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
p2p_build_invitation_req(struct p2p_data * p2p,struct p2p_device * peer,const u8 * go_dev_addr)17 static 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
p2p_build_invitation_resp(struct p2p_data * p2p,struct p2p_device * peer,u8 dialog_token,u8 status,const u8 * group_bssid,u8 reg_class,u8 channel,struct p2p_channels * channels)89 static 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
p2p_process_invitation_req(struct p2p_data * p2p,const u8 * sa,const u8 * data,size_t len,int rx_freq)149 void 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
348 fail:
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
398 out:
399 wpabuf_free(resp);
400 p2p_parse_free(&msg);
401 }
402
403
p2p_process_invitation_resp(struct p2p_data * p2p,const u8 * sa,const u8 * data,size_t len)404 void 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
p2p_invite_send(struct p2p_data * p2p,struct p2p_device * dev,const u8 * go_dev_addr)452 int 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
p2p_invitation_req_cb(struct p2p_data * p2p,int success)493 void 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
p2p_invitation_resp_cb(struct p2p_data * p2p,int success)517 void 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
p2p_invite(struct p2p_data * p2p,const u8 * peer,enum p2p_invite_role role,const u8 * bssid,const u8 * ssid,size_t ssid_len,unsigned int force_freq,const u8 * go_dev_addr,int persistent_group)535 int 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