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/ap_config.h"
  26 #include "ap/p2p_hostapd.h"
  27 #include "eapol_supp/eapol_supp_sm.h"
  28 #include "rsn_supp/wpa.h"
  29 #include "wpa_supplicant_i.h"
  30 #include "driver_i.h"
  31 #include "ap.h"
  32 #include "config_ssid.h"
  33 #include "config.h"
  34 #include "notify.h"
  35 #include "scan.h"
  36 #include "bss.h"
  37 #include "offchannel.h"
  38 #include "wps_supplicant.h"
  39 #include "p2p_supplicant.h"
  40
  41
  42 /*
  43  * How many times to try to scan to find the GO before giving up on join
  44  * request.
  45  */
  46 #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
  47
  48
  49 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
  50 static struct wpa_supplicant *
  51 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
  52                          int go);
  53 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
  54 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
  55 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
  56                          const u8 *dev_addr, enum p2p_wps_method wps_method);
  57 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
  58 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
  59 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
  60 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
  61
  62
  63 static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
  64                                       struct wpa_scan_results *scan_res)
  65 {
  66         size_t i;
  67
  68         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
  69                 return;
  70
  71         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
  72                    (int) scan_res->num);
  73
  74         for (i = 0; i < scan_res->num; i++) {
  75                 struct wpa_scan_res *bss = scan_res->res[i];
  76                 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
  77                                          bss->freq, bss->level,
  78                                          (const u8 *) (bss + 1),
  79                                          bss->ie_len) > 0)
  80                         break;
  81         }
  82
  83         p2p_scan_res_handled(wpa_s->global->p2p);
  84 }
  85
  86
  87 static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
  88                          unsigned int num_req_dev_types,
  89                          const u8 *req_dev_types)
  90 {
  91         struct wpa_supplicant *wpa_s = ctx;
  92         struct wpa_driver_scan_params params;
  93         int ret;
  94         struct wpabuf *wps_ie, *ies;
  95         int social_channels[] = { 2412, 2437, 2462, 0, 0 };
  96         size_t ielen;
  97         int was_in_p2p_scan;
  98
  99         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
 100                 return -1;
 101
 102         os_memset(&params, 0, sizeof(params));
 103
 104         /* P2P Wildcard SSID */
 105         params.num_ssids = 1;
 106         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
 107         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
 108
 109         wpa_s->wps->dev.p2p = 1;
 110         wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
 111                                         WPS_REQ_ENROLLEE,
 112                                         num_req_dev_types, req_dev_types);
 113         if (wps_ie == NULL)
 114                 return -1;
 115
 116         ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
 117         ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
 118         if (ies == NULL) {
 119                 wpabuf_free(wps_ie);
 120                 return -1;
 121         }
 122         wpabuf_put_buf(ies, wps_ie);
 123         wpabuf_free(wps_ie);
 124
 125         p2p_scan_ie(wpa_s->global->p2p, ies);
 126
 127         params.p2p_probe = 1;
 128         params.extra_ies = wpabuf_head(ies);
 129         params.extra_ies_len = wpabuf_len(ies);
 130
 131         switch (type) {
 132         case P2P_SCAN_SOCIAL:
 133                 params.freqs = social_channels;
 134                 break;
 135         case P2P_SCAN_FULL:
 136                 break;
 137         case P2P_SCAN_SPECIFIC:
 138                 social_channels[0] = freq;
 139                 social_channels[1] = 0;
 140                 params.freqs = social_channels;
 141                 break;
 142         case P2P_SCAN_SOCIAL_PLUS_ONE:
 143                 social_channels[3] = freq;
 144                 params.freqs = social_channels;
 145                 break;
 146         }
 147
 148         was_in_p2p_scan = wpa_s->scan_res_handler == wpas_p2p_scan_res_handler;
 149         wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
 150         ret = wpa_drv_scan(wpa_s, &params);
 151
 152         wpabuf_free(ies);
 153
 154         if (ret) {
 155                 wpa_s->scan_res_handler = NULL;
 156                 if (wpa_s->scanning || was_in_p2p_scan) {
 157                         wpa_s->p2p_cb_on_scan_complete = 1;
 158                         ret = 1;
 159                 }
 160         }
 161
 162         return ret;
 163 }
 164
 165
 166 static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
 167 {
 168         switch (p2p_group_interface) {
 169         case P2P_GROUP_INTERFACE_PENDING:
 170                 return WPA_IF_P2P_GROUP;
 171         case P2P_GROUP_INTERFACE_GO:
 172                 return WPA_IF_P2P_GO;
 173         case P2P_GROUP_INTERFACE_CLIENT:
 174                 return WPA_IF_P2P_CLIENT;
 175         }
 176
 177         return WPA_IF_P2P_GROUP;
 178 }
 179
 180
 181 static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
 182                                                   const u8 *ssid,
 183                                                   size_t ssid_len, int *go)
 184 {
 185         struct wpa_ssid *s;
 186
 187         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
 188                 for (s = wpa_s->conf->ssid; s; s = s->next) {
 189                         if (s->disabled != 0 || !s->p2p_group ||
 190                             s->ssid_len != ssid_len ||
 191                             os_memcmp(ssid, s->ssid, ssid_len) != 0)
 192                                 continue;
 193                         if (s->mode == WPAS_MODE_P2P_GO &&
 194                             s != wpa_s->current_ssid)
 195                                 continue;
 196                         if (go)
 197                                 *go = s->mode == WPAS_MODE_P2P_GO;
 198                         return wpa_s;
 199                 }
 200         }
 201
 202         return NULL;
 203 }
 204
 205
 206 static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s)
 207 {
 208         struct wpa_ssid *ssid;
 209         char *gtype;
 210         const char *reason;
 211
 212         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
 213
 214         ssid = wpa_s->current_ssid;
 215         if (ssid == NULL) {
 216                 /*
 217                  * The current SSID was not known, but there may still be a
 218                  * pending P2P group interface waiting for provisioning.
 219                  */
 220                 ssid = wpa_s->conf->ssid;
 221                 while (ssid) {
 222                         if (ssid->p2p_group &&
 223                             (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 224                              (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
 225                                 break;
 226                         ssid = ssid->next;
 227                 }
 228         }
 229         if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
 230                 gtype = "GO";
 231         else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
 232                  (ssid && ssid->mode == WPAS_MODE_INFRA)) {
 233                 wpa_s->reassociate = 0;
 234                 wpa_s->disconnected = 1;
 235                 wpa_supplicant_deauthenticate(wpa_s,
 236                                               WLAN_REASON_DEAUTH_LEAVING);
 237                 gtype = "client";
 238         } else
 239                 gtype = "GO";
 240         if (wpa_s->cross_connect_in_use) {
 241                 wpa_s->cross_connect_in_use = 0;
 242                 wpa_msg(wpa_s->parent, MSG_INFO,
 243                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
 244                         wpa_s->ifname, wpa_s->cross_connect_uplink);
 245         }
 246         switch (wpa_s->removal_reason) {
 247         case P2P_GROUP_REMOVAL_REQUESTED:
 248                 reason = " reason=REQUESTED";
 249                 break;
 250         case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
 251                 reason = " reason=IDLE";
 252                 break;
 253         case P2P_GROUP_REMOVAL_UNAVAILABLE:
 254                 reason = " reason=UNAVAILABLE";
 255                 break;
 256         default:
 257                 reason = "";
 258                 break;
 259         }
 260         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_REMOVED "%s %s%s",
 261                 wpa_s->ifname, gtype, reason);
 262
 263         if (ssid)
 264                 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
 265
 266         if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
 267                 struct wpa_global *global;
 268                 char *ifname;
 269                 enum wpa_driver_if_type type;
 270                 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
 271                         wpa_s->ifname);
 272                 global = wpa_s->global;
 273                 ifname = os_strdup(wpa_s->ifname);
 274                 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
 275                 wpa_supplicant_remove_iface(wpa_s->global, wpa_s);
 276                 wpa_s = global->ifaces;
 277                 if (wpa_s && ifname)
 278                         wpa_drv_if_remove(wpa_s, type, ifname);
 279                 os_free(ifname);
 280                 return;
 281         }
 282
 283         wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
 284         if (ssid && (ssid->p2p_group ||
 285                      ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
 286                      (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
 287                 int id = ssid->id;
 288                 if (ssid == wpa_s->current_ssid) {
 289                         wpa_sm_set_config(wpa_s->wpa, NULL);
 290                         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 291                         wpa_s->current_ssid = NULL;
 292                 }
 293                 /*
 294                  * Networks objects created during any P2P activities are not
 295                  * exposed out as they might/will confuse certain non-P2P aware
 296                  * applications since these network objects won't behave like
 297                  * regular ones.
 298                  *
 299                  * Likewise, we don't send out network removed signals for such
 300                  * network objects.
 301                  */
 302                 wpa_config_remove_network(wpa_s->conf, id);
 303                 wpa_supplicant_clear_status(wpa_s);
 304         } else {
 305                 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
 306                            "found");
 307         }
 308         wpa_supplicant_ap_deinit(wpa_s);
 309 }
 310
 311
 312 static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
 313                                      u8 *go_dev_addr,
 314                                      const u8 *ssid, size_t ssid_len)
 315 {
 316         struct wpa_bss *bss;
 317         const u8 *bssid;
 318         struct wpabuf *p2p;
 319         u8 group_capab;
 320         const u8 *addr;
 321
 322         if (wpa_s->go_params)
 323                 bssid = wpa_s->go_params->peer_interface_addr;
 324         else
 325                 bssid = wpa_s->bssid;
 326
 327         bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
 328         if (bss == NULL) {
 329                 u8 iface_addr[ETH_ALEN];
 330                 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
 331                                            iface_addr) == 0)
 332                         bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
 333         }
 334         if (bss == NULL) {
 335                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 336                            "group is persistent - BSS " MACSTR " not found",
 337                            MAC2STR(bssid));
 338                 return 0;
 339         }
 340
 341         p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
 342         if (p2p == NULL) {
 343                 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
 344                            "group is persistent - BSS " MACSTR
 345                            " did not include P2P IE", MAC2STR(bssid));
 346                 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
 347                             (u8 *) (bss + 1), bss->ie_len);
 348                 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
 349                             ((u8 *) bss + 1) + bss->ie_len,
 350                             bss->beacon_ie_len);
 351                 return 0;
 352         }
 353
 354         group_capab = p2p_get_group_capab(p2p);
 355         addr = p2p_get_go_dev_addr(p2p);
 356         wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
 357                    "group_capab=0x%x", group_capab);
 358         if (addr) {
 359                 os_memcpy(go_dev_addr, addr, ETH_ALEN);
 360                 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
 361                            MAC2STR(addr));
 362         } else
 363                 os_memset(go_dev_addr, 0, ETH_ALEN);
 364         wpabuf_free(p2p);
 365
 366         wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
 367                    "go_dev_addr=" MACSTR,
 368                    MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
 369
 370         return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
 371 }
 372
 373
 374 static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
 375                                            struct wpa_ssid *ssid,
 376                                            const u8 *go_dev_addr)
 377 {
 378         struct wpa_ssid *s;
 379         int changed = 0;
 380
 381         wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
 382                    "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
 383         for (s = wpa_s->conf->ssid; s; s = s->next) {
 384                 if (s->disabled == 2 &&
 385                     os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
 386                     s->ssid_len == ssid->ssid_len &&
 387                     os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
 388                         break;
 389         }
 390
 391         if (s) {
 392                 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
 393                            "entry");
 394                 if (ssid->passphrase && !s->passphrase)
 395                         changed = 1;
 396                 else if (ssid->passphrase && s->passphrase &&
 397                          os_strcmp(ssid->passphrase, s->passphrase) != 0)
 398                         changed = 1;
 399         } else {
 400                 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
 401                            "entry");
 402                 changed = 1;
 403                 s = wpa_config_add_network(wpa_s->conf);
 404                 if (s == NULL)
 405                         return -1;
 406
 407                 /*
 408                  * Instead of network_added we emit persistent_group_added
 409                  * notification. Also to keep the defense checks in
 410                  * persistent_group obj registration method, we set the
 411                  * relevant flags in s to designate it as a persistent group.
 412                  */
 413                 s->p2p_group = 1;
 414                 s->p2p_persistent_group = 1;
 415                 wpas_notify_persistent_group_added(wpa_s, s);
 416                 wpa_config_set_network_defaults(s);
 417         }
 418
 419         s->p2p_group = 1;
 420         s->p2p_persistent_group = 1;
 421         s->disabled = 2;
 422         s->bssid_set = 1;
 423         os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
 424         s->mode = ssid->mode;
 425         s->auth_alg = WPA_AUTH_ALG_OPEN;
 426         s->key_mgmt = WPA_KEY_MGMT_PSK;
 427         s->proto = WPA_PROTO_RSN;
 428         s->pairwise_cipher = WPA_CIPHER_CCMP;
 429         s->export_keys = 1;
 430         if (ssid->passphrase) {
 431                 os_free(s->passphrase);
 432                 s->passphrase = os_strdup(ssid->passphrase);
 433         }
 434         if (ssid->psk_set) {
 435                 s->psk_set = 1;
 436                 os_memcpy(s->psk, ssid->psk, 32);
 437         }
 438         if (s->passphrase && !s->psk_set)
 439                 wpa_config_update_psk(s);
 440         if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
 441                 os_free(s->ssid);
 442                 s->ssid = os_malloc(ssid->ssid_len);
 443         }
 444         if (s->ssid) {
 445                 s->ssid_len = ssid->ssid_len;
 446                 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
 447         }
 448
 449 #ifndef CONFIG_NO_CONFIG_WRITE
 450         if (changed && wpa_s->conf->update_config &&
 451             wpa_config_write(wpa_s->confname, wpa_s->conf)) {
 452                 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
 453         }
 454 #endif /* CONFIG_NO_CONFIG_WRITE */
 455
 456         return s->id;
 457 }
 458
 459
 460 static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
 461                                            int success)
 462 {
 463         struct wpa_ssid *ssid;
 464         const char *ssid_txt;
 465         int client;
 466         int persistent;
 467         u8 go_dev_addr[ETH_ALEN];
 468         int network_id = -1;
 469
 470         /*
 471          * This callback is likely called for the main interface. Update wpa_s
 472          * to use the group interface if a new interface was created for the
 473          * group.
 474          */
 475         if (wpa_s->global->p2p_group_formation)
 476                 wpa_s = wpa_s->global->p2p_group_formation;
 477         wpa_s->global->p2p_group_formation = NULL;
 478         wpa_s->p2p_in_provisioning = 0;
 479
 480         if (!success) {
 481                 wpa_msg(wpa_s->parent, MSG_INFO,
 482                         P2P_EVENT_GROUP_FORMATION_FAILURE);
 483                 wpas_p2p_group_delete(wpa_s);
 484                 return;
 485         }
 486
 487         wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
 488
 489         ssid = wpa_s->current_ssid;
 490         if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
 491                 ssid->mode = WPAS_MODE_P2P_GO;
 492                 p2p_group_notif_formation_done(wpa_s->p2p_group);
 493                 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
 494         }
 495
 496         persistent = 0;
 497         if (ssid) {
 498                 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
 499                 client = ssid->mode == WPAS_MODE_INFRA;
 500                 if (ssid->mode == WPAS_MODE_P2P_GO) {
 501                         persistent = ssid->p2p_persistent_group;
 502                         os_memcpy(go_dev_addr, wpa_s->parent->own_addr,
 503                                   ETH_ALEN);
 504                 } else
 505                         persistent = wpas_p2p_persistent_group(wpa_s,
 506                                                                go_dev_addr,
 507                                                                ssid->ssid,
 508                                                                ssid->ssid_len);
 509         } else {
 510                 ssid_txt = "";
 511                 client = wpa_s->p2p_group_interface ==
 512                         P2P_GROUP_INTERFACE_CLIENT;
 513                 os_memset(go_dev_addr, 0, ETH_ALEN);
 514         }
 515
 516         wpa_s->show_group_started = 0;
 517         if (client) {
 518                 /*
 519                  * Indicate event only after successfully completed 4-way
 520                  * handshake, i.e., when the interface is ready for data
 521                  * packets.
 522                  */
 523                 wpa_s->show_group_started = 1;
 524         } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
 525                 char psk[65];
 526                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
 527                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 528                         "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
 529                         "%s",
 530                         wpa_s->ifname, ssid_txt, ssid->frequency, psk,
 531                         MAC2STR(go_dev_addr),
 532                         persistent ? " [PERSISTENT]" : "");
 533                 wpas_p2p_cross_connect_setup(wpa_s);
 534                 wpas_p2p_set_group_idle_timeout(wpa_s);
 535         } else {
 536                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 537                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 538                         "go_dev_addr=" MACSTR "%s",
 539                         wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
 540                         ssid && ssid->passphrase ? ssid->passphrase : "",
 541                         MAC2STR(go_dev_addr),
 542                         persistent ? " [PERSISTENT]" : "");
 543                 wpas_p2p_cross_connect_setup(wpa_s);
 544                 wpas_p2p_set_group_idle_timeout(wpa_s);
 545         }
 546
 547         if (persistent)
 548                 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
 549                                                              ssid, go_dev_addr);
 550         if (network_id < 0 && ssid)
 551                 network_id = ssid->id;
 552         if (!client)
 553                 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
 554 }
 555
 556
 557 static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
 558                                            unsigned int freq,
 559                                            const u8 *dst, const u8 *src,
 560                                            const u8 *bssid,
 561                                            const u8 *data, size_t data_len,
 562                                            enum offchannel_send_action_result
 563                                            result)
 564 {
 565         enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
 566
 567         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
 568                 return;
 569         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
 570                 return;
 571
 572         switch (result) {
 573         case OFFCHANNEL_SEND_ACTION_SUCCESS:
 574                 res = P2P_SEND_ACTION_SUCCESS;
 575                 break;
 576         case OFFCHANNEL_SEND_ACTION_NO_ACK:
 577                 res = P2P_SEND_ACTION_NO_ACK;
 578                 break;
 579         case OFFCHANNEL_SEND_ACTION_FAILED:
 580                 res = P2P_SEND_ACTION_FAILED;
 581                 break;
 582         }
 583
 584         p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
 585
 586         if (wpa_s->pending_pd_before_join &&
 587             (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
 588              os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
 589                 wpa_s->pending_pd_before_join = 0;
 590                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
 591                            "join-existing-group operation");
 592                 wpas_p2p_join_start(wpa_s);
 593         }
 594 }
 595
 596
 597 static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
 598                             const u8 *src, const u8 *bssid, const u8 *buf,
 599                             size_t len, unsigned int wait_time)
 600 {
 601         struct wpa_supplicant *wpa_s = ctx;
 602         return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
 603                                       wait_time,
 604                                       wpas_p2p_send_action_tx_status, 1);
 605 }
 606
 607
 608 static void wpas_send_action_done(void *ctx)
 609 {
 610         struct wpa_supplicant *wpa_s = ctx;
 611         offchannel_send_action_done(wpa_s);
 612 }
 613
 614
 615 static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
 616                                     struct p2p_go_neg_results *params)
 617 {
 618         if (wpa_s->go_params == NULL) {
 619                 wpa_s->go_params = os_malloc(sizeof(*params));
 620                 if (wpa_s->go_params == NULL)
 621                         return -1;
 622         }
 623         os_memcpy(wpa_s->go_params, params, sizeof(*params));
 624         return 0;
 625 }
 626
 627
 628 static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
 629                                     struct p2p_go_neg_results *res)
 630 {
 631         wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
 632                    MAC2STR(res->peer_interface_addr));
 633         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
 634                           res->ssid, res->ssid_len);
 635         wpa_supplicant_ap_deinit(wpa_s);
 636         wpas_copy_go_neg_results(wpa_s, res);
 637         if (res->wps_method == WPS_PBC)
 638                 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
 639         else {
 640                 u16 dev_pw_id = DEV_PW_DEFAULT;
 641                 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
 642                         dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
 643                 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
 644                                    wpa_s->p2p_pin, 1, dev_pw_id);
 645         }
 646 }
 647
 648
 649 static void p2p_go_configured(void *ctx, void *data)
 650 {
 651         struct wpa_supplicant *wpa_s = ctx;
 652         struct p2p_go_neg_results *params = data;
 653         struct wpa_ssid *ssid;
 654         int network_id = -1;
 655
 656         ssid = wpa_s->current_ssid;
 657         if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
 658                 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
 659                 if (wpa_s->global->p2p_group_formation == wpa_s)
 660                         wpa_s->global->p2p_group_formation = NULL;
 661                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
 662                         "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
 663                         "go_dev_addr=" MACSTR "%s",
 664                         wpa_s->ifname,
 665                         wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
 666                         ssid->frequency,
 667                         params->passphrase ? params->passphrase : "",
 668                         MAC2STR(wpa_s->parent->own_addr),
 669                         params->persistent_group ? " [PERSISTENT]" : "");
 670
 671                 if (params->persistent_group)
 672                         network_id = wpas_p2p_store_persistent_group(
 673                                 wpa_s->parent, ssid,
 674                                 wpa_s->parent->own_addr);
 675                 if (network_id < 0)
 676                         network_id = ssid->id;
 677                 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
 678                 wpas_p2p_cross_connect_setup(wpa_s);
 679                 wpas_p2p_set_group_idle_timeout(wpa_s);
 680                 return;
 681         }
 682
 683         wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
 684         if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
 685                                               params->peer_interface_addr)) {
 686                 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
 687                            "filtering");
 688                 return;
 689         }
 690         if (params->wps_method == WPS_PBC)
 691                 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
 692                                           params->peer_device_addr);
 693         else if (wpa_s->p2p_pin[0])
 694                 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
 695                                           wpa_s->p2p_pin, NULL, 0);
 696         os_free(wpa_s->go_params);
 697         wpa_s->go_params = NULL;
 698 }
 699
 700
 701 static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
 702                               struct p2p_go_neg_results *params,
 703                               int group_formation)
 704 {
 705         struct wpa_ssid *ssid;
 706
 707         if (wpas_copy_go_neg_results(wpa_s, params) < 0)
 708                 return;
 709
 710         ssid = wpa_config_add_network(wpa_s->conf);
 711         if (ssid == NULL)
 712                 return;
 713
 714         wpa_s->show_group_started = 0;
 715
 716         wpa_config_set_network_defaults(ssid);
 717         ssid->temporary = 1;
 718         ssid->p2p_group = 1;
 719         ssid->p2p_persistent_group = params->persistent_group;
 720         ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
 721                 WPAS_MODE_P2P_GO;
 722         ssid->frequency = params->freq;
 723         ssid->ssid = os_zalloc(params->ssid_len + 1);
 724         if (ssid->ssid) {
 725                 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
 726                 ssid->ssid_len = params->ssid_len;
 727         }
 728         ssid->auth_alg = WPA_AUTH_ALG_OPEN;
 729         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
 730         ssid->proto = WPA_PROTO_RSN;
 731         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
 732         ssid->passphrase = os_strdup(params->passphrase);
 733
 734         wpa_s->ap_configured_cb = p2p_go_configured;
 735         wpa_s->ap_configured_cb_ctx = wpa_s;
 736         wpa_s->ap_configured_cb_data = wpa_s->go_params;
 737         wpa_s->connect_without_scan = ssid;
 738         wpa_s->reassociate = 1;
 739         wpa_s->disconnected = 0;
 740         wpa_supplicant_req_scan(wpa_s, 0, 0);
 741 }
 742
 743
 744 static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
 745                                   const struct wpa_supplicant *src)
 746 {
 747         struct wpa_config *d;
 748         const struct wpa_config *s;
 749
 750         d = dst->conf;
 751         s = src->conf;
 752
 753 #define C(n) if (s->n) d->n = os_strdup(s->n)
 754         C(device_name);
 755         C(manufacturer);
 756         C(model_name);
 757         C(model_number);
 758         C(serial_number);
 759         C(config_methods);
 760 #undef C
 761
 762         os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
 763         os_memcpy(d->sec_device_type, s->sec_device_type,
 764                   sizeof(d->sec_device_type));
 765         d->num_sec_device_types = s->num_sec_device_types;
 766
 767         d->p2p_group_idle = s->p2p_group_idle;
 768         d->p2p_intra_bss = s->p2p_intra_bss;
 769         d->persistent_reconnect = s->persistent_reconnect;
 770 }
 771
 772
 773 static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
 774                                         enum wpa_driver_if_type type)
 775 {
 776         char ifname[120], force_ifname[120];
 777
 778         if (wpa_s->pending_interface_name[0]) {
 779                 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
 780                            "- skip creation of a new one");
 781                 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
 782                         wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
 783                                    "unknown?! ifname='%s'",
 784                                    wpa_s->pending_interface_name);
 785                         return -1;
 786                 }
 787                 return 0;
 788         }
 789
 790         os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
 791                     wpa_s->p2p_group_idx);
 792         if (os_strlen(ifname) >= IFNAMSIZ &&
 793             os_strlen(wpa_s->ifname) < IFNAMSIZ) {
 794                 /* Try to avoid going over the IFNAMSIZ length limit */
 795                 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
 796                             wpa_s->p2p_group_idx);
 797         }
 798         force_ifname[0] = '\0';
 799
 800         wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
 801                    ifname);
 802         wpa_s->p2p_group_idx++;
 803
 804         wpa_s->pending_interface_type = type;
 805         if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
 806                            wpa_s->pending_interface_addr, NULL) < 0) {
 807                 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
 808                            "interface");
 809                 return -1;
 810         }
 811
 812         if (force_ifname[0]) {
 813                 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
 814                            force_ifname);
 815                 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
 816                            sizeof(wpa_s->pending_interface_name));
 817         } else
 818                 os_strlcpy(wpa_s->pending_interface_name, ifname,
 819                            sizeof(wpa_s->pending_interface_name));
 820         wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
 821                    MACSTR, wpa_s->pending_interface_name,
 822                    MAC2STR(wpa_s->pending_interface_addr));
 823
 824         return 0;
 825 }
 826
 827
 828 static void wpas_p2p_remove_pending_group_interface(
 829         struct wpa_supplicant *wpa_s)
 830 {
 831         if (!wpa_s->pending_interface_name[0] ||
 832             is_zero_ether_addr(wpa_s->pending_interface_addr))
 833                 return; /* No pending virtual interface */
 834
 835         wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
 836                    wpa_s->pending_interface_name);
 837         wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
 838                           wpa_s->pending_interface_name);
 839         os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
 840         wpa_s->pending_interface_name[0] = '\0';
 841 }
 842
 843
 844 static struct wpa_supplicant *
 845 wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
 846 {
 847         struct wpa_interface iface;
 848         struct wpa_supplicant *group_wpa_s;
 849
 850         if (!wpa_s->pending_interface_name[0]) {
 851                 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
 852                 if (!wpas_p2p_create_iface(wpa_s))
 853                         return NULL;
 854                 /*
 855                  * Something has forced us to remove the pending interface; try
 856                  * to create a new one and hope for the best that we will get
 857                  * the same local address.
 858                  */
 859                 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
 860                                                  WPA_IF_P2P_CLIENT) < 0)
 861                         return NULL;
 862         }
 863
 864         os_memset(&iface, 0, sizeof(iface));
 865         iface.ifname = wpa_s->pending_interface_name;
 866         iface.driver = wpa_s->driver->name;
 867         iface.ctrl_interface = wpa_s->conf->ctrl_interface;
 868         iface.driver_param = wpa_s->conf->driver_param;
 869         group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
 870         if (group_wpa_s == NULL) {
 871                 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
 872                            "wpa_supplicant interface");
 873                 return NULL;
 874         }
 875         wpa_s->pending_interface_name[0] = '\0';
 876         group_wpa_s->parent = wpa_s;
 877         group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
 878                 P2P_GROUP_INTERFACE_CLIENT;
 879         wpa_s->global->p2p_group_formation = group_wpa_s;
 880
 881         wpas_p2p_clone_config(group_wpa_s, wpa_s);
 882
 883         return group_wpa_s;
 884 }
 885
 886
 887 static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
 888                                              void *timeout_ctx)
 889 {
 890         struct wpa_supplicant *wpa_s = eloop_ctx;
 891         wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
 892         if (wpa_s->global->p2p)
 893                 p2p_group_formation_failed(wpa_s->global->p2p);
 894         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
 895                 wpa_drv_p2p_group_formation_failed(wpa_s);
 896         wpas_group_formation_completed(wpa_s, 0);
 897 }
 898
 899
 900 void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
 901 {
 902         struct wpa_supplicant *wpa_s = ctx;
 903
 904         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
 905                 wpa_drv_cancel_remain_on_channel(wpa_s);
 906                 wpa_s->off_channel_freq = 0;
 907                 wpa_s->roc_waiting_drv_freq = 0;
 908         }
 909
 910         if (res->status) {
 911                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
 912                         res->status);
 913                 wpas_notify_p2p_go_neg_completed(wpa_s, res->status);
 914                 wpas_p2p_remove_pending_group_interface(wpa_s);
 915                 return;
 916         }
 917
 918         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
 919         wpas_notify_p2p_go_neg_completed(wpa_s, P2P_SC_SUCCESS);
 920
 921         if (wpa_s->create_p2p_iface) {
 922                 struct wpa_supplicant *group_wpa_s =
 923                         wpas_p2p_init_group_interface(wpa_s, res->role_go);
 924                 if (group_wpa_s == NULL) {
 925                         wpas_p2p_remove_pending_group_interface(wpa_s);
 926                         return;
 927                 }
 928                 if (group_wpa_s != wpa_s) {
 929                         os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
 930                                   sizeof(group_wpa_s->p2p_pin));
 931                         group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
 932                 }
 933                 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
 934                 wpa_s->pending_interface_name[0] = '\0';
 935                 group_wpa_s->p2p_in_provisioning = 1;
 936
 937                 if (res->role_go)
 938                         wpas_start_wps_go(group_wpa_s, res, 1);
 939                 else
 940                         wpas_start_wps_enrollee(group_wpa_s, res);
 941         } else {
 942                 wpa_s->p2p_in_provisioning = 1;
 943                 wpa_s->global->p2p_group_formation = wpa_s;
 944
 945                 if (res->role_go)
 946                         wpas_start_wps_go(wpa_s, res, 1);
 947                 else
 948                         wpas_start_wps_enrollee(ctx, res);
 949         }
 950
 951         wpa_s->p2p_long_listen = 0;
 952         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
 953
 954         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
 955         eloop_register_timeout(15 + res->peer_config_timeout / 100,
 956                                (res->peer_config_timeout % 100) * 10000,
 957                                wpas_p2p_group_formation_timeout, wpa_s, NULL);
 958 }
 959
 960
 961 void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
 962 {
 963         struct wpa_supplicant *wpa_s = ctx;
 964         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
 965                 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
 966
 967         wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
 968 }
 969
 970
 971 void wpas_dev_found(void *ctx, const u8 *addr,
 972                     const struct p2p_peer_info *info,
 973                     int new_device)
 974 {
 975         struct wpa_supplicant *wpa_s = ctx;
 976         char devtype[WPS_DEV_TYPE_BUFSIZE];
 977
 978         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
 979                 " p2p_dev_addr=" MACSTR
 980                 " pri_dev_type=%s name='%s' config_methods=0x%x "
 981                 "dev_capab=0x%x group_capab=0x%x",
 982                 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
 983                 wps_dev_type_bin2str(info->pri_dev_type, devtype,
 984                                      sizeof(devtype)),
 985                 info->device_name, info->config_methods,
 986                 info->dev_capab, info->group_capab);
 987
 988         wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
 989 }
 990
 991
 992 static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
 993 {
 994         struct wpa_supplicant *wpa_s = ctx;
 995
 996         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
 997                 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
 998
 999         wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1000 }
1001
1002
1003 static int wpas_start_listen(void *ctx, unsigned int freq,
1004                              unsigned int duration,
1005                              const struct wpabuf *probe_resp_ie)
1006 {
1007         struct wpa_supplicant *wpa_s = ctx;
1008
1009         wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1010
1011         if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1012                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1013                            "report received Probe Request frames");
1014                 return -1;
1015         }
1016
1017         wpa_s->pending_listen_freq = freq;
1018         wpa_s->pending_listen_duration = duration;
1019
1020         if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1021                 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1022                            "to remain on channel (%u MHz) for Listen "
1023                            "state", freq);
1024                 wpa_s->pending_listen_freq = 0;
1025                 return -1;
1026         }
1027         wpa_s->off_channel_freq = 0;
1028         wpa_s->roc_waiting_drv_freq = freq;
1029
1030         return 0;
1031 }
1032
1033
1034 static void wpas_stop_listen(void *ctx)
1035 {
1036         struct wpa_supplicant *wpa_s = ctx;
1037         if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1038                 wpa_drv_cancel_remain_on_channel(wpa_s);
1039                 wpa_s->off_channel_freq = 0;
1040                 wpa_s->roc_waiting_drv_freq = 0;
1041         }
1042         wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1043         wpa_drv_probe_req_report(wpa_s, 0);
1044 }
1045
1046
1047 static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1048 {
1049         struct wpa_supplicant *wpa_s = ctx;
1050         return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
1051 }
1052
1053
1054 static struct p2p_srv_bonjour *
1055 wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1056                              const struct wpabuf *query)
1057 {
1058         struct p2p_srv_bonjour *bsrv;
1059         size_t len;
1060
1061         len = wpabuf_len(query);
1062         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1063                          struct p2p_srv_bonjour, list) {
1064                 if (len == wpabuf_len(bsrv->query) &&
1065                     os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1066                               len) == 0)
1067                         return bsrv;
1068         }
1069         return NULL;
1070 }
1071
1072
1073 static struct p2p_srv_upnp *
1074 wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1075                           const char *service)
1076 {
1077         struct p2p_srv_upnp *usrv;
1078
1079         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1080                          struct p2p_srv_upnp, list) {
1081                 if (version == usrv->version &&
1082                     os_strcmp(service, usrv->service) == 0)
1083                         return usrv;
1084         }
1085         return NULL;
1086 }
1087
1088
1089 static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1090                                         u8 srv_trans_id)
1091 {
1092         u8 *len_pos;
1093
1094         if (wpabuf_tailroom(resp) < 5)
1095                 return;
1096
1097         /* Length (to be filled) */
1098         len_pos = wpabuf_put(resp, 2);
1099         wpabuf_put_u8(resp, srv_proto);
1100         wpabuf_put_u8(resp, srv_trans_id);
1101         /* Status Code */
1102         wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1103         /* Response Data: empty */
1104         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1105 }
1106
1107
1108 static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1109                                 struct wpabuf *resp, u8 srv_trans_id)
1110 {
1111         struct p2p_srv_bonjour *bsrv;
1112         u8 *len_pos;
1113
1114         wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1115
1116         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1117                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1118                 return;
1119         }
1120
1121         dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1122                          struct p2p_srv_bonjour, list) {
1123                 if (wpabuf_tailroom(resp) <
1124                     5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1125                         return;
1126                 /* Length (to be filled) */
1127                 len_pos = wpabuf_put(resp, 2);
1128                 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1129                 wpabuf_put_u8(resp, srv_trans_id);
1130                 /* Status Code */
1131                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1132                 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1133                                   wpabuf_head(bsrv->resp),
1134                                   wpabuf_len(bsrv->resp));
1135                 /* Response Data */
1136                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1137                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1138                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1139                              2);
1140         }
1141 }
1142
1143
1144 static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1145                                 struct wpabuf *resp, u8 srv_trans_id,
1146                                 const u8 *query, size_t query_len)
1147 {
1148         struct p2p_srv_bonjour *bsrv;
1149         struct wpabuf buf;
1150         u8 *len_pos;
1151
1152         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1153                           query, query_len);
1154         if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1155                 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1156                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1157                                             srv_trans_id);
1158                 return;
1159         }
1160
1161         if (query_len == 0) {
1162                 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1163                 return;
1164         }
1165
1166         if (wpabuf_tailroom(resp) < 5)
1167                 return;
1168         /* Length (to be filled) */
1169         len_pos = wpabuf_put(resp, 2);
1170         wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1171         wpabuf_put_u8(resp, srv_trans_id);
1172
1173         wpabuf_set(&buf, query, query_len);
1174         bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1175         if (bsrv == NULL) {
1176                 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1177                            "available");
1178
1179                 /* Status Code */
1180                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1181                 /* Response Data: empty */
1182                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1183                              2);
1184                 return;
1185         }
1186
1187         /* Status Code */
1188         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1189         wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1190                           wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1191
1192         if (wpabuf_tailroom(resp) >=
1193             wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1194                 /* Response Data */
1195                 wpabuf_put_buf(resp, bsrv->query); /* Key */
1196                 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1197         }
1198         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1199 }
1200
1201
1202 static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1203                              struct wpabuf *resp, u8 srv_trans_id)
1204 {
1205         struct p2p_srv_upnp *usrv;
1206         u8 *len_pos;
1207
1208         wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1209
1210         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1211                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1212                 return;
1213         }
1214
1215         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1216                          struct p2p_srv_upnp, list) {
1217                 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1218                         return;
1219
1220                 /* Length (to be filled) */
1221                 len_pos = wpabuf_put(resp, 2);
1222                 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1223                 wpabuf_put_u8(resp, srv_trans_id);
1224
1225                 /* Status Code */
1226                 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1227                 /* Response Data */
1228                 wpabuf_put_u8(resp, usrv->version);
1229                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1230                            usrv->service);
1231                 wpabuf_put_str(resp, usrv->service);
1232                 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1233                              2);
1234         }
1235 }
1236
1237
1238 static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1239                              struct wpabuf *resp, u8 srv_trans_id,
1240                              const u8 *query, size_t query_len)
1241 {
1242         struct p2p_srv_upnp *usrv;
1243         u8 *len_pos;
1244         u8 version;
1245         char *str;
1246         int count = 0;
1247
1248         wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1249                           query, query_len);
1250
1251         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1252                 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1253                 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1254                                             srv_trans_id);
1255                 return;
1256         }
1257
1258         if (query_len == 0) {
1259                 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1260                 return;
1261         }
1262
1263         if (wpabuf_tailroom(resp) < 5)
1264                 return;
1265
1266         /* Length (to be filled) */
1267         len_pos = wpabuf_put(resp, 2);
1268         wpabuf_put_u8(resp, P2P_SERV_UPNP);
1269         wpabuf_put_u8(resp, srv_trans_id);
1270
1271         version = query[0];
1272         str = os_malloc(query_len);
1273         if (str == NULL)
1274                 return;
1275         os_memcpy(str, query + 1, query_len - 1);
1276         str[query_len - 1] = '\0';
1277
1278         dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1279                          struct p2p_srv_upnp, list) {
1280                 if (version != usrv->version)
1281                         continue;
1282
1283                 if (os_strcmp(str, "ssdp:all") != 0 &&
1284                     os_strstr(usrv->service, str) == NULL)
1285                         continue;
1286
1287                 if (wpabuf_tailroom(resp) < 2)
1288                         break;
1289                 if (count == 0) {
1290                         /* Status Code */
1291                         wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1292                         /* Response Data */
1293                         wpabuf_put_u8(resp, version);
1294                 } else
1295                         wpabuf_put_u8(resp, ',');
1296
1297                 count++;
1298
1299                 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1300                            usrv->service);
1301                 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1302                         break;
1303                 wpabuf_put_str(resp, usrv->service);
1304         }
1305         os_free(str);
1306
1307         if (count == 0) {
1308                 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1309                            "available");
1310                 /* Status Code */
1311                 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1312                 /* Response Data: empty */
1313         }
1314
1315         WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1316 }
1317
1318
1319 void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1320                      u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1321 {
1322         struct wpa_supplicant *wpa_s = ctx;
1323         const u8 *pos = tlvs;
1324         const u8 *end = tlvs + tlvs_len;
1325         const u8 *tlv_end;
1326         u16 slen;
1327         struct wpabuf *resp;
1328         u8 srv_proto, srv_trans_id;
1329         size_t buf_len;
1330         char *buf;
1331
1332         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1333                     tlvs, tlvs_len);
1334         buf_len = 2 * tlvs_len + 1;
1335         buf = os_malloc(buf_len);
1336         if (buf) {
1337                 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1338                 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1339                              MACSTR " %u %u %s",
1340                              freq, MAC2STR(sa), dialog_token, update_indic,
1341                              buf);
1342                 os_free(buf);
1343         }
1344
1345         if (wpa_s->p2p_sd_over_ctrl_iface)
1346                 return; /* to be processed by an external program */
1347
1348         resp = wpabuf_alloc(10000);
1349         if (resp == NULL)
1350                 return;
1351
1352         while (pos + 1 < end) {
1353                 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1354                 slen = WPA_GET_LE16(pos);
1355                 pos += 2;
1356                 if (pos + slen > end || slen < 2) {
1357                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1358                                    "length");
1359                         wpabuf_free(resp);
1360                         return;
1361                 }
1362                 tlv_end = pos + slen;
1363
1364                 srv_proto = *pos++;
1365                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1366                            srv_proto);
1367                 srv_trans_id = *pos++;
1368                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1369                            srv_trans_id);
1370
1371                 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1372                             pos, tlv_end - pos);
1373
1374
1375                 if (wpa_s->force_long_sd) {
1376                         wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1377                                    "response");
1378                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1379                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1380                         goto done;
1381                 }
1382
1383                 switch (srv_proto) {
1384                 case P2P_SERV_ALL_SERVICES:
1385                         wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1386                                    "for all services");
1387                         if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1388                             dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1389                                 wpa_printf(MSG_DEBUG, "P2P: No service "
1390                                            "discovery protocols available");
1391                                 wpas_sd_add_proto_not_avail(
1392                                         resp, P2P_SERV_ALL_SERVICES,
1393                                         srv_trans_id);
1394                                 break;
1395                         }
1396                         wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1397                         wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1398                         break;
1399                 case P2P_SERV_BONJOUR:
1400                         wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1401                                             pos, tlv_end - pos);
1402                         break;
1403                 case P2P_SERV_UPNP:
1404                         wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1405                                          pos, tlv_end - pos);
1406                         break;
1407                 default:
1408                         wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1409                                    "protocol %u", srv_proto);
1410                         wpas_sd_add_proto_not_avail(resp, srv_proto,
1411                                                     srv_trans_id);
1412                         break;
1413                 }
1414
1415                 pos = tlv_end;
1416         }
1417
1418 done:
1419         wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1420                                    update_indic, tlvs, tlvs_len);
1421
1422         wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1423
1424         wpabuf_free(resp);
1425 }
1426
1427
1428 void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1429                       const u8 *tlvs, size_t tlvs_len)
1430 {
1431         struct wpa_supplicant *wpa_s = ctx;
1432         const u8 *pos = tlvs;
1433         const u8 *end = tlvs + tlvs_len;
1434         const u8 *tlv_end;
1435         u16 slen;
1436         size_t buf_len;
1437         char *buf;
1438
1439         wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1440                     tlvs, tlvs_len);
1441         if (tlvs_len > 1500) {
1442                 /* TODO: better way for handling this */
1443                 wpa_msg_ctrl(wpa_s, MSG_INFO,
1444                              P2P_EVENT_SERV_DISC_RESP MACSTR
1445                              " %u <long response: %u bytes>",
1446                              MAC2STR(sa), update_indic,
1447                              (unsigned int) tlvs_len);
1448         } else {
1449                 buf_len = 2 * tlvs_len + 1;
1450                 buf = os_malloc(buf_len);
1451                 if (buf) {
1452                         wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1453                         wpa_msg_ctrl(wpa_s, MSG_INFO,
1454                                      P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1455                                      MAC2STR(sa), update_indic, buf);
1456                         os_free(buf);
1457                 }
1458         }
1459
1460         while (pos < end) {
1461                 u8 srv_proto, srv_trans_id, status;
1462
1463                 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1464                 slen = WPA_GET_LE16(pos);
1465                 pos += 2;
1466                 if (pos + slen > end || slen < 3) {
1467                         wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1468                                    "length");
1469                         return;
1470                 }
1471                 tlv_end = pos + slen;
1472
1473                 srv_proto = *pos++;
1474                 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1475                            srv_proto);
1476                 srv_trans_id = *pos++;
1477                 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1478                            srv_trans_id);
1479                 status = *pos++;
1480                 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1481                            status);
1482
1483                 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1484                             pos, tlv_end - pos);
1485
1486                 pos = tlv_end;
1487         }
1488
1489         wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
1490 }
1491
1492
1493 void * wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1494                            const struct wpabuf *tlvs)
1495 {
1496         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1497                 return (void *) wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
1498         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1499                 return NULL;
1500         return p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1501 }
1502
1503
1504 void * wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1505                                 u8 version, const char *query)
1506 {
1507         struct wpabuf *tlvs;
1508         void *ret;
1509
1510         tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1511         if (tlvs == NULL)
1512                 return NULL;
1513         wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1514         wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1515         wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1516         wpabuf_put_u8(tlvs, version);
1517         wpabuf_put_str(tlvs, query);
1518         ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1519         wpabuf_free(tlvs);
1520         return ret;
1521 }
1522
1523
1524 int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, void *req)
1525 {
1526         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1527                 return wpa_drv_p2p_sd_cancel_request(wpa_s, (u64) req);
1528         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1529                 return -1;
1530         return p2p_sd_cancel_request(wpa_s->global->p2p, req);
1531 }
1532
1533
1534 void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1535                           const u8 *dst, u8 dialog_token,
1536                           const struct wpabuf *resp_tlvs)
1537 {
1538         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1539                 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1540                                         resp_tlvs);
1541                 return;
1542         }
1543         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1544                 return;
1545         p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1546                         resp_tlvs);
1547 }
1548
1549
1550 void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1551 {
1552         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1553                 wpa_drv_p2p_service_update(wpa_s);
1554                 return;
1555         }
1556         if (wpa_s->global->p2p)
1557                 p2p_sd_service_update(wpa_s->global->p2p);
1558 }
1559
1560
1561 static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1562 {
1563         dl_list_del(&bsrv->list);
1564         wpabuf_free(bsrv->query);
1565         wpabuf_free(bsrv->resp);
1566         os_free(bsrv);
1567 }
1568
1569
1570 static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1571 {
1572         dl_list_del(&usrv->list);
1573         os_free(usrv->service);
1574         os_free(usrv);
1575 }
1576
1577
1578 void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1579 {
1580         struct p2p_srv_bonjour *bsrv, *bn;
1581         struct p2p_srv_upnp *usrv, *un;
1582
1583         dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1584                               struct p2p_srv_bonjour, list)
1585                 wpas_p2p_srv_bonjour_free(bsrv);
1586
1587         dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1588                               struct p2p_srv_upnp, list)
1589                 wpas_p2p_srv_upnp_free(usrv);
1590
1591         wpas_p2p_sd_service_update(wpa_s);
1592 }
1593
1594
1595 int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1596                                  struct wpabuf *query, struct wpabuf *resp)
1597 {
1598         struct p2p_srv_bonjour *bsrv;
1599
1600         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1601         if (bsrv) {
1602                 wpabuf_free(query);
1603                 wpabuf_free(bsrv->resp);
1604                 bsrv->resp = resp;
1605                 return 0;
1606         }
1607
1608         bsrv = os_zalloc(sizeof(*bsrv));
1609         if (bsrv == NULL)
1610                 return -1;
1611         bsrv->query = query;
1612         bsrv->resp = resp;
1613         dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1614
1615         wpas_p2p_sd_service_update(wpa_s);
1616         return 0;
1617 }
1618
1619
1620 int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1621                                  const struct wpabuf *query)
1622 {
1623         struct p2p_srv_bonjour *bsrv;
1624
1625         bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1626         if (bsrv == NULL)
1627                 return -1;
1628         wpas_p2p_srv_bonjour_free(bsrv);
1629         wpas_p2p_sd_service_update(wpa_s);
1630         return 0;
1631 }
1632
1633
1634 int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1635                               const char *service)
1636 {
1637         struct p2p_srv_upnp *usrv;
1638
1639         if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1640                 return 0; /* Already listed */
1641         usrv = os_zalloc(sizeof(*usrv));
1642         if (usrv == NULL)
1643                 return -1;
1644         usrv->version = version;
1645         usrv->service = os_strdup(service);
1646         if (usrv->service == NULL) {
1647                 os_free(usrv);
1648                 return -1;
1649         }
1650         dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1651
1652         wpas_p2p_sd_service_update(wpa_s);
1653         return 0;
1654 }
1655
1656
1657 int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1658                               const char *service)
1659 {
1660         struct p2p_srv_upnp *usrv;
1661
1662         usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1663         if (usrv == NULL)
1664                 return -1;
1665         wpas_p2p_srv_upnp_free(usrv);
1666         wpas_p2p_sd_service_update(wpa_s);
1667         return 0;
1668 }
1669
1670
1671 static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
1672                                          const u8 *peer, const char *params,
1673                                          unsigned int generated_pin)
1674 {
1675         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
1676                 MAC2STR(peer), generated_pin, params);
1677 }
1678
1679
1680 static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1681                                         const u8 *peer, const char *params)
1682 {
1683         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1684                 MAC2STR(peer), params);
1685 }
1686
1687
1688 void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1689                         const u8 *dev_addr, const u8 *pri_dev_type,
1690                         const char *dev_name, u16 supp_config_methods,
1691                         u8 dev_capab, u8 group_capab, const u8 *group_id,
1692                         size_t group_id_len)
1693 {
1694         struct wpa_supplicant *wpa_s = ctx;
1695         char devtype[WPS_DEV_TYPE_BUFSIZE];
1696         char params[300];
1697         u8 empty_dev_type[8];
1698         unsigned int generated_pin = 0;
1699         struct wpa_supplicant *group = NULL;
1700
1701         if (group_id) {
1702                 for (group = wpa_s->global->ifaces; group; group = group->next)
1703                 {
1704                         struct wpa_ssid *s = group->current_ssid;
1705                         if (s != NULL &&
1706                             s->mode == WPAS_MODE_P2P_GO &&
1707                             group_id_len - ETH_ALEN == s->ssid_len &&
1708                             os_memcmp(group_id + ETH_ALEN, s->ssid,
1709                                       s->ssid_len) == 0)
1710                                 break;
1711                 }
1712         }
1713
1714         if (pri_dev_type == NULL) {
1715                 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1716                 pri_dev_type = empty_dev_type;
1717         }
1718         os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1719                     " pri_dev_type=%s name='%s' config_methods=0x%x "
1720                     "dev_capab=0x%x group_capab=0x%x%s%s",
1721                     MAC2STR(dev_addr),
1722                     wps_dev_type_bin2str(pri_dev_type, devtype,
1723                                          sizeof(devtype)),
1724                     dev_name, supp_config_methods, dev_capab, group_capab,
1725                     group ? " group=" : "",
1726                     group ? group->ifname : "");
1727         params[sizeof(params) - 1] = '\0';
1728
1729         if (config_methods & WPS_CONFIG_DISPLAY) {
1730                 generated_pin = wps_generate_pin();
1731                 wpas_prov_disc_local_display(wpa_s, peer, params,
1732                                              generated_pin);
1733         } else if (config_methods & WPS_CONFIG_KEYPAD)
1734                 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1735         else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1736                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1737                         "%s", MAC2STR(peer), params);
1738
1739         wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
1740                                             P2P_PROV_DISC_SUCCESS,
1741                                             config_methods, generated_pin);
1742 }
1743
1744
1745 void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1746 {
1747         struct wpa_supplicant *wpa_s = ctx;
1748         unsigned int generated_pin = 0;
1749
1750         if (config_methods & WPS_CONFIG_DISPLAY)
1751                 wpas_prov_disc_local_keypad(wpa_s, peer, "");
1752         else if (config_methods & WPS_CONFIG_KEYPAD) {
1753                 generated_pin = wps_generate_pin();
1754                 wpas_prov_disc_local_display(wpa_s, peer, "", generated_pin);
1755         } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1756                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1757                         MAC2STR(peer));
1758
1759         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1760                                             P2P_PROV_DISC_SUCCESS,
1761                                             config_methods, generated_pin);
1762
1763         if (wpa_s->pending_pd_before_join &&
1764             (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1765              os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
1766                 wpa_s->pending_pd_before_join = 0;
1767                 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
1768                            "join-existing-group operation");
1769                 wpas_p2p_join_start(wpa_s);
1770         }
1771 }
1772
1773
1774 static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
1775                                 enum p2p_prov_disc_status status)
1776 {
1777         struct wpa_supplicant *wpa_s = ctx;
1778
1779         wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1780                                             status, 0, 0);
1781 }
1782
1783
1784 static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1785                                   const u8 *go_dev_addr, const u8 *ssid,
1786                                   size_t ssid_len, int *go, u8 *group_bssid,
1787                                   int *force_freq, int persistent_group)
1788 {
1789         struct wpa_supplicant *wpa_s = ctx;
1790         struct wpa_ssid *s;
1791         u8 cur_bssid[ETH_ALEN];
1792         int res;
1793         struct wpa_supplicant *grp;
1794
1795         if (!persistent_group) {
1796                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1797                            " to join an active group", MAC2STR(sa));
1798                 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
1799                     (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
1800                      == 0 ||
1801                      os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
1802                         wpa_printf(MSG_DEBUG, "P2P: Accept previously "
1803                                    "authorized invitation");
1804                         goto accept_inv;
1805                 }
1806                 /*
1807                  * Do not accept the invitation automatically; notify user and
1808                  * request approval.
1809                  */
1810                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1811         }
1812
1813         grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
1814         if (grp) {
1815                 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
1816                            "running persistent group");
1817                 if (*go)
1818                         os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
1819                 goto accept_inv;
1820         }
1821
1822         if (!wpa_s->conf->persistent_reconnect)
1823                 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1824
1825         for (s = wpa_s->conf->ssid; s; s = s->next) {
1826                 if (s->disabled == 2 &&
1827                     os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
1828                     s->ssid_len == ssid_len &&
1829                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
1830                         break;
1831         }
1832
1833         if (!s) {
1834                 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1835                            " requested reinvocation of an unknown group",
1836                            MAC2STR(sa));
1837                 return P2P_SC_FAIL_UNKNOWN_GROUP;
1838         }
1839
1840         if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
1841                 *go = 1;
1842                 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1843                         wpa_printf(MSG_DEBUG, "P2P: The only available "
1844                                    "interface is already in use - reject "
1845                                    "invitation");
1846                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1847                 }
1848                 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
1849         } else if (s->mode == WPAS_MODE_P2P_GO) {
1850                 *go = 1;
1851                 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
1852                 {
1853                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
1854                                    "interface address for the group");
1855                         return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1856                 }
1857                 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
1858                           ETH_ALEN);
1859         }
1860
1861 accept_inv:
1862         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
1863             wpa_s->assoc_freq) {
1864                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1865                            "the channel we are already using");
1866                 *force_freq = wpa_s->assoc_freq;
1867         }
1868
1869         res = wpa_drv_shared_freq(wpa_s);
1870         if (res > 0) {
1871                 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1872                            "with the channel we are already using on a "
1873                            "shared interface");
1874                 *force_freq = res;
1875         }
1876
1877         return P2P_SC_SUCCESS;
1878 }
1879
1880
1881 static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
1882                                      const u8 *ssid, size_t ssid_len,
1883                                      const u8 *go_dev_addr, u8 status,
1884                                      int op_freq)
1885 {
1886         struct wpa_supplicant *wpa_s = ctx;
1887         struct wpa_ssid *s;
1888
1889         for (s = wpa_s->conf->ssid; s; s = s->next) {
1890                 if (s->disabled == 2 &&
1891                     s->ssid_len == ssid_len &&
1892                     os_memcmp(ssid, s->ssid, ssid_len) == 0)
1893                         break;
1894         }
1895
1896         if (status == P2P_SC_SUCCESS) {
1897                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1898                            " was accepted; op_freq=%d MHz",
1899                            MAC2STR(sa), op_freq);
1900                 if (s) {
1901                         wpas_p2p_group_add_persistent(
1902                                 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
1903                 } else if (bssid) {
1904                         wpas_p2p_join(wpa_s, bssid, go_dev_addr,
1905                                       wpa_s->p2p_wps_method);
1906                 }
1907                 return;
1908         }
1909
1910         if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
1911                 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1912                            " was rejected (status %u)", MAC2STR(sa), status);
1913                 return;
1914         }
1915
1916         if (!s) {
1917                 if (bssid) {
1918                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1919                                 "sa=" MACSTR " go_dev_addr=" MACSTR
1920                                 " bssid=" MACSTR " unknown-network",
1921                                 MAC2STR(sa), MAC2STR(go_dev_addr),
1922                                 MAC2STR(bssid));
1923                 } else {
1924                         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1925                                 "sa=" MACSTR " go_dev_addr=" MACSTR
1926                                 " unknown-network",
1927                                 MAC2STR(sa), MAC2STR(go_dev_addr));
1928                 }
1929                 return;
1930         }
1931
1932         wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
1933                 " persistent=%d", MAC2STR(sa), s->id);
1934 }
1935
1936
1937 static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
1938 {
1939         struct wpa_supplicant *wpa_s = ctx;
1940         struct wpa_ssid *ssid;
1941
1942         if (bssid) {
1943                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1944                         "status=%d " MACSTR,
1945                         status, MAC2STR(bssid));
1946         } else {
1947                 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1948                         "status=%d ", status);
1949         }
1950         wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
1951
1952         if (wpa_s->pending_invite_ssid_id == -1)
1953                 return; /* Invitation to active group */
1954
1955         if (status != P2P_SC_SUCCESS) {
1956                 wpas_p2p_remove_pending_group_interface(wpa_s);
1957                 return;
1958         }
1959
1960         ssid = wpa_config_get_network(wpa_s->conf,
1961                                       wpa_s->pending_invite_ssid_id);
1962         if (ssid == NULL) {
1963                 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
1964                            "data matching with invitation");
1965                 return;
1966         }
1967
1968         wpas_p2p_group_add_persistent(wpa_s, ssid,
1969                                       ssid->mode == WPAS_MODE_P2P_GO, 0);
1970 }
1971
1972
1973 static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
1974                                      struct p2p_channels *chan)
1975 {
1976         int i, cla = 0;
1977
1978         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
1979                    "band");
1980
1981         /* Operating class 81 - 2.4 GHz band channels 1..13 */
1982         chan->reg_class[cla].reg_class = 81;
1983         chan->reg_class[cla].channels = 11;
1984         for (i = 0; i < 11; i++)
1985                 chan->reg_class[cla].channel[i] = i + 1;
1986         cla++;
1987
1988         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
1989                    "band");
1990
1991         /* Operating class 115 - 5 GHz, channels 36-48 */
1992         chan->reg_class[cla].reg_class = 115;
1993         chan->reg_class[cla].channels = 4;
1994         chan->reg_class[cla].channel[0] = 36;
1995         chan->reg_class[cla].channel[1] = 40;
1996         chan->reg_class[cla].channel[2] = 44;
1997         chan->reg_class[cla].channel[3] = 48;
1998         cla++;
1999
2000         wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2001                    "band");
2002
2003         /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2004         chan->reg_class[cla].reg_class = 124;
2005         chan->reg_class[cla].channels = 4;
2006         chan->reg_class[cla].channel[0] = 149;
2007         chan->reg_class[cla].channel[1] = 153;
2008         chan->reg_class[cla].channel[2] = 157;
2009         chan->reg_class[cla].channel[3] = 161;
2010         cla++;
2011
2012         chan->reg_classes = cla;
2013         return 0;
2014 }
2015
2016
2017 static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2018                                           u16 num_modes,
2019                                           enum hostapd_hw_mode mode)
2020 {
2021         u16 i;
2022
2023         for (i = 0; i < num_modes; i++) {
2024                 if (modes[i].mode == mode)
2025                         return &modes[i];
2026         }
2027
2028         return NULL;
2029 }
2030
2031
2032 static int has_channel(struct hostapd_hw_modes *mode, u8 chan, int *flags)
2033 {
2034         int i;
2035
2036         for (i = 0; i < mode->num_channels; i++) {
2037                 if (mode->channels[i].chan == chan) {
2038                         if (flags)
2039                                 *flags = mode->channels[i].flag;
2040                         return !(mode->channels[i].flag &
2041                                  (HOSTAPD_CHAN_DISABLED |
2042                                   HOSTAPD_CHAN_PASSIVE_SCAN |
2043                                   HOSTAPD_CHAN_NO_IBSS |
2044                                   HOSTAPD_CHAN_RADAR));
2045                 }
2046         }
2047
2048         return 0;
2049 }
2050
2051
2052 struct p2p_oper_class_map {
2053         enum hostapd_hw_mode mode;
2054         u8 op_class;
2055         u8 min_chan;
2056         u8 max_chan;
2057         u8 inc;
2058         enum { BW20, BW40PLUS, BW40MINUS } bw;
2059 };
2060
2061 static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
2062                                    struct p2p_channels *chan)
2063 {
2064         struct hostapd_hw_modes *mode;
2065         int cla, op;
2066         struct p2p_oper_class_map op_class[] = {
2067                 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2068                 { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 },
2069 #if 0 /* Do not enable HT40 on 2 GHz for now */
2070                 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2071                 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2072 #endif
2073                 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2074                 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2075                 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2076                 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2077                 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2078                 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2079                 { -1, 0, 0, 0, 0, BW20 }
2080         };
2081
2082         if (wpa_s->hw.modes == NULL) {
2083                 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2084                            "of all supported channels; assume dualband "
2085                            "support");
2086                 return wpas_p2p_default_channels(wpa_s, chan);
2087         }
2088
2089         cla = 0;
2090
2091         for (op = 0; op_class[op].op_class; op++) {
2092                 struct p2p_oper_class_map *o = &op_class[op];
2093                 u8 ch;
2094                 struct p2p_reg_class *reg = NULL;
2095
2096                 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
2097                 if (mode == NULL)
2098                         continue;
2099                 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2100                         int flag;
2101                         if (!has_channel(mode, ch, &flag))
2102                                 continue;
2103                         if (o->bw == BW40MINUS &&
2104                             (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2105                              !has_channel(mode, ch - 4, NULL)))
2106                                 continue;
2107                         if (o->bw == BW40PLUS &&
2108                             (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2109                              !has_channel(mode, ch + 4, NULL)))
2110                                 continue;
2111                         if (reg == NULL) {
2112                                 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2113                                            "class %u", o->op_class);
2114                                 reg = &chan->reg_class[cla];
2115                                 cla++;
2116                                 reg->reg_class = o->op_class;
2117                         }
2118                         reg->channel[reg->channels] = ch;
2119                         reg->channels++;
2120                 }
2121                 if (reg) {
2122                         wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2123                                     reg->channel, reg->channels);
2124                 }
2125         }
2126
2127         chan->reg_classes = cla;
2128
2129         return 0;
2130 }
2131
2132
2133 static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2134                         size_t buf_len)
2135 {
2136         struct wpa_supplicant *wpa_s = ctx;
2137
2138         for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2139                 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2140                         break;
2141         }
2142         if (wpa_s == NULL)
2143                 return -1;
2144
2145         return wpa_drv_get_noa(wpa_s, buf, buf_len);
2146 }
2147
2148
2149 /**
2150  * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2151  * @global: Pointer to global data from wpa_supplicant_init()
2152  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2153  * Returns: 0 on success, -1 on failure
2154  */
2155 int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2156 {
2157         struct p2p_config p2p;
2158         unsigned int r;
2159         int i;
2160
2161         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2162                 return 0;
2163
2164         if (global->p2p)
2165                 return 0;
2166
2167         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2168                 struct p2p_params params;
2169
2170                 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2171                 os_memset(&params, 0, sizeof(params));
2172                 params.dev_name = wpa_s->conf->device_name;
2173                 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2174                           WPS_DEV_TYPE_LEN);
2175                 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2176                 os_memcpy(params.sec_dev_type,
2177                           wpa_s->conf->sec_device_type,
2178                           params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2179
2180                 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
2181                         return -1;
2182
2183                 return 0;
2184         }
2185
2186         os_memset(&p2p, 0, sizeof(p2p));
2187         p2p.msg_ctx = wpa_s;
2188         p2p.cb_ctx = wpa_s;
2189         p2p.p2p_scan = wpas_p2p_scan;
2190         p2p.send_action = wpas_send_action;
2191         p2p.send_action_done = wpas_send_action_done;
2192         p2p.go_neg_completed = wpas_go_neg_completed;
2193         p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2194         p2p.dev_found = wpas_dev_found;
2195         p2p.dev_lost = wpas_dev_lost;
2196         p2p.start_listen = wpas_start_listen;
2197         p2p.stop_listen = wpas_stop_listen;
2198         p2p.send_probe_resp = wpas_send_probe_resp;
2199         p2p.sd_request = wpas_sd_request;
2200         p2p.sd_response = wpas_sd_response;
2201         p2p.prov_disc_req = wpas_prov_disc_req;
2202         p2p.prov_disc_resp = wpas_prov_disc_resp;
2203         p2p.prov_disc_fail = wpas_prov_disc_fail;
2204         p2p.invitation_process = wpas_invitation_process;
2205         p2p.invitation_received = wpas_invitation_received;
2206         p2p.invitation_result = wpas_invitation_result;
2207         p2p.get_noa = wpas_get_noa;
2208
2209         os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2210         os_memcpy(p2p.dev_addr, wpa_s->own_addr, ETH_ALEN);
2211         p2p.dev_name = wpa_s->conf->device_name;
2212         p2p.manufacturer = wpa_s->conf->manufacturer;
2213         p2p.model_name = wpa_s->conf->model_name;
2214         p2p.model_number = wpa_s->conf->model_number;
2215         p2p.serial_number = wpa_s->conf->serial_number;
2216         if (wpa_s->wps) {
2217                 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2218                 p2p.config_methods = wpa_s->wps->config_methods;
2219         }
2220
2221         if (wpa_s->conf->p2p_listen_reg_class &&
2222             wpa_s->conf->p2p_listen_channel) {
2223                 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2224                 p2p.channel = wpa_s->conf->p2p_listen_channel;
2225         } else {
2226                 p2p.reg_class = 81;
2227                 /*
2228                  * Pick one of the social channels randomly as the listen
2229                  * channel.
2230                  */
2231                 os_get_random((u8 *) &r, sizeof(r));
2232                 p2p.channel = 1 + (r % 3) * 5;
2233         }
2234         wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
2235
2236         if (wpa_s->conf->p2p_oper_reg_class &&
2237             wpa_s->conf->p2p_oper_channel) {
2238                 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2239                 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2240                 p2p.cfg_op_channel = 1;
2241                 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2242                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
2243
2244         } else {
2245                 p2p.op_reg_class = 81;
2246                 /*
2247                  * Use random operation channel from (1, 6, 11) if no other
2248                  * preference is indicated.
2249                  */
2250                 os_get_random((u8 *) &r, sizeof(r));
2251                 p2p.op_channel = 1 + (r % 3) * 5;
2252                 p2p.cfg_op_channel = 0;
2253                 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2254                            "%d:%d", p2p.op_reg_class, p2p.op_channel);
2255         }
2256         if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2257                 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2258                 p2p.country[2] = 0x04;
2259         } else
2260                 os_memcpy(p2p.country, "XX\x04", 3);
2261
2262         if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
2263                 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2264                            "channel list");
2265                 return -1;
2266         }
2267
2268         os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2269                   WPS_DEV_TYPE_LEN);
2270
2271         p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2272         os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2273                   p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2274
2275         p2p.concurrent_operations = !!(wpa_s->drv_flags &
2276                                        WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2277
2278         p2p.max_peers = 100;
2279
2280         if (wpa_s->conf->p2p_ssid_postfix) {
2281                 p2p.ssid_postfix_len =
2282                         os_strlen(wpa_s->conf->p2p_ssid_postfix);
2283                 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2284                         p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2285                 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2286                           p2p.ssid_postfix_len);
2287         }
2288
2289         p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2290
2291         global->p2p = p2p_init(&p2p);
2292         if (global->p2p == NULL)
2293                 return -1;
2294
2295         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2296                 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2297                         continue;
2298                 p2p_add_wps_vendor_extension(
2299                         global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2300         }
2301
2302         return 0;
2303 }
2304
2305
2306 /**
2307  * wpas_p2p_deinit - Deinitialize per-interface P2P data
2308  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2309  *
2310  * This function deinitialize per-interface P2P data.
2311  */
2312 void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2313 {
2314         if (wpa_s->driver && wpa_s->drv_priv)
2315                 wpa_drv_probe_req_report(wpa_s, 0);
2316
2317         if (wpa_s->go_params) {
2318                 /* Clear any stored provisioning info */
2319                 p2p_clear_provisioning_info(
2320                         wpa_s->global->p2p,
2321                         wpa_s->go_params->peer_interface_addr);
2322         }
2323
2324         os_free(wpa_s->go_params);
2325         wpa_s->go_params = NULL;
2326         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2327         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2328         wpa_s->p2p_long_listen = 0;
2329         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2330         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
2331         wpas_p2p_remove_pending_group_interface(wpa_s);
2332
2333         /* TODO: remove group interface from the driver if this wpa_s instance
2334          * is on top of a P2P group interface */
2335 }
2336
2337
2338 /**
2339  * wpas_p2p_deinit_global - Deinitialize global P2P module
2340  * @global: Pointer to global data from wpa_supplicant_init()
2341  *
2342  * This function deinitializes the global (per device) P2P module.
2343  */
2344 void wpas_p2p_deinit_global(struct wpa_global *global)
2345 {
2346         struct wpa_supplicant *wpa_s, *tmp;
2347         char *ifname;
2348
2349         if (global->p2p == NULL)
2350                 return;
2351
2352         /* Remove remaining P2P group interfaces */
2353         wpa_s = global->ifaces;
2354         if (wpa_s)
2355                 wpas_p2p_service_flush(wpa_s);
2356         while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2357                 wpa_s = wpa_s->next;
2358         while (wpa_s) {
2359                 enum wpa_driver_if_type type;
2360                 tmp = global->ifaces;
2361                 while (tmp &&
2362                        (tmp == wpa_s ||
2363                         tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2364                         tmp = tmp->next;
2365                 }
2366                 if (tmp == NULL)
2367                         break;
2368                 ifname = os_strdup(tmp->ifname);
2369                 type = wpas_p2p_if_type(tmp->p2p_group_interface);
2370                 wpa_supplicant_remove_iface(global, tmp);
2371                 if (ifname)
2372                         wpa_drv_if_remove(wpa_s, type, ifname);
2373                 os_free(ifname);
2374         }
2375
2376         /*
2377          * Deinit GO data on any possibly remaining interface (if main
2378          * interface is used as GO).
2379          */
2380         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2381                 if (wpa_s->ap_iface)
2382                         wpas_p2p_group_deinit(wpa_s);
2383         }
2384
2385         p2p_deinit(global->p2p);
2386         global->p2p = NULL;
2387 }
2388
2389
2390 static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2391 {
2392         if (wpa_s->drv_flags &
2393             (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2394              WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
2395                 return 1; /* P2P group requires a new interface in every case
2396                            */
2397         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2398                 return 0; /* driver does not support concurrent operations */
2399         if (wpa_s->global->ifaces->next)
2400                 return 1; /* more that one interface already in use */
2401         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2402                 return 1; /* this interface is already in use */
2403         return 0;
2404 }
2405
2406
2407 static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2408                                  const u8 *peer_addr,
2409                                  enum p2p_wps_method wps_method,
2410                                  int go_intent, const u8 *own_interface_addr,
2411                                  unsigned int force_freq, int persistent_group)
2412 {
2413         if (persistent_group && wpa_s->conf->persistent_reconnect)
2414                 persistent_group = 2;
2415
2416         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2417                 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2418                                            go_intent, own_interface_addr,
2419                                            force_freq, persistent_group);
2420         }
2421
2422         return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2423                            go_intent, own_interface_addr, force_freq,
2424                            persistent_group);
2425 }
2426
2427
2428 static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2429                                 const u8 *peer_addr,
2430                                 enum p2p_wps_method wps_method,
2431                                 int go_intent, const u8 *own_interface_addr,
2432                                 unsigned int force_freq, int persistent_group)
2433 {
2434         if (persistent_group && wpa_s->conf->persistent_reconnect)
2435                 persistent_group = 2;
2436
2437         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2438                 return -1;
2439
2440         return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2441                              go_intent, own_interface_addr, force_freq,
2442                              persistent_group);
2443 }
2444
2445
2446 static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
2447 {
2448         wpa_s->p2p_join_scan_count++;
2449         wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
2450                    wpa_s->p2p_join_scan_count);
2451         if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
2452                 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
2453                            " for join operationg - stop join attempt",
2454                            MAC2STR(wpa_s->pending_join_iface_addr));
2455                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2456                 wpa_msg(wpa_s->parent, MSG_INFO,
2457                         P2P_EVENT_GROUP_FORMATION_FAILURE);
2458         }
2459 }
2460
2461
2462 static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2463                                    struct wpa_scan_results *scan_res)
2464 {
2465         struct wpa_bss *bss;
2466         int freq;
2467         u8 iface_addr[ETH_ALEN];
2468
2469         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2470
2471         if (wpa_s->global->p2p_disabled)
2472                 return;
2473
2474         wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2475                    scan_res ? (int) scan_res->num : -1);
2476
2477         if (scan_res)
2478                 wpas_p2p_scan_res_handler(wpa_s, scan_res);
2479
2480         freq = p2p_get_oper_freq(wpa_s->global->p2p,
2481                                  wpa_s->pending_join_iface_addr);
2482         if (freq < 0 &&
2483             p2p_get_interface_addr(wpa_s->global->p2p,
2484                                    wpa_s->pending_join_dev_addr,
2485                                    iface_addr) == 0 &&
2486             os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
2487         {
2488                 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
2489                            "address for join from " MACSTR " to " MACSTR
2490                            " based on newly discovered P2P peer entry",
2491                            MAC2STR(wpa_s->pending_join_iface_addr),
2492                            MAC2STR(iface_addr));
2493                 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
2494                           ETH_ALEN);
2495
2496                 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2497                                          wpa_s->pending_join_iface_addr);
2498         }
2499         if (freq >= 0) {
2500                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2501                            "from P2P peer table: %d MHz", freq);
2502         }
2503         bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
2504         if (bss) {
2505                 freq = bss->freq;
2506                 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2507                            "from BSS table: %d MHz", freq);
2508         }
2509         if (freq > 0) {
2510                 u16 method;
2511
2512                 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2513                            "prior to joining an existing group (GO " MACSTR
2514                            " freq=%u MHz)",
2515                            MAC2STR(wpa_s->pending_join_dev_addr), freq);
2516                 wpa_s->pending_pd_before_join = 1;
2517
2518                 switch (wpa_s->pending_join_wps_method) {
2519                 case WPS_PIN_DISPLAY:
2520                         method = WPS_CONFIG_KEYPAD;
2521                         break;
2522                 case WPS_PIN_KEYPAD:
2523                         method = WPS_CONFIG_DISPLAY;
2524                         break;
2525                 case WPS_PBC:
2526                         method = WPS_CONFIG_PUSHBUTTON;
2527                         break;
2528                 default:
2529                         method = 0;
2530                         break;
2531                 }
2532
2533                 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
2534                                                wpa_s->pending_join_dev_addr) ==
2535                      method)) {
2536                         /*
2537                          * We have already performed provision discovery for
2538                          * joining the group. Proceed directly to join
2539                          * operation without duplicated provision discovery. */
2540                         wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
2541                                    "with " MACSTR " already done - proceed to "
2542                                    "join",
2543                                    MAC2STR(wpa_s->pending_join_dev_addr));
2544                         wpa_s->pending_pd_before_join = 0;
2545                         goto start;
2546                 }
2547
2548                 if (p2p_prov_disc_req(wpa_s->global->p2p,
2549                                       wpa_s->pending_join_dev_addr, method, 1)
2550                     < 0) {
2551                         wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2552                                    "Discovery Request before joining an "
2553                                    "existing group");
2554                         wpa_s->pending_pd_before_join = 0;
2555                         goto start;
2556                 }
2557
2558                 /*
2559                  * Actual join operation will be started from the Action frame
2560                  * TX status callback.
2561                  */
2562                 return;
2563         }
2564
2565         wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
2566         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2567         eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2568         wpas_p2p_check_join_scan_limit(wpa_s);
2569         return;
2570
2571 start:
2572         /* Start join operation immediately */
2573         wpas_p2p_join_start(wpa_s);
2574 }
2575
2576
2577 static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2578 {
2579         struct wpa_supplicant *wpa_s = eloop_ctx;
2580         int ret;
2581         struct wpa_driver_scan_params params;
2582         struct wpabuf *wps_ie, *ies;
2583         size_t ielen;
2584
2585         os_memset(&params, 0, sizeof(params));
2586
2587         /* P2P Wildcard SSID */
2588         params.num_ssids = 1;
2589         params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2590         params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2591
2592         wpa_s->wps->dev.p2p = 1;
2593         wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
2594                                         WPS_REQ_ENROLLEE, 0, NULL);
2595         if (wps_ie == NULL) {
2596                 wpas_p2p_scan_res_join(wpa_s, NULL);
2597                 return;
2598         }
2599
2600         ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
2601         ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
2602         if (ies == NULL) {
2603                 wpabuf_free(wps_ie);
2604                 wpas_p2p_scan_res_join(wpa_s, NULL);
2605                 return;
2606         }
2607         wpabuf_put_buf(ies, wps_ie);
2608         wpabuf_free(wps_ie);
2609
2610         p2p_scan_ie(wpa_s->global->p2p, ies);
2611
2612         params.p2p_probe = 1;
2613         params.extra_ies = wpabuf_head(ies);
2614         params.extra_ies_len = wpabuf_len(ies);
2615
2616         /*
2617          * Run a scan to update BSS table and start Provision Discovery once
2618          * the new scan results become available.
2619          */
2620         wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
2621         ret = wpa_drv_scan(wpa_s, &params);
2622
2623         wpabuf_free(ies);
2624
2625         if (ret) {
2626                 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2627                            "try again later");
2628                 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2629                 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2630                 wpas_p2p_check_join_scan_limit(wpa_s);
2631         }
2632 }
2633
2634
2635 static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2636                          const u8 *dev_addr, enum p2p_wps_method wps_method)
2637 {
2638         wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2639                    MACSTR " dev " MACSTR ")",
2640                    MAC2STR(iface_addr), MAC2STR(dev_addr));
2641
2642         os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2643         os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2644         wpa_s->pending_join_wps_method = wps_method;
2645
2646         /* Make sure we are not running find during connection establishment */
2647         wpas_p2p_stop_find(wpa_s);
2648
2649         wpa_s->p2p_join_scan_count = 0;
2650         wpas_p2p_join_scan(wpa_s, NULL);
2651         return 0;
2652 }
2653
2654
2655 static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2656 {
2657         struct wpa_supplicant *group;
2658         struct p2p_go_neg_results res;
2659
2660         group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2661         if (group == NULL)
2662                 return -1;
2663         if (group != wpa_s) {
2664                 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2665                           sizeof(group->p2p_pin));
2666                 group->p2p_wps_method = wpa_s->p2p_wps_method;
2667         }
2668
2669         group->p2p_in_provisioning = 1;
2670
2671         os_memset(&res, 0, sizeof(res));
2672         os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2673                   ETH_ALEN);
2674         res.wps_method = wpa_s->pending_join_wps_method;
2675         wpas_start_wps_enrollee(group, &res);
2676
2677         /*
2678          * Allow a longer timeout for join-a-running-group than normal 15
2679          * second group formation timeout since the GO may not have authorized
2680          * our connection yet.
2681          */
2682         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2683         eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
2684                                wpa_s, NULL);
2685
2686         return 0;
2687 }
2688
2689
2690 /**
2691  * wpas_p2p_connect - Request P2P Group Formation to be started
2692  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2693  * @peer_addr: Address of the peer P2P Device
2694  * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2695  * @persistent_group: Whether to create a persistent group
2696  * @join: Whether to join an existing group (as a client) instead of starting
2697  *      Group Owner negotiation; @peer_addr is BSSID in that case
2698  * @auth: Whether to only authorize the connection instead of doing that and
2699  *      initiating Group Owner negotiation
2700  * @go_intent: GO Intent or -1 to use default
2701  * @freq: Frequency for the group or 0 for auto-selection
2702  * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
2703  *      failure, -2 on failure due to channel not currently available,
2704  *      -3 if forced channel is not supported
2705  */
2706 int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2707                      const char *pin, enum p2p_wps_method wps_method,
2708                      int persistent_group, int join, int auth, int go_intent,
2709                      int freq)
2710 {
2711         int force_freq = 0, oper_freq = 0;
2712         u8 bssid[ETH_ALEN];
2713         int ret = 0;
2714         enum wpa_driver_if_type iftype;
2715         const u8 *if_addr;
2716
2717         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2718                 return -1;
2719
2720         if (go_intent < 0)
2721                 go_intent = wpa_s->conf->p2p_go_intent;
2722
2723         if (!auth)
2724                 wpa_s->p2p_long_listen = 0;
2725
2726         wpa_s->p2p_wps_method = wps_method;
2727
2728         if (pin)
2729                 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2730         else if (wps_method == WPS_PIN_DISPLAY) {
2731                 ret = wps_generate_pin();
2732                 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2733                             ret);
2734                 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2735                            wpa_s->p2p_pin);
2736         } else
2737                 wpa_s->p2p_pin[0] = '\0';
2738
2739         if (join) {
2740                 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
2741                 if (auth) {
2742                         wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2743                                    "connect a running group from " MACSTR,
2744                                    MAC2STR(peer_addr));
2745                         os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2746                         return ret;
2747                 }
2748                 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
2749                 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
2750                                            iface_addr) < 0) {
2751                         os_memcpy(iface_addr, peer_addr, ETH_ALEN);
2752                         p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
2753                                          dev_addr);
2754                 }
2755                 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) <
2756                     0)
2757                         return -1;
2758                 return ret;
2759         }
2760
2761         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2762             wpa_s->assoc_freq)
2763                 oper_freq = wpa_s->assoc_freq;
2764         else {
2765                 oper_freq = wpa_drv_shared_freq(wpa_s);
2766                 if (oper_freq < 0)
2767                         oper_freq = 0;
2768         }
2769
2770         if (freq > 0) {
2771                 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
2772                         wpa_printf(MSG_DEBUG, "P2P: The forced channel "
2773                                    "(%u MHz) is not supported for P2P uses",
2774                                    freq);
2775                         return -3;
2776                 }
2777
2778                 if (oper_freq > 0 && freq != oper_freq &&
2779                     !(wpa_s->drv_flags &
2780                       WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2781                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2782                                    "on %u MHz while connected on another "
2783                                    "channel (%u MHz)", freq, oper_freq);
2784                         return -2;
2785                 }
2786                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2787                            "requested channel (%u MHz)", freq);
2788                 force_freq = freq;
2789         } else if (oper_freq > 0 &&
2790                    !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
2791                 if (!(wpa_s->drv_flags &
2792                       WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2793                         wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2794                                    "while connected on non-P2P supported "
2795                                    "channel (%u MHz)", oper_freq);
2796                         return -2;
2797                 }
2798                 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
2799                            "(%u MHz) not available for P2P - try to use "
2800                            "another channel", oper_freq);
2801                 force_freq = 0;
2802         } else if (oper_freq > 0) {
2803                 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2804                            "channel we are already using (%u MHz) on another "
2805                            "interface", oper_freq);
2806                 force_freq = oper_freq;
2807         }
2808
2809         wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
2810
2811         if (wpa_s->create_p2p_iface) {
2812                 /* Prepare to add a new interface for the group */
2813                 iftype = WPA_IF_P2P_GROUP;
2814                 if (go_intent == 15)
2815                         iftype = WPA_IF_P2P_GO;
2816                 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
2817                         wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2818                                    "interface for the group");
2819                         return -1;
2820                 }
2821
2822                 if_addr = wpa_s->pending_interface_addr;
2823         } else
2824                 if_addr = wpa_s->own_addr;
2825
2826         if (auth) {
2827                 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2828                                          go_intent, if_addr,
2829                                          force_freq, persistent_group) < 0)
2830                         return -1;
2831                 return ret;
2832         }
2833
2834         if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
2835                                   go_intent, if_addr, force_freq,
2836                                   persistent_group) < 0) {
2837                 if (wpa_s->create_p2p_iface)
2838                         wpas_p2p_remove_pending_group_interface(wpa_s);
2839                 return -1;
2840         }
2841         return ret;
2842 }
2843
2844
2845 /**
2846  * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
2847  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2848  * @freq: Frequency of the channel in MHz
2849  * @duration: Duration of the stay on the channel in milliseconds
2850  *
2851  * This callback is called when the driver indicates that it has started the
2852  * requested remain-on-channel duration.
2853  */
2854 void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2855                                    unsigned int freq, unsigned int duration)
2856 {
2857         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2858                 return;
2859         if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
2860                 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
2861                               wpa_s->pending_listen_duration);
2862                 wpa_s->pending_listen_freq = 0;
2863         }
2864 }
2865
2866
2867 static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
2868                                  unsigned int timeout)
2869 {
2870         /* Limit maximum Listen state time based on driver limitation. */
2871         if (timeout > wpa_s->max_remain_on_chan)
2872                 timeout = wpa_s->max_remain_on_chan;
2873
2874         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2875                 return wpa_drv_p2p_listen(wpa_s, timeout);
2876
2877         return p2p_listen(wpa_s->global->p2p, timeout);
2878 }
2879
2880
2881 /**
2882  * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
2883  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2884  * @freq: Frequency of the channel in MHz
2885  *
2886  * This callback is called when the driver indicates that a remain-on-channel
2887  * operation has been completed, i.e., the duration on the requested channel
2888  * has timed out.
2889  */
2890 void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2891                                           unsigned int freq)
2892 {
2893         wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
2894                    "(p2p_long_listen=%d ms pending_action_tx=%p)",
2895                    wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
2896         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2897                 return;
2898         if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
2899                 return; /* P2P module started a new operation */
2900         if (wpa_s->pending_action_tx)
2901                 return;
2902         if (wpa_s->p2p_long_listen > 0)
2903                 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
2904         if (wpa_s->p2p_long_listen > 0) {
2905                 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
2906                 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
2907         }
2908 }
2909
2910
2911 /**
2912  * wpas_p2p_group_remove - Remove a P2P group
2913  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2914  * @ifname: Network interface name of the group interface or "*" to remove all
2915  *      groups
2916  * Returns: 0 on success, -1 on failure
2917  *
2918  * This function is used to remove a P2P group. This can be used to disconnect
2919  * from a group in which the local end is a P2P Client or to end a P2P Group in
2920  * case the local end is the Group Owner. If a virtual network interface was
2921  * created for this group, that interface will be removed. Otherwise, only the
2922  * configured P2P group network will be removed from the interface.
2923  */
2924 int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
2925 {
2926         struct wpa_global *global = wpa_s->global;
2927
2928         if (os_strcmp(ifname, "*") == 0) {
2929                 struct wpa_supplicant *prev;
2930                 wpa_s = global->ifaces;
2931                 while (wpa_s) {
2932                         prev = wpa_s;
2933                         wpa_s = wpa_s->next;
2934                         wpas_p2p_disconnect(prev);
2935                 }
2936                 return 0;
2937         }
2938
2939         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2940                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
2941                         break;
2942         }
2943
2944         return wpas_p2p_disconnect(wpa_s);
2945 }
2946
2947
2948 static void wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
2949                                     struct p2p_go_neg_results *params,
2950                                     int freq)
2951 {
2952         u8 bssid[ETH_ALEN];
2953         int res;
2954
2955         os_memset(params, 0, sizeof(*params));
2956         params->role_go = 1;
2957         if (freq) {
2958                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
2959                            "frequency %d MHz", freq);
2960                 params->freq = freq;
2961         } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
2962                    wpa_s->conf->p2p_oper_channel >= 1 &&
2963                    wpa_s->conf->p2p_oper_channel <= 11) {
2964                 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
2965                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
2966                            "frequency %d MHz", params->freq);
2967         } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
2968                    wpa_s->conf->p2p_oper_reg_class == 124) {
2969                 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
2970                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
2971                            "frequency %d MHz", params->freq);
2972         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
2973                    wpa_s->best_overall_freq > 0 &&
2974                    p2p_supported_freq(wpa_s->global->p2p,
2975                                       wpa_s->best_overall_freq)) {
2976                 params->freq = wpa_s->best_overall_freq;
2977                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
2978                            "channel %d MHz", params->freq);
2979         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
2980                    wpa_s->best_24_freq > 0 &&
2981                    p2p_supported_freq(wpa_s->global->p2p,
2982                                       wpa_s->best_24_freq)) {
2983                 params->freq = wpa_s->best_24_freq;
2984                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
2985                            "channel %d MHz", params->freq);
2986         } else if (wpa_s->conf->p2p_oper_channel == 0 &&
2987                    wpa_s->best_5_freq > 0 &&
2988                    p2p_supported_freq(wpa_s->global->p2p,
2989                                       wpa_s->best_5_freq)) {
2990                 params->freq = wpa_s->best_5_freq;
2991                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
2992                            "channel %d MHz", params->freq);
2993         } else {
2994                 params->freq = 2412;
2995                 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
2996                            "known)", params->freq);
2997         }
2998
2999         if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3000             wpa_s->assoc_freq && !freq) {
3001                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3002                            "already using");
3003                 params->freq = wpa_s->assoc_freq;
3004         }
3005
3006         res = wpa_drv_shared_freq(wpa_s);
3007         if (res > 0 && !freq) {
3008                 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3009                            "already using on a shared interface");
3010                 params->freq = res;
3011         }
3012 }
3013
3014
3015 static struct wpa_supplicant *
3016 wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3017                          int go)
3018 {
3019         struct wpa_supplicant *group_wpa_s;
3020
3021         if (!wpas_p2p_create_iface(wpa_s))
3022                 return wpa_s;
3023
3024         if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3025                                          WPA_IF_P2P_CLIENT) < 0)
3026                 return NULL;
3027         group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3028         if (group_wpa_s == NULL) {
3029                 wpas_p2p_remove_pending_group_interface(wpa_s);
3030                 return NULL;
3031         }
3032
3033         return group_wpa_s;
3034 }
3035
3036
3037 /**
3038  * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3039  * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3040  * @persistent_group: Whether to create a persistent group
3041  * @freq: Frequency for the group or 0 to indicate no hardcoding
3042  * Returns: 0 on success, -1 on failure
3043  *
3044  * This function creates a new P2P group with the local end as the Group Owner,
3045  * i.e., without using Group Owner Negotiation.
3046  */
3047 int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
3048                        int freq)
3049 {
3050         struct p2p_go_neg_results params;
3051         unsigned int r;
3052
3053         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3054                 return -1;
3055
3056         /* Make sure we are not running find during connection establishment */
3057         wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
3058         wpas_p2p_stop_find(wpa_s);
3059
3060         if (freq == 2) {
3061                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3062                            "band");
3063                 if (wpa_s->best_24_freq > 0 &&
3064                     p2p_supported_freq(wpa_s->global->p2p,
3065                                        wpa_s->best_24_freq)) {
3066                         freq = wpa_s->best_24_freq;
3067                         wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3068                                    "channel: %d MHz", freq);
3069                 } else {
3070                         os_get_random((u8 *) &r, sizeof(r));
3071                         freq = 2412 + (r % 3) * 25;
3072                         wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3073                                    "channel: %d MHz", freq);
3074                 }
3075         }
3076
3077         if (freq == 5) {
3078                 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3079                            "band");
3080                 if (wpa_s->best_5_freq > 0 &&
3081                     p2p_supported_freq(wpa_s->global->p2p,
3082                                        wpa_s->best_5_freq)) {
3083                         freq = wpa_s->best_5_freq;
3084                         wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3085                                    "channel: %d MHz", freq);
3086                 } else {
3087                         os_get_random((u8 *) &r, sizeof(r));
3088                         freq = 5180 + (r % 4) * 20;
3089                         if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3090                                 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3091                                            "5 GHz channel for P2P group");
3092                                 return -1;
3093                         }
3094                         wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3095                                    "channel: %d MHz", freq);
3096                 }
3097         }
3098
3099         if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3100                 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3101                            "(%u MHz) is not supported for P2P uses",
3102                            freq);
3103                 return -1;
3104         }
3105
3106         wpas_p2p_init_go_params(wpa_s, &params, freq);
3107         p2p_go_params(wpa_s->global->p2p, &params);
3108         params.persistent_group = persistent_group;
3109
3110         wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3111         if (wpa_s == NULL)
3112                 return -1;
3113         wpas_start_wps_go(wpa_s, &params, 0);
3114
3115         return 0;
3116 }
3117
3118
3119 static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3120                                  struct wpa_ssid *params, int addr_allocated)
3121 {
3122         struct wpa_ssid *ssid;
3123
3124         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3125         if (wpa_s == NULL)
3126                 return -1;
3127
3128         wpa_supplicant_ap_deinit(wpa_s);
3129
3130         ssid = wpa_config_add_network(wpa_s->conf);
3131         if (ssid == NULL)
3132                 return -1;
3133         wpa_config_set_network_defaults(ssid);
3134         ssid->temporary = 1;
3135         ssid->proto = WPA_PROTO_RSN;
3136         ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3137         ssid->group_cipher = WPA_CIPHER_CCMP;
3138         ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3139         ssid->ssid = os_malloc(params->ssid_len);
3140         if (ssid->ssid == NULL) {
3141                 wpa_config_remove_network(wpa_s->conf, ssid->id);
3142                 return -1;
3143         }
3144         os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3145         ssid->ssid_len = params->ssid_len;
3146         ssid->p2p_group = 1;
3147         ssid->export_keys = 1;
3148         if (params->psk_set) {
3149                 os_memcpy(ssid->psk, params->psk, 32);
3150                 ssid->psk_set = 1;
3151         }
3152         if (params->passphrase)
3153                 ssid->passphrase = os_strdup(params->passphrase);
3154
3155         wpa_supplicant_select_network(wpa_s, ssid);
3156
3157         wpa_s->show_group_started = 1;
3158
3159         return 0;
3160 }
3161
3162
3163 int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3164                                   struct wpa_ssid *ssid, int addr_allocated,
3165                                   int freq)
3166 {
3167         struct p2p_go_neg_results params;
3168         int go = 0;
3169
3170         if (ssid->disabled != 2 || ssid->ssid == NULL)
3171                 return -1;
3172
3173         if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
3174             go == (ssid->mode == WPAS_MODE_P2P_GO)) {
3175                 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
3176                            "already running");
3177                 return 0;
3178         }
3179
3180         /* Make sure we are not running find during connection establishment */
3181         wpas_p2p_stop_find(wpa_s);
3182
3183         if (ssid->mode == WPAS_MODE_INFRA)
3184                 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
3185
3186         if (ssid->mode != WPAS_MODE_P2P_GO)
3187                 return -1;
3188
3189         wpas_p2p_init_go_params(wpa_s, &params, freq);
3190
3191         params.role_go = 1;
3192         if (ssid->passphrase == NULL ||
3193             os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
3194                 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
3195                            "group");
3196                 return -1;
3197         }
3198         os_strlcpy(params.passphrase, ssid->passphrase,
3199                    sizeof(params.passphrase));
3200         os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
3201         params.ssid_len = ssid->ssid_len;
3202         params.persistent_group = 1;
3203
3204         wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
3205         if (wpa_s == NULL)
3206                 return -1;
3207
3208         wpas_start_wps_go(wpa_s, &params, 0);
3209
3210         return 0;
3211 }
3212
3213
3214 static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
3215                                struct wpabuf *proberesp_ies)
3216 {
3217         struct wpa_supplicant *wpa_s = ctx;
3218         if (wpa_s->ap_iface) {
3219                 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
3220                 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
3221                         wpabuf_free(beacon_ies);
3222                         wpabuf_free(proberesp_ies);
3223                         return;
3224                 }
3225                 if (beacon_ies) {
3226                         wpabuf_free(hapd->p2p_beacon_ie);
3227                         hapd->p2p_beacon_ie = beacon_ies;
3228                 }
3229                 wpabuf_free(hapd->p2p_probe_resp_ie);
3230                 hapd->p2p_probe_resp_ie = proberesp_ies;
3231         } else {
3232                 wpabuf_free(beacon_ies);
3233                 wpabuf_free(proberesp_ies);
3234         }
3235         wpa_supplicant_ap_update_beacon(wpa_s);
3236 }
3237
3238
3239 static void wpas_p2p_idle_update(void *ctx, int idle)
3240 {
3241         struct wpa_supplicant *wpa_s = ctx;
3242         if (!wpa_s->ap_iface)
3243                 return;
3244         wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
3245         if (idle)
3246                 wpas_p2p_set_group_idle_timeout(wpa_s);
3247         else
3248                 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3249 }
3250
3251
3252 struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
3253                                        int persistent_group,
3254                                        int group_formation)
3255 {
3256         struct p2p_group *group;
3257         struct p2p_group_config *cfg;
3258
3259         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3260                 return NULL;
3261         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3262                 return NULL;
3263
3264         cfg = os_zalloc(sizeof(*cfg));
3265         if (cfg == NULL)
3266                 return NULL;
3267
3268         if (persistent_group && wpa_s->conf->persistent_reconnect)
3269                 cfg->persistent_group = 2;
3270         else if (persistent_group)
3271                 cfg->persistent_group = 1;
3272         os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3273         if (wpa_s->max_stations &&
3274             wpa_s->max_stations < wpa_s->conf->max_num_sta)
3275                 cfg->max_clients = wpa_s->max_stations;
3276         else
3277                 cfg->max_clients = wpa_s->conf->max_num_sta;
3278         cfg->cb_ctx = wpa_s;
3279         cfg->ie_update = wpas_p2p_ie_update;
3280         cfg->idle_update = wpas_p2p_idle_update;
3281
3282         group = p2p_group_init(wpa_s->global->p2p, cfg);
3283         if (group == NULL)
3284                 os_free(cfg);
3285         if (!group_formation)
3286                 p2p_group_notif_formation_done(group);
3287         wpa_s->p2p_group = group;
3288         return group;
3289 }
3290
3291
3292 void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3293                           int registrar)
3294 {
3295         if (!wpa_s->p2p_in_provisioning) {
3296                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
3297                            "provisioning not in progress");
3298                 return;
3299         }
3300
3301         /* Clear any stored provisioning info */
3302         p2p_clear_provisioning_info(wpa_s->global->p2p, peer_addr);
3303
3304         eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
3305                              NULL);
3306         if (wpa_s->global->p2p)
3307                 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
3308         else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3309                 wpa_drv_wps_success_cb(wpa_s, peer_addr);
3310         wpas_group_formation_completed(wpa_s, 1);
3311 }
3312
3313
3314 void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
3315                          struct wps_event_fail *fail)
3316 {
3317         if (!wpa_s->p2p_in_provisioning) {
3318                 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
3319                            "provisioning not in progress");
3320                 return;
3321         }
3322
3323         if (wpa_s->go_params) {
3324                 p2p_clear_provisioning_info(
3325                         wpa_s->global->p2p,
3326                         wpa_s->go_params->peer_interface_addr);
3327         }
3328
3329         wpas_notify_p2p_wps_failed(wpa_s, fail);
3330 }
3331
3332
3333 int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3334                        const char *config_method, int join)
3335 {
3336         u16 config_methods;
3337
3338         if (os_strncmp(config_method, "display", 7) == 0)
3339                 config_methods = WPS_CONFIG_DISPLAY;
3340         else if (os_strncmp(config_method, "keypad", 6) == 0)
3341                 config_methods = WPS_CONFIG_KEYPAD;
3342         else if (os_strncmp(config_method, "pbc", 3) == 0 ||
3343                  os_strncmp(config_method, "pushbutton", 10) == 0)
3344                 config_methods = WPS_CONFIG_PUSHBUTTON;
3345         else {
3346                 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
3347                 return -1;
3348         }
3349
3350         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3351                 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
3352                                                  config_methods, join);
3353         }
3354
3355         if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
3356                 return -1;
3357
3358         return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
3359                                  config_methods, join);
3360 }
3361
3362
3363 int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
3364                               char *end)
3365 {
3366         return p2p_scan_result_text(ies, ies_len, buf, end);
3367 }
3368
3369
3370 static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
3371 {
3372         if (!wpa_s->pending_action_tx)
3373                 return;
3374
3375         wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
3376                    "operation request");
3377         wpabuf_free(wpa_s->pending_action_tx);
3378         wpa_s->pending_action_tx = NULL;
3379 }
3380
3381
3382 int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
3383                   enum p2p_discovery_type type,
3384                   unsigned int num_req_dev_types, const u8 *req_dev_types)
3385 {
3386         wpas_p2p_clear_pending_action_tx(wpa_s);
3387         wpa_s->p2p_long_listen = 0;
3388
3389         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3390                 return wpa_drv_p2p_find(wpa_s, timeout, type);
3391
3392         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3393                 return -1;
3394
3395         return p2p_find(wpa_s->global->p2p, timeout, type,
3396                         num_req_dev_types, req_dev_types);
3397 }
3398
3399
3400 void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
3401 {
3402         wpas_p2p_clear_pending_action_tx(wpa_s);
3403         wpa_s->p2p_long_listen = 0;
3404         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3405         eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3406         wpa_s->p2p_cb_on_scan_complete = 0;
3407
3408         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3409                 wpa_drv_p2p_stop_find(wpa_s);
3410                 return;
3411         }
3412
3413         if (wpa_s->global->p2p)
3414                 p2p_stop_find(wpa_s->global->p2p);
3415
3416         wpas_p2p_remove_pending_group_interface(wpa_s);
3417 }
3418
3419
3420 static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3421 {
3422         struct wpa_supplicant *wpa_s = eloop_ctx;
3423         wpa_s->p2p_long_listen = 0;
3424 }
3425
3426
3427 int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
3428 {
3429         int res;
3430
3431         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3432                 return -1;
3433
3434         wpas_p2p_clear_pending_action_tx(wpa_s);
3435
3436         if (timeout == 0) {
3437                 /*
3438                  * This is a request for unlimited Listen state. However, at
3439                  * least for now, this is mapped to a Listen state for one
3440                  * hour.
3441                  */
3442                 timeout = 3600;
3443         }
3444         eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3445         wpa_s->p2p_long_listen = 0;
3446
3447         /*
3448          * Stop previous find/listen operation to avoid trying to request a new
3449          * remain-on-channel operation while the driver is still running the
3450          * previous one.
3451          */
3452         if (wpa_s->global->p2p)
3453                 p2p_stop_find(wpa_s->global->p2p);
3454
3455         res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
3456         if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
3457                 wpa_s->p2p_long_listen = timeout * 1000;
3458                 eloop_register_timeout(timeout, 0,
3459                                        wpas_p2p_long_listen_timeout,
3460                                        wpa_s, NULL);
3461         }
3462
3463         return res;
3464 }
3465
3466
3467 int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
3468                           u8 *buf, size_t len, int p2p_group)
3469 {
3470         struct wpabuf *p2p_ie;
3471         int ret;
3472
3473         if (wpa_s->global->p2p_disabled)
3474                 return -1;
3475         if (wpa_s->global->p2p == NULL)
3476                 return -1;
3477         if (bss == NULL)
3478                 return -1;
3479
3480         p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3481         ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3482                                p2p_group, p2p_ie);
3483         wpabuf_free(p2p_ie);
3484
3485         return ret;
3486 }
3487
3488
3489 int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
3490                           const u8 *dst, const u8 *bssid,
3491                           const u8 *ie, size_t ie_len)
3492 {
3493         if (wpa_s->global->p2p_disabled)
3494                 return 0;
3495         if (wpa_s->global->p2p == NULL)
3496                 return 0;
3497
3498         return p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
3499                                 ie, ie_len);
3500 }
3501
3502
3503 void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3504                         const u8 *sa, const u8 *bssid,
3505                         u8 category, const u8 *data, size_t len, int freq)
3506 {
3507         if (wpa_s->global->p2p_disabled)
3508                 return;
3509         if (wpa_s->global->p2p == NULL)
3510                 return;
3511
3512         p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3513                       freq);
3514 }
3515
3516
3517 void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3518 {
3519         if (wpa_s->global->p2p_disabled)
3520                 return;
3521         if (wpa_s->global->p2p == NULL)
3522                 return;
3523
3524         p2p_scan_ie(wpa_s->global->p2p, ies);
3525 }
3526
3527
3528 void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3529 {
3530         p2p_group_deinit(wpa_s->p2p_group);
3531         wpa_s->p2p_group = NULL;
3532
3533         wpa_s->ap_configured_cb = NULL;
3534         wpa_s->ap_configured_cb_ctx = NULL;
3535         wpa_s->ap_configured_cb_data = NULL;
3536         wpa_s->connect_without_scan = NULL;
3537 }
3538
3539
3540 int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3541 {
3542         wpa_s->p2p_long_listen = 0;
3543
3544         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3545                 return wpa_drv_p2p_reject(wpa_s, addr);
3546
3547         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3548                 return -1;
3549
3550         return p2p_reject(wpa_s->global->p2p, addr);
3551 }
3552
3553
3554 /* Invite to reinvoke a persistent group */
3555 int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3556                     struct wpa_ssid *ssid, const u8 *go_dev_addr)
3557 {
3558         enum p2p_invite_role role;
3559         u8 *bssid = NULL;
3560
3561         if (ssid->mode == WPAS_MODE_P2P_GO) {
3562                 role = P2P_INVITE_ROLE_GO;
3563                 if (peer_addr == NULL) {
3564                         wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3565                                    "address in invitation command");
3566                         return -1;
3567                 }
3568                 if (wpas_p2p_create_iface(wpa_s)) {
3569                         if (wpas_p2p_add_group_interface(wpa_s,
3570                                                          WPA_IF_P2P_GO) < 0) {
3571                                 wpa_printf(MSG_ERROR, "P2P: Failed to "
3572                                            "allocate a new interface for the "
3573                                            "group");
3574                                 return -1;
3575                         }
3576                         bssid = wpa_s->pending_interface_addr;
3577                 } else
3578                         bssid = wpa_s->own_addr;
3579         } else {
3580                 role = P2P_INVITE_ROLE_CLIENT;
3581                 peer_addr = ssid->bssid;
3582         }
3583         wpa_s->pending_invite_ssid_id = ssid->id;
3584
3585         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3586                 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3587                                           ssid->ssid, ssid->ssid_len,
3588                                           go_dev_addr, 1);
3589
3590         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3591                 return -1;
3592
3593         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3594                           ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3595 }
3596
3597
3598 /* Invite to join an active group */
3599 int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3600                           const u8 *peer_addr, const u8 *go_dev_addr)
3601 {
3602         struct wpa_global *global = wpa_s->global;
3603         enum p2p_invite_role role;
3604         u8 *bssid = NULL;
3605         struct wpa_ssid *ssid;
3606
3607         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3608                 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3609                         break;
3610         }
3611         if (wpa_s == NULL) {
3612                 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3613                 return -1;
3614         }
3615
3616         ssid = wpa_s->current_ssid;
3617         if (ssid == NULL) {
3618                 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3619                            "invitation");
3620                 return -1;
3621         }
3622
3623         if (ssid->mode == WPAS_MODE_P2P_GO) {
3624                 role = P2P_INVITE_ROLE_ACTIVE_GO;
3625                 bssid = wpa_s->own_addr;
3626                 if (go_dev_addr == NULL)
3627                         go_dev_addr = wpa_s->parent->own_addr;
3628         } else {
3629                 role = P2P_INVITE_ROLE_CLIENT;
3630                 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3631                         wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3632                                    "invite to current group");
3633                         return -1;
3634                 }
3635                 bssid = wpa_s->bssid;
3636                 if (go_dev_addr == NULL &&
3637                     !is_zero_ether_addr(wpa_s->go_dev_addr))
3638                         go_dev_addr = wpa_s->go_dev_addr;
3639         }
3640         wpa_s->parent->pending_invite_ssid_id = -1;
3641
3642         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3643                 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3644                                           ssid->ssid, ssid->ssid_len,
3645                                           go_dev_addr, 0);
3646
3647         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3648                 return -1;
3649
3650         return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3651                           ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
3652                           go_dev_addr, 0);
3653 }
3654
3655
3656 void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3657 {
3658         struct wpa_ssid *ssid = wpa_s->current_ssid;
3659         const char *ssid_txt;
3660         u8 go_dev_addr[ETH_ALEN];
3661         int network_id = -1;
3662         int persistent;
3663         int freq;
3664
3665         if (!wpa_s->show_group_started || !ssid)
3666                 return;
3667
3668         wpa_s->show_group_started = 0;
3669
3670         ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3671         os_memset(go_dev_addr, 0, ETH_ALEN);
3672         if (ssid->bssid_set)
3673                 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3674         persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3675                                                ssid->ssid_len);
3676         os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3677
3678         if (wpa_s->global->p2p_group_formation == wpa_s)
3679                 wpa_s->global->p2p_group_formation = NULL;
3680
3681         freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
3682                 (int) wpa_s->assoc_freq;
3683         if (ssid->passphrase == NULL && ssid->psk_set) {
3684                 char psk[65];
3685                 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3686                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3687                         "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
3688                         MACSTR "%s",
3689                         wpa_s->ifname, ssid_txt, freq, psk,
3690                         MAC2STR(go_dev_addr),
3691                         persistent ? " [PERSISTENT]" : "");
3692         } else {
3693                 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3694                         "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
3695                         "go_dev_addr=" MACSTR "%s",
3696                         wpa_s->ifname, ssid_txt, freq,
3697                         ssid->passphrase ? ssid->passphrase : "",
3698                         MAC2STR(go_dev_addr),
3699                         persistent ? " [PERSISTENT]" : "");
3700         }
3701
3702         if (persistent)
3703                 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
3704                                                              ssid, go_dev_addr);
3705         if (network_id < 0)
3706                 network_id = ssid->id;
3707         wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
3708 }
3709
3710
3711 int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3712                           u32 interval1, u32 duration2, u32 interval2)
3713 {
3714         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3715                 return -1;
3716         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3717                 return -1;
3718
3719         if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3720             wpa_s->current_ssid == NULL ||
3721             wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3722                 return -1;
3723
3724         return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3725                                 wpa_s->own_addr, wpa_s->assoc_freq,
3726                                 duration1, interval1, duration2, interval2);
3727 }
3728
3729
3730 int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3731                         unsigned int interval)
3732 {
3733         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3734                 return -1;
3735
3736         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3737                 return -1;
3738
3739         return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3740 }
3741
3742
3743 static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
3744 {
3745         struct wpa_supplicant *wpa_s = eloop_ctx;
3746
3747         if (wpa_s->conf->p2p_group_idle == 0) {
3748                 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
3749                            "disabled");
3750                 return;
3751         }
3752
3753         wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
3754                    "group");
3755         wpa_s->removal_reason = P2P_GROUP_REMOVAL_IDLE_TIMEOUT;
3756         wpas_p2p_group_delete(wpa_s);
3757 }
3758
3759
3760 static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
3761 {
3762         eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3763         if (wpa_s->conf->p2p_group_idle == 0)
3764                 return;
3765
3766         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3767                 return;
3768
3769         wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
3770                    wpa_s->conf->p2p_group_idle);
3771         eloop_register_timeout(wpa_s->conf->p2p_group_idle, 0,
3772                                wpas_p2p_group_idle_timeout, wpa_s, NULL);
3773 }
3774
3775
3776 void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3777                            u16 reason_code, const u8 *ie, size_t ie_len)
3778 {
3779         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3780                 return;
3781         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3782                 return;
3783
3784         p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3785 }
3786
3787
3788 void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3789                              u16 reason_code, const u8 *ie, size_t ie_len)
3790 {
3791         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3792                 return;
3793         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3794                 return;
3795
3796         p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3797 }
3798
3799
3800 void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
3801 {
3802         struct p2p_data *p2p = wpa_s->global->p2p;
3803
3804         if (p2p == NULL)
3805                 return;
3806
3807         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3808                 return;
3809
3810         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
3811                 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
3812
3813         if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
3814                 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
3815
3816         if (wpa_s->wps &&
3817             (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
3818                 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
3819
3820         if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
3821                 p2p_set_uuid(p2p, wpa_s->wps->uuid);
3822
3823         if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
3824                 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
3825                 p2p_set_model_name(p2p, wpa_s->conf->model_name);
3826                 p2p_set_model_number(p2p, wpa_s->conf->model_number);
3827                 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
3828         }
3829
3830         if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
3831                 p2p_set_sec_dev_types(p2p,
3832                                       (void *) wpa_s->conf->sec_device_type,
3833                                       wpa_s->conf->num_sec_device_types);
3834
3835         if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
3836                 int i;
3837                 p2p_remove_wps_vendor_extensions(p2p);
3838                 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
3839                         if (wpa_s->conf->wps_vendor_ext[i] == NULL)
3840                                 continue;
3841                         p2p_add_wps_vendor_extension(
3842                                 p2p, wpa_s->conf->wps_vendor_ext[i]);
3843                 }
3844         }
3845
3846         if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
3847             wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3848                 char country[3];
3849                 country[0] = wpa_s->conf->country[0];
3850                 country[1] = wpa_s->conf->country[1];
3851                 country[2] = 0x04;
3852                 p2p_set_country(p2p, country);
3853         }
3854
3855         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
3856                 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
3857                                      wpa_s->conf->p2p_ssid_postfix ?
3858                                      os_strlen(wpa_s->conf->p2p_ssid_postfix) :
3859                                      0);
3860         }
3861
3862         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
3863                 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
3864
3865         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
3866                 u8 reg_class, channel;
3867                 int ret;
3868                 unsigned int r;
3869                 if (wpa_s->conf->p2p_listen_reg_class &&
3870                     wpa_s->conf->p2p_listen_channel) {
3871                         reg_class = wpa_s->conf->p2p_listen_reg_class;
3872                         channel = wpa_s->conf->p2p_listen_channel;
3873                 } else {
3874                         reg_class = 81;
3875                         /*
3876                          * Pick one of the social channels randomly as the
3877                          * listen channel.
3878                          */
3879                         os_get_random((u8 *) &r, sizeof(r));
3880                         channel = 1 + (r % 3) * 5;
3881                 }
3882                 ret = p2p_set_listen_channel(p2p, reg_class, channel);
3883                 if (ret)
3884                         wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
3885                                    "failed: %d", ret);
3886         }
3887         if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
3888                 u8 op_reg_class, op_channel, cfg_op_channel;
3889                 int ret = 0;
3890                 unsigned int r;
3891                 if (wpa_s->conf->p2p_oper_reg_class &&
3892                     wpa_s->conf->p2p_oper_channel) {
3893                         op_reg_class = wpa_s->conf->p2p_oper_reg_class;
3894                         op_channel = wpa_s->conf->p2p_oper_channel;
3895                         cfg_op_channel = 1;
3896                 } else {
3897                         op_reg_class = 81;
3898                         /*
3899                          * Use random operation channel from (1, 6, 11)
3900                          *if no other preference is indicated.
3901                          */
3902                         os_get_random((u8 *) &r, sizeof(r));
3903                         op_channel = 1 + (r % 3) * 5;
3904                         cfg_op_channel = 0;
3905                 }
3906                 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
3907                                            cfg_op_channel);
3908                 if (ret)
3909                         wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
3910                                    "failed: %d", ret);
3911         }
3912 }
3913
3914
3915 int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
3916                      int duration)
3917 {
3918         if (!wpa_s->ap_iface)
3919                 return -1;
3920         return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
3921                                    duration);
3922 }
3923
3924
3925 int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
3926 {
3927         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3928                 return -1;
3929         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3930                 return -1;
3931
3932         wpa_s->global->cross_connection = enabled;
3933         p2p_set_cross_connect(wpa_s->global->p2p, enabled);
3934
3935         if (!enabled) {
3936                 struct wpa_supplicant *iface;
3937
3938                 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
3939                 {
3940                         if (iface->cross_connect_enabled == 0)
3941                                 continue;
3942
3943                         iface->cross_connect_enabled = 0;
3944                         iface->cross_connect_in_use = 0;
3945                         wpa_msg(iface->parent, MSG_INFO,
3946                                 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3947                                 iface->ifname, iface->cross_connect_uplink);
3948                 }
3949         }
3950
3951         return 0;
3952 }
3953
3954
3955 static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
3956 {
3957         struct wpa_supplicant *iface;
3958
3959         if (!uplink->global->cross_connection)
3960                 return;
3961
3962         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3963                 if (!iface->cross_connect_enabled)
3964                         continue;
3965                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3966                     0)
3967                         continue;
3968                 if (iface->ap_iface == NULL)
3969                         continue;
3970                 if (iface->cross_connect_in_use)
3971                         continue;
3972
3973                 iface->cross_connect_in_use = 1;
3974                 wpa_msg(iface->parent, MSG_INFO,
3975                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3976                         iface->ifname, iface->cross_connect_uplink);
3977         }
3978 }
3979
3980
3981 static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
3982 {
3983         struct wpa_supplicant *iface;
3984
3985         for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3986                 if (!iface->cross_connect_enabled)
3987                         continue;
3988                 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3989                     0)
3990                         continue;
3991                 if (!iface->cross_connect_in_use)
3992                         continue;
3993
3994                 wpa_msg(iface->parent, MSG_INFO,
3995                         P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3996                         iface->ifname, iface->cross_connect_uplink);
3997                 iface->cross_connect_in_use = 0;
3998         }
3999 }
4000
4001
4002 void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4003 {
4004         if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
4005             wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
4006             wpa_s->cross_connect_disallowed)
4007                 wpas_p2p_disable_cross_connect(wpa_s);
4008         else
4009                 wpas_p2p_enable_cross_connect(wpa_s);
4010         if (!wpa_s->ap_iface)
4011                 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4012 }
4013
4014
4015 void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
4016 {
4017         wpas_p2p_disable_cross_connect(wpa_s);
4018         if (!wpa_s->ap_iface)
4019                 wpas_p2p_set_group_idle_timeout(wpa_s);
4020 }
4021
4022
4023 static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
4024 {
4025         struct wpa_supplicant *iface;
4026
4027         if (!wpa_s->global->cross_connection)
4028                 return;
4029
4030         for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
4031                 if (iface == wpa_s)
4032                         continue;
4033                 if (iface->drv_flags &
4034                     WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
4035                         continue;
4036                 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
4037                         continue;
4038
4039                 wpa_s->cross_connect_enabled = 1;
4040                 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
4041                            sizeof(wpa_s->cross_connect_uplink));
4042                 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
4043                            "%s to %s whenever uplink is available",
4044                            wpa_s->ifname, wpa_s->cross_connect_uplink);
4045
4046                 if (iface->ap_iface || iface->current_ssid == NULL ||
4047                     iface->current_ssid->mode != WPAS_MODE_INFRA ||
4048                     iface->cross_connect_disallowed ||
4049                     iface->wpa_state != WPA_COMPLETED)
4050                         break;
4051
4052                 wpa_s->cross_connect_in_use = 1;
4053                 wpa_msg(wpa_s->parent, MSG_INFO,
4054                         P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4055                         wpa_s->ifname, wpa_s->cross_connect_uplink);
4056                 break;
4057         }
4058 }
4059
4060
4061 int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
4062 {
4063         if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
4064             !wpa_s->p2p_in_provisioning)
4065                 return 0; /* not P2P client operation */
4066
4067         wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
4068                    "session overlap");
4069         if (wpa_s != wpa_s->parent)
4070                 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
4071
4072         if (wpa_s->global->p2p)
4073                 p2p_group_formation_failed(wpa_s->global->p2p);
4074
4075         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4076                              wpa_s->parent, NULL);
4077
4078         wpas_group_formation_completed(wpa_s, 0);
4079         return 1;
4080 }
4081
4082
4083 void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
4084 {
4085         struct p2p_channels chan;
4086
4087         if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
4088                 return;
4089
4090         os_memset(&chan, 0, sizeof(chan));
4091         if (wpas_p2p_setup_channels(wpa_s, &chan)) {
4092                 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
4093                            "channel list");
4094                 return;
4095         }
4096
4097         p2p_update_channel_list(wpa_s->global->p2p, &chan);
4098 }
4099
4100
4101 int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
4102 {
4103         struct wpa_global *global = wpa_s->global;
4104         int found = 0;
4105         const u8 *peer;
4106
4107         if (global->p2p == NULL)
4108                 return -1;
4109
4110         wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
4111
4112         if (wpa_s->pending_interface_name[0] &&
4113             !is_zero_ether_addr(wpa_s->pending_interface_addr))
4114                 found = 1;
4115
4116         peer = p2p_get_go_neg_peer(global->p2p);
4117         if (peer) {
4118                 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
4119                            MACSTR, MAC2STR(peer));
4120                 p2p_unauthorize(global->p2p, peer);
4121         }
4122
4123         wpas_p2p_stop_find(wpa_s);
4124
4125         for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4126                 if (wpa_s == global->p2p_group_formation &&
4127                     (wpa_s->p2p_in_provisioning ||
4128                      wpa_s->parent->pending_interface_type ==
4129                      WPA_IF_P2P_CLIENT)) {
4130                         wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
4131                                    "formation found - cancelling",
4132                                    wpa_s->ifname);
4133                         found = 1;
4134                         eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4135                                              wpa_s->parent, NULL);
4136                         wpas_p2p_group_delete(wpa_s);
4137                         break;
4138                 }
4139         }
4140
4141         if (!found) {
4142                 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
4143                 return -1;
4144         }
4145
4146         return 0;
4147 }
4148
4149
4150 void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
4151 {
4152         if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4153                 return;
4154
4155         wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
4156                    "being available anymore");
4157         wpa_s->removal_reason = P2P_GROUP_REMOVAL_UNAVAILABLE;
4158         wpas_p2p_group_delete(wpa_s);
4159 }
4160
4161
4162 void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
4163                                    int freq_24, int freq_5, int freq_overall)
4164 {
4165         struct p2p_data *p2p = wpa_s->global->p2p;
4166         if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4167                 return;
4168         p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
4169 }
4170
4171
4172 int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
4173 {
4174         u8 peer[ETH_ALEN];
4175         struct p2p_data *p2p = wpa_s->global->p2p;
4176
4177         if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4178                 return -1;
4179
4180         if (hwaddr_aton(addr, peer))
4181                 return -1;
4182
4183         return p2p_unauthorize(p2p, peer);
4184 }
4185
4186
4187 /**
4188  * wpas_p2p_disconnect - Disconnect from a P2P Group
4189  * @wpa_s: Pointer to wpa_supplicant data
4190  * Returns: 0 on success, -1 on failure
4191  *
4192  * This can be used to disconnect from a group in which the local end is a P2P
4193  * Client or to end a P2P Group in case the local end is the Group Owner. If a
4194  * virtual network interface was created for this group, that interface will be
4195  * removed. Otherwise, only the configured P2P group network will be removed
4196  * from the interface.
4197  */
4198 int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
4199 {
4200
4201         if (wpa_s == NULL)
4202                 return -1;
4203
4204         wpa_s->removal_reason = P2P_GROUP_REMOVAL_REQUESTED;
4205         wpas_p2p_group_delete(wpa_s);
4206
4207         return 0;
4208 }
4209
4210
4211 int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
4212 {
4213         if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4214                 return 0;
4215
4216         return p2p_in_progress(wpa_s->global->p2p);
4217 }
4218
4219
4220 void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
4221                               struct wpa_ssid *ssid)
4222
4223 {
4224         if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
4225             eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4226                                  wpa_s->parent, NULL) > 0) {
4227                 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
4228                            "P2P group network getting removed");
4229                 wpas_p2p_group_formation_timeout(wpa_s->parent, NULL);
4230         }
4231 }