Line data Source code
1 : /*
2 : * wpa_supplicant - P2P
3 : * Copyright (c) 2009-2010, Atheros Communications
4 : * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
5 : *
6 : * This software may be distributed under the terms of the BSD license.
7 : * See README for more details.
8 : */
9 :
10 : #include "includes.h"
11 :
12 : #include "common.h"
13 : #include "eloop.h"
14 : #include "common/ieee802_11_common.h"
15 : #include "common/ieee802_11_defs.h"
16 : #include "common/wpa_ctrl.h"
17 : #include "wps/wps_i.h"
18 : #include "p2p/p2p.h"
19 : #include "ap/hostapd.h"
20 : #include "ap/ap_config.h"
21 : #include "ap/sta_info.h"
22 : #include "ap/ap_drv_ops.h"
23 : #include "ap/wps_hostapd.h"
24 : #include "ap/p2p_hostapd.h"
25 : #include "ap/dfs.h"
26 : #include "eapol_supp/eapol_supp_sm.h"
27 : #include "rsn_supp/wpa.h"
28 : #include "wpa_supplicant_i.h"
29 : #include "driver_i.h"
30 : #include "ap.h"
31 : #include "config_ssid.h"
32 : #include "config.h"
33 : #include "notify.h"
34 : #include "scan.h"
35 : #include "bss.h"
36 : #include "offchannel.h"
37 : #include "wps_supplicant.h"
38 : #include "p2p_supplicant.h"
39 : #include "wifi_display.h"
40 :
41 :
42 : /*
43 : * How many times to try to scan to find the GO before giving up on join
44 : * request.
45 : */
46 : #define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
47 :
48 : #define P2P_AUTO_PD_SCAN_ATTEMPTS 5
49 :
50 : /**
51 : * Defines time interval in seconds when a GO needs to evacuate a frequency that
52 : * it is currently using, but is no longer valid for P2P use cases.
53 : */
54 : #define P2P_GO_FREQ_CHANGE_TIME 5
55 :
56 : #ifndef P2P_MAX_CLIENT_IDLE
57 : /*
58 : * How many seconds to try to reconnect to the GO when connection in P2P client
59 : * role has been lost.
60 : */
61 : #define P2P_MAX_CLIENT_IDLE 10
62 : #endif /* P2P_MAX_CLIENT_IDLE */
63 :
64 : #ifndef P2P_MAX_INITIAL_CONN_WAIT
65 : /*
66 : * How many seconds to wait for initial 4-way handshake to get completed after
67 : * WPS provisioning step or after the re-invocation of a persistent group on a
68 : * P2P Client.
69 : */
70 : #define P2P_MAX_INITIAL_CONN_WAIT 10
71 : #endif /* P2P_MAX_INITIAL_CONN_WAIT */
72 :
73 : #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
74 : /*
75 : * How many seconds to wait for initial 4-way handshake to get completed after
76 : * WPS provisioning step on the GO. This controls the extra time the P2P
77 : * operation is considered to be in progress (e.g., to delay other scans) after
78 : * WPS provisioning has been completed on the GO during group formation.
79 : */
80 : #define P2P_MAX_INITIAL_CONN_WAIT_GO 10
81 : #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
82 :
83 : #ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
84 : /*
85 : * How many seconds to wait for initial 4-way handshake to get completed after
86 : * re-invocation of a persistent group on the GO when the client is expected
87 : * to connect automatically (no user interaction).
88 : */
89 : #define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
90 : #endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
91 :
92 : #define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
93 :
94 : /*
95 : * How many seconds to wait to re-attempt to move GOs, in case previous attempt
96 : * was not possible.
97 : */
98 : #define P2P_RECONSIDER_GO_MOVE_DELAY 30
99 :
100 : enum p2p_group_removal_reason {
101 : P2P_GROUP_REMOVAL_UNKNOWN,
102 : P2P_GROUP_REMOVAL_SILENT,
103 : P2P_GROUP_REMOVAL_FORMATION_FAILED,
104 : P2P_GROUP_REMOVAL_REQUESTED,
105 : P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
106 : P2P_GROUP_REMOVAL_UNAVAILABLE,
107 : P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
108 : P2P_GROUP_REMOVAL_PSK_FAILURE,
109 : P2P_GROUP_REMOVAL_FREQ_CONFLICT,
110 : P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
111 : };
112 :
113 :
114 : static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
115 : static struct wpa_supplicant *
116 : wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
117 : int go);
118 : static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
119 : const u8 *ssid, size_t ssid_len);
120 : static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
121 : const u8 *ssid, size_t ssid_len);
122 : static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
123 : static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
124 : const u8 *dev_addr, enum p2p_wps_method wps_method,
125 : int auto_join, int freq,
126 : const u8 *ssid, size_t ssid_len);
127 : static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
128 : static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
129 : static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
130 : static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
131 : static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
132 : void *timeout_ctx);
133 : static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
134 : static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
135 : int group_added);
136 : static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
137 : static void wpas_stop_listen(void *ctx);
138 : static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
139 : static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
140 : static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
141 : enum wpa_driver_if_type type);
142 : static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
143 : int already_deleted);
144 : static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
145 : struct wpa_used_freq_data *freqs,
146 : unsigned int num);
147 : static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx);
148 : static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq);
149 : static void
150 : wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
151 : struct wpa_used_freq_data *freqs, unsigned int num,
152 : enum wpas_p2p_channel_update_trig trig);
153 : static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx);
154 :
155 :
156 : /*
157 : * Get the number of concurrent channels that the HW can operate, but that are
158 : * currently not in use by any of the wpa_supplicant interfaces.
159 : */
160 524 : static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
161 : {
162 : int *freqs;
163 : int num, unused;
164 :
165 524 : freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
166 524 : if (!freqs)
167 0 : return -1;
168 :
169 524 : num = get_shared_radio_freqs(wpa_s, freqs,
170 : wpa_s->num_multichan_concurrent);
171 524 : os_free(freqs);
172 :
173 524 : unused = wpa_s->num_multichan_concurrent - num;
174 524 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
175 524 : return unused;
176 : }
177 :
178 :
179 : /*
180 : * Get the frequencies that are currently in use by one or more of the virtual
181 : * interfaces, and that are also valid for P2P operation.
182 : */
183 : static unsigned int
184 563 : wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
185 : struct wpa_used_freq_data *p2p_freqs,
186 : unsigned int len)
187 : {
188 : struct wpa_used_freq_data *freqs;
189 : unsigned int num, i, j;
190 :
191 563 : freqs = os_calloc(wpa_s->num_multichan_concurrent,
192 : sizeof(struct wpa_used_freq_data));
193 563 : if (!freqs)
194 0 : return 0;
195 :
196 563 : num = get_shared_radio_freqs_data(wpa_s, freqs,
197 : wpa_s->num_multichan_concurrent);
198 :
199 563 : os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
200 :
201 673 : for (i = 0, j = 0; i < num && j < len; i++) {
202 110 : if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
203 106 : p2p_freqs[j++] = freqs[i];
204 : }
205 :
206 563 : os_free(freqs);
207 :
208 563 : dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
209 :
210 563 : return j;
211 : }
212 :
213 :
214 315 : static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
215 : int freq)
216 : {
217 315 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
218 315 : return;
219 :
220 : /* Use the wpa_s used to control the P2P Device operation */
221 315 : wpa_s = wpa_s->global->p2p_init_wpa_s;
222 :
223 315 : if (wpa_s->conf->p2p_ignore_shared_freq &&
224 0 : freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
225 0 : wpas_p2p_num_unused_channels(wpa_s) > 0) {
226 0 : wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
227 : freq);
228 0 : freq = 0;
229 : }
230 315 : p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
231 : }
232 :
233 :
234 957 : static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
235 : struct wpa_scan_results *scan_res)
236 : {
237 : size_t i;
238 :
239 957 : if (wpa_s->p2p_scan_work) {
240 881 : struct wpa_radio_work *work = wpa_s->p2p_scan_work;
241 881 : wpa_s->p2p_scan_work = NULL;
242 881 : radio_work_done(work);
243 : }
244 :
245 957 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
246 957 : return;
247 :
248 957 : wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
249 957 : (int) scan_res->num);
250 :
251 2705 : for (i = 0; i < scan_res->num; i++) {
252 1748 : struct wpa_scan_res *bss = scan_res->res[i];
253 : struct os_reltime time_tmp_age, entry_ts;
254 : const u8 *ies;
255 : size_t ies_len;
256 :
257 1748 : time_tmp_age.sec = bss->age / 1000;
258 1748 : time_tmp_age.usec = (bss->age % 1000) * 1000;
259 1748 : os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
260 :
261 1748 : ies = (const u8 *) (bss + 1);
262 1748 : ies_len = bss->ie_len;
263 2381 : if (bss->beacon_ie_len > 0 &&
264 956 : !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
265 323 : wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
266 60 : wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
267 60 : MACSTR, MAC2STR(bss->bssid));
268 10 : ies = ies + ies_len;
269 10 : ies_len = bss->beacon_ie_len;
270 : }
271 :
272 :
273 1748 : if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
274 : bss->freq, &entry_ts, bss->level,
275 : ies, ies_len) > 0)
276 0 : break;
277 : }
278 :
279 957 : p2p_scan_res_handled(wpa_s->global->p2p);
280 : }
281 :
282 :
283 909 : static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
284 : {
285 909 : struct wpa_supplicant *wpa_s = work->wpa_s;
286 909 : struct wpa_driver_scan_params *params = work->ctx;
287 : int ret;
288 :
289 909 : if (deinit) {
290 7 : if (!work->started) {
291 1 : wpa_scan_free_params(params);
292 1 : return;
293 : }
294 :
295 6 : wpa_s->p2p_scan_work = NULL;
296 6 : return;
297 : }
298 :
299 902 : ret = wpa_drv_scan(wpa_s, params);
300 902 : wpa_scan_free_params(params);
301 902 : work->ctx = NULL;
302 902 : if (ret) {
303 2 : radio_work_done(work);
304 2 : p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
305 2 : return;
306 : }
307 :
308 900 : p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
309 900 : os_get_reltime(&wpa_s->scan_trigger_time);
310 900 : wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
311 900 : wpa_s->own_scan_requested = 1;
312 900 : wpa_s->p2p_scan_work = work;
313 : }
314 :
315 :
316 3520 : static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
317 : int freq)
318 : {
319 3520 : if (wpa_s->global->p2p_24ghz_social_channels &&
320 2640 : (freq == 2412 || freq == 2437 || freq == 2462)) {
321 : /*
322 : * Search all social channels regardless of whether these have
323 : * been disabled for P2P operating channel use to avoid missing
324 : * peers.
325 : */
326 2640 : return 1;
327 : }
328 880 : return p2p_supported_freq(wpa_s->global->p2p, freq);
329 : }
330 :
331 :
332 915 : static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
333 : unsigned int num_req_dev_types,
334 : const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
335 : {
336 915 : struct wpa_supplicant *wpa_s = ctx;
337 915 : struct wpa_driver_scan_params *params = NULL;
338 : struct wpabuf *wps_ie, *ies;
339 915 : unsigned int num_channels = 0;
340 915 : int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
341 : size_t ielen;
342 : u8 *n, i;
343 :
344 915 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
345 0 : return -1;
346 :
347 915 : if (wpa_s->p2p_scan_work) {
348 12 : wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
349 12 : return -1;
350 : }
351 :
352 903 : params = os_zalloc(sizeof(*params));
353 903 : if (params == NULL)
354 0 : return -1;
355 :
356 : /* P2P Wildcard SSID */
357 903 : params->num_ssids = 1;
358 903 : n = os_malloc(P2P_WILDCARD_SSID_LEN);
359 903 : if (n == NULL)
360 0 : goto fail;
361 903 : os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
362 903 : params->ssids[0].ssid = n;
363 903 : params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
364 :
365 903 : wpa_s->wps->dev.p2p = 1;
366 903 : wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
367 903 : wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
368 : num_req_dev_types, req_dev_types);
369 903 : if (wps_ie == NULL)
370 0 : goto fail;
371 :
372 903 : ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
373 903 : ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
374 903 : if (ies == NULL) {
375 0 : wpabuf_free(wps_ie);
376 0 : goto fail;
377 : }
378 903 : wpabuf_put_buf(ies, wps_ie);
379 903 : wpabuf_free(wps_ie);
380 :
381 903 : p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
382 :
383 903 : params->p2p_probe = 1;
384 903 : n = os_malloc(wpabuf_len(ies));
385 903 : if (n == NULL) {
386 0 : wpabuf_free(ies);
387 0 : goto fail;
388 : }
389 903 : os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
390 903 : params->extra_ies = n;
391 903 : params->extra_ies_len = wpabuf_len(ies);
392 903 : wpabuf_free(ies);
393 :
394 903 : switch (type) {
395 : case P2P_SCAN_SOCIAL:
396 876 : params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
397 : sizeof(int));
398 876 : if (params->freqs == NULL)
399 0 : goto fail;
400 4380 : for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
401 3504 : if (wpas_p2p_search_social_channel(
402 : wpa_s, social_channels_freq[i]))
403 5256 : params->freqs[num_channels++] =
404 2628 : social_channels_freq[i];
405 : }
406 876 : params->freqs[num_channels++] = 0;
407 876 : break;
408 : case P2P_SCAN_FULL:
409 20 : break;
410 : case P2P_SCAN_SPECIFIC:
411 3 : params->freqs = os_calloc(2, sizeof(int));
412 3 : if (params->freqs == NULL)
413 0 : goto fail;
414 3 : params->freqs[0] = freq;
415 3 : params->freqs[1] = 0;
416 3 : break;
417 : case P2P_SCAN_SOCIAL_PLUS_ONE:
418 4 : params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
419 : sizeof(int));
420 4 : if (params->freqs == NULL)
421 0 : goto fail;
422 20 : for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
423 16 : if (wpas_p2p_search_social_channel(
424 : wpa_s, social_channels_freq[i]))
425 24 : params->freqs[num_channels++] =
426 12 : social_channels_freq[i];
427 : }
428 4 : if (p2p_supported_freq(wpa_s->global->p2p, freq))
429 4 : params->freqs[num_channels++] = freq;
430 4 : params->freqs[num_channels++] = 0;
431 4 : break;
432 : }
433 :
434 903 : radio_remove_works(wpa_s, "p2p-scan", 0);
435 903 : if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
436 : params) < 0)
437 0 : goto fail;
438 903 : return 0;
439 :
440 : fail:
441 0 : wpa_scan_free_params(params);
442 0 : return -1;
443 : }
444 :
445 :
446 134 : static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
447 : {
448 134 : switch (p2p_group_interface) {
449 : case P2P_GROUP_INTERFACE_PENDING:
450 0 : return WPA_IF_P2P_GROUP;
451 : case P2P_GROUP_INTERFACE_GO:
452 104 : return WPA_IF_P2P_GO;
453 : case P2P_GROUP_INTERFACE_CLIENT:
454 30 : return WPA_IF_P2P_CLIENT;
455 : }
456 :
457 0 : return WPA_IF_P2P_GROUP;
458 : }
459 :
460 :
461 103 : static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
462 : const u8 *ssid,
463 : size_t ssid_len, int *go)
464 : {
465 : struct wpa_ssid *s;
466 :
467 197 : for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
468 208 : for (s = wpa_s->conf->ssid; s; s = s->next) {
469 123 : if (s->disabled != 0 || !s->p2p_group ||
470 18 : s->ssid_len != ssid_len ||
471 9 : os_memcmp(ssid, s->ssid, ssid_len) != 0)
472 105 : continue;
473 16 : if (s->mode == WPAS_MODE_P2P_GO &&
474 7 : s != wpa_s->current_ssid)
475 0 : continue;
476 9 : if (go)
477 9 : *go = s->mode == WPAS_MODE_P2P_GO;
478 9 : return wpa_s;
479 : }
480 : }
481 :
482 94 : return NULL;
483 : }
484 :
485 :
486 1 : static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
487 : {
488 1 : struct wpa_supplicant *wpa_s = eloop_ctx;
489 1 : wpa_printf(MSG_DEBUG,
490 : "P2P: Complete previously requested removal of %s",
491 1 : wpa_s->ifname);
492 1 : wpas_p2p_disconnect(wpa_s);
493 1 : }
494 :
495 :
496 402 : static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
497 : struct wpa_supplicant *calling_wpa_s)
498 : {
499 691 : if (calling_wpa_s == wpa_s && wpa_s &&
500 289 : wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
501 : /*
502 : * The calling wpa_s instance is going to be removed. Do that
503 : * from an eloop callback to keep the instance available until
504 : * the caller has returned. This my be needed, e.g., to provide
505 : * control interface responses on the per-interface socket.
506 : */
507 1 : if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
508 : wpa_s, NULL) < 0)
509 0 : return -1;
510 1 : return 0;
511 : }
512 :
513 401 : return wpas_p2p_disconnect(wpa_s);
514 : }
515 :
516 :
517 : /* Determine total number of clients in active groups where we are the GO */
518 0 : static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
519 : {
520 0 : unsigned int count = 0;
521 : struct wpa_ssid *s;
522 :
523 0 : for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
524 0 : for (s = wpa_s->conf->ssid; s; s = s->next) {
525 0 : wpa_printf(MSG_DEBUG,
526 : "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
527 : wpa_s, s, s->disabled, s->p2p_group,
528 0 : s->mode);
529 0 : if (!s->disabled && s->p2p_group &&
530 0 : s->mode == WPAS_MODE_P2P_GO) {
531 0 : count += p2p_get_group_num_members(
532 : wpa_s->p2p_group);
533 : }
534 : }
535 : }
536 :
537 0 : return count;
538 : }
539 :
540 :
541 : /* Find an interface for a P2P group where we are the GO */
542 : static struct wpa_supplicant *
543 123 : wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
544 : {
545 123 : struct wpa_supplicant *save = NULL;
546 : struct wpa_ssid *s;
547 :
548 123 : if (!wpa_s)
549 0 : return NULL;
550 :
551 246 : for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
552 127 : for (s = wpa_s->conf->ssid; s; s = s->next) {
553 4 : if (s->disabled || !s->p2p_group ||
554 0 : s->mode != WPAS_MODE_P2P_GO)
555 4 : continue;
556 :
557 : /* Prefer a group with connected clients */
558 0 : if (p2p_get_group_num_members(wpa_s->p2p_group))
559 0 : return wpa_s;
560 0 : save = wpa_s;
561 : }
562 : }
563 :
564 : /* No group with connected clients, so pick the one without (if any) */
565 123 : return save;
566 : }
567 :
568 :
569 : /* Find an active P2P group where we are the GO */
570 42 : static struct wpa_ssid * wpas_p2p_group_go_ssid(struct wpa_supplicant *wpa_s,
571 : u8 *bssid)
572 : {
573 42 : struct wpa_ssid *s, *empty = NULL;
574 :
575 42 : if (!wpa_s)
576 0 : return 0;
577 :
578 84 : for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
579 43 : for (s = wpa_s->conf->ssid; s; s = s->next) {
580 1 : if (s->disabled || !s->p2p_group ||
581 0 : s->mode != WPAS_MODE_P2P_GO)
582 1 : continue;
583 :
584 0 : os_memcpy(bssid, wpa_s->own_addr, ETH_ALEN);
585 0 : if (p2p_get_group_num_members(wpa_s->p2p_group))
586 0 : return s;
587 0 : empty = s;
588 : }
589 : }
590 :
591 42 : return empty;
592 : }
593 :
594 :
595 : /* Find a persistent group where we are the GO */
596 : static struct wpa_ssid *
597 202 : wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
598 : {
599 : struct wpa_ssid *s;
600 :
601 206 : for (s = wpa_s->conf->ssid; s; s = s->next) {
602 7 : if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
603 3 : return s;
604 : }
605 :
606 199 : return NULL;
607 : }
608 :
609 :
610 66 : static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role)
611 : {
612 66 : struct wpa_supplicant *wpa_s = ctx, *tmp_wpa_s;
613 : struct wpa_ssid *s;
614 66 : u8 conncap = P2PS_SETUP_NONE;
615 66 : unsigned int owned_members = 0;
616 66 : unsigned int owner = 0;
617 66 : unsigned int client = 0;
618 : struct wpa_supplicant *go_wpa_s;
619 : struct wpa_ssid *persistent_go;
620 : int p2p_no_group_iface;
621 :
622 66 : wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
623 :
624 : /*
625 : * For non-concurrent capable devices:
626 : * If persistent_go, then no new.
627 : * If GO, then no client.
628 : * If client, then no GO.
629 : */
630 66 : go_wpa_s = wpas_p2p_get_go_group(wpa_s);
631 66 : persistent_go = wpas_p2p_get_persistent_go(wpa_s);
632 66 : p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
633 :
634 66 : wpa_printf(MSG_DEBUG, "P2P: GO(iface)=%p persistent(ssid)=%p",
635 : go_wpa_s, persistent_go);
636 :
637 198 : for (tmp_wpa_s = wpa_s->global->ifaces; tmp_wpa_s;
638 66 : tmp_wpa_s = tmp_wpa_s->next) {
639 68 : for (s = tmp_wpa_s->conf->ssid; s; s = s->next) {
640 2 : wpa_printf(MSG_DEBUG,
641 : "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
642 : tmp_wpa_s, s, s->disabled,
643 2 : s->p2p_group, s->mode);
644 2 : if (!s->disabled && s->p2p_group) {
645 0 : if (s->mode == WPAS_MODE_P2P_GO) {
646 0 : owned_members +=
647 0 : p2p_get_group_num_members(
648 : tmp_wpa_s->p2p_group);
649 0 : owner++;
650 : } else
651 0 : client++;
652 : }
653 : }
654 : }
655 :
656 : /* If not concurrent, restrict our choices */
657 66 : if (p2p_no_group_iface) {
658 60 : wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
659 :
660 60 : if (client)
661 0 : return P2PS_SETUP_NONE;
662 :
663 60 : if (go_wpa_s) {
664 0 : if (role == P2PS_SETUP_CLIENT ||
665 0 : incoming == P2PS_SETUP_GROUP_OWNER ||
666 0 : p2p_client_limit_reached(go_wpa_s->p2p_group))
667 0 : return P2PS_SETUP_NONE;
668 :
669 0 : return P2PS_SETUP_GROUP_OWNER;
670 : }
671 :
672 60 : if (persistent_go) {
673 1 : if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
674 0 : if (!incoming)
675 0 : return P2PS_SETUP_GROUP_OWNER |
676 : P2PS_SETUP_CLIENT;
677 0 : if (incoming == P2PS_SETUP_NEW) {
678 : u8 r;
679 :
680 0 : if (os_get_random(&r, sizeof(r)) < 0 ||
681 0 : (r & 1))
682 0 : return P2PS_SETUP_CLIENT;
683 0 : return P2PS_SETUP_GROUP_OWNER;
684 : }
685 : }
686 : }
687 : }
688 :
689 : /* If a required role has been specified, handle it here */
690 66 : if (role && role != P2PS_SETUP_NEW) {
691 15 : switch (incoming) {
692 : case P2PS_SETUP_NONE:
693 : case P2PS_SETUP_NEW:
694 : case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
695 : case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
696 15 : conncap = role;
697 15 : goto grp_owner;
698 :
699 : case P2PS_SETUP_GROUP_OWNER:
700 : /*
701 : * Must be a complimentary role - cannot be a client to
702 : * more than one peer.
703 : */
704 0 : if (incoming == role || client)
705 0 : return P2PS_SETUP_NONE;
706 :
707 0 : return P2PS_SETUP_CLIENT;
708 :
709 : case P2PS_SETUP_CLIENT:
710 : /* Must be a complimentary role */
711 0 : if (incoming != role) {
712 0 : conncap = P2PS_SETUP_GROUP_OWNER;
713 0 : goto grp_owner;
714 : }
715 :
716 : default:
717 0 : return P2PS_SETUP_NONE;
718 : }
719 : }
720 :
721 : /*
722 : * For now, we only will support ownership of one group, and being a
723 : * client of one group. Therefore, if we have either an existing GO
724 : * group, or an existing client group, we will not do a new GO
725 : * negotiation, but rather try to re-use the existing groups.
726 : */
727 51 : switch (incoming) {
728 : case P2PS_SETUP_NONE:
729 : case P2PS_SETUP_NEW:
730 51 : if (client)
731 0 : conncap = P2PS_SETUP_GROUP_OWNER;
732 51 : else if (!owned_members)
733 51 : conncap = P2PS_SETUP_NEW;
734 0 : else if (incoming == P2PS_SETUP_NONE)
735 0 : conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
736 : else
737 0 : conncap = P2PS_SETUP_CLIENT;
738 51 : break;
739 :
740 : case P2PS_SETUP_CLIENT:
741 0 : conncap = P2PS_SETUP_GROUP_OWNER;
742 0 : break;
743 :
744 : case P2PS_SETUP_GROUP_OWNER:
745 0 : if (!client)
746 0 : conncap = P2PS_SETUP_CLIENT;
747 0 : break;
748 :
749 : case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
750 : case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
751 0 : if (client)
752 0 : conncap = P2PS_SETUP_GROUP_OWNER;
753 : else {
754 : u8 r;
755 :
756 0 : if (os_get_random(&r, sizeof(r)) < 0 ||
757 0 : (r & 1))
758 0 : conncap = P2PS_SETUP_CLIENT;
759 : else
760 0 : conncap = P2PS_SETUP_GROUP_OWNER;
761 : }
762 0 : break;
763 :
764 : default:
765 0 : return P2PS_SETUP_NONE;
766 : }
767 :
768 : grp_owner:
769 66 : if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
770 31 : (!incoming && (conncap & P2PS_SETUP_NEW))) {
771 37 : if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
772 0 : conncap &= ~P2PS_SETUP_GROUP_OWNER;
773 37 : wpa_printf(MSG_DEBUG, "P2P: GOs:%d members:%d conncap:%d",
774 : owner, owned_members, conncap);
775 :
776 37 : s = wpas_p2p_get_persistent_go(wpa_s);
777 :
778 37 : if (!s && !owner && p2p_no_group_iface) {
779 32 : p2p_set_intended_addr(wpa_s->global->p2p,
780 32 : wpa_s->own_addr);
781 5 : } else if (!s && !owner) {
782 4 : if (wpas_p2p_add_group_interface(wpa_s,
783 : WPA_IF_P2P_GO) < 0) {
784 0 : wpa_printf(MSG_ERROR,
785 : "P2P: Failed to allocate a new interface for the group");
786 0 : return P2PS_SETUP_NONE;
787 : }
788 4 : wpa_s->global->pending_group_iface_for_p2ps = 1;
789 4 : p2p_set_intended_addr(wpa_s->global->p2p,
790 4 : wpa_s->pending_interface_addr);
791 : }
792 : }
793 :
794 66 : return conncap;
795 : }
796 :
797 :
798 546 : static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
799 : enum p2p_group_removal_reason removal_reason)
800 : {
801 : struct wpa_ssid *ssid;
802 : char *gtype;
803 : const char *reason;
804 :
805 546 : ssid = wpa_s->current_ssid;
806 546 : if (ssid == NULL) {
807 : /*
808 : * The current SSID was not known, but there may still be a
809 : * pending P2P group interface waiting for provisioning or a
810 : * P2P group that is trying to reconnect.
811 : */
812 21 : ssid = wpa_s->conf->ssid;
813 45 : while (ssid) {
814 13 : if (ssid->p2p_group && ssid->disabled != 2)
815 10 : break;
816 3 : ssid = ssid->next;
817 : }
818 32 : if (ssid == NULL &&
819 11 : wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
820 : {
821 11 : wpa_printf(MSG_ERROR, "P2P: P2P group interface "
822 : "not found");
823 11 : return -1;
824 : }
825 : }
826 535 : if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
827 104 : gtype = "GO";
828 431 : else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
829 401 : (ssid && ssid->mode == WPAS_MODE_INFRA)) {
830 215 : wpa_s->reassociate = 0;
831 215 : wpa_s->disconnected = 1;
832 215 : gtype = "client";
833 : } else
834 216 : gtype = "GO";
835 :
836 535 : if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
837 534 : wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
838 :
839 535 : if (os_strcmp(gtype, "client") == 0) {
840 215 : wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
841 215 : if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
842 : wpa_s, NULL)) {
843 0 : wpa_printf(MSG_DEBUG,
844 : "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
845 0 : removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
846 0 : eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
847 : wpa_s, NULL);
848 : }
849 : }
850 :
851 535 : if (wpa_s->cross_connect_in_use) {
852 1 : wpa_s->cross_connect_in_use = 0;
853 1 : wpa_msg_global(wpa_s->parent, MSG_INFO,
854 : P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
855 1 : wpa_s->ifname, wpa_s->cross_connect_uplink);
856 : }
857 535 : switch (removal_reason) {
858 : case P2P_GROUP_REMOVAL_REQUESTED:
859 402 : reason = " reason=REQUESTED";
860 402 : break;
861 : case P2P_GROUP_REMOVAL_FORMATION_FAILED:
862 18 : reason = " reason=FORMATION_FAILED";
863 18 : break;
864 : case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
865 2 : reason = " reason=IDLE";
866 2 : break;
867 : case P2P_GROUP_REMOVAL_UNAVAILABLE:
868 5 : reason = " reason=UNAVAILABLE";
869 5 : break;
870 : case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
871 106 : reason = " reason=GO_ENDING_SESSION";
872 106 : break;
873 : case P2P_GROUP_REMOVAL_PSK_FAILURE:
874 1 : reason = " reason=PSK_FAILURE";
875 1 : break;
876 : case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
877 0 : reason = " reason=FREQ_CONFLICT";
878 0 : break;
879 : default:
880 1 : reason = "";
881 1 : break;
882 : }
883 535 : if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
884 534 : wpa_msg_global(wpa_s->parent, MSG_INFO,
885 : P2P_EVENT_GROUP_REMOVED "%s %s%s",
886 534 : wpa_s->ifname, gtype, reason);
887 : }
888 :
889 535 : if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
890 0 : wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
891 535 : if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
892 203 : wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
893 535 : if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
894 535 : wpa_s->parent, NULL) > 0) {
895 10 : wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
896 : "timeout");
897 10 : wpa_s->p2p_in_provisioning = 0;
898 10 : wpas_p2p_group_formation_failed(wpa_s, 1);
899 : }
900 :
901 535 : wpa_s->p2p_in_invitation = 0;
902 535 : eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
903 535 : eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
904 :
905 : /*
906 : * Make sure wait for the first client does not remain active after the
907 : * group has been removed.
908 : */
909 535 : wpa_s->global->p2p_go_wait_client.sec = 0;
910 :
911 535 : if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
912 : struct wpa_global *global;
913 : char *ifname;
914 : enum wpa_driver_if_type type;
915 134 : wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
916 134 : wpa_s->ifname);
917 134 : global = wpa_s->global;
918 134 : ifname = os_strdup(wpa_s->ifname);
919 134 : type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
920 134 : eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
921 134 : wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
922 134 : wpa_s = global->ifaces;
923 134 : if (wpa_s && ifname)
924 132 : wpa_drv_if_remove(wpa_s, type, ifname);
925 134 : os_free(ifname);
926 134 : return 1;
927 : }
928 :
929 401 : if (!wpa_s->p2p_go_group_formation_completed) {
930 57 : wpa_s->global->p2p_group_formation = NULL;
931 57 : wpa_s->p2p_in_provisioning = 0;
932 : }
933 :
934 401 : wpa_s->show_group_started = 0;
935 401 : os_free(wpa_s->go_params);
936 401 : wpa_s->go_params = NULL;
937 :
938 401 : os_free(wpa_s->p2p_group_common_freqs);
939 401 : wpa_s->p2p_group_common_freqs = NULL;
940 401 : wpa_s->p2p_group_common_freqs_num = 0;
941 :
942 401 : wpa_s->waiting_presence_resp = 0;
943 :
944 401 : wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
945 401 : if (ssid && (ssid->p2p_group ||
946 0 : ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
947 401 : (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
948 401 : int id = ssid->id;
949 401 : if (ssid == wpa_s->current_ssid) {
950 216 : wpa_sm_set_config(wpa_s->wpa, NULL);
951 216 : eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
952 216 : wpa_s->current_ssid = NULL;
953 : }
954 : /*
955 : * Networks objects created during any P2P activities are not
956 : * exposed out as they might/will confuse certain non-P2P aware
957 : * applications since these network objects won't behave like
958 : * regular ones.
959 : *
960 : * Likewise, we don't send out network removed signals for such
961 : * network objects.
962 : */
963 401 : wpa_config_remove_network(wpa_s->conf, id);
964 401 : wpa_supplicant_clear_status(wpa_s);
965 401 : wpa_supplicant_cancel_sched_scan(wpa_s);
966 : } else {
967 0 : wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
968 : "found");
969 : }
970 401 : if (wpa_s->ap_iface)
971 216 : wpa_supplicant_ap_deinit(wpa_s);
972 : else
973 185 : wpa_drv_deinit_p2p_cli(wpa_s);
974 :
975 401 : os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
976 :
977 401 : return 0;
978 : }
979 :
980 :
981 551 : static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
982 : u8 *go_dev_addr,
983 : const u8 *ssid, size_t ssid_len)
984 : {
985 : struct wpa_bss *bss;
986 : const u8 *bssid;
987 : struct wpabuf *p2p;
988 : u8 group_capab;
989 : const u8 *addr;
990 :
991 551 : if (wpa_s->go_params)
992 521 : bssid = wpa_s->go_params->peer_interface_addr;
993 : else
994 30 : bssid = wpa_s->bssid;
995 :
996 551 : bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
997 565 : if (bss == NULL && wpa_s->go_params &&
998 14 : !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
999 14 : bss = wpa_bss_get_p2p_dev_addr(
1000 14 : wpa_s, wpa_s->go_params->peer_device_addr);
1001 551 : if (bss == NULL) {
1002 : u8 iface_addr[ETH_ALEN];
1003 0 : if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
1004 : iface_addr) == 0)
1005 0 : bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
1006 : }
1007 551 : if (bss == NULL) {
1008 0 : wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1009 : "group is persistent - BSS " MACSTR " not found",
1010 0 : MAC2STR(bssid));
1011 0 : return 0;
1012 : }
1013 :
1014 551 : p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1015 551 : if (p2p == NULL)
1016 0 : p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
1017 : P2P_IE_VENDOR_TYPE);
1018 551 : if (p2p == NULL) {
1019 0 : wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1020 : "group is persistent - BSS " MACSTR
1021 0 : " did not include P2P IE", MAC2STR(bssid));
1022 0 : wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
1023 : (u8 *) (bss + 1), bss->ie_len);
1024 0 : wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
1025 0 : ((u8 *) bss + 1) + bss->ie_len,
1026 : bss->beacon_ie_len);
1027 0 : return 0;
1028 : }
1029 :
1030 551 : group_capab = p2p_get_group_capab(p2p);
1031 551 : addr = p2p_get_go_dev_addr(p2p);
1032 551 : wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
1033 : "group_capab=0x%x", group_capab);
1034 551 : if (addr) {
1035 551 : os_memcpy(go_dev_addr, addr, ETH_ALEN);
1036 3306 : wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1037 3306 : MAC2STR(addr));
1038 : } else
1039 0 : os_memset(go_dev_addr, 0, ETH_ALEN);
1040 551 : wpabuf_free(p2p);
1041 :
1042 6612 : wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1043 : "go_dev_addr=" MACSTR,
1044 6612 : MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1045 :
1046 551 : return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1047 : }
1048 :
1049 :
1050 208 : static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1051 : struct wpa_ssid *ssid,
1052 : const u8 *go_dev_addr)
1053 : {
1054 : struct wpa_ssid *s;
1055 208 : int changed = 0;
1056 :
1057 1248 : wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1058 1248 : "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1059 347 : for (s = wpa_s->conf->ssid; s; s = s->next) {
1060 365 : if (s->disabled == 2 &&
1061 226 : os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1062 224 : s->ssid_len == ssid->ssid_len &&
1063 112 : os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1064 112 : break;
1065 : }
1066 :
1067 208 : if (s) {
1068 112 : wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1069 : "entry");
1070 112 : if (ssid->passphrase && !s->passphrase)
1071 0 : changed = 1;
1072 145 : else if (ssid->passphrase && s->passphrase &&
1073 33 : os_strcmp(ssid->passphrase, s->passphrase) != 0)
1074 0 : changed = 1;
1075 : } else {
1076 96 : wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1077 : "entry");
1078 96 : changed = 1;
1079 96 : s = wpa_config_add_network(wpa_s->conf);
1080 96 : if (s == NULL)
1081 0 : return -1;
1082 :
1083 : /*
1084 : * Instead of network_added we emit persistent_group_added
1085 : * notification. Also to keep the defense checks in
1086 : * persistent_group obj registration method, we set the
1087 : * relevant flags in s to designate it as a persistent group.
1088 : */
1089 96 : s->p2p_group = 1;
1090 96 : s->p2p_persistent_group = 1;
1091 96 : wpas_notify_persistent_group_added(wpa_s, s);
1092 96 : wpa_config_set_network_defaults(s);
1093 : }
1094 :
1095 208 : s->p2p_group = 1;
1096 208 : s->p2p_persistent_group = 1;
1097 208 : s->disabled = 2;
1098 208 : s->bssid_set = 1;
1099 208 : os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1100 208 : s->mode = ssid->mode;
1101 208 : s->auth_alg = WPA_AUTH_ALG_OPEN;
1102 208 : s->key_mgmt = WPA_KEY_MGMT_PSK;
1103 208 : s->proto = WPA_PROTO_RSN;
1104 208 : s->pairwise_cipher = WPA_CIPHER_CCMP;
1105 208 : s->export_keys = 1;
1106 208 : if (ssid->passphrase) {
1107 81 : os_free(s->passphrase);
1108 81 : s->passphrase = os_strdup(ssid->passphrase);
1109 : }
1110 208 : if (ssid->psk_set) {
1111 208 : s->psk_set = 1;
1112 208 : os_memcpy(s->psk, ssid->psk, 32);
1113 : }
1114 208 : if (s->passphrase && !s->psk_set)
1115 0 : wpa_config_update_psk(s);
1116 208 : if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1117 96 : os_free(s->ssid);
1118 96 : s->ssid = os_malloc(ssid->ssid_len);
1119 : }
1120 208 : if (s->ssid) {
1121 208 : s->ssid_len = ssid->ssid_len;
1122 208 : os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1123 : }
1124 208 : if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1125 2 : dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1126 2 : wpa_s->global->add_psk = NULL;
1127 2 : changed = 1;
1128 : }
1129 :
1130 208 : if (changed && wpa_s->conf->update_config &&
1131 0 : wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1132 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1133 : }
1134 :
1135 208 : return s->id;
1136 : }
1137 :
1138 :
1139 204 : static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1140 : const u8 *addr)
1141 : {
1142 : struct wpa_ssid *ssid, *s;
1143 : u8 *n;
1144 : size_t i;
1145 204 : int found = 0;
1146 204 : struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
1147 :
1148 204 : ssid = wpa_s->current_ssid;
1149 408 : if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1150 204 : !ssid->p2p_persistent_group)
1151 126 : return;
1152 :
1153 121 : for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
1154 121 : if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1155 43 : continue;
1156 :
1157 156 : if (s->ssid_len == ssid->ssid_len &&
1158 78 : os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1159 78 : break;
1160 : }
1161 :
1162 78 : if (s == NULL)
1163 0 : return;
1164 :
1165 168 : for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
1166 36 : if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
1167 : ETH_ALEN) != 0)
1168 6 : continue;
1169 :
1170 30 : if (i == s->num_p2p_clients - 1)
1171 26 : return; /* already the most recent entry */
1172 :
1173 : /* move the entry to mark it most recent */
1174 4 : os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1175 : s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1176 : (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
1177 4 : os_memcpy(s->p2p_client_list +
1178 : (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1179 : ETH_ALEN);
1180 4 : os_memset(s->p2p_client_list +
1181 : (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1182 : 0xff, ETH_ALEN);
1183 4 : found = 1;
1184 4 : break;
1185 : }
1186 :
1187 52 : if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
1188 48 : n = os_realloc_array(s->p2p_client_list,
1189 48 : s->num_p2p_clients + 1, 2 * ETH_ALEN);
1190 48 : if (n == NULL)
1191 0 : return;
1192 48 : os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1193 : ETH_ALEN);
1194 48 : os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1195 : 0xff, ETH_ALEN);
1196 48 : s->p2p_client_list = n;
1197 48 : s->num_p2p_clients++;
1198 4 : } else if (!found && s->p2p_client_list) {
1199 : /* Not enough room for an additional entry - drop the oldest
1200 : * entry */
1201 0 : os_memmove(s->p2p_client_list,
1202 : s->p2p_client_list + 2 * ETH_ALEN,
1203 : (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
1204 0 : os_memcpy(s->p2p_client_list +
1205 : (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
1206 : addr, ETH_ALEN);
1207 0 : os_memset(s->p2p_client_list +
1208 : (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1209 : 0xff, ETH_ALEN);
1210 : }
1211 :
1212 52 : if (p2p_wpa_s->conf->update_config &&
1213 0 : wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
1214 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1215 : }
1216 :
1217 :
1218 516 : static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1219 : int go, struct wpa_ssid *ssid, int freq,
1220 : const u8 *psk, const char *passphrase,
1221 : const u8 *go_dev_addr, int persistent,
1222 : const char *extra)
1223 : {
1224 : const char *ssid_txt;
1225 : char psk_txt[65];
1226 :
1227 516 : if (psk)
1228 202 : wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1229 : else
1230 314 : psk_txt[0] = '\0';
1231 :
1232 516 : if (ssid)
1233 516 : ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1234 : else
1235 0 : ssid_txt = "";
1236 :
1237 516 : if (passphrase && passphrase[0] == '\0')
1238 0 : passphrase = NULL;
1239 :
1240 : /*
1241 : * Include PSK/passphrase only in the control interface message and
1242 : * leave it out from the debug log entry.
1243 : */
1244 4128 : wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
1245 : P2P_EVENT_GROUP_STARTED
1246 : "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1247 : MACSTR "%s%s",
1248 516 : wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1249 : psk ? " psk=" : "", psk_txt,
1250 : passphrase ? " passphrase=\"" : "",
1251 : passphrase ? passphrase : "",
1252 : passphrase ? "\"" : "",
1253 3096 : MAC2STR(go_dev_addr),
1254 : persistent ? " [PERSISTENT]" : "", extra);
1255 4128 : wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1256 : "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1257 516 : wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1258 3096 : MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1259 : extra);
1260 516 : }
1261 :
1262 :
1263 307 : static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
1264 : int success, int already_deleted)
1265 : {
1266 : struct wpa_ssid *ssid;
1267 : int client;
1268 : int persistent;
1269 : u8 go_dev_addr[ETH_ALEN];
1270 307 : int network_id = -1;
1271 :
1272 : /*
1273 : * This callback is likely called for the main interface. Update wpa_s
1274 : * to use the group interface if a new interface was created for the
1275 : * group.
1276 : */
1277 307 : if (wpa_s->global->p2p_group_formation)
1278 301 : wpa_s = wpa_s->global->p2p_group_formation;
1279 307 : if (wpa_s->p2p_go_group_formation_completed) {
1280 184 : wpa_s->global->p2p_group_formation = NULL;
1281 184 : wpa_s->p2p_in_provisioning = 0;
1282 : }
1283 307 : wpa_s->p2p_in_invitation = 0;
1284 307 : wpa_s->group_formation_reported = 1;
1285 :
1286 307 : if (!success) {
1287 28 : wpa_msg_global(wpa_s->parent, MSG_INFO,
1288 : P2P_EVENT_GROUP_FORMATION_FAILURE);
1289 28 : wpas_notify_p2p_group_formation_failure(wpa_s, "");
1290 28 : if (already_deleted)
1291 38 : return;
1292 18 : wpas_p2p_group_delete(wpa_s,
1293 : P2P_GROUP_REMOVAL_FORMATION_FAILED);
1294 18 : return;
1295 : }
1296 :
1297 279 : wpa_msg_global(wpa_s->parent, MSG_INFO,
1298 : P2P_EVENT_GROUP_FORMATION_SUCCESS);
1299 :
1300 279 : ssid = wpa_s->current_ssid;
1301 279 : if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1302 105 : ssid->mode = WPAS_MODE_P2P_GO;
1303 105 : p2p_group_notif_formation_done(wpa_s->p2p_group);
1304 105 : wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1305 : }
1306 :
1307 279 : persistent = 0;
1308 279 : if (ssid) {
1309 279 : client = ssid->mode == WPAS_MODE_INFRA;
1310 279 : if (ssid->mode == WPAS_MODE_P2P_GO) {
1311 105 : persistent = ssid->p2p_persistent_group;
1312 105 : os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
1313 : ETH_ALEN);
1314 : } else
1315 348 : persistent = wpas_p2p_persistent_group(wpa_s,
1316 : go_dev_addr,
1317 174 : ssid->ssid,
1318 : ssid->ssid_len);
1319 : } else {
1320 0 : client = wpa_s->p2p_group_interface ==
1321 : P2P_GROUP_INTERFACE_CLIENT;
1322 0 : os_memset(go_dev_addr, 0, ETH_ALEN);
1323 : }
1324 :
1325 279 : wpa_s->show_group_started = 0;
1326 279 : if (client) {
1327 : /*
1328 : * Indicate event only after successfully completed 4-way
1329 : * handshake, i.e., when the interface is ready for data
1330 : * packets.
1331 : */
1332 174 : wpa_s->show_group_started = 1;
1333 : } else {
1334 105 : wpas_p2p_group_started(wpa_s, 1, ssid,
1335 : ssid ? ssid->frequency : 0,
1336 105 : ssid && ssid->passphrase == NULL &&
1337 0 : ssid->psk_set ? ssid->psk : NULL,
1338 : ssid ? ssid->passphrase : NULL,
1339 : go_dev_addr, persistent, "");
1340 105 : wpas_p2p_cross_connect_setup(wpa_s);
1341 105 : wpas_p2p_set_group_idle_timeout(wpa_s);
1342 : }
1343 :
1344 279 : if (persistent)
1345 77 : network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
1346 : ssid, go_dev_addr);
1347 : else {
1348 202 : os_free(wpa_s->global->add_psk);
1349 202 : wpa_s->global->add_psk = NULL;
1350 : }
1351 279 : if (network_id < 0 && ssid)
1352 202 : network_id = ssid->id;
1353 279 : if (!client) {
1354 105 : wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1355 105 : os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1356 : }
1357 : }
1358 :
1359 :
1360 : struct send_action_work {
1361 : unsigned int freq;
1362 : u8 dst[ETH_ALEN];
1363 : u8 src[ETH_ALEN];
1364 : u8 bssid[ETH_ALEN];
1365 : size_t len;
1366 : unsigned int wait_time;
1367 : u8 buf[0];
1368 : };
1369 :
1370 :
1371 137 : static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1372 : void *timeout_ctx)
1373 : {
1374 137 : struct wpa_supplicant *wpa_s = eloop_ctx;
1375 :
1376 137 : if (!wpa_s->p2p_send_action_work)
1377 137 : return;
1378 :
1379 137 : wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1380 137 : os_free(wpa_s->p2p_send_action_work->ctx);
1381 137 : radio_work_done(wpa_s->p2p_send_action_work);
1382 137 : wpa_s->p2p_send_action_work = NULL;
1383 : }
1384 :
1385 :
1386 1357 : static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
1387 : {
1388 1357 : if (wpa_s->p2p_send_action_work) {
1389 : struct send_action_work *awork;
1390 991 : awork = wpa_s->p2p_send_action_work->ctx;
1391 991 : if (awork->wait_time == 0) {
1392 0 : os_free(awork);
1393 0 : radio_work_done(wpa_s->p2p_send_action_work);
1394 0 : wpa_s->p2p_send_action_work = NULL;
1395 : } else {
1396 : /*
1397 : * In theory, this should not be needed, but number of
1398 : * places in the P2P code is still using non-zero wait
1399 : * time for the last Action frame in the sequence and
1400 : * some of these do not call send_action_done().
1401 : */
1402 991 : eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1403 : wpa_s, NULL);
1404 991 : eloop_register_timeout(
1405 991 : 0, awork->wait_time * 1000,
1406 : wpas_p2p_send_action_work_timeout,
1407 : wpa_s, NULL);
1408 : }
1409 : }
1410 1357 : }
1411 :
1412 :
1413 1353 : static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1414 : unsigned int freq,
1415 : const u8 *dst, const u8 *src,
1416 : const u8 *bssid,
1417 : const u8 *data, size_t data_len,
1418 : enum offchannel_send_action_result
1419 : result)
1420 : {
1421 1353 : enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1422 :
1423 1353 : wpas_p2p_action_tx_clear(wpa_s);
1424 :
1425 1353 : if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
1426 0 : return;
1427 :
1428 1353 : switch (result) {
1429 : case OFFCHANNEL_SEND_ACTION_SUCCESS:
1430 977 : res = P2P_SEND_ACTION_SUCCESS;
1431 977 : break;
1432 : case OFFCHANNEL_SEND_ACTION_NO_ACK:
1433 376 : res = P2P_SEND_ACTION_NO_ACK;
1434 376 : break;
1435 : case OFFCHANNEL_SEND_ACTION_FAILED:
1436 0 : res = P2P_SEND_ACTION_FAILED;
1437 0 : break;
1438 : }
1439 :
1440 1353 : p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
1441 :
1442 1729 : if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1443 376 : wpa_s->pending_pd_before_join &&
1444 0 : (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1445 0 : os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1446 : wpa_s->p2p_fallback_to_go_neg) {
1447 0 : wpa_s->pending_pd_before_join = 0;
1448 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1449 : "during p2p_connect-auto");
1450 0 : wpa_msg_global(wpa_s->parent, MSG_INFO,
1451 : P2P_EVENT_FALLBACK_TO_GO_NEG
1452 : "reason=no-ACK-to-PD-Req");
1453 0 : wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1454 0 : return;
1455 : }
1456 : }
1457 :
1458 :
1459 868 : static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1460 : {
1461 868 : struct wpa_supplicant *wpa_s = work->wpa_s;
1462 868 : struct send_action_work *awork = work->ctx;
1463 :
1464 868 : if (deinit) {
1465 13 : if (work->started) {
1466 13 : eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1467 : wpa_s, NULL);
1468 13 : wpa_s->p2p_send_action_work = NULL;
1469 13 : offchannel_send_action_done(wpa_s);
1470 : }
1471 13 : os_free(awork);
1472 13 : return;
1473 : }
1474 :
1475 1710 : if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1476 855 : awork->bssid, awork->buf, awork->len,
1477 : awork->wait_time,
1478 : wpas_p2p_send_action_tx_status, 1) < 0) {
1479 0 : os_free(awork);
1480 0 : radio_work_done(work);
1481 0 : return;
1482 : }
1483 855 : wpa_s->p2p_send_action_work = work;
1484 : }
1485 :
1486 :
1487 859 : static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1488 : unsigned int freq, const u8 *dst,
1489 : const u8 *src, const u8 *bssid, const u8 *buf,
1490 : size_t len, unsigned int wait_time)
1491 : {
1492 : struct send_action_work *awork;
1493 :
1494 859 : if (wpa_s->p2p_send_action_work) {
1495 4 : wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1496 4 : return -1;
1497 : }
1498 :
1499 855 : awork = os_zalloc(sizeof(*awork) + len);
1500 855 : if (awork == NULL)
1501 0 : return -1;
1502 :
1503 855 : awork->freq = freq;
1504 855 : os_memcpy(awork->dst, dst, ETH_ALEN);
1505 855 : os_memcpy(awork->src, src, ETH_ALEN);
1506 855 : os_memcpy(awork->bssid, bssid, ETH_ALEN);
1507 855 : awork->len = len;
1508 855 : awork->wait_time = wait_time;
1509 855 : os_memcpy(awork->buf, buf, len);
1510 :
1511 855 : if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1512 : wpas_send_action_cb, awork) < 0) {
1513 0 : os_free(awork);
1514 0 : return -1;
1515 : }
1516 :
1517 855 : return 0;
1518 : }
1519 :
1520 :
1521 1369 : static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1522 : const u8 *src, const u8 *bssid, const u8 *buf,
1523 : size_t len, unsigned int wait_time)
1524 : {
1525 1369 : struct wpa_supplicant *wpa_s = ctx;
1526 1369 : int listen_freq = -1, send_freq = -1;
1527 :
1528 1369 : if (wpa_s->p2p_listen_work)
1529 372 : listen_freq = wpa_s->p2p_listen_work->freq;
1530 1369 : if (wpa_s->p2p_send_action_work)
1531 143 : send_freq = wpa_s->p2p_send_action_work->freq;
1532 1369 : if (listen_freq != (int) freq && send_freq != (int) freq) {
1533 859 : wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1534 : listen_freq, send_freq);
1535 859 : return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1536 : len, wait_time);
1537 : }
1538 :
1539 510 : wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
1540 510 : return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1541 : wait_time,
1542 : wpas_p2p_send_action_tx_status, 1);
1543 : }
1544 :
1545 :
1546 946 : static void wpas_send_action_done(void *ctx)
1547 : {
1548 946 : struct wpa_supplicant *wpa_s = ctx;
1549 :
1550 946 : if (wpa_s->p2p_send_action_work) {
1551 705 : eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1552 : wpa_s, NULL);
1553 705 : os_free(wpa_s->p2p_send_action_work->ctx);
1554 705 : radio_work_done(wpa_s->p2p_send_action_work);
1555 705 : wpa_s->p2p_send_action_work = NULL;
1556 : }
1557 :
1558 946 : offchannel_send_action_done(wpa_s);
1559 946 : }
1560 :
1561 :
1562 505 : static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1563 : struct p2p_go_neg_results *params)
1564 : {
1565 505 : if (wpa_s->go_params == NULL) {
1566 505 : wpa_s->go_params = os_malloc(sizeof(*params));
1567 505 : if (wpa_s->go_params == NULL)
1568 0 : return -1;
1569 : }
1570 505 : os_memcpy(wpa_s->go_params, params, sizeof(*params));
1571 505 : return 0;
1572 : }
1573 :
1574 :
1575 185 : static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1576 : struct p2p_go_neg_results *res)
1577 : {
1578 185 : wpa_s->group_formation_reported = 0;
1579 2220 : wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
1580 : " dev_addr " MACSTR " wps_method %d",
1581 1110 : MAC2STR(res->peer_interface_addr),
1582 1110 : MAC2STR(res->peer_device_addr), res->wps_method);
1583 370 : wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1584 185 : res->ssid, res->ssid_len);
1585 185 : wpa_supplicant_ap_deinit(wpa_s);
1586 185 : wpas_copy_go_neg_results(wpa_s, res);
1587 185 : if (res->wps_method == WPS_PBC) {
1588 27 : wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
1589 : #ifdef CONFIG_WPS_NFC
1590 158 : } else if (res->wps_method == WPS_NFC) {
1591 55 : wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1592 16 : res->peer_interface_addr,
1593 16 : wpa_s->parent->p2p_oob_dev_pw,
1594 16 : wpa_s->parent->p2p_oob_dev_pw_id, 1,
1595 16 : wpa_s->parent->p2p_oob_dev_pw_id ==
1596 : DEV_PW_NFC_CONNECTION_HANDOVER ?
1597 7 : wpa_s->parent->p2p_peer_oob_pubkey_hash :
1598 : NULL,
1599 : NULL, 0, 0);
1600 : #endif /* CONFIG_WPS_NFC */
1601 : } else {
1602 142 : u16 dev_pw_id = DEV_PW_DEFAULT;
1603 142 : if (wpa_s->p2p_wps_method == WPS_P2PS)
1604 10 : dev_pw_id = DEV_PW_P2PS_DEFAULT;
1605 142 : if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1606 72 : dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
1607 284 : wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
1608 142 : wpa_s->p2p_pin, 1, dev_pw_id);
1609 : }
1610 185 : }
1611 :
1612 :
1613 53 : static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1614 : struct wpa_ssid *ssid)
1615 : {
1616 : struct wpa_ssid *persistent;
1617 : struct psk_list_entry *psk;
1618 : struct hostapd_data *hapd;
1619 :
1620 53 : if (!wpa_s->ap_iface)
1621 0 : return;
1622 :
1623 53 : persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1624 : ssid->ssid_len);
1625 53 : if (persistent == NULL)
1626 0 : return;
1627 :
1628 53 : hapd = wpa_s->ap_iface->bss[0];
1629 :
1630 55 : dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1631 : list) {
1632 : struct hostapd_wpa_psk *hpsk;
1633 :
1634 2 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1635 : MACSTR " psk=%d",
1636 : MAC2STR(psk->addr), psk->p2p);
1637 2 : hpsk = os_zalloc(sizeof(*hpsk));
1638 2 : if (hpsk == NULL)
1639 0 : break;
1640 2 : os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1641 2 : if (psk->p2p)
1642 2 : os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1643 : else
1644 0 : os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1645 2 : hpsk->next = hapd->conf->ssid.wpa_psk;
1646 2 : hapd->conf->ssid.wpa_psk = hpsk;
1647 : }
1648 : }
1649 :
1650 :
1651 16621 : static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1652 : {
1653 : unsigned int i;
1654 :
1655 16621 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1656 : wpa_s->p2p_group_common_freqs_num);
1657 :
1658 192256 : for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1659 175635 : wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1660 : i, wpa_s->p2p_group_common_freqs[i]);
1661 16621 : }
1662 :
1663 :
1664 320 : static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1665 : struct p2p_go_neg_results *params)
1666 : {
1667 320 : unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1668 :
1669 320 : wpa_s->p2p_group_common_freqs_num = 0;
1670 320 : os_free(wpa_s->p2p_group_common_freqs);
1671 320 : wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1672 320 : if (!wpa_s->p2p_group_common_freqs)
1673 320 : return;
1674 :
1675 1439 : for (i = 0; i < len; i++) {
1676 1119 : if (!wpa_s->go_params->freq_list[i])
1677 0 : break;
1678 2238 : wpa_s->p2p_group_common_freqs[i] =
1679 1119 : wpa_s->go_params->freq_list[i];
1680 : }
1681 320 : wpa_s->p2p_group_common_freqs_num = i;
1682 : }
1683 :
1684 :
1685 0 : static void p2p_config_write(struct wpa_supplicant *wpa_s)
1686 : {
1687 : #ifndef CONFIG_NO_CONFIG_WRITE
1688 0 : if (wpa_s->parent->conf->update_config &&
1689 0 : wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1690 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1691 : #endif /* CONFIG_NO_CONFIG_WRITE */
1692 0 : }
1693 :
1694 :
1695 320 : static void p2p_go_configured(void *ctx, void *data)
1696 : {
1697 320 : struct wpa_supplicant *wpa_s = ctx;
1698 320 : struct p2p_go_neg_results *params = data;
1699 : struct wpa_ssid *ssid;
1700 320 : int network_id = -1;
1701 :
1702 320 : p2p_go_save_group_common_freqs(wpa_s, params);
1703 320 : p2p_go_dump_common_freqs(wpa_s);
1704 :
1705 320 : ssid = wpa_s->current_ssid;
1706 320 : if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1707 209 : wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
1708 209 : if (wpa_s->global->p2p_group_formation == wpa_s)
1709 89 : wpa_s->global->p2p_group_formation = NULL;
1710 418 : wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1711 209 : params->passphrase[0] == '\0' ?
1712 : params->psk : NULL,
1713 209 : params->passphrase,
1714 209 : wpa_s->global->p2p_dev_addr,
1715 : params->persistent_group, "");
1716 209 : wpa_s->group_formation_reported = 1;
1717 :
1718 209 : if (wpa_s->parent->p2ps_method_config_any) {
1719 8 : if (is_zero_ether_addr(wpa_s->parent->p2ps_join_addr)) {
1720 6 : wpa_dbg(wpa_s, MSG_DEBUG,
1721 : "P2PS: Setting default PIN for ANY");
1722 6 : wpa_supplicant_ap_wps_pin(wpa_s, NULL,
1723 : "12345670", NULL, 0,
1724 : 0);
1725 : } else {
1726 2 : wpa_dbg(wpa_s, MSG_DEBUG,
1727 : "P2PS: Setting default PIN for " MACSTR,
1728 : MAC2STR(wpa_s->parent->p2ps_join_addr));
1729 2 : wpa_supplicant_ap_wps_pin(
1730 2 : wpa_s, wpa_s->parent->p2ps_join_addr,
1731 : "12345670", NULL, 0, 0);
1732 : }
1733 8 : wpa_s->parent->p2ps_method_config_any = 0;
1734 : }
1735 :
1736 209 : os_get_reltime(&wpa_s->global->p2p_go_wait_client);
1737 209 : if (params->persistent_group) {
1738 53 : network_id = wpas_p2p_store_persistent_group(
1739 : wpa_s->parent, ssid,
1740 53 : wpa_s->global->p2p_dev_addr);
1741 53 : wpas_p2p_add_psk_list(wpa_s, ssid);
1742 : }
1743 209 : if (network_id < 0)
1744 156 : network_id = ssid->id;
1745 209 : wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
1746 209 : wpas_p2p_cross_connect_setup(wpa_s);
1747 209 : wpas_p2p_set_group_idle_timeout(wpa_s);
1748 :
1749 209 : if (wpa_s->p2p_first_connection_timeout) {
1750 25 : wpa_dbg(wpa_s, MSG_DEBUG,
1751 : "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1752 : wpa_s->p2p_first_connection_timeout);
1753 25 : wpa_s->p2p_go_group_formation_completed = 0;
1754 25 : wpa_s->global->p2p_group_formation = wpa_s;
1755 25 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1756 25 : wpa_s->parent, NULL);
1757 25 : eloop_register_timeout(
1758 25 : wpa_s->p2p_first_connection_timeout, 0,
1759 : wpas_p2p_group_formation_timeout,
1760 25 : wpa_s->parent, NULL);
1761 : }
1762 :
1763 209 : return;
1764 : }
1765 :
1766 111 : wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1767 111 : if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1768 111 : params->peer_interface_addr)) {
1769 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1770 : "filtering");
1771 0 : return;
1772 : }
1773 111 : if (params->wps_method == WPS_PBC) {
1774 22 : wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
1775 22 : params->peer_device_addr);
1776 : #ifdef CONFIG_WPS_NFC
1777 89 : } else if (params->wps_method == WPS_NFC) {
1778 9 : if (wpa_s->parent->p2p_oob_dev_pw_id !=
1779 4 : DEV_PW_NFC_CONNECTION_HANDOVER &&
1780 4 : !wpa_s->parent->p2p_oob_dev_pw) {
1781 0 : wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1782 0 : return;
1783 : }
1784 25 : wpas_ap_wps_add_nfc_pw(
1785 9 : wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1786 9 : wpa_s->parent->p2p_oob_dev_pw,
1787 9 : wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1788 7 : wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1789 : #endif /* CONFIG_WPS_NFC */
1790 80 : } else if (wpa_s->p2p_pin[0])
1791 80 : wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
1792 80 : wpa_s->p2p_pin, NULL, 0, 0);
1793 111 : os_free(wpa_s->go_params);
1794 111 : wpa_s->go_params = NULL;
1795 : }
1796 :
1797 :
1798 320 : static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1799 : struct p2p_go_neg_results *params,
1800 : int group_formation)
1801 : {
1802 : struct wpa_ssid *ssid;
1803 :
1804 320 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1805 320 : if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1806 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1807 : "results");
1808 0 : return;
1809 : }
1810 :
1811 320 : ssid = wpa_config_add_network(wpa_s->conf);
1812 320 : if (ssid == NULL) {
1813 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
1814 0 : return;
1815 : }
1816 :
1817 320 : wpa_s->show_group_started = 0;
1818 320 : wpa_s->p2p_go_group_formation_completed = 0;
1819 320 : wpa_s->group_formation_reported = 0;
1820 320 : os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1821 :
1822 320 : wpa_config_set_network_defaults(ssid);
1823 320 : ssid->temporary = 1;
1824 320 : ssid->p2p_group = 1;
1825 320 : ssid->p2p_persistent_group = params->persistent_group;
1826 320 : ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1827 : WPAS_MODE_P2P_GO;
1828 320 : ssid->frequency = params->freq;
1829 320 : ssid->ht40 = params->ht40;
1830 320 : ssid->vht = params->vht;
1831 320 : ssid->ssid = os_zalloc(params->ssid_len + 1);
1832 320 : if (ssid->ssid) {
1833 320 : os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1834 320 : ssid->ssid_len = params->ssid_len;
1835 : }
1836 320 : ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1837 320 : ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1838 320 : ssid->proto = WPA_PROTO_RSN;
1839 320 : ssid->pairwise_cipher = WPA_CIPHER_CCMP;
1840 320 : ssid->group_cipher = WPA_CIPHER_CCMP;
1841 320 : if (params->freq > 56160) {
1842 : /*
1843 : * Enable GCMP instead of CCMP as pairwise_cipher and
1844 : * group_cipher in 60 GHz.
1845 : */
1846 0 : ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1847 0 : ssid->group_cipher = WPA_CIPHER_GCMP;
1848 : }
1849 320 : if (os_strlen(params->passphrase) > 0) {
1850 320 : ssid->passphrase = os_strdup(params->passphrase);
1851 320 : if (ssid->passphrase == NULL) {
1852 0 : wpa_msg_global(wpa_s, MSG_ERROR,
1853 : "P2P: Failed to copy passphrase for GO");
1854 0 : wpa_config_remove_network(wpa_s->conf, ssid->id);
1855 0 : return;
1856 : }
1857 : } else
1858 0 : ssid->passphrase = NULL;
1859 320 : ssid->psk_set = params->psk_set;
1860 320 : if (ssid->psk_set)
1861 34 : os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
1862 286 : else if (ssid->passphrase)
1863 286 : wpa_config_update_psk(ssid);
1864 320 : ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
1865 :
1866 320 : wpa_s->ap_configured_cb = p2p_go_configured;
1867 320 : wpa_s->ap_configured_cb_ctx = wpa_s;
1868 320 : wpa_s->ap_configured_cb_data = wpa_s->go_params;
1869 320 : wpa_s->scan_req = NORMAL_SCAN_REQ;
1870 320 : wpa_s->connect_without_scan = ssid;
1871 320 : wpa_s->reassociate = 1;
1872 320 : wpa_s->disconnected = 0;
1873 320 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1874 : "start GO)");
1875 320 : wpa_supplicant_req_scan(wpa_s, 0, 0);
1876 : }
1877 :
1878 :
1879 136 : static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1880 : const struct wpa_supplicant *src)
1881 : {
1882 : struct wpa_config *d;
1883 : const struct wpa_config *s;
1884 :
1885 136 : d = dst->conf;
1886 136 : s = src->conf;
1887 :
1888 : #define C(n) if (s->n) d->n = os_strdup(s->n)
1889 136 : C(device_name);
1890 136 : C(manufacturer);
1891 136 : C(model_name);
1892 136 : C(model_number);
1893 136 : C(serial_number);
1894 136 : C(config_methods);
1895 : #undef C
1896 :
1897 136 : os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1898 136 : os_memcpy(d->sec_device_type, s->sec_device_type,
1899 : sizeof(d->sec_device_type));
1900 136 : d->num_sec_device_types = s->num_sec_device_types;
1901 :
1902 136 : d->p2p_group_idle = s->p2p_group_idle;
1903 136 : d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
1904 136 : d->p2p_intra_bss = s->p2p_intra_bss;
1905 136 : d->persistent_reconnect = s->persistent_reconnect;
1906 136 : d->max_num_sta = s->max_num_sta;
1907 136 : d->pbc_in_m1 = s->pbc_in_m1;
1908 136 : d->ignore_old_scan_res = s->ignore_old_scan_res;
1909 136 : d->beacon_int = s->beacon_int;
1910 136 : d->dtim_period = s->dtim_period;
1911 136 : d->p2p_go_ctwindow = s->p2p_go_ctwindow;
1912 136 : d->disassoc_low_ack = s->disassoc_low_ack;
1913 136 : d->disable_scan_offload = s->disable_scan_offload;
1914 136 : d->passive_scan = s->passive_scan;
1915 :
1916 136 : if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1917 43 : d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1918 43 : d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1919 : }
1920 136 : d->p2p_cli_probe = s->p2p_cli_probe;
1921 136 : }
1922 :
1923 :
1924 143 : static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1925 : char *ifname, size_t len)
1926 : {
1927 143 : char *ifname_ptr = wpa_s->ifname;
1928 :
1929 143 : if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1930 : os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1931 7 : ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1932 : }
1933 :
1934 143 : os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1935 143 : if (os_strlen(ifname) >= IFNAMSIZ &&
1936 0 : os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1937 : int res;
1938 :
1939 : /* Try to avoid going over the IFNAMSIZ length limit */
1940 0 : res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1941 0 : if (os_snprintf_error(len, res) && len)
1942 0 : ifname[len - 1] = '\0';
1943 : }
1944 143 : }
1945 :
1946 :
1947 149 : static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1948 : enum wpa_driver_if_type type)
1949 : {
1950 : char ifname[120], force_ifname[120];
1951 :
1952 149 : if (wpa_s->pending_interface_name[0]) {
1953 6 : wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1954 : "- skip creation of a new one");
1955 6 : if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1956 0 : wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1957 : "unknown?! ifname='%s'",
1958 0 : wpa_s->pending_interface_name);
1959 0 : return -1;
1960 : }
1961 6 : return 0;
1962 : }
1963 :
1964 143 : wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
1965 143 : force_ifname[0] = '\0';
1966 :
1967 143 : wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1968 : ifname);
1969 143 : wpa_s->p2p_group_idx++;
1970 :
1971 143 : wpa_s->pending_interface_type = type;
1972 143 : if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1973 143 : wpa_s->pending_interface_addr, NULL) < 0) {
1974 1 : wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1975 : "interface");
1976 1 : return -1;
1977 : }
1978 :
1979 142 : if (force_ifname[0]) {
1980 0 : wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1981 : force_ifname);
1982 0 : os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1983 : sizeof(wpa_s->pending_interface_name));
1984 : } else
1985 142 : os_strlcpy(wpa_s->pending_interface_name, ifname,
1986 : sizeof(wpa_s->pending_interface_name));
1987 994 : wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1988 142 : MACSTR, wpa_s->pending_interface_name,
1989 852 : MAC2STR(wpa_s->pending_interface_addr));
1990 :
1991 142 : return 0;
1992 : }
1993 :
1994 :
1995 15544 : static void wpas_p2p_remove_pending_group_interface(
1996 : struct wpa_supplicant *wpa_s)
1997 : {
1998 15550 : if (!wpa_s->pending_interface_name[0] ||
1999 6 : is_zero_ether_addr(wpa_s->pending_interface_addr))
2000 31082 : return; /* No pending virtual interface */
2001 :
2002 6 : wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2003 6 : wpa_s->pending_interface_name);
2004 6 : wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2005 6 : wpa_s->pending_interface_name);
2006 6 : os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2007 6 : wpa_s->pending_interface_name[0] = '\0';
2008 6 : wpa_s->global->pending_group_iface_for_p2ps = 0;
2009 : }
2010 :
2011 :
2012 : static struct wpa_supplicant *
2013 136 : wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2014 : {
2015 : struct wpa_interface iface;
2016 : struct wpa_supplicant *group_wpa_s;
2017 :
2018 136 : if (!wpa_s->pending_interface_name[0]) {
2019 0 : wpa_printf(MSG_ERROR, "P2P: No pending group interface");
2020 0 : if (!wpas_p2p_create_iface(wpa_s))
2021 0 : return NULL;
2022 : /*
2023 : * Something has forced us to remove the pending interface; try
2024 : * to create a new one and hope for the best that we will get
2025 : * the same local address.
2026 : */
2027 0 : if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2028 : WPA_IF_P2P_CLIENT) < 0)
2029 0 : return NULL;
2030 : }
2031 :
2032 136 : os_memset(&iface, 0, sizeof(iface));
2033 136 : iface.ifname = wpa_s->pending_interface_name;
2034 136 : iface.driver = wpa_s->driver->name;
2035 136 : if (wpa_s->conf->ctrl_interface == NULL &&
2036 0 : wpa_s->parent != wpa_s &&
2037 0 : wpa_s->p2p_mgmt &&
2038 0 : (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2039 0 : iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2040 : else
2041 136 : iface.ctrl_interface = wpa_s->conf->ctrl_interface;
2042 136 : iface.driver_param = wpa_s->conf->driver_param;
2043 136 : group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
2044 136 : if (group_wpa_s == NULL) {
2045 0 : wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2046 : "wpa_supplicant interface");
2047 0 : return NULL;
2048 : }
2049 136 : wpa_s->pending_interface_name[0] = '\0';
2050 136 : group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2051 : P2P_GROUP_INTERFACE_CLIENT;
2052 136 : wpa_s->global->p2p_group_formation = group_wpa_s;
2053 136 : wpa_s->global->pending_group_iface_for_p2ps = 0;
2054 :
2055 136 : wpas_p2p_clone_config(group_wpa_s, wpa_s);
2056 :
2057 136 : return group_wpa_s;
2058 : }
2059 :
2060 :
2061 7 : static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2062 : void *timeout_ctx)
2063 : {
2064 7 : struct wpa_supplicant *wpa_s = eloop_ctx;
2065 7 : wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
2066 7 : wpas_p2p_group_formation_failed(wpa_s, 0);
2067 7 : }
2068 :
2069 :
2070 24 : static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2071 : int already_deleted)
2072 : {
2073 24 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2074 24 : wpa_s->parent, NULL);
2075 24 : if (wpa_s->global->p2p)
2076 24 : p2p_group_formation_failed(wpa_s->global->p2p);
2077 24 : wpas_group_formation_completed(wpa_s, 0, already_deleted);
2078 24 : }
2079 :
2080 :
2081 7 : static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2082 : {
2083 7 : wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2084 7 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2085 7 : wpa_s->parent, NULL);
2086 7 : eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2087 7 : wpa_s->parent, NULL);
2088 7 : wpa_s->global->p2p_fail_on_wps_complete = 0;
2089 7 : }
2090 :
2091 :
2092 0 : void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2093 : {
2094 0 : if (wpa_s->global->p2p_group_formation != wpa_s)
2095 0 : return;
2096 : /* Speed up group formation timeout since this cannot succeed */
2097 0 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2098 0 : wpa_s->parent, NULL);
2099 0 : eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2100 0 : wpa_s->parent, NULL);
2101 : }
2102 :
2103 :
2104 246 : static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
2105 : {
2106 246 : struct wpa_supplicant *wpa_s = ctx;
2107 :
2108 246 : if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2109 108 : wpa_drv_cancel_remain_on_channel(wpa_s);
2110 108 : wpa_s->off_channel_freq = 0;
2111 108 : wpa_s->roc_waiting_drv_freq = 0;
2112 : }
2113 :
2114 246 : if (res->status) {
2115 24 : wpa_msg_global(wpa_s, MSG_INFO,
2116 : P2P_EVENT_GO_NEG_FAILURE "status=%d",
2117 : res->status);
2118 24 : wpas_notify_p2p_go_neg_completed(wpa_s, res);
2119 24 : wpas_p2p_remove_pending_group_interface(wpa_s);
2120 24 : return;
2121 : }
2122 :
2123 222 : if (!res->role_go) {
2124 : /* Inform driver of the operating channel of GO. */
2125 111 : wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2126 : }
2127 :
2128 222 : if (wpa_s->p2p_go_ht40)
2129 16 : res->ht40 = 1;
2130 222 : if (wpa_s->p2p_go_vht)
2131 16 : res->vht = 1;
2132 :
2133 3108 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2134 : "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2135 : " wps_method=%s",
2136 222 : res->role_go ? "GO" : "client", res->freq, res->ht40,
2137 1332 : MAC2STR(res->peer_device_addr),
2138 1332 : MAC2STR(res->peer_interface_addr),
2139 : p2p_wps_method_text(res->wps_method));
2140 222 : wpas_notify_p2p_go_neg_completed(wpa_s, res);
2141 :
2142 222 : if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2143 : struct wpa_ssid *ssid;
2144 1 : ssid = wpa_config_get_network(wpa_s->conf,
2145 : wpa_s->p2p_persistent_id);
2146 2 : if (ssid && ssid->disabled == 2 &&
2147 2 : ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2148 1 : size_t len = os_strlen(ssid->passphrase);
2149 1 : wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2150 : "on requested persistent group");
2151 1 : os_memcpy(res->passphrase, ssid->passphrase, len);
2152 1 : res->passphrase[len] = '\0';
2153 : }
2154 : }
2155 :
2156 222 : if (wpa_s->create_p2p_iface) {
2157 32 : struct wpa_supplicant *group_wpa_s =
2158 32 : wpas_p2p_init_group_interface(wpa_s, res->role_go);
2159 32 : if (group_wpa_s == NULL) {
2160 0 : wpas_p2p_remove_pending_group_interface(wpa_s);
2161 0 : eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2162 : wpa_s, NULL);
2163 0 : wpas_p2p_group_formation_failed(wpa_s, 1);
2164 0 : return;
2165 : }
2166 32 : if (group_wpa_s != wpa_s) {
2167 32 : os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2168 : sizeof(group_wpa_s->p2p_pin));
2169 32 : group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2170 : }
2171 32 : os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2172 32 : wpa_s->pending_interface_name[0] = '\0';
2173 32 : group_wpa_s->p2p_in_provisioning = 1;
2174 :
2175 32 : if (res->role_go) {
2176 15 : wpas_start_wps_go(group_wpa_s, res, 1);
2177 : } else {
2178 17 : os_get_reltime(&group_wpa_s->scan_min_time);
2179 17 : wpas_start_wps_enrollee(group_wpa_s, res);
2180 : }
2181 : } else {
2182 190 : wpa_s->p2p_in_provisioning = 1;
2183 190 : wpa_s->global->p2p_group_formation = wpa_s;
2184 :
2185 190 : if (res->role_go) {
2186 96 : wpas_start_wps_go(wpa_s, res, 1);
2187 : } else {
2188 94 : os_get_reltime(&wpa_s->scan_min_time);
2189 94 : wpas_start_wps_enrollee(ctx, res);
2190 : }
2191 : }
2192 :
2193 222 : wpa_s->p2p_long_listen = 0;
2194 222 : eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2195 :
2196 222 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2197 222 : eloop_register_timeout(15 + res->peer_config_timeout / 100,
2198 222 : (res->peer_config_timeout % 100) * 10000,
2199 : wpas_p2p_group_formation_timeout, wpa_s, NULL);
2200 : }
2201 :
2202 :
2203 39 : static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2204 : u8 go_intent)
2205 : {
2206 39 : struct wpa_supplicant *wpa_s = ctx;
2207 273 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
2208 234 : " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2209 : dev_passwd_id, go_intent);
2210 :
2211 39 : wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
2212 39 : }
2213 :
2214 :
2215 592 : static void wpas_dev_found(void *ctx, const u8 *addr,
2216 : const struct p2p_peer_info *info,
2217 : int new_device)
2218 : {
2219 : #ifndef CONFIG_NO_STDOUT_DEBUG
2220 592 : struct wpa_supplicant *wpa_s = ctx;
2221 : char devtype[WPS_DEV_TYPE_BUFSIZE];
2222 592 : char *wfd_dev_info_hex = NULL;
2223 :
2224 : #ifdef CONFIG_WIFI_DISPLAY
2225 592 : wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2226 : WFD_SUBELEM_DEVICE_INFO);
2227 : #endif /* CONFIG_WIFI_DISPLAY */
2228 :
2229 592 : if (info->p2ps_instance) {
2230 : char str[256];
2231 38 : const u8 *buf = wpabuf_head(info->p2ps_instance);
2232 38 : size_t len = wpabuf_len(info->p2ps_instance);
2233 :
2234 118 : while (len) {
2235 : u32 id;
2236 : u16 methods;
2237 : u8 str_len;
2238 :
2239 42 : if (len < 4 + 2 + 1)
2240 0 : break;
2241 42 : id = WPA_GET_LE32(buf);
2242 42 : buf += sizeof(u32);
2243 42 : methods = WPA_GET_BE16(buf);
2244 42 : buf += sizeof(u16);
2245 42 : str_len = *buf++;
2246 42 : if (str_len > len - 4 - 2 - 1)
2247 0 : break;
2248 42 : os_memcpy(str, buf, str_len);
2249 42 : str[str_len] = '\0';
2250 42 : buf += str_len;
2251 42 : len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2252 :
2253 672 : wpa_msg_global(wpa_s, MSG_INFO,
2254 : P2P_EVENT_DEVICE_FOUND MACSTR
2255 : " p2p_dev_addr=" MACSTR
2256 : " pri_dev_type=%s name='%s'"
2257 : " config_methods=0x%x"
2258 : " dev_capab=0x%x"
2259 : " group_capab=0x%x"
2260 : " adv_id=%x asp_svc=%s%s",
2261 252 : MAC2STR(addr),
2262 252 : MAC2STR(info->p2p_device_addr),
2263 : wps_dev_type_bin2str(
2264 42 : info->pri_dev_type,
2265 : devtype, sizeof(devtype)),
2266 42 : info->device_name, methods,
2267 84 : info->dev_capab, info->group_capab,
2268 : id, str,
2269 42 : info->vendor_elems ?
2270 : " vendor_elems=1" : "");
2271 : }
2272 38 : goto done;
2273 : }
2274 :
2275 9418 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2276 : " p2p_dev_addr=" MACSTR
2277 : " pri_dev_type=%s name='%s' config_methods=0x%x "
2278 : "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
2279 6648 : MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2280 554 : wps_dev_type_bin2str(info->pri_dev_type, devtype,
2281 : sizeof(devtype)),
2282 1108 : info->device_name, info->config_methods,
2283 1108 : info->dev_capab, info->group_capab,
2284 : wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
2285 : wfd_dev_info_hex ? wfd_dev_info_hex : "",
2286 554 : info->vendor_elems ? " vendor_elems=1" : "",
2287 : new_device);
2288 :
2289 : done:
2290 592 : os_free(wfd_dev_info_hex);
2291 : #endif /* CONFIG_NO_STDOUT_DEBUG */
2292 :
2293 592 : wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
2294 592 : }
2295 :
2296 :
2297 567 : static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2298 : {
2299 567 : struct wpa_supplicant *wpa_s = ctx;
2300 :
2301 3402 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2302 3402 : "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
2303 :
2304 567 : wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2305 567 : }
2306 :
2307 :
2308 375 : static void wpas_find_stopped(void *ctx)
2309 : {
2310 375 : struct wpa_supplicant *wpa_s = ctx;
2311 375 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
2312 375 : wpas_notify_p2p_find_stopped(wpa_s);
2313 375 : }
2314 :
2315 :
2316 : struct wpas_p2p_listen_work {
2317 : unsigned int freq;
2318 : unsigned int duration;
2319 : struct wpabuf *probe_resp_ie;
2320 : };
2321 :
2322 :
2323 1801 : static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
2324 : {
2325 1801 : if (lwork == NULL)
2326 1801 : return;
2327 1801 : wpabuf_free(lwork->probe_resp_ie);
2328 1801 : os_free(lwork);
2329 : }
2330 :
2331 :
2332 29083 : static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2333 : {
2334 : struct wpas_p2p_listen_work *lwork;
2335 :
2336 29083 : if (!wpa_s->p2p_listen_work)
2337 56368 : return;
2338 :
2339 1798 : lwork = wpa_s->p2p_listen_work->ctx;
2340 1798 : wpas_p2p_listen_work_free(lwork);
2341 1798 : radio_work_done(wpa_s->p2p_listen_work);
2342 1798 : wpa_s->p2p_listen_work = NULL;
2343 : }
2344 :
2345 :
2346 1801 : static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2347 : {
2348 1801 : struct wpa_supplicant *wpa_s = work->wpa_s;
2349 1801 : struct wpas_p2p_listen_work *lwork = work->ctx;
2350 : unsigned int duration;
2351 :
2352 1801 : if (deinit) {
2353 3 : if (work->started) {
2354 0 : wpa_s->p2p_listen_work = NULL;
2355 0 : wpas_stop_listen(wpa_s);
2356 : }
2357 3 : wpas_p2p_listen_work_free(lwork);
2358 3 : return;
2359 : }
2360 :
2361 1798 : wpa_s->p2p_listen_work = work;
2362 :
2363 1798 : wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
2364 :
2365 1798 : if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2366 5 : wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2367 : "report received Probe Request frames");
2368 5 : wpas_p2p_listen_work_done(wpa_s);
2369 5 : return;
2370 : }
2371 :
2372 1793 : wpa_s->pending_listen_freq = lwork->freq;
2373 1793 : wpa_s->pending_listen_duration = lwork->duration;
2374 :
2375 1793 : duration = lwork->duration;
2376 : #ifdef CONFIG_TESTING_OPTIONS
2377 1793 : if (wpa_s->extra_roc_dur) {
2378 8 : wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2379 8 : duration, duration + wpa_s->extra_roc_dur);
2380 8 : duration += wpa_s->extra_roc_dur;
2381 : }
2382 : #endif /* CONFIG_TESTING_OPTIONS */
2383 :
2384 1793 : if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
2385 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2386 : "to remain on channel (%u MHz) for Listen "
2387 : "state", lwork->freq);
2388 0 : wpas_p2p_listen_work_done(wpa_s);
2389 0 : wpa_s->pending_listen_freq = 0;
2390 0 : return;
2391 : }
2392 1793 : wpa_s->off_channel_freq = 0;
2393 1793 : wpa_s->roc_waiting_drv_freq = lwork->freq;
2394 : }
2395 :
2396 :
2397 2105 : static int wpas_start_listen(void *ctx, unsigned int freq,
2398 : unsigned int duration,
2399 : const struct wpabuf *probe_resp_ie)
2400 : {
2401 2105 : struct wpa_supplicant *wpa_s = ctx;
2402 : struct wpas_p2p_listen_work *lwork;
2403 :
2404 2105 : if (wpa_s->p2p_listen_work) {
2405 304 : wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2406 304 : return -1;
2407 : }
2408 :
2409 1801 : lwork = os_zalloc(sizeof(*lwork));
2410 1801 : if (lwork == NULL)
2411 0 : return -1;
2412 1801 : lwork->freq = freq;
2413 1801 : lwork->duration = duration;
2414 1801 : if (probe_resp_ie) {
2415 1801 : lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2416 1801 : if (lwork->probe_resp_ie == NULL) {
2417 0 : wpas_p2p_listen_work_free(lwork);
2418 0 : return -1;
2419 : }
2420 : }
2421 :
2422 1801 : if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2423 : lwork) < 0) {
2424 0 : wpas_p2p_listen_work_free(lwork);
2425 0 : return -1;
2426 : }
2427 :
2428 1801 : return 0;
2429 : }
2430 :
2431 :
2432 26772 : static void wpas_stop_listen(void *ctx)
2433 : {
2434 26772 : struct wpa_supplicant *wpa_s = ctx;
2435 26772 : if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2436 720 : wpa_drv_cancel_remain_on_channel(wpa_s);
2437 720 : wpa_s->off_channel_freq = 0;
2438 720 : wpa_s->roc_waiting_drv_freq = 0;
2439 : }
2440 26772 : wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
2441 :
2442 : /*
2443 : * Don't cancel Probe Request RX reporting for a connected P2P Client
2444 : * handling Probe Request frames.
2445 : */
2446 26772 : if (!wpa_s->p2p_cli_probe)
2447 26772 : wpa_drv_probe_req_report(wpa_s, 0);
2448 :
2449 26772 : wpas_p2p_listen_work_done(wpa_s);
2450 26772 : }
2451 :
2452 :
2453 743 : static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2454 : unsigned int freq)
2455 : {
2456 743 : struct wpa_supplicant *wpa_s = ctx;
2457 743 : return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2458 : freq);
2459 : }
2460 :
2461 :
2462 73 : static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2463 : const u8 *peer, const char *params,
2464 : unsigned int generated_pin)
2465 : {
2466 438 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2467 438 : " %08d%s", MAC2STR(peer), generated_pin, params);
2468 73 : }
2469 :
2470 :
2471 25 : static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2472 : const u8 *peer, const char *params)
2473 : {
2474 150 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2475 150 : "%s", MAC2STR(peer), params);
2476 25 : }
2477 :
2478 :
2479 89 : static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2480 : const u8 *dev_addr, const u8 *pri_dev_type,
2481 : const char *dev_name, u16 supp_config_methods,
2482 : u8 dev_capab, u8 group_capab, const u8 *group_id,
2483 : size_t group_id_len)
2484 : {
2485 89 : struct wpa_supplicant *wpa_s = ctx;
2486 : char devtype[WPS_DEV_TYPE_BUFSIZE];
2487 : char params[300];
2488 : u8 empty_dev_type[8];
2489 89 : unsigned int generated_pin = 0;
2490 89 : struct wpa_supplicant *group = NULL;
2491 : int res;
2492 :
2493 89 : if (group_id) {
2494 96 : for (group = wpa_s->global->ifaces; group; group = group->next)
2495 : {
2496 77 : struct wpa_ssid *s = group->current_ssid;
2497 135 : if (s != NULL &&
2498 116 : s->mode == WPAS_MODE_P2P_GO &&
2499 116 : group_id_len - ETH_ALEN == s->ssid_len &&
2500 58 : os_memcmp(group_id + ETH_ALEN, s->ssid,
2501 : s->ssid_len) == 0)
2502 58 : break;
2503 : }
2504 : }
2505 :
2506 89 : if (pri_dev_type == NULL) {
2507 0 : os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2508 0 : pri_dev_type = empty_dev_type;
2509 : }
2510 623 : res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2511 : " pri_dev_type=%s name='%s' config_methods=0x%x "
2512 : "dev_capab=0x%x group_capab=0x%x%s%s",
2513 534 : MAC2STR(dev_addr),
2514 : wps_dev_type_bin2str(pri_dev_type, devtype,
2515 : sizeof(devtype)),
2516 : dev_name, supp_config_methods, dev_capab, group_capab,
2517 : group ? " group=" : "",
2518 : group ? group->ifname : "");
2519 89 : if (os_snprintf_error(sizeof(params), res))
2520 0 : wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
2521 89 : params[sizeof(params) - 1] = '\0';
2522 :
2523 89 : if (config_methods & WPS_CONFIG_DISPLAY) {
2524 70 : generated_pin = wps_generate_pin();
2525 70 : wpas_prov_disc_local_display(wpa_s, peer, params,
2526 : generated_pin);
2527 19 : } else if (config_methods & WPS_CONFIG_KEYPAD)
2528 11 : wpas_prov_disc_local_keypad(wpa_s, peer, params);
2529 8 : else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2530 48 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2531 48 : MACSTR "%s", MAC2STR(peer), params);
2532 :
2533 89 : wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2534 : P2P_PROV_DISC_SUCCESS,
2535 : config_methods, generated_pin);
2536 89 : }
2537 :
2538 :
2539 75 : static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2540 : {
2541 75 : struct wpa_supplicant *wpa_s = ctx;
2542 75 : unsigned int generated_pin = 0;
2543 : char params[20];
2544 :
2545 131 : if (wpa_s->pending_pd_before_join &&
2546 56 : (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2547 0 : os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2548 56 : wpa_s->pending_pd_before_join = 0;
2549 56 : wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2550 : "join-existing-group operation");
2551 56 : wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2552 131 : return;
2553 : }
2554 :
2555 37 : if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2556 20 : wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2557 : int res;
2558 :
2559 2 : res = os_snprintf(params, sizeof(params), " peer_go=%d",
2560 2 : wpa_s->pending_pd_use == AUTO_PD_JOIN);
2561 2 : if (os_snprintf_error(sizeof(params), res))
2562 0 : params[sizeof(params) - 1] = '\0';
2563 : } else
2564 17 : params[0] = '\0';
2565 :
2566 19 : if (config_methods & WPS_CONFIG_DISPLAY)
2567 14 : wpas_prov_disc_local_keypad(wpa_s, peer, params);
2568 5 : else if (config_methods & WPS_CONFIG_KEYPAD) {
2569 3 : generated_pin = wps_generate_pin();
2570 3 : wpas_prov_disc_local_display(wpa_s, peer, params,
2571 : generated_pin);
2572 2 : } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2573 6 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2574 6 : MACSTR "%s", MAC2STR(peer), params);
2575 :
2576 19 : wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2577 : P2P_PROV_DISC_SUCCESS,
2578 : config_methods, generated_pin);
2579 : }
2580 :
2581 :
2582 10 : static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2583 : enum p2p_prov_disc_status status,
2584 : u32 adv_id, const u8 *adv_mac,
2585 : const char *deferred_session_resp)
2586 : {
2587 10 : struct wpa_supplicant *wpa_s = ctx;
2588 :
2589 10 : if (wpa_s->p2p_fallback_to_go_neg) {
2590 1 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2591 : "failed - fall back to GO Negotiation");
2592 1 : wpa_msg_global(wpa_s->parent, MSG_INFO,
2593 : P2P_EVENT_FALLBACK_TO_GO_NEG
2594 : "reason=PD-failed");
2595 1 : wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2596 1 : return;
2597 : }
2598 :
2599 9 : if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2600 0 : wpa_s->pending_pd_before_join = 0;
2601 0 : wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2602 : "join-existing-group operation (no ACK for PD "
2603 : "Req attempts)");
2604 0 : wpas_p2p_join_start(wpa_s, 0, NULL, 0);
2605 0 : return;
2606 : }
2607 :
2608 9 : if (adv_id && adv_mac && deferred_session_resp) {
2609 0 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2610 : " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2611 : " deferred_session_resp='%s'",
2612 0 : MAC2STR(peer), status, adv_id,
2613 : deferred_session_resp);
2614 9 : } else if (adv_id && adv_mac) {
2615 42 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2616 : " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2617 42 : MAC2STR(peer), status, adv_id);
2618 : } else {
2619 12 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2620 : " p2p_dev_addr=" MACSTR " status=%d",
2621 12 : MAC2STR(peer), status);
2622 : }
2623 :
2624 9 : wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2625 : status, 0, 0);
2626 : }
2627 :
2628 :
2629 293 : static int freq_included(struct wpa_supplicant *wpa_s,
2630 : const struct p2p_channels *channels,
2631 : unsigned int freq)
2632 : {
2633 586 : if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2634 293 : wpas_p2p_go_is_peer_freq(wpa_s, freq))
2635 293 : return 1;
2636 0 : return 0;
2637 : }
2638 :
2639 :
2640 8004 : static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2641 : {
2642 8004 : unsigned int num = P2P_MAX_CHANNELS;
2643 : int *common_freqs;
2644 : int ret;
2645 :
2646 8004 : p2p_go_dump_common_freqs(wpa_s);
2647 8004 : common_freqs = os_calloc(num, sizeof(int));
2648 8004 : if (!common_freqs)
2649 0 : return;
2650 :
2651 8004 : ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2652 8004 : if (ret < 0) {
2653 0 : wpa_dbg(wpa_s, MSG_DEBUG,
2654 : "P2P: Failed to get group common freqs");
2655 0 : os_free(common_freqs);
2656 0 : return;
2657 : }
2658 :
2659 8004 : os_free(wpa_s->p2p_group_common_freqs);
2660 8004 : wpa_s->p2p_group_common_freqs = common_freqs;
2661 8004 : wpa_s->p2p_group_common_freqs_num = num;
2662 8004 : p2p_go_dump_common_freqs(wpa_s);
2663 : }
2664 :
2665 :
2666 : /*
2667 : * Check if the given frequency is one of the possible operating frequencies
2668 : * set after the completion of the GO Negotiation.
2669 : */
2670 293 : static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2671 : {
2672 : unsigned int i;
2673 :
2674 293 : p2p_go_dump_common_freqs(wpa_s);
2675 :
2676 : /* assume no restrictions */
2677 293 : if (!wpa_s->p2p_group_common_freqs_num)
2678 291 : return 1;
2679 :
2680 2 : for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2681 2 : if (wpa_s->p2p_group_common_freqs[i] == freq)
2682 2 : return 1;
2683 : }
2684 0 : return 0;
2685 : }
2686 :
2687 :
2688 : /**
2689 : * Pick the best frequency to use from all the currently used frequencies.
2690 : */
2691 306 : static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2692 : struct wpa_used_freq_data *freqs,
2693 : unsigned int num)
2694 : {
2695 : unsigned int i, c;
2696 :
2697 : /* find a candidate freq that is supported by P2P */
2698 306 : for (c = 0; c < num; c++)
2699 20 : if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2700 20 : break;
2701 :
2702 306 : if (c == num)
2703 286 : return 0;
2704 :
2705 : /* once we have a candidate, try to find a 'better' one */
2706 20 : for (i = c + 1; i < num; i++) {
2707 0 : if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2708 0 : continue;
2709 :
2710 : /*
2711 : * 1. Infrastructure station interfaces have higher preference.
2712 : * 2. P2P Clients have higher preference.
2713 : * 3. All others.
2714 : */
2715 0 : if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2716 0 : c = i;
2717 0 : break;
2718 : }
2719 :
2720 0 : if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2721 0 : c = i;
2722 : }
2723 20 : return freqs[c].freq;
2724 : }
2725 :
2726 :
2727 51 : static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2728 : const u8 *go_dev_addr, const u8 *ssid,
2729 : size_t ssid_len, int *go, u8 *group_bssid,
2730 : int *force_freq, int persistent_group,
2731 : const struct p2p_channels *channels,
2732 : int dev_pw_id)
2733 : {
2734 51 : struct wpa_supplicant *wpa_s = ctx;
2735 : struct wpa_ssid *s;
2736 : struct wpa_used_freq_data *freqs;
2737 : struct wpa_supplicant *grp;
2738 : int best_freq;
2739 :
2740 51 : if (!persistent_group) {
2741 126 : wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2742 : " to join an active group (SSID: %s)",
2743 108 : MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
2744 20 : if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2745 2 : (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2746 0 : == 0 ||
2747 0 : os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2748 2 : wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2749 : "authorized invitation");
2750 2 : goto accept_inv;
2751 : }
2752 :
2753 : #ifdef CONFIG_WPS_NFC
2754 19 : if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2755 3 : dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
2756 3 : wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2757 3 : wpa_s->p2p_wps_method = WPS_NFC;
2758 3 : wpa_s->pending_join_wps_method = WPS_NFC;
2759 3 : os_memcpy(wpa_s->pending_join_dev_addr,
2760 : go_dev_addr, ETH_ALEN);
2761 3 : os_memcpy(wpa_s->pending_join_iface_addr,
2762 : bssid, ETH_ALEN);
2763 3 : goto accept_inv;
2764 : }
2765 : #endif /* CONFIG_WPS_NFC */
2766 :
2767 : /*
2768 : * Do not accept the invitation automatically; notify user and
2769 : * request approval.
2770 : */
2771 13 : return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2772 : }
2773 :
2774 33 : grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2775 33 : if (grp) {
2776 5 : wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2777 : "running persistent group");
2778 5 : if (*go)
2779 4 : os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2780 5 : goto accept_inv;
2781 : }
2782 :
2783 39 : if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2784 11 : os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2785 11 : wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2786 : "invitation to re-invoke a persistent group");
2787 11 : os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
2788 17 : } else if (!wpa_s->conf->persistent_reconnect)
2789 3 : return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2790 :
2791 26 : for (s = wpa_s->conf->ssid; s; s = s->next) {
2792 49 : if (s->disabled == 2 &&
2793 48 : os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2794 48 : s->ssid_len == ssid_len &&
2795 24 : os_memcmp(ssid, s->ssid, ssid_len) == 0)
2796 24 : break;
2797 : }
2798 :
2799 25 : if (!s) {
2800 6 : wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2801 : " requested reinvocation of an unknown group",
2802 6 : MAC2STR(sa));
2803 1 : return P2P_SC_FAIL_UNKNOWN_GROUP;
2804 : }
2805 :
2806 24 : if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2807 10 : *go = 1;
2808 10 : if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2809 0 : wpa_printf(MSG_DEBUG, "P2P: The only available "
2810 : "interface is already in use - reject "
2811 : "invitation");
2812 0 : return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2813 : }
2814 10 : os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2815 14 : } else if (s->mode == WPAS_MODE_P2P_GO) {
2816 2 : *go = 1;
2817 2 : if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2818 : {
2819 0 : wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2820 : "interface address for the group");
2821 0 : return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2822 : }
2823 2 : os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2824 : ETH_ALEN);
2825 : }
2826 :
2827 : accept_inv:
2828 34 : wpas_p2p_set_own_freq_preference(wpa_s, 0);
2829 :
2830 34 : best_freq = 0;
2831 34 : freqs = os_calloc(wpa_s->num_multichan_concurrent,
2832 : sizeof(struct wpa_used_freq_data));
2833 34 : if (freqs) {
2834 34 : int num_channels = wpa_s->num_multichan_concurrent;
2835 34 : int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2836 34 : best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2837 34 : os_free(freqs);
2838 : }
2839 :
2840 : /* Get one of the frequencies currently in use */
2841 34 : if (best_freq > 0) {
2842 6 : wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
2843 6 : wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
2844 :
2845 6 : if (wpa_s->num_multichan_concurrent < 2 ||
2846 0 : wpas_p2p_num_unused_channels(wpa_s) < 1) {
2847 6 : wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2848 6 : *force_freq = best_freq;
2849 : }
2850 : }
2851 :
2852 34 : if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2853 0 : wpas_p2p_num_unused_channels(wpa_s) > 0) {
2854 0 : if (*go == 0) {
2855 : /* We are the client */
2856 0 : wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2857 : "running a GO but we are capable of MCC, "
2858 : "figure out the best channel to use");
2859 0 : *force_freq = 0;
2860 0 : } else if (!freq_included(wpa_s, channels, *force_freq)) {
2861 : /* We are the GO, and *force_freq is not in the
2862 : * intersection */
2863 0 : wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2864 : "in intersection but we are capable of MCC, "
2865 : "figure out the best channel to use",
2866 : *force_freq);
2867 0 : *force_freq = 0;
2868 : }
2869 : }
2870 :
2871 34 : return P2P_SC_SUCCESS;
2872 : }
2873 :
2874 :
2875 57 : static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2876 : const u8 *ssid, size_t ssid_len,
2877 : const u8 *go_dev_addr, u8 status,
2878 : int op_freq)
2879 : {
2880 57 : struct wpa_supplicant *wpa_s = ctx;
2881 : struct wpa_ssid *s;
2882 :
2883 58 : for (s = wpa_s->conf->ssid; s; s = s->next) {
2884 65 : if (s->disabled == 2 &&
2885 64 : s->ssid_len == ssid_len &&
2886 32 : os_memcmp(ssid, s->ssid, ssid_len) == 0)
2887 32 : break;
2888 : }
2889 :
2890 57 : if (status == P2P_SC_SUCCESS) {
2891 224 : wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2892 : " was accepted; op_freq=%d MHz, SSID=%s",
2893 192 : MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
2894 32 : if (s) {
2895 27 : int go = s->mode == WPAS_MODE_P2P_GO;
2896 27 : wpas_p2p_group_add_persistent(
2897 : wpa_s, s, go, 0, op_freq, 0, 0, NULL,
2898 : go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
2899 : 1);
2900 5 : } else if (bssid) {
2901 5 : wpa_s->user_initiated_pd = 0;
2902 5 : wpas_p2p_join(wpa_s, bssid, go_dev_addr,
2903 5 : wpa_s->p2p_wps_method, 0, op_freq,
2904 : ssid, ssid_len);
2905 : }
2906 32 : return;
2907 : }
2908 :
2909 25 : if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2910 49 : wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2911 42 : " was rejected (status %u)", MAC2STR(sa), status);
2912 7 : return;
2913 : }
2914 :
2915 18 : if (!s) {
2916 15 : if (bssid) {
2917 252 : wpa_msg_global(wpa_s, MSG_INFO,
2918 : P2P_EVENT_INVITATION_RECEIVED
2919 : "sa=" MACSTR " go_dev_addr=" MACSTR
2920 : " bssid=" MACSTR " unknown-network",
2921 168 : MAC2STR(sa), MAC2STR(go_dev_addr),
2922 84 : MAC2STR(bssid));
2923 : } else {
2924 12 : wpa_msg_global(wpa_s, MSG_INFO,
2925 : P2P_EVENT_INVITATION_RECEIVED
2926 : "sa=" MACSTR " go_dev_addr=" MACSTR
2927 : " unknown-network",
2928 12 : MAC2STR(sa), MAC2STR(go_dev_addr));
2929 : }
2930 15 : wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
2931 : bssid, 0, op_freq);
2932 15 : return;
2933 : }
2934 :
2935 3 : if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
2936 7 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2937 : "sa=" MACSTR " persistent=%d freq=%d",
2938 6 : MAC2STR(sa), s->id, op_freq);
2939 : } else {
2940 14 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2941 : "sa=" MACSTR " persistent=%d",
2942 12 : MAC2STR(sa), s->id);
2943 : }
2944 3 : wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
2945 : s->id, op_freq);
2946 : }
2947 :
2948 :
2949 5 : static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
2950 : struct wpa_ssid *ssid,
2951 : const u8 *peer, int inv)
2952 : {
2953 : size_t i;
2954 5 : struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
2955 :
2956 5 : if (ssid == NULL)
2957 0 : return;
2958 :
2959 6 : for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
2960 6 : if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
2961 : ETH_ALEN) == 0)
2962 5 : break;
2963 : }
2964 5 : if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
2965 0 : if (ssid->mode != WPAS_MODE_P2P_GO &&
2966 0 : os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
2967 0 : wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
2968 : "due to invitation result", ssid->id);
2969 0 : wpas_notify_network_removed(wpa_s, ssid);
2970 0 : wpa_config_remove_network(wpa_s->conf, ssid->id);
2971 0 : return;
2972 : }
2973 0 : return; /* Peer not found in client list */
2974 : }
2975 :
2976 35 : wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
2977 : "group %d client list%s",
2978 30 : MAC2STR(peer), ssid->id,
2979 : inv ? " due to invitation result" : "");
2980 5 : os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
2981 : ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
2982 : (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
2983 5 : ssid->num_p2p_clients--;
2984 5 : if (p2p_wpa_s->conf->update_config &&
2985 0 : wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
2986 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
2987 : }
2988 :
2989 :
2990 0 : static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
2991 : const u8 *peer)
2992 : {
2993 : struct wpa_ssid *ssid;
2994 :
2995 0 : wpa_s = wpa_s->global->p2p_invite_group;
2996 0 : if (wpa_s == NULL)
2997 0 : return; /* No known invitation group */
2998 0 : ssid = wpa_s->current_ssid;
2999 0 : if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3000 0 : !ssid->p2p_persistent_group)
3001 0 : return; /* Not operating as a GO in persistent group */
3002 0 : ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
3003 0 : ssid->ssid, ssid->ssid_len);
3004 0 : wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3005 : }
3006 :
3007 :
3008 42 : static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
3009 : const struct p2p_channels *channels,
3010 : const u8 *peer, int neg_freq,
3011 : int peer_oper_freq)
3012 : {
3013 42 : struct wpa_supplicant *wpa_s = ctx;
3014 : struct wpa_ssid *ssid;
3015 : int freq;
3016 :
3017 42 : if (bssid) {
3018 72 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3019 : "status=%d " MACSTR,
3020 72 : status, MAC2STR(bssid));
3021 : } else {
3022 30 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3023 : "status=%d ", status);
3024 : }
3025 42 : wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
3026 :
3027 252 : wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3028 252 : status, MAC2STR(peer));
3029 42 : if (wpa_s->pending_invite_ssid_id == -1) {
3030 11 : if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3031 0 : wpas_remove_persistent_client(wpa_s, peer);
3032 11 : return; /* Invitation to active group */
3033 : }
3034 :
3035 31 : if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3036 2 : wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3037 : "invitation exchange to indicate readiness for "
3038 : "re-invocation");
3039 : }
3040 :
3041 31 : if (status != P2P_SC_SUCCESS) {
3042 5 : if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3043 1 : ssid = wpa_config_get_network(
3044 : wpa_s->conf, wpa_s->pending_invite_ssid_id);
3045 1 : wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
3046 : }
3047 5 : wpas_p2p_remove_pending_group_interface(wpa_s);
3048 5 : return;
3049 : }
3050 :
3051 26 : ssid = wpa_config_get_network(wpa_s->conf,
3052 : wpa_s->pending_invite_ssid_id);
3053 26 : if (ssid == NULL) {
3054 0 : wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3055 : "data matching with invitation");
3056 0 : return;
3057 : }
3058 :
3059 : /*
3060 : * The peer could have missed our ctrl::ack frame for Invitation
3061 : * Response and continue retransmitting the frame. To reduce the
3062 : * likelihood of the peer not getting successful TX status for the
3063 : * Invitation Response frame, wait a short time here before starting
3064 : * the persistent group so that we will remain on the current channel to
3065 : * acknowledge any possible retransmission from the peer.
3066 : */
3067 26 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3068 : "starting persistent group");
3069 26 : os_sleep(0, 50000);
3070 :
3071 40 : if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3072 14 : freq_included(wpa_s, channels, neg_freq))
3073 14 : freq = neg_freq;
3074 24 : else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3075 12 : freq_included(wpa_s, channels, peer_oper_freq))
3076 12 : freq = peer_oper_freq;
3077 : else
3078 0 : freq = 0;
3079 :
3080 52 : wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3081 26 : freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3082 104 : wpas_p2p_group_add_persistent(wpa_s, ssid,
3083 26 : ssid->mode == WPAS_MODE_P2P_GO,
3084 : wpa_s->p2p_persistent_go_freq,
3085 : freq,
3086 52 : wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3087 : channels,
3088 26 : ssid->mode == WPAS_MODE_P2P_GO ?
3089 : P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3090 : 0, 1);
3091 : }
3092 :
3093 :
3094 3529893 : static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3095 : unsigned int freq)
3096 : {
3097 3529893 : if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3098 260 : return 1;
3099 3529633 : return freq_range_list_includes(&global->p2p_disallow_freq, freq);
3100 : }
3101 :
3102 :
3103 1786 : static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3104 : {
3105 1786 : reg->channel[reg->channels] = chan;
3106 1786 : reg->channels++;
3107 1786 : }
3108 :
3109 :
3110 94 : static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
3111 : struct p2p_channels *chan,
3112 : struct p2p_channels *cli_chan)
3113 : {
3114 94 : int i, cla = 0;
3115 :
3116 94 : wpa_s->global->p2p_24ghz_social_channels = 1;
3117 :
3118 94 : os_memset(cli_chan, 0, sizeof(*cli_chan));
3119 :
3120 94 : wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3121 : "band");
3122 :
3123 : /* Operating class 81 - 2.4 GHz band channels 1..13 */
3124 94 : chan->reg_class[cla].reg_class = 81;
3125 94 : chan->reg_class[cla].channels = 0;
3126 1128 : for (i = 0; i < 11; i++) {
3127 1034 : if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3128 1034 : wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3129 : }
3130 94 : if (chan->reg_class[cla].channels)
3131 94 : cla++;
3132 :
3133 94 : wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3134 : "band");
3135 :
3136 : /* Operating class 115 - 5 GHz, channels 36-48 */
3137 94 : chan->reg_class[cla].reg_class = 115;
3138 94 : chan->reg_class[cla].channels = 0;
3139 94 : if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3140 94 : wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3141 94 : if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3142 94 : wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3143 94 : if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3144 94 : wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3145 94 : if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3146 94 : wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3147 94 : if (chan->reg_class[cla].channels)
3148 94 : cla++;
3149 :
3150 94 : wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3151 : "band");
3152 :
3153 : /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3154 94 : chan->reg_class[cla].reg_class = 124;
3155 94 : chan->reg_class[cla].channels = 0;
3156 94 : if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3157 94 : wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3158 94 : if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3159 94 : wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3160 94 : if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3161 94 : wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3162 94 : if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3163 94 : wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3164 94 : if (chan->reg_class[cla].channels)
3165 94 : cla++;
3166 :
3167 94 : chan->reg_classes = cla;
3168 94 : return 0;
3169 : }
3170 :
3171 :
3172 343200 : static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3173 : u16 num_modes,
3174 : enum hostapd_hw_mode mode)
3175 : {
3176 : u16 i;
3177 :
3178 720720 : for (i = 0; i < num_modes; i++) {
3179 686400 : if (modes[i].mode == mode)
3180 308880 : return &modes[i];
3181 : }
3182 :
3183 34320 : return NULL;
3184 : }
3185 :
3186 :
3187 : enum chan_allowed {
3188 : NOT_ALLOWED, NO_IR, ALLOWED
3189 : };
3190 :
3191 3527853 : static int has_channel(struct wpa_global *global,
3192 : struct hostapd_hw_modes *mode, u8 chan, int *flags)
3193 : {
3194 : int i;
3195 : unsigned int freq;
3196 :
3197 7055706 : freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3198 3527853 : chan * 5;
3199 3527853 : if (wpas_p2p_disallowed_freq(global, freq))
3200 2099 : return NOT_ALLOWED;
3201 :
3202 45370430 : for (i = 0; i < mode->num_channels; i++) {
3203 44890356 : if (mode->channels[i].chan == chan) {
3204 3045680 : if (flags)
3205 2773266 : *flags = mode->channels[i].flag;
3206 3045680 : if (mode->channels[i].flag &
3207 : (HOSTAPD_CHAN_DISABLED |
3208 : HOSTAPD_CHAN_RADAR))
3209 528805 : return NOT_ALLOWED;
3210 2516875 : if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3211 1914554 : return NO_IR;
3212 602321 : return ALLOWED;
3213 : }
3214 : }
3215 :
3216 480074 : return NOT_ALLOWED;
3217 : }
3218 :
3219 :
3220 : struct p2p_oper_class_map {
3221 : enum hostapd_hw_mode mode;
3222 : u8 op_class;
3223 : u8 min_chan;
3224 : u8 max_chan;
3225 : u8 inc;
3226 : enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
3227 : };
3228 :
3229 : static const struct p2p_oper_class_map op_class[] = {
3230 : { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
3231 : #if 0 /* Do not enable HT40 on 2 GHz for now */
3232 : { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3233 : { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3234 : #endif
3235 : { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3236 : { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3237 : { HOSTAPD_MODE_IEEE80211A, 125, 149, 169, 4, BW20 },
3238 : { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3239 : { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3240 : { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3241 : { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
3242 :
3243 : /*
3244 : * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3245 : * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3246 : * 80 MHz, but currently use the following definition for simplicity
3247 : * (these center frequencies are not actual channels, which makes
3248 : * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3249 : * removing invalid channels.
3250 : */
3251 : { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
3252 : { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
3253 : { -1, 0, 0, 0, 0, BW20 }
3254 : };
3255 :
3256 :
3257 1098242 : static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3258 : struct hostapd_hw_modes *mode,
3259 : u8 channel)
3260 : {
3261 1098242 : u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3262 : unsigned int i;
3263 :
3264 1098242 : if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3265 0 : return 0;
3266 :
3267 4839122 : for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3268 : /*
3269 : * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3270 : * so the center channel is 6 channels away from the start/end.
3271 : */
3272 7927924 : if (channel >= center_channels[i] - 6 &&
3273 3397682 : channel <= center_channels[i] + 6)
3274 789362 : return center_channels[i];
3275 :
3276 308880 : return 0;
3277 : }
3278 :
3279 :
3280 1098241 : static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3281 : struct hostapd_hw_modes *mode,
3282 : u8 channel, u8 bw)
3283 : {
3284 : u8 center_chan;
3285 : int i, flags;
3286 1098241 : enum chan_allowed res, ret = ALLOWED;
3287 :
3288 1098241 : center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3289 1098241 : if (!center_chan)
3290 308880 : return NOT_ALLOWED;
3291 789361 : if (center_chan >= 58 && center_chan <= 138)
3292 549120 : return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3293 :
3294 : /* check all the channels are available */
3295 1194581 : for (i = 0; i < 4; i++) {
3296 955996 : int adj_chan = center_chan - 6 + i * 4;
3297 :
3298 955996 : res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3299 955996 : if (res == NOT_ALLOWED)
3300 1653 : return NOT_ALLOWED;
3301 954343 : if (res == NO_IR)
3302 850891 : ret = NO_IR;
3303 :
3304 954343 : if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3305 3 : return NOT_ALLOWED;
3306 954340 : if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3307 0 : return NOT_ALLOWED;
3308 954340 : if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3309 0 : return NOT_ALLOWED;
3310 954340 : if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3311 0 : return NOT_ALLOWED;
3312 : }
3313 :
3314 238585 : return ret;
3315 : }
3316 :
3317 :
3318 2299443 : static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3319 : struct hostapd_hw_modes *mode,
3320 : u8 channel, u8 bw)
3321 : {
3322 2299443 : int flag = 0;
3323 : enum chan_allowed res, res2;
3324 :
3325 2299443 : res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3326 2299443 : if (bw == BW40MINUS) {
3327 137281 : if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3328 1074 : return NOT_ALLOWED;
3329 136207 : res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3330 2162162 : } else if (bw == BW40PLUS) {
3331 137281 : if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3332 1074 : return NOT_ALLOWED;
3333 136207 : res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
3334 2024881 : } else if (bw == BW80) {
3335 1098241 : res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
3336 : }
3337 :
3338 2297295 : if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3339 1007169 : return NOT_ALLOWED;
3340 1290126 : if (res == NO_IR || res2 == NO_IR)
3341 820581 : return NO_IR;
3342 469545 : return res;
3343 : }
3344 :
3345 :
3346 34414 : static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
3347 : struct p2p_channels *chan,
3348 : struct p2p_channels *cli_chan)
3349 : {
3350 : struct hostapd_hw_modes *mode;
3351 : int cla, op, cli_cla;
3352 :
3353 34414 : if (wpa_s->hw.modes == NULL) {
3354 94 : wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3355 : "of all supported channels; assume dualband "
3356 : "support");
3357 94 : return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
3358 : }
3359 :
3360 34320 : cla = cli_cla = 0;
3361 :
3362 377520 : for (op = 0; op_class[op].op_class; op++) {
3363 343200 : const struct p2p_oper_class_map *o = &op_class[op];
3364 : u8 ch;
3365 343200 : struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
3366 :
3367 343200 : mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
3368 343200 : if (mode == NULL)
3369 34320 : continue;
3370 308880 : if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3371 34320 : wpa_s->global->p2p_24ghz_social_channels = 1;
3372 2608320 : for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3373 : enum chan_allowed res;
3374 2299440 : res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3375 2299440 : if (res == ALLOWED) {
3376 469542 : if (reg == NULL) {
3377 63600 : wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3378 63600 : o->op_class);
3379 63600 : reg = &chan->reg_class[cla];
3380 63600 : cla++;
3381 63600 : reg->reg_class = o->op_class;
3382 : }
3383 469542 : reg->channel[reg->channels] = ch;
3384 469542 : reg->channels++;
3385 2650479 : } else if (res == NO_IR &&
3386 820581 : wpa_s->conf->p2p_add_cli_chan) {
3387 3240 : if (cli_reg == NULL) {
3388 1080 : wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3389 1080 : o->op_class);
3390 1080 : cli_reg = &cli_chan->reg_class[cli_cla];
3391 1080 : cli_cla++;
3392 1080 : cli_reg->reg_class = o->op_class;
3393 : }
3394 3240 : cli_reg->channel[cli_reg->channels] = ch;
3395 3240 : cli_reg->channels++;
3396 : }
3397 : }
3398 308880 : if (reg) {
3399 127200 : wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3400 63600 : reg->channel, reg->channels);
3401 : }
3402 308880 : if (cli_reg) {
3403 2160 : wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3404 1080 : cli_reg->channel, cli_reg->channels);
3405 : }
3406 : }
3407 :
3408 34320 : chan->reg_classes = cla;
3409 34320 : cli_chan->reg_classes = cli_cla;
3410 :
3411 34320 : return 0;
3412 : }
3413 :
3414 :
3415 2 : int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3416 : struct hostapd_hw_modes *mode, u8 channel)
3417 : {
3418 : int op;
3419 : enum chan_allowed ret;
3420 :
3421 13 : for (op = 0; op_class[op].op_class; op++) {
3422 13 : const struct p2p_oper_class_map *o = &op_class[op];
3423 : u8 ch;
3424 :
3425 73 : for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3426 98 : if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3427 67 : (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3428 : ch != channel)
3429 60 : continue;
3430 2 : ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3431 2 : if (ret == ALLOWED)
3432 2 : return (o->bw == BW40MINUS) ? -1 : 1;
3433 : }
3434 : }
3435 0 : return 0;
3436 : }
3437 :
3438 :
3439 1 : int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3440 : struct hostapd_hw_modes *mode, u8 channel)
3441 : {
3442 1 : if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3443 0 : return 0;
3444 :
3445 1 : return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3446 : }
3447 :
3448 :
3449 10 : static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3450 : size_t buf_len)
3451 : {
3452 10 : struct wpa_supplicant *wpa_s = ctx;
3453 :
3454 10 : for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3455 10 : if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3456 10 : break;
3457 : }
3458 10 : if (wpa_s == NULL)
3459 0 : return -1;
3460 :
3461 10 : return wpa_drv_get_noa(wpa_s, buf, buf_len);
3462 : }
3463 :
3464 :
3465 434 : struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3466 : const u8 *ssid, size_t ssid_len)
3467 : {
3468 434 : for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3469 434 : struct wpa_ssid *s = wpa_s->current_ssid;
3470 434 : if (s == NULL)
3471 0 : continue;
3472 434 : if (s->mode != WPAS_MODE_P2P_GO &&
3473 0 : s->mode != WPAS_MODE_AP &&
3474 0 : s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3475 0 : continue;
3476 868 : if (s->ssid_len != ssid_len ||
3477 434 : os_memcmp(ssid, s->ssid, ssid_len) != 0)
3478 0 : continue;
3479 434 : return wpa_s;
3480 : }
3481 :
3482 0 : return NULL;
3483 :
3484 : }
3485 :
3486 :
3487 957 : struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3488 : const u8 *peer_dev_addr)
3489 : {
3490 1810 : for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3491 1014 : struct wpa_ssid *ssid = wpa_s->current_ssid;
3492 1014 : if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
3493 544 : continue;
3494 470 : if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3495 161 : return wpa_s;
3496 : }
3497 :
3498 796 : return NULL;
3499 : }
3500 :
3501 :
3502 1 : static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3503 : {
3504 1 : struct wpa_supplicant *wpa_s = ctx;
3505 :
3506 1 : return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
3507 : }
3508 :
3509 :
3510 380 : static int wpas_is_concurrent_session_active(void *ctx)
3511 : {
3512 380 : struct wpa_supplicant *wpa_s = ctx;
3513 : struct wpa_supplicant *ifs;
3514 :
3515 760 : for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3516 380 : if (ifs == wpa_s)
3517 380 : continue;
3518 0 : if (ifs->wpa_state > WPA_ASSOCIATED)
3519 0 : return 1;
3520 : }
3521 380 : return 0;
3522 : }
3523 :
3524 :
3525 243591 : static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3526 : {
3527 243591 : struct wpa_supplicant *wpa_s = ctx;
3528 243591 : wpa_msg_global(wpa_s, level, "P2P: %s", msg);
3529 243591 : }
3530 :
3531 :
3532 8 : int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3533 : const char *conf_p2p_dev)
3534 : {
3535 : struct wpa_interface iface;
3536 : struct wpa_supplicant *p2pdev_wpa_s;
3537 : char ifname[100];
3538 : char force_name[100];
3539 : int ret;
3540 :
3541 8 : ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3542 8 : wpa_s->ifname);
3543 8 : if (os_snprintf_error(sizeof(ifname), ret))
3544 0 : return -1;
3545 8 : force_name[0] = '\0';
3546 8 : wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3547 8 : ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3548 8 : force_name, wpa_s->pending_interface_addr, NULL);
3549 8 : if (ret < 0) {
3550 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3551 0 : return ret;
3552 : }
3553 8 : os_strlcpy(wpa_s->pending_interface_name, ifname,
3554 : sizeof(wpa_s->pending_interface_name));
3555 :
3556 8 : os_memset(&iface, 0, sizeof(iface));
3557 8 : iface.p2p_mgmt = 1;
3558 8 : iface.ifname = wpa_s->pending_interface_name;
3559 8 : iface.driver = wpa_s->driver->name;
3560 8 : iface.driver_param = wpa_s->conf->driver_param;
3561 :
3562 : /*
3563 : * If a P2P Device configuration file was given, use it as the interface
3564 : * configuration file (instead of using parent's configuration file.
3565 : */
3566 8 : if (conf_p2p_dev) {
3567 0 : iface.confname = conf_p2p_dev;
3568 0 : iface.ctrl_interface = NULL;
3569 : } else {
3570 8 : iface.confname = wpa_s->confname;
3571 8 : iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3572 : }
3573 :
3574 8 : p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
3575 8 : if (!p2pdev_wpa_s) {
3576 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3577 0 : return -1;
3578 : }
3579 :
3580 8 : wpa_s->pending_interface_name[0] = '\0';
3581 8 : return 0;
3582 : }
3583 :
3584 :
3585 5 : static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3586 : const u8 *noa, size_t noa_len)
3587 : {
3588 5 : struct wpa_supplicant *wpa_s, *intf = ctx;
3589 : char hex[100];
3590 :
3591 5 : for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3592 5 : if (wpa_s->waiting_presence_resp)
3593 5 : break;
3594 : }
3595 5 : if (!wpa_s) {
3596 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3597 5 : return;
3598 : }
3599 5 : wpa_s->waiting_presence_resp = 0;
3600 :
3601 5 : wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3602 35 : wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3603 30 : " status=%u noa=%s", MAC2STR(src), status, hex);
3604 : }
3605 :
3606 :
3607 38 : static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3608 : size_t ssid_len, u8 *go_dev_addr,
3609 : u8 *ret_ssid, size_t *ret_ssid_len,
3610 : u8 *intended_iface_addr)
3611 : {
3612 38 : struct wpa_supplicant *wpa_s = ctx;
3613 : struct wpa_ssid *s;
3614 :
3615 38 : s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3616 38 : if (s) {
3617 2 : os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3618 2 : *ret_ssid_len = s->ssid_len;
3619 2 : os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
3620 :
3621 2 : if (s->mode != WPAS_MODE_P2P_GO) {
3622 1 : os_memset(intended_iface_addr, 0, ETH_ALEN);
3623 1 : } else if (wpas_p2p_create_iface(wpa_s)) {
3624 0 : if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3625 0 : return 0;
3626 :
3627 0 : os_memcpy(intended_iface_addr,
3628 : wpa_s->pending_interface_addr, ETH_ALEN);
3629 : } else {
3630 1 : os_memcpy(intended_iface_addr, wpa_s->own_addr,
3631 : ETH_ALEN);
3632 : }
3633 2 : return 1;
3634 : }
3635 :
3636 36 : return 0;
3637 : }
3638 :
3639 :
3640 42 : static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3641 : u8 *ssid, size_t *ssid_len, int *group_iface)
3642 : {
3643 42 : struct wpa_supplicant *wpa_s = ctx;
3644 : struct wpa_ssid *s;
3645 : u8 bssid[ETH_ALEN];
3646 :
3647 : /*
3648 : * group_iface will be set to 1 only if a dedicated interface for P2P
3649 : * role is required. First, we try to reuse an active GO. However,
3650 : * if it is not present, we will try to reactivate an existing
3651 : * persistent group and set group_iface to 1, so the caller will know
3652 : * that the pending interface should be used.
3653 : */
3654 42 : *group_iface = 0;
3655 42 : s = wpas_p2p_group_go_ssid(wpa_s, bssid);
3656 42 : if (!s) {
3657 42 : s = wpas_p2p_get_persistent_go(wpa_s);
3658 42 : *group_iface = wpas_p2p_create_iface(wpa_s);
3659 42 : if (s)
3660 0 : os_memcpy(bssid, s->bssid, ETH_ALEN);
3661 : else
3662 42 : return 0;
3663 : }
3664 :
3665 0 : os_memcpy(intended_addr, bssid, ETH_ALEN);
3666 0 : os_memcpy(ssid, s->ssid, s->ssid_len);
3667 0 : *ssid_len = s->ssid_len;
3668 :
3669 0 : return 1;
3670 : }
3671 :
3672 :
3673 110 : static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3674 : const u8 *ssid, size_t ssid_len)
3675 : {
3676 110 : struct wpa_supplicant *wpa_s = ctx;
3677 : struct wpa_ssid *s;
3678 110 : int save_config = 0;
3679 : size_t i;
3680 :
3681 : /* Start with our first choice of Persistent Groups */
3682 220 : while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3683 2 : if (go && ssid && ssid_len &&
3684 2 : s->ssid_len == ssid_len &&
3685 2 : os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3686 1 : os_memcmp(ssid, s->ssid, ssid_len) == 0)
3687 1 : break;
3688 :
3689 : /* Remove stale persistent group */
3690 0 : if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3691 0 : wpa_config_remove_network(wpa_s->conf, s->id);
3692 0 : save_config = 1;
3693 0 : continue;
3694 : }
3695 :
3696 0 : for (i = 0; i < s->num_p2p_clients; i++) {
3697 0 : if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3698 : peer, ETH_ALEN) != 0)
3699 0 : continue;
3700 :
3701 0 : os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3702 : s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3703 : (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3704 0 : break;
3705 : }
3706 0 : s->num_p2p_clients--;
3707 0 : save_config = 1;
3708 : }
3709 :
3710 110 : if (save_config)
3711 0 : p2p_config_write(wpa_s);
3712 :
3713 : /* Return TRUE if valid SSID remains */
3714 110 : return s != NULL;
3715 : }
3716 :
3717 :
3718 59 : static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3719 : const u8 *feat_cap, size_t feat_cap_len)
3720 : {
3721 : static const char pref[] = " feature_cap=";
3722 : int ret;
3723 :
3724 59 : buf[0] = '\0';
3725 :
3726 : /*
3727 : * We expect a feature capability to contain at least one byte to be
3728 : * reported. The string buffer provided by the caller function is
3729 : * expected to be big enough to contain all bytes of the attribute for
3730 : * known specifications. This function truncates the reported bytes if
3731 : * the feature capability data exceeds the string buffer size.
3732 : */
3733 59 : if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3734 59 : return;
3735 :
3736 59 : os_memcpy(buf, pref, sizeof(pref));
3737 59 : ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3738 : buf_len - sizeof(pref) + 1,
3739 : feat_cap, feat_cap_len);
3740 :
3741 59 : if (ret != (2 * (int) feat_cap_len))
3742 0 : wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3743 : }
3744 :
3745 :
3746 59 : static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3747 : const u8 *adv_mac, const u8 *ses_mac,
3748 : const u8 *grp_mac, u32 adv_id, u32 ses_id,
3749 : u8 conncap, int passwd_id,
3750 : const u8 *persist_ssid,
3751 : size_t persist_ssid_size, int response_done,
3752 : int prov_start, const char *session_info,
3753 : const u8 *feat_cap, size_t feat_cap_len)
3754 : {
3755 59 : struct wpa_supplicant *wpa_s = ctx;
3756 : u8 mac[ETH_ALEN];
3757 : struct wpa_ssid *persistent_go, *stale, *s;
3758 59 : int save_config = 0;
3759 : struct wpa_supplicant *go_wpa_s;
3760 : char feat_cap_str[256];
3761 :
3762 59 : if (!dev)
3763 23 : return;
3764 :
3765 59 : os_memset(mac, 0, ETH_ALEN);
3766 59 : if (!adv_mac)
3767 0 : adv_mac = mac;
3768 59 : if (!ses_mac)
3769 0 : ses_mac = mac;
3770 59 : if (!grp_mac)
3771 18 : grp_mac = mac;
3772 :
3773 59 : wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3774 : feat_cap, feat_cap_len);
3775 :
3776 59 : if (prov_start) {
3777 7 : if (session_info == NULL) {
3778 126 : wpa_msg_global(wpa_s, MSG_INFO,
3779 : P2P_EVENT_P2PS_PROVISION_START MACSTR
3780 : " adv_id=%x conncap=%x"
3781 : " adv_mac=" MACSTR
3782 : " session=%x mac=" MACSTR
3783 : " dev_passwd_id=%d%s",
3784 42 : MAC2STR(dev), adv_id, conncap,
3785 42 : MAC2STR(adv_mac),
3786 42 : ses_id, MAC2STR(ses_mac),
3787 : passwd_id, feat_cap_str);
3788 : } else {
3789 0 : wpa_msg_global(wpa_s, MSG_INFO,
3790 : P2P_EVENT_P2PS_PROVISION_START MACSTR
3791 : " adv_id=%x conncap=%x"
3792 : " adv_mac=" MACSTR
3793 : " session=%x mac=" MACSTR
3794 : " dev_passwd_id=%d info='%s'%s",
3795 0 : MAC2STR(dev), adv_id, conncap,
3796 0 : MAC2STR(adv_mac),
3797 0 : ses_id, MAC2STR(ses_mac),
3798 : passwd_id, session_info, feat_cap_str);
3799 : }
3800 7 : return;
3801 : }
3802 :
3803 52 : go_wpa_s = wpas_p2p_get_go_group(wpa_s);
3804 52 : persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3805 :
3806 52 : if (status && status != P2P_SC_SUCCESS_DEFERRED) {
3807 0 : if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3808 0 : wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3809 :
3810 0 : if (persistent_go && !persistent_go->num_p2p_clients) {
3811 : /* remove empty persistent GO */
3812 0 : wpa_config_remove_network(wpa_s->conf,
3813 : persistent_go->id);
3814 : }
3815 :
3816 0 : wpa_msg_global(wpa_s, MSG_INFO,
3817 : P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3818 : " status=%d"
3819 : " adv_id=%x adv_mac=" MACSTR
3820 : " session=%x mac=" MACSTR "%s",
3821 0 : MAC2STR(dev), status,
3822 0 : adv_id, MAC2STR(adv_mac),
3823 0 : ses_id, MAC2STR(ses_mac), feat_cap_str);
3824 0 : return;
3825 : }
3826 :
3827 : /* Clean up stale persistent groups with this device */
3828 52 : s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
3829 : persist_ssid_size);
3830 :
3831 53 : if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
3832 1 : is_zero_ether_addr(grp_mac)) {
3833 0 : wpa_dbg(wpa_s, MSG_ERROR,
3834 : "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
3835 0 : return;
3836 : }
3837 :
3838 : for (;;) {
3839 52 : stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
3840 52 : if (!stale)
3841 50 : break;
3842 :
3843 4 : if (s && s->ssid_len == stale->ssid_len &&
3844 4 : os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
3845 2 : os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
3846 2 : break;
3847 :
3848 : /* Remove stale persistent group */
3849 0 : if (stale->mode != WPAS_MODE_P2P_GO ||
3850 0 : stale->num_p2p_clients <= 1) {
3851 0 : wpa_config_remove_network(wpa_s->conf, stale->id);
3852 : } else {
3853 : size_t i;
3854 :
3855 0 : for (i = 0; i < stale->num_p2p_clients; i++) {
3856 0 : if (os_memcmp(stale->p2p_client_list +
3857 : i * ETH_ALEN,
3858 : dev, ETH_ALEN) == 0) {
3859 0 : os_memmove(stale->p2p_client_list +
3860 : i * ETH_ALEN,
3861 : stale->p2p_client_list +
3862 : (i + 1) * ETH_ALEN,
3863 : (stale->num_p2p_clients -
3864 : i - 1) * ETH_ALEN);
3865 0 : break;
3866 : }
3867 : }
3868 0 : stale->num_p2p_clients--;
3869 : }
3870 0 : save_config = 1;
3871 0 : }
3872 :
3873 52 : if (save_config)
3874 0 : p2p_config_write(wpa_s);
3875 :
3876 52 : if (s) {
3877 2 : if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3878 0 : wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3879 :
3880 2 : if (persistent_go && s != persistent_go &&
3881 0 : !persistent_go->num_p2p_clients) {
3882 : /* remove empty persistent GO */
3883 0 : wpa_config_remove_network(wpa_s->conf,
3884 : persistent_go->id);
3885 : /* Save config */
3886 : }
3887 :
3888 38 : wpa_msg_global(wpa_s, MSG_INFO,
3889 : P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3890 : " status=%d"
3891 : " adv_id=%x adv_mac=" MACSTR
3892 : " session=%x mac=" MACSTR
3893 : " persist=%d%s",
3894 12 : MAC2STR(dev), status,
3895 12 : adv_id, MAC2STR(adv_mac),
3896 12 : ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
3897 2 : return;
3898 : }
3899 :
3900 50 : if (conncap == P2PS_SETUP_GROUP_OWNER) {
3901 : /*
3902 : * We need to copy the interface name. Simply saving a
3903 : * pointer isn't enough, since if we use pending_interface_name
3904 : * it will be overwritten when the group is added.
3905 : */
3906 : char go_ifname[100];
3907 :
3908 14 : go_ifname[0] = '\0';
3909 14 : if (!go_wpa_s) {
3910 14 : wpa_s->global->pending_p2ps_group = 1;
3911 :
3912 14 : if (!wpas_p2p_create_iface(wpa_s))
3913 11 : os_memcpy(go_ifname, wpa_s->ifname,
3914 : sizeof(go_ifname));
3915 3 : else if (wpa_s->pending_interface_name[0])
3916 3 : os_memcpy(go_ifname,
3917 : wpa_s->pending_interface_name,
3918 : sizeof(go_ifname));
3919 :
3920 14 : if (!go_ifname[0]) {
3921 0 : wpas_p2ps_prov_complete(
3922 : wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
3923 : dev, adv_mac, ses_mac,
3924 : grp_mac, adv_id, ses_id, 0, 0,
3925 : NULL, 0, 0, 0, NULL, NULL, 0);
3926 0 : return;
3927 : }
3928 :
3929 : /* If PD Resp complete, start up the GO */
3930 14 : if (response_done && persistent_go) {
3931 0 : wpas_p2p_group_add_persistent(
3932 : wpa_s, persistent_go,
3933 : 0, 0, 0, 0, 0, NULL,
3934 0 : persistent_go->mode ==
3935 : WPAS_MODE_P2P_GO ?
3936 : P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3937 : 0, 0);
3938 14 : } else if (response_done) {
3939 9 : wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
3940 : }
3941 :
3942 14 : if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3943 8 : os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
3944 : ETH_ALEN);
3945 8 : wpa_s->p2ps_method_config_any = 1;
3946 : }
3947 0 : } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
3948 0 : os_memcpy(go_ifname, go_wpa_s->ifname,
3949 : sizeof(go_ifname));
3950 :
3951 0 : if (is_zero_ether_addr(grp_mac)) {
3952 0 : wpa_dbg(go_wpa_s, MSG_DEBUG,
3953 : "P2P: Setting PIN-1 for ANY");
3954 0 : wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
3955 : "12345670", NULL, 0,
3956 : 0);
3957 : } else {
3958 0 : wpa_dbg(go_wpa_s, MSG_DEBUG,
3959 : "P2P: Setting PIN-1 for " MACSTR,
3960 : MAC2STR(grp_mac));
3961 0 : wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
3962 : "12345670", NULL, 0,
3963 : 0);
3964 : }
3965 :
3966 0 : os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
3967 0 : wpa_s->p2ps_method_config_any = 1;
3968 : }
3969 :
3970 252 : wpa_msg_global(wpa_s, MSG_INFO,
3971 : P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3972 : " status=%d conncap=%x"
3973 : " adv_id=%x adv_mac=" MACSTR
3974 : " session=%x mac=" MACSTR
3975 : " dev_passwd_id=%d go=%s%s",
3976 84 : MAC2STR(dev), status, conncap,
3977 84 : adv_id, MAC2STR(adv_mac),
3978 84 : ses_id, MAC2STR(ses_mac),
3979 : passwd_id, go_ifname, feat_cap_str);
3980 14 : return;
3981 : }
3982 :
3983 36 : if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3984 0 : wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3985 :
3986 36 : if (persistent_go && !persistent_go->num_p2p_clients) {
3987 : /* remove empty persistent GO */
3988 0 : wpa_config_remove_network(wpa_s->conf, persistent_go->id);
3989 : }
3990 :
3991 36 : if (conncap == P2PS_SETUP_CLIENT) {
3992 336 : wpa_msg_global(wpa_s, MSG_INFO,
3993 : P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3994 : " status=%d conncap=%x"
3995 : " adv_id=%x adv_mac=" MACSTR
3996 : " session=%x mac=" MACSTR
3997 : " dev_passwd_id=%d join=" MACSTR "%s",
3998 84 : MAC2STR(dev), status, conncap,
3999 84 : adv_id, MAC2STR(adv_mac),
4000 84 : ses_id, MAC2STR(ses_mac),
4001 84 : passwd_id, MAC2STR(grp_mac), feat_cap_str);
4002 : } else {
4003 396 : wpa_msg_global(wpa_s, MSG_INFO,
4004 : P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4005 : " status=%d conncap=%x"
4006 : " adv_id=%x adv_mac=" MACSTR
4007 : " session=%x mac=" MACSTR
4008 : " dev_passwd_id=%d%s",
4009 132 : MAC2STR(dev), status, conncap,
4010 132 : adv_id, MAC2STR(adv_mac),
4011 132 : ses_id, MAC2STR(ses_mac),
4012 : passwd_id, feat_cap_str);
4013 : }
4014 : }
4015 :
4016 :
4017 8 : static int _wpas_p2p_in_progress(void *ctx)
4018 : {
4019 8 : struct wpa_supplicant *wpa_s = ctx;
4020 8 : return wpas_p2p_in_progress(wpa_s);
4021 : }
4022 :
4023 :
4024 104 : static int wpas_prov_disc_resp_cb(void *ctx)
4025 : {
4026 104 : struct wpa_supplicant *wpa_s = ctx;
4027 : struct wpa_ssid *persistent_go;
4028 :
4029 104 : if (!wpa_s->global->pending_p2ps_group)
4030 99 : return 0;
4031 :
4032 5 : wpa_s->global->pending_p2ps_group = 0;
4033 :
4034 5 : if (wpas_p2p_get_go_group(wpa_s))
4035 0 : return 0;
4036 5 : persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4037 :
4038 5 : if (persistent_go) {
4039 0 : wpas_p2p_group_add_persistent(
4040 : wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
4041 0 : persistent_go->mode == WPAS_MODE_P2P_GO ?
4042 : P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
4043 : } else {
4044 5 : wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
4045 : }
4046 :
4047 5 : return 1;
4048 : }
4049 :
4050 :
4051 229 : static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4052 : unsigned int *len,
4053 : unsigned int *freq_list)
4054 : {
4055 229 : struct wpa_supplicant *wpa_s = ctx;
4056 :
4057 229 : return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4058 : WPA_IF_P2P_CLIENT, len, freq_list);
4059 : }
4060 :
4061 :
4062 : /**
4063 : * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4064 : * @global: Pointer to global data from wpa_supplicant_init()
4065 : * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4066 : * Returns: 0 on success, -1 on failure
4067 : */
4068 560 : int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4069 : {
4070 : struct p2p_config p2p;
4071 : int i;
4072 :
4073 560 : if (wpa_s->conf->p2p_disabled)
4074 0 : return 0;
4075 :
4076 560 : if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4077 44 : return 0;
4078 :
4079 516 : if (global->p2p)
4080 277 : return 0;
4081 :
4082 239 : os_memset(&p2p, 0, sizeof(p2p));
4083 239 : p2p.cb_ctx = wpa_s;
4084 239 : p2p.debug_print = wpas_p2p_debug_print;
4085 239 : p2p.p2p_scan = wpas_p2p_scan;
4086 239 : p2p.send_action = wpas_send_action;
4087 239 : p2p.send_action_done = wpas_send_action_done;
4088 239 : p2p.go_neg_completed = wpas_go_neg_completed;
4089 239 : p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4090 239 : p2p.dev_found = wpas_dev_found;
4091 239 : p2p.dev_lost = wpas_dev_lost;
4092 239 : p2p.find_stopped = wpas_find_stopped;
4093 239 : p2p.start_listen = wpas_start_listen;
4094 239 : p2p.stop_listen = wpas_stop_listen;
4095 239 : p2p.send_probe_resp = wpas_send_probe_resp;
4096 239 : p2p.sd_request = wpas_sd_request;
4097 239 : p2p.sd_response = wpas_sd_response;
4098 239 : p2p.prov_disc_req = wpas_prov_disc_req;
4099 239 : p2p.prov_disc_resp = wpas_prov_disc_resp;
4100 239 : p2p.prov_disc_fail = wpas_prov_disc_fail;
4101 239 : p2p.invitation_process = wpas_invitation_process;
4102 239 : p2p.invitation_received = wpas_invitation_received;
4103 239 : p2p.invitation_result = wpas_invitation_result;
4104 239 : p2p.get_noa = wpas_get_noa;
4105 239 : p2p.go_connected = wpas_go_connected;
4106 239 : p2p.presence_resp = wpas_presence_resp;
4107 239 : p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
4108 239 : p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
4109 239 : p2p.get_persistent_group = wpas_get_persistent_group;
4110 239 : p2p.get_go_info = wpas_get_go_info;
4111 239 : p2p.remove_stale_groups = wpas_remove_stale_groups;
4112 239 : p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
4113 239 : p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
4114 239 : p2p.p2ps_group_capability = p2ps_group_capability;
4115 239 : p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
4116 :
4117 239 : os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
4118 239 : os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
4119 239 : p2p.dev_name = wpa_s->conf->device_name;
4120 239 : p2p.manufacturer = wpa_s->conf->manufacturer;
4121 239 : p2p.model_name = wpa_s->conf->model_name;
4122 239 : p2p.model_number = wpa_s->conf->model_number;
4123 239 : p2p.serial_number = wpa_s->conf->serial_number;
4124 239 : if (wpa_s->wps) {
4125 239 : os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4126 239 : p2p.config_methods = wpa_s->wps->config_methods;
4127 : }
4128 :
4129 239 : if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4130 0 : wpa_printf(MSG_ERROR,
4131 : "P2P: Failed to configure supported channel list");
4132 0 : return -1;
4133 : }
4134 :
4135 239 : if (wpa_s->conf->p2p_listen_reg_class &&
4136 0 : wpa_s->conf->p2p_listen_channel) {
4137 0 : p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4138 0 : p2p.channel = wpa_s->conf->p2p_listen_channel;
4139 0 : p2p.channel_forced = 1;
4140 : } else {
4141 : /*
4142 : * Pick one of the social channels randomly as the listen
4143 : * channel.
4144 : */
4145 239 : if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4146 : &p2p.channel) != 0) {
4147 0 : wpa_printf(MSG_INFO,
4148 : "P2P: No social channels supported by the driver - do not enable P2P");
4149 0 : return 0;
4150 : }
4151 239 : p2p.channel_forced = 0;
4152 : }
4153 478 : wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4154 478 : p2p.reg_class, p2p.channel);
4155 :
4156 239 : if (wpa_s->conf->p2p_oper_reg_class &&
4157 0 : wpa_s->conf->p2p_oper_channel) {
4158 0 : p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4159 0 : p2p.op_channel = wpa_s->conf->p2p_oper_channel;
4160 0 : p2p.cfg_op_channel = 1;
4161 0 : wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4162 0 : "%d:%d", p2p.op_reg_class, p2p.op_channel);
4163 :
4164 : } else {
4165 : /*
4166 : * Use random operation channel from 2.4 GHz band social
4167 : * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4168 : * other preference is indicated.
4169 : */
4170 239 : if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4171 : &p2p.op_channel) != 0) {
4172 0 : wpa_printf(MSG_ERROR,
4173 : "P2P: Failed to select random social channel as operation channel");
4174 0 : return -1;
4175 : }
4176 239 : p2p.cfg_op_channel = 0;
4177 478 : wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4178 478 : "%d:%d", p2p.op_reg_class, p2p.op_channel);
4179 : }
4180 :
4181 239 : if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4182 0 : p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4183 0 : p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4184 : }
4185 :
4186 239 : if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4187 0 : os_memcpy(p2p.country, wpa_s->conf->country, 2);
4188 0 : p2p.country[2] = 0x04;
4189 : } else
4190 239 : os_memcpy(p2p.country, "XX\x04", 3);
4191 :
4192 239 : os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4193 : WPS_DEV_TYPE_LEN);
4194 :
4195 239 : p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4196 239 : os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4197 : p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
4198 :
4199 239 : p2p.concurrent_operations = !!(wpa_s->drv_flags &
4200 : WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4201 :
4202 239 : p2p.max_peers = 100;
4203 :
4204 239 : if (wpa_s->conf->p2p_ssid_postfix) {
4205 0 : p2p.ssid_postfix_len =
4206 0 : os_strlen(wpa_s->conf->p2p_ssid_postfix);
4207 0 : if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4208 0 : p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4209 0 : os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4210 : p2p.ssid_postfix_len);
4211 : }
4212 :
4213 239 : p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4214 :
4215 239 : p2p.max_listen = wpa_s->max_remain_on_chan;
4216 :
4217 239 : if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4218 0 : wpa_s->conf->p2p_passphrase_len <= 63)
4219 0 : p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4220 : else
4221 239 : p2p.passphrase_len = 8;
4222 :
4223 239 : global->p2p = p2p_init(&p2p);
4224 239 : if (global->p2p == NULL)
4225 0 : return -1;
4226 239 : global->p2p_init_wpa_s = wpa_s;
4227 :
4228 2629 : for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4229 2390 : if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4230 2390 : continue;
4231 0 : p2p_add_wps_vendor_extension(
4232 0 : global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4233 : }
4234 :
4235 239 : p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4236 :
4237 239 : return 0;
4238 : }
4239 :
4240 :
4241 : /**
4242 : * wpas_p2p_deinit - Deinitialize per-interface P2P data
4243 : * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4244 : *
4245 : * This function deinitialize per-interface P2P data.
4246 : */
4247 612 : void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4248 : {
4249 612 : if (wpa_s->driver && wpa_s->drv_priv)
4250 591 : wpa_drv_probe_req_report(wpa_s, 0);
4251 :
4252 612 : if (wpa_s->go_params) {
4253 : /* Clear any stored provisioning info */
4254 121 : p2p_clear_provisioning_info(
4255 121 : wpa_s->global->p2p,
4256 121 : wpa_s->go_params->peer_device_addr);
4257 : }
4258 :
4259 612 : os_free(wpa_s->go_params);
4260 612 : wpa_s->go_params = NULL;
4261 612 : eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
4262 612 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4263 612 : eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4264 612 : wpa_s->p2p_long_listen = 0;
4265 612 : eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4266 612 : eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4267 612 : wpas_p2p_remove_pending_group_interface(wpa_s);
4268 612 : eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
4269 612 : wpas_p2p_listen_work_done(wpa_s);
4270 612 : if (wpa_s->p2p_send_action_work) {
4271 0 : os_free(wpa_s->p2p_send_action_work->ctx);
4272 0 : radio_work_done(wpa_s->p2p_send_action_work);
4273 0 : wpa_s->p2p_send_action_work = NULL;
4274 : }
4275 612 : eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
4276 :
4277 612 : wpabuf_free(wpa_s->p2p_oob_dev_pw);
4278 612 : wpa_s->p2p_oob_dev_pw = NULL;
4279 :
4280 612 : os_free(wpa_s->p2p_group_common_freqs);
4281 612 : wpa_s->p2p_group_common_freqs = NULL;
4282 612 : wpa_s->p2p_group_common_freqs_num = 0;
4283 :
4284 : /* TODO: remove group interface from the driver if this wpa_s instance
4285 : * is on top of a P2P group interface */
4286 612 : }
4287 :
4288 :
4289 : /**
4290 : * wpas_p2p_deinit_global - Deinitialize global P2P module
4291 : * @global: Pointer to global data from wpa_supplicant_init()
4292 : *
4293 : * This function deinitializes the global (per device) P2P module.
4294 : */
4295 239 : static void wpas_p2p_deinit_global(struct wpa_global *global)
4296 : {
4297 : struct wpa_supplicant *wpa_s, *tmp;
4298 :
4299 239 : wpa_s = global->ifaces;
4300 :
4301 239 : wpas_p2p_service_flush(global->p2p_init_wpa_s);
4302 :
4303 : /* Remove remaining P2P group interfaces */
4304 478 : while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4305 0 : wpa_s = wpa_s->next;
4306 478 : while (wpa_s) {
4307 133 : tmp = global->ifaces;
4308 399 : while (tmp &&
4309 0 : (tmp == wpa_s ||
4310 0 : tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4311 133 : tmp = tmp->next;
4312 : }
4313 133 : if (tmp == NULL)
4314 133 : break;
4315 : /* Disconnect from the P2P group and deinit the interface */
4316 0 : wpas_p2p_disconnect(tmp);
4317 : }
4318 :
4319 : /*
4320 : * Deinit GO data on any possibly remaining interface (if main
4321 : * interface is used as GO).
4322 : */
4323 372 : for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4324 133 : if (wpa_s->ap_iface)
4325 0 : wpas_p2p_group_deinit(wpa_s);
4326 : }
4327 :
4328 239 : p2p_deinit(global->p2p);
4329 239 : global->p2p = NULL;
4330 239 : global->p2p_init_wpa_s = NULL;
4331 239 : }
4332 :
4333 :
4334 750 : static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4335 : {
4336 1492 : if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4337 742 : wpa_s->conf->p2p_no_group_iface)
4338 592 : return 0; /* separate interface disabled per configuration */
4339 158 : if (wpa_s->drv_flags &
4340 : (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4341 : WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
4342 158 : return 1; /* P2P group requires a new interface in every case
4343 : */
4344 0 : if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4345 0 : return 0; /* driver does not support concurrent operations */
4346 0 : if (wpa_s->global->ifaces->next)
4347 0 : return 1; /* more that one interface already in use */
4348 0 : if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4349 0 : return 1; /* this interface is already in use */
4350 0 : return 0;
4351 : }
4352 :
4353 :
4354 173 : static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4355 : const u8 *peer_addr,
4356 : enum p2p_wps_method wps_method,
4357 : int go_intent, const u8 *own_interface_addr,
4358 : unsigned int force_freq, int persistent_group,
4359 : struct wpa_ssid *ssid, unsigned int pref_freq)
4360 : {
4361 173 : if (persistent_group && wpa_s->conf->persistent_reconnect)
4362 14 : persistent_group = 2;
4363 :
4364 : /*
4365 : * Increase GO config timeout if HT40 is used since it takes some time
4366 : * to scan channels for coex purposes before the BSS can be started.
4367 : */
4368 173 : p2p_set_config_timeout(wpa_s->global->p2p,
4369 173 : wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4370 :
4371 355 : return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4372 : go_intent, own_interface_addr, force_freq,
4373 : persistent_group, ssid ? ssid->ssid : NULL,
4374 : ssid ? ssid->ssid_len : 0,
4375 173 : wpa_s->p2p_pd_before_go_neg, pref_freq,
4376 9 : wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4377 : 0);
4378 : }
4379 :
4380 :
4381 93 : static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4382 : const u8 *peer_addr,
4383 : enum p2p_wps_method wps_method,
4384 : int go_intent, const u8 *own_interface_addr,
4385 : unsigned int force_freq, int persistent_group,
4386 : struct wpa_ssid *ssid, unsigned int pref_freq)
4387 : {
4388 93 : if (persistent_group && wpa_s->conf->persistent_reconnect)
4389 17 : persistent_group = 2;
4390 :
4391 98 : return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4392 : go_intent, own_interface_addr, force_freq,
4393 : persistent_group, ssid ? ssid->ssid : NULL,
4394 : ssid ? ssid->ssid_len : 0, pref_freq,
4395 5 : wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4396 : 0);
4397 : }
4398 :
4399 :
4400 8 : static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4401 : {
4402 8 : wpa_s->p2p_join_scan_count++;
4403 8 : wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4404 : wpa_s->p2p_join_scan_count);
4405 8 : if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4406 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4407 : " for join operationg - stop join attempt",
4408 0 : MAC2STR(wpa_s->pending_join_iface_addr));
4409 0 : eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4410 0 : if (wpa_s->p2p_auto_pd) {
4411 0 : wpa_s->p2p_auto_pd = 0;
4412 0 : wpa_msg_global(wpa_s, MSG_INFO,
4413 : P2P_EVENT_PROV_DISC_FAILURE
4414 : " p2p_dev_addr=" MACSTR " status=N/A",
4415 0 : MAC2STR(wpa_s->pending_join_dev_addr));
4416 8 : return;
4417 : }
4418 0 : wpa_msg_global(wpa_s->parent, MSG_INFO,
4419 : P2P_EVENT_GROUP_FORMATION_FAILURE);
4420 0 : wpas_notify_p2p_group_formation_failure(wpa_s, "");
4421 : }
4422 : }
4423 :
4424 :
4425 71 : static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4426 : {
4427 : int res;
4428 : unsigned int num, i;
4429 : struct wpa_used_freq_data *freqs;
4430 :
4431 71 : if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4432 : /* Multiple channels are supported and not all are in use */
4433 69 : return 0;
4434 : }
4435 :
4436 2 : freqs = os_calloc(wpa_s->num_multichan_concurrent,
4437 : sizeof(struct wpa_used_freq_data));
4438 2 : if (!freqs)
4439 0 : return 1;
4440 :
4441 2 : num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4442 : wpa_s->num_multichan_concurrent);
4443 :
4444 2 : for (i = 0; i < num; i++) {
4445 2 : if (freqs[i].freq == freq) {
4446 2 : wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4447 : freq);
4448 2 : res = 0;
4449 2 : goto exit_free;
4450 : }
4451 : }
4452 :
4453 0 : wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
4454 0 : res = 1;
4455 :
4456 : exit_free:
4457 2 : os_free(freqs);
4458 2 : return res;
4459 : }
4460 :
4461 :
4462 7 : static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4463 : const u8 *peer_dev_addr)
4464 : {
4465 : struct wpa_bss *bss;
4466 : int updated;
4467 :
4468 7 : bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4469 7 : if (bss == NULL)
4470 3 : return -1;
4471 4 : if (bss->last_update_idx < wpa_s->bss_update_idx) {
4472 0 : wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4473 : "last scan");
4474 0 : return 0;
4475 : }
4476 :
4477 4 : updated = os_reltime_before(&wpa_s->p2p_auto_started,
4478 : &bss->last_update);
4479 4 : wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4480 : "%ld.%06ld (%supdated in last scan)",
4481 : bss->last_update.sec, bss->last_update.usec,
4482 : updated ? "": "not ");
4483 :
4484 4 : return updated;
4485 : }
4486 :
4487 :
4488 75 : static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4489 : struct wpa_scan_results *scan_res)
4490 : {
4491 75 : struct wpa_bss *bss = NULL;
4492 : int freq;
4493 : u8 iface_addr[ETH_ALEN];
4494 :
4495 75 : eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4496 :
4497 75 : if (wpa_s->global->p2p_disabled)
4498 61 : return;
4499 :
4500 150 : wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4501 75 : scan_res ? (int) scan_res->num : -1,
4502 75 : wpa_s->p2p_auto_join ? "auto_" : "");
4503 :
4504 75 : if (scan_res)
4505 75 : wpas_p2p_scan_res_handler(wpa_s, scan_res);
4506 :
4507 75 : if (wpa_s->p2p_auto_pd) {
4508 2 : int join = wpas_p2p_peer_go(wpa_s,
4509 2 : wpa_s->pending_join_dev_addr);
4510 2 : if (join == 0 &&
4511 0 : wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4512 0 : wpa_s->auto_pd_scan_retry++;
4513 0 : bss = wpa_bss_get_bssid_latest(
4514 0 : wpa_s, wpa_s->pending_join_dev_addr);
4515 0 : if (bss) {
4516 0 : freq = bss->freq;
4517 0 : wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4518 : "the peer " MACSTR " at %d MHz",
4519 : wpa_s->auto_pd_scan_retry,
4520 0 : MAC2STR(wpa_s->
4521 : pending_join_dev_addr),
4522 : freq);
4523 0 : wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
4524 0 : return;
4525 : }
4526 : }
4527 :
4528 2 : if (join < 0)
4529 1 : join = 0;
4530 :
4531 2 : wpa_s->p2p_auto_pd = 0;
4532 2 : wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4533 12 : wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4534 12 : MAC2STR(wpa_s->pending_join_dev_addr), join);
4535 6 : if (p2p_prov_disc_req(wpa_s->global->p2p,
4536 2 : wpa_s->pending_join_dev_addr, NULL,
4537 2 : wpa_s->pending_pd_config_methods, join,
4538 2 : 0, wpa_s->user_initiated_pd) < 0) {
4539 0 : wpa_s->p2p_auto_pd = 0;
4540 0 : wpa_msg_global(wpa_s, MSG_INFO,
4541 : P2P_EVENT_PROV_DISC_FAILURE
4542 : " p2p_dev_addr=" MACSTR " status=N/A",
4543 0 : MAC2STR(wpa_s->pending_join_dev_addr));
4544 : }
4545 2 : return;
4546 : }
4547 :
4548 73 : if (wpa_s->p2p_auto_join) {
4549 4 : int join = wpas_p2p_peer_go(wpa_s,
4550 4 : wpa_s->pending_join_dev_addr);
4551 4 : if (join < 0) {
4552 1 : wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4553 : "running a GO -> use GO Negotiation");
4554 1 : wpa_msg_global(wpa_s->parent, MSG_INFO,
4555 : P2P_EVENT_FALLBACK_TO_GO_NEG
4556 : "reason=peer-not-running-GO");
4557 6 : wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4558 2 : wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4559 1 : wpa_s->p2p_persistent_group, 0, 0, 0,
4560 : wpa_s->p2p_go_intent,
4561 : wpa_s->p2p_connect_freq,
4562 : wpa_s->p2p_persistent_id,
4563 1 : wpa_s->p2p_pd_before_go_neg,
4564 1 : wpa_s->p2p_go_ht40,
4565 1 : wpa_s->p2p_go_vht);
4566 1 : return;
4567 : }
4568 :
4569 3 : wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4570 : "try to join the group", join ? "" :
4571 : " in older scan");
4572 3 : if (!join) {
4573 2 : wpa_msg_global(wpa_s->parent, MSG_INFO,
4574 : P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
4575 2 : wpa_s->p2p_fallback_to_go_neg = 1;
4576 : }
4577 : }
4578 :
4579 72 : freq = p2p_get_oper_freq(wpa_s->global->p2p,
4580 72 : wpa_s->pending_join_iface_addr);
4581 143 : if (freq < 0 &&
4582 71 : p2p_get_interface_addr(wpa_s->global->p2p,
4583 71 : wpa_s->pending_join_dev_addr,
4584 17 : iface_addr) == 0 &&
4585 17 : os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4586 9 : && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
4587 12 : wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4588 : "address for join from " MACSTR " to " MACSTR
4589 : " based on newly discovered P2P peer entry",
4590 6 : MAC2STR(wpa_s->pending_join_iface_addr),
4591 6 : MAC2STR(iface_addr));
4592 1 : os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4593 : ETH_ALEN);
4594 :
4595 1 : freq = p2p_get_oper_freq(wpa_s->global->p2p,
4596 1 : wpa_s->pending_join_iface_addr);
4597 : }
4598 72 : if (freq >= 0) {
4599 1 : wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4600 : "from P2P peer table: %d MHz", freq);
4601 : }
4602 72 : if (wpa_s->p2p_join_ssid_len) {
4603 40 : wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4604 : MACSTR " and SSID %s",
4605 30 : MAC2STR(wpa_s->pending_join_iface_addr),
4606 5 : wpa_ssid_txt(wpa_s->p2p_join_ssid,
4607 : wpa_s->p2p_join_ssid_len));
4608 10 : bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4609 5 : wpa_s->p2p_join_ssid,
4610 : wpa_s->p2p_join_ssid_len);
4611 : }
4612 72 : if (!bss) {
4613 408 : wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4614 408 : MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4615 68 : bss = wpa_bss_get_bssid_latest(wpa_s,
4616 68 : wpa_s->pending_join_iface_addr);
4617 : }
4618 72 : if (bss) {
4619 : u8 dev_addr[ETH_ALEN];
4620 :
4621 71 : freq = bss->freq;
4622 142 : wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4623 : "from BSS table: %d MHz (SSID %s)", freq,
4624 71 : wpa_ssid_txt(bss->ssid, bss->ssid_len));
4625 71 : if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4626 71 : dev_addr) == 0 &&
4627 71 : os_memcmp(wpa_s->pending_join_dev_addr,
4628 63 : wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4629 63 : os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4630 : ETH_ALEN) != 0) {
4631 12 : wpa_printf(MSG_DEBUG,
4632 : "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4633 6 : MAC2STR(dev_addr),
4634 6 : MAC2STR(wpa_s->pending_join_dev_addr));
4635 1 : os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4636 : ETH_ALEN);
4637 : }
4638 : }
4639 72 : if (freq > 0) {
4640 : u16 method;
4641 :
4642 71 : if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
4643 0 : wpa_msg_global(wpa_s->parent, MSG_INFO,
4644 : P2P_EVENT_GROUP_FORMATION_FAILURE
4645 : "reason=FREQ_CONFLICT");
4646 0 : wpas_notify_p2p_group_formation_failure(
4647 : wpa_s, "FREQ_CONFLICT");
4648 0 : return;
4649 : }
4650 :
4651 426 : wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4652 : "prior to joining an existing group (GO " MACSTR
4653 : " freq=%u MHz)",
4654 426 : MAC2STR(wpa_s->pending_join_dev_addr), freq);
4655 71 : wpa_s->pending_pd_before_join = 1;
4656 :
4657 71 : switch (wpa_s->pending_join_wps_method) {
4658 : case WPS_PIN_DISPLAY:
4659 3 : method = WPS_CONFIG_KEYPAD;
4660 3 : break;
4661 : case WPS_PIN_KEYPAD:
4662 51 : method = WPS_CONFIG_DISPLAY;
4663 51 : break;
4664 : case WPS_PBC:
4665 6 : method = WPS_CONFIG_PUSHBUTTON;
4666 6 : break;
4667 : case WPS_P2PS:
4668 8 : method = WPS_CONFIG_P2PS;
4669 8 : break;
4670 : default:
4671 3 : method = 0;
4672 3 : break;
4673 : }
4674 :
4675 71 : if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4676 71 : wpa_s->pending_join_dev_addr) ==
4677 : method)) {
4678 : /*
4679 : * We have already performed provision discovery for
4680 : * joining the group. Proceed directly to join
4681 : * operation without duplicated provision discovery. */
4682 84 : wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
4683 : "with " MACSTR " already done - proceed to "
4684 : "join",
4685 84 : MAC2STR(wpa_s->pending_join_dev_addr));
4686 14 : wpa_s->pending_pd_before_join = 0;
4687 14 : goto start;
4688 : }
4689 :
4690 114 : if (p2p_prov_disc_req(wpa_s->global->p2p,
4691 57 : wpa_s->pending_join_dev_addr,
4692 : NULL, method, 1,
4693 57 : freq, wpa_s->user_initiated_pd) < 0) {
4694 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4695 : "Discovery Request before joining an "
4696 : "existing group");
4697 0 : wpa_s->pending_pd_before_join = 0;
4698 0 : goto start;
4699 : }
4700 57 : return;
4701 : }
4702 :
4703 1 : wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4704 1 : eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4705 1 : eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4706 1 : wpas_p2p_check_join_scan_limit(wpa_s);
4707 1 : return;
4708 :
4709 : start:
4710 : /* Start join operation immediately */
4711 14 : wpas_p2p_join_start(wpa_s, 0, NULL, 0);
4712 : }
4713 :
4714 :
4715 82 : static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4716 : const u8 *ssid, size_t ssid_len)
4717 : {
4718 : int ret;
4719 : struct wpa_driver_scan_params params;
4720 : struct wpabuf *wps_ie, *ies;
4721 : size_t ielen;
4722 82 : int freqs[2] = { 0, 0 };
4723 :
4724 82 : os_memset(¶ms, 0, sizeof(params));
4725 :
4726 : /* P2P Wildcard SSID */
4727 82 : params.num_ssids = 1;
4728 82 : if (ssid && ssid_len) {
4729 5 : params.ssids[0].ssid = ssid;
4730 5 : params.ssids[0].ssid_len = ssid_len;
4731 5 : os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4732 5 : wpa_s->p2p_join_ssid_len = ssid_len;
4733 : } else {
4734 77 : params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4735 77 : params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4736 77 : wpa_s->p2p_join_ssid_len = 0;
4737 : }
4738 :
4739 82 : wpa_s->wps->dev.p2p = 1;
4740 82 : wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4741 82 : wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4742 : NULL);
4743 82 : if (wps_ie == NULL) {
4744 0 : wpas_p2p_scan_res_join(wpa_s, NULL);
4745 0 : return;
4746 : }
4747 :
4748 82 : ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4749 82 : ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
4750 82 : if (ies == NULL) {
4751 0 : wpabuf_free(wps_ie);
4752 0 : wpas_p2p_scan_res_join(wpa_s, NULL);
4753 0 : return;
4754 : }
4755 82 : wpabuf_put_buf(ies, wps_ie);
4756 82 : wpabuf_free(wps_ie);
4757 :
4758 82 : p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
4759 :
4760 82 : params.p2p_probe = 1;
4761 82 : params.extra_ies = wpabuf_head(ies);
4762 82 : params.extra_ies_len = wpabuf_len(ies);
4763 :
4764 82 : if (!freq) {
4765 : int oper_freq;
4766 : /*
4767 : * If freq is not provided, check the operating freq of the GO
4768 : * and use a single channel scan on if possible.
4769 : */
4770 49 : oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4771 49 : wpa_s->pending_join_iface_addr);
4772 49 : if (oper_freq > 0)
4773 0 : freq = oper_freq;
4774 : }
4775 82 : if (freq > 0) {
4776 33 : freqs[0] = freq;
4777 33 : params.freqs = freqs;
4778 : }
4779 :
4780 : /*
4781 : * Run a scan to update BSS table and start Provision Discovery once
4782 : * the new scan results become available.
4783 : */
4784 82 : ret = wpa_drv_scan(wpa_s, ¶ms);
4785 82 : if (!ret) {
4786 75 : os_get_reltime(&wpa_s->scan_trigger_time);
4787 75 : wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4788 75 : wpa_s->own_scan_requested = 1;
4789 : }
4790 :
4791 82 : wpabuf_free(ies);
4792 :
4793 82 : if (ret) {
4794 7 : wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4795 : "try again later");
4796 7 : eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4797 7 : eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4798 7 : wpas_p2p_check_join_scan_limit(wpa_s);
4799 : }
4800 : }
4801 :
4802 :
4803 10 : static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4804 : {
4805 10 : struct wpa_supplicant *wpa_s = eloop_ctx;
4806 10 : wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
4807 10 : }
4808 :
4809 :
4810 72 : static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
4811 : const u8 *dev_addr, enum p2p_wps_method wps_method,
4812 : int auto_join, int op_freq,
4813 : const u8 *ssid, size_t ssid_len)
4814 : {
4815 936 : wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
4816 : MACSTR " dev " MACSTR " op_freq=%d)%s",
4817 864 : MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
4818 : auto_join ? " (auto_join)" : "");
4819 72 : if (ssid && ssid_len) {
4820 5 : wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4821 : wpa_ssid_txt(ssid, ssid_len));
4822 : }
4823 :
4824 72 : wpa_s->p2p_auto_pd = 0;
4825 72 : wpa_s->p2p_auto_join = !!auto_join;
4826 72 : os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4827 72 : os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4828 72 : wpa_s->pending_join_wps_method = wps_method;
4829 :
4830 : /* Make sure we are not running find during connection establishment */
4831 72 : wpas_p2p_stop_find(wpa_s);
4832 :
4833 72 : wpa_s->p2p_join_scan_count = 0;
4834 72 : wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
4835 72 : return 0;
4836 : }
4837 :
4838 :
4839 74 : static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4840 : const u8 *ssid, size_t ssid_len)
4841 : {
4842 : struct wpa_supplicant *group;
4843 : struct p2p_go_neg_results res;
4844 : struct wpa_bss *bss;
4845 :
4846 74 : group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4847 74 : if (group == NULL)
4848 0 : return -1;
4849 74 : if (group != wpa_s) {
4850 15 : os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4851 : sizeof(group->p2p_pin));
4852 15 : group->p2p_wps_method = wpa_s->p2p_wps_method;
4853 : } else {
4854 : /*
4855 : * Need to mark the current interface for p2p_group_formation
4856 : * when a separate group interface is not used. This is needed
4857 : * to allow p2p_cancel stop a pending p2p_connect-join.
4858 : * wpas_p2p_init_group_interface() addresses this for the case
4859 : * where a separate group interface is used.
4860 : */
4861 59 : wpa_s->global->p2p_group_formation = wpa_s;
4862 : }
4863 :
4864 74 : group->p2p_in_provisioning = 1;
4865 74 : group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
4866 :
4867 74 : os_memset(&res, 0, sizeof(res));
4868 74 : os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
4869 74 : os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4870 : ETH_ALEN);
4871 74 : res.wps_method = wpa_s->pending_join_wps_method;
4872 74 : if (freq && ssid && ssid_len) {
4873 4 : res.freq = freq;
4874 4 : res.ssid_len = ssid_len;
4875 4 : os_memcpy(res.ssid, ssid, ssid_len);
4876 : } else {
4877 70 : bss = wpa_bss_get_bssid_latest(wpa_s,
4878 70 : wpa_s->pending_join_iface_addr);
4879 70 : if (bss) {
4880 70 : res.freq = bss->freq;
4881 70 : res.ssid_len = bss->ssid_len;
4882 70 : os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4883 140 : wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4884 : bss->freq,
4885 70 : wpa_ssid_txt(bss->ssid, bss->ssid_len));
4886 : }
4887 : }
4888 :
4889 74 : if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4890 0 : wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4891 : "starting client");
4892 0 : wpa_drv_cancel_remain_on_channel(wpa_s);
4893 0 : wpa_s->off_channel_freq = 0;
4894 0 : wpa_s->roc_waiting_drv_freq = 0;
4895 : }
4896 74 : wpas_start_wps_enrollee(group, &res);
4897 :
4898 : /*
4899 : * Allow a longer timeout for join-a-running-group than normal 15
4900 : * second group formation timeout since the GO may not have authorized
4901 : * our connection yet.
4902 : */
4903 74 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4904 74 : eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4905 : wpa_s, NULL);
4906 :
4907 74 : return 0;
4908 : }
4909 :
4910 :
4911 315 : static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
4912 : int *force_freq, int *pref_freq, int go,
4913 : unsigned int *pref_freq_list,
4914 : unsigned int *num_pref_freq)
4915 : {
4916 : struct wpa_used_freq_data *freqs;
4917 : int res, best_freq, num_unused;
4918 315 : unsigned int freq_in_use = 0, num, i, max_pref_freq;
4919 :
4920 315 : max_pref_freq = *num_pref_freq;
4921 315 : *num_pref_freq = 0;
4922 :
4923 315 : freqs = os_calloc(wpa_s->num_multichan_concurrent,
4924 : sizeof(struct wpa_used_freq_data));
4925 315 : if (!freqs)
4926 0 : return -1;
4927 :
4928 315 : num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4929 : wpa_s->num_multichan_concurrent);
4930 :
4931 : /*
4932 : * It is possible that the total number of used frequencies is bigger
4933 : * than the number of frequencies used for P2P, so get the system wide
4934 : * number of unused frequencies.
4935 : */
4936 315 : num_unused = wpas_p2p_num_unused_channels(wpa_s);
4937 :
4938 315 : wpa_printf(MSG_DEBUG,
4939 : "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4940 : freq, wpa_s->num_multichan_concurrent, num, num_unused);
4941 :
4942 315 : if (freq > 0) {
4943 : int ret;
4944 51 : if (go)
4945 19 : ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4946 : else
4947 32 : ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4948 51 : if (!ret) {
4949 3 : if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
4950 0 : ieee80211_is_dfs(freq)) {
4951 : /*
4952 : * If freq is a DFS channel and DFS is offloaded
4953 : * to the driver, allow P2P GO to use it.
4954 : */
4955 0 : wpa_printf(MSG_DEBUG,
4956 : "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
4957 : freq);
4958 : } else {
4959 3 : wpa_printf(MSG_DEBUG,
4960 : "P2P: The forced channel (%u MHz) is not supported for P2P uses",
4961 : freq);
4962 3 : res = -3;
4963 3 : goto exit_free;
4964 : }
4965 : }
4966 :
4967 63 : for (i = 0; i < num; i++) {
4968 15 : if (freqs[i].freq == freq)
4969 13 : freq_in_use = 1;
4970 : }
4971 :
4972 48 : if (num_unused <= 0 && !freq_in_use) {
4973 0 : wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4974 : freq);
4975 0 : res = -2;
4976 0 : goto exit_free;
4977 : }
4978 48 : wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4979 : "requested channel (%u MHz)", freq);
4980 48 : *force_freq = freq;
4981 48 : goto exit_ok;
4982 : }
4983 :
4984 264 : best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
4985 :
4986 264 : if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
4987 : enum wpa_driver_if_type iface_type;
4988 :
4989 259 : if (go)
4990 89 : iface_type = WPA_IF_P2P_GO;
4991 : else
4992 170 : iface_type = WPA_IF_P2P_CLIENT;
4993 :
4994 259 : wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
4995 : best_freq, go);
4996 :
4997 259 : res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
4998 : &max_pref_freq,
4999 : pref_freq_list);
5000 259 : if (!res && max_pref_freq > 0) {
5001 0 : *num_pref_freq = max_pref_freq;
5002 0 : i = 0;
5003 0 : while (wpas_p2p_disallowed_freq(wpa_s->global,
5004 0 : pref_freq_list[i]) &&
5005 0 : i < *num_pref_freq) {
5006 0 : wpa_printf(MSG_DEBUG,
5007 : "P2P: preferred_freq_list[%d]=%d is disallowed",
5008 0 : i, pref_freq_list[i]);
5009 0 : i++;
5010 : }
5011 0 : if (i != *num_pref_freq) {
5012 0 : best_freq = pref_freq_list[i];
5013 0 : wpa_printf(MSG_DEBUG,
5014 : "P2P: Using preferred_freq_list[%d]=%d",
5015 : i, best_freq);
5016 : } else {
5017 0 : wpa_printf(MSG_DEBUG,
5018 : "P2P: All driver preferred frequencies are disallowed for P2P use");
5019 0 : *num_pref_freq = 0;
5020 : }
5021 : } else {
5022 259 : wpa_printf(MSG_DEBUG,
5023 : "P2P: No preferred frequency list available");
5024 : }
5025 : }
5026 :
5027 : /* We have a candidate frequency to use */
5028 264 : if (best_freq > 0) {
5029 6 : if (*pref_freq == 0 && num_unused > 0) {
5030 0 : wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
5031 : best_freq);
5032 0 : *pref_freq = best_freq;
5033 : } else {
5034 6 : wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
5035 : best_freq);
5036 6 : *force_freq = best_freq;
5037 : }
5038 258 : } else if (num_unused > 0) {
5039 258 : wpa_printf(MSG_DEBUG,
5040 : "P2P: Current operating channels are not available for P2P. Try to use another channel");
5041 258 : *force_freq = 0;
5042 : } else {
5043 0 : wpa_printf(MSG_DEBUG,
5044 : "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5045 0 : res = -2;
5046 0 : goto exit_free;
5047 : }
5048 :
5049 : exit_ok:
5050 312 : res = 0;
5051 : exit_free:
5052 315 : os_free(freqs);
5053 315 : return res;
5054 : }
5055 :
5056 :
5057 : /**
5058 : * wpas_p2p_connect - Request P2P Group Formation to be started
5059 : * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5060 : * @peer_addr: Address of the peer P2P Device
5061 : * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5062 : * @persistent_group: Whether to create a persistent group
5063 : * @auto_join: Whether to select join vs. GO Negotiation automatically
5064 : * @join: Whether to join an existing group (as a client) instead of starting
5065 : * Group Owner negotiation; @peer_addr is BSSID in that case
5066 : * @auth: Whether to only authorize the connection instead of doing that and
5067 : * initiating Group Owner negotiation
5068 : * @go_intent: GO Intent or -1 to use default
5069 : * @freq: Frequency for the group or 0 for auto-selection
5070 : * @persistent_id: Persistent group credentials to use for forcing GO
5071 : * parameters or -1 to generate new values (SSID/passphrase)
5072 : * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5073 : * interoperability workaround when initiating group formation
5074 : * @ht40: Start GO with 40 MHz channel width
5075 : * @vht: Start GO with VHT support
5076 : * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5077 : * failure, -2 on failure due to channel not currently available,
5078 : * -3 if forced channel is not supported
5079 : */
5080 338 : int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5081 : const char *pin, enum p2p_wps_method wps_method,
5082 : int persistent_group, int auto_join, int join, int auth,
5083 : int go_intent, int freq, int persistent_id, int pd,
5084 : int ht40, int vht)
5085 : {
5086 338 : int force_freq = 0, pref_freq = 0;
5087 338 : int ret = 0, res;
5088 : enum wpa_driver_if_type iftype;
5089 : const u8 *if_addr;
5090 338 : struct wpa_ssid *ssid = NULL;
5091 : unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
5092 :
5093 338 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5094 0 : return -1;
5095 :
5096 338 : if (persistent_id >= 0) {
5097 1 : ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5098 2 : if (ssid == NULL || ssid->disabled != 2 ||
5099 1 : ssid->mode != WPAS_MODE_P2P_GO)
5100 0 : return -1;
5101 : }
5102 :
5103 338 : os_free(wpa_s->global->add_psk);
5104 338 : wpa_s->global->add_psk = NULL;
5105 :
5106 338 : wpa_s->global->p2p_fail_on_wps_complete = 0;
5107 338 : wpa_s->global->pending_p2ps_group = 0;
5108 338 : wpa_s->p2ps_method_config_any = 0;
5109 :
5110 338 : if (go_intent < 0)
5111 201 : go_intent = wpa_s->conf->p2p_go_intent;
5112 :
5113 338 : if (!auth)
5114 243 : wpa_s->p2p_long_listen = 0;
5115 :
5116 338 : wpa_s->p2p_wps_method = wps_method;
5117 338 : wpa_s->p2p_persistent_group = !!persistent_group;
5118 338 : wpa_s->p2p_persistent_id = persistent_id;
5119 338 : wpa_s->p2p_go_intent = go_intent;
5120 338 : wpa_s->p2p_connect_freq = freq;
5121 338 : wpa_s->p2p_fallback_to_go_neg = 0;
5122 338 : wpa_s->p2p_pd_before_go_neg = !!pd;
5123 338 : wpa_s->p2p_go_ht40 = !!ht40;
5124 338 : wpa_s->p2p_go_vht = !!vht;
5125 :
5126 338 : if (pin)
5127 246 : os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5128 92 : else if (wps_method == WPS_PIN_DISPLAY) {
5129 4 : ret = wps_generate_pin();
5130 4 : res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5131 : "%08d", ret);
5132 4 : if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5133 0 : wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
5134 4 : wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5135 4 : wpa_s->p2p_pin);
5136 : } else
5137 88 : wpa_s->p2p_pin[0] = '\0';
5138 :
5139 338 : if (join || auto_join) {
5140 : u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
5141 69 : if (auth) {
5142 12 : wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5143 : "connect a running group from " MACSTR,
5144 12 : MAC2STR(peer_addr));
5145 2 : os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5146 2 : return ret;
5147 : }
5148 67 : os_memcpy(dev_addr, peer_addr, ETH_ALEN);
5149 67 : if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
5150 : iface_addr) < 0) {
5151 55 : os_memcpy(iface_addr, peer_addr, ETH_ALEN);
5152 55 : p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5153 : dev_addr);
5154 : }
5155 67 : if (auto_join) {
5156 4 : os_get_reltime(&wpa_s->p2p_auto_started);
5157 4 : wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5158 : "%ld.%06ld",
5159 : wpa_s->p2p_auto_started.sec,
5160 : wpa_s->p2p_auto_started.usec);
5161 : }
5162 67 : wpa_s->user_initiated_pd = 1;
5163 67 : if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
5164 : auto_join, freq, NULL, 0) < 0)
5165 0 : return -1;
5166 67 : return ret;
5167 : }
5168 :
5169 269 : size = P2P_MAX_PREF_CHANNELS;
5170 269 : res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5171 : go_intent == 15, pref_freq_list, &size);
5172 269 : if (res)
5173 3 : return res;
5174 266 : wpas_p2p_set_own_freq_preference(wpa_s,
5175 266 : force_freq ? force_freq : pref_freq);
5176 :
5177 266 : p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5178 :
5179 266 : wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5180 :
5181 266 : if (wpa_s->create_p2p_iface) {
5182 : /* Prepare to add a new interface for the group */
5183 33 : iftype = WPA_IF_P2P_GROUP;
5184 33 : if (go_intent == 15)
5185 10 : iftype = WPA_IF_P2P_GO;
5186 33 : if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5187 0 : wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5188 : "interface for the group");
5189 0 : return -1;
5190 : }
5191 :
5192 33 : if_addr = wpa_s->pending_interface_addr;
5193 : } else {
5194 233 : if_addr = wpa_s->own_addr;
5195 233 : os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5196 : }
5197 :
5198 266 : if (auth) {
5199 93 : if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
5200 : go_intent, if_addr,
5201 : force_freq, persistent_group, ssid,
5202 : pref_freq) < 0)
5203 0 : return -1;
5204 93 : return ret;
5205 : }
5206 :
5207 173 : if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5208 : go_intent, if_addr, force_freq,
5209 : persistent_group, ssid, pref_freq) < 0) {
5210 1 : if (wpa_s->create_p2p_iface)
5211 0 : wpas_p2p_remove_pending_group_interface(wpa_s);
5212 1 : return -1;
5213 : }
5214 172 : return ret;
5215 : }
5216 :
5217 :
5218 : /**
5219 : * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5220 : * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5221 : * @freq: Frequency of the channel in MHz
5222 : * @duration: Duration of the stay on the channel in milliseconds
5223 : *
5224 : * This callback is called when the driver indicates that it has started the
5225 : * requested remain-on-channel duration.
5226 : */
5227 1790 : void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5228 : unsigned int freq, unsigned int duration)
5229 : {
5230 1790 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5231 1790 : return;
5232 1790 : wpa_printf(MSG_DEBUG, "P2P: remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u duration=%u)",
5233 : wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5234 : wpa_s->roc_waiting_drv_freq, freq, duration);
5235 3580 : if (wpa_s->off_channel_freq &&
5236 1790 : wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
5237 1788 : p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5238 : wpa_s->pending_listen_duration);
5239 1788 : wpa_s->pending_listen_freq = 0;
5240 : } else {
5241 2 : wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5242 : wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5243 : freq, duration);
5244 : }
5245 : }
5246 :
5247 :
5248 740 : int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
5249 : {
5250 : /* Limit maximum Listen state time based on driver limitation. */
5251 740 : if (timeout > wpa_s->max_remain_on_chan)
5252 738 : timeout = wpa_s->max_remain_on_chan;
5253 :
5254 740 : return p2p_listen(wpa_s->global->p2p, timeout);
5255 : }
5256 :
5257 :
5258 : /**
5259 : * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5260 : * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5261 : * @freq: Frequency of the channel in MHz
5262 : *
5263 : * This callback is called when the driver indicates that a remain-on-channel
5264 : * operation has been completed, i.e., the duration on the requested channel
5265 : * has timed out.
5266 : */
5267 1694 : void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5268 : unsigned int freq)
5269 : {
5270 1694 : wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
5271 : "(p2p_long_listen=%d ms pending_action_tx=%p)",
5272 : wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
5273 1694 : wpas_p2p_listen_work_done(wpa_s);
5274 1694 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5275 0 : return;
5276 1694 : if (wpa_s->p2p_long_listen > 0)
5277 38 : wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
5278 1694 : if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5279 16 : return; /* P2P module started a new operation */
5280 1678 : if (offchannel_pending_action_tx(wpa_s))
5281 145 : return;
5282 1533 : if (wpa_s->p2p_long_listen > 0) {
5283 33 : wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
5284 33 : wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
5285 : } else {
5286 : /*
5287 : * When listen duration is over, stop listen & update p2p_state
5288 : * to IDLE.
5289 : */
5290 1500 : p2p_stop_listen(wpa_s->global->p2p);
5291 : }
5292 : }
5293 :
5294 :
5295 : /**
5296 : * wpas_p2p_group_remove - Remove a P2P group
5297 : * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5298 : * @ifname: Network interface name of the group interface or "*" to remove all
5299 : * groups
5300 : * Returns: 0 on success, -1 on failure
5301 : *
5302 : * This function is used to remove a P2P group. This can be used to disconnect
5303 : * from a group in which the local end is a P2P Client or to end a P2P Group in
5304 : * case the local end is the Group Owner. If a virtual network interface was
5305 : * created for this group, that interface will be removed. Otherwise, only the
5306 : * configured P2P group network will be removed from the interface.
5307 : */
5308 5657 : int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5309 : {
5310 5657 : struct wpa_global *global = wpa_s->global;
5311 5657 : struct wpa_supplicant *calling_wpa_s = wpa_s;
5312 :
5313 5657 : if (os_strcmp(ifname, "*") == 0) {
5314 : struct wpa_supplicant *prev;
5315 5335 : wpa_s = global->ifaces;
5316 15806 : while (wpa_s) {
5317 5136 : prev = wpa_s;
5318 5136 : wpa_s = wpa_s->next;
5319 5136 : if (prev->p2p_group_interface !=
5320 5131 : NOT_P2P_GROUP_INTERFACE ||
5321 5990 : (prev->current_ssid &&
5322 859 : prev->current_ssid->p2p_group))
5323 80 : wpas_p2p_disconnect_safely(prev, calling_wpa_s);
5324 : }
5325 5335 : return 0;
5326 : }
5327 :
5328 325 : for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5329 322 : if (os_strcmp(wpa_s->ifname, ifname) == 0)
5330 319 : break;
5331 : }
5332 :
5333 322 : return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
5334 : }
5335 :
5336 :
5337 211 : static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5338 : {
5339 : unsigned int r;
5340 :
5341 211 : if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5342 50 : unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5343 : unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5344 : int res;
5345 :
5346 50 : res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5347 : &size, pref_freq_list);
5348 50 : if (!res && size > 0) {
5349 0 : i = 0;
5350 0 : while (wpas_p2p_disallowed_freq(wpa_s->global,
5351 0 : pref_freq_list[i]) &&
5352 0 : i < size) {
5353 0 : wpa_printf(MSG_DEBUG,
5354 : "P2P: preferred_freq_list[%d]=%d is disallowed",
5355 : i, pref_freq_list[i]);
5356 0 : i++;
5357 : }
5358 0 : if (i != size) {
5359 0 : freq = pref_freq_list[i];
5360 0 : wpa_printf(MSG_DEBUG,
5361 : "P2P: Using preferred_freq_list[%d]=%d",
5362 : i, freq);
5363 : } else {
5364 0 : wpa_printf(MSG_DEBUG,
5365 : "P2P: All driver preferred frequencies are disallowed for P2P use");
5366 : }
5367 : } else {
5368 50 : wpa_printf(MSG_DEBUG,
5369 : "P2P: No preferred frequency list available");
5370 : }
5371 : }
5372 :
5373 211 : if (freq == 2) {
5374 1 : wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5375 : "band");
5376 1 : if (wpa_s->best_24_freq > 0 &&
5377 0 : p2p_supported_freq_go(wpa_s->global->p2p,
5378 0 : wpa_s->best_24_freq)) {
5379 0 : freq = wpa_s->best_24_freq;
5380 0 : wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5381 : "channel: %d MHz", freq);
5382 : } else {
5383 1 : if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5384 0 : return -1;
5385 1 : freq = 2412 + (r % 3) * 25;
5386 1 : wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5387 : "channel: %d MHz", freq);
5388 : }
5389 : }
5390 :
5391 211 : if (freq == 5) {
5392 2 : wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5393 : "band");
5394 2 : if (wpa_s->best_5_freq > 0 &&
5395 0 : p2p_supported_freq_go(wpa_s->global->p2p,
5396 0 : wpa_s->best_5_freq)) {
5397 0 : freq = wpa_s->best_5_freq;
5398 0 : wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5399 : "channel: %d MHz", freq);
5400 : } else {
5401 2 : if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5402 0 : return -1;
5403 2 : freq = 5180 + (r % 4) * 20;
5404 2 : if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5405 0 : wpa_printf(MSG_DEBUG, "P2P: Could not select "
5406 : "5 GHz channel for P2P group");
5407 0 : return -1;
5408 : }
5409 2 : wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5410 : "channel: %d MHz", freq);
5411 : }
5412 : }
5413 :
5414 211 : if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
5415 1 : if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5416 0 : ieee80211_is_dfs(freq)) {
5417 : /*
5418 : * If freq is a DFS channel and DFS is offloaded to the
5419 : * driver, allow P2P GO to use it.
5420 : */
5421 0 : wpa_printf(MSG_DEBUG, "P2P: "
5422 : "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5423 : __func__, freq);
5424 0 : return freq;
5425 : }
5426 1 : wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5427 : "(%u MHz) is not supported for P2P uses",
5428 : freq);
5429 1 : return -1;
5430 : }
5431 :
5432 210 : return freq;
5433 : }
5434 :
5435 :
5436 247 : static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5437 : const struct p2p_channels *channels,
5438 : int freq)
5439 : {
5440 457 : if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5441 420 : p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5442 210 : freq_included(wpa_s, channels, freq))
5443 210 : return 1;
5444 37 : return 0;
5445 : }
5446 :
5447 :
5448 49 : static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5449 : struct p2p_go_neg_results *params,
5450 : const struct p2p_channels *channels)
5451 : {
5452 : unsigned int i, r;
5453 :
5454 : /* first try some random selection of the social channels */
5455 49 : if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5456 0 : return;
5457 :
5458 70 : for (i = 0; i < 3; i++) {
5459 63 : params->freq = 2412 + ((r + i) % 3) * 25;
5460 63 : if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5461 42 : goto out;
5462 : }
5463 :
5464 : /* try all other channels in operating class 81 */
5465 34 : for (i = 0; i < 11; i++) {
5466 32 : params->freq = 2412 + i * 5;
5467 :
5468 : /* skip social channels; covered in the previous loop */
5469 57 : if (params->freq == 2412 ||
5470 48 : params->freq == 2437 ||
5471 23 : params->freq == 2462)
5472 11 : continue;
5473 :
5474 21 : if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
5475 5 : goto out;
5476 : }
5477 :
5478 : /* try all channels in operating class 115 */
5479 2 : for (i = 0; i < 4; i++) {
5480 2 : params->freq = 5180 + i * 20;
5481 4 : if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5482 4 : freq_included(wpa_s, channels, params->freq) &&
5483 2 : p2p_supported_freq(wpa_s->global->p2p, params->freq))
5484 2 : goto out;
5485 : }
5486 :
5487 : /* try all channels in operating class 124 */
5488 0 : for (i = 0; i < 4; i++) {
5489 0 : params->freq = 5745 + i * 20;
5490 0 : if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5491 0 : freq_included(wpa_s, channels, params->freq) &&
5492 0 : p2p_supported_freq(wpa_s->global->p2p, params->freq))
5493 0 : goto out;
5494 : }
5495 :
5496 : /* try social channel class 180 channel 2 */
5497 0 : params->freq = 58320 + 1 * 2160;
5498 0 : if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5499 0 : freq_included(wpa_s, channels, params->freq) &&
5500 0 : p2p_supported_freq(wpa_s->global->p2p, params->freq))
5501 0 : goto out;
5502 :
5503 : /* try all channels in reg. class 180 */
5504 0 : for (i = 0; i < 4; i++) {
5505 0 : params->freq = 58320 + i * 2160;
5506 0 : if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5507 0 : freq_included(wpa_s, channels, params->freq) &&
5508 0 : p2p_supported_freq(wpa_s->global->p2p, params->freq))
5509 0 : goto out;
5510 : }
5511 :
5512 0 : params->freq = 0;
5513 0 : wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
5514 0 : return;
5515 : out:
5516 49 : wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5517 : params->freq);
5518 : }
5519 :
5520 :
5521 212 : static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5522 : struct p2p_go_neg_results *params,
5523 : int freq, int ht40, int vht,
5524 : const struct p2p_channels *channels)
5525 : {
5526 : struct wpa_used_freq_data *freqs;
5527 : unsigned int cand;
5528 : unsigned int num, i;
5529 :
5530 212 : os_memset(params, 0, sizeof(*params));
5531 212 : params->role_go = 1;
5532 212 : params->ht40 = ht40;
5533 212 : params->vht = vht;
5534 :
5535 212 : if (wpa_s->p2p_group_common_freqs_num)
5536 2 : wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5537 : __func__);
5538 :
5539 212 : freqs = os_calloc(wpa_s->num_multichan_concurrent,
5540 : sizeof(struct wpa_used_freq_data));
5541 212 : if (!freqs)
5542 0 : return -1;
5543 :
5544 212 : num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5545 : wpa_s->num_multichan_concurrent);
5546 :
5547 : /* try using the forced freq */
5548 212 : if (freq) {
5549 151 : if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) {
5550 0 : wpa_printf(MSG_DEBUG,
5551 : "P2P: Forced GO freq %d MHz not accepted",
5552 : freq);
5553 0 : goto fail;
5554 : }
5555 :
5556 154 : for (i = 0; i < num; i++) {
5557 69 : if (freqs[i].freq == freq) {
5558 66 : wpa_printf(MSG_DEBUG,
5559 : "P2P: forced freq (%d MHz) is also shared",
5560 : freq);
5561 66 : params->freq = freq;
5562 66 : goto success;
5563 : }
5564 : }
5565 :
5566 85 : if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5567 0 : wpa_printf(MSG_DEBUG,
5568 : "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5569 : freq);
5570 0 : goto fail;
5571 : }
5572 :
5573 85 : wpa_printf(MSG_DEBUG,
5574 : "P2P: force GO freq (%d MHz) on a free channel",
5575 : freq);
5576 85 : params->freq = freq;
5577 85 : goto success;
5578 : }
5579 :
5580 : /* consider using one of the shared frequencies */
5581 61 : if (num) {
5582 8 : cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5583 8 : if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5584 8 : wpa_printf(MSG_DEBUG,
5585 : "P2P: Use shared freq (%d MHz) for GO",
5586 : freq);
5587 8 : params->freq = cand;
5588 8 : goto success;
5589 : }
5590 :
5591 : /* try using one of the shared freqs */
5592 0 : for (i = 0; i < num; i++) {
5593 0 : if (wpas_p2p_supported_freq_go(wpa_s, channels,
5594 0 : freqs[i].freq)) {
5595 0 : wpa_printf(MSG_DEBUG,
5596 : "P2P: Use shared freq (%d MHz) for GO",
5597 : freq);
5598 0 : params->freq = freqs[i].freq;
5599 0 : goto success;
5600 : }
5601 : }
5602 : }
5603 :
5604 53 : if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5605 0 : wpa_printf(MSG_DEBUG,
5606 : "P2P: Cannot force GO on any of the channels we are already using");
5607 0 : goto fail;
5608 : }
5609 :
5610 : /* try using the setting from the configuration file */
5611 53 : if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5612 0 : wpa_s->conf->p2p_oper_channel >= 1 &&
5613 0 : wpa_s->conf->p2p_oper_channel <= 11 &&
5614 0 : wpas_p2p_supported_freq_go(
5615 : wpa_s, channels,
5616 0 : 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
5617 0 : params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
5618 0 : wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5619 : "frequency %d MHz", params->freq);
5620 0 : goto success;
5621 : }
5622 :
5623 106 : if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5624 106 : wpa_s->conf->p2p_oper_reg_class == 116 ||
5625 106 : wpa_s->conf->p2p_oper_reg_class == 117 ||
5626 106 : wpa_s->conf->p2p_oper_reg_class == 124 ||
5627 106 : wpa_s->conf->p2p_oper_reg_class == 125 ||
5628 106 : wpa_s->conf->p2p_oper_reg_class == 126 ||
5629 53 : wpa_s->conf->p2p_oper_reg_class == 127) &&
5630 0 : wpas_p2p_supported_freq_go(wpa_s, channels,
5631 : 5000 +
5632 0 : 5 * wpa_s->conf->p2p_oper_channel)) {
5633 0 : params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
5634 0 : wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5635 : "frequency %d MHz", params->freq);
5636 0 : goto success;
5637 : }
5638 :
5639 : /* Try using best channels */
5640 93 : if (wpa_s->conf->p2p_oper_channel == 0 &&
5641 40 : wpa_s->best_overall_freq > 0 &&
5642 0 : wpas_p2p_supported_freq_go(wpa_s, channels,
5643 : wpa_s->best_overall_freq)) {
5644 0 : params->freq = wpa_s->best_overall_freq;
5645 0 : wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5646 : "channel %d MHz", params->freq);
5647 0 : goto success;
5648 : }
5649 :
5650 93 : if (wpa_s->conf->p2p_oper_channel == 0 &&
5651 40 : wpa_s->best_24_freq > 0 &&
5652 0 : wpas_p2p_supported_freq_go(wpa_s, channels,
5653 : wpa_s->best_24_freq)) {
5654 0 : params->freq = wpa_s->best_24_freq;
5655 0 : wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5656 : "channel %d MHz", params->freq);
5657 0 : goto success;
5658 : }
5659 :
5660 93 : if (wpa_s->conf->p2p_oper_channel == 0 &&
5661 40 : wpa_s->best_5_freq > 0 &&
5662 0 : wpas_p2p_supported_freq_go(wpa_s, channels,
5663 : wpa_s->best_5_freq)) {
5664 0 : params->freq = wpa_s->best_5_freq;
5665 0 : wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5666 : "channel %d MHz", params->freq);
5667 0 : goto success;
5668 : }
5669 :
5670 : /* try using preferred channels */
5671 53 : cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
5672 53 : if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5673 2 : params->freq = cand;
5674 2 : wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5675 : "channels", params->freq);
5676 2 : goto success;
5677 : }
5678 :
5679 : /* Try using one of the group common freqs */
5680 51 : if (wpa_s->p2p_group_common_freqs) {
5681 2 : for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
5682 2 : cand = wpa_s->p2p_group_common_freqs[i];
5683 2 : if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5684 2 : params->freq = cand;
5685 2 : wpa_printf(MSG_DEBUG,
5686 : "P2P: Use freq %d MHz common with the peer",
5687 : params->freq);
5688 2 : goto success;
5689 : }
5690 : }
5691 : }
5692 :
5693 : /* no preference, select some channel */
5694 49 : wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
5695 :
5696 49 : if (params->freq == 0) {
5697 0 : wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
5698 0 : goto fail;
5699 : }
5700 :
5701 : success:
5702 212 : os_free(freqs);
5703 212 : return 0;
5704 : fail:
5705 0 : os_free(freqs);
5706 0 : return -1;
5707 : }
5708 :
5709 :
5710 : static struct wpa_supplicant *
5711 316 : wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5712 : int go)
5713 : {
5714 : struct wpa_supplicant *group_wpa_s;
5715 :
5716 316 : if (!wpas_p2p_create_iface(wpa_s)) {
5717 211 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5718 : "operations");
5719 211 : wpa_s->p2p_first_connection_timeout = 0;
5720 211 : return wpa_s;
5721 : }
5722 :
5723 105 : if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
5724 : WPA_IF_P2P_CLIENT) < 0) {
5725 1 : wpa_msg_global(wpa_s, MSG_ERROR,
5726 : "P2P: Failed to add group interface");
5727 1 : return NULL;
5728 : }
5729 104 : group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5730 104 : if (group_wpa_s == NULL) {
5731 0 : wpa_msg_global(wpa_s, MSG_ERROR,
5732 : "P2P: Failed to initialize group interface");
5733 0 : wpas_p2p_remove_pending_group_interface(wpa_s);
5734 0 : return NULL;
5735 : }
5736 :
5737 104 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5738 : group_wpa_s->ifname);
5739 104 : group_wpa_s->p2p_first_connection_timeout = 0;
5740 104 : return group_wpa_s;
5741 : }
5742 :
5743 :
5744 : /**
5745 : * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5746 : * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5747 : * @persistent_group: Whether to create a persistent group
5748 : * @freq: Frequency for the group or 0 to indicate no hardcoding
5749 : * @ht40: Start GO with 40 MHz channel width
5750 : * @vht: Start GO with VHT support
5751 : * Returns: 0 on success, -1 on failure
5752 : *
5753 : * This function creates a new P2P group with the local end as the Group Owner,
5754 : * i.e., without using Group Owner Negotiation.
5755 : */
5756 177 : int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
5757 : int freq, int ht40, int vht)
5758 : {
5759 : struct p2p_go_neg_results params;
5760 :
5761 177 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5762 0 : return -1;
5763 :
5764 177 : os_free(wpa_s->global->add_psk);
5765 177 : wpa_s->global->add_psk = NULL;
5766 :
5767 : /* Make sure we are not running find during connection establishment */
5768 177 : wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
5769 177 : wpas_p2p_stop_find_oper(wpa_s);
5770 :
5771 177 : freq = wpas_p2p_select_go_freq(wpa_s, freq);
5772 177 : if (freq < 0)
5773 1 : return -1;
5774 :
5775 176 : if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, NULL))
5776 0 : return -1;
5777 352 : if (params.freq &&
5778 176 : !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
5779 0 : if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5780 0 : ieee80211_is_dfs(params.freq)) {
5781 : /*
5782 : * If freq is a DFS channel and DFS is offloaded to the
5783 : * driver, allow P2P GO to use it.
5784 : */
5785 0 : wpa_printf(MSG_DEBUG,
5786 : "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
5787 : __func__, params.freq);
5788 : } else {
5789 0 : wpa_printf(MSG_DEBUG,
5790 : "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
5791 : params.freq);
5792 0 : return -1;
5793 : }
5794 : }
5795 176 : p2p_go_params(wpa_s->global->p2p, ¶ms);
5796 176 : params.persistent_group = persistent_group;
5797 :
5798 176 : wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5799 176 : if (wpa_s == NULL)
5800 1 : return -1;
5801 175 : wpas_start_wps_go(wpa_s, ¶ms, 0);
5802 :
5803 175 : return 0;
5804 : }
5805 :
5806 :
5807 32 : static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
5808 : struct wpa_ssid *params, int addr_allocated,
5809 : int freq, int force_scan)
5810 : {
5811 : struct wpa_ssid *ssid;
5812 :
5813 32 : wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5814 32 : if (wpa_s == NULL)
5815 0 : return -1;
5816 32 : if (force_scan)
5817 24 : os_get_reltime(&wpa_s->scan_min_time);
5818 32 : wpa_s->p2p_last_4way_hs_fail = NULL;
5819 :
5820 32 : wpa_supplicant_ap_deinit(wpa_s);
5821 :
5822 32 : ssid = wpa_config_add_network(wpa_s->conf);
5823 32 : if (ssid == NULL)
5824 0 : return -1;
5825 32 : os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5826 32 : wpa_config_set_network_defaults(ssid);
5827 32 : ssid->temporary = 1;
5828 32 : ssid->proto = WPA_PROTO_RSN;
5829 32 : ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5830 32 : ssid->group_cipher = WPA_CIPHER_CCMP;
5831 32 : ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5832 32 : ssid->ssid = os_malloc(params->ssid_len);
5833 32 : if (ssid->ssid == NULL) {
5834 0 : wpa_config_remove_network(wpa_s->conf, ssid->id);
5835 0 : return -1;
5836 : }
5837 32 : os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5838 32 : ssid->ssid_len = params->ssid_len;
5839 32 : ssid->p2p_group = 1;
5840 32 : ssid->export_keys = 1;
5841 32 : if (params->psk_set) {
5842 32 : os_memcpy(ssid->psk, params->psk, 32);
5843 32 : ssid->psk_set = 1;
5844 : }
5845 32 : if (params->passphrase)
5846 0 : ssid->passphrase = os_strdup(params->passphrase);
5847 :
5848 32 : wpa_s->show_group_started = 1;
5849 32 : wpa_s->p2p_in_invitation = 1;
5850 32 : wpa_s->p2p_invite_go_freq = freq;
5851 :
5852 32 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5853 : NULL);
5854 32 : eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5855 : wpas_p2p_group_formation_timeout,
5856 32 : wpa_s->parent, NULL);
5857 32 : wpa_supplicant_select_network(wpa_s, ssid);
5858 :
5859 32 : return 0;
5860 : }
5861 :
5862 :
5863 70 : int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5864 : struct wpa_ssid *ssid, int addr_allocated,
5865 : int force_freq, int neg_freq, int ht40,
5866 : int vht, const struct p2p_channels *channels,
5867 : int connection_timeout, int force_scan)
5868 : {
5869 : struct p2p_go_neg_results params;
5870 70 : int go = 0, freq;
5871 :
5872 70 : if (ssid->disabled != 2 || ssid->ssid == NULL)
5873 0 : return -1;
5874 :
5875 74 : if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5876 4 : go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5877 4 : wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5878 : "already running");
5879 5 : if (go == 0 &&
5880 1 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5881 1 : wpa_s->parent, NULL)) {
5882 : /*
5883 : * This can happen if Invitation Response frame was lost
5884 : * and the peer (GO of a persistent group) tries to
5885 : * invite us again. Reschedule the timeout to avoid
5886 : * terminating the wait for the connection too early
5887 : * since we now know that the peer is still trying to
5888 : * invite us instead of having already started the GO.
5889 : */
5890 1 : wpa_printf(MSG_DEBUG,
5891 : "P2P: Reschedule group formation timeout since peer is still trying to invite us");
5892 1 : eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5893 : wpas_p2p_group_formation_timeout,
5894 1 : wpa_s->parent, NULL);
5895 : }
5896 4 : return 0;
5897 : }
5898 :
5899 66 : os_free(wpa_s->global->add_psk);
5900 66 : wpa_s->global->add_psk = NULL;
5901 :
5902 : /* Make sure we are not running find during connection establishment */
5903 66 : wpas_p2p_stop_find_oper(wpa_s);
5904 :
5905 66 : wpa_s->p2p_fallback_to_go_neg = 0;
5906 :
5907 66 : if (ssid->mode == WPAS_MODE_P2P_GO) {
5908 34 : if (force_freq > 0) {
5909 10 : freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5910 10 : if (freq < 0)
5911 0 : return -1;
5912 : } else {
5913 24 : freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5914 24 : if (freq < 0 ||
5915 23 : (freq > 0 && !freq_included(wpa_s, channels, freq)))
5916 0 : freq = 0;
5917 : }
5918 32 : } else if (ssid->mode == WPAS_MODE_INFRA) {
5919 32 : freq = neg_freq;
5920 32 : if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
5921 : struct os_reltime now;
5922 8 : struct wpa_bss *bss =
5923 8 : wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
5924 :
5925 8 : os_get_reltime(&now);
5926 16 : if (bss &&
5927 16 : !os_reltime_expired(&now, &bss->last_update, 5) &&
5928 8 : freq_included(wpa_s, channels, bss->freq))
5929 8 : freq = bss->freq;
5930 : else
5931 0 : freq = 0;
5932 : }
5933 :
5934 32 : return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
5935 : force_scan);
5936 : } else {
5937 0 : return -1;
5938 : }
5939 :
5940 34 : if (wpas_p2p_init_go_params(wpa_s, ¶ms, freq, ht40, vht, channels))
5941 0 : return -1;
5942 :
5943 34 : params.role_go = 1;
5944 34 : params.psk_set = ssid->psk_set;
5945 34 : if (params.psk_set)
5946 34 : os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
5947 34 : if (ssid->passphrase) {
5948 34 : if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
5949 0 : wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
5950 : "persistent group");
5951 0 : return -1;
5952 : }
5953 34 : os_strlcpy(params.passphrase, ssid->passphrase,
5954 : sizeof(params.passphrase));
5955 : }
5956 34 : os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
5957 34 : params.ssid_len = ssid->ssid_len;
5958 34 : params.persistent_group = 1;
5959 :
5960 34 : wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
5961 34 : if (wpa_s == NULL)
5962 0 : return -1;
5963 :
5964 34 : p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
5965 :
5966 34 : wpa_s->p2p_first_connection_timeout = connection_timeout;
5967 34 : wpas_start_wps_go(wpa_s, ¶ms, 0);
5968 :
5969 34 : return 0;
5970 : }
5971 :
5972 :
5973 1380 : static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
5974 : struct wpabuf *proberesp_ies)
5975 : {
5976 1380 : struct wpa_supplicant *wpa_s = ctx;
5977 1380 : if (wpa_s->ap_iface) {
5978 1380 : struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
5979 1380 : if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
5980 87 : wpabuf_free(beacon_ies);
5981 87 : wpabuf_free(proberesp_ies);
5982 1467 : return;
5983 : }
5984 1293 : if (beacon_ies) {
5985 642 : wpabuf_free(hapd->p2p_beacon_ie);
5986 642 : hapd->p2p_beacon_ie = beacon_ies;
5987 : }
5988 1293 : wpabuf_free(hapd->p2p_probe_resp_ie);
5989 1293 : hapd->p2p_probe_resp_ie = proberesp_ies;
5990 : } else {
5991 0 : wpabuf_free(beacon_ies);
5992 0 : wpabuf_free(proberesp_ies);
5993 : }
5994 1293 : wpa_supplicant_ap_update_beacon(wpa_s);
5995 : }
5996 :
5997 :
5998 960 : static void wpas_p2p_idle_update(void *ctx, int idle)
5999 : {
6000 960 : struct wpa_supplicant *wpa_s = ctx;
6001 960 : if (!wpa_s->ap_iface)
6002 0 : return;
6003 960 : wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
6004 960 : if (idle) {
6005 578 : if (wpa_s->global->p2p_fail_on_wps_complete &&
6006 3 : wpa_s->p2p_in_provisioning) {
6007 3 : wpas_p2p_grpform_fail_after_wps(wpa_s);
6008 3 : return;
6009 : }
6010 572 : wpas_p2p_set_group_idle_timeout(wpa_s);
6011 : } else
6012 385 : eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6013 : }
6014 :
6015 :
6016 338 : struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6017 : struct wpa_ssid *ssid)
6018 : {
6019 : struct p2p_group *group;
6020 : struct p2p_group_config *cfg;
6021 :
6022 338 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6023 0 : return NULL;
6024 :
6025 338 : cfg = os_zalloc(sizeof(*cfg));
6026 338 : if (cfg == NULL)
6027 0 : return NULL;
6028 :
6029 338 : if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
6030 58 : cfg->persistent_group = 2;
6031 280 : else if (ssid->p2p_persistent_group)
6032 23 : cfg->persistent_group = 1;
6033 338 : os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
6034 338 : if (wpa_s->max_stations &&
6035 0 : wpa_s->max_stations < wpa_s->conf->max_num_sta)
6036 0 : cfg->max_clients = wpa_s->max_stations;
6037 : else
6038 338 : cfg->max_clients = wpa_s->conf->max_num_sta;
6039 338 : os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6040 338 : cfg->ssid_len = ssid->ssid_len;
6041 338 : cfg->freq = ssid->frequency;
6042 338 : cfg->cb_ctx = wpa_s;
6043 338 : cfg->ie_update = wpas_p2p_ie_update;
6044 338 : cfg->idle_update = wpas_p2p_idle_update;
6045 :
6046 338 : group = p2p_group_init(wpa_s->global->p2p, cfg);
6047 338 : if (group == NULL)
6048 0 : os_free(cfg);
6049 338 : if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
6050 227 : p2p_group_notif_formation_done(group);
6051 338 : wpa_s->p2p_group = group;
6052 338 : return group;
6053 : }
6054 :
6055 :
6056 445 : void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6057 : int registrar)
6058 : {
6059 445 : struct wpa_ssid *ssid = wpa_s->current_ssid;
6060 :
6061 445 : if (!wpa_s->p2p_in_provisioning) {
6062 168 : wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6063 : "provisioning not in progress");
6064 613 : return;
6065 : }
6066 :
6067 277 : if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6068 : u8 go_dev_addr[ETH_ALEN];
6069 174 : os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6070 174 : wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6071 : ssid->ssid_len);
6072 : /* Clear any stored provisioning info */
6073 174 : p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6074 : }
6075 :
6076 277 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6077 : NULL);
6078 277 : wpa_s->p2p_go_group_formation_completed = 1;
6079 277 : if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6080 : /*
6081 : * Use a separate timeout for initial data connection to
6082 : * complete to allow the group to be removed automatically if
6083 : * something goes wrong in this step before the P2P group idle
6084 : * timeout mechanism is taken into use.
6085 : */
6086 174 : wpa_dbg(wpa_s, MSG_DEBUG,
6087 : "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6088 : P2P_MAX_INITIAL_CONN_WAIT);
6089 174 : eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6090 : wpas_p2p_group_formation_timeout,
6091 174 : wpa_s->parent, NULL);
6092 103 : } else if (ssid) {
6093 : /*
6094 : * Use a separate timeout for initial data connection to
6095 : * complete to allow the group to be removed automatically if
6096 : * the client does not complete data connection successfully.
6097 : */
6098 103 : wpa_dbg(wpa_s, MSG_DEBUG,
6099 : "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6100 : P2P_MAX_INITIAL_CONN_WAIT_GO);
6101 103 : eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6102 : wpas_p2p_group_formation_timeout,
6103 103 : wpa_s->parent, NULL);
6104 : /*
6105 : * Complete group formation on first successful data connection
6106 : */
6107 103 : wpa_s->p2p_go_group_formation_completed = 0;
6108 : }
6109 277 : if (wpa_s->global->p2p)
6110 277 : p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
6111 277 : wpas_group_formation_completed(wpa_s, 1, 0);
6112 : }
6113 :
6114 :
6115 102 : void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6116 : struct wps_event_fail *fail)
6117 : {
6118 102 : if (!wpa_s->p2p_in_provisioning) {
6119 95 : wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6120 : "provisioning not in progress");
6121 197 : return;
6122 : }
6123 :
6124 7 : if (wpa_s->go_params) {
6125 4 : p2p_clear_provisioning_info(
6126 4 : wpa_s->global->p2p,
6127 4 : wpa_s->go_params->peer_device_addr);
6128 : }
6129 :
6130 7 : wpas_notify_p2p_wps_failed(wpa_s, fail);
6131 :
6132 7 : if (wpa_s == wpa_s->global->p2p_group_formation) {
6133 : /*
6134 : * Allow some time for the failed WPS negotiation exchange to
6135 : * complete, but remove the group since group formation cannot
6136 : * succeed after provisioning failure.
6137 : */
6138 7 : wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6139 7 : wpa_s->global->p2p_fail_on_wps_complete = 1;
6140 7 : eloop_deplete_timeout(0, 50000,
6141 : wpas_p2p_group_formation_timeout,
6142 7 : wpa_s->parent, NULL);
6143 : }
6144 : }
6145 :
6146 :
6147 2436 : int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6148 : {
6149 2440 : if (!wpa_s->global->p2p_fail_on_wps_complete ||
6150 4 : !wpa_s->p2p_in_provisioning)
6151 2432 : return 0;
6152 :
6153 4 : wpas_p2p_grpform_fail_after_wps(wpa_s);
6154 :
6155 4 : return 1;
6156 : }
6157 :
6158 :
6159 52 : int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6160 : const char *config_method,
6161 : enum wpas_p2p_prov_disc_use use,
6162 : struct p2ps_provision *p2ps_prov)
6163 : {
6164 : u16 config_methods;
6165 :
6166 52 : wpa_s->global->pending_p2ps_group = 0;
6167 52 : wpa_s->p2p_fallback_to_go_neg = 0;
6168 52 : wpa_s->pending_pd_use = NORMAL_PD;
6169 52 : if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6170 31 : p2ps_prov->conncap = p2ps_group_capability(
6171 31 : wpa_s, P2PS_SETUP_NONE, p2ps_prov->role);
6172 93 : wpa_printf(MSG_DEBUG,
6173 : "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6174 31 : __func__, p2ps_prov->conncap,
6175 31 : p2ps_prov->adv_id, p2ps_prov->conncap,
6176 31 : p2ps_prov->status, p2ps_prov->info);
6177 :
6178 31 : config_methods = 0;
6179 21 : } else if (os_strncmp(config_method, "display", 7) == 0)
6180 14 : config_methods = WPS_CONFIG_DISPLAY;
6181 7 : else if (os_strncmp(config_method, "keypad", 6) == 0)
6182 2 : config_methods = WPS_CONFIG_KEYPAD;
6183 7 : else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6184 2 : os_strncmp(config_method, "pushbutton", 10) == 0)
6185 4 : config_methods = WPS_CONFIG_PUSHBUTTON;
6186 : else {
6187 1 : wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6188 1 : os_free(p2ps_prov);
6189 1 : return -1;
6190 : }
6191 :
6192 51 : if (use == WPAS_P2P_PD_AUTO) {
6193 2 : os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6194 2 : wpa_s->pending_pd_config_methods = config_methods;
6195 2 : wpa_s->p2p_auto_pd = 1;
6196 2 : wpa_s->p2p_auto_join = 0;
6197 2 : wpa_s->pending_pd_before_join = 0;
6198 2 : wpa_s->auto_pd_scan_retry = 0;
6199 2 : wpas_p2p_stop_find(wpa_s);
6200 2 : wpa_s->p2p_join_scan_count = 0;
6201 2 : os_get_reltime(&wpa_s->p2p_auto_started);
6202 2 : wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6203 : wpa_s->p2p_auto_started.sec,
6204 : wpa_s->p2p_auto_started.usec);
6205 2 : wpas_p2p_join_scan(wpa_s, NULL);
6206 2 : return 0;
6207 : }
6208 :
6209 49 : if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6210 0 : os_free(p2ps_prov);
6211 0 : return -1;
6212 : }
6213 :
6214 49 : return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
6215 : config_methods, use == WPAS_P2P_PD_FOR_JOIN,
6216 : 0, 1);
6217 : }
6218 :
6219 :
6220 2205 : int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6221 : char *end)
6222 : {
6223 2205 : return p2p_scan_result_text(ies, ies_len, buf, end);
6224 : }
6225 :
6226 :
6227 15988 : static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6228 : {
6229 15988 : if (!offchannel_pending_action_tx(wpa_s))
6230 31972 : return;
6231 :
6232 4 : wpas_p2p_action_tx_clear(wpa_s);
6233 :
6234 4 : wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6235 : "operation request");
6236 4 : offchannel_clear_pending_action_tx(wpa_s);
6237 : }
6238 :
6239 :
6240 398 : int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
6241 : enum p2p_discovery_type type,
6242 : unsigned int num_req_dev_types, const u8 *req_dev_types,
6243 : const u8 *dev_id, unsigned int search_delay,
6244 : u8 seek_cnt, const char **seek_string, int freq)
6245 : {
6246 398 : wpas_p2p_clear_pending_action_tx(wpa_s);
6247 398 : wpa_s->p2p_long_listen = 0;
6248 :
6249 796 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
6250 398 : wpa_s->p2p_in_provisioning)
6251 0 : return -1;
6252 :
6253 398 : wpa_supplicant_cancel_sched_scan(wpa_s);
6254 :
6255 398 : return p2p_find(wpa_s->global->p2p, timeout, type,
6256 : num_req_dev_types, req_dev_types, dev_id,
6257 : search_delay, seek_cnt, seek_string, freq);
6258 : }
6259 :
6260 :
6261 18 : static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6262 : struct wpa_scan_results *scan_res)
6263 : {
6264 18 : wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6265 :
6266 18 : if (wpa_s->p2p_scan_work) {
6267 13 : struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6268 13 : wpa_s->p2p_scan_work = NULL;
6269 13 : radio_work_done(work);
6270 : }
6271 :
6272 18 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6273 18 : return;
6274 :
6275 : /*
6276 : * Indicate that results have been processed so that the P2P module can
6277 : * continue pending tasks.
6278 : */
6279 18 : p2p_scan_res_handled(wpa_s->global->p2p);
6280 : }
6281 :
6282 :
6283 15181 : static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
6284 : {
6285 15181 : wpas_p2p_clear_pending_action_tx(wpa_s);
6286 15181 : wpa_s->p2p_long_listen = 0;
6287 15181 : eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6288 15181 : eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
6289 :
6290 15181 : if (wpa_s->global->p2p)
6291 15181 : p2p_stop_find(wpa_s->global->p2p);
6292 :
6293 15181 : if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6294 18 : wpa_printf(MSG_DEBUG,
6295 : "P2P: Do not consider the scan results after stop_find");
6296 18 : wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6297 : }
6298 15181 : }
6299 :
6300 :
6301 14901 : void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6302 : {
6303 14901 : wpas_p2p_stop_find_oper(wpa_s);
6304 14901 : if (!wpa_s->global->pending_group_iface_for_p2ps)
6305 14900 : wpas_p2p_remove_pending_group_interface(wpa_s);
6306 14901 : }
6307 :
6308 :
6309 0 : static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6310 : {
6311 0 : struct wpa_supplicant *wpa_s = eloop_ctx;
6312 0 : wpa_s->p2p_long_listen = 0;
6313 0 : }
6314 :
6315 :
6316 410 : int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6317 : {
6318 : int res;
6319 :
6320 410 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6321 1 : return -1;
6322 :
6323 409 : wpa_supplicant_cancel_sched_scan(wpa_s);
6324 409 : wpas_p2p_clear_pending_action_tx(wpa_s);
6325 :
6326 409 : if (timeout == 0) {
6327 : /*
6328 : * This is a request for unlimited Listen state. However, at
6329 : * least for now, this is mapped to a Listen state for one
6330 : * hour.
6331 : */
6332 398 : timeout = 3600;
6333 : }
6334 409 : eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6335 409 : wpa_s->p2p_long_listen = 0;
6336 :
6337 : /*
6338 : * Stop previous find/listen operation to avoid trying to request a new
6339 : * remain-on-channel operation while the driver is still running the
6340 : * previous one.
6341 : */
6342 409 : if (wpa_s->global->p2p)
6343 409 : p2p_stop_find(wpa_s->global->p2p);
6344 :
6345 409 : res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6346 409 : if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
6347 407 : wpa_s->p2p_long_listen = timeout * 1000;
6348 407 : eloop_register_timeout(timeout, 0,
6349 : wpas_p2p_long_listen_timeout,
6350 : wpa_s, NULL);
6351 : }
6352 :
6353 409 : return res;
6354 : }
6355 :
6356 :
6357 3399 : int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
6358 : u8 *buf, size_t len, int p2p_group)
6359 : {
6360 : struct wpabuf *p2p_ie;
6361 : int ret;
6362 :
6363 3399 : if (wpa_s->global->p2p_disabled)
6364 6 : return -1;
6365 : /*
6366 : * Advertize mandatory cross connection capability even on
6367 : * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6368 : */
6369 3393 : if (wpa_s->conf->p2p_disabled && p2p_group)
6370 0 : return -1;
6371 3393 : if (wpa_s->global->p2p == NULL)
6372 0 : return -1;
6373 3393 : if (bss == NULL)
6374 27 : return -1;
6375 :
6376 3366 : p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6377 3366 : ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6378 : p2p_group, p2p_ie);
6379 3366 : wpabuf_free(p2p_ie);
6380 :
6381 3366 : return ret;
6382 : }
6383 :
6384 :
6385 1247 : int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
6386 : const u8 *dst, const u8 *bssid,
6387 : const u8 *ie, size_t ie_len,
6388 : unsigned int rx_freq, int ssi_signal)
6389 : {
6390 1247 : if (wpa_s->global->p2p_disabled)
6391 0 : return 0;
6392 1247 : if (wpa_s->global->p2p == NULL)
6393 0 : return 0;
6394 :
6395 1247 : switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
6396 : ie, ie_len, rx_freq)) {
6397 : case P2P_PREQ_NOT_P2P:
6398 21 : wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6399 : ssi_signal);
6400 : /* fall through */
6401 : case P2P_PREQ_MALFORMED:
6402 : case P2P_PREQ_NOT_LISTEN:
6403 : case P2P_PREQ_NOT_PROCESSED:
6404 : default: /* make gcc happy */
6405 504 : return 0;
6406 : case P2P_PREQ_PROCESSED:
6407 743 : return 1;
6408 : }
6409 : }
6410 :
6411 :
6412 1128 : void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6413 : const u8 *sa, const u8 *bssid,
6414 : u8 category, const u8 *data, size_t len, int freq)
6415 : {
6416 1128 : if (wpa_s->global->p2p_disabled)
6417 0 : return;
6418 1128 : if (wpa_s->global->p2p == NULL)
6419 0 : return;
6420 :
6421 1128 : p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6422 : freq);
6423 : }
6424 :
6425 :
6426 3686 : void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6427 : {
6428 3686 : if (wpa_s->global->p2p_disabled)
6429 2 : return;
6430 3684 : if (wpa_s->global->p2p == NULL)
6431 0 : return;
6432 :
6433 3684 : p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
6434 : }
6435 :
6436 :
6437 338 : static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
6438 : {
6439 338 : p2p_group_deinit(wpa_s->p2p_group);
6440 338 : wpa_s->p2p_group = NULL;
6441 :
6442 338 : wpa_s->ap_configured_cb = NULL;
6443 338 : wpa_s->ap_configured_cb_ctx = NULL;
6444 338 : wpa_s->ap_configured_cb_data = NULL;
6445 338 : wpa_s->connect_without_scan = NULL;
6446 338 : }
6447 :
6448 :
6449 5 : int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6450 : {
6451 5 : wpa_s->p2p_long_listen = 0;
6452 :
6453 5 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6454 0 : return -1;
6455 :
6456 5 : return p2p_reject(wpa_s->global->p2p, addr);
6457 : }
6458 :
6459 :
6460 : /* Invite to reinvoke a persistent group */
6461 37 : int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6462 : struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
6463 : int ht40, int vht, int pref_freq)
6464 : {
6465 : enum p2p_invite_role role;
6466 37 : u8 *bssid = NULL;
6467 37 : int force_freq = 0;
6468 : int res;
6469 37 : int no_pref_freq_given = pref_freq == 0;
6470 : unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6471 :
6472 37 : wpa_s->global->p2p_invite_group = NULL;
6473 37 : if (peer_addr)
6474 37 : os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6475 : else
6476 0 : os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6477 :
6478 37 : wpa_s->p2p_persistent_go_freq = freq;
6479 37 : wpa_s->p2p_go_ht40 = !!ht40;
6480 37 : if (ssid->mode == WPAS_MODE_P2P_GO) {
6481 22 : role = P2P_INVITE_ROLE_GO;
6482 22 : if (peer_addr == NULL) {
6483 0 : wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6484 : "address in invitation command");
6485 0 : return -1;
6486 : }
6487 22 : if (wpas_p2p_create_iface(wpa_s)) {
6488 1 : if (wpas_p2p_add_group_interface(wpa_s,
6489 : WPA_IF_P2P_GO) < 0) {
6490 0 : wpa_printf(MSG_ERROR, "P2P: Failed to "
6491 : "allocate a new interface for the "
6492 : "group");
6493 0 : return -1;
6494 : }
6495 1 : bssid = wpa_s->pending_interface_addr;
6496 : } else
6497 21 : bssid = wpa_s->own_addr;
6498 : } else {
6499 15 : role = P2P_INVITE_ROLE_CLIENT;
6500 15 : peer_addr = ssid->bssid;
6501 : }
6502 37 : wpa_s->pending_invite_ssid_id = ssid->id;
6503 :
6504 37 : size = P2P_MAX_PREF_CHANNELS;
6505 37 : res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6506 : role == P2P_INVITE_ROLE_GO,
6507 : pref_freq_list, &size);
6508 37 : if (res)
6509 0 : return res;
6510 37 : p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
6511 :
6512 37 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6513 0 : return -1;
6514 :
6515 37 : if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6516 0 : no_pref_freq_given && pref_freq > 0 &&
6517 0 : wpa_s->num_multichan_concurrent > 1 &&
6518 0 : wpas_p2p_num_unused_channels(wpa_s) > 0) {
6519 0 : wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6520 : pref_freq);
6521 0 : pref_freq = 0;
6522 : }
6523 :
6524 : /*
6525 : * Stop any find/listen operations before invitation and possibly
6526 : * connection establishment.
6527 : */
6528 37 : wpas_p2p_stop_find_oper(wpa_s);
6529 :
6530 74 : return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6531 37 : ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
6532 : 1, pref_freq, -1);
6533 : }
6534 :
6535 :
6536 : /* Invite to join an active group */
6537 9 : int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6538 : const u8 *peer_addr, const u8 *go_dev_addr)
6539 : {
6540 9 : struct wpa_global *global = wpa_s->global;
6541 : enum p2p_invite_role role;
6542 9 : u8 *bssid = NULL;
6543 : struct wpa_ssid *ssid;
6544 : int persistent;
6545 9 : int freq = 0, force_freq = 0, pref_freq = 0;
6546 : int res;
6547 : unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6548 :
6549 9 : wpa_s->p2p_persistent_go_freq = 0;
6550 9 : wpa_s->p2p_go_ht40 = 0;
6551 9 : wpa_s->p2p_go_vht = 0;
6552 :
6553 9 : for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6554 9 : if (os_strcmp(wpa_s->ifname, ifname) == 0)
6555 9 : break;
6556 : }
6557 9 : if (wpa_s == NULL) {
6558 0 : wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6559 0 : return -1;
6560 : }
6561 :
6562 9 : ssid = wpa_s->current_ssid;
6563 9 : if (ssid == NULL) {
6564 0 : wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6565 : "invitation");
6566 0 : return -1;
6567 : }
6568 :
6569 9 : wpa_s->global->p2p_invite_group = wpa_s;
6570 11 : persistent = ssid->p2p_persistent_group &&
6571 4 : wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6572 2 : ssid->ssid, ssid->ssid_len);
6573 :
6574 9 : if (ssid->mode == WPAS_MODE_P2P_GO) {
6575 6 : role = P2P_INVITE_ROLE_ACTIVE_GO;
6576 6 : bssid = wpa_s->own_addr;
6577 6 : if (go_dev_addr == NULL)
6578 6 : go_dev_addr = wpa_s->global->p2p_dev_addr;
6579 6 : freq = ssid->frequency;
6580 : } else {
6581 3 : role = P2P_INVITE_ROLE_CLIENT;
6582 3 : if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6583 0 : wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6584 : "invite to current group");
6585 0 : return -1;
6586 : }
6587 3 : bssid = wpa_s->bssid;
6588 6 : if (go_dev_addr == NULL &&
6589 3 : !is_zero_ether_addr(wpa_s->go_dev_addr))
6590 3 : go_dev_addr = wpa_s->go_dev_addr;
6591 3 : freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6592 0 : (int) wpa_s->assoc_freq;
6593 : }
6594 9 : wpa_s->parent->pending_invite_ssid_id = -1;
6595 :
6596 9 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6597 0 : return -1;
6598 :
6599 9 : size = P2P_MAX_PREF_CHANNELS;
6600 9 : res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6601 : role == P2P_INVITE_ROLE_ACTIVE_GO,
6602 : pref_freq_list, &size);
6603 9 : if (res)
6604 0 : return res;
6605 9 : wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
6606 :
6607 18 : return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
6608 9 : ssid->ssid, ssid->ssid_len, force_freq,
6609 : go_dev_addr, persistent, pref_freq, -1);
6610 : }
6611 :
6612 :
6613 2683 : void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6614 : {
6615 2683 : struct wpa_ssid *ssid = wpa_s->current_ssid;
6616 : u8 go_dev_addr[ETH_ALEN];
6617 2683 : int network_id = -1;
6618 : int persistent;
6619 : int freq;
6620 : u8 ip[3 * 4];
6621 : char ip_addr[100];
6622 :
6623 2683 : if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6624 2572 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6625 2572 : wpa_s->parent, NULL);
6626 : }
6627 :
6628 2683 : if (!wpa_s->show_group_started || !ssid)
6629 5164 : return;
6630 :
6631 202 : wpa_s->show_group_started = 0;
6632 :
6633 202 : os_memset(go_dev_addr, 0, ETH_ALEN);
6634 202 : if (ssid->bssid_set)
6635 168 : os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6636 202 : persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6637 : ssid->ssid_len);
6638 202 : os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6639 :
6640 202 : if (wpa_s->global->p2p_group_formation == wpa_s)
6641 0 : wpa_s->global->p2p_group_formation = NULL;
6642 :
6643 202 : freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6644 0 : (int) wpa_s->assoc_freq;
6645 :
6646 202 : ip_addr[0] = '\0';
6647 202 : if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6648 : int res;
6649 :
6650 1140 : res = os_snprintf(ip_addr, sizeof(ip_addr),
6651 : " ip_addr=%u.%u.%u.%u "
6652 : "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6653 380 : ip[0], ip[1], ip[2], ip[3],
6654 380 : ip[4], ip[5], ip[6], ip[7],
6655 380 : ip[8], ip[9], ip[10], ip[11]);
6656 95 : if (os_snprintf_error(sizeof(ip_addr), res))
6657 0 : ip_addr[0] = '\0';
6658 : }
6659 :
6660 404 : wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6661 404 : ssid->passphrase == NULL && ssid->psk_set ?
6662 : ssid->psk : NULL,
6663 202 : ssid->passphrase, go_dev_addr, persistent,
6664 : ip_addr);
6665 :
6666 202 : if (persistent)
6667 78 : network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6668 : ssid, go_dev_addr);
6669 202 : if (network_id < 0)
6670 124 : network_id = ssid->id;
6671 202 : wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
6672 : }
6673 :
6674 :
6675 6 : int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6676 : u32 interval1, u32 duration2, u32 interval2)
6677 : {
6678 : int ret;
6679 :
6680 6 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6681 1 : return -1;
6682 :
6683 10 : if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6684 10 : wpa_s->current_ssid == NULL ||
6685 5 : wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6686 0 : return -1;
6687 :
6688 10 : ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6689 5 : wpa_s->own_addr, wpa_s->assoc_freq,
6690 : duration1, interval1, duration2, interval2);
6691 5 : if (ret == 0)
6692 5 : wpa_s->waiting_presence_resp = 1;
6693 :
6694 5 : return ret;
6695 : }
6696 :
6697 :
6698 10 : int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6699 : unsigned int interval)
6700 : {
6701 10 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6702 1 : return -1;
6703 :
6704 9 : return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6705 : }
6706 :
6707 :
6708 0 : static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6709 : {
6710 0 : if (wpa_s->current_ssid == NULL) {
6711 : /*
6712 : * current_ssid can be cleared when P2P client interface gets
6713 : * disconnected, so assume this interface was used as P2P
6714 : * client.
6715 : */
6716 0 : return 1;
6717 : }
6718 0 : return wpa_s->current_ssid->p2p_group &&
6719 0 : wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6720 : }
6721 :
6722 :
6723 2 : static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6724 : {
6725 2 : struct wpa_supplicant *wpa_s = eloop_ctx;
6726 :
6727 2 : if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
6728 0 : wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6729 : "disabled");
6730 2 : return;
6731 : }
6732 :
6733 2 : wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6734 : "group");
6735 2 : wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
6736 : }
6737 :
6738 :
6739 4334 : static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6740 : {
6741 : int timeout;
6742 :
6743 4334 : if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6744 0 : wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6745 :
6746 4334 : if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6747 3415 : return;
6748 :
6749 919 : timeout = wpa_s->conf->p2p_group_idle;
6750 919 : if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6751 2 : (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6752 390 : timeout = P2P_MAX_CLIENT_IDLE;
6753 :
6754 919 : if (timeout == 0)
6755 524 : return;
6756 :
6757 395 : if (timeout < 0) {
6758 0 : if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6759 0 : timeout = 0; /* special client mode no-timeout */
6760 : else
6761 0 : return;
6762 : }
6763 :
6764 395 : if (wpa_s->p2p_in_provisioning) {
6765 : /*
6766 : * Use the normal group formation timeout during the
6767 : * provisioning phase to avoid terminating this process too
6768 : * early due to group idle timeout.
6769 : */
6770 8 : wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6771 : "during provisioning");
6772 8 : return;
6773 : }
6774 :
6775 387 : if (wpa_s->show_group_started) {
6776 : /*
6777 : * Use the normal group formation timeout between the end of
6778 : * the provisioning phase and completion of 4-way handshake to
6779 : * avoid terminating this process too early due to group idle
6780 : * timeout.
6781 : */
6782 178 : wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6783 : "while waiting for initial 4-way handshake to "
6784 : "complete");
6785 178 : return;
6786 : }
6787 :
6788 209 : wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
6789 : timeout);
6790 209 : eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6791 : wpa_s, NULL);
6792 : }
6793 :
6794 :
6795 : /* Returns 1 if the interface was removed */
6796 3442 : int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6797 : u16 reason_code, const u8 *ie, size_t ie_len,
6798 : int locally_generated)
6799 : {
6800 3442 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6801 16 : return 0;
6802 :
6803 3426 : if (!locally_generated)
6804 405 : p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6805 : ie_len);
6806 :
6807 3589 : if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6808 284 : wpa_s->current_ssid &&
6809 227 : wpa_s->current_ssid->p2p_group &&
6810 106 : wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6811 106 : wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6812 : "session is ending");
6813 106 : if (wpas_p2p_group_delete(wpa_s,
6814 : P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6815 : > 0)
6816 12 : return 1;
6817 : }
6818 :
6819 3414 : return 0;
6820 : }
6821 :
6822 :
6823 5 : void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6824 : u16 reason_code, const u8 *ie, size_t ie_len,
6825 : int locally_generated)
6826 : {
6827 5 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6828 5 : return;
6829 :
6830 5 : if (!locally_generated)
6831 4 : p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6832 : ie_len);
6833 : }
6834 :
6835 :
6836 29811 : void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6837 : {
6838 29811 : struct p2p_data *p2p = wpa_s->global->p2p;
6839 :
6840 29811 : if (p2p == NULL)
6841 0 : return;
6842 :
6843 29811 : if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6844 0 : return;
6845 :
6846 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6847 29 : p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6848 :
6849 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6850 3 : p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
6851 :
6852 59622 : if (wpa_s->wps &&
6853 29811 : (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6854 10 : p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6855 :
6856 29811 : if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6857 3 : p2p_set_uuid(p2p, wpa_s->wps->uuid);
6858 :
6859 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6860 2 : p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6861 2 : p2p_set_model_name(p2p, wpa_s->conf->model_name);
6862 2 : p2p_set_model_number(p2p, wpa_s->conf->model_number);
6863 2 : p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6864 : }
6865 :
6866 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6867 22 : p2p_set_sec_dev_types(p2p,
6868 11 : (void *) wpa_s->conf->sec_device_type,
6869 11 : wpa_s->conf->num_sec_device_types);
6870 :
6871 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6872 : int i;
6873 4 : p2p_remove_wps_vendor_extensions(p2p);
6874 44 : for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6875 40 : if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6876 39 : continue;
6877 1 : p2p_add_wps_vendor_extension(
6878 1 : p2p, wpa_s->conf->wps_vendor_ext[i]);
6879 : }
6880 : }
6881 :
6882 29817 : if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6883 11 : wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6884 : char country[3];
6885 5 : country[0] = wpa_s->conf->country[0];
6886 5 : country[1] = wpa_s->conf->country[1];
6887 5 : country[2] = 0x04;
6888 5 : p2p_set_country(p2p, country);
6889 : }
6890 :
6891 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6892 5 : p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6893 3 : wpa_s->conf->p2p_ssid_postfix ?
6894 2 : os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6895 : 0);
6896 : }
6897 :
6898 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6899 2 : p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
6900 :
6901 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6902 : u8 reg_class, channel;
6903 : int ret;
6904 : unsigned int r;
6905 : u8 channel_forced;
6906 :
6907 18 : if (wpa_s->conf->p2p_listen_reg_class &&
6908 8 : wpa_s->conf->p2p_listen_channel) {
6909 5 : reg_class = wpa_s->conf->p2p_listen_reg_class;
6910 5 : channel = wpa_s->conf->p2p_listen_channel;
6911 5 : channel_forced = 1;
6912 : } else {
6913 5 : reg_class = 81;
6914 : /*
6915 : * Pick one of the social channels randomly as the
6916 : * listen channel.
6917 : */
6918 5 : if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6919 0 : channel = 1;
6920 : else
6921 5 : channel = 1 + (r % 3) * 5;
6922 5 : channel_forced = 0;
6923 : }
6924 10 : ret = p2p_set_listen_channel(p2p, reg_class, channel,
6925 : channel_forced);
6926 10 : if (ret)
6927 0 : wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6928 : "failed: %d", ret);
6929 : }
6930 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6931 : u8 op_reg_class, op_channel, cfg_op_channel;
6932 8 : int ret = 0;
6933 : unsigned int r;
6934 10 : if (wpa_s->conf->p2p_oper_reg_class &&
6935 2 : wpa_s->conf->p2p_oper_channel) {
6936 2 : op_reg_class = wpa_s->conf->p2p_oper_reg_class;
6937 2 : op_channel = wpa_s->conf->p2p_oper_channel;
6938 2 : cfg_op_channel = 1;
6939 : } else {
6940 6 : op_reg_class = 81;
6941 : /*
6942 : * Use random operation channel from (1, 6, 11)
6943 : *if no other preference is indicated.
6944 : */
6945 6 : if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6946 0 : op_channel = 1;
6947 : else
6948 6 : op_channel = 1 + (r % 3) * 5;
6949 6 : cfg_op_channel = 0;
6950 : }
6951 8 : ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
6952 : cfg_op_channel);
6953 8 : if (ret)
6954 1 : wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
6955 : "failed: %d", ret);
6956 : }
6957 :
6958 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
6959 9724 : if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
6960 9724 : wpa_s->conf->p2p_pref_chan) < 0) {
6961 0 : wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
6962 : "update failed");
6963 : }
6964 :
6965 9724 : if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
6966 0 : wpa_printf(MSG_ERROR, "P2P: No GO channel list "
6967 : "update failed");
6968 : }
6969 : }
6970 :
6971 29811 : if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
6972 3 : p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
6973 : }
6974 :
6975 :
6976 2 : int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
6977 : int duration)
6978 : {
6979 2 : if (!wpa_s->ap_iface)
6980 2 : return -1;
6981 0 : return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
6982 : duration);
6983 : }
6984 :
6985 :
6986 6 : int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
6987 : {
6988 6 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6989 0 : return -1;
6990 :
6991 6 : wpa_s->global->cross_connection = enabled;
6992 6 : p2p_set_cross_connect(wpa_s->global->p2p, enabled);
6993 :
6994 6 : if (!enabled) {
6995 : struct wpa_supplicant *iface;
6996 :
6997 9 : for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
6998 : {
6999 5 : if (iface->cross_connect_enabled == 0)
7000 4 : continue;
7001 :
7002 1 : iface->cross_connect_enabled = 0;
7003 1 : iface->cross_connect_in_use = 0;
7004 1 : wpa_msg_global(iface->parent, MSG_INFO,
7005 : P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7006 1 : iface->ifname,
7007 1 : iface->cross_connect_uplink);
7008 : }
7009 : }
7010 :
7011 6 : return 0;
7012 : }
7013 :
7014 :
7015 2419 : static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7016 : {
7017 : struct wpa_supplicant *iface;
7018 :
7019 2419 : if (!uplink->global->cross_connection)
7020 4837 : return;
7021 :
7022 2 : for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7023 1 : if (!iface->cross_connect_enabled)
7024 1 : continue;
7025 0 : if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7026 : 0)
7027 0 : continue;
7028 0 : if (iface->ap_iface == NULL)
7029 0 : continue;
7030 0 : if (iface->cross_connect_in_use)
7031 0 : continue;
7032 :
7033 0 : iface->cross_connect_in_use = 1;
7034 0 : wpa_msg_global(iface->parent, MSG_INFO,
7035 : P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7036 0 : iface->ifname, iface->cross_connect_uplink);
7037 : }
7038 : }
7039 :
7040 :
7041 4243 : static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7042 : {
7043 : struct wpa_supplicant *iface;
7044 :
7045 12828 : for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7046 8585 : if (!iface->cross_connect_enabled)
7047 8585 : continue;
7048 0 : if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7049 : 0)
7050 0 : continue;
7051 0 : if (!iface->cross_connect_in_use)
7052 0 : continue;
7053 :
7054 0 : wpa_msg_global(iface->parent, MSG_INFO,
7055 : P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7056 0 : iface->ifname, iface->cross_connect_uplink);
7057 0 : iface->cross_connect_in_use = 0;
7058 : }
7059 4243 : }
7060 :
7061 :
7062 2782 : void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7063 : {
7064 5228 : if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7065 4866 : wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7066 2420 : wpa_s->cross_connect_disallowed)
7067 363 : wpas_p2p_disable_cross_connect(wpa_s);
7068 : else
7069 2419 : wpas_p2p_enable_cross_connect(wpa_s);
7070 5228 : if (!wpa_s->ap_iface &&
7071 2446 : eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7072 2 : wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
7073 2782 : }
7074 :
7075 :
7076 3880 : void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7077 : {
7078 3880 : wpas_p2p_disable_cross_connect(wpa_s);
7079 7328 : if (!wpa_s->ap_iface &&
7080 3448 : !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7081 : wpa_s, NULL))
7082 3448 : wpas_p2p_set_group_idle_timeout(wpa_s);
7083 3880 : }
7084 :
7085 :
7086 314 : static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7087 : {
7088 : struct wpa_supplicant *iface;
7089 :
7090 314 : if (!wpa_s->global->cross_connection)
7091 626 : return;
7092 :
7093 4 : for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7094 4 : if (iface == wpa_s)
7095 2 : continue;
7096 2 : if (iface->drv_flags &
7097 : WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7098 0 : continue;
7099 4 : if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7100 2 : iface != wpa_s->parent)
7101 0 : continue;
7102 :
7103 2 : wpa_s->cross_connect_enabled = 1;
7104 2 : os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7105 : sizeof(wpa_s->cross_connect_uplink));
7106 2 : wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7107 : "%s to %s whenever uplink is available",
7108 2 : wpa_s->ifname, wpa_s->cross_connect_uplink);
7109 :
7110 4 : if (iface->ap_iface || iface->current_ssid == NULL ||
7111 4 : iface->current_ssid->mode != WPAS_MODE_INFRA ||
7112 4 : iface->cross_connect_disallowed ||
7113 2 : iface->wpa_state != WPA_COMPLETED)
7114 : break;
7115 :
7116 2 : wpa_s->cross_connect_in_use = 1;
7117 2 : wpa_msg_global(wpa_s->parent, MSG_INFO,
7118 : P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7119 2 : wpa_s->ifname, wpa_s->cross_connect_uplink);
7120 2 : break;
7121 : }
7122 : }
7123 :
7124 :
7125 7 : int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7126 : {
7127 13 : if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7128 6 : !wpa_s->p2p_in_provisioning)
7129 4 : return 0; /* not P2P client operation */
7130 :
7131 3 : wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7132 : "session overlap");
7133 3 : if (wpa_s != wpa_s->parent)
7134 1 : wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
7135 3 : wpas_p2p_group_formation_failed(wpa_s, 0);
7136 3 : return 1;
7137 : }
7138 :
7139 :
7140 7 : void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7141 : {
7142 7 : struct wpa_supplicant *wpa_s = eloop_ctx;
7143 7 : wpas_p2p_notif_pbc_overlap(wpa_s);
7144 7 : }
7145 :
7146 :
7147 34416 : void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7148 : enum wpas_p2p_channel_update_trig trig)
7149 : {
7150 : struct p2p_channels chan, cli_chan;
7151 34416 : struct wpa_used_freq_data *freqs = NULL;
7152 34416 : unsigned int num = wpa_s->num_multichan_concurrent;
7153 :
7154 34416 : if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7155 478 : return;
7156 :
7157 34179 : freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7158 34179 : if (!freqs)
7159 4 : return;
7160 :
7161 34175 : num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7162 :
7163 34175 : os_memset(&chan, 0, sizeof(chan));
7164 34175 : os_memset(&cli_chan, 0, sizeof(cli_chan));
7165 34175 : if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
7166 0 : wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7167 : "channel list");
7168 0 : return;
7169 : }
7170 :
7171 34175 : p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7172 :
7173 34175 : wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7174 :
7175 : /*
7176 : * The used frequencies map changed, so it is possible that a GO is
7177 : * using a channel that is no longer valid for P2P use. It is also
7178 : * possible that due to policy consideration, it would be preferable to
7179 : * move it to a frequency already used by other station interfaces.
7180 : */
7181 34175 : wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
7182 :
7183 34175 : os_free(freqs);
7184 : }
7185 :
7186 :
7187 0 : static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7188 : struct wpa_scan_results *scan_res)
7189 : {
7190 0 : wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7191 0 : }
7192 :
7193 :
7194 4875 : int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7195 : {
7196 4875 : struct wpa_global *global = wpa_s->global;
7197 4875 : int found = 0;
7198 : const u8 *peer;
7199 :
7200 4875 : if (global->p2p == NULL)
7201 0 : return -1;
7202 :
7203 4875 : wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7204 :
7205 4877 : if (wpa_s->pending_interface_name[0] &&
7206 2 : !is_zero_ether_addr(wpa_s->pending_interface_addr))
7207 2 : found = 1;
7208 :
7209 4875 : peer = p2p_get_go_neg_peer(global->p2p);
7210 4875 : if (peer) {
7211 42 : wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7212 42 : MACSTR, MAC2STR(peer));
7213 7 : p2p_unauthorize(global->p2p, peer);
7214 7 : found = 1;
7215 : }
7216 :
7217 4875 : if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7218 0 : wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7219 0 : wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7220 0 : found = 1;
7221 : }
7222 :
7223 4875 : if (wpa_s->pending_pd_before_join) {
7224 1 : wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7225 1 : wpa_s->pending_pd_before_join = 0;
7226 1 : found = 1;
7227 : }
7228 :
7229 4875 : wpas_p2p_stop_find(wpa_s);
7230 :
7231 9748 : for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7232 4883 : if (wpa_s == global->p2p_group_formation &&
7233 8 : (wpa_s->p2p_in_provisioning ||
7234 2 : wpa_s->parent->pending_interface_type ==
7235 : WPA_IF_P2P_CLIENT)) {
7236 4 : wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7237 : "formation found - cancelling",
7238 4 : wpa_s->ifname);
7239 4 : found = 1;
7240 4 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7241 4 : wpa_s->parent, NULL);
7242 4 : if (wpa_s->p2p_in_provisioning) {
7243 4 : wpas_group_formation_completed(wpa_s, 0, 0);
7244 4 : break;
7245 : }
7246 0 : wpas_p2p_group_delete(wpa_s,
7247 : P2P_GROUP_REMOVAL_REQUESTED);
7248 0 : break;
7249 4873 : } else if (wpa_s->p2p_in_invitation) {
7250 4 : wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7251 4 : wpa_s->ifname);
7252 4 : found = 1;
7253 4 : wpas_p2p_group_formation_failed(wpa_s, 0);
7254 : }
7255 : }
7256 :
7257 4875 : if (!found) {
7258 4860 : wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7259 4860 : return -1;
7260 : }
7261 :
7262 15 : return 0;
7263 : }
7264 :
7265 :
7266 5 : void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7267 : {
7268 5 : if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7269 5 : return;
7270 :
7271 5 : wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7272 : "being available anymore");
7273 5 : wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
7274 : }
7275 :
7276 :
7277 0 : void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7278 : int freq_24, int freq_5, int freq_overall)
7279 : {
7280 0 : struct p2p_data *p2p = wpa_s->global->p2p;
7281 0 : if (p2p == NULL)
7282 0 : return;
7283 0 : p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7284 : }
7285 :
7286 :
7287 3 : int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7288 : {
7289 : u8 peer[ETH_ALEN];
7290 3 : struct p2p_data *p2p = wpa_s->global->p2p;
7291 :
7292 3 : if (p2p == NULL)
7293 0 : return -1;
7294 :
7295 3 : if (hwaddr_aton(addr, peer))
7296 1 : return -1;
7297 :
7298 2 : return p2p_unauthorize(p2p, peer);
7299 : }
7300 :
7301 :
7302 : /**
7303 : * wpas_p2p_disconnect - Disconnect from a P2P Group
7304 : * @wpa_s: Pointer to wpa_supplicant data
7305 : * Returns: 0 on success, -1 on failure
7306 : *
7307 : * This can be used to disconnect from a group in which the local end is a P2P
7308 : * Client or to end a P2P Group in case the local end is the Group Owner. If a
7309 : * virtual network interface was created for this group, that interface will be
7310 : * removed. Otherwise, only the configured P2P group network will be removed
7311 : * from the interface.
7312 : */
7313 416 : int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7314 : {
7315 :
7316 416 : if (wpa_s == NULL)
7317 3 : return -1;
7318 :
7319 826 : return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7320 413 : -1 : 0;
7321 : }
7322 :
7323 :
7324 12081 : int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7325 : {
7326 : int ret;
7327 :
7328 12081 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7329 19 : return 0;
7330 :
7331 12062 : ret = p2p_in_progress(wpa_s->global->p2p);
7332 12062 : if (ret == 0) {
7333 : /*
7334 : * Check whether there is an ongoing WPS provisioning step (or
7335 : * other parts of group formation) on another interface since
7336 : * p2p_in_progress() does not report this to avoid issues for
7337 : * scans during such provisioning step.
7338 : */
7339 14538 : if (wpa_s->global->p2p_group_formation &&
7340 2481 : wpa_s->global->p2p_group_formation != wpa_s) {
7341 1955 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7342 : "in group formation",
7343 : wpa_s->global->p2p_group_formation->ifname);
7344 1955 : ret = 1;
7345 : }
7346 : }
7347 :
7348 12062 : if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
7349 : struct os_reltime now;
7350 4130 : os_get_reltime(&now);
7351 4130 : if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7352 : P2P_MAX_INITIAL_CONN_WAIT_GO)) {
7353 : /* Wait for the first client has expired */
7354 2 : wpa_s->global->p2p_go_wait_client.sec = 0;
7355 : } else {
7356 4128 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7357 4128 : ret = 1;
7358 : }
7359 : }
7360 :
7361 12062 : return ret;
7362 : }
7363 :
7364 :
7365 3750 : void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7366 : struct wpa_ssid *ssid)
7367 : {
7368 3754 : if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7369 4 : eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7370 4 : wpa_s->parent, NULL) > 0) {
7371 : /**
7372 : * Remove the network by scheduling the group formation
7373 : * timeout to happen immediately. The teardown code
7374 : * needs to be scheduled to run asynch later so that we
7375 : * don't delete data from under ourselves unexpectedly.
7376 : * Calling wpas_p2p_group_formation_timeout directly
7377 : * causes a series of crashes in WPS failure scenarios.
7378 : */
7379 0 : wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7380 : "P2P group network getting removed");
7381 0 : eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7382 0 : wpa_s->parent, NULL);
7383 : }
7384 3750 : }
7385 :
7386 :
7387 908 : struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
7388 : const u8 *addr, const u8 *ssid,
7389 : size_t ssid_len)
7390 : {
7391 : struct wpa_ssid *s;
7392 : size_t i;
7393 :
7394 1041 : for (s = wpa_s->conf->ssid; s; s = s->next) {
7395 284 : if (s->disabled != 2)
7396 116 : continue;
7397 229 : if (ssid &&
7398 122 : (ssid_len != s->ssid_len ||
7399 61 : os_memcmp(ssid, s->ssid, ssid_len) != 0))
7400 0 : continue;
7401 168 : if (addr == NULL) {
7402 55 : if (s->mode == WPAS_MODE_P2P_GO)
7403 55 : return s;
7404 0 : continue;
7405 : }
7406 113 : if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7407 45 : return s; /* peer is GO in the persistent group */
7408 68 : if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7409 8 : continue;
7410 66 : for (i = 0; i < s->num_p2p_clients; i++) {
7411 57 : if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
7412 : addr, ETH_ALEN) == 0)
7413 51 : return s; /* peer is P2P client in persistent
7414 : * group */
7415 : }
7416 : }
7417 :
7418 757 : return NULL;
7419 : }
7420 :
7421 :
7422 231 : void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7423 : const u8 *addr)
7424 : {
7425 231 : if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7426 231 : wpa_s->parent, NULL) > 0) {
7427 : /*
7428 : * This can happen if WPS provisioning step is not terminated
7429 : * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7430 : * peer was able to connect, there is no need to time out group
7431 : * formation after this, though. In addition, this is used with
7432 : * the initial connection wait on the GO as a separate formation
7433 : * timeout and as such, expected to be hit after the initial WPS
7434 : * provisioning step.
7435 : */
7436 125 : wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
7437 :
7438 250 : if (!wpa_s->p2p_go_group_formation_completed &&
7439 125 : !wpa_s->group_formation_reported) {
7440 : /*
7441 : * GO has not yet notified group formation success since
7442 : * the WPS step was not completed cleanly. Do that
7443 : * notification now since the P2P Client was able to
7444 : * connect and as such, must have received the
7445 : * credential from the WPS step.
7446 : */
7447 2 : if (wpa_s->global->p2p)
7448 2 : p2p_wps_success_cb(wpa_s->global->p2p, addr);
7449 2 : wpas_group_formation_completed(wpa_s, 1, 0);
7450 : }
7451 : }
7452 231 : if (!wpa_s->p2p_go_group_formation_completed) {
7453 193 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7454 193 : wpa_s->p2p_go_group_formation_completed = 1;
7455 193 : wpa_s->global->p2p_group_formation = NULL;
7456 193 : wpa_s->p2p_in_provisioning = 0;
7457 193 : wpa_s->p2p_in_invitation = 0;
7458 : }
7459 231 : wpa_s->global->p2p_go_wait_client.sec = 0;
7460 231 : if (addr == NULL)
7461 258 : return;
7462 204 : wpas_p2p_add_persistent_group_client(wpa_s, addr);
7463 : }
7464 :
7465 :
7466 2 : static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7467 : int group_added)
7468 : {
7469 2 : struct wpa_supplicant *group = wpa_s;
7470 2 : int ret = 0;
7471 :
7472 2 : if (wpa_s->global->p2p_group_formation)
7473 1 : group = wpa_s->global->p2p_group_formation;
7474 2 : wpa_s = wpa_s->global->p2p_init_wpa_s;
7475 2 : offchannel_send_action_done(wpa_s);
7476 2 : if (group_added)
7477 1 : ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
7478 2 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7479 10 : wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7480 4 : wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7481 : 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
7482 : wpa_s->p2p_persistent_id,
7483 2 : wpa_s->p2p_pd_before_go_neg,
7484 2 : wpa_s->p2p_go_ht40,
7485 2 : wpa_s->p2p_go_vht);
7486 2 : return ret;
7487 : }
7488 :
7489 :
7490 804 : int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7491 : {
7492 : int res;
7493 :
7494 809 : if (!wpa_s->p2p_fallback_to_go_neg ||
7495 5 : wpa_s->p2p_in_provisioning <= 5)
7496 803 : return 0;
7497 :
7498 1 : if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7499 0 : return 0; /* peer operating as a GO */
7500 :
7501 1 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7502 : "fallback to GO Negotiation");
7503 1 : wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7504 : "reason=GO-not-found");
7505 1 : res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
7506 :
7507 1 : return res == 1 ? 2 : 1;
7508 : }
7509 :
7510 :
7511 387 : unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7512 : {
7513 : struct wpa_supplicant *ifs;
7514 :
7515 387 : if (wpa_s->wpa_state > WPA_SCANNING) {
7516 15 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7517 : "concurrent operation",
7518 : wpa_s->conf->p2p_search_delay);
7519 15 : return wpa_s->conf->p2p_search_delay;
7520 : }
7521 :
7522 749 : dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7523 : radio_list) {
7524 378 : if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
7525 1 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7526 : "delay due to concurrent operation on "
7527 : "interface %s",
7528 : wpa_s->conf->p2p_search_delay,
7529 : ifs->ifname);
7530 1 : return wpa_s->conf->p2p_search_delay;
7531 : }
7532 : }
7533 :
7534 371 : return 0;
7535 : }
7536 :
7537 :
7538 7 : static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7539 : struct wpa_ssid *s, const u8 *addr,
7540 : int iface_addr)
7541 : {
7542 : struct psk_list_entry *psk, *tmp;
7543 7 : int changed = 0;
7544 :
7545 14 : dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7546 : list) {
7547 7 : if ((iface_addr && !psk->p2p &&
7548 7 : os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7549 10 : (!iface_addr && psk->p2p &&
7550 5 : os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7551 3 : wpa_dbg(wpa_s, MSG_DEBUG,
7552 : "P2P: Remove persistent group PSK list entry for "
7553 : MACSTR " p2p=%u",
7554 : MAC2STR(psk->addr), psk->p2p);
7555 3 : dl_list_del(&psk->list);
7556 3 : os_free(psk);
7557 3 : changed++;
7558 : }
7559 : }
7560 :
7561 7 : return changed;
7562 : }
7563 :
7564 :
7565 8 : void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7566 : const u8 *p2p_dev_addr,
7567 : const u8 *psk, size_t psk_len)
7568 : {
7569 8 : struct wpa_ssid *ssid = wpa_s->current_ssid;
7570 : struct wpa_ssid *persistent;
7571 : struct psk_list_entry *p, *last;
7572 :
7573 8 : if (psk_len != sizeof(p->psk))
7574 0 : return;
7575 :
7576 8 : if (p2p_dev_addr) {
7577 8 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7578 : " p2p_dev_addr=" MACSTR,
7579 : MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7580 8 : if (is_zero_ether_addr(p2p_dev_addr))
7581 1 : p2p_dev_addr = NULL;
7582 : } else {
7583 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7584 : MAC2STR(mac_addr));
7585 : }
7586 :
7587 8 : if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7588 4 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7589 : /* To be added to persistent group once created */
7590 4 : if (wpa_s->global->add_psk == NULL) {
7591 4 : wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7592 4 : if (wpa_s->global->add_psk == NULL)
7593 0 : return;
7594 : }
7595 4 : p = wpa_s->global->add_psk;
7596 4 : if (p2p_dev_addr) {
7597 4 : p->p2p = 1;
7598 4 : os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7599 : } else {
7600 0 : p->p2p = 0;
7601 0 : os_memcpy(p->addr, mac_addr, ETH_ALEN);
7602 : }
7603 4 : os_memcpy(p->psk, psk, psk_len);
7604 4 : return;
7605 : }
7606 :
7607 4 : if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7608 2 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7609 2 : return;
7610 : }
7611 :
7612 2 : persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7613 : ssid->ssid_len);
7614 2 : if (!persistent) {
7615 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7616 0 : return;
7617 : }
7618 :
7619 2 : p = os_zalloc(sizeof(*p));
7620 2 : if (p == NULL)
7621 0 : return;
7622 2 : if (p2p_dev_addr) {
7623 2 : p->p2p = 1;
7624 2 : os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7625 : } else {
7626 0 : p->p2p = 0;
7627 0 : os_memcpy(p->addr, mac_addr, ETH_ALEN);
7628 : }
7629 2 : os_memcpy(p->psk, psk, psk_len);
7630 :
7631 2 : if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7632 0 : (last = dl_list_last(&persistent->psk_list,
7633 : struct psk_list_entry, list))) {
7634 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7635 : MACSTR " (p2p=%u) to make room for a new one",
7636 : MAC2STR(last->addr), last->p2p);
7637 0 : dl_list_del(&last->list);
7638 0 : os_free(last);
7639 : }
7640 :
7641 2 : wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7642 : p2p_dev_addr ? p2p_dev_addr : mac_addr,
7643 : p2p_dev_addr == NULL);
7644 2 : if (p2p_dev_addr) {
7645 2 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7646 : MACSTR, MAC2STR(p2p_dev_addr));
7647 : } else {
7648 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7649 : MAC2STR(mac_addr));
7650 : }
7651 2 : dl_list_add(&persistent->psk_list, &p->list);
7652 :
7653 2 : if (wpa_s->parent->conf->update_config &&
7654 0 : wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7655 0 : wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
7656 : }
7657 :
7658 :
7659 5 : static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7660 : struct wpa_ssid *s, const u8 *addr,
7661 : int iface_addr)
7662 : {
7663 : int res;
7664 :
7665 5 : res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
7666 5 : if (res > 0 && wpa_s->conf->update_config &&
7667 0 : wpa_config_write(wpa_s->confname, wpa_s->conf))
7668 0 : wpa_dbg(wpa_s, MSG_DEBUG,
7669 : "P2P: Failed to update configuration");
7670 5 : }
7671 :
7672 :
7673 7 : static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7674 : const u8 *peer, int iface_addr)
7675 : {
7676 : struct hostapd_data *hapd;
7677 : struct hostapd_wpa_psk *psk, *prev, *rem;
7678 : struct sta_info *sta;
7679 :
7680 14 : if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7681 7 : wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7682 7 : return;
7683 :
7684 : /* Remove per-station PSK entry */
7685 7 : hapd = wpa_s->ap_iface->bss[0];
7686 7 : prev = NULL;
7687 7 : psk = hapd->conf->ssid.wpa_psk;
7688 27 : while (psk) {
7689 13 : if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7690 9 : (!iface_addr &&
7691 9 : os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7692 3 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7693 : MACSTR " iface_addr=%d",
7694 : MAC2STR(peer), iface_addr);
7695 3 : if (prev)
7696 1 : prev->next = psk->next;
7697 : else
7698 2 : hapd->conf->ssid.wpa_psk = psk->next;
7699 3 : rem = psk;
7700 3 : psk = psk->next;
7701 3 : os_free(rem);
7702 : } else {
7703 10 : prev = psk;
7704 10 : psk = psk->next;
7705 : }
7706 : }
7707 :
7708 : /* Disconnect from group */
7709 7 : if (iface_addr)
7710 2 : sta = ap_get_sta(hapd, peer);
7711 : else
7712 5 : sta = ap_get_sta_p2p(hapd, peer);
7713 7 : if (sta) {
7714 7 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7715 : " (iface_addr=%d) from group",
7716 : MAC2STR(peer), iface_addr);
7717 7 : hostapd_drv_sta_deauth(hapd, sta->addr,
7718 : WLAN_REASON_DEAUTH_LEAVING);
7719 7 : ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7720 : }
7721 : }
7722 :
7723 :
7724 7 : void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7725 : int iface_addr)
7726 : {
7727 : struct wpa_ssid *s;
7728 : struct wpa_supplicant *w;
7729 7 : struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
7730 :
7731 7 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7732 :
7733 : /* Remove from any persistent group */
7734 19 : for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
7735 12 : if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7736 7 : continue;
7737 5 : if (!iface_addr)
7738 4 : wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
7739 5 : wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
7740 : }
7741 :
7742 : /* Remove from any operating group */
7743 14 : for (w = wpa_s->global->ifaces; w; w = w->next)
7744 7 : wpas_p2p_remove_client_go(w, peer, iface_addr);
7745 7 : }
7746 :
7747 :
7748 1 : static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7749 : {
7750 1 : struct wpa_supplicant *wpa_s = eloop_ctx;
7751 1 : wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7752 1 : }
7753 :
7754 :
7755 0 : static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7756 : {
7757 0 : struct wpa_supplicant *wpa_s = eloop_ctx;
7758 :
7759 0 : wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7760 0 : wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7761 0 : }
7762 :
7763 :
7764 1 : int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7765 : struct wpa_ssid *ssid)
7766 : {
7767 : struct wpa_supplicant *iface;
7768 :
7769 4 : for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7770 2 : if (!iface->current_ssid ||
7771 2 : iface->current_ssid->frequency == freq ||
7772 2 : (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7773 1 : !iface->current_ssid->p2p_group))
7774 1 : continue;
7775 :
7776 : /* Remove the connection with least priority */
7777 0 : if (!wpas_is_p2p_prioritized(iface)) {
7778 : /* STA connection has priority over existing
7779 : * P2P connection, so remove the interface. */
7780 0 : wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7781 0 : eloop_register_timeout(0, 0,
7782 : wpas_p2p_group_freq_conflict,
7783 : iface, NULL);
7784 : /* If connection in progress is P2P connection, do not
7785 : * proceed for the connection. */
7786 0 : if (wpa_s == iface)
7787 0 : return -1;
7788 : else
7789 0 : return 0;
7790 : } else {
7791 : /* P2P connection has priority, disable the STA network
7792 : */
7793 0 : wpa_supplicant_disable_network(wpa_s->global->ifaces,
7794 : ssid);
7795 0 : wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7796 : WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7797 0 : os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7798 : ETH_ALEN);
7799 : /* If P2P connection is in progress, continue
7800 : * connecting...*/
7801 0 : if (wpa_s == iface)
7802 0 : return 0;
7803 : else
7804 0 : return -1;
7805 : }
7806 : }
7807 :
7808 1 : return 0;
7809 : }
7810 :
7811 :
7812 17 : int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7813 : {
7814 17 : struct wpa_ssid *ssid = wpa_s->current_ssid;
7815 :
7816 17 : if (ssid == NULL || !ssid->p2p_group)
7817 12 : return 0;
7818 :
7819 6 : if (wpa_s->p2p_last_4way_hs_fail &&
7820 1 : wpa_s->p2p_last_4way_hs_fail == ssid) {
7821 : u8 go_dev_addr[ETH_ALEN];
7822 : struct wpa_ssid *persistent;
7823 :
7824 2 : if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7825 1 : ssid->ssid,
7826 : ssid->ssid_len) <= 0) {
7827 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7828 0 : goto disconnect;
7829 : }
7830 :
7831 1 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7832 : MACSTR, MAC2STR(go_dev_addr));
7833 2 : persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7834 1 : ssid->ssid,
7835 : ssid->ssid_len);
7836 1 : if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7837 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7838 0 : goto disconnect;
7839 : }
7840 1 : wpa_msg_global(wpa_s->parent, MSG_INFO,
7841 : P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7842 : persistent->id);
7843 : disconnect:
7844 1 : wpa_s->p2p_last_4way_hs_fail = NULL;
7845 : /*
7846 : * Remove the group from a timeout to avoid issues with caller
7847 : * continuing to use the interface if this is on a P2P group
7848 : * interface.
7849 : */
7850 1 : eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7851 : wpa_s, NULL);
7852 1 : return 1;
7853 : }
7854 :
7855 4 : wpa_s->p2p_last_4way_hs_fail = ssid;
7856 4 : return 0;
7857 : }
7858 :
7859 :
7860 : #ifdef CONFIG_WPS_NFC
7861 :
7862 44 : static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7863 : struct wpabuf *p2p)
7864 : {
7865 : struct wpabuf *ret;
7866 : size_t wsc_len;
7867 :
7868 44 : if (p2p == NULL) {
7869 3 : wpabuf_free(wsc);
7870 3 : wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7871 3 : return NULL;
7872 : }
7873 :
7874 41 : wsc_len = wsc ? wpabuf_len(wsc) : 0;
7875 41 : ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
7876 41 : if (ret == NULL) {
7877 2 : wpabuf_free(wsc);
7878 2 : wpabuf_free(p2p);
7879 2 : return NULL;
7880 : }
7881 :
7882 39 : wpabuf_put_be16(ret, wsc_len);
7883 39 : if (wsc)
7884 32 : wpabuf_put_buf(ret, wsc);
7885 39 : wpabuf_put_be16(ret, wpabuf_len(p2p));
7886 39 : wpabuf_put_buf(ret, p2p);
7887 :
7888 39 : wpabuf_free(wsc);
7889 39 : wpabuf_free(p2p);
7890 39 : wpa_hexdump_buf(MSG_DEBUG,
7891 : "P2P: Generated NFC connection handover message", ret);
7892 :
7893 39 : if (ndef && ret) {
7894 : struct wpabuf *tmp;
7895 36 : tmp = ndef_build_p2p(ret);
7896 36 : wpabuf_free(ret);
7897 36 : if (tmp == NULL) {
7898 3 : wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7899 3 : return NULL;
7900 : }
7901 33 : ret = tmp;
7902 : }
7903 :
7904 36 : return ret;
7905 : }
7906 :
7907 :
7908 68 : static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7909 : struct wpa_ssid **ssid, u8 *go_dev_addr)
7910 : {
7911 : struct wpa_supplicant *iface;
7912 :
7913 68 : if (go_dev_addr)
7914 44 : os_memset(go_dev_addr, 0, ETH_ALEN);
7915 68 : if (ssid)
7916 44 : *ssid = NULL;
7917 270 : for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7918 81 : if (iface->wpa_state < WPA_ASSOCIATING ||
7919 36 : iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7920 24 : !iface->current_ssid->p2p_group ||
7921 12 : iface->current_ssid->mode != WPAS_MODE_INFRA)
7922 67 : continue;
7923 2 : if (ssid)
7924 1 : *ssid = iface->current_ssid;
7925 2 : if (go_dev_addr)
7926 1 : os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
7927 2 : return iface->assoc_freq;
7928 : }
7929 66 : return 0;
7930 : }
7931 :
7932 :
7933 15 : struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
7934 : int ndef)
7935 : {
7936 : struct wpabuf *wsc, *p2p;
7937 : struct wpa_ssid *ssid;
7938 : u8 go_dev_addr[ETH_ALEN];
7939 15 : int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7940 :
7941 15 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
7942 0 : wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
7943 0 : return NULL;
7944 : }
7945 :
7946 19 : if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7947 4 : wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7948 4 : &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
7949 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
7950 0 : return NULL;
7951 : }
7952 :
7953 15 : if (cli_freq == 0) {
7954 28 : wsc = wps_build_nfc_handover_req_p2p(
7955 28 : wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
7956 : } else
7957 1 : wsc = NULL;
7958 32 : p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
7959 16 : go_dev_addr, ssid ? ssid->ssid : NULL,
7960 16 : ssid ? ssid->ssid_len : 0);
7961 :
7962 15 : return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7963 : }
7964 :
7965 :
7966 29 : struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
7967 : int ndef, int tag)
7968 : {
7969 : struct wpabuf *wsc, *p2p;
7970 : struct wpa_ssid *ssid;
7971 : u8 go_dev_addr[ETH_ALEN];
7972 29 : int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
7973 :
7974 29 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7975 0 : return NULL;
7976 :
7977 33 : if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7978 4 : wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7979 4 : &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7980 0 : return NULL;
7981 :
7982 29 : if (cli_freq == 0) {
7983 115 : wsc = wps_build_nfc_handover_sel_p2p(
7984 29 : wpa_s->parent->wps,
7985 14 : tag ? wpa_s->conf->wps_nfc_dev_pw_id :
7986 : DEV_PW_NFC_CONNECTION_HANDOVER,
7987 29 : wpa_s->conf->wps_nfc_dh_pubkey,
7988 14 : tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
7989 : } else
7990 0 : wsc = NULL;
7991 58 : p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
7992 29 : go_dev_addr, ssid ? ssid->ssid : NULL,
7993 29 : ssid ? ssid->ssid_len : 0);
7994 :
7995 29 : return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7996 : }
7997 :
7998 :
7999 4 : static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8000 : struct p2p_nfc_params *params)
8001 : {
8002 4 : wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
8003 : "connection handover (freq=%d)",
8004 : params->go_freq);
8005 :
8006 4 : if (params->go_freq && params->go_ssid_len) {
8007 4 : wpa_s->p2p_wps_method = WPS_NFC;
8008 4 : wpa_s->pending_join_wps_method = WPS_NFC;
8009 4 : os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8010 4 : os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8011 : ETH_ALEN);
8012 8 : return wpas_p2p_join_start(wpa_s, params->go_freq,
8013 4 : params->go_ssid,
8014 : params->go_ssid_len);
8015 : }
8016 :
8017 0 : return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8018 0 : WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
8019 : params->go_freq, -1, 0, 1, 1);
8020 : }
8021 :
8022 :
8023 5 : static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8024 : struct p2p_nfc_params *params, int tag)
8025 : {
8026 : int res, persistent;
8027 : struct wpa_ssid *ssid;
8028 :
8029 5 : wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8030 : "connection handover");
8031 5 : for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8032 5 : ssid = wpa_s->current_ssid;
8033 5 : if (ssid == NULL)
8034 0 : continue;
8035 5 : if (ssid->mode != WPAS_MODE_P2P_GO)
8036 0 : continue;
8037 5 : if (wpa_s->ap_iface == NULL)
8038 0 : continue;
8039 5 : break;
8040 : }
8041 5 : if (wpa_s == NULL) {
8042 0 : wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8043 0 : return -1;
8044 : }
8045 :
8046 5 : if (wpa_s->parent->p2p_oob_dev_pw_id !=
8047 3 : DEV_PW_NFC_CONNECTION_HANDOVER &&
8048 3 : !wpa_s->parent->p2p_oob_dev_pw) {
8049 0 : wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8050 0 : return -1;
8051 : }
8052 15 : res = wpas_ap_wps_add_nfc_pw(
8053 5 : wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
8054 5 : wpa_s->parent->p2p_oob_dev_pw,
8055 5 : wpa_s->parent->p2p_peer_oob_pk_hash_known ?
8056 5 : wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8057 5 : if (res)
8058 0 : return res;
8059 :
8060 5 : if (!tag) {
8061 2 : wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8062 2 : return 0;
8063 : }
8064 :
8065 6 : if (!params->peer ||
8066 3 : !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8067 0 : return 0;
8068 :
8069 18 : wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8070 18 : " to join", MAC2STR(params->peer->p2p_device_addr));
8071 :
8072 3 : wpa_s->global->p2p_invite_group = wpa_s;
8073 3 : persistent = ssid->p2p_persistent_group &&
8074 0 : wpas_p2p_get_persistent(wpa_s->parent,
8075 0 : params->peer->p2p_device_addr,
8076 0 : ssid->ssid, ssid->ssid_len);
8077 3 : wpa_s->parent->pending_invite_ssid_id = -1;
8078 :
8079 9 : return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8080 3 : P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8081 6 : ssid->ssid, ssid->ssid_len, ssid->frequency,
8082 3 : wpa_s->global->p2p_dev_addr, persistent, 0,
8083 3 : wpa_s->parent->p2p_oob_dev_pw_id);
8084 : }
8085 :
8086 :
8087 9 : static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
8088 : struct p2p_nfc_params *params,
8089 : int forced_freq)
8090 : {
8091 9 : wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8092 : "connection handover");
8093 9 : return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8094 9 : WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
8095 : forced_freq, -1, 0, 1, 1);
8096 : }
8097 :
8098 :
8099 5 : static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
8100 : struct p2p_nfc_params *params,
8101 : int forced_freq)
8102 : {
8103 : int res;
8104 :
8105 5 : wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8106 : "connection handover");
8107 5 : res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8108 5 : WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
8109 : forced_freq, -1, 0, 1, 1);
8110 5 : if (res)
8111 0 : return res;
8112 :
8113 5 : res = wpas_p2p_listen(wpa_s, 60);
8114 5 : if (res) {
8115 0 : p2p_unauthorize(wpa_s->global->p2p,
8116 0 : params->peer->p2p_device_addr);
8117 : }
8118 :
8119 5 : return res;
8120 : }
8121 :
8122 :
8123 30 : static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8124 : const struct wpabuf *data,
8125 : int sel, int tag, int forced_freq)
8126 : {
8127 : const u8 *pos, *end;
8128 : u16 len, id;
8129 : struct p2p_nfc_params params;
8130 : int res;
8131 :
8132 30 : os_memset(¶ms, 0, sizeof(params));
8133 30 : params.sel = sel;
8134 :
8135 30 : wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8136 :
8137 30 : pos = wpabuf_head(data);
8138 30 : end = pos + wpabuf_len(data);
8139 :
8140 30 : if (end - pos < 2) {
8141 0 : wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8142 : "attributes");
8143 0 : return -1;
8144 : }
8145 30 : len = WPA_GET_BE16(pos);
8146 30 : pos += 2;
8147 30 : if (len > end - pos) {
8148 0 : wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8149 : "attributes");
8150 0 : return -1;
8151 : }
8152 30 : params.wsc_attr = pos;
8153 30 : params.wsc_len = len;
8154 30 : pos += len;
8155 :
8156 30 : if (end - pos < 2) {
8157 0 : wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8158 : "attributes");
8159 0 : return -1;
8160 : }
8161 30 : len = WPA_GET_BE16(pos);
8162 30 : pos += 2;
8163 30 : if (len > end - pos) {
8164 0 : wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8165 : "attributes");
8166 0 : return -1;
8167 : }
8168 30 : params.p2p_attr = pos;
8169 30 : params.p2p_len = len;
8170 30 : pos += len;
8171 :
8172 60 : wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8173 30 : params.wsc_attr, params.wsc_len);
8174 60 : wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8175 30 : params.p2p_attr, params.p2p_len);
8176 30 : if (pos < end) {
8177 0 : wpa_hexdump(MSG_DEBUG,
8178 : "P2P: Ignored extra data after P2P attributes",
8179 0 : pos, end - pos);
8180 : }
8181 :
8182 30 : res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, ¶ms);
8183 30 : if (res)
8184 3 : return res;
8185 :
8186 27 : if (params.next_step == NO_ACTION)
8187 0 : return 0;
8188 :
8189 27 : if (params.next_step == BOTH_GO) {
8190 12 : wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8191 12 : MAC2STR(params.peer->p2p_device_addr));
8192 2 : return 0;
8193 : }
8194 :
8195 25 : if (params.next_step == PEER_CLIENT) {
8196 1 : if (!is_zero_ether_addr(params.go_dev_addr)) {
8197 13 : wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8198 : "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8199 : " ssid=\"%s\"",
8200 6 : MAC2STR(params.peer->p2p_device_addr),
8201 : params.go_freq,
8202 6 : MAC2STR(params.go_dev_addr),
8203 : wpa_ssid_txt(params.go_ssid,
8204 : params.go_ssid_len));
8205 : } else {
8206 0 : wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8207 : "peer=" MACSTR " freq=%d",
8208 0 : MAC2STR(params.peer->p2p_device_addr),
8209 : params.go_freq);
8210 : }
8211 1 : return 0;
8212 : }
8213 :
8214 24 : if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
8215 6 : wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8216 6 : MACSTR, MAC2STR(params.peer->p2p_device_addr));
8217 1 : return 0;
8218 : }
8219 :
8220 23 : wpabuf_free(wpa_s->p2p_oob_dev_pw);
8221 23 : wpa_s->p2p_oob_dev_pw = NULL;
8222 :
8223 23 : if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8224 0 : wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8225 : "received");
8226 0 : return -1;
8227 : }
8228 :
8229 23 : id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8230 23 : wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8231 23 : wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8232 : params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8233 23 : os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8234 : params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8235 23 : wpa_s->p2p_peer_oob_pk_hash_known = 1;
8236 :
8237 23 : if (tag) {
8238 9 : if (id < 0x10) {
8239 0 : wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8240 : "peer OOB Device Password Id %u", id);
8241 0 : return -1;
8242 : }
8243 9 : wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8244 : "Device Password Id %u", id);
8245 9 : wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8246 : params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8247 9 : params.oob_dev_pw_len -
8248 : WPS_OOB_PUBKEY_HASH_LEN - 2);
8249 9 : wpa_s->p2p_oob_dev_pw_id = id;
8250 9 : wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8251 : params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8252 9 : params.oob_dev_pw_len -
8253 : WPS_OOB_PUBKEY_HASH_LEN - 2);
8254 9 : if (wpa_s->p2p_oob_dev_pw == NULL)
8255 0 : return -1;
8256 :
8257 10 : if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8258 1 : wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8259 1 : &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8260 0 : return -1;
8261 : } else {
8262 14 : wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8263 : "without Device Password");
8264 14 : wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8265 : }
8266 :
8267 23 : switch (params.next_step) {
8268 : case NO_ACTION:
8269 : case BOTH_GO:
8270 : case PEER_CLIENT:
8271 : /* already covered above */
8272 0 : return 0;
8273 : case JOIN_GROUP:
8274 4 : return wpas_p2p_nfc_join_group(wpa_s, ¶ms);
8275 : case AUTH_JOIN:
8276 5 : return wpas_p2p_nfc_auth_join(wpa_s, ¶ms, tag);
8277 : case INIT_GO_NEG:
8278 9 : return wpas_p2p_nfc_init_go_neg(wpa_s, ¶ms, forced_freq);
8279 : case RESP_GO_NEG:
8280 : /* TODO: use own OOB Dev Pw */
8281 5 : return wpas_p2p_nfc_resp_go_neg(wpa_s, ¶ms, forced_freq);
8282 : }
8283 :
8284 0 : return -1;
8285 : }
8286 :
8287 :
8288 12 : int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
8289 : const struct wpabuf *data, int forced_freq)
8290 : {
8291 12 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8292 0 : return -1;
8293 :
8294 12 : return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
8295 : }
8296 :
8297 :
8298 18 : int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8299 : const struct wpabuf *req,
8300 : const struct wpabuf *sel, int forced_freq)
8301 : {
8302 : struct wpabuf *tmp;
8303 : int ret;
8304 :
8305 18 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8306 0 : return -1;
8307 :
8308 18 : wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8309 :
8310 18 : wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8311 : wpabuf_head(req), wpabuf_len(req));
8312 18 : wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8313 : wpabuf_head(sel), wpabuf_len(sel));
8314 18 : if (forced_freq)
8315 0 : wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
8316 18 : tmp = ndef_parse_p2p(init ? sel : req);
8317 18 : if (tmp == NULL) {
8318 0 : wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8319 0 : return -1;
8320 : }
8321 :
8322 18 : ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8323 : forced_freq);
8324 18 : wpabuf_free(tmp);
8325 :
8326 18 : return ret;
8327 : }
8328 :
8329 :
8330 14 : int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8331 : {
8332 : const u8 *if_addr;
8333 14 : int go_intent = wpa_s->conf->p2p_go_intent;
8334 : struct wpa_supplicant *iface;
8335 :
8336 14 : if (wpa_s->global->p2p == NULL)
8337 0 : return -1;
8338 :
8339 14 : if (!enabled) {
8340 3 : wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8341 6 : for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8342 : {
8343 3 : if (!iface->ap_iface)
8344 3 : continue;
8345 0 : hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8346 : }
8347 3 : p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8348 : 0, NULL);
8349 3 : if (wpa_s->p2p_nfc_tag_enabled)
8350 3 : wpas_p2p_remove_pending_group_interface(wpa_s);
8351 3 : wpa_s->p2p_nfc_tag_enabled = 0;
8352 3 : return 0;
8353 : }
8354 :
8355 11 : if (wpa_s->global->p2p_disabled)
8356 0 : return -1;
8357 :
8358 22 : if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8359 22 : wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8360 22 : wpa_s->conf->wps_nfc_dev_pw == NULL ||
8361 11 : wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8362 0 : wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8363 : "to allow static handover cases");
8364 0 : return -1;
8365 : }
8366 :
8367 11 : wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8368 :
8369 11 : wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8370 11 : wpabuf_free(wpa_s->p2p_oob_dev_pw);
8371 11 : wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8372 11 : if (wpa_s->p2p_oob_dev_pw == NULL)
8373 0 : return -1;
8374 11 : wpa_s->p2p_peer_oob_pk_hash_known = 0;
8375 :
8376 22 : if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8377 11 : wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8378 : /*
8379 : * P2P Group Interface present and the command came on group
8380 : * interface, so enable the token for the current interface.
8381 : */
8382 0 : wpa_s->create_p2p_iface = 0;
8383 : } else {
8384 11 : wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8385 : }
8386 :
8387 11 : if (wpa_s->create_p2p_iface) {
8388 : enum wpa_driver_if_type iftype;
8389 : /* Prepare to add a new interface for the group */
8390 4 : iftype = WPA_IF_P2P_GROUP;
8391 4 : if (go_intent == 15)
8392 0 : iftype = WPA_IF_P2P_GO;
8393 4 : if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8394 0 : wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8395 : "interface for the group");
8396 0 : return -1;
8397 : }
8398 :
8399 4 : if_addr = wpa_s->pending_interface_addr;
8400 : } else
8401 7 : if_addr = wpa_s->own_addr;
8402 :
8403 11 : wpa_s->p2p_nfc_tag_enabled = enabled;
8404 :
8405 23 : for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8406 : struct hostapd_data *hapd;
8407 12 : if (iface->ap_iface == NULL)
8408 11 : continue;
8409 1 : hapd = iface->ap_iface->bss[0];
8410 1 : wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8411 2 : hapd->conf->wps_nfc_dh_pubkey =
8412 1 : wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8413 1 : wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8414 2 : hapd->conf->wps_nfc_dh_privkey =
8415 1 : wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8416 1 : wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8417 2 : hapd->conf->wps_nfc_dev_pw =
8418 1 : wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8419 1 : hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8420 :
8421 1 : if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8422 0 : wpa_dbg(iface, MSG_DEBUG,
8423 : "P2P: Failed to enable NFC Tag for GO");
8424 : }
8425 : }
8426 22 : p2p_set_authorized_oob_dev_pw_id(
8427 22 : wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8428 : if_addr);
8429 :
8430 11 : return 0;
8431 : }
8432 :
8433 : #endif /* CONFIG_WPS_NFC */
8434 :
8435 :
8436 34175 : static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8437 : struct wpa_used_freq_data *freqs,
8438 : unsigned int num)
8439 : {
8440 : u8 curr_chan, cand, chan;
8441 : unsigned int i;
8442 :
8443 : /*
8444 : * If possible, optimize the Listen channel to be a channel that is
8445 : * already used by one of the other interfaces.
8446 : */
8447 34175 : if (!wpa_s->conf->p2p_optimize_listen_chan)
8448 68330 : return;
8449 :
8450 17 : if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8451 14 : return;
8452 :
8453 3 : curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8454 5 : for (i = 0, cand = 0; i < num; i++) {
8455 3 : ieee80211_freq_to_chan(freqs[i].freq, &chan);
8456 3 : if (curr_chan == chan) {
8457 1 : cand = 0;
8458 1 : break;
8459 : }
8460 :
8461 2 : if (chan == 1 || chan == 6 || chan == 11)
8462 2 : cand = chan;
8463 : }
8464 :
8465 3 : if (cand) {
8466 2 : wpa_dbg(wpa_s, MSG_DEBUG,
8467 : "P2P: Update Listen channel to %u based on operating channel",
8468 : cand);
8469 2 : p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8470 : }
8471 : }
8472 :
8473 :
8474 2 : static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8475 : {
8476 2 : if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8477 0 : wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8478 0 : return -1;
8479 : }
8480 :
8481 : /* TODO: Add CSA support */
8482 2 : wpa_dbg(wpa_s, MSG_DEBUG, "Moving GO with CSA is not implemented");
8483 2 : return -1;
8484 : }
8485 :
8486 :
8487 2 : static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
8488 : {
8489 : struct p2p_go_neg_results params;
8490 2 : struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8491 :
8492 2 : wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
8493 :
8494 2 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
8495 : current_ssid->frequency);
8496 :
8497 : /* Stop the AP functionality */
8498 : /* TODO: Should do this in a way that does not indicated to possible
8499 : * P2P Clients in the group that the group is terminated. */
8500 2 : wpa_supplicant_ap_deinit(wpa_s);
8501 :
8502 : /* Reselect the GO frequency */
8503 2 : if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, NULL)) {
8504 0 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
8505 0 : wpas_p2p_group_delete(wpa_s,
8506 : P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8507 0 : return;
8508 : }
8509 2 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
8510 : params.freq);
8511 :
8512 4 : if (params.freq &&
8513 2 : !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
8514 0 : wpa_printf(MSG_DEBUG,
8515 : "P2P: Selected freq (%u MHz) is not valid for P2P",
8516 : params.freq);
8517 0 : wpas_p2p_group_delete(wpa_s,
8518 : P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8519 0 : return;
8520 : }
8521 :
8522 : /* Update the frequency */
8523 2 : current_ssid->frequency = params.freq;
8524 2 : wpa_s->connect_without_scan = current_ssid;
8525 2 : wpa_s->reassociate = 1;
8526 2 : wpa_s->disconnected = 0;
8527 2 : wpa_supplicant_req_scan(wpa_s, 0, 0);
8528 : }
8529 :
8530 :
8531 2 : static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
8532 : {
8533 2 : struct wpa_supplicant *wpa_s = eloop_ctx;
8534 :
8535 2 : if (!wpa_s->ap_iface || !wpa_s->current_ssid)
8536 2 : return;
8537 :
8538 2 : wpas_p2p_go_update_common_freqs(wpa_s);
8539 :
8540 : /*
8541 : * First, try a channel switch flow. If it is not supported or fails,
8542 : * take down the GO and bring it up again.
8543 : */
8544 2 : if (wpas_p2p_move_go_csa(wpa_s) < 0)
8545 2 : wpas_p2p_move_go_no_csa(wpa_s);
8546 : }
8547 :
8548 :
8549 0 : static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
8550 : {
8551 0 : struct wpa_supplicant *wpa_s = eloop_ctx;
8552 0 : struct wpa_used_freq_data *freqs = NULL;
8553 0 : unsigned int num = wpa_s->num_multichan_concurrent;
8554 :
8555 0 : freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8556 0 : if (!freqs)
8557 0 : return;
8558 :
8559 0 : num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8560 :
8561 : /* Previous attempt to move a GO was not possible -- try again. */
8562 0 : wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
8563 : WPAS_P2P_CHANNEL_UPDATE_ANY);
8564 :
8565 0 : os_free(freqs);
8566 : }
8567 :
8568 :
8569 : /*
8570 : * Consider moving a GO from its currently used frequency:
8571 : * 1. It is possible that due to regulatory consideration the frequency
8572 : * can no longer be used and there is a need to evacuate the GO.
8573 : * 2. It is possible that due to MCC considerations, it would be preferable
8574 : * to move the GO to a channel that is currently used by some other
8575 : * station interface.
8576 : *
8577 : * In case a frequency that became invalid is once again valid, cancel a
8578 : * previously initiated GO frequency change.
8579 : */
8580 8002 : static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
8581 : struct wpa_used_freq_data *freqs,
8582 : unsigned int num)
8583 : {
8584 8002 : unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
8585 : unsigned int timeout;
8586 : int freq;
8587 :
8588 8002 : wpas_p2p_go_update_common_freqs(wpa_s);
8589 :
8590 8002 : freq = wpa_s->current_ssid->frequency;
8591 16006 : for (i = 0, invalid_freq = 0; i < num; i++) {
8592 8004 : if (freqs[i].freq == freq) {
8593 8002 : flags = freqs[i].flags;
8594 :
8595 : /* The channel is invalid, must change it */
8596 8002 : if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
8597 5 : wpa_dbg(wpa_s, MSG_DEBUG,
8598 : "P2P: Freq=%d MHz no longer valid for GO",
8599 : freq);
8600 5 : invalid_freq = 1;
8601 : }
8602 2 : } else if (freqs[i].flags == 0) {
8603 : /* Freq is not used by any other station interface */
8604 0 : continue;
8605 2 : } else if (!p2p_supported_freq(wpa_s->global->p2p,
8606 2 : freqs[i].freq)) {
8607 : /* Freq is not valid for P2P use cases */
8608 0 : continue;
8609 2 : } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8610 : P2P_GO_FREQ_MOVE_SCM) {
8611 0 : policy_move = 1;
8612 2 : } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8613 0 : P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
8614 0 : wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8615 0 : policy_move = 1;
8616 : }
8617 : }
8618 :
8619 8002 : wpa_dbg(wpa_s, MSG_DEBUG,
8620 : "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
8621 : invalid_freq, policy_move, flags);
8622 :
8623 : /*
8624 : * The channel is valid, or we are going to have a policy move, so
8625 : * cancel timeout.
8626 : */
8627 8002 : if (!invalid_freq || policy_move) {
8628 7997 : wpa_dbg(wpa_s, MSG_DEBUG,
8629 : "P2P: Cancel a GO move from freq=%d MHz", freq);
8630 7997 : eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
8631 :
8632 7997 : if (wpas_p2p_in_progress(wpa_s)) {
8633 6022 : wpa_dbg(wpa_s, MSG_DEBUG,
8634 : "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
8635 6022 : eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
8636 : wpa_s, NULL);
8637 6022 : eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8638 : wpas_p2p_reconsider_moving_go,
8639 : wpa_s, NULL);
8640 6022 : return;
8641 : }
8642 : }
8643 :
8644 1980 : if (!invalid_freq && (!policy_move || flags != 0)) {
8645 1975 : wpa_dbg(wpa_s, MSG_DEBUG,
8646 : "P2P: Not initiating a GO frequency change");
8647 1975 : return;
8648 : }
8649 :
8650 5 : if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
8651 4 : timeout = P2P_GO_FREQ_CHANGE_TIME;
8652 : else
8653 1 : timeout = 0;
8654 :
8655 5 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
8656 : freq, timeout);
8657 5 : eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
8658 5 : eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
8659 : }
8660 :
8661 :
8662 34175 : static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
8663 : struct wpa_used_freq_data *freqs,
8664 : unsigned int num,
8665 : enum wpas_p2p_channel_update_trig trig)
8666 : {
8667 : struct wpa_supplicant *ifs;
8668 :
8669 34175 : eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
8670 : NULL);
8671 :
8672 : /*
8673 : * Travers all the radio interfaces, and for each GO interface, check
8674 : * if there is a need to move the GO from the frequency it is using,
8675 : * or in case the frequency is valid again, cancel the evacuation flow.
8676 : */
8677 77626 : dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
8678 : radio_list) {
8679 72078 : if (ifs->current_ssid == NULL ||
8680 28627 : ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
8681 35240 : continue;
8682 :
8683 : /*
8684 : * The GO was just started or completed channel switch, no need
8685 : * to move it.
8686 : */
8687 8211 : if (wpa_s == ifs &&
8688 188 : (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
8689 : trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
8690 209 : wpa_dbg(wpa_s, MSG_DEBUG,
8691 : "P2P: GO move - schedule re-consideration");
8692 209 : eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8693 : wpas_p2p_reconsider_moving_go,
8694 : wpa_s, NULL);
8695 209 : continue;
8696 : }
8697 :
8698 8002 : wpas_p2p_consider_moving_one_go(ifs, freqs, num);
8699 : }
8700 34175 : }
8701 :
8702 :
8703 24139 : void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
8704 : {
8705 24139 : if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8706 24539 : return;
8707 :
8708 23739 : wpas_p2p_update_channel_list(wpa_s,
8709 : WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
8710 : }
8711 :
8712 :
8713 612 : void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
8714 : {
8715 612 : if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
8716 239 : wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
8717 : "the management interface is being removed");
8718 239 : wpas_p2p_deinit_global(wpa_s->global);
8719 : }
8720 612 : }
8721 :
8722 :
8723 338 : void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
8724 : {
8725 338 : if (wpa_s->ap_iface->bss)
8726 338 : wpa_s->ap_iface->bss[0]->p2p_group = NULL;
8727 338 : wpas_p2p_group_deinit(wpa_s);
8728 338 : }
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