wpa_supplicant/p2p_supplicant.c

   1 /*
   2  * wpa_supplicant - P2P
   3  * Copyright (c) 2009-2010, Atheros Communications
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "includes.h"
  16
  17 #include "common.h"
  18 #include "eloop.h"
  19 #include "common/ieee802_11_common.h"
  20 #include "common/ieee802_11_defs.h"
  21 #include "common/wpa_ctrl.h"
  22 #include "wps/wps_i.h"
  23 #include "p2p/p2p.h"
  24 #include "ap/hostapd.h"
  25 #include "ap/p2p_hostapd.h"
  26 #include "wpa_supplicant_i.h"
  27 #include "driver_i.h"
  28 #include "ap.h"
  29 #include "config_ssid.h"
  30 #include "config.h"
  31 #include "mlme.h"
  32 #include "notify.h"
  33 #include "scan.h"
  34 #include "bss.h"
  35 #include "wps_supplicant.h"
  36 #include "p2p_supplicant.h"
  37
  38
  39 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
  40 static struct wpa_supplicant *
  41 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
  42                          int go);
  43 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
  44 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
  45 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
  46                          const u8 *dev_addr, enum p2p_wps_method wps_method);
  47 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
  48 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
  49
  50
  51 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
  52                                       struct wpa_scan_results *scan_res)
  53 {
  54         size_t i;
  55
  56         if (wpa_s->global->p2p_disabled)
  57                 return;
  58
  59         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
  60                    (int) scan_res->num);
  61
  62         for (i = 0; i < scan_res->num; i++) {
  63                 struct wpa_scan_res *bss = scan_res->res[i];
  64                 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
  65                                          bss->freq, bss->level,
  66                                          (const u8 *) (bss + 1),
  67                                          bss->ie_len) > 0)
  68                         return;
  69         }
  70
  71         p2p_scan_res_handled(wpa_s->global->p2p);
  72 }
  73
  74
  75 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq)
  76 {
  77         struct wpa_supplicant *wpa_s = ctx;
  78         struct wpa_driver_scan_params params;
  79         int ret;
  80         struct wpabuf *wps_ie, *ies;
  81         int social_channels[] = { 2412, 2437, 2462, 0, 0 };
  82
  83         os_memset(&params, 0, sizeof(params));
  84
  85         /* P2P Wildcard SSID */
  86         params.num_ssids = 1;
  87         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
  88         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
  89
  90         wpa_s->wps->dev.p2p = 1;
  91         wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
  92                                         WPS_REQ_ENROLLEE);
  93         if (wps_ie == NULL)
  94                 return -1;
  95
  96         ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
  97         if (ies == NULL) {
  98                 wpabuf_free(wps_ie);
  99                 return -1;
 100         }
 101         wpabuf_put_buf(ies, wps_ie);
 102         wpabuf_free(wps_ie);
 103
 104         p2p_scan_ie(wpa_s->global->p2p, ies);
 105
 106         params.extra_ies = wpabuf_head(ies);
 107         params.extra_ies_len = wpabuf_len(ies);
 108
 109         switch (type) {
 110         case P2P_SCAN_SOCIAL:
 111                 params.freqs = social_channels;
 112                 break;
 113         case P2P_SCAN_FULL:
 114                 break;
 115         case P2P_SCAN_SPECIFIC:
 116                 social_channels[0] = freq;
 117                 social_channels[1] = 0;
 118                 params.freqs = social_channels;
 119                 break;
 120         case P2P_SCAN_SOCIAL_PLUS_ONE:
 121                 social_channels[3] = freq;
 122                 params.freqs = social_channels;
 123                 break;
 124         }
 125
 126         wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
 127         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
 128                 ret = ieee80211_sta_req_scan(wpa_s, &params);
 129         else
 130                 ret = wpa_drv_scan(wpa_s, &params);
 131
 132         wpabuf_free(ies);
 133
 134         return ret;
 135 }
 136
 137
 138 #ifdef CONFIG_CLIENT_MLME
 139 static void p2p_rx_action_mlme(void *ctx, const u8 *buf, size_t len, int freq)
 140 {
 141         struct wpa_supplicant *wpa_s = ctx;
 142         const struct ieee80211_mgmt *mgmt;
 143         size_t hdr_len;
 144
 145         if (wpa_s->global->p2p_disabled)
 146                 return;
 147         mgmt = (const struct ieee80211_mgmt *) buf;
 148         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 149         if (hdr_len > len)
 150                 return;
 151         p2p_rx_action(wpa_s->global->p2p, mgmt->da, mgmt->sa, mgmt->bssid,
 152                       mgmt->u.action.category,
 153                       &mgmt->u.action.u.vs_public_action.action,
 154                       len - hdr_len, freq);
 155 }
 156 #endif /* CONFIG_CLIENT_MLME */
 157
 158
 159 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
 160 {
 161         switch (p2p_group_interface) {
 162         case P2P_GROUP_INTERFACE_PENDING:
 163                 return WPA_IF_P2P_GROUP;
 164         case P2P_GROUP_INTERFACE_GO:
 165                 return WPA_IF_P2P_GO;
 166         case P2P_GROUP_INTERFACE_CLIENT:
 167                 return WPA_IF_P2P_CLIENT;
 168         }
 169
 170         return WPA_IF_P2P_GROUP;
 171 }
 172
 173
 174 static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s)
 175 {
 176         struct wpa_ssid *ssid;
 177         char *gtype;
 178
 179         ssid = wpa_s->current_ssid;
 180         if (ssid == NULL) {
 181                 /*
 182                  * The current SSID was not known, but there may still be a
 183                  * pending P2P group interface waiting for provisioning.
 184                  */
 185                 ssid = wpa_s->conf->ssid;
 186                 while (ssid) {
 187                         if (ssid->p2p_group &&
 188                             (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 189                              (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
 190                                 break;
 191                         ssid = ssid->next;
 192                 }
 193         }
 194         if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
 195                 gtype = "GO";
 196         else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
 197                  (ssid && ssid->mode == WPAS_MODE_INFRA)) {
 198                 wpa_s->reassociate = 0;
 199                 wpa_s->disconnected = 1;
 200                 wpa_supplicant_deauthenticate(wpa_s,
 201                                               WLAN_REASON_DEAUTH_LEAVING);
 202                 gtype = "client";
 203         } else
 204                 gtype = "GO";
 205         if (wpa_s->cross_connect_in_use) {
 206                 wpa_s->cross_connect_in_use = 0;
 207                 wpa_msg(wpa_s->parent, MSG_INFO,
 208                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
 209                         wpa_s->ifname, wpa_s->cross_connect_uplink);
 210         }
 211         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_REMOVED "%s %s",
 212                 wpa_s->ifname, gtype);
 213         if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
 214                 struct wpa_global *global;
 215                 char *ifname;
 216                 enum wpa_driver_if_type type;
 217                 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
 218                         wpa_s->ifname);
 219                 global = wpa_s->global;
 220                 ifname = os_strdup(wpa_s->ifname);
 221                 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
 222                 wpa_supplicant_remove_iface(wpa_s->global, wpa_s);
 223                 wpa_s = global->ifaces;
 224                 if (wpa_s && ifname)
 225                         wpa_drv_if_remove(wpa_s, type, ifname);
 226                 os_free(ifname);
 227                 return;
 228         }
 229
 230         wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
 231         if (ssid && (ssid->p2p_group ||
 232                      ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 233                      (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
 234                 int id = ssid->id;
 235                 if (ssid == wpa_s->current_ssid)
 236                         wpa_s->current_ssid = NULL;
 237                 wpas_notify_network_removed(wpa_s, ssid);
 238                 wpa_config_remove_network(wpa_s->conf, id);
 239                 wpa_supplicant_clear_status(wpa_s);
 240         } else {
 241                 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
 242                            "found");
 243         }
 244         wpa_supplicant_ap_deinit(wpa_s);
 245 }
 246
 247
 248 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
 249                                      u8 *go_dev_addr,
 250                                      const u8 *ssid, size_t ssid_len)
 251 {
 252         struct wpa_bss *bss;
 253         const u8 *bssid;
 254         struct wpabuf *p2p;
 255         u8 group_capab;
 256         const u8 *addr;
 257
 258         if (wpa_s->go_params)
 259                 bssid = wpa_s->go_params->peer_interface_addr;
 260         else
 261                 bssid = wpa_s->bssid;
 262
 263         bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
 264         if (bss == NULL) {
 265                 u8 iface_addr[ETH_ALEN];
 266                 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
 267                                            iface_addr) == 0)
 268                         bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
 269         }
 270         if (bss == NULL) {
 271                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 272                            "group is persistent - BSS " MACSTR " not found",
 273                            MAC2STR(bssid));
 274                 return 0;
 275         }
 276
 277         p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
 278         if (p2p == NULL) {
 279                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 280                            "group is persistent - BSS " MACSTR
 281                            " did not include P2P IE", MAC2STR(bssid));
 282                 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
 283                             (u8 *) (bss + 1), bss->ie_len);
 284                 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
 285                             ((u8 *) bss + 1) + bss->ie_len,
 286                             bss->beacon_ie_len);
 287                 return 0;
 288         }
 289
 290         group_capab = p2p_get_group_capab(p2p);
 291         addr = p2p_get_go_dev_addr(p2p);
 292         wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
 293                    "group_capab=0x%x", group_capab);
 294         if (addr) {
 295                 os_memcpy(go_dev_addr, addr, ETH_ALEN);
 296                 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
 297                            MAC2STR(addr));
 298         } else
 299                 os_memset(go_dev_addr, 0, ETH_ALEN);
 300         wpabuf_free(p2p);
 301
 302         wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
 303                    "go_dev_addr=" MACSTR,
 304                    MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
 305
 306         return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
 307 }
 308
 309
 310 static void wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
 311                                             struct wpa_ssid *ssid,
 312                                             const u8 *go_dev_addr)
 313 {
 314         struct wpa_ssid *s;
 315         int changed = 0;
 316
 317         wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
 318                    "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
 319         for (s = wpa_s->conf->ssid; s; s = s->next) {
 320                 if (s->disabled == 2 &&
 321                     os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
 322                     s->ssid_len == ssid->ssid_len &&
 323                     os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
 324                         break;
 325         }
 326
 327         if (s) {
 328                 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
 329                            "entry");
 330                 if (ssid->passphrase && !s->passphrase)
 331                         changed = 1;
 332                 else if (ssid->passphrase && s->passphrase &&
 333                          os_strcmp(ssid->passphrase, s->passphrase) != 0)
 334                         changed = 1;
 335         } else {
 336                 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
 337                            "entry");
 338                 changed = 1;
 339                 s = wpa_config_add_network(wpa_s->conf);
 340                 if (s == NULL)
 341                         return;
 342                 wpa_config_set_network_defaults(s);
 343         }
 344
 345         s->p2p_group = 1;
 346         s->p2p_persistent_group = 1;
 347         s->disabled = 2;
 348         s->bssid_set = 1;
 349         os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
 350         s->mode = ssid->mode;
 351         s->auth_alg = WPA_AUTH_ALG_OPEN;
 352         s->key_mgmt = WPA_KEY_MGMT_PSK;
 353         s->proto = WPA_PROTO_RSN;
 354         s->pairwise_cipher = WPA_CIPHER_CCMP;
 355         if (ssid->passphrase) {
 356                 os_free(s->passphrase);
 357                 s->passphrase = os_strdup(ssid->passphrase);
 358         }
 359         if (ssid->psk_set) {
 360                 s->psk_set = 1;
 361                 os_memcpy(s->psk, ssid->psk, 32);
 362         }
 363         if (s->passphrase && !s->psk_set)
 364                 wpa_config_update_psk(s);
 365         if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
 366                 os_free(s->ssid);
 367                 s->ssid = os_malloc(ssid->ssid_len);
 368         }
 369         if (s->ssid) {
 370                 s->ssid_len = ssid->ssid_len;
 371                 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
 372         }
 373
 374 #ifndef CONFIG_NO_CONFIG_WRITE
 375         if (changed && wpa_s->conf->update_config &&
 376             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 377                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
 378         }
 379 #endif /* CONFIG_NO_CONFIG_WRITE */
 380 }
 381
 382
 383 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
 384                                            int success)
 385 {
 386         struct wpa_ssid *ssid;
 387         const char *ssid_txt;
 388         int client;
 389         int persistent;
 390         u8 go_dev_addr[ETH_ALEN];
 391
 392         /*
 393          * This callback is likely called for the main interface. Update wpa_s
 394          * to use the group interface if a new interface was created for the
 395          * group.
 396          */
 397         if (wpa_s->global->p2p_group_formation)
 398                 wpa_s = wpa_s->global->p2p_group_formation;
 399         wpa_s->p2p_in_provisioning = 0;
 400
 401         if (!success) {
 402                 wpa_msg(wpa_s->parent, MSG_INFO,
 403                         P2P_EVENT_GROUP_FORMATION_FAILURE);
 404                 wpas_p2p_group_delete(wpa_s);
 405                 return;
 406         }
 407
 408         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
 409
 410         ssid = wpa_s->current_ssid;
 411         if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
 412                 ssid->mode = WPAS_MODE_P2P_GO;
 413                 p2p_group_notif_formation_done(wpa_s->p2p_group);
 414                 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
 415         }
 416
 417         persistent = 0;
 418         if (ssid) {
 419                 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
 420                 client = ssid->mode == WPAS_MODE_INFRA;
 421                 if (ssid->mode == WPAS_MODE_P2P_GO) {
 422                         persistent = ssid->p2p_persistent_group;
 423                         os_memcpy(go_dev_addr, wpa_s->parent->own_addr,
 424                                   ETH_ALEN);
 425                 } else
 426                         persistent = wpas_p2p_persistent_group(wpa_s,
 427                                                                go_dev_addr,
 428                                                                ssid->ssid,
 429                                                                ssid->ssid_len);
 430         } else {
 431                 ssid_txt = "";
 432                 client = wpa_s->p2p_group_interface ==
 433                         P2P_GROUP_INTERFACE_CLIENT;
 434         }
 435
 436         wpa_s->show_group_started = 0;
 437         if (client) {
 438                 /*
 439                  * Indicate event only after successfully completed 4-way
 440                  * handshake, i.e., when the interface is ready for data
 441                  * packets.
 442                  */
 443                 wpa_s->show_group_started = 1;
 444         } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
 445                 char psk[65];
 446                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
 447                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 448                         "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
 449                         "%s",
 450                         wpa_s->ifname, ssid_txt, ssid->frequency, psk,
 451                         MAC2STR(go_dev_addr),
 452                         persistent ? " [PERSISTENT]" : "");
 453                 wpas_p2p_cross_connect_setup(wpa_s);
 454         } else {
 455                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 456                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 457                         "go_dev_addr=" MACSTR "%s",
 458                         wpa_s->ifname, ssid_txt, ssid->frequency,
 459                         ssid && ssid->passphrase ? ssid->passphrase : "",
 460                         MAC2STR(go_dev_addr),
 461                         persistent ? " [PERSISTENT]" : "");
 462                 wpas_p2p_cross_connect_setup(wpa_s);
 463         }
 464
 465         if (persistent)
 466                 wpas_p2p_store_persistent_group(wpa_s->parent, ssid,
 467                                                 go_dev_addr);
 468 }
 469
 470
 471 static void wpas_send_action_cb(void *eloop_ctx, void *timeout_ctx)
 472 {
 473         struct wpa_supplicant *wpa_s = eloop_ctx;
 474         struct wpa_supplicant *iface;
 475         int res;
 476         int without_roc;
 477
 478         without_roc = wpa_s->pending_action_without_roc;
 479         wpa_s->pending_action_without_roc = 0;
 480         wpa_printf(MSG_DEBUG, "P2P: Send Action callback (without_roc=%d "
 481                    "pending_action_tx=%p)",
 482                    without_roc, wpa_s->pending_action_tx);
 483
 484         if (wpa_s->pending_action_tx == NULL)
 485                 return;
 486
 487         if (wpa_s->off_channel_freq != wpa_s->pending_action_freq &&
 488             wpa_s->pending_action_freq != 0) {
 489                 wpa_printf(MSG_DEBUG, "P2P: Pending Action frame TX "
 490                            "waiting for another freq=%u (off_channel_freq=%u)",
 491                            wpa_s->pending_action_freq,
 492                            wpa_s->off_channel_freq);
 493                 if (without_roc && wpa_s->off_channel_freq == 0) {
 494                         /*
 495                          * We may get here if wpas_send_action() found us to be
 496                          * on the correct channel, but remain-on-channel cancel
 497                          * event was received before getting here.
 498                          */
 499                         wpa_printf(MSG_DEBUG, "P2P: Schedule "
 500                                    "remain-on-channel to send Action frame");
 501                         if (wpa_drv_remain_on_channel(
 502                                     wpa_s, wpa_s->pending_action_freq, 200) <
 503                             0) {
 504                                 wpa_printf(MSG_DEBUG, "P2P: Failed to request "
 505                                            "driver to remain on channel (%u "
 506                                            "MHz) for Action Frame TX",
 507                                            wpa_s->pending_action_freq);
 508                         } else
 509                                 wpa_s->roc_waiting_drv_freq =
 510                                         wpa_s->pending_action_freq;
 511                 }
 512                 return;
 513         }
 514
 515         /*
 516          * This call is likely going to be on the P2P device instance if the
 517          * driver uses a separate interface for that purpose. However, some
 518          * Action frames are actually sent within a P2P Group and when that is
 519          * the case, we need to follow power saving (e.g., GO buffering the
 520          * frame for a client in PS mode or a client following the advertised
 521          * NoA from its GO). To make that easier for the driver, select the
 522          * correct group interface here.
 523          */
 524         if (os_memcmp(wpa_s->pending_action_src, wpa_s->own_addr, ETH_ALEN) !=
 525             0) {
 526                 /*
 527                  * Try to find a group interface that matches with the source
 528                  * address.
 529                  */
 530                 iface = wpa_s->global->ifaces;
 531                 while (iface) {
 532                         if (os_memcmp(wpa_s->pending_action_src,
 533                                       iface->own_addr, ETH_ALEN) == 0)
 534                                 break;
 535                         iface = iface->next;
 536                 }
 537                 if (iface) {
 538                         wpa_printf(MSG_DEBUG, "P2P: Use group interface %s "
 539                                    "instead of interface %s for Action TX",
 540                                    iface->ifname, wpa_s->ifname);
 541                 } else
 542                         iface = wpa_s;
 543         } else
 544                 iface = wpa_s;
 545
 546         wpa_printf(MSG_DEBUG, "P2P: Sending pending Action frame to "
 547                    MACSTR " using interface %s",
 548                    MAC2STR(wpa_s->pending_action_dst), iface->ifname);
 549         res = wpa_drv_send_action(iface, wpa_s->pending_action_freq,
 550                                   wpa_s->pending_action_dst,
 551                                   wpa_s->pending_action_src,
 552                                   wpa_s->pending_action_bssid,
 553                                   wpabuf_head(wpa_s->pending_action_tx),
 554                                   wpabuf_len(wpa_s->pending_action_tx));
 555         if (res) {
 556                 wpa_printf(MSG_DEBUG, "P2P: Failed to send the pending "
 557                            "Action frame");
 558                 /*
 559                  * Use fake TX status event to allow P2P state machine to
 560                  * continue.
 561                  */
 562                 wpas_send_action_tx_status(
 563                         wpa_s, wpa_s->pending_action_dst,
 564                         wpabuf_head(wpa_s->pending_action_tx),
 565                         wpabuf_len(wpa_s->pending_action_tx), 0);
 566         }
 567 }
 568
 569
 570 void wpas_send_action_tx_status(struct wpa_supplicant *wpa_s, const u8 *dst,
 571                                 const u8 *data, size_t data_len, int ack)
 572 {
 573         if (wpa_s->global->p2p_disabled)
 574                 return;
 575
 576         if (wpa_s->pending_action_tx == NULL) {
 577                 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - no "
 578                            "pending operation");
 579                 return;
 580         }
 581
 582         if (os_memcmp(dst, wpa_s->pending_action_dst, ETH_ALEN) != 0) {
 583                 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - unknown "
 584                            "destination address");
 585                 return;
 586         }
 587
 588         wpabuf_free(wpa_s->pending_action_tx);
 589         wpa_s->pending_action_tx = NULL;
 590
 591         p2p_send_action_cb(wpa_s->global->p2p, wpa_s->pending_action_freq,
 592                            wpa_s->pending_action_dst,
 593                            wpa_s->pending_action_src,
 594                            wpa_s->pending_action_bssid,
 595                            ack);
 596
 597         if (wpa_s->pending_pd_before_join &&
 598             (os_memcmp(wpa_s->pending_action_dst, wpa_s->pending_join_dev_addr,
 599                        ETH_ALEN) == 0 ||
 600              os_memcmp(wpa_s->pending_action_dst,
 601                        wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
 602                 wpa_s->pending_pd_before_join = 0;
 603                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
 604                            "join-existing-group operation");
 605                 wpas_p2p_join_start(wpa_s);
 606         }
 607 }
 608
 609
 610 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
 611                             const u8 *src, const u8 *bssid, const u8 *buf,
 612                             size_t len, unsigned int wait_time)
 613 {
 614         struct wpa_supplicant *wpa_s = ctx;
 615
 616         wpa_printf(MSG_DEBUG, "P2P: Send action frame: freq=%d dst=" MACSTR
 617                    " src=" MACSTR " bssid=" MACSTR " len=%d",
 618                    freq, MAC2STR(dst), MAC2STR(src), MAC2STR(bssid),
 619                    (int) len);
 620
 621         if (wpa_s->pending_action_tx) {
 622                 wpa_printf(MSG_DEBUG, "P2P: Dropped pending Action frame TX "
 623                            "to " MACSTR, MAC2STR(wpa_s->pending_action_dst));
 624                 wpabuf_free(wpa_s->pending_action_tx);
 625         }
 626         wpa_s->pending_action_tx = wpabuf_alloc(len);
 627         if (wpa_s->pending_action_tx == NULL) {
 628                 wpa_printf(MSG_DEBUG, "P2P: Failed to allocate Action frame "
 629                            "TX buffer (len=%llu)", (unsigned long long) len);
 630                 return -1;
 631         }
 632         wpabuf_put_data(wpa_s->pending_action_tx, buf, len);
 633         os_memcpy(wpa_s->pending_action_src, src, ETH_ALEN);
 634         os_memcpy(wpa_s->pending_action_dst, dst, ETH_ALEN);
 635         os_memcpy(wpa_s->pending_action_bssid, bssid, ETH_ALEN);
 636         wpa_s->pending_action_freq = freq;
 637
 638         if (wpa_s->off_channel_freq == freq || freq == 0) {
 639                 wpa_printf(MSG_DEBUG, "P2P: Already on requested channel; "
 640                            "send Action frame immediately");
 641                 /* TODO: Would there ever be need to extend the current
 642                  * duration on the channel? */
 643                 wpa_s->pending_action_without_roc = 1;
 644                 eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
 645                 eloop_register_timeout(0, 0, wpas_send_action_cb, wpa_s, NULL);
 646                 return 0;
 647         }
 648         wpa_s->pending_action_without_roc = 0;
 649
 650         if (wpa_s->roc_waiting_drv_freq == freq) {
 651                 wpa_printf(MSG_DEBUG, "P2P: Already waiting for driver to get "
 652                            "to frequency %u MHz; continue waiting to send the "
 653                            "Action frame", freq);
 654                 return 0;
 655         }
 656
 657         wpa_printf(MSG_DEBUG, "P2P: Schedule Action frame to be transmitted "
 658                    "once the driver gets to the requested channel");
 659         if (wait_time > wpa_s->max_remain_on_chan)
 660                 wait_time = wpa_s->max_remain_on_chan;
 661         if (wpa_drv_remain_on_channel(wpa_s, freq, wait_time) < 0) {
 662                 wpa_printf(MSG_DEBUG, "P2P: Failed to request driver "
 663                            "to remain on channel (%u MHz) for Action "
 664                            "Frame TX", freq);
 665                 return -1;
 666         }
 667         wpa_s->roc_waiting_drv_freq = freq;
 668
 669         return 0;
 670 }
 671
 672
 673 static void wpas_send_action_done(void *ctx)
 674 {
 675         struct wpa_supplicant *wpa_s = ctx;
 676         wpa_printf(MSG_DEBUG, "P2P: Action frame sequence done notification");
 677         wpabuf_free(wpa_s->pending_action_tx);
 678         wpa_s->pending_action_tx = NULL;
 679         if (wpa_s->off_channel_freq) {
 680                 wpa_drv_cancel_remain_on_channel(wpa_s);
 681                 wpa_s->off_channel_freq = 0;
 682                 wpa_s->roc_waiting_drv_freq = 0;
 683         }
 684 }
 685
 686
 687 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
 688                                     struct p2p_go_neg_results *params)
 689 {
 690         if (wpa_s->go_params == NULL) {
 691                 wpa_s->go_params = os_malloc(sizeof(*params));
 692                 if (wpa_s->go_params == NULL)
 693                         return -1;
 694         }
 695         os_memcpy(wpa_s->go_params, params, sizeof(*params));
 696         return 0;
 697 }
 698
 699
 700 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
 701                                     struct p2p_go_neg_results *res)
 702 {
 703         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
 704                           res->ssid, res->ssid_len);
 705         wpa_supplicant_ap_deinit(wpa_s);
 706         wpas_copy_go_neg_results(wpa_s, res);
 707         if (res->wps_method == WPS_PBC)
 708                 wpas_wps_start_pbc(wpa_s, NULL /* res->peer_interface_addr */,
 709                                    1);
 710         else {
 711                 u16 dev_pw_id = DEV_PW_DEFAULT;
 712                 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
 713                         dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
 714                 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
 715                                    wpa_s->p2p_pin, 1, dev_pw_id);
 716         }
 717 }
 718
 719
 720 static void p2p_go_configured(void *ctx, void *data)
 721 {
 722         struct wpa_supplicant *wpa_s = ctx;
 723         struct p2p_go_neg_results *params = data;
 724         struct wpa_ssid *ssid;
 725
 726         ssid = wpa_s->current_ssid;
 727         if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
 728                 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
 729                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 730                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 731                         "go_dev_addr=" MACSTR "%s",
 732                         wpa_s->ifname,
 733                         wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
 734                         ssid->frequency,
 735                         params->passphrase ? params->passphrase : "",
 736                         MAC2STR(wpa_s->parent->own_addr),
 737                         params->persistent_group ? " [PERSISTENT]" : "");
 738                 if (params->persistent_group)
 739                         wpas_p2p_store_persistent_group(
 740                                 wpa_s->parent, ssid,
 741                                 wpa_s->parent->own_addr);
 742                 wpas_p2p_cross_connect_setup(wpa_s);
 743                 return;
 744         }
 745
 746         wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
 747         if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
 748                                               params->peer_interface_addr)) {
 749                 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
 750                            "filtering");
 751                 return;
 752         }
 753         if (params->wps_method == WPS_PBC)
 754                 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr);
 755         else if (wpa_s->p2p_pin[0])
 756                 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
 757                                           wpa_s->p2p_pin, NULL, 0);
 758         os_free(wpa_s->go_params);
 759         wpa_s->go_params = NULL;
 760 }
 761
 762
 763 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
 764                               struct p2p_go_neg_results *params,
 765                               int group_formation)
 766 {
 767         struct wpa_ssid *ssid;
 768
 769         if (wpas_copy_go_neg_results(wpa_s, params) < 0)
 770                 return;
 771
 772         ssid = wpa_config_add_network(wpa_s->conf);
 773         if (ssid == NULL)
 774                 return;
 775
 776         wpa_config_set_network_defaults(ssid);
 777         ssid->temporary = 1;
 778         ssid->p2p_group = 1;
 779         ssid->p2p_persistent_group = params->persistent_group;
 780         ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
 781                 WPAS_MODE_P2P_GO;
 782         ssid->frequency = params->freq;
 783         ssid->ssid = os_zalloc(params->ssid_len + 1);
 784         if (ssid->ssid) {
 785                 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
 786                 ssid->ssid_len = params->ssid_len;
 787         }
 788         ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 789         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 790         ssid->proto = WPA_PROTO_RSN;
 791         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 792         ssid->passphrase = os_strdup(params->passphrase);
 793
 794         wpa_s->ap_configured_cb = p2p_go_configured;
 795         wpa_s->ap_configured_cb_ctx = wpa_s;
 796         wpa_s->ap_configured_cb_data = wpa_s->go_params;
 797         wpa_s->connect_without_scan = 1;
 798         wpa_s->reassociate = 1;
 799         wpa_s->disconnected = 0;
 800         wpa_supplicant_req_scan(wpa_s, 0, 0);
 801 }
 802
 803
 804 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
 805                                   const struct wpa_supplicant *src)
 806 {
 807         struct wpa_config *d;
 808         const struct wpa_config *s;
 809
 810         d = dst->conf;
 811         s = src->conf;
 812
 813 #define C(n) if (s->n) d->n = os_strdup(s->n)
 814         C(device_name);
 815         C(manufacturer);
 816         C(model_name);
 817         C(model_number);
 818         C(serial_number);
 819         C(device_type);
 820         C(config_methods);
 821 #undef C
 822 }
 823
 824
 825 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
 826                                         enum wpa_driver_if_type type)
 827 {
 828         char ifname[120], force_ifname[120];
 829
 830         if (wpa_s->pending_interface_name[0]) {
 831                 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
 832                            "- skip creation of a new one");
 833                 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
 834                         wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
 835                                    "unknown?! ifname='%s'",
 836                                    wpa_s->pending_interface_name);
 837                         return -1;
 838                 }
 839                 return 0;
 840         }
 841
 842         os_snprintf(ifname, sizeof(ifname), "%s-p2p-%d", wpa_s->ifname,
 843                     wpa_s->p2p_group_idx);
 844         force_ifname[0] = '\0';
 845
 846         wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
 847                    ifname);
 848         wpa_s->p2p_group_idx++;
 849
 850         wpa_s->pending_interface_type = type;
 851         if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
 852                            wpa_s->pending_interface_addr) < 0) {
 853                 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
 854                            "interface");
 855                 return -1;
 856         }
 857
 858         if (force_ifname[0]) {
 859                 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
 860                            force_ifname);
 861                 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
 862                            sizeof(wpa_s->pending_interface_name));
 863         } else
 864                 os_strlcpy(wpa_s->pending_interface_name, ifname,
 865                            sizeof(wpa_s->pending_interface_name));
 866         wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
 867                    MACSTR, wpa_s->pending_interface_name,
 868                    MAC2STR(wpa_s->pending_interface_addr));
 869
 870         return 0;
 871 }
 872
 873
 874 static void wpas_p2p_remove_pending_group_interface(
 875         struct wpa_supplicant *wpa_s)
 876 {
 877         if (!wpa_s->pending_interface_name[0] ||
 878             is_zero_ether_addr(wpa_s->pending_interface_addr))
 879                 return; /* No pending virtual interface */
 880
 881         wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
 882                    wpa_s->pending_interface_name);
 883         wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
 884                           wpa_s->pending_interface_name);
 885         os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
 886         wpa_s->pending_interface_name[0] = '\0';
 887 }
 888
 889
 890 static struct wpa_supplicant *
 891 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
 892 {
 893         struct wpa_interface iface;
 894         struct wpa_supplicant *group_wpa_s;
 895
 896         if (!wpa_s->pending_interface_name[0]) {
 897                 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
 898                 return NULL;
 899         }
 900
 901         os_memset(&iface, 0, sizeof(iface));
 902         iface.ifname = wpa_s->pending_interface_name;
 903         iface.driver = wpa_s->driver->name;
 904         iface.ctrl_interface = wpa_s->conf->ctrl_interface;
 905         iface.driver_param = wpa_s->conf->driver_param;
 906         group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
 907         if (group_wpa_s == NULL) {
 908                 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
 909                            "wpa_supplicant interface");
 910                 return NULL;
 911         }
 912         wpa_s->pending_interface_name[0] = '\0';
 913         group_wpa_s->parent = wpa_s;
 914         group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
 915                 P2P_GROUP_INTERFACE_CLIENT;
 916         wpa_s->global->p2p_group_formation = group_wpa_s;
 917
 918         wpas_p2p_clone_config(group_wpa_s, wpa_s);
 919
 920         return group_wpa_s;
 921 }
 922
 923
 924 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
 925                                              void *timeout_ctx)
 926 {
 927         struct wpa_supplicant *wpa_s = eloop_ctx;
 928         wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
 929         if (wpa_s->global->p2p)
 930                 p2p_group_formation_failed(wpa_s->global->p2p);
 931         wpas_group_formation_completed(wpa_s, 0);
 932 }
 933
 934
 935 void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
 936 {
 937         struct wpa_supplicant *wpa_s = ctx;
 938
 939         if (wpa_s->off_channel_freq) {
 940                 wpa_drv_cancel_remain_on_channel(wpa_s);
 941                 wpa_s->off_channel_freq = 0;
 942                 wpa_s->roc_waiting_drv_freq = 0;
 943         }
 944
 945         if (res->status) {
 946                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
 947                         res->status);
 948                 wpas_p2p_remove_pending_group_interface(wpa_s);
 949                 return;
 950         }
 951
 952         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
 953
 954         if (wpa_s->create_p2p_iface) {
 955                 struct wpa_supplicant *group_wpa_s =
 956                         wpas_p2p_init_group_interface(wpa_s, res->role_go);
 957                 if (group_wpa_s == NULL) {
 958                         wpas_p2p_remove_pending_group_interface(wpa_s);
 959                         return;
 960                 }
 961                 if (group_wpa_s != wpa_s) {
 962                         os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
 963                                   sizeof(group_wpa_s->p2p_pin));
 964                         group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
 965                 }
 966                 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
 967                 wpa_s->pending_interface_name[0] = '\0';
 968                 group_wpa_s->p2p_in_provisioning = 1;
 969
 970                 if (res->role_go)
 971                         wpas_start_wps_go(group_wpa_s, res, 1);
 972                 else
 973                         wpas_start_wps_enrollee(group_wpa_s, res);
 974         } else {
 975                 wpa_s->p2p_in_provisioning = 1;
 976                 wpa_s->global->p2p_group_formation = wpa_s;
 977
 978                 if (res->role_go)
 979                         wpas_start_wps_go(wpa_s, res, 1);
 980                 else
 981                         wpas_start_wps_enrollee(ctx, res);
 982         }
 983
 984         wpa_s->p2p_long_listen = 0;
 985         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
 986
 987         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
 988         eloop_register_timeout(15 + res->peer_config_timeout / 100,
 989                                (res->peer_config_timeout % 100) * 10000,
 990                                wpas_p2p_group_formation_timeout, wpa_s, NULL);
 991 }
 992
 993
 994 void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
 995 {
 996         struct wpa_supplicant *wpa_s = ctx;
 997         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
 998                 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
 999 }
1000
1001
1002 void wpas_dev_found(void *ctx, const u8 *addr, const u8 *dev_addr,
1003                     const u8 *pri_dev_type, const char *dev_name,
1004                     u16 config_methods, u8 dev_capab, u8 group_capab)
1005 {
1006         struct wpa_supplicant *wpa_s = ctx;
1007         char devtype[WPS_DEV_TYPE_BUFSIZE];
1008         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1009                 " p2p_dev_addr=" MACSTR
1010                 " pri_dev_type=%s name='%s' config_methods=0x%x "
1011                 "dev_capab=0x%x group_capab=0x%x",
1012                 MAC2STR(addr), MAC2STR(dev_addr),
1013                 wps_dev_type_bin2str(pri_dev_type, devtype, sizeof(devtype)),
1014                 dev_name, config_methods, dev_capab, group_capab);
1015 }
1016
1017
1018 static int wpas_start_listen(void *ctx, unsigned int freq,
1019                              unsigned int duration,
1020                              const struct wpabuf *probe_resp_ie)
1021 {
1022         struct wpa_supplicant *wpa_s = ctx;
1023
1024         wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1025
1026         if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1027                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1028                            "report received Probe Request frames");
1029                 return -1;
1030         }
1031
1032         wpa_s->pending_listen_freq = freq;
1033         wpa_s->pending_listen_duration = duration;
1034
1035         if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1036                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1037                            "to remain on channel (%u MHz) for Listen "
1038                            "state", freq);
1039                 wpa_s->pending_listen_freq = 0;
1040                 return -1;
1041         }
1042         wpa_s->roc_waiting_drv_freq = freq;
1043
1044         return 0;
1045 }
1046
1047
1048 static void wpas_stop_listen(void *ctx)
1049 {
1050         struct wpa_supplicant *wpa_s = ctx;
1051         if (wpa_s->off_channel_freq) {
1052                 wpa_drv_cancel_remain_on_channel(wpa_s);
1053                 wpa_s->off_channel_freq = 0;
1054                 wpa_s->roc_waiting_drv_freq = 0;
1055         }
1056         wpa_drv_probe_req_report(wpa_s, 0);
1057 }
1058
1059
1060 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1061 {
1062         struct wpa_supplicant *wpa_s = ctx;
1063         return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf));
1064 }
1065
1066
1067 static struct p2p_srv_bonjour *
1068 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1069                              const struct wpabuf *query)
1070 {
1071         struct p2p_srv_bonjour *bsrv;
1072         size_t len;
1073
1074         len = wpabuf_len(query);
1075         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1076                          struct p2p_srv_bonjour, list) {
1077                 if (len == wpabuf_len(bsrv->query) &&
1078                     os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1079                               len) == 0)
1080                         return bsrv;
1081         }
1082         return NULL;
1083 }
1084
1085
1086 static struct p2p_srv_upnp *
1087 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1088                           const char *service)
1089 {
1090         struct p2p_srv_upnp *usrv;
1091
1092         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1093                          struct p2p_srv_upnp, list) {
1094                 if (version == usrv->version &&
1095                     os_strcmp(service, usrv->service) == 0)
1096                         return usrv;
1097         }
1098         return NULL;
1099 }
1100
1101
1102 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1103                                         u8 srv_trans_id)
1104 {
1105         u8 *len_pos;
1106
1107         if (wpabuf_tailroom(resp) < 5)
1108                 return;
1109
1110         /* Length (to be filled) */
1111         len_pos = wpabuf_put(resp, 2);
1112         wpabuf_put_u8(resp, srv_proto);
1113         wpabuf_put_u8(resp, srv_trans_id);
1114         /* Status Code */
1115         wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1116         /* Response Data: empty */
1117         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1118 }
1119
1120
1121 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1122                                 struct wpabuf *resp, u8 srv_trans_id)
1123 {
1124         struct p2p_srv_bonjour *bsrv;
1125         u8 *len_pos;
1126
1127         wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1128
1129         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1130                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1131                 return;
1132         }
1133
1134         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1135                          struct p2p_srv_bonjour, list) {
1136                 if (wpabuf_tailroom(resp) <
1137                     5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1138                         return;
1139                 /* Length (to be filled) */
1140                 len_pos = wpabuf_put(resp, 2);
1141                 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1142                 wpabuf_put_u8(resp, srv_trans_id);
1143                 /* Status Code */
1144                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1145                 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1146                                   wpabuf_head(bsrv->resp),
1147                                   wpabuf_len(bsrv->resp));
1148                 /* Response Data */
1149                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1150                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1151                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1152                              2);
1153         }
1154 }
1155
1156
1157 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1158                                 struct wpabuf *resp, u8 srv_trans_id,
1159                                 const u8 *query, size_t query_len)
1160 {
1161         struct p2p_srv_bonjour *bsrv;
1162         struct wpabuf buf;
1163         u8 *len_pos;
1164
1165         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1166                           query, query_len);
1167         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1168                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1169                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1170                                             srv_trans_id);
1171                 return;
1172         }
1173
1174         if (query_len == 0) {
1175                 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1176                 return;
1177         }
1178
1179         if (wpabuf_tailroom(resp) < 5)
1180                 return;
1181         /* Length (to be filled) */
1182         len_pos = wpabuf_put(resp, 2);
1183         wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1184         wpabuf_put_u8(resp, srv_trans_id);
1185
1186         wpabuf_set(&buf, query, query_len);
1187         bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1188         if (bsrv == NULL) {
1189                 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1190                            "available");
1191
1192                 /* Status Code */
1193                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1194                 /* Response Data: empty */
1195                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1196                              2);
1197                 return;
1198         }
1199
1200         /* Status Code */
1201         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1202         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1203                           wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1204
1205         if (wpabuf_tailroom(resp) >=
1206             wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1207                 /* Response Data */
1208                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1209                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1210         }
1211         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1212 }
1213
1214
1215 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1216                              struct wpabuf *resp, u8 srv_trans_id)
1217 {
1218         struct p2p_srv_upnp *usrv;
1219         u8 *len_pos;
1220
1221         wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1222
1223         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1224                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1225                 return;
1226         }
1227
1228         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1229                          struct p2p_srv_upnp, list) {
1230                 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1231                         return;
1232
1233                 /* Length (to be filled) */
1234                 len_pos = wpabuf_put(resp, 2);
1235                 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1236                 wpabuf_put_u8(resp, srv_trans_id);
1237
1238                 /* Status Code */
1239                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1240                 /* Response Data */
1241                 wpabuf_put_u8(resp, usrv->version);
1242                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1243                            usrv->service);
1244                 wpabuf_put_str(resp, usrv->service);
1245                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1246                              2);
1247         }
1248 }
1249
1250
1251 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1252                              struct wpabuf *resp, u8 srv_trans_id,
1253                              const u8 *query, size_t query_len)
1254 {
1255         struct p2p_srv_upnp *usrv;
1256         u8 *len_pos;
1257         u8 version;
1258         char *str;
1259         int count = 0;
1260
1261         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1262                           query, query_len);
1263
1264         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1265                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1266                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1267                                             srv_trans_id);
1268                 return;
1269         }
1270
1271         if (query_len == 0) {
1272                 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1273                 return;
1274         }
1275
1276         version = query[0];
1277         str = os_malloc(query_len);
1278         if (str == NULL)
1279                 return;
1280         os_memcpy(str, query + 1, query_len - 1);
1281         str[query_len - 1] = '\0';
1282
1283         if (wpabuf_tailroom(resp) < 5)
1284                 return;
1285
1286         /* Length (to be filled) */
1287         len_pos = wpabuf_put(resp, 2);
1288         wpabuf_put_u8(resp, P2P_SERV_UPNP);
1289         wpabuf_put_u8(resp, srv_trans_id);
1290
1291         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1292                          struct p2p_srv_upnp, list) {
1293                 if (version != usrv->version)
1294                         continue;
1295
1296                 if (os_strcmp(str, "ssdp:all") != 0 &&
1297                     os_strstr(usrv->service, str) == NULL)
1298                         continue;
1299
1300                 if (wpabuf_tailroom(resp) < 2)
1301                         break;
1302                 if (count == 0) {
1303                         /* Status Code */
1304                         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1305                         /* Response Data */
1306                         wpabuf_put_u8(resp, version);
1307                 } else
1308                         wpabuf_put_u8(resp, ',');
1309
1310                 count++;
1311
1312                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1313                            usrv->service);
1314                 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1315                         break;
1316                 wpabuf_put_str(resp, usrv->service);
1317         }
1318
1319         if (count == 0) {
1320                 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1321                            "available");
1322                 /* Status Code */
1323                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1324                 /* Response Data: empty */
1325         }
1326
1327         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1328 }
1329
1330
1331 void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1332                      u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1333 {
1334         struct wpa_supplicant *wpa_s = ctx;
1335         const u8 *pos = tlvs;
1336         const u8 *end = tlvs + tlvs_len;
1337         const u8 *tlv_end;
1338         u16 slen;
1339         struct wpabuf *resp;
1340         u8 srv_proto, srv_trans_id;
1341         size_t buf_len;
1342         char *buf;
1343
1344         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1345                     tlvs, tlvs_len);
1346         buf_len = 2 * tlvs_len + 1;
1347         buf = os_malloc(buf_len);
1348         if (buf) {
1349                 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1350                 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1351                              MACSTR " %u %u %s",
1352                              freq, MAC2STR(sa), dialog_token, update_indic,
1353                              buf);
1354                 os_free(buf);
1355         }
1356
1357         if (wpa_s->p2p_sd_over_ctrl_iface)
1358                 return; /* to be processed by an external program */
1359
1360         resp = wpabuf_alloc(10000);
1361         if (resp == NULL)
1362                 return;
1363
1364         while (pos + 1 < end) {
1365                 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1366                 slen = WPA_GET_LE16(pos);
1367                 pos += 2;
1368                 if (pos + slen > end || slen < 2) {
1369                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1370                                    "length");
1371                         wpabuf_free(resp);
1372                         return;
1373                 }
1374                 tlv_end = pos + slen;
1375
1376                 srv_proto = *pos++;
1377                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1378                            srv_proto);
1379                 srv_trans_id = *pos++;
1380                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1381                            srv_trans_id);
1382
1383                 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1384                             pos, tlv_end - pos);
1385
1386
1387                 if (wpa_s->force_long_sd) {
1388                         wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1389                                    "response");
1390                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1391                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1392                         goto done;
1393                 }
1394
1395                 switch (srv_proto) {
1396                 case P2P_SERV_ALL_SERVICES:
1397                         wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1398                                    "for all services");
1399                         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1400                             dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1401                                 wpa_printf(MSG_DEBUG, "P2P: No service "
1402                                            "discovery protocols available");
1403                                 wpas_sd_add_proto_not_avail(
1404                                         resp, P2P_SERV_ALL_SERVICES,
1405                                         srv_trans_id);
1406                                 break;
1407                         }
1408                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1409                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1410                         break;
1411                 case P2P_SERV_BONJOUR:
1412                         wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1413                                             pos, tlv_end - pos);
1414                         break;
1415                 case P2P_SERV_UPNP:
1416                         wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1417                                          pos, tlv_end - pos);
1418                         break;
1419                 default:
1420                         wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1421                                    "protocol %u", srv_proto);
1422                         wpas_sd_add_proto_not_avail(resp, srv_proto,
1423                                                     srv_trans_id);
1424                         break;
1425                 }
1426
1427                 pos = tlv_end;
1428         }
1429
1430 done:
1431         wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1432
1433         wpabuf_free(resp);
1434 }
1435
1436
1437 void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1438                       const u8 *tlvs, size_t tlvs_len)
1439 {
1440         struct wpa_supplicant *wpa_s = ctx;
1441         const u8 *pos = tlvs;
1442         const u8 *end = tlvs + tlvs_len;
1443         const u8 *tlv_end;
1444         u16 slen;
1445         size_t buf_len;
1446         char *buf;
1447
1448         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1449                     tlvs, tlvs_len);
1450         if (tlvs_len > 1500) {
1451                 /* TODO: better way for handling this */
1452                 wpa_msg_ctrl(wpa_s, MSG_INFO,
1453                              P2P_EVENT_SERV_DISC_RESP MACSTR
1454                              " %u <long response: %u bytes>",
1455                              MAC2STR(sa), update_indic,
1456                              (unsigned int) tlvs_len);
1457         } else {
1458                 buf_len = 2 * tlvs_len + 1;
1459                 buf = os_malloc(buf_len);
1460                 if (buf) {
1461                         wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1462                         wpa_msg_ctrl(wpa_s, MSG_INFO,
1463                                      P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1464                                      MAC2STR(sa), update_indic, buf);
1465                         os_free(buf);
1466                 }
1467         }
1468
1469         while (pos < end) {
1470                 u8 srv_proto, srv_trans_id, status;
1471
1472                 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1473                 slen = WPA_GET_LE16(pos);
1474                 pos += 2;
1475                 if (pos + slen > end || slen < 3) {
1476                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1477                                    "length");
1478                         return;
1479                 }
1480                 tlv_end = pos + slen;
1481
1482                 srv_proto = *pos++;
1483                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1484                            srv_proto);
1485                 srv_trans_id = *pos++;
1486                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1487                            srv_trans_id);
1488                 status = *pos++;
1489                 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1490                            status);
1491
1492                 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1493                             pos, tlv_end - pos);
1494
1495                 pos = tlv_end;
1496         }
1497 }
1498
1499
1500 void * wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1501                            const struct wpabuf *tlvs)
1502 {
1503         return p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1504 }
1505
1506
1507 void * wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1508                                 u8 version, const char *query)
1509 {
1510         struct wpabuf *tlvs;
1511         void *ret;
1512
1513         tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1514         if (tlvs == NULL)
1515                 return NULL;
1516         wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1517         wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1518         wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1519         wpabuf_put_u8(tlvs, version);
1520         wpabuf_put_str(tlvs, query);
1521         ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1522         wpabuf_free(tlvs);
1523         return ret;
1524 }
1525
1526
1527 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, void *req)
1528 {
1529         return p2p_sd_cancel_request(wpa_s->global->p2p, req);
1530 }
1531
1532
1533 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1534                           const u8 *dst, u8 dialog_token,
1535                           const struct wpabuf *resp_tlvs)
1536 {
1537         p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1538                         resp_tlvs);
1539 }
1540
1541
1542 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1543 {
1544         p2p_sd_service_update(wpa_s->global->p2p);
1545 }
1546
1547
1548 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1549 {
1550         dl_list_del(&bsrv->list);
1551         wpabuf_free(bsrv->query);
1552         wpabuf_free(bsrv->resp);
1553         os_free(bsrv);
1554 }
1555
1556
1557 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1558 {
1559         dl_list_del(&usrv->list);
1560         os_free(usrv->service);
1561         os_free(usrv);
1562 }
1563
1564
1565 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1566 {
1567         struct p2p_srv_bonjour *bsrv, *bn;
1568         struct p2p_srv_upnp *usrv, *un;
1569
1570         dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1571                               struct p2p_srv_bonjour, list)
1572                 wpas_p2p_srv_bonjour_free(bsrv);
1573
1574         dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1575                               struct p2p_srv_upnp, list)
1576                 wpas_p2p_srv_upnp_free(usrv);
1577
1578         wpas_p2p_sd_service_update(wpa_s);
1579 }
1580
1581
1582 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1583                                  struct wpabuf *query, struct wpabuf *resp)
1584 {
1585         struct p2p_srv_bonjour *bsrv;
1586
1587         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1588         if (bsrv) {
1589                 wpabuf_free(query);
1590                 wpabuf_free(bsrv->resp);
1591                 bsrv->resp = resp;
1592                 return 0;
1593         }
1594
1595         bsrv = os_zalloc(sizeof(*bsrv));
1596         if (bsrv == NULL)
1597                 return -1;
1598         bsrv->query = query;
1599         bsrv->resp = resp;
1600         dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1601
1602         wpas_p2p_sd_service_update(wpa_s);
1603         return 0;
1604 }
1605
1606
1607 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1608                                  const struct wpabuf *query)
1609 {
1610         struct p2p_srv_bonjour *bsrv;
1611
1612         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1613         if (bsrv == NULL)
1614                 return -1;
1615         wpas_p2p_srv_bonjour_free(bsrv);
1616         wpas_p2p_sd_service_update(wpa_s);
1617         return 0;
1618 }
1619
1620
1621 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1622                               const char *service)
1623 {
1624         struct p2p_srv_upnp *usrv;
1625
1626         if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1627                 return 0; /* Already listed */
1628         usrv = os_zalloc(sizeof(*usrv));
1629         if (usrv == NULL)
1630                 return -1;
1631         usrv->version = version;
1632         usrv->service = os_strdup(service);
1633         if (usrv->service == NULL) {
1634                 os_free(usrv);
1635                 return -1;
1636         }
1637         dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1638
1639         wpas_p2p_sd_service_update(wpa_s);
1640         return 0;
1641 }
1642
1643
1644 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1645                               const char *service)
1646 {
1647         struct p2p_srv_upnp *usrv;
1648
1649         usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1650         if (usrv == NULL)
1651                 return -1;
1652         wpas_p2p_srv_upnp_free(usrv);
1653         wpas_p2p_sd_service_update(wpa_s);
1654         return 0;
1655 }
1656
1657
1658 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
1659                                          const u8 *peer, const char *params)
1660 {
1661         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
1662                 MAC2STR(peer), wps_generate_pin(), params);
1663 }
1664
1665
1666 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1667                                         const u8 *peer, const char *params)
1668 {
1669         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1670                 MAC2STR(peer), params);
1671 }
1672
1673
1674 void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1675                         const u8 *dev_addr, const u8 *pri_dev_type,
1676                         const char *dev_name, u16 supp_config_methods,
1677                         u8 dev_capab, u8 group_capab)
1678 {
1679         struct wpa_supplicant *wpa_s = ctx;
1680         char devtype[WPS_DEV_TYPE_BUFSIZE];
1681         char params[200];
1682         u8 empty_dev_type[8];
1683
1684         if (pri_dev_type == NULL) {
1685                 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1686                 pri_dev_type = empty_dev_type;
1687         }
1688         os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1689                     " pri_dev_type=%s name='%s' config_methods=0x%x "
1690                     "dev_capab=0x%x group_capab=0x%x",
1691                     MAC2STR(dev_addr),
1692                     wps_dev_type_bin2str(pri_dev_type, devtype,
1693                                          sizeof(devtype)),
1694                     dev_name, supp_config_methods, dev_capab, group_capab);
1695         params[sizeof(params) - 1] = '\0';
1696
1697         if (config_methods & WPS_CONFIG_DISPLAY)
1698                 wpas_prov_disc_local_display(wpa_s, peer, params);
1699         else if (config_methods & WPS_CONFIG_KEYPAD)
1700                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1701         else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1702                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1703                         "%s", MAC2STR(peer), params);
1704 }
1705
1706
1707 void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1708 {
1709         struct wpa_supplicant *wpa_s = ctx;
1710         if (config_methods & WPS_CONFIG_DISPLAY)
1711                 wpas_prov_disc_local_keypad(wpa_s, peer, "");
1712         else if (config_methods & WPS_CONFIG_KEYPAD)
1713                 wpas_prov_disc_local_display(wpa_s, peer, "");
1714         else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1715                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1716                         MAC2STR(peer));
1717
1718         if (wpa_s->pending_pd_before_join &&
1719             (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1720              os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
1721                 wpa_s->pending_pd_before_join = 0;
1722                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
1723                            "join-existing-group operation");
1724                 wpas_p2p_join_start(wpa_s);
1725         }
1726 }
1727
1728
1729 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1730                                   const u8 *go_dev_addr, const u8 *ssid,
1731                                   size_t ssid_len, int *go, u8 *group_bssid,
1732                                   int *force_freq, int persistent_group)
1733 {
1734         struct wpa_supplicant *wpa_s = ctx;
1735         struct wpa_ssid *s;
1736         u8 cur_bssid[ETH_ALEN];
1737         int res;
1738
1739         if (!persistent_group) {
1740                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1741                            " to join an active group", MAC2STR(sa));
1742                 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
1743                     (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
1744                      == 0 ||
1745                      os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
1746                         wpa_printf(MSG_DEBUG, "P2P: Accept previously "
1747                                    "authorized invitation");
1748                         goto accept_inv;
1749                 }
1750                 /*
1751                  * Do not accept the invitation automatically; notify user and
1752                  * request approval.
1753                  */
1754                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1755         }
1756
1757         if (!wpa_s->conf->persistent_reconnect)
1758                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1759
1760         for (s = wpa_s->conf->ssid; s; s = s->next) {
1761                 if (s->disabled == 2 &&
1762                     os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
1763                     s->ssid_len == ssid_len &&
1764                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
1765                         break;
1766         }
1767
1768         if (!s) {
1769                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1770                            " requested reinvocation of an unknown group",
1771                            MAC2STR(sa));
1772                 return P2P_SC_FAIL_UNKNOWN_GROUP;
1773         }
1774
1775         if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
1776                 *go = 1;
1777                 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1778                         wpa_printf(MSG_DEBUG, "P2P: The only available "
1779                                    "interface is already in use - reject "
1780                                    "invitation");
1781                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1782                 }
1783                 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
1784         } else if (s->mode == WPAS_MODE_P2P_GO) {
1785                 *go = 1;
1786                 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
1787                 {
1788                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
1789                                    "interface address for the group");
1790                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1791                 }
1792                 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
1793                           ETH_ALEN);
1794         }
1795
1796 accept_inv:
1797         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
1798             wpa_s->assoc_freq) {
1799                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1800                            "the channel we are already using");
1801                 *force_freq = wpa_s->assoc_freq;
1802         }
1803
1804         res = wpa_drv_shared_freq(wpa_s);
1805         if (res > 0) {
1806                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1807                            "with the channel we are already using on a "
1808                            "shared interface");
1809                 *force_freq = res;
1810         }
1811
1812         return P2P_SC_SUCCESS;
1813 }
1814
1815
1816 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
1817                                      const u8 *ssid, size_t ssid_len,
1818                                      const u8 *go_dev_addr, u8 status,
1819                                      int op_freq)
1820 {
1821         struct wpa_supplicant *wpa_s = ctx;
1822         struct wpa_ssid *s;
1823
1824         for (s = wpa_s->conf->ssid; s; s = s->next) {
1825                 if (s->disabled == 2 &&
1826                     s->ssid_len == ssid_len &&
1827                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
1828                         break;
1829         }
1830
1831         if (status == P2P_SC_SUCCESS) {
1832                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1833                            " was accepted; op_freq=%d MHz",
1834                            MAC2STR(sa), op_freq);
1835                 if (s) {
1836                         wpas_p2p_group_add_persistent(
1837                                 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
1838                 } else if (bssid) {
1839                         wpas_p2p_join(wpa_s, bssid, go_dev_addr,
1840                                       wpa_s->p2p_wps_method);
1841                 }
1842                 return;
1843         }
1844
1845         if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
1846                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1847                            " was rejected (status %u)", MAC2STR(sa), status);
1848                 return;
1849         }
1850
1851         if (!s) {
1852                 if (bssid) {
1853                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1854                                 "sa=" MACSTR " go_dev_addr=" MACSTR
1855                                 " bssid=" MACSTR " unknown-network",
1856                                 MAC2STR(sa), MAC2STR(go_dev_addr),
1857                                 MAC2STR(bssid));
1858                 } else {
1859                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1860                                 "sa=" MACSTR " go_dev_addr=" MACSTR
1861                                 " unknown-network",
1862                                 MAC2STR(sa), MAC2STR(go_dev_addr));
1863                 }
1864                 return;
1865         }
1866
1867         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
1868                 " persistent=%d", MAC2STR(sa), s->id);
1869 }
1870
1871
1872 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
1873 {
1874         struct wpa_supplicant *wpa_s = ctx;
1875         struct wpa_ssid *ssid;
1876
1877         if (bssid) {
1878                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1879                         "status=%d " MACSTR,
1880                         status, MAC2STR(bssid));
1881         } else {
1882                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1883                         "status=%d ", status);
1884         }
1885
1886         if (wpa_s->pending_invite_ssid_id == -1)
1887                 return; /* Invitation to active group */
1888
1889         if (status != P2P_SC_SUCCESS) {
1890                 wpas_p2p_remove_pending_group_interface(wpa_s);
1891                 return;
1892         }
1893
1894         ssid = wpa_config_get_network(wpa_s->conf,
1895                                       wpa_s->pending_invite_ssid_id);
1896         if (ssid == NULL) {
1897                 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
1898                            "data matching with invitation");
1899                 return;
1900         }
1901
1902         wpas_p2p_group_add_persistent(wpa_s, ssid,
1903                                       ssid->mode == WPAS_MODE_P2P_GO, 0);
1904 }
1905
1906
1907 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
1908                                    struct p2p_config *p2p)
1909 {
1910         struct hostapd_hw_modes *modes;
1911         u16 num_modes, flags;
1912         int i, cla;
1913         int band24 = 0, band5_low = 0, band5_high = 0;
1914
1915         /* TODO: more detailed selection of channels within reg_class based on
1916          * driver capabilities */
1917
1918         modes = wpa_drv_get_hw_feature_data(wpa_s, &num_modes, &flags);
1919         if (modes == NULL) {
1920                 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
1921                            "of all supported channels; assume dualband "
1922                            "support");
1923                 band24 = band5_low = band5_high = 1;
1924         } else {
1925                 for (i = 0; i < num_modes; i++) {
1926                         struct hostapd_hw_modes *mode;
1927                         mode = &modes[i];
1928                         if (mode->mode == HOSTAPD_MODE_IEEE80211G) {
1929                                 band24 = 1;
1930                         } else if (mode->mode == HOSTAPD_MODE_IEEE80211A) {
1931                                 int j;
1932                                 for (j = 0; j < mode->num_channels; j++) {
1933                                         struct hostapd_channel_data *ch;
1934                                         ch = &mode->channels[j];
1935                                         if (ch->chan == 36)
1936                                                 band5_low = 1;
1937                                         else if (ch->chan == 157)
1938                                                 band5_high = 1;
1939                                 }
1940                         }
1941                 }
1942         }
1943
1944         cla = 0;
1945
1946         if (band24) {
1947                 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for "
1948                            "2.4 GHz band");
1949
1950                 /* Operating class 81 - 2.4 GHz band channels 1..13 */
1951                 p2p->channels.reg_class[cla].reg_class = 81;
1952 #if 0
1953                 p2p->channels.reg_class[cla].channels = 13;
1954                 for (i = 0; i < 13; i++)
1955                         p2p->channels.reg_class[cla].channel[i] = i + 1;
1956 #else
1957                 p2p->channels.reg_class[cla].channels = 11;
1958                 for (i = 0; i < 11; i++)
1959                         p2p->channels.reg_class[cla].channel[i] = i + 1;
1960 #endif
1961                 cla++;
1962
1963 #if 0
1964                 /* Operating class 82 - 2.4 GHz band channel 14 */
1965                 p2p->channels.reg_class[cla].reg_class = 82;
1966                 p2p->channels.reg_class[cla].channels = 1;
1967                 p2p->channels.reg_class[cla].channel[0] = 14;
1968                 cla++;
1969 #endif
1970
1971 #if 0
1972                 /* Operating class 83 - 2.4 GHz band channels 1..9; 40 MHz */
1973                 p2p->channels.reg_class[cla].reg_class = 83;
1974                 p2p->channels.reg_class[cla].channels = 9;
1975                 for (i = 0; i < 9; i++)
1976                         p2p->channels.reg_class[cla].channel[i] = i + 1;
1977                 cla++;
1978
1979                 /* Operating class 84 - 2.4 GHz band channels 5..13; 40 MHz */
1980                 p2p->channels.reg_class[cla].reg_class = 84;
1981                 p2p->channels.reg_class[cla].channels = 9;
1982                 for (i = 0; i < 9; i++)
1983                         p2p->channels.reg_class[cla].channel[i] = i + 5;
1984                 cla++;
1985 #endif
1986         }
1987
1988         if (band5_low) {
1989                 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for "
1990                            "lower 5 GHz band");
1991
1992                 /* Operating class 115 - 5 GHz, channels 36-48 */
1993                 p2p->channels.reg_class[cla].reg_class = 115;
1994                 p2p->channels.reg_class[cla].channels = 4;
1995                 p2p->channels.reg_class[cla].channel[0] = 36;
1996                 p2p->channels.reg_class[cla].channel[1] = 40;
1997                 p2p->channels.reg_class[cla].channel[2] = 44;
1998                 p2p->channels.reg_class[cla].channel[3] = 48;
1999                 cla++;
2000
2001 #if 0
2002                 /* Operating class 116 - 5 GHz, channels 36,44; 40 MHz */
2003                 p2p->channels.reg_class[cla].reg_class = 116;
2004                 p2p->channels.reg_class[cla].channels = 2;
2005                 p2p->channels.reg_class[cla].channel[0] = 36;
2006                 p2p->channels.reg_class[cla].channel[1] = 44;
2007                 cla++;
2008
2009                 /* Operating class 117 - 5 GHz, channels 40,48; 40 MHz */
2010                 p2p->channels.reg_class[cla].reg_class = 117;
2011                 p2p->channels.reg_class[cla].channels = 2;
2012                 p2p->channels.reg_class[cla].channel[0] = 40;
2013                 p2p->channels.reg_class[cla].channel[1] = 48;
2014                 cla++;
2015 #endif
2016         }
2017
2018         if (band5_high) {
2019                 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for "
2020                            "higher 5 GHz band");
2021
2022                 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2023                 p2p->channels.reg_class[cla].reg_class = 124;
2024                 p2p->channels.reg_class[cla].channels = 4;
2025                 p2p->channels.reg_class[cla].channel[0] = 149;
2026                 p2p->channels.reg_class[cla].channel[1] = 153;
2027                 p2p->channels.reg_class[cla].channel[2] = 157;
2028                 p2p->channels.reg_class[cla].channel[3] = 161;
2029                 cla++;
2030
2031 #if 0
2032                 /* Operating class 126 - 5 GHz, channels 149,157; 40 MHz */
2033                 p2p->channels.reg_class[cla].reg_class = 126;
2034                 p2p->channels.reg_class[cla].channels = 2;
2035                 p2p->channels.reg_class[cla].channel[0] = 149;
2036                 p2p->channels.reg_class[cla].channel[1] = 157;
2037                 cla++;
2038
2039                 /* Operating class 127 - 5 GHz, channels 153,161; 40 MHz */
2040                 p2p->channels.reg_class[cla].reg_class = 127;
2041                 p2p->channels.reg_class[cla].channels = 2;
2042                 p2p->channels.reg_class[cla].channel[0] = 153;
2043                 p2p->channels.reg_class[cla].channel[1] = 161;
2044                 cla++;
2045 #endif
2046         }
2047
2048         p2p->channels.reg_classes = cla;
2049
2050         if (modes)
2051                 ieee80211_sta_free_hw_features(modes, num_modes);
2052
2053         return 0;
2054 }
2055
2056
2057 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2058                         size_t buf_len)
2059 {
2060         struct wpa_supplicant *wpa_s = ctx;
2061
2062         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2063                 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2064                         break;
2065         }
2066         if (wpa_s == NULL)
2067                 return -1;
2068
2069         return wpa_drv_get_noa(wpa_s, buf, buf_len);
2070 }
2071
2072
2073 /**
2074  * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2075  * @global: Pointer to global data from wpa_supplicant_init()
2076  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2077  * Returns: 0 on success, -1 on failure
2078  */
2079 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2080 {
2081         struct p2p_config p2p;
2082         unsigned int r;
2083         int i;
2084
2085         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2086                 return 0;
2087
2088 #ifdef CONFIG_CLIENT_MLME
2089         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)) {
2090                 wpa_s->mlme.public_action_cb = p2p_rx_action_mlme;
2091                 wpa_s->mlme.public_action_cb_ctx = wpa_s;
2092         }
2093 #endif /* CONFIG_CLIENT_MLME */
2094
2095         if (wpa_drv_disable_11b_rates(wpa_s, 1) < 0) {
2096                 wpa_printf(MSG_DEBUG, "P2P: Failed to disable 11b rates");
2097                 /* Continue anyway; this is not really a fatal error */
2098         }
2099
2100         if (global->p2p)
2101                 return 0;
2102
2103         os_memset(&p2p, 0, sizeof(p2p));
2104         p2p.msg_ctx = wpa_s;
2105         p2p.cb_ctx = wpa_s;
2106         p2p.p2p_scan = wpas_p2p_scan;
2107         p2p.send_action = wpas_send_action;
2108         p2p.send_action_done = wpas_send_action_done;
2109         p2p.go_neg_completed = wpas_go_neg_completed;
2110         p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2111         p2p.dev_found = wpas_dev_found;
2112         p2p.start_listen = wpas_start_listen;
2113         p2p.stop_listen = wpas_stop_listen;
2114         p2p.send_probe_resp = wpas_send_probe_resp;
2115         p2p.sd_request = wpas_sd_request;
2116         p2p.sd_response = wpas_sd_response;
2117         p2p.prov_disc_req = wpas_prov_disc_req;
2118         p2p.prov_disc_resp = wpas_prov_disc_resp;
2119         p2p.invitation_process = wpas_invitation_process;
2120         p2p.invitation_received = wpas_invitation_received;
2121         p2p.invitation_result = wpas_invitation_result;
2122         p2p.get_noa = wpas_get_noa;
2123
2124         os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2125         os_memcpy(p2p.dev_addr, wpa_s->own_addr, ETH_ALEN);
2126         p2p.dev_name = wpa_s->conf->device_name;
2127
2128         if (wpa_s->conf->p2p_listen_reg_class &&
2129             wpa_s->conf->p2p_listen_channel) {
2130                 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2131                 p2p.channel = wpa_s->conf->p2p_listen_channel;
2132         } else {
2133                 p2p.reg_class = 81;
2134                 /*
2135                  * Pick one of the social channels randomly as the listen
2136                  * channel.
2137                  */
2138                 os_get_random((u8 *) &r, sizeof(r));
2139                 p2p.channel = 1 + (r % 3) * 5;
2140         }
2141
2142         if (wpa_s->conf->p2p_oper_reg_class &&
2143             wpa_s->conf->p2p_oper_channel) {
2144                 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2145                 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2146         } else {
2147                 p2p.op_reg_class = 81;
2148                 /*
2149                  * For initial tests, pick the operation channel randomly.
2150                  * TODO: Use scan results (etc.) to select the best channel.
2151                  */
2152                 p2p.op_channel = 1 + r % 11;
2153         }
2154         wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d  "
2155                    "Own preferred operation channel: %d",
2156                    p2p.channel, p2p.op_channel);
2157         if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2158                 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2159                 p2p.country[2] = 0x04;
2160         } else
2161                 os_memcpy(p2p.country, "US\x04", 3);
2162
2163         if (wpas_p2p_setup_channels(wpa_s, &p2p)) {
2164                 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2165                            "channel list");
2166                 return -1;
2167         }
2168
2169         if (wpa_s->conf->device_type &&
2170             wps_dev_type_str2bin(wpa_s->conf->device_type, p2p.pri_dev_type) <
2171             0) {
2172                 wpa_printf(MSG_ERROR, "P2P: Invalid device_type");
2173                 return -1;
2174         }
2175
2176         for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
2177                 if (wpa_s->conf->sec_device_type[i] == NULL)
2178                         continue;
2179                 if (wps_dev_type_str2bin(
2180                             wpa_s->conf->sec_device_type[i],
2181                             p2p.sec_dev_type[p2p.num_sec_dev_types]) < 0) {
2182                         wpa_printf(MSG_ERROR, "P2P: Invalid sec_device_type");
2183                         return -1;
2184                 }
2185                 p2p.num_sec_dev_types++;
2186                 if (p2p.num_sec_dev_types == P2P_SEC_DEVICE_TYPES)
2187                         break;
2188         }
2189
2190         p2p.concurrent_operations = !!(wpa_s->drv_flags &
2191                                        WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2192
2193         p2p.max_peers = wpa_s->max_stations ? wpa_s->max_stations : 100;
2194
2195         if (wpa_s->conf->p2p_ssid_postfix) {
2196                 p2p.ssid_postfix_len =
2197                         os_strlen(wpa_s->conf->p2p_ssid_postfix);
2198                 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2199                         p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2200                 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2201                           p2p.ssid_postfix_len);
2202         }
2203
2204         p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2205
2206         global->p2p = p2p_init(&p2p);
2207         if (global->p2p == NULL)
2208                 return -1;
2209
2210         return 0;
2211 }
2212
2213
2214 /**
2215  * wpas_p2p_deinit - Deinitialize per-interface P2P data
2216  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2217  *
2218  * This function deinitialize per-interface P2P data.
2219  */
2220 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2221 {
2222         if (wpa_s->driver && wpa_s->drv_priv)
2223                 wpa_drv_probe_req_report(wpa_s, 0);
2224         os_free(wpa_s->go_params);
2225         wpa_s->go_params = NULL;
2226         wpabuf_free(wpa_s->pending_action_tx);
2227         wpa_s->pending_action_tx = NULL;
2228         eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
2229         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2230         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2231         wpa_s->p2p_long_listen = 0;
2232         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2233         wpas_p2p_remove_pending_group_interface(wpa_s);
2234
2235         /* TODO: remove group interface from the driver if this wpa_s instance
2236          * is on top of a P2P group interface */
2237 }
2238
2239
2240 /**
2241  * wpas_p2p_deinit_global - Deinitialize global P2P module
2242  * @global: Pointer to global data from wpa_supplicant_init()
2243  *
2244  * This function deinitializes the global (per device) P2P module.
2245  */
2246 void wpas_p2p_deinit_global(struct wpa_global *global)
2247 {
2248         struct wpa_supplicant *wpa_s, *tmp;
2249         char *ifname;
2250
2251         if (global->p2p == NULL)
2252                 return;
2253
2254         /* Remove remaining P2P group interfaces */
2255         wpa_s = global->ifaces;
2256         if (wpa_s)
2257                 wpas_p2p_service_flush(wpa_s);
2258         while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2259                 wpa_s = wpa_s->next;
2260         while (wpa_s) {
2261                 enum wpa_driver_if_type type;
2262                 tmp = global->ifaces;
2263                 while (tmp &&
2264                        (tmp == wpa_s ||
2265                         tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2266                         tmp = tmp->next;
2267                 }
2268                 if (tmp == NULL)
2269                         break;
2270                 ifname = os_strdup(tmp->ifname);
2271                 type = wpas_p2p_if_type(tmp->p2p_group_interface);
2272                 wpa_supplicant_remove_iface(global, tmp);
2273                 if (ifname)
2274                         wpa_drv_if_remove(wpa_s, type, ifname);
2275                 os_free(ifname);
2276         }
2277
2278         /*
2279          * Deinit GO data on any possibly remaining interface (if main
2280          * interface is used as GO).
2281          */
2282         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2283                 if (wpa_s->ap_iface)
2284                         wpas_p2p_group_deinit(wpa_s);
2285         }
2286
2287         p2p_deinit(global->p2p);
2288         global->p2p = NULL;
2289 }
2290
2291
2292 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2293 {
2294         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
2295                 return 1; /* P2P group requires a new interface in every case
2296                            */
2297         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2298                 return 0; /* driver does not support concurrent operations */
2299         if (wpa_s->global->ifaces->next)
2300                 return 1; /* more that one interface already in use */
2301         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2302                 return 1; /* this interface is already in use */
2303         return 0;
2304 }
2305
2306
2307 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2308                                  const u8 *peer_addr,
2309                                  enum p2p_wps_method wps_method,
2310                                  int go_intent, const u8 *own_interface_addr,
2311                                  unsigned int force_freq, int persistent_group)
2312 {
2313         return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2314                            go_intent, own_interface_addr, force_freq,
2315                            persistent_group);
2316 }
2317
2318
2319 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2320                                 const u8 *peer_addr,
2321                                 enum p2p_wps_method wps_method,
2322                                 int go_intent, const u8 *own_interface_addr,
2323                                 unsigned int force_freq, int persistent_group)
2324 {
2325         return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2326                              go_intent, own_interface_addr, force_freq,
2327                              persistent_group);
2328 }
2329
2330
2331 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2332                                    struct wpa_scan_results *scan_res)
2333 {
2334         struct wpa_bss *bss;
2335         int freq;
2336
2337         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2338
2339         if (wpa_s->global->p2p_disabled)
2340                 return;
2341
2342         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2343                    scan_res ? (int) scan_res->num : -1);
2344
2345         if (scan_res)
2346                 wpas_p2p_scan_res_handler(wpa_s, scan_res);
2347
2348         freq = p2p_get_oper_freq(wpa_s->global->p2p,
2349                                  wpa_s->pending_join_iface_addr);
2350         if (freq >= 0) {
2351                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2352                            "from P2P peer table: %d MHz", freq);
2353         }
2354         bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
2355         if (bss) {
2356                 freq = bss->freq;
2357                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2358                            "from BSS table: %d MHz", freq);
2359         }
2360         if (freq > 0) {
2361                 u16 method;
2362
2363                 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2364                            "prior to joining an existing group (GO " MACSTR
2365                            " freq=%u MHz)",
2366                            MAC2STR(wpa_s->pending_join_dev_addr), freq);
2367                 wpa_s->pending_pd_before_join = 1;
2368
2369                 switch (wpa_s->pending_join_wps_method) {
2370                 case WPS_PIN_LABEL:
2371                 case WPS_PIN_DISPLAY:
2372                         method = WPS_CONFIG_KEYPAD;
2373                         break;
2374                 case WPS_PIN_KEYPAD:
2375                         method = WPS_CONFIG_DISPLAY;
2376                         break;
2377                 case WPS_PBC:
2378                         method = WPS_CONFIG_PUSHBUTTON;
2379                         break;
2380                 default:
2381                         method = 0;
2382                         break;
2383                 }
2384
2385                 if (p2p_prov_disc_req(wpa_s->global->p2p,
2386                                       wpa_s->pending_join_dev_addr, method, 1)
2387                     < 0) {
2388                         wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2389                                    "Discovery Request before joining an "
2390                                    "existing group");
2391                         wpa_s->pending_pd_before_join = 0;
2392                         goto start;
2393                 }
2394
2395                 /*
2396                  * Actual join operation will be started from the Action frame
2397                  * TX status callback.
2398                  */
2399                 return;
2400         }
2401
2402         wpa_printf(MSG_DEBUG, "P2P: Target BSS/GO not yet in BSS table - "
2403                    "cannot send Provision Discovery Request");
2404
2405 start:
2406         /* Start join operation immediately */
2407         wpas_p2p_join_start(wpa_s);
2408 }
2409
2410
2411 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2412 {
2413         struct wpa_supplicant *wpa_s = eloop_ctx;
2414         int ret;
2415         struct wpa_driver_scan_params params;
2416         struct wpabuf *wps_ie, *ies;
2417
2418         os_memset(&params, 0, sizeof(params));
2419
2420         /* P2P Wildcard SSID */
2421         params.num_ssids = 1;
2422         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2423         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2424
2425         wpa_s->wps->dev.p2p = 1;
2426         wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
2427                                         WPS_REQ_ENROLLEE);
2428         if (wps_ie == NULL) {
2429                 wpas_p2p_scan_res_join(wpa_s, NULL);
2430                 return;
2431         }
2432
2433         ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
2434         if (ies == NULL) {
2435                 wpabuf_free(wps_ie);
2436                 wpas_p2p_scan_res_join(wpa_s, NULL);
2437                 return;
2438         }
2439         wpabuf_put_buf(ies, wps_ie);
2440         wpabuf_free(wps_ie);
2441
2442         p2p_scan_ie(wpa_s->global->p2p, ies);
2443
2444         params.extra_ies = wpabuf_head(ies);
2445         params.extra_ies_len = wpabuf_len(ies);
2446
2447         /*
2448          * Run a scan to update BSS table and start Provision Discovery once
2449          * the new scan results become available.
2450          */
2451         wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
2452         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
2453                 ret = ieee80211_sta_req_scan(wpa_s, &params);
2454         else
2455                 ret = wpa_drv_scan(wpa_s, &params);
2456
2457         wpabuf_free(ies);
2458
2459         if (ret) {
2460                 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2461                            "try again later");
2462                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2463                 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2464         }
2465 }
2466
2467
2468 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2469                          const u8 *dev_addr, enum p2p_wps_method wps_method)
2470 {
2471         wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2472                    MACSTR " dev " MACSTR ")",
2473                    MAC2STR(iface_addr), MAC2STR(dev_addr));
2474
2475         os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2476         os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2477         wpa_s->pending_join_wps_method = wps_method;
2478
2479         /* Make sure we are not running find during connection establishment */
2480         wpas_p2p_stop_find(wpa_s);
2481
2482         wpas_p2p_join_scan(wpa_s, NULL);
2483         return 0;
2484 }
2485
2486
2487 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2488 {
2489         struct wpa_supplicant *group;
2490         struct p2p_go_neg_results res;
2491
2492         group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2493         if (group == NULL)
2494                 return -1;
2495         if (group != wpa_s) {
2496                 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2497                           sizeof(group->p2p_pin));
2498                 group->p2p_wps_method = wpa_s->p2p_wps_method;
2499         }
2500
2501         group->p2p_in_provisioning = 1;
2502
2503         os_memset(&res, 0, sizeof(res));
2504         os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2505                   ETH_ALEN);
2506         res.wps_method = wpa_s->pending_join_wps_method;
2507         wpas_start_wps_enrollee(group, &res);
2508
2509         /*
2510          * Allow a longer timeout for join-a-running-group than normal 15
2511          * second group formation timeout since the GO may not have authorized
2512          * our connection yet.
2513          */
2514         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2515         eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
2516                                wpa_s, NULL);
2517
2518         return 0;
2519 }
2520
2521
2522 /**
2523  * wpas_p2p_connect - Request P2P Group Formation to be started
2524  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2525  * @peer_addr: Address of the peer P2P Device
2526  * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2527  * @persistent_group: Whether to create a persistent group
2528  * @join: Whether to join an existing group (as a client) instead of starting
2529  *      Group Owner negotiation; @peer_addr is BSSID in that case
2530  * @auth: Whether to only authorize the connection instead of doing that and
2531  *      initiating Group Owner negotiation
2532  * @go_intent: GO Intent or -1 to use default
2533  * @freq: Frequency for the group or 0 for auto-selection
2534  * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on failure
2535  */
2536 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2537                      const char *pin, enum p2p_wps_method wps_method,
2538                      int persistent_group, int join, int auth, int go_intent,
2539                      int freq)
2540 {
2541         int force_freq = 0;
2542         u8 bssid[ETH_ALEN];
2543         int ret = 0;
2544         enum wpa_driver_if_type iftype;
2545
2546         if (go_intent < 0)
2547                 go_intent = wpa_s->conf->p2p_go_intent;
2548
2549         if (!auth)
2550                 wpa_s->p2p_long_listen = 0;
2551
2552         wpa_s->p2p_wps_method = wps_method;
2553
2554         if (pin)
2555                 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2556         else if (wps_method == WPS_PIN_DISPLAY) {
2557                 ret = wps_generate_pin();
2558                 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2559                             ret);
2560                 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2561                            wpa_s->p2p_pin);
2562         } else
2563                 wpa_s->p2p_pin[0] = '\0';
2564
2565         if (join) {
2566                 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
2567                 if (auth) {
2568                         wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2569                                    "connect a running group from " MACSTR,
2570                                    MAC2STR(peer_addr));
2571                         os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2572                         return ret;
2573                 }
2574                 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
2575                 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
2576                                            iface_addr) < 0) {
2577                         os_memcpy(iface_addr, peer_addr, ETH_ALEN);
2578                         p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
2579                                          dev_addr);
2580                 }
2581                 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) <
2582                     0)
2583                         return -1;
2584                 return ret;
2585         }
2586
2587         if (freq > 0)
2588                 force_freq = freq;
2589         else if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2590                  wpa_s->assoc_freq)
2591                 force_freq = wpa_s->assoc_freq;
2592         else {
2593                 force_freq = wpa_drv_shared_freq(wpa_s);
2594                 if (force_freq < 0)
2595                         force_freq = 0;
2596         }
2597
2598         if (force_freq > 0) {
2599                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2600                            "channel we are already using (%u MHz) on another "
2601                            "interface", force_freq);
2602         }
2603
2604         wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
2605
2606         if (!wpa_s->create_p2p_iface) {
2607                 if (auth) {
2608                         if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2609                                                  go_intent, wpa_s->own_addr,
2610                                                  force_freq, persistent_group)
2611                             < 0)
2612                                 return -1;
2613                         return ret;
2614                 }
2615                 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
2616                                           go_intent, wpa_s->own_addr,
2617                                           force_freq, persistent_group) < 0)
2618                         return -1;
2619                 return ret;
2620         }
2621
2622         /* Prepare to add a new interface for the group */
2623         iftype = WPA_IF_P2P_GROUP;
2624         if (join)
2625                 iftype = WPA_IF_P2P_CLIENT;
2626         else if (go_intent == 15)
2627                 iftype = WPA_IF_P2P_GO;
2628         if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
2629                 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2630                            "interface for the group");
2631                 return -1;
2632         }
2633
2634         if (auth) {
2635                 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2636                                          go_intent,
2637                                          wpa_s->pending_interface_addr,
2638                                          force_freq, persistent_group) < 0)
2639                         return -1;
2640                 return ret;
2641         }
2642         if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method, go_intent,
2643                                   wpa_s->pending_interface_addr,
2644                                   force_freq, persistent_group) < 0) {
2645                 wpas_p2p_remove_pending_group_interface(wpa_s);
2646                 return -1;
2647         }
2648         return ret;
2649 }
2650
2651
2652 /**
2653  * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
2654  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2655  * @freq: Frequency of the channel in MHz
2656  * @duration: Duration of the stay on the channel in milliseconds
2657  *
2658  * This callback is called when the driver indicates that it has started the
2659  * requested remain-on-channel duration.
2660  */
2661 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2662                                    unsigned int freq, unsigned int duration)
2663 {
2664         wpa_s->roc_waiting_drv_freq = 0;
2665         wpa_s->off_channel_freq = freq;
2666         wpas_send_action_cb(wpa_s, NULL);
2667         if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
2668                 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
2669                               wpa_s->pending_listen_duration);
2670                 wpa_s->pending_listen_freq = 0;
2671         }
2672 }
2673
2674
2675 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
2676                                  unsigned int timeout)
2677 {
2678         /* Limit maximum Listen state time based on driver limitation. */
2679         if (timeout > wpa_s->max_remain_on_chan)
2680                 timeout = wpa_s->max_remain_on_chan;
2681
2682         return p2p_listen(wpa_s->global->p2p, timeout);
2683 }
2684
2685
2686 /**
2687  * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
2688  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2689  * @freq: Frequency of the channel in MHz
2690  *
2691  * This callback is called when the driver indicates that a remain-on-channel
2692  * operation has been completed, i.e., the duration on the requested channel
2693  * has timed out.
2694  */
2695 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2696                                           unsigned int freq)
2697 {
2698         wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
2699                    "(p2p_long_listen=%d pending_action_tx=%p)",
2700                    wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
2701         wpa_s->off_channel_freq = 0;
2702         if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
2703                 return; /* P2P module started a new operation */
2704         if (wpa_s->pending_action_tx)
2705                 return;
2706         if (wpa_s->p2p_long_listen > 0)
2707                 wpa_s->p2p_long_listen -= 5;
2708         if (wpa_s->p2p_long_listen > 0) {
2709                 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
2710                 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen * 1000);
2711         }
2712 }
2713
2714
2715 /**
2716  * wpas_p2p_group_remove - Remove a P2P group
2717  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2718  * @ifname: Network interface name of the group interface or "*" to remove all
2719  *      groups
2720  * Returns: 0 on success, -1 on failure
2721  *
2722  * This function is used to remove a P2P group. This can be used to disconnect
2723  * from a group in which the local end is a P2P Client or to end a P2P Group in
2724  * case the local end is the Group Owner. If a virtual network interface was
2725  * created for this group, that interface will be removed. Otherwise, only the
2726  * configured P2P group network will be removed from the interface.
2727  */
2728 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
2729 {
2730         struct wpa_global *global = wpa_s->global;
2731
2732         if (os_strcmp(ifname, "*") == 0) {
2733                 struct wpa_supplicant *prev;
2734                 wpa_s = global->ifaces;
2735                 while (wpa_s) {
2736                         prev = wpa_s;
2737                         wpa_s = wpa_s->next;
2738                         wpas_p2p_group_delete(prev);
2739                 }
2740                 return 0;
2741         }
2742
2743         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2744                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
2745                         break;
2746         }
2747
2748         if (wpa_s == NULL)
2749                 return -1;
2750
2751         wpas_p2p_group_delete(wpa_s);
2752
2753         return 0;
2754 }
2755
2756
2757 static void wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
2758                                     struct p2p_go_neg_results *params,
2759                                     int freq)
2760 {
2761         u8 bssid[ETH_ALEN];
2762         int res;
2763
2764         os_memset(params, 0, sizeof(*params));
2765         params->role_go = 1;
2766         params->freq = 2412;
2767         if (freq)
2768                 params->freq = freq;
2769         else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
2770                  wpa_s->conf->p2p_oper_channel >= 1 &&
2771                  wpa_s->conf->p2p_oper_channel <= 11)
2772                 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
2773         else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
2774                  wpa_s->conf->p2p_oper_reg_class == 118)
2775                 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
2776         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2777             wpa_s->assoc_freq && !freq) {
2778                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
2779                            "already using");
2780                 params->freq = wpa_s->assoc_freq;
2781         }
2782
2783         res = wpa_drv_shared_freq(wpa_s);
2784         if (res > 0 && !freq) {
2785                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
2786                            "already using on a shared interface");
2787                 params->freq = res;
2788         }
2789 }
2790
2791
2792 static struct wpa_supplicant *
2793 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
2794                          int go)
2795 {
2796         struct wpa_supplicant *group_wpa_s;
2797
2798         if (!wpas_p2p_create_iface(wpa_s))
2799                 return wpa_s;
2800
2801         if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2802                                          WPA_IF_P2P_CLIENT) < 0)
2803                 return NULL;
2804         group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
2805         if (group_wpa_s == NULL) {
2806                 wpas_p2p_remove_pending_group_interface(wpa_s);
2807                 return NULL;
2808         }
2809
2810         return group_wpa_s;
2811 }
2812
2813
2814 /**
2815  * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
2816  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2817  * @persistent_group: Whether to create a persistent group
2818  * @freq: Frequency for the group or 0 to indicate no hardcoding
2819  * Returns: 0 on success, -1 on failure
2820  *
2821  * This function creates a new P2P group with the local end as the Group Owner,
2822  * i.e., without using Group Owner Negotiation.
2823  */
2824 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
2825                        int freq)
2826 {
2827         struct p2p_go_neg_results params;
2828
2829         wpas_p2p_init_go_params(wpa_s, &params, freq);
2830         p2p_go_params(wpa_s->global->p2p, &params);
2831         params.persistent_group = persistent_group;
2832
2833         wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
2834         if (wpa_s == NULL)
2835                 return -1;
2836         wpas_start_wps_go(wpa_s, &params, 0);
2837
2838         return 0;
2839 }
2840
2841
2842 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
2843                                  struct wpa_ssid *params, int addr_allocated)
2844 {
2845         struct wpa_ssid *ssid;
2846
2847         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
2848         if (wpa_s == NULL)
2849                 return -1;
2850
2851         wpa_supplicant_ap_deinit(wpa_s);
2852
2853         ssid = wpa_config_add_network(wpa_s->conf);
2854         if (ssid == NULL)
2855                 return -1;
2856         wpas_notify_network_added(wpa_s, ssid);
2857         wpa_config_set_network_defaults(ssid);
2858         ssid->temporary = 1;
2859         ssid->proto = WPA_PROTO_RSN;
2860         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
2861         ssid->group_cipher = WPA_CIPHER_CCMP;
2862         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
2863         ssid->ssid = os_malloc(params->ssid_len);
2864         if (ssid->ssid == NULL) {
2865                 wpas_notify_network_removed(wpa_s, ssid);
2866                 wpa_config_remove_network(wpa_s->conf, ssid->id);
2867                 return -1;
2868         }
2869         os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
2870         ssid->ssid_len = params->ssid_len;
2871         ssid->p2p_group = 1;
2872         if (params->psk_set) {
2873                 os_memcpy(ssid->psk, params->psk, 32);
2874                 ssid->psk_set = 1;
2875         }
2876         if (params->passphrase)
2877                 ssid->passphrase = os_strdup(params->passphrase);
2878
2879         wpa_supplicant_select_network(wpa_s, ssid);
2880
2881         wpa_s->show_group_started = 1;
2882
2883         return 0;
2884 }
2885
2886
2887 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
2888                                   struct wpa_ssid *ssid, int addr_allocated,
2889                                   int freq)
2890 {
2891         struct p2p_go_neg_results params;
2892
2893         if (ssid->disabled != 2 || ssid->ssid == NULL)
2894                 return -1;
2895
2896         wpa_s->p2p_long_listen = 0;
2897         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2898
2899         if (ssid->mode == WPAS_MODE_INFRA)
2900                 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
2901
2902         if (ssid->mode != WPAS_MODE_P2P_GO)
2903                 return -1;
2904
2905         wpas_p2p_init_go_params(wpa_s, &params, freq);
2906
2907         params.role_go = 1;
2908         if (ssid->passphrase == NULL ||
2909             os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
2910                 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
2911                            "group");
2912                 return -1;
2913         }
2914         os_strlcpy(params.passphrase, ssid->passphrase,
2915                    sizeof(params.passphrase));
2916         os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
2917         params.ssid_len = ssid->ssid_len;
2918         params.persistent_group = 1;
2919
2920         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
2921         if (wpa_s == NULL)
2922                 return -1;
2923
2924         wpas_start_wps_go(wpa_s, &params, 0);
2925
2926         return 0;
2927 }
2928
2929
2930 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
2931                                struct wpabuf *proberesp_ies)
2932 {
2933         struct wpa_supplicant *wpa_s = ctx;
2934         if (wpa_s->ap_iface) {
2935                 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
2936                 if (beacon_ies) {
2937                         wpabuf_free(hapd->p2p_beacon_ie);
2938                         hapd->p2p_beacon_ie = beacon_ies;
2939                 }
2940                 wpabuf_free(hapd->p2p_probe_resp_ie);
2941                 hapd->p2p_probe_resp_ie = proberesp_ies;
2942         } else {
2943                 wpabuf_free(beacon_ies);
2944                 wpabuf_free(proberesp_ies);
2945         }
2946         wpa_supplicant_ap_update_beacon(wpa_s);
2947 }
2948
2949
2950 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
2951                                        int persistent_group,
2952                                        int group_formation)
2953 {
2954         struct p2p_group *group;
2955         struct p2p_group_config *cfg;
2956
2957         cfg = os_zalloc(sizeof(*cfg));
2958         if (cfg == NULL)
2959                 return NULL;
2960
2961         cfg->persistent_group = persistent_group;
2962         os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
2963         cfg->cb_ctx = wpa_s;
2964         cfg->ie_update = wpas_p2p_ie_update;
2965
2966         group = p2p_group_init(wpa_s->global->p2p, cfg);
2967         if (group == NULL)
2968                 os_free(cfg);
2969         if (!group_formation)
2970                 p2p_group_notif_formation_done(group);
2971         wpa_s->p2p_group = group;
2972         return group;
2973 }
2974
2975
2976 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2977                           int registrar)
2978 {
2979         if (!wpa_s->p2p_in_provisioning) {
2980                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
2981                            "provisioning not in progress");
2982                 return;
2983         }
2984
2985         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
2986                              NULL);
2987         if (wpa_s->global->p2p)
2988                 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
2989         wpas_group_formation_completed(wpa_s, 1);
2990 }
2991
2992
2993 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2994                        const char *config_method)
2995 {
2996         u16 config_methods;
2997
2998         if (os_strcmp(config_method, "display") == 0)
2999                 config_methods = WPS_CONFIG_DISPLAY;
3000         else if (os_strcmp(config_method, "keypad") == 0)
3001                 config_methods = WPS_CONFIG_KEYPAD;
3002         else if (os_strcmp(config_method, "pbc") == 0 ||
3003                  os_strcmp(config_method, "pushbutton") == 0)
3004                 config_methods = WPS_CONFIG_PUSHBUTTON;
3005         else
3006                 return -1;
3007
3008         if (wpa_s->global->p2p == NULL)
3009                 return -1;
3010
3011         return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
3012                                  config_methods, 0);
3013 }
3014
3015
3016 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
3017                               char *end)
3018 {
3019         return p2p_scan_result_text(ies, ies_len, buf, end);
3020 }
3021
3022
3023 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
3024 {
3025         if (!wpa_s->pending_action_tx)
3026                 return;
3027
3028         wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
3029                    "operation request");
3030         wpabuf_free(wpa_s->pending_action_tx);
3031         wpa_s->pending_action_tx = NULL;
3032 }
3033
3034
3035 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
3036                   enum p2p_discovery_type type)
3037 {
3038         wpas_p2p_clear_pending_action_tx(wpa_s);
3039         wpa_s->p2p_long_listen = 0;
3040
3041         return p2p_find(wpa_s->global->p2p, timeout, type);
3042 }
3043
3044
3045 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
3046 {
3047         wpas_p2p_clear_pending_action_tx(wpa_s);
3048         wpa_s->p2p_long_listen = 0;
3049         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3050
3051         p2p_stop_find(wpa_s->global->p2p);
3052
3053         wpas_p2p_remove_pending_group_interface(wpa_s);
3054 }
3055
3056
3057 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3058 {
3059         struct wpa_supplicant *wpa_s = eloop_ctx;
3060         wpa_s->p2p_long_listen = 0;
3061 }
3062
3063
3064 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
3065 {
3066         int res;
3067
3068         wpas_p2p_clear_pending_action_tx(wpa_s);
3069
3070         if (timeout == 0) {
3071                 /*
3072                  * This is a request for unlimited Listen state. However, at
3073                  * least for now, this is mapped to a Listen state for one
3074                  * hour.
3075                  */
3076                 timeout = 3600;
3077         }
3078         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3079         wpa_s->p2p_long_listen = 0;
3080
3081         res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
3082         if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
3083                 wpa_s->p2p_long_listen = timeout;
3084                 eloop_register_timeout(timeout, 0,
3085                                        wpas_p2p_long_listen_timeout,
3086                                        wpa_s, NULL);
3087         }
3088
3089         return res;
3090 }
3091
3092
3093 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
3094                           u8 *buf, size_t len, int p2p_group)
3095 {
3096         struct wpabuf *p2p_ie;
3097         int ret;
3098
3099         if (wpa_s->global->p2p_disabled)
3100                 return -1;
3101         if (wpa_s->global->p2p == NULL)
3102                 return -1;
3103         if (bss == NULL)
3104                 return -1;
3105
3106         p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3107         ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3108                                p2p_group, p2p_ie);
3109         wpabuf_free(p2p_ie);
3110
3111         return ret;
3112 }
3113
3114
3115 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
3116                           const u8 *ie, size_t ie_len)
3117 {
3118         if (wpa_s->global->p2p_disabled)
3119                 return 0;
3120         if (wpa_s->global->p2p == NULL)
3121                 return 0;
3122
3123         return p2p_probe_req_rx(wpa_s->global->p2p, addr, ie, ie_len);
3124 }
3125
3126
3127 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3128                         const u8 *sa, const u8 *bssid,
3129                         u8 category, const u8 *data, size_t len, int freq)
3130 {
3131         if (wpa_s->global->p2p_disabled)
3132                 return;
3133         if (wpa_s->global->p2p == NULL)
3134                 return;
3135
3136         p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3137                       freq);
3138 }
3139
3140
3141 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3142 {
3143         if (wpa_s->global->p2p_disabled)
3144                 return;
3145         if (wpa_s->global->p2p == NULL)
3146                 return;
3147
3148         p2p_scan_ie(wpa_s->global->p2p, ies);
3149 }
3150
3151
3152 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3153 {
3154         p2p_group_deinit(wpa_s->p2p_group);
3155         wpa_s->p2p_group = NULL;
3156 }
3157
3158
3159 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3160 {
3161         wpa_s->p2p_long_listen = 0;
3162
3163         return p2p_reject(wpa_s->global->p2p, addr);
3164 }
3165
3166
3167 /* Invite to reinvoke a persistent group */
3168 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3169                     struct wpa_ssid *ssid, const u8 *go_dev_addr)
3170 {
3171         enum p2p_invite_role role;
3172         u8 *bssid = NULL;
3173
3174         if (ssid->mode == WPAS_MODE_P2P_GO) {
3175                 role = P2P_INVITE_ROLE_GO;
3176                 if (peer_addr == NULL) {
3177                         wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3178                                    "address in invitation command");
3179                         return -1;
3180                 }
3181                 if (wpas_p2p_create_iface(wpa_s)) {
3182                         if (wpas_p2p_add_group_interface(wpa_s,
3183                                                          WPA_IF_P2P_GO) < 0) {
3184                                 wpa_printf(MSG_ERROR, "P2P: Failed to "
3185                                            "allocate a new interface for the "
3186                                            "group");
3187                                 return -1;
3188                         }
3189                         bssid = wpa_s->pending_interface_addr;
3190                 } else
3191                         bssid = wpa_s->own_addr;
3192         } else {
3193                 role = P2P_INVITE_ROLE_CLIENT;
3194                 peer_addr = ssid->bssid;
3195         }
3196         wpa_s->pending_invite_ssid_id = ssid->id;
3197
3198         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3199                           ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3200 }
3201
3202
3203 /* Invite to join an active group */
3204 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3205                           const u8 *peer_addr, const u8 *go_dev_addr)
3206 {
3207         struct wpa_global *global = wpa_s->global;
3208         enum p2p_invite_role role;
3209         u8 *bssid = NULL;
3210         struct wpa_ssid *ssid;
3211
3212         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3213                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3214                         break;
3215         }
3216         if (wpa_s == NULL) {
3217                 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3218                 return -1;
3219         }
3220
3221         ssid = wpa_s->current_ssid;
3222         if (ssid == NULL) {
3223                 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3224                            "invitation");
3225                 return -1;
3226         }
3227
3228         if (ssid->mode == WPAS_MODE_P2P_GO) {
3229                 role = P2P_INVITE_ROLE_ACTIVE_GO;
3230                 bssid = wpa_s->own_addr;
3231                 if (go_dev_addr == NULL)
3232                         go_dev_addr = wpa_s->parent->own_addr;
3233         } else {
3234                 role = P2P_INVITE_ROLE_CLIENT;
3235                 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3236                         wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3237                                    "invite to current group");
3238                         return -1;
3239                 }
3240                 bssid = wpa_s->bssid;
3241                 if (go_dev_addr == NULL &&
3242                     !is_zero_ether_addr(wpa_s->go_dev_addr))
3243                         go_dev_addr = wpa_s->go_dev_addr;
3244         }
3245         wpa_s->pending_invite_ssid_id = -1;
3246
3247         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3248                           ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
3249                           go_dev_addr, 0);
3250 }
3251
3252
3253 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3254 {
3255         struct wpa_ssid *ssid = wpa_s->current_ssid;
3256         const char *ssid_txt;
3257         u8 go_dev_addr[ETH_ALEN];
3258         int persistent;
3259
3260         if (!wpa_s->show_group_started || !ssid)
3261                 return;
3262
3263         wpa_s->show_group_started = 0;
3264
3265         ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3266         os_memset(go_dev_addr, 0, ETH_ALEN);
3267         if (ssid->bssid_set)
3268                 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3269         persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3270                                                ssid->ssid_len);
3271         os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3272
3273         if (ssid->passphrase == NULL && ssid->psk_set) {
3274                 char psk[65];
3275                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3276                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3277                         "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
3278                         MACSTR "%s",
3279                         wpa_s->ifname, ssid_txt, ssid->frequency, psk,
3280                         MAC2STR(go_dev_addr),
3281                         persistent ? " [PERSISTENT]" : "");
3282         } else {
3283                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3284                         "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
3285                         "go_dev_addr=" MACSTR "%s",
3286                         wpa_s->ifname, ssid_txt, ssid->frequency,
3287                         ssid->passphrase ? ssid->passphrase : "",
3288                         MAC2STR(go_dev_addr),
3289                         persistent ? " [PERSISTENT]" : "");
3290         }
3291
3292         if (persistent)
3293                 wpas_p2p_store_persistent_group(wpa_s->parent, ssid,
3294                                                 go_dev_addr);
3295 }
3296
3297
3298 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3299                           u32 interval1, u32 duration2, u32 interval2)
3300 {
3301         if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3302             wpa_s->current_ssid == NULL ||
3303             wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3304                 return -1;
3305
3306         return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3307                                 wpa_s->own_addr, wpa_s->assoc_freq,
3308                                 duration1, interval1, duration2, interval2);
3309 }
3310
3311
3312 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3313                         unsigned int interval)
3314 {
3315         return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3316 }
3317
3318
3319 void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3320                            u16 reason_code, const u8 *ie, size_t ie_len)
3321 {
3322         if (wpa_s->global->p2p_disabled)
3323                 return;
3324
3325         p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3326 }
3327
3328
3329 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3330                              u16 reason_code, const u8 *ie, size_t ie_len)
3331 {
3332         if (wpa_s->global->p2p_disabled)
3333                 return;
3334
3335         p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3336 }
3337
3338
3339 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
3340 {
3341         struct p2p_data *p2p = wpa_s->global->p2p;
3342
3343         if (p2p == NULL)
3344                 return;
3345
3346         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3347                 return;
3348
3349         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
3350                 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
3351
3352         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) {
3353                 u8 pri_dev_type[8];
3354                 if (wpa_s->conf->device_type) {
3355                         if (wps_dev_type_str2bin(wpa_s->conf->device_type,
3356                                                  pri_dev_type) < 0) {
3357                                 wpa_printf(MSG_ERROR, "P2P: Invalid "
3358                                            "device_type");
3359                         } else
3360                                 p2p_set_pri_dev_type(p2p, pri_dev_type);
3361                 }
3362         }
3363
3364         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
3365                 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
3366                 size_t num = 0;
3367                 int i;
3368                 for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
3369                         if (wpa_s->conf->sec_device_type[i] == NULL)
3370                                 continue;
3371                         if (wps_dev_type_str2bin(
3372                                     wpa_s->conf->sec_device_type[i],
3373                                     sec_dev_type[num]) < 0) {
3374                                 wpa_printf(MSG_ERROR, "P2P: Invalid "
3375                                            "sec_device_type");
3376                                 continue;
3377                         }
3378                         num++;
3379                         if (num == P2P_SEC_DEVICE_TYPES)
3380                                 break;
3381                 }
3382                 p2p_set_sec_dev_types(p2p, (void *) sec_dev_type, num);
3383         }
3384
3385         if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
3386             wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3387                 char country[3];
3388                 country[0] = wpa_s->conf->country[0];
3389                 country[1] = wpa_s->conf->country[1];
3390                 country[2] = 0x04;
3391                 p2p_set_country(p2p, country);
3392         }
3393
3394         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
3395                 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
3396                                      wpa_s->conf->p2p_ssid_postfix ?
3397                                      os_strlen(wpa_s->conf->p2p_ssid_postfix) :
3398                                      0);
3399         }
3400
3401         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
3402                 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
3403 }
3404
3405
3406 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
3407                      int duration)
3408 {
3409         if (!wpa_s->ap_iface)
3410                 return -1;
3411         return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
3412                                    duration);
3413 }
3414
3415
3416 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
3417 {
3418         if (wpa_s->global->p2p_disabled)
3419                 return -1;
3420         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3421                 return -1;
3422
3423         wpa_s->global->cross_connection = enabled;
3424         p2p_set_cross_connect(wpa_s->global->p2p, enabled);
3425
3426         if (!enabled) {
3427                 struct wpa_supplicant *iface;
3428
3429                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
3430                 {
3431                         if (iface->cross_connect_enabled == 0)
3432                                 continue;
3433
3434                         iface->cross_connect_enabled = 0;
3435                         iface->cross_connect_in_use = 0;
3436                         wpa_msg(iface->parent, MSG_INFO,
3437                                 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3438                                 iface->ifname, iface->cross_connect_uplink);
3439                 }
3440         }
3441
3442         return 0;
3443 }
3444
3445
3446 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
3447 {
3448         struct wpa_supplicant *iface;
3449
3450         if (!uplink->global->cross_connection)
3451                 return;
3452
3453         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3454                 if (!iface->cross_connect_enabled)
3455                         continue;
3456                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3457                     0)
3458                         continue;
3459                 if (iface->ap_iface == NULL)
3460                         continue;
3461                 if (iface->cross_connect_in_use)
3462                         continue;
3463
3464                 iface->cross_connect_in_use = 1;
3465                 wpa_msg(iface->parent, MSG_INFO,
3466                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3467                         iface->ifname, iface->cross_connect_uplink);
3468         }
3469 }
3470
3471
3472 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
3473 {
3474         struct wpa_supplicant *iface;
3475
3476         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3477                 if (!iface->cross_connect_enabled)
3478                         continue;
3479                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3480                     0)
3481                         continue;
3482                 if (!iface->cross_connect_in_use)
3483                         continue;
3484
3485                 wpa_msg(iface->parent, MSG_INFO,
3486                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3487                         iface->ifname, iface->cross_connect_uplink);
3488                 iface->cross_connect_in_use = 0;
3489         }
3490 }
3491
3492
3493 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
3494 {
3495         if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
3496             wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
3497             wpa_s->cross_connect_disallowed)
3498                 wpas_p2p_disable_cross_connect(wpa_s);
3499         else
3500                 wpas_p2p_enable_cross_connect(wpa_s);
3501 }
3502
3503
3504 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
3505 {
3506         wpas_p2p_disable_cross_connect(wpa_s);
3507 }
3508
3509
3510 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
3511 {
3512         struct wpa_supplicant *iface;
3513
3514         if (!wpa_s->global->cross_connection)
3515                 return;
3516
3517         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
3518                 if (iface == wpa_s)
3519                         continue;
3520                 if (iface->drv_flags &
3521                     WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
3522                         continue;
3523                 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
3524                         continue;
3525
3526                 wpa_s->cross_connect_enabled = 1;
3527                 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
3528                            sizeof(wpa_s->cross_connect_uplink));
3529                 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
3530                            "%s to %s whenever uplink is available",
3531                            wpa_s->ifname, wpa_s->cross_connect_uplink);
3532
3533                 if (iface->ap_iface || iface->current_ssid == NULL ||
3534                     iface->current_ssid->mode != WPAS_MODE_INFRA ||
3535                     iface->cross_connect_disallowed ||
3536                     iface->wpa_state != WPA_COMPLETED)
3537                         break;
3538
3539                 wpa_s->cross_connect_in_use = 1;
3540                 wpa_msg(wpa_s->parent, MSG_INFO,
3541                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3542                         wpa_s->ifname, wpa_s->cross_connect_uplink);
3543                 break;
3544         }
3545 }
3546
3547
3548 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
3549 {
3550         if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
3551             !wpa_s->p2p_in_provisioning)
3552                 return 0; /* not P2P client operation */
3553
3554         wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
3555                    "session overlap");
3556         wpas_group_formation_completed(wpa_s, 0);
3557         return 1;
3558 }