         p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2824                 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2825                           p2p.ssid_postfix_len);
2826         }
2827
2828         p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2829
2830 #ifdef ANDROID_P2P
2831         if(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)
2832                 p2p.p2p_concurrency = P2P_MULTI_CHANNEL_CONCURRENT;
2833         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT)
2834                 p2p.p2p_concurrency = P2P_SINGLE_CHANNEL_CONCURRENT;
2835 #endif
2836
2837         global->p2p = p2p_init(&p2p);
2838         if (global->p2p == NULL)
2839                 return -1;
2840         global->p2p_init_wpa_s = wpa_s;
2841
2842         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2843                 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2844                         continue;
2845                 p2p_add_wps_vendor_extension(
2846                         global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2847         }
2848
2849         return 0;
2850 }
2851
2852
2853 /**
2854  * wpas_p2p_deinit - Deinitialize per-interface P2P data
2855  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2856  *
2857  * This function deinitialize per-interface P2P data.
2858  */
2859 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2860 {
2861         if (wpa_s->driver && wpa_s->drv_priv)
2862                 wpa_drv_probe_req_report(wpa_s, 0);
2863
2864         if (wpa_s->go_params) {
2865                 /* Clear any stored provisioning info */
2866                 p2p_clear_provisioning_info(
2867                         wpa_s->global->p2p,
2868                         wpa_s->go_params->peer_device_addr);
2869         }
2870
2871         os_free(wpa_s->go_params);
2872         wpa_s->go_params = NULL;
2873         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2874         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2875         eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
2876         wpa_s->p2p_long_listen = 0;
2877         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2878         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
2879         wpas_p2p_remove_pending_group_interface(wpa_s);
2880
2881         /* TODO: remove group interface from the driver if this wpa_s instance
2882          * is on top of a P2P group interface */
2883 }
2884
2885
2886 /**
2887  * wpas_p2p_deinit_global - Deinitialize global P2P module
2888  * @global: Pointer to global data from wpa_supplicant_init()
2889  *
2890  * This function deinitializes the global (per device) P2P module.
2891  */
2892 void wpas_p2p_deinit_global(struct wpa_global *global)
2893 {
2894         struct wpa_supplicant *wpa_s, *tmp;
2895
2896         wpa_s = global->ifaces;
2897         if (wpa_s)
2898                 wpas_p2p_service_flush(wpa_s);
2899
2900         if (global->p2p == NULL)
2901                 return;
2902
2903         /* Remove remaining P2P group interfaces */
2904         while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2905                 wpa_s = wpa_s->next;
2906         while (wpa_s) {
2907                 tmp = global->ifaces;
2908                 while (tmp &&
2909                        (tmp == wpa_s ||
2910                         tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2911                         tmp = tmp->next;
2912                 }
2913                 if (tmp == NULL)
2914                         break;
2915                 /* Disconnect from the P2P group and deinit the interface */
2916                 wpas_p2p_disconnect(tmp);
2917         }
2918
2919         /*
2920          * Deinit GO data on any possibly remaining interface (if main
2921          * interface is used as GO).
2922          */
2923         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2924                 if (wpa_s->ap_iface)
2925                         wpas_p2p_group_deinit(wpa_s);
2926         }
2927
2928         p2p_deinit(global->p2p);
2929         global->p2p = NULL;
2930         global->p2p_init_wpa_s = NULL;
2931 }
2932
2933
2934 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2935 {
2936         if (wpa_s->drv_flags &
2937             (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2938              WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
2939                 return 1; /* P2P group requires a new interface in every case
2940                            */
2941         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2942                 return 0; /* driver does not support concurrent operations */
2943         if (wpa_s->global->ifaces->next)
2944                 return 1; /* more that one interface already in use */
2945         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2946                 return 1; /* this interface is already in use */
2947         return 0;
2948 }
2949
2950
2951 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2952                                  const u8 *peer_addr,
2953                                  enum p2p_wps_method wps_method,
2954                                  int go_intent, const u8 *own_interface_addr,
2955                                  unsigned int force_freq, int persistent_group,
2956                                  struct wpa_ssid *ssid)
2957 {
2958         if (persistent_group && wpa_s->conf->persistent_reconnect)
2959                 persistent_group = 2;
2960
2961         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2962                 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2963                                            go_intent, own_interface_addr,
2964                                            force_freq, persistent_group);
2965         }
2966
2967         /*
2968          * Increase GO config timeout if HT40 is used since it takes some time
2969          * to scan channels for coex purposes before the BSS can be started.
2970          */
2971         p2p_set_config_timeout(wpa_s->global->p2p,
2972                                wpa_s->p2p_go_ht40 ? 255 : 100, 20);
2973
2974         return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2975                            go_intent, own_interface_addr, force_freq,
2976                            persistent_group, ssid ? ssid->ssid : NULL,
2977                            ssid ? ssid->ssid_len : 0,
2978                            wpa_s->p2p_pd_before_go_neg);
2979 }
2980
2981
2982 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2983                                 const u8 *peer_addr,
2984                                 enum p2p_wps_method wps_method,
2985                                 int go_intent, const u8 *own_interface_addr,
2986                                 unsigned int force_freq, int persistent_group,
2987                                 struct wpa_ssid *ssid)
2988 {
2989         if (persistent_group && wpa_s->conf->persistent_reconnect)
2990                 persistent_group = 2;
2991
2992         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2993                 return -1;
2994
2995         return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2996                              go_intent, own_interface_addr, force_freq,
2997                              persistent_group, ssid ? ssid->ssid : NULL,
2998                              ssid ? ssid->ssid_len : 0);
2999 }
3000
3001
3002 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
3003 {
3004         wpa_s->p2p_join_scan_count++;
3005         wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
3006                    wpa_s->p2p_join_scan_count);
3007         if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
3008                 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
3009                            " for join operationg - stop join attempt",
3010                            MAC2STR(wpa_s->pending_join_iface_addr));
3011                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3012                 if (wpa_s->p2p_auto_pd) {
3013                         wpa_s->p2p_auto_pd = 0;
3014                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3015                                 " p2p_dev_addr=" MACSTR " status=N/A",
3016                                 MAC2STR(wpa_s->pending_join_dev_addr));
3017                         return;
3018                 }
3019                 wpa_msg(wpa_s->parent, MSG_INFO,
3020                         P2P_EVENT_GROUP_FORMATION_FAILURE);
3021         }
3022 }
3023
3024
3025 static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx, void *timeout_ctx)
3026 {
3027         struct wpa_supplicant *wpa_s = eloop_ctx;
3028         if (!wpa_s->pending_pd_before_join)
3029                 return;
3030         /*
3031          * Provision Discovery Response may have been lost - try to connect
3032          * anyway since we do not need any information from this PD.
3033          */
3034         wpa_printf(MSG_DEBUG, "P2P: PD timeout for join-existing-group - "
3035                    "try to connect anyway");
3036         wpas_p2p_join_start(wpa_s);
3037 }
3038
3039
3040 static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
3041 {
3042         struct wpa_supplicant *iface;
3043         int shared_freq;
3044         u8 bssid[ETH_ALEN];
3045
3046         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)
3047                 return 0;
3048
3049         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
3050                 if (!wpas_p2p_create_iface(wpa_s) && iface == wpa_s)
3051                         continue;
3052                 if (iface->current_ssid == NULL || iface->assoc_freq == 0)
3053                         continue;
3054                 if (iface->current_ssid->mode == WPAS_MODE_AP ||
3055                     iface->current_ssid->mode == WPAS_MODE_P2P_GO)
3056                         shared_freq = iface->current_ssid->frequency;
3057                 else if (wpa_drv_get_bssid(iface, bssid) == 0)
3058                         shared_freq = iface->assoc_freq;
3059                 else
3060                         shared_freq = 0;
3061
3062                 if (shared_freq && freq != shared_freq) {
3063                         wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - %s "
3064                                    "connected on %d MHz - new connection on "
3065                                    "%d MHz", iface->ifname, shared_freq, freq);
3066                         return 1;
3067                 }
3068         }
3069
3070         shared_freq = wpa_drv_shared_freq(wpa_s);
3071         if (shared_freq > 0 && shared_freq != freq) {
3072                 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - shared "
3073                            "virtual interface connected on %d MHz - new "
3074                            "connection on %d MHz", shared_freq, freq);
3075                 return 1;
3076         }
3077
3078         return 0;
3079 }
3080
3081
3082 static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
3083                             const u8 *peer_dev_addr)
3084 {
3085         struct wpa_bss *bss;
3086         int updated;
3087
3088         bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
3089         if (bss == NULL)
3090                 return -1;
3091         if (bss->last_update_idx < wpa_s->bss_update_idx) {
3092                 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
3093                            "last scan");
3094                 return 0;
3095         }
3096
3097         updated = os_time_before(&wpa_s->p2p_auto_started, &bss->last_update);
3098         wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
3099                    "%ld.%06ld (%supdated in last scan)",
3100                    bss->last_update.sec, bss->last_update.usec,
3101                    updated ? "": "not ");
3102
3103         return updated;
3104 }
3105
3106
3107 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
3108                                    struct wpa_scan_results *scan_res)
3109 {
3110         struct wpa_bss *bss;
3111         int freq;
3112         u8 iface_addr[ETH_ALEN];
3113
3114         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3115
3116         if (wpa_s->global->p2p_disabled)
3117                 return;
3118
3119         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
3120                    scan_res ? (int) scan_res->num : -1,
3121                    wpa_s->p2p_auto_join ? "auto_" : "");
3122
3123         if (scan_res)
3124                 wpas_p2p_scan_res_handler(wpa_s, scan_res);
3125
3126         if (wpa_s->p2p_auto_pd) {
3127                 int join = wpas_p2p_peer_go(wpa_s,
3128                                             wpa_s->pending_join_dev_addr);
3129                 if (join == 0 &&
3130                     wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
3131                         wpa_s->auto_pd_scan_retry++;
3132                         bss = wpa_bss_get_bssid(wpa_s,
3133                                                 wpa_s->pending_join_dev_addr);
3134                         if (bss) {
3135                                 freq = bss->freq;
3136                                 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
3137                                            "the peer " MACSTR " at %d MHz",
3138                                            wpa_s->auto_pd_scan_retry,
3139                                            MAC2STR(wpa_s->
3140                                                    pending_join_dev_addr),
3141                                            freq);
3142                                 wpas_p2p_join_scan_req(wpa_s, freq);
3143                                 return;
3144                         }
3145                 }
3146
3147                 if (join < 0)
3148                         join = 0;
3149
3150                 wpa_s->p2p_auto_pd = 0;
3151                 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
3152                 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
3153                            MAC2STR(wpa_s->pending_join_dev_addr), join);
3154                 if (p2p_prov_disc_req(wpa_s->global->p2p,
3155                                       wpa_s->pending_join_dev_addr,
3156                                       wpa_s->pending_pd_config_methods, join,
3157                                       0) < 0) {
3158                         wpa_s->p2p_auto_pd = 0;
3159                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3160                                 " p2p_dev_addr=" MACSTR " status=N/A",
3161                                 MAC2STR(wpa_s->pending_join_dev_addr));
3162                 }
3163                 return;
3164         }
3165
3166         if (wpa_s->p2p_auto_join) {
3167                 int join = wpas_p2p_peer_go(wpa_s,
3168                                             wpa_s->pending_join_dev_addr);
3169                 if (join < 0) {
3170                         wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
3171                                    "running a GO -> use GO Negotiation");
3172                         wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
3173                                          wpa_s->p2p_pin, wpa_s->p2p_wps_method,
3174                                          wpa_s->p2p_persistent_group, 0, 0, 0,
3175                                          wpa_s->p2p_go_intent,
3176                                          wpa_s->p2p_connect_freq,
3177                                          wpa_s->p2p_persistent_id,
3178                                          wpa_s->p2p_pd_before_go_neg,
3179                                          wpa_s->p2p_go_ht40);
3180                         return;
3181                 }
3182
3183                 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
3184                            "try to join the group", join ? "" :
3185                            " in older scan");
3186                 if (!join)
3187                         wpa_s->p2p_fallback_to_go_neg = 1;
3188         }
3189
3190         freq = p2p_get_oper_freq(wpa_s->global->p2p,
3191                                  wpa_s->pending_join_iface_addr);
3192         if (freq < 0 &&
3193             p2p_get_interface_addr(wpa_s->global->p2p,
3194                                    wpa_s->pending_join_dev_addr,
3195                                    iface_addr) == 0 &&
3196             os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
3197         {
3198                 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
3199                            "address for join from " MACSTR " to " MACSTR
3200                            " based on newly discovered P2P peer entry",
3201                            MAC2STR(wpa_s->pending_join_iface_addr),
3202                            MAC2STR(iface_addr));
3203                 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
3204                           ETH_ALEN);
3205
3206                 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3207                                          wpa_s->pending_join_iface_addr);
3208         }
3209         if (freq >= 0) {
3210                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3211                            "from P2P peer table: %d MHz", freq);
3212         }
3213         bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3214         if (bss) {
3215                 freq = bss->freq;
3216                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3217                            "from BSS table: %d MHz", freq);
3218         }
3219         if (freq > 0) {
3220                 u16 method;
3221
3222                 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
3223                         wpa_msg(wpa_s->parent, MSG_INFO,
3224                                 P2P_EVENT_GROUP_FORMATION_FAILURE
3225                                 "reason=FREQ_CONFLICT");
3226                         return;
3227                 }
3228
3229                 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
3230                            "prior to joining an existing group (GO " MACSTR
3231                            " freq=%u MHz)",
3232                            MAC2STR(wpa_s->pending_join_dev_addr), freq);
3233                 wpa_s->pending_pd_before_join = 1;
3234
3235                 switch (wpa_s->pending_join_wps_method) {
3236                 case WPS_PIN_DISPLAY:
3237                         method = WPS_CONFIG_KEYPAD;
3238                         break;
3239                 case WPS_PIN_KEYPAD:
3240                         method = WPS_CONFIG_DISPLAY;
3241                         break;
3242                 case WPS_PBC:
3243                         method = WPS_CONFIG_PUSHBUTTON;
3244                         break;
3245                 default:
3246                         method = 0;
3247                         break;
3248                 }
3249
3250                 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
3251                                                wpa_s->pending_join_dev_addr) ==
3252                      method)) {
3253                         /*
3254                          * We have already performed provision discovery for
3255                          * joining the group. Proceed directly to join
3256                          * operation without duplicated provision discovery. */
3257                         wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
3258                                    "with " MACSTR " already done - proceed to "
3259                                    "join",
3260                                    MAC2STR(wpa_s->pending_join_dev_addr));
3261                         wpa_s->pending_pd_before_join = 0;
3262                         goto start;
3263                 }
3264
3265                 if (p2p_prov_disc_req(wpa_s->global->p2p,
3266                                       wpa_s->pending_join_dev_addr, method, 1,
3267                                       freq) < 0) {
3268                         wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
3269                                    "Discovery Request before joining an "
3270                                    "existing group");
3271                         wpa_s->pending_pd_before_join = 0;
3272                         goto start;
3273                 }
3274
3275                 /*
3276                  * Actual join operation will be started from the Action frame
3277                  * TX status callback (if no ACK is received) or when the
3278                  * Provision Discovery Response is received. Use a short
3279                  * timeout as a backup mechanism should the Provision Discovery
3280                  * Response be lost for any reason.
3281                  */
3282                 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s,
3283                                      NULL);
3284                 eloop_register_timeout(2, 0, wpas_p2p_pd_before_join_timeout,
3285                                        wpa_s, NULL);
3286                 return;
3287         }
3288
3289         wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
3290         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3291         eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3292         wpas_p2p_check_join_scan_limit(wpa_s);
3293         return;
3294
3295 start:
3296         /* Start join operation immediately */
3297         wpas_p2p_join_start(wpa_s);
3298 }
3299
3300
3301 static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq)
3302 {
3303         int ret;
3304         struct wpa_driver_scan_params params;
3305         struct wpabuf *wps_ie, *ies;
3306         size_t ielen;
3307         int freqs[2] = { 0, 0 };
3308 #ifdef ANDROID_P2P
3309         int oper_freq;
3310
3311         /* If freq is not provided, check the operating freq of the GO and do a
3312          * a directed scan to save time
3313          */
3314         if(!freq) {
3315                 freq = (oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
3316                          wpa_s->pending_join_iface_addr) == -1) ? 0 : oper_freq;
3317         }
3318 #endif
3319         os_memset(&params, 0, sizeof(params));
3320
3321         /* P2P Wildcard SSID */
3322         params.num_ssids = 1;
3323         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
3324         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
3325
3326         wpa_s->wps->dev.p2p = 1;
3327         wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
3328                                         wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
3329                                         NULL);
3330         if (wps_ie == NULL) {
3331                 wpas_p2p_scan_res_join(wpa_s, NULL);
3332                 return;
3333         }
3334
3335         ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
3336         ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
3337         if (ies == NULL) {
3338                 wpabuf_free(wps_ie);
3339                 wpas_p2p_scan_res_join(wpa_s, NULL);
3340                 return;
3341         }
3342         wpabuf_put_buf(ies, wps_ie);
3343         wpabuf_free(wps_ie);
3344
3345         p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
3346
3347         params.p2p_probe = 1;
3348         params.extra_ies = wpabuf_head(ies);
3349         params.extra_ies_len = wpabuf_len(ies);
3350         if (freq > 0) {
3351                 freqs[0] = freq;
3352                 params.freqs = freqs;
3353         }
3354
3355         /*
3356          * Run a scan to update BSS table and start Provision Discovery once
3357          * the new scan results become available.
3358          */
3359         ret = wpa_drv_scan(wpa_s, &params);
3360         if (!ret)
3361                 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
3362
3363         wpabuf_free(ies);
3364
3365         if (ret) {
3366                 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
3367                            "try again later");
3368                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3369                 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3370                 wpas_p2p_check_join_scan_limit(wpa_s);
3371         }
3372 }
3373
3374
3375 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
3376 {
3377         struct wpa_supplicant *wpa_s = eloop_ctx;
3378         wpas_p2p_join_scan_req(wpa_s, 0);
3379 }
3380
3381
3382 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
3383                          const u8 *dev_addr, enum p2p_wps_method wps_method,
3384                          int auto_join)
3385 {
3386         wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
3387                    MACSTR " dev " MACSTR ")%s",
3388                    MAC2STR(iface_addr), MAC2STR(dev_addr),
3389                    auto_join ? " (auto_join)" : "");
3390
3391         wpa_s->p2p_auto_pd = 0;
3392         wpa_s->p2p_auto_join = !!auto_join;
3393         os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
3394         os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
3395         wpa_s->pending_join_wps_method = wps_method;
3396
3397         /* Make sure we are not running find during connection establishment */
3398         wpas_p2p_stop_find(wpa_s);
3399
3400         wpa_s->p2p_join_scan_count = 0;
3401         wpas_p2p_join_scan(wpa_s, NULL);
3402         return 0;
3403 }
3404
3405
3406 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
3407 {
3408         struct wpa_supplicant *group;
3409         struct p2p_go_neg_results res;
3410         struct wpa_bss *bss;
3411
3412         eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
3413         group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
3414         if (group == NULL)
3415                 return -1;
3416         if (group != wpa_s) {
3417                 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
3418                           sizeof(group->p2p_pin));
3419                 group->p2p_wps_method = wpa_s->p2p_wps_method;
3420         }
3421
3422         group->p2p_in_provisioning = 1;
3423         group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
3424
3425         os_memset(&res, 0, sizeof(res));
3426         os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
3427                   ETH_ALEN);
3428         res.wps_method = wpa_s->pending_join_wps_method;
3429         bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3430         if (bss) {
3431                 res.freq = bss->freq;
3432                 res.ssid_len = bss->ssid_len;
3433                 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
3434         }
3435
3436         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
3437                 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
3438                            "starting client");
3439                 wpa_drv_cancel_remain_on_channel(wpa_s);
3440                 wpa_s->off_channel_freq = 0;
3441                 wpa_s->roc_waiting_drv_freq = 0;
3442         }
3443         wpas_start_wps_enrollee(group, &res);
3444
3445         /*
3446          * Allow a longer timeout for join-a-running-group than normal 15
3447          * second group formation timeout since the GO may not have authorized
3448          * our connection yet.
3449          */
3450         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
3451         eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
3452                                wpa_s, NULL);
3453
3454         return 0;
3455 }
3456
3457
3458 /**
3459  * wpas_p2p_connect - Request P2P Group Formation to be started
3460  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3461  * @peer_addr: Address of the peer P2P Device
3462  * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
3463  * @persistent_group: Whether to create a persistent group
3464  * @auto_join: Whether to select join vs. GO Negotiation automatically
3465  * @join: Whether to join an existing group (as a client) instead of starting
3466  *      Group Owner negotiation; @peer_addr is BSSID in that case
3467  * @auth: Whether to only authorize the connection instead of doing that and
3468  *      initiating Group Owner negotiation
3469  * @go_intent: GO Intent or -1 to use default
3470  * @freq: Frequency for the group or 0 for auto-selection
3471  * @persistent_id: Persistent group credentials to use for forcing GO
3472  *      parameters or -1 to generate new values (SSID/passphrase)
3473  * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
3474  *      interoperability workaround when initiating group formation
3475  * @ht40: Start GO with 40 MHz channel width
3476  * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
3477  *      failure, -2 on failure due to channel not currently available,
3478  *      -3 if forced channel is not supported
3479  */
3480 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3481                      const char *pin, enum p2p_wps_method wps_method,
3482                      int persistent_group, int auto_join, int join, int auth,
3483                      int go_intent, int freq, int persistent_id, int pd,
3484                      int ht40)
3485 {
3486         int force_freq = 0, oper_freq = 0;
3487         u8 bssid[ETH_ALEN];
3488         int ret = 0;
3489         enum wpa_driver_if_type iftype;
3490         const u8 *if_addr;
3491         struct wpa_ssid *ssid = NULL;
3492
3493         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3494                 return -1;
3495
3496         if (persistent_id >= 0) {
3497                 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
3498                 if (ssid == NULL || ssid->disabled != 2 ||
3499                     ssid->mode != WPAS_MODE_P2P_GO)
3500                         return -1;
3501         }
3502
3503         if (go_intent < 0)
3504                 go_intent = wpa_s->conf->p2p_go_intent;
3505
3506         if (!auth)
3507                 wpa_s->p2p_long_listen = 0;
3508
3509         wpa_s->p2p_wps_method = wps_method;
3510         wpa_s->p2p_persistent_group = !!persistent_group;
3511         wpa_s->p2p_persistent_id = persistent_id;
3512         wpa_s->p2p_go_intent = go_intent;
3513         wpa_s->p2p_connect_freq = freq;
3514         wpa_s->p2p_fallback_to_go_neg = 0;
3515         wpa_s->p2p_pd_before_go_neg = !!pd;
3516         wpa_s->p2p_go_ht40 = !!ht40;
3517
3518         if (pin)
3519                 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
3520         else if (wps_method == WPS_PIN_DISPLAY) {
3521                 ret = wps_generate_pin();
3522                 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
3523                             ret);
3524                 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
3525                            wpa_s->p2p_pin);
3526         } else
3527                 wpa_s->p2p_pin[0] = '\0';
3528
3529         if (join || auto_join) {
3530                 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
3531                 if (auth) {
3532                         wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
3533                                    "connect a running group from " MACSTR,
3534                                    MAC2STR(peer_addr));
3535                         os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
3536                         return ret;
3537                 }
3538                 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
3539                 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
3540                                            iface_addr) < 0) {
3541                         os_memcpy(iface_addr, peer_addr, ETH_ALEN);
3542                         p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
3543                                          dev_addr);
3544                 }
3545                 if (auto_join) {
3546                         os_get_time(&wpa_s->p2p_auto_started);
3547                         wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
3548                                    "%ld.%06ld",
3549                                    wpa_s->p2p_auto_started.sec,
3550                                    wpa_s->p2p_auto_started.usec);
3551                 }
3552                 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
3553                                   auto_join) < 0)
3554                         return -1;
3555                 return ret;
3556         }
3557
3558         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3559             wpa_s->assoc_freq)
3560                 oper_freq = wpa_s->assoc_freq;
3561         else {
3562                 oper_freq = wpa_drv_shared_freq(wpa_s);
3563                 if (oper_freq < 0)
3564                         oper_freq = 0;
3565         }
3566
3567         if (freq > 0) {
3568                 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3569                         wpa_printf(MSG_DEBUG, "P2P: The forced channel "
3570                                    "(%u MHz) is not supported for P2P uses",
3571                                    freq);
3572                         return -3;
3573                 }
3574
3575                 if (oper_freq > 0 && freq != oper_freq &&
3576                     !(wpa_s->drv_flags &
3577                       WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3578                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3579                                    "on %u MHz while connected on another "
3580                                    "channel (%u MHz)", freq, oper_freq);
3581                         return -2;
3582                 }
3583                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3584                            "requested channel (%u MHz)", freq);
3585                 force_freq = freq;
3586         } else if (oper_freq > 0 &&
3587                    !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
3588                 if (!(wpa_s->drv_flags &
3589                       WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3590                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3591                                    "while connected on non-P2P supported "
3592                                    "channel (%u MHz)", oper_freq);
3593                         return -2;
3594                 }
3595                 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
3596                            "(%u MHz) not available for P2P - try to use "
3597                            "another channel", oper_freq);
3598                 force_freq = 0;
3599         } else if (oper_freq > 0) {
3600                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3601                            "channel we are already using (%u MHz) on another "
3602                            "interface", oper_freq);
3603                 force_freq = oper_freq;
3604         }
3605
3606         wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
3607
3608         if (wpa_s->create_p2p_iface) {
3609                 /* Prepare to add a new interface for the group */
3610                 iftype = WPA_IF_P2P_GROUP;
3611                 if (go_intent == 15)
3612                         iftype = WPA_IF_P2P_GO;
3613                 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
3614                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3615                                    "interface for the group");
3616                         return -1;
3617                 }
3618
3619                 if_addr = wpa_s->pending_interface_addr;
3620         } else
3621                 if_addr = wpa_s->own_addr;
3622
3623         if (auth) {
3624                 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
3625                                          go_intent, if_addr,
3626                                          force_freq, persistent_group, ssid) <
3627                     0)
3628                         return -1;
3629                 return ret;
3630         }
3631
3632         if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
3633                                   go_intent, if_addr, force_freq,
3634                                   persistent_group, ssid) < 0) {
3635                 if (wpa_s->create_p2p_iface)
3636                         wpas_p2p_remove_pending_group_interface(wpa_s);
3637                 return -1;
3638         }
3639         return ret;
3640 }
3641
3642
3643 /**
3644  * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
3645  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3646  * @freq: Frequency of the channel in MHz
3647  * @duration: Duration of the stay on the channel in milliseconds
3648  *
3649  * This callback is called when the driver indicates that it has started the
3650  * requested remain-on-channel duration.
3651  */
3652 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3653                                    unsigned int freq, unsigned int duration)
3654 {
3655         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3656                 return;
3657         if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
3658                 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
3659                               wpa_s->pending_listen_duration);
3660                 wpa_s->pending_listen_freq = 0;
3661         }
3662 }
3663
3664
3665 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
3666                                  unsigned int timeout)
3667 {
3668         /* Limit maximum Listen state time based on driver limitation. */
3669         if (timeout > wpa_s->max_remain_on_chan)
3670                 timeout = wpa_s->max_remain_on_chan;
3671
3672         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3673                 return wpa_drv_p2p_listen(wpa_s, timeout);
3674
3675         return p2p_listen(wpa_s->global->p2p, timeout);
3676 }
3677
3678
3679 /**
3680  * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3681  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3682  * @freq: Frequency of the channel in MHz
3683  *
3684  * This callback is called when the driver indicates that a remain-on-channel
3685  * operation has been completed, i.e., the duration on the requested channel
3686  * has timed out.
3687  */
3688 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3689                                           unsigned int freq)
3690 {
3691         wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
3692                    "(p2p_long_listen=%d ms pending_action_tx=%p)",
3693                    wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
3694         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3695                 return;
3696         if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
3697                 return; /* P2P module started a new operation */
3698         if (wpa_s->pending_action_tx)
3699                 return;
3700         if (wpa_s->p2p_long_listen > 0)
3701                 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
3702         if (wpa_s->p2p_long_listen > 0) {
3703                 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
3704                 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
3705         }
3706 }
3707
3708
3709 /**
3710  * wpas_p2p_group_remove - Remove a P2P group
3711  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3712  * @ifname: Network interface name of the group interface or "*" to remove all
3713  *      groups
3714  * Returns: 0 on success, -1 on failure
3715  *
3716  * This function is used to remove a P2P group. This can be used to disconnect
3717  * from a group in which the local end is a P2P Client or to end a P2P Group in
3718  * case the local end is the Group Owner. If a virtual network interface was
3719  * created for this group, that interface will be removed. Otherwise, only the
3720  * configured P2P group network will be removed from the interface.
3721  */
3722 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
3723 {
3724         struct wpa_global *global = wpa_s->global;
3725
3726         if (os_strcmp(ifname, "*") == 0) {
3727                 struct wpa_supplicant *prev;
3728                 wpa_s = global->ifaces;
3729                 while (wpa_s) {
3730                         prev = wpa_s;
3731                         wpa_s = wpa_s->next;
3732                         wpas_p2p_disconnect(prev);
3733                 }
3734                 return 0;
3735         }
3736
3737         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3738                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3739                         break;
3740         }
3741
3742         return wpas_p2p_disconnect(wpa_s);
3743 }
3744
3745
3746 static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
3747                                    struct p2p_go_neg_results *params,
3748                                    int freq, int ht40)
3749 {
3750         u8 bssid[ETH_ALEN];
3751         int res;
3752
3753         os_memset(params, 0, sizeof(*params));
3754         params->role_go = 1;
3755         params->ht40 = ht40;
3756         if (freq) {
3757                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
3758                            "frequency %d MHz", freq);
3759                 params->freq = freq;
3760         } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
3761                    wpa_s->conf->p2p_oper_channel >= 1 &&
3762                    wpa_s->conf->p2p_oper_channel <= 11) {
3763                 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
3764                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3765                            "frequency %d MHz", params->freq);
3766         } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
3767                    wpa_s->conf->p2p_oper_reg_class == 124) {
3768                 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
3769                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3770                            "frequency %d MHz", params->freq);
3771         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3772                    wpa_s->best_overall_freq > 0 &&
3773                    p2p_supported_freq(wpa_s->global->p2p,
3774                                       wpa_s->best_overall_freq)) {
3775                 params->freq = wpa_s->best_overall_freq;
3776                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
3777                            "channel %d MHz", params->freq);
3778         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3779                    wpa_s->best_24_freq > 0 &&
3780                    p2p_supported_freq(wpa_s->global->p2p,
3781                                       wpa_s->best_24_freq)) {
3782                 params->freq = wpa_s->best_24_freq;
3783                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
3784                            "channel %d MHz", params->freq);
3785         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3786                    wpa_s->best_5_freq > 0 &&
3787                    p2p_supported_freq(wpa_s->global->p2p,
3788                                       wpa_s->best_5_freq)) {
3789                 params->freq = wpa_s->best_5_freq;
3790                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
3791                            "channel %d MHz", params->freq);
3792         } else {
3793                 int chan;
3794                 for (chan = 0; chan < 11; chan++) {
3795                         params->freq = 2412 + chan * 5;
3796                         if (!wpas_p2p_disallowed_freq(wpa_s->global,
3797                                                       params->freq))
3798                                 break;
3799                 }
3800                 if (chan == 11) {
3801                         wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel "
3802                                    "allowed");
3803                         return -1;
3804                 }
3805                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
3806                            "known)", params->freq);
3807         }
3808
3809         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3810             wpa_s->assoc_freq && !freq) {
3811                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3812                            "already using");
3813                 params->freq = wpa_s->assoc_freq;
3814         }
3815
3816         res = wpa_drv_shared_freq(wpa_s);
3817         if (res > 0 && !freq) {
3818                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3819                            "already using on a shared interface");
3820                 params->freq = res;
3821         } else if (res > 0 && freq != res &&
3822                    !(wpa_s->drv_flags &
3823                      WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3824                 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz "
3825                            "while connected on another channel (%u MHz)",
3826                            freq, res);
3827                 return -1;
3828         }
3829
3830         return 0;
3831 }
3832
3833
3834 static struct wpa_supplicant *
3835 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3836                          int go)
3837 {
3838         struct wpa_supplicant *group_wpa_s;
3839
3840         if (!wpas_p2p_create_iface(wpa_s))
3841                 return wpa_s;
3842
3843         if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3844                                          WPA_IF_P2P_CLIENT) < 0)
3845                 return NULL;
3846         group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3847         if (group_wpa_s == NULL) {
3848                 wpas_p2p_remove_pending_group_interface(wpa_s);
3849                 return NULL;
3850         }
3851
3852         return group_wpa_s;
3853 }
3854
3855
3856 /**
3857  * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3858  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3859  * @persistent_group: Whether to create a persistent group
3860  * @freq: Frequency for the group or 0 to indicate no hardcoding
3861  * Returns: 0 on success, -1 on failure
3862  *
3863  * This function creates a new P2P group with the local end as the Group Owner,
3864  * i.e., without using Group Owner Negotiation.
3865  */
3866 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
3867                        int freq, int ht40)
3868 {
3869         struct p2p_go_neg_results params;
3870         unsigned int r;
3871
3872         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3873                 return -1;
3874
3875         /* Make sure we are not running find during connection establishment */
3876         wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
3877         wpas_p2p_stop_find(wpa_s);
3878
3879         if (freq == 2) {
3880                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3881                            "band");
3882                 if (wpa_s->best_24_freq > 0 &&
3883                     p2p_supported_freq(wpa_s->global->p2p,
3884                                        wpa_s->best_24_freq)) {
3885                         freq = wpa_s->best_24_freq;
3886                         wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3887                                    "channel: %d MHz", freq);
3888                 } else {
3889                         os_get_random((u8 *) &r, sizeof(r));
3890                         freq = 2412 + (r % 3) * 25;
3891                         wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3892                                    "channel: %d MHz", freq);
3893                 }
3894         }
3895
3896         if (freq == 5) {
3897                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3898                            "band");
3899                 if (wpa_s->best_5_freq > 0 &&
3900                     p2p_supported_freq(wpa_s->global->p2p,
3901                                        wpa_s->best_5_freq)) {
3902                         freq = wpa_s->best_5_freq;
3903                         wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3904                                    "channel: %d MHz", freq);
3905                 } else {
3906                         os_get_random((u8 *) &r, sizeof(r));
3907                         freq = 5180 + (r % 4) * 20;
3908                         if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3909                                 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3910                                            "5 GHz channel for P2P group");
3911                                 return -1;
3912                         }
3913                         wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3914                                    "channel: %d MHz", freq);
3915                 }
3916         }
3917
3918         if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3919                 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3920                            "(%u MHz) is not supported for P2P uses",
3921                            freq);
3922                 return -1;
3923         }
3924
3925         if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40))
3926                 return -1;
3927         if (params.freq &&
3928             !p2p_supported_freq(wpa_s->global->p2p, params.freq)) {
3929                 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
3930                            "(%u MHz) is not supported for P2P uses",
3931                            params.freq);
3932                 return -1;
3933         }
3934         p2p_go_params(wpa_s->global->p2p, &params);
3935         params.persistent_group = persistent_group;
3936
3937         wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3938         if (wpa_s == NULL)
3939                 return -1;
3940         wpas_start_wps_go(wpa_s, &params, 0);
3941
3942         return 0;
3943 }
3944
3945
3946 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3947                                  struct wpa_ssid *params, int addr_allocated)
3948 {
3949         struct wpa_ssid *ssid;
3950
3951         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3952         if (wpa_s == NULL)
3953                 return -1;
3954
3955         wpa_supplicant_ap_deinit(wpa_s);
3956
3957         ssid = wpa_config_add_network(wpa_s->conf);
3958         if (ssid == NULL)
3959                 return -1;
3960         wpa_config_set_network_defaults(ssid);
3961         ssid->temporary = 1;
3962         ssid->proto = WPA_PROTO_RSN;
3963         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3964         ssid->group_cipher = WPA_CIPHER_CCMP;
3965         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3966         ssid->ssid = os_malloc(params->ssid_len);
3967         if (ssid->ssid == NULL) {
3968                 wpa_config_remove_network(wpa_s->conf, ssid->id);
3969                 return -1;
3970         }
3971         os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3972         ssid->ssid_len = params->ssid_len;
3973         ssid->p2p_group = 1;
3974         ssid->export_keys = 1;
3975         if (params->psk_set) {
3976                 os_memcpy(ssid->psk, params->psk, 32);
3977                 ssid->psk_set = 1;
3978         }
3979         if (params->passphrase)
3980                 ssid->passphrase = os_strdup(params->passphrase);
3981
3982         wpa_supplicant_select_network(wpa_s, ssid);
3983
3984         wpa_s->show_group_started = 1;
3985
3986         return 0;
3987 }
3988
3989
3990 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3991                                   struct wpa_ssid *ssid, int addr_allocated,
3992                                   int freq, int ht40)
3993 {
3994         struct p2p_go_neg_results params;
3995         int go = 0;
3996
3997         if (ssid->disabled != 2 || ssid->ssid == NULL)
3998                 return -1;
3999
4000         if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
4001             go == (ssid->mode == WPAS_MODE_P2P_GO)) {
4002                 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
4003                            "already running");
4004                 return 0;
4005         }
4006
4007         /* Make sure we are not running find during connection establishment */
4008         wpas_p2p_stop_find(wpa_s);
4009
4010         wpa_s->p2p_fallback_to_go_neg = 0;
4011
4012         if (ssid->mode == WPAS_MODE_INFRA)
4013                 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
4014
4015         if (ssid->mode != WPAS_MODE_P2P_GO)
4016                 return -1;
4017
4018         if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40))
4019                 return -1;
4020
4021         params.role_go = 1;
4022         if (ssid->passphrase == NULL ||
4023             os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
4024                 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
4025                            "group");
4026                 return -1;
4027         }
4028         os_strlcpy(params.passphrase, ssid->passphrase,
4029                    sizeof(params.passphrase));
4030         os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
4031         params.ssid_len = ssid->ssid_len;
4032         params.persistent_group = 1;
4033
4034         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
4035         if (wpa_s == NULL)
4036                 return -1;
4037
4038         wpas_start_wps_go(wpa_s, &params, 0);
4039
4040         return 0;
4041 }
4042
4043
4044 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
4045                                struct wpabuf *proberesp_ies)
4046 {
4047         struct wpa_supplicant *wpa_s = ctx;
4048         if (wpa_s->ap_iface) {
4049                 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
4050                 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
4051                         wpabuf_free(beacon_ies);
4052                         wpabuf_free(proberesp_ies);
4053                         return;
4054                 }
4055                 if (beacon_ies) {
4056                         wpabuf_free(hapd->p2p_beacon_ie);
4057                         hapd->p2p_beacon_ie = beacon_ies;
4058                 }
4059                 wpabuf_free(hapd->p2p_probe_resp_ie);
4060                 hapd->p2p_probe_resp_ie = proberesp_ies;
4061         } else {
4062                 wpabuf_free(beacon_ies);
4063                 wpabuf_free(proberesp_ies);
4064         }
4065         wpa_supplicant_ap_update_beacon(wpa_s);
4066 }
4067
4068
4069 static void wpas_p2p_idle_update(void *ctx, int idle)
4070 {
4071         struct wpa_supplicant *wpa_s = ctx;
4072         if (!wpa_s->ap_iface)
4073                 return;
4074         wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
4075         if (idle)
4076                 wpas_p2p_set_group_idle_timeout(wpa_s);
4077         else
4078                 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4079 }
4080
4081
4082 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
4083                                        struct wpa_ssid *ssid)
4084 {
4085         struct p2p_group *group;
4086         struct p2p_group_config *cfg;
4087
4088         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4089                 return NULL;
4090         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4091                 return NULL;
4092
4093         cfg = os_zalloc(sizeof(*cfg));
4094         if (cfg == NULL)
4095                 return NULL;
4096
4097         if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
4098                 cfg->persistent_group = 2;
4099         else if (ssid->p2p_persistent_group)
4100                 cfg->persistent_group = 1;
4101         os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
4102         if (wpa_s->max_stations &&
4103             wpa_s->max_stations < wpa_s->conf->max_num_sta)
4104                 cfg->max_clients = wpa_s->max_stations;
4105         else
4106                 cfg->max_clients = wpa_s->conf->max_num_sta;
4107         os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
4108         cfg->ssid_len = ssid->ssid_len;
4109         cfg->cb_ctx = wpa_s;
4110         cfg->ie_update = wpas_p2p_ie_update;
4111         cfg->idle_update = wpas_p2p_idle_update;
4112
4113         group = p2p_group_init(wpa_s->global->p2p, cfg);
4114         if (group == NULL)
4115                 os_free(cfg);
4116         if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
4117                 p2p_group_notif_formation_done(group);
4118         wpa_s->p2p_group = group;
4119         return group;
4120 }
4121
4122
4123 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4124                           int registrar)
4125 {
4126         struct wpa_ssid *ssid = wpa_s->current_ssid;
4127
4128         if (!wpa_s->p2p_in_provisioning) {
4129                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
4130                            "provisioning not in progress");
4131                 return;
4132         }
4133
4134         if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4135                 u8 go_dev_addr[ETH_ALEN];
4136                 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
4137                 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4138                                           ssid->ssid_len);
4139                 /* Clear any stored provisioning info */
4140                 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
4141         }
4142
4143         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
4144                              NULL);
4145         if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4146                 /*
4147                  * Use a separate timeout for initial data connection to
4148                  * complete to allow the group to be removed automatically if
4149                  * something goes wrong in this step before the P2P group idle
4150                  * timeout mechanism is taken into use.
4151                  */
4152                 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
4153                                        wpas_p2p_group_formation_timeout,
4154                                        wpa_s->parent, NULL);
4155         }
4156         if (wpa_s->global->p2p)
4157                 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
4158         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4159                 wpa_drv_wps_success_cb(wpa_s, peer_addr);
4160         wpas_group_formation_completed(wpa_s, 1);
4161 }
4162
4163
4164 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
4165                          struct wps_event_fail *fail)
4166 {
4167         if (!wpa_s->p2p_in_provisioning) {
4168                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
4169                            "provisioning not in progress");
4170                 return;
4171         }
4172
4173         if (wpa_s->go_params) {
4174                 p2p_clear_provisioning_info(
4175                         wpa_s->global->p2p,
4176                         wpa_s->go_params->peer_device_addr);
4177         }
4178
4179         wpas_notify_p2p_wps_failed(wpa_s, fail);
4180 }
4181
4182
4183 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4184                        const char *config_method,
4185                        enum wpas_p2p_prov_disc_use use)
4186 {
4187         u16 config_methods;
4188
4189         wpa_s->p2p_fallback_to_go_neg = 0;
4190         wpa_s->pending_pd_use = NORMAL_PD;
4191         if (os_strncmp(config_method, "display", 7) == 0)
4192                 config_methods = WPS_CONFIG_DISPLAY;
4193         else if (os_strncmp(config_method, "keypad", 6) == 0)
4194                 config_methods = WPS_CONFIG_KEYPAD;
4195         else if (os_strncmp(config_method, "pbc", 3) == 0 ||
4196                  os_strncmp(config_method, "pushbutton", 10) == 0)
4197                 config_methods = WPS_CONFIG_PUSHBUTTON;
4198         else {
4199                 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
4200                 return -1;
4201         }
4202
4203         if (use == WPAS_P2P_PD_AUTO) {
4204                 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
4205                 wpa_s->pending_pd_config_methods = config_methods;
4206                 wpa_s->p2p_auto_pd = 1;
4207                 wpa_s->p2p_auto_join = 0;
4208                 wpa_s->pending_pd_before_join = 0;
4209                 wpa_s->auto_pd_scan_retry = 0;
4210                 wpas_p2p_stop_find(wpa_s);
4211                 wpa_s->p2p_join_scan_count = 0;
4212                 os_get_time(&wpa_s->p2p_auto_started);
4213                 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
4214                            wpa_s->p2p_auto_started.sec,
4215                            wpa_s->p2p_auto_started.usec);
4216                 wpas_p2p_join_scan(wpa_s, NULL);
4217                 return 0;
4218         }
4219
4220         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4221                 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
4222                                                  config_methods,
4223                                                  use == WPAS_P2P_PD_FOR_JOIN);
4224         }
4225
4226         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
4227                 return -1;
4228
4229         return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
4230                                  config_methods, use == WPAS_P2P_PD_FOR_JOIN,
4231                                  0);
4232 }
4233
4234
4235 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
4236                               char *end)
4237 {
4238         return p2p_scan_result_text(ies, ies_len, buf, end);
4239 }
4240
4241
4242 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
4243 {
4244         if (!wpa_s->pending_action_tx)
4245                 return;
4246
4247         wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
4248                    "operation request");
4249         wpabuf_free(wpa_s->pending_action_tx);
4250         wpa_s->pending_action_tx = NULL;
4251 }
4252
4253
4254 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
4255                   enum p2p_discovery_type type,
4256                   unsigned int num_req_dev_types, const u8 *req_dev_types,
4257                   const u8 *dev_id, unsigned int search_delay)
4258 {
4259         wpas_p2p_clear_pending_action_tx(wpa_s);
4260         wpa_s->p2p_long_listen = 0;
4261
4262         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4263                 return wpa_drv_p2p_find(wpa_s, timeout, type);
4264
4265         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
4266             wpa_s->p2p_in_provisioning)
4267                 return -1;
4268
4269         wpa_supplicant_cancel_sched_scan(wpa_s);
4270
4271         return p2p_find(wpa_s->global->p2p, timeout, type,
4272                         num_req_dev_types, req_dev_types, dev_id,
4273                         search_delay);
4274 }
4275
4276
4277 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
4278 {
4279         wpas_p2p_clear_pending_action_tx(wpa_s);
4280         wpa_s->p2p_long_listen = 0;
4281         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4282         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4283         wpa_s->p2p_cb_on_scan_complete = 0;
4284
4285         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4286                 wpa_drv_p2p_stop_find(wpa_s);
4287                 return;
4288         }
4289
4290         if (wpa_s->global->p2p)
4291                 p2p_stop_find(wpa_s->global->p2p);
4292
4293         wpas_p2p_remove_pending_group_interface(wpa_s);
4294 }
4295
4296
4297 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
4298 {
4299         struct wpa_supplicant *wpa_s = eloop_ctx;
4300         wpa_s->p2p_long_listen = 0;
4301 }
4302
4303
4304 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
4305 {
4306         int res;
4307
4308         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4309                 return -1;
4310
4311         wpa_supplicant_cancel_sched_scan(wpa_s);
4312         wpas_p2p_clear_pending_action_tx(wpa_s);
4313
4314         if (timeout == 0) {
4315                 /*
4316                  * This is a request for unlimited Listen state. However, at
4317                  * least for now, this is mapped to a Listen state for one
4318                  * hour.
4319                  */
4320                 timeout = 3600;
4321         }
4322         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4323         wpa_s->p2p_long_listen = 0;
4324
4325         /*
4326          * Stop previous find/listen operation to avoid trying to request a new
4327          * remain-on-channel operation while the driver is still running the
4328          * previous one.
4329          */
4330         if (wpa_s->global->p2p)
4331                 p2p_stop_find(wpa_s->global->p2p);
4332
4333         res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
4334         if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
4335                 wpa_s->p2p_long_listen = timeout * 1000;
4336                 eloop_register_timeout(timeout, 0,
4337                                        wpas_p2p_long_listen_timeout,
4338                                        wpa_s, NULL);
4339         }
4340
4341         return res;
4342 }
4343
4344
4345 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
4346                           u8 *buf, size_t len, int p2p_group)
4347 {
4348         struct wpabuf *p2p_ie;
4349         int ret;
4350
4351         if (wpa_s->global->p2p_disabled)
4352                 return -1;
4353         if (wpa_s->global->p2p == NULL)
4354                 return -1;
4355         if (bss == NULL)
4356                 return -1;
4357
4358         p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
4359         ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
4360                                p2p_group, p2p_ie);
4361         wpabuf_free(p2p_ie);
4362
4363         return ret;
4364 }
4365
4366
4367 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
4368                           const u8 *dst, const u8 *bssid,
4369                           const u8 *ie, size_t ie_len, int ssi_signal)
4370 {
4371         if (wpa_s->global->p2p_disabled)
4372                 return 0;
4373         if (wpa_s->global->p2p == NULL)
4374                 return 0;
4375
4376         switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
4377                                  ie, ie_len)) {
4378         case P2P_PREQ_NOT_P2P:
4379                 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
4380                                  ssi_signal);
4381                 /* fall through */
4382         case P2P_PREQ_MALFORMED:
4383         case P2P_PREQ_NOT_LISTEN:
4384         case P2P_PREQ_NOT_PROCESSED:
4385         default: /* make gcc happy */
4386                 return 0;
4387         case P2P_PREQ_PROCESSED:
4388                 return 1;
4389         }
4390 }
4391
4392
4393 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
4394                         const u8 *sa, const u8 *bssid,
4395                         u8 category, const u8 *data, size_t len, int freq)
4396 {
4397         if (wpa_s->global->p2p_disabled)
4398                 return;
4399         if (wpa_s->global->p2p == NULL)
4400                 return;
4401
4402         p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
4403                       freq);
4404 }
4405
4406
4407 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
4408 {
4409         if (wpa_s->global->p2p_disabled)
4410                 return;
4411         if (wpa_s->global->p2p == NULL)
4412                 return;
4413
4414         p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4415 }
4416
4417
4418 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
4419 {
4420         p2p_group_deinit(wpa_s->p2p_group);
4421         wpa_s->p2p_group = NULL;
4422
4423         wpa_s->ap_configured_cb = NULL;
4424         wpa_s->ap_configured_cb_ctx = NULL;
4425         wpa_s->ap_configured_cb_data = NULL;
4426         wpa_s->connect_without_scan = NULL;
4427 }
4428
4429
4430 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
4431 {
4432         wpa_s->p2p_long_listen = 0;
4433
4434         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4435                 return wpa_drv_p2p_reject(wpa_s, addr);
4436
4437         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4438                 return -1;
4439
4440         return p2p_reject(wpa_s->global->p2p, addr);
4441 }
4442
4443
4444 /* Invite to reinvoke a persistent group */
4445 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4446                     struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
4447                     int ht40)
4448 {
4449         enum p2p_invite_role role;
4450         u8 *bssid = NULL;
4451
4452         wpa_s->p2p_persistent_go_freq = freq;
4453         wpa_s->p2p_go_ht40 = !!ht40;
4454         if (ssid->mode == WPAS_MODE_P2P_GO) {
4455                 role = P2P_INVITE_ROLE_GO;
4456                 if (peer_addr == NULL) {
4457                         wpa_printf(MSG_DEBUG, "P2P: Missing peer "
4458                                    "address in invitation command");
4459                         return -1;
4460                 }
4461                 if (wpas_p2p_create_iface(wpa_s)) {
4462                         if (wpas_p2p_add_group_interface(wpa_s,
4463                                                          WPA_IF_P2P_GO) < 0) {
4464                                 wpa_printf(MSG_ERROR, "P2P: Failed to "
4465                                            "allocate a new interface for the "
4466                                            "group");
4467                                 return -1;
4468                         }
4469                         bssid = wpa_s->pending_interface_addr;
4470                 } else
4471                         bssid = wpa_s->own_addr;
4472         } else {
4473                 role = P2P_INVITE_ROLE_CLIENT;
4474                 peer_addr = ssid->bssid;
4475         }
4476         wpa_s->pending_invite_ssid_id = ssid->id;
4477
4478         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4479                 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4480                                           ssid->ssid, ssid->ssid_len,
4481                                           go_dev_addr, 1);
4482
4483         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4484                 return -1;
4485
4486         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
4487                           ssid->ssid, ssid->ssid_len, freq, go_dev_addr, 1);
4488 }
4489
4490
4491 /* Invite to join an active group */
4492 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
4493                           const u8 *peer_addr, const u8 *go_dev_addr)
4494 {
4495         struct wpa_global *global = wpa_s->global;
4496         enum p2p_invite_role role;
4497         u8 *bssid = NULL;
4498         struct wpa_ssid *ssid;
4499         int persistent;
4500
4501         wpa_s->p2p_persistent_go_freq = 0;
4502         wpa_s->p2p_go_ht40 = 0;
4503
4504         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4505                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
4506                         break;
4507         }
4508         if (wpa_s == NULL) {
4509                 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
4510                 return -1;
4511         }
4512
4513         ssid = wpa_s->current_ssid;
4514         if (ssid == NULL) {
4515                 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
4516                            "invitation");
4517                 return -1;
4518         }
4519
4520         persistent = ssid->p2p_persistent_group &&
4521                 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
4522                                         ssid->ssid, ssid->ssid_len);
4523
4524         if (ssid->mode == WPAS_MODE_P2P_GO) {
4525                 role = P2P_INVITE_ROLE_ACTIVE_GO;
4526                 bssid = wpa_s->own_addr;
4527                 if (go_dev_addr == NULL)
4528                         go_dev_addr = wpa_s->global->p2p_dev_addr;
4529         } else {
4530                 role = P2P_INVITE_ROLE_CLIENT;
4531                 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
4532                         wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
4533                                    "invite to current group");
4534                         return -1;
4535                 }
4536                 bssid = wpa_s->bssid;
4537                 if (go_dev_addr == NULL &&
4538                     !is_zero_ether_addr(wpa_s->go_dev_addr))
4539                         go_dev_addr = wpa_s->go_dev_addr;
4540         }
4541         wpa_s->parent->pending_invite_ssid_id = -1;
4542
4543         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4544                 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4545                                           ssid->ssid, ssid->ssid_len,
4546                                           go_dev_addr, persistent);
4547
4548         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4549                 return -1;
4550
4551         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
4552                           ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
4553                           go_dev_addr, persistent);
4554 }
4555
4556
4557 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
4558 {
4559         struct wpa_ssid *ssid = wpa_s->current_ssid;
4560         const char *ssid_txt;
4561         u8 go_dev_addr[ETH_ALEN];
4562         int network_id = -1;
4563         int persistent;
4564         int freq;
4565
4566         if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
4567                 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4568                                      wpa_s->parent, NULL);
4569         }
4570
4571         if (!wpa_s->show_group_started || !ssid)
4572                 goto done;
4573
4574         wpa_s->show_group_started = 0;
4575
4576         ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
4577         os_memset(go_dev_addr, 0, ETH_ALEN);
4578         if (ssid->bssid_set)
4579                 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
4580         persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4581                                                ssid->ssid_len);
4582         os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
4583
4584         if (wpa_s->global->p2p_group_formation == wpa_s)
4585                 wpa_s->global->p2p_group_formation = NULL;
4586
4587         freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
4588                 (int) wpa_s->assoc_freq;
4589         if (ssid->passphrase == NULL && ssid->psk_set) {
4590                 char psk[65];
4591                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
4592                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
4593                         "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
4594                         MACSTR "%s",
4595                         wpa_s->ifname, ssid_txt, freq, psk,
4596                         MAC2STR(go_dev_addr),
4597                         persistent ? " [PERSISTENT]" : "");
4598         } else {
4599                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
4600                         "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
4601                         "go_dev_addr=" MACSTR "%s",
4602                         wpa_s->ifname, ssid_txt, freq,
4603                         ssid->passphrase ? ssid->passphrase : "",
4604                         MAC2STR(go_dev_addr),
4605                         persistent ? " [PERSISTENT]" : "");
4606         }
4607
4608         if (persistent)
4609                 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
4610                                                              ssid, go_dev_addr);
4611         if (network_id < 0)
4612                 network_id = ssid->id;
4613         wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
4614
4615 done:
4616         if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
4617             wpa_s->global->p2p != NULL) {
4618                 wpa_s->p2p_cb_on_scan_complete = 0;
4619                 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
4620                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
4621                                 "continued after successful connection");
4622                         p2p_increase_search_delay(
4623                                 wpa_s->global->p2p,
4624                                 wpas_p2p_search_delay(wpa_s));
4625                 }
4626         }
4627 }
4628
4629
4630 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
4631                           u32 interval1, u32 duration2, u32 interval2)
4632 {
4633         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4634                 return -1;
4635         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4636                 return -1;
4637
4638         if (wpa_s->wpa_state < WPA_ASSOCIATED ||
4639             wpa_s->current_ssid == NULL ||
4640             wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
4641                 return -1;
4642
4643         return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
4644                                 wpa_s->own_addr, wpa_s->assoc_freq,
4645                                 duration1, interval1, duration2, interval2);
4646 }
4647
4648
4649 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
4650                         unsigned int interval)
4651 {
4652         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4653                 return -1;
4654
4655         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4656                 return -1;
4657
4658         return p2p_ext_listen(wpa_s->global->p2p, period, interval);
4659 }
4660
4661
4662 static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
4663 {
4664         return wpa_s->current_ssid != NULL &&
4665                 wpa_s->current_ssid->p2p_group &&
4666                 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
4667 }
4668
4669
4670 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
4671 {
4672         struct wpa_supplicant *wpa_s = eloop_ctx;
4673
4674         if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
4675                 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
4676                            "disabled");
4677                 return;
4678         }
4679
4680         wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
4681                    "group");
4682         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
4683 }
4684
4685
4686 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
4687 {
4688         int timeout;
4689
4690         if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
4691                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
4692
4693         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4694                 return;
4695
4696         timeout = wpa_s->conf->p2p_group_idle;
4697         if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
4698             (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
4699             timeout = P2P_MAX_CLIENT_IDLE;
4700
4701         if (timeout == 0)
4702                 return;
4703
4704         if (timeout < 0) {
4705                 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
4706                         timeout = 0; /* special client mode no-timeout */
4707                 else
4708                         return;
4709         }
4710
4711         if (wpa_s->p2p_in_provisioning) {
4712                 /*
4713                  * Use the normal group formation timeout during the
4714                  * provisioning phase to avoid terminating this process too
4715                  * early due to group idle timeout.
4716                  */
4717                 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4718                            "during provisioning");
4719                 return;
4720         }
4721 #ifndef ANDROID_P2P
4722         if (wpa_s->show_group_started) {
4723                 /*
4724                  * Use the normal group formation timeout between the end of
4725                  * the provisioning phase and completion of 4-way handshake to
4726                  * avoid terminating this process too early due to group idle
4727                  * timeout.
4728                  */
4729                 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4730                            "while waiting for initial 4-way handshake to "
4731                            "complete");
4732                 return;
4733         }
4734 #endif
4735
4736         wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
4737                    timeout);
4738         eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
4739                                wpa_s, NULL);
4740 }
4741
4742
4743 /* Returns 1 if the interface was removed */
4744 int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4745                           u16 reason_code, const u8 *ie, size_t ie_len,
4746                           int locally_generated)
4747 {
4748         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4749                 return 0;
4750         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4751                 return 0;
4752
4753         if (!locally_generated)
4754                 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4755                                  ie_len);
4756
4757         if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
4758             wpa_s->current_ssid &&
4759             wpa_s->current_ssid->p2p_group &&
4760             wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
4761                 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
4762                            "session is ending");
4763                 if (wpas_p2p_group_delete(wpa_s,
4764                                           P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
4765                     > 0)
4766                         return 1;
4767         }
4768
4769         return 0;
4770 }
4771
4772
4773 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4774                              u16 reason_code, const u8 *ie, size_t ie_len,
4775                              int locally_generated)
4776 {
4777         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4778                 return;
4779         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4780                 return;
4781
4782         if (!locally_generated)
4783                 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4784                                    ie_len);
4785 }
4786
4787
4788 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
4789 {
4790         struct p2p_data *p2p = wpa_s->global->p2p;
4791
4792         if (p2p == NULL)
4793                 return;
4794
4795         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4796                 return;
4797
4798         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
4799                 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
4800
4801         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
4802                 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
4803
4804         if (wpa_s->wps &&
4805             (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
4806                 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
4807
4808         if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
4809                 p2p_set_uuid(p2p, wpa_s->wps->uuid);
4810
4811         if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
4812                 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
4813                 p2p_set_model_name(p2p, wpa_s->conf->model_name);
4814                 p2p_set_model_number(p2p, wpa_s->conf->model_number);
4815                 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
4816         }
4817
4818         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
4819                 p2p_set_sec_dev_types(p2p,
4820                                       (void *) wpa_s->conf->sec_device_type,
4821                                       wpa_s->conf->num_sec_device_types);
4822
4823         if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
4824                 int i;
4825                 p2p_remove_wps_vendor_extensions(p2p);
4826                 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4827                         if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4828                                 continue;
4829                         p2p_add_wps_vendor_extension(
4830                                 p2p, wpa_s->conf->wps_vendor_ext[i]);
4831                 }
4832         }
4833
4834         if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
4835             wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4836                 char country[3];
4837                 country[0] = wpa_s->conf->country[0];
4838                 country[1] = wpa_s->conf->country[1];
4839                 country[2] = 0x04;
4840                 p2p_set_country(p2p, country);
4841         }
4842
4843         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
4844                 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
4845                                      wpa_s->conf->p2p_ssid_postfix ?
4846                                      os_strlen(wpa_s->conf->p2p_ssid_postfix) :
4847                                      0);
4848         }
4849
4850         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
4851                 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
4852
4853         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
4854                 u8 reg_class, channel;
4855                 int ret;
4856                 unsigned int r;
4857                 if (wpa_s->conf->p2p_listen_reg_class &&
4858                     wpa_s->conf->p2p_listen_channel) {
4859                         reg_class = wpa_s->conf->p2p_listen_reg_class;
4860                         channel = wpa_s->conf->p2p_listen_channel;
4861                 } else {
4862                         reg_class = 81;
4863                         /*
4864                          * Pick one of the social channels randomly as the
4865                          * listen channel.
4866                          */
4867                         os_get_random((u8 *) &r, sizeof(r));
4868                         channel = 1 + (r % 3) * 5;
4869                 }
4870                 ret = p2p_set_listen_channel(p2p, reg_class, channel);
4871                 if (ret)
4872                         wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
4873                                    "failed: %d", ret);
4874         }
4875         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
4876                 u8 op_reg_class, op_channel, cfg_op_channel;
4877                 int ret = 0;
4878                 unsigned int r;
4879                 if (wpa_s->conf->p2p_oper_reg_class &&
4880                     wpa_s->conf->p2p_oper_channel) {
4881                         op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4882                         op_channel = wpa_s->conf->p2p_oper_channel;
4883                         cfg_op_channel = 1;
4884                 } else {
4885                         op_reg_class = 81;
4886                         /*
4887                          * Use random operation channel from (1, 6, 11)
4888                          *if no other preference is indicated.
4889                          */
4890                         os_get_random((u8 *) &r, sizeof(r));
4891                         op_channel = 1 + (r % 3) * 5;
4892                         cfg_op_channel = 0;
4893                 }
4894                 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
4895                                            cfg_op_channel);
4896                 if (ret)
4897                         wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
4898                                    "failed: %d", ret);
4899         }
4900
4901         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
4902                 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
4903                                       wpa_s->conf->p2p_pref_chan) < 0) {
4904                         wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
4905                                    "update failed");
4906                 }
4907         }
4908 }
4909
4910
4911 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
4912                      int duration)
4913 {
4914         if (!wpa_s->ap_iface)
4915                 return -1;
4916         return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
4917                                    duration);
4918 }
4919
4920
4921 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
4922 {
4923         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4924                 return -1;
4925         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4926                 return -1;
4927
4928         wpa_s->global->cross_connection = enabled;
4929         p2p_set_cross_connect(wpa_s->global->p2p, enabled);
4930
4931         if (!enabled) {
4932                 struct wpa_supplicant *iface;
4933
4934                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
4935                 {
4936                         if (iface->cross_connect_enabled == 0)
4937                                 continue;
4938
4939                         iface->cross_connect_enabled = 0;
4940                         iface->cross_connect_in_use = 0;
4941                         wpa_msg(iface->parent, MSG_INFO,
4942                                 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4943                                 iface->ifname, iface->cross_connect_uplink);
4944                 }
4945         }
4946
4947         return 0;
4948 }
4949
4950
4951 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
4952 {
4953         struct wpa_supplicant *iface;
4954
4955         if (!uplink->global->cross_connection)
4956                 return;
4957
4958         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4959                 if (!iface->cross_connect_enabled)
4960                         continue;
4961                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4962                     0)
4963                         continue;
4964                 if (iface->ap_iface == NULL)
4965                         continue;
4966                 if (iface->cross_connect_in_use)
4967                         continue;
4968
4969                 iface->cross_connect_in_use = 1;
4970                 wpa_msg(iface->parent, MSG_INFO,
4971                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4972                         iface->ifname, iface->cross_connect_uplink);
4973         }
4974 }
4975
4976
4977 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
4978 {
4979         struct wpa_supplicant *iface;
4980
4981         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4982                 if (!iface->cross_connect_enabled)
4983                         continue;
4984                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4985                     0)
4986                         continue;
4987                 if (!iface->cross_connect_in_use)
4988                         continue;
4989
4990                 wpa_msg(iface->parent, MSG_INFO,
4991                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4992                         iface->ifname, iface->cross_connect_uplink);
4993                 iface->cross_connect_in_use = 0;
4994         }
4995 }
4996
4997
4998 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4999 {
5000         if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
5001             wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
5002             wpa_s->cross_connect_disallowed)
5003                 wpas_p2p_disable_cross_connect(wpa_s);
5004         else
5005                 wpas_p2p_enable_cross_connect(wpa_s);
5006         if (!wpa_s->ap_iface &&
5007             eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
5008                 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
5009 }
5010
5011
5012 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
5013 {
5014         wpas_p2p_disable_cross_connect(wpa_s);
5015         if (!wpa_s->ap_iface &&
5016             !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
5017                                          wpa_s, NULL))
5018                 wpas_p2p_set_group_idle_timeout(wpa_s);
5019 }
5020
5021
5022 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
5023 {
5024         struct wpa_supplicant *iface;
5025
5026         if (!wpa_s->global->cross_connection)
5027                 return;
5028
5029         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
5030                 if (iface == wpa_s)
5031                         continue;
5032                 if (iface->drv_flags &
5033                     WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
5034                         continue;
5035                 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
5036                         continue;
5037
5038                 wpa_s->cross_connect_enabled = 1;
5039                 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
5040                            sizeof(wpa_s->cross_connect_uplink));
5041                 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
5042                            "%s to %s whenever uplink is available",
5043                            wpa_s->ifname, wpa_s->cross_connect_uplink);
5044
5045                 if (iface->ap_iface || iface->current_ssid == NULL ||
5046                     iface->current_ssid->mode != WPAS_MODE_INFRA ||
5047                     iface->cross_connect_disallowed ||
5048                     iface->wpa_state != WPA_COMPLETED)
5049                         break;
5050
5051                 wpa_s->cross_connect_in_use = 1;
5052                 wpa_msg(wpa_s->parent, MSG_INFO,
5053                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
5054                         wpa_s->ifname, wpa_s->cross_connect_uplink);
5055                 break;
5056         }
5057 }
5058
5059
5060 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
5061 {
5062         if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
5063             !wpa_s->p2p_in_provisioning)
5064                 return 0; /* not P2P client operation */
5065
5066         wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
5067                    "session overlap");
5068         if (wpa_s != wpa_s->parent)
5069                 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
5070
5071         if (wpa_s->global->p2p)
5072                 p2p_group_formation_failed(wpa_s->global->p2p);
5073
5074         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5075                              wpa_s->parent, NULL);
5076
5077         wpas_group_formation_completed(wpa_s, 0);
5078         return 1;
5079 }
5080
5081
5082 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
5083 {
5084         struct p2p_channels chan;
5085
5086         if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
5087                 return;
5088
5089         os_memset(&chan, 0, sizeof(chan));
5090         if (wpas_p2p_setup_channels(wpa_s, &chan)) {
5091                 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
5092                            "channel list");
5093                 return;
5094         }
5095
5096         p2p_update_channel_list(wpa_s->global->p2p, &chan);
5097 }
5098
5099
5100 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
5101 {
5102         struct wpa_global *global = wpa_s->global;
5103         int found = 0;
5104         const u8 *peer;
5105
5106         if (global->p2p == NULL)
5107                 return -1;
5108
5109         wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
5110
5111         if (wpa_s->pending_interface_name[0] &&
5112             !is_zero_ether_addr(wpa_s->pending_interface_addr))
5113                 found = 1;
5114
5115         peer = p2p_get_go_neg_peer(global->p2p);
5116         if (peer) {
5117                 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
5118                            MACSTR, MAC2STR(peer));
5119                 p2p_unauthorize(global->p2p, peer);
5120                 found = 1;
5121         }
5122
5123         wpas_p2p_stop_find(wpa_s);
5124
5125         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5126                 if (wpa_s == global->p2p_group_formation &&
5127                     (wpa_s->p2p_in_provisioning ||
5128                      wpa_s->parent->pending_interface_type ==
5129                      WPA_IF_P2P_CLIENT)) {
5130                         wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
5131                                    "formation found - cancelling",
5132                                    wpa_s->ifname);
5133                         found = 1;
5134                         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5135                                              wpa_s->parent, NULL);
5136                         wpas_p2p_group_delete(wpa_s,
5137                                               P2P_GROUP_REMOVAL_REQUESTED);
5138                         break;
5139                 }
5140         }
5141
5142         if (!found) {
5143                 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
5144                 return -1;
5145         }
5146
5147         return 0;
5148 }
5149
5150
5151 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
5152 {
5153         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
5154                 return;
5155
5156         wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
5157                    "being available anymore");
5158         wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
5159 }
5160
5161
5162 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
5163                                    int freq_24, int freq_5, int freq_overall)
5164 {
5165         struct p2p_data *p2p = wpa_s->global->p2p;
5166         if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5167                 return;
5168         p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
5169 }
5170
5171
5172 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
5173 {
5174         u8 peer[ETH_ALEN];
5175         struct p2p_data *p2p = wpa_s->global->p2p;
5176
5177         if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5178                 return -1;
5179
5180         if (hwaddr_aton(addr, peer))
5181                 return -1;
5182
5183         return p2p_unauthorize(p2p, peer);
5184 }
5185
5186
5187 /**
5188  * wpas_p2p_disconnect - Disconnect from a P2P Group
5189  * @wpa_s: Pointer to wpa_supplicant data
5190  * Returns: 0 on success, -1 on failure
5191  *
5192  * This can be used to disconnect from a group in which the local end is a P2P
5193  * Client or to end a P2P Group in case the local end is the Group Owner. If a
5194  * virtual network interface was created for this group, that interface will be
5195  * removed. Otherwise, only the configured P2P group network will be removed
5196  * from the interface.
5197  */
5198 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
5199 {
5200
5201         if (wpa_s == NULL)
5202                 return -1;
5203
5204         return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
5205                 -1 : 0;
5206 }
5207
5208
5209 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
5210 {
5211         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5212                 return 0;
5213
5214         return p2p_in_progress(wpa_s->global->p2p);
5215 }
5216
5217
5218 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
5219                               struct wpa_ssid *ssid)
5220 {
5221         if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
5222             eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5223                                  wpa_s->parent, NULL) > 0) {
5224                 /**
5225                  * Remove the network by scheduling the group formation
5226                  * timeout to happen immediately. The teardown code
5227                  * needs to be scheduled to run asynch later so that we
5228                  * don't delete data from under ourselves unexpectedly.
5229                  * Calling wpas_p2p_group_formation_timeout directly
5230                  * causes a series of crashes in WPS failure scenarios.
5231                  */
5232                 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
5233                            "P2P group network getting removed");
5234                 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
5235                                        wpa_s->parent, NULL);
5236         }
5237 }
5238
5239
5240 struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
5241                                           const u8 *addr, const u8 *ssid,
5242                                           size_t ssid_len)
5243 {
5244         struct wpa_ssid *s;
5245         size_t i;
5246
5247         for (s = wpa_s->conf->ssid; s; s = s->next) {
5248                 if (s->disabled != 2)
5249                         continue;
5250                 if (ssid &&
5251                     (ssid_len != s->ssid_len ||
5252                      os_memcmp(ssid, s->ssid, ssid_len) != 0))
5253                         continue;
5254                 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
5255                         return s; /* peer is GO in the persistent group */
5256                 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
5257                         continue;
5258                 for (i = 0; i < s->num_p2p_clients; i++) {
5259                         if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
5260                                       addr, ETH_ALEN) == 0)
5261                                 return s; /* peer is P2P client in persistent
5262                                            * group */
5263                 }
5264         }
5265
5266         return NULL;
5267 }
5268
5269
5270 void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
5271                                        const u8 *addr)
5272 {
5273         if (addr == NULL)
5274                 return;
5275         wpas_p2p_add_persistent_group_client(wpa_s, addr);
5276 }
5277
5278
5279 static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
5280                                         int group_added)
5281 {
5282         struct wpa_supplicant *group = wpa_s;
5283         eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
5284         if (wpa_s->global->p2p_group_formation)
5285                 group = wpa_s->global->p2p_group_formation;
5286         wpa_s = wpa_s->parent;
5287         offchannel_send_action_done(wpa_s);
5288         if (group_added)
5289                 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
5290         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
5291         wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
5292                          wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
5293                          0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
5294                          wpa_s->p2p_persistent_id,
5295                          wpa_s->p2p_pd_before_go_neg,
5296                          wpa_s->p2p_go_ht40);
5297 }
5298
5299
5300 int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
5301 {
5302         if (!wpa_s->p2p_fallback_to_go_neg ||
5303             wpa_s->p2p_in_provisioning <= 5)
5304                 return 0;
5305
5306         if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
5307                 return 0; /* peer operating as a GO */
5308
5309         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
5310                 "fallback to GO Negotiation");
5311         wpas_p2p_fallback_to_go_neg(wpa_s, 1);
5312
5313         return 1;
5314 }
5315
5316
5317 unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
5318 {
5319         const char *rn, *rn2;
5320         struct wpa_supplicant *ifs;
5321
5322         if (wpa_s->wpa_state > WPA_SCANNING) {
5323                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
5324                         "concurrent operation",
5325                         P2P_CONCURRENT_SEARCH_DELAY);
5326                 return P2P_CONCURRENT_SEARCH_DELAY;
5327         }
5328
5329         if (!wpa_s->driver->get_radio_name)
5330                 return 0;
5331         rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
5332         if (rn == NULL || rn[0] == '\0')
5333                 return 0;
5334
5335         for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
5336                 if (ifs == wpa_s || !ifs->driver->get_radio_name)
5337                         continue;
5338
5339                 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
5340                 if (!rn2 || os_strcmp(rn, rn2) != 0)
5341                         continue;
5342                 if (ifs->wpa_state > WPA_SCANNING) {
5343                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
5344                                 "delay due to concurrent operation on "
5345                                 "interface %s",
5346                                 P2P_CONCURRENT_SEARCH_DELAY, ifs->ifname);
5347                         return P2P_CONCURRENT_SEARCH_DELAY;
5348                 }
5349         }
5350
5351         return 0;
5352 }
5353
5354 #ifdef ANDROID_P2P
5355 int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq)
5356 {
5357         struct wpa_supplicant *iface = NULL;
5358         struct p2p_data *p2p = wpa_s->global->p2p;
5359
5360         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
5361                 if((iface->p2p_group_interface) && (iface->current_ssid) &&
5362                         (iface->current_ssid->frequency != freq)) {
5363
5364                         if (iface->p2p_group_interface == P2P_GROUP_INTERFACE_GO) {
5365                                         /* Try to see whether we can move the GO. If it
5366                                          * is not possible, remove the GO interface
5367                                          */
5368                                         if(wpa_drv_switch_channel(iface, freq) == 0) {
5369                                                         wpa_printf(MSG_ERROR, "P2P: GO Moved to freq(%d)", freq);
5370                                                         iface->current_ssid->frequency = freq;
5371                                                         continue;
5372                                         }
5373                         }
5374
5375                         /* If GO cannot be moved or if the conflicting interface is a
5376                          * P2P Client, remove the interface depending up on the connection
5377                          * priority */
5378                         if(!wpas_is_p2p_prioritized(wpa_s)) {
5379                                 /* STA connection has priority over existing
5380                                  * P2P connection. So remove the interface */
5381                                 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to Single channel"
5382                                                 "concurrent mode frequency conflict");
5383                                 wpas_p2p_group_delete(iface, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
5384                         } else {
5385                                 /* Existing connection has the priority. Disable the newly
5386                  * selected network and let the application know about it.
5387                                  */
5388                                 return -1;
5389                         }
5390                 }
5391         }
5392         return 0;
5393 }
5394 #endif