blob: c5bf41fe820fa0df5c1b27d85472e2dbd0d0ee9c [file] [log] [blame]
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001/*
2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07007 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eloop.h"
13#include "common/ieee802_11_defs.h"
14#include "common/ieee802_11_common.h"
15#include "wps/wps_i.h"
16#include "p2p_i.h"
17#include "p2p.h"
18
19
20static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx);
21static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev);
22static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
23 const u8 *sa, const u8 *data, size_t len,
24 int rx_freq);
25static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
26 const u8 *sa, const u8 *data,
27 size_t len);
28static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx);
29static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx);
30
31
32/*
33 * p2p_scan recovery timeout
34 *
35 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
36 * timeout for this to avoid hitting P2P timeout unnecessarily.
37 */
38#define P2P_SCAN_TIMEOUT 35
39
40/**
41 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
42 * entries will be removed
43 */
Dmitry Shmidt2093d062014-01-17 10:58:50 -080044#ifndef P2P_PEER_EXPIRATION_AGE
45#define P2P_PEER_EXPIRATION_AGE 60
Dmitry Shmidt18463232014-01-24 12:29:41 -080046#endif /* P2P_PEER_EXPIRATION_AGE */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070047
48#define P2P_PEER_EXPIRATION_INTERVAL (P2P_PEER_EXPIRATION_AGE / 2)
49
50static void p2p_expire_peers(struct p2p_data *p2p)
51{
52 struct p2p_device *dev, *n;
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -080053 struct os_reltime now;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -080054 size_t i;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070055
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -080056 os_get_reltime(&now);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070057 dl_list_for_each_safe(dev, n, &p2p->devices, struct p2p_device, list) {
58 if (dev->last_seen.sec + P2P_PEER_EXPIRATION_AGE >= now.sec)
59 continue;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -080060
Dmitry Shmidt9e3f8ee2014-01-17 10:52:01 -080061 if (dev == p2p->go_neg_peer) {
62 /*
63 * GO Negotiation is in progress with the peer, so
64 * don't expire the peer entry until GO Negotiation
65 * fails or times out.
66 */
67 continue;
68 }
69
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -080070 if (p2p->cfg->go_connected &&
71 p2p->cfg->go_connected(p2p->cfg->cb_ctx,
72 dev->info.p2p_device_addr)) {
73 /*
74 * We are connected as a client to a group in which the
75 * peer is the GO, so do not expire the peer entry.
76 */
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -080077 os_get_reltime(&dev->last_seen);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -080078 continue;
79 }
80
81 for (i = 0; i < p2p->num_groups; i++) {
82 if (p2p_group_is_client_connected(
83 p2p->groups[i], dev->info.p2p_device_addr))
84 break;
85 }
86 if (i < p2p->num_groups) {
87 /*
88 * The peer is connected as a client in a group where
89 * we are the GO, so do not expire the peer entry.
90 */
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -080091 os_get_reltime(&dev->last_seen);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -080092 continue;
93 }
94
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -070095 p2p_dbg(p2p, "Expiring old peer entry " MACSTR,
96 MAC2STR(dev->info.p2p_device_addr));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070097 dl_list_del(&dev->list);
98 p2p_device_free(p2p, dev);
99 }
100}
101
102
103static void p2p_expiration_timeout(void *eloop_ctx, void *timeout_ctx)
104{
105 struct p2p_data *p2p = eloop_ctx;
106 p2p_expire_peers(p2p);
107 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
108 p2p_expiration_timeout, p2p, NULL);
109}
110
111
112static const char * p2p_state_txt(int state)
113{
114 switch (state) {
115 case P2P_IDLE:
116 return "IDLE";
117 case P2P_SEARCH:
118 return "SEARCH";
119 case P2P_CONNECT:
120 return "CONNECT";
121 case P2P_CONNECT_LISTEN:
122 return "CONNECT_LISTEN";
123 case P2P_GO_NEG:
124 return "GO_NEG";
125 case P2P_LISTEN_ONLY:
126 return "LISTEN_ONLY";
127 case P2P_WAIT_PEER_CONNECT:
128 return "WAIT_PEER_CONNECT";
129 case P2P_WAIT_PEER_IDLE:
130 return "WAIT_PEER_IDLE";
131 case P2P_SD_DURING_FIND:
132 return "SD_DURING_FIND";
133 case P2P_PROVISIONING:
134 return "PROVISIONING";
135 case P2P_PD_DURING_FIND:
136 return "PD_DURING_FIND";
137 case P2P_INVITE:
138 return "INVITE";
139 case P2P_INVITE_LISTEN:
140 return "INVITE_LISTEN";
141 default:
142 return "?";
143 }
144}
145
146
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -0700147const char * p2p_get_state_txt(struct p2p_data *p2p)
148{
149 return p2p_state_txt(p2p->state);
150}
151
152
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800153u16 p2p_get_provisioning_info(struct p2p_data *p2p, const u8 *addr)
154{
155 struct p2p_device *dev = NULL;
156
157 if (!addr || !p2p)
158 return 0;
159
160 dev = p2p_get_device(p2p, addr);
161 if (dev)
162 return dev->wps_prov_info;
163 else
164 return 0;
165}
166
167
Dmitry Shmidt04949592012-07-19 12:16:46 -0700168void p2p_clear_provisioning_info(struct p2p_data *p2p, const u8 *addr)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800169{
170 struct p2p_device *dev = NULL;
171
Dmitry Shmidt04949592012-07-19 12:16:46 -0700172 if (!addr || !p2p)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800173 return;
174
Dmitry Shmidt04949592012-07-19 12:16:46 -0700175 dev = p2p_get_device(p2p, addr);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800176 if (dev)
177 dev->wps_prov_info = 0;
178}
179
180
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700181void p2p_set_state(struct p2p_data *p2p, int new_state)
182{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700183 p2p_dbg(p2p, "State %s -> %s",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700184 p2p_state_txt(p2p->state), p2p_state_txt(new_state));
185 p2p->state = new_state;
186}
187
188
189void p2p_set_timeout(struct p2p_data *p2p, unsigned int sec, unsigned int usec)
190{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700191 p2p_dbg(p2p, "Set timeout (state=%s): %u.%06u sec",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700192 p2p_state_txt(p2p->state), sec, usec);
193 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
194 eloop_register_timeout(sec, usec, p2p_state_timeout, p2p, NULL);
195}
196
197
198void p2p_clear_timeout(struct p2p_data *p2p)
199{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700200 p2p_dbg(p2p, "Clear timeout (state=%s)", p2p_state_txt(p2p->state));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700201 eloop_cancel_timeout(p2p_state_timeout, p2p, NULL);
202}
203
204
205void p2p_go_neg_failed(struct p2p_data *p2p, struct p2p_device *peer,
206 int status)
207{
208 struct p2p_go_neg_results res;
209 p2p_clear_timeout(p2p);
210 p2p_set_state(p2p, P2P_IDLE);
Dmitry Shmidt8c652892013-03-01 10:14:01 -0800211 if (p2p->go_neg_peer) {
212 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800213 p2p->go_neg_peer->wps_method = WPS_NOT_READY;
Dmitry Shmidtcf32e602014-01-28 10:57:39 -0800214 p2p->go_neg_peer->oob_pw_id = 0;
Dmitry Shmidt8c652892013-03-01 10:14:01 -0800215 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700216 p2p->go_neg_peer = NULL;
217
218 os_memset(&res, 0, sizeof(res));
219 res.status = status;
220 if (peer) {
221 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr,
222 ETH_ALEN);
223 os_memcpy(res.peer_interface_addr, peer->intended_addr,
224 ETH_ALEN);
225 }
226 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
227}
228
229
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800230static void p2p_listen_in_find(struct p2p_data *p2p, int dev_disc)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700231{
232 unsigned int r, tu;
233 int freq;
234 struct wpabuf *ies;
235
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700236 p2p_dbg(p2p, "Starting short listen state (state=%s)",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700237 p2p_state_txt(p2p->state));
238
Dmitry Shmidt4b060592013-04-29 16:42:49 -0700239 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700240 if (freq < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700241 p2p_dbg(p2p, "Unknown regulatory class/channel");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700242 return;
243 }
244
245 os_get_random((u8 *) &r, sizeof(r));
246 tu = (r % ((p2p->max_disc_int - p2p->min_disc_int) + 1) +
247 p2p->min_disc_int) * 100;
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800248 if (p2p->max_disc_tu >= 0 && tu > (unsigned int) p2p->max_disc_tu)
249 tu = p2p->max_disc_tu;
250 if (!dev_disc && tu < 100)
251 tu = 100; /* Need to wait in non-device discovery use cases */
252 if (p2p->cfg->max_listen && 1024 * tu / 1000 > p2p->cfg->max_listen)
253 tu = p2p->cfg->max_listen * 1000 / 1024;
254
255 if (tu == 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700256 p2p_dbg(p2p, "Skip listen state since duration was 0 TU");
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800257 p2p_set_timeout(p2p, 0, 0);
258 return;
259 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700260
261 p2p->pending_listen_freq = freq;
262 p2p->pending_listen_sec = 0;
263 p2p->pending_listen_usec = 1024 * tu;
264
265 ies = p2p_build_probe_resp_ies(p2p);
266 if (ies == NULL)
267 return;
268
269 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, 1024 * tu / 1000,
270 ies) < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700271 p2p_dbg(p2p, "Failed to start listen mode");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700272 p2p->pending_listen_freq = 0;
273 }
274 wpabuf_free(ies);
275}
276
277
278int p2p_listen(struct p2p_data *p2p, unsigned int timeout)
279{
280 int freq;
281 struct wpabuf *ies;
282
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700283 p2p_dbg(p2p, "Going to listen(only) state");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700284
Dmitry Shmidt4b060592013-04-29 16:42:49 -0700285 freq = p2p_channel_to_freq(p2p->cfg->reg_class, p2p->cfg->channel);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700286 if (freq < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700287 p2p_dbg(p2p, "Unknown regulatory class/channel");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700288 return -1;
289 }
290
291 p2p->pending_listen_freq = freq;
292 p2p->pending_listen_sec = timeout / 1000;
293 p2p->pending_listen_usec = (timeout % 1000) * 1000;
294
295 if (p2p->p2p_scan_running) {
Dmitry Shmidt04949592012-07-19 12:16:46 -0700296 if (p2p->start_after_scan == P2P_AFTER_SCAN_CONNECT) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700297 p2p_dbg(p2p, "p2p_scan running - connect is already pending - skip listen");
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800298 return 0;
299 }
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700300 p2p_dbg(p2p, "p2p_scan running - delay start of listen state");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700301 p2p->start_after_scan = P2P_AFTER_SCAN_LISTEN;
302 return 0;
303 }
304
305 ies = p2p_build_probe_resp_ies(p2p);
306 if (ies == NULL)
307 return -1;
308
309 if (p2p->cfg->start_listen(p2p->cfg->cb_ctx, freq, timeout, ies) < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700310 p2p_dbg(p2p, "Failed to start listen mode");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700311 p2p->pending_listen_freq = 0;
312 wpabuf_free(ies);
313 return -1;
314 }
315 wpabuf_free(ies);
316
317 p2p_set_state(p2p, P2P_LISTEN_ONLY);
318
319 return 0;
320}
321
322
323static void p2p_device_clear_reported(struct p2p_data *p2p)
324{
325 struct p2p_device *dev;
326 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list)
327 dev->flags &= ~P2P_DEV_REPORTED;
328}
329
330
331/**
332 * p2p_get_device - Fetch a peer entry
333 * @p2p: P2P module context from p2p_init()
334 * @addr: P2P Device Address of the peer
335 * Returns: Pointer to the device entry or %NULL if not found
336 */
337struct p2p_device * p2p_get_device(struct p2p_data *p2p, const u8 *addr)
338{
339 struct p2p_device *dev;
340 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
341 if (os_memcmp(dev->info.p2p_device_addr, addr, ETH_ALEN) == 0)
342 return dev;
343 }
344 return NULL;
345}
346
347
348/**
349 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
350 * @p2p: P2P module context from p2p_init()
351 * @addr: P2P Interface Address of the peer
352 * Returns: Pointer to the device entry or %NULL if not found
353 */
354struct p2p_device * p2p_get_device_interface(struct p2p_data *p2p,
355 const u8 *addr)
356{
357 struct p2p_device *dev;
358 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
359 if (os_memcmp(dev->interface_addr, addr, ETH_ALEN) == 0)
360 return dev;
361 }
362 return NULL;
363}
364
365
366/**
367 * p2p_create_device - Create a peer entry
368 * @p2p: P2P module context from p2p_init()
369 * @addr: P2P Device Address of the peer
370 * Returns: Pointer to the device entry or %NULL on failure
371 *
372 * If there is already an entry for the peer, it will be returned instead of
373 * creating a new one.
374 */
375static struct p2p_device * p2p_create_device(struct p2p_data *p2p,
376 const u8 *addr)
377{
378 struct p2p_device *dev, *oldest = NULL;
379 size_t count = 0;
380
381 dev = p2p_get_device(p2p, addr);
382 if (dev)
383 return dev;
384
385 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
386 count++;
387 if (oldest == NULL ||
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800388 os_reltime_before(&dev->last_seen, &oldest->last_seen))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700389 oldest = dev;
390 }
391 if (count + 1 > p2p->cfg->max_peers && oldest) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700392 p2p_dbg(p2p, "Remove oldest peer entry to make room for a new peer");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700393 dl_list_del(&oldest->list);
394 p2p_device_free(p2p, oldest);
395 }
396
397 dev = os_zalloc(sizeof(*dev));
398 if (dev == NULL)
399 return NULL;
400 dl_list_add(&p2p->devices, &dev->list);
401 os_memcpy(dev->info.p2p_device_addr, addr, ETH_ALEN);
402
403 return dev;
404}
405
406
407static void p2p_copy_client_info(struct p2p_device *dev,
408 struct p2p_client_info *cli)
409{
410 os_memcpy(dev->info.device_name, cli->dev_name, cli->dev_name_len);
411 dev->info.device_name[cli->dev_name_len] = '\0';
412 dev->info.dev_capab = cli->dev_capab;
413 dev->info.config_methods = cli->config_methods;
414 os_memcpy(dev->info.pri_dev_type, cli->pri_dev_type, 8);
415 dev->info.wps_sec_dev_type_list_len = 8 * cli->num_sec_dev_types;
416 os_memcpy(dev->info.wps_sec_dev_type_list, cli->sec_dev_types,
417 dev->info.wps_sec_dev_type_list_len);
418}
419
420
421static int p2p_add_group_clients(struct p2p_data *p2p, const u8 *go_dev_addr,
422 const u8 *go_interface_addr, int freq,
423 const u8 *gi, size_t gi_len)
424{
425 struct p2p_group_info info;
426 size_t c;
427 struct p2p_device *dev;
428
429 if (gi == NULL)
430 return 0;
431
432 if (p2p_group_info_parse(gi, gi_len, &info) < 0)
433 return -1;
434
435 /*
436 * Clear old data for this group; if the devices are still in the
437 * group, the information will be restored in the loop following this.
438 */
439 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800440 if (os_memcmp(dev->member_in_go_iface, go_interface_addr,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700441 ETH_ALEN) == 0) {
442 os_memset(dev->member_in_go_iface, 0, ETH_ALEN);
443 os_memset(dev->member_in_go_dev, 0, ETH_ALEN);
444 }
445 }
446
447 for (c = 0; c < info.num_clients; c++) {
448 struct p2p_client_info *cli = &info.client[c];
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800449 if (os_memcmp(cli->p2p_device_addr, p2p->cfg->dev_addr,
450 ETH_ALEN) == 0)
451 continue; /* ignore our own entry */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700452 dev = p2p_get_device(p2p, cli->p2p_device_addr);
453 if (dev) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700454 if (dev->flags & (P2P_DEV_GROUP_CLIENT_ONLY |
Dmitry Shmidt04949592012-07-19 12:16:46 -0700455 P2P_DEV_PROBE_REQ_ONLY)) {
456 /*
457 * Update information since we have not
458 * received this directly from the client.
459 */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700460 p2p_copy_client_info(dev, cli);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700461 } else {
462 /*
463 * Need to update P2P Client Discoverability
464 * flag since it is valid only in P2P Group
465 * Info attribute.
466 */
467 dev->info.dev_capab &=
468 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
469 dev->info.dev_capab |=
470 cli->dev_capab &
471 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
472 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700473 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
474 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
475 }
476 } else {
477 dev = p2p_create_device(p2p, cli->p2p_device_addr);
478 if (dev == NULL)
479 continue;
480 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
481 p2p_copy_client_info(dev, cli);
482 dev->oper_freq = freq;
483 p2p->cfg->dev_found(p2p->cfg->cb_ctx,
484 dev->info.p2p_device_addr,
485 &dev->info, 1);
486 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
487 }
488
489 os_memcpy(dev->interface_addr, cli->p2p_interface_addr,
490 ETH_ALEN);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800491 os_get_reltime(&dev->last_seen);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700492 os_memcpy(dev->member_in_go_dev, go_dev_addr, ETH_ALEN);
493 os_memcpy(dev->member_in_go_iface, go_interface_addr,
494 ETH_ALEN);
495 }
496
497 return 0;
498}
499
500
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700501static void p2p_copy_wps_info(struct p2p_data *p2p, struct p2p_device *dev,
502 int probe_req, const struct p2p_message *msg)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700503{
504 os_memcpy(dev->info.device_name, msg->device_name,
505 sizeof(dev->info.device_name));
506
507 if (msg->manufacturer &&
508 msg->manufacturer_len < sizeof(dev->info.manufacturer)) {
509 os_memset(dev->info.manufacturer, 0,
510 sizeof(dev->info.manufacturer));
511 os_memcpy(dev->info.manufacturer, msg->manufacturer,
512 msg->manufacturer_len);
513 }
514
515 if (msg->model_name &&
516 msg->model_name_len < sizeof(dev->info.model_name)) {
517 os_memset(dev->info.model_name, 0,
518 sizeof(dev->info.model_name));
519 os_memcpy(dev->info.model_name, msg->model_name,
520 msg->model_name_len);
521 }
522
523 if (msg->model_number &&
524 msg->model_number_len < sizeof(dev->info.model_number)) {
525 os_memset(dev->info.model_number, 0,
526 sizeof(dev->info.model_number));
527 os_memcpy(dev->info.model_number, msg->model_number,
528 msg->model_number_len);
529 }
530
531 if (msg->serial_number &&
532 msg->serial_number_len < sizeof(dev->info.serial_number)) {
533 os_memset(dev->info.serial_number, 0,
534 sizeof(dev->info.serial_number));
535 os_memcpy(dev->info.serial_number, msg->serial_number,
536 msg->serial_number_len);
537 }
538
539 if (msg->pri_dev_type)
540 os_memcpy(dev->info.pri_dev_type, msg->pri_dev_type,
541 sizeof(dev->info.pri_dev_type));
542 else if (msg->wps_pri_dev_type)
543 os_memcpy(dev->info.pri_dev_type, msg->wps_pri_dev_type,
544 sizeof(dev->info.pri_dev_type));
545
546 if (msg->wps_sec_dev_type_list) {
547 os_memcpy(dev->info.wps_sec_dev_type_list,
548 msg->wps_sec_dev_type_list,
549 msg->wps_sec_dev_type_list_len);
550 dev->info.wps_sec_dev_type_list_len =
551 msg->wps_sec_dev_type_list_len;
552 }
553
554 if (msg->capability) {
Dmitry Shmidt04949592012-07-19 12:16:46 -0700555 /*
556 * P2P Client Discoverability bit is reserved in all frames
557 * that use this function, so do not change its value here.
558 */
559 dev->info.dev_capab &= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
560 dev->info.dev_capab |= msg->capability[0] &
561 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700562 dev->info.group_capab = msg->capability[1];
563 }
564
565 if (msg->ext_listen_timing) {
566 dev->ext_listen_period = WPA_GET_LE16(msg->ext_listen_timing);
567 dev->ext_listen_interval =
568 WPA_GET_LE16(msg->ext_listen_timing + 2);
569 }
Dmitry Shmidt04949592012-07-19 12:16:46 -0700570
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700571 if (!probe_req) {
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800572 u16 new_config_methods;
573 new_config_methods = msg->config_methods ?
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700574 msg->config_methods : msg->wps_config_methods;
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800575 if (new_config_methods &&
576 dev->info.config_methods != new_config_methods) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700577 p2p_dbg(p2p, "Update peer " MACSTR
578 " config_methods 0x%x -> 0x%x",
579 MAC2STR(dev->info.p2p_device_addr),
580 dev->info.config_methods,
581 new_config_methods);
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800582 dev->info.config_methods = new_config_methods;
583 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700584 }
585}
586
587
588/**
Dmitry Shmidt04949592012-07-19 12:16:46 -0700589 * p2p_add_device - Add peer entries based on scan results or P2P frames
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700590 * @p2p: P2P module context from p2p_init()
591 * @addr: Source address of Beacon or Probe Response frame (may be either
592 * P2P Device Address or P2P Interface Address)
593 * @level: Signal level (signal strength of the received frame from the peer)
594 * @freq: Frequency on which the Beacon or Probe Response frame was received
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800595 * @rx_time: Time when the result was received
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700596 * @ies: IEs from the Beacon or Probe Response frame
597 * @ies_len: Length of ies buffer in octets
Dmitry Shmidt04949592012-07-19 12:16:46 -0700598 * @scan_res: Whether this was based on scan results
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700599 * Returns: 0 on success, -1 on failure
600 *
601 * If the scan result is for a GO, the clients in the group will also be added
602 * to the peer table. This function can also be used with some other frames
603 * like Provision Discovery Request that contains P2P Capability and P2P Device
604 * Info attributes.
605 */
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800606int p2p_add_device(struct p2p_data *p2p, const u8 *addr, int freq,
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800607 struct os_reltime *rx_time, int level, const u8 *ies,
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800608 size_t ies_len, int scan_res)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700609{
610 struct p2p_device *dev;
611 struct p2p_message msg;
612 const u8 *p2p_dev_addr;
613 int i;
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800614 struct os_reltime time_now;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700615
616 os_memset(&msg, 0, sizeof(msg));
617 if (p2p_parse_ies(ies, ies_len, &msg)) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700618 p2p_dbg(p2p, "Failed to parse P2P IE for a device entry");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700619 p2p_parse_free(&msg);
620 return -1;
621 }
622
623 if (msg.p2p_device_addr)
624 p2p_dev_addr = msg.p2p_device_addr;
625 else if (msg.device_id)
626 p2p_dev_addr = msg.device_id;
627 else {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700628 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700629 p2p_parse_free(&msg);
630 return -1;
631 }
632
633 if (!is_zero_ether_addr(p2p->peer_filter) &&
634 os_memcmp(p2p_dev_addr, p2p->peer_filter, ETH_ALEN) != 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700635 p2p_dbg(p2p, "Do not add peer filter for " MACSTR
636 " due to peer filter", MAC2STR(p2p_dev_addr));
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800637 p2p_parse_free(&msg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700638 return 0;
639 }
640
641 dev = p2p_create_device(p2p, p2p_dev_addr);
642 if (dev == NULL) {
643 p2p_parse_free(&msg);
644 return -1;
645 }
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800646
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800647 if (rx_time == NULL) {
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800648 os_get_reltime(&time_now);
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800649 rx_time = &time_now;
650 }
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800651
652 /*
653 * Update the device entry only if the new peer
654 * entry is newer than the one previously stored.
655 */
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800656 if (dev->last_seen.sec > 0 &&
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800657 os_reltime_before(rx_time, &dev->last_seen)) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700658 p2p_dbg(p2p, "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u)",
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800659 (unsigned int) rx_time->sec,
660 (unsigned int) rx_time->usec,
661 (unsigned int) dev->last_seen.sec,
662 (unsigned int) dev->last_seen.usec);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800663 p2p_parse_free(&msg);
664 return -1;
665 }
666
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800667 os_memcpy(&dev->last_seen, rx_time, sizeof(struct os_reltime));
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800668
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700669 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
670
671 if (os_memcmp(addr, p2p_dev_addr, ETH_ALEN) != 0)
672 os_memcpy(dev->interface_addr, addr, ETH_ALEN);
673 if (msg.ssid &&
674 (msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
675 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
676 != 0)) {
677 os_memcpy(dev->oper_ssid, msg.ssid + 2, msg.ssid[1]);
678 dev->oper_ssid_len = msg.ssid[1];
679 }
680
681 if (freq >= 2412 && freq <= 2484 && msg.ds_params &&
682 *msg.ds_params >= 1 && *msg.ds_params <= 14) {
683 int ds_freq;
684 if (*msg.ds_params == 14)
685 ds_freq = 2484;
686 else
687 ds_freq = 2407 + *msg.ds_params * 5;
688 if (freq != ds_freq) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700689 p2p_dbg(p2p, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700690 freq, ds_freq);
691 freq = ds_freq;
692 }
693 }
694
Dmitry Shmidt04949592012-07-19 12:16:46 -0700695 if (dev->listen_freq && dev->listen_freq != freq && scan_res) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700696 p2p_dbg(p2p, "Update Listen frequency based on scan results ("
697 MACSTR " %d -> %d MHz (DS param %d)",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700698 MAC2STR(dev->info.p2p_device_addr), dev->listen_freq,
699 freq, msg.ds_params ? *msg.ds_params : -1);
700 }
Dmitry Shmidt04949592012-07-19 12:16:46 -0700701 if (scan_res) {
702 dev->listen_freq = freq;
703 if (msg.group_info)
704 dev->oper_freq = freq;
705 }
Jouni Malinen75ecf522011-06-27 15:19:46 -0700706 dev->info.level = level;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700707
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700708 p2p_copy_wps_info(p2p, dev, 0, &msg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700709
710 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
711 wpabuf_free(dev->info.wps_vendor_ext[i]);
712 dev->info.wps_vendor_ext[i] = NULL;
713 }
714
715 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
716 if (msg.wps_vendor_ext[i] == NULL)
717 break;
718 dev->info.wps_vendor_ext[i] = wpabuf_alloc_copy(
719 msg.wps_vendor_ext[i], msg.wps_vendor_ext_len[i]);
720 if (dev->info.wps_vendor_ext[i] == NULL)
721 break;
722 }
723
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700724 if (msg.wfd_subelems) {
725 wpabuf_free(dev->info.wfd_subelems);
726 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
727 }
728
Dmitry Shmidt04949592012-07-19 12:16:46 -0700729 if (scan_res) {
730 p2p_add_group_clients(p2p, p2p_dev_addr, addr, freq,
731 msg.group_info, msg.group_info_len);
732 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700733
734 p2p_parse_free(&msg);
735
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700736 if (dev->flags & P2P_DEV_REPORTED)
737 return 0;
738
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700739 p2p_dbg(p2p, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
740 freq, (unsigned int) rx_time->sec,
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800741 (unsigned int) rx_time->usec);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700742 if (dev->flags & P2P_DEV_USER_REJECTED) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700743 p2p_dbg(p2p, "Do not report rejected device");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700744 return 0;
745 }
746
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800747 if (dev->info.config_methods == 0 &&
748 (freq == 2412 || freq == 2437 || freq == 2462)) {
749 /*
750 * If we have only seen a Beacon frame from a GO, we do not yet
751 * know what WPS config methods it supports. Since some
752 * applications use config_methods value from P2P-DEVICE-FOUND
753 * events, postpone reporting this peer until we've fully
754 * discovered its capabilities.
755 *
756 * At least for now, do this only if the peer was detected on
757 * one of the social channels since that peer can be easily be
758 * found again and there are no limitations of having to use
759 * passive scan on this channels, so this can be done through
760 * Probe Response frame that includes the config_methods
761 * information.
762 */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700763 p2p_dbg(p2p, "Do not report peer " MACSTR
764 " with unknown config methods", MAC2STR(addr));
Dmitry Shmidtf8623282013-02-20 14:34:59 -0800765 return 0;
766 }
767
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700768 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
769 !(dev->flags & P2P_DEV_REPORTED_ONCE));
770 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
771
772 return 0;
773}
774
775
776static void p2p_device_free(struct p2p_data *p2p, struct p2p_device *dev)
777{
778 int i;
779
Dmitry Shmidt497c1d52011-07-21 15:19:46 -0700780 if (p2p->go_neg_peer == dev) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800781 /*
782 * If GO Negotiation is in progress, report that it has failed.
783 */
Dmitry Shmidt497c1d52011-07-21 15:19:46 -0700784 p2p_go_neg_failed(p2p, dev, -1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700785 p2p->go_neg_peer = NULL;
Dmitry Shmidt497c1d52011-07-21 15:19:46 -0700786 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700787 if (p2p->invite_peer == dev)
788 p2p->invite_peer = NULL;
789 if (p2p->sd_peer == dev)
790 p2p->sd_peer = NULL;
791 if (p2p->pending_client_disc_go == dev)
792 p2p->pending_client_disc_go = NULL;
793
Dmitry Shmidtc55524a2011-07-07 11:18:38 -0700794 /* dev_lost() device, but only if it was previously dev_found() */
795 if (dev->flags & P2P_DEV_REPORTED_ONCE)
796 p2p->cfg->dev_lost(p2p->cfg->cb_ctx,
797 dev->info.p2p_device_addr);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700798
799 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
800 wpabuf_free(dev->info.wps_vendor_ext[i]);
801 dev->info.wps_vendor_ext[i] = NULL;
802 }
803
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700804 wpabuf_free(dev->info.wfd_subelems);
805
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700806 os_free(dev);
807}
808
809
810static int p2p_get_next_prog_freq(struct p2p_data *p2p)
811{
812 struct p2p_channels *c;
813 struct p2p_reg_class *cla;
814 size_t cl, ch;
815 int found = 0;
816 u8 reg_class;
817 u8 channel;
818 int freq;
819
820 c = &p2p->cfg->channels;
821 for (cl = 0; cl < c->reg_classes; cl++) {
822 cla = &c->reg_class[cl];
823 if (cla->reg_class != p2p->last_prog_scan_class)
824 continue;
825 for (ch = 0; ch < cla->channels; ch++) {
826 if (cla->channel[ch] == p2p->last_prog_scan_chan) {
827 found = 1;
828 break;
829 }
830 }
831 if (found)
832 break;
833 }
834
835 if (!found) {
836 /* Start from beginning */
837 reg_class = c->reg_class[0].reg_class;
838 channel = c->reg_class[0].channel[0];
839 } else {
840 /* Pick the next channel */
841 ch++;
842 if (ch == cla->channels) {
843 cl++;
844 if (cl == c->reg_classes)
845 cl = 0;
846 ch = 0;
847 }
848 reg_class = c->reg_class[cl].reg_class;
849 channel = c->reg_class[cl].channel[ch];
850 }
851
Dmitry Shmidt4b060592013-04-29 16:42:49 -0700852 freq = p2p_channel_to_freq(reg_class, channel);
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700853 p2p_dbg(p2p, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700854 reg_class, channel, freq);
855 p2p->last_prog_scan_class = reg_class;
856 p2p->last_prog_scan_chan = channel;
857
858 if (freq == 2412 || freq == 2437 || freq == 2462)
859 return 0; /* No need to add social channels */
860 return freq;
861}
862
863
864static void p2p_search(struct p2p_data *p2p)
865{
866 int freq = 0;
867 enum p2p_scan_type type;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700868 u16 pw_id = DEV_PW_DEFAULT;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700869 int res;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700870
871 if (p2p->drv_in_listen) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700872 p2p_dbg(p2p, "Driver is still in Listen state - wait for it to end before continuing");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700873 return;
874 }
875 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
876
Dmitry Shmidt04949592012-07-19 12:16:46 -0700877 if (p2p->find_type == P2P_FIND_PROGRESSIVE &&
878 (freq = p2p_get_next_prog_freq(p2p)) > 0) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700879 type = P2P_SCAN_SOCIAL_PLUS_ONE;
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700880 p2p_dbg(p2p, "Starting search (+ freq %u)", freq);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700881 } else {
882 type = P2P_SCAN_SOCIAL;
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700883 p2p_dbg(p2p, "Starting search");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700884 }
885
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700886 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, type, freq,
887 p2p->num_req_dev_types, p2p->req_dev_types,
888 p2p->find_dev_id, pw_id);
889 if (res < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700890 p2p_dbg(p2p, "Scan request failed");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700891 p2p_continue_find(p2p);
892 } else {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700893 p2p_dbg(p2p, "Running p2p_scan");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700894 p2p->p2p_scan_running = 1;
895 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
896 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
897 p2p, NULL);
898 }
899}
900
901
902static void p2p_find_timeout(void *eloop_ctx, void *timeout_ctx)
903{
904 struct p2p_data *p2p = eloop_ctx;
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700905 p2p_dbg(p2p, "Find timeout -> stop");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700906 p2p_stop_find(p2p);
907}
908
909
910static int p2p_run_after_scan(struct p2p_data *p2p)
911{
912 struct p2p_device *dev;
913 enum p2p_after_scan op;
914
915 if (p2p->after_scan_tx) {
Dmitry Shmidt8da800a2013-04-24 12:57:01 -0700916 p2p->after_scan_tx_in_progress = 1;
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700917 p2p_dbg(p2p, "Send pending Action frame at p2p_scan completion");
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800918 p2p->cfg->send_action(p2p->cfg->cb_ctx,
919 p2p->after_scan_tx->freq,
920 p2p->after_scan_tx->dst,
921 p2p->after_scan_tx->src,
922 p2p->after_scan_tx->bssid,
923 (u8 *) (p2p->after_scan_tx + 1),
924 p2p->after_scan_tx->len,
925 p2p->after_scan_tx->wait_time);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700926 os_free(p2p->after_scan_tx);
927 p2p->after_scan_tx = NULL;
928 return 1;
929 }
930
931 op = p2p->start_after_scan;
932 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
933 switch (op) {
934 case P2P_AFTER_SCAN_NOTHING:
935 break;
936 case P2P_AFTER_SCAN_LISTEN:
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700937 p2p_dbg(p2p, "Start previously requested Listen state");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700938 p2p_listen(p2p, p2p->pending_listen_sec * 1000 +
939 p2p->pending_listen_usec / 1000);
940 return 1;
941 case P2P_AFTER_SCAN_CONNECT:
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700942 p2p_dbg(p2p, "Start previously requested connect with " MACSTR,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700943 MAC2STR(p2p->after_scan_peer));
944 dev = p2p_get_device(p2p, p2p->after_scan_peer);
945 if (dev == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700946 p2p_dbg(p2p, "Peer not known anymore");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700947 break;
948 }
949 p2p_connect_send(p2p, dev);
950 return 1;
951 }
952
953 return 0;
954}
955
956
957static void p2p_scan_timeout(void *eloop_ctx, void *timeout_ctx)
958{
959 struct p2p_data *p2p = eloop_ctx;
960 int running;
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700961 p2p_dbg(p2p, "p2p_scan timeout (running=%d)", p2p->p2p_scan_running);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700962 running = p2p->p2p_scan_running;
963 /* Make sure we recover from missed scan results callback */
964 p2p->p2p_scan_running = 0;
965
966 if (running)
967 p2p_run_after_scan(p2p);
968}
969
970
971static void p2p_free_req_dev_types(struct p2p_data *p2p)
972{
973 p2p->num_req_dev_types = 0;
974 os_free(p2p->req_dev_types);
975 p2p->req_dev_types = NULL;
976}
977
978
979int p2p_find(struct p2p_data *p2p, unsigned int timeout,
980 enum p2p_discovery_type type,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800981 unsigned int num_req_dev_types, const u8 *req_dev_types,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700982 const u8 *dev_id, unsigned int search_delay)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700983{
984 int res;
985
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700986 p2p_dbg(p2p, "Starting find (type=%d)", type);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -0800987 os_get_reltime(&p2p->find_start);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700988 if (p2p->p2p_scan_running) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -0700989 p2p_dbg(p2p, "p2p_scan is already running");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700990 }
991
992 p2p_free_req_dev_types(p2p);
993 if (req_dev_types && num_req_dev_types) {
994 p2p->req_dev_types = os_malloc(num_req_dev_types *
995 WPS_DEV_TYPE_LEN);
996 if (p2p->req_dev_types == NULL)
997 return -1;
998 os_memcpy(p2p->req_dev_types, req_dev_types,
999 num_req_dev_types * WPS_DEV_TYPE_LEN);
1000 p2p->num_req_dev_types = num_req_dev_types;
1001 }
1002
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001003 if (dev_id) {
1004 os_memcpy(p2p->find_dev_id_buf, dev_id, ETH_ALEN);
1005 p2p->find_dev_id = p2p->find_dev_id_buf;
1006 } else
1007 p2p->find_dev_id = NULL;
1008
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001009 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1010 p2p_clear_timeout(p2p);
1011 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1012 p2p->find_type = type;
1013 p2p_device_clear_reported(p2p);
1014 p2p_set_state(p2p, P2P_SEARCH);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001015 p2p->search_delay = search_delay;
1016 p2p->in_search_delay = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001017 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001018 p2p->last_p2p_find_timeout = timeout;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001019 if (timeout)
1020 eloop_register_timeout(timeout, 0, p2p_find_timeout,
1021 p2p, NULL);
1022 switch (type) {
1023 case P2P_FIND_START_WITH_FULL:
1024 case P2P_FIND_PROGRESSIVE:
1025 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_FULL, 0,
1026 p2p->num_req_dev_types,
Dmitry Shmidt04949592012-07-19 12:16:46 -07001027 p2p->req_dev_types, dev_id,
1028 DEV_PW_DEFAULT);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001029 break;
1030 case P2P_FIND_ONLY_SOCIAL:
1031 res = p2p->cfg->p2p_scan(p2p->cfg->cb_ctx, P2P_SCAN_SOCIAL, 0,
1032 p2p->num_req_dev_types,
Dmitry Shmidt04949592012-07-19 12:16:46 -07001033 p2p->req_dev_types, dev_id,
1034 DEV_PW_DEFAULT);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001035 break;
1036 default:
1037 return -1;
1038 }
1039
1040 if (res == 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001041 p2p_dbg(p2p, "Running p2p_scan");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001042 p2p->p2p_scan_running = 1;
1043 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
1044 eloop_register_timeout(P2P_SCAN_TIMEOUT, 0, p2p_scan_timeout,
1045 p2p, NULL);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08001046 } else if (p2p->p2p_scan_running) {
1047 p2p_dbg(p2p, "Failed to start p2p_scan - another p2p_scan was already running");
1048 /* wait for the previous p2p_scan to complete */
Dmitry Shmidt96be6222014-02-13 10:16:51 -08001049 res = 0; /* do not report failure */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001050 } else {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001051 p2p_dbg(p2p, "Failed to start p2p_scan");
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001052 p2p_set_state(p2p, P2P_IDLE);
1053 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001054 }
1055
1056 return res;
1057}
1058
1059
1060void p2p_stop_find_for_freq(struct p2p_data *p2p, int freq)
1061{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001062 p2p_dbg(p2p, "Stopping find");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001063 eloop_cancel_timeout(p2p_find_timeout, p2p, NULL);
1064 p2p_clear_timeout(p2p);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08001065 if (p2p->state == P2P_SEARCH)
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001066 p2p->cfg->find_stopped(p2p->cfg->cb_ctx);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001067 p2p_set_state(p2p, P2P_IDLE);
1068 p2p_free_req_dev_types(p2p);
1069 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
Dmitry Shmidt8c652892013-03-01 10:14:01 -08001070 if (p2p->go_neg_peer)
1071 p2p->go_neg_peer->flags &= ~P2P_DEV_PEER_WAITING_RESPONSE;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001072 p2p->go_neg_peer = NULL;
1073 p2p->sd_peer = NULL;
1074 p2p->invite_peer = NULL;
Dmitry Shmidt04949592012-07-19 12:16:46 -07001075 p2p_stop_listen_for_freq(p2p, freq);
1076}
1077
1078
1079void p2p_stop_listen_for_freq(struct p2p_data *p2p, int freq)
1080{
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001081 if (freq > 0 && p2p->drv_in_listen == freq && p2p->in_listen) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001082 p2p_dbg(p2p, "Skip stop_listen since we are on correct channel for response");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001083 return;
1084 }
Dmitry Shmidt04949592012-07-19 12:16:46 -07001085 if (p2p->in_listen) {
1086 p2p->in_listen = 0;
1087 p2p_clear_timeout(p2p);
1088 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001089 if (p2p->drv_in_listen) {
1090 /*
1091 * The driver may not deliver callback to p2p_listen_end()
1092 * when the operation gets canceled, so clear the internal
1093 * variable that is tracking driver state.
1094 */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001095 p2p_dbg(p2p, "Clear drv_in_listen (%d)", p2p->drv_in_listen);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001096 p2p->drv_in_listen = 0;
1097 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001098 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1099}
1100
1101
Dmitry Shmidt391c59f2013-09-03 12:16:28 -07001102void p2p_stop_listen(struct p2p_data *p2p)
1103{
1104 if (p2p->state != P2P_LISTEN_ONLY) {
1105 p2p_dbg(p2p, "Skip stop_listen since not in listen_only state.");
1106 return;
1107 }
1108
1109 p2p_stop_listen_for_freq(p2p, 0);
1110 p2p_set_state(p2p, P2P_IDLE);
1111}
1112
1113
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001114void p2p_stop_find(struct p2p_data *p2p)
1115{
1116 p2p_stop_find_for_freq(p2p, 0);
1117}
1118
1119
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001120static int p2p_prepare_channel_pref(struct p2p_data *p2p,
1121 unsigned int force_freq,
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001122 unsigned int pref_freq, int go)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001123{
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001124 u8 op_class, op_channel;
1125 unsigned int freq = force_freq ? force_freq : pref_freq;
1126
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001127 p2p_dbg(p2p, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1128 force_freq, pref_freq, go);
Dmitry Shmidt4b060592013-04-29 16:42:49 -07001129 if (p2p_freq_to_channel(freq, &op_class, &op_channel) < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001130 p2p_dbg(p2p, "Unsupported frequency %u MHz", freq);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001131 return -1;
1132 }
1133
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001134 if (!p2p_channels_includes(&p2p->cfg->channels, op_class, op_channel) &&
1135 (go || !p2p_channels_includes(&p2p->cfg->cli_channels, op_class,
1136 op_channel))) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001137 p2p_dbg(p2p, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1138 freq, op_class, op_channel);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001139 return -1;
1140 }
1141
1142 p2p->op_reg_class = op_class;
1143 p2p->op_channel = op_channel;
1144
1145 if (force_freq) {
1146 p2p->channels.reg_classes = 1;
1147 p2p->channels.reg_class[0].channels = 1;
1148 p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
1149 p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001150 } else {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001151 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1152 sizeof(struct p2p_channels));
1153 }
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001154
1155 return 0;
1156}
1157
1158
1159static void p2p_prepare_channel_best(struct p2p_data *p2p)
1160{
1161 u8 op_class, op_channel;
Dmitry Shmidta0d265f2013-11-19 13:13:41 -08001162 const int op_classes_5ghz[] = { 124, 115, 0 };
1163 const int op_classes_ht40[] = { 126, 127, 116, 117, 0 };
Dmitry Shmidte0e48dc2013-11-18 12:00:06 -08001164 const int op_classes_vht[] = { 128, 0 };
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001165
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -07001166 p2p_dbg(p2p, "Prepare channel best");
1167
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001168 if (!p2p->cfg->cfg_op_channel && p2p->best_freq_overall > 0 &&
1169 p2p_supported_freq(p2p, p2p->best_freq_overall) &&
Dmitry Shmidt4b060592013-04-29 16:42:49 -07001170 p2p_freq_to_channel(p2p->best_freq_overall, &op_class, &op_channel)
1171 == 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001172 p2p_dbg(p2p, "Select best overall channel as operating channel preference");
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001173 p2p->op_reg_class = op_class;
1174 p2p->op_channel = op_channel;
1175 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_5 > 0 &&
1176 p2p_supported_freq(p2p, p2p->best_freq_5) &&
Dmitry Shmidt4b060592013-04-29 16:42:49 -07001177 p2p_freq_to_channel(p2p->best_freq_5, &op_class, &op_channel)
1178 == 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001179 p2p_dbg(p2p, "Select best 5 GHz channel as operating channel preference");
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001180 p2p->op_reg_class = op_class;
1181 p2p->op_channel = op_channel;
1182 } else if (!p2p->cfg->cfg_op_channel && p2p->best_freq_24 > 0 &&
1183 p2p_supported_freq(p2p, p2p->best_freq_24) &&
Dmitry Shmidt4b060592013-04-29 16:42:49 -07001184 p2p_freq_to_channel(p2p->best_freq_24, &op_class,
1185 &op_channel) == 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001186 p2p_dbg(p2p, "Select best 2.4 GHz channel as operating channel preference");
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001187 p2p->op_reg_class = op_class;
1188 p2p->op_channel = op_channel;
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -07001189 } else if (p2p->cfg->num_pref_chan > 0 &&
1190 p2p_channels_includes(&p2p->cfg->channels,
1191 p2p->cfg->pref_chan[0].op_class,
1192 p2p->cfg->pref_chan[0].chan)) {
1193 p2p_dbg(p2p, "Select first pref_chan entry as operating channel preference");
1194 p2p->op_reg_class = p2p->cfg->pref_chan[0].op_class;
1195 p2p->op_channel = p2p->cfg->pref_chan[0].chan;
Dmitry Shmidte0e48dc2013-11-18 12:00:06 -08001196 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_vht,
1197 &p2p->op_reg_class, &p2p->op_channel) ==
1198 0) {
1199 p2p_dbg(p2p, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1200 p2p->op_reg_class, p2p->op_channel);
1201 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_ht40,
1202 &p2p->op_reg_class, &p2p->op_channel) ==
1203 0) {
1204 p2p_dbg(p2p, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1205 p2p->op_reg_class, p2p->op_channel);
1206 } else if (p2p_channel_select(&p2p->cfg->channels, op_classes_5ghz,
1207 &p2p->op_reg_class, &p2p->op_channel) ==
1208 0) {
1209 p2p_dbg(p2p, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1210 p2p->op_reg_class, p2p->op_channel);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001211 } else {
Dmitry Shmidtb7b4d0e2013-08-26 12:09:05 -07001212 p2p_dbg(p2p, "Select pre-configured channel as operating channel preference");
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001213 p2p->op_reg_class = p2p->cfg->op_reg_class;
1214 p2p->op_channel = p2p->cfg->op_channel;
1215 }
1216
1217 os_memcpy(&p2p->channels, &p2p->cfg->channels,
1218 sizeof(struct p2p_channels));
1219}
1220
1221
1222/**
1223 * p2p_prepare_channel - Select operating channel for GO Negotiation
1224 * @p2p: P2P module context from p2p_init()
1225 * @dev: Selected peer device
1226 * @force_freq: Forced frequency in MHz or 0 if not forced
1227 * @pref_freq: Preferred frequency in MHz or 0 if no preference
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001228 * @go: Whether the local end will be forced to be GO
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001229 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1230 *
1231 * This function is used to do initial operating channel selection for GO
1232 * Negotiation prior to having received peer information. The selected channel
1233 * may be further optimized in p2p_reselect_channel() once the peer information
1234 * is available.
1235 */
Dmitry Shmidt7a5e50a2013-03-05 12:37:16 -08001236int p2p_prepare_channel(struct p2p_data *p2p, struct p2p_device *dev,
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001237 unsigned int force_freq, unsigned int pref_freq, int go)
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001238{
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001239 p2p_dbg(p2p, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1240 force_freq, pref_freq, go);
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001241 if (force_freq || pref_freq) {
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001242 if (p2p_prepare_channel_pref(p2p, force_freq, pref_freq, go) <
1243 0)
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001244 return -1;
1245 } else {
1246 p2p_prepare_channel_best(p2p);
1247 }
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001248 p2p_channels_dump(p2p, "prepared channels", &p2p->channels);
1249 if (go)
1250 p2p_channels_remove_freqs(&p2p->channels, &p2p->no_go_freq);
1251 else if (!force_freq)
1252 p2p_channels_union(&p2p->channels, &p2p->cfg->cli_channels,
1253 &p2p->channels);
1254 p2p_channels_dump(p2p, "after go/cli filter/add", &p2p->channels);
1255
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001256 p2p_dbg(p2p, "Own preference for operation channel: Operating Class %u Channel %u%s",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001257 p2p->op_reg_class, p2p->op_channel,
1258 force_freq ? " (forced)" : "");
1259
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001260 if (force_freq)
1261 dev->flags |= P2P_DEV_FORCE_FREQ;
1262 else
1263 dev->flags &= ~P2P_DEV_FORCE_FREQ;
1264
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001265 return 0;
1266}
1267
1268
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001269static void p2p_set_dev_persistent(struct p2p_device *dev,
1270 int persistent_group)
1271{
1272 switch (persistent_group) {
1273 case 0:
1274 dev->flags &= ~(P2P_DEV_PREFER_PERSISTENT_GROUP |
1275 P2P_DEV_PREFER_PERSISTENT_RECONN);
1276 break;
1277 case 1:
1278 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP;
1279 dev->flags &= ~P2P_DEV_PREFER_PERSISTENT_RECONN;
1280 break;
1281 case 2:
1282 dev->flags |= P2P_DEV_PREFER_PERSISTENT_GROUP |
1283 P2P_DEV_PREFER_PERSISTENT_RECONN;
1284 break;
1285 }
1286}
1287
1288
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001289int p2p_connect(struct p2p_data *p2p, const u8 *peer_addr,
1290 enum p2p_wps_method wps_method,
1291 int go_intent, const u8 *own_interface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07001292 unsigned int force_freq, int persistent_group,
1293 const u8 *force_ssid, size_t force_ssid_len,
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001294 int pd_before_go_neg, unsigned int pref_freq, u16 oob_pw_id)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001295{
1296 struct p2p_device *dev;
1297
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001298 p2p_dbg(p2p, "Request to start group negotiation - peer=" MACSTR
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001299 " GO Intent=%d Intended Interface Address=" MACSTR
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001300 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1301 "oob_pw_id=%u",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001302 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001303 wps_method, persistent_group, pd_before_go_neg, oob_pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001304
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001305 dev = p2p_get_device(p2p, peer_addr);
1306 if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001307 p2p_dbg(p2p, "Cannot connect to unknown P2P Device " MACSTR,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001308 MAC2STR(peer_addr));
1309 return -1;
1310 }
1311
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001312 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq,
1313 go_intent == 15) < 0)
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001314 return -1;
1315
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001316 if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
1317 if (!(dev->info.dev_capab &
1318 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001319 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001320 " that is in a group and is not discoverable",
1321 MAC2STR(peer_addr));
1322 return -1;
1323 }
1324 if (dev->oper_freq <= 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001325 p2p_dbg(p2p, "Cannot connect to P2P Device " MACSTR
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001326 " with incomplete information",
1327 MAC2STR(peer_addr));
1328 return -1;
1329 }
1330
1331 /*
1332 * First, try to connect directly. If the peer does not
1333 * acknowledge frames, assume it is sleeping and use device
1334 * discoverability via the GO at that point.
1335 */
1336 }
1337
Dmitry Shmidt04949592012-07-19 12:16:46 -07001338 p2p->ssid_set = 0;
1339 if (force_ssid) {
1340 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1341 force_ssid, force_ssid_len);
1342 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1343 p2p->ssid_len = force_ssid_len;
1344 p2p->ssid_set = 1;
1345 }
1346
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001347 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1348 dev->flags &= ~P2P_DEV_USER_REJECTED;
1349 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
1350 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
Dmitry Shmidt04949592012-07-19 12:16:46 -07001351 if (pd_before_go_neg)
1352 dev->flags |= P2P_DEV_PD_BEFORE_GO_NEG;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001353 else {
Dmitry Shmidt04949592012-07-19 12:16:46 -07001354 dev->flags &= ~P2P_DEV_PD_BEFORE_GO_NEG;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001355 /*
Dmitry Shmidt9cdf1b92013-02-27 12:58:50 -08001356 * Assign dialog token and tie breaker here to use the same
1357 * values in each retry within the same GO Negotiation exchange.
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001358 */
1359 dev->dialog_token++;
1360 if (dev->dialog_token == 0)
1361 dev->dialog_token = 1;
Dmitry Shmidt9cdf1b92013-02-27 12:58:50 -08001362 dev->tie_breaker = p2p->next_tie_breaker;
1363 p2p->next_tie_breaker = !p2p->next_tie_breaker;
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001364 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001365 dev->connect_reqs = 0;
1366 dev->go_neg_req_sent = 0;
1367 dev->go_state = UNKNOWN_GO;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001368 p2p_set_dev_persistent(dev, persistent_group);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001369 p2p->go_intent = go_intent;
1370 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1371
1372 if (p2p->state != P2P_IDLE)
1373 p2p_stop_find(p2p);
1374
1375 if (p2p->after_scan_tx) {
1376 /*
1377 * We need to drop the pending frame to avoid issues with the
1378 * new GO Negotiation, e.g., when the pending frame was from a
1379 * previous attempt at starting a GO Negotiation.
1380 */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001381 p2p_dbg(p2p, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001382 os_free(p2p->after_scan_tx);
1383 p2p->after_scan_tx = NULL;
1384 }
1385
1386 dev->wps_method = wps_method;
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001387 dev->oob_pw_id = oob_pw_id;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001388 dev->status = P2P_SC_SUCCESS;
1389
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001390 if (p2p->p2p_scan_running) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001391 p2p_dbg(p2p, "p2p_scan running - delay connect send");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001392 p2p->start_after_scan = P2P_AFTER_SCAN_CONNECT;
1393 os_memcpy(p2p->after_scan_peer, peer_addr, ETH_ALEN);
1394 return 0;
1395 }
1396 p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
1397
1398 return p2p_connect_send(p2p, dev);
1399}
1400
1401
1402int p2p_authorize(struct p2p_data *p2p, const u8 *peer_addr,
1403 enum p2p_wps_method wps_method,
1404 int go_intent, const u8 *own_interface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07001405 unsigned int force_freq, int persistent_group,
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001406 const u8 *force_ssid, size_t force_ssid_len,
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001407 unsigned int pref_freq, u16 oob_pw_id)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001408{
1409 struct p2p_device *dev;
1410
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001411 p2p_dbg(p2p, "Request to authorize group negotiation - peer=" MACSTR
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001412 " GO Intent=%d Intended Interface Address=" MACSTR
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001413 " wps_method=%d persistent_group=%d oob_pw_id=%u",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001414 MAC2STR(peer_addr), go_intent, MAC2STR(own_interface_addr),
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001415 wps_method, persistent_group, oob_pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001416
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001417 dev = p2p_get_device(p2p, peer_addr);
1418 if (dev == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001419 p2p_dbg(p2p, "Cannot authorize unknown P2P Device " MACSTR,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001420 MAC2STR(peer_addr));
1421 return -1;
1422 }
1423
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001424 if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq, go_intent ==
1425 15) < 0)
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08001426 return -1;
1427
Dmitry Shmidt04949592012-07-19 12:16:46 -07001428 p2p->ssid_set = 0;
1429 if (force_ssid) {
1430 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Forced SSID",
1431 force_ssid, force_ssid_len);
1432 os_memcpy(p2p->ssid, force_ssid, force_ssid_len);
1433 p2p->ssid_len = force_ssid_len;
1434 p2p->ssid_set = 1;
1435 }
1436
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001437 dev->flags &= ~P2P_DEV_NOT_YET_READY;
1438 dev->flags &= ~P2P_DEV_USER_REJECTED;
1439 dev->go_neg_req_sent = 0;
1440 dev->go_state = UNKNOWN_GO;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001441 p2p_set_dev_persistent(dev, persistent_group);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001442 p2p->go_intent = go_intent;
1443 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
1444
1445 dev->wps_method = wps_method;
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001446 dev->oob_pw_id = oob_pw_id;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001447 dev->status = P2P_SC_SUCCESS;
1448
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001449 return 0;
1450}
1451
1452
1453void p2p_add_dev_info(struct p2p_data *p2p, const u8 *addr,
1454 struct p2p_device *dev, struct p2p_message *msg)
1455{
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08001456 os_get_reltime(&dev->last_seen);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001457
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001458 p2p_copy_wps_info(p2p, dev, 0, msg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001459
1460 if (msg->listen_channel) {
1461 int freq;
Dmitry Shmidt4b060592013-04-29 16:42:49 -07001462 freq = p2p_channel_to_freq(msg->listen_channel[3],
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001463 msg->listen_channel[4]);
1464 if (freq < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001465 p2p_dbg(p2p, "Unknown peer Listen channel: "
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001466 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1467 msg->listen_channel[0],
1468 msg->listen_channel[1],
1469 msg->listen_channel[2],
1470 msg->listen_channel[3],
1471 msg->listen_channel[4]);
1472 } else {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001473 p2p_dbg(p2p, "Update peer " MACSTR
1474 " Listen channel: %u -> %u MHz",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001475 MAC2STR(dev->info.p2p_device_addr),
1476 dev->listen_freq, freq);
1477 dev->listen_freq = freq;
1478 }
1479 }
1480
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001481 if (msg->wfd_subelems) {
1482 wpabuf_free(dev->info.wfd_subelems);
1483 dev->info.wfd_subelems = wpabuf_dup(msg->wfd_subelems);
1484 }
1485
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001486 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
1487 dev->flags &= ~P2P_DEV_PROBE_REQ_ONLY;
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001488 p2p_dbg(p2p, "Completed device entry based on data from GO Negotiation Request");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001489 } else {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001490 p2p_dbg(p2p, "Created device entry based on GO Neg Req: "
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001491 MACSTR " dev_capab=0x%x group_capab=0x%x name='%s' "
1492 "listen_freq=%d",
1493 MAC2STR(dev->info.p2p_device_addr),
1494 dev->info.dev_capab, dev->info.group_capab,
1495 dev->info.device_name, dev->listen_freq);
1496 }
1497
1498 dev->flags &= ~P2P_DEV_GROUP_CLIENT_ONLY;
1499
1500 if (dev->flags & P2P_DEV_USER_REJECTED) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001501 p2p_dbg(p2p, "Do not report rejected device");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001502 return;
1503 }
1504
1505 p2p->cfg->dev_found(p2p->cfg->cb_ctx, addr, &dev->info,
1506 !(dev->flags & P2P_DEV_REPORTED_ONCE));
1507 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
1508}
1509
1510
1511void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len)
1512{
1513 os_memcpy(ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
1514 p2p_random((char *) &ssid[P2P_WILDCARD_SSID_LEN], 2);
1515 os_memcpy(&ssid[P2P_WILDCARD_SSID_LEN + 2],
1516 p2p->cfg->ssid_postfix, p2p->cfg->ssid_postfix_len);
1517 *ssid_len = P2P_WILDCARD_SSID_LEN + 2 + p2p->cfg->ssid_postfix_len;
1518}
1519
1520
1521int p2p_go_params(struct p2p_data *p2p, struct p2p_go_neg_results *params)
1522{
1523 p2p_build_ssid(p2p, params->ssid, &params->ssid_len);
1524 p2p_random(params->passphrase, 8);
1525 return 0;
1526}
1527
1528
1529void p2p_go_complete(struct p2p_data *p2p, struct p2p_device *peer)
1530{
1531 struct p2p_go_neg_results res;
1532 int go = peer->go_state == LOCAL_GO;
1533 struct p2p_channels intersection;
1534 int freqs;
1535 size_t i, j;
1536
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001537 p2p_dbg(p2p, "GO Negotiation with " MACSTR " completed (%s will be GO)",
1538 MAC2STR(peer->info.p2p_device_addr), go ? "local end" : "peer");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001539
1540 os_memset(&res, 0, sizeof(res));
1541 res.role_go = go;
1542 os_memcpy(res.peer_device_addr, peer->info.p2p_device_addr, ETH_ALEN);
1543 os_memcpy(res.peer_interface_addr, peer->intended_addr, ETH_ALEN);
1544 res.wps_method = peer->wps_method;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001545 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_GROUP) {
1546 if (peer->flags & P2P_DEV_PREFER_PERSISTENT_RECONN)
1547 res.persistent_group = 2;
1548 else
1549 res.persistent_group = 1;
1550 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001551
1552 if (go) {
1553 /* Setup AP mode for WPS provisioning */
Dmitry Shmidt4b060592013-04-29 16:42:49 -07001554 res.freq = p2p_channel_to_freq(p2p->op_reg_class,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001555 p2p->op_channel);
1556 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1557 res.ssid_len = p2p->ssid_len;
1558 p2p_random(res.passphrase, 8);
1559 } else {
1560 res.freq = peer->oper_freq;
1561 if (p2p->ssid_len) {
1562 os_memcpy(res.ssid, p2p->ssid, p2p->ssid_len);
1563 res.ssid_len = p2p->ssid_len;
1564 }
1565 }
1566
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001567 p2p_channels_dump(p2p, "own channels", &p2p->channels);
1568 p2p_channels_dump(p2p, "peer channels", &peer->channels);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001569 p2p_channels_intersect(&p2p->channels, &peer->channels,
1570 &intersection);
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001571 if (go) {
1572 p2p_channels_remove_freqs(&intersection, &p2p->no_go_freq);
1573 p2p_channels_dump(p2p, "intersection after no-GO removal",
1574 &intersection);
1575 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001576 freqs = 0;
1577 for (i = 0; i < intersection.reg_classes; i++) {
1578 struct p2p_reg_class *c = &intersection.reg_class[i];
1579 if (freqs + 1 == P2P_MAX_CHANNELS)
1580 break;
1581 for (j = 0; j < c->channels; j++) {
1582 int freq;
1583 if (freqs + 1 == P2P_MAX_CHANNELS)
1584 break;
Dmitry Shmidt4b060592013-04-29 16:42:49 -07001585 freq = p2p_channel_to_freq(c->reg_class, c->channel[j]);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001586 if (freq < 0)
1587 continue;
1588 res.freq_list[freqs++] = freq;
1589 }
1590 }
1591
1592 res.peer_config_timeout = go ? peer->client_timeout : peer->go_timeout;
1593
1594 p2p_clear_timeout(p2p);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001595 p2p->ssid_set = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001596 peer->go_neg_req_sent = 0;
1597 peer->wps_method = WPS_NOT_READY;
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001598 peer->oob_pw_id = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001599
1600 p2p_set_state(p2p, P2P_PROVISIONING);
1601 p2p->cfg->go_neg_completed(p2p->cfg->cb_ctx, &res);
1602}
1603
1604
1605static void p2p_rx_p2p_action(struct p2p_data *p2p, const u8 *sa,
1606 const u8 *data, size_t len, int rx_freq)
1607{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001608 p2p_dbg(p2p, "RX P2P Public Action from " MACSTR, MAC2STR(sa));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001609 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Public Action contents", data, len);
1610
1611 if (len < 1)
1612 return;
1613
1614 switch (data[0]) {
1615 case P2P_GO_NEG_REQ:
1616 p2p_process_go_neg_req(p2p, sa, data + 1, len - 1, rx_freq);
1617 break;
1618 case P2P_GO_NEG_RESP:
1619 p2p_process_go_neg_resp(p2p, sa, data + 1, len - 1, rx_freq);
1620 break;
1621 case P2P_GO_NEG_CONF:
1622 p2p_process_go_neg_conf(p2p, sa, data + 1, len - 1);
1623 break;
1624 case P2P_INVITATION_REQ:
1625 p2p_process_invitation_req(p2p, sa, data + 1, len - 1,
1626 rx_freq);
1627 break;
1628 case P2P_INVITATION_RESP:
Dmitry Shmidt051af732013-10-22 13:52:46 -07001629 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001630 p2p_process_invitation_resp(p2p, sa, data + 1, len - 1);
1631 break;
1632 case P2P_PROV_DISC_REQ:
1633 p2p_process_prov_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1634 break;
1635 case P2P_PROV_DISC_RESP:
1636 p2p_process_prov_disc_resp(p2p, sa, data + 1, len - 1);
1637 break;
1638 case P2P_DEV_DISC_REQ:
1639 p2p_process_dev_disc_req(p2p, sa, data + 1, len - 1, rx_freq);
1640 break;
1641 case P2P_DEV_DISC_RESP:
1642 p2p_process_dev_disc_resp(p2p, sa, data + 1, len - 1);
1643 break;
1644 default:
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001645 p2p_dbg(p2p, "Unsupported P2P Public Action frame type %d",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001646 data[0]);
1647 break;
1648 }
1649}
1650
1651
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001652static void p2p_rx_action_public(struct p2p_data *p2p, const u8 *da,
1653 const u8 *sa, const u8 *bssid, const u8 *data,
1654 size_t len, int freq)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001655{
1656 if (len < 1)
1657 return;
1658
1659 switch (data[0]) {
1660 case WLAN_PA_VENDOR_SPECIFIC:
1661 data++;
1662 len--;
Dmitry Shmidta38abf92014-03-06 13:38:44 -08001663 if (len < 4)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001664 return;
Dmitry Shmidta38abf92014-03-06 13:38:44 -08001665 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001666 return;
1667
Dmitry Shmidta38abf92014-03-06 13:38:44 -08001668 data += 4;
1669 len -= 4;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001670
Dmitry Shmidta38abf92014-03-06 13:38:44 -08001671 p2p_rx_p2p_action(p2p, sa, data, len, freq);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001672 break;
1673 case WLAN_PA_GAS_INITIAL_REQ:
1674 p2p_rx_gas_initial_req(p2p, sa, data + 1, len - 1, freq);
1675 break;
1676 case WLAN_PA_GAS_INITIAL_RESP:
1677 p2p_rx_gas_initial_resp(p2p, sa, data + 1, len - 1, freq);
1678 break;
1679 case WLAN_PA_GAS_COMEBACK_REQ:
1680 p2p_rx_gas_comeback_req(p2p, sa, data + 1, len - 1, freq);
1681 break;
1682 case WLAN_PA_GAS_COMEBACK_RESP:
1683 p2p_rx_gas_comeback_resp(p2p, sa, data + 1, len - 1, freq);
1684 break;
1685 }
1686}
1687
1688
1689void p2p_rx_action(struct p2p_data *p2p, const u8 *da, const u8 *sa,
1690 const u8 *bssid, u8 category,
1691 const u8 *data, size_t len, int freq)
1692{
1693 if (category == WLAN_ACTION_PUBLIC) {
1694 p2p_rx_action_public(p2p, da, sa, bssid, data, len, freq);
1695 return;
1696 }
1697
1698 if (category != WLAN_ACTION_VENDOR_SPECIFIC)
1699 return;
1700
1701 if (len < 4)
1702 return;
1703
Dmitry Shmidta38abf92014-03-06 13:38:44 -08001704 if (WPA_GET_BE32(data) != P2P_IE_VENDOR_TYPE)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001705 return;
Dmitry Shmidta38abf92014-03-06 13:38:44 -08001706 data += 4;
1707 len -= 4;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001708
1709 /* P2P action frame */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001710 p2p_dbg(p2p, "RX P2P Action from " MACSTR, MAC2STR(sa));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001711 wpa_hexdump(MSG_MSGDUMP, "P2P: P2P Action contents", data, len);
1712
1713 if (len < 1)
1714 return;
1715 switch (data[0]) {
1716 case P2P_NOA:
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001717 p2p_dbg(p2p, "Received P2P Action - Notice of Absence");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001718 /* TODO */
1719 break;
1720 case P2P_PRESENCE_REQ:
1721 p2p_process_presence_req(p2p, da, sa, data + 1, len - 1, freq);
1722 break;
1723 case P2P_PRESENCE_RESP:
1724 p2p_process_presence_resp(p2p, da, sa, data + 1, len - 1);
1725 break;
1726 case P2P_GO_DISC_REQ:
1727 p2p_process_go_disc_req(p2p, da, sa, data + 1, len - 1, freq);
1728 break;
1729 default:
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001730 p2p_dbg(p2p, "Received P2P Action - unknown type %u", data[0]);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001731 break;
1732 }
1733}
1734
1735
1736static void p2p_go_neg_start(void *eloop_ctx, void *timeout_ctx)
1737{
1738 struct p2p_data *p2p = eloop_ctx;
1739 if (p2p->go_neg_peer == NULL)
1740 return;
1741 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
1742 p2p->go_neg_peer->status = P2P_SC_SUCCESS;
1743 p2p_connect_send(p2p, p2p->go_neg_peer);
1744}
1745
1746
1747static void p2p_invite_start(void *eloop_ctx, void *timeout_ctx)
1748{
1749 struct p2p_data *p2p = eloop_ctx;
1750 if (p2p->invite_peer == NULL)
1751 return;
1752 p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08001753 p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr,
1754 p2p->invite_dev_pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001755}
1756
1757
1758static void p2p_add_dev_from_probe_req(struct p2p_data *p2p, const u8 *addr,
1759 const u8 *ie, size_t ie_len)
1760{
1761 struct p2p_message msg;
1762 struct p2p_device *dev;
1763
1764 os_memset(&msg, 0, sizeof(msg));
1765 if (p2p_parse_ies(ie, ie_len, &msg) < 0 || msg.p2p_attributes == NULL)
1766 {
1767 p2p_parse_free(&msg);
1768 return; /* not a P2P probe */
1769 }
1770
1771 if (msg.ssid == NULL || msg.ssid[1] != P2P_WILDCARD_SSID_LEN ||
1772 os_memcmp(msg.ssid + 2, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN)
1773 != 0) {
1774 /* The Probe Request is not part of P2P Device Discovery. It is
1775 * not known whether the source address of the frame is the P2P
1776 * Device Address or P2P Interface Address. Do not add a new
1777 * peer entry based on this frames.
1778 */
1779 p2p_parse_free(&msg);
1780 return;
1781 }
1782
1783 dev = p2p_get_device(p2p, addr);
1784 if (dev) {
1785 if (dev->country[0] == 0 && msg.listen_channel)
1786 os_memcpy(dev->country, msg.listen_channel, 3);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08001787 os_get_reltime(&dev->last_seen);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001788 p2p_parse_free(&msg);
1789 return; /* already known */
1790 }
1791
1792 dev = p2p_create_device(p2p, addr);
1793 if (dev == NULL) {
1794 p2p_parse_free(&msg);
1795 return;
1796 }
1797
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08001798 os_get_reltime(&dev->last_seen);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001799 dev->flags |= P2P_DEV_PROBE_REQ_ONLY;
1800
1801 if (msg.listen_channel) {
1802 os_memcpy(dev->country, msg.listen_channel, 3);
Dmitry Shmidt4b060592013-04-29 16:42:49 -07001803 dev->listen_freq = p2p_channel_to_freq(msg.listen_channel[3],
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001804 msg.listen_channel[4]);
1805 }
1806
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001807 p2p_copy_wps_info(p2p, dev, 1, &msg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001808
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001809 if (msg.wfd_subelems) {
1810 wpabuf_free(dev->info.wfd_subelems);
1811 dev->info.wfd_subelems = wpabuf_dup(msg.wfd_subelems);
1812 }
1813
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001814 p2p_parse_free(&msg);
1815
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07001816 p2p_dbg(p2p, "Created device entry based on Probe Req: " MACSTR
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001817 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
1818 MAC2STR(dev->info.p2p_device_addr), dev->info.dev_capab,
1819 dev->info.group_capab, dev->info.device_name,
1820 dev->listen_freq);
1821}
1822
1823
1824struct p2p_device * p2p_add_dev_from_go_neg_req(struct p2p_data *p2p,
1825 const u8 *addr,
1826 struct p2p_message *msg)
1827{
1828 struct p2p_device *dev;
1829
1830 dev = p2p_get_device(p2p, addr);
1831 if (dev) {
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08001832 os_get_reltime(&dev->last_seen);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001833 return dev; /* already known */
1834 }
1835
1836 dev = p2p_create_device(p2p, addr);
1837 if (dev == NULL)
1838 return NULL;
1839
1840 p2p_add_dev_info(p2p, addr, dev, msg);
1841
1842 return dev;
1843}
1844
1845
1846static int dev_type_match(const u8 *dev_type, const u8 *req_dev_type)
1847{
1848 if (os_memcmp(dev_type, req_dev_type, WPS_DEV_TYPE_LEN) == 0)
1849 return 1;
1850 if (os_memcmp(dev_type, req_dev_type, 2) == 0 &&
1851 WPA_GET_BE32(&req_dev_type[2]) == 0 &&
1852 WPA_GET_BE16(&req_dev_type[6]) == 0)
1853 return 1; /* Category match with wildcard OUI/sub-category */
1854 return 0;
1855}
1856
1857
1858int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
1859 size_t num_req_dev_type)
1860{
1861 size_t i;
1862 for (i = 0; i < num_req_dev_type; i++) {
1863 if (dev_type_match(dev_type, req_dev_type[i]))
1864 return 1;
1865 }
1866 return 0;
1867}
1868
1869
1870/**
1871 * p2p_match_dev_type - Match local device type with requested type
1872 * @p2p: P2P module context from p2p_init()
1873 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
1874 * Returns: 1 on match, 0 on mismatch
1875 *
1876 * This function can be used to match the Requested Device Type attribute in
1877 * WPS IE with the local device types for deciding whether to reply to a Probe
1878 * Request frame.
1879 */
1880int p2p_match_dev_type(struct p2p_data *p2p, struct wpabuf *wps)
1881{
1882 struct wps_parse_attr attr;
1883 size_t i;
1884
1885 if (wps_parse_msg(wps, &attr))
1886 return 1; /* assume no Requested Device Type attributes */
1887
1888 if (attr.num_req_dev_type == 0)
1889 return 1; /* no Requested Device Type attributes -> match */
1890
1891 if (dev_type_list_match(p2p->cfg->pri_dev_type, attr.req_dev_type,
1892 attr.num_req_dev_type))
1893 return 1; /* Own Primary Device Type matches */
1894
1895 for (i = 0; i < p2p->cfg->num_sec_dev_types; i++)
1896 if (dev_type_list_match(p2p->cfg->sec_dev_type[i],
1897 attr.req_dev_type,
1898 attr.num_req_dev_type))
1899 return 1; /* Own Secondary Device Type matches */
1900
1901 /* No matching device type found */
1902 return 0;
1903}
1904
1905
1906struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p)
1907{
1908 struct wpabuf *buf;
1909 u8 *len;
Dmitry Shmidt04949592012-07-19 12:16:46 -07001910 int pw_id = -1;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001911 size_t extra = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001912
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001913#ifdef CONFIG_WIFI_DISPLAY
1914 if (p2p->wfd_ie_probe_resp)
1915 extra = wpabuf_len(p2p->wfd_ie_probe_resp);
1916#endif /* CONFIG_WIFI_DISPLAY */
1917
1918 buf = wpabuf_alloc(1000 + extra);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001919 if (buf == NULL)
1920 return NULL;
1921
Dmitry Shmidt04949592012-07-19 12:16:46 -07001922 if (p2p->go_neg_peer) {
1923 /* Advertise immediate availability of WPS credential */
1924 pw_id = p2p_wps_method_pw_id(p2p->go_neg_peer->wps_method);
1925 }
1926
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07001927 if (p2p_build_wps_ie(p2p, buf, pw_id, 1) < 0) {
1928 p2p_dbg(p2p, "Failed to build WPS IE for Probe Response");
1929 wpabuf_free(buf);
1930 return NULL;
1931 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001932
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001933#ifdef CONFIG_WIFI_DISPLAY
1934 if (p2p->wfd_ie_probe_resp)
1935 wpabuf_put_buf(buf, p2p->wfd_ie_probe_resp);
1936#endif /* CONFIG_WIFI_DISPLAY */
1937
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001938 /* P2P IE */
1939 len = p2p_buf_add_ie_hdr(buf);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001940 p2p_buf_add_capability(buf, p2p->dev_capab &
1941 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001942 if (p2p->ext_listen_interval)
1943 p2p_buf_add_ext_listen_timing(buf, p2p->ext_listen_period,
1944 p2p->ext_listen_interval);
1945 p2p_buf_add_device_info(buf, p2p, NULL);
1946 p2p_buf_update_ie_hdr(buf, len);
1947
1948 return buf;
1949}
1950
1951
Dmitry Shmidt04949592012-07-19 12:16:46 -07001952static enum p2p_probe_req_status
1953p2p_reply_probe(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
1954 const u8 *bssid, const u8 *ie, size_t ie_len)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001955{
1956 struct ieee802_11_elems elems;
1957 struct wpabuf *buf;
1958 struct ieee80211_mgmt *resp;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001959 struct p2p_message msg;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001960 struct wpabuf *ies;
1961
1962 if (!p2p->in_listen || !p2p->drv_in_listen) {
1963 /* not in Listen state - ignore Probe Request */
Dmitry Shmidt7f93d6f2014-02-21 11:22:49 -08001964 p2p_dbg(p2p, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
1965 p2p->in_listen, p2p->drv_in_listen);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001966 return P2P_PREQ_NOT_LISTEN;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001967 }
1968
1969 if (ieee802_11_parse_elems((u8 *) ie, ie_len, &elems, 0) ==
1970 ParseFailed) {
1971 /* Ignore invalid Probe Request frames */
Dmitry Shmidtec58b162014-02-19 12:44:18 -08001972 p2p_dbg(p2p, "Could not parse Probe Request frame - ignore it");
Dmitry Shmidt04949592012-07-19 12:16:46 -07001973 return P2P_PREQ_MALFORMED;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001974 }
1975
1976 if (elems.p2p == NULL) {
1977 /* not a P2P probe - ignore it */
Dmitry Shmidtec58b162014-02-19 12:44:18 -08001978 p2p_dbg(p2p, "Not a P2P probe - ignore it");
Dmitry Shmidt04949592012-07-19 12:16:46 -07001979 return P2P_PREQ_NOT_P2P;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001980 }
1981
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001982 if (dst && !is_broadcast_ether_addr(dst) &&
1983 os_memcmp(dst, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
1984 /* Not sent to the broadcast address or our P2P Device Address
1985 */
Dmitry Shmidtec58b162014-02-19 12:44:18 -08001986 p2p_dbg(p2p, "Probe Req DA " MACSTR " not ours - ignore it",
1987 MAC2STR(dst));
Dmitry Shmidt04949592012-07-19 12:16:46 -07001988 return P2P_PREQ_NOT_PROCESSED;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001989 }
1990
1991 if (bssid && !is_broadcast_ether_addr(bssid)) {
1992 /* Not sent to the Wildcard BSSID */
Dmitry Shmidtec58b162014-02-19 12:44:18 -08001993 p2p_dbg(p2p, "Probe Req BSSID " MACSTR " not wildcard - ignore it",
1994 MAC2STR(bssid));
Dmitry Shmidt04949592012-07-19 12:16:46 -07001995 return P2P_PREQ_NOT_PROCESSED;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001996 }
1997
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001998 if (elems.ssid == NULL || elems.ssid_len != P2P_WILDCARD_SSID_LEN ||
1999 os_memcmp(elems.ssid, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN) !=
2000 0) {
2001 /* not using P2P Wildcard SSID - ignore */
Dmitry Shmidtec58b162014-02-19 12:44:18 -08002002 p2p_dbg(p2p, "Probe Req not using P2P Wildcard SSID - ignore it");
Dmitry Shmidt04949592012-07-19 12:16:46 -07002003 return P2P_PREQ_NOT_PROCESSED;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002004 }
2005
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002006 if (supp_rates_11b_only(&elems)) {
2007 /* Indicates support for 11b rates only */
Dmitry Shmidtec58b162014-02-19 12:44:18 -08002008 p2p_dbg(p2p, "Probe Req with 11b rates only supported - ignore it");
Dmitry Shmidt04949592012-07-19 12:16:46 -07002009 return P2P_PREQ_NOT_P2P;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002010 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002011
2012 os_memset(&msg, 0, sizeof(msg));
2013 if (p2p_parse_ies(ie, ie_len, &msg) < 0) {
2014 /* Could not parse P2P attributes */
Dmitry Shmidtec58b162014-02-19 12:44:18 -08002015 p2p_dbg(p2p, "Could not parse P2P attributes in Probe Req - ignore it");
Dmitry Shmidt04949592012-07-19 12:16:46 -07002016 return P2P_PREQ_NOT_P2P;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002017 }
2018
2019 if (msg.device_id &&
Dmitry Shmidt04949592012-07-19 12:16:46 -07002020 os_memcmp(msg.device_id, p2p->cfg->dev_addr, ETH_ALEN) != 0) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002021 /* Device ID did not match */
Dmitry Shmidtec58b162014-02-19 12:44:18 -08002022 p2p_dbg(p2p, "Probe Req requested Device ID " MACSTR " did not match - ignore it",
2023 MAC2STR(msg.device_id));
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002024 p2p_parse_free(&msg);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002025 return P2P_PREQ_NOT_PROCESSED;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002026 }
2027
2028 /* Check Requested Device Type match */
2029 if (msg.wps_attributes &&
2030 !p2p_match_dev_type(p2p, msg.wps_attributes)) {
2031 /* No match with Requested Device Type */
Dmitry Shmidtec58b162014-02-19 12:44:18 -08002032 p2p_dbg(p2p, "Probe Req requestred Device Type did not match - ignore it");
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002033 p2p_parse_free(&msg);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002034 return P2P_PREQ_NOT_PROCESSED;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002035 }
2036 p2p_parse_free(&msg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002037
Dmitry Shmidt04949592012-07-19 12:16:46 -07002038 if (!p2p->cfg->send_probe_resp) {
2039 /* Response generated elsewhere */
Dmitry Shmidtec58b162014-02-19 12:44:18 -08002040 p2p_dbg(p2p, "Probe Resp generated elsewhere - do not generate additional response");
Dmitry Shmidt04949592012-07-19 12:16:46 -07002041 return P2P_PREQ_NOT_PROCESSED;
2042 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002043
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002044 p2p_dbg(p2p, "Reply to P2P Probe Request in Listen state");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002045
2046 /*
2047 * We do not really have a specific BSS that this frame is advertising,
2048 * so build a frame that has some information in valid format. This is
2049 * really only used for discovery purposes, not to learn exact BSS
2050 * parameters.
2051 */
2052 ies = p2p_build_probe_resp_ies(p2p);
2053 if (ies == NULL)
Dmitry Shmidt04949592012-07-19 12:16:46 -07002054 return P2P_PREQ_NOT_PROCESSED;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002055
2056 buf = wpabuf_alloc(200 + wpabuf_len(ies));
2057 if (buf == NULL) {
2058 wpabuf_free(ies);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002059 return P2P_PREQ_NOT_PROCESSED;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002060 }
2061
2062 resp = NULL;
2063 resp = wpabuf_put(buf, resp->u.probe_resp.variable - (u8 *) resp);
2064
2065 resp->frame_control = host_to_le16((WLAN_FC_TYPE_MGMT << 2) |
2066 (WLAN_FC_STYPE_PROBE_RESP << 4));
2067 os_memcpy(resp->da, addr, ETH_ALEN);
2068 os_memcpy(resp->sa, p2p->cfg->dev_addr, ETH_ALEN);
2069 os_memcpy(resp->bssid, p2p->cfg->dev_addr, ETH_ALEN);
2070 resp->u.probe_resp.beacon_int = host_to_le16(100);
2071 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2072 resp->u.probe_resp.capab_info =
2073 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE |
2074 WLAN_CAPABILITY_PRIVACY |
2075 WLAN_CAPABILITY_SHORT_SLOT_TIME);
2076
2077 wpabuf_put_u8(buf, WLAN_EID_SSID);
2078 wpabuf_put_u8(buf, P2P_WILDCARD_SSID_LEN);
2079 wpabuf_put_data(buf, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
2080
2081 wpabuf_put_u8(buf, WLAN_EID_SUPP_RATES);
2082 wpabuf_put_u8(buf, 8);
2083 wpabuf_put_u8(buf, (60 / 5) | 0x80);
2084 wpabuf_put_u8(buf, 90 / 5);
2085 wpabuf_put_u8(buf, (120 / 5) | 0x80);
2086 wpabuf_put_u8(buf, 180 / 5);
2087 wpabuf_put_u8(buf, (240 / 5) | 0x80);
2088 wpabuf_put_u8(buf, 360 / 5);
2089 wpabuf_put_u8(buf, 480 / 5);
2090 wpabuf_put_u8(buf, 540 / 5);
2091
2092 wpabuf_put_u8(buf, WLAN_EID_DS_PARAMS);
2093 wpabuf_put_u8(buf, 1);
2094 wpabuf_put_u8(buf, p2p->cfg->channel);
2095
2096 wpabuf_put_buf(buf, ies);
2097 wpabuf_free(ies);
2098
2099 p2p->cfg->send_probe_resp(p2p->cfg->cb_ctx, buf);
2100
2101 wpabuf_free(buf);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002102
2103 return P2P_PREQ_NOT_PROCESSED;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002104}
2105
2106
Dmitry Shmidt04949592012-07-19 12:16:46 -07002107enum p2p_probe_req_status
2108p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *dst,
2109 const u8 *bssid, const u8 *ie, size_t ie_len)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002110{
Dmitry Shmidt04949592012-07-19 12:16:46 -07002111 enum p2p_probe_req_status res;
2112
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002113 p2p_add_dev_from_probe_req(p2p, addr, ie, ie_len);
2114
Dmitry Shmidt04949592012-07-19 12:16:46 -07002115 res = p2p_reply_probe(p2p, addr, dst, bssid, ie, ie_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002116
2117 if ((p2p->state == P2P_CONNECT || p2p->state == P2P_CONNECT_LISTEN) &&
2118 p2p->go_neg_peer &&
2119 os_memcmp(addr, p2p->go_neg_peer->info.p2p_device_addr, ETH_ALEN)
Dmitry Shmidt9cdf1b92013-02-27 12:58:50 -08002120 == 0 &&
2121 !(p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002122 /* Received a Probe Request from GO Negotiation peer */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002123 p2p_dbg(p2p, "Found GO Negotiation peer - try to start GO negotiation from timeout");
Dmitry Shmidt9cdf1b92013-02-27 12:58:50 -08002124 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002125 eloop_register_timeout(0, 0, p2p_go_neg_start, p2p, NULL);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002126 return P2P_PREQ_PROCESSED;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002127 }
2128
2129 if ((p2p->state == P2P_INVITE || p2p->state == P2P_INVITE_LISTEN) &&
2130 p2p->invite_peer &&
Dmitry Shmidt3c479372014-02-04 10:50:36 -08002131 (p2p->invite_peer->flags & P2P_DEV_WAIT_INV_REQ_ACK) &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002132 os_memcmp(addr, p2p->invite_peer->info.p2p_device_addr, ETH_ALEN)
2133 == 0) {
2134 /* Received a Probe Request from Invite peer */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002135 p2p_dbg(p2p, "Found Invite peer - try to start Invite from timeout");
Dmitry Shmidt7f93d6f2014-02-21 11:22:49 -08002136 eloop_cancel_timeout(p2p_invite_start, p2p, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002137 eloop_register_timeout(0, 0, p2p_invite_start, p2p, NULL);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002138 return P2P_PREQ_PROCESSED;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002139 }
2140
Dmitry Shmidt04949592012-07-19 12:16:46 -07002141 return res;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002142}
2143
2144
2145static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
2146 u8 *buf, size_t len, struct wpabuf *p2p_ie)
2147{
2148 struct wpabuf *tmp;
2149 u8 *lpos;
2150 size_t tmplen;
2151 int res;
2152 u8 group_capab;
2153
2154 if (p2p_ie == NULL)
2155 return 0; /* WLAN AP is not a P2P manager */
2156
2157 /*
2158 * (Re)Association Request - P2P IE
2159 * P2P Capability attribute (shall be present)
2160 * P2P Interface attribute (present if concurrent device and
2161 * P2P Management is enabled)
2162 */
2163 tmp = wpabuf_alloc(200);
2164 if (tmp == NULL)
2165 return -1;
2166
2167 lpos = p2p_buf_add_ie_hdr(tmp);
2168 group_capab = 0;
2169 if (p2p->num_groups > 0) {
2170 group_capab |= P2P_GROUP_CAPAB_GROUP_OWNER;
2171 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2172 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED) &&
2173 p2p->cross_connect)
2174 group_capab |= P2P_GROUP_CAPAB_CROSS_CONN;
2175 }
2176 p2p_buf_add_capability(tmp, p2p->dev_capab, group_capab);
2177 if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
2178 (p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
2179 p2p_buf_add_p2p_interface(tmp, p2p);
2180 p2p_buf_update_ie_hdr(tmp, lpos);
2181
2182 tmplen = wpabuf_len(tmp);
2183 if (tmplen > len)
2184 res = -1;
2185 else {
2186 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2187 res = tmplen;
2188 }
2189 wpabuf_free(tmp);
2190
2191 return res;
2192}
2193
2194
2195int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
2196 size_t len, int p2p_group, struct wpabuf *p2p_ie)
2197{
2198 struct wpabuf *tmp;
2199 u8 *lpos;
2200 struct p2p_device *peer;
2201 size_t tmplen;
2202 int res;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002203 size_t extra = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002204
2205 if (!p2p_group)
2206 return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
2207
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002208#ifdef CONFIG_WIFI_DISPLAY
2209 if (p2p->wfd_ie_assoc_req)
2210 extra = wpabuf_len(p2p->wfd_ie_assoc_req);
2211#endif /* CONFIG_WIFI_DISPLAY */
2212
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002213 /*
2214 * (Re)Association Request - P2P IE
2215 * P2P Capability attribute (shall be present)
2216 * Extended Listen Timing (may be present)
2217 * P2P Device Info attribute (shall be present)
2218 */
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002219 tmp = wpabuf_alloc(200 + extra);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002220 if (tmp == NULL)
2221 return -1;
2222
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002223#ifdef CONFIG_WIFI_DISPLAY
2224 if (p2p->wfd_ie_assoc_req)
2225 wpabuf_put_buf(tmp, p2p->wfd_ie_assoc_req);
2226#endif /* CONFIG_WIFI_DISPLAY */
2227
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002228 peer = bssid ? p2p_get_device(p2p, bssid) : NULL;
2229
2230 lpos = p2p_buf_add_ie_hdr(tmp);
2231 p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
2232 if (p2p->ext_listen_interval)
2233 p2p_buf_add_ext_listen_timing(tmp, p2p->ext_listen_period,
2234 p2p->ext_listen_interval);
2235 p2p_buf_add_device_info(tmp, p2p, peer);
2236 p2p_buf_update_ie_hdr(tmp, lpos);
2237
2238 tmplen = wpabuf_len(tmp);
2239 if (tmplen > len)
2240 res = -1;
2241 else {
2242 os_memcpy(buf, wpabuf_head(tmp), tmplen);
2243 res = tmplen;
2244 }
2245 wpabuf_free(tmp);
2246
2247 return res;
2248}
2249
2250
2251int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end)
2252{
2253 struct wpabuf *p2p_ie;
2254 int ret;
2255
2256 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len, P2P_IE_VENDOR_TYPE);
2257 if (p2p_ie == NULL)
2258 return 0;
2259
2260 ret = p2p_attr_text(p2p_ie, buf, end);
2261 wpabuf_free(p2p_ie);
2262 return ret;
2263}
2264
2265
Dmitry Shmidt04949592012-07-19 12:16:46 -07002266int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf *p2p_ie, u8 *dev_addr)
2267{
2268 struct p2p_message msg;
2269
2270 os_memset(&msg, 0, sizeof(msg));
2271 if (p2p_parse_p2p_ie(p2p_ie, &msg))
2272 return -1;
2273
2274 if (msg.p2p_device_addr) {
2275 os_memcpy(dev_addr, msg.p2p_device_addr, ETH_ALEN);
2276 return 0;
2277 } else if (msg.device_id) {
2278 os_memcpy(dev_addr, msg.device_id, ETH_ALEN);
2279 return 0;
2280 }
2281 return -1;
2282}
2283
2284
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002285int p2p_parse_dev_addr(const u8 *ies, size_t ies_len, u8 *dev_addr)
2286{
2287 struct wpabuf *p2p_ie;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002288 int ret;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002289
2290 p2p_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
2291 P2P_IE_VENDOR_TYPE);
2292 if (p2p_ie == NULL)
2293 return -1;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002294 ret = p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002295 wpabuf_free(p2p_ie);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002296 return ret;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002297}
2298
2299
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002300static void p2p_clear_go_neg(struct p2p_data *p2p)
2301{
2302 p2p->go_neg_peer = NULL;
2303 p2p_clear_timeout(p2p);
2304 p2p_set_state(p2p, P2P_IDLE);
2305}
2306
2307
2308void p2p_wps_success_cb(struct p2p_data *p2p, const u8 *mac_addr)
2309{
2310 if (p2p->go_neg_peer == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002311 p2p_dbg(p2p, "No pending Group Formation - ignore WPS registration success notification");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002312 return; /* No pending Group Formation */
2313 }
2314
2315 if (os_memcmp(mac_addr, p2p->go_neg_peer->intended_addr, ETH_ALEN) !=
2316 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002317 p2p_dbg(p2p, "Ignore WPS registration success notification for "
2318 MACSTR " (GO Negotiation peer " MACSTR ")",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002319 MAC2STR(mac_addr),
2320 MAC2STR(p2p->go_neg_peer->intended_addr));
2321 return; /* Ignore unexpected peer address */
2322 }
2323
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002324 p2p_dbg(p2p, "Group Formation completed successfully with " MACSTR,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002325 MAC2STR(mac_addr));
2326
2327 p2p_clear_go_neg(p2p);
2328}
2329
2330
2331void p2p_group_formation_failed(struct p2p_data *p2p)
2332{
2333 if (p2p->go_neg_peer == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002334 p2p_dbg(p2p, "No pending Group Formation - ignore group formation failure notification");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002335 return; /* No pending Group Formation */
2336 }
2337
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002338 p2p_dbg(p2p, "Group Formation failed with " MACSTR,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002339 MAC2STR(p2p->go_neg_peer->intended_addr));
2340
2341 p2p_clear_go_neg(p2p);
2342}
2343
2344
2345struct p2p_data * p2p_init(const struct p2p_config *cfg)
2346{
2347 struct p2p_data *p2p;
2348
2349 if (cfg->max_peers < 1)
2350 return NULL;
2351
2352 p2p = os_zalloc(sizeof(*p2p) + sizeof(*cfg));
2353 if (p2p == NULL)
2354 return NULL;
2355 p2p->cfg = (struct p2p_config *) (p2p + 1);
2356 os_memcpy(p2p->cfg, cfg, sizeof(*cfg));
2357 if (cfg->dev_name)
2358 p2p->cfg->dev_name = os_strdup(cfg->dev_name);
2359 if (cfg->manufacturer)
2360 p2p->cfg->manufacturer = os_strdup(cfg->manufacturer);
2361 if (cfg->model_name)
2362 p2p->cfg->model_name = os_strdup(cfg->model_name);
2363 if (cfg->model_number)
2364 p2p->cfg->model_number = os_strdup(cfg->model_number);
2365 if (cfg->serial_number)
2366 p2p->cfg->serial_number = os_strdup(cfg->serial_number);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002367 if (cfg->pref_chan) {
2368 p2p->cfg->pref_chan = os_malloc(cfg->num_pref_chan *
2369 sizeof(struct p2p_channel));
2370 if (p2p->cfg->pref_chan) {
2371 os_memcpy(p2p->cfg->pref_chan, cfg->pref_chan,
2372 cfg->num_pref_chan *
2373 sizeof(struct p2p_channel));
2374 } else
2375 p2p->cfg->num_pref_chan = 0;
2376 }
2377
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002378 p2p->min_disc_int = 1;
2379 p2p->max_disc_int = 3;
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08002380 p2p->max_disc_tu = -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002381
2382 os_get_random(&p2p->next_tie_breaker, 1);
2383 p2p->next_tie_breaker &= 0x01;
2384 if (cfg->sd_request)
2385 p2p->dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
2386 p2p->dev_capab |= P2P_DEV_CAPAB_INVITATION_PROCEDURE;
2387 if (cfg->concurrent_operations)
2388 p2p->dev_capab |= P2P_DEV_CAPAB_CONCURRENT_OPER;
2389 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
2390
2391 dl_list_init(&p2p->devices);
2392
2393 eloop_register_timeout(P2P_PEER_EXPIRATION_INTERVAL, 0,
2394 p2p_expiration_timeout, p2p, NULL);
2395
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002396 p2p->go_timeout = 100;
2397 p2p->client_timeout = 20;
Dmitry Shmidt13ca8d82014-02-20 10:18:40 -08002398 p2p->num_p2p_sd_queries = 0;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002399
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07002400 p2p_dbg(p2p, "initialized");
2401 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
2402 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
2403
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002404 return p2p;
2405}
2406
2407
2408void p2p_deinit(struct p2p_data *p2p)
2409{
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002410#ifdef CONFIG_WIFI_DISPLAY
2411 wpabuf_free(p2p->wfd_ie_beacon);
2412 wpabuf_free(p2p->wfd_ie_probe_req);
2413 wpabuf_free(p2p->wfd_ie_probe_resp);
2414 wpabuf_free(p2p->wfd_ie_assoc_req);
2415 wpabuf_free(p2p->wfd_ie_invitation);
2416 wpabuf_free(p2p->wfd_ie_prov_disc_req);
2417 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
2418 wpabuf_free(p2p->wfd_ie_go_neg);
2419 wpabuf_free(p2p->wfd_dev_info);
2420 wpabuf_free(p2p->wfd_assoc_bssid);
2421 wpabuf_free(p2p->wfd_coupled_sink_info);
2422#endif /* CONFIG_WIFI_DISPLAY */
2423
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002424 eloop_cancel_timeout(p2p_expiration_timeout, p2p, NULL);
2425 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
2426 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
Dmitry Shmidt9cdf1b92013-02-27 12:58:50 -08002427 eloop_cancel_timeout(p2p_go_neg_start, p2p, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002428 p2p_flush(p2p);
2429 p2p_free_req_dev_types(p2p);
2430 os_free(p2p->cfg->dev_name);
2431 os_free(p2p->cfg->manufacturer);
2432 os_free(p2p->cfg->model_name);
2433 os_free(p2p->cfg->model_number);
2434 os_free(p2p->cfg->serial_number);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002435 os_free(p2p->cfg->pref_chan);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002436 os_free(p2p->groups);
2437 wpabuf_free(p2p->sd_resp);
2438 os_free(p2p->after_scan_tx);
2439 p2p_remove_wps_vendor_extensions(p2p);
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07002440 os_free(p2p->no_go_freq.range);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002441 os_free(p2p);
2442}
2443
2444
2445void p2p_flush(struct p2p_data *p2p)
2446{
2447 struct p2p_device *dev, *prev;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002448 p2p_stop_find(p2p);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002449 dl_list_for_each_safe(dev, prev, &p2p->devices, struct p2p_device,
2450 list) {
2451 dl_list_del(&dev->list);
2452 p2p_device_free(p2p, dev);
2453 }
2454 p2p_free_sd_queries(p2p);
2455 os_free(p2p->after_scan_tx);
2456 p2p->after_scan_tx = NULL;
2457}
2458
2459
2460int p2p_unauthorize(struct p2p_data *p2p, const u8 *addr)
2461{
2462 struct p2p_device *dev;
2463
2464 dev = p2p_get_device(p2p, addr);
2465 if (dev == NULL)
2466 return -1;
2467
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002468 p2p_dbg(p2p, "Unauthorizing " MACSTR, MAC2STR(addr));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002469
2470 if (p2p->go_neg_peer == dev)
2471 p2p->go_neg_peer = NULL;
2472
2473 dev->wps_method = WPS_NOT_READY;
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08002474 dev->oob_pw_id = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002475 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_RESPONSE;
2476 dev->flags &= ~P2P_DEV_WAIT_GO_NEG_CONFIRM;
2477
2478 /* Check if after_scan_tx is for this peer. If so free it */
2479 if (p2p->after_scan_tx &&
2480 os_memcmp(addr, p2p->after_scan_tx->dst, ETH_ALEN) == 0) {
2481 os_free(p2p->after_scan_tx);
2482 p2p->after_scan_tx = NULL;
2483 }
2484
2485 return 0;
2486}
2487
2488
2489int p2p_set_dev_name(struct p2p_data *p2p, const char *dev_name)
2490{
2491 os_free(p2p->cfg->dev_name);
2492 if (dev_name) {
2493 p2p->cfg->dev_name = os_strdup(dev_name);
2494 if (p2p->cfg->dev_name == NULL)
2495 return -1;
2496 } else
2497 p2p->cfg->dev_name = NULL;
2498 return 0;
2499}
2500
2501
2502int p2p_set_manufacturer(struct p2p_data *p2p, const char *manufacturer)
2503{
2504 os_free(p2p->cfg->manufacturer);
2505 p2p->cfg->manufacturer = NULL;
2506 if (manufacturer) {
2507 p2p->cfg->manufacturer = os_strdup(manufacturer);
2508 if (p2p->cfg->manufacturer == NULL)
2509 return -1;
2510 }
2511
2512 return 0;
2513}
2514
2515
2516int p2p_set_model_name(struct p2p_data *p2p, const char *model_name)
2517{
2518 os_free(p2p->cfg->model_name);
2519 p2p->cfg->model_name = NULL;
2520 if (model_name) {
2521 p2p->cfg->model_name = os_strdup(model_name);
2522 if (p2p->cfg->model_name == NULL)
2523 return -1;
2524 }
2525
2526 return 0;
2527}
2528
2529
2530int p2p_set_model_number(struct p2p_data *p2p, const char *model_number)
2531{
2532 os_free(p2p->cfg->model_number);
2533 p2p->cfg->model_number = NULL;
2534 if (model_number) {
2535 p2p->cfg->model_number = os_strdup(model_number);
2536 if (p2p->cfg->model_number == NULL)
2537 return -1;
2538 }
2539
2540 return 0;
2541}
2542
2543
2544int p2p_set_serial_number(struct p2p_data *p2p, const char *serial_number)
2545{
2546 os_free(p2p->cfg->serial_number);
2547 p2p->cfg->serial_number = NULL;
2548 if (serial_number) {
2549 p2p->cfg->serial_number = os_strdup(serial_number);
2550 if (p2p->cfg->serial_number == NULL)
2551 return -1;
2552 }
2553
2554 return 0;
2555}
2556
2557
2558void p2p_set_config_methods(struct p2p_data *p2p, u16 config_methods)
2559{
2560 p2p->cfg->config_methods = config_methods;
2561}
2562
2563
2564void p2p_set_uuid(struct p2p_data *p2p, const u8 *uuid)
2565{
2566 os_memcpy(p2p->cfg->uuid, uuid, 16);
2567}
2568
2569
2570int p2p_set_pri_dev_type(struct p2p_data *p2p, const u8 *pri_dev_type)
2571{
2572 os_memcpy(p2p->cfg->pri_dev_type, pri_dev_type, 8);
2573 return 0;
2574}
2575
2576
2577int p2p_set_sec_dev_types(struct p2p_data *p2p, const u8 dev_types[][8],
2578 size_t num_dev_types)
2579{
2580 if (num_dev_types > P2P_SEC_DEVICE_TYPES)
2581 num_dev_types = P2P_SEC_DEVICE_TYPES;
2582 p2p->cfg->num_sec_dev_types = num_dev_types;
2583 os_memcpy(p2p->cfg->sec_dev_type, dev_types, num_dev_types * 8);
2584 return 0;
2585}
2586
2587
2588void p2p_remove_wps_vendor_extensions(struct p2p_data *p2p)
2589{
2590 int i;
2591
2592 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
2593 wpabuf_free(p2p->wps_vendor_ext[i]);
2594 p2p->wps_vendor_ext[i] = NULL;
2595 }
2596}
2597
2598
2599int p2p_add_wps_vendor_extension(struct p2p_data *p2p,
2600 const struct wpabuf *vendor_ext)
2601{
2602 int i;
2603
2604 if (vendor_ext == NULL)
2605 return -1;
2606
2607 for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
2608 if (p2p->wps_vendor_ext[i] == NULL)
2609 break;
2610 }
2611 if (i >= P2P_MAX_WPS_VENDOR_EXT)
2612 return -1;
2613
2614 p2p->wps_vendor_ext[i] = wpabuf_dup(vendor_ext);
2615 if (p2p->wps_vendor_ext[i] == NULL)
2616 return -1;
2617
2618 return 0;
2619}
2620
2621
2622int p2p_set_country(struct p2p_data *p2p, const char *country)
2623{
2624 os_memcpy(p2p->cfg->country, country, 3);
2625 return 0;
2626}
2627
2628
2629void p2p_continue_find(struct p2p_data *p2p)
2630{
2631 struct p2p_device *dev;
2632 p2p_set_state(p2p, P2P_SEARCH);
2633 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
Dmitry Shmidt13ca8d82014-02-20 10:18:40 -08002634 if (dev->sd_pending_bcast_queries == 0) {
2635 /* Initialize with total number of registered broadcast
2636 * SD queries. */
2637 dev->sd_pending_bcast_queries = p2p->num_p2p_sd_queries;
2638 }
2639
2640 if (p2p_start_sd(p2p, dev) == 0)
2641 return;
2642 if (dev->req_config_methods &&
2643 !(dev->flags & P2P_DEV_PD_FOR_JOIN)) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002644 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002645 MACSTR " (config methods 0x%x)",
2646 MAC2STR(dev->info.p2p_device_addr),
2647 dev->req_config_methods);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002648 if (p2p_send_prov_disc_req(p2p, dev, 0, 0) == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002649 return;
2650 }
2651 }
2652
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08002653 p2p_listen_in_find(p2p, 1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002654}
2655
2656
2657static void p2p_sd_cb(struct p2p_data *p2p, int success)
2658{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002659 p2p_dbg(p2p, "Service Discovery Query TX callback: success=%d",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002660 success);
2661 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2662
2663 if (!success) {
Dmitry Shmidt13ca8d82014-02-20 10:18:40 -08002664 p2p->sd_peer = NULL;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002665 p2p_continue_find(p2p);
2666 return;
2667 }
2668
2669 if (p2p->sd_peer == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002670 p2p_dbg(p2p, "No SD peer entry known");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002671 p2p_continue_find(p2p);
2672 return;
2673 }
2674
2675 /* Wait for response from the peer */
2676 p2p_set_state(p2p, P2P_SD_DURING_FIND);
2677 p2p_set_timeout(p2p, 0, 200000);
2678}
2679
Jouni Malinen75ecf522011-06-27 15:19:46 -07002680
2681/**
2682 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
2683 * @p2p: P2P module context from p2p_init()
2684 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002685static void p2p_retry_pd(struct p2p_data *p2p)
Jouni Malinen75ecf522011-06-27 15:19:46 -07002686{
2687 struct p2p_device *dev;
2688
2689 if (p2p->state != P2P_IDLE)
2690 return;
2691
2692 /*
2693 * Retry the prov disc req attempt only for the peer that the user had
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08002694 * requested.
Jouni Malinen75ecf522011-06-27 15:19:46 -07002695 */
2696
2697 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
2698 if (os_memcmp(p2p->pending_pd_devaddr,
2699 dev->info.p2p_device_addr, ETH_ALEN) != 0)
2700 continue;
2701 if (!dev->req_config_methods)
2702 continue;
Jouni Malinen75ecf522011-06-27 15:19:46 -07002703
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002704 p2p_dbg(p2p, "Send pending Provision Discovery Request to "
Jouni Malinen75ecf522011-06-27 15:19:46 -07002705 MACSTR " (config methods 0x%x)",
2706 MAC2STR(dev->info.p2p_device_addr),
2707 dev->req_config_methods);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08002708 p2p_send_prov_disc_req(p2p, dev,
Dmitry Shmidt051af732013-10-22 13:52:46 -07002709 dev->flags & P2P_DEV_PD_FOR_JOIN,
2710 p2p->pd_force_freq);
Jouni Malinen75ecf522011-06-27 15:19:46 -07002711 return;
2712 }
2713}
2714
2715
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002716static void p2p_prov_disc_cb(struct p2p_data *p2p, int success)
2717{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002718 p2p_dbg(p2p, "Provision Discovery Request TX callback: success=%d",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002719 success);
Jouni Malinen75ecf522011-06-27 15:19:46 -07002720
2721 /*
2722 * Postpone resetting the pending action state till after we actually
2723 * time out. This allows us to take some action like notifying any
2724 * interested parties about no response to the request.
2725 *
2726 * When the timer (below) goes off we check in IDLE, SEARCH, or
2727 * LISTEN_ONLY state, which are the only allowed states to issue a PD
2728 * requests in, if this was still pending and then raise notification.
2729 */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002730
2731 if (!success) {
Jouni Malinen75ecf522011-06-27 15:19:46 -07002732 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2733
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002734 if (p2p->user_initiated_pd &&
2735 (p2p->state == P2P_SEARCH || p2p->state == P2P_LISTEN_ONLY))
2736 {
2737 /* Retry request from timeout to avoid busy loops */
2738 p2p->pending_action_state = P2P_PENDING_PD;
2739 p2p_set_timeout(p2p, 0, 50000);
2740 } else if (p2p->state != P2P_IDLE)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002741 p2p_continue_find(p2p);
Jouni Malinen75ecf522011-06-27 15:19:46 -07002742 else if (p2p->user_initiated_pd) {
2743 p2p->pending_action_state = P2P_PENDING_PD;
2744 p2p_set_timeout(p2p, 0, 300000);
2745 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002746 return;
2747 }
2748
Jouni Malinen75ecf522011-06-27 15:19:46 -07002749 /*
2750 * This postponing, of resetting pending_action_state, needs to be
2751 * done only for user initiated PD requests and not internal ones.
2752 */
2753 if (p2p->user_initiated_pd)
2754 p2p->pending_action_state = P2P_PENDING_PD;
2755 else
2756 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2757
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002758 /* Wait for response from the peer */
2759 if (p2p->state == P2P_SEARCH)
2760 p2p_set_state(p2p, P2P_PD_DURING_FIND);
2761 p2p_set_timeout(p2p, 0, 200000);
2762}
2763
2764
2765int p2p_scan_res_handler(struct p2p_data *p2p, const u8 *bssid, int freq,
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08002766 struct os_reltime *rx_time, int level, const u8 *ies,
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -08002767 size_t ies_len)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002768{
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08002769 if (os_reltime_before(rx_time, &p2p->find_start)) {
Dmitry Shmidtf8623282013-02-20 14:34:59 -08002770 /*
2771 * The driver may have cached (e.g., in cfg80211 BSS table) the
2772 * scan results for relatively long time. To avoid reporting
2773 * stale information, update P2P peers only based on results
2774 * that have based on frames received after the last p2p_find
2775 * operation was started.
2776 */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002777 p2p_dbg(p2p, "Ignore old scan result for " MACSTR
2778 " (rx_time=%u.%06u)",
Dmitry Shmidtf8623282013-02-20 14:34:59 -08002779 MAC2STR(bssid), (unsigned int) rx_time->sec,
2780 (unsigned int) rx_time->usec);
2781 return 0;
2782 }
2783
2784 p2p_add_device(p2p, bssid, freq, rx_time, level, ies, ies_len, 1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002785
2786 return 0;
2787}
2788
2789
2790void p2p_scan_res_handled(struct p2p_data *p2p)
2791{
2792 if (!p2p->p2p_scan_running) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002793 p2p_dbg(p2p, "p2p_scan was not running, but scan results received");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002794 }
2795 p2p->p2p_scan_running = 0;
2796 eloop_cancel_timeout(p2p_scan_timeout, p2p, NULL);
2797
2798 if (p2p_run_after_scan(p2p))
2799 return;
2800 if (p2p->state == P2P_SEARCH)
2801 p2p_continue_find(p2p);
2802}
2803
2804
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002805void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002806{
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002807 u8 *len;
2808
2809#ifdef CONFIG_WIFI_DISPLAY
2810 if (p2p->wfd_ie_probe_req)
2811 wpabuf_put_buf(ies, p2p->wfd_ie_probe_req);
2812#endif /* CONFIG_WIFI_DISPLAY */
2813
2814 len = p2p_buf_add_ie_hdr(ies);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002815 p2p_buf_add_capability(ies, p2p->dev_capab &
2816 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002817 if (dev_id)
2818 p2p_buf_add_device_id(ies, dev_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002819 if (p2p->cfg->reg_class && p2p->cfg->channel)
2820 p2p_buf_add_listen_channel(ies, p2p->cfg->country,
2821 p2p->cfg->reg_class,
2822 p2p->cfg->channel);
2823 if (p2p->ext_listen_interval)
2824 p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
2825 p2p->ext_listen_interval);
2826 /* TODO: p2p_buf_add_operating_channel() if GO */
2827 p2p_buf_update_ie_hdr(ies, len);
2828}
2829
2830
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002831size_t p2p_scan_ie_buf_len(struct p2p_data *p2p)
2832{
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002833 size_t len = 100;
2834
2835#ifdef CONFIG_WIFI_DISPLAY
2836 if (p2p && p2p->wfd_ie_probe_req)
2837 len += wpabuf_len(p2p->wfd_ie_probe_req);
2838#endif /* CONFIG_WIFI_DISPLAY */
2839
2840 return len;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002841}
2842
2843
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002844int p2p_ie_text(struct wpabuf *p2p_ie, char *buf, char *end)
2845{
2846 return p2p_attr_text(p2p_ie, buf, end);
2847}
2848
2849
2850static void p2p_go_neg_req_cb(struct p2p_data *p2p, int success)
2851{
2852 struct p2p_device *dev = p2p->go_neg_peer;
Dmitry Shmidt8c652892013-03-01 10:14:01 -08002853 int timeout;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002854
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002855 p2p_dbg(p2p, "GO Negotiation Request TX callback: success=%d", success);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002856
2857 if (dev == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002858 p2p_dbg(p2p, "No pending GO Negotiation");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002859 return;
2860 }
2861
2862 if (success) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002863 if (dev->flags & P2P_DEV_USER_REJECTED) {
2864 p2p_set_state(p2p, P2P_IDLE);
2865 return;
2866 }
Dmitry Shmidt04949592012-07-19 12:16:46 -07002867 } else if (dev->go_neg_req_sent) {
2868 /* Cancel the increment from p2p_connect_send() on failure */
Dmitry Shmidt98f9e762012-05-30 11:18:46 -07002869 dev->go_neg_req_sent--;
2870 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002871
2872 if (!success &&
2873 (dev->info.dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY) &&
2874 !is_zero_ether_addr(dev->member_in_go_dev)) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002875 p2p_dbg(p2p, "Peer " MACSTR " did not acknowledge request - try to use device discoverability through its GO",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002876 MAC2STR(dev->info.p2p_device_addr));
2877 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2878 p2p_send_dev_disc_req(p2p, dev);
2879 return;
2880 }
2881
2882 /*
2883 * Use P2P find, if needed, to find the other device from its listen
2884 * channel.
2885 */
2886 p2p_set_state(p2p, P2P_CONNECT);
Dmitry Shmidt8c652892013-03-01 10:14:01 -08002887 timeout = success ? 500000 : 100000;
2888 if (!success && p2p->go_neg_peer &&
2889 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE)) {
2890 unsigned int r;
2891 /*
2892 * Peer is expected to wait our response and we will skip the
2893 * listen phase. Add some randomness to the wait time here to
2894 * make it less likely to hit cases where we could end up in
2895 * sync with peer not listening.
2896 */
2897 os_get_random((u8 *) &r, sizeof(r));
2898 timeout += r % 100000;
2899 }
2900 p2p_set_timeout(p2p, 0, timeout);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002901}
2902
2903
2904static void p2p_go_neg_resp_cb(struct p2p_data *p2p, int success)
2905{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002906 p2p_dbg(p2p, "GO Negotiation Response TX callback: success=%d",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002907 success);
2908 if (!p2p->go_neg_peer && p2p->state == P2P_PROVISIONING) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002909 p2p_dbg(p2p, "Ignore TX callback event - GO Negotiation is not running anymore");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002910 return;
2911 }
2912 p2p_set_state(p2p, P2P_CONNECT);
Dmitry Shmidt8c652892013-03-01 10:14:01 -08002913 p2p_set_timeout(p2p, 0, 500000);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002914}
2915
2916
Dmitry Shmidt4b060592013-04-29 16:42:49 -07002917static void p2p_go_neg_resp_failure_cb(struct p2p_data *p2p, int success,
2918 const u8 *addr)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002919{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002920 p2p_dbg(p2p, "GO Negotiation Response (failure) TX callback: success=%d", success);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002921 if (p2p->go_neg_peer && p2p->go_neg_peer->status != P2P_SC_SUCCESS) {
2922 p2p_go_neg_failed(p2p, p2p->go_neg_peer,
2923 p2p->go_neg_peer->status);
Dmitry Shmidt4b060592013-04-29 16:42:49 -07002924 } else if (success) {
2925 struct p2p_device *dev;
2926 dev = p2p_get_device(p2p, addr);
2927 if (dev &&
2928 dev->status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE)
2929 dev->flags |= P2P_DEV_PEER_WAITING_RESPONSE;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002930 }
2931}
2932
2933
2934static void p2p_go_neg_conf_cb(struct p2p_data *p2p,
2935 enum p2p_send_action_result result)
2936{
2937 struct p2p_device *dev;
2938
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002939 p2p_dbg(p2p, "GO Negotiation Confirm TX callback: result=%d", result);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002940 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2941 if (result == P2P_SEND_ACTION_FAILED) {
2942 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
2943 return;
2944 }
2945 if (result == P2P_SEND_ACTION_NO_ACK) {
2946 /*
2947 * It looks like the TX status for GO Negotiation Confirm is
2948 * often showing failure even when the peer has actually
2949 * received the frame. Since the peer may change channels
2950 * immediately after having received the frame, we may not see
2951 * an Ack for retries, so just dropping a single frame may
2952 * trigger this. To allow the group formation to succeed if the
2953 * peer did indeed receive the frame, continue regardless of
2954 * the TX status.
2955 */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002956 p2p_dbg(p2p, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002957 }
2958
2959 dev = p2p->go_neg_peer;
2960 if (dev == NULL)
2961 return;
2962
2963 p2p_go_complete(p2p, dev);
2964}
2965
2966
2967void p2p_send_action_cb(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
2968 const u8 *src, const u8 *bssid,
2969 enum p2p_send_action_result result)
2970{
2971 enum p2p_pending_action_state state;
2972 int success;
2973
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002974 p2p_dbg(p2p, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002975 " src=" MACSTR " bssid=" MACSTR " result=%d",
2976 p2p->pending_action_state, freq, MAC2STR(dst), MAC2STR(src),
2977 MAC2STR(bssid), result);
2978 success = result == P2P_SEND_ACTION_SUCCESS;
2979 state = p2p->pending_action_state;
2980 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
2981 switch (state) {
2982 case P2P_NO_PENDING_ACTION:
Dmitry Shmidt4582d2a2014-02-28 11:14:23 -08002983 if (p2p->send_action_in_progress) {
2984 p2p->send_action_in_progress = 0;
2985 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
2986 }
Dmitry Shmidt8da800a2013-04-24 12:57:01 -07002987 if (p2p->after_scan_tx_in_progress) {
2988 p2p->after_scan_tx_in_progress = 0;
2989 if (p2p->start_after_scan != P2P_AFTER_SCAN_NOTHING &&
2990 p2p_run_after_scan(p2p))
2991 break;
2992 if (p2p->state == P2P_SEARCH) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07002993 p2p_dbg(p2p, "Continue find after after_scan_tx completion");
Dmitry Shmidt8da800a2013-04-24 12:57:01 -07002994 p2p_continue_find(p2p);
2995 }
2996 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002997 break;
2998 case P2P_PENDING_GO_NEG_REQUEST:
2999 p2p_go_neg_req_cb(p2p, success);
3000 break;
3001 case P2P_PENDING_GO_NEG_RESPONSE:
3002 p2p_go_neg_resp_cb(p2p, success);
3003 break;
3004 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE:
Dmitry Shmidt4b060592013-04-29 16:42:49 -07003005 p2p_go_neg_resp_failure_cb(p2p, success, dst);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003006 break;
3007 case P2P_PENDING_GO_NEG_CONFIRM:
3008 p2p_go_neg_conf_cb(p2p, result);
3009 break;
3010 case P2P_PENDING_SD:
3011 p2p_sd_cb(p2p, success);
3012 break;
3013 case P2P_PENDING_PD:
3014 p2p_prov_disc_cb(p2p, success);
3015 break;
3016 case P2P_PENDING_INVITATION_REQUEST:
3017 p2p_invitation_req_cb(p2p, success);
3018 break;
3019 case P2P_PENDING_INVITATION_RESPONSE:
3020 p2p_invitation_resp_cb(p2p, success);
3021 break;
3022 case P2P_PENDING_DEV_DISC_REQUEST:
3023 p2p_dev_disc_req_cb(p2p, success);
3024 break;
3025 case P2P_PENDING_DEV_DISC_RESPONSE:
3026 p2p_dev_disc_resp_cb(p2p, success);
3027 break;
3028 case P2P_PENDING_GO_DISC_REQ:
3029 p2p_go_disc_req_cb(p2p, success);
3030 break;
3031 }
Dmitry Shmidt8da800a2013-04-24 12:57:01 -07003032
3033 p2p->after_scan_tx_in_progress = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003034}
3035
3036
3037void p2p_listen_cb(struct p2p_data *p2p, unsigned int freq,
3038 unsigned int duration)
3039{
3040 if (freq == p2p->pending_client_disc_freq) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003041 p2p_dbg(p2p, "Client discoverability remain-awake completed");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003042 p2p->pending_client_disc_freq = 0;
3043 return;
3044 }
3045
3046 if (freq != p2p->pending_listen_freq) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003047 p2p_dbg(p2p, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003048 freq, duration, p2p->pending_listen_freq);
3049 return;
3050 }
3051
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003052 p2p_dbg(p2p, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003053 p2p->pending_listen_sec, p2p->pending_listen_usec,
3054 p2p->pending_listen_freq);
3055 p2p->in_listen = 1;
3056 p2p->drv_in_listen = freq;
3057 if (p2p->pending_listen_sec || p2p->pending_listen_usec) {
3058 /*
3059 * Add 20 msec extra wait to avoid race condition with driver
3060 * remain-on-channel end event, i.e., give driver more time to
3061 * complete the operation before our timeout expires.
3062 */
3063 p2p_set_timeout(p2p, p2p->pending_listen_sec,
3064 p2p->pending_listen_usec + 20000);
3065 }
3066
3067 p2p->pending_listen_freq = 0;
3068}
3069
3070
3071int p2p_listen_end(struct p2p_data *p2p, unsigned int freq)
3072{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003073 p2p_dbg(p2p, "Driver ended Listen state (freq=%u)", freq);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003074 p2p->drv_in_listen = 0;
3075 if (p2p->in_listen)
3076 return 0; /* Internal timeout will trigger the next step */
3077
3078 if (p2p->state == P2P_CONNECT_LISTEN && p2p->go_neg_peer) {
3079 if (p2p->go_neg_peer->connect_reqs >= 120) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003080 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003081 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3082 return 0;
3083 }
3084
3085 p2p_set_state(p2p, P2P_CONNECT);
3086 p2p_connect_send(p2p, p2p->go_neg_peer);
3087 return 1;
3088 } else if (p2p->state == P2P_SEARCH) {
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003089 if (p2p->p2p_scan_running) {
3090 /*
3091 * Search is already in progress. This can happen if
3092 * an Action frame RX is reported immediately after
3093 * the end of a remain-on-channel operation and the
3094 * response frame to that is sent using an offchannel
3095 * operation while in p2p_find. Avoid an attempt to
3096 * restart a scan here.
3097 */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003098 p2p_dbg(p2p, "p2p_scan already in progress - do not try to start a new one");
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003099 return 1;
3100 }
Dmitry Shmidt04949592012-07-19 12:16:46 -07003101 if (p2p->pending_listen_freq) {
3102 /*
3103 * Better wait a bit if the driver is unable to start
3104 * offchannel operation for some reason. p2p_search()
3105 * will be started from internal timeout.
3106 */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003107 p2p_dbg(p2p, "Listen operation did not seem to start - delay search phase to avoid busy loop");
Dmitry Shmidt04949592012-07-19 12:16:46 -07003108 p2p_set_timeout(p2p, 0, 100000);
3109 return 1;
3110 }
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003111 if (p2p->search_delay) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003112 p2p_dbg(p2p, "Delay search operation by %u ms",
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003113 p2p->search_delay);
3114 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3115 (p2p->search_delay % 1000) * 1000);
3116 return 1;
3117 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003118 p2p_search(p2p);
3119 return 1;
3120 }
3121
3122 return 0;
3123}
3124
3125
3126static void p2p_timeout_connect(struct p2p_data *p2p)
3127{
3128 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
Dmitry Shmidt04949592012-07-19 12:16:46 -07003129 if (p2p->go_neg_peer &&
3130 (p2p->go_neg_peer->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM)) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003131 p2p_dbg(p2p, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
Dmitry Shmidt04949592012-07-19 12:16:46 -07003132 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3133 return;
3134 }
Dmitry Shmidt8c652892013-03-01 10:14:01 -08003135 if (p2p->go_neg_peer &&
3136 (p2p->go_neg_peer->flags & P2P_DEV_PEER_WAITING_RESPONSE) &&
3137 p2p->go_neg_peer->connect_reqs < 120) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003138 p2p_dbg(p2p, "Peer expected to wait our response - skip listen");
Dmitry Shmidt8c652892013-03-01 10:14:01 -08003139 p2p_connect_send(p2p, p2p->go_neg_peer);
3140 return;
3141 }
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08003142 if (p2p->go_neg_peer && p2p->go_neg_peer->oob_go_neg_freq > 0) {
3143 p2p_dbg(p2p, "Skip connect-listen since GO Neg channel known (OOB)");
3144 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
3145 p2p_set_timeout(p2p, 0, 30000);
3146 return;
3147 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003148 p2p_set_state(p2p, P2P_CONNECT_LISTEN);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08003149 p2p_listen_in_find(p2p, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003150}
3151
3152
3153static void p2p_timeout_connect_listen(struct p2p_data *p2p)
3154{
3155 if (p2p->go_neg_peer) {
3156 if (p2p->drv_in_listen) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003157 p2p_dbg(p2p, "Driver is still in Listen state; wait for it to complete");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003158 return;
3159 }
3160
3161 if (p2p->go_neg_peer->connect_reqs >= 120) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003162 p2p_dbg(p2p, "Timeout on sending GO Negotiation Request without getting response");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003163 p2p_go_neg_failed(p2p, p2p->go_neg_peer, -1);
3164 return;
3165 }
3166
3167 p2p_set_state(p2p, P2P_CONNECT);
3168 p2p_connect_send(p2p, p2p->go_neg_peer);
3169 } else
3170 p2p_set_state(p2p, P2P_IDLE);
3171}
3172
3173
3174static void p2p_timeout_wait_peer_connect(struct p2p_data *p2p)
3175{
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003176 p2p_set_state(p2p, P2P_WAIT_PEER_IDLE);
Dmitry Shmidt18463232014-01-24 12:29:41 -08003177
3178 if (p2p->cfg->is_concurrent_session_active &&
3179 p2p->cfg->is_concurrent_session_active(p2p->cfg->cb_ctx))
3180 p2p_set_timeout(p2p, 0, 500000);
3181 else
3182 p2p_set_timeout(p2p, 0, 200000);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003183}
3184
3185
3186static void p2p_timeout_wait_peer_idle(struct p2p_data *p2p)
3187{
3188 struct p2p_device *dev = p2p->go_neg_peer;
3189
3190 if (dev == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003191 p2p_dbg(p2p, "Unknown GO Neg peer - stop GO Neg wait");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003192 return;
3193 }
3194
3195 dev->wait_count++;
3196 if (dev->wait_count >= 120) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003197 p2p_dbg(p2p, "Timeout on waiting peer to become ready for GO Negotiation");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003198 p2p_go_neg_failed(p2p, dev, -1);
3199 return;
3200 }
3201
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003202 p2p_dbg(p2p, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003203 p2p_set_state(p2p, P2P_WAIT_PEER_CONNECT);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08003204 p2p_listen_in_find(p2p, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003205}
3206
3207
3208static void p2p_timeout_sd_during_find(struct p2p_data *p2p)
3209{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003210 p2p_dbg(p2p, "Service Discovery Query timeout");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003211 if (p2p->sd_peer) {
3212 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003213 p2p->sd_peer = NULL;
3214 }
3215 p2p_continue_find(p2p);
3216}
3217
3218
3219static void p2p_timeout_prov_disc_during_find(struct p2p_data *p2p)
3220{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003221 p2p_dbg(p2p, "Provision Discovery Request timeout");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003222 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3223 p2p_continue_find(p2p);
3224}
3225
3226
Jouni Malinen75ecf522011-06-27 15:19:46 -07003227static void p2p_timeout_prov_disc_req(struct p2p_data *p2p)
3228{
3229 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3230
3231 /*
3232 * For user initiated PD requests that we have not gotten any responses
3233 * for while in IDLE state, we retry them a couple of times before
3234 * giving up.
3235 */
3236 if (!p2p->user_initiated_pd)
3237 return;
3238
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003239 p2p_dbg(p2p, "User initiated Provision Discovery Request timeout");
Jouni Malinen75ecf522011-06-27 15:19:46 -07003240
3241 if (p2p->pd_retries) {
3242 p2p->pd_retries--;
3243 p2p_retry_pd(p2p);
3244 } else {
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08003245 struct p2p_device *dev;
3246 int for_join = 0;
3247
3248 dl_list_for_each(dev, &p2p->devices, struct p2p_device, list) {
3249 if (os_memcmp(p2p->pending_pd_devaddr,
3250 dev->info.p2p_device_addr, ETH_ALEN) != 0)
3251 continue;
3252 if (dev->req_config_methods &&
3253 (dev->flags & P2P_DEV_PD_FOR_JOIN))
3254 for_join = 1;
3255 }
3256
Jouni Malinen75ecf522011-06-27 15:19:46 -07003257 if (p2p->cfg->prov_disc_fail)
3258 p2p->cfg->prov_disc_fail(p2p->cfg->cb_ctx,
3259 p2p->pending_pd_devaddr,
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08003260 for_join ?
3261 P2P_PROV_DISC_TIMEOUT_JOIN :
Jouni Malinen75ecf522011-06-27 15:19:46 -07003262 P2P_PROV_DISC_TIMEOUT);
3263 p2p_reset_pending_pd(p2p);
3264 }
3265}
3266
3267
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003268static void p2p_timeout_invite(struct p2p_data *p2p)
3269{
3270 p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
3271 p2p_set_state(p2p, P2P_INVITE_LISTEN);
3272 if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
3273 /*
3274 * Better remain on operating channel instead of listen channel
3275 * when running a group.
3276 */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003277 p2p_dbg(p2p, "Inviting in active GO role - wait on operating channel");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003278 p2p_set_timeout(p2p, 0, 100000);
3279 return;
3280 }
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08003281 p2p_listen_in_find(p2p, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003282}
3283
3284
3285static void p2p_timeout_invite_listen(struct p2p_data *p2p)
3286{
3287 if (p2p->invite_peer && p2p->invite_peer->invitation_reqs < 100) {
3288 p2p_set_state(p2p, P2P_INVITE);
3289 p2p_invite_send(p2p, p2p->invite_peer,
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08003290 p2p->invite_go_dev_addr, p2p->invite_dev_pw_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003291 } else {
3292 if (p2p->invite_peer) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003293 p2p_dbg(p2p, "Invitation Request retry limit reached");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003294 if (p2p->cfg->invitation_result)
3295 p2p->cfg->invitation_result(
Dmitry Shmidt700a1372013-03-15 14:14:44 -07003296 p2p->cfg->cb_ctx, -1, NULL, NULL,
Dmitry Shmidte0e48dc2013-11-18 12:00:06 -08003297 p2p->invite_peer->info.p2p_device_addr,
3298 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003299 }
3300 p2p_set_state(p2p, P2P_IDLE);
3301 }
3302}
3303
3304
3305static void p2p_state_timeout(void *eloop_ctx, void *timeout_ctx)
3306{
3307 struct p2p_data *p2p = eloop_ctx;
3308
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003309 p2p_dbg(p2p, "Timeout (state=%s)", p2p_state_txt(p2p->state));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003310
3311 p2p->in_listen = 0;
3312
3313 switch (p2p->state) {
3314 case P2P_IDLE:
Jouni Malinen75ecf522011-06-27 15:19:46 -07003315 /* Check if we timed out waiting for PD req */
3316 if (p2p->pending_action_state == P2P_PENDING_PD)
3317 p2p_timeout_prov_disc_req(p2p);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003318 break;
3319 case P2P_SEARCH:
Jouni Malinen75ecf522011-06-27 15:19:46 -07003320 /* Check if we timed out waiting for PD req */
3321 if (p2p->pending_action_state == P2P_PENDING_PD)
3322 p2p_timeout_prov_disc_req(p2p);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003323 if (p2p->search_delay && !p2p->in_search_delay) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003324 p2p_dbg(p2p, "Delay search operation by %u ms",
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003325 p2p->search_delay);
3326 p2p->in_search_delay = 1;
3327 p2p_set_timeout(p2p, p2p->search_delay / 1000,
3328 (p2p->search_delay % 1000) * 1000);
3329 break;
3330 }
3331 p2p->in_search_delay = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003332 p2p_search(p2p);
3333 break;
3334 case P2P_CONNECT:
3335 p2p_timeout_connect(p2p);
3336 break;
3337 case P2P_CONNECT_LISTEN:
3338 p2p_timeout_connect_listen(p2p);
3339 break;
3340 case P2P_GO_NEG:
3341 break;
3342 case P2P_LISTEN_ONLY:
Jouni Malinen75ecf522011-06-27 15:19:46 -07003343 /* Check if we timed out waiting for PD req */
3344 if (p2p->pending_action_state == P2P_PENDING_PD)
3345 p2p_timeout_prov_disc_req(p2p);
3346
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003347 if (p2p->ext_listen_only) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003348 p2p_dbg(p2p, "Extended Listen Timing - Listen State completed");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003349 p2p->ext_listen_only = 0;
3350 p2p_set_state(p2p, P2P_IDLE);
3351 }
3352 break;
3353 case P2P_WAIT_PEER_CONNECT:
3354 p2p_timeout_wait_peer_connect(p2p);
3355 break;
3356 case P2P_WAIT_PEER_IDLE:
3357 p2p_timeout_wait_peer_idle(p2p);
3358 break;
3359 case P2P_SD_DURING_FIND:
3360 p2p_timeout_sd_during_find(p2p);
3361 break;
3362 case P2P_PROVISIONING:
3363 break;
3364 case P2P_PD_DURING_FIND:
3365 p2p_timeout_prov_disc_during_find(p2p);
3366 break;
3367 case P2P_INVITE:
3368 p2p_timeout_invite(p2p);
3369 break;
3370 case P2P_INVITE_LISTEN:
3371 p2p_timeout_invite_listen(p2p);
3372 break;
3373 }
3374}
3375
3376
3377int p2p_reject(struct p2p_data *p2p, const u8 *peer_addr)
3378{
3379 struct p2p_device *dev;
3380
3381 dev = p2p_get_device(p2p, peer_addr);
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003382 p2p_dbg(p2p, "Local request to reject connection attempts by peer "
3383 MACSTR, MAC2STR(peer_addr));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003384 if (dev == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003385 p2p_dbg(p2p, "Peer " MACSTR " unknown", MAC2STR(peer_addr));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003386 return -1;
3387 }
3388 dev->status = P2P_SC_FAIL_REJECTED_BY_USER;
3389 dev->flags |= P2P_DEV_USER_REJECTED;
3390 return 0;
3391}
3392
3393
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003394const char * p2p_wps_method_text(enum p2p_wps_method method)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003395{
3396 switch (method) {
3397 case WPS_NOT_READY:
3398 return "not-ready";
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003399 case WPS_PIN_DISPLAY:
3400 return "Display";
3401 case WPS_PIN_KEYPAD:
3402 return "Keypad";
3403 case WPS_PBC:
3404 return "PBC";
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08003405 case WPS_NFC:
3406 return "NFC";
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003407 }
3408
3409 return "??";
3410}
3411
3412
3413static const char * p2p_go_state_text(enum p2p_go_state go_state)
3414{
3415 switch (go_state) {
3416 case UNKNOWN_GO:
3417 return "unknown";
3418 case LOCAL_GO:
3419 return "local";
3420 case REMOTE_GO:
3421 return "remote";
3422 }
3423
3424 return "??";
3425}
3426
3427
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003428const struct p2p_peer_info * p2p_get_peer_info(struct p2p_data *p2p,
3429 const u8 *addr, int next)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003430{
3431 struct p2p_device *dev;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003432
3433 if (addr)
3434 dev = p2p_get_device(p2p, addr);
3435 else
3436 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
3437
3438 if (dev && next) {
3439 dev = dl_list_first(&dev->list, struct p2p_device, list);
3440 if (&dev->list == &p2p->devices)
3441 dev = NULL;
3442 }
3443
3444 if (dev == NULL)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003445 return NULL;
3446
3447 return &dev->info;
3448}
3449
3450
3451int p2p_get_peer_info_txt(const struct p2p_peer_info *info,
3452 char *buf, size_t buflen)
3453{
3454 struct p2p_device *dev;
3455 int res;
3456 char *pos, *end;
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08003457 struct os_reltime now;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003458
3459 if (info == NULL)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003460 return -1;
3461
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003462 dev = (struct p2p_device *) (((u8 *) info) -
3463 offsetof(struct p2p_device, info));
3464
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003465 pos = buf;
3466 end = buf + buflen;
3467
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08003468 os_get_reltime(&now);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003469 res = os_snprintf(pos, end - pos,
3470 "age=%d\n"
3471 "listen_freq=%d\n"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003472 "wps_method=%s\n"
3473 "interface_addr=" MACSTR "\n"
3474 "member_in_go_dev=" MACSTR "\n"
3475 "member_in_go_iface=" MACSTR "\n"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003476 "go_neg_req_sent=%d\n"
3477 "go_state=%s\n"
3478 "dialog_token=%u\n"
3479 "intended_addr=" MACSTR "\n"
3480 "country=%c%c\n"
3481 "oper_freq=%d\n"
3482 "req_config_methods=0x%x\n"
Dmitry Shmidt13ca8d82014-02-20 10:18:40 -08003483 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003484 "status=%d\n"
3485 "wait_count=%u\n"
3486 "invitation_reqs=%u\n",
3487 (int) (now.sec - dev->last_seen.sec),
3488 dev->listen_freq,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003489 p2p_wps_method_text(dev->wps_method),
3490 MAC2STR(dev->interface_addr),
3491 MAC2STR(dev->member_in_go_dev),
3492 MAC2STR(dev->member_in_go_iface),
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003493 dev->go_neg_req_sent,
3494 p2p_go_state_text(dev->go_state),
3495 dev->dialog_token,
3496 MAC2STR(dev->intended_addr),
3497 dev->country[0] ? dev->country[0] : '_',
3498 dev->country[1] ? dev->country[1] : '_',
3499 dev->oper_freq,
3500 dev->req_config_methods,
3501 dev->flags & P2P_DEV_PROBE_REQ_ONLY ?
3502 "[PROBE_REQ_ONLY]" : "",
3503 dev->flags & P2P_DEV_REPORTED ? "[REPORTED]" : "",
3504 dev->flags & P2P_DEV_NOT_YET_READY ?
3505 "[NOT_YET_READY]" : "",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003506 dev->flags & P2P_DEV_PD_PEER_DISPLAY ?
3507 "[PD_PEER_DISPLAY]" : "",
3508 dev->flags & P2P_DEV_PD_PEER_KEYPAD ?
3509 "[PD_PEER_KEYPAD]" : "",
3510 dev->flags & P2P_DEV_USER_REJECTED ?
3511 "[USER_REJECTED]" : "",
3512 dev->flags & P2P_DEV_PEER_WAITING_RESPONSE ?
3513 "[PEER_WAITING_RESPONSE]" : "",
3514 dev->flags & P2P_DEV_PREFER_PERSISTENT_GROUP ?
3515 "[PREFER_PERSISTENT_GROUP]" : "",
3516 dev->flags & P2P_DEV_WAIT_GO_NEG_RESPONSE ?
3517 "[WAIT_GO_NEG_RESPONSE]" : "",
3518 dev->flags & P2P_DEV_WAIT_GO_NEG_CONFIRM ?
3519 "[WAIT_GO_NEG_CONFIRM]" : "",
3520 dev->flags & P2P_DEV_GROUP_CLIENT_ONLY ?
3521 "[GROUP_CLIENT_ONLY]" : "",
3522 dev->flags & P2P_DEV_FORCE_FREQ ?
3523 "[FORCE_FREQ]" : "",
3524 dev->flags & P2P_DEV_PD_FOR_JOIN ?
3525 "[PD_FOR_JOIN]" : "",
3526 dev->status,
3527 dev->wait_count,
3528 dev->invitation_reqs);
3529 if (res < 0 || res >= end - pos)
3530 return pos - buf;
3531 pos += res;
3532
3533 if (dev->ext_listen_period) {
3534 res = os_snprintf(pos, end - pos,
3535 "ext_listen_period=%u\n"
3536 "ext_listen_interval=%u\n",
3537 dev->ext_listen_period,
3538 dev->ext_listen_interval);
3539 if (res < 0 || res >= end - pos)
3540 return pos - buf;
3541 pos += res;
3542 }
3543
3544 if (dev->oper_ssid_len) {
3545 res = os_snprintf(pos, end - pos,
3546 "oper_ssid=%s\n",
3547 wpa_ssid_txt(dev->oper_ssid,
3548 dev->oper_ssid_len));
3549 if (res < 0 || res >= end - pos)
3550 return pos - buf;
3551 pos += res;
3552 }
3553
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003554#ifdef CONFIG_WIFI_DISPLAY
3555 if (dev->info.wfd_subelems) {
3556 res = os_snprintf(pos, end - pos, "wfd_subelems=");
3557 if (res < 0 || res >= end - pos)
3558 return pos - buf;
3559 pos += res;
3560
3561 pos += wpa_snprintf_hex(pos, end - pos,
3562 wpabuf_head(dev->info.wfd_subelems),
3563 wpabuf_len(dev->info.wfd_subelems));
3564
3565 res = os_snprintf(pos, end - pos, "\n");
3566 if (res < 0 || res >= end - pos)
3567 return pos - buf;
3568 pos += res;
3569 }
3570#endif /* CONFIG_WIFI_DISPLAY */
3571
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003572 return pos - buf;
3573}
3574
3575
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003576int p2p_peer_known(struct p2p_data *p2p, const u8 *addr)
3577{
3578 return p2p_get_device(p2p, addr) != NULL;
3579}
3580
3581
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003582void p2p_set_client_discoverability(struct p2p_data *p2p, int enabled)
3583{
3584 if (enabled) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003585 p2p_dbg(p2p, "Client discoverability enabled");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003586 p2p->dev_capab |= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3587 } else {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003588 p2p_dbg(p2p, "Client discoverability disabled");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003589 p2p->dev_capab &= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
3590 }
3591}
3592
3593
3594static struct wpabuf * p2p_build_presence_req(u32 duration1, u32 interval1,
3595 u32 duration2, u32 interval2)
3596{
3597 struct wpabuf *req;
3598 struct p2p_noa_desc desc1, desc2, *ptr1 = NULL, *ptr2 = NULL;
3599 u8 *len;
3600
3601 req = wpabuf_alloc(100);
3602 if (req == NULL)
3603 return NULL;
3604
3605 if (duration1 || interval1) {
3606 os_memset(&desc1, 0, sizeof(desc1));
3607 desc1.count_type = 1;
3608 desc1.duration = duration1;
3609 desc1.interval = interval1;
3610 ptr1 = &desc1;
3611
3612 if (duration2 || interval2) {
3613 os_memset(&desc2, 0, sizeof(desc2));
3614 desc2.count_type = 2;
3615 desc2.duration = duration2;
3616 desc2.interval = interval2;
3617 ptr2 = &desc2;
3618 }
3619 }
3620
3621 p2p_buf_add_action_hdr(req, P2P_PRESENCE_REQ, 1);
3622 len = p2p_buf_add_ie_hdr(req);
3623 p2p_buf_add_noa(req, 0, 0, 0, ptr1, ptr2);
3624 p2p_buf_update_ie_hdr(req, len);
3625
3626 return req;
3627}
3628
3629
3630int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
3631 const u8 *own_interface_addr, unsigned int freq,
3632 u32 duration1, u32 interval1, u32 duration2,
3633 u32 interval2)
3634{
3635 struct wpabuf *req;
3636
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003637 p2p_dbg(p2p, "Send Presence Request to GO " MACSTR
3638 " (own interface " MACSTR ") freq=%u dur1=%u int1=%u "
3639 "dur2=%u int2=%u",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003640 MAC2STR(go_interface_addr), MAC2STR(own_interface_addr),
3641 freq, duration1, interval1, duration2, interval2);
3642
3643 req = p2p_build_presence_req(duration1, interval1, duration2,
3644 interval2);
3645 if (req == NULL)
3646 return -1;
3647
3648 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3649 if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
3650 go_interface_addr,
3651 wpabuf_head(req), wpabuf_len(req), 200) < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003652 p2p_dbg(p2p, "Failed to send Action frame");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003653 }
3654 wpabuf_free(req);
3655
3656 return 0;
3657}
3658
3659
3660static struct wpabuf * p2p_build_presence_resp(u8 status, const u8 *noa,
3661 size_t noa_len, u8 dialog_token)
3662{
3663 struct wpabuf *resp;
3664 u8 *len;
3665
3666 resp = wpabuf_alloc(100 + noa_len);
3667 if (resp == NULL)
3668 return NULL;
3669
3670 p2p_buf_add_action_hdr(resp, P2P_PRESENCE_RESP, dialog_token);
3671 len = p2p_buf_add_ie_hdr(resp);
3672 p2p_buf_add_status(resp, status);
3673 if (noa) {
3674 wpabuf_put_u8(resp, P2P_ATTR_NOTICE_OF_ABSENCE);
3675 wpabuf_put_le16(resp, noa_len);
3676 wpabuf_put_data(resp, noa, noa_len);
3677 } else
3678 p2p_buf_add_noa(resp, 0, 0, 0, NULL, NULL);
3679 p2p_buf_update_ie_hdr(resp, len);
3680
3681 return resp;
3682}
3683
3684
3685static void p2p_process_presence_req(struct p2p_data *p2p, const u8 *da,
3686 const u8 *sa, const u8 *data, size_t len,
3687 int rx_freq)
3688{
3689 struct p2p_message msg;
3690 u8 status;
3691 struct wpabuf *resp;
3692 size_t g;
3693 struct p2p_group *group = NULL;
3694 int parsed = 0;
3695 u8 noa[50];
3696 int noa_len;
3697
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003698 p2p_dbg(p2p, "Received P2P Action - P2P Presence Request");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003699
3700 for (g = 0; g < p2p->num_groups; g++) {
3701 if (os_memcmp(da, p2p_group_get_interface_addr(p2p->groups[g]),
3702 ETH_ALEN) == 0) {
3703 group = p2p->groups[g];
3704 break;
3705 }
3706 }
3707 if (group == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003708 p2p_dbg(p2p, "Ignore P2P Presence Request for unknown group "
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003709 MACSTR, MAC2STR(da));
3710 return;
3711 }
3712
3713 if (p2p_parse(data, len, &msg) < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003714 p2p_dbg(p2p, "Failed to parse P2P Presence Request");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003715 status = P2P_SC_FAIL_INVALID_PARAMS;
3716 goto fail;
3717 }
3718 parsed = 1;
3719
3720 if (msg.noa == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003721 p2p_dbg(p2p, "No NoA attribute in P2P Presence Request");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003722 status = P2P_SC_FAIL_INVALID_PARAMS;
3723 goto fail;
3724 }
3725
3726 status = p2p_group_presence_req(group, sa, msg.noa, msg.noa_len);
3727
3728fail:
3729 if (p2p->cfg->get_noa)
3730 noa_len = p2p->cfg->get_noa(p2p->cfg->cb_ctx, da, noa,
3731 sizeof(noa));
3732 else
3733 noa_len = -1;
3734 resp = p2p_build_presence_resp(status, noa_len > 0 ? noa : NULL,
3735 noa_len > 0 ? noa_len : 0,
3736 msg.dialog_token);
3737 if (parsed)
3738 p2p_parse_free(&msg);
3739 if (resp == NULL)
3740 return;
3741
3742 p2p->pending_action_state = P2P_NO_PENDING_ACTION;
3743 if (p2p_send_action(p2p, rx_freq, sa, da, da,
3744 wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003745 p2p_dbg(p2p, "Failed to send Action frame");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003746 }
3747 wpabuf_free(resp);
3748}
3749
3750
3751static void p2p_process_presence_resp(struct p2p_data *p2p, const u8 *da,
3752 const u8 *sa, const u8 *data, size_t len)
3753{
3754 struct p2p_message msg;
3755
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003756 p2p_dbg(p2p, "Received P2P Action - P2P Presence Response");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003757
3758 if (p2p_parse(data, len, &msg) < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003759 p2p_dbg(p2p, "Failed to parse P2P Presence Response");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003760 return;
3761 }
3762
3763 if (msg.status == NULL || msg.noa == NULL) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003764 p2p_dbg(p2p, "No Status or NoA attribute in P2P Presence Response");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003765 p2p_parse_free(&msg);
3766 return;
3767 }
3768
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08003769 if (p2p->cfg->presence_resp) {
3770 p2p->cfg->presence_resp(p2p->cfg->cb_ctx, sa, *msg.status,
3771 msg.noa, msg.noa_len);
3772 }
3773
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003774 if (*msg.status) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003775 p2p_dbg(p2p, "P2P Presence Request was rejected: status %u",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003776 *msg.status);
3777 p2p_parse_free(&msg);
3778 return;
3779 }
3780
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003781 p2p_dbg(p2p, "P2P Presence Request was accepted");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003782 wpa_hexdump(MSG_DEBUG, "P2P: P2P Presence Response - NoA",
3783 msg.noa, msg.noa_len);
3784 /* TODO: process NoA */
3785 p2p_parse_free(&msg);
3786}
3787
3788
3789static void p2p_ext_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3790{
3791 struct p2p_data *p2p = eloop_ctx;
3792
3793 if (p2p->ext_listen_interval) {
3794 /* Schedule next extended listen timeout */
3795 eloop_register_timeout(p2p->ext_listen_interval_sec,
3796 p2p->ext_listen_interval_usec,
3797 p2p_ext_listen_timeout, p2p, NULL);
3798 }
3799
3800 if (p2p->state == P2P_LISTEN_ONLY && p2p->ext_listen_only) {
3801 /*
3802 * This should not really happen, but it looks like the Listen
3803 * command may fail is something else (e.g., a scan) was
3804 * running at an inconvenient time. As a workaround, allow new
3805 * Extended Listen operation to be started.
3806 */
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003807 p2p_dbg(p2p, "Previous Extended Listen operation had not been completed - try again");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003808 p2p->ext_listen_only = 0;
3809 p2p_set_state(p2p, P2P_IDLE);
3810 }
3811
3812 if (p2p->state != P2P_IDLE) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003813 p2p_dbg(p2p, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p->state));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003814 return;
3815 }
3816
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003817 p2p_dbg(p2p, "Extended Listen timeout");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003818 p2p->ext_listen_only = 1;
3819 if (p2p_listen(p2p, p2p->ext_listen_period) < 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003820 p2p_dbg(p2p, "Failed to start Listen state for Extended Listen Timing");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003821 p2p->ext_listen_only = 0;
3822 }
3823}
3824
3825
3826int p2p_ext_listen(struct p2p_data *p2p, unsigned int period,
3827 unsigned int interval)
3828{
3829 if (period > 65535 || interval > 65535 || period > interval ||
3830 (period == 0 && interval > 0) || (period > 0 && interval == 0)) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003831 p2p_dbg(p2p, "Invalid Extended Listen Timing request: period=%u interval=%u",
3832 period, interval);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003833 return -1;
3834 }
3835
3836 eloop_cancel_timeout(p2p_ext_listen_timeout, p2p, NULL);
3837
3838 if (interval == 0) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003839 p2p_dbg(p2p, "Disabling Extended Listen Timing");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003840 p2p->ext_listen_period = 0;
3841 p2p->ext_listen_interval = 0;
3842 return 0;
3843 }
3844
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003845 p2p_dbg(p2p, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
3846 period, interval);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003847 p2p->ext_listen_period = period;
3848 p2p->ext_listen_interval = interval;
3849 p2p->ext_listen_interval_sec = interval / 1000;
3850 p2p->ext_listen_interval_usec = (interval % 1000) * 1000;
3851
3852 eloop_register_timeout(p2p->ext_listen_interval_sec,
3853 p2p->ext_listen_interval_usec,
3854 p2p_ext_listen_timeout, p2p, NULL);
3855
3856 return 0;
3857}
3858
3859
3860void p2p_deauth_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3861 const u8 *ie, size_t ie_len)
3862{
3863 struct p2p_message msg;
3864
3865 if (bssid == NULL || ie == NULL)
3866 return;
3867
3868 os_memset(&msg, 0, sizeof(msg));
3869 if (p2p_parse_ies(ie, ie_len, &msg))
3870 return;
Dmitry Shmidt97672262014-02-03 13:02:54 -08003871 if (msg.minor_reason_code == NULL) {
3872 p2p_parse_free(&msg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003873 return;
Dmitry Shmidt97672262014-02-03 13:02:54 -08003874 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003875
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003876 p2p_dbg(p2p, "Deauthentication notification BSSID " MACSTR
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003877 " reason_code=%u minor_reason_code=%u",
3878 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3879
3880 p2p_parse_free(&msg);
3881}
3882
3883
3884void p2p_disassoc_notif(struct p2p_data *p2p, const u8 *bssid, u16 reason_code,
3885 const u8 *ie, size_t ie_len)
3886{
3887 struct p2p_message msg;
3888
3889 if (bssid == NULL || ie == NULL)
3890 return;
3891
3892 os_memset(&msg, 0, sizeof(msg));
3893 if (p2p_parse_ies(ie, ie_len, &msg))
3894 return;
Dmitry Shmidt97672262014-02-03 13:02:54 -08003895 if (msg.minor_reason_code == NULL) {
3896 p2p_parse_free(&msg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003897 return;
Dmitry Shmidt97672262014-02-03 13:02:54 -08003898 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003899
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003900 p2p_dbg(p2p, "Disassociation notification BSSID " MACSTR
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003901 " reason_code=%u minor_reason_code=%u",
3902 MAC2STR(bssid), reason_code, *msg.minor_reason_code);
3903
3904 p2p_parse_free(&msg);
3905}
3906
3907
3908void p2p_set_managed_oper(struct p2p_data *p2p, int enabled)
3909{
3910 if (enabled) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003911 p2p_dbg(p2p, "Managed P2P Device operations enabled");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003912 p2p->dev_capab |= P2P_DEV_CAPAB_INFRA_MANAGED;
3913 } else {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003914 p2p_dbg(p2p, "Managed P2P Device operations disabled");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003915 p2p->dev_capab &= ~P2P_DEV_CAPAB_INFRA_MANAGED;
3916 }
3917}
3918
3919
3920int p2p_set_listen_channel(struct p2p_data *p2p, u8 reg_class, u8 channel)
3921{
Dmitry Shmidt4b060592013-04-29 16:42:49 -07003922 if (p2p_channel_to_freq(reg_class, channel) < 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003923 return -1;
3924
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003925 p2p_dbg(p2p, "Set Listen channel: reg_class %u channel %u",
3926 reg_class, channel);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003927 p2p->cfg->reg_class = reg_class;
3928 p2p->cfg->channel = channel;
3929
3930 return 0;
3931}
3932
3933
3934int p2p_set_ssid_postfix(struct p2p_data *p2p, const u8 *postfix, size_t len)
3935{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003936 p2p_dbg(p2p, "New SSID postfix: %s", wpa_ssid_txt(postfix, len));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003937 if (postfix == NULL) {
3938 p2p->cfg->ssid_postfix_len = 0;
3939 return 0;
3940 }
3941 if (len > sizeof(p2p->cfg->ssid_postfix))
3942 return -1;
3943 os_memcpy(p2p->cfg->ssid_postfix, postfix, len);
3944 p2p->cfg->ssid_postfix_len = len;
3945 return 0;
3946}
3947
3948
Jouni Malinen75ecf522011-06-27 15:19:46 -07003949int p2p_set_oper_channel(struct p2p_data *p2p, u8 op_reg_class, u8 op_channel,
3950 int cfg_op_channel)
3951{
Dmitry Shmidt4b060592013-04-29 16:42:49 -07003952 if (p2p_channel_to_freq(op_reg_class, op_channel) < 0)
Jouni Malinen75ecf522011-06-27 15:19:46 -07003953 return -1;
3954
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07003955 p2p_dbg(p2p, "Set Operating channel: reg_class %u channel %u",
3956 op_reg_class, op_channel);
Jouni Malinen75ecf522011-06-27 15:19:46 -07003957 p2p->cfg->op_reg_class = op_reg_class;
3958 p2p->cfg->op_channel = op_channel;
3959 p2p->cfg->cfg_op_channel = cfg_op_channel;
3960 return 0;
3961}
3962
3963
Dmitry Shmidt04949592012-07-19 12:16:46 -07003964int p2p_set_pref_chan(struct p2p_data *p2p, unsigned int num_pref_chan,
3965 const struct p2p_channel *pref_chan)
3966{
3967 struct p2p_channel *n;
3968
3969 if (pref_chan) {
3970 n = os_malloc(num_pref_chan * sizeof(struct p2p_channel));
3971 if (n == NULL)
3972 return -1;
3973 os_memcpy(n, pref_chan,
3974 num_pref_chan * sizeof(struct p2p_channel));
3975 } else
3976 n = NULL;
3977
3978 os_free(p2p->cfg->pref_chan);
3979 p2p->cfg->pref_chan = n;
3980 p2p->cfg->num_pref_chan = num_pref_chan;
3981
3982 return 0;
3983}
3984
3985
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07003986int p2p_set_no_go_freq(struct p2p_data *p2p,
3987 const struct wpa_freq_range_list *list)
3988{
3989 struct wpa_freq_range *tmp;
3990
3991 if (list == NULL || list->num == 0) {
3992 os_free(p2p->no_go_freq.range);
3993 p2p->no_go_freq.range = NULL;
3994 p2p->no_go_freq.num = 0;
3995 return 0;
3996 }
3997
3998 tmp = os_calloc(list->num, sizeof(struct wpa_freq_range));
3999 if (tmp == NULL)
4000 return -1;
4001 os_memcpy(tmp, list->range, list->num * sizeof(struct wpa_freq_range));
4002 os_free(p2p->no_go_freq.range);
4003 p2p->no_go_freq.range = tmp;
4004 p2p->no_go_freq.num = list->num;
4005 p2p_dbg(p2p, "Updated no GO chan list");
4006
4007 return 0;
4008}
4009
4010
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004011int p2p_get_interface_addr(struct p2p_data *p2p, const u8 *dev_addr,
4012 u8 *iface_addr)
4013{
4014 struct p2p_device *dev = p2p_get_device(p2p, dev_addr);
4015 if (dev == NULL || is_zero_ether_addr(dev->interface_addr))
4016 return -1;
4017 os_memcpy(iface_addr, dev->interface_addr, ETH_ALEN);
4018 return 0;
4019}
4020
4021
4022int p2p_get_dev_addr(struct p2p_data *p2p, const u8 *iface_addr,
4023 u8 *dev_addr)
4024{
4025 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4026 if (dev == NULL)
4027 return -1;
4028 os_memcpy(dev_addr, dev->info.p2p_device_addr, ETH_ALEN);
4029 return 0;
4030}
4031
4032
4033void p2p_set_peer_filter(struct p2p_data *p2p, const u8 *addr)
4034{
4035 os_memcpy(p2p->peer_filter, addr, ETH_ALEN);
4036 if (is_zero_ether_addr(p2p->peer_filter))
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004037 p2p_dbg(p2p, "Disable peer filter");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004038 else
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004039 p2p_dbg(p2p, "Enable peer filter for " MACSTR,
4040 MAC2STR(p2p->peer_filter));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004041}
4042
4043
4044void p2p_set_cross_connect(struct p2p_data *p2p, int enabled)
4045{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004046 p2p_dbg(p2p, "Cross connection %s", enabled ? "enabled" : "disabled");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004047 if (p2p->cross_connect == enabled)
4048 return;
4049 p2p->cross_connect = enabled;
4050 /* TODO: may need to tear down any action group where we are GO(?) */
4051}
4052
4053
4054int p2p_get_oper_freq(struct p2p_data *p2p, const u8 *iface_addr)
4055{
4056 struct p2p_device *dev = p2p_get_device_interface(p2p, iface_addr);
4057 if (dev == NULL)
4058 return -1;
4059 if (dev->oper_freq <= 0)
4060 return -1;
4061 return dev->oper_freq;
4062}
4063
4064
4065void p2p_set_intra_bss_dist(struct p2p_data *p2p, int enabled)
4066{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004067 p2p_dbg(p2p, "Intra BSS distribution %s",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004068 enabled ? "enabled" : "disabled");
4069 p2p->cfg->p2p_intra_bss = enabled;
4070}
4071
4072
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07004073void p2p_update_channel_list(struct p2p_data *p2p,
4074 const struct p2p_channels *chan,
4075 const struct p2p_channels *cli_chan)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004076{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004077 p2p_dbg(p2p, "Update channel list");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004078 os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
Dmitry Shmidt68d0e3e2013-10-28 17:59:21 -07004079 p2p_channels_dump(p2p, "channels", &p2p->cfg->channels);
4080 os_memcpy(&p2p->cfg->cli_channels, cli_chan,
4081 sizeof(struct p2p_channels));
4082 p2p_channels_dump(p2p, "cli_channels", &p2p->cfg->cli_channels);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004083}
4084
4085
4086int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
4087 const u8 *src, const u8 *bssid, const u8 *buf,
4088 size_t len, unsigned int wait_time)
4089{
4090 if (p2p->p2p_scan_running) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004091 p2p_dbg(p2p, "Delay Action frame TX until p2p_scan completes");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004092 if (p2p->after_scan_tx) {
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004093 p2p_dbg(p2p, "Dropped previous pending Action frame TX");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004094 os_free(p2p->after_scan_tx);
4095 }
4096 p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
4097 len);
4098 if (p2p->after_scan_tx == NULL)
4099 return -1;
4100 p2p->after_scan_tx->freq = freq;
4101 os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
4102 os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
4103 os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
4104 p2p->after_scan_tx->len = len;
4105 p2p->after_scan_tx->wait_time = wait_time;
4106 os_memcpy(p2p->after_scan_tx + 1, buf, len);
4107 return 0;
4108 }
4109
4110 return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
4111 buf, len, wait_time);
4112}
4113
4114
4115void p2p_set_best_channels(struct p2p_data *p2p, int freq_24, int freq_5,
4116 int freq_overall)
4117{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004118 p2p_dbg(p2p, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4119 freq_24, freq_5, freq_overall);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004120 p2p->best_freq_24 = freq_24;
4121 p2p->best_freq_5 = freq_5;
4122 p2p->best_freq_overall = freq_overall;
4123}
4124
4125
Dmitry Shmidt700a1372013-03-15 14:14:44 -07004126void p2p_set_own_freq_preference(struct p2p_data *p2p, int freq)
4127{
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004128 p2p_dbg(p2p, "Own frequency preference: %d MHz", freq);
Dmitry Shmidt700a1372013-03-15 14:14:44 -07004129 p2p->own_freq_preference = freq;
4130}
4131
4132
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004133const u8 * p2p_get_go_neg_peer(struct p2p_data *p2p)
4134{
4135 if (p2p == NULL || p2p->go_neg_peer == NULL)
4136 return NULL;
4137 return p2p->go_neg_peer->info.p2p_device_addr;
4138}
4139
4140
4141const struct p2p_peer_info *
4142p2p_get_peer_found(struct p2p_data *p2p, const u8 *addr, int next)
4143{
4144 struct p2p_device *dev;
4145
4146 if (addr) {
4147 dev = p2p_get_device(p2p, addr);
4148 if (!dev)
4149 return NULL;
4150
4151 if (!next) {
4152 if (dev->flags & P2P_DEV_PROBE_REQ_ONLY)
4153 return NULL;
4154
4155 return &dev->info;
4156 } else {
4157 do {
4158 dev = dl_list_first(&dev->list,
4159 struct p2p_device,
4160 list);
4161 if (&dev->list == &p2p->devices)
4162 return NULL;
4163 } while (dev->flags & P2P_DEV_PROBE_REQ_ONLY);
4164 }
4165 } else {
4166 dev = dl_list_first(&p2p->devices, struct p2p_device, list);
4167 if (!dev)
4168 return NULL;
4169 while (dev->flags & P2P_DEV_PROBE_REQ_ONLY) {
4170 dev = dl_list_first(&dev->list,
4171 struct p2p_device,
4172 list);
4173 if (&dev->list == &p2p->devices)
4174 return NULL;
4175 }
4176 }
4177
4178 return &dev->info;
4179}
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004180
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004181
4182int p2p_in_progress(struct p2p_data *p2p)
4183{
4184 if (p2p == NULL)
4185 return 0;
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08004186 if (p2p->state == P2P_SEARCH)
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07004187 return 2;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004188 return p2p->state != P2P_IDLE && p2p->state != P2P_PROVISIONING;
4189}
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07004190
4191
4192void p2p_set_config_timeout(struct p2p_data *p2p, u8 go_timeout,
4193 u8 client_timeout)
4194{
4195 if (p2p) {
4196 p2p->go_timeout = go_timeout;
4197 p2p->client_timeout = client_timeout;
4198 }
4199}
4200
4201
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07004202#ifdef CONFIG_WIFI_DISPLAY
4203
4204static void p2p_update_wfd_ie_groups(struct p2p_data *p2p)
4205{
4206 size_t g;
4207 struct p2p_group *group;
4208
4209 for (g = 0; g < p2p->num_groups; g++) {
4210 group = p2p->groups[g];
Dmitry Shmidtb96dad42013-11-05 10:07:29 -08004211 p2p_group_force_beacon_update_ies(group);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07004212 }
4213}
4214
4215
4216int p2p_set_wfd_ie_beacon(struct p2p_data *p2p, struct wpabuf *ie)
4217{
4218 wpabuf_free(p2p->wfd_ie_beacon);
4219 p2p->wfd_ie_beacon = ie;
4220 p2p_update_wfd_ie_groups(p2p);
4221 return 0;
4222}
4223
4224
4225int p2p_set_wfd_ie_probe_req(struct p2p_data *p2p, struct wpabuf *ie)
4226{
4227 wpabuf_free(p2p->wfd_ie_probe_req);
4228 p2p->wfd_ie_probe_req = ie;
4229 return 0;
4230}
4231
4232
4233int p2p_set_wfd_ie_probe_resp(struct p2p_data *p2p, struct wpabuf *ie)
4234{
4235 wpabuf_free(p2p->wfd_ie_probe_resp);
4236 p2p->wfd_ie_probe_resp = ie;
4237 p2p_update_wfd_ie_groups(p2p);
4238 return 0;
4239}
4240
4241
4242int p2p_set_wfd_ie_assoc_req(struct p2p_data *p2p, struct wpabuf *ie)
4243{
4244 wpabuf_free(p2p->wfd_ie_assoc_req);
4245 p2p->wfd_ie_assoc_req = ie;
4246 return 0;
4247}
4248
4249
4250int p2p_set_wfd_ie_invitation(struct p2p_data *p2p, struct wpabuf *ie)
4251{
4252 wpabuf_free(p2p->wfd_ie_invitation);
4253 p2p->wfd_ie_invitation = ie;
4254 return 0;
4255}
4256
4257
4258int p2p_set_wfd_ie_prov_disc_req(struct p2p_data *p2p, struct wpabuf *ie)
4259{
4260 wpabuf_free(p2p->wfd_ie_prov_disc_req);
4261 p2p->wfd_ie_prov_disc_req = ie;
4262 return 0;
4263}
4264
4265
4266int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data *p2p, struct wpabuf *ie)
4267{
4268 wpabuf_free(p2p->wfd_ie_prov_disc_resp);
4269 p2p->wfd_ie_prov_disc_resp = ie;
4270 return 0;
4271}
4272
4273
4274int p2p_set_wfd_ie_go_neg(struct p2p_data *p2p, struct wpabuf *ie)
4275{
4276 wpabuf_free(p2p->wfd_ie_go_neg);
4277 p2p->wfd_ie_go_neg = ie;
4278 return 0;
4279}
4280
4281
4282int p2p_set_wfd_dev_info(struct p2p_data *p2p, const struct wpabuf *elem)
4283{
4284 wpabuf_free(p2p->wfd_dev_info);
4285 if (elem) {
4286 p2p->wfd_dev_info = wpabuf_dup(elem);
4287 if (p2p->wfd_dev_info == NULL)
4288 return -1;
4289 } else
4290 p2p->wfd_dev_info = NULL;
4291
4292 return 0;
4293}
4294
4295
4296int p2p_set_wfd_assoc_bssid(struct p2p_data *p2p, const struct wpabuf *elem)
4297{
4298 wpabuf_free(p2p->wfd_assoc_bssid);
4299 if (elem) {
4300 p2p->wfd_assoc_bssid = wpabuf_dup(elem);
4301 if (p2p->wfd_assoc_bssid == NULL)
4302 return -1;
4303 } else
4304 p2p->wfd_assoc_bssid = NULL;
4305
4306 return 0;
4307}
4308
4309
4310int p2p_set_wfd_coupled_sink_info(struct p2p_data *p2p,
4311 const struct wpabuf *elem)
4312{
4313 wpabuf_free(p2p->wfd_coupled_sink_info);
4314 if (elem) {
4315 p2p->wfd_coupled_sink_info = wpabuf_dup(elem);
4316 if (p2p->wfd_coupled_sink_info == NULL)
4317 return -1;
4318 } else
4319 p2p->wfd_coupled_sink_info = NULL;
4320
4321 return 0;
4322}
4323
4324#endif /* CONFIG_WIFI_DISPLAY */
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08004325
4326
4327int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
4328 int max_disc_tu)
4329{
4330 if (min_disc_int > max_disc_int || min_disc_int < 0 || max_disc_int < 0)
4331 return -1;
4332
4333 p2p->min_disc_int = min_disc_int;
4334 p2p->max_disc_int = max_disc_int;
4335 p2p->max_disc_tu = max_disc_tu;
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004336 p2p_dbg(p2p, "Set discoverable interval: min=%d max=%d max_tu=%d",
4337 min_disc_int, max_disc_int, max_disc_tu);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08004338
4339 return 0;
4340}
Dmitry Shmidtb6e9aaf2013-05-20 14:49:44 -07004341
4342
4343void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
4344{
4345 va_list ap;
4346 char buf[500];
4347
4348 if (!p2p->cfg->debug_print)
4349 return;
4350
4351 va_start(ap, fmt);
4352 vsnprintf(buf, sizeof(buf), fmt, ap);
4353 buf[sizeof(buf) - 1] = '\0';
4354 va_end(ap);
4355 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_DEBUG, buf);
4356}
4357
4358
4359void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
4360{
4361 va_list ap;
4362 char buf[500];
4363
4364 if (!p2p->cfg->debug_print)
4365 return;
4366
4367 va_start(ap, fmt);
4368 vsnprintf(buf, sizeof(buf), fmt, ap);
4369 buf[sizeof(buf) - 1] = '\0';
4370 va_end(ap);
4371 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_INFO, buf);
4372}
4373
4374
4375void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
4376{
4377 va_list ap;
4378 char buf[500];
4379
4380 if (!p2p->cfg->debug_print)
4381 return;
4382
4383 va_start(ap, fmt);
4384 vsnprintf(buf, sizeof(buf), fmt, ap);
4385 buf[sizeof(buf) - 1] = '\0';
4386 va_end(ap);
4387 p2p->cfg->debug_print(p2p->cfg->cb_ctx, MSG_ERROR, buf);
4388}
Dmitry Shmidtcf32e602014-01-28 10:57:39 -08004389
4390
4391#ifdef CONFIG_WPS_NFC
4392
4393static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
4394 int client_freq,
4395 const u8 *go_dev_addr,
4396 const u8 *ssid, size_t ssid_len)
4397{
4398 struct wpabuf *buf;
4399 u8 op_class, channel;
4400 enum p2p_role_indication role = P2P_DEVICE_NOT_IN_GROUP;
4401
4402 buf = wpabuf_alloc(1000);
4403 if (buf == NULL)
4404 return NULL;
4405
4406 op_class = p2p->cfg->reg_class;
4407 channel = p2p->cfg->channel;
4408
4409 p2p_buf_add_capability(buf, p2p->dev_capab &
4410 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
4411 p2p_buf_add_device_info(buf, p2p, NULL);
4412
4413 if (p2p->num_groups > 0) {
4414 role = P2P_GO_IN_A_GROUP;
4415 p2p_freq_to_channel(p2p_group_get_freq(p2p->groups[0]),
4416 &op_class, &channel);
4417 } else if (client_freq > 0) {
4418 role = P2P_CLIENT_IN_A_GROUP;
4419 p2p_freq_to_channel(client_freq, &op_class, &channel);
4420 }
4421
4422 p2p_buf_add_oob_go_neg_channel(buf, p2p->cfg->country, op_class,
4423 channel, role);
4424
4425 if (p2p->num_groups > 0) {
4426 /* Limit number of clients to avoid very long message */
4427 p2p_buf_add_group_info(p2p->groups[0], buf, 5);
4428 p2p_group_buf_add_id(p2p->groups[0], buf);
4429 } else if (client_freq > 0 &&
4430 go_dev_addr && !is_zero_ether_addr(go_dev_addr) &&
4431 ssid && ssid_len > 0) {
4432 /*
4433 * Add the optional P2P Group ID to indicate in which group this
4434 * device is a P2P Client.
4435 */
4436 p2p_buf_add_group_id(buf, go_dev_addr, ssid, ssid_len);
4437 }
4438
4439 return buf;
4440}
4441
4442
4443struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
4444 int client_freq,
4445 const u8 *go_dev_addr,
4446 const u8 *ssid, size_t ssid_len)
4447{
4448 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
4449 ssid_len);
4450}
4451
4452
4453struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
4454 int client_freq,
4455 const u8 *go_dev_addr,
4456 const u8 *ssid, size_t ssid_len)
4457{
4458 return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
4459 ssid_len);
4460}
4461
4462
4463int p2p_process_nfc_connection_handover(struct p2p_data *p2p,
4464 struct p2p_nfc_params *params)
4465{
4466 struct p2p_message msg;
4467 struct p2p_device *dev;
4468 const u8 *p2p_dev_addr;
4469 int freq;
4470 enum p2p_role_indication role;
4471
4472 params->next_step = NO_ACTION;
4473
4474 if (p2p_parse_ies_separate(params->wsc_attr, params->wsc_len,
4475 params->p2p_attr, params->p2p_len, &msg)) {
4476 p2p_dbg(p2p, "Failed to parse WSC/P2P attributes from NFC");
4477 p2p_parse_free(&msg);
4478 return -1;
4479 }
4480
4481 if (msg.p2p_device_addr)
4482 p2p_dev_addr = msg.p2p_device_addr;
4483 else if (msg.device_id)
4484 p2p_dev_addr = msg.device_id;
4485 else {
4486 p2p_dbg(p2p, "Ignore scan data without P2P Device Info or P2P Device Id");
4487 p2p_parse_free(&msg);
4488 return -1;
4489 }
4490
4491 if (msg.oob_dev_password) {
4492 os_memcpy(params->oob_dev_pw, msg.oob_dev_password,
4493 msg.oob_dev_password_len);
4494 params->oob_dev_pw_len = msg.oob_dev_password_len;
4495 }
4496
4497 dev = p2p_create_device(p2p, p2p_dev_addr);
4498 if (dev == NULL) {
4499 p2p_parse_free(&msg);
4500 return -1;
4501 }
4502
4503 params->peer = &dev->info;
4504
4505 os_get_reltime(&dev->last_seen);
4506 dev->flags &= ~(P2P_DEV_PROBE_REQ_ONLY | P2P_DEV_GROUP_CLIENT_ONLY);
4507 p2p_copy_wps_info(p2p, dev, 0, &msg);
4508
4509 if (!msg.oob_go_neg_channel) {
4510 p2p_dbg(p2p, "OOB GO Negotiation Channel attribute not included");
4511 return -1;
4512 }
4513
4514 if (msg.oob_go_neg_channel[3] == 0 &&
4515 msg.oob_go_neg_channel[4] == 0)
4516 freq = 0;
4517 else
4518 freq = p2p_channel_to_freq(msg.oob_go_neg_channel[3],
4519 msg.oob_go_neg_channel[4]);
4520 if (freq < 0) {
4521 p2p_dbg(p2p, "Unknown peer OOB GO Neg channel");
4522 return -1;
4523 }
4524 role = msg.oob_go_neg_channel[5];
4525
4526 if (role == P2P_GO_IN_A_GROUP) {
4527 p2p_dbg(p2p, "Peer OOB GO operating channel: %u MHz", freq);
4528 params->go_freq = freq;
4529 } else if (role == P2P_CLIENT_IN_A_GROUP) {
4530 p2p_dbg(p2p, "Peer (client) OOB GO operating channel: %u MHz",
4531 freq);
4532 params->go_freq = freq;
4533 } else
4534 p2p_dbg(p2p, "Peer OOB GO Neg channel: %u MHz", freq);
4535 dev->oob_go_neg_freq = freq;
4536
4537 if (!params->sel && role != P2P_GO_IN_A_GROUP) {
4538 freq = p2p_channel_to_freq(p2p->cfg->reg_class,
4539 p2p->cfg->channel);
4540 if (freq < 0) {
4541 p2p_dbg(p2p, "Own listen channel not known");
4542 return -1;
4543 }
4544 p2p_dbg(p2p, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq);
4545 dev->oob_go_neg_freq = freq;
4546 }
4547
4548 if (msg.group_id) {
4549 os_memcpy(params->go_dev_addr, msg.group_id, ETH_ALEN);
4550 params->go_ssid_len = msg.group_id_len - ETH_ALEN;
4551 os_memcpy(params->go_ssid, msg.group_id + ETH_ALEN,
4552 params->go_ssid_len);
4553 }
4554
4555 p2p_parse_free(&msg);
4556
4557 if (dev->flags & P2P_DEV_USER_REJECTED) {
4558 p2p_dbg(p2p, "Do not report rejected device");
4559 return 0;
4560 }
4561
4562 if (!(dev->flags & P2P_DEV_REPORTED)) {
4563 p2p->cfg->dev_found(p2p->cfg->cb_ctx, p2p_dev_addr, &dev->info,
4564 !(dev->flags & P2P_DEV_REPORTED_ONCE));
4565 dev->flags |= P2P_DEV_REPORTED | P2P_DEV_REPORTED_ONCE;
4566 }
4567
4568 if (role == P2P_GO_IN_A_GROUP && p2p->num_groups > 0)
4569 params->next_step = BOTH_GO;
4570 else if (role == P2P_GO_IN_A_GROUP)
4571 params->next_step = JOIN_GROUP;
4572 else if (role == P2P_CLIENT_IN_A_GROUP) {
4573 dev->flags |= P2P_DEV_GROUP_CLIENT_ONLY;
4574 params->next_step = PEER_CLIENT;
4575 } else if (p2p->num_groups > 0)
4576 params->next_step = AUTH_JOIN;
4577 else if (params->sel)
4578 params->next_step = INIT_GO_NEG;
4579 else
4580 params->next_step = RESP_GO_NEG;
4581
4582 return 0;
4583}
4584
4585
4586void p2p_set_authorized_oob_dev_pw_id(struct p2p_data *p2p, u16 dev_pw_id,
4587 int go_intent,
4588 const u8 *own_interface_addr)
4589{
4590
4591 p2p->authorized_oob_dev_pw_id = dev_pw_id;
4592 if (dev_pw_id == 0) {
4593 p2p_dbg(p2p, "NFC OOB Password unauthorized for static handover");
4594 return;
4595 }
4596
4597 p2p_dbg(p2p, "NFC OOB Password (id=%u) authorized for static handover",
4598 dev_pw_id);
4599
4600 p2p->go_intent = go_intent;
4601 os_memcpy(p2p->intended_addr, own_interface_addr, ETH_ALEN);
4602}
4603
4604#endif /* CONFIG_WPS_NFC */