Disconnect hostapd from building in base
[dragonfly.git] / contrib / hostapd / src / p2p / p2p_invitation.c
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
17 static struct wpabuf * p2p_build_invitation_req(struct p2p_data *p2p,
18                                                 struct p2p_device *peer,
19                                                 const u8 *go_dev_addr,
20                                                 int dev_pw_id)
21 {
22         struct wpabuf *buf;
23         u8 *len;
24         const u8 *dev_addr;
25         size_t extra = 0;
26
27 #ifdef CONFIG_WIFI_DISPLAY
28         struct wpabuf *wfd_ie = p2p->wfd_ie_invitation;
29         if (wfd_ie && p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
30                 size_t i;
31                 for (i = 0; i < p2p->num_groups; i++) {
32                         struct p2p_group *g = p2p->groups[i];
33                         struct wpabuf *ie;
34                         if (os_memcmp(p2p_group_get_interface_addr(g),
35                                       p2p->inv_bssid, ETH_ALEN) != 0)
36                                 continue;
37                         ie = p2p_group_get_wfd_ie(g);
38                         if (ie) {
39                                 wfd_ie = ie;
40                                 break;
41                         }
42                 }
43         }
44         if (wfd_ie)
45                 extra = wpabuf_len(wfd_ie);
46 #endif /* CONFIG_WIFI_DISPLAY */
47
48         buf = wpabuf_alloc(1000 + extra);
49         if (buf == NULL)
50                 return NULL;
51
52         peer->dialog_token++;
53         if (peer->dialog_token == 0)
54                 peer->dialog_token = 1;
55         p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_REQ,
56                                       peer->dialog_token);
57
58         len = p2p_buf_add_ie_hdr(buf);
59         if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO || !p2p->inv_persistent)
60                 p2p_buf_add_config_timeout(buf, 0, 0);
61         else
62                 p2p_buf_add_config_timeout(buf, p2p->go_timeout,
63                                            p2p->client_timeout);
64         p2p_buf_add_invitation_flags(buf, p2p->inv_persistent ?
65                                      P2P_INVITATION_FLAGS_TYPE : 0);
66         if (p2p->inv_role != P2P_INVITE_ROLE_CLIENT ||
67             !(peer->flags & P2P_DEV_NO_PREF_CHAN))
68                 p2p_buf_add_operating_channel(buf, p2p->cfg->country,
69                                               p2p->op_reg_class,
70                                               p2p->op_channel);
71         if (p2p->inv_bssid_set)
72                 p2p_buf_add_group_bssid(buf, p2p->inv_bssid);
73         p2p_buf_add_channel_list(buf, p2p->cfg->country, &p2p->channels);
74         if (go_dev_addr)
75                 dev_addr = go_dev_addr;
76         else if (p2p->inv_role == P2P_INVITE_ROLE_CLIENT)
77                 dev_addr = peer->info.p2p_device_addr;
78         else
79                 dev_addr = p2p->cfg->dev_addr;
80         p2p_buf_add_group_id(buf, dev_addr, p2p->inv_ssid, p2p->inv_ssid_len);
81         p2p_buf_add_device_info(buf, p2p, peer);
82         p2p_buf_update_ie_hdr(buf, len);
83
84 #ifdef CONFIG_WIFI_DISPLAY
85         if (wfd_ie)
86                 wpabuf_put_buf(buf, wfd_ie);
87 #endif /* CONFIG_WIFI_DISPLAY */
88
89         if (dev_pw_id >= 0) {
90                 /* WSC IE in Invitation Request for NFC static handover */
91                 p2p_build_wps_ie(p2p, buf, dev_pw_id, 0);
92         }
93
94         return buf;
95 }
96
97
98 static struct wpabuf * p2p_build_invitation_resp(struct p2p_data *p2p,
99                                                  struct p2p_device *peer,
100                                                  u8 dialog_token, u8 status,
101                                                  const u8 *group_bssid,
102                                                  u8 reg_class, u8 channel,
103                                                  struct p2p_channels *channels)
104 {
105         struct wpabuf *buf;
106         u8 *len;
107         size_t extra = 0;
108
109 #ifdef CONFIG_WIFI_DISPLAY
110         struct wpabuf *wfd_ie = p2p->wfd_ie_invitation;
111         if (wfd_ie && group_bssid) {
112                 size_t i;
113                 for (i = 0; i < p2p->num_groups; i++) {
114                         struct p2p_group *g = p2p->groups[i];
115                         struct wpabuf *ie;
116                         if (os_memcmp(p2p_group_get_interface_addr(g),
117                                       group_bssid, ETH_ALEN) != 0)
118                                 continue;
119                         ie = p2p_group_get_wfd_ie(g);
120                         if (ie) {
121                                 wfd_ie = ie;
122                                 break;
123                         }
124                 }
125         }
126         if (wfd_ie)
127                 extra = wpabuf_len(wfd_ie);
128 #endif /* CONFIG_WIFI_DISPLAY */
129
130         buf = wpabuf_alloc(1000 + extra);
131         if (buf == NULL)
132                 return NULL;
133
134         p2p_buf_add_public_action_hdr(buf, P2P_INVITATION_RESP,
135                                       dialog_token);
136
137         len = p2p_buf_add_ie_hdr(buf);
138         p2p_buf_add_status(buf, status);
139         p2p_buf_add_config_timeout(buf, 0, 0); /* FIX */
140         if (reg_class && channel)
141                 p2p_buf_add_operating_channel(buf, p2p->cfg->country,
142                                               reg_class, channel);
143         if (group_bssid)
144                 p2p_buf_add_group_bssid(buf, group_bssid);
145         if (channels)
146                 p2p_buf_add_channel_list(buf, p2p->cfg->country, channels);
147         p2p_buf_update_ie_hdr(buf, len);
148
149 #ifdef CONFIG_WIFI_DISPLAY
150         if (wfd_ie)
151                 wpabuf_put_buf(buf, wfd_ie);
152 #endif /* CONFIG_WIFI_DISPLAY */
153
154         return buf;
155 }
156
157
158 void p2p_process_invitation_req(struct p2p_data *p2p, const u8 *sa,
159                                 const u8 *data, size_t len, int rx_freq)
160 {
161         struct p2p_device *dev;
162         struct p2p_message msg;
163         struct wpabuf *resp = NULL;
164         u8 status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
165         int freq;
166         int go = 0;
167         u8 group_bssid[ETH_ALEN], *bssid;
168         int op_freq = 0;
169         u8 reg_class = 0, channel = 0;
170         struct p2p_channels intersection, *channels = NULL;
171         int persistent;
172
173         os_memset(group_bssid, 0, sizeof(group_bssid));
174
175         p2p_dbg(p2p, "Received Invitation Request from " MACSTR " (freq=%d)",
176                 MAC2STR(sa), rx_freq);
177
178         if (p2p_parse(data, len, &msg))
179                 return;
180
181         dev = p2p_get_device(p2p, sa);
182         if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
183                 p2p_dbg(p2p, "Invitation Request from unknown peer " MACSTR,
184                         MAC2STR(sa));
185
186                 if (p2p_add_device(p2p, sa, rx_freq, NULL, 0, data + 1, len - 1,
187                                    0)) {
188                         p2p_dbg(p2p, "Invitation Request add device failed "
189                                 MACSTR, MAC2STR(sa));
190                         status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
191                         goto fail;
192                 }
193
194                 dev = p2p_get_device(p2p, sa);
195                 if (dev == NULL) {
196                         p2p_dbg(p2p, "Reject Invitation Request from unknown peer "
197                                 MACSTR, MAC2STR(sa));
198                         status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
199                         goto fail;
200                 }
201         }
202
203         if (!msg.group_id || !msg.channel_list) {
204                 p2p_dbg(p2p, "Mandatory attribute missing in Invitation Request from "
205                         MACSTR, MAC2STR(sa));
206                 status = P2P_SC_FAIL_INVALID_PARAMS;
207                 goto fail;
208         }
209
210         if (msg.invitation_flags)
211                 persistent = *msg.invitation_flags & P2P_INVITATION_FLAGS_TYPE;
212         else {
213                 /* Invitation Flags is a mandatory attribute starting from P2P
214                  * spec 1.06. As a backwards compatibility mechanism, assume
215                  * the request was for a persistent group if the attribute is
216                  * missing.
217                  */
218                 p2p_dbg(p2p, "Mandatory Invitation Flags attribute missing from Invitation Request");
219                 persistent = 1;
220         }
221
222         if (p2p_peer_channels_check(p2p, &p2p->cfg->channels, dev,
223                                     msg.channel_list, msg.channel_list_len) <
224             0) {
225                 p2p_dbg(p2p, "No common channels found");
226                 status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
227                 goto fail;
228         }
229
230         p2p_channels_intersect(&p2p->cfg->channels, &dev->channels,
231                                &intersection);
232
233         if (p2p->cfg->invitation_process) {
234                 status = p2p->cfg->invitation_process(
235                         p2p->cfg->cb_ctx, sa, msg.group_bssid, msg.group_id,
236                         msg.group_id + ETH_ALEN, msg.group_id_len - ETH_ALEN,
237                         &go, group_bssid, &op_freq, persistent, &intersection,
238                         msg.dev_password_id_present ? msg.dev_password_id : -1);
239         }
240
241         if (op_freq) {
242                 p2p_dbg(p2p, "Invitation processing forced frequency %d MHz",
243                         op_freq);
244                 if (p2p_freq_to_channel(op_freq, &reg_class, &channel) < 0) {
245                         p2p_dbg(p2p, "Unknown forced freq %d MHz from invitation_process()",
246                                 op_freq);
247                         status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
248                         goto fail;
249                 }
250
251                 if (!p2p_channels_includes(&intersection, reg_class, channel))
252                 {
253                         p2p_dbg(p2p, "forced freq %d MHz not in the supported channels interaction",
254                                 op_freq);
255                         status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
256                         goto fail;
257                 }
258
259                 if (status == P2P_SC_SUCCESS)
260                         channels = &intersection;
261         } else {
262                 p2p_dbg(p2p, "No forced channel from invitation processing - figure out best one to use");
263
264                 /* Default to own configuration as a starting point */
265                 p2p->op_reg_class = p2p->cfg->op_reg_class;
266                 p2p->op_channel = p2p->cfg->op_channel;
267                 p2p_dbg(p2p, "Own default op_class %d channel %d",
268                         p2p->op_reg_class, p2p->op_channel);
269
270                 /* Use peer preference if specified and compatible */
271                 if (msg.operating_channel) {
272                         int req_freq;
273                         req_freq = p2p_channel_to_freq(
274                                 msg.operating_channel[3],
275                                 msg.operating_channel[4]);
276                         p2p_dbg(p2p, "Peer operating channel preference: %d MHz",
277                                 req_freq);
278                         if (req_freq > 0 &&
279                             p2p_channels_includes(&intersection,
280                                                   msg.operating_channel[3],
281                                                   msg.operating_channel[4])) {
282                                 p2p->op_reg_class = msg.operating_channel[3];
283                                 p2p->op_channel = msg.operating_channel[4];
284                                 p2p_dbg(p2p, "Use peer preference op_class %d channel %d",
285                                         p2p->op_reg_class, p2p->op_channel);
286                         } else {
287                                 p2p_dbg(p2p, "Cannot use peer channel preference");
288                         }
289                 }
290
291                 if (!p2p_channels_includes(&intersection, p2p->op_reg_class,
292                                            p2p->op_channel)) {
293                         p2p_dbg(p2p, "Initially selected channel (op_class %d channel %d) not in channel intersection - try to reselect",
294                                 p2p->op_reg_class, p2p->op_channel);
295                         p2p_reselect_channel(p2p, &intersection);
296                         p2p_dbg(p2p, "Re-selection result: op_class %d channel %d",
297                                 p2p->op_reg_class, p2p->op_channel);
298                         if (!p2p_channels_includes(&intersection,
299                                                    p2p->op_reg_class,
300                                                    p2p->op_channel)) {
301                                 p2p_dbg(p2p, "Peer does not support selected operating channel (reg_class=%u channel=%u)",
302                                         p2p->op_reg_class, p2p->op_channel);
303                                 status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
304                                 goto fail;
305                         }
306                 } else if (!(dev->flags & P2P_DEV_FORCE_FREQ) &&
307                            !p2p->cfg->cfg_op_channel) {
308                         p2p_dbg(p2p, "Try to reselect channel selection with peer information received; previously selected op_class %u channel %u",
309                                 p2p->op_reg_class, p2p->op_channel);
310                         p2p_reselect_channel(p2p, &intersection);
311                 }
312
313                 op_freq = p2p_channel_to_freq(p2p->op_reg_class,
314                                               p2p->op_channel);
315                 if (op_freq < 0) {
316                         p2p_dbg(p2p, "Unknown operational channel (country=%c%c reg_class=%u channel=%u)",
317                                 p2p->cfg->country[0], p2p->cfg->country[1],
318                                 p2p->op_reg_class, p2p->op_channel);
319                         status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
320                         goto fail;
321                 }
322                 p2p_dbg(p2p, "Selected operating channel - %d MHz", op_freq);
323
324                 if (status == P2P_SC_SUCCESS) {
325                         reg_class = p2p->op_reg_class;
326                         channel = p2p->op_channel;
327                         channels = &intersection;
328                 }
329         }
330
331 fail:
332         if (go && status == P2P_SC_SUCCESS && !is_zero_ether_addr(group_bssid))
333                 bssid = group_bssid;
334         else
335                 bssid = NULL;
336         resp = p2p_build_invitation_resp(p2p, dev, msg.dialog_token, status,
337                                          bssid, reg_class, channel, channels);
338
339         if (resp == NULL)
340                 goto out;
341
342         if (rx_freq > 0)
343                 freq = rx_freq;
344         else
345                 freq = p2p_channel_to_freq(p2p->cfg->reg_class,
346                                            p2p->cfg->channel);
347         if (freq < 0) {
348                 p2p_dbg(p2p, "Unknown regulatory class/channel");
349                 goto out;
350         }
351
352         /*
353          * Store copy of invitation data to be used when processing TX status
354          * callback for the Acton frame.
355          */
356         os_memcpy(p2p->inv_sa, sa, ETH_ALEN);
357         if (msg.group_bssid) {
358                 os_memcpy(p2p->inv_group_bssid, msg.group_bssid, ETH_ALEN);
359                 p2p->inv_group_bssid_ptr = p2p->inv_group_bssid;
360         } else
361                 p2p->inv_group_bssid_ptr = NULL;
362         if (msg.group_id_len - ETH_ALEN <= 32) {
363                 os_memcpy(p2p->inv_ssid, msg.group_id + ETH_ALEN,
364                           msg.group_id_len - ETH_ALEN);
365                 p2p->inv_ssid_len = msg.group_id_len - ETH_ALEN;
366         }
367         os_memcpy(p2p->inv_go_dev_addr, msg.group_id, ETH_ALEN);
368         p2p->inv_status = status;
369         p2p->inv_op_freq = op_freq;
370
371         p2p->pending_action_state = P2P_PENDING_INVITATION_RESPONSE;
372         if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr,
373                             p2p->cfg->dev_addr,
374                             wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
375                 p2p_dbg(p2p, "Failed to send Action frame");
376         }
377
378 out:
379         wpabuf_free(resp);
380         p2p_parse_free(&msg);
381 }
382
383
384 void p2p_process_invitation_resp(struct p2p_data *p2p, const u8 *sa,
385                                  const u8 *data, size_t len)
386 {
387         struct p2p_device *dev;
388         struct p2p_message msg;
389         struct p2p_channels intersection, *channels = NULL;
390
391         p2p_dbg(p2p, "Received Invitation Response from " MACSTR,
392                 MAC2STR(sa));
393
394         dev = p2p_get_device(p2p, sa);
395         if (dev == NULL) {
396                 p2p_dbg(p2p, "Ignore Invitation Response from unknown peer "
397                         MACSTR, MAC2STR(sa));
398                 return;
399         }
400
401         if (dev != p2p->invite_peer) {
402                 p2p_dbg(p2p, "Ignore unexpected Invitation Response from peer "
403                         MACSTR, MAC2STR(sa));
404                 return;
405         }
406
407         if (p2p_parse(data, len, &msg))
408                 return;
409
410         if (!msg.status) {
411                 p2p_dbg(p2p, "Mandatory Status attribute missing in Invitation Response from "
412                         MACSTR, MAC2STR(sa));
413                 p2p_parse_free(&msg);
414                 return;
415         }
416
417         if (!msg.channel_list && *msg.status == P2P_SC_SUCCESS) {
418                 p2p_dbg(p2p, "Mandatory Channel List attribute missing in Invitation Response from "
419                         MACSTR, MAC2STR(sa));
420 #ifdef CONFIG_P2P_STRICT
421                 p2p_parse_free(&msg);
422                 return;
423 #endif /* CONFIG_P2P_STRICT */
424                 /* Try to survive without peer channel list */
425                 channels = &p2p->channels;
426         } else if (!msg.channel_list) {
427                 /* Non-success cases are not required to include Channel List */
428                 channels = &p2p->channels;
429         } else if (p2p_peer_channels_check(p2p, &p2p->channels, dev,
430                                            msg.channel_list,
431                                            msg.channel_list_len) < 0) {
432                 p2p_dbg(p2p, "No common channels found");
433                 p2p_parse_free(&msg);
434                 return;
435         } else {
436                 p2p_channels_intersect(&p2p->channels, &dev->channels,
437                                        &intersection);
438                 channels = &intersection;
439         }
440
441         if (p2p->cfg->invitation_result) {
442                 int freq = p2p_channel_to_freq(p2p->op_reg_class,
443                                                p2p->op_channel);
444                 if (freq < 0)
445                         freq = 0;
446                 p2p->cfg->invitation_result(p2p->cfg->cb_ctx, *msg.status,
447                                             msg.group_bssid, channels, sa,
448                                             freq);
449         }
450
451         p2p_parse_free(&msg);
452
453         p2p_clear_timeout(p2p);
454         p2p_set_state(p2p, P2P_IDLE);
455         p2p->invite_peer = NULL;
456 }
457
458
459 int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev,
460                     const u8 *go_dev_addr, int dev_pw_id)
461 {
462         struct wpabuf *req;
463         int freq;
464
465         freq = dev->listen_freq > 0 ? dev->listen_freq : dev->oper_freq;
466         if (freq <= 0)
467                 freq = dev->oob_go_neg_freq;
468         if (freq <= 0) {
469                 p2p_dbg(p2p, "No Listen/Operating frequency known for the peer "
470                         MACSTR " to send Invitation Request",
471                         MAC2STR(dev->info.p2p_device_addr));
472                 return -1;
473         }
474
475         req = p2p_build_invitation_req(p2p, dev, go_dev_addr, dev_pw_id);
476         if (req == NULL)
477                 return -1;
478         if (p2p->state != P2P_IDLE)
479                 p2p_stop_listen_for_freq(p2p, freq);
480         p2p_dbg(p2p, "Sending Invitation Request");
481         p2p_set_state(p2p, P2P_INVITE);
482         p2p->pending_action_state = P2P_PENDING_INVITATION_REQUEST;
483         p2p->invite_peer = dev;
484         dev->invitation_reqs++;
485         if (p2p_send_action(p2p, freq, dev->info.p2p_device_addr,
486                             p2p->cfg->dev_addr, dev->info.p2p_device_addr,
487                             wpabuf_head(req), wpabuf_len(req), 500) < 0) {
488                 p2p_dbg(p2p, "Failed to send Action frame");
489                 /* Use P2P find to recover and retry */
490                 p2p_set_timeout(p2p, 0, 0);
491         }
492
493         wpabuf_free(req);
494
495         return 0;
496 }
497
498
499 void p2p_invitation_req_cb(struct p2p_data *p2p, int success)
500 {
501         p2p_dbg(p2p, "Invitation Request TX callback: success=%d", success);
502
503         if (p2p->invite_peer == NULL) {
504                 p2p_dbg(p2p, "No pending Invite");
505                 return;
506         }
507
508         /*
509          * Use P2P find, if needed, to find the other device from its listen
510          * channel.
511          */
512         p2p_set_state(p2p, P2P_INVITE);
513         p2p_set_timeout(p2p, 0, success ? 500000 : 100000);
514 }
515
516
517 void p2p_invitation_resp_cb(struct p2p_data *p2p, int success)
518 {
519         p2p_dbg(p2p, "Invitation Response TX callback: success=%d", success);
520         p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
521
522         if (!success)
523                 p2p_dbg(p2p, "Assume Invitation Response was actually received by the peer even though Ack was not reported");
524
525         if (p2p->cfg->invitation_received) {
526                 p2p->cfg->invitation_received(p2p->cfg->cb_ctx,
527                                               p2p->inv_sa,
528                                               p2p->inv_group_bssid_ptr,
529                                               p2p->inv_ssid, p2p->inv_ssid_len,
530                                               p2p->inv_go_dev_addr,
531                                               p2p->inv_status,
532                                               p2p->inv_op_freq);
533         }
534 }
535
536
537 int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
538                const u8 *bssid, const u8 *ssid, size_t ssid_len,
539                unsigned int force_freq, const u8 *go_dev_addr,
540                int persistent_group, unsigned int pref_freq, int dev_pw_id)
541 {
542         struct p2p_device *dev;
543
544         p2p_dbg(p2p, "Request to invite peer " MACSTR " role=%d persistent=%d "
545                 "force_freq=%u",
546                 MAC2STR(peer), role, persistent_group, force_freq);
547         if (bssid)
548                 p2p_dbg(p2p, "Invitation for BSSID " MACSTR, MAC2STR(bssid));
549         if (go_dev_addr) {
550                 p2p_dbg(p2p, "Invitation for GO Device Address " MACSTR,
551                         MAC2STR(go_dev_addr));
552                 os_memcpy(p2p->invite_go_dev_addr_buf, go_dev_addr, ETH_ALEN);
553                 p2p->invite_go_dev_addr = p2p->invite_go_dev_addr_buf;
554         } else
555                 p2p->invite_go_dev_addr = NULL;
556         wpa_hexdump_ascii(MSG_DEBUG, "Invitation for SSID",
557                           ssid, ssid_len);
558         if (dev_pw_id >= 0) {
559                 p2p_dbg(p2p, "Invitation to use Device Password ID %d",
560                         dev_pw_id);
561         }
562         p2p->invite_dev_pw_id = dev_pw_id;
563
564         dev = p2p_get_device(p2p, peer);
565         if (dev == NULL || (dev->listen_freq <= 0 && dev->oper_freq <= 0 &&
566                             dev->oob_go_neg_freq <= 0)) {
567                 p2p_dbg(p2p, "Cannot invite unknown P2P Device " MACSTR,
568                         MAC2STR(peer));
569                 return -1;
570         }
571
572         if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq,
573                                 role != P2P_INVITE_ROLE_CLIENT) < 0)
574                 return -1;
575
576         if (persistent_group && role == P2P_INVITE_ROLE_CLIENT && !force_freq &&
577             !pref_freq)
578                 dev->flags |= P2P_DEV_NO_PREF_CHAN;
579         else
580                 dev->flags &= ~P2P_DEV_NO_PREF_CHAN;
581
582         if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
583                 if (!(dev->info.dev_capab &
584                       P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
585                         p2p_dbg(p2p, "Cannot invite a P2P Device " MACSTR
586                                 " that is in a group and is not discoverable",
587                                 MAC2STR(peer));
588                 }
589                 /* TODO: use device discoverability request through GO */
590         }
591
592         dev->invitation_reqs = 0;
593
594         if (p2p->state != P2P_IDLE)
595                 p2p_stop_find(p2p);
596
597         p2p->inv_role = role;
598         p2p->inv_bssid_set = bssid != NULL;
599         if (bssid)
600                 os_memcpy(p2p->inv_bssid, bssid, ETH_ALEN);
601         os_memcpy(p2p->inv_ssid, ssid, ssid_len);
602         p2p->inv_ssid_len = ssid_len;
603         p2p->inv_persistent = persistent_group;
604         return p2p_invite_send(p2p, dev, go_dev_addr, dev_pw_id);
605 }