p2p_invitation.c revision 1a2ce111ade9563d99ed7bb8156d6148ffd6c3a3
1/* 2 * Wi-Fi Direct - P2P Invitation procedure 3 * Copyright (c) 2010, Atheros Communications 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9#include "includes.h" 10 11#include "common.h" 12#include "common/ieee802_11_defs.h" 13#include "p2p_i.h" 14#include "p2p.h" 15 16 17static struct wpabuf * p2p_build_invitation_req(struct p2p_data *p2p, 18 struct p2p_device *peer, 19 const u8 *go_dev_addr) 20{ 21 struct wpabuf *buf; 22 u8 *len; 23 const u8 *dev_addr; 24 size_t extra = 0; 25 26#ifdef CONFIG_WIFI_DISPLAY 27 struct wpabuf *wfd_ie = p2p->wfd_ie_invitation; 28 if (wfd_ie && p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) { 29 size_t i; 30 for (i = 0; i < p2p->num_groups; i++) { 31 struct p2p_group *g = p2p->groups[i]; 32 struct wpabuf *ie; 33 if (os_memcmp(p2p_group_get_interface_addr(g), 34 p2p->inv_bssid, ETH_ALEN) != 0) 35 continue; 36 ie = p2p_group_get_wfd_ie(g); 37 if (ie) { 38 wfd_ie = ie; 39 break; 40 } 41 } 42 } 43 if (wfd_ie) 44 extra = wpabuf_len(wfd_ie); 45#endif /* CONFIG_WIFI_DISPLAY */ 46 47 buf = wpabuf_alloc(1000 + extra); 48 if (buf == NULL) 49 return NULL; 50 51 peer->dialog_token++; 52 if (peer->dialog_token == 0) 53 peer->dialog_token = 1; 54 p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_REQ, 55 peer->dialog_token); 56 57 len = p2p_buf_add_ie_hdr(buf); 58 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO || !p2p->inv_persistent) 59 p2p_buf_add_config_timeout(buf, 0, 0); 60 else 61 p2p_buf_add_config_timeout(buf, p2p->go_timeout, 62 p2p->client_timeout); 63 p2p_buf_add_invitation_flags(buf, p2p->inv_persistent ? 64 P2P_INVITATION_FLAGS_TYPE : 0); 65 p2p_buf_add_operating_channel(buf, p2p->cfg->country, 66 p2p->op_reg_class, p2p->op_channel); 67 if (p2p->inv_bssid_set) 68 p2p_buf_add_group_bssid(buf, p2p->inv_bssid); 69 p2p_buf_add_channel_list(buf, p2p->cfg->country, &p2p->channels); 70 if (go_dev_addr) 71 dev_addr = go_dev_addr; 72 else if (p2p->inv_role == P2P_INVITE_ROLE_CLIENT) 73 dev_addr = peer->info.p2p_device_addr; 74 else 75 dev_addr = p2p->cfg->dev_addr; 76 p2p_buf_add_group_id(buf, dev_addr, p2p->inv_ssid, p2p->inv_ssid_len); 77 p2p_buf_add_device_info(buf, p2p, peer); 78 p2p_buf_update_ie_hdr(buf, len); 79 80#ifdef CONFIG_WIFI_DISPLAY 81 if (wfd_ie) 82 wpabuf_put_buf(buf, wfd_ie); 83#endif /* CONFIG_WIFI_DISPLAY */ 84 85 return buf; 86} 87 88 89static struct wpabuf * p2p_build_invitation_resp(struct p2p_data *p2p, 90 struct p2p_device *peer, 91 u8 dialog_token, u8 status, 92 const u8 *group_bssid, 93 u8 reg_class, u8 channel, 94 struct p2p_channels *channels) 95{ 96 struct wpabuf *buf; 97 u8 *len; 98 size_t extra = 0; 99 100#ifdef CONFIG_WIFI_DISPLAY 101 struct wpabuf *wfd_ie = p2p->wfd_ie_invitation; 102 if (wfd_ie && group_bssid) { 103 size_t i; 104 for (i = 0; i < p2p->num_groups; i++) { 105 struct p2p_group *g = p2p->groups[i]; 106 struct wpabuf *ie; 107 if (os_memcmp(p2p_group_get_interface_addr(g), 108 group_bssid, ETH_ALEN) != 0) 109 continue; 110 ie = p2p_group_get_wfd_ie(g); 111 if (ie) { 112 wfd_ie = ie; 113 break; 114 } 115 } 116 } 117 if (wfd_ie) 118 extra = wpabuf_len(wfd_ie); 119#endif /* CONFIG_WIFI_DISPLAY */ 120 121 buf = wpabuf_alloc(1000 + extra); 122 if (buf == NULL) 123 return NULL; 124 125 p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_RESP, 126 dialog_token); 127 128 len = p2p_buf_add_ie_hdr(buf); 129 p2p_buf_add_status(buf, status); 130 p2p_buf_add_config_timeout(buf, 0, 0); /* FIX */ 131 if (reg_class && channel) 132 p2p_buf_add_operating_channel(buf, p2p->cfg->country, 133 reg_class, channel); 134 if (group_bssid) 135 p2p_buf_add_group_bssid(buf, group_bssid); 136 if (channels) 137 p2p_buf_add_channel_list(buf, p2p->cfg->country, channels); 138 p2p_buf_update_ie_hdr(buf, len); 139 140#ifdef CONFIG_WIFI_DISPLAY 141 if (wfd_ie) 142 wpabuf_put_buf(buf, wfd_ie); 143#endif /* CONFIG_WIFI_DISPLAY */ 144 145 return buf; 146} 147 148 149void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa, 150 const u8 *data, size_t len, int rx_freq) 151{ 152 struct p2p_device *dev; 153 struct p2p_message msg; 154 struct wpabuf *resp = NULL; 155 u8 status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 156 int freq; 157 int go = 0; 158 u8 group_bssid[ETH_ALEN], *bssid; 159 int op_freq = 0; 160 u8 reg_class = 0, channel = 0; 161 struct p2p_channels intersection, *channels = NULL; 162 int persistent; 163 164 os_memset(group_bssid, 0, sizeof(group_bssid)); 165 166 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 167 "P2P: Received Invitation Request from " MACSTR " (freq=%d)", 168 MAC2STR(sa), rx_freq); 169 170 if (p2p_parse(data, len, &msg)) 171 return; 172 173 dev = p2p_get_device(p2p, sa); 174 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) { 175 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 176 "P2P: Invitation Request from unknown peer " 177 MACSTR, MAC2STR(sa)); 178 179 if (p2p_add_device(p2p, sa, rx_freq, 0, data + 1, len - 1, 0)) 180 { 181 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 182 "P2P: Invitation Request add device failed " 183 MACSTR, MAC2STR(sa)); 184 status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 185 goto fail; 186 } 187 188 dev = p2p_get_device(p2p, sa); 189 if (dev == NULL) { 190 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 191 "P2P: Reject Invitation Request from unknown " 192 "peer " MACSTR, MAC2STR(sa)); 193 status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE; 194 goto fail; 195 } 196 } 197 198 if (!msg.group_id || !msg.channel_list) { 199 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 200 "P2P: Mandatory attribute missing in Invitation " 201 "Request from " MACSTR, MAC2STR(sa)); 202 status = P2P_SC_FAIL_INVALID_PARAMS; 203 goto fail; 204 } 205 206 if (msg.invitation_flags) 207 persistent = *msg.invitation_flags & P2P_INVITATION_FLAGS_TYPE; 208 else { 209 /* Invitation Flags is a mandatory attribute starting from P2P 210 * spec 1.06. As a backwards compatibility mechanism, assume 211 * the request was for a persistent group if the attribute is 212 * missing. 213 */ 214 wpa_printf(MSG_DEBUG, "P2P: Mandatory Invitation Flags " 215 "attribute missing from Invitation Request"); 216 persistent = 1; 217 } 218 219 if (p2p_peer_channels_check(p2p, &p2p->cfg->channels, dev, 220 msg.channel_list, msg.channel_list_len) < 221 0) { 222 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 223 "P2P: No common channels found"); 224 status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 225 goto fail; 226 } 227 228 if (p2p->cfg->invitation_process) { 229 status = p2p->cfg->invitation_process( 230 p2p->cfg->cb_ctx, sa, msg.group_bssid, msg.group_id, 231 msg.group_id + ETH_ALEN, msg.group_id_len - ETH_ALEN, 232 &go, group_bssid, &op_freq, persistent); 233 } 234 235 if (op_freq) { 236 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Invitation " 237 "processing forced frequency %d MHz", op_freq); 238 if (p2p_freq_to_channel(p2p->cfg->country, op_freq, 239 ®_class, &channel) < 0) { 240 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 241 "P2P: Unknown forced freq %d MHz from " 242 "invitation_process()", op_freq); 243 status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 244 goto fail; 245 } 246 247 p2p_channels_intersect(&p2p->cfg->channels, &dev->channels, 248 &intersection); 249 if (!p2p_channels_includes(&intersection, reg_class, channel)) 250 { 251 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 252 "P2P: forced freq %d MHz not in the supported " 253 "channels interaction", op_freq); 254 status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 255 goto fail; 256 } 257 258 if (status == P2P_SC_SUCCESS) 259 channels = &intersection; 260 } else { 261 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 262 "P2P: No forced channel from invitation processing - " 263 "figure out best one to use"); 264 265 p2p_channels_intersect(&p2p->cfg->channels, &dev->channels, 266 &intersection); 267 /* Default to own configuration as a starting point */ 268 p2p->op_reg_class = p2p->cfg->op_reg_class; 269 p2p->op_channel = p2p->cfg->op_channel; 270 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Own default " 271 "op_class %d channel %d", 272 p2p->op_reg_class, p2p->op_channel); 273 274 /* Use peer preference if specified and compatible */ 275 if (msg.operating_channel) { 276 int req_freq; 277 req_freq = p2p_channel_to_freq( 278 (const char *) msg.operating_channel, 279 msg.operating_channel[3], 280 msg.operating_channel[4]); 281 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Peer " 282 "operating channel preference: %d MHz", 283 req_freq); 284 if (req_freq > 0 && 285 p2p_channels_includes(&intersection, 286 msg.operating_channel[3], 287 msg.operating_channel[4])) { 288 p2p->op_reg_class = msg.operating_channel[3]; 289 p2p->op_channel = msg.operating_channel[4]; 290 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 291 "P2P: Use peer preference op_class %d " 292 "channel %d", 293 p2p->op_reg_class, p2p->op_channel); 294 } else { 295 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 296 "P2P: Cannot use peer channel " 297 "preference"); 298 } 299 } 300 301 if (!p2p_channels_includes(&intersection, p2p->op_reg_class, 302 p2p->op_channel)) { 303 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 304 "P2P: Initially selected channel (op_class %d " 305 "channel %d) not in channel intersection - try " 306 "to reselect", 307 p2p->op_reg_class, p2p->op_channel); 308 p2p_reselect_channel(p2p, &intersection); 309 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 310 "P2P: Re-selection result: op_class %d " 311 "channel %d", 312 p2p->op_reg_class, p2p->op_channel); 313 if (!p2p_channels_includes(&intersection, 314 p2p->op_reg_class, 315 p2p->op_channel)) { 316 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 317 "P2P: Peer does not support selected " 318 "operating channel (reg_class=%u " 319 "channel=%u)", 320 p2p->op_reg_class, p2p->op_channel); 321 status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 322 goto fail; 323 } 324 } 325 326 op_freq = p2p_channel_to_freq(p2p->cfg->country, 327 p2p->op_reg_class, 328 p2p->op_channel); 329 if (op_freq < 0) { 330 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 331 "P2P: Unknown operational channel " 332 "(country=%c%c reg_class=%u channel=%u)", 333 p2p->cfg->country[0], p2p->cfg->country[1], 334 p2p->op_reg_class, p2p->op_channel); 335 status = P2P_SC_FAIL_NO_COMMON_CHANNELS; 336 goto fail; 337 } 338 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Selected operating " 339 "channel - %d MHz", op_freq); 340 341 if (status == P2P_SC_SUCCESS) { 342 reg_class = p2p->op_reg_class; 343 channel = p2p->op_channel; 344 channels = &intersection; 345 } 346 } 347 348fail: 349 if (go && status == P2P_SC_SUCCESS && !is_zero_ether_addr(group_bssid)) 350 bssid = group_bssid; 351 else 352 bssid = NULL; 353 resp = p2p_build_invitation_resp(p2p, dev, msg.dialog_token, status, 354 bssid, reg_class, channel, channels); 355 356 if (resp == NULL) 357 goto out; 358 359 if (rx_freq > 0) 360 freq = rx_freq; 361 else 362 freq = p2p_channel_to_freq(p2p->cfg->country, 363 p2p->cfg->reg_class, 364 p2p->cfg->channel); 365 if (freq < 0) { 366 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 367 "P2P: Unknown regulatory class/channel"); 368 goto out; 369 } 370 371 /* 372 * Store copy of invitation data to be used when processing TX status 373 * callback for the Acton frame. 374 */ 375 os_memcpy(p2p->inv_sa, sa, ETH_ALEN); 376 if (msg.group_bssid) { 377 os_memcpy(p2p->inv_group_bssid, msg.group_bssid, ETH_ALEN); 378 p2p->inv_group_bssid_ptr = p2p->inv_group_bssid; 379 } else 380 p2p->inv_group_bssid_ptr = NULL; 381 if (msg.group_id_len - ETH_ALEN <= 32) { 382 os_memcpy(p2p->inv_ssid, msg.group_id + ETH_ALEN, 383 msg.group_id_len - ETH_ALEN); 384 p2p->inv_ssid_len = msg.group_id_len - ETH_ALEN; 385 } 386 os_memcpy(p2p->inv_go_dev_addr, msg.group_id, ETH_ALEN); 387 p2p->inv_status = status; 388 p2p->inv_op_freq = op_freq; 389 390 p2p->pending_action_state = P2P_PENDING_INVITATION_RESPONSE; 391 if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr, 392 p2p->cfg->dev_addr, 393 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) { 394 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 395 "P2P: Failed to send Action frame"); 396 } 397 398out: 399 wpabuf_free(resp); 400 p2p_parse_free(&msg); 401} 402 403 404void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa, 405 const u8 *data, size_t len) 406{ 407 struct p2p_device *dev; 408 struct p2p_message msg; 409 410 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 411 "P2P: Received Invitation Response from " MACSTR, 412 MAC2STR(sa)); 413 414 dev = p2p_get_device(p2p, sa); 415 if (dev == NULL) { 416 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 417 "P2P: Ignore Invitation Response from unknown peer " 418 MACSTR, MAC2STR(sa)); 419 return; 420 } 421 422 if (dev != p2p->invite_peer) { 423 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 424 "P2P: Ignore unexpected Invitation Response from peer " 425 MACSTR, MAC2STR(sa)); 426 return; 427 } 428 429 if (p2p_parse(data, len, &msg)) 430 return; 431 432 if (!msg.status) { 433 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 434 "P2P: Mandatory Status attribute missing in " 435 "Invitation Response from " MACSTR, MAC2STR(sa)); 436 p2p_parse_free(&msg); 437 return; 438 } 439 440 if (p2p->cfg->invitation_result) 441 p2p->cfg->invitation_result(p2p->cfg->cb_ctx, *msg.status, 442 msg.group_bssid); 443 444 p2p_parse_free(&msg); 445 446 p2p_clear_timeout(p2p); 447 p2p_set_state(p2p, P2P_IDLE); 448 p2p->invite_peer = NULL; 449} 450 451 452int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev, 453 const u8 *go_dev_addr) 454{ 455 struct wpabuf *req; 456 int freq; 457 458 freq = dev->listen_freq > 0 ? dev->listen_freq : dev->oper_freq; 459 if (freq <= 0) { 460 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 461 "P2P: No Listen/Operating frequency known for the " 462 "peer " MACSTR " to send Invitation Request", 463 MAC2STR(dev->info.p2p_device_addr)); 464 return -1; 465 } 466 467 req = p2p_build_invitation_req(p2p, dev, go_dev_addr); 468 if (req == NULL) 469 return -1; 470 if (p2p->state != P2P_IDLE) 471 p2p_stop_listen_for_freq(p2p, freq); 472 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 473 "P2P: Sending Invitation Request"); 474 p2p_set_state(p2p, P2P_INVITE); 475 p2p->pending_action_state = P2P_PENDING_INVITATION_REQUEST; 476 p2p->invite_peer = dev; 477 dev->invitation_reqs++; 478 if (p2p_send_action(p2p, freq, dev->info.p2p_device_addr, 479 p2p->cfg->dev_addr, dev->info.p2p_device_addr, 480 wpabuf_head(req), wpabuf_len(req), 200) < 0) { 481 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 482 "P2P: Failed to send Action frame"); 483 /* Use P2P find to recover and retry */ 484 p2p_set_timeout(p2p, 0, 0); 485 } 486 487 wpabuf_free(req); 488 489 return 0; 490} 491 492 493void p2p_invitation_req_cb(struct p2p_data *p2p, int success) 494{ 495 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 496 "P2P: Invitation Request TX callback: success=%d", success); 497 498 if (p2p->invite_peer == NULL) { 499 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 500 "P2P: No pending Invite"); 501 return; 502 } 503 504 /* 505 * Use P2P find, if needed, to find the other device from its listen 506 * channel. 507 */ 508 p2p_set_state(p2p, P2P_INVITE); 509#ifdef ANDROID_P2P 510 p2p_set_timeout(p2p, 0, 350000); 511#else 512 p2p_set_timeout(p2p, 0, 100000); 513#endif 514} 515 516 517void p2p_invitation_resp_cb(struct p2p_data *p2p, int success) 518{ 519 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 520 "P2P: Invitation Response TX callback: success=%d", success); 521 p2p->cfg->send_action_done(p2p->cfg->cb_ctx); 522 523 if (success && p2p->cfg->invitation_received) { 524 p2p->cfg->invitation_received(p2p->cfg->cb_ctx, 525 p2p->inv_sa, 526 p2p->inv_group_bssid_ptr, 527 p2p->inv_ssid, p2p->inv_ssid_len, 528 p2p->inv_go_dev_addr, 529 p2p->inv_status, 530 p2p->inv_op_freq); 531 } 532} 533 534 535int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role, 536 const u8 *bssid, const u8 *ssid, size_t ssid_len, 537 unsigned int force_freq, const u8 *go_dev_addr, 538 int persistent_group) 539{ 540 struct p2p_device *dev; 541 542 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 543 "P2P: Request to invite peer " MACSTR " role=%d persistent=%d " 544 "force_freq=%u", 545 MAC2STR(peer), role, persistent_group, force_freq); 546 if (bssid) 547 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 548 "P2P: Invitation for BSSID " MACSTR, MAC2STR(bssid)); 549 if (go_dev_addr) { 550 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 551 "P2P: Invitation for GO Device Address " MACSTR, 552 MAC2STR(go_dev_addr)); 553 os_memcpy(p2p->invite_go_dev_addr_buf, go_dev_addr, ETH_ALEN); 554 p2p->invite_go_dev_addr = p2p->invite_go_dev_addr_buf; 555 } else 556 p2p->invite_go_dev_addr = NULL; 557 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Invitation for SSID", 558 ssid, ssid_len); 559 560 dev = p2p_get_device(p2p, peer); 561 if (dev == NULL || (dev->listen_freq <= 0 && dev->oper_freq <= 0)) { 562 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 563 "P2P: Cannot invite unknown P2P Device " MACSTR, 564 MAC2STR(peer)); 565 return -1; 566 } 567 568 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) { 569 if (!(dev->info.dev_capab & 570 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) { 571 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 572 "P2P: Cannot invite a P2P Device " MACSTR 573 " that is in a group and is not discoverable", 574 MAC2STR(peer)); 575 } 576 /* TODO: use device discoverability request through GO */ 577 } 578 579 dev->invitation_reqs = 0; 580 581 if (force_freq) { 582 if (p2p_freq_to_channel(p2p->cfg->country, force_freq, 583 &p2p->op_reg_class, &p2p->op_channel) < 584 0) { 585 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, 586 "P2P: Unsupported frequency %u MHz", 587 force_freq); 588 return -1; 589 } 590#ifdef ANDROID_P2P 591 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "Single channel list %d", p2p->op_channel); 592#endif 593 p2p->channels.reg_classes = 1; 594 p2p->channels.reg_class[0].channels = 1; 595 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class; 596 p2p->channels.reg_class[0].channel[0] = p2p->op_channel; 597 } else { 598#ifdef ANDROID_P2P 599 wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "Full channel list"); 600#endif 601 p2p->op_reg_class = p2p->cfg->op_reg_class; 602 p2p->op_channel = p2p->cfg->op_channel; 603 os_memcpy(&p2p->channels, &p2p->cfg->channels, 604 sizeof(struct p2p_channels)); 605 } 606 607 if (p2p->state != P2P_IDLE) 608 p2p_stop_find(p2p); 609 610 p2p->inv_role = role; 611 p2p->inv_bssid_set = bssid != NULL; 612 if (bssid) 613 os_memcpy(p2p->inv_bssid, bssid, ETH_ALEN); 614 os_memcpy(p2p->inv_ssid, ssid, ssid_len); 615 p2p->inv_ssid_len = ssid_len; 616 p2p->inv_persistent = persistent_group; 617 return p2p_invite_send(p2p, dev, go_dev_addr); 618} 619