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52 * it is currently using, but is no longer valid for P2P use cases.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57 * Defines CSA parameters which are used when GO evacuates the no longer valid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