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nl80211: Add VHT 160 MHz channel flags
[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52 * it is currently using, but is no longer valid for P2P use cases.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57 * Defines CSA parameters which are used when GO evacuates the no longer valid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 &&
ed7820b4 3116 group_if->current_ssid->mode == WPAS_MODE_P2P_GO) {
6cbbae2c 3117 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
ed7820b4
IP		 3118#ifdef CONFIG_TESTING_OPTIONS
3119 if (group_if->p2p_go_csa_on_inv) {
3120 wpa_printf(MSG_DEBUG,
3121 "Testing: force P2P GO CSA after invitation");
3122 eloop_cancel_timeout(
3123 wpas_p2p_reconsider_moving_go,
3124 wpa_s, NULL);
3125 eloop_register_timeout(
3126 0, 50000,
3127 wpas_p2p_reconsider_moving_go,
3128 wpa_s, NULL);
3129 }
3130#endif /* CONFIG_TESTING_OPTIONS */
3131 }
6cbbae2c 3132 return;
dbca75f8 3133 }
706887fc 3134
77e4e853
JM		 3135 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3136 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3137 "invitation exchange to indicate readiness for "
3138 "re-invocation");
3139 }
3140
b22128ef 3141 if (status != P2P_SC_SUCCESS) {
dbca75f8
JM		 3142 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3143 ssid = wpa_config_get_network(
3144 wpa_s->conf, wpa_s->pending_invite_ssid_id);
f2c56602 3145 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8 3146 }
b22128ef
JM		 3147 wpas_p2p_remove_pending_group_interface(wpa_s);
3148 return;
3149 }
3150
3151 ssid = wpa_config_get_network(wpa_s->conf,
3152 wpa_s->pending_invite_ssid_id);
3153 if (ssid == NULL) {
3154 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3155 "data matching with invitation");
3156 return;
3157 }
3158
13ece96f
JM		 3159 /*
3160 * The peer could have missed our ctrl::ack frame for Invitation
3161 * Response and continue retransmitting the frame. To reduce the
3162 * likelihood of the peer not getting successful TX status for the
3163 * Invitation Response frame, wait a short time here before starting
3164 * the persistent group so that we will remain on the current channel to
3165 * acknowledge any possible retransmission from the peer.
3166 */
3167 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3168 "starting persistent group");
3169 os_sleep(0, 50000);
3170
41d5ce9e 3171 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
e280110d 3172 freq_included(wpa_s, channels, neg_freq))
41d5ce9e
RR		 3173 freq = neg_freq;
3174 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
e280110d 3175 freq_included(wpa_s, channels, peer_oper_freq))
41d5ce9e
RR		 3176 freq = peer_oper_freq;
3177 else
3178 freq = 0;
3179
3180 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3181 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
b22128ef 3182 wpas_p2p_group_add_persistent(wpa_s, ssid,
4d32c0c4 3183 ssid->mode == WPAS_MODE_P2P_GO,
062a7c0d 3184 wpa_s->p2p_persistent_go_freq,
41d5ce9e 3185 freq,
20ea1ca4
EP		 3186 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3187 channels,
bbc6c729
JM		 3188 ssid->mode == WPAS_MODE_P2P_GO ?
3189 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
dfaf11d6 3190 0, 1);
b22128ef
JM		 3191}
3192
3193
6f3bc72b
JM		 3194static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3195 unsigned int freq)
3196{
253f2e37
AH		 3197 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3198 return 1;
af8a827b 3199 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
6f3bc72b
JM		 3200}
3201
3202
3203static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3204{
3205 reg->channel[reg->channels] = chan;
3206 reg->channels++;
3207}
3208
3209
ac8d1011 3210static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3211 struct p2p_channels *chan,
3212 struct p2p_channels *cli_chan)
ac8d1011
JM		 3213{
3214 int i, cla = 0;
3215
7475d299
JM		 3216 wpa_s->global->p2p_24ghz_social_channels = 1;
3217
51e9f228
JM		 3218 os_memset(cli_chan, 0, sizeof(*cli_chan));
3219
ac8d1011
JM		 3220 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3221 "band");
3222
3223 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3224 chan->reg_class[cla].reg_class = 81;
6f3bc72b
JM		 3225 chan->reg_class[cla].channels = 0;
3226 for (i = 0; i < 11; i++) {
3227 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3228 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3229 }
3230 if (chan->reg_class[cla].channels)
3231 cla++;
ac8d1011
JM		 3232
3233 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3234 "band");
3235
3236 /* Operating class 115 - 5 GHz, channels 36-48 */
3237 chan->reg_class[cla].reg_class = 115;
6f3bc72b
JM		 3238 chan->reg_class[cla].channels = 0;
3239 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3240 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3241 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3242 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3243 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3244 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3245 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3246 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3247 if (chan->reg_class[cla].channels)
3248 cla++;
ac8d1011
JM		 3249
3250 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3251 "band");
3252
3253 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3254 chan->reg_class[cla].reg_class = 124;
6f3bc72b
JM		 3255 chan->reg_class[cla].channels = 0;
3256 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3257 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3258 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3259 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3260 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3261 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3262 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3263 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3264 if (chan->reg_class[cla].channels)
3265 cla++;
ac8d1011
JM		 3266
3267 chan->reg_classes = cla;
3268 return 0;
3269}
3270
3271
3272static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3273 u16 num_modes,
3274 enum hostapd_hw_mode mode)
3275{
3276 u16 i;
3277
3278 for (i = 0; i < num_modes; i++) {
3279 if (modes[i].mode == mode)
3280 return &modes[i];
3281 }
3282
3283 return NULL;
3284}
3285
3286
51e9f228 3287enum chan_allowed {
0a443580 3288 NOT_ALLOWED, NO_IR, ALLOWED
51e9f228
JM		 3289};
3290
6f3bc72b
JM		 3291static int has_channel(struct wpa_global *global,
3292 struct hostapd_hw_modes *mode, u8 chan, int *flags)
ac8d1011
JM		 3293{
3294 int i;
6f3bc72b
JM		 3295 unsigned int freq;
3296
3297 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3298 chan * 5;
3299 if (wpas_p2p_disallowed_freq(global, freq))
51e9f228 3300 return NOT_ALLOWED;
ac8d1011
JM		 3301
3302 for (i = 0; i < mode->num_channels; i++) {
3303 if (mode->channels[i].chan == chan) {
51222429
JM		 3304 if (flags)
3305 *flags = mode->channels[i].flag;
51e9f228
JM		 3306 if (mode->channels[i].flag &
3307 (HOSTAPD_CHAN_DISABLED |
3308 HOSTAPD_CHAN_RADAR))
3309 return NOT_ALLOWED;
0a443580
IP		 3310 if (mode->channels[i].flag & HOSTAPD_CHAN_NO_IR)
3311 return NO_IR;
51e9f228 3312 return ALLOWED;
ac8d1011
JM		 3313 }
3314 }
3315
51e9f228 3316 return NOT_ALLOWED;
ac8d1011
JM		 3317}
3318
3319
3320struct p2p_oper_class_map {
3321 enum hostapd_hw_mode mode;
3322 u8 op_class;
3323 u8 min_chan;
3324 u8 max_chan;
3325 u8 inc;
5e1da9c8 3326 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160, BW160, BW80P80 } bw;
ac8d1011
JM		 3327};
3328
8b423edb 3329static const struct p2p_oper_class_map op_class[] = {
931228aa 3330 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
931228aa
RM		 3331#if 0 /* Do not enable HT40 on 2 GHz for now */
3332 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3333 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3334#endif
3335 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3336 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
0c9fb14e 3337 { HOSTAPD_MODE_IEEE80211A, 125, 149, 169, 4, BW20 },
931228aa
RM		 3338 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3339 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3340 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3341 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
ca9bc5b5
EP		 3342
3343 /*
3344 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3345 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3346 * 80 MHz, but currently use the following definition for simplicity
3347 * (these center frequencies are not actual channels, which makes
3348 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3349 * removing invalid channels.
3350 */
3351 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
5e1da9c8
AK		 3352 { HOSTAPD_MODE_IEEE80211A, 130, 36, 161, 4, BW80P80 },
3353 { HOSTAPD_MODE_IEEE80211A, 129, 50, 114, 16, BW160 },
1595eb93 3354 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
931228aa
RM		 3355 { -1, 0, 0, 0, 0, BW20 }
3356};
3357
3358
ca9bc5b5
EP		 3359static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3360 struct hostapd_hw_modes *mode,
3361 u8 channel)
3362{
3363 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3364 unsigned int i;
3365
3366 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3367 return 0;
3368
3369 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3370 /*
3371 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3372 * so the center channel is 6 channels away from the start/end.
3373 */
3374 if (channel >= center_channels[i] - 6 &&
3375 channel <= center_channels[i] + 6)
3376 return center_channels[i];
3377
3378 return 0;
3379}
3380
3381
3382static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3383 struct hostapd_hw_modes *mode,
3384 u8 channel, u8 bw)
3385{
3386 u8 center_chan;
3387 int i, flags;
3388 enum chan_allowed res, ret = ALLOWED;
3389
3390 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3391 if (!center_chan)
3392 return NOT_ALLOWED;
3393 if (center_chan >= 58 && center_chan <= 138)
3394 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3395
3396 /* check all the channels are available */
3397 for (i = 0; i < 4; i++) {
3398 int adj_chan = center_chan - 6 + i * 4;
3399
3400 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3401 if (res == NOT_ALLOWED)
3402 return NOT_ALLOWED;
0a443580
IP		 3403 if (res == NO_IR)
3404 ret = NO_IR;
ca9bc5b5
EP		 3405
3406 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3407 return NOT_ALLOWED;
3408 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3409 return NOT_ALLOWED;
3410 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3411 return NOT_ALLOWED;
3412 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3413 return NOT_ALLOWED;
3414 }
3415
3416 return ret;
3417}
3418
3419
bee5d8e0
AK		 3420static int wpas_p2p_get_center_160mhz(struct wpa_supplicant *wpa_s,
3421 struct hostapd_hw_modes *mode,
3422 u8 channel)
3423{
3424 u8 center_channels[] = { 50, 114 };
3425 unsigned int i;
3426
3427 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3428 return 0;
3429
3430 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3431 /*
3432 * In 160 MHz, the bandwidth "spans" 28 channels (e.g., 36-64),
3433 * so the center channel is 14 channels away from the start/end.
3434 */
3435 if (channel >= center_channels[i] - 14 &&
3436 channel <= center_channels[i] + 14)
3437 return center_channels[i];
3438
3439 return 0;
3440}
3441
3442
3443static enum chan_allowed wpas_p2p_verify_160mhz(struct wpa_supplicant *wpa_s,
3444 struct hostapd_hw_modes *mode,
3445 u8 channel, u8 bw)
3446{
3447 u8 center_chan;
3448 int i, flags;
3449 enum chan_allowed res, ret = ALLOWED;
3450
3451 center_chan = wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3452 if (!center_chan)
3453 return NOT_ALLOWED;
3454 /* VHT 160 MHz uses DFS channels in most countries. */
3455
3456 /* Check all the channels are available */
3457 for (i = 0; i < 8; i++) {
3458 int adj_chan = center_chan - 14 + i * 4;
3459
3460 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3461 if (res == NOT_ALLOWED)
3462 return NOT_ALLOWED;
3463
3464 if (res == NO_IR)
3465 ret = NO_IR;
3466
3467 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_150))
3468 return NOT_ALLOWED;
3469 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_130))
3470 return NOT_ALLOWED;
3471 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_110))
3472 return NOT_ALLOWED;
3473 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_90))
3474 return NOT_ALLOWED;
3475 if (i == 4 && !(flags & HOSTAPD_CHAN_VHT_90_70))
3476 return NOT_ALLOWED;
3477 if (i == 5 && !(flags & HOSTAPD_CHAN_VHT_110_50))
3478 return NOT_ALLOWED;
3479 if (i == 6 && !(flags & HOSTAPD_CHAN_VHT_130_30))
3480 return NOT_ALLOWED;
3481 if (i == 7 && !(flags & HOSTAPD_CHAN_VHT_150_10))
3482 return NOT_ALLOWED;
3483 }
3484
3485 return ret;
3486}
3487
3488
51e9f228
JM		 3489static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3490 struct hostapd_hw_modes *mode,
3491 u8 channel, u8 bw)
931228aa 3492{
cbf21c7c 3493 int flag = 0;
51e9f228
JM		 3494 enum chan_allowed res, res2;
3495
3496 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3497 if (bw == BW40MINUS) {
3498 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3499 return NOT_ALLOWED;
3500 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3501 } else if (bw == BW40PLUS) {
3502 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3503 return NOT_ALLOWED;
3504 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
ca9bc5b5
EP		 3505 } else if (bw == BW80) {
3506 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
bee5d8e0
AK		 3507 } else if (bw == BW160) {
3508 res2 = wpas_p2p_verify_160mhz(wpa_s, mode, channel, bw);
51e9f228
JM		 3509 }
3510
3511 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3512 return NOT_ALLOWED;
0a443580
IP		 3513 if (res == NO_IR || res2 == NO_IR)
3514 return NO_IR;
51e9f228 3515 return res;
931228aa
RM		 3516}
3517
3518
b22128ef 3519static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3520 struct p2p_channels *chan,
3521 struct p2p_channels *cli_chan)
b22128ef 3522{
6bf731e8 3523 struct hostapd_hw_modes *mode;
51e9f228 3524 int cla, op, cli_cla;
b22128ef 3525
6bf731e8 3526 if (wpa_s->hw.modes == NULL) {
b22128ef
JM		 3527 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3528 "of all supported channels; assume dualband "
3529 "support");
51e9f228 3530 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
b22128ef
JM		 3531 }
3532
51e9f228 3533 cla = cli_cla = 0;
b22128ef 3534
ac8d1011 3535 for (op = 0; op_class[op].op_class; op++) {
8b423edb 3536 const struct p2p_oper_class_map *o = &op_class[op];
ac8d1011 3537 u8 ch;
51e9f228 3538 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
b22128ef 3539
6bf731e8 3540 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
ac8d1011
JM		 3541 if (mode == NULL)
3542 continue;
7475d299
JM		 3543 if (mode->mode == HOSTAPD_MODE_IEEE80211G)
3544 wpa_s->global->p2p_24ghz_social_channels = 1;
ac8d1011 3545 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
51e9f228
JM		 3546 enum chan_allowed res;
3547 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3548 if (res == ALLOWED) {
3549 if (reg == NULL) {
3550 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3551 o->op_class);
3552 reg = &chan->reg_class[cla];
3553 cla++;
3554 reg->reg_class = o->op_class;
3555 }
3556 reg->channel[reg->channels] = ch;
3557 reg->channels++;
0a443580 3558 } else if (res == NO_IR &&
51e9f228
JM		 3559 wpa_s->conf->p2p_add_cli_chan) {
3560 if (cli_reg == NULL) {
3561 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3562 o->op_class);
3563 cli_reg = &cli_chan->reg_class[cli_cla];
3564 cli_cla++;
3565 cli_reg->reg_class = o->op_class;
3566 }
3567 cli_reg->channel[cli_reg->channels] = ch;
3568 cli_reg->channels++;
ac8d1011 3569 }
ac8d1011
JM		 3570 }
3571 if (reg) {
3572 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3573 reg->channel, reg->channels);
3574 }
51e9f228
JM		 3575 if (cli_reg) {
3576 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3577 cli_reg->channel, cli_reg->channels);
3578 }
b22128ef
JM		 3579 }
3580
ac8d1011 3581 chan->reg_classes = cla;
51e9f228 3582 cli_chan->reg_classes = cli_cla;
b22128ef 3583
b22128ef
JM		 3584 return 0;
3585}
3586
3587
7aeac985
RM		 3588int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3589 struct hostapd_hw_modes *mode, u8 channel)
3590{
51e9f228
JM		 3591 int op;
3592 enum chan_allowed ret;
7aeac985
RM		 3593
3594 for (op = 0; op_class[op].op_class; op++) {
8b423edb 3595 const struct p2p_oper_class_map *o = &op_class[op];
7aeac985
RM		 3596 u8 ch;
3597
3598 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3599 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
e4a80d89
EP		 3600 (o->bw != BW40PLUS && o->bw != BW40MINUS) ||
3601 ch != channel)
7aeac985
RM		 3602 continue;
3603 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
51e9f228 3604 if (ret == ALLOWED)
7aeac985 3605 return (o->bw == BW40MINUS) ? -1 : 1;
7aeac985
RM		 3606 }
3607 }
3608 return 0;
3609}
3610
3611
ca9bc5b5
EP		 3612int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3613 struct hostapd_hw_modes *mode, u8 channel)
3614{
3615 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3616 return 0;
3617
3618 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3619}
3620
3621
bee5d8e0
AK		 3622int wpas_p2p_get_vht160_center(struct wpa_supplicant *wpa_s,
3623 struct hostapd_hw_modes *mode, u8 channel)
3624{
3625 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW160))
3626 return 0;
3627 return wpas_p2p_get_center_160mhz(wpa_s, mode, channel);
3628}
3629
3630
b22128ef
JM		 3631static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3632 size_t buf_len)
3633{
3634 struct wpa_supplicant *wpa_s = ctx;
3635
3636 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3637 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3638 break;
3639 }
3640 if (wpa_s == NULL)
3641 return -1;
3642
3643 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3644}
3645
3646
6f04642f
TB		 3647struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3648 const u8 *ssid, size_t ssid_len)
b1aebbc4 3649{
6f04642f
TB		 3650 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3651 struct wpa_ssid *s = wpa_s->current_ssid;
3652 if (s == NULL)
3653 continue;
3654 if (s->mode != WPAS_MODE_P2P_GO &&
3655 s->mode != WPAS_MODE_AP &&
3656 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3657 continue;
3658 if (s->ssid_len != ssid_len ||
af65bc36 3659 os_memcmp(ssid, s->ssid, ssid_len) != 0)
6f04642f
TB		 3660 continue;
3661 return wpa_s;
3662 }
3663
3664 return NULL;
3665
3666}
3667
b1aebbc4 3668
6f04642f
TB		 3669struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3670 const u8 *peer_dev_addr)
3671{
b1aebbc4
JM		 3672 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3673 struct wpa_ssid *ssid = wpa_s->current_ssid;
9f59fe8d 3674 if (ssid && (ssid->mode != WPAS_MODE_INFRA || !ssid->p2p_group))
b1aebbc4 3675 continue;
6f04642f
TB		 3676 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3677 return wpa_s;
b1aebbc4
JM		 3678 }
3679
6f04642f
TB		 3680 return NULL;
3681}
3682
3683
3684static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3685{
3686 struct wpa_supplicant *wpa_s = ctx;
3687
3688 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
b1aebbc4
JM		 3689}
3690
3691
a2d63657
RR		 3692static int wpas_is_concurrent_session_active(void *ctx)
3693{
3694 struct wpa_supplicant *wpa_s = ctx;
3695 struct wpa_supplicant *ifs;
3696
3697 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3698 if (ifs == wpa_s)
3699 continue;
3700 if (ifs->wpa_state > WPA_ASSOCIATED)
3701 return 1;
3702 }
3703 return 0;
3704}
3705
3706
ed496f13
JM		 3707static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3708{
3709 struct wpa_supplicant *wpa_s = ctx;
92c4465b 3710 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
ed496f13
JM		 3711}
3712
3713
f1a61311
JM		 3714int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3715 const char *conf_p2p_dev)
c68f6200
AS		 3716{
3717 struct wpa_interface iface;
3718 struct wpa_supplicant *p2pdev_wpa_s;
3719 char ifname[100];
3720 char force_name[100];
3721 int ret;
3722
1d399771
JM		 3723 ret = os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3724 wpa_s->ifname);
3725 if (os_snprintf_error(sizeof(ifname), ret))
3726 return -1;
c68f6200
AS		 3727 force_name[0] = '\0';
3728 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3729 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3730 force_name, wpa_s->pending_interface_addr, NULL);
3731 if (ret < 0) {
3732 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3733 return ret;
3734 }
3735 os_strlcpy(wpa_s->pending_interface_name, ifname,
3736 sizeof(wpa_s->pending_interface_name));
3737
3738 os_memset(&iface, 0, sizeof(iface));
3739 iface.p2p_mgmt = 1;
3740 iface.ifname = wpa_s->pending_interface_name;
3741 iface.driver = wpa_s->driver->name;
c68f6200 3742 iface.driver_param = wpa_s->conf->driver_param;
c16a7590
IP		 3743
3744 /*
3745 * If a P2P Device configuration file was given, use it as the interface
3746 * configuration file (instead of using parent's configuration file.
3747 */
f1a61311
JM		 3748 if (conf_p2p_dev) {
3749 iface.confname = conf_p2p_dev;
c16a7590
IP		 3750 iface.ctrl_interface = NULL;
3751 } else {
3752 iface.confname = wpa_s->confname;
3753 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3754 }
c16a7590 3755
1772d348 3756 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface, wpa_s);
c68f6200
AS		 3757 if (!p2pdev_wpa_s) {
3758 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3759 return -1;
3760 }
3761
3762 wpa_s->pending_interface_name[0] = '\0';
3763 return 0;
3764}
3765
3766
c64e3a08
JM		 3767static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3768 const u8 *noa, size_t noa_len)
3769{
3770 struct wpa_supplicant *wpa_s, *intf = ctx;
3771 char hex[100];
3772
3773 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3774 if (wpa_s->waiting_presence_resp)
3775 break;
3776 }
3777 if (!wpa_s) {
3778 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3779 return;
3780 }
3781 wpa_s->waiting_presence_resp = 0;
3782
3783 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3784 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3785 " status=%u noa=%s", MAC2STR(src), status, hex);
3786}
3787
3788
369678ad
KV		 3789static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
3790 size_t ssid_len, u8 *go_dev_addr,
1f1a08b4
AO		 3791 u8 *ret_ssid, size_t *ret_ssid_len,
3792 u8 *intended_iface_addr)
369678ad
KV		 3793{
3794 struct wpa_supplicant *wpa_s = ctx;
3795 struct wpa_ssid *s;
3796
3797 s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
3798 if (s) {
3799 os_memcpy(ret_ssid, s->ssid, s->ssid_len);
3800 *ret_ssid_len = s->ssid_len;
3801 os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
1f1a08b4
AO		 3802
3803 if (s->mode != WPAS_MODE_P2P_GO) {
3804 os_memset(intended_iface_addr, 0, ETH_ALEN);
3805 } else if (wpas_p2p_create_iface(wpa_s)) {
3806 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO))
3807 return 0;
3808
3809 os_memcpy(intended_iface_addr,
3810 wpa_s->pending_interface_addr, ETH_ALEN);
3811 } else {
3812 os_memcpy(intended_iface_addr, wpa_s->own_addr,
3813 ETH_ALEN);
3814 }
369678ad
KV		 3815 return 1;
3816 }
3817
3818 return 0;
3819}
3820
3821
3822static int wpas_get_go_info(void *ctx, u8 *intended_addr,
ebd32943
IP		 3823 u8 *ssid, size_t *ssid_len, int *group_iface,
3824 unsigned int *freq)
369678ad
KV		 3825{
3826 struct wpa_supplicant *wpa_s = ctx;
ebd32943 3827 struct wpa_supplicant *go;
369678ad 3828 struct wpa_ssid *s;
369678ad 3829
5cc6ec0f
AO		 3830 /*
3831 * group_iface will be set to 1 only if a dedicated interface for P2P
3832 * role is required. First, we try to reuse an active GO. However,
3833 * if it is not present, we will try to reactivate an existing
3834 * persistent group and set group_iface to 1, so the caller will know
3835 * that the pending interface should be used.
3836 */
3837 *group_iface = 0;
ebd32943
IP		 3838
3839 if (freq)
3840 *freq = 0;
3841
3842 go = wpas_p2p_get_go_group(wpa_s);
3843 if (!go) {
369678ad 3844 s = wpas_p2p_get_persistent_go(wpa_s);
5cc6ec0f 3845 *group_iface = wpas_p2p_create_iface(wpa_s);
369678ad 3846 if (s)
ebd32943 3847 os_memcpy(intended_addr, s->bssid, ETH_ALEN);
5cc6ec0f
AO		 3848 else
3849 return 0;
ebd32943
IP		 3850 } else {
3851 s = go->current_ssid;
3852 os_memcpy(intended_addr, go->own_addr, ETH_ALEN);
3853 if (freq)
3854 *freq = go->assoc_freq;
369678ad
KV		 3855 }
3856
369678ad
KV		 3857 os_memcpy(ssid, s->ssid, s->ssid_len);
3858 *ssid_len = s->ssid_len;
3859
3860 return 1;
3861}
3862
3863
895d94de
KV		 3864static int wpas_remove_stale_groups(void *ctx, const u8 *peer, const u8 *go,
3865 const u8 *ssid, size_t ssid_len)
3866{
3867 struct wpa_supplicant *wpa_s = ctx;
3868 struct wpa_ssid *s;
3869 int save_config = 0;
3870 size_t i;
3871
3872 /* Start with our first choice of Persistent Groups */
3873 while ((s = wpas_p2p_get_persistent(wpa_s, peer, NULL, 0))) {
3874 if (go && ssid && ssid_len &&
3875 s->ssid_len == ssid_len &&
3876 os_memcmp(go, s->bssid, ETH_ALEN) == 0 &&
3877 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3878 break;
3879
3880 /* Remove stale persistent group */
3881 if (s->mode != WPAS_MODE_P2P_GO || s->num_p2p_clients <= 1) {
3882 wpa_config_remove_network(wpa_s->conf, s->id);
3883 save_config = 1;
3884 continue;
3885 }
3886
3887 for (i = 0; i < s->num_p2p_clients; i++) {
3888 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
3889 peer, ETH_ALEN) != 0)
3890 continue;
3891
3892 os_memmove(s->p2p_client_list + i * 2 * ETH_ALEN,
3893 s->p2p_client_list + (i + 1) * 2 * ETH_ALEN,
3894 (s->num_p2p_clients - i - 1) * 2 * ETH_ALEN);
3895 break;
3896 }
3897 s->num_p2p_clients--;
3898 save_config = 1;
3899 }
3900
3901 if (save_config)
3902 p2p_config_write(wpa_s);
3903
3904 /* Return TRUE if valid SSID remains */
3905 return s != NULL;
3906}
3907
3908
88f3d7c9
MS		 3909static void wpas_p2ps_get_feat_cap_str(char *buf, size_t buf_len,
3910 const u8 *feat_cap, size_t feat_cap_len)
3911{
3912 static const char pref[] = " feature_cap=";
3913 int ret;
3914
3915 buf[0] = '\0';
3916
3917 /*
3918 * We expect a feature capability to contain at least one byte to be
3919 * reported. The string buffer provided by the caller function is
3920 * expected to be big enough to contain all bytes of the attribute for
3921 * known specifications. This function truncates the reported bytes if
3922 * the feature capability data exceeds the string buffer size.
3923 */
3924 if (!feat_cap || !feat_cap_len || buf_len < sizeof(pref) + 2)
3925 return;
3926
3927 os_memcpy(buf, pref, sizeof(pref));
3928 ret = wpa_snprintf_hex(&buf[sizeof(pref) - 1],
3929 buf_len - sizeof(pref) + 1,
3930 feat_cap, feat_cap_len);
3931
3932 if (ret != (2 * (int) feat_cap_len))
3933 wpa_printf(MSG_WARNING, "P2PS feature_cap bytes truncated");
3934}
3935
3936
5fefce27
KV		 3937static void wpas_p2ps_prov_complete(void *ctx, u8 status, const u8 *dev,
3938 const u8 *adv_mac, const u8 *ses_mac,
3939 const u8 *grp_mac, u32 adv_id, u32 ses_id,
3940 u8 conncap, int passwd_id,
3941 const u8 *persist_ssid,
3942 size_t persist_ssid_size, int response_done,
88f3d7c9 3943 int prov_start, const char *session_info,
8bb8e6ed
IP		 3944 const u8 *feat_cap, size_t feat_cap_len,
3945 unsigned int freq)
5fefce27
KV		 3946{
3947 struct wpa_supplicant *wpa_s = ctx;
3948 u8 mac[ETH_ALEN];
cd571e14 3949 struct wpa_ssid *persistent_go, *stale, *s = NULL;
5fefce27
KV		 3950 int save_config = 0;
3951 struct wpa_supplicant *go_wpa_s;
88f3d7c9 3952 char feat_cap_str[256];
5fefce27
KV		 3953
3954 if (!dev)
3955 return;
3956
3957 os_memset(mac, 0, ETH_ALEN);
3958 if (!adv_mac)
3959 adv_mac = mac;
3960 if (!ses_mac)
3961 ses_mac = mac;
3962 if (!grp_mac)
3963 grp_mac = mac;
3964
88f3d7c9
MS		 3965 wpas_p2ps_get_feat_cap_str(feat_cap_str, sizeof(feat_cap_str),
3966 feat_cap, feat_cap_len);
3967
5fefce27
KV		 3968 if (prov_start) {
3969 if (session_info == NULL) {
3970 wpa_msg_global(wpa_s, MSG_INFO,
3971 P2P_EVENT_P2PS_PROVISION_START MACSTR
3972 " adv_id=%x conncap=%x"
3973 " adv_mac=" MACSTR
3974 " session=%x mac=" MACSTR
88f3d7c9 3975 " dev_passwd_id=%d%s",
5fefce27
KV		 3976 MAC2STR(dev), adv_id, conncap,
3977 MAC2STR(adv_mac),
3978 ses_id, MAC2STR(ses_mac),
88f3d7c9 3979 passwd_id, feat_cap_str);
5fefce27
KV		 3980 } else {
3981 wpa_msg_global(wpa_s, MSG_INFO,
3982 P2P_EVENT_P2PS_PROVISION_START MACSTR
3983 " adv_id=%x conncap=%x"
3984 " adv_mac=" MACSTR
3985 " session=%x mac=" MACSTR
88f3d7c9 3986 " dev_passwd_id=%d info='%s'%s",
5fefce27
KV		 3987 MAC2STR(dev), adv_id, conncap,
3988 MAC2STR(adv_mac),
3989 ses_id, MAC2STR(ses_mac),
88f3d7c9 3990 passwd_id, session_info, feat_cap_str);
5fefce27
KV		 3991 }
3992 return;
3993 }
3994
3995 go_wpa_s = wpas_p2p_get_go_group(wpa_s);
3996 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
3997
3998 if (status && status != P2P_SC_SUCCESS_DEFERRED) {
3999 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4000 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4001
4002 if (persistent_go && !persistent_go->num_p2p_clients) {
4003 /* remove empty persistent GO */
4004 wpa_config_remove_network(wpa_s->conf,
4005 persistent_go->id);
4006 }
4007
4008 wpa_msg_global(wpa_s, MSG_INFO,
4009 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4010 " status=%d"
4011 " adv_id=%x adv_mac=" MACSTR
88f3d7c9 4012 " session=%x mac=" MACSTR "%s",
5fefce27
KV		 4013 MAC2STR(dev), status,
4014 adv_id, MAC2STR(adv_mac),
88f3d7c9 4015 ses_id, MAC2STR(ses_mac), feat_cap_str);
5fefce27
KV		 4016 return;
4017 }
4018
4019 /* Clean up stale persistent groups with this device */
cd571e14
MS		 4020 if (persist_ssid && persist_ssid_size)
4021 s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
4022 persist_ssid_size);
1f14e2bf
AO		 4023
4024 if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
2a098e36 4025 is_zero_ether_addr(grp_mac)) {
1f14e2bf
AO		 4026 wpa_dbg(wpa_s, MSG_ERROR,
4027 "P2P: Peer device is a GO in a persistent group, but it did not provide the intended MAC address");
4028 return;
4029 }
4030
5fefce27
KV		 4031 for (;;) {
4032 stale = wpas_p2p_get_persistent(wpa_s, dev, NULL, 0);
4033 if (!stale)
4034 break;
4035
4036 if (s && s->ssid_len == stale->ssid_len &&
4037 os_memcmp(stale->bssid, s->bssid, ETH_ALEN) == 0 &&
4038 os_memcmp(stale->ssid, s->ssid, s->ssid_len) == 0)
4039 break;
4040
4041 /* Remove stale persistent group */
4042 if (stale->mode != WPAS_MODE_P2P_GO ||
4043 stale->num_p2p_clients <= 1) {
4044 wpa_config_remove_network(wpa_s->conf, stale->id);
4045 } else {
4046 size_t i;
4047
4048 for (i = 0; i < stale->num_p2p_clients; i++) {
4049 if (os_memcmp(stale->p2p_client_list +
4050 i * ETH_ALEN,
4051 dev, ETH_ALEN) == 0) {
4052 os_memmove(stale->p2p_client_list +
4053 i * ETH_ALEN,
4054 stale->p2p_client_list +
4055 (i + 1) * ETH_ALEN,
4056 (stale->num_p2p_clients -
4057 i - 1) * ETH_ALEN);
4058 break;
4059 }
4060 }
4061 stale->num_p2p_clients--;
4062 }
4063 save_config = 1;
4064 }
4065
4066 if (save_config)
4067 p2p_config_write(wpa_s);
4068
4069 if (s) {
4070 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4071 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4072
4073 if (persistent_go && s != persistent_go &&
4074 !persistent_go->num_p2p_clients) {
4075 /* remove empty persistent GO */
4076 wpa_config_remove_network(wpa_s->conf,
4077 persistent_go->id);
4078 /* Save config */
4079 }
4080
4081 wpa_msg_global(wpa_s, MSG_INFO,
4082 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4083 " status=%d"
4084 " adv_id=%x adv_mac=" MACSTR
4085 " session=%x mac=" MACSTR
88f3d7c9 4086 " persist=%d%s",
5fefce27
KV		 4087 MAC2STR(dev), status,
4088 adv_id, MAC2STR(adv_mac),
88f3d7c9 4089 ses_id, MAC2STR(ses_mac), s->id, feat_cap_str);
5fefce27
KV		 4090 return;
4091 }
4092
4093 if (conncap == P2PS_SETUP_GROUP_OWNER) {
23bb9828
AO		 4094 /*
4095 * We need to copy the interface name. Simply saving a
4096 * pointer isn't enough, since if we use pending_interface_name
4097 * it will be overwritten when the group is added.
4098 */
4099 char go_ifname[100];
4100
4101 go_ifname[0] = '\0';
5fefce27
KV		 4102 if (!go_wpa_s) {
4103 wpa_s->global->pending_p2ps_group = 1;
8bb8e6ed 4104 wpa_s->global->pending_p2ps_group_freq = freq;
5fefce27 4105
a698d6c8 4106 if (!wpas_p2p_create_iface(wpa_s))
23bb9828
AO		 4107 os_memcpy(go_ifname, wpa_s->ifname,
4108 sizeof(go_ifname));
5fefce27 4109 else if (wpa_s->pending_interface_name[0])
23bb9828
AO		 4110 os_memcpy(go_ifname,
4111 wpa_s->pending_interface_name,
4112 sizeof(go_ifname));
5fefce27 4113
23bb9828 4114 if (!go_ifname[0]) {
5fefce27
KV		 4115 wpas_p2ps_prov_complete(
4116 wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
4117 dev, adv_mac, ses_mac,
2a098e36 4118 grp_mac, adv_id, ses_id, 0, 0,
8bb8e6ed 4119 NULL, 0, 0, 0, NULL, NULL, 0, 0);
5fefce27
KV		 4120 return;
4121 }
4122
4123 /* If PD Resp complete, start up the GO */
4124 if (response_done && persistent_go) {
4125 wpas_p2p_group_add_persistent(
4126 wpa_s, persistent_go,
8bb8e6ed 4127 0, 0, freq, 0, 0, NULL,
5fefce27
KV		 4128 persistent_go->mode ==
4129 WPAS_MODE_P2P_GO ?
4130 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
dfaf11d6 4131 0, 0);
5fefce27 4132 } else if (response_done) {
8bb8e6ed 4133 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0);
5fefce27 4134 }
306aaf49
KV		 4135
4136 if (passwd_id == DEV_PW_P2PS_DEFAULT) {
b9da88d6
AO		 4137 os_memcpy(wpa_s->p2ps_join_addr, grp_mac,
4138 ETH_ALEN);
4139 wpa_s->p2ps_method_config_any = 1;
306aaf49 4140 }
5fefce27 4141 } else if (passwd_id == DEV_PW_P2PS_DEFAULT) {
23bb9828
AO		 4142 os_memcpy(go_ifname, go_wpa_s->ifname,
4143 sizeof(go_ifname));
5fefce27 4144
b9da88d6
AO		 4145 if (is_zero_ether_addr(grp_mac)) {
4146 wpa_dbg(go_wpa_s, MSG_DEBUG,
4147 "P2P: Setting PIN-1 for ANY");
4148 wpa_supplicant_ap_wps_pin(go_wpa_s, NULL,
4149 "12345670", NULL, 0,
4150 0);
4151 } else {
4152 wpa_dbg(go_wpa_s, MSG_DEBUG,
4153 "P2P: Setting PIN-1 for " MACSTR,
4154 MAC2STR(grp_mac));
4155 wpa_supplicant_ap_wps_pin(go_wpa_s, grp_mac,
4156 "12345670", NULL, 0,
4157 0);
4158 }
306aaf49 4159
b9da88d6
AO		 4160 os_memcpy(wpa_s->p2ps_join_addr, grp_mac, ETH_ALEN);
4161 wpa_s->p2ps_method_config_any = 1;
5fefce27
KV		 4162 }
4163
4164 wpa_msg_global(wpa_s, MSG_INFO,
4165 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4166 " status=%d conncap=%x"
4167 " adv_id=%x adv_mac=" MACSTR
4168 " session=%x mac=" MACSTR
88f3d7c9 4169 " dev_passwd_id=%d go=%s%s",
5fefce27
KV		 4170 MAC2STR(dev), status, conncap,
4171 adv_id, MAC2STR(adv_mac),
4172 ses_id, MAC2STR(ses_mac),
88f3d7c9 4173 passwd_id, go_ifname, feat_cap_str);
5fefce27
KV		 4174 return;
4175 }
4176
4177 if (go_wpa_s && !p2p_group_go_member_count(wpa_s))
4178 wpas_p2p_group_remove(wpa_s, go_wpa_s->ifname);
4179
4180 if (persistent_go && !persistent_go->num_p2p_clients) {
4181 /* remove empty persistent GO */
4182 wpa_config_remove_network(wpa_s->conf, persistent_go->id);
4183 }
4184
4185 if (conncap == P2PS_SETUP_CLIENT) {
4186 wpa_msg_global(wpa_s, MSG_INFO,
4187 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4188 " status=%d conncap=%x"
4189 " adv_id=%x adv_mac=" MACSTR
4190 " session=%x mac=" MACSTR
88f3d7c9 4191 " dev_passwd_id=%d join=" MACSTR "%s",
5fefce27
KV		 4192 MAC2STR(dev), status, conncap,
4193 adv_id, MAC2STR(adv_mac),
4194 ses_id, MAC2STR(ses_mac),
88f3d7c9 4195 passwd_id, MAC2STR(grp_mac), feat_cap_str);
5fefce27
KV		 4196 } else {
4197 wpa_msg_global(wpa_s, MSG_INFO,
4198 P2P_EVENT_P2PS_PROVISION_DONE MACSTR
4199 " status=%d conncap=%x"
4200 " adv_id=%x adv_mac=" MACSTR
4201 " session=%x mac=" MACSTR
88f3d7c9 4202 " dev_passwd_id=%d%s",
5fefce27
KV		 4203 MAC2STR(dev), status, conncap,
4204 adv_id, MAC2STR(adv_mac),
4205 ses_id, MAC2STR(ses_mac),
88f3d7c9 4206 passwd_id, feat_cap_str);
5fefce27
KV		 4207 }
4208}
4209
4210
0f1034e3
SD		 4211static int _wpas_p2p_in_progress(void *ctx)
4212{
4213 struct wpa_supplicant *wpa_s = ctx;
4214 return wpas_p2p_in_progress(wpa_s);
4215}
4216
4217
9a58e521
KV		 4218static int wpas_prov_disc_resp_cb(void *ctx)
4219{
4220 struct wpa_supplicant *wpa_s = ctx;
4221 struct wpa_ssid *persistent_go;
8bb8e6ed 4222 unsigned int freq;
9a58e521
KV		 4223
4224 if (!wpa_s->global->pending_p2ps_group)
4225 return 0;
4226
8bb8e6ed
IP		 4227 freq = wpa_s->global->pending_p2ps_group_freq;
4228 wpa_s->global->pending_p2ps_group_freq = 0;
9a58e521
KV		 4229 wpa_s->global->pending_p2ps_group = 0;
4230
4231 if (wpas_p2p_get_go_group(wpa_s))
4232 return 0;
4233 persistent_go = wpas_p2p_get_persistent_go(wpa_s);
4234
4235 if (persistent_go) {
4236 wpas_p2p_group_add_persistent(
4237 wpa_s, persistent_go, 0, 0, 0, 0, 0, NULL,
4238 persistent_go->mode == WPAS_MODE_P2P_GO ?
dfaf11d6 4239 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
9a58e521 4240 } else {
8bb8e6ed 4241 wpas_p2p_group_add(wpa_s, 1, freq, 0, 0);
9a58e521
KV		 4242 }
4243
4244 return 1;
4245}
4246
4247
fc71f7d9
AK		 4248static int wpas_p2p_get_pref_freq_list(void *ctx, int go,
4249 unsigned int *len,
4250 unsigned int *freq_list)
4251{
4252 struct wpa_supplicant *wpa_s = ctx;
4253
4254 return wpa_drv_get_pref_freq_list(wpa_s, go ? WPA_IF_P2P_GO :
4255 WPA_IF_P2P_CLIENT, len, freq_list);
4256}
4257
4258
b22128ef
JM		 4259/**
4260 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
4261 * @global: Pointer to global data from wpa_supplicant_init()
4262 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4263 * Returns: 0 on success, -1 on failure
4264 */
4265int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
4266{
4267 struct p2p_config p2p;
f95cac27 4268 int i;
b22128ef 4269
f2b3f4de
SS		 4270 if (wpa_s->conf->p2p_disabled)
4271 return 0;
4272
b22128ef
JM		 4273 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4274 return 0;
4275
b22128ef
JM		 4276 if (global->p2p)
4277 return 0;
4278
4279 os_memset(&p2p, 0, sizeof(p2p));
b22128ef 4280 p2p.cb_ctx = wpa_s;
ed496f13 4281 p2p.debug_print = wpas_p2p_debug_print;
b22128ef
JM		 4282 p2p.p2p_scan = wpas_p2p_scan;
4283 p2p.send_action = wpas_send_action;
4284 p2p.send_action_done = wpas_send_action_done;
4285 p2p.go_neg_completed = wpas_go_neg_completed;
4286 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
4287 p2p.dev_found = wpas_dev_found;
56eeb8f2 4288 p2p.dev_lost = wpas_dev_lost;
710ae9ac 4289 p2p.find_stopped = wpas_find_stopped;
b22128ef
JM		 4290 p2p.start_listen = wpas_start_listen;
4291 p2p.stop_listen = wpas_stop_listen;
4292 p2p.send_probe_resp = wpas_send_probe_resp;
4293 p2p.sd_request = wpas_sd_request;
4294 p2p.sd_response = wpas_sd_response;
4295 p2p.prov_disc_req = wpas_prov_disc_req;
4296 p2p.prov_disc_resp = wpas_prov_disc_resp;
dd8a7e05 4297 p2p.prov_disc_fail = wpas_prov_disc_fail;
b22128ef
JM		 4298 p2p.invitation_process = wpas_invitation_process;
4299 p2p.invitation_received = wpas_invitation_received;
4300 p2p.invitation_result = wpas_invitation_result;
4301 p2p.get_noa = wpas_get_noa;
b1aebbc4 4302 p2p.go_connected = wpas_go_connected;
c64e3a08 4303 p2p.presence_resp = wpas_presence_resp;
a2d63657 4304 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
0f1034e3 4305 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
369678ad
KV		 4306 p2p.get_persistent_group = wpas_get_persistent_group;
4307 p2p.get_go_info = wpas_get_go_info;
895d94de 4308 p2p.remove_stale_groups = wpas_remove_stale_groups;
5fefce27 4309 p2p.p2ps_prov_complete = wpas_p2ps_prov_complete;
9a58e521 4310 p2p.prov_disc_resp_cb = wpas_prov_disc_resp_cb;
1300cc8e 4311 p2p.p2ps_group_capability = p2ps_group_capability;
fc71f7d9 4312 p2p.get_pref_freq_list = wpas_p2p_get_pref_freq_list;
b22128ef
JM		 4313
4314 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
d7e70476 4315 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
b22128ef 4316 p2p.dev_name = wpa_s->conf->device_name;
b6e01800
JM		 4317 p2p.manufacturer = wpa_s->conf->manufacturer;
4318 p2p.model_name = wpa_s->conf->model_name;
4319 p2p.model_number = wpa_s->conf->model_number;
4320 p2p.serial_number = wpa_s->conf->serial_number;
4321 if (wpa_s->wps) {
4322 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
4323 p2p.config_methods = wpa_s->wps->config_methods;
4324 }
b22128ef 4325
1595eb93
AM		 4326 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
4327 wpa_printf(MSG_ERROR,
4328 "P2P: Failed to configure supported channel list");
4329 return -1;
4330 }
4331
b22128ef
JM		 4332 if (wpa_s->conf->p2p_listen_reg_class &&
4333 wpa_s->conf->p2p_listen_channel) {
4334 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
4335 p2p.channel = wpa_s->conf->p2p_listen_channel;
e3bd6e9d 4336 p2p.channel_forced = 1;
b22128ef 4337 } else {
b22128ef
JM		 4338 /*
4339 * Pick one of the social channels randomly as the listen
4340 * channel.
4341 */
1595eb93
AM		 4342 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
4343 &p2p.channel) != 0) {
5678a2d8
JM		 4344 wpa_printf(MSG_INFO,
4345 "P2P: No social channels supported by the driver - do not enable P2P");
4346 return 0;
1595eb93 4347 }
e3bd6e9d 4348 p2p.channel_forced = 0;
b22128ef 4349 }
1595eb93
AM		 4350 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
4351 p2p.reg_class, p2p.channel);
b22128ef
JM		 4352
4353 if (wpa_s->conf->p2p_oper_reg_class &&
4354 wpa_s->conf->p2p_oper_channel) {
4355 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4356 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 4357 p2p.cfg_op_channel = 1;
4358 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
4359 "%d:%d", p2p.op_reg_class, p2p.op_channel);
4360
b22128ef 4361 } else {
b22128ef 4362 /*
1595eb93
AM		 4363 * Use random operation channel from 2.4 GHz band social
4364 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
4365 * other preference is indicated.
b22128ef 4366 */
1595eb93
AM		 4367 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
4368 &p2p.op_channel) != 0) {
4369 wpa_printf(MSG_ERROR,
4370 "P2P: Failed to select random social channel as operation channel");
df2508d7 4371 return -1;
1595eb93 4372 }
7cfc4ac3
AGS		 4373 p2p.cfg_op_channel = 0;
4374 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
4375 "%d:%d", p2p.op_reg_class, p2p.op_channel);
b22128ef 4376 }
010b5f9b
YW		 4377
4378 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
4379 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
4380 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4381 }
4382
b22128ef
JM		 4383 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4384 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4385 p2p.country[2] = 0x04;
4386 } else
aaca6505 4387 os_memcpy(p2p.country, "XX\x04", 3);
b22128ef 4388
2f646b6e
JB		 4389 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4390 WPS_DEV_TYPE_LEN);
b22128ef 4391
2f646b6e
JB		 4392 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4393 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4394 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
b22128ef
JM		 4395
4396 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4397 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4398
de979d8f 4399 p2p.max_peers = 100;
b22128ef
JM		 4400
4401 if (wpa_s->conf->p2p_ssid_postfix) {
4402 p2p.ssid_postfix_len =
4403 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4404 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4405 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4406 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4407 p2p.ssid_postfix_len);
4408 }
4409
0f66abd2
SS		 4410 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4411
96beff11
JM		 4412 p2p.max_listen = wpa_s->max_remain_on_chan;
4413
1b928f96
JM		 4414 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4415 wpa_s->conf->p2p_passphrase_len <= 63)
4416 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4417 else
4418 p2p.passphrase_len = 8;
4419
b22128ef
JM		 4420 global->p2p = p2p_init(&p2p);
4421 if (global->p2p == NULL)
4422 return -1;
ab28911d 4423 global->p2p_init_wpa_s = wpa_s;
b22128ef 4424
f95cac27
JMB		 4425 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4426 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4427 continue;
4428 p2p_add_wps_vendor_extension(
4429 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4430 }
4431
556b30da
JM		 4432 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4433
b22128ef
JM		 4434 return 0;
4435}
4436
4437
4438/**
4439 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4440 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4441 *
4442 * This function deinitialize per-interface P2P data.
4443 */
4444void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4445{
4446 if (wpa_s->driver && wpa_s->drv_priv)
4447 wpa_drv_probe_req_report(wpa_s, 0);
ec437d9e
JJ		 4448
4449 if (wpa_s->go_params) {
4450 /* Clear any stored provisioning info */
4451 p2p_clear_provisioning_info(
4452 wpa_s->global->p2p,
10531d21 4453 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 4454 }
4455
b22128ef
JM		 4456 os_free(wpa_s->go_params);
4457 wpa_s->go_params = NULL;
fb2ac53d 4458 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
b22128ef 4459 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 4460 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 4461 wpa_s->p2p_long_listen = 0;
4462 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3071e181 4463 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
b22128ef 4464 wpas_p2p_remove_pending_group_interface(wpa_s);
8567866d 4465 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
e1d1c8e2 4466 wpas_p2p_listen_work_done(wpa_s);
e05e1308
JM		 4467 if (wpa_s->p2p_send_action_work) {
4468 os_free(wpa_s->p2p_send_action_work->ctx);
4469 radio_work_done(wpa_s->p2p_send_action_work);
4470 wpa_s->p2p_send_action_work = NULL;
4471 }
4472 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
b22128ef 4473
db6ae69e
JM		 4474 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4475 wpa_s->p2p_oob_dev_pw = NULL;
4476
20beb96f
IP		 4477 os_free(wpa_s->p2p_group_common_freqs);
4478 wpa_s->p2p_group_common_freqs = NULL;
4479 wpa_s->p2p_group_common_freqs_num = 0;
4480
b22128ef
JM		 4481 /* TODO: remove group interface from the driver if this wpa_s instance
4482 * is on top of a P2P group interface */
4483}
4484
4485
4486/**
4487 * wpas_p2p_deinit_global - Deinitialize global P2P module
4488 * @global: Pointer to global data from wpa_supplicant_init()
4489 *
4490 * This function deinitializes the global (per device) P2P module.
4491 */
bd10d938 4492static void wpas_p2p_deinit_global(struct wpa_global *global)
b22128ef
JM		 4493{
4494 struct wpa_supplicant *wpa_s, *tmp;
b22128ef 4495
bf428a73 4496 wpa_s = global->ifaces;
ee285df4
EA		 4497
4498 wpas_p2p_service_flush(global->p2p_init_wpa_s);
bf428a73 4499
b22128ef 4500 /* Remove remaining P2P group interfaces */
b22128ef
JM		 4501 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4502 wpa_s = wpa_s->next;
4503 while (wpa_s) {
b22128ef
JM		 4504 tmp = global->ifaces;
4505 while (tmp &&
4506 (tmp == wpa_s ||
4507 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4508 tmp = tmp->next;
4509 }
4510 if (tmp == NULL)
4511 break;
103b8f4d
NS		 4512 /* Disconnect from the P2P group and deinit the interface */
4513 wpas_p2p_disconnect(tmp);
b22128ef
JM		 4514 }
4515
743ef799
JM		 4516 /*
4517 * Deinit GO data on any possibly remaining interface (if main
4518 * interface is used as GO).
4519 */
4520 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4521 if (wpa_s->ap_iface)
4522 wpas_p2p_group_deinit(wpa_s);
4523 }
4524
b22128ef
JM		 4525 p2p_deinit(global->p2p);
4526 global->p2p = NULL;
ab28911d 4527 global->p2p_init_wpa_s = NULL;
b22128ef
JM		 4528}
4529
4530
4531static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4532{
bb4028f1
AS		 4533 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4534 wpa_s->conf->p2p_no_group_iface)
d76cd41a 4535 return 0; /* separate interface disabled per configuration */
971e357f
JM		 4536 if (wpa_s->drv_flags &
4537 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4538 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
b22128ef
JM		 4539 return 1; /* P2P group requires a new interface in every case
4540 */
4541 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4542 return 0; /* driver does not support concurrent operations */
4543 if (wpa_s->global->ifaces->next)
4544 return 1; /* more that one interface already in use */
4545 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4546 return 1; /* this interface is already in use */
4547 return 0;
4548}
4549
4550
4551static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4552 const u8 *peer_addr,
4553 enum p2p_wps_method wps_method,
4554 int go_intent, const u8 *own_interface_addr,
23c84252 4555 unsigned int force_freq, int persistent_group,
04a3e69d 4556 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 4557{
acc247b2
JM		 4558 if (persistent_group && wpa_s->conf->persistent_reconnect)
4559 persistent_group = 2;
4560
4f219667
JM		 4561 /*
4562 * Increase GO config timeout if HT40 is used since it takes some time
4563 * to scan channels for coex purposes before the BSS can be started.
4564 */
4565 p2p_set_config_timeout(wpa_s->global->p2p,
4566 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4567
b22128ef
JM		 4568 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4569 go_intent, own_interface_addr, force_freq,
23c84252 4570 persistent_group, ssid ? ssid->ssid : NULL,
3bc462cb 4571 ssid ? ssid->ssid_len : 0,
db6ae69e
JM		 4572 wpa_s->p2p_pd_before_go_neg, pref_freq,
4573 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4574 0);
b22128ef
JM		 4575}
4576
4577
4578static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4579 const u8 *peer_addr,
4580 enum p2p_wps_method wps_method,
4581 int go_intent, const u8 *own_interface_addr,
23c84252 4582 unsigned int force_freq, int persistent_group,
04a3e69d 4583 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 4584{
acc247b2
JM		 4585 if (persistent_group && wpa_s->conf->persistent_reconnect)
4586 persistent_group = 2;
4587
b22128ef
JM		 4588 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4589 go_intent, own_interface_addr, force_freq,
23c84252 4590 persistent_group, ssid ? ssid->ssid : NULL,
db6ae69e
JM		 4591 ssid ? ssid->ssid_len : 0, pref_freq,
4592 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4593 0);
b22128ef
JM		 4594}
4595
4596
9b1ab931
JM		 4597static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4598{
4599 wpa_s->p2p_join_scan_count++;
4600 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4601 wpa_s->p2p_join_scan_count);
4602 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4603 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4604 " for join operationg - stop join attempt",
4605 MAC2STR(wpa_s->pending_join_iface_addr));
4606 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
0918c4bf
JM		 4607 if (wpa_s->p2p_auto_pd) {
4608 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 4609 wpa_msg_global(wpa_s, MSG_INFO,
4610 P2P_EVENT_PROV_DISC_FAILURE
4611 " p2p_dev_addr=" MACSTR " status=N/A",
4612 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 4613 return;
4614 }
92c4465b
JM		 4615 wpa_msg_global(wpa_s->parent, MSG_INFO,
4616 P2P_EVENT_GROUP_FORMATION_FAILURE);
2a95fac9 4617 wpas_notify_p2p_group_formation_failure(wpa_s, "");
9b1ab931
JM		 4618 }
4619}
4620
4621
4b156206
JM		 4622static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4623{
a0c90bb0
IP		 4624 int res;
4625 unsigned int num, i;
4626 struct wpa_used_freq_data *freqs;
4b156206 4627
0d08efa4
IP		 4628 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4629 /* Multiple channels are supported and not all are in use */
4b156206 4630 return 0;
0d08efa4 4631 }
4b156206 4632
a0c90bb0
IP		 4633 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4634 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 4635 if (!freqs)
4636 return 1;
86ae2e8a 4637
0d08efa4
IP		 4638 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4639 wpa_s->num_multichan_concurrent);
4b156206 4640
0d08efa4 4641 for (i = 0; i < num; i++) {
a0c90bb0 4642 if (freqs[i].freq == freq) {
0d08efa4
IP		 4643 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4644 freq);
4645 res = 0;
4646 goto exit_free;
4647 }
4b156206
JM		 4648 }
4649
a0c90bb0 4650 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
0d08efa4
IP		 4651 res = 1;
4652
4653exit_free:
4654 os_free(freqs);
4655 return res;
4b156206
JM		 4656}
4657
4658
b31be3a0
JM		 4659static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4660 const u8 *peer_dev_addr)
4661{
4662 struct wpa_bss *bss;
4663 int updated;
4664
4665 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4666 if (bss == NULL)
aa9bb764 4667 return -1;
b31be3a0
JM		 4668 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4669 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4670 "last scan");
4671 return 0;
4672 }
4673
acb69cec
JB		 4674 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4675 &bss->last_update);
b31be3a0
JM		 4676 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4677 "%ld.%06ld (%supdated in last scan)",
4678 bss->last_update.sec, bss->last_update.usec,
4679 updated ? "": "not ");
4680
4681 return updated;
4682}
4683
4684
ef922c4a
JM		 4685static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4686 struct wpa_scan_results *scan_res)
b22128ef 4687{
c48414af 4688 struct wpa_bss *bss = NULL;
f8d0131a 4689 int freq;
54960629 4690 u8 iface_addr[ETH_ALEN];
b22128ef 4691
ef922c4a 4692 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 4693
ef922c4a
JM		 4694 if (wpa_s->global->p2p_disabled)
4695 return;
b22128ef 4696
b31be3a0
JM		 4697 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4698 scan_res ? (int) scan_res->num : -1,
4699 wpa_s->p2p_auto_join ? "auto_" : "");
ef922c4a
JM		 4700
4701 if (scan_res)
4702 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 4703
0918c4bf
JM		 4704 if (wpa_s->p2p_auto_pd) {
4705 int join = wpas_p2p_peer_go(wpa_s,
4706 wpa_s->pending_join_dev_addr);
84286a22
SDU		 4707 if (join == 0 &&
4708 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4709 wpa_s->auto_pd_scan_retry++;
702621e6
JM		 4710 bss = wpa_bss_get_bssid_latest(
4711 wpa_s, wpa_s->pending_join_dev_addr);
84286a22
SDU		 4712 if (bss) {
4713 freq = bss->freq;
4714 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4715 "the peer " MACSTR " at %d MHz",
4716 wpa_s->auto_pd_scan_retry,
4717 MAC2STR(wpa_s->
4718 pending_join_dev_addr),
4719 freq);
c48414af 4720 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
84286a22
SDU		 4721 return;
4722 }
4723 }
4724
aa9bb764
JM		 4725 if (join < 0)
4726 join = 0;
84286a22 4727
0918c4bf
JM		 4728 wpa_s->p2p_auto_pd = 0;
4729 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4730 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4731 MAC2STR(wpa_s->pending_join_dev_addr), join);
4732 if (p2p_prov_disc_req(wpa_s->global->p2p,
369678ad 4733 wpa_s->pending_join_dev_addr, NULL,
0918c4bf 4734 wpa_s->pending_pd_config_methods, join,
67527166 4735 0, wpa_s->user_initiated_pd) < 0) {
0918c4bf 4736 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 4737 wpa_msg_global(wpa_s, MSG_INFO,
4738 P2P_EVENT_PROV_DISC_FAILURE
4739 " p2p_dev_addr=" MACSTR " status=N/A",
4740 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 4741 }
4742 return;
4743 }
4744
b31be3a0 4745 if (wpa_s->p2p_auto_join) {
aa9bb764
JM		 4746 int join = wpas_p2p_peer_go(wpa_s,
4747 wpa_s->pending_join_dev_addr);
4748 if (join < 0) {
b31be3a0
JM		 4749 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4750 "running a GO -> use GO Negotiation");
6b005121
JM		 4751 wpa_msg_global(wpa_s->parent, MSG_INFO,
4752 P2P_EVENT_FALLBACK_TO_GO_NEG
4753 "reason=peer-not-running-GO");
b31be3a0
JM		 4754 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4755 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4756 wpa_s->p2p_persistent_group, 0, 0, 0,
4757 wpa_s->p2p_go_intent,
23c84252 4758 wpa_s->p2p_connect_freq,
3bc462cb 4759 wpa_s->p2p_persistent_id,
e2308e4b 4760 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 4761 wpa_s->p2p_go_ht40,
4762 wpa_s->p2p_go_vht);
b31be3a0
JM		 4763 return;
4764 }
4765
aa9bb764
JM		 4766 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4767 "try to join the group", join ? "" :
4768 " in older scan");
6b005121
JM		 4769 if (!join) {
4770 wpa_msg_global(wpa_s->parent, MSG_INFO,
4771 P2P_EVENT_FALLBACK_TO_GO_NEG_ENABLED);
aa9bb764 4772 wpa_s->p2p_fallback_to_go_neg = 1;
6b005121 4773 }
b31be3a0
JM		 4774 }
4775
f8d0131a
JM		 4776 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4777 wpa_s->pending_join_iface_addr);
54960629
AL		 4778 if (freq < 0 &&
4779 p2p_get_interface_addr(wpa_s->global->p2p,
4780 wpa_s->pending_join_dev_addr,
4781 iface_addr) == 0 &&
4e536751
CM		 4782 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4783 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
54960629
AL		 4784 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4785 "address for join from " MACSTR " to " MACSTR
4786 " based on newly discovered P2P peer entry",
4787 MAC2STR(wpa_s->pending_join_iface_addr),
4788 MAC2STR(iface_addr));
4789 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4790 ETH_ALEN);
4791
4792 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4793 wpa_s->pending_join_iface_addr);
4794 }
f8d0131a
JM		 4795 if (freq >= 0) {
4796 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4797 "from P2P peer table: %d MHz", freq);
4798 }
c48414af
JM		 4799 if (wpa_s->p2p_join_ssid_len) {
4800 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4801 MACSTR " and SSID %s",
4802 MAC2STR(wpa_s->pending_join_iface_addr),
4803 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4804 wpa_s->p2p_join_ssid_len));
4805 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4806 wpa_s->p2p_join_ssid,
4807 wpa_s->p2p_join_ssid_len);
4808 }
4809 if (!bss) {
4810 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4811 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4812 bss = wpa_bss_get_bssid_latest(wpa_s,
4813 wpa_s->pending_join_iface_addr);
4814 }
b22128ef 4815 if (bss) {
e6012e83
JM		 4816 u8 dev_addr[ETH_ALEN];
4817
f8d0131a
JM		 4818 freq = bss->freq;
4819 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
d2858883
JM		 4820 "from BSS table: %d MHz (SSID %s)", freq,
4821 wpa_ssid_txt(bss->ssid, bss->ssid_len));
e6012e83
JM		 4822 if (p2p_parse_dev_addr((const u8 *) (bss + 1), bss->ie_len,
4823 dev_addr) == 0 &&
4824 os_memcmp(wpa_s->pending_join_dev_addr,
4825 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0 &&
4826 os_memcmp(dev_addr, wpa_s->pending_join_dev_addr,
4827 ETH_ALEN) != 0) {
4828 wpa_printf(MSG_DEBUG,
4829 "P2P: Update target GO device address based on BSS entry: " MACSTR " (was " MACSTR ")",
4830 MAC2STR(dev_addr),
4831 MAC2STR(wpa_s->pending_join_dev_addr));
4832 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr,
4833 ETH_ALEN);
4834 }
f8d0131a
JM		 4835 }
4836 if (freq > 0) {
b22128ef
JM		 4837 u16 method;
4838
4b156206 4839 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
92c4465b
JM		 4840 wpa_msg_global(wpa_s->parent, MSG_INFO,
4841 P2P_EVENT_GROUP_FORMATION_FAILURE
4842 "reason=FREQ_CONFLICT");
2a95fac9
NC		 4843 wpas_notify_p2p_group_formation_failure(
4844 wpa_s, "FREQ_CONFLICT");
4b156206
JM		 4845 return;
4846 }
4847
b22128ef
JM		 4848 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4849 "prior to joining an existing group (GO " MACSTR
4850 " freq=%u MHz)",
f8d0131a 4851 MAC2STR(wpa_s->pending_join_dev_addr), freq);
b22128ef
JM		 4852 wpa_s->pending_pd_before_join = 1;
4853
ef922c4a 4854 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 4855 case WPS_PIN_DISPLAY:
4856 method = WPS_CONFIG_KEYPAD;
4857 break;
4858 case WPS_PIN_KEYPAD:
4859 method = WPS_CONFIG_DISPLAY;
4860 break;
4861 case WPS_PBC:
4862 method = WPS_CONFIG_PUSHBUTTON;
4863 break;
d494ca0b
AO		 4864 case WPS_P2PS:
4865 method = WPS_CONFIG_P2PS;
4866 break;
b22128ef
JM		 4867 default:
4868 method = 0;
4869 break;
4870 }
4871
ec437d9e
JJ		 4872 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4873 wpa_s->pending_join_dev_addr) ==
4874 method)) {
4875 /*
4876 * We have already performed provision discovery for
4877 * joining the group. Proceed directly to join
4878 * operation without duplicated provision discovery. */
e3a0706b 4879 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
ec437d9e
JJ		 4880 "with " MACSTR " already done - proceed to "
4881 "join",
4882 MAC2STR(wpa_s->pending_join_dev_addr));
4883 wpa_s->pending_pd_before_join = 0;
4884 goto start;
4885 }
4886
ef922c4a 4887 if (p2p_prov_disc_req(wpa_s->global->p2p,
369678ad
KV		 4888 wpa_s->pending_join_dev_addr,
4889 NULL, method, 1,
67527166 4890 freq, wpa_s->user_initiated_pd) < 0) {
b22128ef
JM		 4891 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4892 "Discovery Request before joining an "
4893 "existing group");
4894 wpa_s->pending_pd_before_join = 0;
4895 goto start;
4896 }
ef922c4a 4897 return;
b22128ef
JM		 4898 }
4899
9b1ab931
JM		 4900 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4901 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4902 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4903 wpas_p2p_check_join_scan_limit(wpa_s);
4904 return;
b22128ef
JM		 4905
4906start:
4907 /* Start join operation immediately */
23318bea 4908 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
ef922c4a
JM		 4909}
4910
4911
c48414af
JM		 4912static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4913 const u8 *ssid, size_t ssid_len)
ef922c4a 4914{
ef922c4a
JM		 4915 int ret;
4916 struct wpa_driver_scan_params params;
4917 struct wpabuf *wps_ie, *ies;
206e1f42 4918 size_t ielen;
84286a22 4919 int freqs[2] = { 0, 0 };
ef922c4a
JM		 4920
4921 os_memset(&params, 0, sizeof(params));
4922
4923 /* P2P Wildcard SSID */
4924 params.num_ssids = 1;
c48414af
JM		 4925 if (ssid && ssid_len) {
4926 params.ssids[0].ssid = ssid;
4927 params.ssids[0].ssid_len = ssid_len;
4928 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4929 wpa_s->p2p_join_ssid_len = ssid_len;
4930 } else {
4931 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4932 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4933 wpa_s->p2p_join_ssid_len = 0;
4934 }
ef922c4a
JM		 4935
4936 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 4937 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4938 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4939 NULL);
ef922c4a
JM		 4940 if (wps_ie == NULL) {
4941 wpas_p2p_scan_res_join(wpa_s, NULL);
4942 return;
4943 }
4944
206e1f42
JM		 4945 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4946 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
ef922c4a
JM		 4947 if (ies == NULL) {
4948 wpabuf_free(wps_ie);
4949 wpas_p2p_scan_res_join(wpa_s, NULL);
4950 return;
4951 }
4952 wpabuf_put_buf(ies, wps_ie);
4953 wpabuf_free(wps_ie);
4954
6d92fa6e 4955 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
ef922c4a 4956
47185fc7 4957 params.p2p_probe = 1;
ef922c4a
JM		 4958 params.extra_ies = wpabuf_head(ies);
4959 params.extra_ies_len = wpabuf_len(ies);
37b4198a
JJ		 4960
4961 if (!freq) {
4962 int oper_freq;
4963 /*
4964 * If freq is not provided, check the operating freq of the GO
4965 * and use a single channel scan on if possible.
4966 */
4967 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4968 wpa_s->pending_join_iface_addr);
4969 if (oper_freq > 0)
4970 freq = oper_freq;
4971 }
84286a22
SDU		 4972 if (freq > 0) {
4973 freqs[0] = freq;
4974 params.freqs = freqs;
4975 }
ef922c4a
JM		 4976
4977 /*
4978 * Run a scan to update BSS table and start Provision Discovery once
4979 * the new scan results become available.
4980 */
17fbb751 4981 ret = wpa_drv_scan(wpa_s, &params);
4342326f 4982 if (!ret) {
acb69cec 4983 os_get_reltime(&wpa_s->scan_trigger_time);
205e6474 4984 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
a5f40eff 4985 wpa_s->own_scan_requested = 1;
4342326f 4986 }
ef922c4a
JM		 4987
4988 wpabuf_free(ies);
4989
4990 if (ret) {
4991 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4992 "try again later");
4993 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4994 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
9b1ab931 4995 wpas_p2p_check_join_scan_limit(wpa_s);
ef922c4a
JM		 4996 }
4997}
4998
4999
84286a22
SDU		 5000static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
5001{
5002 struct wpa_supplicant *wpa_s = eloop_ctx;
c48414af 5003 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
84286a22
SDU		 5004}
5005
5006
ef922c4a 5007static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0 5008 const u8 *dev_addr, enum p2p_wps_method wps_method,
23318bea
JM		 5009 int auto_join, int op_freq,
5010 const u8 *ssid, size_t ssid_len)
ef922c4a
JM		 5011{
5012 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
23318bea
JM		 5013 MACSTR " dev " MACSTR " op_freq=%d)%s",
5014 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
b31be3a0 5015 auto_join ? " (auto_join)" : "");
c48414af
JM		 5016 if (ssid && ssid_len) {
5017 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
5018 wpa_ssid_txt(ssid, ssid_len));
5019 }
ef922c4a 5020
0918c4bf 5021 wpa_s->p2p_auto_pd = 0;
b31be3a0 5022 wpa_s->p2p_auto_join = !!auto_join;
ef922c4a
JM		 5023 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
5024 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
5025 wpa_s->pending_join_wps_method = wps_method;
5026
5027 /* Make sure we are not running find during connection establishment */
5028 wpas_p2p_stop_find(wpa_s);
5029
9b1ab931 5030 wpa_s->p2p_join_scan_count = 0;
23318bea 5031 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
ef922c4a 5032 return 0;
b22128ef
JM		 5033}
5034
5035
23318bea
JM		 5036static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
5037 const u8 *ssid, size_t ssid_len)
b22128ef
JM		 5038{
5039 struct wpa_supplicant *group;
5040 struct p2p_go_neg_results res;
8e64f258 5041 struct wpa_bss *bss;
b22128ef
JM		 5042
5043 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
5044 if (group == NULL)
5045 return -1;
3c5126a4 5046 if (group != wpa_s) {
b22128ef
JM		 5047 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
5048 sizeof(group->p2p_pin));
3c5126a4 5049 group->p2p_wps_method = wpa_s->p2p_wps_method;
2b79164f
JM		 5050 } else {
5051 /*
5052 * Need to mark the current interface for p2p_group_formation
5053 * when a separate group interface is not used. This is needed
5054 * to allow p2p_cancel stop a pending p2p_connect-join.
5055 * wpas_p2p_init_group_interface() addresses this for the case
5056 * where a separate group interface is used.
5057 */
5058 wpa_s->global->p2p_group_formation = wpa_s;
3c5126a4 5059 }
b22128ef
JM		 5060
5061 group->p2p_in_provisioning = 1;
aa9bb764 5062 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
b22128ef
JM		 5063
5064 os_memset(&res, 0, sizeof(res));
23318bea 5065 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
b22128ef
JM		 5066 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
5067 ETH_ALEN);
5068 res.wps_method = wpa_s->pending_join_wps_method;
23318bea
JM		 5069 if (freq && ssid && ssid_len) {
5070 res.freq = freq;
5071 res.ssid_len = ssid_len;
5072 os_memcpy(res.ssid, ssid, ssid_len);
5073 } else {
5074 bss = wpa_bss_get_bssid_latest(wpa_s,
5075 wpa_s->pending_join_iface_addr);
5076 if (bss) {
5077 res.freq = bss->freq;
5078 res.ssid_len = bss->ssid_len;
5079 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
5080 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
5081 bss->freq,
5082 wpa_ssid_txt(bss->ssid, bss->ssid_len));
5083 }
8e64f258
JM		 5084 }
5085
e91829f9
JM		 5086 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
5087 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
5088 "starting client");
5089 wpa_drv_cancel_remain_on_channel(wpa_s);
5090 wpa_s->off_channel_freq = 0;
5091 wpa_s->roc_waiting_drv_freq = 0;
5092 }
b22128ef
JM		 5093 wpas_start_wps_enrollee(group, &res);
5094
3094d483
JM		 5095 /*
5096 * Allow a longer timeout for join-a-running-group than normal 15
5097 * second group formation timeout since the GO may not have authorized
5098 * our connection yet.
5099 */
5100 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
5101 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
5102 wpa_s, NULL);
5103
b22128ef
JM		 5104 return 0;
5105}
5106
5107
5de4b721 5108static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
370017d9
AK		 5109 int *force_freq, int *pref_freq, int go,
5110 unsigned int *pref_freq_list,
5111 unsigned int *num_pref_freq)
5de4b721 5112{
a0c90bb0
IP		 5113 struct wpa_used_freq_data *freqs;
5114 int res, best_freq, num_unused;
370017d9
AK		 5115 unsigned int freq_in_use = 0, num, i, max_pref_freq;
5116
5117 max_pref_freq = *num_pref_freq;
5118 *num_pref_freq = 0;
0d08efa4 5119
a0c90bb0
IP		 5120 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5121 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 5122 if (!freqs)
5123 return -1;
5124
a0c90bb0
IP		 5125 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
5126 wpa_s->num_multichan_concurrent);
5127
5128 /*
5129 * It is possible that the total number of used frequencies is bigger
5130 * than the number of frequencies used for P2P, so get the system wide
5131 * number of unused frequencies.
5132 */
5133 num_unused = wpas_p2p_num_unused_channels(wpa_s);
5134
99d7c762 5135 wpa_printf(MSG_DEBUG,
a0c90bb0
IP		 5136 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
5137 freq, wpa_s->num_multichan_concurrent, num, num_unused);
0d08efa4 5138
5de4b721 5139 if (freq > 0) {
51e9f228
JM		 5140 int ret;
5141 if (go)
5142 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
5143 else
5144 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
5145 if (!ret) {
d7f1aa8f
AK		 5146 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5147 ieee80211_is_dfs(freq)) {
5148 /*
5149 * If freq is a DFS channel and DFS is offloaded
5150 * to the driver, allow P2P GO to use it.
5151 */
5152 wpa_printf(MSG_DEBUG,
5153 "P2P: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to the driver",
5154 freq);
5155 } else {
5156 wpa_printf(MSG_DEBUG,
5157 "P2P: The forced channel (%u MHz) is not supported for P2P uses",
5158 freq);
5159 res = -3;
5160 goto exit_free;
5161 }
5de4b721
JM		 5162 }
5163
0d08efa4 5164 for (i = 0; i < num; i++) {
a0c90bb0 5165 if (freqs[i].freq == freq)
0d08efa4
IP		 5166 freq_in_use = 1;
5167 }
5168
a0c90bb0 5169 if (num_unused <= 0 && !freq_in_use) {
0d08efa4
IP		 5170 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
5171 freq);
5172 res = -2;
5173 goto exit_free;
5de4b721
JM		 5174 }
5175 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
5176 "requested channel (%u MHz)", freq);
5177 *force_freq = freq;
0d08efa4
IP		 5178 goto exit_ok;
5179 }
5180
a0c90bb0 5181 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
0d08efa4 5182
370017d9
AK		 5183 if (!wpa_s->conf->num_p2p_pref_chan && *pref_freq == 0) {
5184 enum wpa_driver_if_type iface_type;
5185
5186 if (go)
5187 iface_type = WPA_IF_P2P_GO;
5188 else
5189 iface_type = WPA_IF_P2P_CLIENT;
5190
5191 wpa_printf(MSG_DEBUG, "P2P: best_freq=%d, go=%d",
5192 best_freq, go);
5193
5194 res = wpa_drv_get_pref_freq_list(wpa_s, iface_type,
5195 &max_pref_freq,
5196 pref_freq_list);
5197 if (!res && max_pref_freq > 0) {
5198 *num_pref_freq = max_pref_freq;
5199 i = 0;
5200 while (wpas_p2p_disallowed_freq(wpa_s->global,
5201 pref_freq_list[i]) &&
5202 i < *num_pref_freq) {
5203 wpa_printf(MSG_DEBUG,
5204 "P2P: preferred_freq_list[%d]=%d is disallowed",
5205 i, pref_freq_list[i]);
5206 i++;
5207 }
5208 if (i != *num_pref_freq) {
5209 best_freq = pref_freq_list[i];
5210 wpa_printf(MSG_DEBUG,
5211 "P2P: Using preferred_freq_list[%d]=%d",
5212 i, best_freq);
5213 } else {
5214 wpa_printf(MSG_DEBUG,
5215 "P2P: All driver preferred frequencies are disallowed for P2P use");
5216 *num_pref_freq = 0;
5217 }
5218 } else {
5219 wpa_printf(MSG_DEBUG,
5220 "P2P: No preferred frequency list available");
5221 }
5222 }
5223
a0c90bb0
IP		 5224 /* We have a candidate frequency to use */
5225 if (best_freq > 0) {
5226 if (*pref_freq == 0 && num_unused > 0) {
b17d89bd 5227 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
a0c90bb0
IP		 5228 best_freq);
5229 *pref_freq = best_freq;
b17d89bd
JM		 5230 } else {
5231 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
a0c90bb0
IP		 5232 best_freq);
5233 *force_freq = best_freq;
0d08efa4 5234 }
a0c90bb0
IP		 5235 } else if (num_unused > 0) {
5236 wpa_printf(MSG_DEBUG,
5237 "P2P: Current operating channels are not available for P2P. Try to use another channel");
5238 *force_freq = 0;
5239 } else {
5240 wpa_printf(MSG_DEBUG,
5241 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
5242 res = -2;
5243 goto exit_free;
0d08efa4
IP		 5244 }
5245
5246exit_ok:
5247 res = 0;
5248exit_free:
5249 os_free(freqs);
5250 return res;
5de4b721
JM		 5251}
5252
5253
b22128ef
JM		 5254/**
5255 * wpas_p2p_connect - Request P2P Group Formation to be started
5256 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5257 * @peer_addr: Address of the peer P2P Device
5258 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
5259 * @persistent_group: Whether to create a persistent group
b31be3a0 5260 * @auto_join: Whether to select join vs. GO Negotiation automatically
b22128ef
JM		 5261 * @join: Whether to join an existing group (as a client) instead of starting
5262 * Group Owner negotiation; @peer_addr is BSSID in that case
5263 * @auth: Whether to only authorize the connection instead of doing that and
5264 * initiating Group Owner negotiation
5265 * @go_intent: GO Intent or -1 to use default
5266 * @freq: Frequency for the group or 0 for auto-selection
23c84252
JM		 5267 * @persistent_id: Persistent group credentials to use for forcing GO
5268 * parameters or -1 to generate new values (SSID/passphrase)
3bc462cb
JM		 5269 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
5270 * interoperability workaround when initiating group formation
e2308e4b 5271 * @ht40: Start GO with 40 MHz channel width
20ea1ca4 5272 * @vht: Start GO with VHT support
d054a462
JM		 5273 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
5274 * failure, -2 on failure due to channel not currently available,
5275 * -3 if forced channel is not supported
b22128ef
JM		 5276 */
5277int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5278 const char *pin, enum p2p_wps_method wps_method,
b31be3a0 5279 int persistent_group, int auto_join, int join, int auth,
e2308e4b 5280 int go_intent, int freq, int persistent_id, int pd,
20ea1ca4 5281 int ht40, int vht)
b22128ef 5282{
0d08efa4 5283 int force_freq = 0, pref_freq = 0;
5de4b721 5284 int ret = 0, res;
b22128ef 5285 enum wpa_driver_if_type iftype;
6cad95db 5286 const u8 *if_addr;
23c84252 5287 struct wpa_ssid *ssid = NULL;
370017d9 5288 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
b22128ef 5289
9526fd29
JM		 5290 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5291 return -1;
5292
23c84252
JM		 5293 if (persistent_id >= 0) {
5294 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
5295 if (ssid == NULL || ssid->disabled != 2 ||
5296 ssid->mode != WPAS_MODE_P2P_GO)
5297 return -1;
5298 }
5299
01a57fe4
JM		 5300 os_free(wpa_s->global->add_psk);
5301 wpa_s->global->add_psk = NULL;
5302
95fb2db2 5303 wpa_s->global->p2p_fail_on_wps_complete = 0;
9a58e521 5304 wpa_s->global->pending_p2ps_group = 0;
8bb8e6ed 5305 wpa_s->global->pending_p2ps_group_freq = 0;
b9da88d6 5306 wpa_s->p2ps_method_config_any = 0;
95fb2db2 5307
b22128ef
JM		 5308 if (go_intent < 0)
5309 go_intent = wpa_s->conf->p2p_go_intent;
5310
5311 if (!auth)
5312 wpa_s->p2p_long_listen = 0;
5313
3c5126a4 5314 wpa_s->p2p_wps_method = wps_method;
b31be3a0 5315 wpa_s->p2p_persistent_group = !!persistent_group;
23c84252 5316 wpa_s->p2p_persistent_id = persistent_id;
b31be3a0
JM		 5317 wpa_s->p2p_go_intent = go_intent;
5318 wpa_s->p2p_connect_freq = freq;
aa9bb764 5319 wpa_s->p2p_fallback_to_go_neg = 0;
3bc462cb 5320 wpa_s->p2p_pd_before_go_neg = !!pd;
e2308e4b 5321 wpa_s->p2p_go_ht40 = !!ht40;
20ea1ca4 5322 wpa_s->p2p_go_vht = !!vht;
3c5126a4 5323
b22128ef
JM		 5324 if (pin)
5325 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
5326 else if (wps_method == WPS_PIN_DISPLAY) {
5327 ret = wps_generate_pin();
1d399771
JM		 5328 res = os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin),
5329 "%08d", ret);
5330 if (os_snprintf_error(sizeof(wpa_s->p2p_pin), res))
5331 wpa_s->p2p_pin[sizeof(wpa_s->p2p_pin) - 1] = '\0';
b22128ef
JM		 5332 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
5333 wpa_s->p2p_pin);
5334 } else
5335 wpa_s->p2p_pin[0] = '\0';
5336
b31be3a0 5337 if (join || auto_join) {
4147a2cc 5338 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
108def93
JM		 5339 if (auth) {
5340 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
5341 "connect a running group from " MACSTR,
5342 MAC2STR(peer_addr));
5343 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5344 return ret;
5345 }
4147a2cc 5346 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
b22128ef 5347 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4147a2cc 5348 iface_addr) < 0) {
b22128ef 5349 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4147a2cc
JM		 5350 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
5351 dev_addr);
5352 }
b31be3a0 5353 if (auto_join) {
acb69cec 5354 os_get_reltime(&wpa_s->p2p_auto_started);
b31be3a0
JM		 5355 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
5356 "%ld.%06ld",
5357 wpa_s->p2p_auto_started.sec,
5358 wpa_s->p2p_auto_started.usec);
5359 }
67527166 5360 wpa_s->user_initiated_pd = 1;
b31be3a0 5361 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
23318bea 5362 auto_join, freq, NULL, 0) < 0)
b22128ef
JM		 5363 return -1;
5364 return ret;
5365 }
5366
370017d9 5367 size = P2P_MAX_PREF_CHANNELS;
51e9f228 5368 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
370017d9 5369 go_intent == 15, pref_freq_list, &size);
5de4b721
JM		 5370 if (res)
5371 return res;
1b665cbf
JM		 5372 wpas_p2p_set_own_freq_preference(wpa_s,
5373 force_freq ? force_freq : pref_freq);
b22128ef 5374
370017d9
AK		 5375 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
5376
b22128ef
JM		 5377 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
5378
6cad95db
JB		 5379 if (wpa_s->create_p2p_iface) {
5380 /* Prepare to add a new interface for the group */
5381 iftype = WPA_IF_P2P_GROUP;
5382 if (go_intent == 15)
5383 iftype = WPA_IF_P2P_GO;
5384 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
5385 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
5386 "interface for the group");
b22128ef 5387 return -1;
6cad95db 5388 }
b22128ef 5389
6cad95db 5390 if_addr = wpa_s->pending_interface_addr;
9f59fe8d 5391 } else {
6cad95db 5392 if_addr = wpa_s->own_addr;
9f59fe8d
JM		 5393 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
5394 }
b22128ef
JM		 5395
5396 if (auth) {
5397 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
6cad95db 5398 go_intent, if_addr,
04a3e69d
JM		 5399 force_freq, persistent_group, ssid,
5400 pref_freq) < 0)
b22128ef
JM		 5401 return -1;
5402 return ret;
5403 }
6cad95db
JB		 5404
5405 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
5406 go_intent, if_addr, force_freq,
04a3e69d 5407 persistent_group, ssid, pref_freq) < 0) {
6cad95db
JB		 5408 if (wpa_s->create_p2p_iface)
5409 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 5410 return -1;
5411 }
5412 return ret;
5413}
5414
5415
5416/**
5417 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
5418 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5419 * @freq: Frequency of the channel in MHz
5420 * @duration: Duration of the stay on the channel in milliseconds
5421 *
5422 * This callback is called when the driver indicates that it has started the
5423 * requested remain-on-channel duration.
5424 */
5425void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5426 unsigned int freq, unsigned int duration)
5427{
9526fd29
JM		 5428 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5429 return;
f2dc06e2
JM		 5430 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)",
5431 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5432 wpa_s->roc_waiting_drv_freq, freq, duration);
5433 if (wpa_s->off_channel_freq &&
5434 wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
b22128ef
JM		 5435 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
5436 wpa_s->pending_listen_duration);
5437 wpa_s->pending_listen_freq = 0;
211d7ab3
JM		 5438 } else {
5439 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
5440 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
5441 freq, duration);
b22128ef
JM		 5442 }
5443}
5444
5445
49e1e9ca 5446int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s, unsigned int timeout)
b22128ef
JM		 5447{
5448 /* Limit maximum Listen state time based on driver limitation. */
5449 if (timeout > wpa_s->max_remain_on_chan)
5450 timeout = wpa_s->max_remain_on_chan;
5451
5452 return p2p_listen(wpa_s->global->p2p, timeout);
5453}
5454
5455
5456/**
5457 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
5458 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5459 * @freq: Frequency of the channel in MHz
5460 *
5461 * This callback is called when the driver indicates that a remain-on-channel
5462 * operation has been completed, i.e., the duration on the requested channel
5463 * has timed out.
5464 */
5465void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
5466 unsigned int freq)
5467{
1cc3a29d 5468 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
11fb02be 5469 "(p2p_long_listen=%d ms pending_action_tx=%p)",
2f3101d8 5470 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
e1d1c8e2 5471 wpas_p2p_listen_work_done(wpa_s);
9526fd29
JM		 5472 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5473 return;
49e1e9ca
JJ		 5474 if (wpa_s->p2p_long_listen > 0)
5475 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
b22128ef
JM		 5476 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
5477 return; /* P2P module started a new operation */
2f3101d8 5478 if (offchannel_pending_action_tx(wpa_s))
b22128ef 5479 return;
b22128ef
JM		 5480 if (wpa_s->p2p_long_listen > 0) {
5481 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
11fb02be 5482 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
0b5fb86a
SADR		 5483 } else {
5484 /*
5485 * When listen duration is over, stop listen & update p2p_state
5486 * to IDLE.
5487 */
5488 p2p_stop_listen(wpa_s->global->p2p);
b22128ef
JM		 5489 }
5490}
5491
5492
5493/**
5494 * wpas_p2p_group_remove - Remove a P2P group
5495 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5496 * @ifname: Network interface name of the group interface or "*" to remove all
5497 * groups
5498 * Returns: 0 on success, -1 on failure
5499 *
5500 * This function is used to remove a P2P group. This can be used to disconnect
5501 * from a group in which the local end is a P2P Client or to end a P2P Group in
5502 * case the local end is the Group Owner. If a virtual network interface was
5503 * created for this group, that interface will be removed. Otherwise, only the
5504 * configured P2P group network will be removed from the interface.
5505 */
5506int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5507{
5508 struct wpa_global *global = wpa_s->global;
f2b3acc9 5509 struct wpa_supplicant *calling_wpa_s = wpa_s;
b22128ef
JM		 5510
5511 if (os_strcmp(ifname, "*") == 0) {
5512 struct wpa_supplicant *prev;
5513 wpa_s = global->ifaces;
5514 while (wpa_s) {
5515 prev = wpa_s;
5516 wpa_s = wpa_s->next;
d99ca89d
IP		 5517 if (prev->p2p_group_interface !=
5518 NOT_P2P_GROUP_INTERFACE ||
5519 (prev->current_ssid &&
5520 prev->current_ssid->p2p_group))
f2b3acc9 5521 wpas_p2p_disconnect_safely(prev, calling_wpa_s);
b22128ef
JM		 5522 }
5523 return 0;
5524 }
5525
5526 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5527 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5528 break;
5529 }
5530
f2b3acc9 5531 return wpas_p2p_disconnect_safely(wpa_s, calling_wpa_s);
b22128ef
JM		 5532}
5533
5534
4abc0424
WJL		 5535static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5536{
5537 unsigned int r;
5538
8e84921e
AK		 5539 if (!wpa_s->conf->num_p2p_pref_chan && !freq) {
5540 unsigned int i, size = P2P_MAX_PREF_CHANNELS;
5541 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS];
5542 int res;
5543
5544 res = wpa_drv_get_pref_freq_list(wpa_s, WPA_IF_P2P_GO,
5545 &size, pref_freq_list);
5546 if (!res && size > 0) {
5547 i = 0;
5548 while (wpas_p2p_disallowed_freq(wpa_s->global,
5549 pref_freq_list[i]) &&
5550 i < size) {
5551 wpa_printf(MSG_DEBUG,
5552 "P2P: preferred_freq_list[%d]=%d is disallowed",
5553 i, pref_freq_list[i]);
5554 i++;
5555 }
5556 if (i != size) {
5557 freq = pref_freq_list[i];
5558 wpa_printf(MSG_DEBUG,
5559 "P2P: Using preferred_freq_list[%d]=%d",
5560 i, freq);
5561 } else {
5562 wpa_printf(MSG_DEBUG,
5563 "P2P: All driver preferred frequencies are disallowed for P2P use");
5564 }
5565 } else {
5566 wpa_printf(MSG_DEBUG,
5567 "P2P: No preferred frequency list available");
5568 }
5569 }
5570
4abc0424
WJL		 5571 if (freq == 2) {
5572 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5573 "band");
5574 if (wpa_s->best_24_freq > 0 &&
556b30da
JM		 5575 p2p_supported_freq_go(wpa_s->global->p2p,
5576 wpa_s->best_24_freq)) {
4abc0424
WJL		 5577 freq = wpa_s->best_24_freq;
5578 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5579 "channel: %d MHz", freq);
5580 } else {
df2508d7
JM		 5581 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5582 return -1;
4abc0424
WJL		 5583 freq = 2412 + (r % 3) * 25;
5584 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5585 "channel: %d MHz", freq);
5586 }
5587 }
5588
5589 if (freq == 5) {
5590 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5591 "band");
5592 if (wpa_s->best_5_freq > 0 &&
556b30da 5593 p2p_supported_freq_go(wpa_s->global->p2p,
4abc0424
WJL		 5594 wpa_s->best_5_freq)) {
5595 freq = wpa_s->best_5_freq;
5596 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5597 "channel: %d MHz", freq);
5598 } else {
df2508d7
JM		 5599 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5600 return -1;
4abc0424 5601 freq = 5180 + (r % 4) * 20;
556b30da 5602 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4abc0424
WJL		 5603 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5604 "5 GHz channel for P2P group");
5605 return -1;
5606 }
5607 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5608 "channel: %d MHz", freq);
5609 }
5610 }
5611
556b30da 5612 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
d7f1aa8f
AK		 5613 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5614 ieee80211_is_dfs(freq)) {
5615 /*
5616 * If freq is a DFS channel and DFS is offloaded to the
5617 * driver, allow P2P GO to use it.
5618 */
5619 wpa_printf(MSG_DEBUG, "P2P: "
5620 "%s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded",
5621 __func__, freq);
5622 return freq;
5623 }
4abc0424
WJL		 5624 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5625 "(%u MHz) is not supported for P2P uses",
5626 freq);
5627 return -1;
5628 }
5629
5630 return freq;
5631}
5632
5633
b1308121
IP		 5634static int wpas_p2p_supported_freq_go(struct wpa_supplicant *wpa_s,
5635 const struct p2p_channels *channels,
5636 int freq)
5637{
5638 if (!wpas_p2p_disallowed_freq(wpa_s->global, freq) &&
5639 p2p_supported_freq_go(wpa_s->global->p2p, freq) &&
5640 freq_included(wpa_s, channels, freq))
5641 return 1;
5642 return 0;
5643}
5644
5645
5646static void wpas_p2p_select_go_freq_no_pref(struct wpa_supplicant *wpa_s,
5647 struct p2p_go_neg_results *params,
5648 const struct p2p_channels *channels)
28812a89
IP		 5649{
5650 unsigned int i, r;
5651
5652 /* first try some random selection of the social channels */
5e62cfdf 5653 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
b1308121 5654 return;
28812a89
IP		 5655
5656 for (i = 0; i < 3; i++) {
5657 params->freq = 2412 + ((r + i) % 3) * 25;
b1308121 5658 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
28812a89
IP		 5659 goto out;
5660 }
5661
b1308121 5662 /* try all other channels in operating class 81 */
28812a89
IP		 5663 for (i = 0; i < 11; i++) {
5664 params->freq = 2412 + i * 5;
b1308121
IP		 5665
5666 /* skip social channels; covered in the previous loop */
5667 if (params->freq == 2412 ||
5668 params->freq == 2437 ||
5669 params->freq == 2462)
5670 continue;
5671
5672 if (wpas_p2p_supported_freq_go(wpa_s, channels, params->freq))
1595eb93
AM		 5673 goto out;
5674 }
5675
95d7b863
KV		 5676 /* try all channels in operating class 115 */
5677 for (i = 0; i < 4; i++) {
5678 params->freq = 5180 + i * 20;
5679 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5680 freq_included(wpa_s, channels, params->freq) &&
95d7b863
KV		 5681 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5682 goto out;
5683 }
5684
5685 /* try all channels in operating class 124 */
5686 for (i = 0; i < 4; i++) {
5687 params->freq = 5745 + i * 20;
5688 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5689 freq_included(wpa_s, channels, params->freq) &&
95d7b863
KV		 5690 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5691 goto out;
5692 }
5693
1595eb93
AM		 5694 /* try social channel class 180 channel 2 */
5695 params->freq = 58320 + 1 * 2160;
5696 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5697 freq_included(wpa_s, channels, params->freq) &&
1595eb93
AM		 5698 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5699 goto out;
5700
5701 /* try all channels in reg. class 180 */
5702 for (i = 0; i < 4; i++) {
5703 params->freq = 58320 + i * 2160;
5704 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
e280110d 5705 freq_included(wpa_s, channels, params->freq) &&
1595eb93 5706 p2p_supported_freq(wpa_s->global->p2p, params->freq))
28812a89
IP		 5707 goto out;
5708 }
5709
b1308121 5710 params->freq = 0;
95d7b863 5711 wpa_printf(MSG_DEBUG, "P2P: No 2.4, 5, or 60 GHz channel allowed");
b1308121 5712 return;
28812a89
IP		 5713out:
5714 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5715 params->freq);
28812a89
IP		 5716}
5717
5718
b8349523
NKG		 5719static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5720 struct p2p_go_neg_results *params,
20ea1ca4 5721 int freq, int ht40, int vht,
54733624 5722 const struct p2p_channels *channels)
b22128ef 5723{
a0c90bb0 5724 struct wpa_used_freq_data *freqs;
b1308121 5725 unsigned int cand;
0d08efa4 5726 unsigned int num, i;
23dcb302 5727 int ignore_no_freqs = 0;
b22128ef
JM		 5728
5729 os_memset(params, 0, sizeof(*params));
5730 params->role_go = 1;
7aeac985 5731 params->ht40 = ht40;
20ea1ca4 5732 params->vht = vht;
e280110d 5733
b1308121
IP		 5734 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5735 sizeof(struct wpa_used_freq_data));
5736 if (!freqs)
5737 return -1;
5738
23dcb302
IP		 5739 num = get_shared_radio_freqs_data(wpa_s, freqs,
5740 wpa_s->num_multichan_concurrent);
5741
5742 if (wpa_s->current_ssid &&
5743 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
5744 wpa_s->wpa_state == WPA_COMPLETED) {
5745 wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
5746 __func__);
5747
5748 /*
5749 * If the frequency selection is done for an active P2P GO that
5750 * is not sharing a frequency, allow to select a new frequency
5751 * even if there are no unused frequencies as we are about to
5752 * move the P2P GO so its frequency can be re-used.
5753 */
5754 for (i = 0; i < num; i++) {
5755 if (freqs[i].freq == wpa_s->current_ssid->frequency &&
5756 freqs[i].flags == 0) {
5757 ignore_no_freqs = 1;
5758 break;
5759 }
5760 }
5761 }
b1308121
IP		 5762
5763 /* try using the forced freq */
7cfc4ac3 5764 if (freq) {
b1308121
IP		 5765 if (!wpas_p2p_supported_freq_go(wpa_s, channels, freq)) {
5766 wpa_printf(MSG_DEBUG,
5767 "P2P: Forced GO freq %d MHz not accepted",
5768 freq);
5769 goto fail;
5770 }
5771
5772 for (i = 0; i < num; i++) {
5773 if (freqs[i].freq == freq) {
5774 wpa_printf(MSG_DEBUG,
5775 "P2P: forced freq (%d MHz) is also shared",
5776 freq);
5777 params->freq = freq;
5778 goto success;
5779 }
54733624 5780 }
b1308121 5781
23dcb302
IP		 5782 if (!ignore_no_freqs &&
5783 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
b1308121
IP		 5784 wpa_printf(MSG_DEBUG,
5785 "P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
5786 freq);
5787 goto fail;
5788 }
5789
5790 wpa_printf(MSG_DEBUG,
5791 "P2P: force GO freq (%d MHz) on a free channel",
5792 freq);
b22128ef 5793 params->freq = freq;
b1308121
IP		 5794 goto success;
5795 }
5796
5797 /* consider using one of the shared frequencies */
5798 if (num) {
5799 cand = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5800 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5801 wpa_printf(MSG_DEBUG,
5802 "P2P: Use shared freq (%d MHz) for GO",
5803 freq);
5804 params->freq = cand;
5805 goto success;
5806 }
5807
5808 /* try using one of the shared freqs */
5809 for (i = 0; i < num; i++) {
5810 if (wpas_p2p_supported_freq_go(wpa_s, channels,
5811 freqs[i].freq)) {
5812 wpa_printf(MSG_DEBUG,
5813 "P2P: Use shared freq (%d MHz) for GO",
5814 freq);
5815 params->freq = freqs[i].freq;
5816 goto success;
5817 }
5818 }
5819 }
5820
23dcb302
IP		 5821 if (!ignore_no_freqs &&
5822 wpas_p2p_num_unused_channels(wpa_s) <= 0) {
b1308121
IP		 5823 wpa_printf(MSG_DEBUG,
5824 "P2P: Cannot force GO on any of the channels we are already using");
5825 goto fail;
5826 }
5827
5828 /* try using the setting from the configuration file */
5829 if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5830 wpa_s->conf->p2p_oper_channel >= 1 &&
5831 wpa_s->conf->p2p_oper_channel <= 11 &&
5832 wpas_p2p_supported_freq_go(
5833 wpa_s, channels,
5834 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 5835 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 5836 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5837 "frequency %d MHz", params->freq);
b1308121
IP		 5838 goto success;
5839 }
5840
5841 if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5842 wpa_s->conf->p2p_oper_reg_class == 116 ||
5843 wpa_s->conf->p2p_oper_reg_class == 117 ||
5844 wpa_s->conf->p2p_oper_reg_class == 124 ||
5845 wpa_s->conf->p2p_oper_reg_class == 125 ||
5846 wpa_s->conf->p2p_oper_reg_class == 126 ||
5847 wpa_s->conf->p2p_oper_reg_class == 127) &&
5848 wpas_p2p_supported_freq_go(wpa_s, channels,
5849 5000 +
5850 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 5851 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 5852 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5853 "frequency %d MHz", params->freq);
b1308121
IP		 5854 goto success;
5855 }
5856
5857 /* Try using best channels */
5858 if (wpa_s->conf->p2p_oper_channel == 0 &&
5859 wpa_s->best_overall_freq > 0 &&
5860 wpas_p2p_supported_freq_go(wpa_s, channels,
5861 wpa_s->best_overall_freq)) {
7cfc4ac3
AGS		 5862 params->freq = wpa_s->best_overall_freq;
5863 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5864 "channel %d MHz", params->freq);
b1308121
IP		 5865 goto success;
5866 }
5867
5868 if (wpa_s->conf->p2p_oper_channel == 0 &&
5869 wpa_s->best_24_freq > 0 &&
5870 wpas_p2p_supported_freq_go(wpa_s, channels,
5871 wpa_s->best_24_freq)) {
7cfc4ac3
AGS		 5872 params->freq = wpa_s->best_24_freq;
5873 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5874 "channel %d MHz", params->freq);
b1308121
IP		 5875 goto success;
5876 }
5877
5878 if (wpa_s->conf->p2p_oper_channel == 0 &&
5879 wpa_s->best_5_freq > 0 &&
5880 wpas_p2p_supported_freq_go(wpa_s, channels,
5881 wpa_s->best_5_freq)) {
7cfc4ac3
AGS		 5882 params->freq = wpa_s->best_5_freq;
5883 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5884 "channel %d MHz", params->freq);
b1308121
IP		 5885 goto success;
5886 }
5887
5888 /* try using preferred channels */
5889 cand = p2p_get_pref_freq(wpa_s->global->p2p, channels);
5890 if (cand && wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5891 params->freq = cand;
c6ccf12d
SS		 5892 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5893 "channels", params->freq);
b1308121
IP		 5894 goto success;
5895 }
5896
5897 /* Try using one of the group common freqs */
5898 if (wpa_s->p2p_group_common_freqs) {
e280110d 5899 for (i = 0; i < wpa_s->p2p_group_common_freqs_num; i++) {
b1308121
IP		 5900 cand = wpa_s->p2p_group_common_freqs[i];
5901 if (wpas_p2p_supported_freq_go(wpa_s, channels, cand)) {
5902 params->freq = cand;
e280110d
IP		 5903 wpa_printf(MSG_DEBUG,
5904 "P2P: Use freq %d MHz common with the peer",
5905 params->freq);
b1308121 5906 goto success;
e280110d
IP		 5907 }
5908 }
7cfc4ac3
AGS		 5909 }
5910
b1308121
IP		 5911 /* no preference, select some channel */
5912 wpas_p2p_select_go_freq_no_pref(wpa_s, params, channels);
a0c90bb0 5913
b1308121
IP		 5914 if (params->freq == 0) {
5915 wpa_printf(MSG_DEBUG, "P2P: did not find a freq for GO use");
5916 goto fail;
0d08efa4 5917 }
7d669cf7 5918
b1308121 5919success:
0d08efa4 5920 os_free(freqs);
b8349523 5921 return 0;
b1308121
IP		 5922fail:
5923 os_free(freqs);
5924 return -1;
b22128ef
JM		 5925}
5926
5927
5928static struct wpa_supplicant *
5929wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5930 int go)
5931{
5932 struct wpa_supplicant *group_wpa_s;
5933
ac06fb12
JM		 5934 if (!wpas_p2p_create_iface(wpa_s)) {
5935 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5936 "operations");
bbc6c729 5937 wpa_s->p2p_first_connection_timeout = 0;
b22128ef 5938 return wpa_s;
ac06fb12 5939 }
b22128ef
JM		 5940
5941 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
ac06fb12 5942 WPA_IF_P2P_CLIENT) < 0) {
92c4465b
JM		 5943 wpa_msg_global(wpa_s, MSG_ERROR,
5944 "P2P: Failed to add group interface");
b22128ef 5945 return NULL;
ac06fb12 5946 }
b22128ef
JM		 5947 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5948 if (group_wpa_s == NULL) {
92c4465b
JM		 5949 wpa_msg_global(wpa_s, MSG_ERROR,
5950 "P2P: Failed to initialize group interface");
b22128ef
JM		 5951 wpas_p2p_remove_pending_group_interface(wpa_s);
5952 return NULL;
5953 }
5954
ac06fb12
JM		 5955 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5956 group_wpa_s->ifname);
bbc6c729 5957 group_wpa_s->p2p_first_connection_timeout = 0;
b22128ef
JM		 5958 return group_wpa_s;
5959}
5960
5961
5962/**
5963 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5964 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5965 * @persistent_group: Whether to create a persistent group
5966 * @freq: Frequency for the group or 0 to indicate no hardcoding
20ea1ca4
EP		 5967 * @ht40: Start GO with 40 MHz channel width
5968 * @vht: Start GO with VHT support
b22128ef
JM		 5969 * Returns: 0 on success, -1 on failure
5970 *
5971 * This function creates a new P2P group with the local end as the Group Owner,
5972 * i.e., without using Group Owner Negotiation.
5973 */
5974int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
20ea1ca4 5975 int freq, int ht40, int vht)
b22128ef
JM		 5976{
5977 struct p2p_go_neg_results params;
7cfc4ac3 5978
9526fd29
JM		 5979 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5980 return -1;
5981
01a57fe4
JM		 5982 os_free(wpa_s->global->add_psk);
5983 wpa_s->global->add_psk = NULL;
5984
2d4f15d6
JJ		 5985 /* Make sure we are not running find during connection establishment */
5986 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
8713a2e6 5987 wpas_p2p_stop_find_oper(wpa_s);
2d4f15d6 5988
4abc0424
WJL		 5989 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5990 if (freq < 0)
4ae4650b 5991 return -1;
4ae4650b 5992
20ea1ca4 5993 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, NULL))
b8349523 5994 return -1;
f4329aa2 5995 if (params.freq &&
556b30da 5996 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
d7f1aa8f
AK		 5997 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD) &&
5998 ieee80211_is_dfs(params.freq)) {
5999 /*
6000 * If freq is a DFS channel and DFS is offloaded to the
6001 * driver, allow P2P GO to use it.
6002 */
6003 wpa_printf(MSG_DEBUG,
6004 "P2P: %s: The forced channel for GO (%u MHz) is DFS, and DFS is offloaded to driver",
6005 __func__, params.freq);
6006 } else {
6007 wpa_printf(MSG_DEBUG,
6008 "P2P: The selected channel for GO (%u MHz) is not supported for P2P uses",
6009 params.freq);
6010 return -1;
6011 }
f4329aa2 6012 }
b22128ef
JM		 6013 p2p_go_params(wpa_s->global->p2p, &params);
6014 params.persistent_group = persistent_group;
6015
6016 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
6017 if (wpa_s == NULL)
6018 return -1;
6019 wpas_start_wps_go(wpa_s, &params, 0);
6020
6021 return 0;
6022}
6023
6024
6025static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
41d5ce9e 6026 struct wpa_ssid *params, int addr_allocated,
dfaf11d6 6027 int freq, int force_scan)
b22128ef
JM		 6028{
6029 struct wpa_ssid *ssid;
6030
6031 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
6032 if (wpa_s == NULL)
6033 return -1;
dfaf11d6
JM		 6034 if (force_scan)
6035 os_get_reltime(&wpa_s->scan_min_time);
5bf9a6c8 6036 wpa_s->p2p_last_4way_hs_fail = NULL;
b22128ef
JM		 6037
6038 wpa_supplicant_ap_deinit(wpa_s);
6039
6040 ssid = wpa_config_add_network(wpa_s->conf);
6041 if (ssid == NULL)
6042 return -1;
9f59fe8d 6043 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
b22128ef
JM		 6044 wpa_config_set_network_defaults(ssid);
6045 ssid->temporary = 1;
6046 ssid->proto = WPA_PROTO_RSN;
6047 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
6048 ssid->group_cipher = WPA_CIPHER_CCMP;
6049 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
6050 ssid->ssid = os_malloc(params->ssid_len);
6051 if (ssid->ssid == NULL) {
b22128ef
JM		 6052 wpa_config_remove_network(wpa_s->conf, ssid->id);
6053 return -1;
6054 }
6055 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
6056 ssid->ssid_len = params->ssid_len;
6057 ssid->p2p_group = 1;
d1c8ac88 6058 ssid->export_keys = 1;
b22128ef
JM		 6059 if (params->psk_set) {
6060 os_memcpy(ssid->psk, params->psk, 32);
6061 ssid->psk_set = 1;
6062 }
6063 if (params->passphrase)
6064 ssid->passphrase = os_strdup(params->passphrase);
6065
b22128ef 6066 wpa_s->show_group_started = 1;
41d5ce9e
RR		 6067 wpa_s->p2p_in_invitation = 1;
6068 wpa_s->p2p_invite_go_freq = freq;
b22128ef 6069
91364b7f
SDU		 6070 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6071 NULL);
6072 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6073 wpas_p2p_group_formation_timeout,
6074 wpa_s->parent, NULL);
6fc48481
RR		 6075 wpa_supplicant_select_network(wpa_s, ssid);
6076
b22128ef
JM		 6077 return 0;
6078}
6079
6080
6081int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
6082 struct wpa_ssid *ssid, int addr_allocated,
062a7c0d
MS		 6083 int force_freq, int neg_freq, int ht40,
6084 int vht, const struct p2p_channels *channels,
dfaf11d6 6085 int connection_timeout, int force_scan)
b22128ef
JM		 6086{
6087 struct p2p_go_neg_results params;
062a7c0d 6088 int go = 0, freq;
b22128ef
JM		 6089
6090 if (ssid->disabled != 2 || ssid->ssid == NULL)
6091 return -1;
6092
6c0da49f
JM		 6093 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
6094 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
6095 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
6096 "already running");
ccad05a9
KV		 6097 if (go == 0 &&
6098 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6099 wpa_s->parent, NULL)) {
6100 /*
6101 * This can happen if Invitation Response frame was lost
6102 * and the peer (GO of a persistent group) tries to
6103 * invite us again. Reschedule the timeout to avoid
6104 * terminating the wait for the connection too early
6105 * since we now know that the peer is still trying to
6106 * invite us instead of having already started the GO.
6107 */
6108 wpa_printf(MSG_DEBUG,
6109 "P2P: Reschedule group formation timeout since peer is still trying to invite us");
6110 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6111 wpas_p2p_group_formation_timeout,
6112 wpa_s->parent, NULL);
6113 }
6c0da49f
JM		 6114 return 0;
6115 }
6116
01a57fe4
JM		 6117 os_free(wpa_s->global->add_psk);
6118 wpa_s->global->add_psk = NULL;
6119
9d39057c 6120 /* Make sure we are not running find during connection establishment */
8713a2e6 6121 wpas_p2p_stop_find_oper(wpa_s);
b22128ef 6122
aa9bb764
JM		 6123 wpa_s->p2p_fallback_to_go_neg = 0;
6124
431dd8bb
MK		 6125 if (ssid->mode == WPAS_MODE_P2P_GO) {
6126 if (force_freq > 0) {
6127 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
6128 if (freq < 0)
6129 return -1;
6130 } else {
6131 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
6132 if (freq < 0 ||
e280110d 6133 (freq > 0 && !freq_included(wpa_s, channels, freq)))
431dd8bb
MK		 6134 freq = 0;
6135 }
989e7846 6136 } else if (ssid->mode == WPAS_MODE_INFRA) {
431dd8bb 6137 freq = neg_freq;
e280110d 6138 if (freq <= 0 || !freq_included(wpa_s, channels, freq)) {
989e7846
AS		 6139 struct os_reltime now;
6140 struct wpa_bss *bss =
6141 wpa_bss_get_p2p_dev_addr(wpa_s, ssid->bssid);
6142
6143 os_get_reltime(&now);
6144 if (bss &&
6145 !os_reltime_expired(&now, &bss->last_update, 5) &&
e280110d 6146 freq_included(wpa_s, channels, bss->freq))
989e7846
AS		 6147 freq = bss->freq;
6148 else
6149 freq = 0;
6150 }
4abc0424 6151
dfaf11d6
JM		 6152 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq,
6153 force_scan);
989e7846 6154 } else {
41d5ce9e 6155 return -1;
989e7846 6156 }
41d5ce9e 6157
20ea1ca4 6158 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, channels))
b8349523 6159 return -1;
b22128ef
JM		 6160
6161 params.role_go = 1;
30c371e8
MH		 6162 params.psk_set = ssid->psk_set;
6163 if (params.psk_set)
6164 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
bb4d4deb
MH		 6165 if (ssid->passphrase) {
6166 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
6167 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
6168 "persistent group");
6169 return -1;
6170 }
6171 os_strlcpy(params.passphrase, ssid->passphrase,
6172 sizeof(params.passphrase));
b22128ef 6173 }
b22128ef
JM		 6174 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
6175 params.ssid_len = ssid->ssid_len;
6176 params.persistent_group = 1;
6177
6178 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
6179 if (wpa_s == NULL)
6180 return -1;
6181
1170239e
IP		 6182 p2p_channels_to_freqs(channels, params.freq_list, P2P_MAX_CHANNELS);
6183
bbc6c729 6184 wpa_s->p2p_first_connection_timeout = connection_timeout;
b22128ef
JM		 6185 wpas_start_wps_go(wpa_s, &params, 0);
6186
6187 return 0;
6188}
6189
6190
6191static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
6192 struct wpabuf *proberesp_ies)
6193{
6194 struct wpa_supplicant *wpa_s = ctx;
6195 if (wpa_s->ap_iface) {
6196 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
adc33680
JM		 6197 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
6198 wpabuf_free(beacon_ies);
6199 wpabuf_free(proberesp_ies);
6200 return;
6201 }
b22128ef
JM		 6202 if (beacon_ies) {
6203 wpabuf_free(hapd->p2p_beacon_ie);
6204 hapd->p2p_beacon_ie = beacon_ies;
6205 }
6206 wpabuf_free(hapd->p2p_probe_resp_ie);
6207 hapd->p2p_probe_resp_ie = proberesp_ies;
6208 } else {
6209 wpabuf_free(beacon_ies);
6210 wpabuf_free(proberesp_ies);
6211 }
6212 wpa_supplicant_ap_update_beacon(wpa_s);
6213}
6214
6215
3071e181
JM		 6216static void wpas_p2p_idle_update(void *ctx, int idle)
6217{
6218 struct wpa_supplicant *wpa_s = ctx;
6219 if (!wpa_s->ap_iface)
6220 return;
6221 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
95fb2db2
JM		 6222 if (idle) {
6223 if (wpa_s->global->p2p_fail_on_wps_complete &&
6224 wpa_s->p2p_in_provisioning) {
6225 wpas_p2p_grpform_fail_after_wps(wpa_s);
6226 return;
6227 }
3071e181 6228 wpas_p2p_set_group_idle_timeout(wpa_s);
95fb2db2 6229 } else
3071e181
JM		 6230 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
6231}
6232
6233
b22128ef 6234struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6f251b6b 6235 struct wpa_ssid *ssid)
b22128ef
JM		 6236{
6237 struct p2p_group *group;
6238 struct p2p_group_config *cfg;
6239
9526fd29
JM		 6240 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6241 return NULL;
3ac17eba 6242
b22128ef
JM		 6243 cfg = os_zalloc(sizeof(*cfg));
6244 if (cfg == NULL)
6245 return NULL;
6246
6f251b6b 6247 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
acc247b2 6248 cfg->persistent_group = 2;
6f251b6b 6249 else if (ssid->p2p_persistent_group)
acc247b2 6250 cfg->persistent_group = 1;
b22128ef 6251 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3f4ce13f
JM		 6252 if (wpa_s->max_stations &&
6253 wpa_s->max_stations < wpa_s->conf->max_num_sta)
6254 cfg->max_clients = wpa_s->max_stations;
6255 else
6256 cfg->max_clients = wpa_s->conf->max_num_sta;
6f251b6b
JM		 6257 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
6258 cfg->ssid_len = ssid->ssid_len;
ea43ad96 6259 cfg->freq = ssid->frequency;
b22128ef
JM		 6260 cfg->cb_ctx = wpa_s;
6261 cfg->ie_update = wpas_p2p_ie_update;
3071e181 6262 cfg->idle_update = wpas_p2p_idle_update;
b22128ef
JM		 6263
6264 group = p2p_group_init(wpa_s->global->p2p, cfg);
6265 if (group == NULL)
6266 os_free(cfg);
6f251b6b 6267 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
b22128ef
JM		 6268 p2p_group_notif_formation_done(group);
6269 wpa_s->p2p_group = group;
6270 return group;
6271}
6272
6273
6274void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
6275 int registrar)
6276{
10531d21
JM		 6277 struct wpa_ssid *ssid = wpa_s->current_ssid;
6278
b22128ef
JM		 6279 if (!wpa_s->p2p_in_provisioning) {
6280 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
6281 "provisioning not in progress");
6282 return;
6283 }
6284
10531d21
JM		 6285 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6286 u8 go_dev_addr[ETH_ALEN];
6287 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
6288 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6289 ssid->ssid_len);
6290 /* Clear any stored provisioning info */
6291 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
6292 }
ec437d9e 6293
b22128ef
JM		 6294 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
6295 NULL);
41f85323 6296 wpa_s->p2p_go_group_formation_completed = 1;
361cdf34
JM		 6297 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
6298 /*
6299 * Use a separate timeout for initial data connection to
6300 * complete to allow the group to be removed automatically if
6301 * something goes wrong in this step before the P2P group idle
6302 * timeout mechanism is taken into use.
6303 */
41f85323
JM		 6304 wpa_dbg(wpa_s, MSG_DEBUG,
6305 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
6306 P2P_MAX_INITIAL_CONN_WAIT);
361cdf34
JM		 6307 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
6308 wpas_p2p_group_formation_timeout,
ad853202 6309 wpa_s->parent, NULL);
41f85323
JM		 6310 } else if (ssid) {
6311 /*
6312 * Use a separate timeout for initial data connection to
6313 * complete to allow the group to be removed automatically if
6314 * the client does not complete data connection successfully.
6315 */
6316 wpa_dbg(wpa_s, MSG_DEBUG,
6317 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
6318 P2P_MAX_INITIAL_CONN_WAIT_GO);
6319 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
6320 wpas_p2p_group_formation_timeout,
6321 wpa_s->parent, NULL);
6322 /*
6323 * Complete group formation on first successful data connection
6324 */
6325 wpa_s->p2p_go_group_formation_completed = 0;
361cdf34 6326 }
b22128ef
JM		 6327 if (wpa_s->global->p2p)
6328 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
d95c5994 6329 wpas_group_formation_completed(wpa_s, 1, 0);
b22128ef
JM		 6330}
6331
6332
3734552f
JS		 6333void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
6334 struct wps_event_fail *fail)
6335{
6336 if (!wpa_s->p2p_in_provisioning) {
6337 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
6338 "provisioning not in progress");
6339 return;
6340 }
ec437d9e
JJ		 6341
6342 if (wpa_s->go_params) {
6343 p2p_clear_provisioning_info(
6344 wpa_s->global->p2p,
10531d21 6345 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 6346 }
6347
3734552f 6348 wpas_notify_p2p_wps_failed(wpa_s, fail);
95fb2db2
JM		 6349
6350 if (wpa_s == wpa_s->global->p2p_group_formation) {
6351 /*
6352 * Allow some time for the failed WPS negotiation exchange to
6353 * complete, but remove the group since group formation cannot
6354 * succeed after provisioning failure.
6355 */
6356 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
6357 wpa_s->global->p2p_fail_on_wps_complete = 1;
6358 eloop_deplete_timeout(0, 50000,
6359 wpas_p2p_group_formation_timeout,
6360 wpa_s->parent, NULL);
6361 }
6362}
6363
6364
6365int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
6366{
6367 if (!wpa_s->global->p2p_fail_on_wps_complete ||
6368 !wpa_s->p2p_in_provisioning)
6369 return 0;
6370
6371 wpas_p2p_grpform_fail_after_wps(wpa_s);
6372
6373 return 1;
3734552f
JS		 6374}
6375
6376
b22128ef 6377int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
0918c4bf 6378 const char *config_method,
6d908514
KV		 6379 enum wpas_p2p_prov_disc_use use,
6380 struct p2ps_provision *p2ps_prov)
b22128ef
JM		 6381{
6382 u16 config_methods;
6383
9a58e521 6384 wpa_s->global->pending_p2ps_group = 0;
8bb8e6ed 6385 wpa_s->global->pending_p2ps_group_freq = 0;
aa9bb764 6386 wpa_s->p2p_fallback_to_go_neg = 0;
0918c4bf 6387 wpa_s->pending_pd_use = NORMAL_PD;
6d908514
KV		 6388 if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
6389 p2ps_prov->conncap = p2ps_group_capability(
ebd32943
IP		 6390 wpa_s, P2PS_SETUP_NONE, p2ps_prov->role,
6391 &p2ps_prov->force_freq, &p2ps_prov->pref_freq);
6392
6d908514
KV		 6393 wpa_printf(MSG_DEBUG,
6394 "P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
6395 __func__, p2ps_prov->conncap,
6396 p2ps_prov->adv_id, p2ps_prov->conncap,
6397 p2ps_prov->status, p2ps_prov->info);
6398
6399 config_methods = 0;
6400 } else if (os_strncmp(config_method, "display", 7) == 0)
b22128ef 6401 config_methods = WPS_CONFIG_DISPLAY;
8c5f7309 6402 else if (os_strncmp(config_method, "keypad", 6) == 0)
b22128ef 6403 config_methods = WPS_CONFIG_KEYPAD;
8c5f7309
JJ		 6404 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
6405 os_strncmp(config_method, "pushbutton", 10) == 0)
b22128ef 6406 config_methods = WPS_CONFIG_PUSHBUTTON;
8c5f7309
JJ		 6407 else {
6408 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
6d908514 6409 os_free(p2ps_prov);
b22128ef 6410 return -1;
8c5f7309 6411 }
b22128ef 6412
0918c4bf
JM		 6413 if (use == WPAS_P2P_PD_AUTO) {
6414 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
6415 wpa_s->pending_pd_config_methods = config_methods;
6416 wpa_s->p2p_auto_pd = 1;
6417 wpa_s->p2p_auto_join = 0;
6418 wpa_s->pending_pd_before_join = 0;
84286a22 6419 wpa_s->auto_pd_scan_retry = 0;
0918c4bf
JM		 6420 wpas_p2p_stop_find(wpa_s);
6421 wpa_s->p2p_join_scan_count = 0;
acb69cec 6422 os_get_reltime(&wpa_s->p2p_auto_started);
84286a22
SDU		 6423 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
6424 wpa_s->p2p_auto_started.sec,
6425 wpa_s->p2p_auto_started.usec);
0918c4bf
JM		 6426 wpas_p2p_join_scan(wpa_s, NULL);
6427 return 0;
6428 }
6429
6d908514
KV		 6430 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled) {
6431 os_free(p2ps_prov);
b22128ef 6432 return -1;
6d908514 6433 }
b22128ef 6434
6d908514 6435 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, p2ps_prov,
0918c4bf 6436 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
67527166 6437 0, 1);
b22128ef
JM		 6438}
6439
6440
6441int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
6442 char *end)
6443{
6444 return p2p_scan_result_text(ies, ies_len, buf, end);
6445}
6446
6447
1cc3a29d
JM		 6448static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
6449{
2f3101d8 6450 if (!offchannel_pending_action_tx(wpa_s))
1cc3a29d
JM		 6451 return;
6452
2c51c0bd
AS		 6453 if (wpa_s->p2p_send_action_work)
6454 wpas_p2p_free_send_action_work(wpa_s);
2fa980f0 6455
1cc3a29d
JM		 6456 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
6457 "operation request");
2f3101d8 6458 offchannel_clear_pending_action_tx(wpa_s);
1cc3a29d
JM		 6459}
6460
6461
b22128ef 6462int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
046ef4aa 6463 enum p2p_discovery_type type,
6d92fa6e 6464 unsigned int num_req_dev_types, const u8 *req_dev_types,
51775096 6465 const u8 *dev_id, unsigned int search_delay,
fa9f381f 6466 u8 seek_cnt, const char **seek_string, int freq)
b22128ef 6467{
1cc3a29d 6468 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef
JM		 6469 wpa_s->p2p_long_listen = 0;
6470
5bda43cd 6471 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
85a6cdb5 6472 wpa_s->p2p_in_provisioning)
9526fd29
JM		 6473 return -1;
6474
433cd2ce
JM		 6475 wpa_supplicant_cancel_sched_scan(wpa_s);
6476
046ef4aa 6477 return p2p_find(wpa_s->global->p2p, timeout, type,
37448ede 6478 num_req_dev_types, req_dev_types, dev_id,
fa9f381f 6479 search_delay, seek_cnt, seek_string, freq);
b22128ef
JM		 6480}
6481
6482
477b082c
SD		 6483static void wpas_p2p_scan_res_ignore_search(struct wpa_supplicant *wpa_s,
6484 struct wpa_scan_results *scan_res)
6485{
6486 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6487
6488 if (wpa_s->p2p_scan_work) {
6489 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
6490 wpa_s->p2p_scan_work = NULL;
6491 radio_work_done(work);
6492 }
6493
6494 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6495 return;
6496
6497 /*
6498 * Indicate that results have been processed so that the P2P module can
6499 * continue pending tasks.
6500 */
6501 p2p_scan_res_handled(wpa_s->global->p2p);
6502}
6503
6504
a6294141 6505static void wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
b22128ef 6506{
1cc3a29d 6507 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef 6508 wpa_s->p2p_long_listen = 0;
9d39057c 6509 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
ef922c4a 6510 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 6511
9526fd29
JM		 6512 if (wpa_s->global->p2p)
6513 p2p_stop_find(wpa_s->global->p2p);
477b082c
SD		 6514
6515 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
6516 wpa_printf(MSG_DEBUG,
6517 "P2P: Do not consider the scan results after stop_find");
6518 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore_search;
6519 }
8713a2e6
JM		 6520}
6521
6522
6523void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
6524{
a6294141 6525 wpas_p2p_stop_find_oper(wpa_s);
93eca615
KV		 6526 if (!wpa_s->global->pending_group_iface_for_p2ps)
6527 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 6528}
6529
6530
6531static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
6532{
6533 struct wpa_supplicant *wpa_s = eloop_ctx;
6534 wpa_s->p2p_long_listen = 0;
6535}
6536
6537
6538int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
6539{
6540 int res;
6541
9526fd29
JM		 6542 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6543 return -1;
6544
433cd2ce 6545 wpa_supplicant_cancel_sched_scan(wpa_s);
1cc3a29d
JM		 6546 wpas_p2p_clear_pending_action_tx(wpa_s);
6547
b22128ef
JM		 6548 if (timeout == 0) {
6549 /*
6550 * This is a request for unlimited Listen state. However, at
6551 * least for now, this is mapped to a Listen state for one
6552 * hour.
6553 */
6554 timeout = 3600;
6555 }
6556 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
6557 wpa_s->p2p_long_listen = 0;
6558
2bb747e2
JM		 6559 /*
6560 * Stop previous find/listen operation to avoid trying to request a new
6561 * remain-on-channel operation while the driver is still running the
6562 * previous one.
6563 */
6564 if (wpa_s->global->p2p)
6565 p2p_stop_find(wpa_s->global->p2p);
6566
b22128ef
JM		 6567 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
6568 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
11fb02be 6569 wpa_s->p2p_long_listen = timeout * 1000;
b22128ef
JM		 6570 eloop_register_timeout(timeout, 0,
6571 wpas_p2p_long_listen_timeout,
6572 wpa_s, NULL);
6573 }
6574
6575 return res;
6576}
6577
6578
4c08c0bd 6579int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 6580 u8 *buf, size_t len, int p2p_group)
6581{
4c08c0bd
JM		 6582 struct wpabuf *p2p_ie;
6583 int ret;
6584
b22128ef
JM		 6585 if (wpa_s->global->p2p_disabled)
6586 return -1;
d63f1419
SD		 6587 /*
6588 * Advertize mandatory cross connection capability even on
6589 * p2p_disabled=1 interface when associating with a P2P Manager WLAN AP.
6590 */
6591 if (wpa_s->conf->p2p_disabled && p2p_group)
1c2aa04c 6592 return -1;
b22128ef
JM		 6593 if (wpa_s->global->p2p == NULL)
6594 return -1;
e1f1509b
JM		 6595 if (bss == NULL)
6596 return -1;
b22128ef 6597
4c08c0bd
JM		 6598 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
6599 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
6600 p2p_group, p2p_ie);
6601 wpabuf_free(p2p_ie);
6602
6603 return ret;
b22128ef
JM		 6604}
6605
6606
6607int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
04a85e44 6608 const u8 *dst, const u8 *bssid,
734ddf61
MS		 6609 const u8 *ie, size_t ie_len,
6610 unsigned int rx_freq, int ssi_signal)
b22128ef
JM		 6611{
6612 if (wpa_s->global->p2p_disabled)
6613 return 0;
6614 if (wpa_s->global->p2p == NULL)
6615 return 0;
6616
2d43d37f 6617 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
734ddf61 6618 ie, ie_len, rx_freq)) {
2d43d37f
JB		 6619 case P2P_PREQ_NOT_P2P:
6620 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
6621 ssi_signal);
6622 /* fall through */
6623 case P2P_PREQ_MALFORMED:
6624 case P2P_PREQ_NOT_LISTEN:
6625 case P2P_PREQ_NOT_PROCESSED:
6626 default: /* make gcc happy */
6627 return 0;
6628 case P2P_PREQ_PROCESSED:
6629 return 1;
6630 }
b22128ef
JM		 6631}
6632
6633
6634void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
6635 const u8 *sa, const u8 *bssid,
6636 u8 category, const u8 *data, size_t len, int freq)
6637{
6638 if (wpa_s->global->p2p_disabled)
6639 return;
6640 if (wpa_s->global->p2p == NULL)
6641 return;
6642
6643 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
6644 freq);
6645}
6646
6647
6648void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
6649{
6650 if (wpa_s->global->p2p_disabled)
6651 return;
6652 if (wpa_s->global->p2p == NULL)
6653 return;
6654
6d92fa6e 6655 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
b22128ef
JM		 6656}
6657
6658
bd10d938 6659static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
b22128ef
JM		 6660{
6661 p2p_group_deinit(wpa_s->p2p_group);
6662 wpa_s->p2p_group = NULL;
a7fd39bb
JD		 6663
6664 wpa_s->ap_configured_cb = NULL;
6665 wpa_s->ap_configured_cb_ctx = NULL;
6666 wpa_s->ap_configured_cb_data = NULL;
6667 wpa_s->connect_without_scan = NULL;
b22128ef
JM		 6668}
6669
6670
6671int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
6672{
6673 wpa_s->p2p_long_listen = 0;
6674
9526fd29
JM		 6675 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6676 return -1;
6677
b22128ef
JM		 6678 return p2p_reject(wpa_s->global->p2p, addr);
6679}
6680
6681
6682/* Invite to reinvoke a persistent group */
6683int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4d32c0c4 6684 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
20ea1ca4 6685 int ht40, int vht, int pref_freq)
b22128ef
JM		 6686{
6687 enum p2p_invite_role role;
0d08efa4
IP		 6688 u8 *bssid = NULL;
6689 int force_freq = 0;
5de4b721 6690 int res;
d0f61a4b 6691 int no_pref_freq_given = pref_freq == 0;
370017d9 6692 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
b22128ef 6693
dbca75f8 6694 wpa_s->global->p2p_invite_group = NULL;
77e4e853
JM		 6695 if (peer_addr)
6696 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
6697 else
6698 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
6699
4d32c0c4
JM		 6700 wpa_s->p2p_persistent_go_freq = freq;
6701 wpa_s->p2p_go_ht40 = !!ht40;
b22128ef
JM		 6702 if (ssid->mode == WPAS_MODE_P2P_GO) {
6703 role = P2P_INVITE_ROLE_GO;
6704 if (peer_addr == NULL) {
6705 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
6706 "address in invitation command");
6707 return -1;
6708 }
6709 if (wpas_p2p_create_iface(wpa_s)) {
6710 if (wpas_p2p_add_group_interface(wpa_s,
6711 WPA_IF_P2P_GO) < 0) {
6712 wpa_printf(MSG_ERROR, "P2P: Failed to "
6713 "allocate a new interface for the "
6714 "group");
6715 return -1;
6716 }
6717 bssid = wpa_s->pending_interface_addr;
6718 } else
6719 bssid = wpa_s->own_addr;
6720 } else {
6721 role = P2P_INVITE_ROLE_CLIENT;
6722 peer_addr = ssid->bssid;
6723 }
6724 wpa_s->pending_invite_ssid_id = ssid->id;
6725
370017d9 6726 size = P2P_MAX_PREF_CHANNELS;
51e9f228 6727 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
370017d9
AK		 6728 role == P2P_INVITE_ROLE_GO,
6729 pref_freq_list, &size);
5de4b721
JM		 6730 if (res)
6731 return res;
fbcddaed 6732 p2p_set_own_pref_freq_list(wpa_s->global->p2p, pref_freq_list, size);
79879f4a 6733
9526fd29
JM		 6734 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6735 return -1;
6736
d0f61a4b
JM		 6737 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
6738 no_pref_freq_given && pref_freq > 0 &&
6739 wpa_s->num_multichan_concurrent > 1 &&
6740 wpas_p2p_num_unused_channels(wpa_s) > 0) {
6741 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
6742 pref_freq);
6743 pref_freq = 0;
6744 }
6745
b72b2ad3
IP		 6746 /*
6747 * Stop any find/listen operations before invitation and possibly
6748 * connection establishment.
6749 */
6750 wpas_p2p_stop_find_oper(wpa_s);
6751
b22128ef 6752 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a 6753 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
8e9f53c3 6754 1, pref_freq, -1);
b22128ef
JM		 6755}
6756
6757
6758/* Invite to join an active group */
6759int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6760 const u8 *peer_addr, const u8 *go_dev_addr)
6761{
6762 struct wpa_global *global = wpa_s->global;
6763 enum p2p_invite_role role;
0d08efa4 6764 u8 *bssid = NULL;
b22128ef 6765 struct wpa_ssid *ssid;
c427ac92 6766 int persistent;
73b54d63 6767 int freq = 0, force_freq = 0, pref_freq = 0;
5de4b721 6768 int res;
370017d9 6769 unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
b22128ef 6770
4d32c0c4
JM		 6771 wpa_s->p2p_persistent_go_freq = 0;
6772 wpa_s->p2p_go_ht40 = 0;
20ea1ca4 6773 wpa_s->p2p_go_vht = 0;
4d32c0c4 6774
b22128ef
JM		 6775 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6776 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6777 break;
6778 }
6779 if (wpa_s == NULL) {
6780 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6781 return -1;
6782 }
6783
6784 ssid = wpa_s->current_ssid;
6785 if (ssid == NULL) {
6786 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6787 "invitation");
6788 return -1;
6789 }
6790
dbca75f8 6791 wpa_s->global->p2p_invite_group = wpa_s;
c427ac92
JM		 6792 persistent = ssid->p2p_persistent_group &&
6793 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6794 ssid->ssid, ssid->ssid_len);
6795
b22128ef
JM		 6796 if (ssid->mode == WPAS_MODE_P2P_GO) {
6797 role = P2P_INVITE_ROLE_ACTIVE_GO;
6798 bssid = wpa_s->own_addr;
6799 if (go_dev_addr == NULL)
d7e70476 6800 go_dev_addr = wpa_s->global->p2p_dev_addr;
73b54d63 6801 freq = ssid->frequency;
b22128ef
JM		 6802 } else {
6803 role = P2P_INVITE_ROLE_CLIENT;
6804 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6805 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6806 "invite to current group");
6807 return -1;
6808 }
6809 bssid = wpa_s->bssid;
6810 if (go_dev_addr == NULL &&
6811 !is_zero_ether_addr(wpa_s->go_dev_addr))
6812 go_dev_addr = wpa_s->go_dev_addr;
73b54d63
JM		 6813 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6814 (int) wpa_s->assoc_freq;
b22128ef 6815 }
bb79dc72 6816 wpa_s->parent->pending_invite_ssid_id = -1;
b22128ef 6817
9526fd29
JM		 6818 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6819 return -1;
6820
370017d9 6821 size = P2P_MAX_PREF_CHANNELS;
51e9f228 6822 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
370017d9
AK		 6823 role == P2P_INVITE_ROLE_ACTIVE_GO,
6824 pref_freq_list, &size);
5de4b721
JM		 6825 if (res)
6826 return res;
0d08efa4 6827 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
79879f4a 6828
b22128ef 6829 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a 6830 ssid->ssid, ssid->ssid_len, force_freq,
8e9f53c3 6831 go_dev_addr, persistent, pref_freq, -1);
b22128ef
JM		 6832}
6833
6834
6835void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6836{
6837 struct wpa_ssid *ssid = wpa_s->current_ssid;
b22128ef 6838 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 6839 int network_id = -1;
b22128ef 6840 int persistent;
b49d6ccb 6841 int freq;
25ef8529
JM		 6842 u8 ip[3 * 4];
6843 char ip_addr[100];
b22128ef 6844
73ccd083
JM		 6845 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6846 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6847 wpa_s->parent, NULL);
6848 }
361cdf34 6849
b22128ef 6850 if (!wpa_s->show_group_started || !ssid)
1b5d4714 6851 return;
b22128ef
JM		 6852
6853 wpa_s->show_group_started = 0;
6854
b22128ef
JM		 6855 os_memset(go_dev_addr, 0, ETH_ALEN);
6856 if (ssid->bssid_set)
6857 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6858 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6859 ssid->ssid_len);
6860 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6861
a0a9f3b0
JM		 6862 if (wpa_s->global->p2p_group_formation == wpa_s)
6863 wpa_s->global->p2p_group_formation = NULL;
6864
b49d6ccb
JJ		 6865 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6866 (int) wpa_s->assoc_freq;
25ef8529
JM		 6867
6868 ip_addr[0] = '\0';
6869 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
1d399771
JM		 6870 int res;
6871
6872 res = os_snprintf(ip_addr, sizeof(ip_addr),
6873 " ip_addr=%u.%u.%u.%u "
6874 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6875 ip[0], ip[1], ip[2], ip[3],
6876 ip[4], ip[5], ip[6], ip[7],
6877 ip[8], ip[9], ip[10], ip[11]);
6878 if (os_snprintf_error(sizeof(ip_addr), res))
6879 ip_addr[0] = '\0';
25ef8529
JM		 6880 }
6881
f8723e1e
JM		 6882 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6883 ssid->passphrase == NULL && ssid->psk_set ?
6884 ssid->psk : NULL,
6885 ssid->passphrase, go_dev_addr, persistent,
6886 ip_addr);
b22128ef
JM		 6887
6888 if (persistent)
4b6baa2f
JMB		 6889 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6890 ssid, go_dev_addr);
6891 if (network_id < 0)
6892 network_id = ssid->id;
6893 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
b22128ef
JM		 6894}
6895
6896
6897int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6898 u32 interval1, u32 duration2, u32 interval2)
6899{
c64e3a08
JM		 6900 int ret;
6901
9526fd29
JM		 6902 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6903 return -1;
3ac17eba 6904
b22128ef
JM		 6905 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6906 wpa_s->current_ssid == NULL ||
6907 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6908 return -1;
6909
c64e3a08
JM		 6910 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6911 wpa_s->own_addr, wpa_s->assoc_freq,
6912 duration1, interval1, duration2, interval2);
6913 if (ret == 0)
6914 wpa_s->waiting_presence_resp = 1;
6915
6916 return ret;
b22128ef
JM		 6917}
6918
6919
6920int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6921 unsigned int interval)
6922{
9526fd29
JM		 6923 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6924 return -1;
6925
b22128ef
JM		 6926 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6927}
6928
6929
c8106615
JM		 6930static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6931{
5fbddfdc
JM		 6932 if (wpa_s->current_ssid == NULL) {
6933 /*
c7deed74 6934 * current_ssid can be cleared when P2P client interface gets
5fbddfdc
JM		 6935 * disconnected, so assume this interface was used as P2P
6936 * client.
6937 */
6938 return 1;
6939 }
6940 return wpa_s->current_ssid->p2p_group &&
c8106615
JM		 6941 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6942}
6943
6944
3071e181
JM		 6945static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6946{
6947 struct wpa_supplicant *wpa_s = eloop_ctx;
6948
c8106615 6949 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
3071e181
JM		 6950 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6951 "disabled");
6952 return;
6953 }
6954
6955 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6956 "group");
8dba4aef 6957 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
3071e181
JM		 6958}
6959
6960
6961static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6962{
5f482d55 6963 int timeout;
c8106615 6964
dddc7045
JM		 6965 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6966 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6967
c8106615 6968 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3071e181
JM		 6969 return;
6970
c8106615
JM		 6971 timeout = wpa_s->conf->p2p_group_idle;
6972 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6973 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6974 timeout = P2P_MAX_CLIENT_IDLE;
6975
6976 if (timeout == 0)
3071e181
JM		 6977 return;
6978
5f482d55
JM		 6979 if (timeout < 0) {
6980 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6981 timeout = 0; /* special client mode no-timeout */
6982 else
6983 return;
6984 }
6985
8c472816
JM		 6986 if (wpa_s->p2p_in_provisioning) {
6987 /*
6988 * Use the normal group formation timeout during the
6989 * provisioning phase to avoid terminating this process too
6990 * early due to group idle timeout.
6991 */
6992 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6993 "during provisioning");
6994 return;
6995 }
6996
361cdf34
JM		 6997 if (wpa_s->show_group_started) {
6998 /*
6999 * Use the normal group formation timeout between the end of
7000 * the provisioning phase and completion of 4-way handshake to
7001 * avoid terminating this process too early due to group idle
7002 * timeout.
7003 */
7004 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
7005 "while waiting for initial 4-way handshake to "
7006 "complete");
7007 return;
7008 }
7009
3071e181 7010 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
c8106615
JM		 7011 timeout);
7012 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
7013 wpa_s, NULL);
3071e181
JM		 7014}
7015
7016
0aadd568
JM		 7017/* Returns 1 if the interface was removed */
7018int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
7019 u16 reason_code, const u8 *ie, size_t ie_len,
7020 int locally_generated)
b22128ef 7021{
9526fd29 7022 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
0aadd568 7023 return 0;
b22128ef 7024
3fc14102
JM		 7025 if (!locally_generated)
7026 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7027 ie_len);
7028
7029 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
7030 wpa_s->current_ssid &&
7031 wpa_s->current_ssid->p2p_group &&
7032 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
7033 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
7034 "session is ending");
0aadd568
JM		 7035 if (wpas_p2p_group_delete(wpa_s,
7036 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
7037 > 0)
7038 return 1;
3fc14102 7039 }
0aadd568
JM		 7040
7041 return 0;
b22128ef
JM		 7042}
7043
7044
7045void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3fc14102
JM		 7046 u16 reason_code, const u8 *ie, size_t ie_len,
7047 int locally_generated)
b22128ef 7048{
9526fd29 7049 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 7050 return;
7051
3fc14102
JM		 7052 if (!locally_generated)
7053 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
7054 ie_len);
b22128ef
JM		 7055}
7056
7057
7058void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
7059{
7060 struct p2p_data *p2p = wpa_s->global->p2p;
7061
7062 if (p2p == NULL)
7063 return;
7064
4c010834
KL		 7065 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
7066 return;
7067
b22128ef
JM		 7068 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
7069 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
7070
2f646b6e
JB		 7071 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
7072 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
b22128ef 7073
b6e01800
JM		 7074 if (wpa_s->wps &&
7075 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
7076 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
7077
7078 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
7079 p2p_set_uuid(p2p, wpa_s->wps->uuid);
7080
7081 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
7082 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
7083 p2p_set_model_name(p2p, wpa_s->conf->model_name);
7084 p2p_set_model_number(p2p, wpa_s->conf->model_number);
7085 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
7086 }
7087
2f646b6e
JB		 7088 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
7089 p2p_set_sec_dev_types(p2p,
7090 (void *) wpa_s->conf->sec_device_type,
7091 wpa_s->conf->num_sec_device_types);
b22128ef 7092
f95cac27
JMB		 7093 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
7094 int i;
7095 p2p_remove_wps_vendor_extensions(p2p);
7096 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
7097 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
7098 continue;
7099 p2p_add_wps_vendor_extension(
7100 p2p, wpa_s->conf->wps_vendor_ext[i]);
7101 }
7102 }
7103
b22128ef
JM		 7104 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
7105 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
7106 char country[3];
7107 country[0] = wpa_s->conf->country[0];
7108 country[1] = wpa_s->conf->country[1];
7109 country[2] = 0x04;
7110 p2p_set_country(p2p, country);
7111 }
7112
7113 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
7114 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
7115 wpa_s->conf->p2p_ssid_postfix ?
7116 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
7117 0);
7118 }
0f66abd2
SS		 7119
7120 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
7121 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
2463ba70
JS		 7122
7123 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
7124 u8 reg_class, channel;
7125 int ret;
7126 unsigned int r;
e3bd6e9d
IP		 7127 u8 channel_forced;
7128
2463ba70
JS		 7129 if (wpa_s->conf->p2p_listen_reg_class &&
7130 wpa_s->conf->p2p_listen_channel) {
7131 reg_class = wpa_s->conf->p2p_listen_reg_class;
7132 channel = wpa_s->conf->p2p_listen_channel;
e3bd6e9d 7133 channel_forced = 1;
2463ba70
JS		 7134 } else {
7135 reg_class = 81;
7136 /*
7137 * Pick one of the social channels randomly as the
7138 * listen channel.
7139 */
df2508d7
JM		 7140 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7141 channel = 1;
7142 else
7143 channel = 1 + (r % 3) * 5;
e3bd6e9d 7144 channel_forced = 0;
2463ba70 7145 }
e3bd6e9d
IP		 7146 ret = p2p_set_listen_channel(p2p, reg_class, channel,
7147 channel_forced);
2463ba70
JS		 7148 if (ret)
7149 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
7150 "failed: %d", ret);
7151 }
7152 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
7153 u8 op_reg_class, op_channel, cfg_op_channel;
7154 int ret = 0;
7155 unsigned int r;
7156 if (wpa_s->conf->p2p_oper_reg_class &&
7157 wpa_s->conf->p2p_oper_channel) {
7158 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
7159 op_channel = wpa_s->conf->p2p_oper_channel;
7160 cfg_op_channel = 1;
7161 } else {
7162 op_reg_class = 81;
7163 /*
7164 * Use random operation channel from (1, 6, 11)
7165 *if no other preference is indicated.
7166 */
df2508d7
JM		 7167 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
7168 op_channel = 1;
7169 else
7170 op_channel = 1 + (r % 3) * 5;
2463ba70
JS		 7171 cfg_op_channel = 0;
7172 }
7173 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
7174 cfg_op_channel);
7175 if (ret)
7176 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
7177 "failed: %d", ret);
7178 }
21d996f7
JM		 7179
7180 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
7181 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
7182 wpa_s->conf->p2p_pref_chan) < 0) {
7183 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
7184 "update failed");
7185 }
556b30da
JM		 7186
7187 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
7188 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
7189 "update failed");
7190 }
21d996f7 7191 }
1b928f96
JM		 7192
7193 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
7194 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
b22128ef 7195}
aefb53bd
JM		 7196
7197
7198int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
7199 int duration)
7200{
7201 if (!wpa_s->ap_iface)
7202 return -1;
7203 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
7204 duration);
7205}
72044390
JM		 7206
7207
7208int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
7209{
9526fd29 7210 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
72044390 7211 return -1;
72044390
JM		 7212
7213 wpa_s->global->cross_connection = enabled;
7214 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
7215
7216 if (!enabled) {
7217 struct wpa_supplicant *iface;
7218
7219 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7220 {
7221 if (iface->cross_connect_enabled == 0)
7222 continue;
7223
7224 iface->cross_connect_enabled = 0;
7225 iface->cross_connect_in_use = 0;
92c4465b
JM		 7226 wpa_msg_global(iface->parent, MSG_INFO,
7227 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7228 iface->ifname,
7229 iface->cross_connect_uplink);
72044390
JM		 7230 }
7231 }
7232
7233 return 0;
7234}
7235
7236
7237static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
7238{
7239 struct wpa_supplicant *iface;
7240
7241 if (!uplink->global->cross_connection)
7242 return;
7243
7244 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7245 if (!iface->cross_connect_enabled)
7246 continue;
7247 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7248 0)
7249 continue;
7250 if (iface->ap_iface == NULL)
7251 continue;
7252 if (iface->cross_connect_in_use)
7253 continue;
7254
7255 iface->cross_connect_in_use = 1;
92c4465b
JM		 7256 wpa_msg_global(iface->parent, MSG_INFO,
7257 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7258 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 7259 }
7260}
7261
7262
7263static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
7264{
7265 struct wpa_supplicant *iface;
7266
7267 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
7268 if (!iface->cross_connect_enabled)
7269 continue;
7270 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
7271 0)
7272 continue;
7273 if (!iface->cross_connect_in_use)
7274 continue;
7275
92c4465b
JM		 7276 wpa_msg_global(iface->parent, MSG_INFO,
7277 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
7278 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 7279 iface->cross_connect_in_use = 0;
7280 }
7281}
7282
7283
7284void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
7285{
7286 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
7287 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
7288 wpa_s->cross_connect_disallowed)
7289 wpas_p2p_disable_cross_connect(wpa_s);
7290 else
7291 wpas_p2p_enable_cross_connect(wpa_s);
dddc7045
JM		 7292 if (!wpa_s->ap_iface &&
7293 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
7294 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
72044390
JM		 7295}
7296
7297
7298void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
7299{
7300 wpas_p2p_disable_cross_connect(wpa_s);
4c2c6751
JM		 7301 if (!wpa_s->ap_iface &&
7302 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
7303 wpa_s, NULL))
3071e181 7304 wpas_p2p_set_group_idle_timeout(wpa_s);
72044390
JM		 7305}
7306
7307
7308static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
7309{
7310 struct wpa_supplicant *iface;
7311
7312 if (!wpa_s->global->cross_connection)
7313 return;
7314
7315 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7316 if (iface == wpa_s)
7317 continue;
7318 if (iface->drv_flags &
7319 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
7320 continue;
42a69725
JM		 7321 if ((iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) &&
7322 iface != wpa_s->parent)
72044390
JM		 7323 continue;
7324
7325 wpa_s->cross_connect_enabled = 1;
7326 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
7327 sizeof(wpa_s->cross_connect_uplink));
7328 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
7329 "%s to %s whenever uplink is available",
7330 wpa_s->ifname, wpa_s->cross_connect_uplink);
7331
7332 if (iface->ap_iface || iface->current_ssid == NULL ||
7333 iface->current_ssid->mode != WPAS_MODE_INFRA ||
7334 iface->cross_connect_disallowed ||
7335 iface->wpa_state != WPA_COMPLETED)
7336 break;
7337
7338 wpa_s->cross_connect_in_use = 1;
92c4465b
JM		 7339 wpa_msg_global(wpa_s->parent, MSG_INFO,
7340 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
7341 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390
JM		 7342 break;
7343 }
7344}
b73bf0a7
JM		 7345
7346
7347int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
7348{
7349 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
7350 !wpa_s->p2p_in_provisioning)
7351 return 0; /* not P2P client operation */
7352
7353 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
7354 "session overlap");
148bb37f
JM		 7355 if (wpa_s != wpa_s->parent)
7356 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
d95c5994 7357 wpas_p2p_group_formation_failed(wpa_s, 0);
b73bf0a7
JM		 7358 return 1;
7359}
b5c9da8d
JM		 7360
7361
ace0fbdb
AS		 7362void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
7363{
7364 struct wpa_supplicant *wpa_s = eloop_ctx;
7365 wpas_p2p_notif_pbc_overlap(wpa_s);
7366}
7367
7368
3a8f008a
IP		 7369void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s,
7370 enum wpas_p2p_channel_update_trig trig)
b5c9da8d 7371{
51e9f228 7372 struct p2p_channels chan, cli_chan;
c2675c87
IP		 7373 struct wpa_used_freq_data *freqs = NULL;
7374 unsigned int num = wpa_s->num_multichan_concurrent;
b5c9da8d
JM		 7375
7376 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
7377 return;
7378
c2675c87
IP		 7379 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7380 if (!freqs)
7381 return;
7382
7383 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7384
b5c9da8d 7385 os_memset(&chan, 0, sizeof(chan));
51e9f228
JM		 7386 os_memset(&cli_chan, 0, sizeof(cli_chan));
7387 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
b5c9da8d
JM		 7388 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
7389 "channel list");
7390 return;
7391 }
7392
51e9f228 7393 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7b42862a 7394
c2675c87 7395 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7b42862a 7396
c2675c87
IP		 7397 /*
7398 * The used frequencies map changed, so it is possible that a GO is
7399 * using a channel that is no longer valid for P2P use. It is also
7400 * possible that due to policy consideration, it would be preferable to
7401 * move it to a frequency already used by other station interfaces.
7402 */
3a8f008a 7403 wpas_p2p_consider_moving_gos(wpa_s, freqs, num, trig);
c2675c87
IP		 7404
7405 os_free(freqs);
b5c9da8d 7406}
59eba7a2
JM		 7407
7408
50178335
JM		 7409static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
7410 struct wpa_scan_results *scan_res)
7411{
7412 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
7413}
7414
7415
59eba7a2
JM		 7416int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
7417{
7418 struct wpa_global *global = wpa_s->global;
7419 int found = 0;
231bbd03 7420 const u8 *peer;
59eba7a2 7421
9526fd29
JM		 7422 if (global->p2p == NULL)
7423 return -1;
7424
59eba7a2
JM		 7425 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
7426
7427 if (wpa_s->pending_interface_name[0] &&
7428 !is_zero_ether_addr(wpa_s->pending_interface_addr))
7429 found = 1;
7430
231bbd03
SS		 7431 peer = p2p_get_go_neg_peer(global->p2p);
7432 if (peer) {
7433 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
7434 MACSTR, MAC2STR(peer));
7435 p2p_unauthorize(global->p2p, peer);
75c208b9 7436 found = 1;
231bbd03
SS		 7437 }
7438
50178335
JM		 7439 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
7440 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
7441 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
7442 found = 1;
7443 }
7444
7445 if (wpa_s->pending_pd_before_join) {
7446 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
7447 wpa_s->pending_pd_before_join = 0;
7448 found = 1;
7449 }
7450
59eba7a2
JM		 7451 wpas_p2p_stop_find(wpa_s);
7452
7453 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
7454 if (wpa_s == global->p2p_group_formation &&
a0a9f3b0
JM		 7455 (wpa_s->p2p_in_provisioning ||
7456 wpa_s->parent->pending_interface_type ==
7457 WPA_IF_P2P_CLIENT)) {
59eba7a2
JM		 7458 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
7459 "formation found - cancelling",
7460 wpa_s->ifname);
7461 found = 1;
45fee6f0
SS		 7462 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7463 wpa_s->parent, NULL);
30b80389 7464 if (wpa_s->p2p_in_provisioning) {
d95c5994 7465 wpas_group_formation_completed(wpa_s, 0, 0);
30b80389
JM		 7466 break;
7467 }
8dba4aef
JM		 7468 wpas_p2p_group_delete(wpa_s,
7469 P2P_GROUP_REMOVAL_REQUESTED);
59eba7a2 7470 break;
f05cee97
JM		 7471 } else if (wpa_s->p2p_in_invitation) {
7472 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
7473 wpa_s->ifname);
7474 found = 1;
d95c5994 7475 wpas_p2p_group_formation_failed(wpa_s, 0);
59eba7a2
JM		 7476 }
7477 }
7478
7479 if (!found) {
7480 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
7481 return -1;
7482 }
7483
7484 return 0;
7485}
c973f386
JM		 7486
7487
7488void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
7489{
7490 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
7491 return;
7492
7493 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
7494 "being available anymore");
8dba4aef 7495 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
c973f386 7496}
7cfc4ac3
AGS		 7497
7498
7499void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
7500 int freq_24, int freq_5, int freq_overall)
7501{
7502 struct p2p_data *p2p = wpa_s->global->p2p;
152cff6b 7503 if (p2p == NULL)
7cfc4ac3
AGS		 7504 return;
7505 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
7506}
9d562b79
SS		 7507
7508
7509int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
7510{
7511 u8 peer[ETH_ALEN];
7512 struct p2p_data *p2p = wpa_s->global->p2p;
7513
152cff6b 7514 if (p2p == NULL)
9d562b79
SS		 7515 return -1;
7516
7517 if (hwaddr_aton(addr, peer))
7518 return -1;
7519
7520 return p2p_unauthorize(p2p, peer);
7521}
3103f345
JB		 7522
7523
7524/**
7525 * wpas_p2p_disconnect - Disconnect from a P2P Group
7526 * @wpa_s: Pointer to wpa_supplicant data
7527 * Returns: 0 on success, -1 on failure
7528 *
7529 * This can be used to disconnect from a group in which the local end is a P2P
7530 * Client or to end a P2P Group in case the local end is the Group Owner. If a
7531 * virtual network interface was created for this group, that interface will be
7532 * removed. Otherwise, only the configured P2P group network will be removed
7533 * from the interface.
7534 */
7535int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
7536{
7537
7538 if (wpa_s == NULL)
7539 return -1;
7540
0aadd568
JM		 7541 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
7542 -1 : 0;
3103f345 7543}
303f60d3
JM		 7544
7545
7546int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
7547{
ec01d5f6
JM		 7548 int ret;
7549
303f60d3
JM		 7550 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7551 return 0;
7552
ec01d5f6
JM		 7553 ret = p2p_in_progress(wpa_s->global->p2p);
7554 if (ret == 0) {
7555 /*
7556 * Check whether there is an ongoing WPS provisioning step (or
7557 * other parts of group formation) on another interface since
7558 * p2p_in_progress() does not report this to avoid issues for
7559 * scans during such provisioning step.
7560 */
7561 if (wpa_s->global->p2p_group_formation &&
7562 wpa_s->global->p2p_group_formation != wpa_s) {
7563 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
7564 "in group formation",
7565 wpa_s->global->p2p_group_formation->ifname);
7566 ret = 1;
7567 }
7568 }
7569
c1c0b35f 7570 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
151ab808
JB		 7571 struct os_reltime now;
7572 os_get_reltime(&now);
7573 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
7574 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
c1c0b35f
JM		 7575 /* Wait for the first client has expired */
7576 wpa_s->global->p2p_go_wait_client.sec = 0;
7577 } else {
7578 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
7579 ret = 1;
7580 }
7581 }
7582
ec01d5f6 7583 return ret;
303f60d3 7584}
502618f7
JM		 7585
7586
7587void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
7588 struct wpa_ssid *ssid)
502618f7
JM		 7589{
7590 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
7591 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7592 wpa_s->parent, NULL) > 0) {
eb6f8c2b
AC		 7593 /**
7594 * Remove the network by scheduling the group formation
7595 * timeout to happen immediately. The teardown code
7596 * needs to be scheduled to run asynch later so that we
7597 * don't delete data from under ourselves unexpectedly.
7598 * Calling wpas_p2p_group_formation_timeout directly
7599 * causes a series of crashes in WPS failure scenarios.
7600 */
502618f7
JM		 7601 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
7602 "P2P group network getting removed");
eb6f8c2b
AC		 7603 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
7604 wpa_s->parent, NULL);
502618f7
JM		 7605 }
7606}
87f841a1
JM		 7607
7608
7609struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
c427ac92
JM		 7610 const u8 *addr, const u8 *ssid,
7611 size_t ssid_len)
87f841a1
JM		 7612{
7613 struct wpa_ssid *s;
fbdcfd57 7614 size_t i;
87f841a1
JM		 7615
7616 for (s = wpa_s->conf->ssid; s; s = s->next) {
fbdcfd57
JM		 7617 if (s->disabled != 2)
7618 continue;
c427ac92
JM		 7619 if (ssid &&
7620 (ssid_len != s->ssid_len ||
7621 os_memcmp(ssid, s->ssid, ssid_len) != 0))
7622 continue;
01a57fe4
JM		 7623 if (addr == NULL) {
7624 if (s->mode == WPAS_MODE_P2P_GO)
7625 return s;
7626 continue;
7627 }
fbdcfd57
JM		 7628 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
7629 return s; /* peer is GO in the persistent group */
7630 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
7631 continue;
7632 for (i = 0; i < s->num_p2p_clients; i++) {
79cd993a 7633 if (os_memcmp(s->p2p_client_list + i * 2 * ETH_ALEN,
fbdcfd57
JM		 7634 addr, ETH_ALEN) == 0)
7635 return s; /* peer is P2P client in persistent
7636 * group */
7637 }
87f841a1
JM		 7638 }
7639
7640 return NULL;
7641}
fbdcfd57
JM		 7642
7643
7644void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
7645 const u8 *addr)
7646{
eab2b50d
JM		 7647 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
7648 wpa_s->parent, NULL) > 0) {
7649 /*
7650 * This can happen if WPS provisioning step is not terminated
7651 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
7652 * peer was able to connect, there is no need to time out group
41f85323
JM		 7653 * formation after this, though. In addition, this is used with
7654 * the initial connection wait on the GO as a separate formation
7655 * timeout and as such, expected to be hit after the initial WPS
7656 * provisioning step.
eab2b50d 7657 */
41f85323 7658 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
61fc9048
SD		 7659
7660 if (!wpa_s->p2p_go_group_formation_completed &&
7661 !wpa_s->group_formation_reported) {
7662 /*
7663 * GO has not yet notified group formation success since
7664 * the WPS step was not completed cleanly. Do that
7665 * notification now since the P2P Client was able to
7666 * connect and as such, must have received the
7667 * credential from the WPS step.
7668 */
7669 if (wpa_s->global->p2p)
7670 p2p_wps_success_cb(wpa_s->global->p2p, addr);
d95c5994 7671 wpas_group_formation_completed(wpa_s, 1, 0);
61fc9048 7672 }
41f85323
JM		 7673 }
7674 if (!wpa_s->p2p_go_group_formation_completed) {
7675 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
7676 wpa_s->p2p_go_group_formation_completed = 1;
7677 wpa_s->global->p2p_group_formation = NULL;
7678 wpa_s->p2p_in_provisioning = 0;
f05cee97 7679 wpa_s->p2p_in_invitation = 0;
eab2b50d 7680 }
c1c0b35f 7681 wpa_s->global->p2p_go_wait_client.sec = 0;
fbdcfd57
JM		 7682 if (addr == NULL)
7683 return;
7684 wpas_p2p_add_persistent_group_client(wpa_s, addr);
7685}
aa9bb764
JM		 7686
7687
b0e669be
JM		 7688static int wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
7689 int group_added)
aa9bb764
JM		 7690{
7691 struct wpa_supplicant *group = wpa_s;
b0e669be
JM		 7692 int ret = 0;
7693
aa9bb764
JM		 7694 if (wpa_s->global->p2p_group_formation)
7695 group = wpa_s->global->p2p_group_formation;
de7b02fd 7696 wpa_s = wpa_s->global->p2p_init_wpa_s;
b80eb89d 7697 offchannel_send_action_done(wpa_s);
aa9bb764 7698 if (group_added)
b0e669be 7699 ret = wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
aa9bb764
JM		 7700 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
7701 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
7702 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
7703 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
3bc462cb 7704 wpa_s->p2p_persistent_id,
e2308e4b 7705 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 7706 wpa_s->p2p_go_ht40,
7707 wpa_s->p2p_go_vht);
b0e669be 7708 return ret;
aa9bb764
JM		 7709}
7710
7711
7712int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
7713{
b0e669be
JM		 7714 int res;
7715
aa9bb764
JM		 7716 if (!wpa_s->p2p_fallback_to_go_neg ||
7717 wpa_s->p2p_in_provisioning <= 5)
7718 return 0;
7719
b80eb89d
JM		 7720 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
7721 return 0; /* peer operating as a GO */
7722
aa9bb764
JM		 7723 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
7724 "fallback to GO Negotiation");
6b005121
JM		 7725 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_FALLBACK_TO_GO_NEG
7726 "reason=GO-not-found");
b0e669be 7727 res = wpas_p2p_fallback_to_go_neg(wpa_s, 1);
aa9bb764 7728
b0e669be 7729 return res == 1 ? 2 : 1;
aa9bb764 7730}
05a77b3b
JM		 7731
7732
7733unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
7734{
05a77b3b
JM		 7735 struct wpa_supplicant *ifs;
7736
7737 if (wpa_s->wpa_state > WPA_SCANNING) {
7738 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
7739 "concurrent operation",
d3b20469
NS		 7740 wpa_s->conf->p2p_search_delay);
7741 return wpa_s->conf->p2p_search_delay;
05a77b3b
JM		 7742 }
7743
5b81927d
JM		 7744 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
7745 radio_list) {
7746 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
05a77b3b
JM		 7747 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
7748 "delay due to concurrent operation on "
7749 "interface %s",
d3b20469
NS		 7750 wpa_s->conf->p2p_search_delay,
7751 ifs->ifname);
7752 return wpa_s->conf->p2p_search_delay;
05a77b3b
JM		 7753 }
7754 }
7755
7756 return 0;
7757}
f85f545e
JM		 7758
7759
43c693c2
JM		 7760static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
7761 struct wpa_ssid *s, const u8 *addr,
7762 int iface_addr)
7763{
7764 struct psk_list_entry *psk, *tmp;
7765 int changed = 0;
7766
7767 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7768 list) {
7769 if ((iface_addr && !psk->p2p &&
7770 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7771 (!iface_addr && psk->p2p &&
7772 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7773 wpa_dbg(wpa_s, MSG_DEBUG,
7774 "P2P: Remove persistent group PSK list entry for "
7775 MACSTR " p2p=%u",
7776 MAC2STR(psk->addr), psk->p2p);
7777 dl_list_del(&psk->list);
7778 os_free(psk);
7779 changed++;
7780 }
7781 }
7782
7783 return changed;
7784}
7785
7786
01a57fe4
JM		 7787void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7788 const u8 *p2p_dev_addr,
7789 const u8 *psk, size_t psk_len)
7790{
7791 struct wpa_ssid *ssid = wpa_s->current_ssid;
7792 struct wpa_ssid *persistent;
0bceb8d6 7793 struct psk_list_entry *p, *last;
01a57fe4
JM		 7794
7795 if (psk_len != sizeof(p->psk))
7796 return;
7797
7798 if (p2p_dev_addr) {
7799 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7800 " p2p_dev_addr=" MACSTR,
7801 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7802 if (is_zero_ether_addr(p2p_dev_addr))
7803 p2p_dev_addr = NULL;
7804 } else {
7805 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7806 MAC2STR(mac_addr));
7807 }
7808
7809 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7810 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7811 /* To be added to persistent group once created */
7812 if (wpa_s->global->add_psk == NULL) {
7813 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7814 if (wpa_s->global->add_psk == NULL)
7815 return;
7816 }
7817 p = wpa_s->global->add_psk;
7818 if (p2p_dev_addr) {
7819 p->p2p = 1;
7820 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7821 } else {
7822 p->p2p = 0;
7823 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7824 }
7825 os_memcpy(p->psk, psk, psk_len);
7826 return;
7827 }
7828
7829 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7830 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7831 return;
7832 }
7833
7834 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7835 ssid->ssid_len);
7836 if (!persistent) {
7837 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7838 return;
7839 }
7840
7841 p = os_zalloc(sizeof(*p));
7842 if (p == NULL)
7843 return;
7844 if (p2p_dev_addr) {
7845 p->p2p = 1;
7846 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7847 } else {
7848 p->p2p = 0;
7849 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7850 }
7851 os_memcpy(p->psk, psk, psk_len);
7852
0bceb8d6
JM		 7853 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7854 (last = dl_list_last(&persistent->psk_list,
7855 struct psk_list_entry, list))) {
01a57fe4
JM		 7856 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7857 MACSTR " (p2p=%u) to make room for a new one",
7858 MAC2STR(last->addr), last->p2p);
7859 dl_list_del(&last->list);
7860 os_free(last);
7861 }
7862
43c693c2
JM		 7863 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7864 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7865 p2p_dev_addr == NULL);
7866 if (p2p_dev_addr) {
7867 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7868 MACSTR, MAC2STR(p2p_dev_addr));
7869 } else {
7870 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7871 MAC2STR(mac_addr));
7872 }
01a57fe4
JM		 7873 dl_list_add(&persistent->psk_list, &p->list);
7874
01a57fe4
JM		 7875 if (wpa_s->parent->conf->update_config &&
7876 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7877 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
01a57fe4 7878}
f2c56602
JM		 7879
7880
7881static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7882 struct wpa_ssid *s, const u8 *addr,
7883 int iface_addr)
7884{
43c693c2 7885 int res;
f2c56602 7886
43c693c2 7887 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
2a33687e
JM		 7888 if (res > 0 && wpa_s->conf->update_config &&
7889 wpa_config_write(wpa_s->confname, wpa_s->conf))
7890 wpa_dbg(wpa_s, MSG_DEBUG,
7891 "P2P: Failed to update configuration");
f2c56602
JM		 7892}
7893
7894
7895static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7896 const u8 *peer, int iface_addr)
7897{
7898 struct hostapd_data *hapd;
7899 struct hostapd_wpa_psk *psk, *prev, *rem;
7900 struct sta_info *sta;
7901
7902 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7903 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7904 return;
7905
7906 /* Remove per-station PSK entry */
7907 hapd = wpa_s->ap_iface->bss[0];
7908 prev = NULL;
7909 psk = hapd->conf->ssid.wpa_psk;
7910 while (psk) {
7911 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7912 (!iface_addr &&
7913 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7914 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7915 MACSTR " iface_addr=%d",
7916 MAC2STR(peer), iface_addr);
7917 if (prev)
7918 prev->next = psk->next;
7919 else
7920 hapd->conf->ssid.wpa_psk = psk->next;
7921 rem = psk;
7922 psk = psk->next;
7923 os_free(rem);
7924 } else {
7925 prev = psk;
7926 psk = psk->next;
7927 }
7928 }
7929
7930 /* Disconnect from group */
7931 if (iface_addr)
7932 sta = ap_get_sta(hapd, peer);
7933 else
7934 sta = ap_get_sta_p2p(hapd, peer);
7935 if (sta) {
7936 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7937 " (iface_addr=%d) from group",
7938 MAC2STR(peer), iface_addr);
7939 hostapd_drv_sta_deauth(hapd, sta->addr,
7940 WLAN_REASON_DEAUTH_LEAVING);
7941 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7942 }
7943}
7944
7945
7946void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7947 int iface_addr)
7948{
7949 struct wpa_ssid *s;
7950 struct wpa_supplicant *w;
43677494 7951 struct wpa_supplicant *p2p_wpa_s = wpa_s->global->p2p_init_wpa_s;
f2c56602
JM		 7952
7953 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7954
7955 /* Remove from any persistent group */
43677494 7956 for (s = p2p_wpa_s->conf->ssid; s; s = s->next) {
f2c56602
JM		 7957 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7958 continue;
7959 if (!iface_addr)
43677494
BR		 7960 wpas_remove_persistent_peer(p2p_wpa_s, s, peer, 0);
7961 wpas_p2p_remove_psk(p2p_wpa_s, s, peer, iface_addr);
f2c56602
JM		 7962 }
7963
7964 /* Remove from any operating group */
7965 for (w = wpa_s->global->ifaces; w; w = w->next)
7966 wpas_p2p_remove_client_go(w, peer, iface_addr);
7967}
5bf9a6c8
JM		 7968
7969
813e7b36
JM		 7970static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7971{
7972 struct wpa_supplicant *wpa_s = eloop_ctx;
7973 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7974}
7975
7976
8567866d
JJ		 7977static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7978{
7979 struct wpa_supplicant *wpa_s = eloop_ctx;
7980
7981 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7982 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7983}
7984
7985
7986int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7987 struct wpa_ssid *ssid)
7988{
7989 struct wpa_supplicant *iface;
7990
7991 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7992 if (!iface->current_ssid ||
7993 iface->current_ssid->frequency == freq ||
7994 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7995 !iface->current_ssid->p2p_group))
7996 continue;
7997
7998 /* Remove the connection with least priority */
7999 if (!wpas_is_p2p_prioritized(iface)) {
8000 /* STA connection has priority over existing
8001 * P2P connection, so remove the interface. */
8002 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
8003 eloop_register_timeout(0, 0,
8004 wpas_p2p_group_freq_conflict,
8005 iface, NULL);
8006 /* If connection in progress is P2P connection, do not
8007 * proceed for the connection. */
8008 if (wpa_s == iface)
8009 return -1;
8010 else
8011 return 0;
8012 } else {
8013 /* P2P connection has priority, disable the STA network
8014 */
8015 wpa_supplicant_disable_network(wpa_s->global->ifaces,
8016 ssid);
8017 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
8018 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
8019 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
8020 ETH_ALEN);
8021 /* If P2P connection is in progress, continue
8022 * connecting...*/
8023 if (wpa_s == iface)
8024 return 0;
8025 else
8026 return -1;
8027 }
8028 }
8029
8030 return 0;
8031}
8032
8033
5bf9a6c8
JM		 8034int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
8035{
8036 struct wpa_ssid *ssid = wpa_s->current_ssid;
8037
8038 if (ssid == NULL || !ssid->p2p_group)
8039 return 0;
8040
8041 if (wpa_s->p2p_last_4way_hs_fail &&
8042 wpa_s->p2p_last_4way_hs_fail == ssid) {
8043 u8 go_dev_addr[ETH_ALEN];
8044 struct wpa_ssid *persistent;
8045
8046 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
8047 ssid->ssid,
8048 ssid->ssid_len) <= 0) {
8049 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
8050 goto disconnect;
8051 }
8052
8053 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
8054 MACSTR, MAC2STR(go_dev_addr));
8055 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
8056 ssid->ssid,
8057 ssid->ssid_len);
8058 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
8059 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
8060 goto disconnect;
8061 }
8062 wpa_msg_global(wpa_s->parent, MSG_INFO,
8063 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
8064 persistent->id);
8065 disconnect:
8066 wpa_s->p2p_last_4way_hs_fail = NULL;
813e7b36
JM		 8067 /*
8068 * Remove the group from a timeout to avoid issues with caller
8069 * continuing to use the interface if this is on a P2P group
8070 * interface.
8071 */
8072 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
8073 wpa_s, NULL);
5bf9a6c8
JM		 8074 return 1;
8075 }
8076
8077 wpa_s->p2p_last_4way_hs_fail = ssid;
8078 return 0;
8079}
93588780
JM		 8080
8081
8082#ifdef CONFIG_WPS_NFC
8083
8084static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
8085 struct wpabuf *p2p)
8086{
8087 struct wpabuf *ret;
59b45d1a 8088 size_t wsc_len;
93588780
JM		 8089
8090 if (p2p == NULL) {
8091 wpabuf_free(wsc);
8092 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
8093 return NULL;
8094 }
8095
59b45d1a
JM		 8096 wsc_len = wsc ? wpabuf_len(wsc) : 0;
8097 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
93588780
JM		 8098 if (ret == NULL) {
8099 wpabuf_free(wsc);
8100 wpabuf_free(p2p);
8101 return NULL;
8102 }
8103
59b45d1a
JM		 8104 wpabuf_put_be16(ret, wsc_len);
8105 if (wsc)
8106 wpabuf_put_buf(ret, wsc);
93588780
JM		 8107 wpabuf_put_be16(ret, wpabuf_len(p2p));
8108 wpabuf_put_buf(ret, p2p);
8109
8110 wpabuf_free(wsc);
8111 wpabuf_free(p2p);
8112 wpa_hexdump_buf(MSG_DEBUG,
8113 "P2P: Generated NFC connection handover message", ret);
8114
8115 if (ndef && ret) {
8116 struct wpabuf *tmp;
8117 tmp = ndef_build_p2p(ret);
8118 wpabuf_free(ret);
8119 if (tmp == NULL) {
8120 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
8121 return NULL;
8122 }
8123 ret = tmp;
8124 }
8125
8126 return ret;
8127}
8128
8129
abe44e3c
JM		 8130static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
8131 struct wpa_ssid **ssid, u8 *go_dev_addr)
59b45d1a
JM		 8132{
8133 struct wpa_supplicant *iface;
8134
abe44e3c
JM		 8135 if (go_dev_addr)
8136 os_memset(go_dev_addr, 0, ETH_ALEN);
8137 if (ssid)
8138 *ssid = NULL;
59b45d1a
JM		 8139 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8140 if (iface->wpa_state < WPA_ASSOCIATING ||
8141 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
8142 !iface->current_ssid->p2p_group ||
8143 iface->current_ssid->mode != WPAS_MODE_INFRA)
8144 continue;
abe44e3c
JM		 8145 if (ssid)
8146 *ssid = iface->current_ssid;
8147 if (go_dev_addr)
8148 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
59b45d1a
JM		 8149 return iface->assoc_freq;
8150 }
8151 return 0;
8152}
8153
8154
93588780
JM		 8155struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
8156 int ndef)
8157{
8158 struct wpabuf *wsc, *p2p;
abe44e3c
JM		 8159 struct wpa_ssid *ssid;
8160 u8 go_dev_addr[ETH_ALEN];
8161 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
93588780
JM		 8162
8163 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
8164 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
8165 return NULL;
8166 }
8167
8168 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8169 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8170 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
8171 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
8172 return NULL;
8173 }
8174
59b45d1a
JM		 8175 if (cli_freq == 0) {
8176 wsc = wps_build_nfc_handover_req_p2p(
8177 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
8178 } else
8179 wsc = NULL;
abe44e3c
JM		 8180 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
8181 go_dev_addr, ssid ? ssid->ssid : NULL,
8182 ssid ? ssid->ssid_len : 0);
93588780
JM		 8183
8184 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8185}
8186
8187
8188struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
8189 int ndef, int tag)
8190{
8191 struct wpabuf *wsc, *p2p;
abe44e3c
JM		 8192 struct wpa_ssid *ssid;
8193 u8 go_dev_addr[ETH_ALEN];
8194 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
93588780
JM		 8195
8196 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8197 return NULL;
8198
8199 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8200 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8201 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8202 return NULL;
8203
59b45d1a
JM		 8204 if (cli_freq == 0) {
8205 wsc = wps_build_nfc_handover_sel_p2p(
8206 wpa_s->parent->wps,
8207 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
8208 DEV_PW_NFC_CONNECTION_HANDOVER,
8209 wpa_s->conf->wps_nfc_dh_pubkey,
8210 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
8211 } else
8212 wsc = NULL;
abe44e3c
JM		 8213 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
8214 go_dev_addr, ssid ? ssid->ssid : NULL,
8215 ssid ? ssid->ssid_len : 0);
93588780
JM		 8216
8217 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
8218}
8219
db6ae69e
JM		 8220
8221static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
8222 struct p2p_nfc_params *params)
8223{
8224 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
23318bea
JM		 8225 "connection handover (freq=%d)",
8226 params->go_freq);
8227
8228 if (params->go_freq && params->go_ssid_len) {
8229 wpa_s->p2p_wps_method = WPS_NFC;
8230 wpa_s->pending_join_wps_method = WPS_NFC;
8231 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
8232 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
8233 ETH_ALEN);
8234 return wpas_p2p_join_start(wpa_s, params->go_freq,
8235 params->go_ssid,
8236 params->go_ssid_len);
8237 }
8238
db6ae69e
JM		 8239 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8240 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
23318bea 8241 params->go_freq, -1, 0, 1, 1);
db6ae69e
JM		 8242}
8243
8244
8245static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8e9f53c3 8246 struct p2p_nfc_params *params, int tag)
db6ae69e 8247{
8e9f53c3
JM		 8248 int res, persistent;
8249 struct wpa_ssid *ssid;
8250
db6ae69e
JM		 8251 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
8252 "connection handover");
8253 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8e9f53c3 8254 ssid = wpa_s->current_ssid;
db6ae69e
JM		 8255 if (ssid == NULL)
8256 continue;
8257 if (ssid->mode != WPAS_MODE_P2P_GO)
8258 continue;
8259 if (wpa_s->ap_iface == NULL)
8260 continue;
8261 break;
8262 }
8263 if (wpa_s == NULL) {
8264 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
8265 return -1;
8266 }
8267
8268 if (wpa_s->parent->p2p_oob_dev_pw_id !=
8269 DEV_PW_NFC_CONNECTION_HANDOVER &&
8270 !wpa_s->parent->p2p_oob_dev_pw) {
8271 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
8272 return -1;
8273 }
8e9f53c3 8274 res = wpas_ap_wps_add_nfc_pw(
db6ae69e
JM		 8275 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
8276 wpa_s->parent->p2p_oob_dev_pw,
8277 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
8278 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8e9f53c3
JM		 8279 if (res)
8280 return res;
8281
8282 if (!tag) {
8283 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
8284 return 0;
8285 }
8286
8287 if (!params->peer ||
8288 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
8289 return 0;
8290
8291 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
8292 " to join", MAC2STR(params->peer->p2p_device_addr));
8293
8294 wpa_s->global->p2p_invite_group = wpa_s;
8295 persistent = ssid->p2p_persistent_group &&
8296 wpas_p2p_get_persistent(wpa_s->parent,
8297 params->peer->p2p_device_addr,
8298 ssid->ssid, ssid->ssid_len);
8299 wpa_s->parent->pending_invite_ssid_id = -1;
8300
8301 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
8302 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
8303 ssid->ssid, ssid->ssid_len, ssid->frequency,
8304 wpa_s->global->p2p_dev_addr, persistent, 0,
8305 wpa_s->parent->p2p_oob_dev_pw_id);
db6ae69e
JM		 8306}
8307
8308
8309static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
b56f6c88
JM		 8310 struct p2p_nfc_params *params,
8311 int forced_freq)
db6ae69e
JM		 8312{
8313 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
8314 "connection handover");
8315 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8316 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
b56f6c88 8317 forced_freq, -1, 0, 1, 1);
db6ae69e
JM		 8318}
8319
8320
8321static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
b56f6c88
JM		 8322 struct p2p_nfc_params *params,
8323 int forced_freq)
db6ae69e
JM		 8324{
8325 int res;
8326
8327 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
8328 "connection handover");
8329 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
8330 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
b56f6c88 8331 forced_freq, -1, 0, 1, 1);
db6ae69e
JM		 8332 if (res)
8333 return res;
8334
8335 res = wpas_p2p_listen(wpa_s, 60);
8336 if (res) {
8337 p2p_unauthorize(wpa_s->global->p2p,
8338 params->peer->p2p_device_addr);
8339 }
8340
8341 return res;
8342}
8343
8344
8345static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
8346 const struct wpabuf *data,
b56f6c88 8347 int sel, int tag, int forced_freq)
db6ae69e
JM		 8348{
8349 const u8 *pos, *end;
8350 u16 len, id;
8351 struct p2p_nfc_params params;
8352 int res;
8353
8354 os_memset(&params, 0, sizeof(params));
8355 params.sel = sel;
8356
8357 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
8358
8359 pos = wpabuf_head(data);
8360 end = pos + wpabuf_len(data);
8361
8362 if (end - pos < 2) {
8363 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
8364 "attributes");
8365 return -1;
8366 }
8367 len = WPA_GET_BE16(pos);
8368 pos += 2;
c061ae59 8369 if (len > end - pos) {
db6ae69e
JM		 8370 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
8371 "attributes");
8372 return -1;
8373 }
8374 params.wsc_attr = pos;
8375 params.wsc_len = len;
8376 pos += len;
8377
8378 if (end - pos < 2) {
8379 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
8380 "attributes");
8381 return -1;
8382 }
8383 len = WPA_GET_BE16(pos);
8384 pos += 2;
c061ae59 8385 if (len > end - pos) {
db6ae69e
JM		 8386 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
8387 "attributes");
8388 return -1;
8389 }
8390 params.p2p_attr = pos;
8391 params.p2p_len = len;
8392 pos += len;
8393
8394 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
8395 params.wsc_attr, params.wsc_len);
8396 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
8397 params.p2p_attr, params.p2p_len);
8398 if (pos < end) {
8399 wpa_hexdump(MSG_DEBUG,
8400 "P2P: Ignored extra data after P2P attributes",
8401 pos, end - pos);
8402 }
8403
8404 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, &params);
8405 if (res)
8406 return res;
8407
74df9ecd
JM		 8408 if (params.next_step == NO_ACTION)
8409 return 0;
8410
8411 if (params.next_step == BOTH_GO) {
8412 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
8413 MAC2STR(params.peer->p2p_device_addr));
8414 return 0;
8415 }
8416
59b45d1a 8417 if (params.next_step == PEER_CLIENT) {
abe44e3c
JM		 8418 if (!is_zero_ether_addr(params.go_dev_addr)) {
8419 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8420 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
8421 " ssid=\"%s\"",
8422 MAC2STR(params.peer->p2p_device_addr),
8423 params.go_freq,
8424 MAC2STR(params.go_dev_addr),
8425 wpa_ssid_txt(params.go_ssid,
8426 params.go_ssid_len));
8427 } else {
8428 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
8429 "peer=" MACSTR " freq=%d",
8430 MAC2STR(params.peer->p2p_device_addr),
8431 params.go_freq);
8432 }
59b45d1a
JM		 8433 return 0;
8434 }
8435
abe44e3c 8436 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
59b45d1a
JM		 8437 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
8438 MACSTR, MAC2STR(params.peer->p2p_device_addr));
8439 return 0;
8440 }
8441
db6ae69e
JM		 8442 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8443 wpa_s->p2p_oob_dev_pw = NULL;
8444
8445 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
8446 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
8447 "received");
8448 return -1;
8449 }
8450
8451 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
8452 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
8453 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
8454 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8455 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
8456 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
8457 wpa_s->p2p_peer_oob_pk_hash_known = 1;
8458
8459 if (tag) {
8460 if (id < 0x10) {
8461 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
8462 "peer OOB Device Password Id %u", id);
8463 return -1;
8464 }
8465 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
8466 "Device Password Id %u", id);
8467 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
8468 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8469 params.oob_dev_pw_len -
8470 WPS_OOB_PUBKEY_HASH_LEN - 2);
8471 wpa_s->p2p_oob_dev_pw_id = id;
8472 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
8473 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
8474 params.oob_dev_pw_len -
8475 WPS_OOB_PUBKEY_HASH_LEN - 2);
8476 if (wpa_s->p2p_oob_dev_pw == NULL)
8477 return -1;
8478
8479 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
8480 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
8481 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
8482 return -1;
8483 } else {
8484 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
8485 "without Device Password");
8486 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
8487 }
8488
8489 switch (params.next_step) {
8490 case NO_ACTION:
74df9ecd 8491 case BOTH_GO:
59b45d1a 8492 case PEER_CLIENT:
74df9ecd 8493 /* already covered above */
db6ae69e
JM		 8494 return 0;
8495 case JOIN_GROUP:
8496 return wpas_p2p_nfc_join_group(wpa_s, &params);
8497 case AUTH_JOIN:
8e9f53c3 8498 return wpas_p2p_nfc_auth_join(wpa_s, &params, tag);
db6ae69e 8499 case INIT_GO_NEG:
b56f6c88 8500 return wpas_p2p_nfc_init_go_neg(wpa_s, &params, forced_freq);
db6ae69e
JM		 8501 case RESP_GO_NEG:
8502 /* TODO: use own OOB Dev Pw */
b56f6c88 8503 return wpas_p2p_nfc_resp_go_neg(wpa_s, &params, forced_freq);
db6ae69e
JM		 8504 }
8505
8506 return -1;
8507}
8508
8509
dd37a938 8510int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
b56f6c88 8511 const struct wpabuf *data, int forced_freq)
dd37a938
JM		 8512{
8513 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8514 return -1;
8515
b56f6c88 8516 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
dd37a938
JM		 8517}
8518
8519
db6ae69e
JM		 8520int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
8521 const struct wpabuf *req,
b56f6c88 8522 const struct wpabuf *sel, int forced_freq)
db6ae69e
JM		 8523{
8524 struct wpabuf *tmp;
8525 int ret;
8526
8527 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
8528 return -1;
8529
8530 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
8531
8532 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
8533 wpabuf_head(req), wpabuf_len(req));
8534 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
8535 wpabuf_head(sel), wpabuf_len(sel));
b56f6c88
JM		 8536 if (forced_freq)
8537 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
db6ae69e
JM		 8538 tmp = ndef_parse_p2p(init ? sel : req);
8539 if (tmp == NULL) {
8540 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
8541 return -1;
8542 }
8543
b56f6c88
JM		 8544 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
8545 forced_freq);
db6ae69e
JM		 8546 wpabuf_free(tmp);
8547
8548 return ret;
8549}
8550
c4f87a70
JM		 8551
8552int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
8553{
8554 const u8 *if_addr;
8555 int go_intent = wpa_s->conf->p2p_go_intent;
dd876771 8556 struct wpa_supplicant *iface;
c4f87a70
JM		 8557
8558 if (wpa_s->global->p2p == NULL)
8559 return -1;
8560
8561 if (!enabled) {
dd876771
JM		 8562 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
8563 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
8564 {
8565 if (!iface->ap_iface)
8566 continue;
8567 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
8568 }
c4f87a70
JM		 8569 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
8570 0, NULL);
8571 if (wpa_s->p2p_nfc_tag_enabled)
8572 wpas_p2p_remove_pending_group_interface(wpa_s);
8573 wpa_s->p2p_nfc_tag_enabled = 0;
8574 return 0;
8575 }
8576
8577 if (wpa_s->global->p2p_disabled)
8578 return -1;
8579
8580 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
8581 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
8582 wpa_s->conf->wps_nfc_dev_pw == NULL ||
8583 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
8584 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
8585 "to allow static handover cases");
8586 return -1;
8587 }
8588
dd876771
JM		 8589 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
8590
c4f87a70
JM		 8591 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8592 wpabuf_free(wpa_s->p2p_oob_dev_pw);
8593 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8594 if (wpa_s->p2p_oob_dev_pw == NULL)
8595 return -1;
8596 wpa_s->p2p_peer_oob_pk_hash_known = 0;
8597
67d39cfb
MB		 8598 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
8599 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
8600 /*
8601 * P2P Group Interface present and the command came on group
8602 * interface, so enable the token for the current interface.
8603 */
8604 wpa_s->create_p2p_iface = 0;
8605 } else {
8606 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
8607 }
c4f87a70
JM		 8608
8609 if (wpa_s->create_p2p_iface) {
8610 enum wpa_driver_if_type iftype;
8611 /* Prepare to add a new interface for the group */
8612 iftype = WPA_IF_P2P_GROUP;
8613 if (go_intent == 15)
8614 iftype = WPA_IF_P2P_GO;
8615 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
8616 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
8617 "interface for the group");
8618 return -1;
8619 }
8620
8621 if_addr = wpa_s->pending_interface_addr;
8622 } else
8623 if_addr = wpa_s->own_addr;
8624
8625 wpa_s->p2p_nfc_tag_enabled = enabled;
8626
dd876771
JM		 8627 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
8628 struct hostapd_data *hapd;
8629 if (iface->ap_iface == NULL)
8630 continue;
8631 hapd = iface->ap_iface->bss[0];
8632 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
8633 hapd->conf->wps_nfc_dh_pubkey =
8634 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
8635 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
8636 hapd->conf->wps_nfc_dh_privkey =
8637 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
8638 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
8639 hapd->conf->wps_nfc_dev_pw =
8640 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
8641 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
8642
8643 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
8644 wpa_dbg(iface, MSG_DEBUG,
8645 "P2P: Failed to enable NFC Tag for GO");
8646 }
8647 }
c4f87a70
JM		 8648 p2p_set_authorized_oob_dev_pw_id(
8649 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
8650 if_addr);
8651
8652 return 0;
8653}
8654
93588780 8655#endif /* CONFIG_WPS_NFC */
e3bd6e9d
IP		 8656
8657
8658static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
8659 struct wpa_used_freq_data *freqs,
8660 unsigned int num)
8661{
8662 u8 curr_chan, cand, chan;
8663 unsigned int i;
8664
c2675c87
IP		 8665 /*
8666 * If possible, optimize the Listen channel to be a channel that is
8667 * already used by one of the other interfaces.
8668 */
8669 if (!wpa_s->conf->p2p_optimize_listen_chan)
8670 return;
8671
8672 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
8673 return;
8674
e3bd6e9d
IP		 8675 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
8676 for (i = 0, cand = 0; i < num; i++) {
8677 ieee80211_freq_to_chan(freqs[i].freq, &chan);
8678 if (curr_chan == chan) {
8679 cand = 0;
8680 break;
8681 }
8682
8683 if (chan == 1 || chan == 6 || chan == 11)
8684 cand = chan;
8685 }
8686
8687 if (cand) {
8688 wpa_dbg(wpa_s, MSG_DEBUG,
abe96d06 8689 "P2P: Update Listen channel to %u based on operating channel",
e3bd6e9d
IP		 8690 cand);
8691 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
8692 }
8693}
8694
8695
1a471ff0
IP		 8696static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
8697{
73afc20d
AO		 8698 struct hostapd_config *conf;
8699 struct p2p_go_neg_results params;
8700 struct csa_settings csa_settings;
8701 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8702 int old_freq = current_ssid->frequency;
8703 int ret;
73afc20d 8704
1a471ff0
IP		 8705 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
8706 wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
8707 return -1;
8708 }
8709
73afc20d
AO		 8710 /*
8711 * TODO: This function may not always work correctly. For example,
8712 * when we have a running GO and a BSS on a DFS channel.
8713 */
8714 if (wpas_p2p_init_go_params(wpa_s, &params, 0, 0, 0, NULL)) {
8715 wpa_dbg(wpa_s, MSG_DEBUG,
8716 "P2P CSA: Failed to select new frequency for GO");
8717 return -1;
8718 }
8719
8720 if (current_ssid->frequency == params.freq) {
8721 wpa_dbg(wpa_s, MSG_DEBUG,
8722 "P2P CSA: Selected same frequency - not moving GO");
8723 return 0;
8724 }
8725
8726 conf = hostapd_config_defaults();
8727 if (!conf) {
8728 wpa_dbg(wpa_s, MSG_DEBUG,
8729 "P2P CSA: Failed to allocate default config");
8730 return -1;
8731 }
8732
8733 current_ssid->frequency = params.freq;
8734 if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
8735 wpa_dbg(wpa_s, MSG_DEBUG,
8736 "P2P CSA: Failed to create new GO config");
8737 ret = -1;
8738 goto out;
8739 }
8740
8741 if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
8742 wpa_dbg(wpa_s, MSG_DEBUG,
8743 "P2P CSA: CSA to a different band is not supported");
8744 ret = -1;
8745 goto out;
8746 }
8747
8748 os_memset(&csa_settings, 0, sizeof(csa_settings));
8749 csa_settings.cs_count = P2P_GO_CSA_COUNT;
8750 csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
8751 csa_settings.freq_params.freq = params.freq;
73afc20d
AO		 8752 csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
8753 csa_settings.freq_params.ht_enabled = conf->ieee80211n;
8754 csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
8755
8756 if (conf->ieee80211ac) {
8757 int freq1 = 0, freq2 = 0;
7d82170a
LC		 8758 u8 chan, opclass;
8759
8760 if (ieee80211_freq_to_channel_ext(params.freq,
8761 conf->secondary_channel,
8762 conf->vht_oper_chwidth,
8763 &opclass, &chan) ==
8764 NUM_HOSTAPD_MODES) {
8765 wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
8766 ret = -1;
8767 goto out;
8768 }
73afc20d
AO		 8769
8770 if (conf->vht_oper_centr_freq_seg0_idx)
8771 freq1 = ieee80211_chan_to_freq(
7d82170a 8772 NULL, opclass,
73afc20d
AO		 8773 conf->vht_oper_centr_freq_seg0_idx);
8774
8775 if (conf->vht_oper_centr_freq_seg1_idx)
8776 freq2 = ieee80211_chan_to_freq(
7d82170a 8777 NULL, opclass,
73afc20d
AO		 8778 conf->vht_oper_centr_freq_seg1_idx);
8779
8780 if (freq1 < 0 || freq2 < 0) {
8781 wpa_dbg(wpa_s, MSG_DEBUG,
8782 "P2P CSA: Selected invalid VHT center freqs");
8783 ret = -1;
8784 goto out;
8785 }
8786
8787 csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
8788 csa_settings.freq_params.center_freq1 = freq1;
8789 csa_settings.freq_params.center_freq2 = freq2;
8790
8791 switch (conf->vht_oper_chwidth) {
8792 case VHT_CHANWIDTH_80MHZ:
8793 case VHT_CHANWIDTH_80P80MHZ:
8794 csa_settings.freq_params.bandwidth = 80;
8795 break;
8796 case VHT_CHANWIDTH_160MHZ:
8797 csa_settings.freq_params.bandwidth = 160;
8798 break;
8799 }
8800 }
8801
8802 ret = ap_switch_channel(wpa_s, &csa_settings);
8803out:
8804 current_ssid->frequency = old_freq;
8805 hostapd_config_free(conf);
8806 return ret;
1a471ff0
IP		 8807}
8808
8809
8810static void wpas_p2p_move_go_no_csa(struct wpa_supplicant *wpa_s)
8811{
8812 struct p2p_go_neg_results params;
8813 struct wpa_ssid *current_ssid = wpa_s->current_ssid;
8814
8815 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
8816
8817 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz",
8818 current_ssid->frequency);
8819
8820 /* Stop the AP functionality */
8821 /* TODO: Should do this in a way that does not indicated to possible
8822 * P2P Clients in the group that the group is terminated. */
8823 wpa_supplicant_ap_deinit(wpa_s);
8824
8825 /* Reselect the GO frequency */
8826 if (wpas_p2p_init_go_params(wpa_s, &params, 0, 0, 0, NULL)) {
8827 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Failed to reselect freq");
8828 wpas_p2p_group_delete(wpa_s,
8829 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8830 return;
8831 }
8832 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New freq selected for the GO (%u MHz)",
8833 params.freq);
8834
8835 if (params.freq &&
8836 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
8837 wpa_printf(MSG_DEBUG,
8838 "P2P: Selected freq (%u MHz) is not valid for P2P",
8839 params.freq);
8840 wpas_p2p_group_delete(wpa_s,
8841 P2P_GROUP_REMOVAL_GO_LEAVE_CHANNEL);
8842 return;
8843 }
8844
8845 /* Update the frequency */
8846 current_ssid->frequency = params.freq;
8847 wpa_s->connect_without_scan = current_ssid;
8848 wpa_s->reassociate = 1;
8849 wpa_s->disconnected = 0;
8850 wpa_supplicant_req_scan(wpa_s, 0, 0);
8851}
8852
8853
8854static void wpas_p2p_move_go(void *eloop_ctx, void *timeout_ctx)
8855{
8856 struct wpa_supplicant *wpa_s = eloop_ctx;
8857
8858 if (!wpa_s->ap_iface || !wpa_s->current_ssid)
8859 return;
8860
5e1f4805
IP		 8861 wpas_p2p_go_update_common_freqs(wpa_s);
8862
3bafb0d8
AO		 8863 /* Do not move GO in the middle of a CSA */
8864 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
8865 wpa_printf(MSG_DEBUG,
8866 "P2P: CSA is in progress - not moving GO");
8867 return;
8868 }
8869
1a471ff0
IP		 8870 /*
8871 * First, try a channel switch flow. If it is not supported or fails,
8872 * take down the GO and bring it up again.
8873 */
8874 if (wpas_p2p_move_go_csa(wpa_s) < 0)
8875 wpas_p2p_move_go_no_csa(wpa_s);
8876}
8877
8878
dae4c82c
IP		 8879static void wpas_p2p_reconsider_moving_go(void *eloop_ctx, void *timeout_ctx)
8880{
8881 struct wpa_supplicant *wpa_s = eloop_ctx;
8882 struct wpa_used_freq_data *freqs = NULL;
8883 unsigned int num = wpa_s->num_multichan_concurrent;
8884
8885 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
8886 if (!freqs)
8887 return;
8888
8889 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
8890
8891 /* Previous attempt to move a GO was not possible -- try again. */
3a8f008a
IP		 8892 wpas_p2p_consider_moving_gos(wpa_s, freqs, num,
8893 WPAS_P2P_CHANNEL_UPDATE_ANY);
dae4c82c
IP		 8894
8895 os_free(freqs);
8896}
8897
8898
1a471ff0
IP		 8899/*
8900 * Consider moving a GO from its currently used frequency:
8901 * 1. It is possible that due to regulatory consideration the frequency
8902 * can no longer be used and there is a need to evacuate the GO.
8903 * 2. It is possible that due to MCC considerations, it would be preferable
8904 * to move the GO to a channel that is currently used by some other
8905 * station interface.
8906 *
8907 * In case a frequency that became invalid is once again valid, cancel a
8908 * previously initiated GO frequency change.
8909 */
8910static void wpas_p2p_consider_moving_one_go(struct wpa_supplicant *wpa_s,
8911 struct wpa_used_freq_data *freqs,
8912 unsigned int num)
8913{
8914 unsigned int i, invalid_freq = 0, policy_move = 0, flags = 0;
8915 unsigned int timeout;
8916 int freq;
8917
5e1f4805
IP		 8918 wpas_p2p_go_update_common_freqs(wpa_s);
8919
1a471ff0
IP		 8920 freq = wpa_s->current_ssid->frequency;
8921 for (i = 0, invalid_freq = 0; i < num; i++) {
8922 if (freqs[i].freq == freq) {
8923 flags = freqs[i].flags;
8924
8925 /* The channel is invalid, must change it */
8926 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
8927 wpa_dbg(wpa_s, MSG_DEBUG,
8928 "P2P: Freq=%d MHz no longer valid for GO",
8929 freq);
8930 invalid_freq = 1;
8931 }
8932 } else if (freqs[i].flags == 0) {
8933 /* Freq is not used by any other station interface */
8934 continue;
8935 } else if (!p2p_supported_freq(wpa_s->global->p2p,
8936 freqs[i].freq)) {
8937 /* Freq is not valid for P2P use cases */
8938 continue;
8939 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8940 P2P_GO_FREQ_MOVE_SCM) {
8941 policy_move = 1;
8942 } else if (wpa_s->conf->p2p_go_freq_change_policy ==
8943 P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
8944 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8945 policy_move = 1;
98b05081
AO		 8946 } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
8947 P2P_GO_FREQ_MOVE_SCM_ECSA) &&
8948 wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
8949 if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
8950 policy_move = 1;
8951 } else if ((wpa_s->drv_flags &
8952 WPA_DRIVER_FLAGS_AP_CSA) &&
8953 wpas_p2p_go_clients_support_ecsa(wpa_s)) {
8954 u8 chan;
8955
8956 /*
8957 * We do not support CSA between bands, so move
8958 * GO only within the same band.
8959 */
8960 if (wpa_s->ap_iface->current_mode->mode ==
8961 ieee80211_freq_to_chan(freqs[i].freq,
8962 &chan))
8963 policy_move = 1;
8964 }
1a471ff0
IP		 8965 }
8966 }
8967
8968 wpa_dbg(wpa_s, MSG_DEBUG,
8969 "P2P: GO move: invalid_freq=%u, policy_move=%u, flags=0x%X",
8970 invalid_freq, policy_move, flags);
8971
8972 /*
8973 * The channel is valid, or we are going to have a policy move, so
8974 * cancel timeout.
8975 */
8976 if (!invalid_freq || policy_move) {
8977 wpa_dbg(wpa_s, MSG_DEBUG,
8978 "P2P: Cancel a GO move from freq=%d MHz", freq);
8979 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
dae4c82c
IP		 8980
8981 if (wpas_p2p_in_progress(wpa_s)) {
8982 wpa_dbg(wpa_s, MSG_DEBUG,
8983 "P2P: GO move: policy CS is not allowed - setting timeout to re-consider GO move");
8984 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go,
8985 wpa_s, NULL);
8986 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
8987 wpas_p2p_reconsider_moving_go,
8988 wpa_s, NULL);
8989 return;
8990 }
1a471ff0
IP		 8991 }
8992
8993 if (!invalid_freq && (!policy_move || flags != 0)) {
8994 wpa_dbg(wpa_s, MSG_DEBUG,
8995 "P2P: Not initiating a GO frequency change");
8996 return;
8997 }
8998
3bafb0d8
AO		 8999 /*
9000 * Do not consider moving GO if it is in the middle of a CSA. When the
9001 * CSA is finished this flow should be retriggered.
9002 */
9003 if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
9004 wpa_dbg(wpa_s, MSG_DEBUG,
9005 "P2P: Not initiating a GO frequency change - CSA is in progress");
9006 return;
9007 }
9008
1a471ff0
IP		 9009 if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
9010 timeout = P2P_GO_FREQ_CHANGE_TIME;
9011 else
9012 timeout = 0;
9013
9014 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Move GO from freq=%d MHz in %d secs",
9015 freq, timeout);
9016 eloop_cancel_timeout(wpas_p2p_move_go, wpa_s, NULL);
9017 eloop_register_timeout(timeout, 0, wpas_p2p_move_go, wpa_s, NULL);
9018}
9019
9020
9021static void wpas_p2p_consider_moving_gos(struct wpa_supplicant *wpa_s,
9022 struct wpa_used_freq_data *freqs,
3a8f008a
IP		 9023 unsigned int num,
9024 enum wpas_p2p_channel_update_trig trig)
1a471ff0
IP		 9025{
9026 struct wpa_supplicant *ifs;
9027
dae4c82c
IP		 9028 eloop_cancel_timeout(wpas_p2p_reconsider_moving_go, ELOOP_ALL_CTX,
9029 NULL);
9030
1a471ff0
IP		 9031 /*
9032 * Travers all the radio interfaces, and for each GO interface, check
9033 * if there is a need to move the GO from the frequency it is using,
9034 * or in case the frequency is valid again, cancel the evacuation flow.
9035 */
9036 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
9037 radio_list) {
9038 if (ifs->current_ssid == NULL ||
9039 ifs->current_ssid->mode != WPAS_MODE_P2P_GO)
9040 continue;
9041
3a8f008a
IP		 9042 /*
9043 * The GO was just started or completed channel switch, no need
9044 * to move it.
9045 */
9046 if (wpa_s == ifs &&
9047 (trig == WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE ||
9048 trig == WPAS_P2P_CHANNEL_UPDATE_CS)) {
9049 wpa_dbg(wpa_s, MSG_DEBUG,
9050 "P2P: GO move - schedule re-consideration");
9051 eloop_register_timeout(P2P_RECONSIDER_GO_MOVE_DELAY, 0,
9052 wpas_p2p_reconsider_moving_go,
9053 wpa_s, NULL);
9054 continue;
9055 }
9056
1a471ff0
IP		 9057 wpas_p2p_consider_moving_one_go(ifs, freqs, num);
9058 }
9059}
9060
9061
e3bd6e9d
IP		 9062void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
9063{
e3bd6e9d
IP		 9064 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
9065 return;
9066
3a8f008a
IP		 9067 wpas_p2p_update_channel_list(wpa_s,
9068 WPAS_P2P_CHANNEL_UPDATE_STATE_CHANGE);
e3bd6e9d 9069}
bd10d938
JM		 9070
9071
9072void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
9073{
bd10d938
JM		 9074 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
9075 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
9076 "the management interface is being removed");
9077 wpas_p2p_deinit_global(wpa_s->global);
9078 }
9079}
9080
9081
9082void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
9083{
9084 if (wpa_s->ap_iface->bss)
9085 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
9086 wpas_p2p_group_deinit(wpa_s);
9087}
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