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					&reg_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