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P2P: Set p2p_go_wait_client in invitation_result() cb
[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52 * it is currently using, but is no longer valid for P2P use cases.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57 * Defines CSA parameters which are used when GO evacuates the no longer valid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);
ebd32943
IP		 127static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
128 int *force_freq, int *pref_freq, int go,
129 unsigned int *pref_freq_list,
130 unsigned int *num_pref_freq);
c48414af
JM		 131static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
132 const u8 *ssid, size_t ssid_len);
ef922c4a 133static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
108def93 134static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0 135 const u8 *dev_addr, enum p2p_wps_method wps_method,
23318bea
JM		 136 int auto_join, int freq,
137 const u8 *ssid, size_t ssid_len);
b22128ef 138static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
72044390 139static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
3071e181
JM		 140static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
141static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
77dfafd0
JM		 142static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
143 void *timeout_ctx);
8567866d 144static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
b0e669be
JM		 145static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
146 int group_added);
a6294141 147static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
b3253ebb 148static void wpas_stop_listen(void *ctx);
fb2ac53d 149static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
bd10d938 150static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
6d908514
KV		 151static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
152 enum wpa_driver_if_type type);
d95c5994
JM		 153static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
154 int already_deleted);
c2675c87
IP		 155static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
156 struct wpa_used_freq_data *freqs,
157 unsigned int num);
1a471ff0 158static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx);
e280110d 159static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq);
3a8f008a
IP		 160static void
161wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
162 struct wpa_used_freq_data *freqs, unsigned int num,
163 enum wpas_p2p_channel_update_trig trig);
dae4c82c 164static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx);
b22128ef
JM		 165
166
0d08efa4
IP		 167/*
168 * Get the number of concurrent channels that the HW can operate, but that are
169 * currently not in use by any of the wpa_supplicant interfaces.
170 */
171static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
172{
173 int *freqs;
217cf499 174 int num, unused;
0d08efa4
IP		 175
176 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
177 if (!freqs)
178 return -1;
179
180 num = get_shared_radio_freqs(wpa_s, freqs,
181 wpa_s->num_multichan_concurrent);
182 os_free(freqs);
183
217cf499
JM		 184 unused = wpa_s->num_multichan_concurrent - num;
185 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
186 return unused;
0d08efa4
IP		 187}
188
189
190/*
191 * Get the frequencies that are currently in use by one or more of the virtual
192 * interfaces, and that are also valid for P2P operation.
193 */
a0c90bb0
IP		 194static unsigned int
195wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
196 struct wpa_used_freq_data *p2p_freqs,
197 unsigned int len)
0d08efa4 198{
a0c90bb0 199 struct wpa_used_freq_data *freqs;
0d08efa4
IP		 200 unsigned int num, i, j;
201
a0c90bb0
IP		 202 freqs = os_calloc(wpa_s->num_multichan_concurrent,
203 sizeof(struct wpa_used_freq_data));
0d08efa4 204 if (!freqs)
a0c90bb0 205 return 0;
0d08efa4 206
a0c90bb0
IP		 207 num = get_shared_radio_freqs_data(wpa_s, freqs,
208 wpa_s->num_multichan_concurrent);
0d08efa4 209
a0c90bb0 210 os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
0d08efa4
IP		 211
212 for (i = 0, j = 0; i < num && j < len; i++) {
a0c90bb0 213 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
0d08efa4
IP		 214 p2p_freqs[j++] = freqs[i];
215 }
216
217 os_free(freqs);
218
a0c90bb0 219 dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
217cf499 220
0d08efa4
IP		 221 return j;
222}
223
224
6cb27aa8
JM		 225static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
226 int freq)
227{
228 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
229 return;
86b91c89
IP		 230
231 /* Use the wpa_s used to control the P2P Device operation */
232 wpa_s = wpa_s->global->p2p_init_wpa_s;
233
234 if (wpa_s->conf->p2p_ignore_shared_freq &&
5624ccfe
JM		 235 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
236 wpas_p2p_num_unused_channels(wpa_s) > 0) {
21e491f2
JM		 237 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
238 freq);
b277a2be 239 freq = 0;
21e491f2 240 }
6cb27aa8
JM		 241 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
242}
243
244
b22128ef
JM		 245static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
246 struct wpa_scan_results *scan_res)
247{
248 size_t i;
249
1b5d4714
JM		 250 if (wpa_s->p2p_scan_work) {
251 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
252 wpa_s->p2p_scan_work = NULL;
253 radio_work_done(work);
254 }
255
9526fd29 256 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 257 return;
258
259 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
260 (int) scan_res->num);
261
262 for (i = 0; i < scan_res->num; i++) {
263 struct wpa_scan_res *bss = scan_res->res[i];
acb69cec 264 struct os_reltime time_tmp_age, entry_ts;
aaeb9c98
JM		 265 const u8 *ies;
266 size_t ies_len;
267
c5f10e80
JM		 268 time_tmp_age.sec = bss->age / 1000;
269 time_tmp_age.usec = (bss->age % 1000) * 1000;
acb69cec 270 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
aaeb9c98
JM		 271
272 ies = (const u8 *) (bss + 1);
273 ies_len = bss->ie_len;
274 if (bss->beacon_ie_len > 0 &&
275 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
276 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
277 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
278 MACSTR, MAC2STR(bss->bssid));
279 ies = ies + ies_len;
280 ies_len = bss->beacon_ie_len;
281 }
282
283
b22128ef 284 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
c5f10e80 285 bss->freq, &entry_ts, bss->level,
aaeb9c98 286 ies, ies_len) > 0)
9bcf9541 287 break;
b22128ef
JM		 288 }
289
290 p2p_scan_res_handled(wpa_s->global->p2p);
291}
292
293
1b5d4714
JM		 294static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
295{
296 struct wpa_supplicant *wpa_s = work->wpa_s;
297 struct wpa_driver_scan_params *params = work->ctx;
298 int ret;
299
300 if (deinit) {
b3253ebb
AO		 301 if (!work->started) {
302 wpa_scan_free_params(params);
303 return;
304 }
305
306 wpa_s->p2p_scan_work = NULL;
1b5d4714
JM		 307 return;
308 }
309
310 ret = wpa_drv_scan(wpa_s, params);
311 wpa_scan_free_params(params);
312 work->ctx = NULL;
313 if (ret) {
314 radio_work_done(work);
b951a974 315 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
1b5d4714
JM		 316 return;
317 }
318
b951a974 319 p2p_notify_scan_trigger_status(wpa_s->global->p2p, ret);
1b5d4714
JM		 320 os_get_reltime(&wpa_s->scan_trigger_time);
321 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
322 wpa_s->own_scan_requested = 1;
323 wpa_s->p2p_scan_work = work;
324}
325
326
7475d299
JM		 327static int wpas_p2p_search_social_channel(struct wpa_supplicant *wpa_s,
328 int freq)
329{
330 if (wpa_s->global->p2p_24ghz_social_channels &&
331 (freq == 2412 || freq == 2437 || freq == 2462)) {
332 /*
333 * Search all social channels regardless of whether these have
334 * been disabled for P2P operating channel use to avoid missing
335 * peers.
336 */
337 return 1;
338 }
339 return p2p_supported_freq(wpa_s->global->p2p, freq);
340}
341
342
046ef4aa
JMB		 343static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
344 unsigned int num_req_dev_types,
360182ed 345 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
b22128ef
JM		 346{
347 struct wpa_supplicant *wpa_s = ctx;
1b5d4714 348 struct wpa_driver_scan_params *params = NULL;
b22128ef 349 struct wpabuf *wps_ie, *ies;
1595eb93
AM		 350 unsigned int num_channels = 0;
351 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
206e1f42 352 size_t ielen;
1595eb93 353 u8 *n, i;
b22128ef 354
9526fd29
JM		 355 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
356 return -1;
357
1b5d4714
JM		 358 if (wpa_s->p2p_scan_work) {
359 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
360 return -1;
99fcd404
JM		 361 }
362
1b5d4714
JM		 363 params = os_zalloc(sizeof(*params));
364 if (params == NULL)
365 return -1;
b22128ef
JM		 366
367 /* P2P Wildcard SSID */
1b5d4714
JM		 368 params->num_ssids = 1;
369 n = os_malloc(P2P_WILDCARD_SSID_LEN);
370 if (n == NULL)
371 goto fail;
372 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
373 params->ssids[0].ssid = n;
374 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
b22128ef
JM		 375
376 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 377 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
378 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
046ef4aa 379 num_req_dev_types, req_dev_types);
b22128ef 380 if (wps_ie == NULL)
1b5d4714 381 goto fail;
b22128ef 382
206e1f42
JM		 383 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
384 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
b22128ef
JM		 385 if (ies == NULL) {
386 wpabuf_free(wps_ie);
1b5d4714 387 goto fail;
b22128ef
JM		 388 }
389 wpabuf_put_buf(ies, wps_ie);
390 wpabuf_free(wps_ie);
391
6d92fa6e 392 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
b22128ef 393
1b5d4714
JM		 394 params->p2p_probe = 1;
395 n = os_malloc(wpabuf_len(ies));
396 if (n == NULL) {
397 wpabuf_free(ies);
398 goto fail;
399 }
400 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
401 params->extra_ies = n;
402 params->extra_ies_len = wpabuf_len(ies);
403 wpabuf_free(ies);
b22128ef
JM		 404
405 switch (type) {
406 case P2P_SCAN_SOCIAL:
1595eb93
AM		 407 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
408 sizeof(int));
1b5d4714
JM		 409 if (params->freqs == NULL)
410 goto fail;
1595eb93 411 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
7475d299
JM		 412 if (wpas_p2p_search_social_channel(
413 wpa_s, social_channels_freq[i]))
1595eb93
AM		 414 params->freqs[num_channels++] =
415 social_channels_freq[i];
416 }
417 params->freqs[num_channels++] = 0;
b22128ef
JM		 418 break;
419 case P2P_SCAN_FULL:
420 break;
eb78a8d5
DU		 421 case P2P_SCAN_SPECIFIC:
422 params->freqs = os_calloc(2, sizeof(int));
423 if (params->freqs == NULL)
424 goto fail;
425 params->freqs[0] = freq;
426 params->freqs[1] = 0;
427 break;
b22128ef 428 case P2P_SCAN_SOCIAL_PLUS_ONE:
1595eb93
AM		 429 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
430 sizeof(int));
1b5d4714
JM		 431 if (params->freqs == NULL)
432 goto fail;
1595eb93 433 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
7475d299
JM		 434 if (wpas_p2p_search_social_channel(
435 wpa_s, social_channels_freq[i]))
1595eb93
AM		 436 params->freqs[num_channels++] =
437 social_channels_freq[i];
438 }
439 if (p2p_supported_freq(wpa_s->global->p2p, freq))
440 params->freqs[num_channels++] = freq;
441 params->freqs[num_channels++] = 0;
b22128ef
JM		 442 break;
443 }
444
b3253ebb 445 radio_remove_works(wpa_s, "p2p-scan", 0);
1b5d4714
JM		 446 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
447 params) < 0)
448 goto fail;
449 return 0;
0c96fd6d 450
1b5d4714
JM		 451fail:
452 wpa_scan_free_params(params);
453 return -1;
b22128ef
JM		 454}
455
456
b22128ef
JM		 457static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
458{
459 switch (p2p_group_interface) {
460 case P2P_GROUP_INTERFACE_PENDING:
461 return WPA_IF_P2P_GROUP;
462 case P2P_GROUP_INTERFACE_GO:
463 return WPA_IF_P2P_GO;
464 case P2P_GROUP_INTERFACE_CLIENT:
465 return WPA_IF_P2P_CLIENT;
466 }
467
468 return WPA_IF_P2P_GROUP;
469}
470
471
6c0da49f
JM		 472static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
473 const u8 *ssid,
474 size_t ssid_len, int *go)
475{
476 struct wpa_ssid *s;
477
478 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
479 for (s = wpa_s->conf->ssid; s; s = s->next) {
480 if (s->disabled != 0 || !s->p2p_group ||
481 s->ssid_len != ssid_len ||
482 os_memcmp(ssid, s->ssid, ssid_len) != 0)
483 continue;
484 if (s->mode == WPAS_MODE_P2P_GO &&
485 s != wpa_s->current_ssid)
486 continue;
487 if (go)
488 *go = s->mode == WPAS_MODE_P2P_GO;
489 return wpa_s;
490 }
491 }
492
493 return NULL;
494}
495
496
f2b3acc9
JM		 497static void run_wpas_p2p_disconnect(void *eloop_ctx, void *timeout_ctx)
498{
499 struct wpa_supplicant *wpa_s = eloop_ctx;
500 wpa_printf(MSG_DEBUG,
501 "P2P: Complete previously requested removal of %s",
502 wpa_s->ifname);
503 wpas_p2p_disconnect(wpa_s);
504}
505
506
507static int wpas_p2p_disconnect_safely(struct wpa_supplicant *wpa_s,
508 struct wpa_supplicant *calling_wpa_s)
509{
3586d55a 510 if (calling_wpa_s == wpa_s && wpa_s &&
f2b3acc9
JM		 511 wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
512 /*
513 * The calling wpa_s instance is going to be removed. Do that
514 * from an eloop callback to keep the instance available until
515 * the caller has returned. This my be needed, e.g., to provide
516 * control interface responses on the per-interface socket.
517 */
518 if (eloop_register_timeout(0, 0, run_wpas_p2p_disconnect,
519 wpa_s, NULL) < 0)
520 return -1;
521 return 0;
522 }
523
524 return wpas_p2p_disconnect(wpa_s);
525}
526
527
5fefce27
KV		 528/* Determine total number of clients in active groups where we are the GO */
529static unsigned int p2p_group_go_member_count(struct wpa_supplicant *wpa_s)
530{
531 unsigned int count = 0;
532 struct wpa_ssid *s;
533
534 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
535 for (s = wpa_s->conf->ssid; s; s = s->next) {
536 wpa_printf(MSG_DEBUG,
537 "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
538 wpa_s, s, s->disabled, s->p2p_group,
539 s->mode);
540 if (!s->disabled && s->p2p_group &&
541 s->mode == WPAS_MODE_P2P_GO) {
542 count += p2p_get_group_num_members(
543 wpa_s->p2p_group);
544 }
545 }
546 }
547
548 return count;
549}
550
551
8d5e7329
IP		 552static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant *wpa_s)
553{
554 return !wpa_s->p2p_mgmt && wpa_s->current_ssid &&
555 !wpa_s->current_ssid->disabled &&
556 wpa_s->current_ssid->p2p_group &&
557 wpa_s->current_ssid->p2p_persistent_group;
558}
559
560
561static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant *wpa_s)
562{
563 return p2p_is_active_persistent_group(wpa_s) &&
564 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO;
565}
566
567
6d908514
KV		 568/* Find an interface for a P2P group where we are the GO */
569static struct wpa_supplicant *
570wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
571{
572 struct wpa_supplicant *save = NULL;
6d908514
KV		 573
574 if (!wpa_s)
575 return NULL;
576
577 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8d5e7329
IP		 578 if (!p2p_is_active_persistent_go(wpa_s))
579 continue;
6d908514 580
8d5e7329
IP		 581 /* Prefer a group with connected clients */
582 if (p2p_get_group_num_members(wpa_s->p2p_group))
583 return wpa_s;
584 save = wpa_s;
6d908514
KV		 585 }
586
587 /* No group with connected clients, so pick the one without (if any) */
588 return save;
589}
590
591
ab804bcb
IP		 592static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant *wpa_s)
593{
594 return p2p_is_active_persistent_group(wpa_s) &&
595 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
596}
597
598
599/* Find an interface for a P2P group where we are the P2P Client */
600static struct wpa_supplicant *
601wpas_p2p_get_cli_group(struct wpa_supplicant *wpa_s)
602{
603 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
604 if (p2p_is_active_persistent_cli(wpa_s))
605 return wpa_s;
606 }
607
608 return NULL;
609}
610
611
369678ad
KV		 612/* Find a persistent group where we are the GO */
613static struct wpa_ssid *
614wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
615{
616 struct wpa_ssid *s;
617
618 for (s = wpa_s->conf->ssid; s; s = s->next) {
619 if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
620 return s;
621 }
622
623 return NULL;
624}
625
626
ebd32943
IP		 627static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role,
628 unsigned int *force_freq,
629 unsigned int *pref_freq)
6d908514 630{
ab804bcb 631 struct wpa_supplicant *wpa_s = ctx;
6d908514
KV		 632 struct wpa_ssid *s;
633 u8 conncap = P2PS_SETUP_NONE;
634 unsigned int owned_members = 0;
ab804bcb 635 struct wpa_supplicant *go_wpa_s, *cli_wpa_s;
6d908514
KV		 636 struct wpa_ssid *persistent_go;
637 int p2p_no_group_iface;
ebd32943 638 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
6d908514
KV		 639
640 wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
641
ebd32943
IP		 642 if (force_freq)
643 *force_freq = 0;
644 if (pref_freq)
645 *pref_freq = 0;
646
647 size = P2P_MAX_PREF_CHANNELS;
648 if (force_freq && pref_freq &&
649 !wpas_p2p_setup_freqs(wpa_s, 0, (int *) force_freq,
650 (int *) pref_freq, 0, pref_freq_list, &size))
651 wpas_p2p_set_own_freq_preference(wpa_s,
652 *force_freq ? *force_freq :
653 *pref_freq);
654
6d908514
KV		 655 /*
656 * For non-concurrent capable devices:
657 * If persistent_go, then no new.
658 * If GO, then no client.
659 * If client, then no GO.
660 */
661 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
ab804bcb
IP		 662 if (go_wpa_s)
663 owned_members = p2p_get_group_num_members(go_wpa_s->p2p_group);
6d908514 664 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
a698d6c8 665 p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
ab804bcb 666 cli_wpa_s = wpas_p2p_get_cli_group(wpa_s);
6d908514 667
ab804bcb
IP		 668 wpa_printf(MSG_DEBUG,
669 "P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p",
670 go_wpa_s, owned_members, cli_wpa_s, persistent_go);
6d908514
KV		 671
672 /* If not concurrent, restrict our choices */
673 if (p2p_no_group_iface) {
674 wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
675
ab804bcb 676 if (cli_wpa_s)
6d908514
KV		 677 return P2PS_SETUP_NONE;
678
679 if (go_wpa_s) {
680 if (role == P2PS_SETUP_CLIENT ||
681 incoming == P2PS_SETUP_GROUP_OWNER ||
682 p2p_client_limit_reached(go_wpa_s->p2p_group))
683 return P2PS_SETUP_NONE;
684
685 return P2PS_SETUP_GROUP_OWNER;
686 }
687
688 if (persistent_go) {
689 if (role == P2PS_SETUP_NONE || role == P2PS_SETUP_NEW) {
690 if (!incoming)
691 return P2PS_SETUP_GROUP_OWNER |
692 P2PS_SETUP_CLIENT;
693 if (incoming == P2PS_SETUP_NEW) {
694 u8 r;
695
696 if (os_get_random(&r, sizeof(r)) < 0 ||
697 (r & 1))
698 return P2PS_SETUP_CLIENT;
699 return P2PS_SETUP_GROUP_OWNER;
700 }
701 }
702 }
703 }
704
705 /* If a required role has been specified, handle it here */
706 if (role && role != P2PS_SETUP_NEW) {
707 switch (incoming) {
f8a80e39
IP		 708 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
709 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
710 /*
711 * Peer has an active GO, so if the role allows it and
712 * we do not have any active roles, become client.
713 */
714 if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s &&
715 !cli_wpa_s)
716 return P2PS_SETUP_CLIENT;
717
718 /* fall through */
719
6d908514
KV		 720 case P2PS_SETUP_NONE:
721 case P2PS_SETUP_NEW:
6d908514
KV		 722 conncap = role;
723 goto grp_owner;
724
725 case P2PS_SETUP_GROUP_OWNER:
726 /*
727 * Must be a complimentary role - cannot be a client to
728 * more than one peer.
729 */
ab804bcb 730 if (incoming == role || cli_wpa_s)
6d908514
KV		 731 return P2PS_SETUP_NONE;
732
733 return P2PS_SETUP_CLIENT;
734
735 case P2PS_SETUP_CLIENT:
736 /* Must be a complimentary role */
737 if (incoming != role) {
738 conncap = P2PS_SETUP_GROUP_OWNER;
739 goto grp_owner;
740 }
741
742 default:
743 return P2PS_SETUP_NONE;
744 }
745 }
746
747 /*
748 * For now, we only will support ownership of one group, and being a
749 * client of one group. Therefore, if we have either an existing GO
750 * group, or an existing client group, we will not do a new GO
751 * negotiation, but rather try to re-use the existing groups.
752 */
753 switch (incoming) {
754 case P2PS_SETUP_NONE:
755 case P2PS_SETUP_NEW:
ab804bcb 756 if (cli_wpa_s)
6d908514
KV		 757 conncap = P2PS_SETUP_GROUP_OWNER;
758 else if (!owned_members)
759 conncap = P2PS_SETUP_NEW;
760 else if (incoming == P2PS_SETUP_NONE)
761 conncap = P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT;
762 else
763 conncap = P2PS_SETUP_CLIENT;
764 break;
765
766 case P2PS_SETUP_CLIENT:
767 conncap = P2PS_SETUP_GROUP_OWNER;
768 break;
769
770 case P2PS_SETUP_GROUP_OWNER:
ab804bcb 771 if (!cli_wpa_s)
6d908514
KV		 772 conncap = P2PS_SETUP_CLIENT;
773 break;
774
775 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
776 case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
f8a80e39
IP		 777 /*
778 * Peer has an active GO, so if the role allows it and
779 * we do not have any active roles, become client.
780 */
781 if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s && !cli_wpa_s)
782 return P2PS_SETUP_CLIENT;
783
ab804bcb 784 if (cli_wpa_s)
6d908514
KV		 785 conncap = P2PS_SETUP_GROUP_OWNER;
786 else {
787 u8 r;
788
789 if (os_get_random(&r, sizeof(r)) < 0 ||
790 (r & 1))
791 conncap = P2PS_SETUP_CLIENT;
792 else
793 conncap = P2PS_SETUP_GROUP_OWNER;
794 }
795 break;
796
797 default:
798 return P2PS_SETUP_NONE;
799 }
800
801grp_owner:
802 if ((conncap & P2PS_SETUP_GROUP_OWNER) ||
803 (!incoming && (conncap & P2PS_SETUP_NEW))) {
804 if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
805 conncap &= ~P2PS_SETUP_GROUP_OWNER;
6d908514
KV		 806
807 s = wpas_p2p_get_persistent_go(wpa_s);
ab804bcb 808 if (!s && !go_wpa_s && p2p_no_group_iface) {
6d908514
KV		 809 p2p_set_intended_addr(wpa_s->global->p2p,
810 wpa_s->own_addr);
ab804bcb 811 } else if (!s && !go_wpa_s) {
6d908514
KV		 812 if (wpas_p2p_add_group_interface(wpa_s,
813 WPA_IF_P2P_GO) < 0) {
814 wpa_printf(MSG_ERROR,
815 "P2P: Failed to allocate a new interface for the group");
816 return P2PS_SETUP_NONE;
817 }
93eca615 818 wpa_s->global->pending_group_iface_for_p2ps = 1;
6d908514
KV		 819 p2p_set_intended_addr(wpa_s->global->p2p,
820 wpa_s->pending_interface_addr);
821 }
822 }
823
824 return conncap;
825}
826
827
8dba4aef
JM		 828static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
829 enum p2p_group_removal_reason removal_reason)
b22128ef
JM		 830{
831 struct wpa_ssid *ssid;
832 char *gtype;
3071e181
JM		 833 const char *reason;
834
b22128ef
JM		 835 ssid = wpa_s->current_ssid;
836 if (ssid == NULL) {
837 /*
838 * The current SSID was not known, but there may still be a
0c802384
JM		 839 * pending P2P group interface waiting for provisioning or a
840 * P2P group that is trying to reconnect.
b22128ef
JM		 841 */
842 ssid = wpa_s->conf->ssid;
843 while (ssid) {
6d22a377 844 if (ssid->p2p_group && ssid->disabled != 2)
b22128ef
JM		 845 break;
846 ssid = ssid->next;
847 }
6f1ca696
JM		 848 if (ssid == NULL &&
849 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
850 {
30ee7692
MN		 851 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
852 "not found");
853 return -1;
854 }
b22128ef
JM		 855 }
856 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
857 gtype = "GO";
858 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
859 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
860 wpa_s->reassociate = 0;
861 wpa_s->disconnected = 1;
b22128ef
JM		 862 gtype = "client";
863 } else
864 gtype = "GO";
c45dabb8
EA		 865
866 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
867 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
868
debb2dac 869 if (os_strcmp(gtype, "client") == 0) {
c45dabb8 870 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
debb2dac
JM		 871 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
872 wpa_s, NULL)) {
873 wpa_printf(MSG_DEBUG,
874 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
875 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
876 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
877 wpa_s, NULL);
878 }
879 }
c45dabb8 880
72044390
JM		 881 if (wpa_s->cross_connect_in_use) {
882 wpa_s->cross_connect_in_use = 0;
92c4465b
JM		 883 wpa_msg_global(wpa_s->parent, MSG_INFO,
884 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
885 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390 886 }
8dba4aef 887 switch (removal_reason) {
3071e181
JM		 888 case P2P_GROUP_REMOVAL_REQUESTED:
889 reason = " reason=REQUESTED";
890 break;
8dba4aef
JM		 891 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
892 reason = " reason=FORMATION_FAILED";
893 break;
3071e181
JM		 894 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
895 reason = " reason=IDLE";
896 break;
c973f386
JM		 897 case P2P_GROUP_REMOVAL_UNAVAILABLE:
898 reason = " reason=UNAVAILABLE";
899 break;
3fc14102
JM		 900 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
901 reason = " reason=GO_ENDING_SESSION";
902 break;
5bf9a6c8
JM		 903 case P2P_GROUP_REMOVAL_PSK_FAILURE:
904 reason = " reason=PSK_FAILURE";
905 break;
8567866d
JJ		 906 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
907 reason = " reason=FREQ_CONFLICT";
908 break;
3071e181
JM		 909 default:
910 reason = "";
911 break;
912 }
8dba4aef 913 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
92c4465b
JM		 914 wpa_msg_global(wpa_s->parent, MSG_INFO,
915 P2P_EVENT_GROUP_REMOVED "%s %s%s",
916 wpa_s->ifname, gtype, reason);
aa9bb764 917 }
408af93e 918
8567866d
JJ		 919 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
920 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
dddc7045
JM		 921 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
922 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
77dfafd0 923 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
c9c77083 924 wpa_s->parent, NULL) > 0) {
77dfafd0
JM		 925 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
926 "timeout");
c9c77083 927 wpa_s->p2p_in_provisioning = 0;
be11a594 928 wpas_p2p_group_formation_failed(wpa_s, 1);
c9c77083 929 }
a7a30b90 930
41d5ce9e 931 wpa_s->p2p_in_invitation = 0;
1a471ff0 932 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
dae4c82c 933 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, wpa_s, NULL);
41d5ce9e 934
adeb4f59
JM		 935 /*
936 * Make sure wait for the first client does not remain active after the
937 * group has been removed.
938 */
939 wpa_s->global->p2p_go_wait_client.sec = 0;
940
b22128ef
JM		 941 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
942 struct wpa_global *global;
943 char *ifname;
944 enum wpa_driver_if_type type;
945 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
946 wpa_s->ifname);
947 global = wpa_s->global;
948 ifname = os_strdup(wpa_s->ifname);
949 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
f2b3acc9 950 eloop_cancel_timeout(run_wpas_p2p_disconnect, wpa_s, NULL);
df509539 951 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
b22128ef
JM		 952 wpa_s = global->ifaces;
953 if (wpa_s && ifname)
954 wpa_drv_if_remove(wpa_s, type, ifname);
955 os_free(ifname);
0aadd568 956 return 1;
b22128ef
JM		 957 }
958
acdd0fc8
DG		 959 if (!wpa_s->p2p_go_group_formation_completed) {
960 wpa_s->global->p2p_group_formation = NULL;
961 wpa_s->p2p_in_provisioning = 0;
962 }
963
c092d83e
JM		 964 wpa_s->show_group_started = 0;
965 os_free(wpa_s->go_params);
966 wpa_s->go_params = NULL;
967
20beb96f
IP		 968 os_free(wpa_s->p2p_group_common_freqs);
969 wpa_s->p2p_group_common_freqs = NULL;
970 wpa_s->p2p_group_common_freqs_num = 0;
971
c64e3a08
JM		 972 wpa_s->waiting_presence_resp = 0;
973
b22128ef
JM		 974 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
975 if (ssid && (ssid->p2p_group ||
976 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
977 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
978 int id = ssid->id;
20a0b03d
JM		 979 if (ssid == wpa_s->current_ssid) {
980 wpa_sm_set_config(wpa_s->wpa, NULL);
981 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
b22128ef 982 wpa_s->current_ssid = NULL;
20a0b03d 983 }
c2762e41
JS		 984 /*
985 * Networks objects created during any P2P activities are not
986 * exposed out as they might/will confuse certain non-P2P aware
987 * applications since these network objects won't behave like
988 * regular ones.
989 *
990 * Likewise, we don't send out network removed signals for such
991 * network objects.
992 */
b22128ef
JM		 993 wpa_config_remove_network(wpa_s->conf, id);
994 wpa_supplicant_clear_status(wpa_s);
433cd2ce 995 wpa_supplicant_cancel_sched_scan(wpa_s);
b22128ef
JM		 996 } else {
997 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
998 "found");
999 }
3c29244e
EP		 1000 if (wpa_s->ap_iface)
1001 wpa_supplicant_ap_deinit(wpa_s);
1002 else
1003 wpa_drv_deinit_p2p_cli(wpa_s);
30ee7692 1004
9f59fe8d
JM		 1005 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
1006
30ee7692 1007 return 0;
b22128ef
JM		 1008}
1009
1010
1011static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
1012 u8 *go_dev_addr,
1013 const u8 *ssid, size_t ssid_len)
1014{
1015 struct wpa_bss *bss;
1016 const u8 *bssid;
1017 struct wpabuf *p2p;
1018 u8 group_capab;
1019 const u8 *addr;
1020
1021 if (wpa_s->go_params)
1022 bssid = wpa_s->go_params->peer_interface_addr;
1023 else
1024 bssid = wpa_s->bssid;
1025
1026 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
23318bea
JM		 1027 if (bss == NULL && wpa_s->go_params &&
1028 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
1029 bss = wpa_bss_get_p2p_dev_addr(
1030 wpa_s, wpa_s->go_params->peer_device_addr);
b22128ef
JM		 1031 if (bss == NULL) {
1032 u8 iface_addr[ETH_ALEN];
1033 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
1034 iface_addr) == 0)
1035 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
1036 }
1037 if (bss == NULL) {
1038 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1039 "group is persistent - BSS " MACSTR " not found",
1040 MAC2STR(bssid));
1041 return 0;
1042 }
1043
1044 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5df7414b
JM		 1045 if (p2p == NULL)
1046 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
1047 P2P_IE_VENDOR_TYPE);
b22128ef
JM		 1048 if (p2p == NULL) {
1049 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
1050 "group is persistent - BSS " MACSTR
1051 " did not include P2P IE", MAC2STR(bssid));
1052 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
1053 (u8 *) (bss + 1), bss->ie_len);
1054 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
1055 ((u8 *) bss + 1) + bss->ie_len,
1056 bss->beacon_ie_len);
1057 return 0;
1058 }
1059
1060 group_capab = p2p_get_group_capab(p2p);
1061 addr = p2p_get_go_dev_addr(p2p);
1062 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
1063 "group_capab=0x%x", group_capab);
1064 if (addr) {
1065 os_memcpy(go_dev_addr, addr, ETH_ALEN);
1066 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
1067 MAC2STR(addr));
1068 } else
1069 os_memset(go_dev_addr, 0, ETH_ALEN);
1070 wpabuf_free(p2p);
1071
1072 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
1073 "go_dev_addr=" MACSTR,
1074 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
1075
1076 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
1077}
1078
1079
4b6baa2f
JMB		 1080static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
1081 struct wpa_ssid *ssid,
1082 const u8 *go_dev_addr)
b22128ef
JM		 1083{
1084 struct wpa_ssid *s;
1085 int changed = 0;
1086
1087 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
1088 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
1089 for (s = wpa_s->conf->ssid; s; s = s->next) {
1090 if (s->disabled == 2 &&
1091 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
1092 s->ssid_len == ssid->ssid_len &&
1093 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
1094 break;
1095 }
1096
1097 if (s) {
1098 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
1099 "entry");
1100 if (ssid->passphrase && !s->passphrase)
1101 changed = 1;
1102 else if (ssid->passphrase && s->passphrase &&
1103 os_strcmp(ssid->passphrase, s->passphrase) != 0)
1104 changed = 1;
1105 } else {
1106 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
1107 "entry");
1108 changed = 1;
1109 s = wpa_config_add_network(wpa_s->conf);
1110 if (s == NULL)
4b6baa2f 1111 return -1;
c2762e41
JS		 1112
1113 /*
1114 * Instead of network_added we emit persistent_group_added
1115 * notification. Also to keep the defense checks in
1116 * persistent_group obj registration method, we set the
1117 * relevant flags in s to designate it as a persistent group.
1118 */
1119 s->p2p_group = 1;
1120 s->p2p_persistent_group = 1;
1121 wpas_notify_persistent_group_added(wpa_s, s);
b22128ef
JM		 1122 wpa_config_set_network_defaults(s);
1123 }
1124
1125 s->p2p_group = 1;
1126 s->p2p_persistent_group = 1;
1127 s->disabled = 2;
1128 s->bssid_set = 1;
1129 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
1130 s->mode = ssid->mode;
1131 s->auth_alg = WPA_AUTH_ALG_OPEN;
1132 s->key_mgmt = WPA_KEY_MGMT_PSK;
1133 s->proto = WPA_PROTO_RSN;
1134 s->pairwise_cipher = WPA_CIPHER_CCMP;
d1c8ac88 1135 s->export_keys = 1;
b22128ef
JM		 1136 if (ssid->passphrase) {
1137 os_free(s->passphrase);
1138 s->passphrase = os_strdup(ssid->passphrase);
1139 }
1140 if (ssid->psk_set) {
1141 s->psk_set = 1;
1142 os_memcpy(s->psk, ssid->psk, 32);
1143 }
1144 if (s->passphrase && !s->psk_set)
1145 wpa_config_update_psk(s);
1146 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
1147 os_free(s->ssid);
1148 s->ssid = os_malloc(ssid->ssid_len);
1149 }
1150 if (s->ssid) {
1151 s->ssid_len = ssid->ssid_len;
1152 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
1153 }
01a57fe4
JM		 1154 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
1155 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
1156 wpa_s->global->add_psk = NULL;
1157 changed = 1;
1158 }
b22128ef 1159
b22128ef
JM		 1160 if (changed && wpa_s->conf->update_config &&
1161 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
1162 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1163 }
4b6baa2f
JMB		 1164
1165 return s->id;
b22128ef
JM		 1166}
1167
1168
fbdcfd57
JM		 1169static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
1170 const u8 *addr)
1171{
1172 struct wpa_ssid *ssid, *s;
1173 u8 *n;
1174 size_t i;
22316795 1175 int found = 0;
1e0a0294 1176 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
fbdcfd57
JM		 1177
1178 ssid = wpa_s->current_ssid;
1179 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
1180 !ssid->p2p_persistent_group)
1181 return;
1182
1e0a0294 1183 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
fbdcfd57
JM		 1184 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
1185 continue;
1186
1187 if (s->ssid_len == ssid->ssid_len &&
1188 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
1189 break;
1190 }
1191
1192 if (s == NULL)
1193 return;
1194
1195 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
79cd993a 1196 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN, addr,
22316795
JM		 1197 ETH_ALEN) != 0)
1198 continue;
1199
1200 if (i == s->num_p2p_clients - 1)
1201 return; /* already the most recent entry */
1202
1203 /* move the entry to mark it most recent */
79cd993a
ST		 1204 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
1205 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
1206 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
22316795 1207 os_memcpy(s->p2p_client_list +
79cd993a
ST		 1208 (s->num_p2p_clients - 1) * 2 * ETH_ALEN, addr,
1209 ETH_ALEN);
1210 os_memset(s->p2p_client_list +
1211 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1212 0xff, ETH_ALEN);
22316795
JM		 1213 found = 1;
1214 break;
fbdcfd57
JM		 1215 }
1216
b4a5dfa9 1217 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
22316795 1218 n = os_realloc_array(s->p2p_client_list,
79cd993a 1219 s->num_p2p_clients + 1, 2 * ETH_ALEN);
22316795
JM		 1220 if (n == NULL)
1221 return;
79cd993a
ST		 1222 os_memcpy(n + s->num_p2p_clients * 2 * ETH_ALEN, addr,
1223 ETH_ALEN);
1224 os_memset(n + s->num_p2p_clients * 2 * ETH_ALEN + ETH_ALEN,
1225 0xff, ETH_ALEN);
22316795
JM		 1226 s->p2p_client_list = n;
1227 s->num_p2p_clients++;
8931a36c 1228 } else if (!found && s->p2p_client_list) {
b4a5dfa9
JM		 1229 /* Not enough room for an additional entry - drop the oldest
1230 * entry */
1231 os_memmove(s->p2p_client_list,
79cd993a
ST		 1232 s->p2p_client_list + 2 * ETH_ALEN,
1233 (s->num_p2p_clients - 1) * 2 * ETH_ALEN);
b4a5dfa9 1234 os_memcpy(s->p2p_client_list +
79cd993a 1235 (s->num_p2p_clients - 1) * 2 * ETH_ALEN,
b4a5dfa9 1236 addr, ETH_ALEN);
79cd993a
ST		 1237 os_memset(s->p2p_client_list +
1238 (s->num_p2p_clients - 1) * 2 * ETH_ALEN + ETH_ALEN,
1239 0xff, ETH_ALEN);
22316795 1240 }
fbdcfd57 1241
1e0a0294
IP		 1242 if (p2p_wpa_s->conf->update_config &&
1243 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
fbdcfd57 1244 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
fbdcfd57
JM		 1245}
1246
1247
f8723e1e
JM		 1248static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
1249 int go, struct wpa_ssid *ssid, int freq,
1250 const u8 *psk, const char *passphrase,
1251 const u8 *go_dev_addr, int persistent,
1252 const char *extra)
1253{
1254 const char *ssid_txt;
1255 char psk_txt[65];
1256
1257 if (psk)
1258 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
1259 else
1260 psk_txt[0] = '\0';
1261
1262 if (ssid)
1263 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
1264 else
1265 ssid_txt = "";
1266
1267 if (passphrase && passphrase[0] == '\0')
1268 passphrase = NULL;
1269
52f4abfd
JM		 1270 /*
1271 * Include PSK/passphrase only in the control interface message and
1272 * leave it out from the debug log entry.
1273 */
1274 wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
1275 P2P_EVENT_GROUP_STARTED
1276 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
1277 MACSTR "%s%s",
1278 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1279 psk ? " psk=" : "", psk_txt,
1280 passphrase ? " passphrase=\"" : "",
1281 passphrase ? passphrase : "",
1282 passphrase ? "\"" : "",
1283 MAC2STR(go_dev_addr),
1284 persistent ? " [PERSISTENT]" : "", extra);
1285 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
1286 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
1287 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
1288 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
1289 extra);
f8723e1e
JM		 1290}
1291
1292
b22128ef 1293static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
d95c5994 1294 int success, int already_deleted)
b22128ef
JM		 1295{
1296 struct wpa_ssid *ssid;
b22128ef
JM		 1297 int client;
1298 int persistent;
1299 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 1300 int network_id = -1;
b22128ef
JM		 1301
1302 /*
1303 * This callback is likely called for the main interface. Update wpa_s
1304 * to use the group interface if a new interface was created for the
1305 * group.
1306 */
1307 if (wpa_s->global->p2p_group_formation)
1308 wpa_s = wpa_s->global->p2p_group_formation;
41f85323
JM		 1309 if (wpa_s->p2p_go_group_formation_completed) {
1310 wpa_s->global->p2p_group_formation = NULL;
1311 wpa_s->p2p_in_provisioning = 0;
1312 }
f05cee97 1313 wpa_s->p2p_in_invitation = 0;
61fc9048 1314 wpa_s->group_formation_reported = 1;
b22128ef
JM		 1315
1316 if (!success) {
92c4465b
JM		 1317 wpa_msg_global(wpa_s->parent, MSG_INFO,
1318 P2P_EVENT_GROUP_FORMATION_FAILURE);
2a95fac9 1319 wpas_notify_p2p_group_formation_failure(wpa_s, "");
d95c5994
JM		 1320 if (already_deleted)
1321 return;
8dba4aef
JM		 1322 wpas_p2p_group_delete(wpa_s,
1323 P2P_GROUP_REMOVAL_FORMATION_FAILED);
b22128ef
JM		 1324 return;
1325 }
1326
92c4465b
JM		 1327 wpa_msg_global(wpa_s->parent, MSG_INFO,
1328 P2P_EVENT_GROUP_FORMATION_SUCCESS);
b22128ef
JM		 1329
1330 ssid = wpa_s->current_ssid;
1331 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
1332 ssid->mode = WPAS_MODE_P2P_GO;
1333 p2p_group_notif_formation_done(wpa_s->p2p_group);
1334 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
1335 }
1336
1337 persistent = 0;
1338 if (ssid) {
b22128ef
JM		 1339 client = ssid->mode == WPAS_MODE_INFRA;
1340 if (ssid->mode == WPAS_MODE_P2P_GO) {
1341 persistent = ssid->p2p_persistent_group;
d7e70476 1342 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
b22128ef
JM		 1343 ETH_ALEN);
1344 } else
1345 persistent = wpas_p2p_persistent_group(wpa_s,
1346 go_dev_addr,
1347 ssid->ssid,
1348 ssid->ssid_len);
1349 } else {
b22128ef
JM		 1350 client = wpa_s->p2p_group_interface ==
1351 P2P_GROUP_INTERFACE_CLIENT;
62c0d27e 1352 os_memset(go_dev_addr, 0, ETH_ALEN);
b22128ef
JM		 1353 }
1354
1355 wpa_s->show_group_started = 0;
1356 if (client) {
1357 /*
1358 * Indicate event only after successfully completed 4-way
1359 * handshake, i.e., when the interface is ready for data
1360 * packets.
1361 */
1362 wpa_s->show_group_started = 1;
b22128ef 1363 } else {
f8723e1e
JM		 1364 wpas_p2p_group_started(wpa_s, 1, ssid,
1365 ssid ? ssid->frequency : 0,
1366 ssid && ssid->passphrase == NULL &&
1367 ssid->psk_set ? ssid->psk : NULL,
1368 ssid ? ssid->passphrase : NULL,
1369 go_dev_addr, persistent, "");
72044390 1370 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 1371 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 1372 }
1373
1374 if (persistent)
4b6baa2f
JMB		 1375 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
1376 ssid, go_dev_addr);
01a57fe4
JM		 1377 else {
1378 os_free(wpa_s->global->add_psk);
1379 wpa_s->global->add_psk = NULL;
1380 }
21fe9e75 1381 if (network_id < 0 && ssid)
4b6baa2f 1382 network_id = ssid->id;
c1c0b35f 1383 if (!client) {
4b6baa2f 1384 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
151ab808 1385 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
c1c0b35f 1386 }
b22128ef
JM		 1387}
1388
1389
e05e1308
JM		 1390struct send_action_work {
1391 unsigned int freq;
1392 u8 dst[ETH_ALEN];
1393 u8 src[ETH_ALEN];
1394 u8 bssid[ETH_ALEN];
1395 size_t len;
1396 unsigned int wait_time;
1397 u8 buf[0];
1398};
1399
1400
e699a7a9
JM		 1401static void wpas_p2p_free_send_action_work(struct wpa_supplicant *wpa_s)
1402{
1403 struct send_action_work *awork = wpa_s->p2p_send_action_work->ctx;
1404
1405 wpa_printf(MSG_DEBUG,
1406 "P2P: Free Action frame radio work @%p (freq=%u dst="
1407 MACSTR " src=" MACSTR " bssid=" MACSTR " wait_time=%u)",
1408 wpa_s->p2p_send_action_work, awork->freq,
1409 MAC2STR(awork->dst), MAC2STR(awork->src),
1410 MAC2STR(awork->bssid), awork->wait_time);
1411 wpa_hexdump(MSG_DEBUG, "P2P: Freeing pending Action frame",
1412 awork->buf, awork->len);
1413 os_free(awork);
1414 wpa_s->p2p_send_action_work->ctx = NULL;
1415 radio_work_done(wpa_s->p2p_send_action_work);
1416 wpa_s->p2p_send_action_work = NULL;
1417}
1418
1419
e05e1308
JM		 1420static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
1421 void *timeout_ctx)
1422{
1423 struct wpa_supplicant *wpa_s = eloop_ctx;
1424
1425 if (!wpa_s->p2p_send_action_work)
1426 return;
1427
1428 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
e699a7a9 1429 wpas_p2p_free_send_action_work(wpa_s);
e05e1308
JM		 1430}
1431
1432
2fa980f0 1433static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
534525ff 1434{
e05e1308
JM		 1435 if (wpa_s->p2p_send_action_work) {
1436 struct send_action_work *awork;
e699a7a9 1437
e05e1308 1438 awork = wpa_s->p2p_send_action_work->ctx;
e699a7a9
JM		 1439 wpa_printf(MSG_DEBUG,
1440 "P2P: Clear Action TX work @%p (wait_time=%u)",
1441 wpa_s->p2p_send_action_work, awork->wait_time);
e05e1308 1442 if (awork->wait_time == 0) {
e699a7a9 1443 wpas_p2p_free_send_action_work(wpa_s);
e05e1308
JM		 1444 } else {
1445 /*
1446 * In theory, this should not be needed, but number of
1447 * places in the P2P code is still using non-zero wait
1448 * time for the last Action frame in the sequence and
1449 * some of these do not call send_action_done().
1450 */
1451 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1452 wpa_s, NULL);
1453 eloop_register_timeout(
1454 0, awork->wait_time * 1000,
1455 wpas_p2p_send_action_work_timeout,
1456 wpa_s, NULL);
1457 }
1458 }
2fa980f0
JJ		 1459}
1460
1461
1462static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1463 unsigned int freq,
1464 const u8 *dst, const u8 *src,
1465 const u8 *bssid,
1466 const u8 *data, size_t data_len,
1467 enum offchannel_send_action_result
1468 result)
1469{
1470 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1471
1472 wpas_p2p_action_tx_clear(wpa_s);
e05e1308 1473
9526fd29 1474 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef
JM		 1475 return;
1476
24f6497c
JM		 1477 switch (result) {
1478 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1479 res = P2P_SEND_ACTION_SUCCESS;
1480 break;
1481 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1482 res = P2P_SEND_ACTION_NO_ACK;
1483 break;
1484 case OFFCHANNEL_SEND_ACTION_FAILED:
1485 res = P2P_SEND_ACTION_FAILED;
1486 break;
b22128ef
JM		 1487 }
1488
24f6497c 1489 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
b22128ef 1490
f63b8542
JM		 1491 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1492 wpa_s->pending_pd_before_join &&
24f6497c 1493 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
175171ac
JM		 1494 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1495 wpa_s->p2p_fallback_to_go_neg) {
b22128ef 1496 wpa_s->pending_pd_before_join = 0;
175171ac
JM		 1497 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1498 "during p2p_connect-auto");
6b005121
JM		 1499 wpa_msg_global(wpa_s->parent, MSG_INFO,
1500 P2P_EVENT_FALLBACK_TO_GO_NEG
1501 "reason=no-ACK-to-PD-Req");
175171ac
JM		 1502 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1503 return;
b22128ef
JM		 1504 }
1505}
1506
1507
e05e1308
JM		 1508static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1509{
1510 struct wpa_supplicant *wpa_s = work->wpa_s;
1511 struct send_action_work *awork = work->ctx;
1512
1513 if (deinit) {
b3253ebb
AO		 1514 if (work->started) {
1515 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1516 wpa_s, NULL);
1517 wpa_s->p2p_send_action_work = NULL;
1518 offchannel_send_action_done(wpa_s);
1519 }
e05e1308
JM		 1520 os_free(awork);
1521 return;
1522 }
1523
1524 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1525 awork->bssid, awork->buf, awork->len,
1526 awork->wait_time,
1527 wpas_p2p_send_action_tx_status, 1) < 0) {
1528 os_free(awork);
1529 radio_work_done(work);
1530 return;
1531 }
1532 wpa_s->p2p_send_action_work = work;
1533}
1534
1535
1536static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1537 unsigned int freq, const u8 *dst,
1538 const u8 *src, const u8 *bssid, const u8 *buf,
1539 size_t len, unsigned int wait_time)
1540{
1541 struct send_action_work *awork;
1542
1543 if (wpa_s->p2p_send_action_work) {
1544 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1545 return -1;
1546 }
1547
1548 awork = os_zalloc(sizeof(*awork) + len);
1549 if (awork == NULL)
1550 return -1;
1551
1552 awork->freq = freq;
1553 os_memcpy(awork->dst, dst, ETH_ALEN);
1554 os_memcpy(awork->src, src, ETH_ALEN);
1555 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1556 awork->len = len;
1557 awork->wait_time = wait_time;
1558 os_memcpy(awork->buf, buf, len);
1559
1560 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1561 wpas_send_action_cb, awork) < 0) {
1562 os_free(awork);
1563 return -1;
1564 }
1565
1566 return 0;
1567}
1568
1569
b22128ef
JM		 1570static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1571 const u8 *src, const u8 *bssid, const u8 *buf,
1572 size_t len, unsigned int wait_time)
1573{
1574 struct wpa_supplicant *wpa_s = ctx;
e05e1308
JM		 1575 int listen_freq = -1, send_freq = -1;
1576
1577 if (wpa_s->p2p_listen_work)
1578 listen_freq = wpa_s->p2p_listen_work->freq;
1579 if (wpa_s->p2p_send_action_work)
1580 send_freq = wpa_s->p2p_send_action_work->freq;
1581 if (listen_freq != (int) freq && send_freq != (int) freq) {
1582 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1583 listen_freq, send_freq);
1584 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1585 len, wait_time);
1586 }
1587
1588 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
24f6497c
JM		 1589 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1590 wait_time,
b106173a 1591 wpas_p2p_send_action_tx_status, 1);
b22128ef
JM		 1592}
1593
1594
1595static void wpas_send_action_done(void *ctx)
1596{
1597 struct wpa_supplicant *wpa_s = ctx;
e05e1308
JM		 1598
1599 if (wpa_s->p2p_send_action_work) {
1600 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1601 wpa_s, NULL);
1602 os_free(wpa_s->p2p_send_action_work->ctx);
1603 radio_work_done(wpa_s->p2p_send_action_work);
1604 wpa_s->p2p_send_action_work = NULL;
1605 }
1606
24f6497c 1607 offchannel_send_action_done(wpa_s);
b22128ef
JM		 1608}
1609
1610
1611static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1612 struct p2p_go_neg_results *params)
1613{
1614 if (wpa_s->go_params == NULL) {
1615 wpa_s->go_params = os_malloc(sizeof(*params));
1616 if (wpa_s->go_params == NULL)
1617 return -1;
1618 }
1619 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1620 return 0;
1621}
1622
1623
1624static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1625 struct p2p_go_neg_results *res)
1626{
61fc9048 1627 wpa_s->group_formation_reported = 0;
23318bea 1628 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
8e9f53c3 1629 " dev_addr " MACSTR " wps_method %d",
23318bea 1630 MAC2STR(res->peer_interface_addr),
8e9f53c3 1631 MAC2STR(res->peer_device_addr), res->wps_method);
e9a7ae41
JM		 1632 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1633 res->ssid, res->ssid_len);
b22128ef
JM		 1634 wpa_supplicant_ap_deinit(wpa_s);
1635 wpas_copy_go_neg_results(wpa_s, res);
db6ae69e 1636 if (res->wps_method == WPS_PBC) {
3b29972c 1637 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
db6ae69e
JM		 1638#ifdef CONFIG_WPS_NFC
1639 } else if (res->wps_method == WPS_NFC) {
23318bea
JM		 1640 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1641 res->peer_interface_addr,
db6ae69e
JM		 1642 wpa_s->parent->p2p_oob_dev_pw,
1643 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1644 wpa_s->parent->p2p_oob_dev_pw_id ==
1645 DEV_PW_NFC_CONNECTION_HANDOVER ?
1646 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1647 NULL,
91a65018 1648 NULL, 0, 0);
db6ae69e
JM		 1649#endif /* CONFIG_WPS_NFC */
1650 } else {
3c5126a4 1651 u16 dev_pw_id = DEV_PW_DEFAULT;
4f88fc04
BG		 1652 if (wpa_s->p2p_wps_method == WPS_P2PS)
1653 dev_pw_id = DEV_PW_P2PS_DEFAULT;
3c5126a4
JM		 1654 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1655 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
b22128ef 1656 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
3c5126a4
JM		 1657 wpa_s->p2p_pin, 1, dev_pw_id);
1658 }
b22128ef
JM		 1659}
1660
1661
01a57fe4
JM		 1662static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1663 struct wpa_ssid *ssid)
1664{
1665 struct wpa_ssid *persistent;
1666 struct psk_list_entry *psk;
1667 struct hostapd_data *hapd;
1668
1669 if (!wpa_s->ap_iface)
1670 return;
1671
1672 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1673 ssid->ssid_len);
1674 if (persistent == NULL)
1675 return;
1676
1677 hapd = wpa_s->ap_iface->bss[0];
1678
1679 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1680 list) {
1681 struct hostapd_wpa_psk *hpsk;
1682
1683 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1684 MACSTR " psk=%d",
1685 MAC2STR(psk->addr), psk->p2p);
1686 hpsk = os_zalloc(sizeof(*hpsk));
1687 if (hpsk == NULL)
1688 break;
1689 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1690 if (psk->p2p)
1691 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1692 else
1693 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1694 hpsk->next = hapd->conf->ssid.wpa_psk;
1695 hapd->conf->ssid.wpa_psk = hpsk;
1696 }
1697}
1698
1699
20beb96f
IP		 1700static void p2p_go_dump_common_freqs(struct wpa_supplicant *wpa_s)
1701{
1702 unsigned int i;
1703
1704 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Common group frequencies (len=%u):",
1705 wpa_s->p2p_group_common_freqs_num);
1706
1707 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++)
1708 wpa_dbg(wpa_s, MSG_DEBUG, "freq[%u]: %d",
1709 i, wpa_s->p2p_group_common_freqs[i]);
1710}
1711
1712
1713static void p2p_go_save_group_common_freqs(struct wpa_supplicant *wpa_s,
1714 struct p2p_go_neg_results *params)
1715{
1716 unsigned int i, len = int_array_len(wpa_s->go_params->freq_list);
1717
1718 wpa_s->p2p_group_common_freqs_num = 0;
1719 os_free(wpa_s->p2p_group_common_freqs);
1720 wpa_s->p2p_group_common_freqs = os_calloc(len, sizeof(int));
1721 if (!wpa_s->p2p_group_common_freqs)
1722 return;
1723
1724 for (i = 0; i < len; i++) {
1725 if (!wpa_s->go_params->freq_list[i])
1726 break;
1727 wpa_s->p2p_group_common_freqs[i] =
1728 wpa_s->go_params->freq_list[i];
1729 }
1730 wpa_s->p2p_group_common_freqs_num = i;
1731}
1732
1733
895d94de
KV		 1734static void p2p_config_write(struct wpa_supplicant *wpa_s)
1735{
1736#ifndef CONFIG_NO_CONFIG_WRITE
1737 if (wpa_s->parent->conf->update_config &&
1738 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
1739 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
1740#endif /* CONFIG_NO_CONFIG_WRITE */
1741}
1742
1743
b22128ef
JM		 1744static void p2p_go_configured(void *ctx, void *data)
1745{
1746 struct wpa_supplicant *wpa_s = ctx;
1747 struct p2p_go_neg_results *params = data;
1748 struct wpa_ssid *ssid;
4b6baa2f 1749 int network_id = -1;
b22128ef 1750
20beb96f
IP		 1751 p2p_go_save_group_common_freqs(wpa_s, params);
1752 p2p_go_dump_common_freqs(wpa_s);
1753
b22128ef
JM		 1754 ssid = wpa_s->current_ssid;
1755 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1756 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
d1b024c9
JM		 1757 if (wpa_s->global->p2p_group_formation == wpa_s)
1758 wpa_s->global->p2p_group_formation = NULL;
f8723e1e
JM		 1759 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1760 params->passphrase[0] == '\0' ?
1761 params->psk : NULL,
1762 params->passphrase,
1763 wpa_s->global->p2p_dev_addr,
1764 params->persistent_group, "");
61fc9048 1765 wpa_s->group_formation_reported = 1;
4b6baa2f 1766
b9da88d6
AO		 1767 if (wpa_s->parent->p2ps_method_config_any) {
1768 if (is_zero_ether_addr(wpa_s->parent->p2ps_join_addr)) {
1769 wpa_dbg(wpa_s, MSG_DEBUG,
1770 "P2PS: Setting default PIN for ANY");
1771 wpa_supplicant_ap_wps_pin(wpa_s, NULL,
1772 "12345670", NULL, 0,
1773 0);
1774 } else {
1775 wpa_dbg(wpa_s, MSG_DEBUG,
1776 "P2PS: Setting default PIN for " MACSTR,
1777 MAC2STR(wpa_s->parent->p2ps_join_addr));
1778 wpa_supplicant_ap_wps_pin(
1779 wpa_s, wpa_s->parent->p2ps_join_addr,
1780 "12345670", NULL, 0, 0);
1781 }
1782 wpa_s->parent->p2ps_method_config_any = 0;
306aaf49
KV		 1783 }
1784
151ab808 1785 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
01a57fe4 1786 if (params->persistent_group) {
4b6baa2f 1787 network_id = wpas_p2p_store_persistent_group(
b22128ef 1788 wpa_s->parent, ssid,
d7e70476 1789 wpa_s->global->p2p_dev_addr);
01a57fe4
JM		 1790 wpas_p2p_add_psk_list(wpa_s, ssid);
1791 }
4b6baa2f
JMB		 1792 if (network_id < 0)
1793 network_id = ssid->id;
1794 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
72044390 1795 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 1796 wpas_p2p_set_group_idle_timeout(wpa_s);
bbc6c729
JM		 1797
1798 if (wpa_s->p2p_first_connection_timeout) {
1799 wpa_dbg(wpa_s, MSG_DEBUG,
1800 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1801 wpa_s->p2p_first_connection_timeout);
1802 wpa_s->p2p_go_group_formation_completed = 0;
1803 wpa_s->global->p2p_group_formation = wpa_s;
1804 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1805 wpa_s->parent, NULL);
1806 eloop_register_timeout(
1807 wpa_s->p2p_first_connection_timeout, 0,
1808 wpas_p2p_group_formation_timeout,
1809 wpa_s->parent, NULL);
1810 }
1811
b22128ef
JM		 1812 return;
1813 }
1814
1815 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1816 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1817 params->peer_interface_addr)) {
1818 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1819 "filtering");
1820 return;
1821 }
db6ae69e 1822 if (params->wps_method == WPS_PBC) {
d601247c 1823 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
c3daaf33 1824 params->peer_device_addr);
db6ae69e
JM		 1825#ifdef CONFIG_WPS_NFC
1826 } else if (params->wps_method == WPS_NFC) {
1827 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1828 DEV_PW_NFC_CONNECTION_HANDOVER &&
1829 !wpa_s->parent->p2p_oob_dev_pw) {
1830 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1831 return;
1832 }
1833 wpas_ap_wps_add_nfc_pw(
1834 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1835 wpa_s->parent->p2p_oob_dev_pw,
1836 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1837 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1838#endif /* CONFIG_WPS_NFC */
1839 } else if (wpa_s->p2p_pin[0])
b22128ef 1840 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
c423708f 1841 wpa_s->p2p_pin, NULL, 0, 0);
b22128ef
JM		 1842 os_free(wpa_s->go_params);
1843 wpa_s->go_params = NULL;
1844}
1845
1846
1847static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1848 struct p2p_go_neg_results *params,
1849 int group_formation)
1850{
1851 struct wpa_ssid *ssid;
1852
ac06fb12
JM		 1853 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1854 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1855 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1856 "results");
b22128ef 1857 return;
ac06fb12 1858 }
b22128ef
JM		 1859
1860 ssid = wpa_config_add_network(wpa_s->conf);
ac06fb12
JM		 1861 if (ssid == NULL) {
1862 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
b22128ef 1863 return;
ac06fb12 1864 }
b22128ef 1865
a9e02d59 1866 wpa_s->show_group_started = 0;
58b40fdb 1867 wpa_s->p2p_go_group_formation_completed = 0;
61fc9048 1868 wpa_s->group_formation_reported = 0;
9f59fe8d 1869 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
a9e02d59 1870
b22128ef
JM		 1871 wpa_config_set_network_defaults(ssid);
1872 ssid->temporary = 1;
1873 ssid->p2p_group = 1;
1874 ssid->p2p_persistent_group = params->persistent_group;
1875 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1876 WPAS_MODE_P2P_GO;
1877 ssid->frequency = params->freq;
7aeac985 1878 ssid->ht40 = params->ht40;
20ea1ca4 1879 ssid->vht = params->vht;
b22128ef
JM		 1880 ssid->ssid = os_zalloc(params->ssid_len + 1);
1881 if (ssid->ssid) {
1882 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1883 ssid->ssid_len = params->ssid_len;
1884 }
1885 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1886 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1887 ssid->proto = WPA_PROTO_RSN;
1888 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
d77419d2
AM		 1889 ssid->group_cipher = WPA_CIPHER_CCMP;
1890 if (params->freq > 56160) {
1891 /*
1892 * Enable GCMP instead of CCMP as pairwise_cipher and
1893 * group_cipher in 60 GHz.
1894 */
1895 ssid->pairwise_cipher = WPA_CIPHER_GCMP;
1896 ssid->group_cipher = WPA_CIPHER_GCMP;
1897 }
bb4d4deb
MH		 1898 if (os_strlen(params->passphrase) > 0) {
1899 ssid->passphrase = os_strdup(params->passphrase);
1900 if (ssid->passphrase == NULL) {
92c4465b
JM		 1901 wpa_msg_global(wpa_s, MSG_ERROR,
1902 "P2P: Failed to copy passphrase for GO");
bb4d4deb
MH		 1903 wpa_config_remove_network(wpa_s->conf, ssid->id);
1904 return;
1905 }
1906 } else
1907 ssid->passphrase = NULL;
30c371e8
MH		 1908 ssid->psk_set = params->psk_set;
1909 if (ssid->psk_set)
1910 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
6350a148 1911 else if (ssid->passphrase)
30c371e8 1912 wpa_config_update_psk(ssid);
462a7439 1913 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
b22128ef
JM		 1914
1915 wpa_s->ap_configured_cb = p2p_go_configured;
1916 wpa_s->ap_configured_cb_ctx = wpa_s;
1917 wpa_s->ap_configured_cb_data = wpa_s->go_params;
3e66f789 1918 wpa_s->scan_req = NORMAL_SCAN_REQ;
7dcdcfd6 1919 wpa_s->connect_without_scan = ssid;
b22128ef
JM		 1920 wpa_s->reassociate = 1;
1921 wpa_s->disconnected = 0;
ac06fb12
JM		 1922 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1923 "start GO)");
b22128ef
JM		 1924 wpa_supplicant_req_scan(wpa_s, 0, 0);
1925}
1926
1927
1928static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1929 const struct wpa_supplicant *src)
1930{
1931 struct wpa_config *d;
1932 const struct wpa_config *s;
1933
1934 d = dst->conf;
1935 s = src->conf;
1936
1937#define C(n) if (s->n) d->n = os_strdup(s->n)
1938 C(device_name);
1939 C(manufacturer);
1940 C(model_name);
1941 C(model_number);
1942 C(serial_number);
b22128ef
JM		 1943 C(config_methods);
1944#undef C
3071e181 1945
2f646b6e
JB		 1946 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1947 os_memcpy(d->sec_device_type, s->sec_device_type,
1948 sizeof(d->sec_device_type));
1949 d->num_sec_device_types = s->num_sec_device_types;
1950
3071e181 1951 d->p2p_group_idle = s->p2p_group_idle;
1a471ff0 1952 d->p2p_go_freq_change_policy = s->p2p_go_freq_change_policy;
b029bd33 1953 d->p2p_intra_bss = s->p2p_intra_bss;
acc247b2 1954 d->persistent_reconnect = s->persistent_reconnect;
f571b593 1955 d->max_num_sta = s->max_num_sta;
1298c145 1956 d->pbc_in_m1 = s->pbc_in_m1;
4342326f 1957 d->ignore_old_scan_res = s->ignore_old_scan_res;
41b1a76a 1958 d->beacon_int = s->beacon_int;
f62a3c2f 1959 d->dtim_period = s->dtim_period;
0b8bcaa5 1960 d->p2p_go_ctwindow = s->p2p_go_ctwindow;
5046eb4e 1961 d->disassoc_low_ack = s->disassoc_low_ack;
f22f274b 1962 d->disable_scan_offload = s->disable_scan_offload;
c35e35ed 1963 d->passive_scan = s->passive_scan;
86e32081
JM		 1964
1965 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1966 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1967 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1968 }
07c1e987 1969 d->p2p_cli_probe = s->p2p_cli_probe;
b22128ef
JM		 1970}
1971
1972
2e5ba4b6
AS		 1973static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1974 char *ifname, size_t len)
1975{
1976 char *ifname_ptr = wpa_s->ifname;
1977
1978 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1979 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1980 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1981 }
1982
1983 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1984 if (os_strlen(ifname) >= IFNAMSIZ &&
1985 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1d399771
JM		 1986 int res;
1987
2e5ba4b6 1988 /* Try to avoid going over the IFNAMSIZ length limit */
1d399771
JM		 1989 res = os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
1990 if (os_snprintf_error(len, res) && len)
1991 ifname[len - 1] = '\0';
2e5ba4b6
AS		 1992 }
1993}
1994
1995
b22128ef
JM		 1996static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1997 enum wpa_driver_if_type type)
1998{
1999 char ifname[120], force_ifname[120];
2000
2001 if (wpa_s->pending_interface_name[0]) {
2002 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
2003 "- skip creation of a new one");
2004 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
2005 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
2006 "unknown?! ifname='%s'",
2007 wpa_s->pending_interface_name);
2008 return -1;
2009 }
2010 return 0;
2011 }
2012
2e5ba4b6 2013 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
b22128ef
JM		 2014 force_ifname[0] = '\0';
2015
2016 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
2017 ifname);
2018 wpa_s->p2p_group_idx++;
2019
2020 wpa_s->pending_interface_type = type;
2021 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
e17a2477 2022 wpa_s->pending_interface_addr, NULL) < 0) {
b22128ef
JM		 2023 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
2024 "interface");
2025 return -1;
2026 }
2027
2028 if (force_ifname[0]) {
2029 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
2030 force_ifname);
2031 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
2032 sizeof(wpa_s->pending_interface_name));
2033 } else
2034 os_strlcpy(wpa_s->pending_interface_name, ifname,
2035 sizeof(wpa_s->pending_interface_name));
2036 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
2037 MACSTR, wpa_s->pending_interface_name,
2038 MAC2STR(wpa_s->pending_interface_addr));
2039
2040 return 0;
2041}
2042
2043
2044static void wpas_p2p_remove_pending_group_interface(
2045 struct wpa_supplicant *wpa_s)
2046{
2047 if (!wpa_s->pending_interface_name[0] ||
2048 is_zero_ether_addr(wpa_s->pending_interface_addr))
2049 return; /* No pending virtual interface */
2050
2051 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
2052 wpa_s->pending_interface_name);
2053 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
2054 wpa_s->pending_interface_name);
2055 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2056 wpa_s->pending_interface_name[0] = '\0';
93eca615 2057 wpa_s->global->pending_group_iface_for_p2ps = 0;
b22128ef
JM		 2058}
2059
2060
2061static struct wpa_supplicant *
2062wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
2063{
2064 struct wpa_interface iface;
2065 struct wpa_supplicant *group_wpa_s;
2066
2067 if (!wpa_s->pending_interface_name[0]) {
2068 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
d75e8806
JM		 2069 if (!wpas_p2p_create_iface(wpa_s))
2070 return NULL;
2071 /*
2072 * Something has forced us to remove the pending interface; try
2073 * to create a new one and hope for the best that we will get
2074 * the same local address.
2075 */
2076 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2077 WPA_IF_P2P_CLIENT) < 0)
2078 return NULL;
b22128ef
JM		 2079 }
2080
2081 os_memset(&iface, 0, sizeof(iface));
2082 iface.ifname = wpa_s->pending_interface_name;
2083 iface.driver = wpa_s->driver->name;
78f79fe5
JM		 2084 if (wpa_s->conf->ctrl_interface == NULL &&
2085 wpa_s->parent != wpa_s &&
2086 wpa_s->p2p_mgmt &&
2087 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
2088 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
2089 else
2090 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
b22128ef 2091 iface.driver_param = wpa_s->conf->driver_param;
1772d348 2092 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
b22128ef
JM		 2093 if (group_wpa_s == NULL) {
2094 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
2095 "wpa_supplicant interface");
2096 return NULL;
2097 }
2098 wpa_s->pending_interface_name[0] = '\0';
b22128ef
JM		 2099 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
2100 P2P_GROUP_INTERFACE_CLIENT;
2101 wpa_s->global->p2p_group_formation = group_wpa_s;
93eca615 2102 wpa_s->global->pending_group_iface_for_p2ps = 0;
b22128ef
JM		 2103
2104 wpas_p2p_clone_config(group_wpa_s, wpa_s);
2105
2106 return group_wpa_s;
2107}
2108
2109
2110static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
2111 void *timeout_ctx)
2112{
2113 struct wpa_supplicant *wpa_s = eloop_ctx;
2114 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
d95c5994 2115 wpas_p2p_group_formation_failed(wpa_s, 0);
1075b295
JM		 2116}
2117
2118
d95c5994
JM		 2119static void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s,
2120 int already_deleted)
1075b295
JM		 2121{
2122 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2123 wpa_s->parent, NULL);
b22128ef
JM		 2124 if (wpa_s->global->p2p)
2125 p2p_group_formation_failed(wpa_s->global->p2p);
d95c5994 2126 wpas_group_formation_completed(wpa_s, 0, already_deleted);
b22128ef
JM		 2127}
2128
2129
95fb2db2
JM		 2130static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
2131{
2132 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
2133 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2134 wpa_s->parent, NULL);
2135 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2136 wpa_s->parent, NULL);
2137 wpa_s->global->p2p_fail_on_wps_complete = 0;
2138}
2139
2140
b2b688d1
VKE		 2141void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
2142{
2143 if (wpa_s->global->p2p_group_formation != wpa_s)
2144 return;
2145 /* Speed up group formation timeout since this cannot succeed */
2146 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
2147 wpa_s->parent, NULL);
2148 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
2149 wpa_s->parent, NULL);
2150}
2151
2152
152cff6b 2153static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
b22128ef
JM		 2154{
2155 struct wpa_supplicant *wpa_s = ctx;
2156
8eada5ca 2157 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 2158 wpa_drv_cancel_remain_on_channel(wpa_s);
2159 wpa_s->off_channel_freq = 0;
07a30a66 2160 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 2161 }
2162
2163 if (res->status) {
92c4465b
JM		 2164 wpa_msg_global(wpa_s, MSG_INFO,
2165 P2P_EVENT_GO_NEG_FAILURE "status=%d",
2166 res->status);
e5a359cf 2167 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef
JM		 2168 wpas_p2p_remove_pending_group_interface(wpa_s);
2169 return;
2170 }
2171
7c813acf
AK		 2172 if (!res->role_go) {
2173 /* Inform driver of the operating channel of GO. */
2174 wpa_drv_set_prob_oper_freq(wpa_s, res->freq);
2175 }
2176
e2308e4b
RM		 2177 if (wpa_s->p2p_go_ht40)
2178 res->ht40 = 1;
20ea1ca4
EP		 2179 if (wpa_s->p2p_go_vht)
2180 res->vht = 1;
e2308e4b 2181
8d660e04
JM		 2182 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
2183 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
2184 " wps_method=%s",
2185 res->role_go ? "GO" : "client", res->freq, res->ht40,
2186 MAC2STR(res->peer_device_addr),
2187 MAC2STR(res->peer_interface_addr),
2188 p2p_wps_method_text(res->wps_method));
e5a359cf 2189 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef 2190
23c84252
JM		 2191 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
2192 struct wpa_ssid *ssid;
2193 ssid = wpa_config_get_network(wpa_s->conf,
2194 wpa_s->p2p_persistent_id);
2195 if (ssid && ssid->disabled == 2 &&
2196 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
2197 size_t len = os_strlen(ssid->passphrase);
2198 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
2199 "on requested persistent group");
2200 os_memcpy(res->passphrase, ssid->passphrase, len);
2201 res->passphrase[len] = '\0';
2202 }
2203 }
2204
b22128ef
JM		 2205 if (wpa_s->create_p2p_iface) {
2206 struct wpa_supplicant *group_wpa_s =
2207 wpas_p2p_init_group_interface(wpa_s, res->role_go);
2208 if (group_wpa_s == NULL) {
2209 wpas_p2p_remove_pending_group_interface(wpa_s);
5eae87a7
EA		 2210 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
2211 wpa_s, NULL);
d95c5994 2212 wpas_p2p_group_formation_failed(wpa_s, 1);
b22128ef
JM		 2213 return;
2214 }
3c5126a4 2215 if (group_wpa_s != wpa_s) {
b22128ef
JM		 2216 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
2217 sizeof(group_wpa_s->p2p_pin));
3c5126a4
JM		 2218 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
2219 }
b22128ef
JM		 2220 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
2221 wpa_s->pending_interface_name[0] = '\0';
2222 group_wpa_s->p2p_in_provisioning = 1;
2223
941cd3ec 2224 if (res->role_go) {
b22128ef 2225 wpas_start_wps_go(group_wpa_s, res, 1);
941cd3ec
JM		 2226 } else {
2227 os_get_reltime(&group_wpa_s->scan_min_time);
b22128ef 2228 wpas_start_wps_enrollee(group_wpa_s, res);
941cd3ec 2229 }
b22128ef
JM		 2230 } else {
2231 wpa_s->p2p_in_provisioning = 1;
2232 wpa_s->global->p2p_group_formation = wpa_s;
2233
941cd3ec 2234 if (res->role_go) {
b22128ef 2235 wpas_start_wps_go(wpa_s, res, 1);
941cd3ec
JM		 2236 } else {
2237 os_get_reltime(&wpa_s->scan_min_time);
b22128ef 2238 wpas_start_wps_enrollee(ctx, res);
941cd3ec 2239 }
b22128ef
JM		 2240 }
2241
2242 wpa_s->p2p_long_listen = 0;
2243 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2244
2245 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ae3e3421
JM		 2246 eloop_register_timeout(15 + res->peer_config_timeout / 100,
2247 (res->peer_config_timeout % 100) * 10000,
2248 wpas_p2p_group_formation_timeout, wpa_s, NULL);
b22128ef
JM		 2249}
2250
2251
aa2b1256
MH		 2252static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id,
2253 u8 go_intent)
b22128ef
JM		 2254{
2255 struct wpa_supplicant *wpa_s = ctx;
92c4465b 2256 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
aa2b1256
MH		 2257 " dev_passwd_id=%u go_intent=%u", MAC2STR(src),
2258 dev_passwd_id, go_intent);
32d1bce0 2259
aa2b1256 2260 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id, go_intent);
b22128ef
JM		 2261}
2262
2263
152cff6b
JM		 2264static void wpas_dev_found(void *ctx, const u8 *addr,
2265 const struct p2p_peer_info *info,
2266 int new_device)
b22128ef 2267{
5506d184 2268#ifndef CONFIG_NO_STDOUT_DEBUG
b22128ef
JM		 2269 struct wpa_supplicant *wpa_s = ctx;
2270 char devtype[WPS_DEV_TYPE_BUFSIZE];
b125c48f
DS		 2271 char *wfd_dev_info_hex = NULL;
2272
2273#ifdef CONFIG_WIFI_DISPLAY
2274 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
2275 WFD_SUBELEM_DEVICE_INFO);
2276#endif /* CONFIG_WIFI_DISPLAY */
c5db8e51 2277
095b3c40
BG		 2278 if (info->p2ps_instance) {
2279 char str[256];
2280 const u8 *buf = wpabuf_head(info->p2ps_instance);
2281 size_t len = wpabuf_len(info->p2ps_instance);
2282
2283 while (len) {
2284 u32 id;
2285 u16 methods;
2286 u8 str_len;
2287
2288 if (len < 4 + 2 + 1)
2289 break;
2290 id = WPA_GET_LE32(buf);
2291 buf += sizeof(u32);
2292 methods = WPA_GET_BE16(buf);
2293 buf += sizeof(u16);
2294 str_len = *buf++;
2295 if (str_len > len - 4 - 2 - 1)
2296 break;
2297 os_memcpy(str, buf, str_len);
2298 str[str_len] = '\0';
2299 buf += str_len;
2300 len -= str_len + sizeof(u32) + sizeof(u16) + sizeof(u8);
2301
2302 wpa_msg_global(wpa_s, MSG_INFO,
2303 P2P_EVENT_DEVICE_FOUND MACSTR
2304 " p2p_dev_addr=" MACSTR
2305 " pri_dev_type=%s name='%s'"
2306 " config_methods=0x%x"
2307 " dev_capab=0x%x"
2308 " group_capab=0x%x"
2309 " adv_id=%x asp_svc=%s%s",
2310 MAC2STR(addr),
2311 MAC2STR(info->p2p_device_addr),
2312 wps_dev_type_bin2str(
2313 info->pri_dev_type,
2314 devtype, sizeof(devtype)),
2315 info->device_name, methods,
2316 info->dev_capab, info->group_capab,
2317 id, str,
2318 info->vendor_elems ?
2319 " vendor_elems=1" : "");
2320 }
2321 goto done;
2322 }
2323
92c4465b
JM		 2324 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
2325 " p2p_dev_addr=" MACSTR
2326 " pri_dev_type=%s name='%s' config_methods=0x%x "
34d45ea0 2327 "dev_capab=0x%x group_capab=0x%x%s%s%s new=%d",
92c4465b
JM		 2328 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
2329 wps_dev_type_bin2str(info->pri_dev_type, devtype,
2330 sizeof(devtype)),
b125c48f
DS		 2331 info->device_name, info->config_methods,
2332 info->dev_capab, info->group_capab,
2333 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
71a0e395 2334 wfd_dev_info_hex ? wfd_dev_info_hex : "",
34d45ea0
JM		 2335 info->vendor_elems ? " vendor_elems=1" : "",
2336 new_device);
d642d2d2 2337
095b3c40 2338done:
b125c48f 2339 os_free(wfd_dev_info_hex);
1b56d398 2340#endif /* CONFIG_NO_STDOUT_DEBUG */
b125c48f 2341
d642d2d2 2342 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
b22128ef
JM		 2343}
2344
2345
56eeb8f2
JB		 2346static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
2347{
2348 struct wpa_supplicant *wpa_s = ctx;
2349
92c4465b
JM		 2350 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
2351 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
3074d8f1 2352
56eeb8f2
JB		 2353 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
2354}
2355
2356
710ae9ac
JM		 2357static void wpas_find_stopped(void *ctx)
2358{
2359 struct wpa_supplicant *wpa_s = ctx;
92c4465b 2360 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
7b642dc8 2361 wpas_notify_p2p_find_stopped(wpa_s);
710ae9ac
JM		 2362}
2363
2364
e1d1c8e2
JM		 2365struct wpas_p2p_listen_work {
2366 unsigned int freq;
2367 unsigned int duration;
2368 struct wpabuf *probe_resp_ie;
2369};
2370
2371
2372static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
b22128ef 2373{
e1d1c8e2
JM		 2374 if (lwork == NULL)
2375 return;
2376 wpabuf_free(lwork->probe_resp_ie);
2377 os_free(lwork);
2378}
2379
2380
2381static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
2382{
2383 struct wpas_p2p_listen_work *lwork;
2384
2385 if (!wpa_s->p2p_listen_work)
2386 return;
2387
2388 lwork = wpa_s->p2p_listen_work->ctx;
2389 wpas_p2p_listen_work_free(lwork);
2390 radio_work_done(wpa_s->p2p_listen_work);
2391 wpa_s->p2p_listen_work = NULL;
2392}
2393
2394
2395static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
2396{
2397 struct wpa_supplicant *wpa_s = work->wpa_s;
2398 struct wpas_p2p_listen_work *lwork = work->ctx;
1f94e4ee 2399 unsigned int duration;
e1d1c8e2
JM		 2400
2401 if (deinit) {
b3253ebb
AO		 2402 if (work->started) {
2403 wpa_s->p2p_listen_work = NULL;
2404 wpas_stop_listen(wpa_s);
2405 }
e1d1c8e2
JM		 2406 wpas_p2p_listen_work_free(lwork);
2407 return;
2408 }
b22128ef 2409
e1d1c8e2
JM		 2410 wpa_s->p2p_listen_work = work;
2411
2412 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
b22128ef
JM		 2413
2414 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
2415 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
2416 "report received Probe Request frames");
e1d1c8e2
JM		 2417 wpas_p2p_listen_work_done(wpa_s);
2418 return;
b22128ef
JM		 2419 }
2420
e1d1c8e2
JM		 2421 wpa_s->pending_listen_freq = lwork->freq;
2422 wpa_s->pending_listen_duration = lwork->duration;
b22128ef 2423
1f94e4ee
JM		 2424 duration = lwork->duration;
2425#ifdef CONFIG_TESTING_OPTIONS
2426 if (wpa_s->extra_roc_dur) {
2427 wpa_printf(MSG_DEBUG, "TESTING: Increase ROC duration %u -> %u",
2428 duration, duration + wpa_s->extra_roc_dur);
2429 duration += wpa_s->extra_roc_dur;
2430 }
2431#endif /* CONFIG_TESTING_OPTIONS */
2432
2433 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, duration) < 0) {
b22128ef
JM		 2434 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
2435 "to remain on channel (%u MHz) for Listen "
e1d1c8e2
JM		 2436 "state", lwork->freq);
2437 wpas_p2p_listen_work_done(wpa_s);
b22128ef 2438 wpa_s->pending_listen_freq = 0;
e1d1c8e2 2439 return;
b22128ef 2440 }
09d660b9 2441 wpa_s->off_channel_freq = 0;
e1d1c8e2
JM		 2442 wpa_s->roc_waiting_drv_freq = lwork->freq;
2443}
2444
2445
2446static int wpas_start_listen(void *ctx, unsigned int freq,
2447 unsigned int duration,
2448 const struct wpabuf *probe_resp_ie)
2449{
2450 struct wpa_supplicant *wpa_s = ctx;
2451 struct wpas_p2p_listen_work *lwork;
2452
2453 if (wpa_s->p2p_listen_work) {
2454 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
2455 return -1;
2456 }
2457
2458 lwork = os_zalloc(sizeof(*lwork));
2459 if (lwork == NULL)
2460 return -1;
2461 lwork->freq = freq;
2462 lwork->duration = duration;
2463 if (probe_resp_ie) {
2464 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
2465 if (lwork->probe_resp_ie == NULL) {
2466 wpas_p2p_listen_work_free(lwork);
2467 return -1;
2468 }
2469 }
2470
2471 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
2472 lwork) < 0) {
2473 wpas_p2p_listen_work_free(lwork);
2474 return -1;
2475 }
b22128ef
JM		 2476
2477 return 0;
2478}
2479
2480
2481static void wpas_stop_listen(void *ctx)
2482{
2483 struct wpa_supplicant *wpa_s = ctx;
6cb22d2f 2484 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 2485 wpa_drv_cancel_remain_on_channel(wpa_s);
2486 wpa_s->off_channel_freq = 0;
07a30a66 2487 wpa_s->roc_waiting_drv_freq = 0;
b22128ef 2488 }
839b33ad 2489 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
07c1e987
MS		 2490
2491 /*
2492 * Don't cancel Probe Request RX reporting for a connected P2P Client
2493 * handling Probe Request frames.
2494 */
2495 if (!wpa_s->p2p_cli_probe)
2496 wpa_drv_probe_req_report(wpa_s, 0);
2497
e1d1c8e2 2498 wpas_p2p_listen_work_done(wpa_s);
b22128ef
JM		 2499}
2500
2501
0799b3f8
AO		 2502static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf,
2503 unsigned int freq)
b22128ef
JM		 2504{
2505 struct wpa_supplicant *wpa_s = ctx;
0799b3f8
AO		 2506 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1,
2507 freq);
b22128ef
JM		 2508}
2509
2510
b22128ef 2511static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
bbeee9b0
JB		 2512 const u8 *peer, const char *params,
2513 unsigned int generated_pin)
b22128ef 2514{
92c4465b
JM		 2515 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2516 " %08d%s", MAC2STR(peer), generated_pin, params);
b22128ef
JM		 2517}
2518
2519
2520static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2521 const u8 *peer, const char *params)
2522{
92c4465b
JM		 2523 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2524 "%s", MAC2STR(peer), params);
b22128ef
JM		 2525}
2526
2527
152cff6b
JM		 2528static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2529 const u8 *dev_addr, const u8 *pri_dev_type,
2530 const char *dev_name, u16 supp_config_methods,
2531 u8 dev_capab, u8 group_capab, const u8 *group_id,
2532 size_t group_id_len)
b22128ef
JM		 2533{
2534 struct wpa_supplicant *wpa_s = ctx;
2535 char devtype[WPS_DEV_TYPE_BUFSIZE];
c3f42784 2536 char params[300];
b22128ef 2537 u8 empty_dev_type[8];
bbeee9b0 2538 unsigned int generated_pin = 0;
c3f42784 2539 struct wpa_supplicant *group = NULL;
1d399771 2540 int res;
c3f42784
JM		 2541
2542 if (group_id) {
2543 for (group = wpa_s->global->ifaces; group; group = group->next)
2544 {
2545 struct wpa_ssid *s = group->current_ssid;
2546 if (s != NULL &&
2547 s->mode == WPAS_MODE_P2P_GO &&
2548 group_id_len - ETH_ALEN == s->ssid_len &&
2549 os_memcmp(group_id + ETH_ALEN, s->ssid,
2550 s->ssid_len) == 0)
2551 break;
2552 }
2553 }
b22128ef
JM		 2554
2555 if (pri_dev_type == NULL) {
2556 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2557 pri_dev_type = empty_dev_type;
2558 }
1d399771
JM		 2559 res = os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2560 " pri_dev_type=%s name='%s' config_methods=0x%x "
2561 "dev_capab=0x%x group_capab=0x%x%s%s",
2562 MAC2STR(dev_addr),
2563 wps_dev_type_bin2str(pri_dev_type, devtype,
2564 sizeof(devtype)),
2565 dev_name, supp_config_methods, dev_capab, group_capab,
2566 group ? " group=" : "",
2567 group ? group->ifname : "");
2568 if (os_snprintf_error(sizeof(params), res))
2569 wpa_printf(MSG_DEBUG, "P2P: PD Request event truncated");
b22128ef
JM		 2570 params[sizeof(params) - 1] = '\0';
2571
bbeee9b0
JB		 2572 if (config_methods & WPS_CONFIG_DISPLAY) {
2573 generated_pin = wps_generate_pin();
2574 wpas_prov_disc_local_display(wpa_s, peer, params,
2575 generated_pin);
2576 } else if (config_methods & WPS_CONFIG_KEYPAD)
b22128ef
JM		 2577 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2578 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
92c4465b
JM		 2579 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2580 MACSTR "%s", MAC2STR(peer), params);
dd8a7e05
JB		 2581
2582 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2583 P2P_PROV_DISC_SUCCESS,
2584 config_methods, generated_pin);
b22128ef
JM		 2585}
2586
2587
152cff6b 2588static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
b22128ef
JM		 2589{
2590 struct wpa_supplicant *wpa_s = ctx;
bbeee9b0 2591 unsigned int generated_pin = 0;
0918c4bf 2592 char params[20];
bbeee9b0 2593
c1931635
JM		 2594 if (wpa_s->pending_pd_before_join &&
2595 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2596 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2597 wpa_s->pending_pd_before_join = 0;
2598 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2599 "join-existing-group operation");
23318bea 2600 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
c1931635
JM		 2601 return;
2602 }
2603
0918c4bf 2604 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
1d399771
JM		 2605 wpa_s->pending_pd_use == AUTO_PD_GO_NEG) {
2606 int res;
2607
2608 res = os_snprintf(params, sizeof(params), " peer_go=%d",
2609 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2610 if (os_snprintf_error(sizeof(params), res))
2611 params[sizeof(params) - 1] = '\0';
2612 } else
0918c4bf
JM		 2613 params[0] = '\0';
2614
b22128ef 2615 if (config_methods & WPS_CONFIG_DISPLAY)
0918c4bf 2616 wpas_prov_disc_local_keypad(wpa_s, peer, params);
bbeee9b0
JB		 2617 else if (config_methods & WPS_CONFIG_KEYPAD) {
2618 generated_pin = wps_generate_pin();
0918c4bf
JM		 2619 wpas_prov_disc_local_display(wpa_s, peer, params,
2620 generated_pin);
bbeee9b0 2621 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
92c4465b
JM		 2622 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2623 MACSTR "%s", MAC2STR(peer), params);
a482883f 2624
dd8a7e05
JB		 2625 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2626 P2P_PROV_DISC_SUCCESS,
2627 config_methods, generated_pin);
b22128ef
JM		 2628}
2629
2630
19df9b07 2631static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
ab8ee776
KV		 2632 enum p2p_prov_disc_status status,
2633 u32 adv_id, const u8 *adv_mac,
2634 const char *deferred_session_resp)
dd8a7e05
JB		 2635{
2636 struct wpa_supplicant *wpa_s = ctx;
2637
aa9bb764
JM		 2638 if (wpa_s->p2p_fallback_to_go_neg) {
2639 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2640 "failed - fall back to GO Negotiation");
6b005121
JM		 2641 wpa_msg_global(wpa_s->parent, MSG_INFO,
2642 P2P_EVENT_FALLBACK_TO_GO_NEG
2643 "reason=PD-failed");
aa9bb764
JM		 2644 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2645 return;
2646 }
2647
175171ac
JM		 2648 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2649 wpa_s->pending_pd_before_join = 0;
2650 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2651 "join-existing-group operation (no ACK for PD "
2652 "Req attempts)");
23318bea 2653 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
175171ac
JM		 2654 return;
2655 }
2656
ab8ee776
KV		 2657 if (adv_id && adv_mac && deferred_session_resp) {
2658 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2659 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x"
2660 " deferred_session_resp='%s'",
2661 MAC2STR(peer), status, adv_id,
2662 deferred_session_resp);
2663 } else if (adv_id && adv_mac) {
2664 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2665 " p2p_dev_addr=" MACSTR " status=%d adv_id=%x",
2666 MAC2STR(peer), status, adv_id);
2667 } else {
2668 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2669 " p2p_dev_addr=" MACSTR " status=%d",
2670 MAC2STR(peer), status);
2671 }
f65a239b 2672
dd8a7e05
JB		 2673 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2674 status, 0, 0);
2675}
2676
2677
e280110d
IP		 2678static int freq_included(struct wpa_supplicant *wpa_s,
2679 const struct p2p_channels *channels,
2680 unsigned int freq)
72728c6f 2681{
e280110d
IP		 2682 if ((channels == NULL || p2p_channels_includes_freq(channels, freq)) &&
2683 wpas_p2p_go_is_peer_freq(wpa_s, freq))
2684 return 1;
2685 return 0;
72728c6f
SL		 2686}
2687
2688
5e1f4805
IP		 2689static void wpas_p2p_go_update_common_freqs(struct wpa_supplicant *wpa_s)
2690{
2691 unsigned int num = P2P_MAX_CHANNELS;
2692 int *common_freqs;
2693 int ret;
2694
2695 p2p_go_dump_common_freqs(wpa_s);
2696 common_freqs = os_calloc(num, sizeof(int));
2697 if (!common_freqs)
2698 return;
2699
2700 ret = p2p_group_get_common_freqs(wpa_s->p2p_group, common_freqs, &num);
2701 if (ret < 0) {
2702 wpa_dbg(wpa_s, MSG_DEBUG,
2703 "P2P: Failed to get group common freqs");
2704 os_free(common_freqs);
2705 return;
2706 }
2707
2708 os_free(wpa_s->p2p_group_common_freqs);
2709 wpa_s->p2p_group_common_freqs = common_freqs;
2710 wpa_s->p2p_group_common_freqs_num = num;
2711 p2p_go_dump_common_freqs(wpa_s);
2712}
2713
2714
1a471ff0
IP		 2715/*
2716 * Check if the given frequency is one of the possible operating frequencies
2717 * set after the completion of the GO Negotiation.
2718 */
2719static int wpas_p2p_go_is_peer_freq(struct wpa_supplicant *wpa_s, int freq)
2720{
2721 unsigned int i;
2722
2723 p2p_go_dump_common_freqs(wpa_s);
2724
2725 /* assume no restrictions */
2726 if (!wpa_s->p2p_group_common_freqs_num)
2727 return 1;
2728
2729 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
2730 if (wpa_s->p2p_group_common_freqs[i] == freq)
2731 return 1;
2732 }
2733 return 0;
2734}
2735
2736
98b05081
AO		 2737static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
2738 struct sta_info *sta, void *ctx)
2739{
2740 int *ecsa_support = ctx;
2741
2742 *ecsa_support &= sta->ecsa_supported;
2743
2744 return 0;
2745}
2746
2747
2748/* Check if all the peers support eCSA */
2749static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
2750{
2751 int ecsa_support = 1;
2752
2753 ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
2754 &ecsa_support);
2755
2756 return ecsa_support;
2757}
2758
2759
a0c90bb0
IP		 2760/**
2761 * Pick the best frequency to use from all the currently used frequencies.
2762 */
2763static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2764 struct wpa_used_freq_data *freqs,
2765 unsigned int num)
2766{
2767 unsigned int i, c;
2768
2769 /* find a candidate freq that is supported by P2P */
2770 for (c = 0; c < num; c++)
2771 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2772 break;
2773
2774 if (c == num)
2775 return 0;
2776
2777 /* once we have a candidate, try to find a 'better' one */
2778 for (i = c + 1; i < num; i++) {
2779 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2780 continue;
2781
2782 /*
2783 * 1. Infrastructure station interfaces have higher preference.
2784 * 2. P2P Clients have higher preference.
2785 * 3. All others.
2786 */
2787 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2788 c = i;
2789 break;
2790 }
2791
2792 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2793 c = i;
2794 }
2795 return freqs[c].freq;
2796}
2797
2798
b22128ef
JM		 2799static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2800 const u8 *go_dev_addr, const u8 *ssid,
2801 size_t ssid_len, int *go, u8 *group_bssid,
72728c6f 2802 int *force_freq, int persistent_group,
8e9f53c3
JM		 2803 const struct p2p_channels *channels,
2804 int dev_pw_id)
b22128ef
JM		 2805{
2806 struct wpa_supplicant *wpa_s = ctx;
2807 struct wpa_ssid *s;
a0c90bb0 2808 struct wpa_used_freq_data *freqs;
ab72eb52 2809 struct wpa_supplicant *grp;
a0c90bb0 2810 int best_freq;
b22128ef
JM		 2811
2812 if (!persistent_group) {
2813 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
c48414af
JM		 2814 " to join an active group (SSID: %s)",
2815 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
108def93 2816 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
131cb37c
JM		 2817 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2818 == 0 ||
2819 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
108def93
JM		 2820 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2821 "authorized invitation");
2822 goto accept_inv;
2823 }
8e9f53c3
JM		 2824
2825#ifdef CONFIG_WPS_NFC
57ae1f5b
DS		 2826 if (dev_pw_id >= 0 && wpa_s->p2p_nfc_tag_enabled &&
2827 dev_pw_id == wpa_s->p2p_oob_dev_pw_id) {
8e9f53c3 2828 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
57ae1f5b
DS		 2829 wpa_s->p2p_wps_method = WPS_NFC;
2830 wpa_s->pending_join_wps_method = WPS_NFC;
2831 os_memcpy(wpa_s->pending_join_dev_addr,
8e9f53c3 2832 go_dev_addr, ETH_ALEN);
57ae1f5b 2833 os_memcpy(wpa_s->pending_join_iface_addr,
8e9f53c3
JM		 2834 bssid, ETH_ALEN);
2835 goto accept_inv;
2836 }
2837#endif /* CONFIG_WPS_NFC */
2838
b22128ef
JM		 2839 /*
2840 * Do not accept the invitation automatically; notify user and
2841 * request approval.
2842 */
2843 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2844 }
2845
ab72eb52
JM		 2846 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2847 if (grp) {
2848 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2849 "running persistent group");
2850 if (*go)
2851 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2852 goto accept_inv;
2853 }
2854
77e4e853
JM		 2855 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2856 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2857 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2858 "invitation to re-invoke a persistent group");
829a1b32 2859 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
77e4e853 2860 } else if (!wpa_s->conf->persistent_reconnect)
b22128ef
JM		 2861 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2862
2863 for (s = wpa_s->conf->ssid; s; s = s->next) {
2864 if (s->disabled == 2 &&
2865 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2866 s->ssid_len == ssid_len &&
2867 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2868 break;
2869 }
2870
2871 if (!s) {
2872 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2873 " requested reinvocation of an unknown group",
2874 MAC2STR(sa));
2875 return P2P_SC_FAIL_UNKNOWN_GROUP;
2876 }
2877
2878 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2879 *go = 1;
2880 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2881 wpa_printf(MSG_DEBUG, "P2P: The only available "
2882 "interface is already in use - reject "
2883 "invitation");
2884 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2885 }
2886 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2887 } else if (s->mode == WPAS_MODE_P2P_GO) {
2888 *go = 1;
2889 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2890 {
2891 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2892 "interface address for the group");
2893 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2894 }
2895 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2896 ETH_ALEN);
2897 }
2898
108def93 2899accept_inv:
6cb27aa8
JM		 2900 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2901
a0c90bb0
IP		 2902 best_freq = 0;
2903 freqs = os_calloc(wpa_s->num_multichan_concurrent,
2904 sizeof(struct wpa_used_freq_data));
2905 if (freqs) {
2906 int num_channels = wpa_s->num_multichan_concurrent;
2907 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
2908 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
2909 os_free(freqs);
2910 }
2911
0d08efa4 2912 /* Get one of the frequencies currently in use */
a0c90bb0 2913 if (best_freq > 0) {
21e491f2 2914 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
a0c90bb0 2915 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
21e491f2
JM		 2916
2917 if (wpa_s->num_multichan_concurrent < 2 ||
2918 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2919 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 2920 *force_freq = best_freq;
21e491f2 2921 }
b22128ef
JM		 2922 }
2923
0d08efa4
IP		 2924 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2925 wpas_p2p_num_unused_channels(wpa_s) > 0) {
72728c6f
SL		 2926 if (*go == 0) {
2927 /* We are the client */
2928 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2929 "running a GO but we are capable of MCC, "
2930 "figure out the best channel to use");
2931 *force_freq = 0;
e280110d 2932 } else if (!freq_included(wpa_s, channels, *force_freq)) {
72728c6f
SL		 2933 /* We are the GO, and *force_freq is not in the
2934 * intersection */
2935 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2936 "in intersection but we are capable of MCC, "
2937 "figure out the best channel to use",
2938 *force_freq);
2939 *force_freq = 0;
2940 }
2941 }
2942
b22128ef
JM		 2943 return P2P_SC_SUCCESS;
2944}
2945
2946
2947static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2948 const u8 *ssid, size_t ssid_len,
2949 const u8 *go_dev_addr, u8 status,
2950 int op_freq)
2951{
2952 struct wpa_supplicant *wpa_s = ctx;
2953 struct wpa_ssid *s;
2954
2955 for (s = wpa_s->conf->ssid; s; s = s->next) {
2956 if (s->disabled == 2 &&
2957 s->ssid_len == ssid_len &&
2958 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2959 break;
2960 }
2961
2962 if (status == P2P_SC_SUCCESS) {
2963 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
c48414af
JM		 2964 " was accepted; op_freq=%d MHz, SSID=%s",
2965 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
b22128ef 2966 if (s) {
2cd07584 2967 int go = s->mode == WPAS_MODE_P2P_GO;
b22128ef 2968 wpas_p2p_group_add_persistent(
41d5ce9e 2969 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
dfaf11d6
JM		 2970 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0,
2971 1);
2049af2b 2972 } else if (bssid) {
67527166 2973 wpa_s->user_initiated_pd = 0;
108def93 2974 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
23318bea 2975 wpa_s->p2p_wps_method, 0, op_freq,
c48414af 2976 ssid, ssid_len);
b22128ef
JM		 2977 }
2978 return;
2979 }
2980
2981 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2982 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2983 " was rejected (status %u)", MAC2STR(sa), status);
2984 return;
2985 }
2986
2987 if (!s) {
2988 if (bssid) {
92c4465b
JM		 2989 wpa_msg_global(wpa_s, MSG_INFO,
2990 P2P_EVENT_INVITATION_RECEIVED
2991 "sa=" MACSTR " go_dev_addr=" MACSTR
2992 " bssid=" MACSTR " unknown-network",
2993 MAC2STR(sa), MAC2STR(go_dev_addr),
2994 MAC2STR(bssid));
b22128ef 2995 } else {
92c4465b
JM		 2996 wpa_msg_global(wpa_s, MSG_INFO,
2997 P2P_EVENT_INVITATION_RECEIVED
2998 "sa=" MACSTR " go_dev_addr=" MACSTR
2999 " unknown-network",
3000 MAC2STR(sa), MAC2STR(go_dev_addr));
b22128ef 3001 }
be5ab8d4
MJ		 3002 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr,
3003 bssid, 0, op_freq);
b22128ef
JM		 3004 return;
3005 }
3006
cd1e2309 3007 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
92c4465b
JM		 3008 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3009 "sa=" MACSTR " persistent=%d freq=%d",
3010 MAC2STR(sa), s->id, op_freq);
cd1e2309 3011 } else {
92c4465b
JM		 3012 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3013 "sa=" MACSTR " persistent=%d",
3014 MAC2STR(sa), s->id);
cd1e2309 3015 }
be5ab8d4
MJ		 3016 wpas_notify_p2p_invitation_received(wpa_s, sa, go_dev_addr, bssid,
3017 s->id, op_freq);
b22128ef
JM		 3018}
3019
3020
dbca75f8
JM		 3021static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3022 struct wpa_ssid *ssid,
f2c56602 3023 const u8 *peer, int inv)
dbca75f8
JM		 3024{
3025 size_t i;
b740401f 3026 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
dbca75f8
JM		 3027
3028 if (ssid == NULL)
3029 return;
3030
3031 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
79cd993a 3032 if (os_memcmp(ssid->p2p_client_list + i * 2 * ETH_ALEN, peer,
dbca75f8
JM		 3033 ETH_ALEN) == 0)
3034 break;
3035 }
8931a36c 3036 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
dbca75f8
JM		 3037 if (ssid->mode != WPAS_MODE_P2P_GO &&
3038 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3039 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3040 "due to invitation result", ssid->id);
3041 wpas_notify_network_removed(wpa_s, ssid);
3042 wpa_config_remove_network(wpa_s->conf, ssid->id);
3043 return;
3044 }
3045 return; /* Peer not found in client list */
3046 }
3047
3048 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
f2c56602
JM		 3049 "group %d client list%s",
3050 MAC2STR(peer), ssid->id,
3051 inv ? " due to invitation result" : "");
79cd993a
ST		 3052 os_memmove(ssid->p2p_client_list + i * 2 * ETH_ALEN,
3053 ssid->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3054 (ssid->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
dbca75f8 3055 ssid->num_p2p_clients--;
b740401f
IP		 3056 if (p2p_wpa_s->conf->update_config &&
3057 wpa_config_write(p2p_wpa_s->confname, p2p_wpa_s->conf))
dbca75f8 3058 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
dbca75f8
JM		 3059}
3060
3061
3062static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3063 const u8 *peer)
3064{
3065 struct wpa_ssid *ssid;
3066
3067 wpa_s = wpa_s->global->p2p_invite_group;
3068 if (wpa_s == NULL)
3069 return; /* No known invitation group */
3070 ssid = wpa_s->current_ssid;
3071 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3072 !ssid->p2p_persistent_group)
3073 return; /* Not operating as a GO in persistent group */
3074 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
3075 ssid->ssid, ssid->ssid_len);
f2c56602 3076 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8
JM		 3077}
3078
3079
54733624 3080static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
dbca75f8 3081 const struct p2p_channels *channels,
41d5ce9e
RR		 3082 const u8 *peer, int neg_freq,
3083 int peer_oper_freq)
b22128ef
JM		 3084{
3085 struct wpa_supplicant *wpa_s = ctx;
3086 struct wpa_ssid *ssid;
41d5ce9e 3087 int freq;
b22128ef
JM		 3088
3089 if (bssid) {
92c4465b
JM		 3090 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3091 "status=%d " MACSTR,
3092 status, MAC2STR(bssid));
b22128ef 3093 } else {
92c4465b
JM		 3094 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3095 "status=%d ", status);
b22128ef 3096 }
5ccdf84f 3097 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
b22128ef 3098
dbca75f8
JM		 3099 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3100 status, MAC2STR(peer));
3101 if (wpa_s->pending_invite_ssid_id == -1) {
6cbbae2c
IP		 3102 struct wpa_supplicant *group_if =
3103 wpa_s->global->p2p_invite_group;
3104
dbca75f8
JM		 3105 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3106 wpas_remove_persistent_client(wpa_s, peer);
6cbbae2c
IP		 3107
3108 /*
3109 * Invitation to an active group. If this is successful and we
3110 * are the GO, set the client wait to postpone some concurrent
3111 * operations and to allow provisioning and connection to happen
3112 * more quickly.
3113 */
3114 if (status == P2P_SC_SUCCESS &&
3115 group_if && group_if->current_ssid &&
3116 group_if->current_ssid->mode == WPAS_MODE_P2P_GO)
3117 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
3118 return;
dbca75f8 3119 }
706887fc 3120
77e4e853
JM		 3121 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3122 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3123 "invitation exchange to indicate readiness for "
3124 "re-invocation");
3125 }
3126
b22128ef 3127 if (status != P2P_SC_SUCCESS) {
dbca75f8
JM		 3128 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3129 ssid = wpa_config_get_network(
3130 wpa_s->conf, wpa_s->pending_invite_ssid_id);
f2c56602 3131 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8 3132 }
b22128ef
JM		 3133 wpas_p2p_remove_pending_group_interface(wpa_s);
3134 return;
3135 }
3136
3137 ssid = wpa_config_get_network(wpa_s->conf,
3138 wpa_s->pending_invite_ssid_id);
3139 if (ssid == NULL) {
3140 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3141 "data matching with invitation");
3142 return;
3143 }
3144
13ece96f
JM		 3145 /*
3146 * The peer could have missed our ctrl::ack frame for Invitation
3147 * Response and continue retransmitting the frame. To reduce the
3148 * likelihood of the peer not getting successful TX status for the
3149 * Invitation Response frame, wait a short time here before starting
3150 * the persistent group so that we will remain on the current channel to
3151 * acknowledge any possible retransmission from the peer.
3152 */
3153 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3154 "starting persistent group");
3155 os_sleep(0, 50000);
3156
41d5ce9e 3157 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
e280110d 3158 freq_included(wpa_s, channels, neg_freq))
41d5ce9e
RR		 3159 freq = neg_freq;
3160 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
e280110d 3161 freq_included(wpa_s, channels, peer_oper_freq))
41d5ce9e
RR		 3162 freq = peer_oper_freq;
3163 else
3164 freq = 0;
3165
3166 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3167 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
b22128ef 3168 wpas_p2p_group_add_persistent(wpa_s, ssid,
4d32c0c4 3169 ssid->mode == WPAS_MODE_P2P_GO,
062a7c0d 3170 wpa_s->p2p_persistent_go_freq,
41d5ce9e 3171 freq,
20ea1ca4
EP		 3172 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3173 channels,
bbc6c729
JM		 3174 ssid->mode == WPAS_MODE_P2P_GO ?
3175 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
dfaf11d6 3176 0, 1);
b22128ef
JM		 3177}
3178
3179
6f3bc72b
JM		 3180static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3181 unsigned int freq)
3182{
253f2e37
AH		 3183 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3184 return 1;
af8a827b 3185 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
6f3bc72b
JM		 3186}
3187
3188
3189static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3190{
3191 reg->channel[reg->channels] = chan;
3192 reg->channels++;
3193}
3194
3195
ac8d1011 3196static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3197 struct p2p_channels *chan,
3198 struct p2p_channels *cli_chan)
ac8d1011
JM		 3199{
3200 int i, cla = 0;
3201
7475d299
JM		 3202 wpa_s->global->p2p_24ghz_social_channels = 1;
3203
51e9f228
JM		 3204 os_memset(cli_chan, 0, sizeof(*cli_chan));
3205
ac8d1011
JM		 3206 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3207 "band");
3208
3209 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3210 chan->reg_class[cla].reg_class = 81;
6f3bc72b
JM		 3211 chan->reg_class[cla].channels = 0;
3212 for (i = 0; i < 11; i++) {
3213 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3214 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3215 }
3216 if (chan->reg_class[cla].channels)
3217 cla++;
ac8d1011
JM		 3218
3219 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3220 "band");
3221
3222 /* Operating class 115 - 5 GHz, channels 36-48 */
3223 chan->reg_class[cla].reg_class = 115;
6f3bc72b
JM		 3224 chan->reg_class[cla].channels = 0;
3225 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3226 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3227 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3228 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3229 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3230 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3231 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3232 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3233 if (chan->reg_class[cla].channels)
3234 cla++;
ac8d1011
JM		 3235
3236 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3237 "band");
3238
3239 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3240 chan->reg_class[cla].reg_class = 124;
6f3bc72b
JM		 3241 chan->reg_class[cla].channels = 0;
3242 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3243 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3244 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3245 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3246 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3247 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3248 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3249 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3250 if (chan->reg_class[cla].channels)
3251 cla++;
ac8d1011
JM		 3252
3253 chan->reg_classes = cla;
3254 return 0;
3255}
3256
3257
3258static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3259 u16 num_modes,
3260 enum hostapd_hw_mode mode)
3261{
3262 u16 i;
3263
3264 for (i = 0; i < num_modes; i++) {
3265 if (modes[i].mode == mode)
3266 return &modes[i];
3267 }
3268
3269 return NULL;
3270}
3271
3272
51e9f228 3273enum chan_allowed {
0a443580 3274 NOT_ALLOWED, NO_IR, ALLOWED
51e9f228
JM		 3275};
3276
6f3bc72b
JM		 3277static int has_channel(struct wpa_global *global,
3278 struct hostapd_hw_modes *mode, u8 chan, int *flags)
ac8d1011
JM		 3279{
3280 int i;
6f3bc72b
JM		 3281 unsigned int freq;
3282
3283 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3284 chan * 5;
3285 if (wpas_p2p_disallowed_freq(global, freq))
51e9f228 3286 return NOT_ALLOWED;
ac8d1011
JM		 3287
3288 for (i = 0; i < mode->num_channels; i++) {
3289 if (mode->channels[i].chan == chan) {
51222429
JM		 3290 if (flags)
3291 *flags = mode->channels[i].flag;
51e9f228
JM		 3292 if (mode->channels[i].flag &
3293 (HOSTAPD_CHAN_DISABLED |
3294 HOSTAPD_CHAN_RADAR))
3295 return NOT_ALLOWED;
0a443580
IP		 3296 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3297 return NO_IR;
51e9f228 3298 return ALLOWED;
ac8d1011
JM		 3299 }
3300 }
3301
51e9f228 3302 return NOT_ALLOWED;
ac8d1011
JM		 3303}
3304
3305
3306struct p2p_oper_class_map {
3307 enum hostapd_hw_mode mode;
3308 u8 op_class;
3309 u8 min_chan;
3310 u8 max_chan;
3311 u8 inc;
1595eb93 3312 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
ac8d1011
JM		 3313};
3314
8b423edb 3315static const struct p2p_oper_class_map op_class[] = {
931228aa 3316 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
931228aa
RM		 3317#if 0 /* Do not enable HT40 on 2 GHz for now */
3318 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3319 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3320#endif
3321 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3322 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
0c9fb14e 3323 { HOSTAPD_MODE_IEEE80211A, 125, 149, 169, 4, BW20 },
931228aa
RM		 3324 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3325 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3326 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3327 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
ca9bc5b5
EP		 3328
3329 /*
3330 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3331 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3332 * 80 MHz, but currently use the following definition for simplicity
3333 * (these center frequencies are not actual channels, which makes
3334 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3335 * removing invalid channels.
3336 */
3337 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
1595eb93 3338 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
931228aa
RM		 3339 { -1, 0, 0, 0, 0, BW20 }
3340};
3341
3342
ca9bc5b5
EP		 3343static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3344 struct hostapd_hw_modes *mode,
3345 u8 channel)
3346{
3347 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3348 unsigned int i;
3349
3350 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3351 return 0;
3352
3353 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3354 /*
3355 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3356 * so the center channel is 6 channels away from the start/end.
3357 */
3358 if (channel >= center_channels[i] - 6 &&
3359 channel <= center_channels[i] + 6)
3360 return center_channels[i];
3361
3362 return 0;
3363}
3364
3365
3366static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3367 struct hostapd_hw_modes *mode,
3368 u8 channel, u8 bw)
3369{
3370 u8 center_chan;
3371 int i, flags;
3372 enum chan_allowed res, ret = ALLOWED;
3373
3374 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3375 if (!center_chan)
3376 return NOT_ALLOWED;
3377 if (center_chan >= 58 && center_chan <= 138)
3378 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3379
3380 /* check all the channels are available */
3381 for (i = 0; i < 4; i++) {
3382 int adj_chan = center_chan - 6 + i * 4;
3383
3384 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3385 if (res == NOT_ALLOWED)
3386 return NOT_ALLOWED;
0a443580
IP		 3387 if (res == NO_IR)
3388 ret = NO_IR;
ca9bc5b5
EP		 3389
3390 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3391 return NOT_ALLOWED;
3392 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3393 return NOT_ALLOWED;
3394 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3395 return NOT_ALLOWED;
3396 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3397 return NOT_ALLOWED;
3398 }
3399
3400 return ret;
3401}
3402
3403
51e9f228
JM		 3404static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3405 struct hostapd_hw_modes *mode,
3406 u8 channel, u8 bw)
931228aa 3407{
cbf21c7c 3408 int flag = 0;
51e9f228
JM		 3409 enum chan_allowed res, res2;
3410
3411 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3412 if (bw == BW40MINUS) {
3413 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3414 return NOT_ALLOWED;
3415 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3416 } else if (bw == BW40PLUS) {
3417 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3418 return NOT_ALLOWED;
3419 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
ca9bc5b5
EP		 3420 } else if (bw == BW80) {
3421 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
51e9f228
JM		 3422 }
3423
3424 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3425 return NOT_ALLOWED;
0a443580
IP		 3426 if (res == NO_IR || res2 == NO_IR)
3427 return NO_IR;
51e9f228 3428 return res;
931228aa
RM		 3429}
3430
3431
b22128ef 3432static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3433 struct p2p_channels *chan,
3434 struct p2p_channels *cli_chan)
b22128ef 3435{
6bf731e8 3436 struct hostapd_hw_modes *mode;
51e9f228 3437 int cla, op, cli_cla;
b22128ef 3438
6bf731e8 3439 if (wpa_s->hw.modes == NULL) {
b22128ef
JM		 3440 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3441 "of all supported channels; assume dualband "
3442 "support");
51e9f228 3443 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
b22128ef
JM		 3444 }
3445
51e9f228 3446 cla = cli_cla = 0;
b22128ef 3447
ac8d1011 3448 for (op = 0; op_class[op].op_class; op++) {
8b423edb 3449 const struct p2p_oper_class_map *o = &op_class[op];
ac8d1011 3450 u8 ch;
51e9f228 3451 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
b22128ef 3452
6bf731e8 3453 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
ac8d1011
JM		 3454 if (mode == NULL)
3455 continue;
7475d299
JM		 3456 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3457 wpa_s->global->p2p_24ghz_social_channels = 1;
ac8d1011 3458 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
51e9f228
JM		 3459 enum chan_allowed res;
3460 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3461 if (res == ALLOWED) {
3462 if (reg == NULL) {
3463 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3464 o->op_class);
3465 reg = &chan->reg_class[cla];
3466 cla++;
3467 reg->reg_class = o->op_class;
3468 }
3469 reg->channel[reg->channels] = ch;
3470 reg->channels++;
0a443580 3471 } else if (res == NO_IR &&
51e9f228
JM		 3472 wpa_s->conf->p2p_add_cli_chan) {
3473 if (cli_reg == NULL) {
3474 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3475 o->op_class);
3476 cli_reg = &cli_chan->reg_class[cli_cla];
3477 cli_cla++;
3478 cli_reg->reg_class = o->op_class;
3479 }
3480 cli_reg->channel[cli_reg->channels] = ch;
3481 cli_reg->channels++;
ac8d1011 3482 }
ac8d1011
JM		 3483 }
3484 if (reg) {
3485 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3486 reg->channel, reg->channels);
3487 }
51e9f228
JM		 3488 if (cli_reg) {
3489 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3490 cli_reg->channel, cli_reg->channels);
3491 }
b22128ef
JM		 3492 }
3493
ac8d1011 3494 chan->reg_classes = cla;
51e9f228 3495 cli_chan->reg_classes = cli_cla;
b22128ef 3496
b22128ef
JM		 3497 return 0;
3498}
3499
3500
7aeac985
RM		 3501int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3502 struct hostapd_hw_modes *mode, u8 channel)
3503{
51e9f228
JM		 3504 int op;
3505 enum chan_allowed ret;
7aeac985
RM		 3506
3507 for (op = 0; op_class[op].op_class; op++) {
8b423edb 3508 const struct p2p_oper_class_map *o = &op_class[op];
7aeac985
RM		 3509 u8 ch;
3510
3511 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3512 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
e4a80d89
EP		 3513 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3514 ch != channel)
7aeac985
RM		 3515 continue;
3516 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
51e9f228 3517 if (ret == ALLOWED)
7aeac985 3518 return (o->bw == BW40MINUS) ? -1 : 1;
7aeac985
RM		 3519 }
3520 }
3521 return 0;
3522}
3523
3524
ca9bc5b5
EP		 3525int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3526 struct hostapd_hw_modes *mode, u8 channel)
3527{
3528 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3529 return 0;
3530
3531 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3532}
3533
3534
b22128ef
JM		 3535static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3536 size_t buf_len)
3537{
3538 struct wpa_supplicant *wpa_s = ctx;
3539
3540 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3541 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3542 break;
3543 }
3544 if (wpa_s == NULL)
3545 return -1;
3546
3547 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3548}
3549
3550
6f04642f
TB		 3551struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3552 const u8 *ssid, size_t ssid_len)
b1aebbc4 3553{
6f04642f
TB		 3554 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3555 struct wpa_ssid *s = wpa_s->current_ssid;
3556 if (s == NULL)
3557 continue;
3558 if (s->mode != WPAS_MODE_P2P_GO &&
3559 s->mode != WPAS_MODE_AP &&
3560 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3561 continue;
3562 if (s->ssid_len != ssid_len ||
af65bc36 3563 os_memcmp(ssid, s->ssid, ssid_len) != 0)
6f04642f
TB		 3564 continue;
3565 return wpa_s;
3566 }
3567
3568 return NULL;
3569
3570}
3571
b1aebbc4 3572
6f04642f
TB		 3573struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3574 const u8 *peer_dev_addr)
3575{
b1aebbc4
JM		 3576 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3577 struct wpa_ssid *ssid = wpa_s->current_ssid;
9f59fe8d 3578 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
b1aebbc4 3579 continue;
6f04642f
TB		 3580 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3581 return wpa_s;
b1aebbc4
JM		 3582 }
3583
6f04642f
TB		 3584 return NULL;
3585}
3586
3587
3588static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3589{
3590 struct wpa_supplicant *wpa_s = ctx;
3591
3592 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
b1aebbc4
JM		 3593}
3594
3595
a2d63657
RR		 3596static int wpas_is_concurrent_session_active(void *ctx)
3597{
3598 struct wpa_supplicant *wpa_s = ctx;
3599 struct wpa_supplicant *ifs;
3600
3601 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3602 if (ifs == wpa_s)
3603 continue;
3604 if (ifs->wpa_state > WPA_ASSOCIATED)
3605 return 1;
3606 }
3607 return 0;
3608}
3609
3610
ed496f13
JM		 3611static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3612{
3613 struct wpa_supplicant *wpa_s = ctx;
92c4465b 3614 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
ed496f13
JM		 3615}
3616
3617
f1a61311
JM		 3618int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3619 const char *conf_p2p_dev)
c68f6200
AS		 3620{
3621 struct wpa_interface iface;
3622 struct wpa_supplicant *p2pdev_wpa_s;
3623 char ifname[100];
3624 char force_name[100];
3625 int ret;
3626
1d399771
JM		 3627 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3628 wpa_s->ifname);
3629 if (os_snprintf_error(sizeof(ifname), ret))
3630 return -1;
c68f6200
AS		 3631 force_name[0] = '\0';
3632 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3633 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3634 force_name, wpa_s->pending_interface_addr, NULL);
3635 if (ret < 0) {
3636 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3637 return ret;
3638 }
3639 os_strlcpy(wpa_s->pending_interface_name, ifname,
3640 sizeof(wpa_s->pending_interface_name));
3641
3642 os_memset(&iface, 0, sizeof(iface));
3643 iface.p2p_mgmt = 1;
3644 iface.ifname = wpa_s->pending_interface_name;
3645 iface.driver = wpa_s->driver->name;
c68f6200 3646 iface.driver_param = wpa_s->conf->driver_param;
c16a7590
IP		 3647
3648 /*
3649 * If a P2P Device configuration file was given, use it as the interface
3650 * configuration file (instead of using parent's configuration file.
3651 */
f1a61311
JM		 3652 if (conf_p2p_dev) {
3653 iface.confname = conf_p2p_dev;
c16a7590
IP		 3654 iface.ctrl_interface = NULL;
3655 } else {
3656 iface.confname = wpa_s->confname;
3657 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3658 }
c16a7590 3659
1772d348 3660 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
c68f6200
AS		 3661 if (!p2pdev_wpa_s) {
3662 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3663 return -1;
3664 }
3665
3666 wpa_s->pending_interface_name[0] = '\0';
3667 return 0;
3668}
3669
3670
c64e3a08
JM		 3671static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3672 const u8 *noa, size_t noa_len)
3673{
3674 struct wpa_supplicant *wpa_s, *intf = ctx;
3675 char hex[100];
3676
3677 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3678 if (wpa_s->waiting_presence_resp)
3679 break;
3680 }
3681 if (!wpa_s) {
3682 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3683 return;
3684 }
3685 wpa_s->waiting_presence_resp = 0;
3686
3687 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3688 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3689 " status=%u noa=%s", MAC2STR(src), status, hex);
3690}
3691
3692
369678ad
KV		 3693static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3694 size_t ssid_len, u8 *go_dev_addr,
1f1a08b4
AO		 3695 u8 *ret_ssid, size_t *ret_ssid_len,
3696 u8 *intended_iface_addr)
369678ad
KV		 3697{
3698 struct wpa_supplicant *wpa_s = ctx;
3699 struct wpa_ssid *s;
3700
3701 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3702 if (s) {
3703 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3704 *ret_ssid_len = s->ssid_len;
3705 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
1f1a08b4
AO		 3706
3707 if (s->mode != WPAS_MODE_P2P_GO) {
3708 os_memset(intended_iface_addr, 0, ETH_ALEN);
3709 } else if (wpas_p2p_create_iface(wpa_s)) {
3710 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3711 return 0;
3712
3713 os_memcpy(intended_iface_addr,
3714 wpa_s->pending_interface_addr, ETH_ALEN);
3715 } else {
3716 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3717 ETH_ALEN);
3718 }
369678ad
KV		 3719 return 1;
3720 }
3721
3722 return 0;
3723}
3724
3725
3726static int wpas_get_go_info(void *ctx, u8 *intended_addr,
ebd32943
IP		 3727 u8 *ssid, size_t *ssid_len, int *group_iface,
3728 unsigned int *freq)
369678ad
KV		 3729{
3730 struct wpa_supplicant *wpa_s = ctx;
ebd32943 3731 struct wpa_supplicant *go;
369678ad 3732 struct wpa_ssid *s;
369678ad 3733
5cc6ec0f
AO		 3734 /*
3735 * group_iface will be set to 1 only if a dedicated interface for P2P
3736 * role is required. First, we try to reuse an active GO. However,
3737 * if it is not present, we will try to reactivate an existing
3738 * persistent group and set group_iface to 1, so the caller will know
3739 * that the pending interface should be used.
3740 */
3741 *group_iface = 0;
ebd32943
IP		 3742
3743 if (freq)
3744 *freq = 0;
3745
3746 go = wpas_p2p_get_go_group(wpa_s);
3747 if (!go) {
369678ad 3748 s = wpas_p2p_get_persistent_go(wpa_s);
5cc6ec0f 3749 *group_iface = wpas_p2p_create_iface(wpa_s);
369678ad 3750 if (s)
ebd32943 3751 os_memcpy(intended_addr, s->bssid, ETH_ALEN);
5cc6ec0f
AO		 3752 else
3753 return 0;
ebd32943
IP		 3754 } else {
3755 s = go->current_ssid;
3756 os_memcpy(intended_addr, go->own_addr, ETH_ALEN);
3757 if (freq)
3758 *freq = go->assoc_freq;
369678ad
KV		 3759 }
3760
369678ad
KV		 3761 os_memcpy(ssid, s->ssid, s->ssid_len);
3762 *ssid_len = s->ssid_len;
3763
3764 return 1;
3765}
3766
3767
895d94de
KV		 3768static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3769 const u8 *ssid, size_t ssid_len)
3770{
3771 struct wpa_supplicant *wpa_s = ctx;
3772 struct wpa_ssid *s;
3773 int save_config = 0;
3774 size_t i;
3775
3776 /* Start with our first choice of Persistent Groups */
3777 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3778 if (go && ssid && ssid_len &&
3779 s->ssid_len == ssid_len &&
3780 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3781 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3782 break;
3783
3784 /* Remove stale persistent group */
3785 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3786 wpa_config_remove_network(wpa_s->conf, s->id);
3787 save_config = 1;
3788 continue;
3789 }
3790
3791 for (i = 0; i < s->num_p2p_clients; i++) {
3792 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3793 peer, ETH_ALEN) != 0)
3794 continue;
3795
3796 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3797 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3798 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3799 break;
3800 }
3801 s->num_p2p_clients--;
3802 save_config = 1;
3803 }
3804
3805 if (save_config)
3806 p2p_config_write(wpa_s);
3807
3808 /* Return TRUE if valid SSID remains */
3809 return s != NULL;
3810}
3811
3812
88f3d7c9
MS		 3813static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3814 const u8 *feat_cap, size_t feat_cap_len)
3815{
3816 static const char pref[] = " feature_cap=";
3817 int ret;
3818
3819 buf[0] = '\0';
3820
3821 /*
3822 * We expect a feature capability to contain at least one byte to be
3823 * reported. The string buffer provided by the caller function is
3824 * expected to be big enough to contain all bytes of the attribute for
3825 * known specifications. This function truncates the reported bytes if
3826 * the feature capability data exceeds the string buffer size.
3827 */
3828 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3829 return;
3830
3831 os_memcpy(buf, pref, sizeof(pref));
3832 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3833 buf_len - sizeof(pref) + 1,
3834 feat_cap, feat_cap_len);
3835
3836 if (ret != (2 * (int) feat_cap_len))
3837 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3838}
3839
3840
5fefce27
KV		 3841static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3842 const u8 *adv_mac, const u8 *ses_mac,
3843 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3844 u8 conncap, int passwd_id,
3845 const u8 *persist_ssid,
3846 size_t persist_ssid_size, int response_done,
88f3d7c9 3847 int prov_start, const char *session_info,
8bb8e6ed
IP		 3848 const u8 *feat_cap, size_t feat_cap_len,
3849 unsigned int freq)
5fefce27
KV		 3850{
3851 struct wpa_supplicant *wpa_s = ctx;
3852 u8 mac[ETH_ALEN];
cd571e14 3853 struct wpa_ssid *persistent_go, *stale, *s = NULL;
5fefce27
KV		 3854 int save_config = 0;
3855 struct wpa_supplicant *go_wpa_s;
88f3d7c9 3856 char feat_cap_str[256];
5fefce27
KV		 3857
3858 if (!dev)
3859 return;
3860
3861 os_memset(mac, 0, ETH_ALEN);
3862 if (!adv_mac)
3863 adv_mac = mac;
3864 if (!ses_mac)
3865 ses_mac = mac;
3866 if (!grp_mac)
3867 grp_mac = mac;
3868
88f3d7c9
MS		 3869 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3870 feat_cap, feat_cap_len);
3871
5fefce27
KV		 3872 if (prov_start) {
3873 if (session_info == NULL) {
3874 wpa_msg_global(wpa_s, MSG_INFO,
3875 P2P_EVENT_P2PS_PROVISION_START MACSTR
3876 " adv_id=%x conncap=%x"
3877 " adv_mac=" MACSTR
3878 " session=%x mac=" MACSTR
88f3d7c9 3879 " dev_passwd_id=%d%s",
5fefce27
KV		 3880 MAC2STR(dev), adv_id, conncap,
3881 MAC2STR(adv_mac),
3882 ses_id, MAC2STR(ses_mac),
88f3d7c9 3883 passwd_id, feat_cap_str);
5fefce27
KV		 3884 } else {
3885 wpa_msg_global(wpa_s, MSG_INFO,
3886 P2P_EVENT_P2PS_PROVISION_START MACSTR
3887 " adv_id=%x conncap=%x"
3888 " adv_mac=" MACSTR
3889 " session=%x mac=" MACSTR
88f3d7c9 3890 " dev_passwd_id=%d info='%s'%s",
5fefce27
KV		 3891 MAC2STR(dev), adv_id, conncap,
3892 MAC2STR(adv_mac),
3893 ses_id, MAC2STR(ses_mac),
88f3d7c9 3894 passwd_id, session_info, feat_cap_str);
5fefce27
KV		 3895 }
3896 return;
3897 }
3898
3899 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
3900 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3901
3902 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
3903 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3904 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3905
3906 if (persistent_go && !persistent_go->num_p2p_clients) {
3907 /* remove empty persistent GO */
3908 wpa_config_remove_network(wpa_s->conf,
3909 persistent_go->id);
3910 }
3911
3912 wpa_msg_global(wpa_s, MSG_INFO,
3913 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3914 " status=%d"
3915 " adv_id=%x adv_mac=" MACSTR
88f3d7c9 3916 " session=%x mac=" MACSTR "%s",
5fefce27
KV		 3917 MAC2STR(dev), status,
3918 adv_id, MAC2STR(adv_mac),
88f3d7c9 3919 ses_id, MAC2STR(ses_mac), feat_cap_str);
5fefce27
KV		 3920 return;
3921 }
3922
3923 /* Clean up stale persistent groups with this device */
cd571e14
MS		 3924 if (persist_ssid && persist_ssid_size)
3925 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
3926 persist_ssid_size);
1f14e2bf
AO		 3927
3928 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
2a098e36 3929 is_zero_ether_addr(grp_mac)) {
1f14e2bf
AO		 3930 wpa_dbg(wpa_s, MSG_ERROR,
3931 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
3932 return;
3933 }
3934
5fefce27
KV		 3935 for (;;) {
3936 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
3937 if (!stale)
3938 break;
3939
3940 if (s && s->ssid_len == stale->ssid_len &&
3941 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
3942 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
3943 break;
3944
3945 /* Remove stale persistent group */
3946 if (stale->mode != WPAS_MODE_P2P_GO ||
3947 stale->num_p2p_clients <= 1) {
3948 wpa_config_remove_network(wpa_s->conf, stale->id);
3949 } else {
3950 size_t i;
3951
3952 for (i = 0; i < stale->num_p2p_clients; i++) {
3953 if (os_memcmp(stale->p2p_client_list +
3954 i * ETH_ALEN,
3955 dev, ETH_ALEN) == 0) {
3956 os_memmove(stale->p2p_client_list +
3957 i * ETH_ALEN,
3958 stale->p2p_client_list +
3959 (i + 1) * ETH_ALEN,
3960 (stale->num_p2p_clients -
3961 i - 1) * ETH_ALEN);
3962 break;
3963 }
3964 }
3965 stale->num_p2p_clients--;
3966 }
3967 save_config = 1;
3968 }
3969
3970 if (save_config)
3971 p2p_config_write(wpa_s);
3972
3973 if (s) {
3974 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
3975 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
3976
3977 if (persistent_go && s != persistent_go &&
3978 !persistent_go->num_p2p_clients) {
3979 /* remove empty persistent GO */
3980 wpa_config_remove_network(wpa_s->conf,
3981 persistent_go->id);
3982 /* Save config */
3983 }
3984
3985 wpa_msg_global(wpa_s, MSG_INFO,
3986 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
3987 " status=%d"
3988 " adv_id=%x adv_mac=" MACSTR
3989 " session=%x mac=" MACSTR
88f3d7c9 3990 " persist=%d%s",
5fefce27
KV		 3991 MAC2STR(dev), status,
3992 adv_id, MAC2STR(adv_mac),
88f3d7c9 3993 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
5fefce27
KV		 3994 return;
3995 }
3996
3997 if (conncap == P2PS_SETUP_GROUP_OWNER) {
23bb9828
AO		 3998 /*
3999 * We need to copy the interface name. Simply saving a
4000 * pointer isn't enough, since if we use pending_interface_name
4001 * it will be overwritten when the group is added.
4002 */
4003 char go_ifname[100];
4004
4005 go_ifname[0] = '\0';
5fefce27
KV		 4006 if (!go_wpa_s) {
4007 wpa_s->global->pending_p2ps_group = 1;
8bb8e6ed 4008 wpa_s->global->pending_p2ps_group_freq = freq;
5fefce27 4009
a698d6c8 4010 if (!wpas_p2p_create_iface(wpa_s))
23bb9828
AO		 4011 os_memcpy(go_ifname, wpa_s->ifname,
4012 sizeof(go_ifname));
5fefce27 4013 else if (wpa_s->pending_interface_name[0])
23bb9828
AO		 4014 os_memcpy(go_ifname,
4015 wpa_s->pending_interface_name,
4016 sizeof(go_ifname));
5fefce27 4017
23bb9828 4018 if (!go_ifname[0]) {
5fefce27
KV		 4019 wpas_p2ps_prov_complete(
4020 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
4021 dev, adv_mac, ses_mac,
2a098e36 4022 grp_mac, adv_id, ses_id, 0, 0,
8bb8e6ed 4023 NULL, 0, 0, 0, NULL, NULL, 0, 0);
5fefce27
KV		 4024 return;
4025 }
4026
4027 /* If PD Resp complete, start up the GO */
4028 if (response_done && persistent_go) {
4029 wpas_p2p_group_add_persistent(
4030 wpa_s, persistent_go,
8bb8e6ed 4031 0, 0, freq, 0, 0, NULL,
5fefce27
KV		 4032 persistent_go->mode ==
4033 WPAS_MODE_P2P_GO ?
4034 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
dfaf11d6 4035 0, 0);
5fefce27 4036 } else if (response_done) {
8bb8e6ed 4037 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0);
5fefce27 4038 }
306aaf49
KV		 4039
4040 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
b9da88d6
AO		 4041 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
4042 ETH_ALEN);
4043 wpa_s->p2ps_method_config_any = 1;
306aaf49 4044 }
5fefce27 4045 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
23bb9828
AO		 4046 os_memcpy(go_ifname, go_wpa_s->ifname,
4047 sizeof(go_ifname));
5fefce27 4048
b9da88d6
AO		 4049 if (is_zero_ether_addr(grp_mac)) {
4050 wpa_dbg(go_wpa_s, MSG_DEBUG,
4051 "P2P: Setting PIN-1 for ANY");
4052 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
4053 "12345670", NULL, 0,
4054 0);
4055 } else {
4056 wpa_dbg(go_wpa_s, MSG_DEBUG,
4057 "P2P: Setting PIN-1 for " MACSTR,
4058 MAC2STR(grp_mac));
4059 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
4060 "12345670", NULL, 0,
4061 0);
4062 }
306aaf49 4063
b9da88d6
AO		 4064 os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
4065 wpa_s->p2ps_method_config_any = 1;
5fefce27
KV		 4066 }
4067
4068 wpa_msg_global(wpa_s, MSG_INFO,
4069 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4070 " status=%d conncap=%x"
4071 " adv_id=%x adv_mac=" MACSTR
4072 " session=%x mac=" MACSTR
88f3d7c9 4073 " dev_passwd_id=%d go=%s%s",
5fefce27
KV		 4074 MAC2STR(dev), status, conncap,
4075 adv_id, MAC2STR(adv_mac),
4076 ses_id, MAC2STR(ses_mac),
88f3d7c9 4077 passwd_id, go_ifname, feat_cap_str);
5fefce27
KV		 4078 return;
4079 }
4080
4081 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4082 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4083
4084 if (persistent_go && !persistent_go->num_p2p_clients) {
4085 /* remove empty persistent GO */
4086 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
4087 }
4088
4089 if (conncap == P2PS_SETUP_CLIENT) {
4090 wpa_msg_global(wpa_s, MSG_INFO,
4091 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4092 " status=%d conncap=%x"
4093 " adv_id=%x adv_mac=" MACSTR
4094 " session=%x mac=" MACSTR
88f3d7c9 4095 " dev_passwd_id=%d join=" MACSTR "%s",
5fefce27
KV		 4096 MAC2STR(dev), status, conncap,
4097 adv_id, MAC2STR(adv_mac),
4098 ses_id, MAC2STR(ses_mac),
88f3d7c9 4099 passwd_id, MAC2STR(grp_mac), feat_cap_str);
5fefce27
KV		 4100 } else {
4101 wpa_msg_global(wpa_s, MSG_INFO,
4102 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4103 " status=%d conncap=%x"
4104 " adv_id=%x adv_mac=" MACSTR
4105 " session=%x mac=" MACSTR
88f3d7c9 4106 " dev_passwd_id=%d%s",
5fefce27
KV		 4107 MAC2STR(dev), status, conncap,
4108 adv_id, MAC2STR(adv_mac),
4109 ses_id, MAC2STR(ses_mac),
88f3d7c9 4110 passwd_id, feat_cap_str);
5fefce27
KV		 4111 }
4112}
4113
4114
0f1034e3
SD		 4115static int _wpas_p2p_in_progress(void *ctx)
4116{
4117 struct wpa_supplicant *wpa_s = ctx;
4118 return wpas_p2p_in_progress(wpa_s);
4119}
4120
4121
9a58e521
KV		 4122static int wpas_prov_disc_resp_cb(void *ctx)
4123{
4124 struct wpa_supplicant *wpa_s = ctx;
4125 struct wpa_ssid *persistent_go;
8bb8e6ed 4126 unsigned int freq;
9a58e521
KV		 4127
4128 if (!wpa_s->global->pending_p2ps_group)
4129 return 0;
4130
8bb8e6ed
IP		 4131 freq = wpa_s->global->pending_p2ps_group_freq;
4132 wpa_s->global->pending_p2ps_group_freq = 0;
9a58e521
KV		 4133 wpa_s->global->pending_p2ps_group = 0;
4134
4135 if (wpas_p2p_get_go_group(wpa_s))
4136 return 0;
4137 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4138
4139 if (persistent_go) {
4140 wpas_p2p_group_add_persistent(
4141 wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
4142 persistent_go->mode == WPAS_MODE_P2P_GO ?
dfaf11d6 4143 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
9a58e521 4144 } else {
8bb8e6ed 4145 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0);
9a58e521
KV		 4146 }
4147
4148 return 1;
4149}
4150
4151
fc71f7d9
AK		 4152static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4153 unsigned int *len,
4154 unsigned int *freq_list)
4155{
4156 struct wpa_supplicant *wpa_s = ctx;
4157
4158 return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4159 WPA_IF_P2P_CLIENT, len, freq_list);
4160}
4161
4162
b22128ef
JM		 4163/**
4164 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4165 * @global: Pointer to global data from wpa_supplicant_init()
4166 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4167 * Returns: 0 on success, -1 on failure
4168 */
4169int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4170{
4171 struct p2p_config p2p;
f95cac27 4172 int i;
b22128ef 4173
f2b3f4de
SS		 4174 if (wpa_s->conf->p2p_disabled)
4175 return 0;
4176
b22128ef
JM		 4177 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4178 return 0;
4179
b22128ef
JM		 4180 if (global->p2p)
4181 return 0;
4182
4183 os_memset(&p2p, 0, sizeof(p2p));
b22128ef 4184 p2p.cb_ctx = wpa_s;
ed496f13 4185 p2p.debug_print = wpas_p2p_debug_print;
b22128ef
JM		 4186 p2p.p2p_scan = wpas_p2p_scan;
4187 p2p.send_action = wpas_send_action;
4188 p2p.send_action_done = wpas_send_action_done;
4189 p2p.go_neg_completed = wpas_go_neg_completed;
4190 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4191 p2p.dev_found = wpas_dev_found;
56eeb8f2 4192 p2p.dev_lost = wpas_dev_lost;
710ae9ac 4193 p2p.find_stopped = wpas_find_stopped;
b22128ef
JM		 4194 p2p.start_listen = wpas_start_listen;
4195 p2p.stop_listen = wpas_stop_listen;
4196 p2p.send_probe_resp = wpas_send_probe_resp;
4197 p2p.sd_request = wpas_sd_request;
4198 p2p.sd_response = wpas_sd_response;
4199 p2p.prov_disc_req = wpas_prov_disc_req;
4200 p2p.prov_disc_resp = wpas_prov_disc_resp;
dd8a7e05 4201 p2p.prov_disc_fail = wpas_prov_disc_fail;
b22128ef
JM		 4202 p2p.invitation_process = wpas_invitation_process;
4203 p2p.invitation_received = wpas_invitation_received;
4204 p2p.invitation_result = wpas_invitation_result;
4205 p2p.get_noa = wpas_get_noa;
b1aebbc4 4206 p2p.go_connected = wpas_go_connected;
c64e3a08 4207 p2p.presence_resp = wpas_presence_resp;
a2d63657 4208 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
0f1034e3 4209 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
369678ad
KV		 4210 p2p.get_persistent_group = wpas_get_persistent_group;
4211 p2p.get_go_info = wpas_get_go_info;
895d94de 4212 p2p.remove_stale_groups = wpas_remove_stale_groups;
5fefce27 4213 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
9a58e521 4214 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
1300cc8e 4215 p2p.p2ps_group_capability = p2ps_group_capability;
fc71f7d9 4216 p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
b22128ef
JM		 4217
4218 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
d7e70476 4219 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
b22128ef 4220 p2p.dev_name = wpa_s->conf->device_name;
b6e01800
JM		 4221 p2p.manufacturer = wpa_s->conf->manufacturer;
4222 p2p.model_name = wpa_s->conf->model_name;
4223 p2p.model_number = wpa_s->conf->model_number;
4224 p2p.serial_number = wpa_s->conf->serial_number;
4225 if (wpa_s->wps) {
4226 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4227 p2p.config_methods = wpa_s->wps->config_methods;
4228 }
b22128ef 4229
1595eb93
AM		 4230 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4231 wpa_printf(MSG_ERROR,
4232 "P2P: Failed to configure supported channel list");
4233 return -1;
4234 }
4235
b22128ef
JM		 4236 if (wpa_s->conf->p2p_listen_reg_class &&
4237 wpa_s->conf->p2p_listen_channel) {
4238 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4239 p2p.channel = wpa_s->conf->p2p_listen_channel;
e3bd6e9d 4240 p2p.channel_forced = 1;
b22128ef 4241 } else {
b22128ef
JM		 4242 /*
4243 * Pick one of the social channels randomly as the listen
4244 * channel.
4245 */
1595eb93
AM		 4246 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4247 &p2p.channel) != 0) {
5678a2d8
JM		 4248 wpa_printf(MSG_INFO,
4249 "P2P: No social channels supported by the driver - do not enable P2P");
4250 return 0;
1595eb93 4251 }
e3bd6e9d 4252 p2p.channel_forced = 0;
b22128ef 4253 }
1595eb93
AM		 4254 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4255 p2p.reg_class, p2p.channel);
b22128ef
JM		 4256
4257 if (wpa_s->conf->p2p_oper_reg_class &&
4258 wpa_s->conf->p2p_oper_channel) {
4259 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4260 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 4261 p2p.cfg_op_channel = 1;
4262 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4263 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4264
b22128ef 4265 } else {
b22128ef 4266 /*
1595eb93
AM		 4267 * Use random operation channel from 2.4 GHz band social
4268 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4269 * other preference is indicated.
b22128ef 4270 */
1595eb93
AM		 4271 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4272 &p2p.op_channel) != 0) {
4273 wpa_printf(MSG_ERROR,
4274 "P2P: Failed to select random social channel as operation channel");
df2508d7 4275 return -1;
1595eb93 4276 }
7cfc4ac3
AGS		 4277 p2p.cfg_op_channel = 0;
4278 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4279 "%d:%d", p2p.op_reg_class, p2p.op_channel);
b22128ef 4280 }
010b5f9b
YW		 4281
4282 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4283 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4284 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4285 }
4286
b22128ef
JM		 4287 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4288 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4289 p2p.country[2] = 0x04;
4290 } else
aaca6505 4291 os_memcpy(p2p.country, "XX\x04", 3);
b22128ef 4292
2f646b6e
JB		 4293 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4294 WPS_DEV_TYPE_LEN);
b22128ef 4295
2f646b6e
JB		 4296 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4297 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4298 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
b22128ef
JM		 4299
4300 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4301 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4302
de979d8f 4303 p2p.max_peers = 100;
b22128ef
JM		 4304
4305 if (wpa_s->conf->p2p_ssid_postfix) {
4306 p2p.ssid_postfix_len =
4307 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4308 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4309 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4310 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4311 p2p.ssid_postfix_len);
4312 }
4313
0f66abd2
SS		 4314 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4315
96beff11
JM		 4316 p2p.max_listen = wpa_s->max_remain_on_chan;
4317
1b928f96
JM		 4318 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4319 wpa_s->conf->p2p_passphrase_len <= 63)
4320 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4321 else
4322 p2p.passphrase_len = 8;
4323
b22128ef
JM		 4324 global->p2p = p2p_init(&p2p);
4325 if (global->p2p == NULL)
4326 return -1;
ab28911d 4327 global->p2p_init_wpa_s = wpa_s;
b22128ef 4328
f95cac27
JMB		 4329 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4330 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4331 continue;
4332 p2p_add_wps_vendor_extension(
4333 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4334 }
4335
556b30da
JM		 4336 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4337
b22128ef
JM		 4338 return 0;
4339}
4340
4341
4342/**
4343 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4344 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4345 *
4346 * This function deinitialize per-interface P2P data.
4347 */
4348void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4349{
4350 if (wpa_s->driver && wpa_s->drv_priv)
4351 wpa_drv_probe_req_report(wpa_s, 0);
ec437d9e
JJ		 4352
4353 if (wpa_s->go_params) {
4354 /* Clear any stored provisioning info */
4355 p2p_clear_provisioning_info(
4356 wpa_s->global->p2p,
10531d21 4357 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 4358 }
4359
b22128ef
JM		 4360 os_free(wpa_s->go_params);
4361 wpa_s->go_params = NULL;
fb2ac53d 4362 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
b22128ef 4363 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 4364 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 4365 wpa_s->p2p_long_listen = 0;
4366 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3071e181 4367 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
b22128ef 4368 wpas_p2p_remove_pending_group_interface(wpa_s);
8567866d 4369 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
e1d1c8e2 4370 wpas_p2p_listen_work_done(wpa_s);
e05e1308
JM		 4371 if (wpa_s->p2p_send_action_work) {
4372 os_free(wpa_s->p2p_send_action_work->ctx);
4373 radio_work_done(wpa_s->p2p_send_action_work);
4374 wpa_s->p2p_send_action_work = NULL;
4375 }
4376 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
b22128ef 4377
db6ae69e
JM		 4378 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4379 wpa_s->p2p_oob_dev_pw = NULL;
4380
20beb96f
IP		 4381 os_free(wpa_s->p2p_group_common_freqs);
4382 wpa_s->p2p_group_common_freqs = NULL;
4383 wpa_s->p2p_group_common_freqs_num = 0;
4384
b22128ef
JM		 4385 /* TODO: remove group interface from the driver if this wpa_s instance
4386 * is on top of a P2P group interface */
4387}
4388
4389
4390/**
4391 * wpas_p2p_deinit_global - Deinitialize global P2P module
4392 * @global: Pointer to global data from wpa_supplicant_init()
4393 *
4394 * This function deinitializes the global (per device) P2P module.
4395 */
bd10d938 4396static void wpas_p2p_deinit_global(struct wpa_global *global)
b22128ef
JM		 4397{
4398 struct wpa_supplicant *wpa_s, *tmp;
b22128ef 4399
bf428a73 4400 wpa_s = global->ifaces;
ee285df4
EA		 4401
4402 wpas_p2p_service_flush(global->p2p_init_wpa_s);
bf428a73 4403
b22128ef 4404 /* Remove remaining P2P group interfaces */
b22128ef
JM		 4405 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4406 wpa_s = wpa_s->next;
4407 while (wpa_s) {
b22128ef
JM		 4408 tmp = global->ifaces;
4409 while (tmp &&
4410 (tmp == wpa_s ||
4411 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4412 tmp = tmp->next;
4413 }
4414 if (tmp == NULL)
4415 break;
103b8f4d
NS		 4416 /* Disconnect from the P2P group and deinit the interface */
4417 wpas_p2p_disconnect(tmp);
b22128ef
JM		 4418 }
4419
743ef799
JM		 4420 /*
4421 * Deinit GO data on any possibly remaining interface (if main
4422 * interface is used as GO).
4423 */
4424 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4425 if (wpa_s->ap_iface)
4426 wpas_p2p_group_deinit(wpa_s);
4427 }
4428
b22128ef
JM		 4429 p2p_deinit(global->p2p);
4430 global->p2p = NULL;
ab28911d 4431 global->p2p_init_wpa_s = NULL;
b22128ef
JM		 4432}
4433
4434
4435static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4436{
bb4028f1
AS		 4437 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4438 wpa_s->conf->p2p_no_group_iface)
d76cd41a 4439 return 0; /* separate interface disabled per configuration */
971e357f
JM		 4440 if (wpa_s->drv_flags &
4441 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4442 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
b22128ef
JM		 4443 return 1; /* P2P group requires a new interface in every case
4444 */
4445 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4446 return 0; /* driver does not support concurrent operations */
4447 if (wpa_s->global->ifaces->next)
4448 return 1; /* more that one interface already in use */
4449 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4450 return 1; /* this interface is already in use */
4451 return 0;
4452}
4453
4454
4455static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4456 const u8 *peer_addr,
4457 enum p2p_wps_method wps_method,
4458 int go_intent, const u8 *own_interface_addr,
23c84252 4459 unsigned int force_freq, int persistent_group,
04a3e69d 4460 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 4461{
acc247b2
JM		 4462 if (persistent_group && wpa_s->conf->persistent_reconnect)
4463 persistent_group = 2;
4464
4f219667
JM		 4465 /*
4466 * Increase GO config timeout if HT40 is used since it takes some time
4467 * to scan channels for coex purposes before the BSS can be started.
4468 */
4469 p2p_set_config_timeout(wpa_s->global->p2p,
4470 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4471
b22128ef
JM		 4472 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4473 go_intent, own_interface_addr, force_freq,
23c84252 4474 persistent_group, ssid ? ssid->ssid : NULL,
3bc462cb 4475 ssid ? ssid->ssid_len : 0,
db6ae69e
JM		 4476 wpa_s->p2p_pd_before_go_neg, pref_freq,
4477 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4478 0);
b22128ef
JM		 4479}
4480
4481
4482static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4483 const u8 *peer_addr,
4484 enum p2p_wps_method wps_method,
4485 int go_intent, const u8 *own_interface_addr,
23c84252 4486 unsigned int force_freq, int persistent_group,
04a3e69d 4487 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 4488{
acc247b2
JM		 4489 if (persistent_group && wpa_s->conf->persistent_reconnect)
4490 persistent_group = 2;
4491
b22128ef
JM		 4492 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4493 go_intent, own_interface_addr, force_freq,
23c84252 4494 persistent_group, ssid ? ssid->ssid : NULL,
db6ae69e
JM		 4495 ssid ? ssid->ssid_len : 0, pref_freq,
4496 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4497 0);
b22128ef
JM		 4498}
4499
4500
9b1ab931
JM		 4501static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4502{
4503 wpa_s->p2p_join_scan_count++;
4504 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4505 wpa_s->p2p_join_scan_count);
4506 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4507 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4508 " for join operationg - stop join attempt",
4509 MAC2STR(wpa_s->pending_join_iface_addr));
4510 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
0918c4bf
JM		 4511 if (wpa_s->p2p_auto_pd) {
4512 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 4513 wpa_msg_global(wpa_s, MSG_INFO,
4514 P2P_EVENT_PROV_DISC_FAILURE
4515 " p2p_dev_addr=" MACSTR " status=N/A",
4516 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 4517 return;
4518 }
92c4465b
JM		 4519 wpa_msg_global(wpa_s->parent, MSG_INFO,
4520 P2P_EVENT_GROUP_FORMATION_FAILURE);
2a95fac9 4521 wpas_notify_p2p_group_formation_failure(wpa_s, "");
9b1ab931
JM		 4522 }
4523}
4524
4525
4b156206
JM		 4526static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4527{
a0c90bb0
IP		 4528 int res;
4529 unsigned int num, i;
4530 struct wpa_used_freq_data *freqs;
4b156206 4531
0d08efa4
IP		 4532 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4533 /* Multiple channels are supported and not all are in use */
4b156206 4534 return 0;
0d08efa4 4535 }
4b156206 4536
a0c90bb0
IP		 4537 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4538 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 4539 if (!freqs)
4540 return 1;
86ae2e8a 4541
0d08efa4
IP		 4542 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4543 wpa_s->num_multichan_concurrent);
4b156206 4544
0d08efa4 4545 for (i = 0; i < num; i++) {
a0c90bb0 4546 if (freqs[i].freq == freq) {
0d08efa4
IP		 4547 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4548 freq);
4549 res = 0;
4550 goto exit_free;
4551 }
4b156206
JM		 4552 }
4553
a0c90bb0 4554 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
0d08efa4
IP		 4555 res = 1;
4556
4557exit_free:
4558 os_free(freqs);
4559 return res;
4b156206
JM		 4560}
4561
4562
b31be3a0
JM		 4563static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4564 const u8 *peer_dev_addr)
4565{
4566 struct wpa_bss *bss;
4567 int updated;
4568
4569 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4570 if (bss == NULL)
aa9bb764 4571 return -1;
b31be3a0
JM		 4572 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4573 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4574 "last scan");
4575 return 0;
4576 }
4577
acb69cec
JB		 4578 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4579 &bss->last_update);
b31be3a0
JM		 4580 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4581 "%ld.%06ld (%supdated in last scan)",
4582 bss->last_update.sec, bss->last_update.usec,
4583 updated ? "": "not ");
4584
4585 return updated;
4586}
4587
4588
ef922c4a
JM		 4589static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4590 struct wpa_scan_results *scan_res)
b22128ef 4591{
c48414af 4592 struct wpa_bss *bss = NULL;
f8d0131a 4593 int freq;
54960629 4594 u8 iface_addr[ETH_ALEN];
b22128ef 4595
ef922c4a 4596 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 4597
ef922c4a
JM		 4598 if (wpa_s->global->p2p_disabled)
4599 return;
b22128ef 4600
b31be3a0
JM		 4601 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4602 scan_res ? (int) scan_res->num : -1,
4603 wpa_s->p2p_auto_join ? "auto_" : "");
ef922c4a
JM		 4604
4605 if (scan_res)
4606 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 4607
0918c4bf
JM		 4608 if (wpa_s->p2p_auto_pd) {
4609 int join = wpas_p2p_peer_go(wpa_s,
4610 wpa_s->pending_join_dev_addr);
84286a22
SDU		 4611 if (join == 0 &&
4612 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4613 wpa_s->auto_pd_scan_retry++;
702621e6
JM		 4614 bss = wpa_bss_get_bssid_latest(
4615 wpa_s, wpa_s->pending_join_dev_addr);
84286a22
SDU		 4616 if (bss) {
4617 freq = bss->freq;
4618 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4619 "the peer " MACSTR " at %d MHz",
4620 wpa_s->auto_pd_scan_retry,
4621 MAC2STR(wpa_s->
4622 pending_join_dev_addr),
4623 freq);
c48414af 4624 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
84286a22
SDU		 4625 return;
4626 }
4627 }
4628
aa9bb764
JM		 4629 if (join < 0)
4630 join = 0;
84286a22 4631
0918c4bf
JM		 4632 wpa_s->p2p_auto_pd = 0;
4633 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4634 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4635 MAC2STR(wpa_s->pending_join_dev_addr), join);
4636 if (p2p_prov_disc_req(wpa_s->global->p2p,
369678ad 4637 wpa_s->pending_join_dev_addr, NULL,
0918c4bf 4638 wpa_s->pending_pd_config_methods, join,
67527166 4639 0, wpa_s->user_initiated_pd) < 0) {
0918c4bf 4640 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 4641 wpa_msg_global(wpa_s, MSG_INFO,
4642 P2P_EVENT_PROV_DISC_FAILURE
4643 " p2p_dev_addr=" MACSTR " status=N/A",
4644 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 4645 }
4646 return;
4647 }
4648
b31be3a0 4649 if (wpa_s->p2p_auto_join) {
aa9bb764
JM		 4650 int join = wpas_p2p_peer_go(wpa_s,
4651 wpa_s->pending_join_dev_addr);
4652 if (join < 0) {
b31be3a0
JM		 4653 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4654 "running a GO -> use GO Negotiation");
6b005121
JM		 4655 wpa_msg_global(wpa_s->parent, MSG_INFO,
4656 P2P_EVENT_FALLBACK_TO_GO_NEG
4657 "reason=peer-not-running-GO");
b31be3a0
JM		 4658 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4659 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4660 wpa_s->p2p_persistent_group, 0, 0, 0,
4661 wpa_s->p2p_go_intent,
23c84252 4662 wpa_s->p2p_connect_freq,
3bc462cb 4663 wpa_s->p2p_persistent_id,
e2308e4b 4664 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 4665 wpa_s->p2p_go_ht40,
4666 wpa_s->p2p_go_vht);
b31be3a0
JM		 4667 return;
4668 }
4669
aa9bb764
JM		 4670 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4671 "try to join the group", join ? "" :
4672 " in older scan");
6b005121
JM		 4673 if (!join) {
4674 wpa_msg_global(wpa_s->parent, MSG_INFO,
4675 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
aa9bb764 4676 wpa_s->p2p_fallback_to_go_neg = 1;
6b005121 4677 }
b31be3a0
JM		 4678 }
4679
f8d0131a
JM		 4680 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4681 wpa_s->pending_join_iface_addr);
54960629
AL		 4682 if (freq < 0 &&
4683 p2p_get_interface_addr(wpa_s->global->p2p,
4684 wpa_s->pending_join_dev_addr,
4685 iface_addr) == 0 &&
4e536751
CM		 4686 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4687 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
54960629
AL		 4688 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4689 "address for join from " MACSTR " to " MACSTR
4690 " based on newly discovered P2P peer entry",
4691 MAC2STR(wpa_s->pending_join_iface_addr),
4692 MAC2STR(iface_addr));
4693 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4694 ETH_ALEN);
4695
4696 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4697 wpa_s->pending_join_iface_addr);
4698 }
f8d0131a
JM		 4699 if (freq >= 0) {
4700 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4701 "from P2P peer table: %d MHz", freq);
4702 }
c48414af
JM		 4703 if (wpa_s->p2p_join_ssid_len) {
4704 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4705 MACSTR " and SSID %s",
4706 MAC2STR(wpa_s->pending_join_iface_addr),
4707 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4708 wpa_s->p2p_join_ssid_len));
4709 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4710 wpa_s->p2p_join_ssid,
4711 wpa_s->p2p_join_ssid_len);
4712 }
4713 if (!bss) {
4714 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4715 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4716 bss = wpa_bss_get_bssid_latest(wpa_s,
4717 wpa_s->pending_join_iface_addr);
4718 }
b22128ef 4719 if (bss) {
e6012e83
JM		 4720 u8 dev_addr[ETH_ALEN];
4721
f8d0131a
JM		 4722 freq = bss->freq;
4723 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
d2858883
JM		 4724 "from BSS table: %d MHz (SSID %s)", freq,
4725 wpa_ssid_txt(bss->ssid, bss->ssid_len));
e6012e83
JM		 4726 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4727 dev_addr) == 0 &&
4728 os_memcmp(wpa_s->pending_join_dev_addr,
4729 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4730 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4731 ETH_ALEN) != 0) {
4732 wpa_printf(MSG_DEBUG,
4733 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4734 MAC2STR(dev_addr),
4735 MAC2STR(wpa_s->pending_join_dev_addr));
4736 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4737 ETH_ALEN);
4738 }
f8d0131a
JM		 4739 }
4740 if (freq > 0) {
b22128ef
JM		 4741 u16 method;
4742
4b156206 4743 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
92c4465b
JM		 4744 wpa_msg_global(wpa_s->parent, MSG_INFO,
4745 P2P_EVENT_GROUP_FORMATION_FAILURE
4746 "reason=FREQ_CONFLICT");
2a95fac9
NC		 4747 wpas_notify_p2p_group_formation_failure(
4748 wpa_s, "FREQ_CONFLICT");
4b156206
JM		 4749 return;
4750 }
4751
b22128ef
JM		 4752 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4753 "prior to joining an existing group (GO " MACSTR
4754 " freq=%u MHz)",
f8d0131a 4755 MAC2STR(wpa_s->pending_join_dev_addr), freq);
b22128ef
JM		 4756 wpa_s->pending_pd_before_join = 1;
4757
ef922c4a 4758 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 4759 case WPS_PIN_DISPLAY:
4760 method = WPS_CONFIG_KEYPAD;
4761 break;
4762 case WPS_PIN_KEYPAD:
4763 method = WPS_CONFIG_DISPLAY;
4764 break;
4765 case WPS_PBC:
4766 method = WPS_CONFIG_PUSHBUTTON;
4767 break;
d494ca0b
AO		 4768 case WPS_P2PS:
4769 method = WPS_CONFIG_P2PS;
4770 break;
b22128ef
JM		 4771 default:
4772 method = 0;
4773 break;
4774 }
4775
ec437d9e
JJ		 4776 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4777 wpa_s->pending_join_dev_addr) ==
4778 method)) {
4779 /*
4780 * We have already performed provision discovery for
4781 * joining the group. Proceed directly to join
4782 * operation without duplicated provision discovery. */
e3a0706b 4783 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
ec437d9e
JJ		 4784 "with " MACSTR " already done - proceed to "
4785 "join",
4786 MAC2STR(wpa_s->pending_join_dev_addr));
4787 wpa_s->pending_pd_before_join = 0;
4788 goto start;
4789 }
4790
ef922c4a 4791 if (p2p_prov_disc_req(wpa_s->global->p2p,
369678ad
KV		 4792 wpa_s->pending_join_dev_addr,
4793 NULL, method, 1,
67527166 4794 freq, wpa_s->user_initiated_pd) < 0) {
b22128ef
JM		 4795 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4796 "Discovery Request before joining an "
4797 "existing group");
4798 wpa_s->pending_pd_before_join = 0;
4799 goto start;
4800 }
ef922c4a 4801 return;
b22128ef
JM		 4802 }
4803
9b1ab931
JM		 4804 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4805 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4806 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4807 wpas_p2p_check_join_scan_limit(wpa_s);
4808 return;
b22128ef
JM		 4809
4810start:
4811 /* Start join operation immediately */
23318bea 4812 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
ef922c4a
JM		 4813}
4814
4815
c48414af
JM		 4816static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4817 const u8 *ssid, size_t ssid_len)
ef922c4a 4818{
ef922c4a
JM		 4819 int ret;
4820 struct wpa_driver_scan_params params;
4821 struct wpabuf *wps_ie, *ies;
206e1f42 4822 size_t ielen;
84286a22 4823 int freqs[2] = { 0, 0 };
ef922c4a
JM		 4824
4825 os_memset(&params, 0, sizeof(params));
4826
4827 /* P2P Wildcard SSID */
4828 params.num_ssids = 1;
c48414af
JM		 4829 if (ssid && ssid_len) {
4830 params.ssids[0].ssid = ssid;
4831 params.ssids[0].ssid_len = ssid_len;
4832 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4833 wpa_s->p2p_join_ssid_len = ssid_len;
4834 } else {
4835 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4836 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4837 wpa_s->p2p_join_ssid_len = 0;
4838 }
ef922c4a
JM		 4839
4840 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 4841 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4842 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4843 NULL);
ef922c4a
JM		 4844 if (wps_ie == NULL) {
4845 wpas_p2p_scan_res_join(wpa_s, NULL);
4846 return;
4847 }
4848
206e1f42
JM		 4849 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4850 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
ef922c4a
JM		 4851 if (ies == NULL) {
4852 wpabuf_free(wps_ie);
4853 wpas_p2p_scan_res_join(wpa_s, NULL);
4854 return;
4855 }
4856 wpabuf_put_buf(ies, wps_ie);
4857 wpabuf_free(wps_ie);
4858
6d92fa6e 4859 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
ef922c4a 4860
47185fc7 4861 params.p2p_probe = 1;
ef922c4a
JM		 4862 params.extra_ies = wpabuf_head(ies);
4863 params.extra_ies_len = wpabuf_len(ies);
37b4198a
JJ		 4864
4865 if (!freq) {
4866 int oper_freq;
4867 /*
4868 * If freq is not provided, check the operating freq of the GO
4869 * and use a single channel scan on if possible.
4870 */
4871 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4872 wpa_s->pending_join_iface_addr);
4873 if (oper_freq > 0)
4874 freq = oper_freq;
4875 }
84286a22
SDU		 4876 if (freq > 0) {
4877 freqs[0] = freq;
4878 params.freqs = freqs;
4879 }
ef922c4a
JM		 4880
4881 /*
4882 * Run a scan to update BSS table and start Provision Discovery once
4883 * the new scan results become available.
4884 */
17fbb751 4885 ret = wpa_drv_scan(wpa_s, &params);
4342326f 4886 if (!ret) {
acb69cec 4887 os_get_reltime(&wpa_s->scan_trigger_time);
205e6474 4888 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
a5f40eff 4889 wpa_s->own_scan_requested = 1;
4342326f 4890 }
ef922c4a
JM		 4891
4892 wpabuf_free(ies);
4893
4894 if (ret) {
4895 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4896 "try again later");
4897 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4898 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
9b1ab931 4899 wpas_p2p_check_join_scan_limit(wpa_s);
ef922c4a
JM		 4900 }
4901}
4902
4903
84286a22
SDU		 4904static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4905{
4906 struct wpa_supplicant *wpa_s = eloop_ctx;
c48414af 4907 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
84286a22
SDU		 4908}
4909
4910
ef922c4a 4911static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0 4912 const u8 *dev_addr, enum p2p_wps_method wps_method,
23318bea
JM		 4913 int auto_join, int op_freq,
4914 const u8 *ssid, size_t ssid_len)
ef922c4a
JM		 4915{
4916 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
23318bea
JM		 4917 MACSTR " dev " MACSTR " op_freq=%d)%s",
4918 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
b31be3a0 4919 auto_join ? " (auto_join)" : "");
c48414af
JM		 4920 if (ssid && ssid_len) {
4921 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4922 wpa_ssid_txt(ssid, ssid_len));
4923 }
ef922c4a 4924
0918c4bf 4925 wpa_s->p2p_auto_pd = 0;
b31be3a0 4926 wpa_s->p2p_auto_join = !!auto_join;
ef922c4a
JM		 4927 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4928 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4929 wpa_s->pending_join_wps_method = wps_method;
4930
4931 /* Make sure we are not running find during connection establishment */
4932 wpas_p2p_stop_find(wpa_s);
4933
9b1ab931 4934 wpa_s->p2p_join_scan_count = 0;
23318bea 4935 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
ef922c4a 4936 return 0;
b22128ef
JM		 4937}
4938
4939
23318bea
JM		 4940static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4941 const u8 *ssid, size_t ssid_len)
b22128ef
JM		 4942{
4943 struct wpa_supplicant *group;
4944 struct p2p_go_neg_results res;
8e64f258 4945 struct wpa_bss *bss;
b22128ef
JM		 4946
4947 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4948 if (group == NULL)
4949 return -1;
3c5126a4 4950 if (group != wpa_s) {
b22128ef
JM		 4951 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4952 sizeof(group->p2p_pin));
3c5126a4 4953 group->p2p_wps_method = wpa_s->p2p_wps_method;
2b79164f
JM		 4954 } else {
4955 /*
4956 * Need to mark the current interface for p2p_group_formation
4957 * when a separate group interface is not used. This is needed
4958 * to allow p2p_cancel stop a pending p2p_connect-join.
4959 * wpas_p2p_init_group_interface() addresses this for the case
4960 * where a separate group interface is used.
4961 */
4962 wpa_s->global->p2p_group_formation = wpa_s;
3c5126a4 4963 }
b22128ef
JM		 4964
4965 group->p2p_in_provisioning = 1;
aa9bb764 4966 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
b22128ef
JM		 4967
4968 os_memset(&res, 0, sizeof(res));
23318bea 4969 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
b22128ef
JM		 4970 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4971 ETH_ALEN);
4972 res.wps_method = wpa_s->pending_join_wps_method;
23318bea
JM		 4973 if (freq && ssid && ssid_len) {
4974 res.freq = freq;
4975 res.ssid_len = ssid_len;
4976 os_memcpy(res.ssid, ssid, ssid_len);
4977 } else {
4978 bss = wpa_bss_get_bssid_latest(wpa_s,
4979 wpa_s->pending_join_iface_addr);
4980 if (bss) {
4981 res.freq = bss->freq;
4982 res.ssid_len = bss->ssid_len;
4983 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4984 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4985 bss->freq,
4986 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4987 }
8e64f258
JM		 4988 }
4989
e91829f9
JM		 4990 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4991 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4992 "starting client");
4993 wpa_drv_cancel_remain_on_channel(wpa_s);
4994 wpa_s->off_channel_freq = 0;
4995 wpa_s->roc_waiting_drv_freq = 0;
4996 }
b22128ef
JM		 4997 wpas_start_wps_enrollee(group, &res);
4998
3094d483
JM		 4999 /*
5000 * Allow a longer timeout for join-a-running-group than normal 15
5001 * second group formation timeout since the GO may not have authorized
5002 * our connection yet.
5003 */
5004 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
5005 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
5006 wpa_s, NULL);
5007
b22128ef
JM		 5008 return 0;
5009}
5010
5011
5de4b721 5012static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
370017d9
AK		 5013 int *force_freq, int *pref_freq, int go,
5014 unsigned int *pref_freq_list,
5015 unsigned int *num_pref_freq)
5de4b721 5016{
a0c90bb0
IP		 5017 struct wpa_used_freq_data *freqs;
5018 int res, best_freq, num_unused;
370017d9
AK		 5019 unsigned int freq_in_use = 0, num, i, max_pref_freq;
5020
5021 max_pref_freq = *num_pref_freq;
5022 *num_pref_freq = 0;
0d08efa4 5023
a0c90bb0
IP		 5024 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5025 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 5026 if (!freqs)
5027 return -1;
5028
a0c90bb0
IP		 5029 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5030 wpa_s->num_multichan_concurrent);
5031
5032 /*
5033 * It is possible that the total number of used frequencies is bigger
5034 * than the number of frequencies used for P2P, so get the system wide
5035 * number of unused frequencies.
5036 */
5037 num_unused = wpas_p2p_num_unused_channels(wpa_s);
5038
99d7c762 5039 wpa_printf(MSG_DEBUG,
a0c90bb0
IP		 5040 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
5041 freq, wpa_s->num_multichan_concurrent, num, num_unused);
0d08efa4 5042
5de4b721 5043 if (freq > 0) {
51e9f228
JM		 5044 int ret;
5045 if (go)
5046 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
5047 else
5048 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
5049 if (!ret) {
d7f1aa8f
AK		 5050 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5051 ieee80211_is_dfs(freq)) {
5052 /*
5053 * If freq is a DFS channel and DFS is offloaded
5054 * to the driver, allow P2P GO to use it.
5055 */
5056 wpa_printf(MSG_DEBUG,
5057 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5058 freq);
5059 } else {
5060 wpa_printf(MSG_DEBUG,
5061 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5062 freq);
5063 res = -3;
5064 goto exit_free;
5065 }
5de4b721
JM		 5066 }
5067
0d08efa4 5068 for (i = 0; i < num; i++) {
a0c90bb0 5069 if (freqs[i].freq == freq)
0d08efa4
IP		 5070 freq_in_use = 1;
5071 }
5072
a0c90bb0 5073 if (num_unused <= 0 && !freq_in_use) {
0d08efa4
IP		 5074 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5075 freq);
5076 res = -2;
5077 goto exit_free;
5de4b721
JM		 5078 }
5079 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5080 "requested channel (%u MHz)", freq);
5081 *force_freq = freq;
0d08efa4
IP		 5082 goto exit_ok;
5083 }
5084
a0c90bb0 5085 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
0d08efa4 5086
370017d9
AK		 5087 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
5088 enum wpa_driver_if_type iface_type;
5089
5090 if (go)
5091 iface_type = WPA_IF_P2P_GO;
5092 else
5093 iface_type = WPA_IF_P2P_CLIENT;
5094
5095 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
5096 best_freq, go);
5097
5098 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
5099 &max_pref_freq,
5100 pref_freq_list);
5101 if (!res && max_pref_freq > 0) {
5102 *num_pref_freq = max_pref_freq;
5103 i = 0;
5104 while (wpas_p2p_disallowed_freq(wpa_s->global,
5105 pref_freq_list[i]) &&
5106 i < *num_pref_freq) {
5107 wpa_printf(MSG_DEBUG,
5108 "P2P: preferred_freq_list[%d]=%d is disallowed",
5109 i, pref_freq_list[i]);
5110 i++;
5111 }
5112 if (i != *num_pref_freq) {
5113 best_freq = pref_freq_list[i];
5114 wpa_printf(MSG_DEBUG,
5115 "P2P: Using preferred_freq_list[%d]=%d",
5116 i, best_freq);
5117 } else {
5118 wpa_printf(MSG_DEBUG,
5119 "P2P: All driver preferred frequencies are disallowed for P2P use");
5120 *num_pref_freq = 0;
5121 }
5122 } else {
5123 wpa_printf(MSG_DEBUG,
5124 "P2P: No preferred frequency list available");
5125 }
5126 }
5127
a0c90bb0
IP		 5128 /* We have a candidate frequency to use */
5129 if (best_freq > 0) {
5130 if (*pref_freq == 0 && num_unused > 0) {
b17d89bd 5131 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
a0c90bb0
IP		 5132 best_freq);
5133 *pref_freq = best_freq;
b17d89bd
JM		 5134 } else {
5135 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
a0c90bb0
IP		 5136 best_freq);
5137 *force_freq = best_freq;
0d08efa4 5138 }
a0c90bb0
IP		 5139 } else if (num_unused > 0) {
5140 wpa_printf(MSG_DEBUG,
5141 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5142 *force_freq = 0;
5143 } else {
5144 wpa_printf(MSG_DEBUG,
5145 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5146 res = -2;
5147 goto exit_free;
0d08efa4
IP		 5148 }
5149
5150exit_ok:
5151 res = 0;
5152exit_free:
5153 os_free(freqs);
5154 return res;
5de4b721
JM		 5155}
5156
5157
b22128ef
JM		 5158/**
5159 * wpas_p2p_connect - Request P2P Group Formation to be started
5160 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5161 * @peer_addr: Address of the peer P2P Device
5162 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5163 * @persistent_group: Whether to create a persistent group
b31be3a0 5164 * @auto_join: Whether to select join vs. GO Negotiation automatically
b22128ef
JM		 5165 * @join: Whether to join an existing group (as a client) instead of starting
5166 * Group Owner negotiation; @peer_addr is BSSID in that case
5167 * @auth: Whether to only authorize the connection instead of doing that and
5168 * initiating Group Owner negotiation
5169 * @go_intent: GO Intent or -1 to use default
5170 * @freq: Frequency for the group or 0 for auto-selection
23c84252
JM		 5171 * @persistent_id: Persistent group credentials to use for forcing GO
5172 * parameters or -1 to generate new values (SSID/passphrase)
3bc462cb
JM		 5173 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5174 * interoperability workaround when initiating group formation
e2308e4b 5175 * @ht40: Start GO with 40 MHz channel width
20ea1ca4 5176 * @vht: Start GO with VHT support
d054a462
JM		 5177 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5178 * failure, -2 on failure due to channel not currently available,
5179 * -3 if forced channel is not supported
b22128ef
JM		 5180 */
5181int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5182 const char *pin, enum p2p_wps_method wps_method,
b31be3a0 5183 int persistent_group, int auto_join, int join, int auth,
e2308e4b 5184 int go_intent, int freq, int persistent_id, int pd,
20ea1ca4 5185 int ht40, int vht)
b22128ef 5186{
0d08efa4 5187 int force_freq = 0, pref_freq = 0;
5de4b721 5188 int ret = 0, res;
b22128ef 5189 enum wpa_driver_if_type iftype;
6cad95db 5190 const u8 *if_addr;
23c84252 5191 struct wpa_ssid *ssid = NULL;
370017d9 5192 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
b22128ef 5193
9526fd29
JM		 5194 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5195 return -1;
5196
23c84252
JM		 5197 if (persistent_id >= 0) {
5198 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5199 if (ssid == NULL || ssid->disabled != 2 ||
5200 ssid->mode != WPAS_MODE_P2P_GO)
5201 return -1;
5202 }
5203
01a57fe4
JM		 5204 os_free(wpa_s->global->add_psk);
5205 wpa_s->global->add_psk = NULL;
5206
95fb2db2 5207 wpa_s->global->p2p_fail_on_wps_complete = 0;
9a58e521 5208 wpa_s->global->pending_p2ps_group = 0;
8bb8e6ed 5209 wpa_s->global->pending_p2ps_group_freq = 0;
b9da88d6 5210 wpa_s->p2ps_method_config_any = 0;
95fb2db2 5211
b22128ef
JM		 5212 if (go_intent < 0)
5213 go_intent = wpa_s->conf->p2p_go_intent;
5214
5215 if (!auth)
5216 wpa_s->p2p_long_listen = 0;
5217
3c5126a4 5218 wpa_s->p2p_wps_method = wps_method;
b31be3a0 5219 wpa_s->p2p_persistent_group = !!persistent_group;
23c84252 5220 wpa_s->p2p_persistent_id = persistent_id;
b31be3a0
JM		 5221 wpa_s->p2p_go_intent = go_intent;
5222 wpa_s->p2p_connect_freq = freq;
aa9bb764 5223 wpa_s->p2p_fallback_to_go_neg = 0;
3bc462cb 5224 wpa_s->p2p_pd_before_go_neg = !!pd;
e2308e4b 5225 wpa_s->p2p_go_ht40 = !!ht40;
20ea1ca4 5226 wpa_s->p2p_go_vht = !!vht;
3c5126a4 5227
b22128ef
JM		 5228 if (pin)
5229 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5230 else if (wps_method == WPS_PIN_DISPLAY) {
5231 ret = wps_generate_pin();
1d399771
JM		 5232 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5233 "%08d", ret);
5234 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5235 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
b22128ef
JM		 5236 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5237 wpa_s->p2p_pin);
5238 } else
5239 wpa_s->p2p_pin[0] = '\0';
5240
b31be3a0 5241 if (join || auto_join) {
4147a2cc 5242 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
108def93
JM		 5243 if (auth) {
5244 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5245 "connect a running group from " MACSTR,
5246 MAC2STR(peer_addr));
5247 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5248 return ret;
5249 }
4147a2cc 5250 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
b22128ef 5251 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4147a2cc 5252 iface_addr) < 0) {
b22128ef 5253 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4147a2cc
JM		 5254 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5255 dev_addr);
5256 }
b31be3a0 5257 if (auto_join) {
acb69cec 5258 os_get_reltime(&wpa_s->p2p_auto_started);
b31be3a0
JM		 5259 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5260 "%ld.%06ld",
5261 wpa_s->p2p_auto_started.sec,
5262 wpa_s->p2p_auto_started.usec);
5263 }
67527166 5264 wpa_s->user_initiated_pd = 1;
b31be3a0 5265 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
23318bea 5266 auto_join, freq, NULL, 0) < 0)
b22128ef
JM		 5267 return -1;
5268 return ret;
5269 }
5270
370017d9 5271 size = P2P_MAX_PREF_CHANNELS;
51e9f228 5272 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
370017d9 5273 go_intent == 15, pref_freq_list, &size);
5de4b721
JM		 5274 if (res)
5275 return res;
1b665cbf
JM		 5276 wpas_p2p_set_own_freq_preference(wpa_s,
5277 force_freq ? force_freq : pref_freq);
b22128ef 5278
370017d9
AK		 5279 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5280
b22128ef
JM		 5281 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5282
6cad95db
JB		 5283 if (wpa_s->create_p2p_iface) {
5284 /* Prepare to add a new interface for the group */
5285 iftype = WPA_IF_P2P_GROUP;
5286 if (go_intent == 15)
5287 iftype = WPA_IF_P2P_GO;
5288 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5289 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5290 "interface for the group");
b22128ef 5291 return -1;
6cad95db 5292 }
b22128ef 5293
6cad95db 5294 if_addr = wpa_s->pending_interface_addr;
9f59fe8d 5295 } else {
6cad95db 5296 if_addr = wpa_s->own_addr;
9f59fe8d
JM		 5297 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5298 }
b22128ef
JM		 5299
5300 if (auth) {
5301 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
6cad95db 5302 go_intent, if_addr,
04a3e69d
JM		 5303 force_freq, persistent_group, ssid,
5304 pref_freq) < 0)
b22128ef
JM		 5305 return -1;
5306 return ret;
5307 }
6cad95db
JB		 5308
5309 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5310 go_intent, if_addr, force_freq,
04a3e69d 5311 persistent_group, ssid, pref_freq) < 0) {
6cad95db
JB		 5312 if (wpa_s->create_p2p_iface)
5313 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 5314 return -1;
5315 }
5316 return ret;
5317}
5318
5319
5320/**
5321 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5322 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5323 * @freq: Frequency of the channel in MHz
5324 * @duration: Duration of the stay on the channel in milliseconds
5325 *
5326 * This callback is called when the driver indicates that it has started the
5327 * requested remain-on-channel duration.
5328 */
5329void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5330 unsigned int freq, unsigned int duration)
5331{
9526fd29
JM		 5332 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5333 return;
f2dc06e2
JM		 5334 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)",
5335 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5336 wpa_s->roc_waiting_drv_freq, freq, duration);
5337 if (wpa_s->off_channel_freq &&
5338 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
b22128ef
JM		 5339 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5340 wpa_s->pending_listen_duration);
5341 wpa_s->pending_listen_freq = 0;
211d7ab3
JM		 5342 } else {
5343 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5344 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5345 freq, duration);
b22128ef
JM		 5346 }
5347}
5348
5349
49e1e9ca 5350int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
b22128ef
JM		 5351{
5352 /* Limit maximum Listen state time based on driver limitation. */
5353 if (timeout > wpa_s->max_remain_on_chan)
5354 timeout = wpa_s->max_remain_on_chan;
5355
5356 return p2p_listen(wpa_s->global->p2p, timeout);
5357}
5358
5359
5360/**
5361 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5362 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5363 * @freq: Frequency of the channel in MHz
5364 *
5365 * This callback is called when the driver indicates that a remain-on-channel
5366 * operation has been completed, i.e., the duration on the requested channel
5367 * has timed out.
5368 */
5369void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5370 unsigned int freq)
5371{
1cc3a29d 5372 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
11fb02be 5373 "(p2p_long_listen=%d ms pending_action_tx=%p)",
2f3101d8 5374 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
e1d1c8e2 5375 wpas_p2p_listen_work_done(wpa_s);
9526fd29
JM		 5376 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5377 return;
49e1e9ca
JJ		 5378 if (wpa_s->p2p_long_listen > 0)
5379 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
b22128ef
JM		 5380 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5381 return; /* P2P module started a new operation */
2f3101d8 5382 if (offchannel_pending_action_tx(wpa_s))
b22128ef 5383 return;
b22128ef
JM		 5384 if (wpa_s->p2p_long_listen > 0) {
5385 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
11fb02be 5386 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
0b5fb86a
SADR		 5387 } else {
5388 /*
5389 * When listen duration is over, stop listen & update p2p_state
5390 * to IDLE.
5391 */
5392 p2p_stop_listen(wpa_s->global->p2p);
b22128ef
JM		 5393 }
5394}
5395
5396
5397/**
5398 * wpas_p2p_group_remove - Remove a P2P group
5399 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5400 * @ifname: Network interface name of the group interface or "*" to remove all
5401 * groups
5402 * Returns: 0 on success, -1 on failure
5403 *
5404 * This function is used to remove a P2P group. This can be used to disconnect
5405 * from a group in which the local end is a P2P Client or to end a P2P Group in
5406 * case the local end is the Group Owner. If a virtual network interface was
5407 * created for this group, that interface will be removed. Otherwise, only the
5408 * configured P2P group network will be removed from the interface.
5409 */
5410int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5411{
5412 struct wpa_global *global = wpa_s->global;
f2b3acc9 5413 struct wpa_supplicant *calling_wpa_s = wpa_s;
b22128ef
JM		 5414
5415 if (os_strcmp(ifname, "*") == 0) {
5416 struct wpa_supplicant *prev;
5417 wpa_s = global->ifaces;
5418 while (wpa_s) {
5419 prev = wpa_s;
5420 wpa_s = wpa_s->next;
d99ca89d
IP		 5421 if (prev->p2p_group_interface !=
5422 NOT_P2P_GROUP_INTERFACE ||
5423 (prev->current_ssid &&
5424 prev->current_ssid->p2p_group))
f2b3acc9 5425 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
b22128ef
JM		 5426 }
5427 return 0;
5428 }
5429
5430 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5431 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5432 break;
5433 }
5434
f2b3acc9 5435 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
b22128ef
JM		 5436}
5437
5438
4abc0424
WJL		 5439static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5440{
5441 unsigned int r;
5442
8e84921e
AK		 5443 if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5444 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5445 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5446 int res;
5447
5448 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5449 &size, pref_freq_list);
5450 if (!res && size > 0) {
5451 i = 0;
5452 while (wpas_p2p_disallowed_freq(wpa_s->global,
5453 pref_freq_list[i]) &&
5454 i < size) {
5455 wpa_printf(MSG_DEBUG,
5456 "P2P: preferred_freq_list[%d]=%d is disallowed",
5457 i, pref_freq_list[i]);
5458 i++;
5459 }
5460 if (i != size) {
5461 freq = pref_freq_list[i];
5462 wpa_printf(MSG_DEBUG,
5463 "P2P: Using preferred_freq_list[%d]=%d",
5464 i, freq);
5465 } else {
5466 wpa_printf(MSG_DEBUG,
5467 "P2P: All driver preferred frequencies are disallowed for P2P use");
5468 }
5469 } else {
5470 wpa_printf(MSG_DEBUG,
5471 "P2P: No preferred frequency list available");
5472 }
5473 }
5474
4abc0424
WJL		 5475 if (freq == 2) {
5476 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5477 "band");
5478 if (wpa_s->best_24_freq > 0 &&
556b30da
JM		 5479 p2p_supported_freq_go(wpa_s->global->p2p,
5480 wpa_s->best_24_freq)) {
4abc0424
WJL		 5481 freq = wpa_s->best_24_freq;
5482 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5483 "channel: %d MHz", freq);
5484 } else {
df2508d7
JM		 5485 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5486 return -1;
4abc0424
WJL		 5487 freq = 2412 + (r % 3) * 25;
5488 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5489 "channel: %d MHz", freq);
5490 }
5491 }
5492
5493 if (freq == 5) {
5494 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5495 "band");
5496 if (wpa_s->best_5_freq > 0 &&
556b30da 5497 p2p_supported_freq_go(wpa_s->global->p2p,
4abc0424
WJL		 5498 wpa_s->best_5_freq)) {
5499 freq = wpa_s->best_5_freq;
5500 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5501 "channel: %d MHz", freq);
5502 } else {
df2508d7
JM		 5503 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5504 return -1;
4abc0424 5505 freq = 5180 + (r % 4) * 20;
556b30da 5506 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4abc0424
WJL		 5507 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5508 "5 GHz channel for P2P group");
5509 return -1;
5510 }
5511 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5512 "channel: %d MHz", freq);
5513 }
5514 }
5515
556b30da 5516 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
d7f1aa8f
AK		 5517 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5518 ieee80211_is_dfs(freq)) {
5519 /*
5520 * If freq is a DFS channel and DFS is offloaded to the
5521 * driver, allow P2P GO to use it.
5522 */
5523 wpa_printf(MSG_DEBUG, "P2P: "
5524 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5525 __func__, freq);
5526 return freq;
5527 }
4abc0424
WJL		 5528 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5529 "(%u MHz) is not supported for P2P uses",
5530 freq);
5531 return -1;
5532 }
5533
5534 return freq;
5535}
5536
5537
b1308121
IP		 5538static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5539 const struct p2p_channels *channels,
5540 int freq)
5541{
5542 if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5543 p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5544 freq_included(wpa_s, channels, freq))
5545 return 1;
5546 return 0;
5547}
5548
5549
5550static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5551 struct p2p_go_neg_results *params,
5552 const struct p2p_channels *channels)
28812a89
IP		 5553{
5554 unsigned int i, r;
5555
5556 /* first try some random selection of the social channels */
5e62cfdf 5557 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
b1308121 5558 return;
28812a89
IP		 5559
5560 for (i = 0; i < 3; i++) {
5561 params->freq = 2412 + ((r + i) % 3) * 25;
b1308121 5562 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
28812a89
IP		 5563 goto out;
5564 }
5565
b1308121 5566 /* try all other channels in operating class 81 */
28812a89
IP		 5567 for (i = 0; i < 11; i++) {
5568 params->freq = 2412 + i * 5;
b1308121
IP		 5569
5570 /* skip social channels; covered in the previous loop */
5571 if (params->freq == 2412 ||
5572 params->freq == 2437 ||
5573 params->freq == 2462)
5574 continue;
5575
5576 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
1595eb93
AM		 5577 goto out;
5578 }
5579
95d7b863
KV		 5580 /* try all channels in operating class 115 */
5581 for (i = 0; i < 4; i++) {
5582 params->freq = 5180 + i * 20;
5583 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5584 freq_included(wpa_s, channels, params->freq) &&
95d7b863
KV		 5585 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5586 goto out;
5587 }
5588
5589 /* try all channels in operating class 124 */
5590 for (i = 0; i < 4; i++) {
5591 params->freq = 5745 + i * 20;
5592 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5593 freq_included(wpa_s, channels, params->freq) &&
95d7b863
KV		 5594 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5595 goto out;
5596 }
5597
1595eb93
AM		 5598 /* try social channel class 180 channel 2 */
5599 params->freq = 58320 + 1 * 2160;
5600 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5601 freq_included(wpa_s, channels, params->freq) &&
1595eb93
AM		 5602 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5603 goto out;
5604
5605 /* try all channels in reg. class 180 */
5606 for (i = 0; i < 4; i++) {
5607 params->freq = 58320 + i * 2160;
5608 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5609 freq_included(wpa_s, channels, params->freq) &&
1595eb93 5610 p2p_supported_freq(wpa_s->global->p2p, params->freq))
28812a89
IP		 5611 goto out;
5612 }
5613
b1308121 5614 params->freq = 0;
95d7b863 5615 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
b1308121 5616 return;
28812a89
IP		 5617out:
5618 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5619 params->freq);
28812a89
IP		 5620}
5621
5622
b8349523
NKG		 5623static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5624 struct p2p_go_neg_results *params,
20ea1ca4 5625 int freq, int ht40, int vht,
54733624 5626 const struct p2p_channels *channels)
b22128ef 5627{
a0c90bb0 5628 struct wpa_used_freq_data *freqs;
b1308121 5629 unsigned int cand;
0d08efa4 5630 unsigned int num, i;
23dcb302 5631 int ignore_no_freqs = 0;
b22128ef
JM		 5632
5633 os_memset(params, 0, sizeof(*params));
5634 params->role_go = 1;
7aeac985 5635 params->ht40 = ht40;
20ea1ca4 5636 params->vht = vht;
e280110d 5637
b1308121
IP		 5638 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5639 sizeof(struct wpa_used_freq_data));
5640 if (!freqs)
5641 return -1;
5642
23dcb302
IP		 5643 num = get_shared_radio_freqs_data(wpa_s, freqs,
5644 wpa_s->num_multichan_concurrent);
5645
5646 if (wpa_s->current_ssid &&
5647 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
5648 wpa_s->wpa_state == WPA_COMPLETED) {
5649 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5650 __func__);
5651
5652 /*
5653 * If the frequency selection is done for an active P2P GO that
5654 * is not sharing a frequency, allow to select a new frequency
5655 * even if there are no unused frequencies as we are about to
5656 * move the P2P GO so its frequency can be re-used.
5657 */
5658 for (i = 0; i < num; i++) {
5659 if (freqs[i].freq == wpa_s->current_ssid->frequency &&
5660 freqs[i].flags == 0) {
5661 ignore_no_freqs = 1;
5662 break;
5663 }
5664 }
5665 }
b1308121
IP		 5666
5667 /* try using the forced freq */
7cfc4ac3 5668 if (freq) {
b1308121
IP		 5669 if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) {
5670 wpa_printf(MSG_DEBUG,
5671 "P2P: Forced GO freq %d MHz not accepted",
5672 freq);
5673 goto fail;
5674 }
5675
5676 for (i = 0; i < num; i++) {
5677 if (freqs[i].freq == freq) {
5678 wpa_printf(MSG_DEBUG,
5679 "P2P: forced freq (%d MHz) is also shared",
5680 freq);
5681 params->freq = freq;
5682 goto success;
5683 }
54733624 5684 }
b1308121 5685
23dcb302
IP		 5686 if (!ignore_no_freqs &&
5687 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
b1308121
IP		 5688 wpa_printf(MSG_DEBUG,
5689 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5690 freq);
5691 goto fail;
5692 }
5693
5694 wpa_printf(MSG_DEBUG,
5695 "P2P: force GO freq (%d MHz) on a free channel",
5696 freq);
b22128ef 5697 params->freq = freq;
b1308121
IP		 5698 goto success;
5699 }
5700
5701 /* consider using one of the shared frequencies */
5702 if (num) {
5703 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5704 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5705 wpa_printf(MSG_DEBUG,
5706 "P2P: Use shared freq (%d MHz) for GO",
5707 freq);
5708 params->freq = cand;
5709 goto success;
5710 }
5711
5712 /* try using one of the shared freqs */
5713 for (i = 0; i < num; i++) {
5714 if (wpas_p2p_supported_freq_go(wpa_s, channels,
5715 freqs[i].freq)) {
5716 wpa_printf(MSG_DEBUG,
5717 "P2P: Use shared freq (%d MHz) for GO",
5718 freq);
5719 params->freq = freqs[i].freq;
5720 goto success;
5721 }
5722 }
5723 }
5724
23dcb302
IP		 5725 if (!ignore_no_freqs &&
5726 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
b1308121
IP		 5727 wpa_printf(MSG_DEBUG,
5728 "P2P: Cannot force GO on any of the channels we are already using");
5729 goto fail;
5730 }
5731
5732 /* try using the setting from the configuration file */
5733 if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5734 wpa_s->conf->p2p_oper_channel >= 1 &&
5735 wpa_s->conf->p2p_oper_channel <= 11 &&
5736 wpas_p2p_supported_freq_go(
5737 wpa_s, channels,
5738 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 5739 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 5740 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5741 "frequency %d MHz", params->freq);
b1308121
IP		 5742 goto success;
5743 }
5744
5745 if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5746 wpa_s->conf->p2p_oper_reg_class == 116 ||
5747 wpa_s->conf->p2p_oper_reg_class == 117 ||
5748 wpa_s->conf->p2p_oper_reg_class == 124 ||
5749 wpa_s->conf->p2p_oper_reg_class == 125 ||
5750 wpa_s->conf->p2p_oper_reg_class == 126 ||
5751 wpa_s->conf->p2p_oper_reg_class == 127) &&
5752 wpas_p2p_supported_freq_go(wpa_s, channels,
5753 5000 +
5754 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 5755 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 5756 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5757 "frequency %d MHz", params->freq);
b1308121
IP		 5758 goto success;
5759 }
5760
5761 /* Try using best channels */
5762 if (wpa_s->conf->p2p_oper_channel == 0 &&
5763 wpa_s->best_overall_freq > 0 &&
5764 wpas_p2p_supported_freq_go(wpa_s, channels,
5765 wpa_s->best_overall_freq)) {
7cfc4ac3
AGS		 5766 params->freq = wpa_s->best_overall_freq;
5767 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5768 "channel %d MHz", params->freq);
b1308121
IP		 5769 goto success;
5770 }
5771
5772 if (wpa_s->conf->p2p_oper_channel == 0 &&
5773 wpa_s->best_24_freq > 0 &&
5774 wpas_p2p_supported_freq_go(wpa_s, channels,
5775 wpa_s->best_24_freq)) {
7cfc4ac3
AGS		 5776 params->freq = wpa_s->best_24_freq;
5777 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5778 "channel %d MHz", params->freq);
b1308121
IP		 5779 goto success;
5780 }
5781
5782 if (wpa_s->conf->p2p_oper_channel == 0 &&
5783 wpa_s->best_5_freq > 0 &&
5784 wpas_p2p_supported_freq_go(wpa_s, channels,
5785 wpa_s->best_5_freq)) {
7cfc4ac3
AGS		 5786 params->freq = wpa_s->best_5_freq;
5787 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5788 "channel %d MHz", params->freq);
b1308121
IP		 5789 goto success;
5790 }
5791
5792 /* try using preferred channels */
5793 cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
5794 if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5795 params->freq = cand;
c6ccf12d
SS		 5796 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5797 "channels", params->freq);
b1308121
IP		 5798 goto success;
5799 }
5800
5801 /* Try using one of the group common freqs */
5802 if (wpa_s->p2p_group_common_freqs) {
e280110d 5803 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
b1308121
IP		 5804 cand = wpa_s->p2p_group_common_freqs[i];
5805 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5806 params->freq = cand;
e280110d
IP		 5807 wpa_printf(MSG_DEBUG,
5808 "P2P: Use freq %d MHz common with the peer",
5809 params->freq);
b1308121 5810 goto success;
e280110d
IP		 5811 }
5812 }
7cfc4ac3
AGS		 5813 }
5814
b1308121
IP		 5815 /* no preference, select some channel */
5816 wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
a0c90bb0 5817
b1308121
IP		 5818 if (params->freq == 0) {
5819 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
5820 goto fail;
0d08efa4 5821 }
7d669cf7 5822
b1308121 5823success:
0d08efa4 5824 os_free(freqs);
b8349523 5825 return 0;
b1308121
IP		 5826fail:
5827 os_free(freqs);
5828 return -1;
b22128ef
JM		 5829}
5830
5831
5832static struct wpa_supplicant *
5833wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5834 int go)
5835{
5836 struct wpa_supplicant *group_wpa_s;
5837
ac06fb12
JM		 5838 if (!wpas_p2p_create_iface(wpa_s)) {
5839 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5840 "operations");
bbc6c729 5841 wpa_s->p2p_first_connection_timeout = 0;
b22128ef 5842 return wpa_s;
ac06fb12 5843 }
b22128ef
JM		 5844
5845 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
ac06fb12 5846 WPA_IF_P2P_CLIENT) < 0) {
92c4465b
JM		 5847 wpa_msg_global(wpa_s, MSG_ERROR,
5848 "P2P: Failed to add group interface");
b22128ef 5849 return NULL;
ac06fb12 5850 }
b22128ef
JM		 5851 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5852 if (group_wpa_s == NULL) {
92c4465b
JM		 5853 wpa_msg_global(wpa_s, MSG_ERROR,
5854 "P2P: Failed to initialize group interface");
b22128ef
JM		 5855 wpas_p2p_remove_pending_group_interface(wpa_s);
5856 return NULL;
5857 }
5858
ac06fb12
JM		 5859 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5860 group_wpa_s->ifname);
bbc6c729 5861 group_wpa_s->p2p_first_connection_timeout = 0;
b22128ef
JM		 5862 return group_wpa_s;
5863}
5864
5865
5866/**
5867 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5868 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5869 * @persistent_group: Whether to create a persistent group
5870 * @freq: Frequency for the group or 0 to indicate no hardcoding
20ea1ca4
EP		 5871 * @ht40: Start GO with 40 MHz channel width
5872 * @vht: Start GO with VHT support
b22128ef
JM		 5873 * Returns: 0 on success, -1 on failure
5874 *
5875 * This function creates a new P2P group with the local end as the Group Owner,
5876 * i.e., without using Group Owner Negotiation.
5877 */
5878int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
20ea1ca4 5879 int freq, int ht40, int vht)
b22128ef
JM		 5880{
5881 struct p2p_go_neg_results params;
7cfc4ac3 5882
9526fd29
JM		 5883 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5884 return -1;
5885
01a57fe4
JM		 5886 os_free(wpa_s->global->add_psk);
5887 wpa_s->global->add_psk = NULL;
5888
2d4f15d6
JJ		 5889 /* Make sure we are not running find during connection establishment */
5890 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
8713a2e6 5891 wpas_p2p_stop_find_oper(wpa_s);
2d4f15d6 5892
4abc0424
WJL		 5893 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5894 if (freq < 0)
4ae4650b 5895 return -1;
4ae4650b 5896
20ea1ca4 5897 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, NULL))
b8349523 5898 return -1;
f4329aa2 5899 if (params.freq &&
556b30da 5900 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
d7f1aa8f
AK		 5901 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5902 ieee80211_is_dfs(params.freq)) {
5903 /*
5904 * If freq is a DFS channel and DFS is offloaded to the
5905 * driver, allow P2P GO to use it.
5906 */
5907 wpa_printf(MSG_DEBUG,
5908 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
5909 __func__, params.freq);
5910 } else {
5911 wpa_printf(MSG_DEBUG,
5912 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
5913 params.freq);
5914 return -1;
5915 }
f4329aa2 5916 }
b22128ef
JM		 5917 p2p_go_params(wpa_s->global->p2p, &params);
5918 params.persistent_group = persistent_group;
5919
5920 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5921 if (wpa_s == NULL)
5922 return -1;
5923 wpas_start_wps_go(wpa_s, &params, 0);
5924
5925 return 0;
5926}
5927
5928
5929static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
41d5ce9e 5930 struct wpa_ssid *params, int addr_allocated,
dfaf11d6 5931 int freq, int force_scan)
b22128ef
JM		 5932{
5933 struct wpa_ssid *ssid;
5934
5935 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5936 if (wpa_s == NULL)
5937 return -1;
dfaf11d6
JM		 5938 if (force_scan)
5939 os_get_reltime(&wpa_s->scan_min_time);
5bf9a6c8 5940 wpa_s->p2p_last_4way_hs_fail = NULL;
b22128ef
JM		 5941
5942 wpa_supplicant_ap_deinit(wpa_s);
5943
5944 ssid = wpa_config_add_network(wpa_s->conf);
5945 if (ssid == NULL)
5946 return -1;
9f59fe8d 5947 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
b22128ef
JM		 5948 wpa_config_set_network_defaults(ssid);
5949 ssid->temporary = 1;
5950 ssid->proto = WPA_PROTO_RSN;
5951 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5952 ssid->group_cipher = WPA_CIPHER_CCMP;
5953 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5954 ssid->ssid = os_malloc(params->ssid_len);
5955 if (ssid->ssid == NULL) {
b22128ef
JM		 5956 wpa_config_remove_network(wpa_s->conf, ssid->id);
5957 return -1;
5958 }
5959 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5960 ssid->ssid_len = params->ssid_len;
5961 ssid->p2p_group = 1;
d1c8ac88 5962 ssid->export_keys = 1;
b22128ef
JM		 5963 if (params->psk_set) {
5964 os_memcpy(ssid->psk, params->psk, 32);
5965 ssid->psk_set = 1;
5966 }
5967 if (params->passphrase)
5968 ssid->passphrase = os_strdup(params->passphrase);
5969
b22128ef 5970 wpa_s->show_group_started = 1;
41d5ce9e
RR		 5971 wpa_s->p2p_in_invitation = 1;
5972 wpa_s->p2p_invite_go_freq = freq;
b22128ef 5973
91364b7f
SDU		 5974 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5975 NULL);
5976 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5977 wpas_p2p_group_formation_timeout,
5978 wpa_s->parent, NULL);
6fc48481
RR		 5979 wpa_supplicant_select_network(wpa_s, ssid);
5980
b22128ef
JM		 5981 return 0;
5982}
5983
5984
5985int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5986 struct wpa_ssid *ssid, int addr_allocated,
062a7c0d
MS		 5987 int force_freq, int neg_freq, int ht40,
5988 int vht, const struct p2p_channels *channels,
dfaf11d6 5989 int connection_timeout, int force_scan)
b22128ef
JM		 5990{
5991 struct p2p_go_neg_results params;
062a7c0d 5992 int go = 0, freq;
b22128ef
JM		 5993
5994 if (ssid->disabled != 2 || ssid->ssid == NULL)
5995 return -1;
5996
6c0da49f
JM		 5997 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5998 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5999 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
6000 "already running");
ccad05a9
KV		 6001 if (go == 0 &&
6002 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6003 wpa_s->parent, NULL)) {
6004 /*
6005 * This can happen if Invitation Response frame was lost
6006 * and the peer (GO of a persistent group) tries to
6007 * invite us again. Reschedule the timeout to avoid
6008 * terminating the wait for the connection too early
6009 * since we now know that the peer is still trying to
6010 * invite us instead of having already started the GO.
6011 */
6012 wpa_printf(MSG_DEBUG,
6013 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
6014 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6015 wpas_p2p_group_formation_timeout,
6016 wpa_s->parent, NULL);
6017 }
6c0da49f
JM		 6018 return 0;
6019 }
6020
01a57fe4
JM		 6021 os_free(wpa_s->global->add_psk);
6022 wpa_s->global->add_psk = NULL;
6023
9d39057c 6024 /* Make sure we are not running find during connection establishment */
8713a2e6 6025 wpas_p2p_stop_find_oper(wpa_s);
b22128ef 6026
aa9bb764
JM		 6027 wpa_s->p2p_fallback_to_go_neg = 0;
6028
431dd8bb
MK		 6029 if (ssid->mode == WPAS_MODE_P2P_GO) {
6030 if (force_freq > 0) {
6031 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
6032 if (freq < 0)
6033 return -1;
6034 } else {
6035 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
6036 if (freq < 0 ||
e280110d 6037 (freq > 0 && !freq_included(wpa_s, channels, freq)))
431dd8bb
MK		 6038 freq = 0;
6039 }
989e7846 6040 } else if (ssid->mode == WPAS_MODE_INFRA) {
431dd8bb 6041 freq = neg_freq;
e280110d 6042 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
989e7846
AS		 6043 struct os_reltime now;
6044 struct wpa_bss *bss =
6045 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
6046
6047 os_get_reltime(&now);
6048 if (bss &&
6049 !os_reltime_expired(&now, &bss->last_update, 5) &&
e280110d 6050 freq_included(wpa_s, channels, bss->freq))
989e7846
AS		 6051 freq = bss->freq;
6052 else
6053 freq = 0;
6054 }
4abc0424 6055
dfaf11d6
JM		 6056 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
6057 force_scan);
989e7846 6058 } else {
41d5ce9e 6059 return -1;
989e7846 6060 }
41d5ce9e 6061
20ea1ca4 6062 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, channels))
b8349523 6063 return -1;
b22128ef
JM		 6064
6065 params.role_go = 1;
30c371e8
MH		 6066 params.psk_set = ssid->psk_set;
6067 if (params.psk_set)
6068 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
bb4d4deb
MH		 6069 if (ssid->passphrase) {
6070 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6071 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6072 "persistent group");
6073 return -1;
6074 }
6075 os_strlcpy(params.passphrase, ssid->passphrase,
6076 sizeof(params.passphrase));
b22128ef 6077 }
b22128ef
JM		 6078 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6079 params.ssid_len = ssid->ssid_len;
6080 params.persistent_group = 1;
6081
6082 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6083 if (wpa_s == NULL)
6084 return -1;
6085
1170239e
IP		 6086 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6087
bbc6c729 6088 wpa_s->p2p_first_connection_timeout = connection_timeout;
b22128ef
JM		 6089 wpas_start_wps_go(wpa_s, &params, 0);
6090
6091 return 0;
6092}
6093
6094
6095static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6096 struct wpabuf *proberesp_ies)
6097{
6098 struct wpa_supplicant *wpa_s = ctx;
6099 if (wpa_s->ap_iface) {
6100 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
adc33680
JM		 6101 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6102 wpabuf_free(beacon_ies);
6103 wpabuf_free(proberesp_ies);
6104 return;
6105 }
b22128ef
JM		 6106 if (beacon_ies) {
6107 wpabuf_free(hapd->p2p_beacon_ie);
6108 hapd->p2p_beacon_ie = beacon_ies;
6109 }
6110 wpabuf_free(hapd->p2p_probe_resp_ie);
6111 hapd->p2p_probe_resp_ie = proberesp_ies;
6112 } else {
6113 wpabuf_free(beacon_ies);
6114 wpabuf_free(proberesp_ies);
6115 }
6116 wpa_supplicant_ap_update_beacon(wpa_s);
6117}
6118
6119
3071e181
JM		 6120static void wpas_p2p_idle_update(void *ctx, int idle)
6121{
6122 struct wpa_supplicant *wpa_s = ctx;
6123 if (!wpa_s->ap_iface)
6124 return;
6125 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
95fb2db2
JM		 6126 if (idle) {
6127 if (wpa_s->global->p2p_fail_on_wps_complete &&
6128 wpa_s->p2p_in_provisioning) {
6129 wpas_p2p_grpform_fail_after_wps(wpa_s);
6130 return;
6131 }
3071e181 6132 wpas_p2p_set_group_idle_timeout(wpa_s);
95fb2db2 6133 } else
3071e181
JM		 6134 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6135}
6136
6137
b22128ef 6138struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6f251b6b 6139 struct wpa_ssid *ssid)
b22128ef
JM		 6140{
6141 struct p2p_group *group;
6142 struct p2p_group_config *cfg;
6143
9526fd29
JM		 6144 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6145 return NULL;
3ac17eba 6146
b22128ef
JM		 6147 cfg = os_zalloc(sizeof(*cfg));
6148 if (cfg == NULL)
6149 return NULL;
6150
6f251b6b 6151 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
acc247b2 6152 cfg->persistent_group = 2;
6f251b6b 6153 else if (ssid->p2p_persistent_group)
acc247b2 6154 cfg->persistent_group = 1;
b22128ef 6155 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3f4ce13f
JM		 6156 if (wpa_s->max_stations &&
6157 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6158 cfg->max_clients = wpa_s->max_stations;
6159 else
6160 cfg->max_clients = wpa_s->conf->max_num_sta;
6f251b6b
JM		 6161 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6162 cfg->ssid_len = ssid->ssid_len;
ea43ad96 6163 cfg->freq = ssid->frequency;
b22128ef
JM		 6164 cfg->cb_ctx = wpa_s;
6165 cfg->ie_update = wpas_p2p_ie_update;
3071e181 6166 cfg->idle_update = wpas_p2p_idle_update;
b22128ef
JM		 6167
6168 group = p2p_group_init(wpa_s->global->p2p, cfg);
6169 if (group == NULL)
6170 os_free(cfg);
6f251b6b 6171 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
b22128ef
JM		 6172 p2p_group_notif_formation_done(group);
6173 wpa_s->p2p_group = group;
6174 return group;
6175}
6176
6177
6178void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6179 int registrar)
6180{
10531d21
JM		 6181 struct wpa_ssid *ssid = wpa_s->current_ssid;
6182
b22128ef
JM		 6183 if (!wpa_s->p2p_in_provisioning) {
6184 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6185 "provisioning not in progress");
6186 return;
6187 }
6188
10531d21
JM		 6189 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6190 u8 go_dev_addr[ETH_ALEN];
6191 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6192 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6193 ssid->ssid_len);
6194 /* Clear any stored provisioning info */
6195 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6196 }
ec437d9e 6197
b22128ef
JM		 6198 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6199 NULL);
41f85323 6200 wpa_s->p2p_go_group_formation_completed = 1;
361cdf34
JM		 6201 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6202 /*
6203 * Use a separate timeout for initial data connection to
6204 * complete to allow the group to be removed automatically if
6205 * something goes wrong in this step before the P2P group idle
6206 * timeout mechanism is taken into use.
6207 */
41f85323
JM		 6208 wpa_dbg(wpa_s, MSG_DEBUG,
6209 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6210 P2P_MAX_INITIAL_CONN_WAIT);
361cdf34
JM		 6211 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6212 wpas_p2p_group_formation_timeout,
ad853202 6213 wpa_s->parent, NULL);
41f85323
JM		 6214 } else if (ssid) {
6215 /*
6216 * Use a separate timeout for initial data connection to
6217 * complete to allow the group to be removed automatically if
6218 * the client does not complete data connection successfully.
6219 */
6220 wpa_dbg(wpa_s, MSG_DEBUG,
6221 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6222 P2P_MAX_INITIAL_CONN_WAIT_GO);
6223 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6224 wpas_p2p_group_formation_timeout,
6225 wpa_s->parent, NULL);
6226 /*
6227 * Complete group formation on first successful data connection
6228 */
6229 wpa_s->p2p_go_group_formation_completed = 0;
361cdf34 6230 }
b22128ef
JM		 6231 if (wpa_s->global->p2p)
6232 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
d95c5994 6233 wpas_group_formation_completed(wpa_s, 1, 0);
b22128ef
JM		 6234}
6235
6236
3734552f
JS		 6237void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6238 struct wps_event_fail *fail)
6239{
6240 if (!wpa_s->p2p_in_provisioning) {
6241 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6242 "provisioning not in progress");
6243 return;
6244 }
ec437d9e
JJ		 6245
6246 if (wpa_s->go_params) {
6247 p2p_clear_provisioning_info(
6248 wpa_s->global->p2p,
10531d21 6249 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 6250 }
6251
3734552f 6252 wpas_notify_p2p_wps_failed(wpa_s, fail);
95fb2db2
JM		 6253
6254 if (wpa_s == wpa_s->global->p2p_group_formation) {
6255 /*
6256 * Allow some time for the failed WPS negotiation exchange to
6257 * complete, but remove the group since group formation cannot
6258 * succeed after provisioning failure.
6259 */
6260 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6261 wpa_s->global->p2p_fail_on_wps_complete = 1;
6262 eloop_deplete_timeout(0, 50000,
6263 wpas_p2p_group_formation_timeout,
6264 wpa_s->parent, NULL);
6265 }
6266}
6267
6268
6269int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6270{
6271 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6272 !wpa_s->p2p_in_provisioning)
6273 return 0;
6274
6275 wpas_p2p_grpform_fail_after_wps(wpa_s);
6276
6277 return 1;
3734552f
JS		 6278}
6279
6280
b22128ef 6281int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
0918c4bf 6282 const char *config_method,
6d908514
KV		 6283 enum wpas_p2p_prov_disc_use use,
6284 struct p2ps_provision *p2ps_prov)
b22128ef
JM		 6285{
6286 u16 config_methods;
6287
9a58e521 6288 wpa_s->global->pending_p2ps_group = 0;
8bb8e6ed 6289 wpa_s->global->pending_p2ps_group_freq = 0;
aa9bb764 6290 wpa_s->p2p_fallback_to_go_neg = 0;
0918c4bf 6291 wpa_s->pending_pd_use = NORMAL_PD;
6d908514
KV		 6292 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6293 p2ps_prov->conncap = p2ps_group_capability(
ebd32943
IP		 6294 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role,
6295 &p2ps_prov->force_freq, &p2ps_prov->pref_freq);
6296
6d908514
KV		 6297 wpa_printf(MSG_DEBUG,
6298 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6299 __func__, p2ps_prov->conncap,
6300 p2ps_prov->adv_id, p2ps_prov->conncap,
6301 p2ps_prov->status, p2ps_prov->info);
6302
6303 config_methods = 0;
6304 } else if (os_strncmp(config_method, "display", 7) == 0)
b22128ef 6305 config_methods = WPS_CONFIG_DISPLAY;
8c5f7309 6306 else if (os_strncmp(config_method, "keypad", 6) == 0)
b22128ef 6307 config_methods = WPS_CONFIG_KEYPAD;
8c5f7309
JJ		 6308 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6309 os_strncmp(config_method, "pushbutton", 10) == 0)
b22128ef 6310 config_methods = WPS_CONFIG_PUSHBUTTON;
8c5f7309
JJ		 6311 else {
6312 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6d908514 6313 os_free(p2ps_prov);
b22128ef 6314 return -1;
8c5f7309 6315 }
b22128ef 6316
0918c4bf
JM		 6317 if (use == WPAS_P2P_PD_AUTO) {
6318 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6319 wpa_s->pending_pd_config_methods = config_methods;
6320 wpa_s->p2p_auto_pd = 1;
6321 wpa_s->p2p_auto_join = 0;
6322 wpa_s->pending_pd_before_join = 0;
84286a22 6323 wpa_s->auto_pd_scan_retry = 0;
0918c4bf
JM		 6324 wpas_p2p_stop_find(wpa_s);
6325 wpa_s->p2p_join_scan_count = 0;
acb69cec 6326 os_get_reltime(&wpa_s->p2p_auto_started);
84286a22
SDU		 6327 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6328 wpa_s->p2p_auto_started.sec,
6329 wpa_s->p2p_auto_started.usec);
0918c4bf
JM		 6330 wpas_p2p_join_scan(wpa_s, NULL);
6331 return 0;
6332 }
6333
6d908514
KV		 6334 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6335 os_free(p2ps_prov);
b22128ef 6336 return -1;
6d908514 6337 }
b22128ef 6338
6d908514 6339 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
0918c4bf 6340 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
67527166 6341 0, 1);
b22128ef
JM		 6342}
6343
6344
6345int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6346 char *end)
6347{
6348 return p2p_scan_result_text(ies, ies_len, buf, end);
6349}
6350
6351
1cc3a29d
JM		 6352static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6353{
2f3101d8 6354 if (!offchannel_pending_action_tx(wpa_s))
1cc3a29d
JM		 6355 return;
6356
2c51c0bd
AS		 6357 if (wpa_s->p2p_send_action_work)
6358 wpas_p2p_free_send_action_work(wpa_s);
2fa980f0 6359
1cc3a29d
JM		 6360 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6361 "operation request");
2f3101d8 6362 offchannel_clear_pending_action_tx(wpa_s);
1cc3a29d
JM		 6363}
6364
6365
b22128ef 6366int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
046ef4aa 6367 enum p2p_discovery_type type,
6d92fa6e 6368 unsigned int num_req_dev_types, const u8 *req_dev_types,
51775096 6369 const u8 *dev_id, unsigned int search_delay,
fa9f381f 6370 u8 seek_cnt, const char **seek_string, int freq)
b22128ef 6371{
1cc3a29d 6372 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef
JM		 6373 wpa_s->p2p_long_listen = 0;
6374
5bda43cd 6375 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
85a6cdb5 6376 wpa_s->p2p_in_provisioning)
9526fd29
JM		 6377 return -1;
6378
433cd2ce
JM		 6379 wpa_supplicant_cancel_sched_scan(wpa_s);
6380
046ef4aa 6381 return p2p_find(wpa_s->global->p2p, timeout, type,
37448ede 6382 num_req_dev_types, req_dev_types, dev_id,
fa9f381f 6383 search_delay, seek_cnt, seek_string, freq);
b22128ef
JM		 6384}
6385
6386
477b082c
SD		 6387static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6388 struct wpa_scan_results *scan_res)
6389{
6390 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6391
6392 if (wpa_s->p2p_scan_work) {
6393 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6394 wpa_s->p2p_scan_work = NULL;
6395 radio_work_done(work);
6396 }
6397
6398 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6399 return;
6400
6401 /*
6402 * Indicate that results have been processed so that the P2P module can
6403 * continue pending tasks.
6404 */
6405 p2p_scan_res_handled(wpa_s->global->p2p);
6406}
6407
6408
a6294141 6409static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
b22128ef 6410{
1cc3a29d 6411 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef 6412 wpa_s->p2p_long_listen = 0;
9d39057c 6413 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
ef922c4a 6414 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 6415
9526fd29
JM		 6416 if (wpa_s->global->p2p)
6417 p2p_stop_find(wpa_s->global->p2p);
477b082c
SD		 6418
6419 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6420 wpa_printf(MSG_DEBUG,
6421 "P2P: Do not consider the scan results after stop_find");
6422 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6423 }
8713a2e6
JM		 6424}
6425
6426
6427void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6428{
a6294141 6429 wpas_p2p_stop_find_oper(wpa_s);
93eca615
KV		 6430 if (!wpa_s->global->pending_group_iface_for_p2ps)
6431 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 6432}
6433
6434
6435static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6436{
6437 struct wpa_supplicant *wpa_s = eloop_ctx;
6438 wpa_s->p2p_long_listen = 0;
6439}
6440
6441
6442int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6443{
6444 int res;
6445
9526fd29
JM		 6446 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6447 return -1;
6448
433cd2ce 6449 wpa_supplicant_cancel_sched_scan(wpa_s);
1cc3a29d
JM		 6450 wpas_p2p_clear_pending_action_tx(wpa_s);
6451
b22128ef
JM		 6452 if (timeout == 0) {
6453 /*
6454 * This is a request for unlimited Listen state. However, at
6455 * least for now, this is mapped to a Listen state for one
6456 * hour.
6457 */
6458 timeout = 3600;
6459 }
6460 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6461 wpa_s->p2p_long_listen = 0;
6462
2bb747e2
JM		 6463 /*
6464 * Stop previous find/listen operation to avoid trying to request a new
6465 * remain-on-channel operation while the driver is still running the
6466 * previous one.
6467 */
6468 if (wpa_s->global->p2p)
6469 p2p_stop_find(wpa_s->global->p2p);
6470
b22128ef
JM		 6471 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6472 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
11fb02be 6473 wpa_s->p2p_long_listen = timeout * 1000;
b22128ef
JM		 6474 eloop_register_timeout(timeout, 0,
6475 wpas_p2p_long_listen_timeout,
6476 wpa_s, NULL);
6477 }
6478
6479 return res;
6480}
6481
6482
4c08c0bd 6483int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 6484 u8 *buf, size_t len, int p2p_group)
6485{
4c08c0bd
JM		 6486 struct wpabuf *p2p_ie;
6487 int ret;
6488
b22128ef
JM		 6489 if (wpa_s->global->p2p_disabled)
6490 return -1;
d63f1419
SD		 6491 /*
6492 * Advertize mandatory cross connection capability even on
6493 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6494 */
6495 if (wpa_s->conf->p2p_disabled && p2p_group)
1c2aa04c 6496 return -1;
b22128ef
JM		 6497 if (wpa_s->global->p2p == NULL)
6498 return -1;
e1f1509b
JM		 6499 if (bss == NULL)
6500 return -1;
b22128ef 6501
4c08c0bd
JM		 6502 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6503 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6504 p2p_group, p2p_ie);
6505 wpabuf_free(p2p_ie);
6506
6507 return ret;
b22128ef
JM		 6508}
6509
6510
6511int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
04a85e44 6512 const u8 *dst, const u8 *bssid,
734ddf61
MS		 6513 const u8 *ie, size_t ie_len,
6514 unsigned int rx_freq, int ssi_signal)
b22128ef
JM		 6515{
6516 if (wpa_s->global->p2p_disabled)
6517 return 0;
6518 if (wpa_s->global->p2p == NULL)
6519 return 0;
6520
2d43d37f 6521 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
734ddf61 6522 ie, ie_len, rx_freq)) {
2d43d37f
JB		 6523 case P2P_PREQ_NOT_P2P:
6524 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6525 ssi_signal);
6526 /* fall through */
6527 case P2P_PREQ_MALFORMED:
6528 case P2P_PREQ_NOT_LISTEN:
6529 case P2P_PREQ_NOT_PROCESSED:
6530 default: /* make gcc happy */
6531 return 0;
6532 case P2P_PREQ_PROCESSED:
6533 return 1;
6534 }
b22128ef
JM		 6535}
6536
6537
6538void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6539 const u8 *sa, const u8 *bssid,
6540 u8 category, const u8 *data, size_t len, int freq)
6541{
6542 if (wpa_s->global->p2p_disabled)
6543 return;
6544 if (wpa_s->global->p2p == NULL)
6545 return;
6546
6547 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6548 freq);
6549}
6550
6551
6552void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6553{
6554 if (wpa_s->global->p2p_disabled)
6555 return;
6556 if (wpa_s->global->p2p == NULL)
6557 return;
6558
6d92fa6e 6559 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
b22128ef
JM		 6560}
6561
6562
bd10d938 6563static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
b22128ef
JM		 6564{
6565 p2p_group_deinit(wpa_s->p2p_group);
6566 wpa_s->p2p_group = NULL;
a7fd39bb
JD		 6567
6568 wpa_s->ap_configured_cb = NULL;
6569 wpa_s->ap_configured_cb_ctx = NULL;
6570 wpa_s->ap_configured_cb_data = NULL;
6571 wpa_s->connect_without_scan = NULL;
b22128ef
JM		 6572}
6573
6574
6575int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6576{
6577 wpa_s->p2p_long_listen = 0;
6578
9526fd29
JM		 6579 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6580 return -1;
6581
b22128ef
JM		 6582 return p2p_reject(wpa_s->global->p2p, addr);
6583}
6584
6585
6586/* Invite to reinvoke a persistent group */
6587int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4d32c0c4 6588 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
20ea1ca4 6589 int ht40, int vht, int pref_freq)
b22128ef
JM		 6590{
6591 enum p2p_invite_role role;
0d08efa4
IP		 6592 u8 *bssid = NULL;
6593 int force_freq = 0;
5de4b721 6594 int res;
d0f61a4b 6595 int no_pref_freq_given = pref_freq == 0;
370017d9 6596 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
b22128ef 6597
dbca75f8 6598 wpa_s->global->p2p_invite_group = NULL;
77e4e853
JM		 6599 if (peer_addr)
6600 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6601 else
6602 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6603
4d32c0c4
JM		 6604 wpa_s->p2p_persistent_go_freq = freq;
6605 wpa_s->p2p_go_ht40 = !!ht40;
b22128ef
JM		 6606 if (ssid->mode == WPAS_MODE_P2P_GO) {
6607 role = P2P_INVITE_ROLE_GO;
6608 if (peer_addr == NULL) {
6609 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6610 "address in invitation command");
6611 return -1;
6612 }
6613 if (wpas_p2p_create_iface(wpa_s)) {
6614 if (wpas_p2p_add_group_interface(wpa_s,
6615 WPA_IF_P2P_GO) < 0) {
6616 wpa_printf(MSG_ERROR, "P2P: Failed to "
6617 "allocate a new interface for the "
6618 "group");
6619 return -1;
6620 }
6621 bssid = wpa_s->pending_interface_addr;
6622 } else
6623 bssid = wpa_s->own_addr;
6624 } else {
6625 role = P2P_INVITE_ROLE_CLIENT;
6626 peer_addr = ssid->bssid;
6627 }
6628 wpa_s->pending_invite_ssid_id = ssid->id;
6629
370017d9 6630 size = P2P_MAX_PREF_CHANNELS;
51e9f228 6631 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
370017d9
AK		 6632 role == P2P_INVITE_ROLE_GO,
6633 pref_freq_list, &size);
5de4b721
JM		 6634 if (res)
6635 return res;
fbcddaed 6636 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
79879f4a 6637
9526fd29
JM		 6638 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6639 return -1;
6640
d0f61a4b
JM		 6641 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6642 no_pref_freq_given && pref_freq > 0 &&
6643 wpa_s->num_multichan_concurrent > 1 &&
6644 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6645 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6646 pref_freq);
6647 pref_freq = 0;
6648 }
6649
b72b2ad3
IP		 6650 /*
6651 * Stop any find/listen operations before invitation and possibly
6652 * connection establishment.
6653 */
6654 wpas_p2p_stop_find_oper(wpa_s);
6655
b22128ef 6656 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a 6657 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
8e9f53c3 6658 1, pref_freq, -1);
b22128ef
JM		 6659}
6660
6661
6662/* Invite to join an active group */
6663int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6664 const u8 *peer_addr, const u8 *go_dev_addr)
6665{
6666 struct wpa_global *global = wpa_s->global;
6667 enum p2p_invite_role role;
0d08efa4 6668 u8 *bssid = NULL;
b22128ef 6669 struct wpa_ssid *ssid;
c427ac92 6670 int persistent;
73b54d63 6671 int freq = 0, force_freq = 0, pref_freq = 0;
5de4b721 6672 int res;
370017d9 6673 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
b22128ef 6674
4d32c0c4
JM		 6675 wpa_s->p2p_persistent_go_freq = 0;
6676 wpa_s->p2p_go_ht40 = 0;
20ea1ca4 6677 wpa_s->p2p_go_vht = 0;
4d32c0c4 6678
b22128ef
JM		 6679 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6680 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6681 break;
6682 }
6683 if (wpa_s == NULL) {
6684 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6685 return -1;
6686 }
6687
6688 ssid = wpa_s->current_ssid;
6689 if (ssid == NULL) {
6690 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6691 "invitation");
6692 return -1;
6693 }
6694
dbca75f8 6695 wpa_s->global->p2p_invite_group = wpa_s;
c427ac92
JM		 6696 persistent = ssid->p2p_persistent_group &&
6697 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6698 ssid->ssid, ssid->ssid_len);
6699
b22128ef
JM		 6700 if (ssid->mode == WPAS_MODE_P2P_GO) {
6701 role = P2P_INVITE_ROLE_ACTIVE_GO;
6702 bssid = wpa_s->own_addr;
6703 if (go_dev_addr == NULL)
d7e70476 6704 go_dev_addr = wpa_s->global->p2p_dev_addr;
73b54d63 6705 freq = ssid->frequency;
b22128ef
JM		 6706 } else {
6707 role = P2P_INVITE_ROLE_CLIENT;
6708 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6709 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6710 "invite to current group");
6711 return -1;
6712 }
6713 bssid = wpa_s->bssid;
6714 if (go_dev_addr == NULL &&
6715 !is_zero_ether_addr(wpa_s->go_dev_addr))
6716 go_dev_addr = wpa_s->go_dev_addr;
73b54d63
JM		 6717 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6718 (int) wpa_s->assoc_freq;
b22128ef 6719 }
bb79dc72 6720 wpa_s->parent->pending_invite_ssid_id = -1;
b22128ef 6721
9526fd29
JM		 6722 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6723 return -1;
6724
370017d9 6725 size = P2P_MAX_PREF_CHANNELS;
51e9f228 6726 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
370017d9
AK		 6727 role == P2P_INVITE_ROLE_ACTIVE_GO,
6728 pref_freq_list, &size);
5de4b721
JM		 6729 if (res)
6730 return res;
0d08efa4 6731 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
79879f4a 6732
b22128ef 6733 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a 6734 ssid->ssid, ssid->ssid_len, force_freq,
8e9f53c3 6735 go_dev_addr, persistent, pref_freq, -1);
b22128ef
JM		 6736}
6737
6738
6739void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6740{
6741 struct wpa_ssid *ssid = wpa_s->current_ssid;
b22128ef 6742 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 6743 int network_id = -1;
b22128ef 6744 int persistent;
b49d6ccb 6745 int freq;
25ef8529
JM		 6746 u8 ip[3 * 4];
6747 char ip_addr[100];
b22128ef 6748
73ccd083
JM		 6749 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6750 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6751 wpa_s->parent, NULL);
6752 }
361cdf34 6753
b22128ef 6754 if (!wpa_s->show_group_started || !ssid)
1b5d4714 6755 return;
b22128ef
JM		 6756
6757 wpa_s->show_group_started = 0;
6758
b22128ef
JM		 6759 os_memset(go_dev_addr, 0, ETH_ALEN);
6760 if (ssid->bssid_set)
6761 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6762 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6763 ssid->ssid_len);
6764 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6765
a0a9f3b0
JM		 6766 if (wpa_s->global->p2p_group_formation == wpa_s)
6767 wpa_s->global->p2p_group_formation = NULL;
6768
b49d6ccb
JJ		 6769 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6770 (int) wpa_s->assoc_freq;
25ef8529
JM		 6771
6772 ip_addr[0] = '\0';
6773 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
1d399771
JM		 6774 int res;
6775
6776 res = os_snprintf(ip_addr, sizeof(ip_addr),
6777 " ip_addr=%u.%u.%u.%u "
6778 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6779 ip[0], ip[1], ip[2], ip[3],
6780 ip[4], ip[5], ip[6], ip[7],
6781 ip[8], ip[9], ip[10], ip[11]);
6782 if (os_snprintf_error(sizeof(ip_addr), res))
6783 ip_addr[0] = '\0';
25ef8529
JM		 6784 }
6785
f8723e1e
JM		 6786 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6787 ssid->passphrase == NULL && ssid->psk_set ?
6788 ssid->psk : NULL,
6789 ssid->passphrase, go_dev_addr, persistent,
6790 ip_addr);
b22128ef
JM		 6791
6792 if (persistent)
4b6baa2f
JMB		 6793 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6794 ssid, go_dev_addr);
6795 if (network_id < 0)
6796 network_id = ssid->id;
6797 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
b22128ef
JM		 6798}
6799
6800
6801int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6802 u32 interval1, u32 duration2, u32 interval2)
6803{
c64e3a08
JM		 6804 int ret;
6805
9526fd29
JM		 6806 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6807 return -1;
3ac17eba 6808
b22128ef
JM		 6809 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6810 wpa_s->current_ssid == NULL ||
6811 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6812 return -1;
6813
c64e3a08
JM		 6814 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6815 wpa_s->own_addr, wpa_s->assoc_freq,
6816 duration1, interval1, duration2, interval2);
6817 if (ret == 0)
6818 wpa_s->waiting_presence_resp = 1;
6819
6820 return ret;
b22128ef
JM		 6821}
6822
6823
6824int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6825 unsigned int interval)
6826{
9526fd29
JM		 6827 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6828 return -1;
6829
b22128ef
JM		 6830 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6831}
6832
6833
c8106615
JM		 6834static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6835{
5fbddfdc
JM		 6836 if (wpa_s->current_ssid == NULL) {
6837 /*
c7deed74 6838 * current_ssid can be cleared when P2P client interface gets
5fbddfdc
JM		 6839 * disconnected, so assume this interface was used as P2P
6840 * client.
6841 */
6842 return 1;
6843 }
6844 return wpa_s->current_ssid->p2p_group &&
c8106615
JM		 6845 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6846}
6847
6848
3071e181
JM		 6849static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6850{
6851 struct wpa_supplicant *wpa_s = eloop_ctx;
6852
c8106615 6853 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
3071e181
JM		 6854 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6855 "disabled");
6856 return;
6857 }
6858
6859 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6860 "group");
8dba4aef 6861 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
3071e181
JM		 6862}
6863
6864
6865static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6866{
5f482d55 6867 int timeout;
c8106615 6868
dddc7045
JM		 6869 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6870 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6871
c8106615 6872 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3071e181
JM		 6873 return;
6874
c8106615
JM		 6875 timeout = wpa_s->conf->p2p_group_idle;
6876 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6877 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6878 timeout = P2P_MAX_CLIENT_IDLE;
6879
6880 if (timeout == 0)
3071e181
JM		 6881 return;
6882
5f482d55
JM		 6883 if (timeout < 0) {
6884 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6885 timeout = 0; /* special client mode no-timeout */
6886 else
6887 return;
6888 }
6889
8c472816
JM		 6890 if (wpa_s->p2p_in_provisioning) {
6891 /*
6892 * Use the normal group formation timeout during the
6893 * provisioning phase to avoid terminating this process too
6894 * early due to group idle timeout.
6895 */
6896 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6897 "during provisioning");
6898 return;
6899 }
6900
361cdf34
JM		 6901 if (wpa_s->show_group_started) {
6902 /*
6903 * Use the normal group formation timeout between the end of
6904 * the provisioning phase and completion of 4-way handshake to
6905 * avoid terminating this process too early due to group idle
6906 * timeout.
6907 */
6908 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6909 "while waiting for initial 4-way handshake to "
6910 "complete");
6911 return;
6912 }
6913
3071e181 6914 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
c8106615
JM		 6915 timeout);
6916 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6917 wpa_s, NULL);
3071e181
JM		 6918}
6919
6920
0aadd568
JM		 6921/* Returns 1 if the interface was removed */
6922int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6923 u16 reason_code, const u8 *ie, size_t ie_len,
6924 int locally_generated)
b22128ef 6925{
9526fd29 6926 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
0aadd568 6927 return 0;
b22128ef 6928
3fc14102
JM		 6929 if (!locally_generated)
6930 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6931 ie_len);
6932
6933 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6934 wpa_s->current_ssid &&
6935 wpa_s->current_ssid->p2p_group &&
6936 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6937 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6938 "session is ending");
0aadd568
JM		 6939 if (wpas_p2p_group_delete(wpa_s,
6940 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6941 > 0)
6942 return 1;
3fc14102 6943 }
0aadd568
JM		 6944
6945 return 0;
b22128ef
JM		 6946}
6947
6948
6949void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3fc14102
JM		 6950 u16 reason_code, const u8 *ie, size_t ie_len,
6951 int locally_generated)
b22128ef 6952{
9526fd29 6953 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 6954 return;
6955
3fc14102
JM		 6956 if (!locally_generated)
6957 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6958 ie_len);
b22128ef
JM		 6959}
6960
6961
6962void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6963{
6964 struct p2p_data *p2p = wpa_s->global->p2p;
6965
6966 if (p2p == NULL)
6967 return;
6968
4c010834
KL		 6969 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6970 return;
6971
b22128ef
JM		 6972 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6973 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6974
2f646b6e
JB		 6975 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6976 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
b22128ef 6977
b6e01800
JM		 6978 if (wpa_s->wps &&
6979 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6980 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6981
6982 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6983 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6984
6985 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6986 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6987 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6988 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6989 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6990 }
6991
2f646b6e
JB		 6992 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6993 p2p_set_sec_dev_types(p2p,
6994 (void *) wpa_s->conf->sec_device_type,
6995 wpa_s->conf->num_sec_device_types);
b22128ef 6996
f95cac27
JMB		 6997 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6998 int i;
6999 p2p_remove_wps_vendor_extensions(p2p);
7000 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
7001 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
7002 continue;
7003 p2p_add_wps_vendor_extension(
7004 p2p, wpa_s->conf->wps_vendor_ext[i]);
7005 }
7006 }
7007
b22128ef
JM		 7008 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
7009 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
7010 char country[3];
7011 country[0] = wpa_s->conf->country[0];
7012 country[1] = wpa_s->conf->country[1];
7013 country[2] = 0x04;
7014 p2p_set_country(p2p, country);
7015 }
7016
7017 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
7018 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
7019 wpa_s->conf->p2p_ssid_postfix ?
7020 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
7021 0);
7022 }
0f66abd2
SS		 7023
7024 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
7025 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
2463ba70
JS		 7026
7027 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
7028 u8 reg_class, channel;
7029 int ret;
7030 unsigned int r;
e3bd6e9d
IP		 7031 u8 channel_forced;
7032
2463ba70
JS		 7033 if (wpa_s->conf->p2p_listen_reg_class &&
7034 wpa_s->conf->p2p_listen_channel) {
7035 reg_class = wpa_s->conf->p2p_listen_reg_class;
7036 channel = wpa_s->conf->p2p_listen_channel;
e3bd6e9d 7037 channel_forced = 1;
2463ba70
JS		 7038 } else {
7039 reg_class = 81;
7040 /*
7041 * Pick one of the social channels randomly as the
7042 * listen channel.
7043 */
df2508d7
JM		 7044 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7045 channel = 1;
7046 else
7047 channel = 1 + (r % 3) * 5;
e3bd6e9d 7048 channel_forced = 0;
2463ba70 7049 }
e3bd6e9d
IP		 7050 ret = p2p_set_listen_channel(p2p, reg_class, channel,
7051 channel_forced);
2463ba70
JS		 7052 if (ret)
7053 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
7054 "failed: %d", ret);
7055 }
7056 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
7057 u8 op_reg_class, op_channel, cfg_op_channel;
7058 int ret = 0;
7059 unsigned int r;
7060 if (wpa_s->conf->p2p_oper_reg_class &&
7061 wpa_s->conf->p2p_oper_channel) {
7062 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7063 op_channel = wpa_s->conf->p2p_oper_channel;
7064 cfg_op_channel = 1;
7065 } else {
7066 op_reg_class = 81;
7067 /*
7068 * Use random operation channel from (1, 6, 11)
7069 *if no other preference is indicated.
7070 */
df2508d7
JM		 7071 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7072 op_channel = 1;
7073 else
7074 op_channel = 1 + (r % 3) * 5;
2463ba70
JS		 7075 cfg_op_channel = 0;
7076 }
7077 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7078 cfg_op_channel);
7079 if (ret)
7080 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7081 "failed: %d", ret);
7082 }
21d996f7
JM		 7083
7084 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7085 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7086 wpa_s->conf->p2p_pref_chan) < 0) {
7087 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7088 "update failed");
7089 }
556b30da
JM		 7090
7091 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7092 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7093 "update failed");
7094 }
21d996f7 7095 }
1b928f96
JM		 7096
7097 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7098 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
b22128ef 7099}
aefb53bd
JM		 7100
7101
7102int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7103 int duration)
7104{
7105 if (!wpa_s->ap_iface)
7106 return -1;
7107 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7108 duration);
7109}
72044390
JM		 7110
7111
7112int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7113{
9526fd29 7114 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
72044390 7115 return -1;
72044390
JM		 7116
7117 wpa_s->global->cross_connection = enabled;
7118 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7119
7120 if (!enabled) {
7121 struct wpa_supplicant *iface;
7122
7123 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7124 {
7125 if (iface->cross_connect_enabled == 0)
7126 continue;
7127
7128 iface->cross_connect_enabled = 0;
7129 iface->cross_connect_in_use = 0;
92c4465b
JM		 7130 wpa_msg_global(iface->parent, MSG_INFO,
7131 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7132 iface->ifname,
7133 iface->cross_connect_uplink);
72044390
JM		 7134 }
7135 }
7136
7137 return 0;
7138}
7139
7140
7141static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7142{
7143 struct wpa_supplicant *iface;
7144
7145 if (!uplink->global->cross_connection)
7146 return;
7147
7148 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7149 if (!iface->cross_connect_enabled)
7150 continue;
7151 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7152 0)
7153 continue;
7154 if (iface->ap_iface == NULL)
7155 continue;
7156 if (iface->cross_connect_in_use)
7157 continue;
7158
7159 iface->cross_connect_in_use = 1;
92c4465b
JM		 7160 wpa_msg_global(iface->parent, MSG_INFO,
7161 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7162 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 7163 }
7164}
7165
7166
7167static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7168{
7169 struct wpa_supplicant *iface;
7170
7171 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7172 if (!iface->cross_connect_enabled)
7173 continue;
7174 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7175 0)
7176 continue;
7177 if (!iface->cross_connect_in_use)
7178 continue;
7179
92c4465b
JM		 7180 wpa_msg_global(iface->parent, MSG_INFO,
7181 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7182 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 7183 iface->cross_connect_in_use = 0;
7184 }
7185}
7186
7187
7188void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7189{
7190 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7191 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7192 wpa_s->cross_connect_disallowed)
7193 wpas_p2p_disable_cross_connect(wpa_s);
7194 else
7195 wpas_p2p_enable_cross_connect(wpa_s);
dddc7045
JM		 7196 if (!wpa_s->ap_iface &&
7197 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7198 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
72044390
JM		 7199}
7200
7201
7202void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7203{
7204 wpas_p2p_disable_cross_connect(wpa_s);
4c2c6751
JM		 7205 if (!wpa_s->ap_iface &&
7206 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7207 wpa_s, NULL))
3071e181 7208 wpas_p2p_set_group_idle_timeout(wpa_s);
72044390
JM		 7209}
7210
7211
7212static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7213{
7214 struct wpa_supplicant *iface;
7215
7216 if (!wpa_s->global->cross_connection)
7217 return;
7218
7219 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7220 if (iface == wpa_s)
7221 continue;
7222 if (iface->drv_flags &
7223 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7224 continue;
42a69725
JM		 7225 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7226 iface != wpa_s->parent)
72044390
JM		 7227 continue;
7228
7229 wpa_s->cross_connect_enabled = 1;
7230 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7231 sizeof(wpa_s->cross_connect_uplink));
7232 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7233 "%s to %s whenever uplink is available",
7234 wpa_s->ifname, wpa_s->cross_connect_uplink);
7235
7236 if (iface->ap_iface || iface->current_ssid == NULL ||
7237 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7238 iface->cross_connect_disallowed ||
7239 iface->wpa_state != WPA_COMPLETED)
7240 break;
7241
7242 wpa_s->cross_connect_in_use = 1;
92c4465b
JM		 7243 wpa_msg_global(wpa_s->parent, MSG_INFO,
7244 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7245 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390
JM		 7246 break;
7247 }
7248}
b73bf0a7
JM		 7249
7250
7251int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7252{
7253 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7254 !wpa_s->p2p_in_provisioning)
7255 return 0; /* not P2P client operation */
7256
7257 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7258 "session overlap");
148bb37f
JM		 7259 if (wpa_s != wpa_s->parent)
7260 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
d95c5994 7261 wpas_p2p_group_formation_failed(wpa_s, 0);
b73bf0a7
JM		 7262 return 1;
7263}
b5c9da8d
JM		 7264
7265
ace0fbdb
AS		 7266void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7267{
7268 struct wpa_supplicant *wpa_s = eloop_ctx;
7269 wpas_p2p_notif_pbc_overlap(wpa_s);
7270}
7271
7272
3a8f008a
IP		 7273void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7274 enum wpas_p2p_channel_update_trig trig)
b5c9da8d 7275{
51e9f228 7276 struct p2p_channels chan, cli_chan;
c2675c87
IP		 7277 struct wpa_used_freq_data *freqs = NULL;
7278 unsigned int num = wpa_s->num_multichan_concurrent;
b5c9da8d
JM		 7279
7280 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7281 return;
7282
c2675c87
IP		 7283 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7284 if (!freqs)
7285 return;
7286
7287 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7288
b5c9da8d 7289 os_memset(&chan, 0, sizeof(chan));
51e9f228
JM		 7290 os_memset(&cli_chan, 0, sizeof(cli_chan));
7291 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
b5c9da8d
JM		 7292 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7293 "channel list");
7294 return;
7295 }
7296
51e9f228 7297 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7b42862a 7298
c2675c87 7299 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7b42862a 7300
c2675c87
IP		 7301 /*
7302 * The used frequencies map changed, so it is possible that a GO is
7303 * using a channel that is no longer valid for P2P use. It is also
7304 * possible that due to policy consideration, it would be preferable to
7305 * move it to a frequency already used by other station interfaces.
7306 */
3a8f008a 7307 wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
c2675c87
IP		 7308
7309 os_free(freqs);
b5c9da8d 7310}
59eba7a2
JM		 7311
7312
50178335
JM		 7313static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7314 struct wpa_scan_results *scan_res)
7315{
7316 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7317}
7318
7319
59eba7a2
JM		 7320int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7321{
7322 struct wpa_global *global = wpa_s->global;
7323 int found = 0;
231bbd03 7324 const u8 *peer;
59eba7a2 7325
9526fd29
JM		 7326 if (global->p2p == NULL)
7327 return -1;
7328
59eba7a2
JM		 7329 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7330
7331 if (wpa_s->pending_interface_name[0] &&
7332 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7333 found = 1;
7334
231bbd03
SS		 7335 peer = p2p_get_go_neg_peer(global->p2p);
7336 if (peer) {
7337 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7338 MACSTR, MAC2STR(peer));
7339 p2p_unauthorize(global->p2p, peer);
75c208b9 7340 found = 1;
231bbd03
SS		 7341 }
7342
50178335
JM		 7343 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7344 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7345 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7346 found = 1;
7347 }
7348
7349 if (wpa_s->pending_pd_before_join) {
7350 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7351 wpa_s->pending_pd_before_join = 0;
7352 found = 1;
7353 }
7354
59eba7a2
JM		 7355 wpas_p2p_stop_find(wpa_s);
7356
7357 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7358 if (wpa_s == global->p2p_group_formation &&
a0a9f3b0
JM		 7359 (wpa_s->p2p_in_provisioning ||
7360 wpa_s->parent->pending_interface_type ==
7361 WPA_IF_P2P_CLIENT)) {
59eba7a2
JM		 7362 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7363 "formation found - cancelling",
7364 wpa_s->ifname);
7365 found = 1;
45fee6f0
SS		 7366 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7367 wpa_s->parent, NULL);
30b80389 7368 if (wpa_s->p2p_in_provisioning) {
d95c5994 7369 wpas_group_formation_completed(wpa_s, 0, 0);
30b80389
JM		 7370 break;
7371 }
8dba4aef
JM		 7372 wpas_p2p_group_delete(wpa_s,
7373 P2P_GROUP_REMOVAL_REQUESTED);
59eba7a2 7374 break;
f05cee97
JM		 7375 } else if (wpa_s->p2p_in_invitation) {
7376 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7377 wpa_s->ifname);
7378 found = 1;
d95c5994 7379 wpas_p2p_group_formation_failed(wpa_s, 0);
59eba7a2
JM		 7380 }
7381 }
7382
7383 if (!found) {
7384 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7385 return -1;
7386 }
7387
7388 return 0;
7389}
c973f386
JM		 7390
7391
7392void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7393{
7394 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7395 return;
7396
7397 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7398 "being available anymore");
8dba4aef 7399 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
c973f386 7400}
7cfc4ac3
AGS		 7401
7402
7403void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7404 int freq_24, int freq_5, int freq_overall)
7405{
7406 struct p2p_data *p2p = wpa_s->global->p2p;
152cff6b 7407 if (p2p == NULL)
7cfc4ac3
AGS		 7408 return;
7409 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7410}
9d562b79
SS		 7411
7412
7413int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7414{
7415 u8 peer[ETH_ALEN];
7416 struct p2p_data *p2p = wpa_s->global->p2p;
7417
152cff6b 7418 if (p2p == NULL)
9d562b79
SS		 7419 return -1;
7420
7421 if (hwaddr_aton(addr, peer))
7422 return -1;
7423
7424 return p2p_unauthorize(p2p, peer);
7425}
3103f345
JB		 7426
7427
7428/**
7429 * wpas_p2p_disconnect - Disconnect from a P2P Group
7430 * @wpa_s: Pointer to wpa_supplicant data
7431 * Returns: 0 on success, -1 on failure
7432 *
7433 * This can be used to disconnect from a group in which the local end is a P2P
7434 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7435 * virtual network interface was created for this group, that interface will be
7436 * removed. Otherwise, only the configured P2P group network will be removed
7437 * from the interface.
7438 */
7439int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7440{
7441
7442 if (wpa_s == NULL)
7443 return -1;
7444
0aadd568
JM		 7445 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7446 -1 : 0;
3103f345 7447}
303f60d3
JM		 7448
7449
7450int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7451{
ec01d5f6
JM		 7452 int ret;
7453
303f60d3
JM		 7454 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7455 return 0;
7456
ec01d5f6
JM		 7457 ret = p2p_in_progress(wpa_s->global->p2p);
7458 if (ret == 0) {
7459 /*
7460 * Check whether there is an ongoing WPS provisioning step (or
7461 * other parts of group formation) on another interface since
7462 * p2p_in_progress() does not report this to avoid issues for
7463 * scans during such provisioning step.
7464 */
7465 if (wpa_s->global->p2p_group_formation &&
7466 wpa_s->global->p2p_group_formation != wpa_s) {
7467 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7468 "in group formation",
7469 wpa_s->global->p2p_group_formation->ifname);
7470 ret = 1;
7471 }
7472 }
7473
c1c0b35f 7474 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
151ab808
JB		 7475 struct os_reltime now;
7476 os_get_reltime(&now);
7477 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7478 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
c1c0b35f
JM		 7479 /* Wait for the first client has expired */
7480 wpa_s->global->p2p_go_wait_client.sec = 0;
7481 } else {
7482 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7483 ret = 1;
7484 }
7485 }
7486
ec01d5f6 7487 return ret;
303f60d3 7488}
502618f7
JM		 7489
7490
7491void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7492 struct wpa_ssid *ssid)
502618f7
JM		 7493{
7494 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7495 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7496 wpa_s->parent, NULL) > 0) {
eb6f8c2b
AC		 7497 /**
7498 * Remove the network by scheduling the group formation
7499 * timeout to happen immediately. The teardown code
7500 * needs to be scheduled to run asynch later so that we
7501 * don't delete data from under ourselves unexpectedly.
7502 * Calling wpas_p2p_group_formation_timeout directly
7503 * causes a series of crashes in WPS failure scenarios.
7504 */
502618f7
JM		 7505 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7506 "P2P group network getting removed");
eb6f8c2b
AC		 7507 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7508 wpa_s->parent, NULL);
502618f7
JM		 7509 }
7510}
87f841a1
JM		 7511
7512
7513struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
c427ac92
JM		 7514 const u8 *addr, const u8 *ssid,
7515 size_t ssid_len)
87f841a1
JM		 7516{
7517 struct wpa_ssid *s;
fbdcfd57 7518 size_t i;
87f841a1
JM		 7519
7520 for (s = wpa_s->conf->ssid; s; s = s->next) {
fbdcfd57
JM		 7521 if (s->disabled != 2)
7522 continue;
c427ac92
JM		 7523 if (ssid &&
7524 (ssid_len != s->ssid_len ||
7525 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7526 continue;
01a57fe4
JM		 7527 if (addr == NULL) {
7528 if (s->mode == WPAS_MODE_P2P_GO)
7529 return s;
7530 continue;
7531 }
fbdcfd57
JM		 7532 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7533 return s; /* peer is GO in the persistent group */
7534 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7535 continue;
7536 for (i = 0; i < s->num_p2p_clients; i++) {
79cd993a 7537 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
fbdcfd57
JM		 7538 addr, ETH_ALEN) == 0)
7539 return s; /* peer is P2P client in persistent
7540 * group */
7541 }
87f841a1
JM		 7542 }
7543
7544 return NULL;
7545}
fbdcfd57
JM		 7546
7547
7548void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7549 const u8 *addr)
7550{
eab2b50d
JM		 7551 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7552 wpa_s->parent, NULL) > 0) {
7553 /*
7554 * This can happen if WPS provisioning step is not terminated
7555 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7556 * peer was able to connect, there is no need to time out group
41f85323
JM		 7557 * formation after this, though. In addition, this is used with
7558 * the initial connection wait on the GO as a separate formation
7559 * timeout and as such, expected to be hit after the initial WPS
7560 * provisioning step.
eab2b50d 7561 */
41f85323 7562 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
61fc9048
SD		 7563
7564 if (!wpa_s->p2p_go_group_formation_completed &&
7565 !wpa_s->group_formation_reported) {
7566 /*
7567 * GO has not yet notified group formation success since
7568 * the WPS step was not completed cleanly. Do that
7569 * notification now since the P2P Client was able to
7570 * connect and as such, must have received the
7571 * credential from the WPS step.
7572 */
7573 if (wpa_s->global->p2p)
7574 p2p_wps_success_cb(wpa_s->global->p2p, addr);
d95c5994 7575 wpas_group_formation_completed(wpa_s, 1, 0);
61fc9048 7576 }
41f85323
JM		 7577 }
7578 if (!wpa_s->p2p_go_group_formation_completed) {
7579 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7580 wpa_s->p2p_go_group_formation_completed = 1;
7581 wpa_s->global->p2p_group_formation = NULL;
7582 wpa_s->p2p_in_provisioning = 0;
f05cee97 7583 wpa_s->p2p_in_invitation = 0;
eab2b50d 7584 }
c1c0b35f 7585 wpa_s->global->p2p_go_wait_client.sec = 0;
fbdcfd57
JM		 7586 if (addr == NULL)
7587 return;
7588 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7589}
aa9bb764
JM		 7590
7591
b0e669be
JM		 7592static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7593 int group_added)
aa9bb764
JM		 7594{
7595 struct wpa_supplicant *group = wpa_s;
b0e669be
JM		 7596 int ret = 0;
7597
aa9bb764
JM		 7598 if (wpa_s->global->p2p_group_formation)
7599 group = wpa_s->global->p2p_group_formation;
de7b02fd 7600 wpa_s = wpa_s->global->p2p_init_wpa_s;
b80eb89d 7601 offchannel_send_action_done(wpa_s);
aa9bb764 7602 if (group_added)
b0e669be 7603 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
aa9bb764
JM		 7604 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7605 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7606 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7607 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
3bc462cb 7608 wpa_s->p2p_persistent_id,
e2308e4b 7609 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 7610 wpa_s->p2p_go_ht40,
7611 wpa_s->p2p_go_vht);
b0e669be 7612 return ret;
aa9bb764
JM		 7613}
7614
7615
7616int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7617{
b0e669be
JM		 7618 int res;
7619
aa9bb764
JM		 7620 if (!wpa_s->p2p_fallback_to_go_neg ||
7621 wpa_s->p2p_in_provisioning <= 5)
7622 return 0;
7623
b80eb89d
JM		 7624 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7625 return 0; /* peer operating as a GO */
7626
aa9bb764
JM		 7627 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7628 "fallback to GO Negotiation");
6b005121
JM		 7629 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7630 "reason=GO-not-found");
b0e669be 7631 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
aa9bb764 7632
b0e669be 7633 return res == 1 ? 2 : 1;
aa9bb764 7634}
05a77b3b
JM		 7635
7636
7637unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7638{
05a77b3b
JM		 7639 struct wpa_supplicant *ifs;
7640
7641 if (wpa_s->wpa_state > WPA_SCANNING) {
7642 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7643 "concurrent operation",
d3b20469
NS		 7644 wpa_s->conf->p2p_search_delay);
7645 return wpa_s->conf->p2p_search_delay;
05a77b3b
JM		 7646 }
7647
5b81927d
JM		 7648 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7649 radio_list) {
7650 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
05a77b3b
JM		 7651 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7652 "delay due to concurrent operation on "
7653 "interface %s",
d3b20469
NS		 7654 wpa_s->conf->p2p_search_delay,
7655 ifs->ifname);
7656 return wpa_s->conf->p2p_search_delay;
05a77b3b
JM		 7657 }
7658 }
7659
7660 return 0;
7661}
f85f545e
JM		 7662
7663
43c693c2
JM		 7664static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7665 struct wpa_ssid *s, const u8 *addr,
7666 int iface_addr)
7667{
7668 struct psk_list_entry *psk, *tmp;
7669 int changed = 0;
7670
7671 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7672 list) {
7673 if ((iface_addr && !psk->p2p &&
7674 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7675 (!iface_addr && psk->p2p &&
7676 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7677 wpa_dbg(wpa_s, MSG_DEBUG,
7678 "P2P: Remove persistent group PSK list entry for "
7679 MACSTR " p2p=%u",
7680 MAC2STR(psk->addr), psk->p2p);
7681 dl_list_del(&psk->list);
7682 os_free(psk);
7683 changed++;
7684 }
7685 }
7686
7687 return changed;
7688}
7689
7690
01a57fe4
JM		 7691void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7692 const u8 *p2p_dev_addr,
7693 const u8 *psk, size_t psk_len)
7694{
7695 struct wpa_ssid *ssid = wpa_s->current_ssid;
7696 struct wpa_ssid *persistent;
0bceb8d6 7697 struct psk_list_entry *p, *last;
01a57fe4
JM		 7698
7699 if (psk_len != sizeof(p->psk))
7700 return;
7701
7702 if (p2p_dev_addr) {
7703 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7704 " p2p_dev_addr=" MACSTR,
7705 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7706 if (is_zero_ether_addr(p2p_dev_addr))
7707 p2p_dev_addr = NULL;
7708 } else {
7709 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7710 MAC2STR(mac_addr));
7711 }
7712
7713 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7714 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7715 /* To be added to persistent group once created */
7716 if (wpa_s->global->add_psk == NULL) {
7717 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7718 if (wpa_s->global->add_psk == NULL)
7719 return;
7720 }
7721 p = wpa_s->global->add_psk;
7722 if (p2p_dev_addr) {
7723 p->p2p = 1;
7724 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7725 } else {
7726 p->p2p = 0;
7727 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7728 }
7729 os_memcpy(p->psk, psk, psk_len);
7730 return;
7731 }
7732
7733 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7734 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7735 return;
7736 }
7737
7738 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7739 ssid->ssid_len);
7740 if (!persistent) {
7741 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7742 return;
7743 }
7744
7745 p = os_zalloc(sizeof(*p));
7746 if (p == NULL)
7747 return;
7748 if (p2p_dev_addr) {
7749 p->p2p = 1;
7750 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7751 } else {
7752 p->p2p = 0;
7753 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7754 }
7755 os_memcpy(p->psk, psk, psk_len);
7756
0bceb8d6
JM		 7757 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7758 (last = dl_list_last(&persistent->psk_list,
7759 struct psk_list_entry, list))) {
01a57fe4
JM		 7760 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7761 MACSTR " (p2p=%u) to make room for a new one",
7762 MAC2STR(last->addr), last->p2p);
7763 dl_list_del(&last->list);
7764 os_free(last);
7765 }
7766
43c693c2
JM		 7767 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7768 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7769 p2p_dev_addr == NULL);
7770 if (p2p_dev_addr) {
7771 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7772 MACSTR, MAC2STR(p2p_dev_addr));
7773 } else {
7774 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7775 MAC2STR(mac_addr));
7776 }
01a57fe4
JM		 7777 dl_list_add(&persistent->psk_list, &p->list);
7778
01a57fe4
JM		 7779 if (wpa_s->parent->conf->update_config &&
7780 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7781 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
01a57fe4 7782}
f2c56602
JM		 7783
7784
7785static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7786 struct wpa_ssid *s, const u8 *addr,
7787 int iface_addr)
7788{
43c693c2 7789 int res;
f2c56602 7790
43c693c2 7791 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
2a33687e
JM		 7792 if (res > 0 && wpa_s->conf->update_config &&
7793 wpa_config_write(wpa_s->confname, wpa_s->conf))
7794 wpa_dbg(wpa_s, MSG_DEBUG,
7795 "P2P: Failed to update configuration");
f2c56602
JM		 7796}
7797
7798
7799static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7800 const u8 *peer, int iface_addr)
7801{
7802 struct hostapd_data *hapd;
7803 struct hostapd_wpa_psk *psk, *prev, *rem;
7804 struct sta_info *sta;
7805
7806 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7807 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7808 return;
7809
7810 /* Remove per-station PSK entry */
7811 hapd = wpa_s->ap_iface->bss[0];
7812 prev = NULL;
7813 psk = hapd->conf->ssid.wpa_psk;
7814 while (psk) {
7815 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7816 (!iface_addr &&
7817 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7818 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7819 MACSTR " iface_addr=%d",
7820 MAC2STR(peer), iface_addr);
7821 if (prev)
7822 prev->next = psk->next;
7823 else
7824 hapd->conf->ssid.wpa_psk = psk->next;
7825 rem = psk;
7826 psk = psk->next;
7827 os_free(rem);
7828 } else {
7829 prev = psk;
7830 psk = psk->next;
7831 }
7832 }
7833
7834 /* Disconnect from group */
7835 if (iface_addr)
7836 sta = ap_get_sta(hapd, peer);
7837 else
7838 sta = ap_get_sta_p2p(hapd, peer);
7839 if (sta) {
7840 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7841 " (iface_addr=%d) from group",
7842 MAC2STR(peer), iface_addr);
7843 hostapd_drv_sta_deauth(hapd, sta->addr,
7844 WLAN_REASON_DEAUTH_LEAVING);
7845 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7846 }
7847}
7848
7849
7850void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7851 int iface_addr)
7852{
7853 struct wpa_ssid *s;
7854 struct wpa_supplicant *w;
43677494 7855 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
f2c56602
JM		 7856
7857 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7858
7859 /* Remove from any persistent group */
43677494 7860 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
f2c56602
JM		 7861 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7862 continue;
7863 if (!iface_addr)
43677494
BR		 7864 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
7865 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
f2c56602
JM		 7866 }
7867
7868 /* Remove from any operating group */
7869 for (w = wpa_s->global->ifaces; w; w = w->next)
7870 wpas_p2p_remove_client_go(w, peer, iface_addr);
7871}
5bf9a6c8
JM		 7872
7873
813e7b36
JM		 7874static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7875{
7876 struct wpa_supplicant *wpa_s = eloop_ctx;
7877 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7878}
7879
7880
8567866d
JJ		 7881static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7882{
7883 struct wpa_supplicant *wpa_s = eloop_ctx;
7884
7885 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7886 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7887}
7888
7889
7890int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7891 struct wpa_ssid *ssid)
7892{
7893 struct wpa_supplicant *iface;
7894
7895 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7896 if (!iface->current_ssid ||
7897 iface->current_ssid->frequency == freq ||
7898 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7899 !iface->current_ssid->p2p_group))
7900 continue;
7901
7902 /* Remove the connection with least priority */
7903 if (!wpas_is_p2p_prioritized(iface)) {
7904 /* STA connection has priority over existing
7905 * P2P connection, so remove the interface. */
7906 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7907 eloop_register_timeout(0, 0,
7908 wpas_p2p_group_freq_conflict,
7909 iface, NULL);
7910 /* If connection in progress is P2P connection, do not
7911 * proceed for the connection. */
7912 if (wpa_s == iface)
7913 return -1;
7914 else
7915 return 0;
7916 } else {
7917 /* P2P connection has priority, disable the STA network
7918 */
7919 wpa_supplicant_disable_network(wpa_s->global->ifaces,
7920 ssid);
7921 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7922 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7923 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7924 ETH_ALEN);
7925 /* If P2P connection is in progress, continue
7926 * connecting...*/
7927 if (wpa_s == iface)
7928 return 0;
7929 else
7930 return -1;
7931 }
7932 }
7933
7934 return 0;
7935}
7936
7937
5bf9a6c8
JM		 7938int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7939{
7940 struct wpa_ssid *ssid = wpa_s->current_ssid;
7941
7942 if (ssid == NULL || !ssid->p2p_group)
7943 return 0;
7944
7945 if (wpa_s->p2p_last_4way_hs_fail &&
7946 wpa_s->p2p_last_4way_hs_fail == ssid) {
7947 u8 go_dev_addr[ETH_ALEN];
7948 struct wpa_ssid *persistent;
7949
7950 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7951 ssid->ssid,
7952 ssid->ssid_len) <= 0) {
7953 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7954 goto disconnect;
7955 }
7956
7957 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7958 MACSTR, MAC2STR(go_dev_addr));
7959 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7960 ssid->ssid,
7961 ssid->ssid_len);
7962 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7963 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7964 goto disconnect;
7965 }
7966 wpa_msg_global(wpa_s->parent, MSG_INFO,
7967 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7968 persistent->id);
7969 disconnect:
7970 wpa_s->p2p_last_4way_hs_fail = NULL;
813e7b36
JM		 7971 /*
7972 * Remove the group from a timeout to avoid issues with caller
7973 * continuing to use the interface if this is on a P2P group
7974 * interface.
7975 */
7976 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7977 wpa_s, NULL);
5bf9a6c8
JM		 7978 return 1;
7979 }
7980
7981 wpa_s->p2p_last_4way_hs_fail = ssid;
7982 return 0;
7983}
93588780
JM		 7984
7985
7986#ifdef CONFIG_WPS_NFC
7987
7988static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7989 struct wpabuf *p2p)
7990{
7991 struct wpabuf *ret;
59b45d1a 7992 size_t wsc_len;
93588780
JM		 7993
7994 if (p2p == NULL) {
7995 wpabuf_free(wsc);
7996 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7997 return NULL;
7998 }
7999
59b45d1a
JM		 8000 wsc_len = wsc ? wpabuf_len(wsc) : 0;
8001 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
93588780
JM		 8002 if (ret == NULL) {
8003 wpabuf_free(wsc);
8004 wpabuf_free(p2p);
8005 return NULL;
8006 }
8007
59b45d1a
JM		 8008 wpabuf_put_be16(ret, wsc_len);
8009 if (wsc)
8010 wpabuf_put_buf(ret, wsc);
93588780
JM		 8011 wpabuf_put_be16(ret, wpabuf_len(p2p));
8012 wpabuf_put_buf(ret, p2p);
8013
8014 wpabuf_free(wsc);
8015 wpabuf_free(p2p);
8016 wpa_hexdump_buf(MSG_DEBUG,
8017 "P2P: Generated NFC connection handover message", ret);
8018
8019 if (ndef && ret) {
8020 struct wpabuf *tmp;
8021 tmp = ndef_build_p2p(ret);
8022 wpabuf_free(ret);
8023 if (tmp == NULL) {
8024 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
8025 return NULL;
8026 }
8027 ret = tmp;
8028 }
8029
8030 return ret;
8031}
8032
8033
abe44e3c
JM		 8034static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
8035 struct wpa_ssid **ssid, u8 *go_dev_addr)
59b45d1a
JM		 8036{
8037 struct wpa_supplicant *iface;
8038
abe44e3c
JM		 8039 if (go_dev_addr)
8040 os_memset(go_dev_addr, 0, ETH_ALEN);
8041 if (ssid)
8042 *ssid = NULL;
59b45d1a
JM		 8043 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8044 if (iface->wpa_state < WPA_ASSOCIATING ||
8045 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
8046 !iface->current_ssid->p2p_group ||
8047 iface->current_ssid->mode != WPAS_MODE_INFRA)
8048 continue;
abe44e3c
JM		 8049 if (ssid)
8050 *ssid = iface->current_ssid;
8051 if (go_dev_addr)
8052 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
59b45d1a
JM		 8053 return iface->assoc_freq;
8054 }
8055 return 0;
8056}
8057
8058
93588780
JM		 8059struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8060 int ndef)
8061{
8062 struct wpabuf *wsc, *p2p;
abe44e3c
JM		 8063 struct wpa_ssid *ssid;
8064 u8 go_dev_addr[ETH_ALEN];
8065 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
93588780
JM		 8066
8067 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8068 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8069 return NULL;
8070 }
8071
8072 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8073 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8074 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8075 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8076 return NULL;
8077 }
8078
59b45d1a
JM		 8079 if (cli_freq == 0) {
8080 wsc = wps_build_nfc_handover_req_p2p(
8081 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8082 } else
8083 wsc = NULL;
abe44e3c
JM		 8084 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8085 go_dev_addr, ssid ? ssid->ssid : NULL,
8086 ssid ? ssid->ssid_len : 0);
93588780
JM		 8087
8088 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8089}
8090
8091
8092struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8093 int ndef, int tag)
8094{
8095 struct wpabuf *wsc, *p2p;
abe44e3c
JM		 8096 struct wpa_ssid *ssid;
8097 u8 go_dev_addr[ETH_ALEN];
8098 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
93588780
JM		 8099
8100 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8101 return NULL;
8102
8103 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8104 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8105 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8106 return NULL;
8107
59b45d1a
JM		 8108 if (cli_freq == 0) {
8109 wsc = wps_build_nfc_handover_sel_p2p(
8110 wpa_s->parent->wps,
8111 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8112 DEV_PW_NFC_CONNECTION_HANDOVER,
8113 wpa_s->conf->wps_nfc_dh_pubkey,
8114 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8115 } else
8116 wsc = NULL;
abe44e3c
JM		 8117 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8118 go_dev_addr, ssid ? ssid->ssid : NULL,
8119 ssid ? ssid->ssid_len : 0);
93588780
JM		 8120
8121 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8122}
8123
db6ae69e
JM		 8124
8125static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8126 struct p2p_nfc_params *params)
8127{
8128 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
23318bea
JM		 8129 "connection handover (freq=%d)",
8130 params->go_freq);
8131
8132 if (params->go_freq && params->go_ssid_len) {
8133 wpa_s->p2p_wps_method = WPS_NFC;
8134 wpa_s->pending_join_wps_method = WPS_NFC;
8135 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8136 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8137 ETH_ALEN);
8138 return wpas_p2p_join_start(wpa_s, params->go_freq,
8139 params->go_ssid,
8140 params->go_ssid_len);
8141 }
8142
db6ae69e
JM		 8143 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8144 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
23318bea 8145 params->go_freq, -1, 0, 1, 1);
db6ae69e
JM		 8146}
8147
8148
8149static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8e9f53c3 8150 struct p2p_nfc_params *params, int tag)
db6ae69e 8151{
8e9f53c3
JM		 8152 int res, persistent;
8153 struct wpa_ssid *ssid;
8154
db6ae69e
JM		 8155 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8156 "connection handover");
8157 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8e9f53c3 8158 ssid = wpa_s->current_ssid;
db6ae69e
JM		 8159 if (ssid == NULL)
8160 continue;
8161 if (ssid->mode != WPAS_MODE_P2P_GO)
8162 continue;
8163 if (wpa_s->ap_iface == NULL)
8164 continue;
8165 break;
8166 }
8167 if (wpa_s == NULL) {
8168 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8169 return -1;
8170 }
8171
8172 if (wpa_s->parent->p2p_oob_dev_pw_id !=
8173 DEV_PW_NFC_CONNECTION_HANDOVER &&
8174 !wpa_s->parent->p2p_oob_dev_pw) {
8175 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8176 return -1;
8177 }
8e9f53c3 8178 res = wpas_ap_wps_add_nfc_pw(
db6ae69e
JM		 8179 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
8180 wpa_s->parent->p2p_oob_dev_pw,
8181 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
8182 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8e9f53c3
JM		 8183 if (res)
8184 return res;
8185
8186 if (!tag) {
8187 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8188 return 0;
8189 }
8190
8191 if (!params->peer ||
8192 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8193 return 0;
8194
8195 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8196 " to join", MAC2STR(params->peer->p2p_device_addr));
8197
8198 wpa_s->global->p2p_invite_group = wpa_s;
8199 persistent = ssid->p2p_persistent_group &&
8200 wpas_p2p_get_persistent(wpa_s->parent,
8201 params->peer->p2p_device_addr,
8202 ssid->ssid, ssid->ssid_len);
8203 wpa_s->parent->pending_invite_ssid_id = -1;
8204
8205 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8206 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8207 ssid->ssid, ssid->ssid_len, ssid->frequency,
8208 wpa_s->global->p2p_dev_addr, persistent, 0,
8209 wpa_s->parent->p2p_oob_dev_pw_id);
db6ae69e
JM		 8210}
8211
8212
8213static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
b56f6c88
JM		 8214 struct p2p_nfc_params *params,
8215 int forced_freq)
db6ae69e
JM		 8216{
8217 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8218 "connection handover");
8219 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8220 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
b56f6c88 8221 forced_freq, -1, 0, 1, 1);
db6ae69e
JM		 8222}
8223
8224
8225static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
b56f6c88
JM		 8226 struct p2p_nfc_params *params,
8227 int forced_freq)
db6ae69e
JM		 8228{
8229 int res;
8230
8231 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8232 "connection handover");
8233 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8234 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
b56f6c88 8235 forced_freq, -1, 0, 1, 1);
db6ae69e
JM		 8236 if (res)
8237 return res;
8238
8239 res = wpas_p2p_listen(wpa_s, 60);
8240 if (res) {
8241 p2p_unauthorize(wpa_s->global->p2p,
8242 params->peer->p2p_device_addr);
8243 }
8244
8245 return res;
8246}
8247
8248
8249static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8250 const struct wpabuf *data,
b56f6c88 8251 int sel, int tag, int forced_freq)
db6ae69e
JM		 8252{
8253 const u8 *pos, *end;
8254 u16 len, id;
8255 struct p2p_nfc_params params;
8256 int res;
8257
8258 os_memset(&params, 0, sizeof(params));
8259 params.sel = sel;
8260
8261 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8262
8263 pos = wpabuf_head(data);
8264 end = pos + wpabuf_len(data);
8265
8266 if (end - pos < 2) {
8267 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8268 "attributes");
8269 return -1;
8270 }
8271 len = WPA_GET_BE16(pos);
8272 pos += 2;
c061ae59 8273 if (len > end - pos) {
db6ae69e
JM		 8274 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8275 "attributes");
8276 return -1;
8277 }
8278 params.wsc_attr = pos;
8279 params.wsc_len = len;
8280 pos += len;
8281
8282 if (end - pos < 2) {
8283 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8284 "attributes");
8285 return -1;
8286 }
8287 len = WPA_GET_BE16(pos);
8288 pos += 2;
c061ae59 8289 if (len > end - pos) {
db6ae69e
JM		 8290 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8291 "attributes");
8292 return -1;
8293 }
8294 params.p2p_attr = pos;
8295 params.p2p_len = len;
8296 pos += len;
8297
8298 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8299 params.wsc_attr, params.wsc_len);
8300 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8301 params.p2p_attr, params.p2p_len);
8302 if (pos < end) {
8303 wpa_hexdump(MSG_DEBUG,
8304 "P2P: Ignored extra data after P2P attributes",
8305 pos, end - pos);
8306 }
8307
8308 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, &params);
8309 if (res)
8310 return res;
8311
74df9ecd
JM		 8312 if (params.next_step == NO_ACTION)
8313 return 0;
8314
8315 if (params.next_step == BOTH_GO) {
8316 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8317 MAC2STR(params.peer->p2p_device_addr));
8318 return 0;
8319 }
8320
59b45d1a 8321 if (params.next_step == PEER_CLIENT) {
abe44e3c
JM		 8322 if (!is_zero_ether_addr(params.go_dev_addr)) {
8323 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8324 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8325 " ssid=\"%s\"",
8326 MAC2STR(params.peer->p2p_device_addr),
8327 params.go_freq,
8328 MAC2STR(params.go_dev_addr),
8329 wpa_ssid_txt(params.go_ssid,
8330 params.go_ssid_len));
8331 } else {
8332 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8333 "peer=" MACSTR " freq=%d",
8334 MAC2STR(params.peer->p2p_device_addr),
8335 params.go_freq);
8336 }
59b45d1a
JM		 8337 return 0;
8338 }
8339
abe44e3c 8340 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
59b45d1a
JM		 8341 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8342 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8343 return 0;
8344 }
8345
db6ae69e
JM		 8346 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8347 wpa_s->p2p_oob_dev_pw = NULL;
8348
8349 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8350 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8351 "received");
8352 return -1;
8353 }
8354
8355 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8356 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8357 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8358 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8359 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8360 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8361 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8362
8363 if (tag) {
8364 if (id < 0x10) {
8365 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8366 "peer OOB Device Password Id %u", id);
8367 return -1;
8368 }
8369 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8370 "Device Password Id %u", id);
8371 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8372 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8373 params.oob_dev_pw_len -
8374 WPS_OOB_PUBKEY_HASH_LEN - 2);
8375 wpa_s->p2p_oob_dev_pw_id = id;
8376 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8377 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8378 params.oob_dev_pw_len -
8379 WPS_OOB_PUBKEY_HASH_LEN - 2);
8380 if (wpa_s->p2p_oob_dev_pw == NULL)
8381 return -1;
8382
8383 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8384 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8385 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8386 return -1;
8387 } else {
8388 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8389 "without Device Password");
8390 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8391 }
8392
8393 switch (params.next_step) {
8394 case NO_ACTION:
74df9ecd 8395 case BOTH_GO:
59b45d1a 8396 case PEER_CLIENT:
74df9ecd 8397 /* already covered above */
db6ae69e
JM		 8398 return 0;
8399 case JOIN_GROUP:
8400 return wpas_p2p_nfc_join_group(wpa_s, &params);
8401 case AUTH_JOIN:
8e9f53c3 8402 return wpas_p2p_nfc_auth_join(wpa_s, &params, tag);
db6ae69e 8403 case INIT_GO_NEG:
b56f6c88 8404 return wpas_p2p_nfc_init_go_neg(wpa_s, &params, forced_freq);
db6ae69e
JM		 8405 case RESP_GO_NEG:
8406 /* TODO: use own OOB Dev Pw */
b56f6c88 8407 return wpas_p2p_nfc_resp_go_neg(wpa_s, &params, forced_freq);
db6ae69e
JM		 8408 }
8409
8410 return -1;
8411}
8412
8413
dd37a938 8414int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
b56f6c88 8415 const struct wpabuf *data, int forced_freq)
dd37a938
JM		 8416{
8417 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8418 return -1;
8419
b56f6c88 8420 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
dd37a938
JM		 8421}
8422
8423
db6ae69e
JM		 8424int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8425 const struct wpabuf *req,
b56f6c88 8426 const struct wpabuf *sel, int forced_freq)
db6ae69e
JM		 8427{
8428 struct wpabuf *tmp;
8429 int ret;
8430
8431 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8432 return -1;
8433
8434 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8435
8436 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8437 wpabuf_head(req), wpabuf_len(req));
8438 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8439 wpabuf_head(sel), wpabuf_len(sel));
b56f6c88
JM		 8440 if (forced_freq)
8441 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
db6ae69e
JM		 8442 tmp = ndef_parse_p2p(init ? sel : req);
8443 if (tmp == NULL) {
8444 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8445 return -1;
8446 }
8447
b56f6c88
JM		 8448 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8449 forced_freq);
db6ae69e
JM		 8450 wpabuf_free(tmp);
8451
8452 return ret;
8453}
8454
c4f87a70
JM		 8455
8456int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8457{
8458 const u8 *if_addr;
8459 int go_intent = wpa_s->conf->p2p_go_intent;
dd876771 8460 struct wpa_supplicant *iface;
c4f87a70
JM		 8461
8462 if (wpa_s->global->p2p == NULL)
8463 return -1;
8464
8465 if (!enabled) {
dd876771
JM		 8466 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8467 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8468 {
8469 if (!iface->ap_iface)
8470 continue;
8471 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8472 }
c4f87a70
JM		 8473 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8474 0, NULL);
8475 if (wpa_s->p2p_nfc_tag_enabled)
8476 wpas_p2p_remove_pending_group_interface(wpa_s);
8477 wpa_s->p2p_nfc_tag_enabled = 0;
8478 return 0;
8479 }
8480
8481 if (wpa_s->global->p2p_disabled)
8482 return -1;
8483
8484 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8485 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8486 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8487 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8488 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8489 "to allow static handover cases");
8490 return -1;
8491 }
8492
dd876771
JM		 8493 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8494
c4f87a70
JM		 8495 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8496 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8497 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8498 if (wpa_s->p2p_oob_dev_pw == NULL)
8499 return -1;
8500 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8501
67d39cfb
MB		 8502 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8503 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8504 /*
8505 * P2P Group Interface present and the command came on group
8506 * interface, so enable the token for the current interface.
8507 */
8508 wpa_s->create_p2p_iface = 0;
8509 } else {
8510 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8511 }
c4f87a70
JM		 8512
8513 if (wpa_s->create_p2p_iface) {
8514 enum wpa_driver_if_type iftype;
8515 /* Prepare to add a new interface for the group */
8516 iftype = WPA_IF_P2P_GROUP;
8517 if (go_intent == 15)
8518 iftype = WPA_IF_P2P_GO;
8519 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8520 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8521 "interface for the group");
8522 return -1;
8523 }
8524
8525 if_addr = wpa_s->pending_interface_addr;
8526 } else
8527 if_addr = wpa_s->own_addr;
8528
8529 wpa_s->p2p_nfc_tag_enabled = enabled;
8530
dd876771
JM		 8531 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8532 struct hostapd_data *hapd;
8533 if (iface->ap_iface == NULL)
8534 continue;
8535 hapd = iface->ap_iface->bss[0];
8536 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8537 hapd->conf->wps_nfc_dh_pubkey =
8538 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8539 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8540 hapd->conf->wps_nfc_dh_privkey =
8541 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8542 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8543 hapd->conf->wps_nfc_dev_pw =
8544 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8545 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8546
8547 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8548 wpa_dbg(iface, MSG_DEBUG,
8549 "P2P: Failed to enable NFC Tag for GO");
8550 }
8551 }
c4f87a70
JM		 8552 p2p_set_authorized_oob_dev_pw_id(
8553 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8554 if_addr);
8555
8556 return 0;
8557}
8558
93588780 8559#endif /* CONFIG_WPS_NFC */
e3bd6e9d
IP		 8560
8561
8562static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8563 struct wpa_used_freq_data *freqs,
8564 unsigned int num)
8565{
8566 u8 curr_chan, cand, chan;
8567 unsigned int i;
8568
c2675c87
IP		 8569 /*
8570 * If possible, optimize the Listen channel to be a channel that is
8571 * already used by one of the other interfaces.
8572 */
8573 if (!wpa_s->conf->p2p_optimize_listen_chan)
8574 return;
8575
8576 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8577 return;
8578
e3bd6e9d
IP		 8579 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8580 for (i = 0, cand = 0; i < num; i++) {
8581 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8582 if (curr_chan == chan) {
8583 cand = 0;
8584 break;
8585 }
8586
8587 if (chan == 1 || chan == 6 || chan == 11)
8588 cand = chan;
8589 }
8590
8591 if (cand) {
8592 wpa_dbg(wpa_s, MSG_DEBUG,
abe96d06 8593 "P2P: Update Listen channel to %u based on operating channel",
e3bd6e9d
IP		 8594 cand);
8595 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8596 }
8597}
8598
8599
1a471ff0
IP		 8600static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8601{
73afc20d
AO		 8602 struct hostapd_config *conf;
8603 struct p2p_go_neg_results params;
8604 struct csa_settings csa_settings;
8605 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8606 int old_freq = current_ssid->frequency;
8607 int ret;
73afc20d 8608
1a471ff0
IP		 8609 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8610 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8611 return -1;
8612 }
8613
73afc20d
AO		 8614 /*
8615 * TODO: This function may not always work correctly. For example,
8616 * when we have a running GO and a BSS on a DFS channel.
8617 */
8618 if (wpas_p2p_init_go_params(wpa_s, &params, 0, 0, 0, NULL)) {
8619 wpa_dbg(wpa_s, MSG_DEBUG,
8620 "P2P CSA: Failed to select new frequency for GO");
8621 return -1;
8622 }
8623
8624 if (current_ssid->frequency == params.freq) {
8625 wpa_dbg(wpa_s, MSG_DEBUG,
8626 "P2P CSA: Selected same frequency - not moving GO");
8627 return 0;
8628 }
8629
8630 conf = hostapd_config_defaults();
8631 if (!conf) {
8632 wpa_dbg(wpa_s, MSG_DEBUG,
8633 "P2P CSA: Failed to allocate default config");
8634 return -1;
8635 }
8636
8637 current_ssid->frequency = params.freq;
8638 if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
8639 wpa_dbg(wpa_s, MSG_DEBUG,
8640 "P2P CSA: Failed to create new GO config");
8641 ret = -1;
8642 goto out;
8643 }
8644
8645 if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
8646 wpa_dbg(wpa_s, MSG_DEBUG,
8647 "P2P CSA: CSA to a different band is not supported");
8648 ret = -1;
8649 goto out;
8650 }
8651
8652 os_memset(&csa_settings, 0, sizeof(csa_settings));
8653 csa_settings.cs_count = P2P_GO_CSA_COUNT;
8654 csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
8655 csa_settings.freq_params.freq = params.freq;
73afc20d
AO		 8656 csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
8657 csa_settings.freq_params.ht_enabled = conf->ieee80211n;
8658 csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
8659
8660 if (conf->ieee80211ac) {
8661 int freq1 = 0, freq2 = 0;
7d82170a
LC		 8662 u8 chan, opclass;
8663
8664 if (ieee80211_freq_to_channel_ext(params.freq,
8665 conf->secondary_channel,
8666 conf->vht_oper_chwidth,
8667 &opclass, &chan) ==
8668 NUM_HOSTAPD_MODES) {
8669 wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
8670 ret = -1;
8671 goto out;
8672 }
73afc20d
AO		 8673
8674 if (conf->vht_oper_centr_freq_seg0_idx)
8675 freq1 = ieee80211_chan_to_freq(
7d82170a 8676 NULL, opclass,
73afc20d
AO		 8677 conf->vht_oper_centr_freq_seg0_idx);
8678
8679 if (conf->vht_oper_centr_freq_seg1_idx)
8680 freq2 = ieee80211_chan_to_freq(
7d82170a 8681 NULL, opclass,
73afc20d
AO		 8682 conf->vht_oper_centr_freq_seg1_idx);
8683
8684 if (freq1 < 0 || freq2 < 0) {
8685 wpa_dbg(wpa_s, MSG_DEBUG,
8686 "P2P CSA: Selected invalid VHT center freqs");
8687 ret = -1;
8688 goto out;
8689 }
8690
8691 csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
8692 csa_settings.freq_params.center_freq1 = freq1;
8693 csa_settings.freq_params.center_freq2 = freq2;
8694
8695 switch (conf->vht_oper_chwidth) {
8696 case VHT_CHANWIDTH_80MHZ:
8697 case VHT_CHANWIDTH_80P80MHZ:
8698 csa_settings.freq_params.bandwidth = 80;
8699 break;
8700 case VHT_CHANWIDTH_160MHZ:
8701 csa_settings.freq_params.bandwidth = 160;
8702 break;
8703 }
8704 }
8705
8706 ret = ap_switch_channel(wpa_s, &csa_settings);
8707out:
8708 current_ssid->frequency = old_freq;
8709 hostapd_config_free(conf);
8710 return ret;
1a471ff0
IP		 8711}
8712
8713
8714static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
8715{
8716 struct p2p_go_neg_results params;
8717 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8718
8719 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
8720
8721 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
8722 current_ssid->frequency);
8723
8724 /* Stop the AP functionality */
8725 /* TODO: Should do this in a way that does not indicated to possible
8726 * P2P Clients in the group that the group is terminated. */
8727 wpa_supplicant_ap_deinit(wpa_s);
8728
8729 /* Reselect the GO frequency */
8730 if (wpas_p2p_init_go_params(wpa_s, &params, 0, 0, 0, NULL)) {
8731 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
8732 wpas_p2p_group_delete(wpa_s,
8733 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8734 return;
8735 }
8736 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
8737 params.freq);
8738
8739 if (params.freq &&
8740 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
8741 wpa_printf(MSG_DEBUG,
8742 "P2P: Selected freq (%u MHz) is not valid for P2P",
8743 params.freq);
8744 wpas_p2p_group_delete(wpa_s,
8745 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8746 return;
8747 }
8748
8749 /* Update the frequency */
8750 current_ssid->frequency = params.freq;
8751 wpa_s->connect_without_scan = current_ssid;
8752 wpa_s->reassociate = 1;
8753 wpa_s->disconnected = 0;
8754 wpa_supplicant_req_scan(wpa_s, 0, 0);
8755}
8756
8757
8758static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
8759{
8760 struct wpa_supplicant *wpa_s = eloop_ctx;
8761
8762 if (!wpa_s->ap_iface || !wpa_s->current_ssid)
8763 return;
8764
5e1f4805
IP		 8765 wpas_p2p_go_update_common_freqs(wpa_s);
8766
3bafb0d8
AO		 8767 /* Do not move GO in the middle of a CSA */
8768 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8769 wpa_printf(MSG_DEBUG,
8770 "P2P: CSA is in progress - not moving GO");
8771 return;
8772 }
8773
1a471ff0
IP		 8774 /*
8775 * First, try a channel switch flow. If it is not supported or fails,
8776 * take down the GO and bring it up again.
8777 */
8778 if (wpas_p2p_move_go_csa(wpa_s) < 0)
8779 wpas_p2p_move_go_no_csa(wpa_s);
8780}
8781
8782
dae4c82c
IP		 8783static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
8784{
8785 struct wpa_supplicant *wpa_s = eloop_ctx;
8786 struct wpa_used_freq_data *freqs = NULL;
8787 unsigned int num = wpa_s->num_multichan_concurrent;
8788
8789 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8790 if (!freqs)
8791 return;
8792
8793 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8794
8795 /* Previous attempt to move a GO was not possible -- try again. */
3a8f008a
IP		 8796 wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
8797 WPAS_P2P_CHANNEL_UPDATE_ANY);
dae4c82c
IP		 8798
8799 os_free(freqs);
8800}
8801
8802
1a471ff0
IP		 8803/*
8804 * Consider moving a GO from its currently used frequency:
8805 * 1. It is possible that due to regulatory consideration the frequency
8806 * can no longer be used and there is a need to evacuate the GO.
8807 * 2. It is possible that due to MCC considerations, it would be preferable
8808 * to move the GO to a channel that is currently used by some other
8809 * station interface.
8810 *
8811 * In case a frequency that became invalid is once again valid, cancel a
8812 * previously initiated GO frequency change.
8813 */
8814static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
8815 struct wpa_used_freq_data *freqs,
8816 unsigned int num)
8817{
8818 unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
8819 unsigned int timeout;
8820 int freq;
8821
5e1f4805
IP		 8822 wpas_p2p_go_update_common_freqs(wpa_s);
8823
1a471ff0
IP		 8824 freq = wpa_s->current_ssid->frequency;
8825 for (i = 0, invalid_freq = 0; i < num; i++) {
8826 if (freqs[i].freq == freq) {
8827 flags = freqs[i].flags;
8828
8829 /* The channel is invalid, must change it */
8830 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
8831 wpa_dbg(wpa_s, MSG_DEBUG,
8832 "P2P: Freq=%d MHz no longer valid for GO",
8833 freq);
8834 invalid_freq = 1;
8835 }
8836 } else if (freqs[i].flags == 0) {
8837 /* Freq is not used by any other station interface */
8838 continue;
8839 } else if (!p2p_supported_freq(wpa_s->global->p2p,
8840 freqs[i].freq)) {
8841 /* Freq is not valid for P2P use cases */
8842 continue;
8843 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8844 P2P_GO_FREQ_MOVE_SCM) {
8845 policy_move = 1;
8846 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8847 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
8848 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8849 policy_move = 1;
98b05081
AO		 8850 } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
8851 P2P_GO_FREQ_MOVE_SCM_ECSA) &&
8852 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8853 if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
8854 policy_move = 1;
8855 } else if ((wpa_s->drv_flags &
8856 WPA_DRIVER_FLAGS_AP_CSA) &&
8857 wpas_p2p_go_clients_support_ecsa(wpa_s)) {
8858 u8 chan;
8859
8860 /*
8861 * We do not support CSA between bands, so move
8862 * GO only within the same band.
8863 */
8864 if (wpa_s->ap_iface->current_mode->mode ==
8865 ieee80211_freq_to_chan(freqs[i].freq,
8866 &chan))
8867 policy_move = 1;
8868 }
1a471ff0
IP		 8869 }
8870 }
8871
8872 wpa_dbg(wpa_s, MSG_DEBUG,
8873 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
8874 invalid_freq, policy_move, flags);
8875
8876 /*
8877 * The channel is valid, or we are going to have a policy move, so
8878 * cancel timeout.
8879 */
8880 if (!invalid_freq || policy_move) {
8881 wpa_dbg(wpa_s, MSG_DEBUG,
8882 "P2P: Cancel a GO move from freq=%d MHz", freq);
8883 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
dae4c82c
IP		 8884
8885 if (wpas_p2p_in_progress(wpa_s)) {
8886 wpa_dbg(wpa_s, MSG_DEBUG,
8887 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
8888 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
8889 wpa_s, NULL);
8890 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8891 wpas_p2p_reconsider_moving_go,
8892 wpa_s, NULL);
8893 return;
8894 }
1a471ff0
IP		 8895 }
8896
8897 if (!invalid_freq && (!policy_move || flags != 0)) {
8898 wpa_dbg(wpa_s, MSG_DEBUG,
8899 "P2P: Not initiating a GO frequency change");
8900 return;
8901 }
8902
3bafb0d8
AO		 8903 /*
8904 * Do not consider moving GO if it is in the middle of a CSA. When the
8905 * CSA is finished this flow should be retriggered.
8906 */
8907 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8908 wpa_dbg(wpa_s, MSG_DEBUG,
8909 "P2P: Not initiating a GO frequency change - CSA is in progress");
8910 return;
8911 }
8912
1a471ff0
IP		 8913 if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
8914 timeout = P2P_GO_FREQ_CHANGE_TIME;
8915 else
8916 timeout = 0;
8917
8918 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
8919 freq, timeout);
8920 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
8921 eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
8922}
8923
8924
8925static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
8926 struct wpa_used_freq_data *freqs,
3a8f008a
IP		 8927 unsigned int num,
8928 enum wpas_p2p_channel_update_trig trig)
1a471ff0
IP		 8929{
8930 struct wpa_supplicant *ifs;
8931
dae4c82c
IP		 8932 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
8933 NULL);
8934
1a471ff0
IP		 8935 /*
8936 * Travers all the radio interfaces, and for each GO interface, check
8937 * if there is a need to move the GO from the frequency it is using,
8938 * or in case the frequency is valid again, cancel the evacuation flow.
8939 */
8940 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
8941 radio_list) {
8942 if (ifs->current_ssid == NULL ||
8943 ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
8944 continue;
8945
3a8f008a
IP		 8946 /*
8947 * The GO was just started or completed channel switch, no need
8948 * to move it.
8949 */
8950 if (wpa_s == ifs &&
8951 (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
8952 trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
8953 wpa_dbg(wpa_s, MSG_DEBUG,
8954 "P2P: GO move - schedule re-consideration");
8955 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8956 wpas_p2p_reconsider_moving_go,
8957 wpa_s, NULL);
8958 continue;
8959 }
8960
1a471ff0
IP		 8961 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
8962 }
8963}
8964
8965
e3bd6e9d
IP		 8966void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
8967{
e3bd6e9d
IP		 8968 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8969 return;
8970
3a8f008a
IP		 8971 wpas_p2p_update_channel_list(wpa_s,
8972 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
e3bd6e9d 8973}
bd10d938
JM		 8974
8975
8976void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
8977{
bd10d938
JM		 8978 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
8979 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
8980 "the management interface is being removed");
8981 wpas_p2p_deinit_global(wpa_s->global);
8982 }
8983}
8984
8985
8986void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
8987{
8988 if (wpa_s->ap_iface->bss)
8989 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
8990 wpas_p2p_group_deinit(wpa_s);
8991}
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