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P2P: Cleanup handling of unknown peer in PD Request processing
[thirdparty/hostap.git] / wpa_supplicant / p2p_supplicant.c
CommitLineData
b22128ef
JM		 1/*
2 * wpa_supplicant - P2P
3 * Copyright (c) 2009-2010, Atheros Communications
1b5d4714 4 * Copyright (c) 2010-2014, Jouni Malinen <j@w1.fi>
b22128ef 5 *
e22d4d95
JM		 6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
b22128ef
JM		 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"
adc33680 20#include "ap/ap_config.h"
f2c56602
JM		 21#include "ap/sta_info.h"
22#include "ap/ap_drv_ops.h"
dd876771 23#include "ap/wps_hostapd.h"
aefb53bd 24#include "ap/p2p_hostapd.h"
d7f1aa8f 25#include "ap/dfs.h"
20a0b03d
JM		 26#include "eapol_supp/eapol_supp_sm.h"
27#include "rsn_supp/wpa.h"
b22128ef
JM		 28#include "wpa_supplicant_i.h"
29#include "driver_i.h"
30#include "ap.h"
31#include "config_ssid.h"
32#include "config.h"
b22128ef
JM		 33#include "notify.h"
34#include "scan.h"
35#include "bss.h"
24f6497c 36#include "offchannel.h"
b22128ef
JM		 37#include "wps_supplicant.h"
38#include "p2p_supplicant.h"
b125c48f 39#include "wifi_display.h"
b22128ef
JM		 40
41
9b1ab931
JM		 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
84286a22
SDU		 48#define P2P_AUTO_PD_SCAN_ATTEMPTS 5
49
1a471ff0
IP		 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52 * it is currently using, but is no longer valid for P2P use cases.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
73afc20d
AO		 56/**
57 * Defines CSA parameters which are used when GO evacuates the no longer valid
58 * channel (and if the driver supports channel switch).
59 */
60#define P2P_GO_CSA_COUNT 7
61#define P2P_GO_CSA_BLOCK_TX 0
62
c8106615
JM		 63#ifndef P2P_MAX_CLIENT_IDLE
64/*
65 * How many seconds to try to reconnect to the GO when connection in P2P client
66 * role has been lost.
67 */
68#define P2P_MAX_CLIENT_IDLE 10
69#endif /* P2P_MAX_CLIENT_IDLE */
70
361cdf34
JM		 71#ifndef P2P_MAX_INITIAL_CONN_WAIT
72/*
73 * How many seconds to wait for initial 4-way handshake to get completed after
91364b7f
SDU		 74 * WPS provisioning step or after the re-invocation of a persistent group on a
75 * P2P Client.
361cdf34
JM		 76 */
77#define P2P_MAX_INITIAL_CONN_WAIT 10
78#endif /* P2P_MAX_INITIAL_CONN_WAIT */
79
c1c0b35f
JM		 80#ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
81/*
82 * How many seconds to wait for initial 4-way handshake to get completed after
83 * WPS provisioning step on the GO. This controls the extra time the P2P
84 * operation is considered to be in progress (e.g., to delay other scans) after
85 * WPS provisioning has been completed on the GO during group formation.
86 */
87#define P2P_MAX_INITIAL_CONN_WAIT_GO 10
88#endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
89
bbc6c729
JM		 90#ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
91/*
92 * How many seconds to wait for initial 4-way handshake to get completed after
93 * re-invocation of a persistent group on the GO when the client is expected
94 * to connect automatically (no user interaction).
95 */
96#define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
97#endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
98
2e5ba4b6
AS		 99#define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
100
dae4c82c
IP		 101/*
102 * How many seconds to wait to re-attempt to move GOs, in case previous attempt
103 * was not possible.
104 */
105#define P2P_RECONSIDER_GO_MOVE_DELAY 30
106
8dba4aef
JM		 107enum p2p_group_removal_reason {
108 P2P_GROUP_REMOVAL_UNKNOWN,
109 P2P_GROUP_REMOVAL_SILENT,
110 P2P_GROUP_REMOVAL_FORMATION_FAILED,
111 P2P_GROUP_REMOVAL_REQUESTED,
112 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
113 P2P_GROUP_REMOVAL_UNAVAILABLE,
5bf9a6c8 114 P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
8567866d 115 P2P_GROUP_REMOVAL_PSK_FAILURE,
1a471ff0
IP		 116 P2P_GROUP_REMOVAL_FREQ_CONFLICT,
117 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL
8dba4aef
JM		 118};
119
9b1ab931 120
b22128ef
JM		 121static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
122static struct wpa_supplicant *
123wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
124 int go);
23318bea
JM		 125static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
126 const u8 *ssid, size_t ssid_len);
c48414af
JM		 127static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
128 const u8 *ssid, size_t ssid_len);
ef922c4a 129static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
108def93 130static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0 131 const u8 *dev_addr, enum p2p_wps_method wps_method,
23318bea
JM		 132 int auto_join, int freq,
133 const u8 *ssid, size_t ssid_len);
b22128ef 134static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
72044390 135static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
3071e181
JM		 136static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
137static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
77dfafd0
JM		 138static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
139 void *timeout_ctx);
8567866d 140static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
b0e669be
JM		 141static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
142 int group_added);
a6294141 143static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
b3253ebb 144static void wpas_stop_listen(void *ctx);
fb2ac53d 145static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
bd10d938 146static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
6d908514
KV		 147static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
148 enum wpa_driver_if_type type);
d95c5994
JM		 149static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
150 int already_deleted);
c2675c87
IP		 151static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
152 struct wpa_used_freq_data *freqs,
153 unsigned int num);
1a471ff0 154static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx);
e280110d 155static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq);
3a8f008a
IP		 156static void
157wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
158 struct wpa_used_freq_data *freqs, unsigned int num,
159 enum wpas_p2p_channel_update_trig trig);
dae4c82c 160static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 161
162
0d08efa4
IP		 163/*
164 * Get the number of concurrent channels that the HW can operate, but that are
165 * currently not in use by any of the wpa_supplicant interfaces.
166 */
167static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
168{
169 int *freqs;
217cf499 170 int num, unused;
0d08efa4
IP		 171
172 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
173 if (!freqs)
174 return -1;
175
176 num = get_shared_radio_freqs(wpa_s, freqs,
177 wpa_s->num_multichan_concurrent);
178 os_free(freqs);
179
217cf499
JM		 180 unused = wpa_s->num_multichan_concurrent - num;
181 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
182 return unused;
0d08efa4
IP		 183}
184
185
186/*
187 * Get the frequencies that are currently in use by one or more of the virtual
188 * interfaces, and that are also valid for P2P operation.
189 */
a0c90bb0
IP		 190static unsigned int
191wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
192 struct wpa_used_freq_data *p2p_freqs,
193 unsigned int len)
0d08efa4 194{
a0c90bb0 195 struct wpa_used_freq_data *freqs;
0d08efa4
IP		 196 unsigned int num, i, j;
197
a0c90bb0
IP		 198 freqs = os_calloc(wpa_s->num_multichan_concurrent,
199 sizeof(struct wpa_used_freq_data));
0d08efa4 200 if (!freqs)
a0c90bb0 201 return 0;
0d08efa4 202
a0c90bb0
IP		 203 num = get_shared_radio_freqs_data(wpa_s, freqs,
204 wpa_s->num_multichan_concurrent);
0d08efa4 205
a0c90bb0 206 os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
0d08efa4
IP		 207
208 for (i = 0, j = 0; i < num && j < len; i++) {
a0c90bb0 209 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
0d08efa4
IP		 210 p2p_freqs[j++] = freqs[i];
211 }
212
213 os_free(freqs);
214
a0c90bb0 215 dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
217cf499 216
0d08efa4
IP		 217 return j;
218}
219
220
6cb27aa8
JM		 221static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
222 int freq)
223{
224 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
225 return;
86b91c89
IP		 226
227 /* Use the wpa_s used to control the P2P Device operation */
228 wpa_s = wpa_s->global->p2p_init_wpa_s;
229
230 if (wpa_s->conf->p2p_ignore_shared_freq &&
5624ccfe
JM		 231 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
232 wpas_p2p_num_unused_channels(wpa_s) > 0) {
21e491f2
JM		 233 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
234 freq);
b277a2be 235 freq = 0;
21e491f2 236 }
6cb27aa8
JM		 237 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
238}
239
240
b22128ef
JM		 241static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
242 struct wpa_scan_results *scan_res)
243{
244 size_t i;
245
1b5d4714
JM		 246 if (wpa_s->p2p_scan_work) {
247 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
248 wpa_s->p2p_scan_work = NULL;
249 radio_work_done(work);
250 }
251
9526fd29 252 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 253 return;
254
255 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
256 (int) scan_res->num);
257
258 for (i = 0; i < scan_res->num; i++) {
259 struct wpa_scan_res *bss = scan_res->res[i];
acb69cec 260 struct os_reltime time_tmp_age, entry_ts;
aaeb9c98
JM		 261 const u8 *ies;
262 size_t ies_len;
263
c5f10e80
JM		 264 time_tmp_age.sec = bss->age / 1000;
265 time_tmp_age.usec = (bss->age % 1000) * 1000;
acb69cec 266 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
aaeb9c98
JM		 267
268 ies = (const u8 *) (bss + 1);
269 ies_len = bss->ie_len;
270 if (bss->beacon_ie_len > 0 &&
271 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
272 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
273 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
274 MACSTR, MAC2STR(bss->bssid));
275 ies = ies + ies_len;
276 ies_len = bss->beacon_ie_len;
277 }
278
279
b22128ef 280 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
c5f10e80 281 bss->freq, &entry_ts, bss->level,
aaeb9c98 282 ies, ies_len) > 0)
9bcf9541 283 break;
b22128ef
JM		 284 }
285
286 p2p_scan_res_handled(wpa_s->global->p2p);
287}
288
289
1b5d4714
JM		 290static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
291{
292 struct wpa_supplicant *wpa_s = work->wpa_s;
293 struct wpa_driver_scan_params *params = work->ctx;
294 int ret;
295
296 if (deinit) {
b3253ebb
AO		 297 if (!work->started) {
298 wpa_scan_free_params(params);
299 return;
300 }
301
302 wpa_s->p2p_scan_work = NULL;
1b5d4714
JM		 303 return;
304 }
305
306 ret = wpa_drv_scan(wpa_s, params);
307 wpa_scan_free_params(params);
308 work->ctx = NULL;
309 if (ret) {
310 radio_work_done(work);
b951a974 311 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
1b5d4714
JM		 312 return;
313 }
314
b951a974 315 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
1b5d4714
JM		 316 os_get_reltime(&wpa_s->scan_trigger_time);
317 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
318 wpa_s->own_scan_requested = 1;
319 wpa_s->p2p_scan_work = work;
320}
321
322
7475d299
JM		 323static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
324 int freq)
325{
326 if (wpa_s->global->p2p_24ghz_social_channels &&
327 (freq == 2412 || freq == 2437 || freq == 2462)) {
328 /*
329 * Search all social channels regardless of whether these have
330 * been disabled for P2P operating channel use to avoid missing
331 * peers.
332 */
333 return 1;
334 }
335 return p2p_supported_freq(wpa_s->global->p2p, freq);
336}
337
338
046ef4aa
JMB		 339static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
340 unsigned int num_req_dev_types,
360182ed 341 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
b22128ef
JM		 342{
343 struct wpa_supplicant *wpa_s = ctx;
1b5d4714 344 struct wpa_driver_scan_params *params = NULL;
b22128ef 345 struct wpabuf *wps_ie, *ies;
1595eb93
AM		 346 unsigned int num_channels = 0;
347 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
206e1f42 348 size_t ielen;
1595eb93 349 u8 *n, i;
b22128ef 350
9526fd29
JM		 351 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
352 return -1;
353
1b5d4714
JM		 354 if (wpa_s->p2p_scan_work) {
355 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
356 return -1;
99fcd404
JM		 357 }
358
1b5d4714
JM		 359 params = os_zalloc(sizeof(*params));
360 if (params == NULL)
361 return -1;
b22128ef
JM		 362
363 /* P2P Wildcard SSID */
1b5d4714
JM		 364 params->num_ssids = 1;
365 n = os_malloc(P2P_WILDCARD_SSID_LEN);
366 if (n == NULL)
367 goto fail;
368 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
369 params->ssids[0].ssid = n;
370 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
b22128ef
JM		 371
372 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 373 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
374 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
046ef4aa 375 num_req_dev_types, req_dev_types);
b22128ef 376 if (wps_ie == NULL)
1b5d4714 377 goto fail;
b22128ef 378
206e1f42
JM		 379 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
380 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
b22128ef
JM		 381 if (ies == NULL) {
382 wpabuf_free(wps_ie);
1b5d4714 383 goto fail;
b22128ef
JM		 384 }
385 wpabuf_put_buf(ies, wps_ie);
386 wpabuf_free(wps_ie);
387
6d92fa6e 388 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
b22128ef 389
1b5d4714
JM		 390 params->p2p_probe = 1;
391 n = os_malloc(wpabuf_len(ies));
392 if (n == NULL) {
393 wpabuf_free(ies);
394 goto fail;
395 }
396 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
397 params->extra_ies = n;
398 params->extra_ies_len = wpabuf_len(ies);
399 wpabuf_free(ies);
b22128ef
JM		 400
401 switch (type) {
402 case P2P_SCAN_SOCIAL:
1595eb93
AM		 403 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
404 sizeof(int));
1b5d4714
JM		 405 if (params->freqs == NULL)
406 goto fail;
1595eb93 407 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
7475d299
JM		 408 if (wpas_p2p_search_social_channel(
409 wpa_s, social_channels_freq[i]))
1595eb93
AM		 410 params->freqs[num_channels++] =
411 social_channels_freq[i];
412 }
413 params->freqs[num_channels++] = 0;
b22128ef
JM		 414 break;
415 case P2P_SCAN_FULL:
416 break;
eb78a8d5
DU		 417 case P2P_SCAN_SPECIFIC:
418 params->freqs = os_calloc(2, sizeof(int));
419 if (params->freqs == NULL)
420 goto fail;
421 params->freqs[0] = freq;
422 params->freqs[1] = 0;
423 break;
b22128ef 424 case P2P_SCAN_SOCIAL_PLUS_ONE:
1595eb93
AM		 425 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
426 sizeof(int));
1b5d4714
JM		 427 if (params->freqs == NULL)
428 goto fail;
1595eb93 429 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
7475d299
JM		 430 if (wpas_p2p_search_social_channel(
431 wpa_s, social_channels_freq[i]))
1595eb93
AM		 432 params->freqs[num_channels++] =
433 social_channels_freq[i];
434 }
435 if (p2p_supported_freq(wpa_s->global->p2p, freq))
436 params->freqs[num_channels++] = freq;
437 params->freqs[num_channels++] = 0;
b22128ef
JM		 438 break;
439 }
440
b3253ebb 441 radio_remove_works(wpa_s, "p2p-scan", 0);
1b5d4714
JM		 442 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
443 params) < 0)
444 goto fail;
445 return 0;
0c96fd6d 446
1b5d4714
JM		 447fail:
448 wpa_scan_free_params(params);
449 return -1;
b22128ef
JM		 450}
451
452
b22128ef
JM		 453static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
454{
455 switch (p2p_group_interface) {
456 case P2P_GROUP_INTERFACE_PENDING:
457 return WPA_IF_P2P_GROUP;
458 case P2P_GROUP_INTERFACE_GO:
459 return WPA_IF_P2P_GO;
460 case P2P_GROUP_INTERFACE_CLIENT:
461 return WPA_IF_P2P_CLIENT;
462 }
463
464 return WPA_IF_P2P_GROUP;
465}
466
467
6c0da49f
JM		 468static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
469 const u8 *ssid,
470 size_t ssid_len, int *go)
471{
472 struct wpa_ssid *s;
473
474 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
475 for (s = wpa_s->conf->ssid; s; s = s->next) {
476 if (s->disabled != 0 || !s->p2p_group ||
477 s->ssid_len != ssid_len ||
478 os_memcmp(ssid, s->ssid, ssid_len) != 0)
479 continue;
480 if (s->mode == WPAS_MODE_P2P_GO &&
481 s != wpa_s->current_ssid)
482 continue;
483 if (go)
484 *go = s->mode == WPAS_MODE_P2P_GO;
485 return wpa_s;
486 }
487 }
488
489 return NULL;
490}
491
492
f2b3acc9
JM		 493static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
494{
495 struct wpa_supplicant *wpa_s = eloop_ctx;
496 wpa_printf(MSG_DEBUG,
497 "P2P: Complete previously requested removal of %s",
498 wpa_s->ifname);
499 wpas_p2p_disconnect(wpa_s);
500}
501
502
503static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
504 struct wpa_supplicant *calling_wpa_s)
505{
3586d55a 506 if (calling_wpa_s == wpa_s && wpa_s &&
f2b3acc9
JM		 507 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
508 /*
509 * The calling wpa_s instance is going to be removed. Do that
510 * from an eloop callback to keep the instance available until
511 * the caller has returned. This my be needed, e.g., to provide
512 * control interface responses on the per-interface socket.
513 */
514 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
515 wpa_s, NULL) < 0)
516 return -1;
517 return 0;
518 }
519
520 return wpas_p2p_disconnect(wpa_s);
521}
522
523
5fefce27
KV		 524/* Determine total number of clients in active groups where we are the GO */
525static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
526{
527 unsigned int count = 0;
528 struct wpa_ssid *s;
529
530 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
531 for (s = wpa_s->conf->ssid; s; s = s->next) {
532 wpa_printf(MSG_DEBUG,
533 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
534 wpa_s, s, s->disabled, s->p2p_group,
535 s->mode);
536 if (!s->disabled && s->p2p_group &&
537 s->mode == WPAS_MODE_P2P_GO) {
538 count += p2p_get_group_num_members(
539 wpa_s->p2p_group);
540 }
541 }
542 }
543
544 return count;
545}
546
547
8d5e7329
IP		 548static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant *wpa_s)
549{
550 return !wpa_s->p2p_mgmt && wpa_s->current_ssid &&
551 !wpa_s->current_ssid->disabled &&
552 wpa_s->current_ssid->p2p_group &&
553 wpa_s->current_ssid->p2p_persistent_group;
554}
555
556
557static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant *wpa_s)
558{
559 return p2p_is_active_persistent_group(wpa_s) &&
560 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO;
561}
562
563
6d908514
KV		 564/* Find an interface for a P2P group where we are the GO */
565static struct wpa_supplicant *
566wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
567{
568 struct wpa_supplicant *save = NULL;
6d908514
KV		 569
570 if (!wpa_s)
571 return NULL;
572
573 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8d5e7329
IP		 574 if (!p2p_is_active_persistent_go(wpa_s))
575 continue;
6d908514 576
8d5e7329
IP		 577 /* Prefer a group with connected clients */
578 if (p2p_get_group_num_members(wpa_s->p2p_group))
579 return wpa_s;
580 save = wpa_s;
6d908514
KV		 581 }
582
583 /* No group with connected clients, so pick the one without (if any) */
584 return save;
585}
586
587
ab804bcb
IP		 588static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant *wpa_s)
589{
590 return p2p_is_active_persistent_group(wpa_s) &&
591 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
592}
593
594
595/* Find an interface for a P2P group where we are the P2P Client */
596static struct wpa_supplicant *
597wpas_p2p_get_cli_group(struct wpa_supplicant *wpa_s)
598{
599 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
600 if (p2p_is_active_persistent_cli(wpa_s))
601 return wpa_s;
602 }
603
604 return NULL;
605}
606
607
369678ad
KV		 608/* Find an active P2P group where we are the GO */
609static struct wpa_ssid * wpas_p2p_group_go_ssid(struct wpa_supplicant *wpa_s,
610 u8 *bssid)
611{
8d5e7329 612 struct wpa_supplicant *go = wpas_p2p_get_go_group(wpa_s);
369678ad 613
8d5e7329
IP		 614 if (!go)
615 return NULL;
369678ad 616
8d5e7329
IP		 617 os_memcpy(bssid, go->own_addr, ETH_ALEN);
618 return go->current_ssid;
369678ad
KV		 619}
620
621
622/* Find a persistent group where we are the GO */
623static struct wpa_ssid *
624wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
625{
626 struct wpa_ssid *s;
627
628 for (s = wpa_s->conf->ssid; s; s = s->next) {
629 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
630 return s;
631 }
632
633 return NULL;
634}
635
636
6d908514
KV		 637static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role)
638{
ab804bcb 639 struct wpa_supplicant *wpa_s = ctx;
6d908514
KV		 640 struct wpa_ssid *s;
641 u8 conncap = P2PS_SETUP_NONE;
642 unsigned int owned_members = 0;
ab804bcb 643 struct wpa_supplicant *go_wpa_s, *cli_wpa_s;
6d908514
KV		 644 struct wpa_ssid *persistent_go;
645 int p2p_no_group_iface;
646
647 wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
648
649 /*
650 * For non-concurrent capable devices:
651 * If persistent_go, then no new.
652 * If GO, then no client.
653 * If client, then no GO.
654 */
655 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
ab804bcb
IP		 656 if (go_wpa_s)
657 owned_members = p2p_get_group_num_members(go_wpa_s->p2p_group);
6d908514 658 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
a698d6c8 659 p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
ab804bcb 660 cli_wpa_s = wpas_p2p_get_cli_group(wpa_s);
6d908514 661
ab804bcb
IP		 662 wpa_printf(MSG_DEBUG,
663 "P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p",
664 go_wpa_s, owned_members, cli_wpa_s, persistent_go);
6d908514
KV		 665
666 /* If not concurrent, restrict our choices */
667 if (p2p_no_group_iface) {
668 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
669
ab804bcb 670 if (cli_wpa_s)
6d908514
KV		 671 return P2PS_SETUP_NONE;
672
673 if (go_wpa_s) {
674 if (role == P2PS_SETUP_CLIENT ||
675 incoming == P2PS_SETUP_GROUP_OWNER ||
676 p2p_client_limit_reached(go_wpa_s->p2p_group))
677 return P2PS_SETUP_NONE;
678
679 return P2PS_SETUP_GROUP_OWNER;
680 }
681
682 if (persistent_go) {
683 if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
684 if (!incoming)
685 return P2PS_SETUP_GROUP_OWNER |
686 P2PS_SETUP_CLIENT;
687 if (incoming == P2PS_SETUP_NEW) {
688 u8 r;
689
690 if (os_get_random(&r, sizeof(r)) < 0 ||
691 (r & 1))
692 return P2PS_SETUP_CLIENT;
693 return P2PS_SETUP_GROUP_OWNER;
694 }
695 }
696 }
697 }
698
699 /* If a required role has been specified, handle it here */
700 if (role && role != P2PS_SETUP_NEW) {
701 switch (incoming) {
f8a80e39
IP		 702 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
703 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
704 /*
705 * Peer has an active GO, so if the role allows it and
706 * we do not have any active roles, become client.
707 */
708 if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s &&
709 !cli_wpa_s)
710 return P2PS_SETUP_CLIENT;
711
712 /* fall through */
713
6d908514
KV		 714 case P2PS_SETUP_NONE:
715 case P2PS_SETUP_NEW:
6d908514
KV		 716 conncap = role;
717 goto grp_owner;
718
719 case P2PS_SETUP_GROUP_OWNER:
720 /*
721 * Must be a complimentary role - cannot be a client to
722 * more than one peer.
723 */
ab804bcb 724 if (incoming == role || cli_wpa_s)
6d908514
KV		 725 return P2PS_SETUP_NONE;
726
727 return P2PS_SETUP_CLIENT;
728
729 case P2PS_SETUP_CLIENT:
730 /* Must be a complimentary role */
731 if (incoming != role) {
732 conncap = P2PS_SETUP_GROUP_OWNER;
733 goto grp_owner;
734 }
735
736 default:
737 return P2PS_SETUP_NONE;
738 }
739 }
740
741 /*
742 * For now, we only will support ownership of one group, and being a
743 * client of one group. Therefore, if we have either an existing GO
744 * group, or an existing client group, we will not do a new GO
745 * negotiation, but rather try to re-use the existing groups.
746 */
747 switch (incoming) {
748 case P2PS_SETUP_NONE:
749 case P2PS_SETUP_NEW:
ab804bcb 750 if (cli_wpa_s)
6d908514
KV		 751 conncap = P2PS_SETUP_GROUP_OWNER;
752 else if (!owned_members)
753 conncap = P2PS_SETUP_NEW;
754 else if (incoming == P2PS_SETUP_NONE)
755 conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
756 else
757 conncap = P2PS_SETUP_CLIENT;
758 break;
759
760 case P2PS_SETUP_CLIENT:
761 conncap = P2PS_SETUP_GROUP_OWNER;
762 break;
763
764 case P2PS_SETUP_GROUP_OWNER:
ab804bcb 765 if (!cli_wpa_s)
6d908514
KV		 766 conncap = P2PS_SETUP_CLIENT;
767 break;
768
769 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
770 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
f8a80e39
IP		 771 /*
772 * Peer has an active GO, so if the role allows it and
773 * we do not have any active roles, become client.
774 */
775 if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s && !cli_wpa_s)
776 return P2PS_SETUP_CLIENT;
777
ab804bcb 778 if (cli_wpa_s)
6d908514
KV		 779 conncap = P2PS_SETUP_GROUP_OWNER;
780 else {
781 u8 r;
782
783 if (os_get_random(&r, sizeof(r)) < 0 ||
784 (r & 1))
785 conncap = P2PS_SETUP_CLIENT;
786 else
787 conncap = P2PS_SETUP_GROUP_OWNER;
788 }
789 break;
790
791 default:
792 return P2PS_SETUP_NONE;
793 }
794
795grp_owner:
796 if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
797 (!incoming && (conncap & P2PS_SETUP_NEW))) {
798 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
799 conncap &= ~P2PS_SETUP_GROUP_OWNER;
6d908514
KV		 800
801 s = wpas_p2p_get_persistent_go(wpa_s);
ab804bcb 802 if (!s && !go_wpa_s && p2p_no_group_iface) {
6d908514
KV		 803 p2p_set_intended_addr(wpa_s->global->p2p,
804 wpa_s->own_addr);
ab804bcb 805 } else if (!s && !go_wpa_s) {
6d908514
KV		 806 if (wpas_p2p_add_group_interface(wpa_s,
807 WPA_IF_P2P_GO) < 0) {
808 wpa_printf(MSG_ERROR,
809 "P2P: Failed to allocate a new interface for the group");
810 return P2PS_SETUP_NONE;
811 }
93eca615 812 wpa_s->global->pending_group_iface_for_p2ps = 1;
6d908514
KV		 813 p2p_set_intended_addr(wpa_s->global->p2p,
814 wpa_s->pending_interface_addr);
815 }
816 }
817
818 return conncap;
819}
820
821
8dba4aef
JM		 822static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
823 enum p2p_group_removal_reason removal_reason)
b22128ef
JM		 824{
825 struct wpa_ssid *ssid;
826 char *gtype;
3071e181
JM		 827 const char *reason;
828
b22128ef
JM		 829 ssid = wpa_s->current_ssid;
830 if (ssid == NULL) {
831 /*
832 * The current SSID was not known, but there may still be a
0c802384
JM		 833 * pending P2P group interface waiting for provisioning or a
834 * P2P group that is trying to reconnect.
b22128ef
JM		 835 */
836 ssid = wpa_s->conf->ssid;
837 while (ssid) {
6d22a377 838 if (ssid->p2p_group && ssid->disabled != 2)
b22128ef
JM		 839 break;
840 ssid = ssid->next;
841 }
6f1ca696
JM		 842 if (ssid == NULL &&
843 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
844 {
30ee7692
MN		 845 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
846 "not found");
847 return -1;
848 }
b22128ef
JM		 849 }
850 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
851 gtype = "GO";
852 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
853 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
854 wpa_s->reassociate = 0;
855 wpa_s->disconnected = 1;
b22128ef
JM		 856 gtype = "client";
857 } else
858 gtype = "GO";
c45dabb8
EA		 859
860 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
861 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
862
debb2dac 863 if (os_strcmp(gtype, "client") == 0) {
c45dabb8 864 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
debb2dac
JM		 865 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
866 wpa_s, NULL)) {
867 wpa_printf(MSG_DEBUG,
868 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
869 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
870 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
871 wpa_s, NULL);
872 }
873 }
c45dabb8 874
72044390
JM		 875 if (wpa_s->cross_connect_in_use) {
876 wpa_s->cross_connect_in_use = 0;
92c4465b
JM		 877 wpa_msg_global(wpa_s->parent, MSG_INFO,
878 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
879 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390 880 }
8dba4aef 881 switch (removal_reason) {
3071e181
JM		 882 case P2P_GROUP_REMOVAL_REQUESTED:
883 reason = " reason=REQUESTED";
884 break;
8dba4aef
JM		 885 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
886 reason = " reason=FORMATION_FAILED";
887 break;
3071e181
JM		 888 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
889 reason = " reason=IDLE";
890 break;
c973f386
JM		 891 case P2P_GROUP_REMOVAL_UNAVAILABLE:
892 reason = " reason=UNAVAILABLE";
893 break;
3fc14102
JM		 894 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
895 reason = " reason=GO_ENDING_SESSION";
896 break;
5bf9a6c8
JM		 897 case P2P_GROUP_REMOVAL_PSK_FAILURE:
898 reason = " reason=PSK_FAILURE";
899 break;
8567866d
JJ		 900 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
901 reason = " reason=FREQ_CONFLICT";
902 break;
3071e181
JM		 903 default:
904 reason = "";
905 break;
906 }
8dba4aef 907 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
92c4465b
JM		 908 wpa_msg_global(wpa_s->parent, MSG_INFO,
909 P2P_EVENT_GROUP_REMOVED "%s %s%s",
910 wpa_s->ifname, gtype, reason);
aa9bb764 911 }
408af93e 912
8567866d
JJ		 913 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
914 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
dddc7045
JM		 915 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
916 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
77dfafd0 917 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
c9c77083 918 wpa_s->parent, NULL) > 0) {
77dfafd0
JM		 919 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
920 "timeout");
c9c77083 921 wpa_s->p2p_in_provisioning = 0;
be11a594 922 wpas_p2p_group_formation_failed(wpa_s, 1);
c9c77083 923 }
a7a30b90 924
41d5ce9e 925 wpa_s->p2p_in_invitation = 0;
1a471ff0 926 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
dae4c82c 927 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
41d5ce9e 928
adeb4f59
JM		 929 /*
930 * Make sure wait for the first client does not remain active after the
931 * group has been removed.
932 */
933 wpa_s->global->p2p_go_wait_client.sec = 0;
934
b22128ef
JM		 935 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
936 struct wpa_global *global;
937 char *ifname;
938 enum wpa_driver_if_type type;
939 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
940 wpa_s->ifname);
941 global = wpa_s->global;
942 ifname = os_strdup(wpa_s->ifname);
943 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
f2b3acc9 944 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
df509539 945 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
b22128ef
JM		 946 wpa_s = global->ifaces;
947 if (wpa_s && ifname)
948 wpa_drv_if_remove(wpa_s, type, ifname);
949 os_free(ifname);
0aadd568 950 return 1;
b22128ef
JM		 951 }
952
acdd0fc8
DG		 953 if (!wpa_s->p2p_go_group_formation_completed) {
954 wpa_s->global->p2p_group_formation = NULL;
955 wpa_s->p2p_in_provisioning = 0;
956 }
957
c092d83e
JM		 958 wpa_s->show_group_started = 0;
959 os_free(wpa_s->go_params);
960 wpa_s->go_params = NULL;
961
20beb96f
IP		 962 os_free(wpa_s->p2p_group_common_freqs);
963 wpa_s->p2p_group_common_freqs = NULL;
964 wpa_s->p2p_group_common_freqs_num = 0;
965
c64e3a08
JM		 966 wpa_s->waiting_presence_resp = 0;
967
b22128ef
JM		 968 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
969 if (ssid && (ssid->p2p_group ||
970 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
971 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
972 int id = ssid->id;
20a0b03d
JM		 973 if (ssid == wpa_s->current_ssid) {
974 wpa_sm_set_config(wpa_s->wpa, NULL);
975 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
b22128ef 976 wpa_s->current_ssid = NULL;
20a0b03d 977 }
c2762e41
JS		 978 /*
979 * Networks objects created during any P2P activities are not
980 * exposed out as they might/will confuse certain non-P2P aware
981 * applications since these network objects won't behave like
982 * regular ones.
983 *
984 * Likewise, we don't send out network removed signals for such
985 * network objects.
986 */
b22128ef
JM		 987 wpa_config_remove_network(wpa_s->conf, id);
988 wpa_supplicant_clear_status(wpa_s);
433cd2ce 989 wpa_supplicant_cancel_sched_scan(wpa_s);
b22128ef
JM		 990 } else {
991 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
992 "found");
993 }
3c29244e
EP		 994 if (wpa_s->ap_iface)
995 wpa_supplicant_ap_deinit(wpa_s);
996 else
997 wpa_drv_deinit_p2p_cli(wpa_s);
30ee7692 998
9f59fe8d
JM		 999 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1000
30ee7692 1001 return 0;
b22128ef
JM		 1002}
1003
1004
1005static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
1006 u8 *go_dev_addr,
1007 const u8 *ssid, size_t ssid_len)
1008{
1009 struct wpa_bss *bss;
1010 const u8 *bssid;
1011 struct wpabuf *p2p;
1012 u8 group_capab;
1013 const u8 *addr;
1014
1015 if (wpa_s->go_params)
1016 bssid = wpa_s->go_params->peer_interface_addr;
1017 else
1018 bssid = wpa_s->bssid;
1019
1020 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
23318bea
JM		 1021 if (bss == NULL && wpa_s->go_params &&
1022 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
1023 bss = wpa_bss_get_p2p_dev_addr(
1024 wpa_s, wpa_s->go_params->peer_device_addr);
b22128ef
JM		 1025 if (bss == NULL) {
1026 u8 iface_addr[ETH_ALEN];
1027 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
1028 iface_addr) == 0)
1029 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
1030 }
1031 if (bss == NULL) {
1032 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1033 "group is persistent - BSS " MACSTR " not found",
1034 MAC2STR(bssid));
1035 return 0;
1036 }
1037
1038 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5df7414b
JM		 1039 if (p2p == NULL)
1040 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
1041 P2P_IE_VENDOR_TYPE);
b22128ef
JM		 1042 if (p2p == NULL) {
1043 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1044 "group is persistent - BSS " MACSTR
1045 " did not include P2P IE", MAC2STR(bssid));
1046 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
1047 (u8 *) (bss + 1), bss->ie_len);
1048 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
1049 ((u8 *) bss + 1) + bss->ie_len,
1050 bss->beacon_ie_len);
1051 return 0;
1052 }
1053
1054 group_capab = p2p_get_group_capab(p2p);
1055 addr = p2p_get_go_dev_addr(p2p);
1056 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
1057 "group_capab=0x%x", group_capab);
1058 if (addr) {
1059 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1060 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1061 MAC2STR(addr));
1062 } else
1063 os_memset(go_dev_addr, 0, ETH_ALEN);
1064 wpabuf_free(p2p);
1065
1066 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1067 "go_dev_addr=" MACSTR,
1068 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1069
1070 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1071}
1072
1073
4b6baa2f
JMB		 1074static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1075 struct wpa_ssid *ssid,
1076 const u8 *go_dev_addr)
b22128ef
JM		 1077{
1078 struct wpa_ssid *s;
1079 int changed = 0;
1080
1081 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1082 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1083 for (s = wpa_s->conf->ssid; s; s = s->next) {
1084 if (s->disabled == 2 &&
1085 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1086 s->ssid_len == ssid->ssid_len &&
1087 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1088 break;
1089 }
1090
1091 if (s) {
1092 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1093 "entry");
1094 if (ssid->passphrase && !s->passphrase)
1095 changed = 1;
1096 else if (ssid->passphrase && s->passphrase &&
1097 os_strcmp(ssid->passphrase, s->passphrase) != 0)
1098 changed = 1;
1099 } else {
1100 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1101 "entry");
1102 changed = 1;
1103 s = wpa_config_add_network(wpa_s->conf);
1104 if (s == NULL)
4b6baa2f 1105 return -1;
c2762e41
JS		 1106
1107 /*
1108 * Instead of network_added we emit persistent_group_added
1109 * notification. Also to keep the defense checks in
1110 * persistent_group obj registration method, we set the
1111 * relevant flags in s to designate it as a persistent group.
1112 */
1113 s->p2p_group = 1;
1114 s->p2p_persistent_group = 1;
1115 wpas_notify_persistent_group_added(wpa_s, s);
b22128ef
JM		 1116 wpa_config_set_network_defaults(s);
1117 }
1118
1119 s->p2p_group = 1;
1120 s->p2p_persistent_group = 1;
1121 s->disabled = 2;
1122 s->bssid_set = 1;
1123 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1124 s->mode = ssid->mode;
1125 s->auth_alg = WPA_AUTH_ALG_OPEN;
1126 s->key_mgmt = WPA_KEY_MGMT_PSK;
1127 s->proto = WPA_PROTO_RSN;
1128 s->pairwise_cipher = WPA_CIPHER_CCMP;
d1c8ac88 1129 s->export_keys = 1;
b22128ef
JM		 1130 if (ssid->passphrase) {
1131 os_free(s->passphrase);
1132 s->passphrase = os_strdup(ssid->passphrase);
1133 }
1134 if (ssid->psk_set) {
1135 s->psk_set = 1;
1136 os_memcpy(s->psk, ssid->psk, 32);
1137 }
1138 if (s->passphrase && !s->psk_set)
1139 wpa_config_update_psk(s);
1140 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1141 os_free(s->ssid);
1142 s->ssid = os_malloc(ssid->ssid_len);
1143 }
1144 if (s->ssid) {
1145 s->ssid_len = ssid->ssid_len;
1146 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1147 }
01a57fe4
JM		 1148 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1149 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1150 wpa_s->global->add_psk = NULL;
1151 changed = 1;
1152 }
b22128ef 1153
b22128ef
JM		 1154 if (changed && wpa_s->conf->update_config &&
1155 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1156 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1157 }
4b6baa2f
JMB		 1158
1159 return s->id;
b22128ef
JM		 1160}
1161
1162
fbdcfd57
JM		 1163static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1164 const u8 *addr)
1165{
1166 struct wpa_ssid *ssid, *s;
1167 u8 *n;
1168 size_t i;
22316795 1169 int found = 0;
1e0a0294 1170 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
fbdcfd57
JM		 1171
1172 ssid = wpa_s->current_ssid;
1173 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1174 !ssid->p2p_persistent_group)
1175 return;
1176
1e0a0294 1177 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
fbdcfd57
JM		 1178 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1179 continue;
1180
1181 if (s->ssid_len == ssid->ssid_len &&
1182 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1183 break;
1184 }
1185
1186 if (s == NULL)
1187 return;
1188
1189 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
79cd993a 1190 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
22316795
JM		 1191 ETH_ALEN) != 0)
1192 continue;
1193
1194 if (i == s->num_p2p_clients - 1)
1195 return; /* already the most recent entry */
1196
1197 /* move the entry to mark it most recent */
79cd993a
ST		 1198 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1199 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1200 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
22316795 1201 os_memcpy(s->p2p_client_list +
79cd993a
ST		 1202 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1203 ETH_ALEN);
1204 os_memset(s->p2p_client_list +
1205 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1206 0xff, ETH_ALEN);
22316795
JM		 1207 found = 1;
1208 break;
fbdcfd57
JM		 1209 }
1210
b4a5dfa9 1211 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
22316795 1212 n = os_realloc_array(s->p2p_client_list,
79cd993a 1213 s->num_p2p_clients + 1, 2 * ETH_ALEN);
22316795
JM		 1214 if (n == NULL)
1215 return;
79cd993a
ST		 1216 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1217 ETH_ALEN);
1218 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1219 0xff, ETH_ALEN);
22316795
JM		 1220 s->p2p_client_list = n;
1221 s->num_p2p_clients++;
8931a36c 1222 } else if (!found && s->p2p_client_list) {
b4a5dfa9
JM		 1223 /* Not enough room for an additional entry - drop the oldest
1224 * entry */
1225 os_memmove(s->p2p_client_list,
79cd993a
ST		 1226 s->p2p_client_list + 2 * ETH_ALEN,
1227 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
b4a5dfa9 1228 os_memcpy(s->p2p_client_list +
79cd993a 1229 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
b4a5dfa9 1230 addr, ETH_ALEN);
79cd993a
ST		 1231 os_memset(s->p2p_client_list +
1232 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1233 0xff, ETH_ALEN);
22316795 1234 }
fbdcfd57 1235
1e0a0294
IP		 1236 if (p2p_wpa_s->conf->update_config &&
1237 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
fbdcfd57 1238 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
fbdcfd57
JM		 1239}
1240
1241
f8723e1e
JM		 1242static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1243 int go, struct wpa_ssid *ssid, int freq,
1244 const u8 *psk, const char *passphrase,
1245 const u8 *go_dev_addr, int persistent,
1246 const char *extra)
1247{
1248 const char *ssid_txt;
1249 char psk_txt[65];
1250
1251 if (psk)
1252 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1253 else
1254 psk_txt[0] = '\0';
1255
1256 if (ssid)
1257 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1258 else
1259 ssid_txt = "";
1260
1261 if (passphrase && passphrase[0] == '\0')
1262 passphrase = NULL;
1263
52f4abfd
JM		 1264 /*
1265 * Include PSK/passphrase only in the control interface message and
1266 * leave it out from the debug log entry.
1267 */
1268 wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
1269 P2P_EVENT_GROUP_STARTED
1270 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1271 MACSTR "%s%s",
1272 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1273 psk ? " psk=" : "", psk_txt,
1274 passphrase ? " passphrase=\"" : "",
1275 passphrase ? passphrase : "",
1276 passphrase ? "\"" : "",
1277 MAC2STR(go_dev_addr),
1278 persistent ? " [PERSISTENT]" : "", extra);
1279 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1280 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1281 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1282 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1283 extra);
f8723e1e
JM		 1284}
1285
1286
b22128ef 1287static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
d95c5994 1288 int success, int already_deleted)
b22128ef
JM		 1289{
1290 struct wpa_ssid *ssid;
b22128ef
JM		 1291 int client;
1292 int persistent;
1293 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 1294 int network_id = -1;
b22128ef
JM		 1295
1296 /*
1297 * This callback is likely called for the main interface. Update wpa_s
1298 * to use the group interface if a new interface was created for the
1299 * group.
1300 */
1301 if (wpa_s->global->p2p_group_formation)
1302 wpa_s = wpa_s->global->p2p_group_formation;
41f85323
JM		 1303 if (wpa_s->p2p_go_group_formation_completed) {
1304 wpa_s->global->p2p_group_formation = NULL;
1305 wpa_s->p2p_in_provisioning = 0;
1306 }
f05cee97 1307 wpa_s->p2p_in_invitation = 0;
61fc9048 1308 wpa_s->group_formation_reported = 1;
b22128ef
JM		 1309
1310 if (!success) {
92c4465b
JM		 1311 wpa_msg_global(wpa_s->parent, MSG_INFO,
1312 P2P_EVENT_GROUP_FORMATION_FAILURE);
2a95fac9 1313 wpas_notify_p2p_group_formation_failure(wpa_s, "");
d95c5994
JM		 1314 if (already_deleted)
1315 return;
8dba4aef
JM		 1316 wpas_p2p_group_delete(wpa_s,
1317 P2P_GROUP_REMOVAL_FORMATION_FAILED);
b22128ef
JM		 1318 return;
1319 }
1320
92c4465b
JM		 1321 wpa_msg_global(wpa_s->parent, MSG_INFO,
1322 P2P_EVENT_GROUP_FORMATION_SUCCESS);
b22128ef
JM		 1323
1324 ssid = wpa_s->current_ssid;
1325 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1326 ssid->mode = WPAS_MODE_P2P_GO;
1327 p2p_group_notif_formation_done(wpa_s->p2p_group);
1328 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1329 }
1330
1331 persistent = 0;
1332 if (ssid) {
b22128ef
JM		 1333 client = ssid->mode == WPAS_MODE_INFRA;
1334 if (ssid->mode == WPAS_MODE_P2P_GO) {
1335 persistent = ssid->p2p_persistent_group;
d7e70476 1336 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
b22128ef
JM		 1337 ETH_ALEN);
1338 } else
1339 persistent = wpas_p2p_persistent_group(wpa_s,
1340 go_dev_addr,
1341 ssid->ssid,
1342 ssid->ssid_len);
1343 } else {
b22128ef
JM		 1344 client = wpa_s->p2p_group_interface ==
1345 P2P_GROUP_INTERFACE_CLIENT;
62c0d27e 1346 os_memset(go_dev_addr, 0, ETH_ALEN);
b22128ef
JM		 1347 }
1348
1349 wpa_s->show_group_started = 0;
1350 if (client) {
1351 /*
1352 * Indicate event only after successfully completed 4-way
1353 * handshake, i.e., when the interface is ready for data
1354 * packets.
1355 */
1356 wpa_s->show_group_started = 1;
b22128ef 1357 } else {
f8723e1e
JM		 1358 wpas_p2p_group_started(wpa_s, 1, ssid,
1359 ssid ? ssid->frequency : 0,
1360 ssid && ssid->passphrase == NULL &&
1361 ssid->psk_set ? ssid->psk : NULL,
1362 ssid ? ssid->passphrase : NULL,
1363 go_dev_addr, persistent, "");
72044390 1364 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 1365 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 1366 }
1367
1368 if (persistent)
4b6baa2f
JMB		 1369 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
1370 ssid, go_dev_addr);
01a57fe4
JM		 1371 else {
1372 os_free(wpa_s->global->add_psk);
1373 wpa_s->global->add_psk = NULL;
1374 }
21fe9e75 1375 if (network_id < 0 && ssid)
4b6baa2f 1376 network_id = ssid->id;
c1c0b35f 1377 if (!client) {
4b6baa2f 1378 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
151ab808 1379 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
c1c0b35f 1380 }
b22128ef
JM		 1381}
1382
1383
e05e1308
JM		 1384struct send_action_work {
1385 unsigned int freq;
1386 u8 dst[ETH_ALEN];
1387 u8 src[ETH_ALEN];
1388 u8 bssid[ETH_ALEN];
1389 size_t len;
1390 unsigned int wait_time;
1391 u8 buf[0];
1392};
1393
1394
1395static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1396 void *timeout_ctx)
1397{
1398 struct wpa_supplicant *wpa_s = eloop_ctx;
1399
1400 if (!wpa_s->p2p_send_action_work)
1401 return;
1402
1403 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
1404 os_free(wpa_s->p2p_send_action_work->ctx);
1405 radio_work_done(wpa_s->p2p_send_action_work);
1406 wpa_s->p2p_send_action_work = NULL;
1407}
1408
1409
2fa980f0 1410static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
534525ff 1411{
e05e1308
JM		 1412 if (wpa_s->p2p_send_action_work) {
1413 struct send_action_work *awork;
1414 awork = wpa_s->p2p_send_action_work->ctx;
1415 if (awork->wait_time == 0) {
1416 os_free(awork);
1417 radio_work_done(wpa_s->p2p_send_action_work);
1418 wpa_s->p2p_send_action_work = NULL;
1419 } else {
1420 /*
1421 * In theory, this should not be needed, but number of
1422 * places in the P2P code is still using non-zero wait
1423 * time for the last Action frame in the sequence and
1424 * some of these do not call send_action_done().
1425 */
1426 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1427 wpa_s, NULL);
1428 eloop_register_timeout(
1429 0, awork->wait_time * 1000,
1430 wpas_p2p_send_action_work_timeout,
1431 wpa_s, NULL);
1432 }
1433 }
2fa980f0
JJ		 1434}
1435
1436
1437static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1438 unsigned int freq,
1439 const u8 *dst, const u8 *src,
1440 const u8 *bssid,
1441 const u8 *data, size_t data_len,
1442 enum offchannel_send_action_result
1443 result)
1444{
1445 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1446
1447 wpas_p2p_action_tx_clear(wpa_s);
e05e1308 1448
9526fd29 1449 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef
JM		 1450 return;
1451
24f6497c
JM		 1452 switch (result) {
1453 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1454 res = P2P_SEND_ACTION_SUCCESS;
1455 break;
1456 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1457 res = P2P_SEND_ACTION_NO_ACK;
1458 break;
1459 case OFFCHANNEL_SEND_ACTION_FAILED:
1460 res = P2P_SEND_ACTION_FAILED;
1461 break;
b22128ef
JM		 1462 }
1463
24f6497c 1464 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
b22128ef 1465
f63b8542
JM		 1466 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1467 wpa_s->pending_pd_before_join &&
24f6497c 1468 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
175171ac
JM		 1469 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1470 wpa_s->p2p_fallback_to_go_neg) {
b22128ef 1471 wpa_s->pending_pd_before_join = 0;
175171ac
JM		 1472 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1473 "during p2p_connect-auto");
6b005121
JM		 1474 wpa_msg_global(wpa_s->parent, MSG_INFO,
1475 P2P_EVENT_FALLBACK_TO_GO_NEG
1476 "reason=no-ACK-to-PD-Req");
175171ac
JM		 1477 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1478 return;
b22128ef
JM		 1479 }
1480}
1481
1482
e05e1308
JM		 1483static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1484{
1485 struct wpa_supplicant *wpa_s = work->wpa_s;
1486 struct send_action_work *awork = work->ctx;
1487
1488 if (deinit) {
b3253ebb
AO		 1489 if (work->started) {
1490 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1491 wpa_s, NULL);
1492 wpa_s->p2p_send_action_work = NULL;
1493 offchannel_send_action_done(wpa_s);
1494 }
e05e1308
JM		 1495 os_free(awork);
1496 return;
1497 }
1498
1499 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1500 awork->bssid, awork->buf, awork->len,
1501 awork->wait_time,
1502 wpas_p2p_send_action_tx_status, 1) < 0) {
1503 os_free(awork);
1504 radio_work_done(work);
1505 return;
1506 }
1507 wpa_s->p2p_send_action_work = work;
1508}
1509
1510
1511static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1512 unsigned int freq, const u8 *dst,
1513 const u8 *src, const u8 *bssid, const u8 *buf,
1514 size_t len, unsigned int wait_time)
1515{
1516 struct send_action_work *awork;
1517
1518 if (wpa_s->p2p_send_action_work) {
1519 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1520 return -1;
1521 }
1522
1523 awork = os_zalloc(sizeof(*awork) + len);
1524 if (awork == NULL)
1525 return -1;
1526
1527 awork->freq = freq;
1528 os_memcpy(awork->dst, dst, ETH_ALEN);
1529 os_memcpy(awork->src, src, ETH_ALEN);
1530 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1531 awork->len = len;
1532 awork->wait_time = wait_time;
1533 os_memcpy(awork->buf, buf, len);
1534
1535 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1536 wpas_send_action_cb, awork) < 0) {
1537 os_free(awork);
1538 return -1;
1539 }
1540
1541 return 0;
1542}
1543
1544
b22128ef
JM		 1545static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1546 const u8 *src, const u8 *bssid, const u8 *buf,
1547 size_t len, unsigned int wait_time)
1548{
1549 struct wpa_supplicant *wpa_s = ctx;
e05e1308
JM		 1550 int listen_freq = -1, send_freq = -1;
1551
1552 if (wpa_s->p2p_listen_work)
1553 listen_freq = wpa_s->p2p_listen_work->freq;
1554 if (wpa_s->p2p_send_action_work)
1555 send_freq = wpa_s->p2p_send_action_work->freq;
1556 if (listen_freq != (int) freq && send_freq != (int) freq) {
1557 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1558 listen_freq, send_freq);
1559 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1560 len, wait_time);
1561 }
1562
1563 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
24f6497c
JM		 1564 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1565 wait_time,
b106173a 1566 wpas_p2p_send_action_tx_status, 1);
b22128ef
JM		 1567}
1568
1569
1570static void wpas_send_action_done(void *ctx)
1571{
1572 struct wpa_supplicant *wpa_s = ctx;
e05e1308
JM		 1573
1574 if (wpa_s->p2p_send_action_work) {
1575 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1576 wpa_s, NULL);
1577 os_free(wpa_s->p2p_send_action_work->ctx);
1578 radio_work_done(wpa_s->p2p_send_action_work);
1579 wpa_s->p2p_send_action_work = NULL;
1580 }
1581
24f6497c 1582 offchannel_send_action_done(wpa_s);
b22128ef
JM		 1583}
1584
1585
1586static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1587 struct p2p_go_neg_results *params)
1588{
1589 if (wpa_s->go_params == NULL) {
1590 wpa_s->go_params = os_malloc(sizeof(*params));
1591 if (wpa_s->go_params == NULL)
1592 return -1;
1593 }
1594 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1595 return 0;
1596}
1597
1598
1599static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1600 struct p2p_go_neg_results *res)
1601{
61fc9048 1602 wpa_s->group_formation_reported = 0;
23318bea 1603 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
8e9f53c3 1604 " dev_addr " MACSTR " wps_method %d",
23318bea 1605 MAC2STR(res->peer_interface_addr),
8e9f53c3 1606 MAC2STR(res->peer_device_addr), res->wps_method);
e9a7ae41
JM		 1607 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1608 res->ssid, res->ssid_len);
b22128ef
JM		 1609 wpa_supplicant_ap_deinit(wpa_s);
1610 wpas_copy_go_neg_results(wpa_s, res);
db6ae69e 1611 if (res->wps_method == WPS_PBC) {
3b29972c 1612 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
db6ae69e
JM		 1613#ifdef CONFIG_WPS_NFC
1614 } else if (res->wps_method == WPS_NFC) {
23318bea
JM		 1615 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1616 res->peer_interface_addr,
db6ae69e
JM		 1617 wpa_s->parent->p2p_oob_dev_pw,
1618 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1619 wpa_s->parent->p2p_oob_dev_pw_id ==
1620 DEV_PW_NFC_CONNECTION_HANDOVER ?
1621 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1622 NULL,
91a65018 1623 NULL, 0, 0);
db6ae69e
JM		 1624#endif /* CONFIG_WPS_NFC */
1625 } else {
3c5126a4 1626 u16 dev_pw_id = DEV_PW_DEFAULT;
4f88fc04
BG		 1627 if (wpa_s->p2p_wps_method == WPS_P2PS)
1628 dev_pw_id = DEV_PW_P2PS_DEFAULT;
3c5126a4
JM		 1629 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1630 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
b22128ef 1631 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
3c5126a4
JM		 1632 wpa_s->p2p_pin, 1, dev_pw_id);
1633 }
b22128ef
JM		 1634}
1635
1636
01a57fe4
JM		 1637static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1638 struct wpa_ssid *ssid)
1639{
1640 struct wpa_ssid *persistent;
1641 struct psk_list_entry *psk;
1642 struct hostapd_data *hapd;
1643
1644 if (!wpa_s->ap_iface)
1645 return;
1646
1647 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1648 ssid->ssid_len);
1649 if (persistent == NULL)
1650 return;
1651
1652 hapd = wpa_s->ap_iface->bss[0];
1653
1654 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1655 list) {
1656 struct hostapd_wpa_psk *hpsk;
1657
1658 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1659 MACSTR " psk=%d",
1660 MAC2STR(psk->addr), psk->p2p);
1661 hpsk = os_zalloc(sizeof(*hpsk));
1662 if (hpsk == NULL)
1663 break;
1664 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1665 if (psk->p2p)
1666 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1667 else
1668 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1669 hpsk->next = hapd->conf->ssid.wpa_psk;
1670 hapd->conf->ssid.wpa_psk = hpsk;
1671 }
1672}
1673
1674
20beb96f
IP		 1675static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1676{
1677 unsigned int i;
1678
1679 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1680 wpa_s->p2p_group_common_freqs_num);
1681
1682 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1683 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1684 i, wpa_s->p2p_group_common_freqs[i]);
1685}
1686
1687
1688static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1689 struct p2p_go_neg_results *params)
1690{
1691 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1692
1693 wpa_s->p2p_group_common_freqs_num = 0;
1694 os_free(wpa_s->p2p_group_common_freqs);
1695 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1696 if (!wpa_s->p2p_group_common_freqs)
1697 return;
1698
1699 for (i = 0; i < len; i++) {
1700 if (!wpa_s->go_params->freq_list[i])
1701 break;
1702 wpa_s->p2p_group_common_freqs[i] =
1703 wpa_s->go_params->freq_list[i];
1704 }
1705 wpa_s->p2p_group_common_freqs_num = i;
1706}
1707
1708
895d94de
KV		 1709static void p2p_config_write(struct wpa_supplicant *wpa_s)
1710{
1711#ifndef CONFIG_NO_CONFIG_WRITE
1712 if (wpa_s->parent->conf->update_config &&
1713 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1714 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1715#endif /* CONFIG_NO_CONFIG_WRITE */
1716}
1717
1718
b22128ef
JM		 1719static void p2p_go_configured(void *ctx, void *data)
1720{
1721 struct wpa_supplicant *wpa_s = ctx;
1722 struct p2p_go_neg_results *params = data;
1723 struct wpa_ssid *ssid;
4b6baa2f 1724 int network_id = -1;
b22128ef 1725
20beb96f
IP		 1726 p2p_go_save_group_common_freqs(wpa_s, params);
1727 p2p_go_dump_common_freqs(wpa_s);
1728
b22128ef
JM		 1729 ssid = wpa_s->current_ssid;
1730 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1731 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
d1b024c9
JM		 1732 if (wpa_s->global->p2p_group_formation == wpa_s)
1733 wpa_s->global->p2p_group_formation = NULL;
f8723e1e
JM		 1734 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1735 params->passphrase[0] == '\0' ?
1736 params->psk : NULL,
1737 params->passphrase,
1738 wpa_s->global->p2p_dev_addr,
1739 params->persistent_group, "");
61fc9048 1740 wpa_s->group_formation_reported = 1;
4b6baa2f 1741
b9da88d6
AO		 1742 if (wpa_s->parent->p2ps_method_config_any) {
1743 if (is_zero_ether_addr(wpa_s->parent->p2ps_join_addr)) {
1744 wpa_dbg(wpa_s, MSG_DEBUG,
1745 "P2PS: Setting default PIN for ANY");
1746 wpa_supplicant_ap_wps_pin(wpa_s, NULL,
1747 "12345670", NULL, 0,
1748 0);
1749 } else {
1750 wpa_dbg(wpa_s, MSG_DEBUG,
1751 "P2PS: Setting default PIN for " MACSTR,
1752 MAC2STR(wpa_s->parent->p2ps_join_addr));
1753 wpa_supplicant_ap_wps_pin(
1754 wpa_s, wpa_s->parent->p2ps_join_addr,
1755 "12345670", NULL, 0, 0);
1756 }
1757 wpa_s->parent->p2ps_method_config_any = 0;
306aaf49
KV		 1758 }
1759
151ab808 1760 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
01a57fe4 1761 if (params->persistent_group) {
4b6baa2f 1762 network_id = wpas_p2p_store_persistent_group(
b22128ef 1763 wpa_s->parent, ssid,
d7e70476 1764 wpa_s->global->p2p_dev_addr);
01a57fe4
JM		 1765 wpas_p2p_add_psk_list(wpa_s, ssid);
1766 }
4b6baa2f
JMB		 1767 if (network_id < 0)
1768 network_id = ssid->id;
1769 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
72044390 1770 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 1771 wpas_p2p_set_group_idle_timeout(wpa_s);
bbc6c729
JM		 1772
1773 if (wpa_s->p2p_first_connection_timeout) {
1774 wpa_dbg(wpa_s, MSG_DEBUG,
1775 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1776 wpa_s->p2p_first_connection_timeout);
1777 wpa_s->p2p_go_group_formation_completed = 0;
1778 wpa_s->global->p2p_group_formation = wpa_s;
1779 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1780 wpa_s->parent, NULL);
1781 eloop_register_timeout(
1782 wpa_s->p2p_first_connection_timeout, 0,
1783 wpas_p2p_group_formation_timeout,
1784 wpa_s->parent, NULL);
1785 }
1786
b22128ef
JM		 1787 return;
1788 }
1789
1790 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1791 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1792 params->peer_interface_addr)) {
1793 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1794 "filtering");
1795 return;
1796 }
db6ae69e 1797 if (params->wps_method == WPS_PBC) {
d601247c 1798 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
c3daaf33 1799 params->peer_device_addr);
db6ae69e
JM		 1800#ifdef CONFIG_WPS_NFC
1801 } else if (params->wps_method == WPS_NFC) {
1802 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1803 DEV_PW_NFC_CONNECTION_HANDOVER &&
1804 !wpa_s->parent->p2p_oob_dev_pw) {
1805 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1806 return;
1807 }
1808 wpas_ap_wps_add_nfc_pw(
1809 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1810 wpa_s->parent->p2p_oob_dev_pw,
1811 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1812 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1813#endif /* CONFIG_WPS_NFC */
1814 } else if (wpa_s->p2p_pin[0])
b22128ef 1815 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
c423708f 1816 wpa_s->p2p_pin, NULL, 0, 0);
b22128ef
JM		 1817 os_free(wpa_s->go_params);
1818 wpa_s->go_params = NULL;
1819}
1820
1821
1822static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1823 struct p2p_go_neg_results *params,
1824 int group_formation)
1825{
1826 struct wpa_ssid *ssid;
1827
ac06fb12
JM		 1828 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1829 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1830 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1831 "results");
b22128ef 1832 return;
ac06fb12 1833 }
b22128ef
JM		 1834
1835 ssid = wpa_config_add_network(wpa_s->conf);
ac06fb12
JM		 1836 if (ssid == NULL) {
1837 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
b22128ef 1838 return;
ac06fb12 1839 }
b22128ef 1840
a9e02d59 1841 wpa_s->show_group_started = 0;
58b40fdb 1842 wpa_s->p2p_go_group_formation_completed = 0;
61fc9048 1843 wpa_s->group_formation_reported = 0;
9f59fe8d 1844 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
a9e02d59 1845
b22128ef
JM		 1846 wpa_config_set_network_defaults(ssid);
1847 ssid->temporary = 1;
1848 ssid->p2p_group = 1;
1849 ssid->p2p_persistent_group = params->persistent_group;
1850 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1851 WPAS_MODE_P2P_GO;
1852 ssid->frequency = params->freq;
7aeac985 1853 ssid->ht40 = params->ht40;
20ea1ca4 1854 ssid->vht = params->vht;
b22128ef
JM		 1855 ssid->ssid = os_zalloc(params->ssid_len + 1);
1856 if (ssid->ssid) {
1857 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1858 ssid->ssid_len = params->ssid_len;
1859 }
1860 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1861 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1862 ssid->proto = WPA_PROTO_RSN;
1863 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
d77419d2
AM		 1864 ssid->group_cipher = WPA_CIPHER_CCMP;
1865 if (params->freq > 56160) {
1866 /*
1867 * Enable GCMP instead of CCMP as pairwise_cipher and
1868 * group_cipher in 60 GHz.
1869 */
1870 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1871 ssid->group_cipher = WPA_CIPHER_GCMP;
1872 }
bb4d4deb
MH		 1873 if (os_strlen(params->passphrase) > 0) {
1874 ssid->passphrase = os_strdup(params->passphrase);
1875 if (ssid->passphrase == NULL) {
92c4465b
JM		 1876 wpa_msg_global(wpa_s, MSG_ERROR,
1877 "P2P: Failed to copy passphrase for GO");
bb4d4deb
MH		 1878 wpa_config_remove_network(wpa_s->conf, ssid->id);
1879 return;
1880 }
1881 } else
1882 ssid->passphrase = NULL;
30c371e8
MH		 1883 ssid->psk_set = params->psk_set;
1884 if (ssid->psk_set)
1885 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
6350a148 1886 else if (ssid->passphrase)
30c371e8 1887 wpa_config_update_psk(ssid);
462a7439 1888 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
b22128ef
JM		 1889
1890 wpa_s->ap_configured_cb = p2p_go_configured;
1891 wpa_s->ap_configured_cb_ctx = wpa_s;
1892 wpa_s->ap_configured_cb_data = wpa_s->go_params;
3e66f789 1893 wpa_s->scan_req = NORMAL_SCAN_REQ;
7dcdcfd6 1894 wpa_s->connect_without_scan = ssid;
b22128ef
JM		 1895 wpa_s->reassociate = 1;
1896 wpa_s->disconnected = 0;
ac06fb12
JM		 1897 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1898 "start GO)");
b22128ef
JM		 1899 wpa_supplicant_req_scan(wpa_s, 0, 0);
1900}
1901
1902
1903static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1904 const struct wpa_supplicant *src)
1905{
1906 struct wpa_config *d;
1907 const struct wpa_config *s;
1908
1909 d = dst->conf;
1910 s = src->conf;
1911
1912#define C(n) if (s->n) d->n = os_strdup(s->n)
1913 C(device_name);
1914 C(manufacturer);
1915 C(model_name);
1916 C(model_number);
1917 C(serial_number);
b22128ef
JM		 1918 C(config_methods);
1919#undef C
3071e181 1920
2f646b6e
JB		 1921 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1922 os_memcpy(d->sec_device_type, s->sec_device_type,
1923 sizeof(d->sec_device_type));
1924 d->num_sec_device_types = s->num_sec_device_types;
1925
3071e181 1926 d->p2p_group_idle = s->p2p_group_idle;
1a471ff0 1927 d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
b029bd33 1928 d->p2p_intra_bss = s->p2p_intra_bss;
acc247b2 1929 d->persistent_reconnect = s->persistent_reconnect;
f571b593 1930 d->max_num_sta = s->max_num_sta;
1298c145 1931 d->pbc_in_m1 = s->pbc_in_m1;
4342326f 1932 d->ignore_old_scan_res = s->ignore_old_scan_res;
41b1a76a 1933 d->beacon_int = s->beacon_int;
f62a3c2f 1934 d->dtim_period = s->dtim_period;
0b8bcaa5 1935 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
5046eb4e 1936 d->disassoc_low_ack = s->disassoc_low_ack;
f22f274b 1937 d->disable_scan_offload = s->disable_scan_offload;
c35e35ed 1938 d->passive_scan = s->passive_scan;
86e32081
JM		 1939
1940 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1941 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1942 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1943 }
07c1e987 1944 d->p2p_cli_probe = s->p2p_cli_probe;
b22128ef
JM		 1945}
1946
1947
2e5ba4b6
AS		 1948static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1949 char *ifname, size_t len)
1950{
1951 char *ifname_ptr = wpa_s->ifname;
1952
1953 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1954 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1955 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1956 }
1957
1958 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1959 if (os_strlen(ifname) >= IFNAMSIZ &&
1960 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1d399771
JM		 1961 int res;
1962
2e5ba4b6 1963 /* Try to avoid going over the IFNAMSIZ length limit */
1d399771
JM		 1964 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1965 if (os_snprintf_error(len, res) && len)
1966 ifname[len - 1] = '\0';
2e5ba4b6
AS		 1967 }
1968}
1969
1970
b22128ef
JM		 1971static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1972 enum wpa_driver_if_type type)
1973{
1974 char ifname[120], force_ifname[120];
1975
1976 if (wpa_s->pending_interface_name[0]) {
1977 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1978 "- skip creation of a new one");
1979 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1980 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1981 "unknown?! ifname='%s'",
1982 wpa_s->pending_interface_name);
1983 return -1;
1984 }
1985 return 0;
1986 }
1987
2e5ba4b6 1988 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
b22128ef
JM		 1989 force_ifname[0] = '\0';
1990
1991 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1992 ifname);
1993 wpa_s->p2p_group_idx++;
1994
1995 wpa_s->pending_interface_type = type;
1996 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
e17a2477 1997 wpa_s->pending_interface_addr, NULL) < 0) {
b22128ef
JM		 1998 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1999 "interface");
2000 return -1;
2001 }
2002
2003 if (force_ifname[0]) {
2004 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
2005 force_ifname);
2006 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
2007 sizeof(wpa_s->pending_interface_name));
2008 } else
2009 os_strlcpy(wpa_s->pending_interface_name, ifname,
2010 sizeof(wpa_s->pending_interface_name));
2011 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
2012 MACSTR, wpa_s->pending_interface_name,
2013 MAC2STR(wpa_s->pending_interface_addr));
2014
2015 return 0;
2016}
2017
2018
2019static void wpas_p2p_remove_pending_group_interface(
2020 struct wpa_supplicant *wpa_s)
2021{
2022 if (!wpa_s->pending_interface_name[0] ||
2023 is_zero_ether_addr(wpa_s->pending_interface_addr))
2024 return; /* No pending virtual interface */
2025
2026 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2027 wpa_s->pending_interface_name);
2028 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2029 wpa_s->pending_interface_name);
2030 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2031 wpa_s->pending_interface_name[0] = '\0';
93eca615 2032 wpa_s->global->pending_group_iface_for_p2ps = 0;
b22128ef
JM		 2033}
2034
2035
2036static struct wpa_supplicant *
2037wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2038{
2039 struct wpa_interface iface;
2040 struct wpa_supplicant *group_wpa_s;
2041
2042 if (!wpa_s->pending_interface_name[0]) {
2043 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
d75e8806
JM		 2044 if (!wpas_p2p_create_iface(wpa_s))
2045 return NULL;
2046 /*
2047 * Something has forced us to remove the pending interface; try
2048 * to create a new one and hope for the best that we will get
2049 * the same local address.
2050 */
2051 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2052 WPA_IF_P2P_CLIENT) < 0)
2053 return NULL;
b22128ef
JM		 2054 }
2055
2056 os_memset(&iface, 0, sizeof(iface));
2057 iface.ifname = wpa_s->pending_interface_name;
2058 iface.driver = wpa_s->driver->name;
78f79fe5
JM		 2059 if (wpa_s->conf->ctrl_interface == NULL &&
2060 wpa_s->parent != wpa_s &&
2061 wpa_s->p2p_mgmt &&
2062 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2063 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2064 else
2065 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
b22128ef 2066 iface.driver_param = wpa_s->conf->driver_param;
1772d348 2067 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
b22128ef
JM		 2068 if (group_wpa_s == NULL) {
2069 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2070 "wpa_supplicant interface");
2071 return NULL;
2072 }
2073 wpa_s->pending_interface_name[0] = '\0';
b22128ef
JM		 2074 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2075 P2P_GROUP_INTERFACE_CLIENT;
2076 wpa_s->global->p2p_group_formation = group_wpa_s;
93eca615 2077 wpa_s->global->pending_group_iface_for_p2ps = 0;
b22128ef
JM		 2078
2079 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2080
2081 return group_wpa_s;
2082}
2083
2084
2085static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2086 void *timeout_ctx)
2087{
2088 struct wpa_supplicant *wpa_s = eloop_ctx;
2089 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
d95c5994 2090 wpas_p2p_group_formation_failed(wpa_s, 0);
1075b295
JM		 2091}
2092
2093
d95c5994
JM		 2094static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2095 int already_deleted)
1075b295
JM		 2096{
2097 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2098 wpa_s->parent, NULL);
b22128ef
JM		 2099 if (wpa_s->global->p2p)
2100 p2p_group_formation_failed(wpa_s->global->p2p);
d95c5994 2101 wpas_group_formation_completed(wpa_s, 0, already_deleted);
b22128ef
JM		 2102}
2103
2104
95fb2db2
JM		 2105static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2106{
2107 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2108 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2109 wpa_s->parent, NULL);
2110 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2111 wpa_s->parent, NULL);
2112 wpa_s->global->p2p_fail_on_wps_complete = 0;
2113}
2114
2115
b2b688d1
VKE		 2116void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2117{
2118 if (wpa_s->global->p2p_group_formation != wpa_s)
2119 return;
2120 /* Speed up group formation timeout since this cannot succeed */
2121 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2122 wpa_s->parent, NULL);
2123 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2124 wpa_s->parent, NULL);
2125}
2126
2127
152cff6b 2128static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
b22128ef
JM		 2129{
2130 struct wpa_supplicant *wpa_s = ctx;
2131
8eada5ca 2132 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 2133 wpa_drv_cancel_remain_on_channel(wpa_s);
2134 wpa_s->off_channel_freq = 0;
07a30a66 2135 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 2136 }
2137
2138 if (res->status) {
92c4465b
JM		 2139 wpa_msg_global(wpa_s, MSG_INFO,
2140 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2141 res->status);
e5a359cf 2142 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef
JM		 2143 wpas_p2p_remove_pending_group_interface(wpa_s);
2144 return;
2145 }
2146
7c813acf
AK		 2147 if (!res->role_go) {
2148 /* Inform driver of the operating channel of GO. */
2149 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2150 }
2151
e2308e4b
RM		 2152 if (wpa_s->p2p_go_ht40)
2153 res->ht40 = 1;
20ea1ca4
EP		 2154 if (wpa_s->p2p_go_vht)
2155 res->vht = 1;
e2308e4b 2156
8d660e04
JM		 2157 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2158 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2159 " wps_method=%s",
2160 res->role_go ? "GO" : "client", res->freq, res->ht40,
2161 MAC2STR(res->peer_device_addr),
2162 MAC2STR(res->peer_interface_addr),
2163 p2p_wps_method_text(res->wps_method));
e5a359cf 2164 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef 2165
23c84252
JM		 2166 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2167 struct wpa_ssid *ssid;
2168 ssid = wpa_config_get_network(wpa_s->conf,
2169 wpa_s->p2p_persistent_id);
2170 if (ssid && ssid->disabled == 2 &&
2171 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2172 size_t len = os_strlen(ssid->passphrase);
2173 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2174 "on requested persistent group");
2175 os_memcpy(res->passphrase, ssid->passphrase, len);
2176 res->passphrase[len] = '\0';
2177 }
2178 }
2179
b22128ef
JM		 2180 if (wpa_s->create_p2p_iface) {
2181 struct wpa_supplicant *group_wpa_s =
2182 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2183 if (group_wpa_s == NULL) {
2184 wpas_p2p_remove_pending_group_interface(wpa_s);
5eae87a7
EA		 2185 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2186 wpa_s, NULL);
d95c5994 2187 wpas_p2p_group_formation_failed(wpa_s, 1);
b22128ef
JM		 2188 return;
2189 }
3c5126a4 2190 if (group_wpa_s != wpa_s) {
b22128ef
JM		 2191 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2192 sizeof(group_wpa_s->p2p_pin));
3c5126a4
JM		 2193 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2194 }
b22128ef
JM		 2195 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2196 wpa_s->pending_interface_name[0] = '\0';
2197 group_wpa_s->p2p_in_provisioning = 1;
2198
941cd3ec 2199 if (res->role_go) {
b22128ef 2200 wpas_start_wps_go(group_wpa_s, res, 1);
941cd3ec
JM		 2201 } else {
2202 os_get_reltime(&group_wpa_s->scan_min_time);
b22128ef 2203 wpas_start_wps_enrollee(group_wpa_s, res);
941cd3ec 2204 }
b22128ef
JM		 2205 } else {
2206 wpa_s->p2p_in_provisioning = 1;
2207 wpa_s->global->p2p_group_formation = wpa_s;
2208
941cd3ec 2209 if (res->role_go) {
b22128ef 2210 wpas_start_wps_go(wpa_s, res, 1);
941cd3ec
JM		 2211 } else {
2212 os_get_reltime(&wpa_s->scan_min_time);
b22128ef 2213 wpas_start_wps_enrollee(ctx, res);
941cd3ec 2214 }
b22128ef
JM		 2215 }
2216
2217 wpa_s->p2p_long_listen = 0;
2218 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2219
2220 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ae3e3421
JM		 2221 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2222 (res->peer_config_timeout % 100) * 10000,
2223 wpas_p2p_group_formation_timeout, wpa_s, NULL);
b22128ef
JM		 2224}
2225
2226
aa2b1256
MH		 2227static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2228 u8 go_intent)
b22128ef
JM		 2229{
2230 struct wpa_supplicant *wpa_s = ctx;
92c4465b 2231 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
aa2b1256
MH		 2232 " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2233 dev_passwd_id, go_intent);
32d1bce0 2234
aa2b1256 2235 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
b22128ef
JM		 2236}
2237
2238
152cff6b
JM		 2239static void wpas_dev_found(void *ctx, const u8 *addr,
2240 const struct p2p_peer_info *info,
2241 int new_device)
b22128ef 2242{
5506d184 2243#ifndef CONFIG_NO_STDOUT_DEBUG
b22128ef
JM		 2244 struct wpa_supplicant *wpa_s = ctx;
2245 char devtype[WPS_DEV_TYPE_BUFSIZE];
b125c48f
DS		 2246 char *wfd_dev_info_hex = NULL;
2247
2248#ifdef CONFIG_WIFI_DISPLAY
2249 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2250 WFD_SUBELEM_DEVICE_INFO);
2251#endif /* CONFIG_WIFI_DISPLAY */
c5db8e51 2252
095b3c40
BG		 2253 if (info->p2ps_instance) {
2254 char str[256];
2255 const u8 *buf = wpabuf_head(info->p2ps_instance);
2256 size_t len = wpabuf_len(info->p2ps_instance);
2257
2258 while (len) {
2259 u32 id;
2260 u16 methods;
2261 u8 str_len;
2262
2263 if (len < 4 + 2 + 1)
2264 break;
2265 id = WPA_GET_LE32(buf);
2266 buf += sizeof(u32);
2267 methods = WPA_GET_BE16(buf);
2268 buf += sizeof(u16);
2269 str_len = *buf++;
2270 if (str_len > len - 4 - 2 - 1)
2271 break;
2272 os_memcpy(str, buf, str_len);
2273 str[str_len] = '\0';
2274 buf += str_len;
2275 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2276
2277 wpa_msg_global(wpa_s, MSG_INFO,
2278 P2P_EVENT_DEVICE_FOUND MACSTR
2279 " p2p_dev_addr=" MACSTR
2280 " pri_dev_type=%s name='%s'"
2281 " config_methods=0x%x"
2282 " dev_capab=0x%x"
2283 " group_capab=0x%x"
2284 " adv_id=%x asp_svc=%s%s",
2285 MAC2STR(addr),
2286 MAC2STR(info->p2p_device_addr),
2287 wps_dev_type_bin2str(
2288 info->pri_dev_type,
2289 devtype, sizeof(devtype)),
2290 info->device_name, methods,
2291 info->dev_capab, info->group_capab,
2292 id, str,
2293 info->vendor_elems ?
2294 " vendor_elems=1" : "");
2295 }
2296 goto done;
2297 }
2298
92c4465b
JM		 2299 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2300 " p2p_dev_addr=" MACSTR
2301 " pri_dev_type=%s name='%s' config_methods=0x%x "
34d45ea0 2302 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
92c4465b
JM		 2303 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2304 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2305 sizeof(devtype)),
b125c48f
DS		 2306 info->device_name, info->config_methods,
2307 info->dev_capab, info->group_capab,
2308 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
71a0e395 2309 wfd_dev_info_hex ? wfd_dev_info_hex : "",
34d45ea0
JM		 2310 info->vendor_elems ? " vendor_elems=1" : "",
2311 new_device);
d642d2d2 2312
095b3c40 2313done:
b125c48f 2314 os_free(wfd_dev_info_hex);
1b56d398 2315#endif /* CONFIG_NO_STDOUT_DEBUG */
b125c48f 2316
d642d2d2 2317 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
b22128ef
JM		 2318}
2319
2320
56eeb8f2
JB		 2321static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2322{
2323 struct wpa_supplicant *wpa_s = ctx;
2324
92c4465b
JM		 2325 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2326 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
3074d8f1 2327
56eeb8f2
JB		 2328 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2329}
2330
2331
710ae9ac
JM		 2332static void wpas_find_stopped(void *ctx)
2333{
2334 struct wpa_supplicant *wpa_s = ctx;
92c4465b 2335 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
7b642dc8 2336 wpas_notify_p2p_find_stopped(wpa_s);
710ae9ac
JM		 2337}
2338
2339
e1d1c8e2
JM		 2340struct wpas_p2p_listen_work {
2341 unsigned int freq;
2342 unsigned int duration;
2343 struct wpabuf *probe_resp_ie;
2344};
2345
2346
2347static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
b22128ef 2348{
e1d1c8e2
JM		 2349 if (lwork == NULL)
2350 return;
2351 wpabuf_free(lwork->probe_resp_ie);
2352 os_free(lwork);
2353}
2354
2355
2356static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2357{
2358 struct wpas_p2p_listen_work *lwork;
2359
2360 if (!wpa_s->p2p_listen_work)
2361 return;
2362
2363 lwork = wpa_s->p2p_listen_work->ctx;
2364 wpas_p2p_listen_work_free(lwork);
2365 radio_work_done(wpa_s->p2p_listen_work);
2366 wpa_s->p2p_listen_work = NULL;
2367}
2368
2369
2370static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2371{
2372 struct wpa_supplicant *wpa_s = work->wpa_s;
2373 struct wpas_p2p_listen_work *lwork = work->ctx;
1f94e4ee 2374 unsigned int duration;
e1d1c8e2
JM		 2375
2376 if (deinit) {
b3253ebb
AO		 2377 if (work->started) {
2378 wpa_s->p2p_listen_work = NULL;
2379 wpas_stop_listen(wpa_s);
2380 }
e1d1c8e2
JM		 2381 wpas_p2p_listen_work_free(lwork);
2382 return;
2383 }
b22128ef 2384
e1d1c8e2
JM		 2385 wpa_s->p2p_listen_work = work;
2386
2387 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
b22128ef
JM		 2388
2389 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2390 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2391 "report received Probe Request frames");
e1d1c8e2
JM		 2392 wpas_p2p_listen_work_done(wpa_s);
2393 return;
b22128ef
JM		 2394 }
2395
e1d1c8e2
JM		 2396 wpa_s->pending_listen_freq = lwork->freq;
2397 wpa_s->pending_listen_duration = lwork->duration;
b22128ef 2398
1f94e4ee
JM		 2399 duration = lwork->duration;
2400#ifdef CONFIG_TESTING_OPTIONS
2401 if (wpa_s->extra_roc_dur) {
2402 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2403 duration, duration + wpa_s->extra_roc_dur);
2404 duration += wpa_s->extra_roc_dur;
2405 }
2406#endif /* CONFIG_TESTING_OPTIONS */
2407
2408 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
b22128ef
JM		 2409 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2410 "to remain on channel (%u MHz) for Listen "
e1d1c8e2
JM		 2411 "state", lwork->freq);
2412 wpas_p2p_listen_work_done(wpa_s);
b22128ef 2413 wpa_s->pending_listen_freq = 0;
e1d1c8e2 2414 return;
b22128ef 2415 }
09d660b9 2416 wpa_s->off_channel_freq = 0;
e1d1c8e2
JM		 2417 wpa_s->roc_waiting_drv_freq = lwork->freq;
2418}
2419
2420
2421static int wpas_start_listen(void *ctx, unsigned int freq,
2422 unsigned int duration,
2423 const struct wpabuf *probe_resp_ie)
2424{
2425 struct wpa_supplicant *wpa_s = ctx;
2426 struct wpas_p2p_listen_work *lwork;
2427
2428 if (wpa_s->p2p_listen_work) {
2429 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2430 return -1;
2431 }
2432
2433 lwork = os_zalloc(sizeof(*lwork));
2434 if (lwork == NULL)
2435 return -1;
2436 lwork->freq = freq;
2437 lwork->duration = duration;
2438 if (probe_resp_ie) {
2439 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2440 if (lwork->probe_resp_ie == NULL) {
2441 wpas_p2p_listen_work_free(lwork);
2442 return -1;
2443 }
2444 }
2445
2446 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2447 lwork) < 0) {
2448 wpas_p2p_listen_work_free(lwork);
2449 return -1;
2450 }
b22128ef
JM		 2451
2452 return 0;
2453}
2454
2455
2456static void wpas_stop_listen(void *ctx)
2457{
2458 struct wpa_supplicant *wpa_s = ctx;
6cb22d2f 2459 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 2460 wpa_drv_cancel_remain_on_channel(wpa_s);
2461 wpa_s->off_channel_freq = 0;
07a30a66 2462 wpa_s->roc_waiting_drv_freq = 0;
b22128ef 2463 }
839b33ad 2464 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
07c1e987
MS		 2465
2466 /*
2467 * Don't cancel Probe Request RX reporting for a connected P2P Client
2468 * handling Probe Request frames.
2469 */
2470 if (!wpa_s->p2p_cli_probe)
2471 wpa_drv_probe_req_report(wpa_s, 0);
2472
e1d1c8e2 2473 wpas_p2p_listen_work_done(wpa_s);
b22128ef
JM		 2474}
2475
2476
0799b3f8
AO		 2477static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2478 unsigned int freq)
b22128ef
JM		 2479{
2480 struct wpa_supplicant *wpa_s = ctx;
0799b3f8
AO		 2481 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2482 freq);
b22128ef
JM		 2483}
2484
2485
b22128ef 2486static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
bbeee9b0
JB		 2487 const u8 *peer, const char *params,
2488 unsigned int generated_pin)
b22128ef 2489{
92c4465b
JM		 2490 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2491 " %08d%s", MAC2STR(peer), generated_pin, params);
b22128ef
JM		 2492}
2493
2494
2495static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2496 const u8 *peer, const char *params)
2497{
92c4465b
JM		 2498 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2499 "%s", MAC2STR(peer), params);
b22128ef
JM		 2500}
2501
2502
152cff6b
JM		 2503static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2504 const u8 *dev_addr, const u8 *pri_dev_type,
2505 const char *dev_name, u16 supp_config_methods,
2506 u8 dev_capab, u8 group_capab, const u8 *group_id,
2507 size_t group_id_len)
b22128ef
JM		 2508{
2509 struct wpa_supplicant *wpa_s = ctx;
2510 char devtype[WPS_DEV_TYPE_BUFSIZE];
c3f42784 2511 char params[300];
b22128ef 2512 u8 empty_dev_type[8];
bbeee9b0 2513 unsigned int generated_pin = 0;
c3f42784 2514 struct wpa_supplicant *group = NULL;
1d399771 2515 int res;
c3f42784
JM		 2516
2517 if (group_id) {
2518 for (group = wpa_s->global->ifaces; group; group = group->next)
2519 {
2520 struct wpa_ssid *s = group->current_ssid;
2521 if (s != NULL &&
2522 s->mode == WPAS_MODE_P2P_GO &&
2523 group_id_len - ETH_ALEN == s->ssid_len &&
2524 os_memcmp(group_id + ETH_ALEN, s->ssid,
2525 s->ssid_len) == 0)
2526 break;
2527 }
2528 }
b22128ef
JM		 2529
2530 if (pri_dev_type == NULL) {
2531 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2532 pri_dev_type = empty_dev_type;
2533 }
1d399771
JM		 2534 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2535 " pri_dev_type=%s name='%s' config_methods=0x%x "
2536 "dev_capab=0x%x group_capab=0x%x%s%s",
2537 MAC2STR(dev_addr),
2538 wps_dev_type_bin2str(pri_dev_type, devtype,
2539 sizeof(devtype)),
2540 dev_name, supp_config_methods, dev_capab, group_capab,
2541 group ? " group=" : "",
2542 group ? group->ifname : "");
2543 if (os_snprintf_error(sizeof(params), res))
2544 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
b22128ef
JM		 2545 params[sizeof(params) - 1] = '\0';
2546
bbeee9b0
JB		 2547 if (config_methods & WPS_CONFIG_DISPLAY) {
2548 generated_pin = wps_generate_pin();
2549 wpas_prov_disc_local_display(wpa_s, peer, params,
2550 generated_pin);
2551 } else if (config_methods & WPS_CONFIG_KEYPAD)
b22128ef
JM		 2552 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2553 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
92c4465b
JM		 2554 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2555 MACSTR "%s", MAC2STR(peer), params);
dd8a7e05
JB		 2556
2557 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2558 P2P_PROV_DISC_SUCCESS,
2559 config_methods, generated_pin);
b22128ef
JM		 2560}
2561
2562
152cff6b 2563static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
b22128ef
JM		 2564{
2565 struct wpa_supplicant *wpa_s = ctx;
bbeee9b0 2566 unsigned int generated_pin = 0;
0918c4bf 2567 char params[20];
bbeee9b0 2568
c1931635
JM		 2569 if (wpa_s->pending_pd_before_join &&
2570 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2571 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2572 wpa_s->pending_pd_before_join = 0;
2573 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2574 "join-existing-group operation");
23318bea 2575 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
c1931635
JM		 2576 return;
2577 }
2578
0918c4bf 2579 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
1d399771
JM		 2580 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2581 int res;
2582
2583 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2584 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2585 if (os_snprintf_error(sizeof(params), res))
2586 params[sizeof(params) - 1] = '\0';
2587 } else
0918c4bf
JM		 2588 params[0] = '\0';
2589
b22128ef 2590 if (config_methods & WPS_CONFIG_DISPLAY)
0918c4bf 2591 wpas_prov_disc_local_keypad(wpa_s, peer, params);
bbeee9b0
JB		 2592 else if (config_methods & WPS_CONFIG_KEYPAD) {
2593 generated_pin = wps_generate_pin();
0918c4bf
JM		 2594 wpas_prov_disc_local_display(wpa_s, peer, params,
2595 generated_pin);
bbeee9b0 2596 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
92c4465b
JM		 2597 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2598 MACSTR "%s", MAC2STR(peer), params);
a482883f 2599
dd8a7e05
JB		 2600 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2601 P2P_PROV_DISC_SUCCESS,
2602 config_methods, generated_pin);
b22128ef
JM		 2603}
2604
2605
19df9b07 2606static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
ab8ee776
KV		 2607 enum p2p_prov_disc_status status,
2608 u32 adv_id, const u8 *adv_mac,
2609 const char *deferred_session_resp)
dd8a7e05
JB		 2610{
2611 struct wpa_supplicant *wpa_s = ctx;
2612
aa9bb764
JM		 2613 if (wpa_s->p2p_fallback_to_go_neg) {
2614 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2615 "failed - fall back to GO Negotiation");
6b005121
JM		 2616 wpa_msg_global(wpa_s->parent, MSG_INFO,
2617 P2P_EVENT_FALLBACK_TO_GO_NEG
2618 "reason=PD-failed");
aa9bb764
JM		 2619 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2620 return;
2621 }
2622
175171ac
JM		 2623 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2624 wpa_s->pending_pd_before_join = 0;
2625 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2626 "join-existing-group operation (no ACK for PD "
2627 "Req attempts)");
23318bea 2628 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
175171ac
JM		 2629 return;
2630 }
2631
ab8ee776
KV		 2632 if (adv_id && adv_mac && deferred_session_resp) {
2633 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2634 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2635 " deferred_session_resp='%s'",
2636 MAC2STR(peer), status, adv_id,
2637 deferred_session_resp);
2638 } else if (adv_id && adv_mac) {
2639 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2640 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2641 MAC2STR(peer), status, adv_id);
2642 } else {
2643 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2644 " p2p_dev_addr=" MACSTR " status=%d",
2645 MAC2STR(peer), status);
2646 }
f65a239b 2647
dd8a7e05
JB		 2648 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2649 status, 0, 0);
2650}
2651
2652
e280110d
IP		 2653static int freq_included(struct wpa_supplicant *wpa_s,
2654 const struct p2p_channels *channels,
2655 unsigned int freq)
72728c6f 2656{
e280110d
IP		 2657 if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2658 wpas_p2p_go_is_peer_freq(wpa_s, freq))
2659 return 1;
2660 return 0;
72728c6f
SL		 2661}
2662
2663
5e1f4805
IP		 2664static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2665{
2666 unsigned int num = P2P_MAX_CHANNELS;
2667 int *common_freqs;
2668 int ret;
2669
2670 p2p_go_dump_common_freqs(wpa_s);
2671 common_freqs = os_calloc(num, sizeof(int));
2672 if (!common_freqs)
2673 return;
2674
2675 ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2676 if (ret < 0) {
2677 wpa_dbg(wpa_s, MSG_DEBUG,
2678 "P2P: Failed to get group common freqs");
2679 os_free(common_freqs);
2680 return;
2681 }
2682
2683 os_free(wpa_s->p2p_group_common_freqs);
2684 wpa_s->p2p_group_common_freqs = common_freqs;
2685 wpa_s->p2p_group_common_freqs_num = num;
2686 p2p_go_dump_common_freqs(wpa_s);
2687}
2688
2689
1a471ff0
IP		 2690/*
2691 * Check if the given frequency is one of the possible operating frequencies
2692 * set after the completion of the GO Negotiation.
2693 */
2694static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2695{
2696 unsigned int i;
2697
2698 p2p_go_dump_common_freqs(wpa_s);
2699
2700 /* assume no restrictions */
2701 if (!wpa_s->p2p_group_common_freqs_num)
2702 return 1;
2703
2704 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2705 if (wpa_s->p2p_group_common_freqs[i] == freq)
2706 return 1;
2707 }
2708 return 0;
2709}
2710
2711
98b05081
AO		 2712static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
2713 struct sta_info *sta, void *ctx)
2714{
2715 int *ecsa_support = ctx;
2716
2717 *ecsa_support &= sta->ecsa_supported;
2718
2719 return 0;
2720}
2721
2722
2723/* Check if all the peers support eCSA */
2724static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
2725{
2726 int ecsa_support = 1;
2727
2728 ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
2729 &ecsa_support);
2730
2731 return ecsa_support;
2732}
2733
2734
a0c90bb0
IP		 2735/**
2736 * Pick the best frequency to use from all the currently used frequencies.
2737 */
2738static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2739 struct wpa_used_freq_data *freqs,
2740 unsigned int num)
2741{
2742 unsigned int i, c;
2743
2744 /* find a candidate freq that is supported by P2P */
2745 for (c = 0; c < num; c++)
2746 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2747 break;
2748
2749 if (c == num)
2750 return 0;
2751
2752 /* once we have a candidate, try to find a 'better' one */
2753 for (i = c + 1; i < num; i++) {
2754 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2755 continue;
2756
2757 /*
2758 * 1. Infrastructure station interfaces have higher preference.
2759 * 2. P2P Clients have higher preference.
2760 * 3. All others.
2761 */
2762 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2763 c = i;
2764 break;
2765 }
2766
2767 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2768 c = i;
2769 }
2770 return freqs[c].freq;
2771}
2772
2773
b22128ef
JM		 2774static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2775 const u8 *go_dev_addr, const u8 *ssid,
2776 size_t ssid_len, int *go, u8 *group_bssid,
72728c6f 2777 int *force_freq, int persistent_group,
8e9f53c3
JM		 2778 const struct p2p_channels *channels,
2779 int dev_pw_id)
b22128ef
JM		 2780{
2781 struct wpa_supplicant *wpa_s = ctx;
2782 struct wpa_ssid *s;
a0c90bb0 2783 struct wpa_used_freq_data *freqs;
ab72eb52 2784 struct wpa_supplicant *grp;
a0c90bb0 2785 int best_freq;
b22128ef
JM		 2786
2787 if (!persistent_group) {
2788 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
c48414af
JM		 2789 " to join an active group (SSID: %s)",
2790 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
108def93 2791 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
131cb37c
JM		 2792 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2793 == 0 ||
2794 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
108def93
JM		 2795 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2796 "authorized invitation");
2797 goto accept_inv;
2798 }
8e9f53c3
JM		 2799
2800#ifdef CONFIG_WPS_NFC
57ae1f5b
DS		 2801 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2802 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
8e9f53c3 2803 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
57ae1f5b
DS		 2804 wpa_s->p2p_wps_method = WPS_NFC;
2805 wpa_s->pending_join_wps_method = WPS_NFC;
2806 os_memcpy(wpa_s->pending_join_dev_addr,
8e9f53c3 2807 go_dev_addr, ETH_ALEN);
57ae1f5b 2808 os_memcpy(wpa_s->pending_join_iface_addr,
8e9f53c3
JM		 2809 bssid, ETH_ALEN);
2810 goto accept_inv;
2811 }
2812#endif /* CONFIG_WPS_NFC */
2813
b22128ef
JM		 2814 /*
2815 * Do not accept the invitation automatically; notify user and
2816 * request approval.
2817 */
2818 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2819 }
2820
ab72eb52
JM		 2821 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2822 if (grp) {
2823 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2824 "running persistent group");
2825 if (*go)
2826 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2827 goto accept_inv;
2828 }
2829
77e4e853
JM		 2830 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2831 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2832 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2833 "invitation to re-invoke a persistent group");
829a1b32 2834 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
77e4e853 2835 } else if (!wpa_s->conf->persistent_reconnect)
b22128ef
JM		 2836 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2837
2838 for (s = wpa_s->conf->ssid; s; s = s->next) {
2839 if (s->disabled == 2 &&
2840 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2841 s->ssid_len == ssid_len &&
2842 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2843 break;
2844 }
2845
2846 if (!s) {
2847 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2848 " requested reinvocation of an unknown group",
2849 MAC2STR(sa));
2850 return P2P_SC_FAIL_UNKNOWN_GROUP;
2851 }
2852
2853 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2854 *go = 1;
2855 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2856 wpa_printf(MSG_DEBUG, "P2P: The only available "
2857 "interface is already in use - reject "
2858 "invitation");
2859 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2860 }
2861 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2862 } else if (s->mode == WPAS_MODE_P2P_GO) {
2863 *go = 1;
2864 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2865 {
2866 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2867 "interface address for the group");
2868 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2869 }
2870 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2871 ETH_ALEN);
2872 }
2873
108def93 2874accept_inv:
6cb27aa8
JM		 2875 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2876
a0c90bb0
IP		 2877 best_freq = 0;
2878 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2879 sizeof(struct wpa_used_freq_data));
2880 if (freqs) {
2881 int num_channels = wpa_s->num_multichan_concurrent;
2882 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2883 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2884 os_free(freqs);
2885 }
2886
0d08efa4 2887 /* Get one of the frequencies currently in use */
a0c90bb0 2888 if (best_freq > 0) {
21e491f2 2889 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
a0c90bb0 2890 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
21e491f2
JM		 2891
2892 if (wpa_s->num_multichan_concurrent < 2 ||
2893 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2894 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
a0c90bb0 2895 *force_freq = best_freq;
21e491f2 2896 }
b22128ef
JM		 2897 }
2898
0d08efa4
IP		 2899 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2900 wpas_p2p_num_unused_channels(wpa_s) > 0) {
72728c6f
SL		 2901 if (*go == 0) {
2902 /* We are the client */
2903 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2904 "running a GO but we are capable of MCC, "
2905 "figure out the best channel to use");
2906 *force_freq = 0;
e280110d 2907 } else if (!freq_included(wpa_s, channels, *force_freq)) {
72728c6f
SL		 2908 /* We are the GO, and *force_freq is not in the
2909 * intersection */
2910 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2911 "in intersection but we are capable of MCC, "
2912 "figure out the best channel to use",
2913 *force_freq);
2914 *force_freq = 0;
2915 }
2916 }
2917
b22128ef
JM		 2918 return P2P_SC_SUCCESS;
2919}
2920
2921
2922static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2923 const u8 *ssid, size_t ssid_len,
2924 const u8 *go_dev_addr, u8 status,
2925 int op_freq)
2926{
2927 struct wpa_supplicant *wpa_s = ctx;
2928 struct wpa_ssid *s;
2929
2930 for (s = wpa_s->conf->ssid; s; s = s->next) {
2931 if (s->disabled == 2 &&
2932 s->ssid_len == ssid_len &&
2933 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2934 break;
2935 }
2936
2937 if (status == P2P_SC_SUCCESS) {
2938 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
c48414af
JM		 2939 " was accepted; op_freq=%d MHz, SSID=%s",
2940 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
b22128ef 2941 if (s) {
2cd07584 2942 int go = s->mode == WPAS_MODE_P2P_GO;
b22128ef 2943 wpas_p2p_group_add_persistent(
41d5ce9e 2944 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
dfaf11d6
JM		 2945 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
2946 1);
2049af2b 2947 } else if (bssid) {
67527166 2948 wpa_s->user_initiated_pd = 0;
108def93 2949 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
23318bea 2950 wpa_s->p2p_wps_method, 0, op_freq,
c48414af 2951 ssid, ssid_len);
b22128ef
JM		 2952 }
2953 return;
2954 }
2955
2956 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2957 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2958 " was rejected (status %u)", MAC2STR(sa), status);
2959 return;
2960 }
2961
2962 if (!s) {
2963 if (bssid) {
92c4465b
JM		 2964 wpa_msg_global(wpa_s, MSG_INFO,
2965 P2P_EVENT_INVITATION_RECEIVED
2966 "sa=" MACSTR " go_dev_addr=" MACSTR
2967 " bssid=" MACSTR " unknown-network",
2968 MAC2STR(sa), MAC2STR(go_dev_addr),
2969 MAC2STR(bssid));
b22128ef 2970 } else {
92c4465b
JM		 2971 wpa_msg_global(wpa_s, MSG_INFO,
2972 P2P_EVENT_INVITATION_RECEIVED
2973 "sa=" MACSTR " go_dev_addr=" MACSTR
2974 " unknown-network",
2975 MAC2STR(sa), MAC2STR(go_dev_addr));
b22128ef 2976 }
be5ab8d4
MJ		 2977 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
2978 bssid, 0, op_freq);
b22128ef
JM		 2979 return;
2980 }
2981
cd1e2309 2982 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
92c4465b
JM		 2983 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2984 "sa=" MACSTR " persistent=%d freq=%d",
2985 MAC2STR(sa), s->id, op_freq);
cd1e2309 2986 } else {
92c4465b
JM		 2987 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2988 "sa=" MACSTR " persistent=%d",
2989 MAC2STR(sa), s->id);
cd1e2309 2990 }
be5ab8d4
MJ		 2991 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
2992 s->id, op_freq);
b22128ef
JM		 2993}
2994
2995
dbca75f8
JM		 2996static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
2997 struct wpa_ssid *ssid,
f2c56602 2998 const u8 *peer, int inv)
dbca75f8
JM		 2999{
3000 size_t i;
b740401f 3001 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
dbca75f8
JM		 3002
3003 if (ssid == NULL)
3004 return;
3005
3006 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
79cd993a 3007 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
dbca75f8
JM		 3008 ETH_ALEN) == 0)
3009 break;
3010 }
8931a36c 3011 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
dbca75f8
JM		 3012 if (ssid->mode != WPAS_MODE_P2P_GO &&
3013 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3014 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3015 "due to invitation result", ssid->id);
3016 wpas_notify_network_removed(wpa_s, ssid);
3017 wpa_config_remove_network(wpa_s->conf, ssid->id);
3018 return;
3019 }
3020 return; /* Peer not found in client list */
3021 }
3022
3023 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
f2c56602
JM		 3024 "group %d client list%s",
3025 MAC2STR(peer), ssid->id,
3026 inv ? " due to invitation result" : "");
79cd993a
ST		 3027 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
3028 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3029 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
dbca75f8 3030 ssid->num_p2p_clients--;
b740401f
IP		 3031 if (p2p_wpa_s->conf->update_config &&
3032 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
dbca75f8 3033 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
dbca75f8
JM		 3034}
3035
3036
3037static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3038 const u8 *peer)
3039{
3040 struct wpa_ssid *ssid;
3041
3042 wpa_s = wpa_s->global->p2p_invite_group;
3043 if (wpa_s == NULL)
3044 return; /* No known invitation group */
3045 ssid = wpa_s->current_ssid;
3046 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3047 !ssid->p2p_persistent_group)
3048 return; /* Not operating as a GO in persistent group */
3049 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
3050 ssid->ssid, ssid->ssid_len);
f2c56602 3051 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8
JM		 3052}
3053
3054
54733624 3055static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
dbca75f8 3056 const struct p2p_channels *channels,
41d5ce9e
RR		 3057 const u8 *peer, int neg_freq,
3058 int peer_oper_freq)
b22128ef
JM		 3059{
3060 struct wpa_supplicant *wpa_s = ctx;
3061 struct wpa_ssid *ssid;
41d5ce9e 3062 int freq;
b22128ef
JM		 3063
3064 if (bssid) {
92c4465b
JM		 3065 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3066 "status=%d " MACSTR,
3067 status, MAC2STR(bssid));
b22128ef 3068 } else {
92c4465b
JM		 3069 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3070 "status=%d ", status);
b22128ef 3071 }
5ccdf84f 3072 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
b22128ef 3073
dbca75f8
JM		 3074 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3075 status, MAC2STR(peer));
3076 if (wpa_s->pending_invite_ssid_id == -1) {
3077 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3078 wpas_remove_persistent_client(wpa_s, peer);
706887fc 3079 return; /* Invitation to active group */
dbca75f8 3080 }
706887fc 3081
77e4e853
JM		 3082 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3083 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3084 "invitation exchange to indicate readiness for "
3085 "re-invocation");
3086 }
3087
b22128ef 3088 if (status != P2P_SC_SUCCESS) {
dbca75f8
JM		 3089 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3090 ssid = wpa_config_get_network(
3091 wpa_s->conf, wpa_s->pending_invite_ssid_id);
f2c56602 3092 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8 3093 }
b22128ef
JM		 3094 wpas_p2p_remove_pending_group_interface(wpa_s);
3095 return;
3096 }
3097
3098 ssid = wpa_config_get_network(wpa_s->conf,
3099 wpa_s->pending_invite_ssid_id);
3100 if (ssid == NULL) {
3101 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3102 "data matching with invitation");
3103 return;
3104 }
3105
13ece96f
JM		 3106 /*
3107 * The peer could have missed our ctrl::ack frame for Invitation
3108 * Response and continue retransmitting the frame. To reduce the
3109 * likelihood of the peer not getting successful TX status for the
3110 * Invitation Response frame, wait a short time here before starting
3111 * the persistent group so that we will remain on the current channel to
3112 * acknowledge any possible retransmission from the peer.
3113 */
3114 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3115 "starting persistent group");
3116 os_sleep(0, 50000);
3117
41d5ce9e 3118 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
e280110d 3119 freq_included(wpa_s, channels, neg_freq))
41d5ce9e
RR		 3120 freq = neg_freq;
3121 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
e280110d 3122 freq_included(wpa_s, channels, peer_oper_freq))
41d5ce9e
RR		 3123 freq = peer_oper_freq;
3124 else
3125 freq = 0;
3126
3127 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3128 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
b22128ef 3129 wpas_p2p_group_add_persistent(wpa_s, ssid,
4d32c0c4 3130 ssid->mode == WPAS_MODE_P2P_GO,
062a7c0d 3131 wpa_s->p2p_persistent_go_freq,
41d5ce9e 3132 freq,
20ea1ca4
EP		 3133 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3134 channels,
bbc6c729
JM		 3135 ssid->mode == WPAS_MODE_P2P_GO ?
3136 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
dfaf11d6 3137 0, 1);
b22128ef
JM		 3138}
3139
3140
6f3bc72b
JM		 3141static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3142 unsigned int freq)
3143{
253f2e37
AH		 3144 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3145 return 1;
af8a827b 3146 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
6f3bc72b
JM		 3147}
3148
3149
3150static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3151{
3152 reg->channel[reg->channels] = chan;
3153 reg->channels++;
3154}
3155
3156
ac8d1011 3157static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3158 struct p2p_channels *chan,
3159 struct p2p_channels *cli_chan)
ac8d1011
JM		 3160{
3161 int i, cla = 0;
3162
7475d299
JM		 3163 wpa_s->global->p2p_24ghz_social_channels = 1;
3164
51e9f228
JM		 3165 os_memset(cli_chan, 0, sizeof(*cli_chan));
3166
ac8d1011
JM		 3167 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3168 "band");
3169
3170 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3171 chan->reg_class[cla].reg_class = 81;
6f3bc72b
JM		 3172 chan->reg_class[cla].channels = 0;
3173 for (i = 0; i < 11; i++) {
3174 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3175 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3176 }
3177 if (chan->reg_class[cla].channels)
3178 cla++;
ac8d1011
JM		 3179
3180 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3181 "band");
3182
3183 /* Operating class 115 - 5 GHz, channels 36-48 */
3184 chan->reg_class[cla].reg_class = 115;
6f3bc72b
JM		 3185 chan->reg_class[cla].channels = 0;
3186 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3187 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3188 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3189 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3190 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3191 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3192 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3193 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3194 if (chan->reg_class[cla].channels)
3195 cla++;
ac8d1011
JM		 3196
3197 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3198 "band");
3199
3200 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3201 chan->reg_class[cla].reg_class = 124;
6f3bc72b
JM		 3202 chan->reg_class[cla].channels = 0;
3203 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3204 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3205 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3206 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3207 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3208 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3209 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3210 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3211 if (chan->reg_class[cla].channels)
3212 cla++;
ac8d1011
JM		 3213
3214 chan->reg_classes = cla;
3215 return 0;
3216}
3217
3218
3219static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3220 u16 num_modes,
3221 enum hostapd_hw_mode mode)
3222{
3223 u16 i;
3224
3225 for (i = 0; i < num_modes; i++) {
3226 if (modes[i].mode == mode)
3227 return &modes[i];
3228 }
3229
3230 return NULL;
3231}
3232
3233
51e9f228 3234enum chan_allowed {
0a443580 3235 NOT_ALLOWED, NO_IR, ALLOWED
51e9f228
JM		 3236};
3237
6f3bc72b
JM		 3238static int has_channel(struct wpa_global *global,
3239 struct hostapd_hw_modes *mode, u8 chan, int *flags)
ac8d1011
JM		 3240{
3241 int i;
6f3bc72b
JM		 3242 unsigned int freq;
3243
3244 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3245 chan * 5;
3246 if (wpas_p2p_disallowed_freq(global, freq))
51e9f228 3247 return NOT_ALLOWED;
ac8d1011
JM		 3248
3249 for (i = 0; i < mode->num_channels; i++) {
3250 if (mode->channels[i].chan == chan) {
51222429
JM		 3251 if (flags)
3252 *flags = mode->channels[i].flag;
51e9f228
JM		 3253 if (mode->channels[i].flag &
3254 (HOSTAPD_CHAN_DISABLED |
3255 HOSTAPD_CHAN_RADAR))
3256 return NOT_ALLOWED;
0a443580
IP		 3257 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3258 return NO_IR;
51e9f228 3259 return ALLOWED;
ac8d1011
JM		 3260 }
3261 }
3262
51e9f228 3263 return NOT_ALLOWED;
ac8d1011
JM		 3264}
3265
3266
3267struct p2p_oper_class_map {
3268 enum hostapd_hw_mode mode;
3269 u8 op_class;
3270 u8 min_chan;
3271 u8 max_chan;
3272 u8 inc;
1595eb93 3273 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
ac8d1011
JM		 3274};
3275
8b423edb 3276static const struct p2p_oper_class_map op_class[] = {
931228aa 3277 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
931228aa
RM		 3278#if 0 /* Do not enable HT40 on 2 GHz for now */
3279 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3280 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3281#endif
3282 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3283 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
0c9fb14e 3284 { HOSTAPD_MODE_IEEE80211A, 125, 149, 169, 4, BW20 },
931228aa
RM		 3285 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3286 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3287 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3288 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
ca9bc5b5
EP		 3289
3290 /*
3291 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3292 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3293 * 80 MHz, but currently use the following definition for simplicity
3294 * (these center frequencies are not actual channels, which makes
3295 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3296 * removing invalid channels.
3297 */
3298 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
1595eb93 3299 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
931228aa
RM		 3300 { -1, 0, 0, 0, 0, BW20 }
3301};
3302
3303
ca9bc5b5
EP		 3304static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3305 struct hostapd_hw_modes *mode,
3306 u8 channel)
3307{
3308 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3309 unsigned int i;
3310
3311 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3312 return 0;
3313
3314 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3315 /*
3316 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3317 * so the center channel is 6 channels away from the start/end.
3318 */
3319 if (channel >= center_channels[i] - 6 &&
3320 channel <= center_channels[i] + 6)
3321 return center_channels[i];
3322
3323 return 0;
3324}
3325
3326
3327static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3328 struct hostapd_hw_modes *mode,
3329 u8 channel, u8 bw)
3330{
3331 u8 center_chan;
3332 int i, flags;
3333 enum chan_allowed res, ret = ALLOWED;
3334
3335 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3336 if (!center_chan)
3337 return NOT_ALLOWED;
3338 if (center_chan >= 58 && center_chan <= 138)
3339 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3340
3341 /* check all the channels are available */
3342 for (i = 0; i < 4; i++) {
3343 int adj_chan = center_chan - 6 + i * 4;
3344
3345 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3346 if (res == NOT_ALLOWED)
3347 return NOT_ALLOWED;
0a443580
IP		 3348 if (res == NO_IR)
3349 ret = NO_IR;
ca9bc5b5
EP		 3350
3351 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3352 return NOT_ALLOWED;
3353 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3354 return NOT_ALLOWED;
3355 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3356 return NOT_ALLOWED;
3357 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3358 return NOT_ALLOWED;
3359 }
3360
3361 return ret;
3362}
3363
3364
51e9f228
JM		 3365static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3366 struct hostapd_hw_modes *mode,
3367 u8 channel, u8 bw)
931228aa 3368{
cbf21c7c 3369 int flag = 0;
51e9f228
JM		 3370 enum chan_allowed res, res2;
3371
3372 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3373 if (bw == BW40MINUS) {
3374 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3375 return NOT_ALLOWED;
3376 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3377 } else if (bw == BW40PLUS) {
3378 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3379 return NOT_ALLOWED;
3380 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
ca9bc5b5
EP		 3381 } else if (bw == BW80) {
3382 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
51e9f228
JM		 3383 }
3384
3385 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3386 return NOT_ALLOWED;
0a443580
IP		 3387 if (res == NO_IR || res2 == NO_IR)
3388 return NO_IR;
51e9f228 3389 return res;
931228aa
RM		 3390}
3391
3392
b22128ef 3393static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3394 struct p2p_channels *chan,
3395 struct p2p_channels *cli_chan)
b22128ef 3396{
6bf731e8 3397 struct hostapd_hw_modes *mode;
51e9f228 3398 int cla, op, cli_cla;
b22128ef 3399
6bf731e8 3400 if (wpa_s->hw.modes == NULL) {
b22128ef
JM		 3401 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3402 "of all supported channels; assume dualband "
3403 "support");
51e9f228 3404 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
b22128ef
JM		 3405 }
3406
51e9f228 3407 cla = cli_cla = 0;
b22128ef 3408
ac8d1011 3409 for (op = 0; op_class[op].op_class; op++) {
8b423edb 3410 const struct p2p_oper_class_map *o = &op_class[op];
ac8d1011 3411 u8 ch;
51e9f228 3412 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
b22128ef 3413
6bf731e8 3414 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
ac8d1011
JM		 3415 if (mode == NULL)
3416 continue;
7475d299
JM		 3417 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3418 wpa_s->global->p2p_24ghz_social_channels = 1;
ac8d1011 3419 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
51e9f228
JM		 3420 enum chan_allowed res;
3421 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3422 if (res == ALLOWED) {
3423 if (reg == NULL) {
3424 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3425 o->op_class);
3426 reg = &chan->reg_class[cla];
3427 cla++;
3428 reg->reg_class = o->op_class;
3429 }
3430 reg->channel[reg->channels] = ch;
3431 reg->channels++;
0a443580 3432 } else if (res == NO_IR &&
51e9f228
JM		 3433 wpa_s->conf->p2p_add_cli_chan) {
3434 if (cli_reg == NULL) {
3435 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3436 o->op_class);
3437 cli_reg = &cli_chan->reg_class[cli_cla];
3438 cli_cla++;
3439 cli_reg->reg_class = o->op_class;
3440 }
3441 cli_reg->channel[cli_reg->channels] = ch;
3442 cli_reg->channels++;
ac8d1011 3443 }
ac8d1011
JM		 3444 }
3445 if (reg) {
3446 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3447 reg->channel, reg->channels);
3448 }
51e9f228
JM		 3449 if (cli_reg) {
3450 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3451 cli_reg->channel, cli_reg->channels);
3452 }
b22128ef
JM		 3453 }
3454
ac8d1011 3455 chan->reg_classes = cla;
51e9f228 3456 cli_chan->reg_classes = cli_cla;
b22128ef 3457
b22128ef
JM		 3458 return 0;
3459}
3460
3461
7aeac985
RM		 3462int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3463 struct hostapd_hw_modes *mode, u8 channel)
3464{
51e9f228
JM		 3465 int op;
3466 enum chan_allowed ret;
7aeac985
RM		 3467
3468 for (op = 0; op_class[op].op_class; op++) {
8b423edb 3469 const struct p2p_oper_class_map *o = &op_class[op];
7aeac985
RM		 3470 u8 ch;
3471
3472 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3473 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
e4a80d89
EP		 3474 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3475 ch != channel)
7aeac985
RM		 3476 continue;
3477 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
51e9f228 3478 if (ret == ALLOWED)
7aeac985 3479 return (o->bw == BW40MINUS) ? -1 : 1;
7aeac985
RM		 3480 }
3481 }
3482 return 0;
3483}
3484
3485
ca9bc5b5
EP		 3486int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3487 struct hostapd_hw_modes *mode, u8 channel)
3488{
3489 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3490 return 0;
3491
3492 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3493}
3494
3495
b22128ef
JM		 3496static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3497 size_t buf_len)
3498{
3499 struct wpa_supplicant *wpa_s = ctx;
3500
3501 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3502 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3503 break;
3504 }
3505 if (wpa_s == NULL)
3506 return -1;
3507
3508 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3509}
3510
3511
6f04642f
TB		 3512struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3513 const u8 *ssid, size_t ssid_len)
b1aebbc4 3514{
6f04642f
TB		 3515 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3516 struct wpa_ssid *s = wpa_s->current_ssid;
3517 if (s == NULL)
3518 continue;
3519 if (s->mode != WPAS_MODE_P2P_GO &&
3520 s->mode != WPAS_MODE_AP &&
3521 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3522 continue;
3523 if (s->ssid_len != ssid_len ||
af65bc36 3524 os_memcmp(ssid, s->ssid, ssid_len) != 0)
6f04642f
TB		 3525 continue;
3526 return wpa_s;
3527 }
3528
3529 return NULL;
3530
3531}
3532
b1aebbc4 3533
6f04642f
TB		 3534struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3535 const u8 *peer_dev_addr)
3536{
b1aebbc4
JM		 3537 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3538 struct wpa_ssid *ssid = wpa_s->current_ssid;
9f59fe8d 3539 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
b1aebbc4 3540 continue;
6f04642f
TB		 3541 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3542 return wpa_s;
b1aebbc4
JM		 3543 }
3544
6f04642f
TB		 3545 return NULL;
3546}
3547
3548
3549static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3550{
3551 struct wpa_supplicant *wpa_s = ctx;
3552
3553 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
b1aebbc4
JM		 3554}
3555
3556
a2d63657
RR		 3557static int wpas_is_concurrent_session_active(void *ctx)
3558{
3559 struct wpa_supplicant *wpa_s = ctx;
3560 struct wpa_supplicant *ifs;
3561
3562 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3563 if (ifs == wpa_s)
3564 continue;
3565 if (ifs->wpa_state > WPA_ASSOCIATED)
3566 return 1;
3567 }
3568 return 0;
3569}
3570
3571
ed496f13
JM		 3572static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3573{
3574 struct wpa_supplicant *wpa_s = ctx;
92c4465b 3575 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
ed496f13
JM		 3576}
3577
3578
f1a61311
JM		 3579int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3580 const char *conf_p2p_dev)
c68f6200
AS		 3581{
3582 struct wpa_interface iface;
3583 struct wpa_supplicant *p2pdev_wpa_s;
3584 char ifname[100];
3585 char force_name[100];
3586 int ret;
3587
1d399771
JM		 3588 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3589 wpa_s->ifname);
3590 if (os_snprintf_error(sizeof(ifname), ret))
3591 return -1;
c68f6200
AS		 3592 force_name[0] = '\0';
3593 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3594 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3595 force_name, wpa_s->pending_interface_addr, NULL);
3596 if (ret < 0) {
3597 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3598 return ret;
3599 }
3600 os_strlcpy(wpa_s->pending_interface_name, ifname,
3601 sizeof(wpa_s->pending_interface_name));
3602
3603 os_memset(&iface, 0, sizeof(iface));
3604 iface.p2p_mgmt = 1;
3605 iface.ifname = wpa_s->pending_interface_name;
3606 iface.driver = wpa_s->driver->name;
c68f6200 3607 iface.driver_param = wpa_s->conf->driver_param;
c16a7590
IP		 3608
3609 /*
3610 * If a P2P Device configuration file was given, use it as the interface
3611 * configuration file (instead of using parent's configuration file.
3612 */
f1a61311
JM		 3613 if (conf_p2p_dev) {
3614 iface.confname = conf_p2p_dev;
c16a7590
IP		 3615 iface.ctrl_interface = NULL;
3616 } else {
3617 iface.confname = wpa_s->confname;
3618 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3619 }
c16a7590 3620
1772d348 3621 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
c68f6200
AS		 3622 if (!p2pdev_wpa_s) {
3623 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3624 return -1;
3625 }
3626
3627 wpa_s->pending_interface_name[0] = '\0';
3628 return 0;
3629}
3630
3631
c64e3a08
JM		 3632static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3633 const u8 *noa, size_t noa_len)
3634{
3635 struct wpa_supplicant *wpa_s, *intf = ctx;
3636 char hex[100];
3637
3638 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3639 if (wpa_s->waiting_presence_resp)
3640 break;
3641 }
3642 if (!wpa_s) {
3643 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3644 return;
3645 }
3646 wpa_s->waiting_presence_resp = 0;
3647
3648 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3649 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3650 " status=%u noa=%s", MAC2STR(src), status, hex);
3651}
3652
3653
369678ad
KV		 3654static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3655 size_t ssid_len, u8 *go_dev_addr,
1f1a08b4
AO		 3656 u8 *ret_ssid, size_t *ret_ssid_len,
3657 u8 *intended_iface_addr)
369678ad
KV		 3658{
3659 struct wpa_supplicant *wpa_s = ctx;
3660 struct wpa_ssid *s;
3661
3662 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3663 if (s) {
3664 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3665 *ret_ssid_len = s->ssid_len;
3666 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
1f1a08b4
AO		 3667
3668 if (s->mode != WPAS_MODE_P2P_GO) {
3669 os_memset(intended_iface_addr, 0, ETH_ALEN);
3670 } else if (wpas_p2p_create_iface(wpa_s)) {
3671 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3672 return 0;
3673
3674 os_memcpy(intended_iface_addr,
3675 wpa_s->pending_interface_addr, ETH_ALEN);
3676 } else {
3677 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3678 ETH_ALEN);
3679 }
369678ad
KV		 3680 return 1;
3681 }
3682
3683 return 0;
3684}
3685
3686
3687static int wpas_get_go_info(void *ctx, u8 *intended_addr,
3688 u8 *ssid, size_t *ssid_len, int *group_iface)
3689{
3690 struct wpa_supplicant *wpa_s = ctx;
3691 struct wpa_ssid *s;
3692 u8 bssid[ETH_ALEN];
3693
5cc6ec0f
AO		 3694 /*
3695 * group_iface will be set to 1 only if a dedicated interface for P2P
3696 * role is required. First, we try to reuse an active GO. However,
3697 * if it is not present, we will try to reactivate an existing
3698 * persistent group and set group_iface to 1, so the caller will know
3699 * that the pending interface should be used.
3700 */
3701 *group_iface = 0;
369678ad
KV		 3702 s = wpas_p2p_group_go_ssid(wpa_s, bssid);
3703 if (!s) {
3704 s = wpas_p2p_get_persistent_go(wpa_s);
5cc6ec0f 3705 *group_iface = wpas_p2p_create_iface(wpa_s);
369678ad
KV		 3706 if (s)
3707 os_memcpy(bssid, s->bssid, ETH_ALEN);
5cc6ec0f
AO		 3708 else
3709 return 0;
369678ad
KV		 3710 }
3711
369678ad
KV		 3712 os_memcpy(intended_addr, bssid, ETH_ALEN);
3713 os_memcpy(ssid, s->ssid, s->ssid_len);
3714 *ssid_len = s->ssid_len;
3715
3716 return 1;
3717}
3718
3719
895d94de
KV		 3720static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3721 const u8 *ssid, size_t ssid_len)
3722{
3723 struct wpa_supplicant *wpa_s = ctx;
3724 struct wpa_ssid *s;
3725 int save_config = 0;
3726 size_t i;
3727
3728 /* Start with our first choice of Persistent Groups */
3729 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3730 if (go && ssid && ssid_len &&
3731 s->ssid_len == ssid_len &&
3732 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3733 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3734 break;
3735
3736 /* Remove stale persistent group */
3737 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3738 wpa_config_remove_network(wpa_s->conf, s->id);
3739 save_config = 1;
3740 continue;
3741 }
3742
3743 for (i = 0; i < s->num_p2p_clients; i++) {
3744 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3745 peer, ETH_ALEN) != 0)
3746 continue;
3747
3748 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3749 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3750 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3751 break;
3752 }
3753 s->num_p2p_clients--;
3754 save_config = 1;
3755 }
3756
3757 if (save_config)
3758 p2p_config_write(wpa_s);
3759
3760 /* Return TRUE if valid SSID remains */
3761 return s != NULL;
3762}
3763
3764
88f3d7c9
MS		 3765static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3766 const u8 *feat_cap, size_t feat_cap_len)
3767{
3768 static const char pref[] = " feature_cap=";
3769 int ret;
3770
3771 buf[0] = '\0';
3772
3773 /*
3774 * We expect a feature capability to contain at least one byte to be
3775 * reported. The string buffer provided by the caller function is
3776 * expected to be big enough to contain all bytes of the attribute for
3777 * known specifications. This function truncates the reported bytes if
3778 * the feature capability data exceeds the string buffer size.
3779 */
3780 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3781 return;
3782
3783 os_memcpy(buf, pref, sizeof(pref));
3784 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3785 buf_len - sizeof(pref) + 1,
3786 feat_cap, feat_cap_len);
3787
3788 if (ret != (2 * (int) feat_cap_len))
3789 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3790}
3791
3792
5fefce27
KV		 3793static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3794 const u8 *adv_mac, const u8 *ses_mac,
3795 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3796 u8 conncap, int passwd_id,
3797 const u8 *persist_ssid,
3798 size_t persist_ssid_size, int response_done,
88f3d7c9
MS		 3799 int prov_start, const char *session_info,
3800 const u8 *feat_cap, size_t feat_cap_len)
5fefce27
KV		 3801{
3802 struct wpa_supplicant *wpa_s = ctx;
3803 u8 mac[ETH_ALEN];
3804 struct wpa_ssid *persistent_go, *stale, *s;
3805 int save_config = 0;
3806 struct wpa_supplicant *go_wpa_s;
88f3d7c9 3807 char feat_cap_str[256];
5fefce27
KV		 3808
3809 if (!dev)
3810 return;
3811
3812 os_memset(mac, 0, ETH_ALEN);
3813 if (!adv_mac)
3814 adv_mac = mac;
3815 if (!ses_mac)
3816 ses_mac = mac;
3817 if (!grp_mac)
3818 grp_mac = mac;
3819
88f3d7c9
MS		 3820 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3821 feat_cap, feat_cap_len);
3822
5fefce27
KV		 3823 if (prov_start) {
3824 if (session_info == NULL) {
3825 wpa_msg_global(wpa_s, MSG_INFO,
3826 P2P_EVENT_P2PS_PROVISION_START MACSTR
3827 " adv_id=%x conncap=%x"
3828 " adv_mac=" MACSTR
3829 " session=%x mac=" MACSTR
88f3d7c9 3830 " dev_passwd_id=%d%s",
5fefce27
KV		 3831 MAC2STR(dev), adv_id, conncap,
3832 MAC2STR(adv_mac),
3833 ses_id, MAC2STR(ses_mac),
88f3d7c9 3834 passwd_id, feat_cap_str);
5fefce27
KV		 3835 } else {
3836 wpa_msg_global(wpa_s, MSG_INFO,
3837 P2P_EVENT_P2PS_PROVISION_START MACSTR
3838 " adv_id=%x conncap=%x"
3839 " adv_mac=" MACSTR
3840 " session=%x mac=" MACSTR
88f3d7c9 3841 " dev_passwd_id=%d info='%s'%s",
5fefce27
KV		 3842 MAC2STR(dev), adv_id, conncap,
3843 MAC2STR(adv_mac),
3844 ses_id, MAC2STR(ses_mac),
88f3d7c9 3845 passwd_id, session_info, feat_cap_str);
5fefce27
KV		 3846 }
3847 return;
3848 }
3849
3850 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
3851 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3852
3853 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
3854 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3855 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3856
3857 if (persistent_go && !persistent_go->num_p2p_clients) {
3858 /* remove empty persistent GO */
3859 wpa_config_remove_network(wpa_s->conf,
3860 persistent_go->id);
3861 }
3862
3863 wpa_msg_global(wpa_s, MSG_INFO,
3864 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3865 " status=%d"
3866 " adv_id=%x adv_mac=" MACSTR
88f3d7c9 3867 " session=%x mac=" MACSTR "%s",
5fefce27
KV		 3868 MAC2STR(dev), status,
3869 adv_id, MAC2STR(adv_mac),
88f3d7c9 3870 ses_id, MAC2STR(ses_mac), feat_cap_str);
5fefce27
KV		 3871 return;
3872 }
3873
3874 /* Clean up stale persistent groups with this device */
3875 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
3876 persist_ssid_size);
1f14e2bf
AO		 3877
3878 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
2a098e36 3879 is_zero_ether_addr(grp_mac)) {
1f14e2bf
AO		 3880 wpa_dbg(wpa_s, MSG_ERROR,
3881 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
3882 return;
3883 }
3884
5fefce27
KV		 3885 for (;;) {
3886 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
3887 if (!stale)
3888 break;
3889
3890 if (s && s->ssid_len == stale->ssid_len &&
3891 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
3892 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
3893 break;
3894
3895 /* Remove stale persistent group */
3896 if (stale->mode != WPAS_MODE_P2P_GO ||
3897 stale->num_p2p_clients <= 1) {
3898 wpa_config_remove_network(wpa_s->conf, stale->id);
3899 } else {
3900 size_t i;
3901
3902 for (i = 0; i < stale->num_p2p_clients; i++) {
3903 if (os_memcmp(stale->p2p_client_list +
3904 i * ETH_ALEN,
3905 dev, ETH_ALEN) == 0) {
3906 os_memmove(stale->p2p_client_list +
3907 i * ETH_ALEN,
3908 stale->p2p_client_list +
3909 (i + 1) * ETH_ALEN,
3910 (stale->num_p2p_clients -
3911 i - 1) * ETH_ALEN);
3912 break;
3913 }
3914 }
3915 stale->num_p2p_clients--;
3916 }
3917 save_config = 1;
3918 }
3919
3920 if (save_config)
3921 p2p_config_write(wpa_s);
3922
3923 if (s) {
3924 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3925 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3926
3927 if (persistent_go && s != persistent_go &&
3928 !persistent_go->num_p2p_clients) {
3929 /* remove empty persistent GO */
3930 wpa_config_remove_network(wpa_s->conf,
3931 persistent_go->id);
3932 /* Save config */
3933 }
3934
3935 wpa_msg_global(wpa_s, MSG_INFO,
3936 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3937 " status=%d"
3938 " adv_id=%x adv_mac=" MACSTR
3939 " session=%x mac=" MACSTR
88f3d7c9 3940 " persist=%d%s",
5fefce27
KV		 3941 MAC2STR(dev), status,
3942 adv_id, MAC2STR(adv_mac),
88f3d7c9 3943 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
5fefce27
KV		 3944 return;
3945 }
3946
3947 if (conncap == P2PS_SETUP_GROUP_OWNER) {
23bb9828
AO		 3948 /*
3949 * We need to copy the interface name. Simply saving a
3950 * pointer isn't enough, since if we use pending_interface_name
3951 * it will be overwritten when the group is added.
3952 */
3953 char go_ifname[100];
3954
3955 go_ifname[0] = '\0';
5fefce27
KV		 3956 if (!go_wpa_s) {
3957 wpa_s->global->pending_p2ps_group = 1;
3958
a698d6c8 3959 if (!wpas_p2p_create_iface(wpa_s))
23bb9828
AO		 3960 os_memcpy(go_ifname, wpa_s->ifname,
3961 sizeof(go_ifname));
5fefce27 3962 else if (wpa_s->pending_interface_name[0])
23bb9828
AO		 3963 os_memcpy(go_ifname,
3964 wpa_s->pending_interface_name,
3965 sizeof(go_ifname));
5fefce27 3966
23bb9828 3967 if (!go_ifname[0]) {
5fefce27
KV		 3968 wpas_p2ps_prov_complete(
3969 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
3970 dev, adv_mac, ses_mac,
2a098e36 3971 grp_mac, adv_id, ses_id, 0, 0,
88f3d7c9 3972 NULL, 0, 0, 0, NULL, NULL, 0);
5fefce27
KV		 3973 return;
3974 }
3975
3976 /* If PD Resp complete, start up the GO */
3977 if (response_done && persistent_go) {
3978 wpas_p2p_group_add_persistent(
3979 wpa_s, persistent_go,
3980 0, 0, 0, 0, 0, NULL,
3981 persistent_go->mode ==
3982 WPAS_MODE_P2P_GO ?
3983 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
dfaf11d6 3984 0, 0);
5fefce27
KV		 3985 } else if (response_done) {
3986 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
3987 }
306aaf49
KV		 3988
3989 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
b9da88d6
AO		 3990 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
3991 ETH_ALEN);
3992 wpa_s->p2ps_method_config_any = 1;
306aaf49 3993 }
5fefce27 3994 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
23bb9828
AO		 3995 os_memcpy(go_ifname, go_wpa_s->ifname,
3996 sizeof(go_ifname));
5fefce27 3997
b9da88d6
AO		 3998 if (is_zero_ether_addr(grp_mac)) {
3999 wpa_dbg(go_wpa_s, MSG_DEBUG,
4000 "P2P: Setting PIN-1 for ANY");
4001 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
4002 "12345670", NULL, 0,
4003 0);
4004 } else {
4005 wpa_dbg(go_wpa_s, MSG_DEBUG,
4006 "P2P: Setting PIN-1 for " MACSTR,
4007 MAC2STR(grp_mac));
4008 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
4009 "12345670", NULL, 0,
4010 0);
4011 }
306aaf49 4012
b9da88d6
AO		 4013 os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
4014 wpa_s->p2ps_method_config_any = 1;
5fefce27
KV		 4015 }
4016
4017 wpa_msg_global(wpa_s, MSG_INFO,
4018 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4019 " status=%d conncap=%x"
4020 " adv_id=%x adv_mac=" MACSTR
4021 " session=%x mac=" MACSTR
88f3d7c9 4022 " dev_passwd_id=%d go=%s%s",
5fefce27
KV		 4023 MAC2STR(dev), status, conncap,
4024 adv_id, MAC2STR(adv_mac),
4025 ses_id, MAC2STR(ses_mac),
88f3d7c9 4026 passwd_id, go_ifname, feat_cap_str);
5fefce27
KV		 4027 return;
4028 }
4029
4030 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4031 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4032
4033 if (persistent_go && !persistent_go->num_p2p_clients) {
4034 /* remove empty persistent GO */
4035 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
4036 }
4037
4038 if (conncap == P2PS_SETUP_CLIENT) {
4039 wpa_msg_global(wpa_s, MSG_INFO,
4040 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4041 " status=%d conncap=%x"
4042 " adv_id=%x adv_mac=" MACSTR
4043 " session=%x mac=" MACSTR
88f3d7c9 4044 " dev_passwd_id=%d join=" MACSTR "%s",
5fefce27
KV		 4045 MAC2STR(dev), status, conncap,
4046 adv_id, MAC2STR(adv_mac),
4047 ses_id, MAC2STR(ses_mac),
88f3d7c9 4048 passwd_id, MAC2STR(grp_mac), feat_cap_str);
5fefce27
KV		 4049 } else {
4050 wpa_msg_global(wpa_s, MSG_INFO,
4051 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4052 " status=%d conncap=%x"
4053 " adv_id=%x adv_mac=" MACSTR
4054 " session=%x mac=" MACSTR
88f3d7c9 4055 " dev_passwd_id=%d%s",
5fefce27
KV		 4056 MAC2STR(dev), status, conncap,
4057 adv_id, MAC2STR(adv_mac),
4058 ses_id, MAC2STR(ses_mac),
88f3d7c9 4059 passwd_id, feat_cap_str);
5fefce27
KV		 4060 }
4061}
4062
4063
0f1034e3
SD		 4064static int _wpas_p2p_in_progress(void *ctx)
4065{
4066 struct wpa_supplicant *wpa_s = ctx;
4067 return wpas_p2p_in_progress(wpa_s);
4068}
4069
4070
9a58e521
KV		 4071static int wpas_prov_disc_resp_cb(void *ctx)
4072{
4073 struct wpa_supplicant *wpa_s = ctx;
4074 struct wpa_ssid *persistent_go;
4075
4076 if (!wpa_s->global->pending_p2ps_group)
4077 return 0;
4078
4079 wpa_s->global->pending_p2ps_group = 0;
4080
4081 if (wpas_p2p_get_go_group(wpa_s))
4082 return 0;
4083 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4084
4085 if (persistent_go) {
4086 wpas_p2p_group_add_persistent(
4087 wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
4088 persistent_go->mode == WPAS_MODE_P2P_GO ?
dfaf11d6 4089 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
9a58e521
KV		 4090 } else {
4091 wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
4092 }
4093
4094 return 1;
4095}
4096
4097
fc71f7d9
AK		 4098static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4099 unsigned int *len,
4100 unsigned int *freq_list)
4101{
4102 struct wpa_supplicant *wpa_s = ctx;
4103
4104 return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4105 WPA_IF_P2P_CLIENT, len, freq_list);
4106}
4107
4108
b22128ef
JM		 4109/**
4110 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4111 * @global: Pointer to global data from wpa_supplicant_init()
4112 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4113 * Returns: 0 on success, -1 on failure
4114 */
4115int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4116{
4117 struct p2p_config p2p;
f95cac27 4118 int i;
b22128ef 4119
f2b3f4de
SS		 4120 if (wpa_s->conf->p2p_disabled)
4121 return 0;
4122
b22128ef
JM		 4123 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4124 return 0;
4125
b22128ef
JM		 4126 if (global->p2p)
4127 return 0;
4128
4129 os_memset(&p2p, 0, sizeof(p2p));
b22128ef 4130 p2p.cb_ctx = wpa_s;
ed496f13 4131 p2p.debug_print = wpas_p2p_debug_print;
b22128ef
JM		 4132 p2p.p2p_scan = wpas_p2p_scan;
4133 p2p.send_action = wpas_send_action;
4134 p2p.send_action_done = wpas_send_action_done;
4135 p2p.go_neg_completed = wpas_go_neg_completed;
4136 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4137 p2p.dev_found = wpas_dev_found;
56eeb8f2 4138 p2p.dev_lost = wpas_dev_lost;
710ae9ac 4139 p2p.find_stopped = wpas_find_stopped;
b22128ef
JM		 4140 p2p.start_listen = wpas_start_listen;
4141 p2p.stop_listen = wpas_stop_listen;
4142 p2p.send_probe_resp = wpas_send_probe_resp;
4143 p2p.sd_request = wpas_sd_request;
4144 p2p.sd_response = wpas_sd_response;
4145 p2p.prov_disc_req = wpas_prov_disc_req;
4146 p2p.prov_disc_resp = wpas_prov_disc_resp;
dd8a7e05 4147 p2p.prov_disc_fail = wpas_prov_disc_fail;
b22128ef
JM		 4148 p2p.invitation_process = wpas_invitation_process;
4149 p2p.invitation_received = wpas_invitation_received;
4150 p2p.invitation_result = wpas_invitation_result;
4151 p2p.get_noa = wpas_get_noa;
b1aebbc4 4152 p2p.go_connected = wpas_go_connected;
c64e3a08 4153 p2p.presence_resp = wpas_presence_resp;
a2d63657 4154 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
0f1034e3 4155 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
369678ad
KV		 4156 p2p.get_persistent_group = wpas_get_persistent_group;
4157 p2p.get_go_info = wpas_get_go_info;
895d94de 4158 p2p.remove_stale_groups = wpas_remove_stale_groups;
5fefce27 4159 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
9a58e521 4160 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
1300cc8e 4161 p2p.p2ps_group_capability = p2ps_group_capability;
fc71f7d9 4162 p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
b22128ef
JM		 4163
4164 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
d7e70476 4165 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
b22128ef 4166 p2p.dev_name = wpa_s->conf->device_name;
b6e01800
JM		 4167 p2p.manufacturer = wpa_s->conf->manufacturer;
4168 p2p.model_name = wpa_s->conf->model_name;
4169 p2p.model_number = wpa_s->conf->model_number;
4170 p2p.serial_number = wpa_s->conf->serial_number;
4171 if (wpa_s->wps) {
4172 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4173 p2p.config_methods = wpa_s->wps->config_methods;
4174 }
b22128ef 4175
1595eb93
AM		 4176 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4177 wpa_printf(MSG_ERROR,
4178 "P2P: Failed to configure supported channel list");
4179 return -1;
4180 }
4181
b22128ef
JM		 4182 if (wpa_s->conf->p2p_listen_reg_class &&
4183 wpa_s->conf->p2p_listen_channel) {
4184 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4185 p2p.channel = wpa_s->conf->p2p_listen_channel;
e3bd6e9d 4186 p2p.channel_forced = 1;
b22128ef 4187 } else {
b22128ef
JM		 4188 /*
4189 * Pick one of the social channels randomly as the listen
4190 * channel.
4191 */
1595eb93
AM		 4192 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4193 &p2p.channel) != 0) {
5678a2d8
JM		 4194 wpa_printf(MSG_INFO,
4195 "P2P: No social channels supported by the driver - do not enable P2P");
4196 return 0;
1595eb93 4197 }
e3bd6e9d 4198 p2p.channel_forced = 0;
b22128ef 4199 }
1595eb93
AM		 4200 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4201 p2p.reg_class, p2p.channel);
b22128ef
JM		 4202
4203 if (wpa_s->conf->p2p_oper_reg_class &&
4204 wpa_s->conf->p2p_oper_channel) {
4205 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4206 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 4207 p2p.cfg_op_channel = 1;
4208 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4209 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4210
b22128ef 4211 } else {
b22128ef 4212 /*
1595eb93
AM		 4213 * Use random operation channel from 2.4 GHz band social
4214 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4215 * other preference is indicated.
b22128ef 4216 */
1595eb93
AM		 4217 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4218 &p2p.op_channel) != 0) {
4219 wpa_printf(MSG_ERROR,
4220 "P2P: Failed to select random social channel as operation channel");
df2508d7 4221 return -1;
1595eb93 4222 }
7cfc4ac3
AGS		 4223 p2p.cfg_op_channel = 0;
4224 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4225 "%d:%d", p2p.op_reg_class, p2p.op_channel);
b22128ef 4226 }
010b5f9b
YW		 4227
4228 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4229 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4230 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4231 }
4232
b22128ef
JM		 4233 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4234 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4235 p2p.country[2] = 0x04;
4236 } else
aaca6505 4237 os_memcpy(p2p.country, "XX\x04", 3);
b22128ef 4238
2f646b6e
JB		 4239 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4240 WPS_DEV_TYPE_LEN);
b22128ef 4241
2f646b6e
JB		 4242 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4243 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4244 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
b22128ef
JM		 4245
4246 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4247 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4248
de979d8f 4249 p2p.max_peers = 100;
b22128ef
JM		 4250
4251 if (wpa_s->conf->p2p_ssid_postfix) {
4252 p2p.ssid_postfix_len =
4253 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4254 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4255 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4256 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4257 p2p.ssid_postfix_len);
4258 }
4259
0f66abd2
SS		 4260 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4261
96beff11
JM		 4262 p2p.max_listen = wpa_s->max_remain_on_chan;
4263
1b928f96
JM		 4264 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4265 wpa_s->conf->p2p_passphrase_len <= 63)
4266 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4267 else
4268 p2p.passphrase_len = 8;
4269
b22128ef
JM		 4270 global->p2p = p2p_init(&p2p);
4271 if (global->p2p == NULL)
4272 return -1;
ab28911d 4273 global->p2p_init_wpa_s = wpa_s;
b22128ef 4274
f95cac27
JMB		 4275 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4276 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4277 continue;
4278 p2p_add_wps_vendor_extension(
4279 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4280 }
4281
556b30da
JM		 4282 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4283
b22128ef
JM		 4284 return 0;
4285}
4286
4287
4288/**
4289 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4290 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4291 *
4292 * This function deinitialize per-interface P2P data.
4293 */
4294void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4295{
4296 if (wpa_s->driver && wpa_s->drv_priv)
4297 wpa_drv_probe_req_report(wpa_s, 0);
ec437d9e
JJ		 4298
4299 if (wpa_s->go_params) {
4300 /* Clear any stored provisioning info */
4301 p2p_clear_provisioning_info(
4302 wpa_s->global->p2p,
10531d21 4303 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 4304 }
4305
b22128ef
JM		 4306 os_free(wpa_s->go_params);
4307 wpa_s->go_params = NULL;
fb2ac53d 4308 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
b22128ef 4309 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 4310 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 4311 wpa_s->p2p_long_listen = 0;
4312 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3071e181 4313 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
b22128ef 4314 wpas_p2p_remove_pending_group_interface(wpa_s);
8567866d 4315 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
e1d1c8e2 4316 wpas_p2p_listen_work_done(wpa_s);
e05e1308
JM		 4317 if (wpa_s->p2p_send_action_work) {
4318 os_free(wpa_s->p2p_send_action_work->ctx);
4319 radio_work_done(wpa_s->p2p_send_action_work);
4320 wpa_s->p2p_send_action_work = NULL;
4321 }
4322 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
b22128ef 4323
db6ae69e
JM		 4324 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4325 wpa_s->p2p_oob_dev_pw = NULL;
4326
20beb96f
IP		 4327 os_free(wpa_s->p2p_group_common_freqs);
4328 wpa_s->p2p_group_common_freqs = NULL;
4329 wpa_s->p2p_group_common_freqs_num = 0;
4330
b22128ef
JM		 4331 /* TODO: remove group interface from the driver if this wpa_s instance
4332 * is on top of a P2P group interface */
4333}
4334
4335
4336/**
4337 * wpas_p2p_deinit_global - Deinitialize global P2P module
4338 * @global: Pointer to global data from wpa_supplicant_init()
4339 *
4340 * This function deinitializes the global (per device) P2P module.
4341 */
bd10d938 4342static void wpas_p2p_deinit_global(struct wpa_global *global)
b22128ef
JM		 4343{
4344 struct wpa_supplicant *wpa_s, *tmp;
b22128ef 4345
bf428a73 4346 wpa_s = global->ifaces;
ee285df4
EA		 4347
4348 wpas_p2p_service_flush(global->p2p_init_wpa_s);
bf428a73 4349
b22128ef 4350 /* Remove remaining P2P group interfaces */
b22128ef
JM		 4351 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4352 wpa_s = wpa_s->next;
4353 while (wpa_s) {
b22128ef
JM		 4354 tmp = global->ifaces;
4355 while (tmp &&
4356 (tmp == wpa_s ||
4357 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4358 tmp = tmp->next;
4359 }
4360 if (tmp == NULL)
4361 break;
103b8f4d
NS		 4362 /* Disconnect from the P2P group and deinit the interface */
4363 wpas_p2p_disconnect(tmp);
b22128ef
JM		 4364 }
4365
743ef799
JM		 4366 /*
4367 * Deinit GO data on any possibly remaining interface (if main
4368 * interface is used as GO).
4369 */
4370 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4371 if (wpa_s->ap_iface)
4372 wpas_p2p_group_deinit(wpa_s);
4373 }
4374
b22128ef
JM		 4375 p2p_deinit(global->p2p);
4376 global->p2p = NULL;
ab28911d 4377 global->p2p_init_wpa_s = NULL;
b22128ef
JM		 4378}
4379
4380
4381static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4382{
bb4028f1
AS		 4383 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4384 wpa_s->conf->p2p_no_group_iface)
d76cd41a 4385 return 0; /* separate interface disabled per configuration */
971e357f
JM		 4386 if (wpa_s->drv_flags &
4387 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4388 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
b22128ef
JM		 4389 return 1; /* P2P group requires a new interface in every case
4390 */
4391 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4392 return 0; /* driver does not support concurrent operations */
4393 if (wpa_s->global->ifaces->next)
4394 return 1; /* more that one interface already in use */
4395 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4396 return 1; /* this interface is already in use */
4397 return 0;
4398}
4399
4400
4401static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4402 const u8 *peer_addr,
4403 enum p2p_wps_method wps_method,
4404 int go_intent, const u8 *own_interface_addr,
23c84252 4405 unsigned int force_freq, int persistent_group,
04a3e69d 4406 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 4407{
acc247b2
JM		 4408 if (persistent_group && wpa_s->conf->persistent_reconnect)
4409 persistent_group = 2;
4410
4f219667
JM		 4411 /*
4412 * Increase GO config timeout if HT40 is used since it takes some time
4413 * to scan channels for coex purposes before the BSS can be started.
4414 */
4415 p2p_set_config_timeout(wpa_s->global->p2p,
4416 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4417
b22128ef
JM		 4418 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4419 go_intent, own_interface_addr, force_freq,
23c84252 4420 persistent_group, ssid ? ssid->ssid : NULL,
3bc462cb 4421 ssid ? ssid->ssid_len : 0,
db6ae69e
JM		 4422 wpa_s->p2p_pd_before_go_neg, pref_freq,
4423 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4424 0);
b22128ef
JM		 4425}
4426
4427
4428static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4429 const u8 *peer_addr,
4430 enum p2p_wps_method wps_method,
4431 int go_intent, const u8 *own_interface_addr,
23c84252 4432 unsigned int force_freq, int persistent_group,
04a3e69d 4433 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 4434{
acc247b2
JM		 4435 if (persistent_group && wpa_s->conf->persistent_reconnect)
4436 persistent_group = 2;
4437
b22128ef
JM		 4438 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4439 go_intent, own_interface_addr, force_freq,
23c84252 4440 persistent_group, ssid ? ssid->ssid : NULL,
db6ae69e
JM		 4441 ssid ? ssid->ssid_len : 0, pref_freq,
4442 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4443 0);
b22128ef
JM		 4444}
4445
4446
9b1ab931
JM		 4447static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4448{
4449 wpa_s->p2p_join_scan_count++;
4450 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4451 wpa_s->p2p_join_scan_count);
4452 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4453 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4454 " for join operationg - stop join attempt",
4455 MAC2STR(wpa_s->pending_join_iface_addr));
4456 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
0918c4bf
JM		 4457 if (wpa_s->p2p_auto_pd) {
4458 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 4459 wpa_msg_global(wpa_s, MSG_INFO,
4460 P2P_EVENT_PROV_DISC_FAILURE
4461 " p2p_dev_addr=" MACSTR " status=N/A",
4462 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 4463 return;
4464 }
92c4465b
JM		 4465 wpa_msg_global(wpa_s->parent, MSG_INFO,
4466 P2P_EVENT_GROUP_FORMATION_FAILURE);
2a95fac9 4467 wpas_notify_p2p_group_formation_failure(wpa_s, "");
9b1ab931
JM		 4468 }
4469}
4470
4471
4b156206
JM		 4472static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4473{
a0c90bb0
IP		 4474 int res;
4475 unsigned int num, i;
4476 struct wpa_used_freq_data *freqs;
4b156206 4477
0d08efa4
IP		 4478 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4479 /* Multiple channels are supported and not all are in use */
4b156206 4480 return 0;
0d08efa4 4481 }
4b156206 4482
a0c90bb0
IP		 4483 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4484 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 4485 if (!freqs)
4486 return 1;
86ae2e8a 4487
0d08efa4
IP		 4488 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4489 wpa_s->num_multichan_concurrent);
4b156206 4490
0d08efa4 4491 for (i = 0; i < num; i++) {
a0c90bb0 4492 if (freqs[i].freq == freq) {
0d08efa4
IP		 4493 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4494 freq);
4495 res = 0;
4496 goto exit_free;
4497 }
4b156206
JM		 4498 }
4499
a0c90bb0 4500 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
0d08efa4
IP		 4501 res = 1;
4502
4503exit_free:
4504 os_free(freqs);
4505 return res;
4b156206
JM		 4506}
4507
4508
b31be3a0
JM		 4509static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4510 const u8 *peer_dev_addr)
4511{
4512 struct wpa_bss *bss;
4513 int updated;
4514
4515 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4516 if (bss == NULL)
aa9bb764 4517 return -1;
b31be3a0
JM		 4518 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4519 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4520 "last scan");
4521 return 0;
4522 }
4523
acb69cec
JB		 4524 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4525 &bss->last_update);
b31be3a0
JM		 4526 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4527 "%ld.%06ld (%supdated in last scan)",
4528 bss->last_update.sec, bss->last_update.usec,
4529 updated ? "": "not ");
4530
4531 return updated;
4532}
4533
4534
ef922c4a
JM		 4535static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4536 struct wpa_scan_results *scan_res)
b22128ef 4537{
c48414af 4538 struct wpa_bss *bss = NULL;
f8d0131a 4539 int freq;
54960629 4540 u8 iface_addr[ETH_ALEN];
b22128ef 4541
ef922c4a 4542 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 4543
ef922c4a
JM		 4544 if (wpa_s->global->p2p_disabled)
4545 return;
b22128ef 4546
b31be3a0
JM		 4547 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4548 scan_res ? (int) scan_res->num : -1,
4549 wpa_s->p2p_auto_join ? "auto_" : "");
ef922c4a
JM		 4550
4551 if (scan_res)
4552 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 4553
0918c4bf
JM		 4554 if (wpa_s->p2p_auto_pd) {
4555 int join = wpas_p2p_peer_go(wpa_s,
4556 wpa_s->pending_join_dev_addr);
84286a22
SDU		 4557 if (join == 0 &&
4558 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4559 wpa_s->auto_pd_scan_retry++;
702621e6
JM		 4560 bss = wpa_bss_get_bssid_latest(
4561 wpa_s, wpa_s->pending_join_dev_addr);
84286a22
SDU		 4562 if (bss) {
4563 freq = bss->freq;
4564 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4565 "the peer " MACSTR " at %d MHz",
4566 wpa_s->auto_pd_scan_retry,
4567 MAC2STR(wpa_s->
4568 pending_join_dev_addr),
4569 freq);
c48414af 4570 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
84286a22
SDU		 4571 return;
4572 }
4573 }
4574
aa9bb764
JM		 4575 if (join < 0)
4576 join = 0;
84286a22 4577
0918c4bf
JM		 4578 wpa_s->p2p_auto_pd = 0;
4579 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4580 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4581 MAC2STR(wpa_s->pending_join_dev_addr), join);
4582 if (p2p_prov_disc_req(wpa_s->global->p2p,
369678ad 4583 wpa_s->pending_join_dev_addr, NULL,
0918c4bf 4584 wpa_s->pending_pd_config_methods, join,
67527166 4585 0, wpa_s->user_initiated_pd) < 0) {
0918c4bf 4586 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 4587 wpa_msg_global(wpa_s, MSG_INFO,
4588 P2P_EVENT_PROV_DISC_FAILURE
4589 " p2p_dev_addr=" MACSTR " status=N/A",
4590 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 4591 }
4592 return;
4593 }
4594
b31be3a0 4595 if (wpa_s->p2p_auto_join) {
aa9bb764
JM		 4596 int join = wpas_p2p_peer_go(wpa_s,
4597 wpa_s->pending_join_dev_addr);
4598 if (join < 0) {
b31be3a0
JM		 4599 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4600 "running a GO -> use GO Negotiation");
6b005121
JM		 4601 wpa_msg_global(wpa_s->parent, MSG_INFO,
4602 P2P_EVENT_FALLBACK_TO_GO_NEG
4603 "reason=peer-not-running-GO");
b31be3a0
JM		 4604 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4605 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4606 wpa_s->p2p_persistent_group, 0, 0, 0,
4607 wpa_s->p2p_go_intent,
23c84252 4608 wpa_s->p2p_connect_freq,
3bc462cb 4609 wpa_s->p2p_persistent_id,
e2308e4b 4610 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 4611 wpa_s->p2p_go_ht40,
4612 wpa_s->p2p_go_vht);
b31be3a0
JM		 4613 return;
4614 }
4615
aa9bb764
JM		 4616 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4617 "try to join the group", join ? "" :
4618 " in older scan");
6b005121
JM		 4619 if (!join) {
4620 wpa_msg_global(wpa_s->parent, MSG_INFO,
4621 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
aa9bb764 4622 wpa_s->p2p_fallback_to_go_neg = 1;
6b005121 4623 }
b31be3a0
JM		 4624 }
4625
f8d0131a
JM		 4626 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4627 wpa_s->pending_join_iface_addr);
54960629
AL		 4628 if (freq < 0 &&
4629 p2p_get_interface_addr(wpa_s->global->p2p,
4630 wpa_s->pending_join_dev_addr,
4631 iface_addr) == 0 &&
4e536751
CM		 4632 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4633 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
54960629
AL		 4634 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4635 "address for join from " MACSTR " to " MACSTR
4636 " based on newly discovered P2P peer entry",
4637 MAC2STR(wpa_s->pending_join_iface_addr),
4638 MAC2STR(iface_addr));
4639 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4640 ETH_ALEN);
4641
4642 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4643 wpa_s->pending_join_iface_addr);
4644 }
f8d0131a
JM		 4645 if (freq >= 0) {
4646 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4647 "from P2P peer table: %d MHz", freq);
4648 }
c48414af
JM		 4649 if (wpa_s->p2p_join_ssid_len) {
4650 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4651 MACSTR " and SSID %s",
4652 MAC2STR(wpa_s->pending_join_iface_addr),
4653 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4654 wpa_s->p2p_join_ssid_len));
4655 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4656 wpa_s->p2p_join_ssid,
4657 wpa_s->p2p_join_ssid_len);
4658 }
4659 if (!bss) {
4660 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4661 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4662 bss = wpa_bss_get_bssid_latest(wpa_s,
4663 wpa_s->pending_join_iface_addr);
4664 }
b22128ef 4665 if (bss) {
e6012e83
JM		 4666 u8 dev_addr[ETH_ALEN];
4667
f8d0131a
JM		 4668 freq = bss->freq;
4669 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
d2858883
JM		 4670 "from BSS table: %d MHz (SSID %s)", freq,
4671 wpa_ssid_txt(bss->ssid, bss->ssid_len));
e6012e83
JM		 4672 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4673 dev_addr) == 0 &&
4674 os_memcmp(wpa_s->pending_join_dev_addr,
4675 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4676 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4677 ETH_ALEN) != 0) {
4678 wpa_printf(MSG_DEBUG,
4679 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4680 MAC2STR(dev_addr),
4681 MAC2STR(wpa_s->pending_join_dev_addr));
4682 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4683 ETH_ALEN);
4684 }
f8d0131a
JM		 4685 }
4686 if (freq > 0) {
b22128ef
JM		 4687 u16 method;
4688
4b156206 4689 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
92c4465b
JM		 4690 wpa_msg_global(wpa_s->parent, MSG_INFO,
4691 P2P_EVENT_GROUP_FORMATION_FAILURE
4692 "reason=FREQ_CONFLICT");
2a95fac9
NC		 4693 wpas_notify_p2p_group_formation_failure(
4694 wpa_s, "FREQ_CONFLICT");
4b156206
JM		 4695 return;
4696 }
4697
b22128ef
JM		 4698 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4699 "prior to joining an existing group (GO " MACSTR
4700 " freq=%u MHz)",
f8d0131a 4701 MAC2STR(wpa_s->pending_join_dev_addr), freq);
b22128ef
JM		 4702 wpa_s->pending_pd_before_join = 1;
4703
ef922c4a 4704 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 4705 case WPS_PIN_DISPLAY:
4706 method = WPS_CONFIG_KEYPAD;
4707 break;
4708 case WPS_PIN_KEYPAD:
4709 method = WPS_CONFIG_DISPLAY;
4710 break;
4711 case WPS_PBC:
4712 method = WPS_CONFIG_PUSHBUTTON;
4713 break;
d494ca0b
AO		 4714 case WPS_P2PS:
4715 method = WPS_CONFIG_P2PS;
4716 break;
b22128ef
JM		 4717 default:
4718 method = 0;
4719 break;
4720 }
4721
ec437d9e
JJ		 4722 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4723 wpa_s->pending_join_dev_addr) ==
4724 method)) {
4725 /*
4726 * We have already performed provision discovery for
4727 * joining the group. Proceed directly to join
4728 * operation without duplicated provision discovery. */
e3a0706b 4729 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
ec437d9e
JJ		 4730 "with " MACSTR " already done - proceed to "
4731 "join",
4732 MAC2STR(wpa_s->pending_join_dev_addr));
4733 wpa_s->pending_pd_before_join = 0;
4734 goto start;
4735 }
4736
ef922c4a 4737 if (p2p_prov_disc_req(wpa_s->global->p2p,
369678ad
KV		 4738 wpa_s->pending_join_dev_addr,
4739 NULL, method, 1,
67527166 4740 freq, wpa_s->user_initiated_pd) < 0) {
b22128ef
JM		 4741 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4742 "Discovery Request before joining an "
4743 "existing group");
4744 wpa_s->pending_pd_before_join = 0;
4745 goto start;
4746 }
ef922c4a 4747 return;
b22128ef
JM		 4748 }
4749
9b1ab931
JM		 4750 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4751 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4752 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4753 wpas_p2p_check_join_scan_limit(wpa_s);
4754 return;
b22128ef
JM		 4755
4756start:
4757 /* Start join operation immediately */
23318bea 4758 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
ef922c4a
JM		 4759}
4760
4761
c48414af
JM		 4762static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4763 const u8 *ssid, size_t ssid_len)
ef922c4a 4764{
ef922c4a
JM		 4765 int ret;
4766 struct wpa_driver_scan_params params;
4767 struct wpabuf *wps_ie, *ies;
206e1f42 4768 size_t ielen;
84286a22 4769 int freqs[2] = { 0, 0 };
ef922c4a
JM		 4770
4771 os_memset(&params, 0, sizeof(params));
4772
4773 /* P2P Wildcard SSID */
4774 params.num_ssids = 1;
c48414af
JM		 4775 if (ssid && ssid_len) {
4776 params.ssids[0].ssid = ssid;
4777 params.ssids[0].ssid_len = ssid_len;
4778 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4779 wpa_s->p2p_join_ssid_len = ssid_len;
4780 } else {
4781 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4782 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4783 wpa_s->p2p_join_ssid_len = 0;
4784 }
ef922c4a
JM		 4785
4786 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 4787 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4788 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4789 NULL);
ef922c4a
JM		 4790 if (wps_ie == NULL) {
4791 wpas_p2p_scan_res_join(wpa_s, NULL);
4792 return;
4793 }
4794
206e1f42
JM		 4795 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4796 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
ef922c4a
JM		 4797 if (ies == NULL) {
4798 wpabuf_free(wps_ie);
4799 wpas_p2p_scan_res_join(wpa_s, NULL);
4800 return;
4801 }
4802 wpabuf_put_buf(ies, wps_ie);
4803 wpabuf_free(wps_ie);
4804
6d92fa6e 4805 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
ef922c4a 4806
47185fc7 4807 params.p2p_probe = 1;
ef922c4a
JM		 4808 params.extra_ies = wpabuf_head(ies);
4809 params.extra_ies_len = wpabuf_len(ies);
37b4198a
JJ		 4810
4811 if (!freq) {
4812 int oper_freq;
4813 /*
4814 * If freq is not provided, check the operating freq of the GO
4815 * and use a single channel scan on if possible.
4816 */
4817 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4818 wpa_s->pending_join_iface_addr);
4819 if (oper_freq > 0)
4820 freq = oper_freq;
4821 }
84286a22
SDU		 4822 if (freq > 0) {
4823 freqs[0] = freq;
4824 params.freqs = freqs;
4825 }
ef922c4a
JM		 4826
4827 /*
4828 * Run a scan to update BSS table and start Provision Discovery once
4829 * the new scan results become available.
4830 */
17fbb751 4831 ret = wpa_drv_scan(wpa_s, &params);
4342326f 4832 if (!ret) {
acb69cec 4833 os_get_reltime(&wpa_s->scan_trigger_time);
205e6474 4834 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
a5f40eff 4835 wpa_s->own_scan_requested = 1;
4342326f 4836 }
ef922c4a
JM		 4837
4838 wpabuf_free(ies);
4839
4840 if (ret) {
4841 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4842 "try again later");
4843 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4844 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
9b1ab931 4845 wpas_p2p_check_join_scan_limit(wpa_s);
ef922c4a
JM		 4846 }
4847}
4848
4849
84286a22
SDU		 4850static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4851{
4852 struct wpa_supplicant *wpa_s = eloop_ctx;
c48414af 4853 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
84286a22
SDU		 4854}
4855
4856
ef922c4a 4857static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0 4858 const u8 *dev_addr, enum p2p_wps_method wps_method,
23318bea
JM		 4859 int auto_join, int op_freq,
4860 const u8 *ssid, size_t ssid_len)
ef922c4a
JM		 4861{
4862 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
23318bea
JM		 4863 MACSTR " dev " MACSTR " op_freq=%d)%s",
4864 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
b31be3a0 4865 auto_join ? " (auto_join)" : "");
c48414af
JM		 4866 if (ssid && ssid_len) {
4867 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4868 wpa_ssid_txt(ssid, ssid_len));
4869 }
ef922c4a 4870
0918c4bf 4871 wpa_s->p2p_auto_pd = 0;
b31be3a0 4872 wpa_s->p2p_auto_join = !!auto_join;
ef922c4a
JM		 4873 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4874 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4875 wpa_s->pending_join_wps_method = wps_method;
4876
4877 /* Make sure we are not running find during connection establishment */
4878 wpas_p2p_stop_find(wpa_s);
4879
9b1ab931 4880 wpa_s->p2p_join_scan_count = 0;
23318bea 4881 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
ef922c4a 4882 return 0;
b22128ef
JM		 4883}
4884
4885
23318bea
JM		 4886static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4887 const u8 *ssid, size_t ssid_len)
b22128ef
JM		 4888{
4889 struct wpa_supplicant *group;
4890 struct p2p_go_neg_results res;
8e64f258 4891 struct wpa_bss *bss;
b22128ef
JM		 4892
4893 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4894 if (group == NULL)
4895 return -1;
3c5126a4 4896 if (group != wpa_s) {
b22128ef
JM		 4897 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4898 sizeof(group->p2p_pin));
3c5126a4 4899 group->p2p_wps_method = wpa_s->p2p_wps_method;
2b79164f
JM		 4900 } else {
4901 /*
4902 * Need to mark the current interface for p2p_group_formation
4903 * when a separate group interface is not used. This is needed
4904 * to allow p2p_cancel stop a pending p2p_connect-join.
4905 * wpas_p2p_init_group_interface() addresses this for the case
4906 * where a separate group interface is used.
4907 */
4908 wpa_s->global->p2p_group_formation = wpa_s;
3c5126a4 4909 }
b22128ef
JM		 4910
4911 group->p2p_in_provisioning = 1;
aa9bb764 4912 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
b22128ef
JM		 4913
4914 os_memset(&res, 0, sizeof(res));
23318bea 4915 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
b22128ef
JM		 4916 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4917 ETH_ALEN);
4918 res.wps_method = wpa_s->pending_join_wps_method;
23318bea
JM		 4919 if (freq && ssid && ssid_len) {
4920 res.freq = freq;
4921 res.ssid_len = ssid_len;
4922 os_memcpy(res.ssid, ssid, ssid_len);
4923 } else {
4924 bss = wpa_bss_get_bssid_latest(wpa_s,
4925 wpa_s->pending_join_iface_addr);
4926 if (bss) {
4927 res.freq = bss->freq;
4928 res.ssid_len = bss->ssid_len;
4929 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4930 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4931 bss->freq,
4932 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4933 }
8e64f258
JM		 4934 }
4935
e91829f9
JM		 4936 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4937 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4938 "starting client");
4939 wpa_drv_cancel_remain_on_channel(wpa_s);
4940 wpa_s->off_channel_freq = 0;
4941 wpa_s->roc_waiting_drv_freq = 0;
4942 }
b22128ef
JM		 4943 wpas_start_wps_enrollee(group, &res);
4944
3094d483
JM		 4945 /*
4946 * Allow a longer timeout for join-a-running-group than normal 15
4947 * second group formation timeout since the GO may not have authorized
4948 * our connection yet.
4949 */
4950 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4951 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4952 wpa_s, NULL);
4953
b22128ef
JM		 4954 return 0;
4955}
4956
4957
5de4b721 4958static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
370017d9
AK		 4959 int *force_freq, int *pref_freq, int go,
4960 unsigned int *pref_freq_list,
4961 unsigned int *num_pref_freq)
5de4b721 4962{
a0c90bb0
IP		 4963 struct wpa_used_freq_data *freqs;
4964 int res, best_freq, num_unused;
370017d9
AK		 4965 unsigned int freq_in_use = 0, num, i, max_pref_freq;
4966
4967 max_pref_freq = *num_pref_freq;
4968 *num_pref_freq = 0;
0d08efa4 4969
a0c90bb0
IP		 4970 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4971 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 4972 if (!freqs)
4973 return -1;
4974
a0c90bb0
IP		 4975 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4976 wpa_s->num_multichan_concurrent);
4977
4978 /*
4979 * It is possible that the total number of used frequencies is bigger
4980 * than the number of frequencies used for P2P, so get the system wide
4981 * number of unused frequencies.
4982 */
4983 num_unused = wpas_p2p_num_unused_channels(wpa_s);
4984
99d7c762 4985 wpa_printf(MSG_DEBUG,
a0c90bb0
IP		 4986 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4987 freq, wpa_s->num_multichan_concurrent, num, num_unused);
0d08efa4 4988
5de4b721 4989 if (freq > 0) {
51e9f228
JM		 4990 int ret;
4991 if (go)
4992 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4993 else
4994 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4995 if (!ret) {
d7f1aa8f
AK		 4996 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
4997 ieee80211_is_dfs(freq)) {
4998 /*
4999 * If freq is a DFS channel and DFS is offloaded
5000 * to the driver, allow P2P GO to use it.
5001 */
5002 wpa_printf(MSG_DEBUG,
5003 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5004 freq);
5005 } else {
5006 wpa_printf(MSG_DEBUG,
5007 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5008 freq);
5009 res = -3;
5010 goto exit_free;
5011 }
5de4b721
JM		 5012 }
5013
0d08efa4 5014 for (i = 0; i < num; i++) {
a0c90bb0 5015 if (freqs[i].freq == freq)
0d08efa4
IP		 5016 freq_in_use = 1;
5017 }
5018
a0c90bb0 5019 if (num_unused <= 0 && !freq_in_use) {
0d08efa4
IP		 5020 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5021 freq);
5022 res = -2;
5023 goto exit_free;
5de4b721
JM		 5024 }
5025 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5026 "requested channel (%u MHz)", freq);
5027 *force_freq = freq;
0d08efa4
IP		 5028 goto exit_ok;
5029 }
5030
a0c90bb0 5031 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
0d08efa4 5032
370017d9
AK		 5033 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
5034 enum wpa_driver_if_type iface_type;
5035
5036 if (go)
5037 iface_type = WPA_IF_P2P_GO;
5038 else
5039 iface_type = WPA_IF_P2P_CLIENT;
5040
5041 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
5042 best_freq, go);
5043
5044 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
5045 &max_pref_freq,
5046 pref_freq_list);
5047 if (!res && max_pref_freq > 0) {
5048 *num_pref_freq = max_pref_freq;
5049 i = 0;
5050 while (wpas_p2p_disallowed_freq(wpa_s->global,
5051 pref_freq_list[i]) &&
5052 i < *num_pref_freq) {
5053 wpa_printf(MSG_DEBUG,
5054 "P2P: preferred_freq_list[%d]=%d is disallowed",
5055 i, pref_freq_list[i]);
5056 i++;
5057 }
5058 if (i != *num_pref_freq) {
5059 best_freq = pref_freq_list[i];
5060 wpa_printf(MSG_DEBUG,
5061 "P2P: Using preferred_freq_list[%d]=%d",
5062 i, best_freq);
5063 } else {
5064 wpa_printf(MSG_DEBUG,
5065 "P2P: All driver preferred frequencies are disallowed for P2P use");
5066 *num_pref_freq = 0;
5067 }
5068 } else {
5069 wpa_printf(MSG_DEBUG,
5070 "P2P: No preferred frequency list available");
5071 }
5072 }
5073
a0c90bb0
IP		 5074 /* We have a candidate frequency to use */
5075 if (best_freq > 0) {
5076 if (*pref_freq == 0 && num_unused > 0) {
b17d89bd 5077 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
a0c90bb0
IP		 5078 best_freq);
5079 *pref_freq = best_freq;
b17d89bd
JM		 5080 } else {
5081 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
a0c90bb0
IP		 5082 best_freq);
5083 *force_freq = best_freq;
0d08efa4 5084 }
a0c90bb0
IP		 5085 } else if (num_unused > 0) {
5086 wpa_printf(MSG_DEBUG,
5087 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5088 *force_freq = 0;
5089 } else {
5090 wpa_printf(MSG_DEBUG,
5091 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5092 res = -2;
5093 goto exit_free;
0d08efa4
IP		 5094 }
5095
5096exit_ok:
5097 res = 0;
5098exit_free:
5099 os_free(freqs);
5100 return res;
5de4b721
JM		 5101}
5102
5103
b22128ef
JM		 5104/**
5105 * wpas_p2p_connect - Request P2P Group Formation to be started
5106 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5107 * @peer_addr: Address of the peer P2P Device
5108 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5109 * @persistent_group: Whether to create a persistent group
b31be3a0 5110 * @auto_join: Whether to select join vs. GO Negotiation automatically
b22128ef
JM		 5111 * @join: Whether to join an existing group (as a client) instead of starting
5112 * Group Owner negotiation; @peer_addr is BSSID in that case
5113 * @auth: Whether to only authorize the connection instead of doing that and
5114 * initiating Group Owner negotiation
5115 * @go_intent: GO Intent or -1 to use default
5116 * @freq: Frequency for the group or 0 for auto-selection
23c84252
JM		 5117 * @persistent_id: Persistent group credentials to use for forcing GO
5118 * parameters or -1 to generate new values (SSID/passphrase)
3bc462cb
JM		 5119 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5120 * interoperability workaround when initiating group formation
e2308e4b 5121 * @ht40: Start GO with 40 MHz channel width
20ea1ca4 5122 * @vht: Start GO with VHT support
d054a462
JM		 5123 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5124 * failure, -2 on failure due to channel not currently available,
5125 * -3 if forced channel is not supported
b22128ef
JM		 5126 */
5127int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5128 const char *pin, enum p2p_wps_method wps_method,
b31be3a0 5129 int persistent_group, int auto_join, int join, int auth,
e2308e4b 5130 int go_intent, int freq, int persistent_id, int pd,
20ea1ca4 5131 int ht40, int vht)
b22128ef 5132{
0d08efa4 5133 int force_freq = 0, pref_freq = 0;
5de4b721 5134 int ret = 0, res;
b22128ef 5135 enum wpa_driver_if_type iftype;
6cad95db 5136 const u8 *if_addr;
23c84252 5137 struct wpa_ssid *ssid = NULL;
370017d9 5138 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
b22128ef 5139
9526fd29
JM		 5140 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5141 return -1;
5142
23c84252
JM		 5143 if (persistent_id >= 0) {
5144 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5145 if (ssid == NULL || ssid->disabled != 2 ||
5146 ssid->mode != WPAS_MODE_P2P_GO)
5147 return -1;
5148 }
5149
01a57fe4
JM		 5150 os_free(wpa_s->global->add_psk);
5151 wpa_s->global->add_psk = NULL;
5152
95fb2db2 5153 wpa_s->global->p2p_fail_on_wps_complete = 0;
9a58e521 5154 wpa_s->global->pending_p2ps_group = 0;
b9da88d6 5155 wpa_s->p2ps_method_config_any = 0;
95fb2db2 5156
b22128ef
JM		 5157 if (go_intent < 0)
5158 go_intent = wpa_s->conf->p2p_go_intent;
5159
5160 if (!auth)
5161 wpa_s->p2p_long_listen = 0;
5162
3c5126a4 5163 wpa_s->p2p_wps_method = wps_method;
b31be3a0 5164 wpa_s->p2p_persistent_group = !!persistent_group;
23c84252 5165 wpa_s->p2p_persistent_id = persistent_id;
b31be3a0
JM		 5166 wpa_s->p2p_go_intent = go_intent;
5167 wpa_s->p2p_connect_freq = freq;
aa9bb764 5168 wpa_s->p2p_fallback_to_go_neg = 0;
3bc462cb 5169 wpa_s->p2p_pd_before_go_neg = !!pd;
e2308e4b 5170 wpa_s->p2p_go_ht40 = !!ht40;
20ea1ca4 5171 wpa_s->p2p_go_vht = !!vht;
3c5126a4 5172
b22128ef
JM		 5173 if (pin)
5174 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5175 else if (wps_method == WPS_PIN_DISPLAY) {
5176 ret = wps_generate_pin();
1d399771
JM		 5177 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5178 "%08d", ret);
5179 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5180 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
b22128ef
JM		 5181 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5182 wpa_s->p2p_pin);
5183 } else
5184 wpa_s->p2p_pin[0] = '\0';
5185
b31be3a0 5186 if (join || auto_join) {
4147a2cc 5187 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
108def93
JM		 5188 if (auth) {
5189 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5190 "connect a running group from " MACSTR,
5191 MAC2STR(peer_addr));
5192 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5193 return ret;
5194 }
4147a2cc 5195 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
b22128ef 5196 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4147a2cc 5197 iface_addr) < 0) {
b22128ef 5198 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4147a2cc
JM		 5199 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5200 dev_addr);
5201 }
b31be3a0 5202 if (auto_join) {
acb69cec 5203 os_get_reltime(&wpa_s->p2p_auto_started);
b31be3a0
JM		 5204 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5205 "%ld.%06ld",
5206 wpa_s->p2p_auto_started.sec,
5207 wpa_s->p2p_auto_started.usec);
5208 }
67527166 5209 wpa_s->user_initiated_pd = 1;
b31be3a0 5210 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
23318bea 5211 auto_join, freq, NULL, 0) < 0)
b22128ef
JM		 5212 return -1;
5213 return ret;
5214 }
5215
370017d9 5216 size = P2P_MAX_PREF_CHANNELS;
51e9f228 5217 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
370017d9 5218 go_intent == 15, pref_freq_list, &size);
5de4b721
JM		 5219 if (res)
5220 return res;
1b665cbf
JM		 5221 wpas_p2p_set_own_freq_preference(wpa_s,
5222 force_freq ? force_freq : pref_freq);
b22128ef 5223
370017d9
AK		 5224 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5225
b22128ef
JM		 5226 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5227
6cad95db
JB		 5228 if (wpa_s->create_p2p_iface) {
5229 /* Prepare to add a new interface for the group */
5230 iftype = WPA_IF_P2P_GROUP;
5231 if (go_intent == 15)
5232 iftype = WPA_IF_P2P_GO;
5233 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5234 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5235 "interface for the group");
b22128ef 5236 return -1;
6cad95db 5237 }
b22128ef 5238
6cad95db 5239 if_addr = wpa_s->pending_interface_addr;
9f59fe8d 5240 } else {
6cad95db 5241 if_addr = wpa_s->own_addr;
9f59fe8d
JM		 5242 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5243 }
b22128ef
JM		 5244
5245 if (auth) {
5246 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
6cad95db 5247 go_intent, if_addr,
04a3e69d
JM		 5248 force_freq, persistent_group, ssid,
5249 pref_freq) < 0)
b22128ef
JM		 5250 return -1;
5251 return ret;
5252 }
6cad95db
JB		 5253
5254 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5255 go_intent, if_addr, force_freq,
04a3e69d 5256 persistent_group, ssid, pref_freq) < 0) {
6cad95db
JB		 5257 if (wpa_s->create_p2p_iface)
5258 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 5259 return -1;
5260 }
5261 return ret;
5262}
5263
5264
5265/**
5266 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5267 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5268 * @freq: Frequency of the channel in MHz
5269 * @duration: Duration of the stay on the channel in milliseconds
5270 *
5271 * This callback is called when the driver indicates that it has started the
5272 * requested remain-on-channel duration.
5273 */
5274void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5275 unsigned int freq, unsigned int duration)
5276{
9526fd29
JM		 5277 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5278 return;
f2dc06e2
JM		 5279 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)",
5280 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5281 wpa_s->roc_waiting_drv_freq, freq, duration);
5282 if (wpa_s->off_channel_freq &&
5283 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
b22128ef
JM		 5284 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5285 wpa_s->pending_listen_duration);
5286 wpa_s->pending_listen_freq = 0;
211d7ab3
JM		 5287 } else {
5288 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5289 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5290 freq, duration);
b22128ef
JM		 5291 }
5292}
5293
5294
49e1e9ca 5295int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
b22128ef
JM		 5296{
5297 /* Limit maximum Listen state time based on driver limitation. */
5298 if (timeout > wpa_s->max_remain_on_chan)
5299 timeout = wpa_s->max_remain_on_chan;
5300
5301 return p2p_listen(wpa_s->global->p2p, timeout);
5302}
5303
5304
5305/**
5306 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5307 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5308 * @freq: Frequency of the channel in MHz
5309 *
5310 * This callback is called when the driver indicates that a remain-on-channel
5311 * operation has been completed, i.e., the duration on the requested channel
5312 * has timed out.
5313 */
5314void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5315 unsigned int freq)
5316{
1cc3a29d 5317 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
11fb02be 5318 "(p2p_long_listen=%d ms pending_action_tx=%p)",
2f3101d8 5319 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
e1d1c8e2 5320 wpas_p2p_listen_work_done(wpa_s);
9526fd29
JM		 5321 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5322 return;
49e1e9ca
JJ		 5323 if (wpa_s->p2p_long_listen > 0)
5324 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
b22128ef
JM		 5325 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5326 return; /* P2P module started a new operation */
2f3101d8 5327 if (offchannel_pending_action_tx(wpa_s))
b22128ef 5328 return;
b22128ef
JM		 5329 if (wpa_s->p2p_long_listen > 0) {
5330 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
11fb02be 5331 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
0b5fb86a
SADR		 5332 } else {
5333 /*
5334 * When listen duration is over, stop listen & update p2p_state
5335 * to IDLE.
5336 */
5337 p2p_stop_listen(wpa_s->global->p2p);
b22128ef
JM		 5338 }
5339}
5340
5341
5342/**
5343 * wpas_p2p_group_remove - Remove a P2P group
5344 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5345 * @ifname: Network interface name of the group interface or "*" to remove all
5346 * groups
5347 * Returns: 0 on success, -1 on failure
5348 *
5349 * This function is used to remove a P2P group. This can be used to disconnect
5350 * from a group in which the local end is a P2P Client or to end a P2P Group in
5351 * case the local end is the Group Owner. If a virtual network interface was
5352 * created for this group, that interface will be removed. Otherwise, only the
5353 * configured P2P group network will be removed from the interface.
5354 */
5355int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5356{
5357 struct wpa_global *global = wpa_s->global;
f2b3acc9 5358 struct wpa_supplicant *calling_wpa_s = wpa_s;
b22128ef
JM		 5359
5360 if (os_strcmp(ifname, "*") == 0) {
5361 struct wpa_supplicant *prev;
5362 wpa_s = global->ifaces;
5363 while (wpa_s) {
5364 prev = wpa_s;
5365 wpa_s = wpa_s->next;
d99ca89d
IP		 5366 if (prev->p2p_group_interface !=
5367 NOT_P2P_GROUP_INTERFACE ||
5368 (prev->current_ssid &&
5369 prev->current_ssid->p2p_group))
f2b3acc9 5370 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
b22128ef
JM		 5371 }
5372 return 0;
5373 }
5374
5375 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5376 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5377 break;
5378 }
5379
f2b3acc9 5380 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
b22128ef
JM		 5381}
5382
5383
4abc0424
WJL		 5384static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5385{
5386 unsigned int r;
5387
8e84921e
AK		 5388 if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5389 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5390 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5391 int res;
5392
5393 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5394 &size, pref_freq_list);
5395 if (!res && size > 0) {
5396 i = 0;
5397 while (wpas_p2p_disallowed_freq(wpa_s->global,
5398 pref_freq_list[i]) &&
5399 i < size) {
5400 wpa_printf(MSG_DEBUG,
5401 "P2P: preferred_freq_list[%d]=%d is disallowed",
5402 i, pref_freq_list[i]);
5403 i++;
5404 }
5405 if (i != size) {
5406 freq = pref_freq_list[i];
5407 wpa_printf(MSG_DEBUG,
5408 "P2P: Using preferred_freq_list[%d]=%d",
5409 i, freq);
5410 } else {
5411 wpa_printf(MSG_DEBUG,
5412 "P2P: All driver preferred frequencies are disallowed for P2P use");
5413 }
5414 } else {
5415 wpa_printf(MSG_DEBUG,
5416 "P2P: No preferred frequency list available");
5417 }
5418 }
5419
4abc0424
WJL		 5420 if (freq == 2) {
5421 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5422 "band");
5423 if (wpa_s->best_24_freq > 0 &&
556b30da
JM		 5424 p2p_supported_freq_go(wpa_s->global->p2p,
5425 wpa_s->best_24_freq)) {
4abc0424
WJL		 5426 freq = wpa_s->best_24_freq;
5427 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5428 "channel: %d MHz", freq);
5429 } else {
df2508d7
JM		 5430 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5431 return -1;
4abc0424
WJL		 5432 freq = 2412 + (r % 3) * 25;
5433 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5434 "channel: %d MHz", freq);
5435 }
5436 }
5437
5438 if (freq == 5) {
5439 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5440 "band");
5441 if (wpa_s->best_5_freq > 0 &&
556b30da 5442 p2p_supported_freq_go(wpa_s->global->p2p,
4abc0424
WJL		 5443 wpa_s->best_5_freq)) {
5444 freq = wpa_s->best_5_freq;
5445 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5446 "channel: %d MHz", freq);
5447 } else {
df2508d7
JM		 5448 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5449 return -1;
4abc0424 5450 freq = 5180 + (r % 4) * 20;
556b30da 5451 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4abc0424
WJL		 5452 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5453 "5 GHz channel for P2P group");
5454 return -1;
5455 }
5456 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5457 "channel: %d MHz", freq);
5458 }
5459 }
5460
556b30da 5461 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
d7f1aa8f
AK		 5462 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5463 ieee80211_is_dfs(freq)) {
5464 /*
5465 * If freq is a DFS channel and DFS is offloaded to the
5466 * driver, allow P2P GO to use it.
5467 */
5468 wpa_printf(MSG_DEBUG, "P2P: "
5469 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5470 __func__, freq);
5471 return freq;
5472 }
4abc0424
WJL		 5473 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5474 "(%u MHz) is not supported for P2P uses",
5475 freq);
5476 return -1;
5477 }
5478
5479 return freq;
5480}
5481
5482
b1308121
IP		 5483static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5484 const struct p2p_channels *channels,
5485 int freq)
5486{
5487 if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5488 p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5489 freq_included(wpa_s, channels, freq))
5490 return 1;
5491 return 0;
5492}
5493
5494
5495static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5496 struct p2p_go_neg_results *params,
5497 const struct p2p_channels *channels)
28812a89
IP		 5498{
5499 unsigned int i, r;
5500
5501 /* first try some random selection of the social channels */
5e62cfdf 5502 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
b1308121 5503 return;
28812a89
IP		 5504
5505 for (i = 0; i < 3; i++) {
5506 params->freq = 2412 + ((r + i) % 3) * 25;
b1308121 5507 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
28812a89
IP		 5508 goto out;
5509 }
5510
b1308121 5511 /* try all other channels in operating class 81 */
28812a89
IP		 5512 for (i = 0; i < 11; i++) {
5513 params->freq = 2412 + i * 5;
b1308121
IP		 5514
5515 /* skip social channels; covered in the previous loop */
5516 if (params->freq == 2412 ||
5517 params->freq == 2437 ||
5518 params->freq == 2462)
5519 continue;
5520
5521 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
1595eb93
AM		 5522 goto out;
5523 }
5524
95d7b863
KV		 5525 /* try all channels in operating class 115 */
5526 for (i = 0; i < 4; i++) {
5527 params->freq = 5180 + i * 20;
5528 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5529 freq_included(wpa_s, channels, params->freq) &&
95d7b863
KV		 5530 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5531 goto out;
5532 }
5533
5534 /* try all channels in operating class 124 */
5535 for (i = 0; i < 4; i++) {
5536 params->freq = 5745 + i * 20;
5537 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5538 freq_included(wpa_s, channels, params->freq) &&
95d7b863
KV		 5539 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5540 goto out;
5541 }
5542
1595eb93
AM		 5543 /* try social channel class 180 channel 2 */
5544 params->freq = 58320 + 1 * 2160;
5545 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5546 freq_included(wpa_s, channels, params->freq) &&
1595eb93
AM		 5547 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5548 goto out;
5549
5550 /* try all channels in reg. class 180 */
5551 for (i = 0; i < 4; i++) {
5552 params->freq = 58320 + i * 2160;
5553 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5554 freq_included(wpa_s, channels, params->freq) &&
1595eb93 5555 p2p_supported_freq(wpa_s->global->p2p, params->freq))
28812a89
IP		 5556 goto out;
5557 }
5558
b1308121 5559 params->freq = 0;
95d7b863 5560 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
b1308121 5561 return;
28812a89
IP		 5562out:
5563 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5564 params->freq);
28812a89
IP		 5565}
5566
5567
b8349523
NKG		 5568static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5569 struct p2p_go_neg_results *params,
20ea1ca4 5570 int freq, int ht40, int vht,
54733624 5571 const struct p2p_channels *channels)
b22128ef 5572{
a0c90bb0 5573 struct wpa_used_freq_data *freqs;
b1308121 5574 unsigned int cand;
0d08efa4 5575 unsigned int num, i;
23dcb302 5576 int ignore_no_freqs = 0;
b22128ef
JM		 5577
5578 os_memset(params, 0, sizeof(*params));
5579 params->role_go = 1;
7aeac985 5580 params->ht40 = ht40;
20ea1ca4 5581 params->vht = vht;
e280110d 5582
b1308121
IP		 5583 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5584 sizeof(struct wpa_used_freq_data));
5585 if (!freqs)
5586 return -1;
5587
23dcb302
IP		 5588 num = get_shared_radio_freqs_data(wpa_s, freqs,
5589 wpa_s->num_multichan_concurrent);
5590
5591 if (wpa_s->current_ssid &&
5592 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
5593 wpa_s->wpa_state == WPA_COMPLETED) {
5594 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5595 __func__);
5596
5597 /*
5598 * If the frequency selection is done for an active P2P GO that
5599 * is not sharing a frequency, allow to select a new frequency
5600 * even if there are no unused frequencies as we are about to
5601 * move the P2P GO so its frequency can be re-used.
5602 */
5603 for (i = 0; i < num; i++) {
5604 if (freqs[i].freq == wpa_s->current_ssid->frequency &&
5605 freqs[i].flags == 0) {
5606 ignore_no_freqs = 1;
5607 break;
5608 }
5609 }
5610 }
b1308121
IP		 5611
5612 /* try using the forced freq */
7cfc4ac3 5613 if (freq) {
b1308121
IP		 5614 if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) {
5615 wpa_printf(MSG_DEBUG,
5616 "P2P: Forced GO freq %d MHz not accepted",
5617 freq);
5618 goto fail;
5619 }
5620
5621 for (i = 0; i < num; i++) {
5622 if (freqs[i].freq == freq) {
5623 wpa_printf(MSG_DEBUG,
5624 "P2P: forced freq (%d MHz) is also shared",
5625 freq);
5626 params->freq = freq;
5627 goto success;
5628 }
54733624 5629 }
b1308121 5630
23dcb302
IP		 5631 if (!ignore_no_freqs &&
5632 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
b1308121
IP		 5633 wpa_printf(MSG_DEBUG,
5634 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5635 freq);
5636 goto fail;
5637 }
5638
5639 wpa_printf(MSG_DEBUG,
5640 "P2P: force GO freq (%d MHz) on a free channel",
5641 freq);
b22128ef 5642 params->freq = freq;
b1308121
IP		 5643 goto success;
5644 }
5645
5646 /* consider using one of the shared frequencies */
5647 if (num) {
5648 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5649 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5650 wpa_printf(MSG_DEBUG,
5651 "P2P: Use shared freq (%d MHz) for GO",
5652 freq);
5653 params->freq = cand;
5654 goto success;
5655 }
5656
5657 /* try using one of the shared freqs */
5658 for (i = 0; i < num; i++) {
5659 if (wpas_p2p_supported_freq_go(wpa_s, channels,
5660 freqs[i].freq)) {
5661 wpa_printf(MSG_DEBUG,
5662 "P2P: Use shared freq (%d MHz) for GO",
5663 freq);
5664 params->freq = freqs[i].freq;
5665 goto success;
5666 }
5667 }
5668 }
5669
23dcb302
IP		 5670 if (!ignore_no_freqs &&
5671 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
b1308121
IP		 5672 wpa_printf(MSG_DEBUG,
5673 "P2P: Cannot force GO on any of the channels we are already using");
5674 goto fail;
5675 }
5676
5677 /* try using the setting from the configuration file */
5678 if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5679 wpa_s->conf->p2p_oper_channel >= 1 &&
5680 wpa_s->conf->p2p_oper_channel <= 11 &&
5681 wpas_p2p_supported_freq_go(
5682 wpa_s, channels,
5683 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 5684 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 5685 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5686 "frequency %d MHz", params->freq);
b1308121
IP		 5687 goto success;
5688 }
5689
5690 if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5691 wpa_s->conf->p2p_oper_reg_class == 116 ||
5692 wpa_s->conf->p2p_oper_reg_class == 117 ||
5693 wpa_s->conf->p2p_oper_reg_class == 124 ||
5694 wpa_s->conf->p2p_oper_reg_class == 125 ||
5695 wpa_s->conf->p2p_oper_reg_class == 126 ||
5696 wpa_s->conf->p2p_oper_reg_class == 127) &&
5697 wpas_p2p_supported_freq_go(wpa_s, channels,
5698 5000 +
5699 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 5700 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 5701 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5702 "frequency %d MHz", params->freq);
b1308121
IP		 5703 goto success;
5704 }
5705
5706 /* Try using best channels */
5707 if (wpa_s->conf->p2p_oper_channel == 0 &&
5708 wpa_s->best_overall_freq > 0 &&
5709 wpas_p2p_supported_freq_go(wpa_s, channels,
5710 wpa_s->best_overall_freq)) {
7cfc4ac3
AGS		 5711 params->freq = wpa_s->best_overall_freq;
5712 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5713 "channel %d MHz", params->freq);
b1308121
IP		 5714 goto success;
5715 }
5716
5717 if (wpa_s->conf->p2p_oper_channel == 0 &&
5718 wpa_s->best_24_freq > 0 &&
5719 wpas_p2p_supported_freq_go(wpa_s, channels,
5720 wpa_s->best_24_freq)) {
7cfc4ac3
AGS		 5721 params->freq = wpa_s->best_24_freq;
5722 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5723 "channel %d MHz", params->freq);
b1308121
IP		 5724 goto success;
5725 }
5726
5727 if (wpa_s->conf->p2p_oper_channel == 0 &&
5728 wpa_s->best_5_freq > 0 &&
5729 wpas_p2p_supported_freq_go(wpa_s, channels,
5730 wpa_s->best_5_freq)) {
7cfc4ac3
AGS		 5731 params->freq = wpa_s->best_5_freq;
5732 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5733 "channel %d MHz", params->freq);
b1308121
IP		 5734 goto success;
5735 }
5736
5737 /* try using preferred channels */
5738 cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
5739 if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5740 params->freq = cand;
c6ccf12d
SS		 5741 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5742 "channels", params->freq);
b1308121
IP		 5743 goto success;
5744 }
5745
5746 /* Try using one of the group common freqs */
5747 if (wpa_s->p2p_group_common_freqs) {
e280110d 5748 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
b1308121
IP		 5749 cand = wpa_s->p2p_group_common_freqs[i];
5750 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5751 params->freq = cand;
e280110d
IP		 5752 wpa_printf(MSG_DEBUG,
5753 "P2P: Use freq %d MHz common with the peer",
5754 params->freq);
b1308121 5755 goto success;
e280110d
IP		 5756 }
5757 }
7cfc4ac3
AGS		 5758 }
5759
b1308121
IP		 5760 /* no preference, select some channel */
5761 wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
a0c90bb0 5762
b1308121
IP		 5763 if (params->freq == 0) {
5764 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
5765 goto fail;
0d08efa4 5766 }
7d669cf7 5767
b1308121 5768success:
0d08efa4 5769 os_free(freqs);
b8349523 5770 return 0;
b1308121
IP		 5771fail:
5772 os_free(freqs);
5773 return -1;
b22128ef
JM		 5774}
5775
5776
5777static struct wpa_supplicant *
5778wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5779 int go)
5780{
5781 struct wpa_supplicant *group_wpa_s;
5782
ac06fb12
JM		 5783 if (!wpas_p2p_create_iface(wpa_s)) {
5784 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5785 "operations");
bbc6c729 5786 wpa_s->p2p_first_connection_timeout = 0;
b22128ef 5787 return wpa_s;
ac06fb12 5788 }
b22128ef
JM		 5789
5790 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
ac06fb12 5791 WPA_IF_P2P_CLIENT) < 0) {
92c4465b
JM		 5792 wpa_msg_global(wpa_s, MSG_ERROR,
5793 "P2P: Failed to add group interface");
b22128ef 5794 return NULL;
ac06fb12 5795 }
b22128ef
JM		 5796 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5797 if (group_wpa_s == NULL) {
92c4465b
JM		 5798 wpa_msg_global(wpa_s, MSG_ERROR,
5799 "P2P: Failed to initialize group interface");
b22128ef
JM		 5800 wpas_p2p_remove_pending_group_interface(wpa_s);
5801 return NULL;
5802 }
5803
ac06fb12
JM		 5804 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5805 group_wpa_s->ifname);
bbc6c729 5806 group_wpa_s->p2p_first_connection_timeout = 0;
b22128ef
JM		 5807 return group_wpa_s;
5808}
5809
5810
5811/**
5812 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5813 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5814 * @persistent_group: Whether to create a persistent group
5815 * @freq: Frequency for the group or 0 to indicate no hardcoding
20ea1ca4
EP		 5816 * @ht40: Start GO with 40 MHz channel width
5817 * @vht: Start GO with VHT support
b22128ef
JM		 5818 * Returns: 0 on success, -1 on failure
5819 *
5820 * This function creates a new P2P group with the local end as the Group Owner,
5821 * i.e., without using Group Owner Negotiation.
5822 */
5823int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
20ea1ca4 5824 int freq, int ht40, int vht)
b22128ef
JM		 5825{
5826 struct p2p_go_neg_results params;
7cfc4ac3 5827
9526fd29
JM		 5828 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5829 return -1;
5830
01a57fe4
JM		 5831 os_free(wpa_s->global->add_psk);
5832 wpa_s->global->add_psk = NULL;
5833
2d4f15d6
JJ		 5834 /* Make sure we are not running find during connection establishment */
5835 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
8713a2e6 5836 wpas_p2p_stop_find_oper(wpa_s);
2d4f15d6 5837
4abc0424
WJL		 5838 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5839 if (freq < 0)
4ae4650b 5840 return -1;
4ae4650b 5841
20ea1ca4 5842 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, NULL))
b8349523 5843 return -1;
f4329aa2 5844 if (params.freq &&
556b30da 5845 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
d7f1aa8f
AK		 5846 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5847 ieee80211_is_dfs(params.freq)) {
5848 /*
5849 * If freq is a DFS channel and DFS is offloaded to the
5850 * driver, allow P2P GO to use it.
5851 */
5852 wpa_printf(MSG_DEBUG,
5853 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
5854 __func__, params.freq);
5855 } else {
5856 wpa_printf(MSG_DEBUG,
5857 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
5858 params.freq);
5859 return -1;
5860 }
f4329aa2 5861 }
b22128ef
JM		 5862 p2p_go_params(wpa_s->global->p2p, &params);
5863 params.persistent_group = persistent_group;
5864
5865 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5866 if (wpa_s == NULL)
5867 return -1;
5868 wpas_start_wps_go(wpa_s, &params, 0);
5869
5870 return 0;
5871}
5872
5873
5874static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
41d5ce9e 5875 struct wpa_ssid *params, int addr_allocated,
dfaf11d6 5876 int freq, int force_scan)
b22128ef
JM		 5877{
5878 struct wpa_ssid *ssid;
5879
5880 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5881 if (wpa_s == NULL)
5882 return -1;
dfaf11d6
JM		 5883 if (force_scan)
5884 os_get_reltime(&wpa_s->scan_min_time);
5bf9a6c8 5885 wpa_s->p2p_last_4way_hs_fail = NULL;
b22128ef
JM		 5886
5887 wpa_supplicant_ap_deinit(wpa_s);
5888
5889 ssid = wpa_config_add_network(wpa_s->conf);
5890 if (ssid == NULL)
5891 return -1;
9f59fe8d 5892 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
b22128ef
JM		 5893 wpa_config_set_network_defaults(ssid);
5894 ssid->temporary = 1;
5895 ssid->proto = WPA_PROTO_RSN;
5896 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5897 ssid->group_cipher = WPA_CIPHER_CCMP;
5898 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5899 ssid->ssid = os_malloc(params->ssid_len);
5900 if (ssid->ssid == NULL) {
b22128ef
JM		 5901 wpa_config_remove_network(wpa_s->conf, ssid->id);
5902 return -1;
5903 }
5904 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5905 ssid->ssid_len = params->ssid_len;
5906 ssid->p2p_group = 1;
d1c8ac88 5907 ssid->export_keys = 1;
b22128ef
JM		 5908 if (params->psk_set) {
5909 os_memcpy(ssid->psk, params->psk, 32);
5910 ssid->psk_set = 1;
5911 }
5912 if (params->passphrase)
5913 ssid->passphrase = os_strdup(params->passphrase);
5914
b22128ef 5915 wpa_s->show_group_started = 1;
41d5ce9e
RR		 5916 wpa_s->p2p_in_invitation = 1;
5917 wpa_s->p2p_invite_go_freq = freq;
b22128ef 5918
91364b7f
SDU		 5919 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5920 NULL);
5921 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5922 wpas_p2p_group_formation_timeout,
5923 wpa_s->parent, NULL);
6fc48481
RR		 5924 wpa_supplicant_select_network(wpa_s, ssid);
5925
b22128ef
JM		 5926 return 0;
5927}
5928
5929
5930int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5931 struct wpa_ssid *ssid, int addr_allocated,
062a7c0d
MS		 5932 int force_freq, int neg_freq, int ht40,
5933 int vht, const struct p2p_channels *channels,
dfaf11d6 5934 int connection_timeout, int force_scan)
b22128ef
JM		 5935{
5936 struct p2p_go_neg_results params;
062a7c0d 5937 int go = 0, freq;
b22128ef
JM		 5938
5939 if (ssid->disabled != 2 || ssid->ssid == NULL)
5940 return -1;
5941
6c0da49f
JM		 5942 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5943 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5944 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5945 "already running");
ccad05a9
KV		 5946 if (go == 0 &&
5947 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5948 wpa_s->parent, NULL)) {
5949 /*
5950 * This can happen if Invitation Response frame was lost
5951 * and the peer (GO of a persistent group) tries to
5952 * invite us again. Reschedule the timeout to avoid
5953 * terminating the wait for the connection too early
5954 * since we now know that the peer is still trying to
5955 * invite us instead of having already started the GO.
5956 */
5957 wpa_printf(MSG_DEBUG,
5958 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
5959 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5960 wpas_p2p_group_formation_timeout,
5961 wpa_s->parent, NULL);
5962 }
6c0da49f
JM		 5963 return 0;
5964 }
5965
01a57fe4
JM		 5966 os_free(wpa_s->global->add_psk);
5967 wpa_s->global->add_psk = NULL;
5968
9d39057c 5969 /* Make sure we are not running find during connection establishment */
8713a2e6 5970 wpas_p2p_stop_find_oper(wpa_s);
b22128ef 5971
aa9bb764
JM		 5972 wpa_s->p2p_fallback_to_go_neg = 0;
5973
431dd8bb
MK		 5974 if (ssid->mode == WPAS_MODE_P2P_GO) {
5975 if (force_freq > 0) {
5976 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5977 if (freq < 0)
5978 return -1;
5979 } else {
5980 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5981 if (freq < 0 ||
e280110d 5982 (freq > 0 && !freq_included(wpa_s, channels, freq)))
431dd8bb
MK		 5983 freq = 0;
5984 }
989e7846 5985 } else if (ssid->mode == WPAS_MODE_INFRA) {
431dd8bb 5986 freq = neg_freq;
e280110d 5987 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
989e7846
AS		 5988 struct os_reltime now;
5989 struct wpa_bss *bss =
5990 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
5991
5992 os_get_reltime(&now);
5993 if (bss &&
5994 !os_reltime_expired(&now, &bss->last_update, 5) &&
e280110d 5995 freq_included(wpa_s, channels, bss->freq))
989e7846
AS		 5996 freq = bss->freq;
5997 else
5998 freq = 0;
5999 }
4abc0424 6000
dfaf11d6
JM		 6001 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
6002 force_scan);
989e7846 6003 } else {
41d5ce9e 6004 return -1;
989e7846 6005 }
41d5ce9e 6006
20ea1ca4 6007 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, channels))
b8349523 6008 return -1;
b22128ef
JM		 6009
6010 params.role_go = 1;
30c371e8
MH		 6011 params.psk_set = ssid->psk_set;
6012 if (params.psk_set)
6013 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
bb4d4deb
MH		 6014 if (ssid->passphrase) {
6015 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6016 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6017 "persistent group");
6018 return -1;
6019 }
6020 os_strlcpy(params.passphrase, ssid->passphrase,
6021 sizeof(params.passphrase));
b22128ef 6022 }
b22128ef
JM		 6023 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6024 params.ssid_len = ssid->ssid_len;
6025 params.persistent_group = 1;
6026
6027 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6028 if (wpa_s == NULL)
6029 return -1;
6030
1170239e
IP		 6031 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6032
bbc6c729 6033 wpa_s->p2p_first_connection_timeout = connection_timeout;
b22128ef
JM		 6034 wpas_start_wps_go(wpa_s, &params, 0);
6035
6036 return 0;
6037}
6038
6039
6040static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6041 struct wpabuf *proberesp_ies)
6042{
6043 struct wpa_supplicant *wpa_s = ctx;
6044 if (wpa_s->ap_iface) {
6045 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
adc33680
JM		 6046 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6047 wpabuf_free(beacon_ies);
6048 wpabuf_free(proberesp_ies);
6049 return;
6050 }
b22128ef
JM		 6051 if (beacon_ies) {
6052 wpabuf_free(hapd->p2p_beacon_ie);
6053 hapd->p2p_beacon_ie = beacon_ies;
6054 }
6055 wpabuf_free(hapd->p2p_probe_resp_ie);
6056 hapd->p2p_probe_resp_ie = proberesp_ies;
6057 } else {
6058 wpabuf_free(beacon_ies);
6059 wpabuf_free(proberesp_ies);
6060 }
6061 wpa_supplicant_ap_update_beacon(wpa_s);
6062}
6063
6064
3071e181
JM		 6065static void wpas_p2p_idle_update(void *ctx, int idle)
6066{
6067 struct wpa_supplicant *wpa_s = ctx;
6068 if (!wpa_s->ap_iface)
6069 return;
6070 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
95fb2db2
JM		 6071 if (idle) {
6072 if (wpa_s->global->p2p_fail_on_wps_complete &&
6073 wpa_s->p2p_in_provisioning) {
6074 wpas_p2p_grpform_fail_after_wps(wpa_s);
6075 return;
6076 }
3071e181 6077 wpas_p2p_set_group_idle_timeout(wpa_s);
95fb2db2 6078 } else
3071e181
JM		 6079 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6080}
6081
6082
b22128ef 6083struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6f251b6b 6084 struct wpa_ssid *ssid)
b22128ef
JM		 6085{
6086 struct p2p_group *group;
6087 struct p2p_group_config *cfg;
6088
9526fd29
JM		 6089 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6090 return NULL;
3ac17eba 6091
b22128ef
JM		 6092 cfg = os_zalloc(sizeof(*cfg));
6093 if (cfg == NULL)
6094 return NULL;
6095
6f251b6b 6096 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
acc247b2 6097 cfg->persistent_group = 2;
6f251b6b 6098 else if (ssid->p2p_persistent_group)
acc247b2 6099 cfg->persistent_group = 1;
b22128ef 6100 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3f4ce13f
JM		 6101 if (wpa_s->max_stations &&
6102 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6103 cfg->max_clients = wpa_s->max_stations;
6104 else
6105 cfg->max_clients = wpa_s->conf->max_num_sta;
6f251b6b
JM		 6106 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6107 cfg->ssid_len = ssid->ssid_len;
ea43ad96 6108 cfg->freq = ssid->frequency;
b22128ef
JM		 6109 cfg->cb_ctx = wpa_s;
6110 cfg->ie_update = wpas_p2p_ie_update;
3071e181 6111 cfg->idle_update = wpas_p2p_idle_update;
b22128ef
JM		 6112
6113 group = p2p_group_init(wpa_s->global->p2p, cfg);
6114 if (group == NULL)
6115 os_free(cfg);
6f251b6b 6116 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
b22128ef
JM		 6117 p2p_group_notif_formation_done(group);
6118 wpa_s->p2p_group = group;
6119 return group;
6120}
6121
6122
6123void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6124 int registrar)
6125{
10531d21
JM		 6126 struct wpa_ssid *ssid = wpa_s->current_ssid;
6127
b22128ef
JM		 6128 if (!wpa_s->p2p_in_provisioning) {
6129 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6130 "provisioning not in progress");
6131 return;
6132 }
6133
10531d21
JM		 6134 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6135 u8 go_dev_addr[ETH_ALEN];
6136 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6137 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6138 ssid->ssid_len);
6139 /* Clear any stored provisioning info */
6140 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6141 }
ec437d9e 6142
b22128ef
JM		 6143 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6144 NULL);
41f85323 6145 wpa_s->p2p_go_group_formation_completed = 1;
361cdf34
JM		 6146 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6147 /*
6148 * Use a separate timeout for initial data connection to
6149 * complete to allow the group to be removed automatically if
6150 * something goes wrong in this step before the P2P group idle
6151 * timeout mechanism is taken into use.
6152 */
41f85323
JM		 6153 wpa_dbg(wpa_s, MSG_DEBUG,
6154 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6155 P2P_MAX_INITIAL_CONN_WAIT);
361cdf34
JM		 6156 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6157 wpas_p2p_group_formation_timeout,
ad853202 6158 wpa_s->parent, NULL);
41f85323
JM		 6159 } else if (ssid) {
6160 /*
6161 * Use a separate timeout for initial data connection to
6162 * complete to allow the group to be removed automatically if
6163 * the client does not complete data connection successfully.
6164 */
6165 wpa_dbg(wpa_s, MSG_DEBUG,
6166 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6167 P2P_MAX_INITIAL_CONN_WAIT_GO);
6168 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6169 wpas_p2p_group_formation_timeout,
6170 wpa_s->parent, NULL);
6171 /*
6172 * Complete group formation on first successful data connection
6173 */
6174 wpa_s->p2p_go_group_formation_completed = 0;
361cdf34 6175 }
b22128ef
JM		 6176 if (wpa_s->global->p2p)
6177 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
d95c5994 6178 wpas_group_formation_completed(wpa_s, 1, 0);
b22128ef
JM		 6179}
6180
6181
3734552f
JS		 6182void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6183 struct wps_event_fail *fail)
6184{
6185 if (!wpa_s->p2p_in_provisioning) {
6186 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6187 "provisioning not in progress");
6188 return;
6189 }
ec437d9e
JJ		 6190
6191 if (wpa_s->go_params) {
6192 p2p_clear_provisioning_info(
6193 wpa_s->global->p2p,
10531d21 6194 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 6195 }
6196
3734552f 6197 wpas_notify_p2p_wps_failed(wpa_s, fail);
95fb2db2
JM		 6198
6199 if (wpa_s == wpa_s->global->p2p_group_formation) {
6200 /*
6201 * Allow some time for the failed WPS negotiation exchange to
6202 * complete, but remove the group since group formation cannot
6203 * succeed after provisioning failure.
6204 */
6205 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6206 wpa_s->global->p2p_fail_on_wps_complete = 1;
6207 eloop_deplete_timeout(0, 50000,
6208 wpas_p2p_group_formation_timeout,
6209 wpa_s->parent, NULL);
6210 }
6211}
6212
6213
6214int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6215{
6216 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6217 !wpa_s->p2p_in_provisioning)
6218 return 0;
6219
6220 wpas_p2p_grpform_fail_after_wps(wpa_s);
6221
6222 return 1;
3734552f
JS		 6223}
6224
6225
b22128ef 6226int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
0918c4bf 6227 const char *config_method,
6d908514
KV		 6228 enum wpas_p2p_prov_disc_use use,
6229 struct p2ps_provision *p2ps_prov)
b22128ef
JM		 6230{
6231 u16 config_methods;
6232
9a58e521 6233 wpa_s->global->pending_p2ps_group = 0;
aa9bb764 6234 wpa_s->p2p_fallback_to_go_neg = 0;
0918c4bf 6235 wpa_s->pending_pd_use = NORMAL_PD;
6d908514
KV		 6236 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6237 p2ps_prov->conncap = p2ps_group_capability(
6238 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role);
6239 wpa_printf(MSG_DEBUG,
6240 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6241 __func__, p2ps_prov->conncap,
6242 p2ps_prov->adv_id, p2ps_prov->conncap,
6243 p2ps_prov->status, p2ps_prov->info);
6244
6245 config_methods = 0;
6246 } else if (os_strncmp(config_method, "display", 7) == 0)
b22128ef 6247 config_methods = WPS_CONFIG_DISPLAY;
8c5f7309 6248 else if (os_strncmp(config_method, "keypad", 6) == 0)
b22128ef 6249 config_methods = WPS_CONFIG_KEYPAD;
8c5f7309
JJ		 6250 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6251 os_strncmp(config_method, "pushbutton", 10) == 0)
b22128ef 6252 config_methods = WPS_CONFIG_PUSHBUTTON;
8c5f7309
JJ		 6253 else {
6254 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6d908514 6255 os_free(p2ps_prov);
b22128ef 6256 return -1;
8c5f7309 6257 }
b22128ef 6258
0918c4bf
JM		 6259 if (use == WPAS_P2P_PD_AUTO) {
6260 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6261 wpa_s->pending_pd_config_methods = config_methods;
6262 wpa_s->p2p_auto_pd = 1;
6263 wpa_s->p2p_auto_join = 0;
6264 wpa_s->pending_pd_before_join = 0;
84286a22 6265 wpa_s->auto_pd_scan_retry = 0;
0918c4bf
JM		 6266 wpas_p2p_stop_find(wpa_s);
6267 wpa_s->p2p_join_scan_count = 0;
acb69cec 6268 os_get_reltime(&wpa_s->p2p_auto_started);
84286a22
SDU		 6269 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6270 wpa_s->p2p_auto_started.sec,
6271 wpa_s->p2p_auto_started.usec);
0918c4bf
JM		 6272 wpas_p2p_join_scan(wpa_s, NULL);
6273 return 0;
6274 }
6275
6d908514
KV		 6276 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6277 os_free(p2ps_prov);
b22128ef 6278 return -1;
6d908514 6279 }
b22128ef 6280
6d908514 6281 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
0918c4bf 6282 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
67527166 6283 0, 1);
b22128ef
JM		 6284}
6285
6286
6287int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6288 char *end)
6289{
6290 return p2p_scan_result_text(ies, ies_len, buf, end);
6291}
6292
6293
1cc3a29d
JM		 6294static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6295{
2f3101d8 6296 if (!offchannel_pending_action_tx(wpa_s))
1cc3a29d
JM		 6297 return;
6298
2fa980f0
JJ		 6299 wpas_p2p_action_tx_clear(wpa_s);
6300
1cc3a29d
JM		 6301 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6302 "operation request");
2f3101d8 6303 offchannel_clear_pending_action_tx(wpa_s);
1cc3a29d
JM		 6304}
6305
6306
b22128ef 6307int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
046ef4aa 6308 enum p2p_discovery_type type,
6d92fa6e 6309 unsigned int num_req_dev_types, const u8 *req_dev_types,
51775096 6310 const u8 *dev_id, unsigned int search_delay,
fa9f381f 6311 u8 seek_cnt, const char **seek_string, int freq)
b22128ef 6312{
1cc3a29d 6313 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef
JM		 6314 wpa_s->p2p_long_listen = 0;
6315
5bda43cd 6316 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
85a6cdb5 6317 wpa_s->p2p_in_provisioning)
9526fd29
JM		 6318 return -1;
6319
433cd2ce
JM		 6320 wpa_supplicant_cancel_sched_scan(wpa_s);
6321
046ef4aa 6322 return p2p_find(wpa_s->global->p2p, timeout, type,
37448ede 6323 num_req_dev_types, req_dev_types, dev_id,
fa9f381f 6324 search_delay, seek_cnt, seek_string, freq);
b22128ef
JM		 6325}
6326
6327
477b082c
SD		 6328static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6329 struct wpa_scan_results *scan_res)
6330{
6331 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6332
6333 if (wpa_s->p2p_scan_work) {
6334 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6335 wpa_s->p2p_scan_work = NULL;
6336 radio_work_done(work);
6337 }
6338
6339 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6340 return;
6341
6342 /*
6343 * Indicate that results have been processed so that the P2P module can
6344 * continue pending tasks.
6345 */
6346 p2p_scan_res_handled(wpa_s->global->p2p);
6347}
6348
6349
a6294141 6350static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
b22128ef 6351{
1cc3a29d 6352 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef 6353 wpa_s->p2p_long_listen = 0;
9d39057c 6354 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
ef922c4a 6355 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 6356
9526fd29
JM		 6357 if (wpa_s->global->p2p)
6358 p2p_stop_find(wpa_s->global->p2p);
477b082c
SD		 6359
6360 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6361 wpa_printf(MSG_DEBUG,
6362 "P2P: Do not consider the scan results after stop_find");
6363 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6364 }
8713a2e6
JM		 6365}
6366
6367
6368void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6369{
a6294141 6370 wpas_p2p_stop_find_oper(wpa_s);
93eca615
KV		 6371 if (!wpa_s->global->pending_group_iface_for_p2ps)
6372 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 6373}
6374
6375
6376static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6377{
6378 struct wpa_supplicant *wpa_s = eloop_ctx;
6379 wpa_s->p2p_long_listen = 0;
6380}
6381
6382
6383int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6384{
6385 int res;
6386
9526fd29
JM		 6387 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6388 return -1;
6389
433cd2ce 6390 wpa_supplicant_cancel_sched_scan(wpa_s);
1cc3a29d
JM		 6391 wpas_p2p_clear_pending_action_tx(wpa_s);
6392
b22128ef
JM		 6393 if (timeout == 0) {
6394 /*
6395 * This is a request for unlimited Listen state. However, at
6396 * least for now, this is mapped to a Listen state for one
6397 * hour.
6398 */
6399 timeout = 3600;
6400 }
6401 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6402 wpa_s->p2p_long_listen = 0;
6403
2bb747e2
JM		 6404 /*
6405 * Stop previous find/listen operation to avoid trying to request a new
6406 * remain-on-channel operation while the driver is still running the
6407 * previous one.
6408 */
6409 if (wpa_s->global->p2p)
6410 p2p_stop_find(wpa_s->global->p2p);
6411
b22128ef
JM		 6412 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6413 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
11fb02be 6414 wpa_s->p2p_long_listen = timeout * 1000;
b22128ef
JM		 6415 eloop_register_timeout(timeout, 0,
6416 wpas_p2p_long_listen_timeout,
6417 wpa_s, NULL);
6418 }
6419
6420 return res;
6421}
6422
6423
4c08c0bd 6424int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 6425 u8 *buf, size_t len, int p2p_group)
6426{
4c08c0bd
JM		 6427 struct wpabuf *p2p_ie;
6428 int ret;
6429
b22128ef
JM		 6430 if (wpa_s->global->p2p_disabled)
6431 return -1;
d63f1419
SD		 6432 /*
6433 * Advertize mandatory cross connection capability even on
6434 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6435 */
6436 if (wpa_s->conf->p2p_disabled && p2p_group)
1c2aa04c 6437 return -1;
b22128ef
JM		 6438 if (wpa_s->global->p2p == NULL)
6439 return -1;
e1f1509b
JM		 6440 if (bss == NULL)
6441 return -1;
b22128ef 6442
4c08c0bd
JM		 6443 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6444 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6445 p2p_group, p2p_ie);
6446 wpabuf_free(p2p_ie);
6447
6448 return ret;
b22128ef
JM		 6449}
6450
6451
6452int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
04a85e44 6453 const u8 *dst, const u8 *bssid,
734ddf61
MS		 6454 const u8 *ie, size_t ie_len,
6455 unsigned int rx_freq, int ssi_signal)
b22128ef
JM		 6456{
6457 if (wpa_s->global->p2p_disabled)
6458 return 0;
6459 if (wpa_s->global->p2p == NULL)
6460 return 0;
6461
2d43d37f 6462 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
734ddf61 6463 ie, ie_len, rx_freq)) {
2d43d37f
JB		 6464 case P2P_PREQ_NOT_P2P:
6465 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6466 ssi_signal);
6467 /* fall through */
6468 case P2P_PREQ_MALFORMED:
6469 case P2P_PREQ_NOT_LISTEN:
6470 case P2P_PREQ_NOT_PROCESSED:
6471 default: /* make gcc happy */
6472 return 0;
6473 case P2P_PREQ_PROCESSED:
6474 return 1;
6475 }
b22128ef
JM		 6476}
6477
6478
6479void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6480 const u8 *sa, const u8 *bssid,
6481 u8 category, const u8 *data, size_t len, int freq)
6482{
6483 if (wpa_s->global->p2p_disabled)
6484 return;
6485 if (wpa_s->global->p2p == NULL)
6486 return;
6487
6488 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6489 freq);
6490}
6491
6492
6493void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6494{
6495 if (wpa_s->global->p2p_disabled)
6496 return;
6497 if (wpa_s->global->p2p == NULL)
6498 return;
6499
6d92fa6e 6500 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
b22128ef
JM		 6501}
6502
6503
bd10d938 6504static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
b22128ef
JM		 6505{
6506 p2p_group_deinit(wpa_s->p2p_group);
6507 wpa_s->p2p_group = NULL;
a7fd39bb
JD		 6508
6509 wpa_s->ap_configured_cb = NULL;
6510 wpa_s->ap_configured_cb_ctx = NULL;
6511 wpa_s->ap_configured_cb_data = NULL;
6512 wpa_s->connect_without_scan = NULL;
b22128ef
JM		 6513}
6514
6515
6516int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6517{
6518 wpa_s->p2p_long_listen = 0;
6519
9526fd29
JM		 6520 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6521 return -1;
6522
b22128ef
JM		 6523 return p2p_reject(wpa_s->global->p2p, addr);
6524}
6525
6526
6527/* Invite to reinvoke a persistent group */
6528int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4d32c0c4 6529 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
20ea1ca4 6530 int ht40, int vht, int pref_freq)
b22128ef
JM		 6531{
6532 enum p2p_invite_role role;
0d08efa4
IP		 6533 u8 *bssid = NULL;
6534 int force_freq = 0;
5de4b721 6535 int res;
d0f61a4b 6536 int no_pref_freq_given = pref_freq == 0;
370017d9 6537 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
b22128ef 6538
dbca75f8 6539 wpa_s->global->p2p_invite_group = NULL;
77e4e853
JM		 6540 if (peer_addr)
6541 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6542 else
6543 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6544
4d32c0c4
JM		 6545 wpa_s->p2p_persistent_go_freq = freq;
6546 wpa_s->p2p_go_ht40 = !!ht40;
b22128ef
JM		 6547 if (ssid->mode == WPAS_MODE_P2P_GO) {
6548 role = P2P_INVITE_ROLE_GO;
6549 if (peer_addr == NULL) {
6550 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6551 "address in invitation command");
6552 return -1;
6553 }
6554 if (wpas_p2p_create_iface(wpa_s)) {
6555 if (wpas_p2p_add_group_interface(wpa_s,
6556 WPA_IF_P2P_GO) < 0) {
6557 wpa_printf(MSG_ERROR, "P2P: Failed to "
6558 "allocate a new interface for the "
6559 "group");
6560 return -1;
6561 }
6562 bssid = wpa_s->pending_interface_addr;
6563 } else
6564 bssid = wpa_s->own_addr;
6565 } else {
6566 role = P2P_INVITE_ROLE_CLIENT;
6567 peer_addr = ssid->bssid;
6568 }
6569 wpa_s->pending_invite_ssid_id = ssid->id;
6570
370017d9 6571 size = P2P_MAX_PREF_CHANNELS;
51e9f228 6572 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
370017d9
AK		 6573 role == P2P_INVITE_ROLE_GO,
6574 pref_freq_list, &size);
5de4b721
JM		 6575 if (res)
6576 return res;
fbcddaed 6577 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
79879f4a 6578
9526fd29
JM		 6579 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6580 return -1;
6581
d0f61a4b
JM		 6582 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6583 no_pref_freq_given && pref_freq > 0 &&
6584 wpa_s->num_multichan_concurrent > 1 &&
6585 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6586 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6587 pref_freq);
6588 pref_freq = 0;
6589 }
6590
b72b2ad3
IP		 6591 /*
6592 * Stop any find/listen operations before invitation and possibly
6593 * connection establishment.
6594 */
6595 wpas_p2p_stop_find_oper(wpa_s);
6596
b22128ef 6597 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a 6598 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
8e9f53c3 6599 1, pref_freq, -1);
b22128ef
JM		 6600}
6601
6602
6603/* Invite to join an active group */
6604int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6605 const u8 *peer_addr, const u8 *go_dev_addr)
6606{
6607 struct wpa_global *global = wpa_s->global;
6608 enum p2p_invite_role role;
0d08efa4 6609 u8 *bssid = NULL;
b22128ef 6610 struct wpa_ssid *ssid;
c427ac92 6611 int persistent;
73b54d63 6612 int freq = 0, force_freq = 0, pref_freq = 0;
5de4b721 6613 int res;
370017d9 6614 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
b22128ef 6615
4d32c0c4
JM		 6616 wpa_s->p2p_persistent_go_freq = 0;
6617 wpa_s->p2p_go_ht40 = 0;
20ea1ca4 6618 wpa_s->p2p_go_vht = 0;
4d32c0c4 6619
b22128ef
JM		 6620 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6621 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6622 break;
6623 }
6624 if (wpa_s == NULL) {
6625 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6626 return -1;
6627 }
6628
6629 ssid = wpa_s->current_ssid;
6630 if (ssid == NULL) {
6631 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6632 "invitation");
6633 return -1;
6634 }
6635
dbca75f8 6636 wpa_s->global->p2p_invite_group = wpa_s;
c427ac92
JM		 6637 persistent = ssid->p2p_persistent_group &&
6638 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6639 ssid->ssid, ssid->ssid_len);
6640
b22128ef
JM		 6641 if (ssid->mode == WPAS_MODE_P2P_GO) {
6642 role = P2P_INVITE_ROLE_ACTIVE_GO;
6643 bssid = wpa_s->own_addr;
6644 if (go_dev_addr == NULL)
d7e70476 6645 go_dev_addr = wpa_s->global->p2p_dev_addr;
73b54d63 6646 freq = ssid->frequency;
b22128ef
JM		 6647 } else {
6648 role = P2P_INVITE_ROLE_CLIENT;
6649 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6650 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6651 "invite to current group");
6652 return -1;
6653 }
6654 bssid = wpa_s->bssid;
6655 if (go_dev_addr == NULL &&
6656 !is_zero_ether_addr(wpa_s->go_dev_addr))
6657 go_dev_addr = wpa_s->go_dev_addr;
73b54d63
JM		 6658 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6659 (int) wpa_s->assoc_freq;
b22128ef 6660 }
bb79dc72 6661 wpa_s->parent->pending_invite_ssid_id = -1;
b22128ef 6662
9526fd29
JM		 6663 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6664 return -1;
6665
370017d9 6666 size = P2P_MAX_PREF_CHANNELS;
51e9f228 6667 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
370017d9
AK		 6668 role == P2P_INVITE_ROLE_ACTIVE_GO,
6669 pref_freq_list, &size);
5de4b721
JM		 6670 if (res)
6671 return res;
0d08efa4 6672 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
79879f4a 6673
b22128ef 6674 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a 6675 ssid->ssid, ssid->ssid_len, force_freq,
8e9f53c3 6676 go_dev_addr, persistent, pref_freq, -1);
b22128ef
JM		 6677}
6678
6679
6680void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6681{
6682 struct wpa_ssid *ssid = wpa_s->current_ssid;
b22128ef 6683 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 6684 int network_id = -1;
b22128ef 6685 int persistent;
b49d6ccb 6686 int freq;
25ef8529
JM		 6687 u8 ip[3 * 4];
6688 char ip_addr[100];
b22128ef 6689
73ccd083
JM		 6690 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6691 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6692 wpa_s->parent, NULL);
6693 }
361cdf34 6694
b22128ef 6695 if (!wpa_s->show_group_started || !ssid)
1b5d4714 6696 return;
b22128ef
JM		 6697
6698 wpa_s->show_group_started = 0;
6699
b22128ef
JM		 6700 os_memset(go_dev_addr, 0, ETH_ALEN);
6701 if (ssid->bssid_set)
6702 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6703 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6704 ssid->ssid_len);
6705 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6706
a0a9f3b0
JM		 6707 if (wpa_s->global->p2p_group_formation == wpa_s)
6708 wpa_s->global->p2p_group_formation = NULL;
6709
b49d6ccb
JJ		 6710 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6711 (int) wpa_s->assoc_freq;
25ef8529
JM		 6712
6713 ip_addr[0] = '\0';
6714 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
1d399771
JM		 6715 int res;
6716
6717 res = os_snprintf(ip_addr, sizeof(ip_addr),
6718 " ip_addr=%u.%u.%u.%u "
6719 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6720 ip[0], ip[1], ip[2], ip[3],
6721 ip[4], ip[5], ip[6], ip[7],
6722 ip[8], ip[9], ip[10], ip[11]);
6723 if (os_snprintf_error(sizeof(ip_addr), res))
6724 ip_addr[0] = '\0';
25ef8529
JM		 6725 }
6726
f8723e1e
JM		 6727 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6728 ssid->passphrase == NULL && ssid->psk_set ?
6729 ssid->psk : NULL,
6730 ssid->passphrase, go_dev_addr, persistent,
6731 ip_addr);
b22128ef
JM		 6732
6733 if (persistent)
4b6baa2f
JMB		 6734 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6735 ssid, go_dev_addr);
6736 if (network_id < 0)
6737 network_id = ssid->id;
6738 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
b22128ef
JM		 6739}
6740
6741
6742int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6743 u32 interval1, u32 duration2, u32 interval2)
6744{
c64e3a08
JM		 6745 int ret;
6746
9526fd29
JM		 6747 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6748 return -1;
3ac17eba 6749
b22128ef
JM		 6750 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6751 wpa_s->current_ssid == NULL ||
6752 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6753 return -1;
6754
c64e3a08
JM		 6755 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6756 wpa_s->own_addr, wpa_s->assoc_freq,
6757 duration1, interval1, duration2, interval2);
6758 if (ret == 0)
6759 wpa_s->waiting_presence_resp = 1;
6760
6761 return ret;
b22128ef
JM		 6762}
6763
6764
6765int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6766 unsigned int interval)
6767{
9526fd29
JM		 6768 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6769 return -1;
6770
b22128ef
JM		 6771 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6772}
6773
6774
c8106615
JM		 6775static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6776{
5fbddfdc
JM		 6777 if (wpa_s->current_ssid == NULL) {
6778 /*
c7deed74 6779 * current_ssid can be cleared when P2P client interface gets
5fbddfdc
JM		 6780 * disconnected, so assume this interface was used as P2P
6781 * client.
6782 */
6783 return 1;
6784 }
6785 return wpa_s->current_ssid->p2p_group &&
c8106615
JM		 6786 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6787}
6788
6789
3071e181
JM		 6790static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6791{
6792 struct wpa_supplicant *wpa_s = eloop_ctx;
6793
c8106615 6794 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
3071e181
JM		 6795 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6796 "disabled");
6797 return;
6798 }
6799
6800 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6801 "group");
8dba4aef 6802 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
3071e181
JM		 6803}
6804
6805
6806static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6807{
5f482d55 6808 int timeout;
c8106615 6809
dddc7045
JM		 6810 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6811 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6812
c8106615 6813 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3071e181
JM		 6814 return;
6815
c8106615
JM		 6816 timeout = wpa_s->conf->p2p_group_idle;
6817 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6818 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6819 timeout = P2P_MAX_CLIENT_IDLE;
6820
6821 if (timeout == 0)
3071e181
JM		 6822 return;
6823
5f482d55
JM		 6824 if (timeout < 0) {
6825 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6826 timeout = 0; /* special client mode no-timeout */
6827 else
6828 return;
6829 }
6830
8c472816
JM		 6831 if (wpa_s->p2p_in_provisioning) {
6832 /*
6833 * Use the normal group formation timeout during the
6834 * provisioning phase to avoid terminating this process too
6835 * early due to group idle timeout.
6836 */
6837 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6838 "during provisioning");
6839 return;
6840 }
6841
361cdf34
JM		 6842 if (wpa_s->show_group_started) {
6843 /*
6844 * Use the normal group formation timeout between the end of
6845 * the provisioning phase and completion of 4-way handshake to
6846 * avoid terminating this process too early due to group idle
6847 * timeout.
6848 */
6849 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6850 "while waiting for initial 4-way handshake to "
6851 "complete");
6852 return;
6853 }
6854
3071e181 6855 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
c8106615
JM		 6856 timeout);
6857 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6858 wpa_s, NULL);
3071e181
JM		 6859}
6860
6861
0aadd568
JM		 6862/* Returns 1 if the interface was removed */
6863int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6864 u16 reason_code, const u8 *ie, size_t ie_len,
6865 int locally_generated)
b22128ef 6866{
9526fd29 6867 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
0aadd568 6868 return 0;
b22128ef 6869
3fc14102
JM		 6870 if (!locally_generated)
6871 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6872 ie_len);
6873
6874 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6875 wpa_s->current_ssid &&
6876 wpa_s->current_ssid->p2p_group &&
6877 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6878 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6879 "session is ending");
0aadd568
JM		 6880 if (wpas_p2p_group_delete(wpa_s,
6881 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6882 > 0)
6883 return 1;
3fc14102 6884 }
0aadd568
JM		 6885
6886 return 0;
b22128ef
JM		 6887}
6888
6889
6890void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3fc14102
JM		 6891 u16 reason_code, const u8 *ie, size_t ie_len,
6892 int locally_generated)
b22128ef 6893{
9526fd29 6894 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 6895 return;
6896
3fc14102
JM		 6897 if (!locally_generated)
6898 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6899 ie_len);
b22128ef
JM		 6900}
6901
6902
6903void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6904{
6905 struct p2p_data *p2p = wpa_s->global->p2p;
6906
6907 if (p2p == NULL)
6908 return;
6909
4c010834
KL		 6910 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6911 return;
6912
b22128ef
JM		 6913 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6914 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6915
2f646b6e
JB		 6916 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6917 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
b22128ef 6918
b6e01800
JM		 6919 if (wpa_s->wps &&
6920 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6921 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6922
6923 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6924 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6925
6926 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6927 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6928 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6929 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6930 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6931 }
6932
2f646b6e
JB		 6933 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6934 p2p_set_sec_dev_types(p2p,
6935 (void *) wpa_s->conf->sec_device_type,
6936 wpa_s->conf->num_sec_device_types);
b22128ef 6937
f95cac27
JMB		 6938 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6939 int i;
6940 p2p_remove_wps_vendor_extensions(p2p);
6941 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6942 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6943 continue;
6944 p2p_add_wps_vendor_extension(
6945 p2p, wpa_s->conf->wps_vendor_ext[i]);
6946 }
6947 }
6948
b22128ef
JM		 6949 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6950 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6951 char country[3];
6952 country[0] = wpa_s->conf->country[0];
6953 country[1] = wpa_s->conf->country[1];
6954 country[2] = 0x04;
6955 p2p_set_country(p2p, country);
6956 }
6957
6958 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6959 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6960 wpa_s->conf->p2p_ssid_postfix ?
6961 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6962 0);
6963 }
0f66abd2
SS		 6964
6965 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6966 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
2463ba70
JS		 6967
6968 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6969 u8 reg_class, channel;
6970 int ret;
6971 unsigned int r;
e3bd6e9d
IP		 6972 u8 channel_forced;
6973
2463ba70
JS		 6974 if (wpa_s->conf->p2p_listen_reg_class &&
6975 wpa_s->conf->p2p_listen_channel) {
6976 reg_class = wpa_s->conf->p2p_listen_reg_class;
6977 channel = wpa_s->conf->p2p_listen_channel;
e3bd6e9d 6978 channel_forced = 1;
2463ba70
JS		 6979 } else {
6980 reg_class = 81;
6981 /*
6982 * Pick one of the social channels randomly as the
6983 * listen channel.
6984 */
df2508d7
JM		 6985 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6986 channel = 1;
6987 else
6988 channel = 1 + (r % 3) * 5;
e3bd6e9d 6989 channel_forced = 0;
2463ba70 6990 }
e3bd6e9d
IP		 6991 ret = p2p_set_listen_channel(p2p, reg_class, channel,
6992 channel_forced);
2463ba70
JS		 6993 if (ret)
6994 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6995 "failed: %d", ret);
6996 }
6997 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6998 u8 op_reg_class, op_channel, cfg_op_channel;
6999 int ret = 0;
7000 unsigned int r;
7001 if (wpa_s->conf->p2p_oper_reg_class &&
7002 wpa_s->conf->p2p_oper_channel) {
7003 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7004 op_channel = wpa_s->conf->p2p_oper_channel;
7005 cfg_op_channel = 1;
7006 } else {
7007 op_reg_class = 81;
7008 /*
7009 * Use random operation channel from (1, 6, 11)
7010 *if no other preference is indicated.
7011 */
df2508d7
JM		 7012 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7013 op_channel = 1;
7014 else
7015 op_channel = 1 + (r % 3) * 5;
2463ba70
JS		 7016 cfg_op_channel = 0;
7017 }
7018 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7019 cfg_op_channel);
7020 if (ret)
7021 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7022 "failed: %d", ret);
7023 }
21d996f7
JM		 7024
7025 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7026 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7027 wpa_s->conf->p2p_pref_chan) < 0) {
7028 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7029 "update failed");
7030 }
556b30da
JM		 7031
7032 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7033 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7034 "update failed");
7035 }
21d996f7 7036 }
1b928f96
JM		 7037
7038 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7039 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
b22128ef 7040}
aefb53bd
JM		 7041
7042
7043int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7044 int duration)
7045{
7046 if (!wpa_s->ap_iface)
7047 return -1;
7048 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7049 duration);
7050}
72044390
JM		 7051
7052
7053int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7054{
9526fd29 7055 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
72044390 7056 return -1;
72044390
JM		 7057
7058 wpa_s->global->cross_connection = enabled;
7059 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7060
7061 if (!enabled) {
7062 struct wpa_supplicant *iface;
7063
7064 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7065 {
7066 if (iface->cross_connect_enabled == 0)
7067 continue;
7068
7069 iface->cross_connect_enabled = 0;
7070 iface->cross_connect_in_use = 0;
92c4465b
JM		 7071 wpa_msg_global(iface->parent, MSG_INFO,
7072 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7073 iface->ifname,
7074 iface->cross_connect_uplink);
72044390
JM		 7075 }
7076 }
7077
7078 return 0;
7079}
7080
7081
7082static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7083{
7084 struct wpa_supplicant *iface;
7085
7086 if (!uplink->global->cross_connection)
7087 return;
7088
7089 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7090 if (!iface->cross_connect_enabled)
7091 continue;
7092 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7093 0)
7094 continue;
7095 if (iface->ap_iface == NULL)
7096 continue;
7097 if (iface->cross_connect_in_use)
7098 continue;
7099
7100 iface->cross_connect_in_use = 1;
92c4465b
JM		 7101 wpa_msg_global(iface->parent, MSG_INFO,
7102 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7103 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 7104 }
7105}
7106
7107
7108static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7109{
7110 struct wpa_supplicant *iface;
7111
7112 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7113 if (!iface->cross_connect_enabled)
7114 continue;
7115 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7116 0)
7117 continue;
7118 if (!iface->cross_connect_in_use)
7119 continue;
7120
92c4465b
JM		 7121 wpa_msg_global(iface->parent, MSG_INFO,
7122 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7123 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 7124 iface->cross_connect_in_use = 0;
7125 }
7126}
7127
7128
7129void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7130{
7131 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7132 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7133 wpa_s->cross_connect_disallowed)
7134 wpas_p2p_disable_cross_connect(wpa_s);
7135 else
7136 wpas_p2p_enable_cross_connect(wpa_s);
dddc7045
JM		 7137 if (!wpa_s->ap_iface &&
7138 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7139 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
72044390
JM		 7140}
7141
7142
7143void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7144{
7145 wpas_p2p_disable_cross_connect(wpa_s);
4c2c6751
JM		 7146 if (!wpa_s->ap_iface &&
7147 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7148 wpa_s, NULL))
3071e181 7149 wpas_p2p_set_group_idle_timeout(wpa_s);
72044390
JM		 7150}
7151
7152
7153static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7154{
7155 struct wpa_supplicant *iface;
7156
7157 if (!wpa_s->global->cross_connection)
7158 return;
7159
7160 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7161 if (iface == wpa_s)
7162 continue;
7163 if (iface->drv_flags &
7164 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7165 continue;
42a69725
JM		 7166 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7167 iface != wpa_s->parent)
72044390
JM		 7168 continue;
7169
7170 wpa_s->cross_connect_enabled = 1;
7171 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7172 sizeof(wpa_s->cross_connect_uplink));
7173 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7174 "%s to %s whenever uplink is available",
7175 wpa_s->ifname, wpa_s->cross_connect_uplink);
7176
7177 if (iface->ap_iface || iface->current_ssid == NULL ||
7178 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7179 iface->cross_connect_disallowed ||
7180 iface->wpa_state != WPA_COMPLETED)
7181 break;
7182
7183 wpa_s->cross_connect_in_use = 1;
92c4465b
JM		 7184 wpa_msg_global(wpa_s->parent, MSG_INFO,
7185 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7186 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390
JM		 7187 break;
7188 }
7189}
b73bf0a7
JM		 7190
7191
7192int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7193{
7194 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7195 !wpa_s->p2p_in_provisioning)
7196 return 0; /* not P2P client operation */
7197
7198 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7199 "session overlap");
148bb37f
JM		 7200 if (wpa_s != wpa_s->parent)
7201 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
d95c5994 7202 wpas_p2p_group_formation_failed(wpa_s, 0);
b73bf0a7
JM		 7203 return 1;
7204}
b5c9da8d
JM		 7205
7206
ace0fbdb
AS		 7207void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7208{
7209 struct wpa_supplicant *wpa_s = eloop_ctx;
7210 wpas_p2p_notif_pbc_overlap(wpa_s);
7211}
7212
7213
3a8f008a
IP		 7214void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7215 enum wpas_p2p_channel_update_trig trig)
b5c9da8d 7216{
51e9f228 7217 struct p2p_channels chan, cli_chan;
c2675c87
IP		 7218 struct wpa_used_freq_data *freqs = NULL;
7219 unsigned int num = wpa_s->num_multichan_concurrent;
b5c9da8d
JM		 7220
7221 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7222 return;
7223
c2675c87
IP		 7224 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7225 if (!freqs)
7226 return;
7227
7228 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7229
b5c9da8d 7230 os_memset(&chan, 0, sizeof(chan));
51e9f228
JM		 7231 os_memset(&cli_chan, 0, sizeof(cli_chan));
7232 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
b5c9da8d
JM		 7233 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7234 "channel list");
7235 return;
7236 }
7237
51e9f228 7238 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7b42862a 7239
c2675c87 7240 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7b42862a 7241
c2675c87
IP		 7242 /*
7243 * The used frequencies map changed, so it is possible that a GO is
7244 * using a channel that is no longer valid for P2P use. It is also
7245 * possible that due to policy consideration, it would be preferable to
7246 * move it to a frequency already used by other station interfaces.
7247 */
3a8f008a 7248 wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
c2675c87
IP		 7249
7250 os_free(freqs);
b5c9da8d 7251}
59eba7a2
JM		 7252
7253
50178335
JM		 7254static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7255 struct wpa_scan_results *scan_res)
7256{
7257 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7258}
7259
7260
59eba7a2
JM		 7261int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7262{
7263 struct wpa_global *global = wpa_s->global;
7264 int found = 0;
231bbd03 7265 const u8 *peer;
59eba7a2 7266
9526fd29
JM		 7267 if (global->p2p == NULL)
7268 return -1;
7269
59eba7a2
JM		 7270 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7271
7272 if (wpa_s->pending_interface_name[0] &&
7273 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7274 found = 1;
7275
231bbd03
SS		 7276 peer = p2p_get_go_neg_peer(global->p2p);
7277 if (peer) {
7278 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7279 MACSTR, MAC2STR(peer));
7280 p2p_unauthorize(global->p2p, peer);
75c208b9 7281 found = 1;
231bbd03
SS		 7282 }
7283
50178335
JM		 7284 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7285 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7286 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7287 found = 1;
7288 }
7289
7290 if (wpa_s->pending_pd_before_join) {
7291 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7292 wpa_s->pending_pd_before_join = 0;
7293 found = 1;
7294 }
7295
59eba7a2
JM		 7296 wpas_p2p_stop_find(wpa_s);
7297
7298 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7299 if (wpa_s == global->p2p_group_formation &&
a0a9f3b0
JM		 7300 (wpa_s->p2p_in_provisioning ||
7301 wpa_s->parent->pending_interface_type ==
7302 WPA_IF_P2P_CLIENT)) {
59eba7a2
JM		 7303 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7304 "formation found - cancelling",
7305 wpa_s->ifname);
7306 found = 1;
45fee6f0
SS		 7307 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7308 wpa_s->parent, NULL);
30b80389 7309 if (wpa_s->p2p_in_provisioning) {
d95c5994 7310 wpas_group_formation_completed(wpa_s, 0, 0);
30b80389
JM		 7311 break;
7312 }
8dba4aef
JM		 7313 wpas_p2p_group_delete(wpa_s,
7314 P2P_GROUP_REMOVAL_REQUESTED);
59eba7a2 7315 break;
f05cee97
JM		 7316 } else if (wpa_s->p2p_in_invitation) {
7317 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7318 wpa_s->ifname);
7319 found = 1;
d95c5994 7320 wpas_p2p_group_formation_failed(wpa_s, 0);
59eba7a2
JM		 7321 }
7322 }
7323
7324 if (!found) {
7325 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7326 return -1;
7327 }
7328
7329 return 0;
7330}
c973f386
JM		 7331
7332
7333void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7334{
7335 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7336 return;
7337
7338 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7339 "being available anymore");
8dba4aef 7340 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
c973f386 7341}
7cfc4ac3
AGS		 7342
7343
7344void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7345 int freq_24, int freq_5, int freq_overall)
7346{
7347 struct p2p_data *p2p = wpa_s->global->p2p;
152cff6b 7348 if (p2p == NULL)
7cfc4ac3
AGS		 7349 return;
7350 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7351}
9d562b79
SS		 7352
7353
7354int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7355{
7356 u8 peer[ETH_ALEN];
7357 struct p2p_data *p2p = wpa_s->global->p2p;
7358
152cff6b 7359 if (p2p == NULL)
9d562b79
SS		 7360 return -1;
7361
7362 if (hwaddr_aton(addr, peer))
7363 return -1;
7364
7365 return p2p_unauthorize(p2p, peer);
7366}
3103f345
JB		 7367
7368
7369/**
7370 * wpas_p2p_disconnect - Disconnect from a P2P Group
7371 * @wpa_s: Pointer to wpa_supplicant data
7372 * Returns: 0 on success, -1 on failure
7373 *
7374 * This can be used to disconnect from a group in which the local end is a P2P
7375 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7376 * virtual network interface was created for this group, that interface will be
7377 * removed. Otherwise, only the configured P2P group network will be removed
7378 * from the interface.
7379 */
7380int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7381{
7382
7383 if (wpa_s == NULL)
7384 return -1;
7385
0aadd568
JM		 7386 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7387 -1 : 0;
3103f345 7388}
303f60d3
JM		 7389
7390
7391int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7392{
ec01d5f6
JM		 7393 int ret;
7394
303f60d3
JM		 7395 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7396 return 0;
7397
ec01d5f6
JM		 7398 ret = p2p_in_progress(wpa_s->global->p2p);
7399 if (ret == 0) {
7400 /*
7401 * Check whether there is an ongoing WPS provisioning step (or
7402 * other parts of group formation) on another interface since
7403 * p2p_in_progress() does not report this to avoid issues for
7404 * scans during such provisioning step.
7405 */
7406 if (wpa_s->global->p2p_group_formation &&
7407 wpa_s->global->p2p_group_formation != wpa_s) {
7408 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7409 "in group formation",
7410 wpa_s->global->p2p_group_formation->ifname);
7411 ret = 1;
7412 }
7413 }
7414
c1c0b35f 7415 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
151ab808
JB		 7416 struct os_reltime now;
7417 os_get_reltime(&now);
7418 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7419 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
c1c0b35f
JM		 7420 /* Wait for the first client has expired */
7421 wpa_s->global->p2p_go_wait_client.sec = 0;
7422 } else {
7423 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7424 ret = 1;
7425 }
7426 }
7427
ec01d5f6 7428 return ret;
303f60d3 7429}
502618f7
JM		 7430
7431
7432void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7433 struct wpa_ssid *ssid)
502618f7
JM		 7434{
7435 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7436 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7437 wpa_s->parent, NULL) > 0) {
eb6f8c2b
AC		 7438 /**
7439 * Remove the network by scheduling the group formation
7440 * timeout to happen immediately. The teardown code
7441 * needs to be scheduled to run asynch later so that we
7442 * don't delete data from under ourselves unexpectedly.
7443 * Calling wpas_p2p_group_formation_timeout directly
7444 * causes a series of crashes in WPS failure scenarios.
7445 */
502618f7
JM		 7446 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7447 "P2P group network getting removed");
eb6f8c2b
AC		 7448 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7449 wpa_s->parent, NULL);
502618f7
JM		 7450 }
7451}
87f841a1
JM		 7452
7453
7454struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
c427ac92
JM		 7455 const u8 *addr, const u8 *ssid,
7456 size_t ssid_len)
87f841a1
JM		 7457{
7458 struct wpa_ssid *s;
fbdcfd57 7459 size_t i;
87f841a1
JM		 7460
7461 for (s = wpa_s->conf->ssid; s; s = s->next) {
fbdcfd57
JM		 7462 if (s->disabled != 2)
7463 continue;
c427ac92
JM		 7464 if (ssid &&
7465 (ssid_len != s->ssid_len ||
7466 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7467 continue;
01a57fe4
JM		 7468 if (addr == NULL) {
7469 if (s->mode == WPAS_MODE_P2P_GO)
7470 return s;
7471 continue;
7472 }
fbdcfd57
JM		 7473 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7474 return s; /* peer is GO in the persistent group */
7475 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7476 continue;
7477 for (i = 0; i < s->num_p2p_clients; i++) {
79cd993a 7478 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
fbdcfd57
JM		 7479 addr, ETH_ALEN) == 0)
7480 return s; /* peer is P2P client in persistent
7481 * group */
7482 }
87f841a1
JM		 7483 }
7484
7485 return NULL;
7486}
fbdcfd57
JM		 7487
7488
7489void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7490 const u8 *addr)
7491{
eab2b50d
JM		 7492 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7493 wpa_s->parent, NULL) > 0) {
7494 /*
7495 * This can happen if WPS provisioning step is not terminated
7496 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7497 * peer was able to connect, there is no need to time out group
41f85323
JM		 7498 * formation after this, though. In addition, this is used with
7499 * the initial connection wait on the GO as a separate formation
7500 * timeout and as such, expected to be hit after the initial WPS
7501 * provisioning step.
eab2b50d 7502 */
41f85323 7503 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
61fc9048
SD		 7504
7505 if (!wpa_s->p2p_go_group_formation_completed &&
7506 !wpa_s->group_formation_reported) {
7507 /*
7508 * GO has not yet notified group formation success since
7509 * the WPS step was not completed cleanly. Do that
7510 * notification now since the P2P Client was able to
7511 * connect and as such, must have received the
7512 * credential from the WPS step.
7513 */
7514 if (wpa_s->global->p2p)
7515 p2p_wps_success_cb(wpa_s->global->p2p, addr);
d95c5994 7516 wpas_group_formation_completed(wpa_s, 1, 0);
61fc9048 7517 }
41f85323
JM		 7518 }
7519 if (!wpa_s->p2p_go_group_formation_completed) {
7520 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7521 wpa_s->p2p_go_group_formation_completed = 1;
7522 wpa_s->global->p2p_group_formation = NULL;
7523 wpa_s->p2p_in_provisioning = 0;
f05cee97 7524 wpa_s->p2p_in_invitation = 0;
eab2b50d 7525 }
c1c0b35f 7526 wpa_s->global->p2p_go_wait_client.sec = 0;
fbdcfd57
JM		 7527 if (addr == NULL)
7528 return;
7529 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7530}
aa9bb764
JM		 7531
7532
b0e669be
JM		 7533static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7534 int group_added)
aa9bb764
JM		 7535{
7536 struct wpa_supplicant *group = wpa_s;
b0e669be
JM		 7537 int ret = 0;
7538
aa9bb764
JM		 7539 if (wpa_s->global->p2p_group_formation)
7540 group = wpa_s->global->p2p_group_formation;
de7b02fd 7541 wpa_s = wpa_s->global->p2p_init_wpa_s;
b80eb89d 7542 offchannel_send_action_done(wpa_s);
aa9bb764 7543 if (group_added)
b0e669be 7544 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
aa9bb764
JM		 7545 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7546 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7547 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7548 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
3bc462cb 7549 wpa_s->p2p_persistent_id,
e2308e4b 7550 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 7551 wpa_s->p2p_go_ht40,
7552 wpa_s->p2p_go_vht);
b0e669be 7553 return ret;
aa9bb764
JM		 7554}
7555
7556
7557int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7558{
b0e669be
JM		 7559 int res;
7560
aa9bb764
JM		 7561 if (!wpa_s->p2p_fallback_to_go_neg ||
7562 wpa_s->p2p_in_provisioning <= 5)
7563 return 0;
7564
b80eb89d
JM		 7565 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7566 return 0; /* peer operating as a GO */
7567
aa9bb764
JM		 7568 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7569 "fallback to GO Negotiation");
6b005121
JM		 7570 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7571 "reason=GO-not-found");
b0e669be 7572 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
aa9bb764 7573
b0e669be 7574 return res == 1 ? 2 : 1;
aa9bb764 7575}
05a77b3b
JM		 7576
7577
7578unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7579{
05a77b3b
JM		 7580 struct wpa_supplicant *ifs;
7581
7582 if (wpa_s->wpa_state > WPA_SCANNING) {
7583 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7584 "concurrent operation",
d3b20469
NS		 7585 wpa_s->conf->p2p_search_delay);
7586 return wpa_s->conf->p2p_search_delay;
05a77b3b
JM		 7587 }
7588
5b81927d
JM		 7589 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7590 radio_list) {
7591 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
05a77b3b
JM		 7592 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7593 "delay due to concurrent operation on "
7594 "interface %s",
d3b20469
NS		 7595 wpa_s->conf->p2p_search_delay,
7596 ifs->ifname);
7597 return wpa_s->conf->p2p_search_delay;
05a77b3b
JM		 7598 }
7599 }
7600
7601 return 0;
7602}
f85f545e
JM		 7603
7604
43c693c2
JM		 7605static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7606 struct wpa_ssid *s, const u8 *addr,
7607 int iface_addr)
7608{
7609 struct psk_list_entry *psk, *tmp;
7610 int changed = 0;
7611
7612 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7613 list) {
7614 if ((iface_addr && !psk->p2p &&
7615 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7616 (!iface_addr && psk->p2p &&
7617 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7618 wpa_dbg(wpa_s, MSG_DEBUG,
7619 "P2P: Remove persistent group PSK list entry for "
7620 MACSTR " p2p=%u",
7621 MAC2STR(psk->addr), psk->p2p);
7622 dl_list_del(&psk->list);
7623 os_free(psk);
7624 changed++;
7625 }
7626 }
7627
7628 return changed;
7629}
7630
7631
01a57fe4
JM		 7632void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7633 const u8 *p2p_dev_addr,
7634 const u8 *psk, size_t psk_len)
7635{
7636 struct wpa_ssid *ssid = wpa_s->current_ssid;
7637 struct wpa_ssid *persistent;
0bceb8d6 7638 struct psk_list_entry *p, *last;
01a57fe4
JM		 7639
7640 if (psk_len != sizeof(p->psk))
7641 return;
7642
7643 if (p2p_dev_addr) {
7644 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7645 " p2p_dev_addr=" MACSTR,
7646 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7647 if (is_zero_ether_addr(p2p_dev_addr))
7648 p2p_dev_addr = NULL;
7649 } else {
7650 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7651 MAC2STR(mac_addr));
7652 }
7653
7654 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7655 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7656 /* To be added to persistent group once created */
7657 if (wpa_s->global->add_psk == NULL) {
7658 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7659 if (wpa_s->global->add_psk == NULL)
7660 return;
7661 }
7662 p = wpa_s->global->add_psk;
7663 if (p2p_dev_addr) {
7664 p->p2p = 1;
7665 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7666 } else {
7667 p->p2p = 0;
7668 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7669 }
7670 os_memcpy(p->psk, psk, psk_len);
7671 return;
7672 }
7673
7674 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7675 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7676 return;
7677 }
7678
7679 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7680 ssid->ssid_len);
7681 if (!persistent) {
7682 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7683 return;
7684 }
7685
7686 p = os_zalloc(sizeof(*p));
7687 if (p == NULL)
7688 return;
7689 if (p2p_dev_addr) {
7690 p->p2p = 1;
7691 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7692 } else {
7693 p->p2p = 0;
7694 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7695 }
7696 os_memcpy(p->psk, psk, psk_len);
7697
0bceb8d6
JM		 7698 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7699 (last = dl_list_last(&persistent->psk_list,
7700 struct psk_list_entry, list))) {
01a57fe4
JM		 7701 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7702 MACSTR " (p2p=%u) to make room for a new one",
7703 MAC2STR(last->addr), last->p2p);
7704 dl_list_del(&last->list);
7705 os_free(last);
7706 }
7707
43c693c2
JM		 7708 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7709 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7710 p2p_dev_addr == NULL);
7711 if (p2p_dev_addr) {
7712 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7713 MACSTR, MAC2STR(p2p_dev_addr));
7714 } else {
7715 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7716 MAC2STR(mac_addr));
7717 }
01a57fe4
JM		 7718 dl_list_add(&persistent->psk_list, &p->list);
7719
01a57fe4
JM		 7720 if (wpa_s->parent->conf->update_config &&
7721 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7722 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
01a57fe4 7723}
f2c56602
JM		 7724
7725
7726static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7727 struct wpa_ssid *s, const u8 *addr,
7728 int iface_addr)
7729{
43c693c2 7730 int res;
f2c56602 7731
43c693c2 7732 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
2a33687e
JM		 7733 if (res > 0 && wpa_s->conf->update_config &&
7734 wpa_config_write(wpa_s->confname, wpa_s->conf))
7735 wpa_dbg(wpa_s, MSG_DEBUG,
7736 "P2P: Failed to update configuration");
f2c56602
JM		 7737}
7738
7739
7740static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7741 const u8 *peer, int iface_addr)
7742{
7743 struct hostapd_data *hapd;
7744 struct hostapd_wpa_psk *psk, *prev, *rem;
7745 struct sta_info *sta;
7746
7747 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7748 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7749 return;
7750
7751 /* Remove per-station PSK entry */
7752 hapd = wpa_s->ap_iface->bss[0];
7753 prev = NULL;
7754 psk = hapd->conf->ssid.wpa_psk;
7755 while (psk) {
7756 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7757 (!iface_addr &&
7758 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7759 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7760 MACSTR " iface_addr=%d",
7761 MAC2STR(peer), iface_addr);
7762 if (prev)
7763 prev->next = psk->next;
7764 else
7765 hapd->conf->ssid.wpa_psk = psk->next;
7766 rem = psk;
7767 psk = psk->next;
7768 os_free(rem);
7769 } else {
7770 prev = psk;
7771 psk = psk->next;
7772 }
7773 }
7774
7775 /* Disconnect from group */
7776 if (iface_addr)
7777 sta = ap_get_sta(hapd, peer);
7778 else
7779 sta = ap_get_sta_p2p(hapd, peer);
7780 if (sta) {
7781 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7782 " (iface_addr=%d) from group",
7783 MAC2STR(peer), iface_addr);
7784 hostapd_drv_sta_deauth(hapd, sta->addr,
7785 WLAN_REASON_DEAUTH_LEAVING);
7786 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7787 }
7788}
7789
7790
7791void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7792 int iface_addr)
7793{
7794 struct wpa_ssid *s;
7795 struct wpa_supplicant *w;
43677494 7796 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
f2c56602
JM		 7797
7798 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7799
7800 /* Remove from any persistent group */
43677494 7801 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
f2c56602
JM		 7802 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7803 continue;
7804 if (!iface_addr)
43677494
BR		 7805 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
7806 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
f2c56602
JM		 7807 }
7808
7809 /* Remove from any operating group */
7810 for (w = wpa_s->global->ifaces; w; w = w->next)
7811 wpas_p2p_remove_client_go(w, peer, iface_addr);
7812}
5bf9a6c8
JM		 7813
7814
813e7b36
JM		 7815static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7816{
7817 struct wpa_supplicant *wpa_s = eloop_ctx;
7818 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7819}
7820
7821
8567866d
JJ		 7822static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7823{
7824 struct wpa_supplicant *wpa_s = eloop_ctx;
7825
7826 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7827 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7828}
7829
7830
7831int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7832 struct wpa_ssid *ssid)
7833{
7834 struct wpa_supplicant *iface;
7835
7836 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7837 if (!iface->current_ssid ||
7838 iface->current_ssid->frequency == freq ||
7839 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7840 !iface->current_ssid->p2p_group))
7841 continue;
7842
7843 /* Remove the connection with least priority */
7844 if (!wpas_is_p2p_prioritized(iface)) {
7845 /* STA connection has priority over existing
7846 * P2P connection, so remove the interface. */
7847 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7848 eloop_register_timeout(0, 0,
7849 wpas_p2p_group_freq_conflict,
7850 iface, NULL);
7851 /* If connection in progress is P2P connection, do not
7852 * proceed for the connection. */
7853 if (wpa_s == iface)
7854 return -1;
7855 else
7856 return 0;
7857 } else {
7858 /* P2P connection has priority, disable the STA network
7859 */
7860 wpa_supplicant_disable_network(wpa_s->global->ifaces,
7861 ssid);
7862 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7863 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7864 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7865 ETH_ALEN);
7866 /* If P2P connection is in progress, continue
7867 * connecting...*/
7868 if (wpa_s == iface)
7869 return 0;
7870 else
7871 return -1;
7872 }
7873 }
7874
7875 return 0;
7876}
7877
7878
5bf9a6c8
JM		 7879int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7880{
7881 struct wpa_ssid *ssid = wpa_s->current_ssid;
7882
7883 if (ssid == NULL || !ssid->p2p_group)
7884 return 0;
7885
7886 if (wpa_s->p2p_last_4way_hs_fail &&
7887 wpa_s->p2p_last_4way_hs_fail == ssid) {
7888 u8 go_dev_addr[ETH_ALEN];
7889 struct wpa_ssid *persistent;
7890
7891 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7892 ssid->ssid,
7893 ssid->ssid_len) <= 0) {
7894 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7895 goto disconnect;
7896 }
7897
7898 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7899 MACSTR, MAC2STR(go_dev_addr));
7900 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7901 ssid->ssid,
7902 ssid->ssid_len);
7903 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7904 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7905 goto disconnect;
7906 }
7907 wpa_msg_global(wpa_s->parent, MSG_INFO,
7908 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7909 persistent->id);
7910 disconnect:
7911 wpa_s->p2p_last_4way_hs_fail = NULL;
813e7b36
JM		 7912 /*
7913 * Remove the group from a timeout to avoid issues with caller
7914 * continuing to use the interface if this is on a P2P group
7915 * interface.
7916 */
7917 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7918 wpa_s, NULL);
5bf9a6c8
JM		 7919 return 1;
7920 }
7921
7922 wpa_s->p2p_last_4way_hs_fail = ssid;
7923 return 0;
7924}
93588780
JM		 7925
7926
7927#ifdef CONFIG_WPS_NFC
7928
7929static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7930 struct wpabuf *p2p)
7931{
7932 struct wpabuf *ret;
59b45d1a 7933 size_t wsc_len;
93588780
JM		 7934
7935 if (p2p == NULL) {
7936 wpabuf_free(wsc);
7937 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7938 return NULL;
7939 }
7940
59b45d1a
JM		 7941 wsc_len = wsc ? wpabuf_len(wsc) : 0;
7942 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
93588780
JM		 7943 if (ret == NULL) {
7944 wpabuf_free(wsc);
7945 wpabuf_free(p2p);
7946 return NULL;
7947 }
7948
59b45d1a
JM		 7949 wpabuf_put_be16(ret, wsc_len);
7950 if (wsc)
7951 wpabuf_put_buf(ret, wsc);
93588780
JM		 7952 wpabuf_put_be16(ret, wpabuf_len(p2p));
7953 wpabuf_put_buf(ret, p2p);
7954
7955 wpabuf_free(wsc);
7956 wpabuf_free(p2p);
7957 wpa_hexdump_buf(MSG_DEBUG,
7958 "P2P: Generated NFC connection handover message", ret);
7959
7960 if (ndef && ret) {
7961 struct wpabuf *tmp;
7962 tmp = ndef_build_p2p(ret);
7963 wpabuf_free(ret);
7964 if (tmp == NULL) {
7965 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7966 return NULL;
7967 }
7968 ret = tmp;
7969 }
7970
7971 return ret;
7972}
7973
7974
abe44e3c
JM		 7975static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7976 struct wpa_ssid **ssid, u8 *go_dev_addr)
59b45d1a
JM		 7977{
7978 struct wpa_supplicant *iface;
7979
abe44e3c
JM		 7980 if (go_dev_addr)
7981 os_memset(go_dev_addr, 0, ETH_ALEN);
7982 if (ssid)
7983 *ssid = NULL;
59b45d1a
JM		 7984 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7985 if (iface->wpa_state < WPA_ASSOCIATING ||
7986 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7987 !iface->current_ssid->p2p_group ||
7988 iface->current_ssid->mode != WPAS_MODE_INFRA)
7989 continue;
abe44e3c
JM		 7990 if (ssid)
7991 *ssid = iface->current_ssid;
7992 if (go_dev_addr)
7993 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
59b45d1a
JM		 7994 return iface->assoc_freq;
7995 }
7996 return 0;
7997}
7998
7999
93588780
JM		 8000struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8001 int ndef)
8002{
8003 struct wpabuf *wsc, *p2p;
abe44e3c
JM		 8004 struct wpa_ssid *ssid;
8005 u8 go_dev_addr[ETH_ALEN];
8006 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
93588780
JM		 8007
8008 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8009 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8010 return NULL;
8011 }
8012
8013 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8014 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8015 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8016 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8017 return NULL;
8018 }
8019
59b45d1a
JM		 8020 if (cli_freq == 0) {
8021 wsc = wps_build_nfc_handover_req_p2p(
8022 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8023 } else
8024 wsc = NULL;
abe44e3c
JM		 8025 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8026 go_dev_addr, ssid ? ssid->ssid : NULL,
8027 ssid ? ssid->ssid_len : 0);
93588780
JM		 8028
8029 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8030}
8031
8032
8033struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8034 int ndef, int tag)
8035{
8036 struct wpabuf *wsc, *p2p;
abe44e3c
JM		 8037 struct wpa_ssid *ssid;
8038 u8 go_dev_addr[ETH_ALEN];
8039 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
93588780
JM		 8040
8041 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8042 return NULL;
8043
8044 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8045 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8046 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8047 return NULL;
8048
59b45d1a
JM		 8049 if (cli_freq == 0) {
8050 wsc = wps_build_nfc_handover_sel_p2p(
8051 wpa_s->parent->wps,
8052 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8053 DEV_PW_NFC_CONNECTION_HANDOVER,
8054 wpa_s->conf->wps_nfc_dh_pubkey,
8055 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8056 } else
8057 wsc = NULL;
abe44e3c
JM		 8058 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8059 go_dev_addr, ssid ? ssid->ssid : NULL,
8060 ssid ? ssid->ssid_len : 0);
93588780
JM		 8061
8062 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8063}
8064
db6ae69e
JM		 8065
8066static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8067 struct p2p_nfc_params *params)
8068{
8069 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
23318bea
JM		 8070 "connection handover (freq=%d)",
8071 params->go_freq);
8072
8073 if (params->go_freq && params->go_ssid_len) {
8074 wpa_s->p2p_wps_method = WPS_NFC;
8075 wpa_s->pending_join_wps_method = WPS_NFC;
8076 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8077 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8078 ETH_ALEN);
8079 return wpas_p2p_join_start(wpa_s, params->go_freq,
8080 params->go_ssid,
8081 params->go_ssid_len);
8082 }
8083
db6ae69e
JM		 8084 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8085 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
23318bea 8086 params->go_freq, -1, 0, 1, 1);
db6ae69e
JM		 8087}
8088
8089
8090static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8e9f53c3 8091 struct p2p_nfc_params *params, int tag)
db6ae69e 8092{
8e9f53c3
JM		 8093 int res, persistent;
8094 struct wpa_ssid *ssid;
8095
db6ae69e
JM		 8096 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8097 "connection handover");
8098 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8e9f53c3 8099 ssid = wpa_s->current_ssid;
db6ae69e
JM		 8100 if (ssid == NULL)
8101 continue;
8102 if (ssid->mode != WPAS_MODE_P2P_GO)
8103 continue;
8104 if (wpa_s->ap_iface == NULL)
8105 continue;
8106 break;
8107 }
8108 if (wpa_s == NULL) {
8109 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8110 return -1;
8111 }
8112
8113 if (wpa_s->parent->p2p_oob_dev_pw_id !=
8114 DEV_PW_NFC_CONNECTION_HANDOVER &&
8115 !wpa_s->parent->p2p_oob_dev_pw) {
8116 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8117 return -1;
8118 }
8e9f53c3 8119 res = wpas_ap_wps_add_nfc_pw(
db6ae69e
JM		 8120 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
8121 wpa_s->parent->p2p_oob_dev_pw,
8122 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
8123 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8e9f53c3
JM		 8124 if (res)
8125 return res;
8126
8127 if (!tag) {
8128 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8129 return 0;
8130 }
8131
8132 if (!params->peer ||
8133 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8134 return 0;
8135
8136 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8137 " to join", MAC2STR(params->peer->p2p_device_addr));
8138
8139 wpa_s->global->p2p_invite_group = wpa_s;
8140 persistent = ssid->p2p_persistent_group &&
8141 wpas_p2p_get_persistent(wpa_s->parent,
8142 params->peer->p2p_device_addr,
8143 ssid->ssid, ssid->ssid_len);
8144 wpa_s->parent->pending_invite_ssid_id = -1;
8145
8146 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8147 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8148 ssid->ssid, ssid->ssid_len, ssid->frequency,
8149 wpa_s->global->p2p_dev_addr, persistent, 0,
8150 wpa_s->parent->p2p_oob_dev_pw_id);
db6ae69e
JM		 8151}
8152
8153
8154static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
b56f6c88
JM		 8155 struct p2p_nfc_params *params,
8156 int forced_freq)
db6ae69e
JM		 8157{
8158 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8159 "connection handover");
8160 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8161 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
b56f6c88 8162 forced_freq, -1, 0, 1, 1);
db6ae69e
JM		 8163}
8164
8165
8166static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
b56f6c88
JM		 8167 struct p2p_nfc_params *params,
8168 int forced_freq)
db6ae69e
JM		 8169{
8170 int res;
8171
8172 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8173 "connection handover");
8174 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8175 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
b56f6c88 8176 forced_freq, -1, 0, 1, 1);
db6ae69e
JM		 8177 if (res)
8178 return res;
8179
8180 res = wpas_p2p_listen(wpa_s, 60);
8181 if (res) {
8182 p2p_unauthorize(wpa_s->global->p2p,
8183 params->peer->p2p_device_addr);
8184 }
8185
8186 return res;
8187}
8188
8189
8190static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8191 const struct wpabuf *data,
b56f6c88 8192 int sel, int tag, int forced_freq)
db6ae69e
JM		 8193{
8194 const u8 *pos, *end;
8195 u16 len, id;
8196 struct p2p_nfc_params params;
8197 int res;
8198
8199 os_memset(&params, 0, sizeof(params));
8200 params.sel = sel;
8201
8202 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8203
8204 pos = wpabuf_head(data);
8205 end = pos + wpabuf_len(data);
8206
8207 if (end - pos < 2) {
8208 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8209 "attributes");
8210 return -1;
8211 }
8212 len = WPA_GET_BE16(pos);
8213 pos += 2;
c061ae59 8214 if (len > end - pos) {
db6ae69e
JM		 8215 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8216 "attributes");
8217 return -1;
8218 }
8219 params.wsc_attr = pos;
8220 params.wsc_len = len;
8221 pos += len;
8222
8223 if (end - pos < 2) {
8224 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8225 "attributes");
8226 return -1;
8227 }
8228 len = WPA_GET_BE16(pos);
8229 pos += 2;
c061ae59 8230 if (len > end - pos) {
db6ae69e
JM		 8231 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8232 "attributes");
8233 return -1;
8234 }
8235 params.p2p_attr = pos;
8236 params.p2p_len = len;
8237 pos += len;
8238
8239 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8240 params.wsc_attr, params.wsc_len);
8241 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8242 params.p2p_attr, params.p2p_len);
8243 if (pos < end) {
8244 wpa_hexdump(MSG_DEBUG,
8245 "P2P: Ignored extra data after P2P attributes",
8246 pos, end - pos);
8247 }
8248
8249 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, &params);
8250 if (res)
8251 return res;
8252
74df9ecd
JM		 8253 if (params.next_step == NO_ACTION)
8254 return 0;
8255
8256 if (params.next_step == BOTH_GO) {
8257 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8258 MAC2STR(params.peer->p2p_device_addr));
8259 return 0;
8260 }
8261
59b45d1a 8262 if (params.next_step == PEER_CLIENT) {
abe44e3c
JM		 8263 if (!is_zero_ether_addr(params.go_dev_addr)) {
8264 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8265 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8266 " ssid=\"%s\"",
8267 MAC2STR(params.peer->p2p_device_addr),
8268 params.go_freq,
8269 MAC2STR(params.go_dev_addr),
8270 wpa_ssid_txt(params.go_ssid,
8271 params.go_ssid_len));
8272 } else {
8273 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8274 "peer=" MACSTR " freq=%d",
8275 MAC2STR(params.peer->p2p_device_addr),
8276 params.go_freq);
8277 }
59b45d1a
JM		 8278 return 0;
8279 }
8280
abe44e3c 8281 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
59b45d1a
JM		 8282 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8283 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8284 return 0;
8285 }
8286
db6ae69e
JM		 8287 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8288 wpa_s->p2p_oob_dev_pw = NULL;
8289
8290 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8291 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8292 "received");
8293 return -1;
8294 }
8295
8296 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8297 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8298 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8299 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8300 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8301 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8302 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8303
8304 if (tag) {
8305 if (id < 0x10) {
8306 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8307 "peer OOB Device Password Id %u", id);
8308 return -1;
8309 }
8310 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8311 "Device Password Id %u", id);
8312 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8313 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8314 params.oob_dev_pw_len -
8315 WPS_OOB_PUBKEY_HASH_LEN - 2);
8316 wpa_s->p2p_oob_dev_pw_id = id;
8317 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8318 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8319 params.oob_dev_pw_len -
8320 WPS_OOB_PUBKEY_HASH_LEN - 2);
8321 if (wpa_s->p2p_oob_dev_pw == NULL)
8322 return -1;
8323
8324 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8325 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8326 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8327 return -1;
8328 } else {
8329 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8330 "without Device Password");
8331 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8332 }
8333
8334 switch (params.next_step) {
8335 case NO_ACTION:
74df9ecd 8336 case BOTH_GO:
59b45d1a 8337 case PEER_CLIENT:
74df9ecd 8338 /* already covered above */
db6ae69e
JM		 8339 return 0;
8340 case JOIN_GROUP:
8341 return wpas_p2p_nfc_join_group(wpa_s, &params);
8342 case AUTH_JOIN:
8e9f53c3 8343 return wpas_p2p_nfc_auth_join(wpa_s, &params, tag);
db6ae69e 8344 case INIT_GO_NEG:
b56f6c88 8345 return wpas_p2p_nfc_init_go_neg(wpa_s, &params, forced_freq);
db6ae69e
JM		 8346 case RESP_GO_NEG:
8347 /* TODO: use own OOB Dev Pw */
b56f6c88 8348 return wpas_p2p_nfc_resp_go_neg(wpa_s, &params, forced_freq);
db6ae69e
JM		 8349 }
8350
8351 return -1;
8352}
8353
8354
dd37a938 8355int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
b56f6c88 8356 const struct wpabuf *data, int forced_freq)
dd37a938
JM		 8357{
8358 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8359 return -1;
8360
b56f6c88 8361 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
dd37a938
JM		 8362}
8363
8364
db6ae69e
JM		 8365int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8366 const struct wpabuf *req,
b56f6c88 8367 const struct wpabuf *sel, int forced_freq)
db6ae69e
JM		 8368{
8369 struct wpabuf *tmp;
8370 int ret;
8371
8372 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8373 return -1;
8374
8375 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8376
8377 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8378 wpabuf_head(req), wpabuf_len(req));
8379 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8380 wpabuf_head(sel), wpabuf_len(sel));
b56f6c88
JM		 8381 if (forced_freq)
8382 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
db6ae69e
JM		 8383 tmp = ndef_parse_p2p(init ? sel : req);
8384 if (tmp == NULL) {
8385 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8386 return -1;
8387 }
8388
b56f6c88
JM		 8389 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8390 forced_freq);
db6ae69e
JM		 8391 wpabuf_free(tmp);
8392
8393 return ret;
8394}
8395
c4f87a70
JM		 8396
8397int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8398{
8399 const u8 *if_addr;
8400 int go_intent = wpa_s->conf->p2p_go_intent;
dd876771 8401 struct wpa_supplicant *iface;
c4f87a70
JM		 8402
8403 if (wpa_s->global->p2p == NULL)
8404 return -1;
8405
8406 if (!enabled) {
dd876771
JM		 8407 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8408 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8409 {
8410 if (!iface->ap_iface)
8411 continue;
8412 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8413 }
c4f87a70
JM		 8414 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8415 0, NULL);
8416 if (wpa_s->p2p_nfc_tag_enabled)
8417 wpas_p2p_remove_pending_group_interface(wpa_s);
8418 wpa_s->p2p_nfc_tag_enabled = 0;
8419 return 0;
8420 }
8421
8422 if (wpa_s->global->p2p_disabled)
8423 return -1;
8424
8425 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8426 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8427 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8428 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8429 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8430 "to allow static handover cases");
8431 return -1;
8432 }
8433
dd876771
JM		 8434 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8435
c4f87a70
JM		 8436 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8437 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8438 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8439 if (wpa_s->p2p_oob_dev_pw == NULL)
8440 return -1;
8441 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8442
67d39cfb
MB		 8443 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8444 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8445 /*
8446 * P2P Group Interface present and the command came on group
8447 * interface, so enable the token for the current interface.
8448 */
8449 wpa_s->create_p2p_iface = 0;
8450 } else {
8451 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8452 }
c4f87a70
JM		 8453
8454 if (wpa_s->create_p2p_iface) {
8455 enum wpa_driver_if_type iftype;
8456 /* Prepare to add a new interface for the group */
8457 iftype = WPA_IF_P2P_GROUP;
8458 if (go_intent == 15)
8459 iftype = WPA_IF_P2P_GO;
8460 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8461 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8462 "interface for the group");
8463 return -1;
8464 }
8465
8466 if_addr = wpa_s->pending_interface_addr;
8467 } else
8468 if_addr = wpa_s->own_addr;
8469
8470 wpa_s->p2p_nfc_tag_enabled = enabled;
8471
dd876771
JM		 8472 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8473 struct hostapd_data *hapd;
8474 if (iface->ap_iface == NULL)
8475 continue;
8476 hapd = iface->ap_iface->bss[0];
8477 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8478 hapd->conf->wps_nfc_dh_pubkey =
8479 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8480 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8481 hapd->conf->wps_nfc_dh_privkey =
8482 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8483 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8484 hapd->conf->wps_nfc_dev_pw =
8485 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8486 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8487
8488 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8489 wpa_dbg(iface, MSG_DEBUG,
8490 "P2P: Failed to enable NFC Tag for GO");
8491 }
8492 }
c4f87a70
JM		 8493 p2p_set_authorized_oob_dev_pw_id(
8494 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8495 if_addr);
8496
8497 return 0;
8498}
8499
93588780 8500#endif /* CONFIG_WPS_NFC */
e3bd6e9d
IP		 8501
8502
8503static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8504 struct wpa_used_freq_data *freqs,
8505 unsigned int num)
8506{
8507 u8 curr_chan, cand, chan;
8508 unsigned int i;
8509
c2675c87
IP		 8510 /*
8511 * If possible, optimize the Listen channel to be a channel that is
8512 * already used by one of the other interfaces.
8513 */
8514 if (!wpa_s->conf->p2p_optimize_listen_chan)
8515 return;
8516
8517 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8518 return;
8519
e3bd6e9d
IP		 8520 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8521 for (i = 0, cand = 0; i < num; i++) {
8522 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8523 if (curr_chan == chan) {
8524 cand = 0;
8525 break;
8526 }
8527
8528 if (chan == 1 || chan == 6 || chan == 11)
8529 cand = chan;
8530 }
8531
8532 if (cand) {
8533 wpa_dbg(wpa_s, MSG_DEBUG,
abe96d06 8534 "P2P: Update Listen channel to %u based on operating channel",
e3bd6e9d
IP		 8535 cand);
8536 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8537 }
8538}
8539
8540
1a471ff0
IP		 8541static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8542{
73afc20d
AO		 8543 struct hostapd_config *conf;
8544 struct p2p_go_neg_results params;
8545 struct csa_settings csa_settings;
8546 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8547 int old_freq = current_ssid->frequency;
8548 int ret;
73afc20d 8549
1a471ff0
IP		 8550 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8551 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8552 return -1;
8553 }
8554
73afc20d
AO		 8555 /*
8556 * TODO: This function may not always work correctly. For example,
8557 * when we have a running GO and a BSS on a DFS channel.
8558 */
8559 if (wpas_p2p_init_go_params(wpa_s, &params, 0, 0, 0, NULL)) {
8560 wpa_dbg(wpa_s, MSG_DEBUG,
8561 "P2P CSA: Failed to select new frequency for GO");
8562 return -1;
8563 }
8564
8565 if (current_ssid->frequency == params.freq) {
8566 wpa_dbg(wpa_s, MSG_DEBUG,
8567 "P2P CSA: Selected same frequency - not moving GO");
8568 return 0;
8569 }
8570
8571 conf = hostapd_config_defaults();
8572 if (!conf) {
8573 wpa_dbg(wpa_s, MSG_DEBUG,
8574 "P2P CSA: Failed to allocate default config");
8575 return -1;
8576 }
8577
8578 current_ssid->frequency = params.freq;
8579 if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
8580 wpa_dbg(wpa_s, MSG_DEBUG,
8581 "P2P CSA: Failed to create new GO config");
8582 ret = -1;
8583 goto out;
8584 }
8585
8586 if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
8587 wpa_dbg(wpa_s, MSG_DEBUG,
8588 "P2P CSA: CSA to a different band is not supported");
8589 ret = -1;
8590 goto out;
8591 }
8592
8593 os_memset(&csa_settings, 0, sizeof(csa_settings));
8594 csa_settings.cs_count = P2P_GO_CSA_COUNT;
8595 csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
8596 csa_settings.freq_params.freq = params.freq;
73afc20d
AO		 8597 csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
8598 csa_settings.freq_params.ht_enabled = conf->ieee80211n;
8599 csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
8600
8601 if (conf->ieee80211ac) {
8602 int freq1 = 0, freq2 = 0;
7d82170a
LC		 8603 u8 chan, opclass;
8604
8605 if (ieee80211_freq_to_channel_ext(params.freq,
8606 conf->secondary_channel,
8607 conf->vht_oper_chwidth,
8608 &opclass, &chan) ==
8609 NUM_HOSTAPD_MODES) {
8610 wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
8611 ret = -1;
8612 goto out;
8613 }
73afc20d
AO		 8614
8615 if (conf->vht_oper_centr_freq_seg0_idx)
8616 freq1 = ieee80211_chan_to_freq(
7d82170a 8617 NULL, opclass,
73afc20d
AO		 8618 conf->vht_oper_centr_freq_seg0_idx);
8619
8620 if (conf->vht_oper_centr_freq_seg1_idx)
8621 freq2 = ieee80211_chan_to_freq(
7d82170a 8622 NULL, opclass,
73afc20d
AO		 8623 conf->vht_oper_centr_freq_seg1_idx);
8624
8625 if (freq1 < 0 || freq2 < 0) {
8626 wpa_dbg(wpa_s, MSG_DEBUG,
8627 "P2P CSA: Selected invalid VHT center freqs");
8628 ret = -1;
8629 goto out;
8630 }
8631
8632 csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
8633 csa_settings.freq_params.center_freq1 = freq1;
8634 csa_settings.freq_params.center_freq2 = freq2;
8635
8636 switch (conf->vht_oper_chwidth) {
8637 case VHT_CHANWIDTH_80MHZ:
8638 case VHT_CHANWIDTH_80P80MHZ:
8639 csa_settings.freq_params.bandwidth = 80;
8640 break;
8641 case VHT_CHANWIDTH_160MHZ:
8642 csa_settings.freq_params.bandwidth = 160;
8643 break;
8644 }
8645 }
8646
8647 ret = ap_switch_channel(wpa_s, &csa_settings);
8648out:
8649 current_ssid->frequency = old_freq;
8650 hostapd_config_free(conf);
8651 return ret;
1a471ff0
IP		 8652}
8653
8654
8655static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
8656{
8657 struct p2p_go_neg_results params;
8658 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8659
8660 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
8661
8662 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
8663 current_ssid->frequency);
8664
8665 /* Stop the AP functionality */
8666 /* TODO: Should do this in a way that does not indicated to possible
8667 * P2P Clients in the group that the group is terminated. */
8668 wpa_supplicant_ap_deinit(wpa_s);
8669
8670 /* Reselect the GO frequency */
8671 if (wpas_p2p_init_go_params(wpa_s, &params, 0, 0, 0, NULL)) {
8672 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
8673 wpas_p2p_group_delete(wpa_s,
8674 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8675 return;
8676 }
8677 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
8678 params.freq);
8679
8680 if (params.freq &&
8681 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
8682 wpa_printf(MSG_DEBUG,
8683 "P2P: Selected freq (%u MHz) is not valid for P2P",
8684 params.freq);
8685 wpas_p2p_group_delete(wpa_s,
8686 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8687 return;
8688 }
8689
8690 /* Update the frequency */
8691 current_ssid->frequency = params.freq;
8692 wpa_s->connect_without_scan = current_ssid;
8693 wpa_s->reassociate = 1;
8694 wpa_s->disconnected = 0;
8695 wpa_supplicant_req_scan(wpa_s, 0, 0);
8696}
8697
8698
8699static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
8700{
8701 struct wpa_supplicant *wpa_s = eloop_ctx;
8702
8703 if (!wpa_s->ap_iface || !wpa_s->current_ssid)
8704 return;
8705
5e1f4805
IP		 8706 wpas_p2p_go_update_common_freqs(wpa_s);
8707
3bafb0d8
AO		 8708 /* Do not move GO in the middle of a CSA */
8709 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8710 wpa_printf(MSG_DEBUG,
8711 "P2P: CSA is in progress - not moving GO");
8712 return;
8713 }
8714
1a471ff0
IP		 8715 /*
8716 * First, try a channel switch flow. If it is not supported or fails,
8717 * take down the GO and bring it up again.
8718 */
8719 if (wpas_p2p_move_go_csa(wpa_s) < 0)
8720 wpas_p2p_move_go_no_csa(wpa_s);
8721}
8722
8723
dae4c82c
IP		 8724static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
8725{
8726 struct wpa_supplicant *wpa_s = eloop_ctx;
8727 struct wpa_used_freq_data *freqs = NULL;
8728 unsigned int num = wpa_s->num_multichan_concurrent;
8729
8730 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8731 if (!freqs)
8732 return;
8733
8734 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8735
8736 /* Previous attempt to move a GO was not possible -- try again. */
3a8f008a
IP		 8737 wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
8738 WPAS_P2P_CHANNEL_UPDATE_ANY);
dae4c82c
IP		 8739
8740 os_free(freqs);
8741}
8742
8743
1a471ff0
IP		 8744/*
8745 * Consider moving a GO from its currently used frequency:
8746 * 1. It is possible that due to regulatory consideration the frequency
8747 * can no longer be used and there is a need to evacuate the GO.
8748 * 2. It is possible that due to MCC considerations, it would be preferable
8749 * to move the GO to a channel that is currently used by some other
8750 * station interface.
8751 *
8752 * In case a frequency that became invalid is once again valid, cancel a
8753 * previously initiated GO frequency change.
8754 */
8755static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
8756 struct wpa_used_freq_data *freqs,
8757 unsigned int num)
8758{
8759 unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
8760 unsigned int timeout;
8761 int freq;
8762
5e1f4805
IP		 8763 wpas_p2p_go_update_common_freqs(wpa_s);
8764
1a471ff0
IP		 8765 freq = wpa_s->current_ssid->frequency;
8766 for (i = 0, invalid_freq = 0; i < num; i++) {
8767 if (freqs[i].freq == freq) {
8768 flags = freqs[i].flags;
8769
8770 /* The channel is invalid, must change it */
8771 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
8772 wpa_dbg(wpa_s, MSG_DEBUG,
8773 "P2P: Freq=%d MHz no longer valid for GO",
8774 freq);
8775 invalid_freq = 1;
8776 }
8777 } else if (freqs[i].flags == 0) {
8778 /* Freq is not used by any other station interface */
8779 continue;
8780 } else if (!p2p_supported_freq(wpa_s->global->p2p,
8781 freqs[i].freq)) {
8782 /* Freq is not valid for P2P use cases */
8783 continue;
8784 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8785 P2P_GO_FREQ_MOVE_SCM) {
8786 policy_move = 1;
8787 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8788 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
8789 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8790 policy_move = 1;
98b05081
AO		 8791 } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
8792 P2P_GO_FREQ_MOVE_SCM_ECSA) &&
8793 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8794 if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
8795 policy_move = 1;
8796 } else if ((wpa_s->drv_flags &
8797 WPA_DRIVER_FLAGS_AP_CSA) &&
8798 wpas_p2p_go_clients_support_ecsa(wpa_s)) {
8799 u8 chan;
8800
8801 /*
8802 * We do not support CSA between bands, so move
8803 * GO only within the same band.
8804 */
8805 if (wpa_s->ap_iface->current_mode->mode ==
8806 ieee80211_freq_to_chan(freqs[i].freq,
8807 &chan))
8808 policy_move = 1;
8809 }
1a471ff0
IP		 8810 }
8811 }
8812
8813 wpa_dbg(wpa_s, MSG_DEBUG,
8814 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
8815 invalid_freq, policy_move, flags);
8816
8817 /*
8818 * The channel is valid, or we are going to have a policy move, so
8819 * cancel timeout.
8820 */
8821 if (!invalid_freq || policy_move) {
8822 wpa_dbg(wpa_s, MSG_DEBUG,
8823 "P2P: Cancel a GO move from freq=%d MHz", freq);
8824 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
dae4c82c
IP		 8825
8826 if (wpas_p2p_in_progress(wpa_s)) {
8827 wpa_dbg(wpa_s, MSG_DEBUG,
8828 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
8829 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
8830 wpa_s, NULL);
8831 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8832 wpas_p2p_reconsider_moving_go,
8833 wpa_s, NULL);
8834 return;
8835 }
1a471ff0
IP		 8836 }
8837
8838 if (!invalid_freq && (!policy_move || flags != 0)) {
8839 wpa_dbg(wpa_s, MSG_DEBUG,
8840 "P2P: Not initiating a GO frequency change");
8841 return;
8842 }
8843
3bafb0d8
AO		 8844 /*
8845 * Do not consider moving GO if it is in the middle of a CSA. When the
8846 * CSA is finished this flow should be retriggered.
8847 */
8848 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8849 wpa_dbg(wpa_s, MSG_DEBUG,
8850 "P2P: Not initiating a GO frequency change - CSA is in progress");
8851 return;
8852 }
8853
1a471ff0
IP		 8854 if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
8855 timeout = P2P_GO_FREQ_CHANGE_TIME;
8856 else
8857 timeout = 0;
8858
8859 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
8860 freq, timeout);
8861 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
8862 eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
8863}
8864
8865
8866static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
8867 struct wpa_used_freq_data *freqs,
3a8f008a
IP		 8868 unsigned int num,
8869 enum wpas_p2p_channel_update_trig trig)
1a471ff0
IP		 8870{
8871 struct wpa_supplicant *ifs;
8872
dae4c82c
IP		 8873 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
8874 NULL);
8875
1a471ff0
IP		 8876 /*
8877 * Travers all the radio interfaces, and for each GO interface, check
8878 * if there is a need to move the GO from the frequency it is using,
8879 * or in case the frequency is valid again, cancel the evacuation flow.
8880 */
8881 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
8882 radio_list) {
8883 if (ifs->current_ssid == NULL ||
8884 ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
8885 continue;
8886
3a8f008a
IP		 8887 /*
8888 * The GO was just started or completed channel switch, no need
8889 * to move it.
8890 */
8891 if (wpa_s == ifs &&
8892 (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
8893 trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
8894 wpa_dbg(wpa_s, MSG_DEBUG,
8895 "P2P: GO move - schedule re-consideration");
8896 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8897 wpas_p2p_reconsider_moving_go,
8898 wpa_s, NULL);
8899 continue;
8900 }
8901
1a471ff0
IP		 8902 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
8903 }
8904}
8905
8906
e3bd6e9d
IP		 8907void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
8908{
e3bd6e9d
IP		 8909 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8910 return;
8911
3a8f008a
IP		 8912 wpas_p2p_update_channel_list(wpa_s,
8913 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
e3bd6e9d 8914}
bd10d938
JM		 8915
8916
8917void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
8918{
bd10d938
JM		 8919 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
8920 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
8921 "the management interface is being removed");
8922 wpas_p2p_deinit_global(wpa_s->global);
8923 }
8924}
8925
8926
8927void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
8928{
8929 if (wpa_s->ap_iface->bss)
8930 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
8931 wpas_p2p_group_deinit(wpa_s);
8932}
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