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 /*
  40  * How many times to try to scan to find the GO before giving up on join
  41  * request.
  42  */
  43 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
  44
  45
  46 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
  47 static struct wpa_supplicant *
  48 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
  49                          int go);
  50 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
  51 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
  52 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
  53                          const u8 *dev_addr, enum p2p_wps_method wps_method);
  54 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
  55 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
  56 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
  57 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
  58
  59
  60 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
  61                                       struct wpa_scan_results *scan_res)
  62 {
  63         size_t i;
  64
  65         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
  66                 return;
  67
  68         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
  69                    (int) scan_res->num);
  70
  71         for (i = 0; i < scan_res->num; i++) {
  72                 struct wpa_scan_res *bss = scan_res->res[i];
  73                 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
  74                                          bss->freq, bss->level,
  75                                          (const u8 *) (bss + 1),
  76                                          bss->ie_len) > 0)
  77                         break;
  78         }
  79
  80         p2p_scan_res_handled(wpa_s->global->p2p);
  81 }
  82
  83
  84 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq)
  85 {
  86         struct wpa_supplicant *wpa_s = ctx;
  87         struct wpa_driver_scan_params params;
  88         int ret;
  89         struct wpabuf *wps_ie, *ies;
  90         int social_channels[] = { 2412, 2437, 2462, 0, 0 };
  91
  92         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
  93                 return -1;
  94
  95         os_memset(&params, 0, sizeof(params));
  96
  97         /* P2P Wildcard SSID */
  98         params.num_ssids = 1;
  99         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
 100         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
 101
 102         wpa_s->wps->dev.p2p = 1;
 103         wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
 104                                         WPS_REQ_ENROLLEE);
 105         if (wps_ie == NULL)
 106                 return -1;
 107
 108         ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
 109         if (ies == NULL) {
 110                 wpabuf_free(wps_ie);
 111                 return -1;
 112         }
 113         wpabuf_put_buf(ies, wps_ie);
 114         wpabuf_free(wps_ie);
 115
 116         p2p_scan_ie(wpa_s->global->p2p, ies);
 117
 118         params.extra_ies = wpabuf_head(ies);
 119         params.extra_ies_len = wpabuf_len(ies);
 120
 121         switch (type) {
 122         case P2P_SCAN_SOCIAL:
 123                 params.freqs = social_channels;
 124                 break;
 125         case P2P_SCAN_FULL:
 126                 break;
 127         case P2P_SCAN_SPECIFIC:
 128                 social_channels[0] = freq;
 129                 social_channels[1] = 0;
 130                 params.freqs = social_channels;
 131                 break;
 132         case P2P_SCAN_SOCIAL_PLUS_ONE:
 133                 social_channels[3] = freq;
 134                 params.freqs = social_channels;
 135                 break;
 136         }
 137
 138         wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
 139         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
 140                 ret = ieee80211_sta_req_scan(wpa_s, &params);
 141         else
 142                 ret = wpa_drv_scan(wpa_s, &params);
 143
 144         wpabuf_free(ies);
 145
 146         return ret;
 147 }
 148
 149
 150 #ifdef CONFIG_CLIENT_MLME
 151 static void p2p_rx_action_mlme(void *ctx, const u8 *buf, size_t len, int freq)
 152 {
 153         struct wpa_supplicant *wpa_s = ctx;
 154         const struct ieee80211_mgmt *mgmt;
 155         size_t hdr_len;
 156
 157         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
 158                 return;
 159         mgmt = (const struct ieee80211_mgmt *) buf;
 160         hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
 161         if (hdr_len > len)
 162                 return;
 163         p2p_rx_action(wpa_s->global->p2p, mgmt->da, mgmt->sa, mgmt->bssid,
 164                       mgmt->u.action.category,
 165                       &mgmt->u.action.u.vs_public_action.action,
 166                       len - hdr_len, freq);
 167 }
 168 #endif /* CONFIG_CLIENT_MLME */
 169
 170
 171 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
 172 {
 173         switch (p2p_group_interface) {
 174         case P2P_GROUP_INTERFACE_PENDING:
 175                 return WPA_IF_P2P_GROUP;
 176         case P2P_GROUP_INTERFACE_GO:
 177                 return WPA_IF_P2P_GO;
 178         case P2P_GROUP_INTERFACE_CLIENT:
 179                 return WPA_IF_P2P_CLIENT;
 180         }
 181
 182         return WPA_IF_P2P_GROUP;
 183 }
 184
 185
 186 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
 187                                                   const u8 *ssid,
 188                                                   size_t ssid_len, int *go)
 189 {
 190         struct wpa_ssid *s;
 191
 192         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 193                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 194                         if (s->disabled != 0 || !s->p2p_group ||
 195                             s->ssid_len != ssid_len ||
 196                             os_memcmp(ssid, s->ssid, ssid_len) != 0)
 197                                 continue;
 198                         if (s->mode == WPAS_MODE_P2P_GO &&
 199                             s != wpa_s->current_ssid)
 200                                 continue;
 201                         if (go)
 202                                 *go = s->mode == WPAS_MODE_P2P_GO;
 203                         return wpa_s;
 204                 }
 205         }
 206
 207         return NULL;
 208 }
 209
 210
 211 static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s)
 212 {
 213         struct wpa_ssid *ssid;
 214         char *gtype;
 215         const char *reason;
 216
 217         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
 218
 219         ssid = wpa_s->current_ssid;
 220         if (ssid == NULL) {
 221                 /*
 222                  * The current SSID was not known, but there may still be a
 223                  * pending P2P group interface waiting for provisioning.
 224                  */
 225                 ssid = wpa_s->conf->ssid;
 226                 while (ssid) {
 227                         if (ssid->p2p_group &&
 228                             (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 229                              (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
 230                                 break;
 231                         ssid = ssid->next;
 232                 }
 233         }
 234         if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
 235                 gtype = "GO";
 236         else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
 237                  (ssid && ssid->mode == WPAS_MODE_INFRA)) {
 238                 wpa_s->reassociate = 0;
 239                 wpa_s->disconnected = 1;
 240                 wpa_supplicant_deauthenticate(wpa_s,
 241                                               WLAN_REASON_DEAUTH_LEAVING);
 242                 gtype = "client";
 243         } else
 244                 gtype = "GO";
 245         if (wpa_s->cross_connect_in_use) {
 246                 wpa_s->cross_connect_in_use = 0;
 247                 wpa_msg(wpa_s->parent, MSG_INFO,
 248                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
 249                         wpa_s->ifname, wpa_s->cross_connect_uplink);
 250         }
 251         switch (wpa_s->removal_reason) {
 252         case P2P_GROUP_REMOVAL_REQUESTED:
 253                 reason = " reason=REQUESTED";
 254                 break;
 255         case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
 256                 reason = " reason=IDLE";
 257                 break;
 258         case P2P_GROUP_REMOVAL_UNAVAILABLE:
 259                 reason = " reason=UNAVAILABLE";
 260                 break;
 261         default:
 262                 reason = "";
 263                 break;
 264         }
 265         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_REMOVED "%s %s%s",
 266                 wpa_s->ifname, gtype, reason);
 267
 268         if (ssid)
 269                 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
 270
 271         if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
 272                 struct wpa_global *global;
 273                 char *ifname;
 274                 enum wpa_driver_if_type type;
 275                 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
 276                         wpa_s->ifname);
 277                 global = wpa_s->global;
 278                 ifname = os_strdup(wpa_s->ifname);
 279                 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
 280                 wpa_supplicant_remove_iface(wpa_s->global, wpa_s);
 281                 wpa_s = global->ifaces;
 282                 if (wpa_s && ifname)
 283                         wpa_drv_if_remove(wpa_s, type, ifname);
 284                 os_free(ifname);
 285                 return;
 286         }
 287
 288         wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
 289         if (ssid && (ssid->p2p_group ||
 290                      ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 291                      (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
 292                 int id = ssid->id;
 293                 if (ssid == wpa_s->current_ssid)
 294                         wpa_s->current_ssid = NULL;
 295                 wpas_notify_network_removed(wpa_s, ssid);
 296                 wpa_config_remove_network(wpa_s->conf, id);
 297                 wpa_supplicant_clear_status(wpa_s);
 298         } else {
 299                 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
 300                            "found");
 301         }
 302         wpa_supplicant_ap_deinit(wpa_s);
 303 }
 304
 305
 306 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
 307                                      u8 *go_dev_addr,
 308                                      const u8 *ssid, size_t ssid_len)
 309 {
 310         struct wpa_bss *bss;
 311         const u8 *bssid;
 312         struct wpabuf *p2p;
 313         u8 group_capab;
 314         const u8 *addr;
 315
 316         if (wpa_s->go_params)
 317                 bssid = wpa_s->go_params->peer_interface_addr;
 318         else
 319                 bssid = wpa_s->bssid;
 320
 321         bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
 322         if (bss == NULL) {
 323                 u8 iface_addr[ETH_ALEN];
 324                 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
 325                                            iface_addr) == 0)
 326                         bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
 327         }
 328         if (bss == NULL) {
 329                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 330                            "group is persistent - BSS " MACSTR " not found",
 331                            MAC2STR(bssid));
 332                 return 0;
 333         }
 334
 335         p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
 336         if (p2p == NULL) {
 337                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 338                            "group is persistent - BSS " MACSTR
 339                            " did not include P2P IE", MAC2STR(bssid));
 340                 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
 341                             (u8 *) (bss + 1), bss->ie_len);
 342                 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
 343                             ((u8 *) bss + 1) + bss->ie_len,
 344                             bss->beacon_ie_len);
 345                 return 0;
 346         }
 347
 348         group_capab = p2p_get_group_capab(p2p);
 349         addr = p2p_get_go_dev_addr(p2p);
 350         wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
 351                    "group_capab=0x%x", group_capab);
 352         if (addr) {
 353                 os_memcpy(go_dev_addr, addr, ETH_ALEN);
 354                 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
 355                            MAC2STR(addr));
 356         } else
 357                 os_memset(go_dev_addr, 0, ETH_ALEN);
 358         wpabuf_free(p2p);
 359
 360         wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
 361                    "go_dev_addr=" MACSTR,
 362                    MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
 363
 364         return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
 365 }
 366
 367
 368 static void wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
 369                                             struct wpa_ssid *ssid,
 370                                             const u8 *go_dev_addr)
 371 {
 372         struct wpa_ssid *s;
 373         int changed = 0;
 374
 375         wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
 376                    "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
 377         for (s = wpa_s->conf->ssid; s; s = s->next) {
 378                 if (s->disabled == 2 &&
 379                     os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
 380                     s->ssid_len == ssid->ssid_len &&
 381                     os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
 382                         break;
 383         }
 384
 385         if (s) {
 386                 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
 387                            "entry");
 388                 if (ssid->passphrase && !s->passphrase)
 389                         changed = 1;
 390                 else if (ssid->passphrase && s->passphrase &&
 391                          os_strcmp(ssid->passphrase, s->passphrase) != 0)
 392                         changed = 1;
 393         } else {
 394                 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
 395                            "entry");
 396                 changed = 1;
 397                 s = wpa_config_add_network(wpa_s->conf);
 398                 if (s == NULL)
 399                         return;
 400                 wpa_config_set_network_defaults(s);
 401         }
 402
 403         s->p2p_group = 1;
 404         s->p2p_persistent_group = 1;
 405         s->disabled = 2;
 406         s->bssid_set = 1;
 407         os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
 408         s->mode = ssid->mode;
 409         s->auth_alg = WPA_AUTH_ALG_OPEN;
 410         s->key_mgmt = WPA_KEY_MGMT_PSK;
 411         s->proto = WPA_PROTO_RSN;
 412         s->pairwise_cipher = WPA_CIPHER_CCMP;
 413         s->export_keys = 1;
 414         if (ssid->passphrase) {
 415                 os_free(s->passphrase);
 416                 s->passphrase = os_strdup(ssid->passphrase);
 417         }
 418         if (ssid->psk_set) {
 419                 s->psk_set = 1;
 420                 os_memcpy(s->psk, ssid->psk, 32);
 421         }
 422         if (s->passphrase && !s->psk_set)
 423                 wpa_config_update_psk(s);
 424         if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
 425                 os_free(s->ssid);
 426                 s->ssid = os_malloc(ssid->ssid_len);
 427         }
 428         if (s->ssid) {
 429                 s->ssid_len = ssid->ssid_len;
 430                 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
 431         }
 432
 433 #ifndef CONFIG_NO_CONFIG_WRITE
 434         if (changed && wpa_s->conf->update_config &&
 435             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 436                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
 437         }
 438 #endif /* CONFIG_NO_CONFIG_WRITE */
 439 }
 440
 441
 442 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
 443                                            int success)
 444 {
 445         struct wpa_ssid *ssid;
 446         const char *ssid_txt;
 447         int client;
 448         int persistent;
 449         u8 go_dev_addr[ETH_ALEN];
 450
 451         /*
 452          * This callback is likely called for the main interface. Update wpa_s
 453          * to use the group interface if a new interface was created for the
 454          * group.
 455          */
 456         if (wpa_s->global->p2p_group_formation)
 457                 wpa_s = wpa_s->global->p2p_group_formation;
 458         wpa_s->global->p2p_group_formation = NULL;
 459         wpa_s->p2p_in_provisioning = 0;
 460
 461         if (!success) {
 462                 wpa_msg(wpa_s->parent, MSG_INFO,
 463                         P2P_EVENT_GROUP_FORMATION_FAILURE);
 464                 wpas_p2p_group_delete(wpa_s);
 465                 return;
 466         }
 467
 468         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
 469
 470         ssid = wpa_s->current_ssid;
 471         if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
 472                 ssid->mode = WPAS_MODE_P2P_GO;
 473                 p2p_group_notif_formation_done(wpa_s->p2p_group);
 474                 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
 475         }
 476
 477         persistent = 0;
 478         if (ssid) {
 479                 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
 480                 client = ssid->mode == WPAS_MODE_INFRA;
 481                 if (ssid->mode == WPAS_MODE_P2P_GO) {
 482                         persistent = ssid->p2p_persistent_group;
 483                         os_memcpy(go_dev_addr, wpa_s->parent->own_addr,
 484                                   ETH_ALEN);
 485                 } else
 486                         persistent = wpas_p2p_persistent_group(wpa_s,
 487                                                                go_dev_addr,
 488                                                                ssid->ssid,
 489                                                                ssid->ssid_len);
 490         } else {
 491                 ssid_txt = "";
 492                 client = wpa_s->p2p_group_interface ==
 493                         P2P_GROUP_INTERFACE_CLIENT;
 494         }
 495
 496         wpa_s->show_group_started = 0;
 497         if (client) {
 498                 /*
 499                  * Indicate event only after successfully completed 4-way
 500                  * handshake, i.e., when the interface is ready for data
 501                  * packets.
 502                  */
 503                 wpa_s->show_group_started = 1;
 504         } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
 505                 char psk[65];
 506                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
 507                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 508                         "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
 509                         "%s",
 510                         wpa_s->ifname, ssid_txt, ssid->frequency, psk,
 511                         MAC2STR(go_dev_addr),
 512                         persistent ? " [PERSISTENT]" : "");
 513                 wpas_p2p_cross_connect_setup(wpa_s);
 514                 wpas_p2p_set_group_idle_timeout(wpa_s);
 515         } else {
 516                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 517                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 518                         "go_dev_addr=" MACSTR "%s",
 519                         wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
 520                         ssid && ssid->passphrase ? ssid->passphrase : "",
 521                         MAC2STR(go_dev_addr),
 522                         persistent ? " [PERSISTENT]" : "");
 523                 wpas_p2p_cross_connect_setup(wpa_s);
 524                 wpas_p2p_set_group_idle_timeout(wpa_s);
 525         }
 526
 527         if (persistent)
 528                 wpas_p2p_store_persistent_group(wpa_s->parent, ssid,
 529                                                 go_dev_addr);
 530 }
 531
 532
 533 static struct wpa_supplicant *
 534 wpas_get_tx_interface(struct wpa_supplicant *wpa_s, const u8 *src)
 535 {
 536         struct wpa_supplicant *iface;
 537
 538         if (os_memcmp(src, wpa_s->own_addr, ETH_ALEN) == 0)
 539                 return wpa_s;
 540
 541         /*
 542          * Try to find a group interface that matches with the source address.
 543          */
 544         iface = wpa_s->global->ifaces;
 545         while (iface) {
 546                 if (os_memcmp(wpa_s->pending_action_src,
 547                               iface->own_addr, ETH_ALEN) == 0)
 548                         break;
 549                 iface = iface->next;
 550         }
 551         if (iface) {
 552                 wpa_printf(MSG_DEBUG, "P2P: Use group interface %s "
 553                            "instead of interface %s for Action TX",
 554                            iface->ifname, wpa_s->ifname);
 555                 return iface;
 556         }
 557
 558         return wpa_s;
 559 }
 560
 561
 562 static void wpas_send_action_cb(void *eloop_ctx, void *timeout_ctx)
 563 {
 564         struct wpa_supplicant *wpa_s = eloop_ctx;
 565         struct wpa_supplicant *iface;
 566         int res;
 567         int without_roc;
 568
 569         without_roc = wpa_s->pending_action_without_roc;
 570         wpa_s->pending_action_without_roc = 0;
 571         wpa_printf(MSG_DEBUG, "P2P: Send Action callback (without_roc=%d "
 572                    "pending_action_tx=%p)",
 573                    without_roc, wpa_s->pending_action_tx);
 574
 575         if (wpa_s->pending_action_tx == NULL)
 576                 return;
 577
 578         /*
 579          * This call is likely going to be on the P2P device instance if the
 580          * driver uses a separate interface for that purpose. However, some
 581          * Action frames are actually sent within a P2P Group and when that is
 582          * the case, we need to follow power saving (e.g., GO buffering the
 583          * frame for a client in PS mode or a client following the advertised
 584          * NoA from its GO). To make that easier for the driver, select the
 585          * correct group interface here.
 586          */
 587         iface = wpas_get_tx_interface(wpa_s, wpa_s->pending_action_src);
 588
 589         if (wpa_s->off_channel_freq != wpa_s->pending_action_freq &&
 590             wpa_s->pending_action_freq != 0 &&
 591             wpa_s->pending_action_freq != iface->assoc_freq) {
 592                 wpa_printf(MSG_DEBUG, "P2P: Pending Action frame TX "
 593                            "waiting for another freq=%u (off_channel_freq=%u "
 594                            "assoc_freq=%u)",
 595                            wpa_s->pending_action_freq,
 596                            wpa_s->off_channel_freq,
 597                            iface->assoc_freq);
 598                 if (without_roc && wpa_s->off_channel_freq == 0) {
 599                         /*
 600                          * We may get here if wpas_send_action() found us to be
 601                          * on the correct channel, but remain-on-channel cancel
 602                          * event was received before getting here.
 603                          */
 604                         wpa_printf(MSG_DEBUG, "P2P: Schedule "
 605                                    "remain-on-channel to send Action frame");
 606                         if (wpa_drv_remain_on_channel(
 607                                     wpa_s, wpa_s->pending_action_freq, 200) <
 608                             0) {
 609                                 wpa_printf(MSG_DEBUG, "P2P: Failed to request "
 610                                            "driver to remain on channel (%u "
 611                                            "MHz) for Action Frame TX",
 612                                            wpa_s->pending_action_freq);
 613                         } else {
 614                                 wpa_s->off_channel_freq = 0;
 615                                 wpa_s->roc_waiting_drv_freq =
 616                                         wpa_s->pending_action_freq;
 617                         }
 618                 }
 619                 return;
 620         }
 621
 622         wpa_printf(MSG_DEBUG, "P2P: Sending pending Action frame to "
 623                    MACSTR " using interface %s",
 624                    MAC2STR(wpa_s->pending_action_dst), iface->ifname);
 625         res = wpa_drv_send_action(iface, wpa_s->pending_action_freq, 0,
 626                                   wpa_s->pending_action_dst,
 627                                   wpa_s->pending_action_src,
 628                                   wpa_s->pending_action_bssid,
 629                                   wpabuf_head(wpa_s->pending_action_tx),
 630                                   wpabuf_len(wpa_s->pending_action_tx));
 631         if (res) {
 632                 wpa_printf(MSG_DEBUG, "P2P: Failed to send the pending "
 633                            "Action frame");
 634                 /*
 635                  * Use fake TX status event to allow P2P state machine to
 636                  * continue.
 637                  */
 638                 wpas_send_action_tx_status(
 639                         wpa_s, wpa_s->pending_action_dst,
 640                         wpabuf_head(wpa_s->pending_action_tx),
 641                         wpabuf_len(wpa_s->pending_action_tx),
 642                         P2P_SEND_ACTION_FAILED);
 643         }
 644 }
 645
 646
 647 void wpas_send_action_tx_status(struct wpa_supplicant *wpa_s, const u8 *dst,
 648                                 const u8 *data, size_t data_len,
 649                                 enum p2p_send_action_result result)
 650 {
 651         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
 652                 return;
 653         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
 654                 return;
 655
 656         if (wpa_s->pending_action_tx == NULL) {
 657                 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - no "
 658                            "pending operation");
 659                 return;
 660         }
 661
 662         if (os_memcmp(dst, wpa_s->pending_action_dst, ETH_ALEN) != 0) {
 663                 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - unknown "
 664                            "destination address");
 665                 return;
 666         }
 667
 668         wpabuf_free(wpa_s->pending_action_tx);
 669         wpa_s->pending_action_tx = NULL;
 670
 671         p2p_send_action_cb(wpa_s->global->p2p, wpa_s->pending_action_freq,
 672                            wpa_s->pending_action_dst,
 673                            wpa_s->pending_action_src,
 674                            wpa_s->pending_action_bssid,
 675                            result);
 676
 677         if (wpa_s->pending_pd_before_join &&
 678             (os_memcmp(wpa_s->pending_action_dst, wpa_s->pending_join_dev_addr,
 679                        ETH_ALEN) == 0 ||
 680              os_memcmp(wpa_s->pending_action_dst,
 681                        wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
 682                 wpa_s->pending_pd_before_join = 0;
 683                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
 684                            "join-existing-group operation");
 685                 wpas_p2p_join_start(wpa_s);
 686         }
 687 }
 688
 689
 690 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
 691                             const u8 *src, const u8 *bssid, const u8 *buf,
 692                             size_t len, unsigned int wait_time)
 693 {
 694         struct wpa_supplicant *wpa_s = ctx;
 695
 696         wpa_printf(MSG_DEBUG, "P2P: Send action frame: freq=%d dst=" MACSTR
 697                    " src=" MACSTR " bssid=" MACSTR " len=%d",
 698                    freq, MAC2STR(dst), MAC2STR(src), MAC2STR(bssid),
 699                    (int) len);
 700
 701         if (wpa_s->pending_action_tx) {
 702                 wpa_printf(MSG_DEBUG, "P2P: Dropped pending Action frame TX "
 703                            "to " MACSTR, MAC2STR(wpa_s->pending_action_dst));
 704                 wpabuf_free(wpa_s->pending_action_tx);
 705         }
 706         wpa_s->pending_action_tx = wpabuf_alloc(len);
 707         if (wpa_s->pending_action_tx == NULL) {
 708                 wpa_printf(MSG_DEBUG, "P2P: Failed to allocate Action frame "
 709                            "TX buffer (len=%llu)", (unsigned long long) len);
 710                 return -1;
 711         }
 712         wpabuf_put_data(wpa_s->pending_action_tx, buf, len);
 713         os_memcpy(wpa_s->pending_action_src, src, ETH_ALEN);
 714         os_memcpy(wpa_s->pending_action_dst, dst, ETH_ALEN);
 715         os_memcpy(wpa_s->pending_action_bssid, bssid, ETH_ALEN);
 716         wpa_s->pending_action_freq = freq;
 717
 718         if (freq != 0 && wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) {
 719                 struct wpa_supplicant *iface;
 720
 721                 iface = wpas_get_tx_interface(wpa_s, wpa_s->pending_action_src);
 722                 wpa_s->action_tx_wait_time = wait_time;
 723
 724                 return wpa_drv_send_action(iface, wpa_s->pending_action_freq,
 725                                         wait_time, wpa_s->pending_action_dst,
 726                                         wpa_s->pending_action_src,
 727                                         wpa_s->pending_action_bssid,
 728                                         wpabuf_head(wpa_s->pending_action_tx),
 729                                         wpabuf_len(wpa_s->pending_action_tx));
 730         }
 731
 732         if (freq) {
 733                 struct wpa_supplicant *tx_iface;
 734                 tx_iface = wpas_get_tx_interface(wpa_s, src);
 735                 if (tx_iface->assoc_freq == freq) {
 736                         wpa_printf(MSG_DEBUG, "P2P: Already on requested "
 737                                    "channel (TX interface operating channel)");
 738                         freq = 0;
 739                 }
 740         }
 741
 742         if (wpa_s->off_channel_freq == freq || freq == 0) {
 743                 wpa_printf(MSG_DEBUG, "P2P: Already on requested channel; "
 744                            "send Action frame immediately");
 745                 /* TODO: Would there ever be need to extend the current
 746                  * duration on the channel? */
 747                 wpa_s->pending_action_without_roc = 1;
 748                 eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
 749                 eloop_register_timeout(0, 0, wpas_send_action_cb, wpa_s, NULL);
 750                 return 0;
 751         }
 752         wpa_s->pending_action_without_roc = 0;
 753
 754         if (wpa_s->roc_waiting_drv_freq == freq) {
 755                 wpa_printf(MSG_DEBUG, "P2P: Already waiting for driver to get "
 756                            "to frequency %u MHz; continue waiting to send the "
 757                            "Action frame", freq);
 758                 return 0;
 759         }
 760
 761         wpa_printf(MSG_DEBUG, "P2P: Schedule Action frame to be transmitted "
 762                    "once the driver gets to the requested channel");
 763         if (wait_time > wpa_s->max_remain_on_chan)
 764                 wait_time = wpa_s->max_remain_on_chan;
 765         if (wpa_drv_remain_on_channel(wpa_s, freq, wait_time) < 0) {
 766                 wpa_printf(MSG_DEBUG, "P2P: Failed to request driver "
 767                            "to remain on channel (%u MHz) for Action "
 768                            "Frame TX", freq);
 769                 return -1;
 770         }
 771         wpa_s->off_channel_freq = 0;
 772         wpa_s->roc_waiting_drv_freq = freq;
 773
 774         return 0;
 775 }
 776
 777
 778 static void wpas_send_action_done(void *ctx)
 779 {
 780         struct wpa_supplicant *wpa_s = ctx;
 781         wpa_printf(MSG_DEBUG, "P2P: Action frame sequence done notification");
 782         wpabuf_free(wpa_s->pending_action_tx);
 783         wpa_s->pending_action_tx = NULL;
 784         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) {
 785                 if (wpa_s->action_tx_wait_time)
 786                         wpa_drv_send_action_cancel_wait(wpa_s);
 787                 wpa_s->off_channel_freq = 0;
 788         } else if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
 789                 wpa_drv_cancel_remain_on_channel(wpa_s);
 790                 wpa_s->off_channel_freq = 0;
 791                 wpa_s->roc_waiting_drv_freq = 0;
 792         }
 793 }
 794
 795
 796 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
 797                                     struct p2p_go_neg_results *params)
 798 {
 799         if (wpa_s->go_params == NULL) {
 800                 wpa_s->go_params = os_malloc(sizeof(*params));
 801                 if (wpa_s->go_params == NULL)
 802                         return -1;
 803         }
 804         os_memcpy(wpa_s->go_params, params, sizeof(*params));
 805         return 0;
 806 }
 807
 808
 809 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
 810                                     struct p2p_go_neg_results *res)
 811 {
 812         wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
 813                    MAC2STR(res->peer_interface_addr));
 814         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
 815                           res->ssid, res->ssid_len);
 816         wpa_supplicant_ap_deinit(wpa_s);
 817         wpas_copy_go_neg_results(wpa_s, res);
 818         if (res->wps_method == WPS_PBC)
 819                 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
 820         else {
 821                 u16 dev_pw_id = DEV_PW_DEFAULT;
 822                 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
 823                         dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
 824                 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
 825                                    wpa_s->p2p_pin, 1, dev_pw_id);
 826         }
 827 }
 828
 829
 830 static void p2p_go_configured(void *ctx, void *data)
 831 {
 832         struct wpa_supplicant *wpa_s = ctx;
 833         struct p2p_go_neg_results *params = data;
 834         struct wpa_ssid *ssid;
 835
 836         ssid = wpa_s->current_ssid;
 837         if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
 838                 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
 839                 if (wpa_s->global->p2p_group_formation == wpa_s)
 840                         wpa_s->global->p2p_group_formation = NULL;
 841                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 842                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 843                         "go_dev_addr=" MACSTR "%s",
 844                         wpa_s->ifname,
 845                         wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
 846                         ssid->frequency,
 847                         params->passphrase ? params->passphrase : "",
 848                         MAC2STR(wpa_s->parent->own_addr),
 849                         params->persistent_group ? " [PERSISTENT]" : "");
 850                 if (params->persistent_group)
 851                         wpas_p2p_store_persistent_group(
 852                                 wpa_s->parent, ssid,
 853                                 wpa_s->parent->own_addr);
 854                 wpas_p2p_cross_connect_setup(wpa_s);
 855                 wpas_p2p_set_group_idle_timeout(wpa_s);
 856                 return;
 857         }
 858
 859         wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
 860         if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
 861                                               params->peer_interface_addr)) {
 862                 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
 863                            "filtering");
 864                 return;
 865         }
 866         if (params->wps_method == WPS_PBC)
 867                 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
 868                                           NULL);
 869         else if (wpa_s->p2p_pin[0])
 870                 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
 871                                           wpa_s->p2p_pin, NULL, 0);
 872         os_free(wpa_s->go_params);
 873         wpa_s->go_params = NULL;
 874 }
 875
 876
 877 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
 878                               struct p2p_go_neg_results *params,
 879                               int group_formation)
 880 {
 881         struct wpa_ssid *ssid;
 882
 883         if (wpas_copy_go_neg_results(wpa_s, params) < 0)
 884                 return;
 885
 886         ssid = wpa_config_add_network(wpa_s->conf);
 887         if (ssid == NULL)
 888                 return;
 889
 890         wpas_notify_network_added(wpa_s, ssid);
 891         wpa_config_set_network_defaults(ssid);
 892         ssid->temporary = 1;
 893         ssid->p2p_group = 1;
 894         ssid->p2p_persistent_group = params->persistent_group;
 895         ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
 896                 WPAS_MODE_P2P_GO;
 897         ssid->frequency = params->freq;
 898         ssid->ssid = os_zalloc(params->ssid_len + 1);
 899         if (ssid->ssid) {
 900                 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
 901                 ssid->ssid_len = params->ssid_len;
 902         }
 903         ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 904         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 905         ssid->proto = WPA_PROTO_RSN;
 906         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 907         ssid->passphrase = os_strdup(params->passphrase);
 908
 909         wpa_s->ap_configured_cb = p2p_go_configured;
 910         wpa_s->ap_configured_cb_ctx = wpa_s;
 911         wpa_s->ap_configured_cb_data = wpa_s->go_params;
 912         wpa_s->connect_without_scan = 1;
 913         wpa_s->reassociate = 1;
 914         wpa_s->disconnected = 0;
 915         wpa_supplicant_req_scan(wpa_s, 0, 0);
 916 }
 917
 918
 919 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
 920                                   const struct wpa_supplicant *src)
 921 {
 922         struct wpa_config *d;
 923         const struct wpa_config *s;
 924
 925         d = dst->conf;
 926         s = src->conf;
 927
 928 #define C(n) if (s->n) d->n = os_strdup(s->n)
 929         C(device_name);
 930         C(manufacturer);
 931         C(model_name);
 932         C(model_number);
 933         C(serial_number);
 934         C(device_type);
 935         C(config_methods);
 936 #undef C
 937
 938         d->p2p_group_idle = s->p2p_group_idle;
 939         d->p2p_intra_bss = s->p2p_intra_bss;
 940 }
 941
 942
 943 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
 944                                         enum wpa_driver_if_type type)
 945 {
 946         char ifname[120], force_ifname[120];
 947
 948         if (wpa_s->pending_interface_name[0]) {
 949                 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
 950                            "- skip creation of a new one");
 951                 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
 952                         wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
 953                                    "unknown?! ifname='%s'",
 954                                    wpa_s->pending_interface_name);
 955                         return -1;
 956                 }
 957                 return 0;
 958         }
 959
 960         os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
 961                     wpa_s->p2p_group_idx);
 962         if (os_strlen(ifname) >= IFNAMSIZ &&
 963             os_strlen(wpa_s->ifname) < IFNAMSIZ) {
 964                 /* Try to avoid going over the IFNAMSIZ length limit */
 965                 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
 966                             wpa_s->p2p_group_idx);
 967         }
 968         force_ifname[0] = '\0';
 969
 970         wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
 971                    ifname);
 972         wpa_s->p2p_group_idx++;
 973
 974         wpa_s->pending_interface_type = type;
 975         if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
 976                            wpa_s->pending_interface_addr, NULL) < 0) {
 977                 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
 978                            "interface");
 979                 return -1;
 980         }
 981
 982         if (force_ifname[0]) {
 983                 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
 984                            force_ifname);
 985                 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
 986                            sizeof(wpa_s->pending_interface_name));
 987         } else
 988                 os_strlcpy(wpa_s->pending_interface_name, ifname,
 989                            sizeof(wpa_s->pending_interface_name));
 990         wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
 991                    MACSTR, wpa_s->pending_interface_name,
 992                    MAC2STR(wpa_s->pending_interface_addr));
 993
 994         return 0;
 995 }
 996
 997
 998 static void wpas_p2p_remove_pending_group_interface(
 999         struct wpa_supplicant *wpa_s)
1000 {
1001         if (!wpa_s->pending_interface_name[0] ||
1002             is_zero_ether_addr(wpa_s->pending_interface_addr))
1003                 return; /* No pending virtual interface */
1004
1005         wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1006                    wpa_s->pending_interface_name);
1007         wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1008                           wpa_s->pending_interface_name);
1009         os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1010         wpa_s->pending_interface_name[0] = '\0';
1011 }
1012
1013
1014 static struct wpa_supplicant *
1015 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1016 {
1017         struct wpa_interface iface;
1018         struct wpa_supplicant *group_wpa_s;
1019
1020         if (!wpa_s->pending_interface_name[0]) {
1021                 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1022                 if (!wpas_p2p_create_iface(wpa_s))
1023                         return NULL;
1024                 /*
1025                  * Something has forced us to remove the pending interface; try
1026                  * to create a new one and hope for the best that we will get
1027                  * the same local address.
1028                  */
1029                 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1030                                                  WPA_IF_P2P_CLIENT) < 0)
1031                         return NULL;
1032         }
1033
1034         os_memset(&iface, 0, sizeof(iface));
1035         iface.ifname = wpa_s->pending_interface_name;
1036         iface.driver = wpa_s->driver->name;
1037         iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1038         iface.driver_param = wpa_s->conf->driver_param;
1039         group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1040         if (group_wpa_s == NULL) {
1041                 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1042                            "wpa_supplicant interface");
1043                 return NULL;
1044         }
1045         wpa_s->pending_interface_name[0] = '\0';
1046         group_wpa_s->parent = wpa_s;
1047         group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1048                 P2P_GROUP_INTERFACE_CLIENT;
1049         wpa_s->global->p2p_group_formation = group_wpa_s;
1050
1051         wpas_p2p_clone_config(group_wpa_s, wpa_s);
1052
1053         return group_wpa_s;
1054 }
1055
1056
1057 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1058                                              void *timeout_ctx)
1059 {
1060         struct wpa_supplicant *wpa_s = eloop_ctx;
1061         wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1062         if (wpa_s->global->p2p)
1063                 p2p_group_formation_failed(wpa_s->global->p2p);
1064         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1065                 wpa_drv_p2p_group_formation_failed(wpa_s);
1066         wpas_group_formation_completed(wpa_s, 0);
1067 }
1068
1069
1070 void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1071 {
1072         struct wpa_supplicant *wpa_s = ctx;
1073
1074         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1075                 wpa_drv_cancel_remain_on_channel(wpa_s);
1076                 wpa_s->off_channel_freq = 0;
1077                 wpa_s->roc_waiting_drv_freq = 0;
1078         }
1079
1080         if (res->status) {
1081                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
1082                         res->status);
1083                 wpas_notify_p2p_go_neg_completed(wpa_s, res->status);
1084                 wpas_p2p_remove_pending_group_interface(wpa_s);
1085                 return;
1086         }
1087
1088         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
1089         wpas_notify_p2p_go_neg_completed(wpa_s, P2P_SC_SUCCESS);
1090
1091         if (wpa_s->create_p2p_iface) {
1092                 struct wpa_supplicant *group_wpa_s =
1093                         wpas_p2p_init_group_interface(wpa_s, res->role_go);
1094                 if (group_wpa_s == NULL) {
1095                         wpas_p2p_remove_pending_group_interface(wpa_s);
1096                         return;
1097                 }
1098                 if (group_wpa_s != wpa_s) {
1099                         os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1100                                   sizeof(group_wpa_s->p2p_pin));
1101                         group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1102                 }
1103                 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1104                 wpa_s->pending_interface_name[0] = '\0';
1105                 group_wpa_s->p2p_in_provisioning = 1;
1106
1107                 if (res->role_go)
1108                         wpas_start_wps_go(group_wpa_s, res, 1);
1109                 else
1110                         wpas_start_wps_enrollee(group_wpa_s, res);
1111         } else {
1112                 wpa_s->p2p_in_provisioning = 1;
1113                 wpa_s->global->p2p_group_formation = wpa_s;
1114
1115                 if (res->role_go)
1116                         wpas_start_wps_go(wpa_s, res, 1);
1117                 else
1118                         wpas_start_wps_enrollee(ctx, res);
1119         }
1120
1121         wpa_s->p2p_long_listen = 0;
1122         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1123
1124         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1125         eloop_register_timeout(15 + res->peer_config_timeout / 100,
1126                                (res->peer_config_timeout % 100) * 10000,
1127                                wpas_p2p_group_formation_timeout, wpa_s, NULL);
1128 }
1129
1130
1131 void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1132 {
1133         struct wpa_supplicant *wpa_s = ctx;
1134         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1135                 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1136
1137         wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1138 }
1139
1140
1141 void wpas_dev_found(void *ctx, const u8 *addr,
1142                     const struct p2p_peer_info *info,
1143                     int new_device)
1144 {
1145         struct wpa_supplicant *wpa_s = ctx;
1146         char devtype[WPS_DEV_TYPE_BUFSIZE];
1147
1148         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1149                 " p2p_dev_addr=" MACSTR
1150                 " pri_dev_type=%s name='%s' config_methods=0x%x "
1151                 "dev_capab=0x%x group_capab=0x%x",
1152                 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1153                 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1154                                      sizeof(devtype)),
1155                 info->device_name, info->config_methods,
1156                 info->dev_capab, info->group_capab);
1157
1158         wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1159 }
1160
1161
1162 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1163 {
1164         struct wpa_supplicant *wpa_s = ctx;
1165
1166         wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1167 }
1168
1169
1170 static int wpas_start_listen(void *ctx, unsigned int freq,
1171                              unsigned int duration,
1172                              const struct wpabuf *probe_resp_ie)
1173 {
1174         struct wpa_supplicant *wpa_s = ctx;
1175
1176         wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1177
1178         if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1179                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1180                            "report received Probe Request frames");
1181                 return -1;
1182         }
1183
1184         wpa_s->pending_listen_freq = freq;
1185         wpa_s->pending_listen_duration = duration;
1186
1187         if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1188                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1189                            "to remain on channel (%u MHz) for Listen "
1190                            "state", freq);
1191                 wpa_s->pending_listen_freq = 0;
1192                 return -1;
1193         }
1194         wpa_s->off_channel_freq = 0;
1195         wpa_s->roc_waiting_drv_freq = freq;
1196
1197         return 0;
1198 }
1199
1200
1201 static void wpas_stop_listen(void *ctx)
1202 {
1203         struct wpa_supplicant *wpa_s = ctx;
1204         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1205                 wpa_drv_cancel_remain_on_channel(wpa_s);
1206                 wpa_s->off_channel_freq = 0;
1207                 wpa_s->roc_waiting_drv_freq = 0;
1208         }
1209         wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1210         wpa_drv_probe_req_report(wpa_s, 0);
1211 }
1212
1213
1214 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1215 {
1216         struct wpa_supplicant *wpa_s = ctx;
1217         return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf));
1218 }
1219
1220
1221 static struct p2p_srv_bonjour *
1222 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1223                              const struct wpabuf *query)
1224 {
1225         struct p2p_srv_bonjour *bsrv;
1226         size_t len;
1227
1228         len = wpabuf_len(query);
1229         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1230                          struct p2p_srv_bonjour, list) {
1231                 if (len == wpabuf_len(bsrv->query) &&
1232                     os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1233                               len) == 0)
1234                         return bsrv;
1235         }
1236         return NULL;
1237 }
1238
1239
1240 static struct p2p_srv_upnp *
1241 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1242                           const char *service)
1243 {
1244         struct p2p_srv_upnp *usrv;
1245
1246         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1247                          struct p2p_srv_upnp, list) {
1248                 if (version == usrv->version &&
1249                     os_strcmp(service, usrv->service) == 0)
1250                         return usrv;
1251         }
1252         return NULL;
1253 }
1254
1255
1256 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1257                                         u8 srv_trans_id)
1258 {
1259         u8 *len_pos;
1260
1261         if (wpabuf_tailroom(resp) < 5)
1262                 return;
1263
1264         /* Length (to be filled) */
1265         len_pos = wpabuf_put(resp, 2);
1266         wpabuf_put_u8(resp, srv_proto);
1267         wpabuf_put_u8(resp, srv_trans_id);
1268         /* Status Code */
1269         wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1270         /* Response Data: empty */
1271         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1272 }
1273
1274
1275 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1276                                 struct wpabuf *resp, u8 srv_trans_id)
1277 {
1278         struct p2p_srv_bonjour *bsrv;
1279         u8 *len_pos;
1280
1281         wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1282
1283         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1284                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1285                 return;
1286         }
1287
1288         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1289                          struct p2p_srv_bonjour, list) {
1290                 if (wpabuf_tailroom(resp) <
1291                     5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1292                         return;
1293                 /* Length (to be filled) */
1294                 len_pos = wpabuf_put(resp, 2);
1295                 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1296                 wpabuf_put_u8(resp, srv_trans_id);
1297                 /* Status Code */
1298                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1299                 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1300                                   wpabuf_head(bsrv->resp),
1301                                   wpabuf_len(bsrv->resp));
1302                 /* Response Data */
1303                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1304                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1305                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1306                              2);
1307         }
1308 }
1309
1310
1311 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1312                                 struct wpabuf *resp, u8 srv_trans_id,
1313                                 const u8 *query, size_t query_len)
1314 {
1315         struct p2p_srv_bonjour *bsrv;
1316         struct wpabuf buf;
1317         u8 *len_pos;
1318
1319         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1320                           query, query_len);
1321         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1322                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1323                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1324                                             srv_trans_id);
1325                 return;
1326         }
1327
1328         if (query_len == 0) {
1329                 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1330                 return;
1331         }
1332
1333         if (wpabuf_tailroom(resp) < 5)
1334                 return;
1335         /* Length (to be filled) */
1336         len_pos = wpabuf_put(resp, 2);
1337         wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1338         wpabuf_put_u8(resp, srv_trans_id);
1339
1340         wpabuf_set(&buf, query, query_len);
1341         bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1342         if (bsrv == NULL) {
1343                 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1344                            "available");
1345
1346                 /* Status Code */
1347                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1348                 /* Response Data: empty */
1349                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1350                              2);
1351                 return;
1352         }
1353
1354         /* Status Code */
1355         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1356         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1357                           wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1358
1359         if (wpabuf_tailroom(resp) >=
1360             wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1361                 /* Response Data */
1362                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1363                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1364         }
1365         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1366 }
1367
1368
1369 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1370                              struct wpabuf *resp, u8 srv_trans_id)
1371 {
1372         struct p2p_srv_upnp *usrv;
1373         u8 *len_pos;
1374
1375         wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1376
1377         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1378                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1379                 return;
1380         }
1381
1382         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1383                          struct p2p_srv_upnp, list) {
1384                 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1385                         return;
1386
1387                 /* Length (to be filled) */
1388                 len_pos = wpabuf_put(resp, 2);
1389                 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1390                 wpabuf_put_u8(resp, srv_trans_id);
1391
1392                 /* Status Code */
1393                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1394                 /* Response Data */
1395                 wpabuf_put_u8(resp, usrv->version);
1396                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1397                            usrv->service);
1398                 wpabuf_put_str(resp, usrv->service);
1399                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1400                              2);
1401         }
1402 }
1403
1404
1405 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1406                              struct wpabuf *resp, u8 srv_trans_id,
1407                              const u8 *query, size_t query_len)
1408 {
1409         struct p2p_srv_upnp *usrv;
1410         u8 *len_pos;
1411         u8 version;
1412         char *str;
1413         int count = 0;
1414
1415         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1416                           query, query_len);
1417
1418         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1419                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1420                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1421                                             srv_trans_id);
1422                 return;
1423         }
1424
1425         if (query_len == 0) {
1426                 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1427                 return;
1428         }
1429
1430         if (wpabuf_tailroom(resp) < 5)
1431                 return;
1432
1433         /* Length (to be filled) */
1434         len_pos = wpabuf_put(resp, 2);
1435         wpabuf_put_u8(resp, P2P_SERV_UPNP);
1436         wpabuf_put_u8(resp, srv_trans_id);
1437
1438         version = query[0];
1439         str = os_malloc(query_len);
1440         if (str == NULL)
1441                 return;
1442         os_memcpy(str, query + 1, query_len - 1);
1443         str[query_len - 1] = '\0';
1444
1445         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1446                          struct p2p_srv_upnp, list) {
1447                 if (version != usrv->version)
1448                         continue;
1449
1450                 if (os_strcmp(str, "ssdp:all") != 0 &&
1451                     os_strstr(usrv->service, str) == NULL)
1452                         continue;
1453
1454                 if (wpabuf_tailroom(resp) < 2)
1455                         break;
1456                 if (count == 0) {
1457                         /* Status Code */
1458                         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1459                         /* Response Data */
1460                         wpabuf_put_u8(resp, version);
1461                 } else
1462                         wpabuf_put_u8(resp, ',');
1463
1464                 count++;
1465
1466                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1467                            usrv->service);
1468                 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1469                         break;
1470                 wpabuf_put_str(resp, usrv->service);
1471         }
1472
1473         if (count == 0) {
1474                 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1475                            "available");
1476                 /* Status Code */
1477                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1478                 /* Response Data: empty */
1479         }
1480
1481         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1482 }
1483
1484
1485 void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1486                      u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1487 {
1488         struct wpa_supplicant *wpa_s = ctx;
1489         const u8 *pos = tlvs;
1490         const u8 *end = tlvs + tlvs_len;
1491         const u8 *tlv_end;
1492         u16 slen;
1493         struct wpabuf *resp;
1494         u8 srv_proto, srv_trans_id;
1495         size_t buf_len;
1496         char *buf;
1497
1498         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1499                     tlvs, tlvs_len);
1500         buf_len = 2 * tlvs_len + 1;
1501         buf = os_malloc(buf_len);
1502         if (buf) {
1503                 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1504                 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1505                              MACSTR " %u %u %s",
1506                              freq, MAC2STR(sa), dialog_token, update_indic,
1507                              buf);
1508                 os_free(buf);
1509         }
1510
1511         if (wpa_s->p2p_sd_over_ctrl_iface)
1512                 return; /* to be processed by an external program */
1513
1514         resp = wpabuf_alloc(10000);
1515         if (resp == NULL)
1516                 return;
1517
1518         while (pos + 1 < end) {
1519                 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1520                 slen = WPA_GET_LE16(pos);
1521                 pos += 2;
1522                 if (pos + slen > end || slen < 2) {
1523                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1524                                    "length");
1525                         wpabuf_free(resp);
1526                         return;
1527                 }
1528                 tlv_end = pos + slen;
1529
1530                 srv_proto = *pos++;
1531                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1532                            srv_proto);
1533                 srv_trans_id = *pos++;
1534                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1535                            srv_trans_id);
1536
1537                 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1538                             pos, tlv_end - pos);
1539
1540
1541                 if (wpa_s->force_long_sd) {
1542                         wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1543                                    "response");
1544                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1545                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1546                         goto done;
1547                 }
1548
1549                 switch (srv_proto) {
1550                 case P2P_SERV_ALL_SERVICES:
1551                         wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1552                                    "for all services");
1553                         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1554                             dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1555                                 wpa_printf(MSG_DEBUG, "P2P: No service "
1556                                            "discovery protocols available");
1557                                 wpas_sd_add_proto_not_avail(
1558                                         resp, P2P_SERV_ALL_SERVICES,
1559                                         srv_trans_id);
1560                                 break;
1561                         }
1562                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1563                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1564                         break;
1565                 case P2P_SERV_BONJOUR:
1566                         wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1567                                             pos, tlv_end - pos);
1568                         break;
1569                 case P2P_SERV_UPNP:
1570                         wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1571                                          pos, tlv_end - pos);
1572                         break;
1573                 default:
1574                         wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1575                                    "protocol %u", srv_proto);
1576                         wpas_sd_add_proto_not_avail(resp, srv_proto,
1577                                                     srv_trans_id);
1578                         break;
1579                 }
1580
1581                 pos = tlv_end;
1582         }
1583
1584 done:
1585         wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1586                                    update_indic, tlvs, tlvs_len);
1587
1588         wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1589
1590         wpabuf_free(resp);
1591 }
1592
1593
1594 void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1595                       const u8 *tlvs, size_t tlvs_len)
1596 {
1597         struct wpa_supplicant *wpa_s = ctx;
1598         const u8 *pos = tlvs;
1599         const u8 *end = tlvs + tlvs_len;
1600         const u8 *tlv_end;
1601         u16 slen;
1602         size_t buf_len;
1603         char *buf;
1604
1605         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1606                     tlvs, tlvs_len);
1607         if (tlvs_len > 1500) {
1608                 /* TODO: better way for handling this */
1609                 wpa_msg_ctrl(wpa_s, MSG_INFO,
1610                              P2P_EVENT_SERV_DISC_RESP MACSTR
1611                              " %u <long response: %u bytes>",
1612                              MAC2STR(sa), update_indic,
1613                              (unsigned int) tlvs_len);
1614         } else {
1615                 buf_len = 2 * tlvs_len + 1;
1616                 buf = os_malloc(buf_len);
1617                 if (buf) {
1618                         wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1619                         wpa_msg_ctrl(wpa_s, MSG_INFO,
1620                                      P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1621                                      MAC2STR(sa), update_indic, buf);
1622                         os_free(buf);
1623                 }
1624         }
1625
1626         while (pos < end) {
1627                 u8 srv_proto, srv_trans_id, status;
1628
1629                 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1630                 slen = WPA_GET_LE16(pos);
1631                 pos += 2;
1632                 if (pos + slen > end || slen < 3) {
1633                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1634                                    "length");
1635                         return;
1636                 }
1637                 tlv_end = pos + slen;
1638
1639                 srv_proto = *pos++;
1640                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1641                            srv_proto);
1642                 srv_trans_id = *pos++;
1643                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1644                            srv_trans_id);
1645                 status = *pos++;
1646                 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1647                            status);
1648
1649                 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1650                             pos, tlv_end - pos);
1651
1652                 pos = tlv_end;
1653         }
1654
1655         wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
1656 }
1657
1658
1659 void * wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1660                            const struct wpabuf *tlvs)
1661 {
1662         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1663                 return (void *) wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
1664         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1665                 return NULL;
1666         return p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1667 }
1668
1669
1670 void * wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1671                                 u8 version, const char *query)
1672 {
1673         struct wpabuf *tlvs;
1674         void *ret;
1675
1676         tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1677         if (tlvs == NULL)
1678                 return NULL;
1679         wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1680         wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1681         wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1682         wpabuf_put_u8(tlvs, version);
1683         wpabuf_put_str(tlvs, query);
1684         ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1685         wpabuf_free(tlvs);
1686         return ret;
1687 }
1688
1689
1690 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, void *req)
1691 {
1692         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1693                 return wpa_drv_p2p_sd_cancel_request(wpa_s, (u64) req);
1694         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1695                 return -1;
1696         return p2p_sd_cancel_request(wpa_s->global->p2p, req);
1697 }
1698
1699
1700 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1701                           const u8 *dst, u8 dialog_token,
1702                           const struct wpabuf *resp_tlvs)
1703 {
1704         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1705                 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1706                                         resp_tlvs);
1707                 return;
1708         }
1709         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1710                 return;
1711         p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1712                         resp_tlvs);
1713 }
1714
1715
1716 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1717 {
1718         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1719                 wpa_drv_p2p_service_update(wpa_s);
1720                 return;
1721         }
1722         if (wpa_s->global->p2p)
1723                 p2p_sd_service_update(wpa_s->global->p2p);
1724 }
1725
1726
1727 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1728 {
1729         dl_list_del(&bsrv->list);
1730         wpabuf_free(bsrv->query);
1731         wpabuf_free(bsrv->resp);
1732         os_free(bsrv);
1733 }
1734
1735
1736 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1737 {
1738         dl_list_del(&usrv->list);
1739         os_free(usrv->service);
1740         os_free(usrv);
1741 }
1742
1743
1744 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1745 {
1746         struct p2p_srv_bonjour *bsrv, *bn;
1747         struct p2p_srv_upnp *usrv, *un;
1748
1749         dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1750                               struct p2p_srv_bonjour, list)
1751                 wpas_p2p_srv_bonjour_free(bsrv);
1752
1753         dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1754                               struct p2p_srv_upnp, list)
1755                 wpas_p2p_srv_upnp_free(usrv);
1756
1757         wpas_p2p_sd_service_update(wpa_s);
1758 }
1759
1760
1761 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1762                                  struct wpabuf *query, struct wpabuf *resp)
1763 {
1764         struct p2p_srv_bonjour *bsrv;
1765
1766         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1767         if (bsrv) {
1768                 wpabuf_free(query);
1769                 wpabuf_free(bsrv->resp);
1770                 bsrv->resp = resp;
1771                 return 0;
1772         }
1773
1774         bsrv = os_zalloc(sizeof(*bsrv));
1775         if (bsrv == NULL)
1776                 return -1;
1777         bsrv->query = query;
1778         bsrv->resp = resp;
1779         dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1780
1781         wpas_p2p_sd_service_update(wpa_s);
1782         return 0;
1783 }
1784
1785
1786 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1787                                  const struct wpabuf *query)
1788 {
1789         struct p2p_srv_bonjour *bsrv;
1790
1791         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1792         if (bsrv == NULL)
1793                 return -1;
1794         wpas_p2p_srv_bonjour_free(bsrv);
1795         wpas_p2p_sd_service_update(wpa_s);
1796         return 0;
1797 }
1798
1799
1800 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1801                               const char *service)
1802 {
1803         struct p2p_srv_upnp *usrv;
1804
1805         if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1806                 return 0; /* Already listed */
1807         usrv = os_zalloc(sizeof(*usrv));
1808         if (usrv == NULL)
1809                 return -1;
1810         usrv->version = version;
1811         usrv->service = os_strdup(service);
1812         if (usrv->service == NULL) {
1813                 os_free(usrv);
1814                 return -1;
1815         }
1816         dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1817
1818         wpas_p2p_sd_service_update(wpa_s);
1819         return 0;
1820 }
1821
1822
1823 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1824                               const char *service)
1825 {
1826         struct p2p_srv_upnp *usrv;
1827
1828         usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1829         if (usrv == NULL)
1830                 return -1;
1831         wpas_p2p_srv_upnp_free(usrv);
1832         wpas_p2p_sd_service_update(wpa_s);
1833         return 0;
1834 }
1835
1836
1837 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
1838                                          const u8 *peer, const char *params,
1839                                          unsigned int generated_pin)
1840 {
1841         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
1842                 MAC2STR(peer), generated_pin, params);
1843 }
1844
1845
1846 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1847                                         const u8 *peer, const char *params)
1848 {
1849         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1850                 MAC2STR(peer), params);
1851 }
1852
1853
1854 void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1855                         const u8 *dev_addr, const u8 *pri_dev_type,
1856                         const char *dev_name, u16 supp_config_methods,
1857                         u8 dev_capab, u8 group_capab)
1858 {
1859         struct wpa_supplicant *wpa_s = ctx;
1860         char devtype[WPS_DEV_TYPE_BUFSIZE];
1861         char params[200];
1862         u8 empty_dev_type[8];
1863         unsigned int generated_pin = 0;
1864
1865         if (pri_dev_type == NULL) {
1866                 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1867                 pri_dev_type = empty_dev_type;
1868         }
1869         os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1870                     " pri_dev_type=%s name='%s' config_methods=0x%x "
1871                     "dev_capab=0x%x group_capab=0x%x",
1872                     MAC2STR(dev_addr),
1873                     wps_dev_type_bin2str(pri_dev_type, devtype,
1874                                          sizeof(devtype)),
1875                     dev_name, supp_config_methods, dev_capab, group_capab);
1876         params[sizeof(params) - 1] = '\0';
1877
1878         if (config_methods & WPS_CONFIG_DISPLAY) {
1879                 generated_pin = wps_generate_pin();
1880                 wpas_prov_disc_local_display(wpa_s, peer, params,
1881                                              generated_pin);
1882         } else if (config_methods & WPS_CONFIG_KEYPAD)
1883                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1884         else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1885                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1886                         "%s", MAC2STR(peer), params);
1887 }
1888
1889
1890 void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1891 {
1892         struct wpa_supplicant *wpa_s = ctx;
1893         unsigned int generated_pin = 0;
1894
1895         if (config_methods & WPS_CONFIG_DISPLAY)
1896                 wpas_prov_disc_local_keypad(wpa_s, peer, "");
1897         else if (config_methods & WPS_CONFIG_KEYPAD) {
1898                 generated_pin = wps_generate_pin();
1899                 wpas_prov_disc_local_display(wpa_s, peer, "", generated_pin);
1900         } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1901                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1902                         MAC2STR(peer));
1903
1904         if (wpa_s->pending_pd_before_join &&
1905             (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1906              os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
1907                 wpa_s->pending_pd_before_join = 0;
1908                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
1909                            "join-existing-group operation");
1910                 wpas_p2p_join_start(wpa_s);
1911         }
1912 }
1913
1914
1915 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1916                                   const u8 *go_dev_addr, const u8 *ssid,
1917                                   size_t ssid_len, int *go, u8 *group_bssid,
1918                                   int *force_freq, int persistent_group)
1919 {
1920         struct wpa_supplicant *wpa_s = ctx;
1921         struct wpa_ssid *s;
1922         u8 cur_bssid[ETH_ALEN];
1923         int res;
1924         struct wpa_supplicant *grp;
1925
1926         if (!persistent_group) {
1927                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1928                            " to join an active group", MAC2STR(sa));
1929                 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
1930                     (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
1931                      == 0 ||
1932                      os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
1933                         wpa_printf(MSG_DEBUG, "P2P: Accept previously "
1934                                    "authorized invitation");
1935                         goto accept_inv;
1936                 }
1937                 /*
1938                  * Do not accept the invitation automatically; notify user and
1939                  * request approval.
1940                  */
1941                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1942         }
1943
1944         grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
1945         if (grp) {
1946                 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
1947                            "running persistent group");
1948                 if (*go)
1949                         os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
1950                 goto accept_inv;
1951         }
1952
1953         if (!wpa_s->conf->persistent_reconnect)
1954                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1955
1956         for (s = wpa_s->conf->ssid; s; s = s->next) {
1957                 if (s->disabled == 2 &&
1958                     os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
1959                     s->ssid_len == ssid_len &&
1960                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
1961                         break;
1962         }
1963
1964         if (!s) {
1965                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1966                            " requested reinvocation of an unknown group",
1967                            MAC2STR(sa));
1968                 return P2P_SC_FAIL_UNKNOWN_GROUP;
1969         }
1970
1971         if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
1972                 *go = 1;
1973                 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1974                         wpa_printf(MSG_DEBUG, "P2P: The only available "
1975                                    "interface is already in use - reject "
1976                                    "invitation");
1977                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1978                 }
1979                 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
1980         } else if (s->mode == WPAS_MODE_P2P_GO) {
1981                 *go = 1;
1982                 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
1983                 {
1984                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
1985                                    "interface address for the group");
1986                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1987                 }
1988                 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
1989                           ETH_ALEN);
1990         }
1991
1992 accept_inv:
1993         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
1994             wpa_s->assoc_freq) {
1995                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1996                            "the channel we are already using");
1997                 *force_freq = wpa_s->assoc_freq;
1998         }
1999
2000         res = wpa_drv_shared_freq(wpa_s);
2001         if (res > 0) {
2002                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2003                            "with the channel we are already using on a "
2004                            "shared interface");
2005                 *force_freq = res;
2006         }
2007
2008         return P2P_SC_SUCCESS;
2009 }
2010
2011
2012 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2013                                      const u8 *ssid, size_t ssid_len,
2014                                      const u8 *go_dev_addr, u8 status,
2015                                      int op_freq)
2016 {
2017         struct wpa_supplicant *wpa_s = ctx;
2018         struct wpa_ssid *s;
2019
2020         for (s = wpa_s->conf->ssid; s; s = s->next) {
2021                 if (s->disabled == 2 &&
2022                     s->ssid_len == ssid_len &&
2023                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
2024                         break;
2025         }
2026
2027         if (status == P2P_SC_SUCCESS) {
2028                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2029                            " was accepted; op_freq=%d MHz",
2030                            MAC2STR(sa), op_freq);
2031                 if (s) {
2032                         wpas_p2p_group_add_persistent(
2033                                 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
2034                 } else if (bssid) {
2035                         wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2036                                       wpa_s->p2p_wps_method);
2037                 }
2038                 return;
2039         }
2040
2041         if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2042                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2043                            " was rejected (status %u)", MAC2STR(sa), status);
2044                 return;
2045         }
2046
2047         if (!s) {
2048                 if (bssid) {
2049                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2050                                 "sa=" MACSTR " go_dev_addr=" MACSTR
2051                                 " bssid=" MACSTR " unknown-network",
2052                                 MAC2STR(sa), MAC2STR(go_dev_addr),
2053                                 MAC2STR(bssid));
2054                 } else {
2055                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2056                                 "sa=" MACSTR " go_dev_addr=" MACSTR
2057                                 " unknown-network",
2058                                 MAC2STR(sa), MAC2STR(go_dev_addr));
2059                 }
2060                 return;
2061         }
2062
2063         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
2064                 " persistent=%d", MAC2STR(sa), s->id);
2065 }
2066
2067
2068 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
2069 {
2070         struct wpa_supplicant *wpa_s = ctx;
2071         struct wpa_ssid *ssid;
2072
2073         if (bssid) {
2074                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2075                         "status=%d " MACSTR,
2076                         status, MAC2STR(bssid));
2077         } else {
2078                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2079                         "status=%d ", status);
2080         }
2081         wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2082
2083         if (wpa_s->pending_invite_ssid_id == -1)
2084                 return; /* Invitation to active group */
2085
2086         if (status != P2P_SC_SUCCESS) {
2087                 wpas_p2p_remove_pending_group_interface(wpa_s);
2088                 return;
2089         }
2090
2091         ssid = wpa_config_get_network(wpa_s->conf,
2092                                       wpa_s->pending_invite_ssid_id);
2093         if (ssid == NULL) {
2094                 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2095                            "data matching with invitation");
2096                 return;
2097         }
2098
2099         wpas_p2p_group_add_persistent(wpa_s, ssid,
2100                                       ssid->mode == WPAS_MODE_P2P_GO, 0);
2101 }
2102
2103
2104 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2105                                      struct p2p_channels *chan)
2106 {
2107         int i, cla = 0;
2108
2109         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2110                    "band");
2111
2112         /* Operating class 81 - 2.4 GHz band channels 1..13 */
2113         chan->reg_class[cla].reg_class = 81;
2114         chan->reg_class[cla].channels = 11;
2115         for (i = 0; i < 11; i++)
2116                 chan->reg_class[cla].channel[i] = i + 1;
2117         cla++;
2118
2119         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2120                    "band");
2121
2122         /* Operating class 115 - 5 GHz, channels 36-48 */
2123         chan->reg_class[cla].reg_class = 115;
2124         chan->reg_class[cla].channels = 4;
2125         chan->reg_class[cla].channel[0] = 36;
2126         chan->reg_class[cla].channel[1] = 40;
2127         chan->reg_class[cla].channel[2] = 44;
2128         chan->reg_class[cla].channel[3] = 48;
2129         cla++;
2130
2131         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2132                    "band");
2133
2134         /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2135         chan->reg_class[cla].reg_class = 124;
2136         chan->reg_class[cla].channels = 4;
2137         chan->reg_class[cla].channel[0] = 149;
2138         chan->reg_class[cla].channel[1] = 153;
2139         chan->reg_class[cla].channel[2] = 157;
2140         chan->reg_class[cla].channel[3] = 161;
2141         cla++;
2142
2143         chan->reg_classes = cla;
2144         return 0;
2145 }
2146
2147
2148 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2149                                           u16 num_modes,
2150                                           enum hostapd_hw_mode mode)
2151 {
2152         u16 i;
2153
2154         for (i = 0; i < num_modes; i++) {
2155                 if (modes[i].mode == mode)
2156                         return &modes[i];
2157         }
2158
2159         return NULL;
2160 }
2161
2162
2163 static int has_channel(struct hostapd_hw_modes *mode, u8 chan, int *flags)
2164 {
2165         int i;
2166
2167         for (i = 0; i < mode->num_channels; i++) {
2168                 if (mode->channels[i].chan == chan) {
2169                         if (flags)
2170                                 *flags = mode->channels[i].flag;
2171                         return !(mode->channels[i].flag &
2172                                  (HOSTAPD_CHAN_DISABLED |
2173                                   HOSTAPD_CHAN_PASSIVE_SCAN |
2174                                   HOSTAPD_CHAN_NO_IBSS |
2175                                   HOSTAPD_CHAN_RADAR));
2176                 }
2177         }
2178
2179         return 0;
2180 }
2181
2182
2183 struct p2p_oper_class_map {
2184         enum hostapd_hw_mode mode;
2185         u8 op_class;
2186         u8 min_chan;
2187         u8 max_chan;
2188         u8 inc;
2189         enum { BW20, BW40PLUS, BW40MINUS } bw;
2190 };
2191
2192 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
2193                                    struct p2p_channels *chan)
2194 {
2195         struct hostapd_hw_modes *modes, *mode;
2196         u16 num_modes, flags;
2197         int cla, op;
2198         struct p2p_oper_class_map op_class[] = {
2199                 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2200                 { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 },
2201 #if 0 /* Do not enable HT40 on 2 GHz for now */
2202                 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2203                 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2204 #endif
2205                 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2206                 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2207                 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2208                 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2209                 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2210                 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2211                 { -1, 0, 0, 0, 0, BW20 }
2212         };
2213
2214         modes = wpa_drv_get_hw_feature_data(wpa_s, &num_modes, &flags);
2215         if (modes == NULL) {
2216                 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2217                            "of all supported channels; assume dualband "
2218                            "support");
2219                 return wpas_p2p_default_channels(wpa_s, chan);
2220         }
2221
2222         cla = 0;
2223
2224         for (op = 0; op_class[op].op_class; op++) {
2225                 struct p2p_oper_class_map *o = &op_class[op];
2226                 u8 ch;
2227                 struct p2p_reg_class *reg = NULL;
2228
2229                 mode = get_mode(modes, num_modes, o->mode);
2230                 if (mode == NULL)
2231                         continue;
2232                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2233                         int flag;
2234                         if (!has_channel(mode, ch, &flag))
2235                                 continue;
2236                         if (o->bw == BW40MINUS &&
2237                             (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2238                              !has_channel(mode, ch - 4, NULL)))
2239                                 continue;
2240                         if (o->bw == BW40PLUS &&
2241                             (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2242                              !has_channel(mode, ch + 4, NULL)))
2243                                 continue;
2244                         if (reg == NULL) {
2245                                 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2246                                            "class %u", o->op_class);
2247                                 reg = &chan->reg_class[cla];
2248                                 cla++;
2249                                 reg->reg_class = o->op_class;
2250                         }
2251                         reg->channel[reg->channels] = ch;
2252                         reg->channels++;
2253                 }
2254                 if (reg) {
2255                         wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2256                                     reg->channel, reg->channels);
2257                 }
2258         }
2259
2260         chan->reg_classes = cla;
2261
2262         ieee80211_sta_free_hw_features(modes, num_modes);
2263
2264         return 0;
2265 }
2266
2267
2268 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2269                         size_t buf_len)
2270 {
2271         struct wpa_supplicant *wpa_s = ctx;
2272
2273         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2274                 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2275                         break;
2276         }
2277         if (wpa_s == NULL)
2278                 return -1;
2279
2280         return wpa_drv_get_noa(wpa_s, buf, buf_len);
2281 }
2282
2283
2284 /**
2285  * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2286  * @global: Pointer to global data from wpa_supplicant_init()
2287  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2288  * Returns: 0 on success, -1 on failure
2289  */
2290 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2291 {
2292         struct p2p_config p2p;
2293         unsigned int r;
2294         int i;
2295
2296         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2297                 return 0;
2298
2299 #ifdef CONFIG_CLIENT_MLME
2300         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)) {
2301                 wpa_s->mlme.public_action_cb = p2p_rx_action_mlme;
2302                 wpa_s->mlme.public_action_cb_ctx = wpa_s;
2303         }
2304 #endif /* CONFIG_CLIENT_MLME */
2305
2306         if (wpa_drv_disable_11b_rates(wpa_s, 1) < 0) {
2307                 wpa_printf(MSG_DEBUG, "P2P: Failed to disable 11b rates");
2308                 /* Continue anyway; this is not really a fatal error */
2309         }
2310
2311         if (global->p2p)
2312                 return 0;
2313
2314         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2315                 struct p2p_params params;
2316
2317                 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2318                 os_memset(&params, 0, sizeof(params));
2319                 params.dev_name = wpa_s->conf->device_name;
2320                 if (wpa_s->conf->device_type &&
2321                     wps_dev_type_str2bin(wpa_s->conf->device_type,
2322                                          params.pri_dev_type) < 0) {
2323                         wpa_printf(MSG_ERROR, "P2P: Invalid device_type");
2324                         return -1;
2325                 }
2326                 for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
2327                         if (wpa_s->conf->sec_device_type[i] == NULL)
2328                                 continue;
2329                         if (wps_dev_type_str2bin(
2330                                     wpa_s->conf->sec_device_type[i],
2331                                     params.sec_dev_type[
2332                                             params.num_sec_dev_types]) < 0) {
2333                                 wpa_printf(MSG_ERROR, "P2P: Invalid "
2334                                            "sec_device_type");
2335                                 return -1;
2336                         }
2337                         params.num_sec_dev_types++;
2338                         if (params.num_sec_dev_types == DRV_MAX_SEC_DEV_TYPES)
2339                                 break;
2340                 }
2341                 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
2342                         return -1;
2343
2344                 return 0;
2345         }
2346
2347         os_memset(&p2p, 0, sizeof(p2p));
2348         p2p.msg_ctx = wpa_s;
2349         p2p.cb_ctx = wpa_s;
2350         p2p.p2p_scan = wpas_p2p_scan;
2351         p2p.send_action = wpas_send_action;
2352         p2p.send_action_done = wpas_send_action_done;
2353         p2p.go_neg_completed = wpas_go_neg_completed;
2354         p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2355         p2p.dev_found = wpas_dev_found;
2356         p2p.dev_lost = wpas_dev_lost;
2357         p2p.start_listen = wpas_start_listen;
2358         p2p.stop_listen = wpas_stop_listen;
2359         p2p.send_probe_resp = wpas_send_probe_resp;
2360         p2p.sd_request = wpas_sd_request;
2361         p2p.sd_response = wpas_sd_response;
2362         p2p.prov_disc_req = wpas_prov_disc_req;
2363         p2p.prov_disc_resp = wpas_prov_disc_resp;
2364         p2p.invitation_process = wpas_invitation_process;
2365         p2p.invitation_received = wpas_invitation_received;
2366         p2p.invitation_result = wpas_invitation_result;
2367         p2p.get_noa = wpas_get_noa;
2368
2369         os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2370         os_memcpy(p2p.dev_addr, wpa_s->own_addr, ETH_ALEN);
2371         p2p.dev_name = wpa_s->conf->device_name;
2372
2373         if (wpa_s->conf->p2p_listen_reg_class &&
2374             wpa_s->conf->p2p_listen_channel) {
2375                 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2376                 p2p.channel = wpa_s->conf->p2p_listen_channel;
2377         } else {
2378                 p2p.reg_class = 81;
2379                 /*
2380                  * Pick one of the social channels randomly as the listen
2381                  * channel.
2382                  */
2383                 os_get_random((u8 *) &r, sizeof(r));
2384                 p2p.channel = 1 + (r % 3) * 5;
2385         }
2386         wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
2387
2388         if (wpa_s->conf->p2p_oper_reg_class &&
2389             wpa_s->conf->p2p_oper_channel) {
2390                 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2391                 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2392                 p2p.cfg_op_channel = 1;
2393                 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2394                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
2395
2396         } else {
2397                 p2p.op_reg_class = 81;
2398                 /*
2399                  * Use random operation channel from (1, 6, 11) if no other
2400                  * preference is indicated.
2401                  */
2402                 os_get_random((u8 *) &r, sizeof(r));
2403                 p2p.op_channel = 1 + (r % 3) * 5;
2404                 p2p.cfg_op_channel = 0;
2405                 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2406                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
2407         }
2408         if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2409                 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2410                 p2p.country[2] = 0x04;
2411         } else
2412                 os_memcpy(p2p.country, "XX\x04", 3);
2413
2414         if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
2415                 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2416                            "channel list");
2417                 return -1;
2418         }
2419
2420         if (wpa_s->conf->device_type &&
2421             wps_dev_type_str2bin(wpa_s->conf->device_type, p2p.pri_dev_type) <
2422             0) {
2423                 wpa_printf(MSG_ERROR, "P2P: Invalid device_type");
2424                 return -1;
2425         }
2426
2427         for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
2428                 if (wpa_s->conf->sec_device_type[i] == NULL)
2429                         continue;
2430                 if (wps_dev_type_str2bin(
2431                             wpa_s->conf->sec_device_type[i],
2432                             p2p.sec_dev_type[p2p.num_sec_dev_types]) < 0) {
2433                         wpa_printf(MSG_ERROR, "P2P: Invalid sec_device_type");
2434                         return -1;
2435                 }
2436                 p2p.num_sec_dev_types++;
2437                 if (p2p.num_sec_dev_types == P2P_SEC_DEVICE_TYPES)
2438                         break;
2439         }
2440
2441         p2p.concurrent_operations = !!(wpa_s->drv_flags &
2442                                        WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2443
2444         p2p.max_peers = 100;
2445
2446         if (wpa_s->conf->p2p_ssid_postfix) {
2447                 p2p.ssid_postfix_len =
2448                         os_strlen(wpa_s->conf->p2p_ssid_postfix);
2449                 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2450                         p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2451                 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2452                           p2p.ssid_postfix_len);
2453         }
2454
2455         p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2456
2457         global->p2p = p2p_init(&p2p);
2458         if (global->p2p == NULL)
2459                 return -1;
2460
2461         return 0;
2462 }
2463
2464
2465 /**
2466  * wpas_p2p_deinit - Deinitialize per-interface P2P data
2467  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2468  *
2469  * This function deinitialize per-interface P2P data.
2470  */
2471 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2472 {
2473         if (wpa_s->driver && wpa_s->drv_priv)
2474                 wpa_drv_probe_req_report(wpa_s, 0);
2475         os_free(wpa_s->go_params);
2476         wpa_s->go_params = NULL;
2477         wpabuf_free(wpa_s->pending_action_tx);
2478         wpa_s->pending_action_tx = NULL;
2479         eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
2480         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2481         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2482         wpa_s->p2p_long_listen = 0;
2483         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2484         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
2485         wpas_p2p_remove_pending_group_interface(wpa_s);
2486
2487         /* TODO: remove group interface from the driver if this wpa_s instance
2488          * is on top of a P2P group interface */
2489 }
2490
2491
2492 /**
2493  * wpas_p2p_deinit_global - Deinitialize global P2P module
2494  * @global: Pointer to global data from wpa_supplicant_init()
2495  *
2496  * This function deinitializes the global (per device) P2P module.
2497  */
2498 void wpas_p2p_deinit_global(struct wpa_global *global)
2499 {
2500         struct wpa_supplicant *wpa_s, *tmp;
2501         char *ifname;
2502
2503         if (global->p2p == NULL)
2504                 return;
2505
2506         /* Remove remaining P2P group interfaces */
2507         wpa_s = global->ifaces;
2508         if (wpa_s)
2509                 wpas_p2p_service_flush(wpa_s);
2510         while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2511                 wpa_s = wpa_s->next;
2512         while (wpa_s) {
2513                 enum wpa_driver_if_type type;
2514                 tmp = global->ifaces;
2515                 while (tmp &&
2516                        (tmp == wpa_s ||
2517                         tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2518                         tmp = tmp->next;
2519                 }
2520                 if (tmp == NULL)
2521                         break;
2522                 ifname = os_strdup(tmp->ifname);
2523                 type = wpas_p2p_if_type(tmp->p2p_group_interface);
2524                 wpa_supplicant_remove_iface(global, tmp);
2525                 if (ifname)
2526                         wpa_drv_if_remove(wpa_s, type, ifname);
2527                 os_free(ifname);
2528         }
2529
2530         /*
2531          * Deinit GO data on any possibly remaining interface (if main
2532          * interface is used as GO).
2533          */
2534         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2535                 if (wpa_s->ap_iface)
2536                         wpas_p2p_group_deinit(wpa_s);
2537         }
2538
2539         p2p_deinit(global->p2p);
2540         global->p2p = NULL;
2541 }
2542
2543
2544 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2545 {
2546         if (wpa_s->drv_flags &
2547             (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2548              WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
2549                 return 1; /* P2P group requires a new interface in every case
2550                            */
2551         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2552                 return 0; /* driver does not support concurrent operations */
2553         if (wpa_s->global->ifaces->next)
2554                 return 1; /* more that one interface already in use */
2555         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2556                 return 1; /* this interface is already in use */
2557         return 0;
2558 }
2559
2560
2561 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2562                                  const u8 *peer_addr,
2563                                  enum p2p_wps_method wps_method,
2564                                  int go_intent, const u8 *own_interface_addr,
2565                                  unsigned int force_freq, int persistent_group)
2566 {
2567         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2568                 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2569                                            go_intent, own_interface_addr,
2570                                            force_freq, persistent_group);
2571         }
2572
2573         return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2574                            go_intent, own_interface_addr, force_freq,
2575                            persistent_group);
2576 }
2577
2578
2579 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2580                                 const u8 *peer_addr,
2581                                 enum p2p_wps_method wps_method,
2582                                 int go_intent, const u8 *own_interface_addr,
2583                                 unsigned int force_freq, int persistent_group)
2584 {
2585         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2586                 return -1;
2587
2588         return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2589                              go_intent, own_interface_addr, force_freq,
2590                              persistent_group);
2591 }
2592
2593
2594 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
2595 {
2596         wpa_s->p2p_join_scan_count++;
2597         wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
2598                    wpa_s->p2p_join_scan_count);
2599         if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
2600                 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
2601                            " for join operationg - stop join attempt",
2602                            MAC2STR(wpa_s->pending_join_iface_addr));
2603                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2604                 wpa_msg(wpa_s->parent, MSG_INFO,
2605                         P2P_EVENT_GROUP_FORMATION_FAILURE);
2606         }
2607 }
2608
2609
2610 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2611                                    struct wpa_scan_results *scan_res)
2612 {
2613         struct wpa_bss *bss;
2614         int freq;
2615         u8 iface_addr[ETH_ALEN];
2616
2617         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2618
2619         if (wpa_s->global->p2p_disabled)
2620                 return;
2621
2622         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2623                    scan_res ? (int) scan_res->num : -1);
2624
2625         if (scan_res)
2626                 wpas_p2p_scan_res_handler(wpa_s, scan_res);
2627
2628         freq = p2p_get_oper_freq(wpa_s->global->p2p,
2629                                  wpa_s->pending_join_iface_addr);
2630         if (freq < 0 &&
2631             p2p_get_interface_addr(wpa_s->global->p2p,
2632                                    wpa_s->pending_join_dev_addr,
2633                                    iface_addr) == 0 &&
2634             os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
2635         {
2636                 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
2637                            "address for join from " MACSTR " to " MACSTR
2638                            " based on newly discovered P2P peer entry",
2639                            MAC2STR(wpa_s->pending_join_iface_addr),
2640                            MAC2STR(iface_addr));
2641                 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
2642                           ETH_ALEN);
2643
2644                 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2645                                          wpa_s->pending_join_iface_addr);
2646         }
2647         if (freq >= 0) {
2648                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2649                            "from P2P peer table: %d MHz", freq);
2650         }
2651         bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
2652         if (bss) {
2653                 freq = bss->freq;
2654                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2655                            "from BSS table: %d MHz", freq);
2656         }
2657         if (freq > 0) {
2658                 u16 method;
2659
2660                 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2661                            "prior to joining an existing group (GO " MACSTR
2662                            " freq=%u MHz)",
2663                            MAC2STR(wpa_s->pending_join_dev_addr), freq);
2664                 wpa_s->pending_pd_before_join = 1;
2665
2666                 switch (wpa_s->pending_join_wps_method) {
2667                 case WPS_PIN_LABEL:
2668                 case WPS_PIN_DISPLAY:
2669                         method = WPS_CONFIG_KEYPAD;
2670                         break;
2671                 case WPS_PIN_KEYPAD:
2672                         method = WPS_CONFIG_DISPLAY;
2673                         break;
2674                 case WPS_PBC:
2675                         method = WPS_CONFIG_PUSHBUTTON;
2676                         break;
2677                 default:
2678                         method = 0;
2679                         break;
2680                 }
2681
2682                 if (p2p_prov_disc_req(wpa_s->global->p2p,
2683                                       wpa_s->pending_join_dev_addr, method, 1)
2684                     < 0) {
2685                         wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2686                                    "Discovery Request before joining an "
2687                                    "existing group");
2688                         wpa_s->pending_pd_before_join = 0;
2689                         goto start;
2690                 }
2691
2692                 /*
2693                  * Actual join operation will be started from the Action frame
2694                  * TX status callback.
2695                  */
2696                 return;
2697         }
2698
2699         wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
2700         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2701         eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2702         wpas_p2p_check_join_scan_limit(wpa_s);
2703         return;
2704
2705 start:
2706         /* Start join operation immediately */
2707         wpas_p2p_join_start(wpa_s);
2708 }
2709
2710
2711 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2712 {
2713         struct wpa_supplicant *wpa_s = eloop_ctx;
2714         int ret;
2715         struct wpa_driver_scan_params params;
2716         struct wpabuf *wps_ie, *ies;
2717
2718         os_memset(&params, 0, sizeof(params));
2719
2720         /* P2P Wildcard SSID */
2721         params.num_ssids = 1;
2722         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2723         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2724
2725         wpa_s->wps->dev.p2p = 1;
2726         wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
2727                                         WPS_REQ_ENROLLEE);
2728         if (wps_ie == NULL) {
2729                 wpas_p2p_scan_res_join(wpa_s, NULL);
2730                 return;
2731         }
2732
2733         ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
2734         if (ies == NULL) {
2735                 wpabuf_free(wps_ie);
2736                 wpas_p2p_scan_res_join(wpa_s, NULL);
2737                 return;
2738         }
2739         wpabuf_put_buf(ies, wps_ie);
2740         wpabuf_free(wps_ie);
2741
2742         p2p_scan_ie(wpa_s->global->p2p, ies);
2743
2744         params.extra_ies = wpabuf_head(ies);
2745         params.extra_ies_len = wpabuf_len(ies);
2746
2747         /*
2748          * Run a scan to update BSS table and start Provision Discovery once
2749          * the new scan results become available.
2750          */
2751         wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
2752         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
2753                 ret = ieee80211_sta_req_scan(wpa_s, &params);
2754         else
2755                 ret = wpa_drv_scan(wpa_s, &params);
2756
2757         wpabuf_free(ies);
2758
2759         if (ret) {
2760                 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2761                            "try again later");
2762                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2763                 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2764                 wpas_p2p_check_join_scan_limit(wpa_s);
2765         }
2766 }
2767
2768
2769 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2770                          const u8 *dev_addr, enum p2p_wps_method wps_method)
2771 {
2772         wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2773                    MACSTR " dev " MACSTR ")",
2774                    MAC2STR(iface_addr), MAC2STR(dev_addr));
2775
2776         os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2777         os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2778         wpa_s->pending_join_wps_method = wps_method;
2779
2780         /* Make sure we are not running find during connection establishment */
2781         wpas_p2p_stop_find(wpa_s);
2782
2783         wpa_s->p2p_join_scan_count = 0;
2784         wpas_p2p_join_scan(wpa_s, NULL);
2785         return 0;
2786 }
2787
2788
2789 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2790 {
2791         struct wpa_supplicant *group;
2792         struct p2p_go_neg_results res;
2793
2794         group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2795         if (group == NULL)
2796                 return -1;
2797         if (group != wpa_s) {
2798                 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2799                           sizeof(group->p2p_pin));
2800                 group->p2p_wps_method = wpa_s->p2p_wps_method;
2801         }
2802
2803         group->p2p_in_provisioning = 1;
2804
2805         os_memset(&res, 0, sizeof(res));
2806         os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2807                   ETH_ALEN);
2808         res.wps_method = wpa_s->pending_join_wps_method;
2809         wpas_start_wps_enrollee(group, &res);
2810
2811         /*
2812          * Allow a longer timeout for join-a-running-group than normal 15
2813          * second group formation timeout since the GO may not have authorized
2814          * our connection yet.
2815          */
2816         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2817         eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
2818                                wpa_s, NULL);
2819
2820         return 0;
2821 }
2822
2823
2824 /**
2825  * wpas_p2p_connect - Request P2P Group Formation to be started
2826  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2827  * @peer_addr: Address of the peer P2P Device
2828  * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2829  * @persistent_group: Whether to create a persistent group
2830  * @join: Whether to join an existing group (as a client) instead of starting
2831  *      Group Owner negotiation; @peer_addr is BSSID in that case
2832  * @auth: Whether to only authorize the connection instead of doing that and
2833  *      initiating Group Owner negotiation
2834  * @go_intent: GO Intent or -1 to use default
2835  * @freq: Frequency for the group or 0 for auto-selection
2836  * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
2837  *      failure, -2 on failure due to channel not currently available,
2838  *      -3 if forced channel is not supported
2839  */
2840 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2841                      const char *pin, enum p2p_wps_method wps_method,
2842                      int persistent_group, int join, int auth, int go_intent,
2843                      int freq)
2844 {
2845         int force_freq = 0, oper_freq = 0;
2846         u8 bssid[ETH_ALEN];
2847         int ret = 0;
2848         enum wpa_driver_if_type iftype;
2849
2850         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2851                 return -1;
2852
2853         if (go_intent < 0)
2854                 go_intent = wpa_s->conf->p2p_go_intent;
2855
2856         if (!auth)
2857                 wpa_s->p2p_long_listen = 0;
2858
2859         wpa_s->p2p_wps_method = wps_method;
2860
2861         if (pin)
2862                 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2863         else if (wps_method == WPS_PIN_DISPLAY) {
2864                 ret = wps_generate_pin();
2865                 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2866                             ret);
2867                 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2868                            wpa_s->p2p_pin);
2869         } else
2870                 wpa_s->p2p_pin[0] = '\0';
2871
2872         if (join) {
2873                 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
2874                 if (auth) {
2875                         wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2876                                    "connect a running group from " MACSTR,
2877                                    MAC2STR(peer_addr));
2878                         os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2879                         return ret;
2880                 }
2881                 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
2882                 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
2883                                            iface_addr) < 0) {
2884                         os_memcpy(iface_addr, peer_addr, ETH_ALEN);
2885                         p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
2886                                          dev_addr);
2887                 }
2888                 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) <
2889                     0)
2890                         return -1;
2891                 return ret;
2892         }
2893
2894         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2895             wpa_s->assoc_freq)
2896                 oper_freq = wpa_s->assoc_freq;
2897         else {
2898                 oper_freq = wpa_drv_shared_freq(wpa_s);
2899                 if (oper_freq < 0)
2900                         oper_freq = 0;
2901         }
2902
2903         if (freq > 0) {
2904                 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
2905                         wpa_printf(MSG_DEBUG, "P2P: The forced channel "
2906                                    "(%u MHz) is not supported for P2P uses",
2907                                    freq);
2908                         return -3;
2909                 }
2910
2911                 if (oper_freq > 0 && freq != oper_freq &&
2912                     !(wpa_s->drv_flags &
2913                       WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2914                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2915                                    "on %u MHz while connected on another "
2916                                    "channel (%u MHz)", freq, oper_freq);
2917                         return -2;
2918                 }
2919                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2920                            "requested channel (%u MHz)", freq);
2921                 force_freq = freq;
2922         } else if (oper_freq > 0 &&
2923                    !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
2924                 if (!(wpa_s->drv_flags &
2925                       WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2926                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2927                                    "while connected on non-P2P supported "
2928                                    "channel (%u MHz)", oper_freq);
2929                         return -2;
2930                 }
2931                 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
2932                            "(%u MHz) not available for P2P - try to use "
2933                            "another channel", oper_freq);
2934                 force_freq = 0;
2935         } else if (oper_freq > 0) {
2936                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2937                            "channel we are already using (%u MHz) on another "
2938                            "interface", oper_freq);
2939                 force_freq = oper_freq;
2940         }
2941
2942         wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
2943
2944         if (!wpa_s->create_p2p_iface) {
2945                 if (auth) {
2946                         if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2947                                                  go_intent, wpa_s->own_addr,
2948                                                  force_freq, persistent_group)
2949                             < 0)
2950                                 return -1;
2951                         return ret;
2952                 }
2953                 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
2954                                           go_intent, wpa_s->own_addr,
2955                                           force_freq, persistent_group) < 0)
2956                         return -1;
2957                 return ret;
2958         }
2959
2960         /* Prepare to add a new interface for the group */
2961         iftype = WPA_IF_P2P_GROUP;
2962         if (join)
2963                 iftype = WPA_IF_P2P_CLIENT;
2964         else if (go_intent == 15)
2965                 iftype = WPA_IF_P2P_GO;
2966         if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
2967                 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2968                            "interface for the group");
2969                 return -1;
2970         }
2971
2972         if (auth) {
2973                 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2974                                          go_intent,
2975                                          wpa_s->pending_interface_addr,
2976                                          force_freq, persistent_group) < 0)
2977                         return -1;
2978                 return ret;
2979         }
2980         if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method, go_intent,
2981                                   wpa_s->pending_interface_addr,
2982                                   force_freq, persistent_group) < 0) {
2983                 wpas_p2p_remove_pending_group_interface(wpa_s);
2984                 return -1;
2985         }
2986         return ret;
2987 }
2988
2989
2990 /**
2991  * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
2992  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2993  * @freq: Frequency of the channel in MHz
2994  * @duration: Duration of the stay on the channel in milliseconds
2995  *
2996  * This callback is called when the driver indicates that it has started the
2997  * requested remain-on-channel duration.
2998  */
2999 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3000                                    unsigned int freq, unsigned int duration)
3001 {
3002         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3003                 return;
3004         wpa_s->roc_waiting_drv_freq = 0;
3005         wpa_s->off_channel_freq = freq;
3006         wpas_send_action_cb(wpa_s, NULL);
3007         if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
3008                 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
3009                               wpa_s->pending_listen_duration);
3010                 wpa_s->pending_listen_freq = 0;
3011         }
3012 }
3013
3014
3015 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
3016                                  unsigned int timeout)
3017 {
3018         /* Limit maximum Listen state time based on driver limitation. */
3019         if (timeout > wpa_s->max_remain_on_chan)
3020                 timeout = wpa_s->max_remain_on_chan;
3021
3022         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3023                 return wpa_drv_p2p_listen(wpa_s, timeout);
3024
3025         return p2p_listen(wpa_s->global->p2p, timeout);
3026 }
3027
3028
3029 /**
3030  * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3031  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3032  * @freq: Frequency of the channel in MHz
3033  *
3034  * This callback is called when the driver indicates that a remain-on-channel
3035  * operation has been completed, i.e., the duration on the requested channel
3036  * has timed out.
3037  */
3038 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3039                                           unsigned int freq)
3040 {
3041         wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
3042                    "(p2p_long_listen=%d ms pending_action_tx=%p)",
3043                    wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
3044         wpa_s->off_channel_freq = 0;
3045         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3046                 return;
3047         if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
3048                 return; /* P2P module started a new operation */
3049         if (wpa_s->pending_action_tx)
3050                 return;
3051         if (wpa_s->p2p_long_listen > 0)
3052                 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
3053         if (wpa_s->p2p_long_listen > 0) {
3054                 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
3055                 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
3056         }
3057 }
3058
3059
3060 /**
3061  * wpas_p2p_group_remove - Remove a P2P group
3062  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3063  * @ifname: Network interface name of the group interface or "*" to remove all
3064  *      groups
3065  * Returns: 0 on success, -1 on failure
3066  *
3067  * This function is used to remove a P2P group. This can be used to disconnect
3068  * from a group in which the local end is a P2P Client or to end a P2P Group in
3069  * case the local end is the Group Owner. If a virtual network interface was
3070  * created for this group, that interface will be removed. Otherwise, only the
3071  * configured P2P group network will be removed from the interface.
3072  */
3073 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
3074 {
3075         struct wpa_global *global = wpa_s->global;
3076
3077         if (os_strcmp(ifname, "*") == 0) {
3078                 struct wpa_supplicant *prev;
3079                 wpa_s = global->ifaces;
3080                 while (wpa_s) {
3081                         prev = wpa_s;
3082                         wpa_s = wpa_s->next;
3083                         wpas_p2p_disconnect(prev);
3084                 }
3085                 return 0;
3086         }
3087
3088         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3089                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3090                         break;
3091         }
3092
3093         return wpas_p2p_disconnect(wpa_s);
3094 }
3095
3096
3097 static void wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
3098                                     struct p2p_go_neg_results *params,
3099                                     int freq)
3100 {
3101         u8 bssid[ETH_ALEN];
3102         int res;
3103
3104         os_memset(params, 0, sizeof(*params));
3105         params->role_go = 1;
3106         if (freq) {
3107                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
3108                            "frequency %d MHz", freq);
3109                 params->freq = freq;
3110         } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
3111                    wpa_s->conf->p2p_oper_channel >= 1 &&
3112                    wpa_s->conf->p2p_oper_channel <= 11) {
3113                 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
3114                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3115                            "frequency %d MHz", params->freq);
3116         } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
3117                    wpa_s->conf->p2p_oper_reg_class == 118) {
3118                 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
3119                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3120                            "frequency %d MHz", params->freq);
3121         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3122                    wpa_s->best_overall_freq > 0 &&
3123                    p2p_supported_freq(wpa_s->global->p2p,
3124                                       wpa_s->best_overall_freq)) {
3125                 params->freq = wpa_s->best_overall_freq;
3126                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
3127                            "channel %d MHz", params->freq);
3128         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3129                    wpa_s->best_24_freq > 0 &&
3130                    p2p_supported_freq(wpa_s->global->p2p,
3131                                       wpa_s->best_24_freq)) {
3132                 params->freq = wpa_s->best_24_freq;
3133                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
3134                            "channel %d MHz", params->freq);
3135         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3136                    wpa_s->best_5_freq > 0 &&
3137                    p2p_supported_freq(wpa_s->global->p2p,
3138                                       wpa_s->best_5_freq)) {
3139                 params->freq = wpa_s->best_5_freq;
3140                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
3141                            "channel %d MHz", params->freq);
3142         } else {
3143                 params->freq = 2412;
3144                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
3145                            "known)", params->freq);
3146         }
3147
3148         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3149             wpa_s->assoc_freq && !freq) {
3150                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3151                            "already using");
3152                 params->freq = wpa_s->assoc_freq;
3153         }
3154
3155         res = wpa_drv_shared_freq(wpa_s);
3156         if (res > 0 && !freq) {
3157                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3158                            "already using on a shared interface");
3159                 params->freq = res;
3160         }
3161 }
3162
3163
3164 static struct wpa_supplicant *
3165 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3166                          int go)
3167 {
3168         struct wpa_supplicant *group_wpa_s;
3169
3170         if (!wpas_p2p_create_iface(wpa_s))
3171                 return wpa_s;
3172
3173         if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3174                                          WPA_IF_P2P_CLIENT) < 0)
3175                 return NULL;
3176         group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3177         if (group_wpa_s == NULL) {
3178                 wpas_p2p_remove_pending_group_interface(wpa_s);
3179                 return NULL;
3180         }
3181
3182         return group_wpa_s;
3183 }
3184
3185
3186 /**
3187  * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3188  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3189  * @persistent_group: Whether to create a persistent group
3190  * @freq: Frequency for the group or 0 to indicate no hardcoding
3191  * Returns: 0 on success, -1 on failure
3192  *
3193  * This function creates a new P2P group with the local end as the Group Owner,
3194  * i.e., without using Group Owner Negotiation.
3195  */
3196 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
3197                        int freq)
3198 {
3199         struct p2p_go_neg_results params;
3200         unsigned int r;
3201
3202         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3203                 return -1;
3204
3205         if (freq == 2) {
3206                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3207                            "band");
3208                 if (wpa_s->best_24_freq > 0 &&
3209                     p2p_supported_freq(wpa_s->global->p2p,
3210                                        wpa_s->best_24_freq)) {
3211                         freq = wpa_s->best_24_freq;
3212                         wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3213                                    "channel: %d MHz", freq);
3214                 } else {
3215                         os_get_random((u8 *) &r, sizeof(r));
3216                         freq = 2412 + (r % 3) * 25;
3217                         wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3218                                    "channel: %d MHz", freq);
3219                 }
3220         }
3221
3222         if (freq == 5) {
3223                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3224                            "band");
3225                 if (wpa_s->best_5_freq > 0 &&
3226                     p2p_supported_freq(wpa_s->global->p2p,
3227                                        wpa_s->best_5_freq)) {
3228                         freq = wpa_s->best_5_freq;
3229                         wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3230                                    "channel: %d MHz", freq);
3231                 } else {
3232                         os_get_random((u8 *) &r, sizeof(r));
3233                         freq = 5180 + (r % 4) * 20;
3234                         if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3235                                 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3236                                            "5 GHz channel for P2P group");
3237                                 return -1;
3238                         }
3239                         wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3240                                    "channel: %d MHz", freq);
3241                 }
3242         }
3243
3244         if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3245                 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3246                            "(%u MHz) is not supported for P2P uses",
3247                            freq);
3248                 return -1;
3249         }
3250
3251         wpas_p2p_init_go_params(wpa_s, &params, freq);
3252         p2p_go_params(wpa_s->global->p2p, &params);
3253         params.persistent_group = persistent_group;
3254
3255         wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3256         if (wpa_s == NULL)
3257                 return -1;
3258         wpas_start_wps_go(wpa_s, &params, 0);
3259
3260         return 0;
3261 }
3262
3263
3264 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3265                                  struct wpa_ssid *params, int addr_allocated)
3266 {
3267         struct wpa_ssid *ssid;
3268
3269         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3270         if (wpa_s == NULL)
3271                 return -1;
3272
3273         wpa_supplicant_ap_deinit(wpa_s);
3274
3275         ssid = wpa_config_add_network(wpa_s->conf);
3276         if (ssid == NULL)
3277                 return -1;
3278         wpas_notify_network_added(wpa_s, ssid);
3279         wpa_config_set_network_defaults(ssid);
3280         ssid->temporary = 1;
3281         ssid->proto = WPA_PROTO_RSN;
3282         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3283         ssid->group_cipher = WPA_CIPHER_CCMP;
3284         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3285         ssid->ssid = os_malloc(params->ssid_len);
3286         if (ssid->ssid == NULL) {
3287                 wpas_notify_network_removed(wpa_s, ssid);
3288                 wpa_config_remove_network(wpa_s->conf, ssid->id);
3289                 return -1;
3290         }
3291         os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3292         ssid->ssid_len = params->ssid_len;
3293         ssid->p2p_group = 1;
3294         ssid->export_keys = 1;
3295         if (params->psk_set) {
3296                 os_memcpy(ssid->psk, params->psk, 32);
3297                 ssid->psk_set = 1;
3298         }
3299         if (params->passphrase)
3300                 ssid->passphrase = os_strdup(params->passphrase);
3301
3302         wpa_supplicant_select_network(wpa_s, ssid);
3303
3304         wpa_s->show_group_started = 1;
3305
3306         return 0;
3307 }
3308
3309
3310 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3311                                   struct wpa_ssid *ssid, int addr_allocated,
3312                                   int freq)
3313 {
3314         struct p2p_go_neg_results params;
3315         int go = 0;
3316
3317         if (ssid->disabled != 2 || ssid->ssid == NULL)
3318                 return -1;
3319
3320         if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
3321             go == (ssid->mode == WPAS_MODE_P2P_GO)) {
3322                 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
3323                            "already running");
3324                 return 0;
3325         }
3326
3327         /* Make sure we are not running find during connection establishment */
3328         wpas_p2p_stop_find(wpa_s);
3329
3330         if (ssid->mode == WPAS_MODE_INFRA)
3331                 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
3332
3333         if (ssid->mode != WPAS_MODE_P2P_GO)
3334                 return -1;
3335
3336         wpas_p2p_init_go_params(wpa_s, &params, freq);
3337
3338         params.role_go = 1;
3339         if (ssid->passphrase == NULL ||
3340             os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
3341                 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
3342                            "group");
3343                 return -1;
3344         }
3345         os_strlcpy(params.passphrase, ssid->passphrase,
3346                    sizeof(params.passphrase));
3347         os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
3348         params.ssid_len = ssid->ssid_len;
3349         params.persistent_group = 1;
3350
3351         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
3352         if (wpa_s == NULL)
3353                 return -1;
3354
3355         wpas_start_wps_go(wpa_s, &params, 0);
3356
3357         return 0;
3358 }
3359
3360
3361 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
3362                                struct wpabuf *proberesp_ies)
3363 {
3364         struct wpa_supplicant *wpa_s = ctx;
3365         if (wpa_s->ap_iface) {
3366                 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
3367                 if (beacon_ies) {
3368                         wpabuf_free(hapd->p2p_beacon_ie);
3369                         hapd->p2p_beacon_ie = beacon_ies;
3370                 }
3371                 wpabuf_free(hapd->p2p_probe_resp_ie);
3372                 hapd->p2p_probe_resp_ie = proberesp_ies;
3373         } else {
3374                 wpabuf_free(beacon_ies);
3375                 wpabuf_free(proberesp_ies);
3376         }
3377         wpa_supplicant_ap_update_beacon(wpa_s);
3378 }
3379
3380
3381 static void wpas_p2p_idle_update(void *ctx, int idle)
3382 {
3383         struct wpa_supplicant *wpa_s = ctx;
3384         if (!wpa_s->ap_iface)
3385                 return;
3386         wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
3387         if (idle)
3388                 wpas_p2p_set_group_idle_timeout(wpa_s);
3389         else
3390                 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3391 }
3392
3393
3394 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
3395                                        int persistent_group,
3396                                        int group_formation)
3397 {
3398         struct p2p_group *group;
3399         struct p2p_group_config *cfg;
3400
3401         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3402                 return NULL;
3403         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3404                 return NULL;
3405
3406         cfg = os_zalloc(sizeof(*cfg));
3407         if (cfg == NULL)
3408                 return NULL;
3409
3410         cfg->persistent_group = persistent_group;
3411         os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3412         if (wpa_s->max_stations &&
3413             wpa_s->max_stations < wpa_s->conf->max_num_sta)
3414                 cfg->max_clients = wpa_s->max_stations;
3415         else
3416                 cfg->max_clients = wpa_s->conf->max_num_sta;
3417         cfg->cb_ctx = wpa_s;
3418         cfg->ie_update = wpas_p2p_ie_update;
3419         cfg->idle_update = wpas_p2p_idle_update;
3420
3421         group = p2p_group_init(wpa_s->global->p2p, cfg);
3422         if (group == NULL)
3423                 os_free(cfg);
3424         if (!group_formation)
3425                 p2p_group_notif_formation_done(group);
3426         wpa_s->p2p_group = group;
3427         return group;
3428 }
3429
3430
3431 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3432                           int registrar)
3433 {
3434         if (!wpa_s->p2p_in_provisioning) {
3435                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
3436                            "provisioning not in progress");
3437                 return;
3438         }
3439
3440         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
3441                              NULL);
3442         if (wpa_s->global->p2p)
3443                 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
3444         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3445                 wpa_drv_wps_success_cb(wpa_s, peer_addr);
3446         wpas_group_formation_completed(wpa_s, 1);
3447 }
3448
3449
3450 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3451                        const char *config_method)
3452 {
3453         u16 config_methods;
3454
3455         if (os_strcmp(config_method, "display") == 0)
3456                 config_methods = WPS_CONFIG_DISPLAY;
3457         else if (os_strcmp(config_method, "keypad") == 0)
3458                 config_methods = WPS_CONFIG_KEYPAD;
3459         else if (os_strcmp(config_method, "pbc") == 0 ||
3460                  os_strcmp(config_method, "pushbutton") == 0)
3461                 config_methods = WPS_CONFIG_PUSHBUTTON;
3462         else
3463                 return -1;
3464
3465         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3466                 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
3467                                                  config_methods);
3468         }
3469
3470         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
3471                 return -1;
3472
3473         return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
3474                                  config_methods, 0);
3475 }
3476
3477
3478 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
3479                               char *end)
3480 {
3481         return p2p_scan_result_text(ies, ies_len, buf, end);
3482 }
3483
3484
3485 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
3486 {
3487         if (!wpa_s->pending_action_tx)
3488                 return;
3489
3490         wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
3491                    "operation request");
3492         wpabuf_free(wpa_s->pending_action_tx);
3493         wpa_s->pending_action_tx = NULL;
3494 }
3495
3496
3497 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
3498                   enum p2p_discovery_type type)
3499 {
3500         wpas_p2p_clear_pending_action_tx(wpa_s);
3501         wpa_s->p2p_long_listen = 0;
3502
3503         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3504                 return wpa_drv_p2p_find(wpa_s, timeout, type);
3505
3506         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3507                 return -1;
3508
3509         return p2p_find(wpa_s->global->p2p, timeout, type);
3510 }
3511
3512
3513 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
3514 {
3515         wpas_p2p_clear_pending_action_tx(wpa_s);
3516         wpa_s->p2p_long_listen = 0;
3517         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3518         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3519
3520         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3521                 wpa_drv_p2p_stop_find(wpa_s);
3522                 return;
3523         }
3524
3525         if (wpa_s->global->p2p)
3526                 p2p_stop_find(wpa_s->global->p2p);
3527
3528         wpas_p2p_remove_pending_group_interface(wpa_s);
3529 }
3530
3531
3532 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3533 {
3534         struct wpa_supplicant *wpa_s = eloop_ctx;
3535         wpa_s->p2p_long_listen = 0;
3536 }
3537
3538
3539 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
3540 {
3541         int res;
3542
3543         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3544                 return -1;
3545
3546         wpas_p2p_clear_pending_action_tx(wpa_s);
3547
3548         if (timeout == 0) {
3549                 /*
3550                  * This is a request for unlimited Listen state. However, at
3551                  * least for now, this is mapped to a Listen state for one
3552                  * hour.
3553                  */
3554                 timeout = 3600;
3555         }
3556         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3557         wpa_s->p2p_long_listen = 0;
3558
3559         res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
3560         if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
3561                 wpa_s->p2p_long_listen = timeout * 1000;
3562                 eloop_register_timeout(timeout, 0,
3563                                        wpas_p2p_long_listen_timeout,
3564                                        wpa_s, NULL);
3565         }
3566
3567         return res;
3568 }
3569
3570
3571 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
3572                           u8 *buf, size_t len, int p2p_group)
3573 {
3574         struct wpabuf *p2p_ie;
3575         int ret;
3576
3577         if (wpa_s->global->p2p_disabled)
3578                 return -1;
3579         if (wpa_s->global->p2p == NULL)
3580                 return -1;
3581         if (bss == NULL)
3582                 return -1;
3583
3584         p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3585         ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3586                                p2p_group, p2p_ie);
3587         wpabuf_free(p2p_ie);
3588
3589         return ret;
3590 }
3591
3592
3593 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
3594                           const u8 *ie, size_t ie_len)
3595 {
3596         if (wpa_s->global->p2p_disabled)
3597                 return 0;
3598         if (wpa_s->global->p2p == NULL)
3599                 return 0;
3600
3601         return p2p_probe_req_rx(wpa_s->global->p2p, addr, ie, ie_len);
3602 }
3603
3604
3605 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3606                         const u8 *sa, const u8 *bssid,
3607                         u8 category, const u8 *data, size_t len, int freq)
3608 {
3609         if (wpa_s->global->p2p_disabled)
3610                 return;
3611         if (wpa_s->global->p2p == NULL)
3612                 return;
3613
3614         p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3615                       freq);
3616 }
3617
3618
3619 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3620 {
3621         if (wpa_s->global->p2p_disabled)
3622                 return;
3623         if (wpa_s->global->p2p == NULL)
3624                 return;
3625
3626         p2p_scan_ie(wpa_s->global->p2p, ies);
3627 }
3628
3629
3630 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3631 {
3632         p2p_group_deinit(wpa_s->p2p_group);
3633         wpa_s->p2p_group = NULL;
3634 }
3635
3636
3637 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3638 {
3639         wpa_s->p2p_long_listen = 0;
3640
3641         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3642                 return wpa_drv_p2p_reject(wpa_s, addr);
3643
3644         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3645                 return -1;
3646
3647         return p2p_reject(wpa_s->global->p2p, addr);
3648 }
3649
3650
3651 /* Invite to reinvoke a persistent group */
3652 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3653                     struct wpa_ssid *ssid, const u8 *go_dev_addr)
3654 {
3655         enum p2p_invite_role role;
3656         u8 *bssid = NULL;
3657
3658         if (ssid->mode == WPAS_MODE_P2P_GO) {
3659                 role = P2P_INVITE_ROLE_GO;
3660                 if (peer_addr == NULL) {
3661                         wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3662                                    "address in invitation command");
3663                         return -1;
3664                 }
3665                 if (wpas_p2p_create_iface(wpa_s)) {
3666                         if (wpas_p2p_add_group_interface(wpa_s,
3667                                                          WPA_IF_P2P_GO) < 0) {
3668                                 wpa_printf(MSG_ERROR, "P2P: Failed to "
3669                                            "allocate a new interface for the "
3670                                            "group");
3671                                 return -1;
3672                         }
3673                         bssid = wpa_s->pending_interface_addr;
3674                 } else
3675                         bssid = wpa_s->own_addr;
3676         } else {
3677                 role = P2P_INVITE_ROLE_CLIENT;
3678                 peer_addr = ssid->bssid;
3679         }
3680         wpa_s->pending_invite_ssid_id = ssid->id;
3681
3682         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3683                 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3684                                           ssid->ssid, ssid->ssid_len,
3685                                           go_dev_addr, 1);
3686
3687         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3688                 return -1;
3689
3690         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3691                           ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3692 }
3693
3694
3695 /* Invite to join an active group */
3696 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3697                           const u8 *peer_addr, const u8 *go_dev_addr)
3698 {
3699         struct wpa_global *global = wpa_s->global;
3700         enum p2p_invite_role role;
3701         u8 *bssid = NULL;
3702         struct wpa_ssid *ssid;
3703
3704         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3705                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3706                         break;
3707         }
3708         if (wpa_s == NULL) {
3709                 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3710                 return -1;
3711         }
3712
3713         ssid = wpa_s->current_ssid;
3714         if (ssid == NULL) {
3715                 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3716                            "invitation");
3717                 return -1;
3718         }
3719
3720         if (ssid->mode == WPAS_MODE_P2P_GO) {
3721                 role = P2P_INVITE_ROLE_ACTIVE_GO;
3722                 bssid = wpa_s->own_addr;
3723                 if (go_dev_addr == NULL)
3724                         go_dev_addr = wpa_s->parent->own_addr;
3725         } else {
3726                 role = P2P_INVITE_ROLE_CLIENT;
3727                 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3728                         wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3729                                    "invite to current group");
3730                         return -1;
3731                 }
3732                 bssid = wpa_s->bssid;
3733                 if (go_dev_addr == NULL &&
3734                     !is_zero_ether_addr(wpa_s->go_dev_addr))
3735                         go_dev_addr = wpa_s->go_dev_addr;
3736         }
3737         wpa_s->parent->pending_invite_ssid_id = -1;
3738
3739         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3740                 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3741                                           ssid->ssid, ssid->ssid_len,
3742                                           go_dev_addr, 0);
3743
3744         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3745                 return -1;
3746
3747         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3748                           ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
3749                           go_dev_addr, 0);
3750 }
3751
3752
3753 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3754 {
3755         struct wpa_ssid *ssid = wpa_s->current_ssid;
3756         const char *ssid_txt;
3757         u8 go_dev_addr[ETH_ALEN];
3758         int persistent;
3759
3760         if (!wpa_s->show_group_started || !ssid)
3761                 return;
3762
3763         wpa_s->show_group_started = 0;
3764
3765         ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3766         os_memset(go_dev_addr, 0, ETH_ALEN);
3767         if (ssid->bssid_set)
3768                 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3769         persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3770                                                ssid->ssid_len);
3771         os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3772
3773         if (wpa_s->global->p2p_group_formation == wpa_s)
3774                 wpa_s->global->p2p_group_formation = NULL;
3775
3776         if (ssid->passphrase == NULL && ssid->psk_set) {
3777                 char psk[65];
3778                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3779                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3780                         "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
3781                         MACSTR "%s",
3782                         wpa_s->ifname, ssid_txt, ssid->frequency, psk,
3783                         MAC2STR(go_dev_addr),
3784                         persistent ? " [PERSISTENT]" : "");
3785         } else {
3786                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3787                         "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
3788                         "go_dev_addr=" MACSTR "%s",
3789                         wpa_s->ifname, ssid_txt, ssid->frequency,
3790                         ssid->passphrase ? ssid->passphrase : "",
3791                         MAC2STR(go_dev_addr),
3792                         persistent ? " [PERSISTENT]" : "");
3793         }
3794
3795         if (persistent)
3796                 wpas_p2p_store_persistent_group(wpa_s->parent, ssid,
3797                                                 go_dev_addr);
3798 }
3799
3800
3801 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3802                           u32 interval1, u32 duration2, u32 interval2)
3803 {
3804         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3805                 return -1;
3806         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3807                 return -1;
3808
3809         if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3810             wpa_s->current_ssid == NULL ||
3811             wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3812                 return -1;
3813
3814         return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3815                                 wpa_s->own_addr, wpa_s->assoc_freq,
3816                                 duration1, interval1, duration2, interval2);
3817 }
3818
3819
3820 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3821                         unsigned int interval)
3822 {
3823         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3824                 return -1;
3825
3826         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3827                 return -1;
3828
3829         return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3830 }
3831
3832
3833 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
3834 {
3835         struct wpa_supplicant *wpa_s = eloop_ctx;
3836
3837         if (wpa_s->conf->p2p_group_idle == 0) {
3838                 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
3839                            "disabled");
3840                 return;
3841         }
3842
3843         wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
3844                    "group");
3845         wpa_s->removal_reason = P2P_GROUP_REMOVAL_IDLE_TIMEOUT;
3846         wpas_p2p_group_delete(wpa_s);
3847 }
3848
3849
3850 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
3851 {
3852         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3853         if (wpa_s->conf->p2p_group_idle == 0)
3854                 return;
3855
3856         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3857                 return;
3858
3859         wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
3860                    wpa_s->conf->p2p_group_idle);
3861         eloop_register_timeout(wpa_s->conf->p2p_group_idle, 0,
3862                                wpas_p2p_group_idle_timeout, wpa_s, NULL);
3863 }
3864
3865
3866 void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3867                            u16 reason_code, const u8 *ie, size_t ie_len)
3868 {
3869         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3870                 return;
3871         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3872                 return;
3873
3874         p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3875 }
3876
3877
3878 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3879                              u16 reason_code, const u8 *ie, size_t ie_len)
3880 {
3881         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3882                 return;
3883         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3884                 return;
3885
3886         p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3887 }
3888
3889
3890 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
3891 {
3892         struct p2p_data *p2p = wpa_s->global->p2p;
3893
3894         if (p2p == NULL)
3895                 return;
3896
3897         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3898                 return;
3899
3900         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
3901                 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
3902
3903         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) {
3904                 u8 pri_dev_type[8];
3905                 if (wpa_s->conf->device_type) {
3906                         if (wps_dev_type_str2bin(wpa_s->conf->device_type,
3907                                                  pri_dev_type) < 0) {
3908                                 wpa_printf(MSG_ERROR, "P2P: Invalid "
3909                                            "device_type");
3910                         } else
3911                                 p2p_set_pri_dev_type(p2p, pri_dev_type);
3912                 }
3913         }
3914
3915         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
3916                 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
3917                 size_t num = 0;
3918                 int i;
3919                 for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
3920                         if (wpa_s->conf->sec_device_type[i] == NULL)
3921                                 continue;
3922                         if (wps_dev_type_str2bin(
3923                                     wpa_s->conf->sec_device_type[i],
3924                                     sec_dev_type[num]) < 0) {
3925                                 wpa_printf(MSG_ERROR, "P2P: Invalid "
3926                                            "sec_device_type");
3927                                 continue;
3928                         }
3929                         num++;
3930                         if (num == P2P_SEC_DEVICE_TYPES)
3931                                 break;
3932                 }
3933                 p2p_set_sec_dev_types(p2p, (void *) sec_dev_type, num);
3934         }
3935
3936         if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
3937             wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3938                 char country[3];
3939                 country[0] = wpa_s->conf->country[0];
3940                 country[1] = wpa_s->conf->country[1];
3941                 country[2] = 0x04;
3942                 p2p_set_country(p2p, country);
3943         }
3944
3945         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
3946                 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
3947                                      wpa_s->conf->p2p_ssid_postfix ?
3948                                      os_strlen(wpa_s->conf->p2p_ssid_postfix) :
3949                                      0);
3950         }
3951
3952         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
3953                 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
3954 }
3955
3956
3957 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
3958                      int duration)
3959 {
3960         if (!wpa_s->ap_iface)
3961                 return -1;
3962         return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
3963                                    duration);
3964 }
3965
3966
3967 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
3968 {
3969         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3970                 return -1;
3971         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3972                 return -1;
3973
3974         wpa_s->global->cross_connection = enabled;
3975         p2p_set_cross_connect(wpa_s->global->p2p, enabled);
3976
3977         if (!enabled) {
3978                 struct wpa_supplicant *iface;
3979
3980                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
3981                 {
3982                         if (iface->cross_connect_enabled == 0)
3983                                 continue;
3984
3985                         iface->cross_connect_enabled = 0;
3986                         iface->cross_connect_in_use = 0;
3987                         wpa_msg(iface->parent, MSG_INFO,
3988                                 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3989                                 iface->ifname, iface->cross_connect_uplink);
3990                 }
3991         }
3992
3993         return 0;
3994 }
3995
3996
3997 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
3998 {
3999         struct wpa_supplicant *iface;
4000
4001         if (!uplink->global->cross_connection)
4002                 return;
4003
4004         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4005                 if (!iface->cross_connect_enabled)
4006                         continue;
4007                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4008                     0)
4009                         continue;
4010                 if (iface->ap_iface == NULL)
4011                         continue;
4012                 if (iface->cross_connect_in_use)
4013                         continue;
4014
4015                 iface->cross_connect_in_use = 1;
4016                 wpa_msg(iface->parent, MSG_INFO,
4017                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4018                         iface->ifname, iface->cross_connect_uplink);
4019         }
4020 }
4021
4022
4023 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
4024 {
4025         struct wpa_supplicant *iface;
4026
4027         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4028                 if (!iface->cross_connect_enabled)
4029                         continue;
4030                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4031                     0)
4032                         continue;
4033                 if (!iface->cross_connect_in_use)
4034                         continue;
4035
4036                 wpa_msg(iface->parent, MSG_INFO,
4037                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4038                         iface->ifname, iface->cross_connect_uplink);
4039                 iface->cross_connect_in_use = 0;
4040         }
4041 }
4042
4043
4044 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4045 {
4046         if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
4047             wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
4048             wpa_s->cross_connect_disallowed)
4049                 wpas_p2p_disable_cross_connect(wpa_s);
4050         else
4051                 wpas_p2p_enable_cross_connect(wpa_s);
4052         if (!wpa_s->ap_iface)
4053                 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4054 }
4055
4056
4057 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
4058 {
4059         wpas_p2p_disable_cross_connect(wpa_s);
4060         if (!wpa_s->ap_iface)
4061                 wpas_p2p_set_group_idle_timeout(wpa_s);
4062 }
4063
4064
4065 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
4066 {
4067         struct wpa_supplicant *iface;
4068
4069         if (!wpa_s->global->cross_connection)
4070                 return;
4071
4072         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
4073                 if (iface == wpa_s)
4074                         continue;
4075                 if (iface->drv_flags &
4076                     WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
4077                         continue;
4078                 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
4079                         continue;
4080
4081                 wpa_s->cross_connect_enabled = 1;
4082                 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
4083                            sizeof(wpa_s->cross_connect_uplink));
4084                 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
4085                            "%s to %s whenever uplink is available",
4086                            wpa_s->ifname, wpa_s->cross_connect_uplink);
4087
4088                 if (iface->ap_iface || iface->current_ssid == NULL ||
4089                     iface->current_ssid->mode != WPAS_MODE_INFRA ||
4090                     iface->cross_connect_disallowed ||
4091                     iface->wpa_state != WPA_COMPLETED)
4092                         break;
4093
4094                 wpa_s->cross_connect_in_use = 1;
4095                 wpa_msg(wpa_s->parent, MSG_INFO,
4096                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4097                         wpa_s->ifname, wpa_s->cross_connect_uplink);
4098                 break;
4099         }
4100 }
4101
4102
4103 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
4104 {
4105         if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
4106             !wpa_s->p2p_in_provisioning)
4107                 return 0; /* not P2P client operation */
4108
4109         wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
4110                    "session overlap");
4111         if (wpa_s != wpa_s->parent)
4112                 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
4113
4114         if (wpa_s->global->p2p)
4115                 p2p_group_formation_failed(wpa_s->global->p2p);
4116
4117         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4118                              wpa_s->parent, NULL);
4119
4120         wpas_group_formation_completed(wpa_s, 0);
4121         return 1;
4122 }
4123
4124
4125 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
4126 {
4127         struct p2p_channels chan;
4128
4129         if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
4130                 return;
4131
4132         os_memset(&chan, 0, sizeof(chan));
4133         if (wpas_p2p_setup_channels(wpa_s, &chan)) {
4134                 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
4135                            "channel list");
4136                 return;
4137         }
4138
4139         p2p_update_channel_list(wpa_s->global->p2p, &chan);
4140 }
4141
4142
4143 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
4144 {
4145         struct wpa_global *global = wpa_s->global;
4146         int found = 0;
4147         const u8 *peer;
4148
4149         if (global->p2p == NULL)
4150                 return -1;
4151
4152         wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
4153
4154         if (wpa_s->pending_interface_name[0] &&
4155             !is_zero_ether_addr(wpa_s->pending_interface_addr))
4156                 found = 1;
4157
4158         peer = p2p_get_go_neg_peer(global->p2p);
4159         if (peer) {
4160                 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
4161                            MACSTR, MAC2STR(peer));
4162                 p2p_unauthorize(global->p2p, peer);
4163         }
4164
4165         wpas_p2p_stop_find(wpa_s);
4166
4167         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4168                 if (wpa_s == global->p2p_group_formation &&
4169                     (wpa_s->p2p_in_provisioning ||
4170                      wpa_s->parent->pending_interface_type ==
4171                      WPA_IF_P2P_CLIENT)) {
4172                         wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
4173                                    "formation found - cancelling",
4174                                    wpa_s->ifname);
4175                         found = 1;
4176                         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4177                                              wpa_s->parent, NULL);
4178                         wpas_p2p_group_delete(wpa_s);
4179                         break;
4180                 }
4181         }
4182
4183         if (!found) {
4184                 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
4185                 return -1;
4186         }
4187
4188         return 0;
4189 }
4190
4191
4192 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
4193 {
4194         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4195                 return;
4196
4197         wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
4198                    "being available anymore");
4199         wpa_s->removal_reason = P2P_GROUP_REMOVAL_UNAVAILABLE;
4200         wpas_p2p_group_delete(wpa_s);
4201 }
4202
4203
4204 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
4205                                    int freq_24, int freq_5, int freq_overall)
4206 {
4207         struct p2p_data *p2p = wpa_s->global->p2p;
4208         if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4209                 return;
4210         p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
4211 }
4212
4213
4214 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
4215 {
4216         u8 peer[ETH_ALEN];
4217         struct p2p_data *p2p = wpa_s->global->p2p;
4218
4219         if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4220                 return -1;
4221
4222         if (hwaddr_aton(addr, peer))
4223                 return -1;
4224
4225         return p2p_unauthorize(p2p, peer);
4226 }
4227
4228
4229 /**
4230  * wpas_p2p_disconnect - Disconnect from a P2P Group
4231  * @wpa_s: Pointer to wpa_supplicant data
4232  * Returns: 0 on success, -1 on failure
4233  *
4234  * This can be used to disconnect from a group in which the local end is a P2P
4235  * Client or to end a P2P Group in case the local end is the Group Owner. If a
4236  * virtual network interface was created for this group, that interface will be
4237  * removed. Otherwise, only the configured P2P group network will be removed
4238  * from the interface.
4239  */
4240 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
4241 {
4242
4243         if (wpa_s == NULL)
4244                 return -1;
4245
4246         wpa_s->removal_reason = P2P_GROUP_REMOVAL_REQUESTED;
4247         wpas_p2p_group_delete(wpa_s);
4248
4249         return 0;
4250 }