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P2P: Handle improper WPS termination on GO during group formation
[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"
20a0b03d
JM		 25#include "eapol_supp/eapol_supp_sm.h"
26#include "rsn_supp/wpa.h"
b22128ef
JM		 27#include "wpa_supplicant_i.h"
28#include "driver_i.h"
29#include "ap.h"
30#include "config_ssid.h"
31#include "config.h"
b22128ef
JM		 32#include "notify.h"
33#include "scan.h"
34#include "bss.h"
24f6497c 35#include "offchannel.h"
b22128ef
JM		 36#include "wps_supplicant.h"
37#include "p2p_supplicant.h"
b125c48f 38#include "wifi_display.h"
b22128ef
JM		 39
40
9b1ab931
JM		 41/*
42 * How many times to try to scan to find the GO before giving up on join
43 * request.
44 */
45#define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
46
84286a22
SDU		 47#define P2P_AUTO_PD_SCAN_ATTEMPTS 5
48
c8106615
JM		 49#ifndef P2P_MAX_CLIENT_IDLE
50/*
51 * How many seconds to try to reconnect to the GO when connection in P2P client
52 * role has been lost.
53 */
54#define P2P_MAX_CLIENT_IDLE 10
55#endif /* P2P_MAX_CLIENT_IDLE */
56
361cdf34
JM		 57#ifndef P2P_MAX_INITIAL_CONN_WAIT
58/*
59 * How many seconds to wait for initial 4-way handshake to get completed after
91364b7f
SDU		 60 * WPS provisioning step or after the re-invocation of a persistent group on a
61 * P2P Client.
361cdf34
JM		 62 */
63#define P2P_MAX_INITIAL_CONN_WAIT 10
64#endif /* P2P_MAX_INITIAL_CONN_WAIT */
65
c1c0b35f
JM		 66#ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
67/*
68 * How many seconds to wait for initial 4-way handshake to get completed after
69 * WPS provisioning step on the GO. This controls the extra time the P2P
70 * operation is considered to be in progress (e.g., to delay other scans) after
71 * WPS provisioning has been completed on the GO during group formation.
72 */
73#define P2P_MAX_INITIAL_CONN_WAIT_GO 10
74#endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
75
bbc6c729
JM		 76#ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
77/*
78 * How many seconds to wait for initial 4-way handshake to get completed after
79 * re-invocation of a persistent group on the GO when the client is expected
80 * to connect automatically (no user interaction).
81 */
82#define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
83#endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
84
2e5ba4b6
AS		 85#define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
86
8dba4aef
JM		 87enum p2p_group_removal_reason {
88 P2P_GROUP_REMOVAL_UNKNOWN,
89 P2P_GROUP_REMOVAL_SILENT,
90 P2P_GROUP_REMOVAL_FORMATION_FAILED,
91 P2P_GROUP_REMOVAL_REQUESTED,
92 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
93 P2P_GROUP_REMOVAL_UNAVAILABLE,
5bf9a6c8 94 P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
8567866d
JJ		 95 P2P_GROUP_REMOVAL_PSK_FAILURE,
96 P2P_GROUP_REMOVAL_FREQ_CONFLICT
8dba4aef
JM		 97};
98
9b1ab931 99
b22128ef
JM		 100static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
101static struct wpa_supplicant *
102wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
103 int go);
23318bea
JM		 104static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
105 const u8 *ssid, size_t ssid_len);
c48414af
JM		 106static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
107 const u8 *ssid, size_t ssid_len);
ef922c4a 108static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
108def93 109static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0 110 const u8 *dev_addr, enum p2p_wps_method wps_method,
23318bea
JM		 111 int auto_join, int freq,
112 const u8 *ssid, size_t ssid_len);
b22128ef 113static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
72044390 114static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
3071e181
JM		 115static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
116static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
77dfafd0
JM		 117static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
118 void *timeout_ctx);
8567866d 119static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
aa9bb764
JM		 120static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
121 int group_added);
8713a2e6 122static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
b3253ebb 123static void wpas_stop_listen(void *ctx);
fb2ac53d 124static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx);
bd10d938 125static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s);
b22128ef
JM		 126
127
0d08efa4
IP		 128/*
129 * Get the number of concurrent channels that the HW can operate, but that are
130 * currently not in use by any of the wpa_supplicant interfaces.
131 */
132static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
133{
134 int *freqs;
217cf499 135 int num, unused;
0d08efa4
IP		 136
137 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
138 if (!freqs)
139 return -1;
140
141 num = get_shared_radio_freqs(wpa_s, freqs,
142 wpa_s->num_multichan_concurrent);
143 os_free(freqs);
144
217cf499
JM		 145 unused = wpa_s->num_multichan_concurrent - num;
146 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
147 return unused;
0d08efa4
IP		 148}
149
150
151/*
152 * Get the frequencies that are currently in use by one or more of the virtual
153 * interfaces, and that are also valid for P2P operation.
154 */
a0c90bb0
IP		 155static unsigned int
156wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
157 struct wpa_used_freq_data *p2p_freqs,
158 unsigned int len)
0d08efa4 159{
a0c90bb0 160 struct wpa_used_freq_data *freqs;
0d08efa4
IP		 161 unsigned int num, i, j;
162
a0c90bb0
IP		 163 freqs = os_calloc(wpa_s->num_multichan_concurrent,
164 sizeof(struct wpa_used_freq_data));
0d08efa4 165 if (!freqs)
a0c90bb0 166 return 0;
0d08efa4 167
a0c90bb0
IP		 168 num = get_shared_radio_freqs_data(wpa_s, freqs,
169 wpa_s->num_multichan_concurrent);
0d08efa4 170
a0c90bb0 171 os_memset(p2p_freqs, 0, sizeof(struct wpa_used_freq_data) * len);
0d08efa4
IP		 172
173 for (i = 0, j = 0; i < num && j < len; i++) {
a0c90bb0 174 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
0d08efa4
IP		 175 p2p_freqs[j++] = freqs[i];
176 }
177
178 os_free(freqs);
179
a0c90bb0 180 dump_freq_data(wpa_s, "valid for P2P", p2p_freqs, j);
217cf499 181
0d08efa4
IP		 182 return j;
183}
184
185
6cb27aa8
JM		 186static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
187 int freq)
188{
189 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
190 return;
5624ccfe
JM		 191 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
192 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
193 wpas_p2p_num_unused_channels(wpa_s) > 0) {
21e491f2
JM		 194 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
195 freq);
b277a2be 196 freq = 0;
21e491f2 197 }
6cb27aa8
JM		 198 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
199}
200
201
b22128ef
JM		 202static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
203 struct wpa_scan_results *scan_res)
204{
205 size_t i;
206
1b5d4714
JM		 207 if (wpa_s->p2p_scan_work) {
208 struct wpa_radio_work *work = wpa_s->p2p_scan_work;
209 wpa_s->p2p_scan_work = NULL;
210 radio_work_done(work);
211 }
212
9526fd29 213 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 214 return;
215
216 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
217 (int) scan_res->num);
218
219 for (i = 0; i < scan_res->num; i++) {
220 struct wpa_scan_res *bss = scan_res->res[i];
acb69cec 221 struct os_reltime time_tmp_age, entry_ts;
aaeb9c98
JM		 222 const u8 *ies;
223 size_t ies_len;
224
c5f10e80
JM		 225 time_tmp_age.sec = bss->age / 1000;
226 time_tmp_age.usec = (bss->age % 1000) * 1000;
acb69cec 227 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
aaeb9c98
JM		 228
229 ies = (const u8 *) (bss + 1);
230 ies_len = bss->ie_len;
231 if (bss->beacon_ie_len > 0 &&
232 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
233 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
234 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
235 MACSTR, MAC2STR(bss->bssid));
236 ies = ies + ies_len;
237 ies_len = bss->beacon_ie_len;
238 }
239
240
b22128ef 241 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
c5f10e80 242 bss->freq, &entry_ts, bss->level,
aaeb9c98 243 ies, ies_len) > 0)
9bcf9541 244 break;
b22128ef
JM		 245 }
246
247 p2p_scan_res_handled(wpa_s->global->p2p);
248}
249
250
1b5d4714
JM		 251static void wpas_p2p_trigger_scan_cb(struct wpa_radio_work *work, int deinit)
252{
253 struct wpa_supplicant *wpa_s = work->wpa_s;
254 struct wpa_driver_scan_params *params = work->ctx;
255 int ret;
256
257 if (deinit) {
b3253ebb
AO		 258 if (!work->started) {
259 wpa_scan_free_params(params);
260 return;
261 }
262
263 wpa_s->p2p_scan_work = NULL;
1b5d4714
JM		 264 return;
265 }
266
267 ret = wpa_drv_scan(wpa_s, params);
268 wpa_scan_free_params(params);
269 work->ctx = NULL;
270 if (ret) {
271 radio_work_done(work);
272 return;
273 }
274
275 os_get_reltime(&wpa_s->scan_trigger_time);
276 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
277 wpa_s->own_scan_requested = 1;
278 wpa_s->p2p_scan_work = work;
279}
280
281
046ef4aa
JMB		 282static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
283 unsigned int num_req_dev_types,
360182ed 284 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
b22128ef
JM		 285{
286 struct wpa_supplicant *wpa_s = ctx;
1b5d4714 287 struct wpa_driver_scan_params *params = NULL;
b22128ef 288 struct wpabuf *wps_ie, *ies;
1595eb93
AM		 289 unsigned int num_channels = 0;
290 int social_channels_freq[] = { 2412, 2437, 2462, 60480 };
206e1f42 291 size_t ielen;
1595eb93 292 u8 *n, i;
b22128ef 293
9526fd29
JM		 294 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
295 return -1;
296
1b5d4714
JM		 297 if (wpa_s->p2p_scan_work) {
298 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
299 return -1;
99fcd404
JM		 300 }
301
1b5d4714
JM		 302 params = os_zalloc(sizeof(*params));
303 if (params == NULL)
304 return -1;
b22128ef
JM		 305
306 /* P2P Wildcard SSID */
1b5d4714
JM		 307 params->num_ssids = 1;
308 n = os_malloc(P2P_WILDCARD_SSID_LEN);
309 if (n == NULL)
310 goto fail;
311 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
312 params->ssids[0].ssid = n;
313 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
b22128ef
JM		 314
315 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 316 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
317 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
046ef4aa 318 num_req_dev_types, req_dev_types);
b22128ef 319 if (wps_ie == NULL)
1b5d4714 320 goto fail;
b22128ef 321
206e1f42
JM		 322 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
323 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
b22128ef
JM		 324 if (ies == NULL) {
325 wpabuf_free(wps_ie);
1b5d4714 326 goto fail;
b22128ef
JM		 327 }
328 wpabuf_put_buf(ies, wps_ie);
329 wpabuf_free(wps_ie);
330
6d92fa6e 331 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
b22128ef 332
1b5d4714
JM		 333 params->p2p_probe = 1;
334 n = os_malloc(wpabuf_len(ies));
335 if (n == NULL) {
336 wpabuf_free(ies);
337 goto fail;
338 }
339 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
340 params->extra_ies = n;
341 params->extra_ies_len = wpabuf_len(ies);
342 wpabuf_free(ies);
b22128ef
JM		 343
344 switch (type) {
345 case P2P_SCAN_SOCIAL:
1595eb93
AM		 346 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 1,
347 sizeof(int));
1b5d4714
JM		 348 if (params->freqs == NULL)
349 goto fail;
1595eb93
AM		 350 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
351 if (p2p_supported_freq(wpa_s->global->p2p,
352 social_channels_freq[i]))
353 params->freqs[num_channels++] =
354 social_channels_freq[i];
355 }
356 params->freqs[num_channels++] = 0;
b22128ef
JM		 357 break;
358 case P2P_SCAN_FULL:
359 break;
b22128ef 360 case P2P_SCAN_SOCIAL_PLUS_ONE:
1595eb93
AM		 361 params->freqs = os_calloc(ARRAY_SIZE(social_channels_freq) + 2,
362 sizeof(int));
1b5d4714
JM		 363 if (params->freqs == NULL)
364 goto fail;
1595eb93
AM		 365 for (i = 0; i < ARRAY_SIZE(social_channels_freq); i++) {
366 if (p2p_supported_freq(wpa_s->global->p2p,
367 social_channels_freq[i]))
368 params->freqs[num_channels++] =
369 social_channels_freq[i];
370 }
371 if (p2p_supported_freq(wpa_s->global->p2p, freq))
372 params->freqs[num_channels++] = freq;
373 params->freqs[num_channels++] = 0;
b22128ef
JM		 374 break;
375 }
376
b3253ebb 377 radio_remove_works(wpa_s, "p2p-scan", 0);
1b5d4714
JM		 378 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
379 params) < 0)
380 goto fail;
381 return 0;
0c96fd6d 382
1b5d4714
JM		 383fail:
384 wpa_scan_free_params(params);
385 return -1;
b22128ef
JM		 386}
387
388
b22128ef
JM		 389static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
390{
391 switch (p2p_group_interface) {
392 case P2P_GROUP_INTERFACE_PENDING:
393 return WPA_IF_P2P_GROUP;
394 case P2P_GROUP_INTERFACE_GO:
395 return WPA_IF_P2P_GO;
396 case P2P_GROUP_INTERFACE_CLIENT:
397 return WPA_IF_P2P_CLIENT;
398 }
399
400 return WPA_IF_P2P_GROUP;
401}
402
403
6c0da49f
JM		 404static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
405 const u8 *ssid,
406 size_t ssid_len, int *go)
407{
408 struct wpa_ssid *s;
409
410 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
411 for (s = wpa_s->conf->ssid; s; s = s->next) {
412 if (s->disabled != 0 || !s->p2p_group ||
413 s->ssid_len != ssid_len ||
414 os_memcmp(ssid, s->ssid, ssid_len) != 0)
415 continue;
416 if (s->mode == WPAS_MODE_P2P_GO &&
417 s != wpa_s->current_ssid)
418 continue;
419 if (go)
420 *go = s->mode == WPAS_MODE_P2P_GO;
421 return wpa_s;
422 }
423 }
424
425 return NULL;
426}
427
428
8dba4aef
JM		 429static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
430 enum p2p_group_removal_reason removal_reason)
b22128ef
JM		 431{
432 struct wpa_ssid *ssid;
433 char *gtype;
3071e181
JM		 434 const char *reason;
435
b22128ef
JM		 436 ssid = wpa_s->current_ssid;
437 if (ssid == NULL) {
438 /*
439 * The current SSID was not known, but there may still be a
0c802384
JM		 440 * pending P2P group interface waiting for provisioning or a
441 * P2P group that is trying to reconnect.
b22128ef
JM		 442 */
443 ssid = wpa_s->conf->ssid;
444 while (ssid) {
6d22a377 445 if (ssid->p2p_group && ssid->disabled != 2)
b22128ef
JM		 446 break;
447 ssid = ssid->next;
448 }
6f1ca696
JM		 449 if (ssid == NULL &&
450 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
451 {
30ee7692
MN		 452 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
453 "not found");
454 return -1;
455 }
b22128ef
JM		 456 }
457 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
458 gtype = "GO";
459 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
460 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
461 wpa_s->reassociate = 0;
462 wpa_s->disconnected = 1;
b22128ef
JM		 463 gtype = "client";
464 } else
465 gtype = "GO";
c45dabb8
EA		 466
467 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
468 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
469
debb2dac 470 if (os_strcmp(gtype, "client") == 0) {
c45dabb8 471 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
debb2dac
JM		 472 if (eloop_is_timeout_registered(wpas_p2p_psk_failure_removal,
473 wpa_s, NULL)) {
474 wpa_printf(MSG_DEBUG,
475 "P2P: PSK failure removal was scheduled, so use PSK failure as reason for group removal");
476 removal_reason = P2P_GROUP_REMOVAL_PSK_FAILURE;
477 eloop_cancel_timeout(wpas_p2p_psk_failure_removal,
478 wpa_s, NULL);
479 }
480 }
c45dabb8 481
72044390
JM		 482 if (wpa_s->cross_connect_in_use) {
483 wpa_s->cross_connect_in_use = 0;
92c4465b
JM		 484 wpa_msg_global(wpa_s->parent, MSG_INFO,
485 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
486 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390 487 }
8dba4aef 488 switch (removal_reason) {
3071e181
JM		 489 case P2P_GROUP_REMOVAL_REQUESTED:
490 reason = " reason=REQUESTED";
491 break;
8dba4aef
JM		 492 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
493 reason = " reason=FORMATION_FAILED";
494 break;
3071e181
JM		 495 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
496 reason = " reason=IDLE";
497 break;
c973f386
JM		 498 case P2P_GROUP_REMOVAL_UNAVAILABLE:
499 reason = " reason=UNAVAILABLE";
500 break;
3fc14102
JM		 501 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
502 reason = " reason=GO_ENDING_SESSION";
503 break;
5bf9a6c8
JM		 504 case P2P_GROUP_REMOVAL_PSK_FAILURE:
505 reason = " reason=PSK_FAILURE";
506 break;
8567866d
JJ		 507 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
508 reason = " reason=FREQ_CONFLICT";
509 break;
3071e181
JM		 510 default:
511 reason = "";
512 break;
513 }
8dba4aef 514 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
92c4465b
JM		 515 wpa_msg_global(wpa_s->parent, MSG_INFO,
516 P2P_EVENT_GROUP_REMOVED "%s %s%s",
517 wpa_s->ifname, gtype, reason);
aa9bb764 518 }
408af93e 519
8567866d
JJ		 520 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
521 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
dddc7045
JM		 522 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
523 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
77dfafd0 524 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
c9c77083 525 wpa_s->parent, NULL) > 0) {
77dfafd0
JM		 526 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
527 "timeout");
c9c77083
VN		 528 wpa_s->p2p_in_provisioning = 0;
529 }
a7a30b90 530
41d5ce9e
RR		 531 wpa_s->p2p_in_invitation = 0;
532
adeb4f59
JM		 533 /*
534 * Make sure wait for the first client does not remain active after the
535 * group has been removed.
536 */
537 wpa_s->global->p2p_go_wait_client.sec = 0;
538
b22128ef
JM		 539 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
540 struct wpa_global *global;
541 char *ifname;
542 enum wpa_driver_if_type type;
543 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
544 wpa_s->ifname);
545 global = wpa_s->global;
546 ifname = os_strdup(wpa_s->ifname);
547 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
df509539 548 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
b22128ef
JM		 549 wpa_s = global->ifaces;
550 if (wpa_s && ifname)
551 wpa_drv_if_remove(wpa_s, type, ifname);
552 os_free(ifname);
0aadd568 553 return 1;
b22128ef
JM		 554 }
555
acdd0fc8
DG		 556 if (!wpa_s->p2p_go_group_formation_completed) {
557 wpa_s->global->p2p_group_formation = NULL;
558 wpa_s->p2p_in_provisioning = 0;
559 }
560
c092d83e
JM		 561 wpa_s->show_group_started = 0;
562 os_free(wpa_s->go_params);
563 wpa_s->go_params = NULL;
564
c64e3a08
JM		 565 wpa_s->waiting_presence_resp = 0;
566
b22128ef
JM		 567 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
568 if (ssid && (ssid->p2p_group ||
569 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
570 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
571 int id = ssid->id;
20a0b03d
JM		 572 if (ssid == wpa_s->current_ssid) {
573 wpa_sm_set_config(wpa_s->wpa, NULL);
574 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
b22128ef 575 wpa_s->current_ssid = NULL;
20a0b03d 576 }
c2762e41
JS		 577 /*
578 * Networks objects created during any P2P activities are not
579 * exposed out as they might/will confuse certain non-P2P aware
580 * applications since these network objects won't behave like
581 * regular ones.
582 *
583 * Likewise, we don't send out network removed signals for such
584 * network objects.
585 */
b22128ef
JM		 586 wpa_config_remove_network(wpa_s->conf, id);
587 wpa_supplicant_clear_status(wpa_s);
433cd2ce 588 wpa_supplicant_cancel_sched_scan(wpa_s);
b22128ef
JM		 589 } else {
590 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
591 "found");
592 }
3c29244e
EP		 593 if (wpa_s->ap_iface)
594 wpa_supplicant_ap_deinit(wpa_s);
595 else
596 wpa_drv_deinit_p2p_cli(wpa_s);
30ee7692
MN		 597
598 return 0;
b22128ef
JM		 599}
600
601
602static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
603 u8 *go_dev_addr,
604 const u8 *ssid, size_t ssid_len)
605{
606 struct wpa_bss *bss;
607 const u8 *bssid;
608 struct wpabuf *p2p;
609 u8 group_capab;
610 const u8 *addr;
611
612 if (wpa_s->go_params)
613 bssid = wpa_s->go_params->peer_interface_addr;
614 else
615 bssid = wpa_s->bssid;
616
617 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
23318bea
JM		 618 if (bss == NULL && wpa_s->go_params &&
619 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
620 bss = wpa_bss_get_p2p_dev_addr(
621 wpa_s, wpa_s->go_params->peer_device_addr);
b22128ef
JM		 622 if (bss == NULL) {
623 u8 iface_addr[ETH_ALEN];
624 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
625 iface_addr) == 0)
626 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
627 }
628 if (bss == NULL) {
629 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
630 "group is persistent - BSS " MACSTR " not found",
631 MAC2STR(bssid));
632 return 0;
633 }
634
635 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5df7414b
JM		 636 if (p2p == NULL)
637 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
638 P2P_IE_VENDOR_TYPE);
b22128ef
JM		 639 if (p2p == NULL) {
640 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
641 "group is persistent - BSS " MACSTR
642 " did not include P2P IE", MAC2STR(bssid));
643 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
644 (u8 *) (bss + 1), bss->ie_len);
645 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
646 ((u8 *) bss + 1) + bss->ie_len,
647 bss->beacon_ie_len);
648 return 0;
649 }
650
651 group_capab = p2p_get_group_capab(p2p);
652 addr = p2p_get_go_dev_addr(p2p);
653 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
654 "group_capab=0x%x", group_capab);
655 if (addr) {
656 os_memcpy(go_dev_addr, addr, ETH_ALEN);
657 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
658 MAC2STR(addr));
659 } else
660 os_memset(go_dev_addr, 0, ETH_ALEN);
661 wpabuf_free(p2p);
662
663 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
664 "go_dev_addr=" MACSTR,
665 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
666
667 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
668}
669
670
4b6baa2f
JMB		 671static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
672 struct wpa_ssid *ssid,
673 const u8 *go_dev_addr)
b22128ef
JM		 674{
675 struct wpa_ssid *s;
676 int changed = 0;
677
678 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
679 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
680 for (s = wpa_s->conf->ssid; s; s = s->next) {
681 if (s->disabled == 2 &&
682 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
683 s->ssid_len == ssid->ssid_len &&
684 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
685 break;
686 }
687
688 if (s) {
689 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
690 "entry");
691 if (ssid->passphrase && !s->passphrase)
692 changed = 1;
693 else if (ssid->passphrase && s->passphrase &&
694 os_strcmp(ssid->passphrase, s->passphrase) != 0)
695 changed = 1;
696 } else {
697 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
698 "entry");
699 changed = 1;
700 s = wpa_config_add_network(wpa_s->conf);
701 if (s == NULL)
4b6baa2f 702 return -1;
c2762e41
JS		 703
704 /*
705 * Instead of network_added we emit persistent_group_added
706 * notification. Also to keep the defense checks in
707 * persistent_group obj registration method, we set the
708 * relevant flags in s to designate it as a persistent group.
709 */
710 s->p2p_group = 1;
711 s->p2p_persistent_group = 1;
712 wpas_notify_persistent_group_added(wpa_s, s);
b22128ef
JM		 713 wpa_config_set_network_defaults(s);
714 }
715
716 s->p2p_group = 1;
717 s->p2p_persistent_group = 1;
718 s->disabled = 2;
719 s->bssid_set = 1;
720 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
721 s->mode = ssid->mode;
722 s->auth_alg = WPA_AUTH_ALG_OPEN;
723 s->key_mgmt = WPA_KEY_MGMT_PSK;
724 s->proto = WPA_PROTO_RSN;
725 s->pairwise_cipher = WPA_CIPHER_CCMP;
d1c8ac88 726 s->export_keys = 1;
b22128ef
JM		 727 if (ssid->passphrase) {
728 os_free(s->passphrase);
729 s->passphrase = os_strdup(ssid->passphrase);
730 }
731 if (ssid->psk_set) {
732 s->psk_set = 1;
733 os_memcpy(s->psk, ssid->psk, 32);
734 }
735 if (s->passphrase && !s->psk_set)
736 wpa_config_update_psk(s);
737 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
738 os_free(s->ssid);
739 s->ssid = os_malloc(ssid->ssid_len);
740 }
741 if (s->ssid) {
742 s->ssid_len = ssid->ssid_len;
743 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
744 }
01a57fe4
JM		 745 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
746 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
747 wpa_s->global->add_psk = NULL;
748 changed = 1;
749 }
b22128ef 750
b22128ef
JM		 751 if (changed && wpa_s->conf->update_config &&
752 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
753 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
754 }
4b6baa2f
JMB		 755
756 return s->id;
b22128ef
JM		 757}
758
759
fbdcfd57
JM		 760static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
761 const u8 *addr)
762{
763 struct wpa_ssid *ssid, *s;
764 u8 *n;
765 size_t i;
22316795 766 int found = 0;
fbdcfd57
JM		 767
768 ssid = wpa_s->current_ssid;
769 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
770 !ssid->p2p_persistent_group)
771 return;
772
773 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
774 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
775 continue;
776
777 if (s->ssid_len == ssid->ssid_len &&
778 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
779 break;
780 }
781
782 if (s == NULL)
783 return;
784
785 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
786 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
22316795
JM		 787 ETH_ALEN) != 0)
788 continue;
789
790 if (i == s->num_p2p_clients - 1)
791 return; /* already the most recent entry */
792
793 /* move the entry to mark it most recent */
794 os_memmove(s->p2p_client_list + i * ETH_ALEN,
795 s->p2p_client_list + (i + 1) * ETH_ALEN,
796 (s->num_p2p_clients - i - 1) * ETH_ALEN);
797 os_memcpy(s->p2p_client_list +
798 (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
799 found = 1;
800 break;
fbdcfd57
JM		 801 }
802
b4a5dfa9 803 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
22316795
JM		 804 n = os_realloc_array(s->p2p_client_list,
805 s->num_p2p_clients + 1, ETH_ALEN);
806 if (n == NULL)
807 return;
808 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
809 s->p2p_client_list = n;
810 s->num_p2p_clients++;
8931a36c 811 } else if (!found && s->p2p_client_list) {
b4a5dfa9
JM		 812 /* Not enough room for an additional entry - drop the oldest
813 * entry */
814 os_memmove(s->p2p_client_list,
815 s->p2p_client_list + ETH_ALEN,
816 (s->num_p2p_clients - 1) * ETH_ALEN);
817 os_memcpy(s->p2p_client_list +
818 (s->num_p2p_clients - 1) * ETH_ALEN,
819 addr, ETH_ALEN);
22316795 820 }
fbdcfd57 821
fbdcfd57
JM		 822 if (wpa_s->parent->conf->update_config &&
823 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
824 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
fbdcfd57
JM		 825}
826
827
f8723e1e
JM		 828static void wpas_p2p_group_started(struct wpa_supplicant *wpa_s,
829 int go, struct wpa_ssid *ssid, int freq,
830 const u8 *psk, const char *passphrase,
831 const u8 *go_dev_addr, int persistent,
832 const char *extra)
833{
834 const char *ssid_txt;
835 char psk_txt[65];
836
837 if (psk)
838 wpa_snprintf_hex(psk_txt, sizeof(psk_txt), psk, 32);
839 else
840 psk_txt[0] = '\0';
841
842 if (ssid)
843 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
844 else
845 ssid_txt = "";
846
847 if (passphrase && passphrase[0] == '\0')
848 passphrase = NULL;
849
52f4abfd
JM		 850 /*
851 * Include PSK/passphrase only in the control interface message and
852 * leave it out from the debug log entry.
853 */
854 wpa_msg_global_ctrl(wpa_s->parent, MSG_INFO,
855 P2P_EVENT_GROUP_STARTED
856 "%s %s ssid=\"%s\" freq=%d%s%s%s%s%s go_dev_addr="
857 MACSTR "%s%s",
858 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
859 psk ? " psk=" : "", psk_txt,
860 passphrase ? " passphrase=\"" : "",
861 passphrase ? passphrase : "",
862 passphrase ? "\"" : "",
863 MAC2STR(go_dev_addr),
864 persistent ? " [PERSISTENT]" : "", extra);
865 wpa_printf(MSG_INFO, P2P_EVENT_GROUP_STARTED
866 "%s %s ssid=\"%s\" freq=%d go_dev_addr=" MACSTR "%s%s",
867 wpa_s->ifname, go ? "GO" : "client", ssid_txt, freq,
868 MAC2STR(go_dev_addr), persistent ? " [PERSISTENT]" : "",
869 extra);
f8723e1e
JM		 870}
871
872
b22128ef
JM		 873static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
874 int success)
875{
876 struct wpa_ssid *ssid;
b22128ef
JM		 877 int client;
878 int persistent;
879 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 880 int network_id = -1;
b22128ef
JM		 881
882 /*
883 * This callback is likely called for the main interface. Update wpa_s
884 * to use the group interface if a new interface was created for the
885 * group.
886 */
887 if (wpa_s->global->p2p_group_formation)
888 wpa_s = wpa_s->global->p2p_group_formation;
41f85323
JM		 889 if (wpa_s->p2p_go_group_formation_completed) {
890 wpa_s->global->p2p_group_formation = NULL;
891 wpa_s->p2p_in_provisioning = 0;
892 }
f05cee97 893 wpa_s->p2p_in_invitation = 0;
61fc9048 894 wpa_s->group_formation_reported = 1;
b22128ef
JM		 895
896 if (!success) {
92c4465b
JM		 897 wpa_msg_global(wpa_s->parent, MSG_INFO,
898 P2P_EVENT_GROUP_FORMATION_FAILURE);
8dba4aef
JM		 899 wpas_p2p_group_delete(wpa_s,
900 P2P_GROUP_REMOVAL_FORMATION_FAILED);
b22128ef
JM		 901 return;
902 }
903
92c4465b
JM		 904 wpa_msg_global(wpa_s->parent, MSG_INFO,
905 P2P_EVENT_GROUP_FORMATION_SUCCESS);
b22128ef
JM		 906
907 ssid = wpa_s->current_ssid;
908 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
909 ssid->mode = WPAS_MODE_P2P_GO;
910 p2p_group_notif_formation_done(wpa_s->p2p_group);
911 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
912 }
913
914 persistent = 0;
915 if (ssid) {
b22128ef
JM		 916 client = ssid->mode == WPAS_MODE_INFRA;
917 if (ssid->mode == WPAS_MODE_P2P_GO) {
918 persistent = ssid->p2p_persistent_group;
d7e70476 919 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
b22128ef
JM		 920 ETH_ALEN);
921 } else
922 persistent = wpas_p2p_persistent_group(wpa_s,
923 go_dev_addr,
924 ssid->ssid,
925 ssid->ssid_len);
926 } else {
b22128ef
JM		 927 client = wpa_s->p2p_group_interface ==
928 P2P_GROUP_INTERFACE_CLIENT;
62c0d27e 929 os_memset(go_dev_addr, 0, ETH_ALEN);
b22128ef
JM		 930 }
931
932 wpa_s->show_group_started = 0;
933 if (client) {
934 /*
935 * Indicate event only after successfully completed 4-way
936 * handshake, i.e., when the interface is ready for data
937 * packets.
938 */
939 wpa_s->show_group_started = 1;
b22128ef 940 } else {
f8723e1e
JM		 941 wpas_p2p_group_started(wpa_s, 1, ssid,
942 ssid ? ssid->frequency : 0,
943 ssid && ssid->passphrase == NULL &&
944 ssid->psk_set ? ssid->psk : NULL,
945 ssid ? ssid->passphrase : NULL,
946 go_dev_addr, persistent, "");
72044390 947 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 948 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 949 }
950
951 if (persistent)
4b6baa2f
JMB		 952 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
953 ssid, go_dev_addr);
01a57fe4
JM		 954 else {
955 os_free(wpa_s->global->add_psk);
956 wpa_s->global->add_psk = NULL;
957 }
21fe9e75 958 if (network_id < 0 && ssid)
4b6baa2f 959 network_id = ssid->id;
c1c0b35f 960 if (!client) {
4b6baa2f 961 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
151ab808 962 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
c1c0b35f 963 }
b22128ef
JM		 964}
965
966
e05e1308
JM		 967struct send_action_work {
968 unsigned int freq;
969 u8 dst[ETH_ALEN];
970 u8 src[ETH_ALEN];
971 u8 bssid[ETH_ALEN];
972 size_t len;
973 unsigned int wait_time;
974 u8 buf[0];
975};
976
977
978static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
979 void *timeout_ctx)
980{
981 struct wpa_supplicant *wpa_s = eloop_ctx;
982
983 if (!wpa_s->p2p_send_action_work)
984 return;
985
986 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
987 os_free(wpa_s->p2p_send_action_work->ctx);
988 radio_work_done(wpa_s->p2p_send_action_work);
989 wpa_s->p2p_send_action_work = NULL;
990}
991
992
2fa980f0 993static void wpas_p2p_action_tx_clear(struct wpa_supplicant *wpa_s)
534525ff 994{
e05e1308
JM		 995 if (wpa_s->p2p_send_action_work) {
996 struct send_action_work *awork;
997 awork = wpa_s->p2p_send_action_work->ctx;
998 if (awork->wait_time == 0) {
999 os_free(awork);
1000 radio_work_done(wpa_s->p2p_send_action_work);
1001 wpa_s->p2p_send_action_work = NULL;
1002 } else {
1003 /*
1004 * In theory, this should not be needed, but number of
1005 * places in the P2P code is still using non-zero wait
1006 * time for the last Action frame in the sequence and
1007 * some of these do not call send_action_done().
1008 */
1009 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1010 wpa_s, NULL);
1011 eloop_register_timeout(
1012 0, awork->wait_time * 1000,
1013 wpas_p2p_send_action_work_timeout,
1014 wpa_s, NULL);
1015 }
1016 }
2fa980f0
JJ		 1017}
1018
1019
1020static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
1021 unsigned int freq,
1022 const u8 *dst, const u8 *src,
1023 const u8 *bssid,
1024 const u8 *data, size_t data_len,
1025 enum offchannel_send_action_result
1026 result)
1027{
1028 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
1029
1030 wpas_p2p_action_tx_clear(wpa_s);
e05e1308 1031
9526fd29 1032 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef
JM		 1033 return;
1034
24f6497c
JM		 1035 switch (result) {
1036 case OFFCHANNEL_SEND_ACTION_SUCCESS:
1037 res = P2P_SEND_ACTION_SUCCESS;
1038 break;
1039 case OFFCHANNEL_SEND_ACTION_NO_ACK:
1040 res = P2P_SEND_ACTION_NO_ACK;
1041 break;
1042 case OFFCHANNEL_SEND_ACTION_FAILED:
1043 res = P2P_SEND_ACTION_FAILED;
1044 break;
b22128ef
JM		 1045 }
1046
24f6497c 1047 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
b22128ef 1048
f63b8542
JM		 1049 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
1050 wpa_s->pending_pd_before_join &&
24f6497c 1051 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
175171ac
JM		 1052 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
1053 wpa_s->p2p_fallback_to_go_neg) {
b22128ef 1054 wpa_s->pending_pd_before_join = 0;
175171ac
JM		 1055 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
1056 "during p2p_connect-auto");
1057 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1058 return;
b22128ef
JM		 1059 }
1060}
1061
1062
e05e1308
JM		 1063static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1064{
1065 struct wpa_supplicant *wpa_s = work->wpa_s;
1066 struct send_action_work *awork = work->ctx;
1067
1068 if (deinit) {
b3253ebb
AO		 1069 if (work->started) {
1070 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1071 wpa_s, NULL);
1072 wpa_s->p2p_send_action_work = NULL;
1073 offchannel_send_action_done(wpa_s);
1074 }
e05e1308
JM		 1075 os_free(awork);
1076 return;
1077 }
1078
1079 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1080 awork->bssid, awork->buf, awork->len,
1081 awork->wait_time,
1082 wpas_p2p_send_action_tx_status, 1) < 0) {
1083 os_free(awork);
1084 radio_work_done(work);
1085 return;
1086 }
1087 wpa_s->p2p_send_action_work = work;
1088}
1089
1090
1091static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1092 unsigned int freq, const u8 *dst,
1093 const u8 *src, const u8 *bssid, const u8 *buf,
1094 size_t len, unsigned int wait_time)
1095{
1096 struct send_action_work *awork;
1097
1098 if (wpa_s->p2p_send_action_work) {
1099 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1100 return -1;
1101 }
1102
1103 awork = os_zalloc(sizeof(*awork) + len);
1104 if (awork == NULL)
1105 return -1;
1106
1107 awork->freq = freq;
1108 os_memcpy(awork->dst, dst, ETH_ALEN);
1109 os_memcpy(awork->src, src, ETH_ALEN);
1110 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1111 awork->len = len;
1112 awork->wait_time = wait_time;
1113 os_memcpy(awork->buf, buf, len);
1114
1115 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1116 wpas_send_action_cb, awork) < 0) {
1117 os_free(awork);
1118 return -1;
1119 }
1120
1121 return 0;
1122}
1123
1124
b22128ef
JM		 1125static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1126 const u8 *src, const u8 *bssid, const u8 *buf,
1127 size_t len, unsigned int wait_time)
1128{
1129 struct wpa_supplicant *wpa_s = ctx;
e05e1308
JM		 1130 int listen_freq = -1, send_freq = -1;
1131
1132 if (wpa_s->p2p_listen_work)
1133 listen_freq = wpa_s->p2p_listen_work->freq;
1134 if (wpa_s->p2p_send_action_work)
1135 send_freq = wpa_s->p2p_send_action_work->freq;
1136 if (listen_freq != (int) freq && send_freq != (int) freq) {
1137 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1138 listen_freq, send_freq);
1139 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1140 len, wait_time);
1141 }
1142
1143 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
24f6497c
JM		 1144 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1145 wait_time,
b106173a 1146 wpas_p2p_send_action_tx_status, 1);
b22128ef
JM		 1147}
1148
1149
1150static void wpas_send_action_done(void *ctx)
1151{
1152 struct wpa_supplicant *wpa_s = ctx;
e05e1308
JM		 1153
1154 if (wpa_s->p2p_send_action_work) {
1155 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1156 wpa_s, NULL);
1157 os_free(wpa_s->p2p_send_action_work->ctx);
1158 radio_work_done(wpa_s->p2p_send_action_work);
1159 wpa_s->p2p_send_action_work = NULL;
1160 }
1161
24f6497c 1162 offchannel_send_action_done(wpa_s);
b22128ef
JM		 1163}
1164
1165
1166static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1167 struct p2p_go_neg_results *params)
1168{
1169 if (wpa_s->go_params == NULL) {
1170 wpa_s->go_params = os_malloc(sizeof(*params));
1171 if (wpa_s->go_params == NULL)
1172 return -1;
1173 }
1174 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1175 return 0;
1176}
1177
1178
1179static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1180 struct p2p_go_neg_results *res)
1181{
61fc9048 1182 wpa_s->group_formation_reported = 0;
23318bea 1183 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
8e9f53c3 1184 " dev_addr " MACSTR " wps_method %d",
23318bea 1185 MAC2STR(res->peer_interface_addr),
8e9f53c3 1186 MAC2STR(res->peer_device_addr), res->wps_method);
e9a7ae41
JM		 1187 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1188 res->ssid, res->ssid_len);
b22128ef
JM		 1189 wpa_supplicant_ap_deinit(wpa_s);
1190 wpas_copy_go_neg_results(wpa_s, res);
db6ae69e 1191 if (res->wps_method == WPS_PBC) {
3b29972c 1192 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
db6ae69e
JM		 1193#ifdef CONFIG_WPS_NFC
1194 } else if (res->wps_method == WPS_NFC) {
23318bea
JM		 1195 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1196 res->peer_interface_addr,
db6ae69e
JM		 1197 wpa_s->parent->p2p_oob_dev_pw,
1198 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1199 wpa_s->parent->p2p_oob_dev_pw_id ==
1200 DEV_PW_NFC_CONNECTION_HANDOVER ?
1201 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1202 NULL,
91a65018 1203 NULL, 0, 0);
db6ae69e
JM		 1204#endif /* CONFIG_WPS_NFC */
1205 } else {
3c5126a4
JM		 1206 u16 dev_pw_id = DEV_PW_DEFAULT;
1207 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1208 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
b22128ef 1209 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
3c5126a4
JM		 1210 wpa_s->p2p_pin, 1, dev_pw_id);
1211 }
b22128ef
JM		 1212}
1213
1214
01a57fe4
JM		 1215static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1216 struct wpa_ssid *ssid)
1217{
1218 struct wpa_ssid *persistent;
1219 struct psk_list_entry *psk;
1220 struct hostapd_data *hapd;
1221
1222 if (!wpa_s->ap_iface)
1223 return;
1224
1225 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1226 ssid->ssid_len);
1227 if (persistent == NULL)
1228 return;
1229
1230 hapd = wpa_s->ap_iface->bss[0];
1231
1232 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1233 list) {
1234 struct hostapd_wpa_psk *hpsk;
1235
1236 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1237 MACSTR " psk=%d",
1238 MAC2STR(psk->addr), psk->p2p);
1239 hpsk = os_zalloc(sizeof(*hpsk));
1240 if (hpsk == NULL)
1241 break;
1242 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1243 if (psk->p2p)
1244 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1245 else
1246 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1247 hpsk->next = hapd->conf->ssid.wpa_psk;
1248 hapd->conf->ssid.wpa_psk = hpsk;
1249 }
1250}
1251
1252
b22128ef
JM		 1253static void p2p_go_configured(void *ctx, void *data)
1254{
1255 struct wpa_supplicant *wpa_s = ctx;
1256 struct p2p_go_neg_results *params = data;
1257 struct wpa_ssid *ssid;
4b6baa2f 1258 int network_id = -1;
b22128ef
JM		 1259
1260 ssid = wpa_s->current_ssid;
1261 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1262 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
d1b024c9
JM		 1263 if (wpa_s->global->p2p_group_formation == wpa_s)
1264 wpa_s->global->p2p_group_formation = NULL;
f8723e1e
JM		 1265 wpas_p2p_group_started(wpa_s, 1, ssid, ssid->frequency,
1266 params->passphrase[0] == '\0' ?
1267 params->psk : NULL,
1268 params->passphrase,
1269 wpa_s->global->p2p_dev_addr,
1270 params->persistent_group, "");
61fc9048 1271 wpa_s->group_formation_reported = 1;
4b6baa2f 1272
151ab808 1273 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
01a57fe4 1274 if (params->persistent_group) {
4b6baa2f 1275 network_id = wpas_p2p_store_persistent_group(
b22128ef 1276 wpa_s->parent, ssid,
d7e70476 1277 wpa_s->global->p2p_dev_addr);
01a57fe4
JM		 1278 wpas_p2p_add_psk_list(wpa_s, ssid);
1279 }
4b6baa2f
JMB		 1280 if (network_id < 0)
1281 network_id = ssid->id;
1282 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
72044390 1283 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 1284 wpas_p2p_set_group_idle_timeout(wpa_s);
bbc6c729
JM		 1285
1286 if (wpa_s->p2p_first_connection_timeout) {
1287 wpa_dbg(wpa_s, MSG_DEBUG,
1288 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1289 wpa_s->p2p_first_connection_timeout);
1290 wpa_s->p2p_go_group_formation_completed = 0;
1291 wpa_s->global->p2p_group_formation = wpa_s;
1292 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1293 wpa_s->parent, NULL);
1294 eloop_register_timeout(
1295 wpa_s->p2p_first_connection_timeout, 0,
1296 wpas_p2p_group_formation_timeout,
1297 wpa_s->parent, NULL);
1298 }
1299
b22128ef
JM		 1300 return;
1301 }
1302
1303 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1304 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1305 params->peer_interface_addr)) {
1306 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1307 "filtering");
1308 return;
1309 }
db6ae69e 1310 if (params->wps_method == WPS_PBC) {
d601247c 1311 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
c3daaf33 1312 params->peer_device_addr);
db6ae69e
JM		 1313#ifdef CONFIG_WPS_NFC
1314 } else if (params->wps_method == WPS_NFC) {
1315 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1316 DEV_PW_NFC_CONNECTION_HANDOVER &&
1317 !wpa_s->parent->p2p_oob_dev_pw) {
1318 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1319 return;
1320 }
1321 wpas_ap_wps_add_nfc_pw(
1322 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1323 wpa_s->parent->p2p_oob_dev_pw,
1324 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1325 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1326#endif /* CONFIG_WPS_NFC */
1327 } else if (wpa_s->p2p_pin[0])
b22128ef 1328 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
c423708f 1329 wpa_s->p2p_pin, NULL, 0, 0);
b22128ef
JM		 1330 os_free(wpa_s->go_params);
1331 wpa_s->go_params = NULL;
1332}
1333
1334
1335static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1336 struct p2p_go_neg_results *params,
1337 int group_formation)
1338{
1339 struct wpa_ssid *ssid;
1340
ac06fb12
JM		 1341 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1342 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1343 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1344 "results");
b22128ef 1345 return;
ac06fb12 1346 }
b22128ef
JM		 1347
1348 ssid = wpa_config_add_network(wpa_s->conf);
ac06fb12
JM		 1349 if (ssid == NULL) {
1350 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
b22128ef 1351 return;
ac06fb12 1352 }
b22128ef 1353
a9e02d59 1354 wpa_s->show_group_started = 0;
58b40fdb 1355 wpa_s->p2p_go_group_formation_completed = 0;
61fc9048 1356 wpa_s->group_formation_reported = 0;
a9e02d59 1357
b22128ef
JM		 1358 wpa_config_set_network_defaults(ssid);
1359 ssid->temporary = 1;
1360 ssid->p2p_group = 1;
1361 ssid->p2p_persistent_group = params->persistent_group;
1362 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1363 WPAS_MODE_P2P_GO;
1364 ssid->frequency = params->freq;
7aeac985 1365 ssid->ht40 = params->ht40;
20ea1ca4 1366 ssid->vht = params->vht;
b22128ef
JM		 1367 ssid->ssid = os_zalloc(params->ssid_len + 1);
1368 if (ssid->ssid) {
1369 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1370 ssid->ssid_len = params->ssid_len;
1371 }
1372 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1373 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1374 ssid->proto = WPA_PROTO_RSN;
1375 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
bb4d4deb
MH		 1376 if (os_strlen(params->passphrase) > 0) {
1377 ssid->passphrase = os_strdup(params->passphrase);
1378 if (ssid->passphrase == NULL) {
92c4465b
JM		 1379 wpa_msg_global(wpa_s, MSG_ERROR,
1380 "P2P: Failed to copy passphrase for GO");
bb4d4deb
MH		 1381 wpa_config_remove_network(wpa_s->conf, ssid->id);
1382 return;
1383 }
1384 } else
1385 ssid->passphrase = NULL;
30c371e8
MH		 1386 ssid->psk_set = params->psk_set;
1387 if (ssid->psk_set)
1388 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
6350a148 1389 else if (ssid->passphrase)
30c371e8 1390 wpa_config_update_psk(ssid);
462a7439 1391 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
b22128ef
JM		 1392
1393 wpa_s->ap_configured_cb = p2p_go_configured;
1394 wpa_s->ap_configured_cb_ctx = wpa_s;
1395 wpa_s->ap_configured_cb_data = wpa_s->go_params;
3e66f789 1396 wpa_s->scan_req = NORMAL_SCAN_REQ;
7dcdcfd6 1397 wpa_s->connect_without_scan = ssid;
b22128ef
JM		 1398 wpa_s->reassociate = 1;
1399 wpa_s->disconnected = 0;
ac06fb12
JM		 1400 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1401 "start GO)");
b22128ef
JM		 1402 wpa_supplicant_req_scan(wpa_s, 0, 0);
1403}
1404
1405
1406static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1407 const struct wpa_supplicant *src)
1408{
1409 struct wpa_config *d;
1410 const struct wpa_config *s;
1411
1412 d = dst->conf;
1413 s = src->conf;
1414
1415#define C(n) if (s->n) d->n = os_strdup(s->n)
1416 C(device_name);
1417 C(manufacturer);
1418 C(model_name);
1419 C(model_number);
1420 C(serial_number);
b22128ef
JM		 1421 C(config_methods);
1422#undef C
3071e181 1423
2f646b6e
JB		 1424 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1425 os_memcpy(d->sec_device_type, s->sec_device_type,
1426 sizeof(d->sec_device_type));
1427 d->num_sec_device_types = s->num_sec_device_types;
1428
3071e181 1429 d->p2p_group_idle = s->p2p_group_idle;
b029bd33 1430 d->p2p_intra_bss = s->p2p_intra_bss;
acc247b2 1431 d->persistent_reconnect = s->persistent_reconnect;
f571b593 1432 d->max_num_sta = s->max_num_sta;
1298c145 1433 d->pbc_in_m1 = s->pbc_in_m1;
4342326f 1434 d->ignore_old_scan_res = s->ignore_old_scan_res;
41b1a76a 1435 d->beacon_int = s->beacon_int;
f62a3c2f 1436 d->dtim_period = s->dtim_period;
5046eb4e 1437 d->disassoc_low_ack = s->disassoc_low_ack;
f22f274b 1438 d->disable_scan_offload = s->disable_scan_offload;
86e32081
JM		 1439
1440 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1441 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1442 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1443 }
b22128ef
JM		 1444}
1445
1446
2e5ba4b6
AS		 1447static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1448 char *ifname, size_t len)
1449{
1450 char *ifname_ptr = wpa_s->ifname;
1451
1452 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1453 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1454 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1455 }
1456
1457 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1458 if (os_strlen(ifname) >= IFNAMSIZ &&
1459 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1460 /* Try to avoid going over the IFNAMSIZ length limit */
41c526f3 1461 os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
2e5ba4b6
AS		 1462 }
1463}
1464
1465
b22128ef
JM		 1466static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1467 enum wpa_driver_if_type type)
1468{
1469 char ifname[120], force_ifname[120];
1470
1471 if (wpa_s->pending_interface_name[0]) {
1472 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1473 "- skip creation of a new one");
1474 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1475 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1476 "unknown?! ifname='%s'",
1477 wpa_s->pending_interface_name);
1478 return -1;
1479 }
1480 return 0;
1481 }
1482
2e5ba4b6 1483 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
b22128ef
JM		 1484 force_ifname[0] = '\0';
1485
1486 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1487 ifname);
1488 wpa_s->p2p_group_idx++;
1489
1490 wpa_s->pending_interface_type = type;
1491 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
e17a2477 1492 wpa_s->pending_interface_addr, NULL) < 0) {
b22128ef
JM		 1493 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1494 "interface");
1495 return -1;
1496 }
1497
1498 if (force_ifname[0]) {
1499 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1500 force_ifname);
1501 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1502 sizeof(wpa_s->pending_interface_name));
1503 } else
1504 os_strlcpy(wpa_s->pending_interface_name, ifname,
1505 sizeof(wpa_s->pending_interface_name));
1506 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1507 MACSTR, wpa_s->pending_interface_name,
1508 MAC2STR(wpa_s->pending_interface_addr));
1509
1510 return 0;
1511}
1512
1513
1514static void wpas_p2p_remove_pending_group_interface(
1515 struct wpa_supplicant *wpa_s)
1516{
1517 if (!wpa_s->pending_interface_name[0] ||
1518 is_zero_ether_addr(wpa_s->pending_interface_addr))
1519 return; /* No pending virtual interface */
1520
1521 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1522 wpa_s->pending_interface_name);
1523 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1524 wpa_s->pending_interface_name);
1525 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1526 wpa_s->pending_interface_name[0] = '\0';
1527}
1528
1529
1530static struct wpa_supplicant *
1531wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1532{
1533 struct wpa_interface iface;
1534 struct wpa_supplicant *group_wpa_s;
1535
1536 if (!wpa_s->pending_interface_name[0]) {
1537 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
d75e8806
JM		 1538 if (!wpas_p2p_create_iface(wpa_s))
1539 return NULL;
1540 /*
1541 * Something has forced us to remove the pending interface; try
1542 * to create a new one and hope for the best that we will get
1543 * the same local address.
1544 */
1545 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1546 WPA_IF_P2P_CLIENT) < 0)
1547 return NULL;
b22128ef
JM		 1548 }
1549
1550 os_memset(&iface, 0, sizeof(iface));
1551 iface.ifname = wpa_s->pending_interface_name;
1552 iface.driver = wpa_s->driver->name;
78f79fe5
JM		 1553 if (wpa_s->conf->ctrl_interface == NULL &&
1554 wpa_s->parent != wpa_s &&
1555 wpa_s->p2p_mgmt &&
1556 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
1557 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
1558 else
1559 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
b22128ef
JM		 1560 iface.driver_param = wpa_s->conf->driver_param;
1561 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1562 if (group_wpa_s == NULL) {
1563 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1564 "wpa_supplicant interface");
1565 return NULL;
1566 }
1567 wpa_s->pending_interface_name[0] = '\0';
1568 group_wpa_s->parent = wpa_s;
1569 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1570 P2P_GROUP_INTERFACE_CLIENT;
1571 wpa_s->global->p2p_group_formation = group_wpa_s;
1572
1573 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1574
1575 return group_wpa_s;
1576}
1577
1578
1579static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1580 void *timeout_ctx)
1581{
1582 struct wpa_supplicant *wpa_s = eloop_ctx;
1583 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1075b295
JM		 1584 wpas_p2p_group_formation_failed(wpa_s);
1585}
1586
1587
1588void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s)
1589{
1590 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1591 wpa_s->parent, NULL);
b22128ef
JM		 1592 if (wpa_s->global->p2p)
1593 p2p_group_formation_failed(wpa_s->global->p2p);
1594 wpas_group_formation_completed(wpa_s, 0);
1595}
1596
1597
95fb2db2
JM		 1598static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
1599{
1600 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
1601 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1602 wpa_s->parent, NULL);
1603 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1604 wpa_s->parent, NULL);
1605 wpa_s->global->p2p_fail_on_wps_complete = 0;
1606}
1607
1608
b2b688d1
VKE		 1609void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
1610{
1611 if (wpa_s->global->p2p_group_formation != wpa_s)
1612 return;
1613 /* Speed up group formation timeout since this cannot succeed */
1614 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1615 wpa_s->parent, NULL);
1616 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1617 wpa_s->parent, NULL);
1618}
1619
1620
152cff6b 1621static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
b22128ef
JM		 1622{
1623 struct wpa_supplicant *wpa_s = ctx;
1624
8eada5ca 1625 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1626 wpa_drv_cancel_remain_on_channel(wpa_s);
1627 wpa_s->off_channel_freq = 0;
07a30a66 1628 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 1629 }
1630
1631 if (res->status) {
92c4465b
JM		 1632 wpa_msg_global(wpa_s, MSG_INFO,
1633 P2P_EVENT_GO_NEG_FAILURE "status=%d",
1634 res->status);
e5a359cf 1635 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef
JM		 1636 wpas_p2p_remove_pending_group_interface(wpa_s);
1637 return;
1638 }
1639
e2308e4b
RM		 1640 if (wpa_s->p2p_go_ht40)
1641 res->ht40 = 1;
20ea1ca4
EP		 1642 if (wpa_s->p2p_go_vht)
1643 res->vht = 1;
e2308e4b 1644
8d660e04
JM		 1645 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
1646 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
1647 " wps_method=%s",
1648 res->role_go ? "GO" : "client", res->freq, res->ht40,
1649 MAC2STR(res->peer_device_addr),
1650 MAC2STR(res->peer_interface_addr),
1651 p2p_wps_method_text(res->wps_method));
e5a359cf 1652 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef 1653
23c84252
JM		 1654 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1655 struct wpa_ssid *ssid;
1656 ssid = wpa_config_get_network(wpa_s->conf,
1657 wpa_s->p2p_persistent_id);
1658 if (ssid && ssid->disabled == 2 &&
1659 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1660 size_t len = os_strlen(ssid->passphrase);
1661 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1662 "on requested persistent group");
1663 os_memcpy(res->passphrase, ssid->passphrase, len);
1664 res->passphrase[len] = '\0';
1665 }
1666 }
1667
b22128ef
JM		 1668 if (wpa_s->create_p2p_iface) {
1669 struct wpa_supplicant *group_wpa_s =
1670 wpas_p2p_init_group_interface(wpa_s, res->role_go);
1671 if (group_wpa_s == NULL) {
1672 wpas_p2p_remove_pending_group_interface(wpa_s);
5eae87a7
EA		 1673 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
1674 wpa_s, NULL);
1675 wpas_p2p_group_formation_failed(wpa_s);
b22128ef
JM		 1676 return;
1677 }
3c5126a4 1678 if (group_wpa_s != wpa_s) {
b22128ef
JM		 1679 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1680 sizeof(group_wpa_s->p2p_pin));
3c5126a4
JM		 1681 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1682 }
b22128ef
JM		 1683 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1684 wpa_s->pending_interface_name[0] = '\0';
1685 group_wpa_s->p2p_in_provisioning = 1;
1686
1687 if (res->role_go)
1688 wpas_start_wps_go(group_wpa_s, res, 1);
1689 else
1690 wpas_start_wps_enrollee(group_wpa_s, res);
1691 } else {
1692 wpa_s->p2p_in_provisioning = 1;
1693 wpa_s->global->p2p_group_formation = wpa_s;
1694
1695 if (res->role_go)
1696 wpas_start_wps_go(wpa_s, res, 1);
1697 else
1698 wpas_start_wps_enrollee(ctx, res);
1699 }
1700
1701 wpa_s->p2p_long_listen = 0;
1702 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1703
1704 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ae3e3421
JM		 1705 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1706 (res->peer_config_timeout % 100) * 10000,
1707 wpas_p2p_group_formation_timeout, wpa_s, NULL);
b22128ef
JM		 1708}
1709
1710
152cff6b 1711static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
b22128ef
JM		 1712{
1713 struct wpa_supplicant *wpa_s = ctx;
92c4465b
JM		 1714 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1715 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
32d1bce0
KRK		 1716
1717 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
b22128ef
JM		 1718}
1719
1720
152cff6b
JM		 1721static void wpas_dev_found(void *ctx, const u8 *addr,
1722 const struct p2p_peer_info *info,
1723 int new_device)
b22128ef 1724{
5506d184 1725#ifndef CONFIG_NO_STDOUT_DEBUG
b22128ef
JM		 1726 struct wpa_supplicant *wpa_s = ctx;
1727 char devtype[WPS_DEV_TYPE_BUFSIZE];
b125c48f
DS		 1728 char *wfd_dev_info_hex = NULL;
1729
1730#ifdef CONFIG_WIFI_DISPLAY
1731 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
1732 WFD_SUBELEM_DEVICE_INFO);
1733#endif /* CONFIG_WIFI_DISPLAY */
c5db8e51 1734
92c4465b
JM		 1735 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1736 " p2p_dev_addr=" MACSTR
1737 " pri_dev_type=%s name='%s' config_methods=0x%x "
71a0e395 1738 "dev_capab=0x%x group_capab=0x%x%s%s%s",
92c4465b
JM		 1739 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1740 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1741 sizeof(devtype)),
b125c48f
DS		 1742 info->device_name, info->config_methods,
1743 info->dev_capab, info->group_capab,
1744 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
71a0e395
JM		 1745 wfd_dev_info_hex ? wfd_dev_info_hex : "",
1746 info->vendor_elems ? " vendor_elems=1" : "");
d642d2d2 1747
b125c48f 1748 os_free(wfd_dev_info_hex);
1b56d398 1749#endif /* CONFIG_NO_STDOUT_DEBUG */
b125c48f 1750
d642d2d2 1751 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
b22128ef
JM		 1752}
1753
1754
56eeb8f2
JB		 1755static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1756{
1757 struct wpa_supplicant *wpa_s = ctx;
1758
92c4465b
JM		 1759 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1760 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
3074d8f1 1761
56eeb8f2
JB		 1762 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1763}
1764
1765
710ae9ac
JM		 1766static void wpas_find_stopped(void *ctx)
1767{
1768 struct wpa_supplicant *wpa_s = ctx;
92c4465b 1769 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
710ae9ac
JM		 1770}
1771
1772
e1d1c8e2
JM		 1773struct wpas_p2p_listen_work {
1774 unsigned int freq;
1775 unsigned int duration;
1776 struct wpabuf *probe_resp_ie;
1777};
1778
1779
1780static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
b22128ef 1781{
e1d1c8e2
JM		 1782 if (lwork == NULL)
1783 return;
1784 wpabuf_free(lwork->probe_resp_ie);
1785 os_free(lwork);
1786}
1787
1788
1789static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
1790{
1791 struct wpas_p2p_listen_work *lwork;
1792
1793 if (!wpa_s->p2p_listen_work)
1794 return;
1795
1796 lwork = wpa_s->p2p_listen_work->ctx;
1797 wpas_p2p_listen_work_free(lwork);
1798 radio_work_done(wpa_s->p2p_listen_work);
1799 wpa_s->p2p_listen_work = NULL;
1800}
1801
1802
1803static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
1804{
1805 struct wpa_supplicant *wpa_s = work->wpa_s;
1806 struct wpas_p2p_listen_work *lwork = work->ctx;
1807
1808 if (deinit) {
b3253ebb
AO		 1809 if (work->started) {
1810 wpa_s->p2p_listen_work = NULL;
1811 wpas_stop_listen(wpa_s);
1812 }
e1d1c8e2
JM		 1813 wpas_p2p_listen_work_free(lwork);
1814 return;
1815 }
b22128ef 1816
e1d1c8e2
JM		 1817 wpa_s->p2p_listen_work = work;
1818
1819 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
b22128ef
JM		 1820
1821 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1822 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1823 "report received Probe Request frames");
e1d1c8e2
JM		 1824 wpas_p2p_listen_work_done(wpa_s);
1825 return;
b22128ef
JM		 1826 }
1827
e1d1c8e2
JM		 1828 wpa_s->pending_listen_freq = lwork->freq;
1829 wpa_s->pending_listen_duration = lwork->duration;
b22128ef 1830
e1d1c8e2
JM		 1831 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, lwork->duration) < 0)
1832 {
b22128ef
JM		 1833 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1834 "to remain on channel (%u MHz) for Listen "
e1d1c8e2
JM		 1835 "state", lwork->freq);
1836 wpas_p2p_listen_work_done(wpa_s);
b22128ef 1837 wpa_s->pending_listen_freq = 0;
e1d1c8e2 1838 return;
b22128ef 1839 }
09d660b9 1840 wpa_s->off_channel_freq = 0;
e1d1c8e2
JM		 1841 wpa_s->roc_waiting_drv_freq = lwork->freq;
1842}
1843
1844
1845static int wpas_start_listen(void *ctx, unsigned int freq,
1846 unsigned int duration,
1847 const struct wpabuf *probe_resp_ie)
1848{
1849 struct wpa_supplicant *wpa_s = ctx;
1850 struct wpas_p2p_listen_work *lwork;
1851
1852 if (wpa_s->p2p_listen_work) {
1853 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
1854 return -1;
1855 }
1856
1857 lwork = os_zalloc(sizeof(*lwork));
1858 if (lwork == NULL)
1859 return -1;
1860 lwork->freq = freq;
1861 lwork->duration = duration;
1862 if (probe_resp_ie) {
1863 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
1864 if (lwork->probe_resp_ie == NULL) {
1865 wpas_p2p_listen_work_free(lwork);
1866 return -1;
1867 }
1868 }
1869
1870 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
1871 lwork) < 0) {
1872 wpas_p2p_listen_work_free(lwork);
1873 return -1;
1874 }
b22128ef
JM		 1875
1876 return 0;
1877}
1878
1879
1880static void wpas_stop_listen(void *ctx)
1881{
1882 struct wpa_supplicant *wpa_s = ctx;
6cb22d2f 1883 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1884 wpa_drv_cancel_remain_on_channel(wpa_s);
1885 wpa_s->off_channel_freq = 0;
07a30a66 1886 wpa_s->roc_waiting_drv_freq = 0;
b22128ef 1887 }
839b33ad 1888 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
b22128ef 1889 wpa_drv_probe_req_report(wpa_s, 0);
e1d1c8e2 1890 wpas_p2p_listen_work_done(wpa_s);
b22128ef
JM		 1891}
1892
1893
1894static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1895{
1896 struct wpa_supplicant *wpa_s = ctx;
9dbf53fe 1897 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
b22128ef
JM		 1898}
1899
1900
8c9ad085
JM		 1901/*
1902 * DNS Header section is used only to calculate compression pointers, so the
1903 * contents of this data does not matter, but the length needs to be reserved
1904 * in the virtual packet.
1905 */
1906#define DNS_HEADER_LEN 12
1907
1908/*
1909 * 27-octet in-memory packet from P2P specification containing two implied
1910 * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
1911 */
1912#define P2P_SD_IN_MEMORY_LEN 27
1913
1914static int p2p_sd_dns_uncompress_label(char **upos, char *uend, u8 *start,
1915 u8 **spos, const u8 *end)
1916{
1917 while (*spos < end) {
1918 u8 val = ((*spos)[0] & 0xc0) >> 6;
1919 int len;
1920
1921 if (val == 1 || val == 2) {
1922 /* These are reserved values in RFC 1035 */
1923 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1924 "sequence starting with 0x%x", val);
1925 return -1;
1926 }
1927
1928 if (val == 3) {
1929 u16 offset;
1930 u8 *spos_tmp;
1931
1932 /* Offset */
1933 if (*spos + 2 > end) {
1934 wpa_printf(MSG_DEBUG, "P2P: No room for full "
1935 "DNS offset field");
1936 return -1;
1937 }
1938
1939 offset = (((*spos)[0] & 0x3f) << 8) | (*spos)[1];
1940 if (offset >= *spos - start) {
1941 wpa_printf(MSG_DEBUG, "P2P: Invalid DNS "
1942 "pointer offset %u", offset);
1943 return -1;
1944 }
1945
1946 (*spos) += 2;
1947 spos_tmp = start + offset;
1948 return p2p_sd_dns_uncompress_label(upos, uend, start,
1949 &spos_tmp,
1950 *spos - 2);
1951 }
1952
1953 /* Label */
1954 len = (*spos)[0] & 0x3f;
1955 if (len == 0)
1956 return 0;
1957
1958 (*spos)++;
1959 if (*spos + len > end) {
1960 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1961 "sequence - no room for label with length "
1962 "%u", len);
1963 return -1;
1964 }
1965
1966 if (*upos + len + 2 > uend)
1967 return -2;
1968
1969 os_memcpy(*upos, *spos, len);
1970 *spos += len;
1971 *upos += len;
1972 (*upos)[0] = '.';
1973 (*upos)++;
1974 (*upos)[0] = '\0';
1975 }
1976
1977 return 0;
1978}
1979
1980
1981/* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
1982 * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
1983 * not large enough */
1984static int p2p_sd_dns_uncompress(char *buf, size_t buf_len, const u8 *msg,
1985 size_t msg_len, size_t offset)
1986{
1987 /* 27-octet in-memory packet from P2P specification */
1988 const char *prefix = "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
1989 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
1990 u8 *tmp, *end, *spos;
1991 char *upos, *uend;
1992 int ret = 0;
1993
1994 if (buf_len < 2)
1995 return -1;
1996 if (offset > msg_len)
1997 return -1;
1998
1999 tmp = os_malloc(DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN + msg_len);
2000 if (tmp == NULL)
2001 return -1;
2002 spos = tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN;
2003 end = spos + msg_len;
2004 spos += offset;
2005
2006 os_memset(tmp, 0, DNS_HEADER_LEN);
2007 os_memcpy(tmp + DNS_HEADER_LEN, prefix, P2P_SD_IN_MEMORY_LEN);
2008 os_memcpy(tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN, msg, msg_len);
2009
2010 upos = buf;
2011 uend = buf + buf_len;
2012
2013 ret = p2p_sd_dns_uncompress_label(&upos, uend, tmp, &spos, end);
2014 if (ret) {
2015 os_free(tmp);
2016 return ret;
2017 }
2018
2019 if (upos == buf) {
2020 upos[0] = '.';
2021 upos[1] = '\0';
2022 } else if (upos[-1] == '.')
2023 upos[-1] = '\0';
2024
2025 os_free(tmp);
2026 return 0;
2027}
2028
2029
b22128ef
JM		 2030static struct p2p_srv_bonjour *
2031wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
2032 const struct wpabuf *query)
2033{
2034 struct p2p_srv_bonjour *bsrv;
2035 size_t len;
2036
2037 len = wpabuf_len(query);
2038 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2039 struct p2p_srv_bonjour, list) {
2040 if (len == wpabuf_len(bsrv->query) &&
2041 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
2042 len) == 0)
2043 return bsrv;
2044 }
2045 return NULL;
2046}
2047
2048
2049static struct p2p_srv_upnp *
2050wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
2051 const char *service)
2052{
2053 struct p2p_srv_upnp *usrv;
2054
2055 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2056 struct p2p_srv_upnp, list) {
2057 if (version == usrv->version &&
2058 os_strcmp(service, usrv->service) == 0)
2059 return usrv;
2060 }
2061 return NULL;
2062}
2063
2064
2065static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
2066 u8 srv_trans_id)
2067{
2068 u8 *len_pos;
2069
2070 if (wpabuf_tailroom(resp) < 5)
2071 return;
2072
2073 /* Length (to be filled) */
2074 len_pos = wpabuf_put(resp, 2);
2075 wpabuf_put_u8(resp, srv_proto);
2076 wpabuf_put_u8(resp, srv_trans_id);
2077 /* Status Code */
2078 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
2079 /* Response Data: empty */
2080 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2081}
2082
2083
2084static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
2085 struct wpabuf *resp, u8 srv_trans_id)
2086{
2087 struct p2p_srv_bonjour *bsrv;
2088 u8 *len_pos;
2089
2090 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
2091
2092 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2093 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2094 return;
2095 }
2096
2097 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2098 struct p2p_srv_bonjour, list) {
2099 if (wpabuf_tailroom(resp) <
2100 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
2101 return;
2102 /* Length (to be filled) */
2103 len_pos = wpabuf_put(resp, 2);
2104 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2105 wpabuf_put_u8(resp, srv_trans_id);
2106 /* Status Code */
2107 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2108 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2109 wpabuf_head(bsrv->resp),
2110 wpabuf_len(bsrv->resp));
2111 /* Response Data */
2112 wpabuf_put_buf(resp, bsrv->query); /* Key */
2113 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2114 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2115 2);
2116 }
2117}
2118
2119
8c9ad085
JM		 2120static int match_bonjour_query(struct p2p_srv_bonjour *bsrv, const u8 *query,
2121 size_t query_len)
2122{
2123 char str_rx[256], str_srv[256];
2124
2125 if (query_len < 3 || wpabuf_len(bsrv->query) < 3)
2126 return 0; /* Too short to include DNS Type and Version */
2127 if (os_memcmp(query + query_len - 3,
2128 wpabuf_head_u8(bsrv->query) + wpabuf_len(bsrv->query) - 3,
2129 3) != 0)
2130 return 0; /* Mismatch in DNS Type or Version */
2131 if (query_len == wpabuf_len(bsrv->query) &&
2132 os_memcmp(query, wpabuf_head(bsrv->query), query_len - 3) == 0)
2133 return 1; /* Binary match */
2134
2135 if (p2p_sd_dns_uncompress(str_rx, sizeof(str_rx), query, query_len - 3,
2136 0))
2137 return 0; /* Failed to uncompress query */
2138 if (p2p_sd_dns_uncompress(str_srv, sizeof(str_srv),
2139 wpabuf_head(bsrv->query),
2140 wpabuf_len(bsrv->query) - 3, 0))
2141 return 0; /* Failed to uncompress service */
2142
2143 return os_strcmp(str_rx, str_srv) == 0;
2144}
2145
2146
b22128ef
JM		 2147static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
2148 struct wpabuf *resp, u8 srv_trans_id,
2149 const u8 *query, size_t query_len)
2150{
2151 struct p2p_srv_bonjour *bsrv;
b22128ef 2152 u8 *len_pos;
560f8bda 2153 int matches = 0;
b22128ef
JM		 2154
2155 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
2156 query, query_len);
2157 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2158 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2159 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
2160 srv_trans_id);
2161 return;
2162 }
2163
2164 if (query_len == 0) {
2165 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2166 return;
2167 }
2168
560f8bda
JM		 2169 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2170 struct p2p_srv_bonjour, list) {
8c9ad085 2171 if (!match_bonjour_query(bsrv, query, query_len))
560f8bda
JM		 2172 continue;
2173
2174 if (wpabuf_tailroom(resp) <
2175 5 + query_len + wpabuf_len(bsrv->resp))
2176 return;
2177
2178 matches++;
b22128ef 2179
560f8bda
JM		 2180 /* Length (to be filled) */
2181 len_pos = wpabuf_put(resp, 2);
2182 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2183 wpabuf_put_u8(resp, srv_trans_id);
2184
2185 /* Status Code */
2186 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2187 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2188 wpabuf_head(bsrv->resp),
2189 wpabuf_len(bsrv->resp));
2190
2191 /* Response Data */
2192 wpabuf_put_data(resp, query, query_len); /* Key */
2193 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2194
2195 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2196 }
2197
2198 if (matches == 0) {
b22128ef
JM		 2199 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
2200 "available");
560f8bda
JM		 2201 if (wpabuf_tailroom(resp) < 5)
2202 return;
2203
2204 /* Length (to be filled) */
2205 len_pos = wpabuf_put(resp, 2);
2206 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2207 wpabuf_put_u8(resp, srv_trans_id);
b22128ef
JM		 2208
2209 /* Status Code */
bf608cad 2210 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 2211 /* Response Data: empty */
2212 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2213 2);
b22128ef 2214 }
b22128ef
JM		 2215}
2216
2217
2218static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
2219 struct wpabuf *resp, u8 srv_trans_id)
2220{
2221 struct p2p_srv_upnp *usrv;
2222 u8 *len_pos;
2223
2224 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
2225
2226 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2227 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2228 return;
2229 }
2230
2231 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2232 struct p2p_srv_upnp, list) {
2233 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
2234 return;
2235
2236 /* Length (to be filled) */
2237 len_pos = wpabuf_put(resp, 2);
2238 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2239 wpabuf_put_u8(resp, srv_trans_id);
2240
2241 /* Status Code */
2242 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2243 /* Response Data */
2244 wpabuf_put_u8(resp, usrv->version);
2245 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2246 usrv->service);
2247 wpabuf_put_str(resp, usrv->service);
2248 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2249 2);
2250 }
2251}
2252
2253
2254static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
2255 struct wpabuf *resp, u8 srv_trans_id,
2256 const u8 *query, size_t query_len)
2257{
2258 struct p2p_srv_upnp *usrv;
2259 u8 *len_pos;
2260 u8 version;
2261 char *str;
2262 int count = 0;
2263
2264 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
2265 query, query_len);
2266
2267 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2268 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2269 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
2270 srv_trans_id);
2271 return;
2272 }
2273
2274 if (query_len == 0) {
2275 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2276 return;
2277 }
2278
b22128ef
JM		 2279 if (wpabuf_tailroom(resp) < 5)
2280 return;
2281
2282 /* Length (to be filled) */
2283 len_pos = wpabuf_put(resp, 2);
2284 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2285 wpabuf_put_u8(resp, srv_trans_id);
2286
79222cfa
JM		 2287 version = query[0];
2288 str = os_malloc(query_len);
2289 if (str == NULL)
2290 return;
2291 os_memcpy(str, query + 1, query_len - 1);
2292 str[query_len - 1] = '\0';
2293
b22128ef
JM		 2294 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2295 struct p2p_srv_upnp, list) {
2296 if (version != usrv->version)
2297 continue;
2298
2299 if (os_strcmp(str, "ssdp:all") != 0 &&
2300 os_strstr(usrv->service, str) == NULL)
2301 continue;
2302
2303 if (wpabuf_tailroom(resp) < 2)
2304 break;
2305 if (count == 0) {
2306 /* Status Code */
2307 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2308 /* Response Data */
2309 wpabuf_put_u8(resp, version);
2310 } else
2311 wpabuf_put_u8(resp, ',');
2312
2313 count++;
2314
2315 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2316 usrv->service);
2317 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
2318 break;
2319 wpabuf_put_str(resp, usrv->service);
2320 }
714b8b53 2321 os_free(str);
b22128ef
JM		 2322
2323 if (count == 0) {
2324 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
2325 "available");
2326 /* Status Code */
bf608cad 2327 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 2328 /* Response Data: empty */
2329 }
2330
2331 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2332}
2333
2334
6ffdc2f7
JM		 2335#ifdef CONFIG_WIFI_DISPLAY
2336static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
2337 struct wpabuf *resp, u8 srv_trans_id,
2338 const u8 *query, size_t query_len)
2339{
2340 const u8 *pos;
2341 u8 role;
2342 u8 *len_pos;
2343
2344 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
2345
2346 if (!wpa_s->global->wifi_display) {
2347 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
2348 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
2349 srv_trans_id);
2350 return;
2351 }
2352
2353 if (query_len < 1) {
2354 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
2355 "Role");
2356 return;
2357 }
2358
2359 if (wpabuf_tailroom(resp) < 5)
2360 return;
2361
2362 pos = query;
2363 role = *pos++;
2364 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
2365
2366 /* TODO: role specific handling */
2367
2368 /* Length (to be filled) */
2369 len_pos = wpabuf_put(resp, 2);
2370 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
2371 wpabuf_put_u8(resp, srv_trans_id);
2372 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
2373
2374 while (pos < query + query_len) {
2375 if (*pos < MAX_WFD_SUBELEMS &&
2376 wpa_s->global->wfd_subelem[*pos] &&
2377 wpabuf_tailroom(resp) >=
2378 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
2379 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
2380 "subelement %u", *pos);
2381 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
2382 }
2383 pos++;
2384 }
2385
2386 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2387}
2388#endif /* CONFIG_WIFI_DISPLAY */
2389
2390
152cff6b
JM		 2391static void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
2392 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
b22128ef
JM		 2393{
2394 struct wpa_supplicant *wpa_s = ctx;
2395 const u8 *pos = tlvs;
2396 const u8 *end = tlvs + tlvs_len;
2397 const u8 *tlv_end;
2398 u16 slen;
2399 struct wpabuf *resp;
2400 u8 srv_proto, srv_trans_id;
2401 size_t buf_len;
2402 char *buf;
2403
2404 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
2405 tlvs, tlvs_len);
2406 buf_len = 2 * tlvs_len + 1;
2407 buf = os_malloc(buf_len);
2408 if (buf) {
2409 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2410 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
2411 MACSTR " %u %u %s",
2412 freq, MAC2STR(sa), dialog_token, update_indic,
2413 buf);
2414 os_free(buf);
2415 }
2416
3b655312 2417 if (wpa_s->p2p_sd_over_ctrl_iface) {
2418 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2419 update_indic, tlvs, tlvs_len);
b22128ef 2420 return; /* to be processed by an external program */
3b655312 2421 }
b22128ef
JM		 2422
2423 resp = wpabuf_alloc(10000);
2424 if (resp == NULL)
2425 return;
2426
2427 while (pos + 1 < end) {
2428 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
2429 slen = WPA_GET_LE16(pos);
2430 pos += 2;
2431 if (pos + slen > end || slen < 2) {
2432 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
2433 "length");
2434 wpabuf_free(resp);
2435 return;
2436 }
2437 tlv_end = pos + slen;
2438
2439 srv_proto = *pos++;
2440 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2441 srv_proto);
2442 srv_trans_id = *pos++;
2443 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2444 srv_trans_id);
2445
2446 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
2447 pos, tlv_end - pos);
2448
6e6963ea
JM		 2449
2450 if (wpa_s->force_long_sd) {
2451 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
2452 "response");
2453 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2454 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2455 goto done;
2456 }
2457
b22128ef
JM		 2458 switch (srv_proto) {
2459 case P2P_SERV_ALL_SERVICES:
2460 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
2461 "for all services");
2462 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
2463 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2464 wpa_printf(MSG_DEBUG, "P2P: No service "
2465 "discovery protocols available");
2466 wpas_sd_add_proto_not_avail(
2467 resp, P2P_SERV_ALL_SERVICES,
2468 srv_trans_id);
2469 break;
2470 }
2471 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2472 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2473 break;
2474 case P2P_SERV_BONJOUR:
2475 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
2476 pos, tlv_end - pos);
2477 break;
2478 case P2P_SERV_UPNP:
2479 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
2480 pos, tlv_end - pos);
2481 break;
6ffdc2f7
JM		 2482#ifdef CONFIG_WIFI_DISPLAY
2483 case P2P_SERV_WIFI_DISPLAY:
2484 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
2485 pos, tlv_end - pos);
2486 break;
2487#endif /* CONFIG_WIFI_DISPLAY */
b22128ef
JM		 2488 default:
2489 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
2490 "protocol %u", srv_proto);
2491 wpas_sd_add_proto_not_avail(resp, srv_proto,
2492 srv_trans_id);
2493 break;
2494 }
2495
2496 pos = tlv_end;
2497 }
2498
6e6963ea 2499done:
e1653cac
KRK		 2500 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2501 update_indic, tlvs, tlvs_len);
2502
b22128ef
JM		 2503 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
2504
2505 wpabuf_free(resp);
2506}
2507
2508
152cff6b
JM		 2509static void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
2510 const u8 *tlvs, size_t tlvs_len)
b22128ef
JM		 2511{
2512 struct wpa_supplicant *wpa_s = ctx;
2513 const u8 *pos = tlvs;
2514 const u8 *end = tlvs + tlvs_len;
2515 const u8 *tlv_end;
2516 u16 slen;
2517 size_t buf_len;
2518 char *buf;
2519
2520 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
2521 tlvs, tlvs_len);
18708aad
JM		 2522 if (tlvs_len > 1500) {
2523 /* TODO: better way for handling this */
2524 wpa_msg_ctrl(wpa_s, MSG_INFO,
2525 P2P_EVENT_SERV_DISC_RESP MACSTR
2526 " %u <long response: %u bytes>",
2527 MAC2STR(sa), update_indic,
2528 (unsigned int) tlvs_len);
2529 } else {
2530 buf_len = 2 * tlvs_len + 1;
2531 buf = os_malloc(buf_len);
2532 if (buf) {
2533 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2534 wpa_msg_ctrl(wpa_s, MSG_INFO,
2535 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
2536 MAC2STR(sa), update_indic, buf);
2537 os_free(buf);
2538 }
b22128ef
JM		 2539 }
2540
2541 while (pos < end) {
2542 u8 srv_proto, srv_trans_id, status;
2543
2544 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
2545 slen = WPA_GET_LE16(pos);
2546 pos += 2;
2547 if (pos + slen > end || slen < 3) {
2548 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
2549 "length");
2550 return;
2551 }
2552 tlv_end = pos + slen;
2553
2554 srv_proto = *pos++;
2555 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2556 srv_proto);
2557 srv_trans_id = *pos++;
2558 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2559 srv_trans_id);
2560 status = *pos++;
2561 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
2562 status);
2563
2564 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
2565 pos, tlv_end - pos);
2566
2567 pos = tlv_end;
2568 }
43a26f60
KRK		 2569
2570 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
b22128ef
JM		 2571}
2572
2573
7165c5dc
JM		 2574u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
2575 const struct wpabuf *tlvs)
b22128ef 2576{
9526fd29 2577 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7165c5dc
JM		 2578 return 0;
2579 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
b22128ef
JM		 2580}
2581
2582
7165c5dc
JM		 2583u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
2584 u8 version, const char *query)
b22128ef
JM		 2585{
2586 struct wpabuf *tlvs;
7165c5dc 2587 u64 ret;
b22128ef
JM		 2588
2589 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
2590 if (tlvs == NULL)
7165c5dc 2591 return 0;
b22128ef
JM		 2592 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
2593 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
2594 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
2595 wpabuf_put_u8(tlvs, version);
2596 wpabuf_put_str(tlvs, query);
2597 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
2598 wpabuf_free(tlvs);
2599 return ret;
2600}
2601
2602
347d6a5b
JM		 2603#ifdef CONFIG_WIFI_DISPLAY
2604
2605static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
2606 const struct wpabuf *tlvs)
2607{
347d6a5b
JM		 2608 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2609 return 0;
2610 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
2611}
2612
2613
2614#define MAX_WFD_SD_SUBELEMS 20
2615
2616static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
2617 const char *subelems)
2618{
2619 u8 *len;
2620 const char *pos;
2621 int val;
2622 int count = 0;
2623
2624 len = wpabuf_put(tlvs, 2);
2625 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
2626 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
2627
2628 wpabuf_put_u8(tlvs, role);
2629
2630 pos = subelems;
2631 while (*pos) {
2632 val = atoi(pos);
2633 if (val >= 0 && val < 256) {
2634 wpabuf_put_u8(tlvs, val);
2635 count++;
2636 if (count == MAX_WFD_SD_SUBELEMS)
2637 break;
2638 }
2639 pos = os_strchr(pos + 1, ',');
2640 if (pos == NULL)
2641 break;
2642 pos++;
2643 }
2644
2645 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
2646}
2647
2648
2649u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
2650 const u8 *dst, const char *role)
2651{
2652 struct wpabuf *tlvs;
2653 u64 ret;
2654 const char *subelems;
2655 u8 id = 1;
2656
2657 subelems = os_strchr(role, ' ');
2658 if (subelems == NULL)
2659 return 0;
2660 subelems++;
2661
2662 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
2663 if (tlvs == NULL)
2664 return 0;
2665
2666 if (os_strstr(role, "[source]"))
2667 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
2668 if (os_strstr(role, "[pri-sink]"))
2669 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
2670 if (os_strstr(role, "[sec-sink]"))
2671 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
2672 if (os_strstr(role, "[source+sink]"))
2673 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
2674
2675 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
2676 wpabuf_free(tlvs);
2677 return ret;
2678}
2679
2680#endif /* CONFIG_WIFI_DISPLAY */
2681
2682
7165c5dc 2683int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
b22128ef 2684{
9526fd29
JM		 2685 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2686 return -1;
7165c5dc
JM		 2687 return p2p_sd_cancel_request(wpa_s->global->p2p,
2688 (void *) (uintptr_t) req);
b22128ef
JM		 2689}
2690
2691
2692void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
2693 const u8 *dst, u8 dialog_token,
2694 const struct wpabuf *resp_tlvs)
2695{
9526fd29
JM		 2696 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2697 return;
b22128ef
JM		 2698 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
2699 resp_tlvs);
2700}
2701
2702
2703void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
2704{
9526fd29
JM		 2705 if (wpa_s->global->p2p)
2706 p2p_sd_service_update(wpa_s->global->p2p);
b22128ef
JM		 2707}
2708
2709
2710static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
2711{
2712 dl_list_del(&bsrv->list);
2713 wpabuf_free(bsrv->query);
2714 wpabuf_free(bsrv->resp);
2715 os_free(bsrv);
2716}
2717
2718
2719static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
2720{
2721 dl_list_del(&usrv->list);
2722 os_free(usrv->service);
2723 os_free(usrv);
2724}
2725
2726
2727void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
2728{
2729 struct p2p_srv_bonjour *bsrv, *bn;
2730 struct p2p_srv_upnp *usrv, *un;
2731
2732 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
2733 struct p2p_srv_bonjour, list)
2734 wpas_p2p_srv_bonjour_free(bsrv);
2735
2736 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
2737 struct p2p_srv_upnp, list)
2738 wpas_p2p_srv_upnp_free(usrv);
2739
2740 wpas_p2p_sd_service_update(wpa_s);
2741}
2742
2743
2744int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
2745 struct wpabuf *query, struct wpabuf *resp)
2746{
2747 struct p2p_srv_bonjour *bsrv;
2748
b22128ef
JM		 2749 bsrv = os_zalloc(sizeof(*bsrv));
2750 if (bsrv == NULL)
2751 return -1;
2752 bsrv->query = query;
2753 bsrv->resp = resp;
2754 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
2755
2756 wpas_p2p_sd_service_update(wpa_s);
2757 return 0;
2758}
2759
2760
2761int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
2762 const struct wpabuf *query)
2763{
2764 struct p2p_srv_bonjour *bsrv;
2765
2766 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
2767 if (bsrv == NULL)
2768 return -1;
2769 wpas_p2p_srv_bonjour_free(bsrv);
2770 wpas_p2p_sd_service_update(wpa_s);
2771 return 0;
2772}
2773
2774
2775int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
2776 const char *service)
2777{
2778 struct p2p_srv_upnp *usrv;
2779
2780 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
2781 return 0; /* Already listed */
2782 usrv = os_zalloc(sizeof(*usrv));
2783 if (usrv == NULL)
2784 return -1;
2785 usrv->version = version;
2786 usrv->service = os_strdup(service);
2787 if (usrv->service == NULL) {
2788 os_free(usrv);
2789 return -1;
2790 }
2791 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
2792
2793 wpas_p2p_sd_service_update(wpa_s);
2794 return 0;
2795}
2796
2797
2798int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
2799 const char *service)
2800{
2801 struct p2p_srv_upnp *usrv;
2802
2803 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
2804 if (usrv == NULL)
2805 return -1;
2806 wpas_p2p_srv_upnp_free(usrv);
2807 wpas_p2p_sd_service_update(wpa_s);
2808 return 0;
2809}
2810
2811
2812static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
bbeee9b0
JB		 2813 const u8 *peer, const char *params,
2814 unsigned int generated_pin)
b22128ef 2815{
92c4465b
JM		 2816 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2817 " %08d%s", MAC2STR(peer), generated_pin, params);
b22128ef
JM		 2818}
2819
2820
2821static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2822 const u8 *peer, const char *params)
2823{
92c4465b
JM		 2824 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2825 "%s", MAC2STR(peer), params);
b22128ef
JM		 2826}
2827
2828
152cff6b
JM		 2829static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2830 const u8 *dev_addr, const u8 *pri_dev_type,
2831 const char *dev_name, u16 supp_config_methods,
2832 u8 dev_capab, u8 group_capab, const u8 *group_id,
2833 size_t group_id_len)
b22128ef
JM		 2834{
2835 struct wpa_supplicant *wpa_s = ctx;
2836 char devtype[WPS_DEV_TYPE_BUFSIZE];
c3f42784 2837 char params[300];
b22128ef 2838 u8 empty_dev_type[8];
bbeee9b0 2839 unsigned int generated_pin = 0;
c3f42784
JM		 2840 struct wpa_supplicant *group = NULL;
2841
2842 if (group_id) {
2843 for (group = wpa_s->global->ifaces; group; group = group->next)
2844 {
2845 struct wpa_ssid *s = group->current_ssid;
2846 if (s != NULL &&
2847 s->mode == WPAS_MODE_P2P_GO &&
2848 group_id_len - ETH_ALEN == s->ssid_len &&
2849 os_memcmp(group_id + ETH_ALEN, s->ssid,
2850 s->ssid_len) == 0)
2851 break;
2852 }
2853 }
b22128ef
JM		 2854
2855 if (pri_dev_type == NULL) {
2856 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2857 pri_dev_type = empty_dev_type;
2858 }
2859 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2860 " pri_dev_type=%s name='%s' config_methods=0x%x "
c3f42784 2861 "dev_capab=0x%x group_capab=0x%x%s%s",
b22128ef
JM		 2862 MAC2STR(dev_addr),
2863 wps_dev_type_bin2str(pri_dev_type, devtype,
2864 sizeof(devtype)),
c3f42784
JM		 2865 dev_name, supp_config_methods, dev_capab, group_capab,
2866 group ? " group=" : "",
2867 group ? group->ifname : "");
b22128ef
JM		 2868 params[sizeof(params) - 1] = '\0';
2869
bbeee9b0
JB		 2870 if (config_methods & WPS_CONFIG_DISPLAY) {
2871 generated_pin = wps_generate_pin();
2872 wpas_prov_disc_local_display(wpa_s, peer, params,
2873 generated_pin);
2874 } else if (config_methods & WPS_CONFIG_KEYPAD)
b22128ef
JM		 2875 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2876 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
92c4465b
JM		 2877 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2878 MACSTR "%s", MAC2STR(peer), params);
dd8a7e05
JB		 2879
2880 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2881 P2P_PROV_DISC_SUCCESS,
2882 config_methods, generated_pin);
b22128ef
JM		 2883}
2884
2885
152cff6b 2886static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
b22128ef
JM		 2887{
2888 struct wpa_supplicant *wpa_s = ctx;
bbeee9b0 2889 unsigned int generated_pin = 0;
0918c4bf 2890 char params[20];
bbeee9b0 2891
c1931635
JM		 2892 if (wpa_s->pending_pd_before_join &&
2893 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2894 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2895 wpa_s->pending_pd_before_join = 0;
2896 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2897 "join-existing-group operation");
23318bea 2898 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
c1931635
JM		 2899 return;
2900 }
2901
0918c4bf
JM		 2902 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2903 wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2904 os_snprintf(params, sizeof(params), " peer_go=%d",
2905 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2906 else
2907 params[0] = '\0';
2908
b22128ef 2909 if (config_methods & WPS_CONFIG_DISPLAY)
0918c4bf 2910 wpas_prov_disc_local_keypad(wpa_s, peer, params);
bbeee9b0
JB		 2911 else if (config_methods & WPS_CONFIG_KEYPAD) {
2912 generated_pin = wps_generate_pin();
0918c4bf
JM		 2913 wpas_prov_disc_local_display(wpa_s, peer, params,
2914 generated_pin);
bbeee9b0 2915 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
92c4465b
JM		 2916 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2917 MACSTR "%s", MAC2STR(peer), params);
a482883f 2918
dd8a7e05
JB		 2919 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2920 P2P_PROV_DISC_SUCCESS,
2921 config_methods, generated_pin);
b22128ef
JM		 2922}
2923
2924
19df9b07
JM		 2925static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2926 enum p2p_prov_disc_status status)
dd8a7e05
JB		 2927{
2928 struct wpa_supplicant *wpa_s = ctx;
2929
aa9bb764
JM		 2930 if (wpa_s->p2p_fallback_to_go_neg) {
2931 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2932 "failed - fall back to GO Negotiation");
2933 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2934 return;
2935 }
2936
175171ac
JM		 2937 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2938 wpa_s->pending_pd_before_join = 0;
2939 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2940 "join-existing-group operation (no ACK for PD "
2941 "Req attempts)");
23318bea 2942 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
175171ac
JM		 2943 return;
2944 }
2945
92c4465b
JM		 2946 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2947 " p2p_dev_addr=" MACSTR " status=%d",
2948 MAC2STR(peer), status);
f65a239b 2949
dd8a7e05
JB		 2950 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2951 status, 0, 0);
2952}
2953
2954
72728c6f
SL		 2955static int freq_included(const struct p2p_channels *channels, unsigned int freq)
2956{
2957 if (channels == NULL)
2958 return 1; /* Assume no restrictions */
2959 return p2p_channels_includes_freq(channels, freq);
2960
2961}
2962
2963
a0c90bb0
IP		 2964/**
2965 * Pick the best frequency to use from all the currently used frequencies.
2966 */
2967static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2968 struct wpa_used_freq_data *freqs,
2969 unsigned int num)
2970{
2971 unsigned int i, c;
2972
2973 /* find a candidate freq that is supported by P2P */
2974 for (c = 0; c < num; c++)
2975 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2976 break;
2977
2978 if (c == num)
2979 return 0;
2980
2981 /* once we have a candidate, try to find a 'better' one */
2982 for (i = c + 1; i < num; i++) {
2983 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2984 continue;
2985
2986 /*
2987 * 1. Infrastructure station interfaces have higher preference.
2988 * 2. P2P Clients have higher preference.
2989 * 3. All others.
2990 */
2991 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2992 c = i;
2993 break;
2994 }
2995
2996 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2997 c = i;
2998 }
2999 return freqs[c].freq;
3000}
3001
3002
b22128ef
JM		 3003static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
3004 const u8 *go_dev_addr, const u8 *ssid,
3005 size_t ssid_len, int *go, u8 *group_bssid,
72728c6f 3006 int *force_freq, int persistent_group,
8e9f53c3
JM		 3007 const struct p2p_channels *channels,
3008 int dev_pw_id)
b22128ef
JM		 3009{
3010 struct wpa_supplicant *wpa_s = ctx;
3011 struct wpa_ssid *s;
a0c90bb0 3012 struct wpa_used_freq_data *freqs;
ab72eb52 3013 struct wpa_supplicant *grp;
a0c90bb0 3014 int best_freq;
b22128ef
JM		 3015
3016 if (!persistent_group) {
3017 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
c48414af
JM		 3018 " to join an active group (SSID: %s)",
3019 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
108def93 3020 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
131cb37c
JM		 3021 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
3022 == 0 ||
3023 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
108def93
JM		 3024 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
3025 "authorized invitation");
3026 goto accept_inv;
3027 }
8e9f53c3
JM		 3028
3029#ifdef CONFIG_WPS_NFC
3030 if (dev_pw_id >= 0 && wpa_s->parent->p2p_nfc_tag_enabled &&
3031 dev_pw_id == wpa_s->parent->p2p_oob_dev_pw_id) {
3032 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
3033 wpa_s->parent->p2p_wps_method = WPS_NFC;
3034 wpa_s->parent->pending_join_wps_method = WPS_NFC;
3035 os_memcpy(wpa_s->parent->pending_join_dev_addr,
3036 go_dev_addr, ETH_ALEN);
3037 os_memcpy(wpa_s->parent->pending_join_iface_addr,
3038 bssid, ETH_ALEN);
3039 goto accept_inv;
3040 }
3041#endif /* CONFIG_WPS_NFC */
3042
b22128ef
JM		 3043 /*
3044 * Do not accept the invitation automatically; notify user and
3045 * request approval.
3046 */
3047 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
3048 }
3049
ab72eb52
JM		 3050 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
3051 if (grp) {
3052 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
3053 "running persistent group");
3054 if (*go)
3055 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
3056 goto accept_inv;
3057 }
3058
77e4e853
JM		 3059 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
3060 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
3061 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
3062 "invitation to re-invoke a persistent group");
829a1b32 3063 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
77e4e853 3064 } else if (!wpa_s->conf->persistent_reconnect)
b22128ef
JM		 3065 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
3066
3067 for (s = wpa_s->conf->ssid; s; s = s->next) {
3068 if (s->disabled == 2 &&
3069 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
3070 s->ssid_len == ssid_len &&
3071 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3072 break;
3073 }
3074
3075 if (!s) {
3076 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
3077 " requested reinvocation of an unknown group",
3078 MAC2STR(sa));
3079 return P2P_SC_FAIL_UNKNOWN_GROUP;
3080 }
3081
3082 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
3083 *go = 1;
3084 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3085 wpa_printf(MSG_DEBUG, "P2P: The only available "
3086 "interface is already in use - reject "
3087 "invitation");
3088 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
3089 }
3090 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
3091 } else if (s->mode == WPAS_MODE_P2P_GO) {
3092 *go = 1;
3093 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
3094 {
3095 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3096 "interface address for the group");
3097 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
3098 }
3099 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
3100 ETH_ALEN);
3101 }
3102
108def93 3103accept_inv:
6cb27aa8
JM		 3104 wpas_p2p_set_own_freq_preference(wpa_s, 0);
3105
a0c90bb0
IP		 3106 best_freq = 0;
3107 freqs = os_calloc(wpa_s->num_multichan_concurrent,
3108 sizeof(struct wpa_used_freq_data));
3109 if (freqs) {
3110 int num_channels = wpa_s->num_multichan_concurrent;
3111 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
3112 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
3113 os_free(freqs);
3114 }
3115
0d08efa4 3116 /* Get one of the frequencies currently in use */
a0c90bb0 3117 if (best_freq > 0) {
21e491f2 3118 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
a0c90bb0 3119 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
21e491f2
JM		 3120
3121 if (wpa_s->num_multichan_concurrent < 2 ||
3122 wpas_p2p_num_unused_channels(wpa_s) < 1) {
3123 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 3124 *force_freq = best_freq;
21e491f2 3125 }
b22128ef
JM		 3126 }
3127
0d08efa4
IP		 3128 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
3129 wpas_p2p_num_unused_channels(wpa_s) > 0) {
72728c6f
SL		 3130 if (*go == 0) {
3131 /* We are the client */
3132 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
3133 "running a GO but we are capable of MCC, "
3134 "figure out the best channel to use");
3135 *force_freq = 0;
3136 } else if (!freq_included(channels, *force_freq)) {
3137 /* We are the GO, and *force_freq is not in the
3138 * intersection */
3139 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
3140 "in intersection but we are capable of MCC, "
3141 "figure out the best channel to use",
3142 *force_freq);
3143 *force_freq = 0;
3144 }
3145 }
3146
b22128ef
JM		 3147 return P2P_SC_SUCCESS;
3148}
3149
3150
3151static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
3152 const u8 *ssid, size_t ssid_len,
3153 const u8 *go_dev_addr, u8 status,
3154 int op_freq)
3155{
3156 struct wpa_supplicant *wpa_s = ctx;
3157 struct wpa_ssid *s;
3158
3159 for (s = wpa_s->conf->ssid; s; s = s->next) {
3160 if (s->disabled == 2 &&
3161 s->ssid_len == ssid_len &&
3162 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3163 break;
3164 }
3165
3166 if (status == P2P_SC_SUCCESS) {
3167 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
c48414af
JM		 3168 " was accepted; op_freq=%d MHz, SSID=%s",
3169 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
b22128ef 3170 if (s) {
2cd07584 3171 int go = s->mode == WPAS_MODE_P2P_GO;
b22128ef 3172 wpas_p2p_group_add_persistent(
41d5ce9e 3173 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
bbc6c729 3174 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
2049af2b 3175 } else if (bssid) {
67527166 3176 wpa_s->user_initiated_pd = 0;
108def93 3177 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
23318bea 3178 wpa_s->p2p_wps_method, 0, op_freq,
c48414af 3179 ssid, ssid_len);
b22128ef
JM		 3180 }
3181 return;
3182 }
3183
3184 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3185 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3186 " was rejected (status %u)", MAC2STR(sa), status);
3187 return;
3188 }
3189
3190 if (!s) {
3191 if (bssid) {
92c4465b
JM		 3192 wpa_msg_global(wpa_s, MSG_INFO,
3193 P2P_EVENT_INVITATION_RECEIVED
3194 "sa=" MACSTR " go_dev_addr=" MACSTR
3195 " bssid=" MACSTR " unknown-network",
3196 MAC2STR(sa), MAC2STR(go_dev_addr),
3197 MAC2STR(bssid));
b22128ef 3198 } else {
92c4465b
JM		 3199 wpa_msg_global(wpa_s, MSG_INFO,
3200 P2P_EVENT_INVITATION_RECEIVED
3201 "sa=" MACSTR " go_dev_addr=" MACSTR
3202 " unknown-network",
3203 MAC2STR(sa), MAC2STR(go_dev_addr));
b22128ef
JM		 3204 }
3205 return;
3206 }
3207
cd1e2309 3208 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
92c4465b
JM		 3209 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3210 "sa=" MACSTR " persistent=%d freq=%d",
3211 MAC2STR(sa), s->id, op_freq);
cd1e2309 3212 } else {
92c4465b
JM		 3213 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3214 "sa=" MACSTR " persistent=%d",
3215 MAC2STR(sa), s->id);
cd1e2309 3216 }
b22128ef
JM		 3217}
3218
3219
dbca75f8
JM		 3220static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3221 struct wpa_ssid *ssid,
f2c56602 3222 const u8 *peer, int inv)
dbca75f8
JM		 3223{
3224 size_t i;
3225
3226 if (ssid == NULL)
3227 return;
3228
3229 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3230 if (os_memcmp(ssid->p2p_client_list + i * ETH_ALEN, peer,
3231 ETH_ALEN) == 0)
3232 break;
3233 }
8931a36c 3234 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
dbca75f8
JM		 3235 if (ssid->mode != WPAS_MODE_P2P_GO &&
3236 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3237 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3238 "due to invitation result", ssid->id);
3239 wpas_notify_network_removed(wpa_s, ssid);
3240 wpa_config_remove_network(wpa_s->conf, ssid->id);
3241 return;
3242 }
3243 return; /* Peer not found in client list */
3244 }
3245
3246 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
f2c56602
JM		 3247 "group %d client list%s",
3248 MAC2STR(peer), ssid->id,
3249 inv ? " due to invitation result" : "");
dbca75f8
JM		 3250 os_memmove(ssid->p2p_client_list + i * ETH_ALEN,
3251 ssid->p2p_client_list + (i + 1) * ETH_ALEN,
3252 (ssid->num_p2p_clients - i - 1) * ETH_ALEN);
3253 ssid->num_p2p_clients--;
dbca75f8
JM		 3254 if (wpa_s->parent->conf->update_config &&
3255 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
3256 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
dbca75f8
JM		 3257}
3258
3259
3260static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3261 const u8 *peer)
3262{
3263 struct wpa_ssid *ssid;
3264
3265 wpa_s = wpa_s->global->p2p_invite_group;
3266 if (wpa_s == NULL)
3267 return; /* No known invitation group */
3268 ssid = wpa_s->current_ssid;
3269 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3270 !ssid->p2p_persistent_group)
3271 return; /* Not operating as a GO in persistent group */
3272 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
3273 ssid->ssid, ssid->ssid_len);
f2c56602 3274 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8
JM		 3275}
3276
3277
54733624 3278static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
dbca75f8 3279 const struct p2p_channels *channels,
41d5ce9e
RR		 3280 const u8 *peer, int neg_freq,
3281 int peer_oper_freq)
b22128ef
JM		 3282{
3283 struct wpa_supplicant *wpa_s = ctx;
3284 struct wpa_ssid *ssid;
41d5ce9e 3285 int freq;
b22128ef
JM		 3286
3287 if (bssid) {
92c4465b
JM		 3288 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3289 "status=%d " MACSTR,
3290 status, MAC2STR(bssid));
b22128ef 3291 } else {
92c4465b
JM		 3292 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3293 "status=%d ", status);
b22128ef 3294 }
5ccdf84f 3295 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
b22128ef 3296
dbca75f8
JM		 3297 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3298 status, MAC2STR(peer));
3299 if (wpa_s->pending_invite_ssid_id == -1) {
3300 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3301 wpas_remove_persistent_client(wpa_s, peer);
706887fc 3302 return; /* Invitation to active group */
dbca75f8 3303 }
706887fc 3304
77e4e853
JM		 3305 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3306 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3307 "invitation exchange to indicate readiness for "
3308 "re-invocation");
3309 }
3310
b22128ef 3311 if (status != P2P_SC_SUCCESS) {
dbca75f8
JM		 3312 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3313 ssid = wpa_config_get_network(
3314 wpa_s->conf, wpa_s->pending_invite_ssid_id);
f2c56602 3315 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8 3316 }
b22128ef
JM		 3317 wpas_p2p_remove_pending_group_interface(wpa_s);
3318 return;
3319 }
3320
3321 ssid = wpa_config_get_network(wpa_s->conf,
3322 wpa_s->pending_invite_ssid_id);
3323 if (ssid == NULL) {
3324 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3325 "data matching with invitation");
3326 return;
3327 }
3328
13ece96f
JM		 3329 /*
3330 * The peer could have missed our ctrl::ack frame for Invitation
3331 * Response and continue retransmitting the frame. To reduce the
3332 * likelihood of the peer not getting successful TX status for the
3333 * Invitation Response frame, wait a short time here before starting
3334 * the persistent group so that we will remain on the current channel to
3335 * acknowledge any possible retransmission from the peer.
3336 */
3337 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3338 "starting persistent group");
3339 os_sleep(0, 50000);
3340
41d5ce9e
RR		 3341 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3342 freq_included(channels, neg_freq))
3343 freq = neg_freq;
3344 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3345 freq_included(channels, peer_oper_freq))
3346 freq = peer_oper_freq;
3347 else
3348 freq = 0;
3349
3350 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3351 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
b22128ef 3352 wpas_p2p_group_add_persistent(wpa_s, ssid,
4d32c0c4 3353 ssid->mode == WPAS_MODE_P2P_GO,
062a7c0d 3354 wpa_s->p2p_persistent_go_freq,
41d5ce9e 3355 freq,
20ea1ca4
EP		 3356 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3357 channels,
bbc6c729
JM		 3358 ssid->mode == WPAS_MODE_P2P_GO ?
3359 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3360 0);
b22128ef
JM		 3361}
3362
3363
6f3bc72b
JM		 3364static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3365 unsigned int freq)
3366{
253f2e37
AH		 3367 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3368 return 1;
af8a827b 3369 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
6f3bc72b
JM		 3370}
3371
3372
3373static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3374{
3375 reg->channel[reg->channels] = chan;
3376 reg->channels++;
3377}
3378
3379
ac8d1011 3380static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3381 struct p2p_channels *chan,
3382 struct p2p_channels *cli_chan)
ac8d1011
JM		 3383{
3384 int i, cla = 0;
3385
51e9f228
JM		 3386 os_memset(cli_chan, 0, sizeof(*cli_chan));
3387
ac8d1011
JM		 3388 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3389 "band");
3390
3391 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3392 chan->reg_class[cla].reg_class = 81;
6f3bc72b
JM		 3393 chan->reg_class[cla].channels = 0;
3394 for (i = 0; i < 11; i++) {
3395 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3396 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3397 }
3398 if (chan->reg_class[cla].channels)
3399 cla++;
ac8d1011
JM		 3400
3401 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3402 "band");
3403
3404 /* Operating class 115 - 5 GHz, channels 36-48 */
3405 chan->reg_class[cla].reg_class = 115;
6f3bc72b
JM		 3406 chan->reg_class[cla].channels = 0;
3407 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3408 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3409 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3410 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3411 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3412 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3413 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3414 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3415 if (chan->reg_class[cla].channels)
3416 cla++;
ac8d1011
JM		 3417
3418 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3419 "band");
3420
3421 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3422 chan->reg_class[cla].reg_class = 124;
6f3bc72b
JM		 3423 chan->reg_class[cla].channels = 0;
3424 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3425 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3426 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3427 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3428 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3429 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3430 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3431 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3432 if (chan->reg_class[cla].channels)
3433 cla++;
ac8d1011
JM		 3434
3435 chan->reg_classes = cla;
3436 return 0;
3437}
3438
3439
3440static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3441 u16 num_modes,
3442 enum hostapd_hw_mode mode)
3443{
3444 u16 i;
3445
3446 for (i = 0; i < num_modes; i++) {
3447 if (modes[i].mode == mode)
3448 return &modes[i];
3449 }
3450
3451 return NULL;
3452}
3453
3454
51e9f228
JM		 3455enum chan_allowed {
3456 NOT_ALLOWED, PASSIVE_ONLY, ALLOWED
3457};
3458
6f3bc72b
JM		 3459static int has_channel(struct wpa_global *global,
3460 struct hostapd_hw_modes *mode, u8 chan, int *flags)
ac8d1011
JM		 3461{
3462 int i;
6f3bc72b
JM		 3463 unsigned int freq;
3464
3465 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3466 chan * 5;
3467 if (wpas_p2p_disallowed_freq(global, freq))
51e9f228 3468 return NOT_ALLOWED;
ac8d1011
JM		 3469
3470 for (i = 0; i < mode->num_channels; i++) {
3471 if (mode->channels[i].chan == chan) {
51222429
JM		 3472 if (flags)
3473 *flags = mode->channels[i].flag;
51e9f228
JM		 3474 if (mode->channels[i].flag &
3475 (HOSTAPD_CHAN_DISABLED |
3476 HOSTAPD_CHAN_RADAR))
3477 return NOT_ALLOWED;
3478 if (mode->channels[i].flag &
3479 (HOSTAPD_CHAN_PASSIVE_SCAN |
3480 HOSTAPD_CHAN_NO_IBSS))
3481 return PASSIVE_ONLY;
3482 return ALLOWED;
ac8d1011
JM		 3483 }
3484 }
3485
51e9f228 3486 return NOT_ALLOWED;
ac8d1011
JM		 3487}
3488
3489
3490struct p2p_oper_class_map {
3491 enum hostapd_hw_mode mode;
3492 u8 op_class;
3493 u8 min_chan;
3494 u8 max_chan;
3495 u8 inc;
1595eb93 3496 enum { BW20, BW40PLUS, BW40MINUS, BW80, BW2160 } bw;
ac8d1011
JM		 3497};
3498
931228aa
RM		 3499static struct p2p_oper_class_map op_class[] = {
3500 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
931228aa
RM		 3501#if 0 /* Do not enable HT40 on 2 GHz for now */
3502 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3503 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3504#endif
3505 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3506 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3507 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3508 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3509 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3510 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
ca9bc5b5
EP		 3511
3512 /*
3513 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3514 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3515 * 80 MHz, but currently use the following definition for simplicity
3516 * (these center frequencies are not actual channels, which makes
3517 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3518 * removing invalid channels.
3519 */
3520 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
1595eb93 3521 { HOSTAPD_MODE_IEEE80211AD, 180, 1, 4, 1, BW2160 },
931228aa
RM		 3522 { -1, 0, 0, 0, 0, BW20 }
3523};
3524
3525
ca9bc5b5
EP		 3526static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3527 struct hostapd_hw_modes *mode,
3528 u8 channel)
3529{
3530 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3531 unsigned int i;
3532
3533 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3534 return 0;
3535
3536 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3537 /*
3538 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3539 * so the center channel is 6 channels away from the start/end.
3540 */
3541 if (channel >= center_channels[i] - 6 &&
3542 channel <= center_channels[i] + 6)
3543 return center_channels[i];
3544
3545 return 0;
3546}
3547
3548
3549static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3550 struct hostapd_hw_modes *mode,
3551 u8 channel, u8 bw)
3552{
3553 u8 center_chan;
3554 int i, flags;
3555 enum chan_allowed res, ret = ALLOWED;
3556
3557 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3558 if (!center_chan)
3559 return NOT_ALLOWED;
3560 if (center_chan >= 58 && center_chan <= 138)
3561 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3562
3563 /* check all the channels are available */
3564 for (i = 0; i < 4; i++) {
3565 int adj_chan = center_chan - 6 + i * 4;
3566
3567 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3568 if (res == NOT_ALLOWED)
3569 return NOT_ALLOWED;
3570 if (res == PASSIVE_ONLY)
3571 ret = PASSIVE_ONLY;
3572
3573 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3574 return NOT_ALLOWED;
3575 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3576 return NOT_ALLOWED;
3577 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3578 return NOT_ALLOWED;
3579 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3580 return NOT_ALLOWED;
3581 }
3582
3583 return ret;
3584}
3585
3586
51e9f228
JM		 3587static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3588 struct hostapd_hw_modes *mode,
3589 u8 channel, u8 bw)
931228aa 3590{
cbf21c7c 3591 int flag = 0;
51e9f228
JM		 3592 enum chan_allowed res, res2;
3593
3594 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3595 if (bw == BW40MINUS) {
3596 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3597 return NOT_ALLOWED;
3598 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3599 } else if (bw == BW40PLUS) {
3600 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3601 return NOT_ALLOWED;
3602 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
ca9bc5b5
EP		 3603 } else if (bw == BW80) {
3604 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
51e9f228
JM		 3605 }
3606
3607 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3608 return NOT_ALLOWED;
3609 if (res == PASSIVE_ONLY || res2 == PASSIVE_ONLY)
3610 return PASSIVE_ONLY;
3611 return res;
931228aa
RM		 3612}
3613
3614
b22128ef 3615static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3616 struct p2p_channels *chan,
3617 struct p2p_channels *cli_chan)
b22128ef 3618{
6bf731e8 3619 struct hostapd_hw_modes *mode;
51e9f228 3620 int cla, op, cli_cla;
b22128ef 3621
6bf731e8 3622 if (wpa_s->hw.modes == NULL) {
b22128ef
JM		 3623 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3624 "of all supported channels; assume dualband "
3625 "support");
51e9f228 3626 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
b22128ef
JM		 3627 }
3628
51e9f228 3629 cla = cli_cla = 0;
b22128ef 3630
ac8d1011
JM		 3631 for (op = 0; op_class[op].op_class; op++) {
3632 struct p2p_oper_class_map *o = &op_class[op];
3633 u8 ch;
51e9f228 3634 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
b22128ef 3635
6bf731e8 3636 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
ac8d1011
JM		 3637 if (mode == NULL)
3638 continue;
3639 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
51e9f228
JM		 3640 enum chan_allowed res;
3641 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3642 if (res == ALLOWED) {
3643 if (reg == NULL) {
3644 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3645 o->op_class);
3646 reg = &chan->reg_class[cla];
3647 cla++;
3648 reg->reg_class = o->op_class;
3649 }
3650 reg->channel[reg->channels] = ch;
3651 reg->channels++;
3652 } else if (res == PASSIVE_ONLY &&
3653 wpa_s->conf->p2p_add_cli_chan) {
3654 if (cli_reg == NULL) {
3655 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3656 o->op_class);
3657 cli_reg = &cli_chan->reg_class[cli_cla];
3658 cli_cla++;
3659 cli_reg->reg_class = o->op_class;
3660 }
3661 cli_reg->channel[cli_reg->channels] = ch;
3662 cli_reg->channels++;
ac8d1011 3663 }
ac8d1011
JM		 3664 }
3665 if (reg) {
3666 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3667 reg->channel, reg->channels);
3668 }
51e9f228
JM		 3669 if (cli_reg) {
3670 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3671 cli_reg->channel, cli_reg->channels);
3672 }
b22128ef
JM		 3673 }
3674
ac8d1011 3675 chan->reg_classes = cla;
51e9f228 3676 cli_chan->reg_classes = cli_cla;
b22128ef 3677
b22128ef
JM		 3678 return 0;
3679}
3680
3681
7aeac985
RM		 3682int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3683 struct hostapd_hw_modes *mode, u8 channel)
3684{
51e9f228
JM		 3685 int op;
3686 enum chan_allowed ret;
7aeac985
RM		 3687
3688 for (op = 0; op_class[op].op_class; op++) {
3689 struct p2p_oper_class_map *o = &op_class[op];
3690 u8 ch;
3691
3692 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3693 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3694 o->bw == BW20 || ch != channel)
3695 continue;
3696 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
51e9f228 3697 if (ret == ALLOWED)
7aeac985 3698 return (o->bw == BW40MINUS) ? -1 : 1;
7aeac985
RM		 3699 }
3700 }
3701 return 0;
3702}
3703
3704
ca9bc5b5
EP		 3705int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3706 struct hostapd_hw_modes *mode, u8 channel)
3707{
3708 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3709 return 0;
3710
3711 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3712}
3713
3714
b22128ef
JM		 3715static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3716 size_t buf_len)
3717{
3718 struct wpa_supplicant *wpa_s = ctx;
3719
3720 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3721 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3722 break;
3723 }
3724 if (wpa_s == NULL)
3725 return -1;
3726
3727 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3728}
3729
3730
6f04642f
TB		 3731struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3732 const u8 *ssid, size_t ssid_len)
b1aebbc4 3733{
6f04642f
TB		 3734 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3735 struct wpa_ssid *s = wpa_s->current_ssid;
3736 if (s == NULL)
3737 continue;
3738 if (s->mode != WPAS_MODE_P2P_GO &&
3739 s->mode != WPAS_MODE_AP &&
3740 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3741 continue;
3742 if (s->ssid_len != ssid_len ||
af65bc36 3743 os_memcmp(ssid, s->ssid, ssid_len) != 0)
6f04642f
TB		 3744 continue;
3745 return wpa_s;
3746 }
3747
3748 return NULL;
3749
3750}
3751
b1aebbc4 3752
6f04642f
TB		 3753struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3754 const u8 *peer_dev_addr)
3755{
b1aebbc4
JM		 3756 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3757 struct wpa_ssid *ssid = wpa_s->current_ssid;
3758 if (ssid == NULL)
3759 continue;
3760 if (ssid->mode != WPAS_MODE_INFRA)
3761 continue;
d9a0f666
PN		 3762 if (wpa_s->wpa_state != WPA_COMPLETED &&
3763 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
b1aebbc4 3764 continue;
6f04642f
TB		 3765 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3766 return wpa_s;
b1aebbc4
JM		 3767 }
3768
6f04642f
TB		 3769 return NULL;
3770}
3771
3772
3773static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3774{
3775 struct wpa_supplicant *wpa_s = ctx;
3776
3777 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
b1aebbc4
JM		 3778}
3779
3780
a2d63657
RR		 3781static int wpas_is_concurrent_session_active(void *ctx)
3782{
3783 struct wpa_supplicant *wpa_s = ctx;
3784 struct wpa_supplicant *ifs;
3785
3786 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3787 if (ifs == wpa_s)
3788 continue;
3789 if (ifs->wpa_state > WPA_ASSOCIATED)
3790 return 1;
3791 }
3792 return 0;
3793}
3794
3795
ed496f13
JM		 3796static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3797{
3798 struct wpa_supplicant *wpa_s = ctx;
92c4465b 3799 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
ed496f13
JM		 3800}
3801
3802
f1a61311
JM		 3803int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s,
3804 const char *conf_p2p_dev)
c68f6200
AS		 3805{
3806 struct wpa_interface iface;
3807 struct wpa_supplicant *p2pdev_wpa_s;
3808 char ifname[100];
3809 char force_name[100];
3810 int ret;
3811
2e5ba4b6
AS		 3812 os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3813 wpa_s->ifname);
c68f6200
AS		 3814 force_name[0] = '\0';
3815 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3816 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3817 force_name, wpa_s->pending_interface_addr, NULL);
3818 if (ret < 0) {
3819 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3820 return ret;
3821 }
3822 os_strlcpy(wpa_s->pending_interface_name, ifname,
3823 sizeof(wpa_s->pending_interface_name));
3824
3825 os_memset(&iface, 0, sizeof(iface));
3826 iface.p2p_mgmt = 1;
3827 iface.ifname = wpa_s->pending_interface_name;
3828 iface.driver = wpa_s->driver->name;
c68f6200 3829 iface.driver_param = wpa_s->conf->driver_param;
c16a7590
IP		 3830
3831 /*
3832 * If a P2P Device configuration file was given, use it as the interface
3833 * configuration file (instead of using parent's configuration file.
3834 */
f1a61311
JM		 3835 if (conf_p2p_dev) {
3836 iface.confname = conf_p2p_dev;
c16a7590
IP		 3837 iface.ctrl_interface = NULL;
3838 } else {
3839 iface.confname = wpa_s->confname;
3840 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3841 }
3842 iface.conf_p2p_dev = NULL;
3843
c68f6200
AS		 3844 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
3845 if (!p2pdev_wpa_s) {
3846 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3847 return -1;
3848 }
78f79fe5 3849 p2pdev_wpa_s->parent = wpa_s;
c68f6200
AS		 3850
3851 wpa_s->pending_interface_name[0] = '\0';
3852 return 0;
3853}
3854
3855
c64e3a08
JM		 3856static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3857 const u8 *noa, size_t noa_len)
3858{
3859 struct wpa_supplicant *wpa_s, *intf = ctx;
3860 char hex[100];
3861
3862 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3863 if (wpa_s->waiting_presence_resp)
3864 break;
3865 }
3866 if (!wpa_s) {
3867 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3868 return;
3869 }
3870 wpa_s->waiting_presence_resp = 0;
3871
3872 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3873 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3874 " status=%u noa=%s", MAC2STR(src), status, hex);
3875}
3876
3877
0f1034e3
SD		 3878static int _wpas_p2p_in_progress(void *ctx)
3879{
3880 struct wpa_supplicant *wpa_s = ctx;
3881 return wpas_p2p_in_progress(wpa_s);
3882}
3883
3884
b22128ef
JM		 3885/**
3886 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
3887 * @global: Pointer to global data from wpa_supplicant_init()
3888 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3889 * Returns: 0 on success, -1 on failure
3890 */
3891int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
3892{
3893 struct p2p_config p2p;
f95cac27 3894 int i;
b22128ef 3895
f2b3f4de
SS		 3896 if (wpa_s->conf->p2p_disabled)
3897 return 0;
3898
b22128ef
JM		 3899 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3900 return 0;
3901
b22128ef
JM		 3902 if (global->p2p)
3903 return 0;
3904
3905 os_memset(&p2p, 0, sizeof(p2p));
b22128ef 3906 p2p.cb_ctx = wpa_s;
ed496f13 3907 p2p.debug_print = wpas_p2p_debug_print;
b22128ef
JM		 3908 p2p.p2p_scan = wpas_p2p_scan;
3909 p2p.send_action = wpas_send_action;
3910 p2p.send_action_done = wpas_send_action_done;
3911 p2p.go_neg_completed = wpas_go_neg_completed;
3912 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
3913 p2p.dev_found = wpas_dev_found;
56eeb8f2 3914 p2p.dev_lost = wpas_dev_lost;
710ae9ac 3915 p2p.find_stopped = wpas_find_stopped;
b22128ef
JM		 3916 p2p.start_listen = wpas_start_listen;
3917 p2p.stop_listen = wpas_stop_listen;
3918 p2p.send_probe_resp = wpas_send_probe_resp;
3919 p2p.sd_request = wpas_sd_request;
3920 p2p.sd_response = wpas_sd_response;
3921 p2p.prov_disc_req = wpas_prov_disc_req;
3922 p2p.prov_disc_resp = wpas_prov_disc_resp;
dd8a7e05 3923 p2p.prov_disc_fail = wpas_prov_disc_fail;
b22128ef
JM		 3924 p2p.invitation_process = wpas_invitation_process;
3925 p2p.invitation_received = wpas_invitation_received;
3926 p2p.invitation_result = wpas_invitation_result;
3927 p2p.get_noa = wpas_get_noa;
b1aebbc4 3928 p2p.go_connected = wpas_go_connected;
c64e3a08 3929 p2p.presence_resp = wpas_presence_resp;
a2d63657 3930 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
0f1034e3 3931 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
b22128ef
JM		 3932
3933 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
d7e70476 3934 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
b22128ef 3935 p2p.dev_name = wpa_s->conf->device_name;
b6e01800
JM		 3936 p2p.manufacturer = wpa_s->conf->manufacturer;
3937 p2p.model_name = wpa_s->conf->model_name;
3938 p2p.model_number = wpa_s->conf->model_number;
3939 p2p.serial_number = wpa_s->conf->serial_number;
3940 if (wpa_s->wps) {
3941 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
3942 p2p.config_methods = wpa_s->wps->config_methods;
3943 }
b22128ef 3944
1595eb93
AM		 3945 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
3946 wpa_printf(MSG_ERROR,
3947 "P2P: Failed to configure supported channel list");
3948 return -1;
3949 }
3950
b22128ef
JM		 3951 if (wpa_s->conf->p2p_listen_reg_class &&
3952 wpa_s->conf->p2p_listen_channel) {
3953 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
3954 p2p.channel = wpa_s->conf->p2p_listen_channel;
e3bd6e9d 3955 p2p.channel_forced = 1;
b22128ef 3956 } else {
b22128ef
JM		 3957 /*
3958 * Pick one of the social channels randomly as the listen
3959 * channel.
3960 */
1595eb93
AM		 3961 if (p2p_config_get_random_social(&p2p, &p2p.reg_class,
3962 &p2p.channel) != 0) {
3963 wpa_printf(MSG_ERROR,
3964 "P2P: Failed to select random social channel as listen channel");
df2508d7 3965 return -1;
1595eb93 3966 }
e3bd6e9d 3967 p2p.channel_forced = 0;
b22128ef 3968 }
1595eb93
AM		 3969 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d:%d",
3970 p2p.reg_class, p2p.channel);
b22128ef
JM		 3971
3972 if (wpa_s->conf->p2p_oper_reg_class &&
3973 wpa_s->conf->p2p_oper_channel) {
3974 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
3975 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 3976 p2p.cfg_op_channel = 1;
3977 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
3978 "%d:%d", p2p.op_reg_class, p2p.op_channel);
3979
b22128ef 3980 } else {
b22128ef 3981 /*
1595eb93
AM		 3982 * Use random operation channel from 2.4 GHz band social
3983 * channels (1, 6, 11) or band 60 GHz social channel (2) if no
3984 * other preference is indicated.
b22128ef 3985 */
1595eb93
AM		 3986 if (p2p_config_get_random_social(&p2p, &p2p.op_reg_class,
3987 &p2p.op_channel) != 0) {
3988 wpa_printf(MSG_ERROR,
3989 "P2P: Failed to select random social channel as operation channel");
df2508d7 3990 return -1;
1595eb93 3991 }
7cfc4ac3
AGS		 3992 p2p.cfg_op_channel = 0;
3993 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
3994 "%d:%d", p2p.op_reg_class, p2p.op_channel);
b22128ef 3995 }
010b5f9b
YW		 3996
3997 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
3998 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
3999 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
4000 }
4001
b22128ef
JM		 4002 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4003 os_memcpy(p2p.country, wpa_s->conf->country, 2);
4004 p2p.country[2] = 0x04;
4005 } else
aaca6505 4006 os_memcpy(p2p.country, "XX\x04", 3);
b22128ef 4007
2f646b6e
JB		 4008 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
4009 WPS_DEV_TYPE_LEN);
b22128ef 4010
2f646b6e
JB		 4011 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
4012 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
4013 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
b22128ef
JM		 4014
4015 p2p.concurrent_operations = !!(wpa_s->drv_flags &
4016 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
4017
de979d8f 4018 p2p.max_peers = 100;
b22128ef
JM		 4019
4020 if (wpa_s->conf->p2p_ssid_postfix) {
4021 p2p.ssid_postfix_len =
4022 os_strlen(wpa_s->conf->p2p_ssid_postfix);
4023 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
4024 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
4025 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
4026 p2p.ssid_postfix_len);
4027 }
4028
0f66abd2
SS		 4029 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
4030
96beff11
JM		 4031 p2p.max_listen = wpa_s->max_remain_on_chan;
4032
1b928f96
JM		 4033 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
4034 wpa_s->conf->p2p_passphrase_len <= 63)
4035 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
4036 else
4037 p2p.passphrase_len = 8;
4038
b22128ef
JM		 4039 global->p2p = p2p_init(&p2p);
4040 if (global->p2p == NULL)
4041 return -1;
ab28911d 4042 global->p2p_init_wpa_s = wpa_s;
b22128ef 4043
f95cac27
JMB		 4044 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4045 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4046 continue;
4047 p2p_add_wps_vendor_extension(
4048 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
4049 }
4050
556b30da
JM		 4051 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4052
b22128ef
JM		 4053 return 0;
4054}
4055
4056
4057/**
4058 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4059 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4060 *
4061 * This function deinitialize per-interface P2P data.
4062 */
4063void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4064{
4065 if (wpa_s->driver && wpa_s->drv_priv)
4066 wpa_drv_probe_req_report(wpa_s, 0);
ec437d9e
JJ		 4067
4068 if (wpa_s->go_params) {
4069 /* Clear any stored provisioning info */
4070 p2p_clear_provisioning_info(
4071 wpa_s->global->p2p,
10531d21 4072 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 4073 }
4074
b22128ef
JM		 4075 os_free(wpa_s->go_params);
4076 wpa_s->go_params = NULL;
fb2ac53d 4077 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
b22128ef 4078 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 4079 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 4080 wpa_s->p2p_long_listen = 0;
4081 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3071e181 4082 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
b22128ef 4083 wpas_p2p_remove_pending_group_interface(wpa_s);
8567866d 4084 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
e1d1c8e2 4085 wpas_p2p_listen_work_done(wpa_s);
e05e1308
JM		 4086 if (wpa_s->p2p_send_action_work) {
4087 os_free(wpa_s->p2p_send_action_work->ctx);
4088 radio_work_done(wpa_s->p2p_send_action_work);
4089 wpa_s->p2p_send_action_work = NULL;
4090 }
4091 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
b22128ef 4092
db6ae69e
JM		 4093 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4094 wpa_s->p2p_oob_dev_pw = NULL;
4095
b22128ef
JM		 4096 /* TODO: remove group interface from the driver if this wpa_s instance
4097 * is on top of a P2P group interface */
4098}
4099
4100
4101/**
4102 * wpas_p2p_deinit_global - Deinitialize global P2P module
4103 * @global: Pointer to global data from wpa_supplicant_init()
4104 *
4105 * This function deinitializes the global (per device) P2P module.
4106 */
bd10d938 4107static void wpas_p2p_deinit_global(struct wpa_global *global)
b22128ef
JM		 4108{
4109 struct wpa_supplicant *wpa_s, *tmp;
b22128ef 4110
bf428a73 4111 wpa_s = global->ifaces;
ee285df4
EA		 4112
4113 wpas_p2p_service_flush(global->p2p_init_wpa_s);
bf428a73 4114
b22128ef 4115 /* Remove remaining P2P group interfaces */
b22128ef
JM		 4116 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4117 wpa_s = wpa_s->next;
4118 while (wpa_s) {
b22128ef
JM		 4119 tmp = global->ifaces;
4120 while (tmp &&
4121 (tmp == wpa_s ||
4122 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4123 tmp = tmp->next;
4124 }
4125 if (tmp == NULL)
4126 break;
103b8f4d
NS		 4127 /* Disconnect from the P2P group and deinit the interface */
4128 wpas_p2p_disconnect(tmp);
b22128ef
JM		 4129 }
4130
743ef799
JM		 4131 /*
4132 * Deinit GO data on any possibly remaining interface (if main
4133 * interface is used as GO).
4134 */
4135 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4136 if (wpa_s->ap_iface)
4137 wpas_p2p_group_deinit(wpa_s);
4138 }
4139
b22128ef
JM		 4140 p2p_deinit(global->p2p);
4141 global->p2p = NULL;
ab28911d 4142 global->p2p_init_wpa_s = NULL;
b22128ef
JM		 4143}
4144
4145
4146static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4147{
bb4028f1
AS		 4148 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4149 wpa_s->conf->p2p_no_group_iface)
d76cd41a 4150 return 0; /* separate interface disabled per configuration */
971e357f
JM		 4151 if (wpa_s->drv_flags &
4152 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4153 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
b22128ef
JM		 4154 return 1; /* P2P group requires a new interface in every case
4155 */
4156 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4157 return 0; /* driver does not support concurrent operations */
4158 if (wpa_s->global->ifaces->next)
4159 return 1; /* more that one interface already in use */
4160 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4161 return 1; /* this interface is already in use */
4162 return 0;
4163}
4164
4165
4166static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4167 const u8 *peer_addr,
4168 enum p2p_wps_method wps_method,
4169 int go_intent, const u8 *own_interface_addr,
23c84252 4170 unsigned int force_freq, int persistent_group,
04a3e69d 4171 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 4172{
acc247b2
JM		 4173 if (persistent_group && wpa_s->conf->persistent_reconnect)
4174 persistent_group = 2;
4175
4f219667
JM		 4176 /*
4177 * Increase GO config timeout if HT40 is used since it takes some time
4178 * to scan channels for coex purposes before the BSS can be started.
4179 */
4180 p2p_set_config_timeout(wpa_s->global->p2p,
4181 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4182
b22128ef
JM		 4183 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4184 go_intent, own_interface_addr, force_freq,
23c84252 4185 persistent_group, ssid ? ssid->ssid : NULL,
3bc462cb 4186 ssid ? ssid->ssid_len : 0,
db6ae69e
JM		 4187 wpa_s->p2p_pd_before_go_neg, pref_freq,
4188 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4189 0);
b22128ef
JM		 4190}
4191
4192
4193static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4194 const u8 *peer_addr,
4195 enum p2p_wps_method wps_method,
4196 int go_intent, const u8 *own_interface_addr,
23c84252 4197 unsigned int force_freq, int persistent_group,
04a3e69d 4198 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 4199{
acc247b2
JM		 4200 if (persistent_group && wpa_s->conf->persistent_reconnect)
4201 persistent_group = 2;
4202
b22128ef
JM		 4203 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4204 go_intent, own_interface_addr, force_freq,
23c84252 4205 persistent_group, ssid ? ssid->ssid : NULL,
db6ae69e
JM		 4206 ssid ? ssid->ssid_len : 0, pref_freq,
4207 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4208 0);
b22128ef
JM		 4209}
4210
4211
9b1ab931
JM		 4212static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4213{
4214 wpa_s->p2p_join_scan_count++;
4215 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4216 wpa_s->p2p_join_scan_count);
4217 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4218 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4219 " for join operationg - stop join attempt",
4220 MAC2STR(wpa_s->pending_join_iface_addr));
4221 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
0918c4bf
JM		 4222 if (wpa_s->p2p_auto_pd) {
4223 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 4224 wpa_msg_global(wpa_s, MSG_INFO,
4225 P2P_EVENT_PROV_DISC_FAILURE
4226 " p2p_dev_addr=" MACSTR " status=N/A",
4227 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 4228 return;
4229 }
92c4465b
JM		 4230 wpa_msg_global(wpa_s->parent, MSG_INFO,
4231 P2P_EVENT_GROUP_FORMATION_FAILURE);
9b1ab931
JM		 4232 }
4233}
4234
4235
4b156206
JM		 4236static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4237{
a0c90bb0
IP		 4238 int res;
4239 unsigned int num, i;
4240 struct wpa_used_freq_data *freqs;
4b156206 4241
0d08efa4
IP		 4242 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4243 /* Multiple channels are supported and not all are in use */
4b156206 4244 return 0;
0d08efa4 4245 }
4b156206 4246
a0c90bb0
IP		 4247 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4248 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 4249 if (!freqs)
4250 return 1;
86ae2e8a 4251
0d08efa4
IP		 4252 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4253 wpa_s->num_multichan_concurrent);
4b156206 4254
0d08efa4 4255 for (i = 0; i < num; i++) {
a0c90bb0 4256 if (freqs[i].freq == freq) {
0d08efa4
IP		 4257 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4258 freq);
4259 res = 0;
4260 goto exit_free;
4261 }
4b156206
JM		 4262 }
4263
a0c90bb0 4264 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
0d08efa4
IP		 4265 res = 1;
4266
4267exit_free:
4268 os_free(freqs);
4269 return res;
4b156206
JM		 4270}
4271
4272
b31be3a0
JM		 4273static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4274 const u8 *peer_dev_addr)
4275{
4276 struct wpa_bss *bss;
4277 int updated;
4278
4279 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4280 if (bss == NULL)
aa9bb764 4281 return -1;
b31be3a0
JM		 4282 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4283 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4284 "last scan");
4285 return 0;
4286 }
4287
acb69cec
JB		 4288 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4289 &bss->last_update);
b31be3a0
JM		 4290 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4291 "%ld.%06ld (%supdated in last scan)",
4292 bss->last_update.sec, bss->last_update.usec,
4293 updated ? "": "not ");
4294
4295 return updated;
4296}
4297
4298
ef922c4a
JM		 4299static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4300 struct wpa_scan_results *scan_res)
b22128ef 4301{
c48414af 4302 struct wpa_bss *bss = NULL;
f8d0131a 4303 int freq;
54960629 4304 u8 iface_addr[ETH_ALEN];
b22128ef 4305
ef922c4a 4306 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 4307
ef922c4a
JM		 4308 if (wpa_s->global->p2p_disabled)
4309 return;
b22128ef 4310
b31be3a0
JM		 4311 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4312 scan_res ? (int) scan_res->num : -1,
4313 wpa_s->p2p_auto_join ? "auto_" : "");
ef922c4a
JM		 4314
4315 if (scan_res)
4316 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 4317
0918c4bf
JM		 4318 if (wpa_s->p2p_auto_pd) {
4319 int join = wpas_p2p_peer_go(wpa_s,
4320 wpa_s->pending_join_dev_addr);
84286a22
SDU		 4321 if (join == 0 &&
4322 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4323 wpa_s->auto_pd_scan_retry++;
702621e6
JM		 4324 bss = wpa_bss_get_bssid_latest(
4325 wpa_s, wpa_s->pending_join_dev_addr);
84286a22
SDU		 4326 if (bss) {
4327 freq = bss->freq;
4328 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4329 "the peer " MACSTR " at %d MHz",
4330 wpa_s->auto_pd_scan_retry,
4331 MAC2STR(wpa_s->
4332 pending_join_dev_addr),
4333 freq);
c48414af 4334 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
84286a22
SDU		 4335 return;
4336 }
4337 }
4338
aa9bb764
JM		 4339 if (join < 0)
4340 join = 0;
84286a22 4341
0918c4bf
JM		 4342 wpa_s->p2p_auto_pd = 0;
4343 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4344 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4345 MAC2STR(wpa_s->pending_join_dev_addr), join);
4346 if (p2p_prov_disc_req(wpa_s->global->p2p,
4347 wpa_s->pending_join_dev_addr,
4348 wpa_s->pending_pd_config_methods, join,
67527166 4349 0, wpa_s->user_initiated_pd) < 0) {
0918c4bf 4350 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 4351 wpa_msg_global(wpa_s, MSG_INFO,
4352 P2P_EVENT_PROV_DISC_FAILURE
4353 " p2p_dev_addr=" MACSTR " status=N/A",
4354 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 4355 }
4356 return;
4357 }
4358
b31be3a0 4359 if (wpa_s->p2p_auto_join) {
aa9bb764
JM		 4360 int join = wpas_p2p_peer_go(wpa_s,
4361 wpa_s->pending_join_dev_addr);
4362 if (join < 0) {
b31be3a0
JM		 4363 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4364 "running a GO -> use GO Negotiation");
4365 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4366 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4367 wpa_s->p2p_persistent_group, 0, 0, 0,
4368 wpa_s->p2p_go_intent,
23c84252 4369 wpa_s->p2p_connect_freq,
3bc462cb 4370 wpa_s->p2p_persistent_id,
e2308e4b 4371 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 4372 wpa_s->p2p_go_ht40,
4373 wpa_s->p2p_go_vht);
b31be3a0
JM		 4374 return;
4375 }
4376
aa9bb764
JM		 4377 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4378 "try to join the group", join ? "" :
4379 " in older scan");
4380 if (!join)
4381 wpa_s->p2p_fallback_to_go_neg = 1;
b31be3a0
JM		 4382 }
4383
f8d0131a
JM		 4384 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4385 wpa_s->pending_join_iface_addr);
54960629
AL		 4386 if (freq < 0 &&
4387 p2p_get_interface_addr(wpa_s->global->p2p,
4388 wpa_s->pending_join_dev_addr,
4389 iface_addr) == 0 &&
4e536751
CM		 4390 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0
4391 && !wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr)) {
54960629
AL		 4392 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4393 "address for join from " MACSTR " to " MACSTR
4394 " based on newly discovered P2P peer entry",
4395 MAC2STR(wpa_s->pending_join_iface_addr),
4396 MAC2STR(iface_addr));
4397 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4398 ETH_ALEN);
4399
4400 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4401 wpa_s->pending_join_iface_addr);
4402 }
f8d0131a
JM		 4403 if (freq >= 0) {
4404 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4405 "from P2P peer table: %d MHz", freq);
4406 }
c48414af
JM		 4407 if (wpa_s->p2p_join_ssid_len) {
4408 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4409 MACSTR " and SSID %s",
4410 MAC2STR(wpa_s->pending_join_iface_addr),
4411 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4412 wpa_s->p2p_join_ssid_len));
4413 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4414 wpa_s->p2p_join_ssid,
4415 wpa_s->p2p_join_ssid_len);
4416 }
4417 if (!bss) {
4418 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4419 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4420 bss = wpa_bss_get_bssid_latest(wpa_s,
4421 wpa_s->pending_join_iface_addr);
4422 }
b22128ef 4423 if (bss) {
f8d0131a
JM		 4424 freq = bss->freq;
4425 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
d2858883
JM		 4426 "from BSS table: %d MHz (SSID %s)", freq,
4427 wpa_ssid_txt(bss->ssid, bss->ssid_len));
f8d0131a
JM		 4428 }
4429 if (freq > 0) {
b22128ef
JM		 4430 u16 method;
4431
4b156206 4432 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
92c4465b
JM		 4433 wpa_msg_global(wpa_s->parent, MSG_INFO,
4434 P2P_EVENT_GROUP_FORMATION_FAILURE
4435 "reason=FREQ_CONFLICT");
4b156206
JM		 4436 return;
4437 }
4438
b22128ef
JM		 4439 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4440 "prior to joining an existing group (GO " MACSTR
4441 " freq=%u MHz)",
f8d0131a 4442 MAC2STR(wpa_s->pending_join_dev_addr), freq);
b22128ef
JM		 4443 wpa_s->pending_pd_before_join = 1;
4444
ef922c4a 4445 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 4446 case WPS_PIN_DISPLAY:
4447 method = WPS_CONFIG_KEYPAD;
4448 break;
4449 case WPS_PIN_KEYPAD:
4450 method = WPS_CONFIG_DISPLAY;
4451 break;
4452 case WPS_PBC:
4453 method = WPS_CONFIG_PUSHBUTTON;
4454 break;
4455 default:
4456 method = 0;
4457 break;
4458 }
4459
ec437d9e
JJ		 4460 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4461 wpa_s->pending_join_dev_addr) ==
4462 method)) {
4463 /*
4464 * We have already performed provision discovery for
4465 * joining the group. Proceed directly to join
4466 * operation without duplicated provision discovery. */
e3a0706b 4467 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
ec437d9e
JJ		 4468 "with " MACSTR " already done - proceed to "
4469 "join",
4470 MAC2STR(wpa_s->pending_join_dev_addr));
4471 wpa_s->pending_pd_before_join = 0;
4472 goto start;
4473 }
4474
ef922c4a 4475 if (p2p_prov_disc_req(wpa_s->global->p2p,
1ef2f7ff 4476 wpa_s->pending_join_dev_addr, method, 1,
67527166 4477 freq, wpa_s->user_initiated_pd) < 0) {
b22128ef
JM		 4478 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4479 "Discovery Request before joining an "
4480 "existing group");
4481 wpa_s->pending_pd_before_join = 0;
4482 goto start;
4483 }
ef922c4a 4484 return;
b22128ef
JM		 4485 }
4486
9b1ab931
JM		 4487 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4488 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4489 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4490 wpas_p2p_check_join_scan_limit(wpa_s);
4491 return;
b22128ef
JM		 4492
4493start:
4494 /* Start join operation immediately */
23318bea 4495 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
ef922c4a
JM		 4496}
4497
4498
c48414af
JM		 4499static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4500 const u8 *ssid, size_t ssid_len)
ef922c4a 4501{
ef922c4a
JM		 4502 int ret;
4503 struct wpa_driver_scan_params params;
4504 struct wpabuf *wps_ie, *ies;
206e1f42 4505 size_t ielen;
84286a22 4506 int freqs[2] = { 0, 0 };
ef922c4a
JM		 4507
4508 os_memset(&params, 0, sizeof(params));
4509
4510 /* P2P Wildcard SSID */
4511 params.num_ssids = 1;
c48414af
JM		 4512 if (ssid && ssid_len) {
4513 params.ssids[0].ssid = ssid;
4514 params.ssids[0].ssid_len = ssid_len;
4515 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4516 wpa_s->p2p_join_ssid_len = ssid_len;
4517 } else {
4518 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4519 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4520 wpa_s->p2p_join_ssid_len = 0;
4521 }
ef922c4a
JM		 4522
4523 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 4524 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4525 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4526 NULL);
ef922c4a
JM		 4527 if (wps_ie == NULL) {
4528 wpas_p2p_scan_res_join(wpa_s, NULL);
4529 return;
4530 }
4531
206e1f42
JM		 4532 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4533 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
ef922c4a
JM		 4534 if (ies == NULL) {
4535 wpabuf_free(wps_ie);
4536 wpas_p2p_scan_res_join(wpa_s, NULL);
4537 return;
4538 }
4539 wpabuf_put_buf(ies, wps_ie);
4540 wpabuf_free(wps_ie);
4541
6d92fa6e 4542 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
ef922c4a 4543
47185fc7 4544 params.p2p_probe = 1;
ef922c4a
JM		 4545 params.extra_ies = wpabuf_head(ies);
4546 params.extra_ies_len = wpabuf_len(ies);
37b4198a
JJ		 4547
4548 if (!freq) {
4549 int oper_freq;
4550 /*
4551 * If freq is not provided, check the operating freq of the GO
4552 * and use a single channel scan on if possible.
4553 */
4554 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4555 wpa_s->pending_join_iface_addr);
4556 if (oper_freq > 0)
4557 freq = oper_freq;
4558 }
84286a22
SDU		 4559 if (freq > 0) {
4560 freqs[0] = freq;
4561 params.freqs = freqs;
4562 }
ef922c4a
JM		 4563
4564 /*
4565 * Run a scan to update BSS table and start Provision Discovery once
4566 * the new scan results become available.
4567 */
17fbb751 4568 ret = wpa_drv_scan(wpa_s, &params);
4342326f 4569 if (!ret) {
acb69cec 4570 os_get_reltime(&wpa_s->scan_trigger_time);
205e6474 4571 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
a5f40eff 4572 wpa_s->own_scan_requested = 1;
4342326f 4573 }
ef922c4a
JM		 4574
4575 wpabuf_free(ies);
4576
4577 if (ret) {
4578 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4579 "try again later");
4580 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4581 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
9b1ab931 4582 wpas_p2p_check_join_scan_limit(wpa_s);
ef922c4a
JM		 4583 }
4584}
4585
4586
84286a22
SDU		 4587static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4588{
4589 struct wpa_supplicant *wpa_s = eloop_ctx;
c48414af 4590 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
84286a22
SDU		 4591}
4592
4593
ef922c4a 4594static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0 4595 const u8 *dev_addr, enum p2p_wps_method wps_method,
23318bea
JM		 4596 int auto_join, int op_freq,
4597 const u8 *ssid, size_t ssid_len)
ef922c4a
JM		 4598{
4599 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
23318bea
JM		 4600 MACSTR " dev " MACSTR " op_freq=%d)%s",
4601 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
b31be3a0 4602 auto_join ? " (auto_join)" : "");
c48414af
JM		 4603 if (ssid && ssid_len) {
4604 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4605 wpa_ssid_txt(ssid, ssid_len));
4606 }
ef922c4a 4607
0918c4bf 4608 wpa_s->p2p_auto_pd = 0;
b31be3a0 4609 wpa_s->p2p_auto_join = !!auto_join;
ef922c4a
JM		 4610 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4611 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4612 wpa_s->pending_join_wps_method = wps_method;
4613
4614 /* Make sure we are not running find during connection establishment */
4615 wpas_p2p_stop_find(wpa_s);
4616
9b1ab931 4617 wpa_s->p2p_join_scan_count = 0;
23318bea 4618 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
ef922c4a 4619 return 0;
b22128ef
JM		 4620}
4621
4622
23318bea
JM		 4623static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4624 const u8 *ssid, size_t ssid_len)
b22128ef
JM		 4625{
4626 struct wpa_supplicant *group;
4627 struct p2p_go_neg_results res;
8e64f258 4628 struct wpa_bss *bss;
b22128ef
JM		 4629
4630 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4631 if (group == NULL)
4632 return -1;
3c5126a4 4633 if (group != wpa_s) {
b22128ef
JM		 4634 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4635 sizeof(group->p2p_pin));
3c5126a4 4636 group->p2p_wps_method = wpa_s->p2p_wps_method;
2b79164f
JM		 4637 } else {
4638 /*
4639 * Need to mark the current interface for p2p_group_formation
4640 * when a separate group interface is not used. This is needed
4641 * to allow p2p_cancel stop a pending p2p_connect-join.
4642 * wpas_p2p_init_group_interface() addresses this for the case
4643 * where a separate group interface is used.
4644 */
4645 wpa_s->global->p2p_group_formation = wpa_s;
3c5126a4 4646 }
b22128ef
JM		 4647
4648 group->p2p_in_provisioning = 1;
aa9bb764 4649 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
b22128ef
JM		 4650
4651 os_memset(&res, 0, sizeof(res));
23318bea 4652 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
b22128ef
JM		 4653 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4654 ETH_ALEN);
4655 res.wps_method = wpa_s->pending_join_wps_method;
23318bea
JM		 4656 if (freq && ssid && ssid_len) {
4657 res.freq = freq;
4658 res.ssid_len = ssid_len;
4659 os_memcpy(res.ssid, ssid, ssid_len);
4660 } else {
4661 bss = wpa_bss_get_bssid_latest(wpa_s,
4662 wpa_s->pending_join_iface_addr);
4663 if (bss) {
4664 res.freq = bss->freq;
4665 res.ssid_len = bss->ssid_len;
4666 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4667 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4668 bss->freq,
4669 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4670 }
8e64f258
JM		 4671 }
4672
e91829f9
JM		 4673 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4674 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4675 "starting client");
4676 wpa_drv_cancel_remain_on_channel(wpa_s);
4677 wpa_s->off_channel_freq = 0;
4678 wpa_s->roc_waiting_drv_freq = 0;
4679 }
b22128ef
JM		 4680 wpas_start_wps_enrollee(group, &res);
4681
3094d483
JM		 4682 /*
4683 * Allow a longer timeout for join-a-running-group than normal 15
4684 * second group formation timeout since the GO may not have authorized
4685 * our connection yet.
4686 */
4687 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4688 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4689 wpa_s, NULL);
4690
b22128ef
JM		 4691 return 0;
4692}
4693
4694
5de4b721 4695static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
51e9f228 4696 int *force_freq, int *pref_freq, int go)
5de4b721 4697{
a0c90bb0
IP		 4698 struct wpa_used_freq_data *freqs;
4699 int res, best_freq, num_unused;
0d08efa4
IP		 4700 unsigned int freq_in_use = 0, num, i;
4701
a0c90bb0
IP		 4702 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4703 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 4704 if (!freqs)
4705 return -1;
4706
a0c90bb0
IP		 4707 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4708 wpa_s->num_multichan_concurrent);
4709
4710 /*
4711 * It is possible that the total number of used frequencies is bigger
4712 * than the number of frequencies used for P2P, so get the system wide
4713 * number of unused frequencies.
4714 */
4715 num_unused = wpas_p2p_num_unused_channels(wpa_s);
4716
99d7c762 4717 wpa_printf(MSG_DEBUG,
a0c90bb0
IP		 4718 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4719 freq, wpa_s->num_multichan_concurrent, num, num_unused);
0d08efa4 4720
5de4b721 4721 if (freq > 0) {
51e9f228
JM		 4722 int ret;
4723 if (go)
4724 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4725 else
4726 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4727 if (!ret) {
5de4b721
JM		 4728 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
4729 "(%u MHz) is not supported for P2P uses",
4730 freq);
0d08efa4
IP		 4731 res = -3;
4732 goto exit_free;
5de4b721
JM		 4733 }
4734
0d08efa4 4735 for (i = 0; i < num; i++) {
a0c90bb0 4736 if (freqs[i].freq == freq)
0d08efa4
IP		 4737 freq_in_use = 1;
4738 }
4739
a0c90bb0 4740 if (num_unused <= 0 && !freq_in_use) {
0d08efa4
IP		 4741 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4742 freq);
4743 res = -2;
4744 goto exit_free;
5de4b721
JM		 4745 }
4746 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4747 "requested channel (%u MHz)", freq);
4748 *force_freq = freq;
0d08efa4
IP		 4749 goto exit_ok;
4750 }
4751
a0c90bb0 4752 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
0d08efa4 4753
a0c90bb0
IP		 4754 /* We have a candidate frequency to use */
4755 if (best_freq > 0) {
4756 if (*pref_freq == 0 && num_unused > 0) {
b17d89bd 4757 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
a0c90bb0
IP		 4758 best_freq);
4759 *pref_freq = best_freq;
b17d89bd
JM		 4760 } else {
4761 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
a0c90bb0
IP		 4762 best_freq);
4763 *force_freq = best_freq;
0d08efa4 4764 }
a0c90bb0
IP		 4765 } else if (num_unused > 0) {
4766 wpa_printf(MSG_DEBUG,
4767 "P2P: Current operating channels are not available for P2P. Try to use another channel");
4768 *force_freq = 0;
4769 } else {
4770 wpa_printf(MSG_DEBUG,
4771 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
4772 res = -2;
4773 goto exit_free;
0d08efa4
IP		 4774 }
4775
4776exit_ok:
4777 res = 0;
4778exit_free:
4779 os_free(freqs);
4780 return res;
5de4b721
JM		 4781}
4782
4783
b22128ef
JM		 4784/**
4785 * wpas_p2p_connect - Request P2P Group Formation to be started
4786 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4787 * @peer_addr: Address of the peer P2P Device
4788 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
4789 * @persistent_group: Whether to create a persistent group
b31be3a0 4790 * @auto_join: Whether to select join vs. GO Negotiation automatically
b22128ef
JM		 4791 * @join: Whether to join an existing group (as a client) instead of starting
4792 * Group Owner negotiation; @peer_addr is BSSID in that case
4793 * @auth: Whether to only authorize the connection instead of doing that and
4794 * initiating Group Owner negotiation
4795 * @go_intent: GO Intent or -1 to use default
4796 * @freq: Frequency for the group or 0 for auto-selection
23c84252
JM		 4797 * @persistent_id: Persistent group credentials to use for forcing GO
4798 * parameters or -1 to generate new values (SSID/passphrase)
3bc462cb
JM		 4799 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
4800 * interoperability workaround when initiating group formation
e2308e4b 4801 * @ht40: Start GO with 40 MHz channel width
20ea1ca4 4802 * @vht: Start GO with VHT support
d054a462
JM		 4803 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
4804 * failure, -2 on failure due to channel not currently available,
4805 * -3 if forced channel is not supported
b22128ef
JM		 4806 */
4807int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4808 const char *pin, enum p2p_wps_method wps_method,
b31be3a0 4809 int persistent_group, int auto_join, int join, int auth,
e2308e4b 4810 int go_intent, int freq, int persistent_id, int pd,
20ea1ca4 4811 int ht40, int vht)
b22128ef 4812{
0d08efa4 4813 int force_freq = 0, pref_freq = 0;
5de4b721 4814 int ret = 0, res;
b22128ef 4815 enum wpa_driver_if_type iftype;
6cad95db 4816 const u8 *if_addr;
23c84252 4817 struct wpa_ssid *ssid = NULL;
b22128ef 4818
9526fd29
JM		 4819 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4820 return -1;
4821
23c84252
JM		 4822 if (persistent_id >= 0) {
4823 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
4824 if (ssid == NULL || ssid->disabled != 2 ||
4825 ssid->mode != WPAS_MODE_P2P_GO)
4826 return -1;
4827 }
4828
01a57fe4
JM		 4829 os_free(wpa_s->global->add_psk);
4830 wpa_s->global->add_psk = NULL;
4831
95fb2db2
JM		 4832 wpa_s->global->p2p_fail_on_wps_complete = 0;
4833
b22128ef
JM		 4834 if (go_intent < 0)
4835 go_intent = wpa_s->conf->p2p_go_intent;
4836
4837 if (!auth)
4838 wpa_s->p2p_long_listen = 0;
4839
3c5126a4 4840 wpa_s->p2p_wps_method = wps_method;
b31be3a0 4841 wpa_s->p2p_persistent_group = !!persistent_group;
23c84252 4842 wpa_s->p2p_persistent_id = persistent_id;
b31be3a0
JM		 4843 wpa_s->p2p_go_intent = go_intent;
4844 wpa_s->p2p_connect_freq = freq;
aa9bb764 4845 wpa_s->p2p_fallback_to_go_neg = 0;
3bc462cb 4846 wpa_s->p2p_pd_before_go_neg = !!pd;
e2308e4b 4847 wpa_s->p2p_go_ht40 = !!ht40;
20ea1ca4 4848 wpa_s->p2p_go_vht = !!vht;
3c5126a4 4849
b22128ef
JM		 4850 if (pin)
4851 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
4852 else if (wps_method == WPS_PIN_DISPLAY) {
4853 ret = wps_generate_pin();
4854 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
4855 ret);
4856 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
4857 wpa_s->p2p_pin);
4858 } else
4859 wpa_s->p2p_pin[0] = '\0';
4860
b31be3a0 4861 if (join || auto_join) {
4147a2cc 4862 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
108def93
JM		 4863 if (auth) {
4864 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
4865 "connect a running group from " MACSTR,
4866 MAC2STR(peer_addr));
4867 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
4868 return ret;
4869 }
4147a2cc 4870 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
b22128ef 4871 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4147a2cc 4872 iface_addr) < 0) {
b22128ef 4873 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4147a2cc
JM		 4874 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
4875 dev_addr);
4876 }
b31be3a0 4877 if (auto_join) {
acb69cec 4878 os_get_reltime(&wpa_s->p2p_auto_started);
b31be3a0
JM		 4879 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
4880 "%ld.%06ld",
4881 wpa_s->p2p_auto_started.sec,
4882 wpa_s->p2p_auto_started.usec);
4883 }
67527166 4884 wpa_s->user_initiated_pd = 1;
b31be3a0 4885 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
23318bea 4886 auto_join, freq, NULL, 0) < 0)
b22128ef
JM		 4887 return -1;
4888 return ret;
4889 }
4890
51e9f228
JM		 4891 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
4892 go_intent == 15);
5de4b721
JM		 4893 if (res)
4894 return res;
1b665cbf
JM		 4895 wpas_p2p_set_own_freq_preference(wpa_s,
4896 force_freq ? force_freq : pref_freq);
b22128ef
JM		 4897
4898 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
4899
6cad95db
JB		 4900 if (wpa_s->create_p2p_iface) {
4901 /* Prepare to add a new interface for the group */
4902 iftype = WPA_IF_P2P_GROUP;
4903 if (go_intent == 15)
4904 iftype = WPA_IF_P2P_GO;
4905 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
4906 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
4907 "interface for the group");
b22128ef 4908 return -1;
6cad95db 4909 }
b22128ef 4910
6cad95db
JB		 4911 if_addr = wpa_s->pending_interface_addr;
4912 } else
4913 if_addr = wpa_s->own_addr;
b22128ef
JM		 4914
4915 if (auth) {
4916 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
6cad95db 4917 go_intent, if_addr,
04a3e69d
JM		 4918 force_freq, persistent_group, ssid,
4919 pref_freq) < 0)
b22128ef
JM		 4920 return -1;
4921 return ret;
4922 }
6cad95db
JB		 4923
4924 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
4925 go_intent, if_addr, force_freq,
04a3e69d 4926 persistent_group, ssid, pref_freq) < 0) {
6cad95db
JB		 4927 if (wpa_s->create_p2p_iface)
4928 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 4929 return -1;
4930 }
4931 return ret;
4932}
4933
4934
4935/**
4936 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
4937 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4938 * @freq: Frequency of the channel in MHz
4939 * @duration: Duration of the stay on the channel in milliseconds
4940 *
4941 * This callback is called when the driver indicates that it has started the
4942 * requested remain-on-channel duration.
4943 */
4944void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4945 unsigned int freq, unsigned int duration)
4946{
9526fd29
JM		 4947 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4948 return;
b22128ef
JM		 4949 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
4950 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
4951 wpa_s->pending_listen_duration);
4952 wpa_s->pending_listen_freq = 0;
211d7ab3
JM		 4953 } else {
4954 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
4955 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
4956 freq, duration);
b22128ef
JM		 4957 }
4958}
4959
4960
4961static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
4962 unsigned int timeout)
4963{
4964 /* Limit maximum Listen state time based on driver limitation. */
4965 if (timeout > wpa_s->max_remain_on_chan)
4966 timeout = wpa_s->max_remain_on_chan;
4967
4968 return p2p_listen(wpa_s->global->p2p, timeout);
4969}
4970
4971
4972/**
4973 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
4974 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4975 * @freq: Frequency of the channel in MHz
4976 *
4977 * This callback is called when the driver indicates that a remain-on-channel
4978 * operation has been completed, i.e., the duration on the requested channel
4979 * has timed out.
4980 */
4981void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4982 unsigned int freq)
4983{
1cc3a29d 4984 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
11fb02be 4985 "(p2p_long_listen=%d ms pending_action_tx=%p)",
2f3101d8 4986 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
e1d1c8e2 4987 wpas_p2p_listen_work_done(wpa_s);
9526fd29
JM		 4988 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4989 return;
b22128ef
JM		 4990 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
4991 return; /* P2P module started a new operation */
2f3101d8 4992 if (offchannel_pending_action_tx(wpa_s))
b22128ef
JM		 4993 return;
4994 if (wpa_s->p2p_long_listen > 0)
11fb02be 4995 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
b22128ef
JM		 4996 if (wpa_s->p2p_long_listen > 0) {
4997 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
11fb02be 4998 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
0b5fb86a
SADR		 4999 } else {
5000 /*
5001 * When listen duration is over, stop listen & update p2p_state
5002 * to IDLE.
5003 */
5004 p2p_stop_listen(wpa_s->global->p2p);
b22128ef
JM		 5005 }
5006}
5007
5008
5009/**
5010 * wpas_p2p_group_remove - Remove a P2P group
5011 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5012 * @ifname: Network interface name of the group interface or "*" to remove all
5013 * groups
5014 * Returns: 0 on success, -1 on failure
5015 *
5016 * This function is used to remove a P2P group. This can be used to disconnect
5017 * from a group in which the local end is a P2P Client or to end a P2P Group in
5018 * case the local end is the Group Owner. If a virtual network interface was
5019 * created for this group, that interface will be removed. Otherwise, only the
5020 * configured P2P group network will be removed from the interface.
5021 */
5022int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
5023{
5024 struct wpa_global *global = wpa_s->global;
5025
5026 if (os_strcmp(ifname, "*") == 0) {
5027 struct wpa_supplicant *prev;
5028 wpa_s = global->ifaces;
5029 while (wpa_s) {
5030 prev = wpa_s;
5031 wpa_s = wpa_s->next;
d99ca89d
IP		 5032 if (prev->p2p_group_interface !=
5033 NOT_P2P_GROUP_INTERFACE ||
5034 (prev->current_ssid &&
5035 prev->current_ssid->p2p_group))
5036 wpas_p2p_disconnect(prev);
b22128ef
JM		 5037 }
5038 return 0;
5039 }
5040
5041 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5042 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5043 break;
5044 }
5045
3103f345 5046 return wpas_p2p_disconnect(wpa_s);
b22128ef
JM		 5047}
5048
5049
4abc0424
WJL		 5050static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5051{
5052 unsigned int r;
5053
5054 if (freq == 2) {
5055 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5056 "band");
5057 if (wpa_s->best_24_freq > 0 &&
556b30da
JM		 5058 p2p_supported_freq_go(wpa_s->global->p2p,
5059 wpa_s->best_24_freq)) {
4abc0424
WJL		 5060 freq = wpa_s->best_24_freq;
5061 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5062 "channel: %d MHz", freq);
5063 } else {
df2508d7
JM		 5064 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5065 return -1;
4abc0424
WJL		 5066 freq = 2412 + (r % 3) * 25;
5067 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5068 "channel: %d MHz", freq);
5069 }
5070 }
5071
5072 if (freq == 5) {
5073 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5074 "band");
5075 if (wpa_s->best_5_freq > 0 &&
556b30da 5076 p2p_supported_freq_go(wpa_s->global->p2p,
4abc0424
WJL		 5077 wpa_s->best_5_freq)) {
5078 freq = wpa_s->best_5_freq;
5079 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5080 "channel: %d MHz", freq);
5081 } else {
df2508d7
JM		 5082 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5083 return -1;
4abc0424 5084 freq = 5180 + (r % 4) * 20;
556b30da 5085 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4abc0424
WJL		 5086 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5087 "5 GHz channel for P2P group");
5088 return -1;
5089 }
5090 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5091 "channel: %d MHz", freq);
5092 }
5093 }
5094
556b30da 5095 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4abc0424
WJL		 5096 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5097 "(%u MHz) is not supported for P2P uses",
5098 freq);
5099 return -1;
5100 }
5101
5102 return freq;
5103}
5104
5105
28812a89
IP		 5106static int wpas_p2p_select_freq_no_pref(struct wpa_supplicant *wpa_s,
5107 struct p2p_go_neg_results *params,
5108 const struct p2p_channels *channels)
5109{
5110 unsigned int i, r;
5111
5112 /* first try some random selection of the social channels */
5e62cfdf
JM		 5113 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
5114 return -1;
28812a89
IP		 5115
5116 for (i = 0; i < 3; i++) {
5117 params->freq = 2412 + ((r + i) % 3) * 25;
5118 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
1595eb93
AM		 5119 freq_included(channels, params->freq) &&
5120 p2p_supported_freq(wpa_s->global->p2p, params->freq))
28812a89
IP		 5121 goto out;
5122 }
5123
5124 /* try all channels in reg. class 81 */
5125 for (i = 0; i < 11; i++) {
5126 params->freq = 2412 + i * 5;
5127 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
1595eb93
AM		 5128 freq_included(channels, params->freq) &&
5129 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5130 goto out;
5131 }
5132
5133 /* try social channel class 180 channel 2 */
5134 params->freq = 58320 + 1 * 2160;
5135 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5136 freq_included(channels, params->freq) &&
5137 p2p_supported_freq(wpa_s->global->p2p, params->freq))
5138 goto out;
5139
5140 /* try all channels in reg. class 180 */
5141 for (i = 0; i < 4; i++) {
5142 params->freq = 58320 + i * 2160;
5143 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5144 freq_included(channels, params->freq) &&
5145 p2p_supported_freq(wpa_s->global->p2p, params->freq))
28812a89
IP		 5146 goto out;
5147 }
5148
1595eb93 5149 wpa_printf(MSG_DEBUG, "P2P: No 2.4 and 60 GHz channel allowed");
28812a89
IP		 5150 return -1;
5151out:
5152 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5153 params->freq);
5154 return 0;
5155}
5156
5157
b8349523
NKG		 5158static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5159 struct p2p_go_neg_results *params,
20ea1ca4 5160 int freq, int ht40, int vht,
54733624 5161 const struct p2p_channels *channels)
b22128ef 5162{
a0c90bb0
IP		 5163 struct wpa_used_freq_data *freqs;
5164 unsigned int pref_freq, cand_freq;
0d08efa4 5165 unsigned int num, i;
b22128ef
JM		 5166
5167 os_memset(params, 0, sizeof(*params));
5168 params->role_go = 1;
7aeac985 5169 params->ht40 = ht40;
20ea1ca4 5170 params->vht = vht;
7cfc4ac3 5171 if (freq) {
54733624
JM		 5172 if (!freq_included(channels, freq)) {
5173 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
5174 "accepted", freq);
5175 return -1;
5176 }
7cfc4ac3
AGS		 5177 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
5178 "frequency %d MHz", freq);
b22128ef 5179 params->freq = freq;
7cfc4ac3
AGS		 5180 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5181 wpa_s->conf->p2p_oper_channel >= 1 &&
54733624
JM		 5182 wpa_s->conf->p2p_oper_channel <= 11 &&
5183 freq_included(channels,
5184 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 5185 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 5186 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5187 "frequency %d MHz", params->freq);
54733624
JM		 5188 } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5189 wpa_s->conf->p2p_oper_reg_class == 116 ||
5190 wpa_s->conf->p2p_oper_reg_class == 117 ||
5191 wpa_s->conf->p2p_oper_reg_class == 124 ||
5192 wpa_s->conf->p2p_oper_reg_class == 126 ||
5193 wpa_s->conf->p2p_oper_reg_class == 127) &&
5194 freq_included(channels,
5195 5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 5196 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 5197 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5198 "frequency %d MHz", params->freq);
5199 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5200 wpa_s->best_overall_freq > 0 &&
556b30da
JM		 5201 p2p_supported_freq_go(wpa_s->global->p2p,
5202 wpa_s->best_overall_freq) &&
54733624 5203 freq_included(channels, wpa_s->best_overall_freq)) {
7cfc4ac3
AGS		 5204 params->freq = wpa_s->best_overall_freq;
5205 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5206 "channel %d MHz", params->freq);
5207 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5208 wpa_s->best_24_freq > 0 &&
556b30da
JM		 5209 p2p_supported_freq_go(wpa_s->global->p2p,
5210 wpa_s->best_24_freq) &&
54733624 5211 freq_included(channels, wpa_s->best_24_freq)) {
7cfc4ac3
AGS		 5212 params->freq = wpa_s->best_24_freq;
5213 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5214 "channel %d MHz", params->freq);
5215 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5216 wpa_s->best_5_freq > 0 &&
556b30da
JM		 5217 p2p_supported_freq_go(wpa_s->global->p2p,
5218 wpa_s->best_5_freq) &&
54733624 5219 freq_included(channels, wpa_s->best_5_freq)) {
7cfc4ac3
AGS		 5220 params->freq = wpa_s->best_5_freq;
5221 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5222 "channel %d MHz", params->freq);
c6ccf12d
SS		 5223 } else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
5224 channels))) {
5225 params->freq = pref_freq;
5226 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5227 "channels", params->freq);
7cfc4ac3 5228 } else {
28812a89
IP		 5229 /* no preference, select some channel */
5230 if (wpas_p2p_select_freq_no_pref(wpa_s, params, channels) < 0)
6f3bc72b 5231 return -1;
7cfc4ac3
AGS		 5232 }
5233
a0c90bb0
IP		 5234 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5235 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 5236 if (!freqs)
5237 return -1;
5238
a0c90bb0 5239 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
0d08efa4 5240 wpa_s->num_multichan_concurrent);
0d08efa4 5241
a0c90bb0
IP		 5242 cand_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5243
5244 /* First try the best used frequency if possible */
5245 if (!freq && cand_freq > 0 && freq_included(channels, cand_freq)) {
5246 params->freq = cand_freq;
5247 } else if (!freq) {
5248 /* Try any of the used frequencies */
5249 for (i = 0; i < num; i++) {
5250 if (freq_included(channels, freqs[i].freq)) {
5251 wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
5252 freqs[i].freq);
5253 params->freq = freqs[i].freq;
5254 break;
5255 }
54733624 5256 }
b8349523 5257
a0c90bb0
IP		 5258 if (i == num) {
5259 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
7d669cf7 5260 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
a0c90bb0
IP		 5261 os_free(freqs);
5262 return -1;
5263 } else {
5264 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
5265 }
5266 }
5267 } else {
5268 for (i = 0; i < num; i++) {
5269 if (freqs[i].freq == freq)
5270 break;
5271 }
5272
5273 if (i == num) {
5274 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5275 if (freq)
5276 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
5277 os_free(freqs);
5278 return -1;
5279 } else {
5280 wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
5281 }
0d08efa4
IP		 5282 }
5283 }
7d669cf7 5284
0d08efa4 5285 os_free(freqs);
b8349523 5286 return 0;
b22128ef
JM		 5287}
5288
5289
5290static struct wpa_supplicant *
5291wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5292 int go)
5293{
5294 struct wpa_supplicant *group_wpa_s;
5295
ac06fb12
JM		 5296 if (!wpas_p2p_create_iface(wpa_s)) {
5297 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5298 "operations");
bbc6c729 5299 wpa_s->p2p_first_connection_timeout = 0;
b22128ef 5300 return wpa_s;
ac06fb12 5301 }
b22128ef
JM		 5302
5303 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
ac06fb12 5304 WPA_IF_P2P_CLIENT) < 0) {
92c4465b
JM		 5305 wpa_msg_global(wpa_s, MSG_ERROR,
5306 "P2P: Failed to add group interface");
b22128ef 5307 return NULL;
ac06fb12 5308 }
b22128ef
JM		 5309 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5310 if (group_wpa_s == NULL) {
92c4465b
JM		 5311 wpa_msg_global(wpa_s, MSG_ERROR,
5312 "P2P: Failed to initialize group interface");
b22128ef
JM		 5313 wpas_p2p_remove_pending_group_interface(wpa_s);
5314 return NULL;
5315 }
5316
ac06fb12
JM		 5317 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5318 group_wpa_s->ifname);
bbc6c729 5319 group_wpa_s->p2p_first_connection_timeout = 0;
b22128ef
JM		 5320 return group_wpa_s;
5321}
5322
5323
5324/**
5325 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5326 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5327 * @persistent_group: Whether to create a persistent group
5328 * @freq: Frequency for the group or 0 to indicate no hardcoding
20ea1ca4
EP		 5329 * @ht40: Start GO with 40 MHz channel width
5330 * @vht: Start GO with VHT support
b22128ef
JM		 5331 * Returns: 0 on success, -1 on failure
5332 *
5333 * This function creates a new P2P group with the local end as the Group Owner,
5334 * i.e., without using Group Owner Negotiation.
5335 */
5336int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
20ea1ca4 5337 int freq, int ht40, int vht)
b22128ef
JM		 5338{
5339 struct p2p_go_neg_results params;
7cfc4ac3 5340
9526fd29
JM		 5341 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5342 return -1;
5343
01a57fe4
JM		 5344 os_free(wpa_s->global->add_psk);
5345 wpa_s->global->add_psk = NULL;
5346
2d4f15d6
JJ		 5347 /* Make sure we are not running find during connection establishment */
5348 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
8713a2e6 5349 wpas_p2p_stop_find_oper(wpa_s);
2d4f15d6 5350
4abc0424
WJL		 5351 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5352 if (freq < 0)
4ae4650b 5353 return -1;
4ae4650b 5354
20ea1ca4 5355 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, NULL))
b8349523 5356 return -1;
f4329aa2 5357 if (params.freq &&
556b30da 5358 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
f4329aa2
JM		 5359 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
5360 "(%u MHz) is not supported for P2P uses",
5361 params.freq);
5362 return -1;
5363 }
b22128ef
JM		 5364 p2p_go_params(wpa_s->global->p2p, &params);
5365 params.persistent_group = persistent_group;
5366
5367 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5368 if (wpa_s == NULL)
5369 return -1;
5370 wpas_start_wps_go(wpa_s, &params, 0);
5371
5372 return 0;
5373}
5374
5375
5376static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
41d5ce9e
RR		 5377 struct wpa_ssid *params, int addr_allocated,
5378 int freq)
b22128ef
JM		 5379{
5380 struct wpa_ssid *ssid;
5381
5382 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5383 if (wpa_s == NULL)
5384 return -1;
5bf9a6c8 5385 wpa_s->p2p_last_4way_hs_fail = NULL;
b22128ef
JM		 5386
5387 wpa_supplicant_ap_deinit(wpa_s);
5388
5389 ssid = wpa_config_add_network(wpa_s->conf);
5390 if (ssid == NULL)
5391 return -1;
b22128ef
JM		 5392 wpa_config_set_network_defaults(ssid);
5393 ssid->temporary = 1;
5394 ssid->proto = WPA_PROTO_RSN;
5395 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5396 ssid->group_cipher = WPA_CIPHER_CCMP;
5397 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5398 ssid->ssid = os_malloc(params->ssid_len);
5399 if (ssid->ssid == NULL) {
b22128ef
JM		 5400 wpa_config_remove_network(wpa_s->conf, ssid->id);
5401 return -1;
5402 }
5403 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5404 ssid->ssid_len = params->ssid_len;
5405 ssid->p2p_group = 1;
d1c8ac88 5406 ssid->export_keys = 1;
b22128ef
JM		 5407 if (params->psk_set) {
5408 os_memcpy(ssid->psk, params->psk, 32);
5409 ssid->psk_set = 1;
5410 }
5411 if (params->passphrase)
5412 ssid->passphrase = os_strdup(params->passphrase);
5413
b22128ef 5414 wpa_s->show_group_started = 1;
41d5ce9e
RR		 5415 wpa_s->p2p_in_invitation = 1;
5416 wpa_s->p2p_invite_go_freq = freq;
b22128ef 5417
91364b7f
SDU		 5418 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5419 NULL);
5420 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5421 wpas_p2p_group_formation_timeout,
5422 wpa_s->parent, NULL);
6fc48481
RR		 5423 wpa_supplicant_select_network(wpa_s, ssid);
5424
b22128ef
JM		 5425 return 0;
5426}
5427
5428
5429int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5430 struct wpa_ssid *ssid, int addr_allocated,
062a7c0d
MS		 5431 int force_freq, int neg_freq, int ht40,
5432 int vht, const struct p2p_channels *channels,
bbc6c729 5433 int connection_timeout)
b22128ef
JM		 5434{
5435 struct p2p_go_neg_results params;
062a7c0d 5436 int go = 0, freq;
b22128ef
JM		 5437
5438 if (ssid->disabled != 2 || ssid->ssid == NULL)
5439 return -1;
5440
6c0da49f
JM		 5441 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5442 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5443 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5444 "already running");
5445 return 0;
5446 }
5447
01a57fe4
JM		 5448 os_free(wpa_s->global->add_psk);
5449 wpa_s->global->add_psk = NULL;
5450
9d39057c 5451 /* Make sure we are not running find during connection establishment */
8713a2e6 5452 wpas_p2p_stop_find_oper(wpa_s);
b22128ef 5453
aa9bb764
JM		 5454 wpa_s->p2p_fallback_to_go_neg = 0;
5455
062a7c0d
MS		 5456 if (force_freq > 0) {
5457 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5458 if (freq < 0)
5459 return -1;
5460 } else {
5461 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5462 if (freq < 0 || (freq > 0 && !freq_included(channels, freq)))
5463 freq = 0;
5464 }
4abc0424 5465
41d5ce9e
RR		 5466 if (ssid->mode == WPAS_MODE_INFRA)
5467 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq);
5468
5469 if (ssid->mode != WPAS_MODE_P2P_GO)
5470 return -1;
5471
20ea1ca4 5472 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, channels))
b8349523 5473 return -1;
b22128ef
JM		 5474
5475 params.role_go = 1;
30c371e8
MH		 5476 params.psk_set = ssid->psk_set;
5477 if (params.psk_set)
5478 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
bb4d4deb
MH		 5479 if (ssid->passphrase) {
5480 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
5481 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
5482 "persistent group");
5483 return -1;
5484 }
5485 os_strlcpy(params.passphrase, ssid->passphrase,
5486 sizeof(params.passphrase));
b22128ef 5487 }
b22128ef
JM		 5488 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
5489 params.ssid_len = ssid->ssid_len;
5490 params.persistent_group = 1;
5491
5492 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
5493 if (wpa_s == NULL)
5494 return -1;
5495
bbc6c729 5496 wpa_s->p2p_first_connection_timeout = connection_timeout;
b22128ef
JM		 5497 wpas_start_wps_go(wpa_s, &params, 0);
5498
5499 return 0;
5500}
5501
5502
5503static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
5504 struct wpabuf *proberesp_ies)
5505{
5506 struct wpa_supplicant *wpa_s = ctx;
5507 if (wpa_s->ap_iface) {
5508 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
adc33680
JM		 5509 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
5510 wpabuf_free(beacon_ies);
5511 wpabuf_free(proberesp_ies);
5512 return;
5513 }
b22128ef
JM		 5514 if (beacon_ies) {
5515 wpabuf_free(hapd->p2p_beacon_ie);
5516 hapd->p2p_beacon_ie = beacon_ies;
5517 }
5518 wpabuf_free(hapd->p2p_probe_resp_ie);
5519 hapd->p2p_probe_resp_ie = proberesp_ies;
5520 } else {
5521 wpabuf_free(beacon_ies);
5522 wpabuf_free(proberesp_ies);
5523 }
5524 wpa_supplicant_ap_update_beacon(wpa_s);
5525}
5526
5527
3071e181
JM		 5528static void wpas_p2p_idle_update(void *ctx, int idle)
5529{
5530 struct wpa_supplicant *wpa_s = ctx;
5531 if (!wpa_s->ap_iface)
5532 return;
5533 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
95fb2db2
JM		 5534 if (idle) {
5535 if (wpa_s->global->p2p_fail_on_wps_complete &&
5536 wpa_s->p2p_in_provisioning) {
5537 wpas_p2p_grpform_fail_after_wps(wpa_s);
5538 return;
5539 }
3071e181 5540 wpas_p2p_set_group_idle_timeout(wpa_s);
95fb2db2 5541 } else
3071e181
JM		 5542 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
5543}
5544
5545
b22128ef 5546struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6f251b6b 5547 struct wpa_ssid *ssid)
b22128ef
JM		 5548{
5549 struct p2p_group *group;
5550 struct p2p_group_config *cfg;
5551
9526fd29
JM		 5552 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5553 return NULL;
3ac17eba 5554
b22128ef
JM		 5555 cfg = os_zalloc(sizeof(*cfg));
5556 if (cfg == NULL)
5557 return NULL;
5558
6f251b6b 5559 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
acc247b2 5560 cfg->persistent_group = 2;
6f251b6b 5561 else if (ssid->p2p_persistent_group)
acc247b2 5562 cfg->persistent_group = 1;
b22128ef 5563 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3f4ce13f
JM		 5564 if (wpa_s->max_stations &&
5565 wpa_s->max_stations < wpa_s->conf->max_num_sta)
5566 cfg->max_clients = wpa_s->max_stations;
5567 else
5568 cfg->max_clients = wpa_s->conf->max_num_sta;
6f251b6b
JM		 5569 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
5570 cfg->ssid_len = ssid->ssid_len;
ea43ad96 5571 cfg->freq = ssid->frequency;
b22128ef
JM		 5572 cfg->cb_ctx = wpa_s;
5573 cfg->ie_update = wpas_p2p_ie_update;
3071e181 5574 cfg->idle_update = wpas_p2p_idle_update;
b22128ef
JM		 5575
5576 group = p2p_group_init(wpa_s->global->p2p, cfg);
5577 if (group == NULL)
5578 os_free(cfg);
6f251b6b 5579 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
b22128ef
JM		 5580 p2p_group_notif_formation_done(group);
5581 wpa_s->p2p_group = group;
5582 return group;
5583}
5584
5585
5586void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5587 int registrar)
5588{
10531d21
JM		 5589 struct wpa_ssid *ssid = wpa_s->current_ssid;
5590
b22128ef
JM		 5591 if (!wpa_s->p2p_in_provisioning) {
5592 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
5593 "provisioning not in progress");
5594 return;
5595 }
5596
10531d21
JM		 5597 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5598 u8 go_dev_addr[ETH_ALEN];
5599 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
5600 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
5601 ssid->ssid_len);
5602 /* Clear any stored provisioning info */
5603 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
5604 }
ec437d9e 5605
b22128ef
JM		 5606 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5607 NULL);
41f85323 5608 wpa_s->p2p_go_group_formation_completed = 1;
361cdf34
JM		 5609 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5610 /*
5611 * Use a separate timeout for initial data connection to
5612 * complete to allow the group to be removed automatically if
5613 * something goes wrong in this step before the P2P group idle
5614 * timeout mechanism is taken into use.
5615 */
41f85323
JM		 5616 wpa_dbg(wpa_s, MSG_DEBUG,
5617 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
5618 P2P_MAX_INITIAL_CONN_WAIT);
361cdf34
JM		 5619 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5620 wpas_p2p_group_formation_timeout,
ad853202 5621 wpa_s->parent, NULL);
41f85323
JM		 5622 } else if (ssid) {
5623 /*
5624 * Use a separate timeout for initial data connection to
5625 * complete to allow the group to be removed automatically if
5626 * the client does not complete data connection successfully.
5627 */
5628 wpa_dbg(wpa_s, MSG_DEBUG,
5629 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
5630 P2P_MAX_INITIAL_CONN_WAIT_GO);
5631 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
5632 wpas_p2p_group_formation_timeout,
5633 wpa_s->parent, NULL);
5634 /*
5635 * Complete group formation on first successful data connection
5636 */
5637 wpa_s->p2p_go_group_formation_completed = 0;
361cdf34 5638 }
b22128ef
JM		 5639 if (wpa_s->global->p2p)
5640 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
5641 wpas_group_formation_completed(wpa_s, 1);
5642}
5643
5644
3734552f
JS		 5645void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
5646 struct wps_event_fail *fail)
5647{
5648 if (!wpa_s->p2p_in_provisioning) {
5649 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
5650 "provisioning not in progress");
5651 return;
5652 }
ec437d9e
JJ		 5653
5654 if (wpa_s->go_params) {
5655 p2p_clear_provisioning_info(
5656 wpa_s->global->p2p,
10531d21 5657 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 5658 }
5659
3734552f 5660 wpas_notify_p2p_wps_failed(wpa_s, fail);
95fb2db2
JM		 5661
5662 if (wpa_s == wpa_s->global->p2p_group_formation) {
5663 /*
5664 * Allow some time for the failed WPS negotiation exchange to
5665 * complete, but remove the group since group formation cannot
5666 * succeed after provisioning failure.
5667 */
5668 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
5669 wpa_s->global->p2p_fail_on_wps_complete = 1;
5670 eloop_deplete_timeout(0, 50000,
5671 wpas_p2p_group_formation_timeout,
5672 wpa_s->parent, NULL);
5673 }
5674}
5675
5676
5677int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
5678{
5679 if (!wpa_s->global->p2p_fail_on_wps_complete ||
5680 !wpa_s->p2p_in_provisioning)
5681 return 0;
5682
5683 wpas_p2p_grpform_fail_after_wps(wpa_s);
5684
5685 return 1;
3734552f
JS		 5686}
5687
5688
b22128ef 5689int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
0918c4bf
JM		 5690 const char *config_method,
5691 enum wpas_p2p_prov_disc_use use)
b22128ef
JM		 5692{
5693 u16 config_methods;
5694
aa9bb764 5695 wpa_s->p2p_fallback_to_go_neg = 0;
0918c4bf 5696 wpa_s->pending_pd_use = NORMAL_PD;
8c5f7309 5697 if (os_strncmp(config_method, "display", 7) == 0)
b22128ef 5698 config_methods = WPS_CONFIG_DISPLAY;
8c5f7309 5699 else if (os_strncmp(config_method, "keypad", 6) == 0)
b22128ef 5700 config_methods = WPS_CONFIG_KEYPAD;
8c5f7309
JJ		 5701 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
5702 os_strncmp(config_method, "pushbutton", 10) == 0)
b22128ef 5703 config_methods = WPS_CONFIG_PUSHBUTTON;
8c5f7309
JJ		 5704 else {
5705 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
b22128ef 5706 return -1;
8c5f7309 5707 }
b22128ef 5708
0918c4bf
JM		 5709 if (use == WPAS_P2P_PD_AUTO) {
5710 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
5711 wpa_s->pending_pd_config_methods = config_methods;
5712 wpa_s->p2p_auto_pd = 1;
5713 wpa_s->p2p_auto_join = 0;
5714 wpa_s->pending_pd_before_join = 0;
84286a22 5715 wpa_s->auto_pd_scan_retry = 0;
0918c4bf
JM		 5716 wpas_p2p_stop_find(wpa_s);
5717 wpa_s->p2p_join_scan_count = 0;
acb69cec 5718 os_get_reltime(&wpa_s->p2p_auto_started);
84286a22
SDU		 5719 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
5720 wpa_s->p2p_auto_started.sec,
5721 wpa_s->p2p_auto_started.usec);
0918c4bf
JM		 5722 wpas_p2p_join_scan(wpa_s, NULL);
5723 return 0;
5724 }
5725
9526fd29 5726 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef
JM		 5727 return -1;
5728
5729 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
0918c4bf 5730 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
67527166 5731 0, 1);
b22128ef
JM		 5732}
5733
5734
5735int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
5736 char *end)
5737{
5738 return p2p_scan_result_text(ies, ies_len, buf, end);
5739}
5740
5741
1cc3a29d
JM		 5742static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
5743{
2f3101d8 5744 if (!offchannel_pending_action_tx(wpa_s))
1cc3a29d
JM		 5745 return;
5746
2fa980f0
JJ		 5747 wpas_p2p_action_tx_clear(wpa_s);
5748
1cc3a29d
JM		 5749 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
5750 "operation request");
2f3101d8 5751 offchannel_clear_pending_action_tx(wpa_s);
1cc3a29d
JM		 5752}
5753
5754
b22128ef 5755int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
046ef4aa 5756 enum p2p_discovery_type type,
6d92fa6e 5757 unsigned int num_req_dev_types, const u8 *req_dev_types,
37448ede 5758 const u8 *dev_id, unsigned int search_delay)
b22128ef 5759{
1cc3a29d 5760 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef
JM		 5761 wpa_s->p2p_long_listen = 0;
5762
5bda43cd 5763 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
85a6cdb5 5764 wpa_s->p2p_in_provisioning)
9526fd29
JM		 5765 return -1;
5766
433cd2ce
JM		 5767 wpa_supplicant_cancel_sched_scan(wpa_s);
5768
046ef4aa 5769 return p2p_find(wpa_s->global->p2p, timeout, type,
37448ede
JM		 5770 num_req_dev_types, req_dev_types, dev_id,
5771 search_delay);
b22128ef
JM		 5772}
5773
5774
8713a2e6 5775static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
b22128ef 5776{
1cc3a29d 5777 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef 5778 wpa_s->p2p_long_listen = 0;
9d39057c 5779 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
ef922c4a 5780 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 5781
9526fd29
JM		 5782 if (wpa_s->global->p2p)
5783 p2p_stop_find(wpa_s->global->p2p);
b22128ef 5784
8713a2e6
JM		 5785 return 0;
5786}
5787
5788
5789void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
5790{
5791 if (wpas_p2p_stop_find_oper(wpa_s) > 0)
5792 return;
b22128ef
JM		 5793 wpas_p2p_remove_pending_group_interface(wpa_s);
5794}
5795
5796
5797static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
5798{
5799 struct wpa_supplicant *wpa_s = eloop_ctx;
5800 wpa_s->p2p_long_listen = 0;
5801}
5802
5803
5804int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
5805{
5806 int res;
5807
9526fd29
JM		 5808 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5809 return -1;
5810
433cd2ce 5811 wpa_supplicant_cancel_sched_scan(wpa_s);
1cc3a29d
JM		 5812 wpas_p2p_clear_pending_action_tx(wpa_s);
5813
b22128ef
JM		 5814 if (timeout == 0) {
5815 /*
5816 * This is a request for unlimited Listen state. However, at
5817 * least for now, this is mapped to a Listen state for one
5818 * hour.
5819 */
5820 timeout = 3600;
5821 }
5822 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5823 wpa_s->p2p_long_listen = 0;
5824
2bb747e2
JM		 5825 /*
5826 * Stop previous find/listen operation to avoid trying to request a new
5827 * remain-on-channel operation while the driver is still running the
5828 * previous one.
5829 */
5830 if (wpa_s->global->p2p)
5831 p2p_stop_find(wpa_s->global->p2p);
5832
b22128ef
JM		 5833 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
5834 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
11fb02be 5835 wpa_s->p2p_long_listen = timeout * 1000;
b22128ef
JM		 5836 eloop_register_timeout(timeout, 0,
5837 wpas_p2p_long_listen_timeout,
5838 wpa_s, NULL);
5839 }
5840
5841 return res;
5842}
5843
5844
4c08c0bd 5845int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 5846 u8 *buf, size_t len, int p2p_group)
5847{
4c08c0bd
JM		 5848 struct wpabuf *p2p_ie;
5849 int ret;
5850
b22128ef
JM		 5851 if (wpa_s->global->p2p_disabled)
5852 return -1;
1c2aa04c
EMK		 5853 if (wpa_s->conf->p2p_disabled)
5854 return -1;
b22128ef
JM		 5855 if (wpa_s->global->p2p == NULL)
5856 return -1;
e1f1509b
JM		 5857 if (bss == NULL)
5858 return -1;
b22128ef 5859
4c08c0bd
JM		 5860 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5861 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
5862 p2p_group, p2p_ie);
5863 wpabuf_free(p2p_ie);
5864
5865 return ret;
b22128ef
JM		 5866}
5867
5868
5869int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
04a85e44 5870 const u8 *dst, const u8 *bssid,
baf513d6 5871 const u8 *ie, size_t ie_len, int ssi_signal)
b22128ef
JM		 5872{
5873 if (wpa_s->global->p2p_disabled)
5874 return 0;
5875 if (wpa_s->global->p2p == NULL)
5876 return 0;
5877
2d43d37f
JB		 5878 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
5879 ie, ie_len)) {
5880 case P2P_PREQ_NOT_P2P:
5881 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
5882 ssi_signal);
5883 /* fall through */
5884 case P2P_PREQ_MALFORMED:
5885 case P2P_PREQ_NOT_LISTEN:
5886 case P2P_PREQ_NOT_PROCESSED:
5887 default: /* make gcc happy */
5888 return 0;
5889 case P2P_PREQ_PROCESSED:
5890 return 1;
5891 }
b22128ef
JM		 5892}
5893
5894
5895void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
5896 const u8 *sa, const u8 *bssid,
5897 u8 category, const u8 *data, size_t len, int freq)
5898{
5899 if (wpa_s->global->p2p_disabled)
5900 return;
5901 if (wpa_s->global->p2p == NULL)
5902 return;
5903
5904 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
5905 freq);
5906}
5907
5908
5909void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
5910{
5911 if (wpa_s->global->p2p_disabled)
5912 return;
5913 if (wpa_s->global->p2p == NULL)
5914 return;
5915
6d92fa6e 5916 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
b22128ef
JM		 5917}
5918
5919
bd10d938 5920static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
b22128ef
JM		 5921{
5922 p2p_group_deinit(wpa_s->p2p_group);
5923 wpa_s->p2p_group = NULL;
a7fd39bb
JD		 5924
5925 wpa_s->ap_configured_cb = NULL;
5926 wpa_s->ap_configured_cb_ctx = NULL;
5927 wpa_s->ap_configured_cb_data = NULL;
5928 wpa_s->connect_without_scan = NULL;
b22128ef
JM		 5929}
5930
5931
5932int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
5933{
5934 wpa_s->p2p_long_listen = 0;
5935
9526fd29
JM		 5936 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5937 return -1;
5938
b22128ef
JM		 5939 return p2p_reject(wpa_s->global->p2p, addr);
5940}
5941
5942
5943/* Invite to reinvoke a persistent group */
5944int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4d32c0c4 5945 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
20ea1ca4 5946 int ht40, int vht, int pref_freq)
b22128ef
JM		 5947{
5948 enum p2p_invite_role role;
0d08efa4
IP		 5949 u8 *bssid = NULL;
5950 int force_freq = 0;
5de4b721 5951 int res;
d0f61a4b 5952 int no_pref_freq_given = pref_freq == 0;
b22128ef 5953
dbca75f8 5954 wpa_s->global->p2p_invite_group = NULL;
77e4e853
JM		 5955 if (peer_addr)
5956 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5957 else
5958 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
5959
4d32c0c4
JM		 5960 wpa_s->p2p_persistent_go_freq = freq;
5961 wpa_s->p2p_go_ht40 = !!ht40;
b22128ef
JM		 5962 if (ssid->mode == WPAS_MODE_P2P_GO) {
5963 role = P2P_INVITE_ROLE_GO;
5964 if (peer_addr == NULL) {
5965 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
5966 "address in invitation command");
5967 return -1;
5968 }
5969 if (wpas_p2p_create_iface(wpa_s)) {
5970 if (wpas_p2p_add_group_interface(wpa_s,
5971 WPA_IF_P2P_GO) < 0) {
5972 wpa_printf(MSG_ERROR, "P2P: Failed to "
5973 "allocate a new interface for the "
5974 "group");
5975 return -1;
5976 }
5977 bssid = wpa_s->pending_interface_addr;
5978 } else
5979 bssid = wpa_s->own_addr;
5980 } else {
5981 role = P2P_INVITE_ROLE_CLIENT;
5982 peer_addr = ssid->bssid;
5983 }
5984 wpa_s->pending_invite_ssid_id = ssid->id;
5985
51e9f228
JM		 5986 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5987 role == P2P_INVITE_ROLE_GO);
5de4b721
JM		 5988 if (res)
5989 return res;
79879f4a 5990
9526fd29
JM		 5991 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5992 return -1;
5993
d0f61a4b
JM		 5994 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
5995 no_pref_freq_given && pref_freq > 0 &&
5996 wpa_s->num_multichan_concurrent > 1 &&
5997 wpas_p2p_num_unused_channels(wpa_s) > 0) {
5998 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
5999 pref_freq);
6000 pref_freq = 0;
6001 }
6002
b22128ef 6003 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a 6004 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
8e9f53c3 6005 1, pref_freq, -1);
b22128ef
JM		 6006}
6007
6008
6009/* Invite to join an active group */
6010int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
6011 const u8 *peer_addr, const u8 *go_dev_addr)
6012{
6013 struct wpa_global *global = wpa_s->global;
6014 enum p2p_invite_role role;
0d08efa4 6015 u8 *bssid = NULL;
b22128ef 6016 struct wpa_ssid *ssid;
c427ac92 6017 int persistent;
73b54d63 6018 int freq = 0, force_freq = 0, pref_freq = 0;
5de4b721 6019 int res;
b22128ef 6020
4d32c0c4
JM		 6021 wpa_s->p2p_persistent_go_freq = 0;
6022 wpa_s->p2p_go_ht40 = 0;
20ea1ca4 6023 wpa_s->p2p_go_vht = 0;
4d32c0c4 6024
b22128ef
JM		 6025 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6026 if (os_strcmp(wpa_s->ifname, ifname) == 0)
6027 break;
6028 }
6029 if (wpa_s == NULL) {
6030 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
6031 return -1;
6032 }
6033
6034 ssid = wpa_s->current_ssid;
6035 if (ssid == NULL) {
6036 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
6037 "invitation");
6038 return -1;
6039 }
6040
dbca75f8 6041 wpa_s->global->p2p_invite_group = wpa_s;
c427ac92
JM		 6042 persistent = ssid->p2p_persistent_group &&
6043 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
6044 ssid->ssid, ssid->ssid_len);
6045
b22128ef
JM		 6046 if (ssid->mode == WPAS_MODE_P2P_GO) {
6047 role = P2P_INVITE_ROLE_ACTIVE_GO;
6048 bssid = wpa_s->own_addr;
6049 if (go_dev_addr == NULL)
d7e70476 6050 go_dev_addr = wpa_s->global->p2p_dev_addr;
73b54d63 6051 freq = ssid->frequency;
b22128ef
JM		 6052 } else {
6053 role = P2P_INVITE_ROLE_CLIENT;
6054 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
6055 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
6056 "invite to current group");
6057 return -1;
6058 }
6059 bssid = wpa_s->bssid;
6060 if (go_dev_addr == NULL &&
6061 !is_zero_ether_addr(wpa_s->go_dev_addr))
6062 go_dev_addr = wpa_s->go_dev_addr;
73b54d63
JM		 6063 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6064 (int) wpa_s->assoc_freq;
b22128ef 6065 }
bb79dc72 6066 wpa_s->parent->pending_invite_ssid_id = -1;
b22128ef 6067
9526fd29
JM		 6068 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6069 return -1;
6070
51e9f228
JM		 6071 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
6072 role == P2P_INVITE_ROLE_ACTIVE_GO);
5de4b721
JM		 6073 if (res)
6074 return res;
0d08efa4 6075 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
79879f4a 6076
b22128ef 6077 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a 6078 ssid->ssid, ssid->ssid_len, force_freq,
8e9f53c3 6079 go_dev_addr, persistent, pref_freq, -1);
b22128ef
JM		 6080}
6081
6082
6083void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6084{
6085 struct wpa_ssid *ssid = wpa_s->current_ssid;
b22128ef 6086 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 6087 int network_id = -1;
b22128ef 6088 int persistent;
b49d6ccb 6089 int freq;
25ef8529
JM		 6090 u8 ip[3 * 4];
6091 char ip_addr[100];
b22128ef 6092
73ccd083
JM		 6093 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6094 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6095 wpa_s->parent, NULL);
6096 }
361cdf34 6097
b22128ef 6098 if (!wpa_s->show_group_started || !ssid)
1b5d4714 6099 return;
b22128ef
JM		 6100
6101 wpa_s->show_group_started = 0;
6102
b22128ef
JM		 6103 os_memset(go_dev_addr, 0, ETH_ALEN);
6104 if (ssid->bssid_set)
6105 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6106 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6107 ssid->ssid_len);
6108 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6109
a0a9f3b0
JM		 6110 if (wpa_s->global->p2p_group_formation == wpa_s)
6111 wpa_s->global->p2p_group_formation = NULL;
6112
b49d6ccb
JJ		 6113 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6114 (int) wpa_s->assoc_freq;
25ef8529
JM		 6115
6116 ip_addr[0] = '\0';
6117 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6118 os_snprintf(ip_addr, sizeof(ip_addr), " ip_addr=%u.%u.%u.%u "
6119 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6120 ip[0], ip[1], ip[2], ip[3],
6121 ip[4], ip[5], ip[6], ip[7],
6122 ip[8], ip[9], ip[10], ip[11]);
6123 }
6124
f8723e1e
JM		 6125 wpas_p2p_group_started(wpa_s, 0, ssid, freq,
6126 ssid->passphrase == NULL && ssid->psk_set ?
6127 ssid->psk : NULL,
6128 ssid->passphrase, go_dev_addr, persistent,
6129 ip_addr);
b22128ef
JM		 6130
6131 if (persistent)
4b6baa2f
JMB		 6132 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6133 ssid, go_dev_addr);
6134 if (network_id < 0)
6135 network_id = ssid->id;
6136 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
b22128ef
JM		 6137}
6138
6139
6140int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6141 u32 interval1, u32 duration2, u32 interval2)
6142{
c64e3a08
JM		 6143 int ret;
6144
9526fd29
JM		 6145 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6146 return -1;
3ac17eba 6147
b22128ef
JM		 6148 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6149 wpa_s->current_ssid == NULL ||
6150 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6151 return -1;
6152
c64e3a08
JM		 6153 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6154 wpa_s->own_addr, wpa_s->assoc_freq,
6155 duration1, interval1, duration2, interval2);
6156 if (ret == 0)
6157 wpa_s->waiting_presence_resp = 1;
6158
6159 return ret;
b22128ef
JM		 6160}
6161
6162
6163int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6164 unsigned int interval)
6165{
9526fd29
JM		 6166 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6167 return -1;
6168
b22128ef
JM		 6169 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6170}
6171
6172
c8106615
JM		 6173static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6174{
5fbddfdc
JM		 6175 if (wpa_s->current_ssid == NULL) {
6176 /*
c7deed74 6177 * current_ssid can be cleared when P2P client interface gets
5fbddfdc
JM		 6178 * disconnected, so assume this interface was used as P2P
6179 * client.
6180 */
6181 return 1;
6182 }
6183 return wpa_s->current_ssid->p2p_group &&
c8106615
JM		 6184 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6185}
6186
6187
3071e181
JM		 6188static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6189{
6190 struct wpa_supplicant *wpa_s = eloop_ctx;
6191
c8106615 6192 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
3071e181
JM		 6193 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6194 "disabled");
6195 return;
6196 }
6197
6198 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6199 "group");
8dba4aef 6200 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
3071e181
JM		 6201}
6202
6203
6204static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6205{
5f482d55 6206 int timeout;
c8106615 6207
dddc7045
JM		 6208 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6209 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6210
c8106615 6211 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3071e181
JM		 6212 return;
6213
c8106615
JM		 6214 timeout = wpa_s->conf->p2p_group_idle;
6215 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6216 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6217 timeout = P2P_MAX_CLIENT_IDLE;
6218
6219 if (timeout == 0)
3071e181
JM		 6220 return;
6221
5f482d55
JM		 6222 if (timeout < 0) {
6223 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6224 timeout = 0; /* special client mode no-timeout */
6225 else
6226 return;
6227 }
6228
8c472816
JM		 6229 if (wpa_s->p2p_in_provisioning) {
6230 /*
6231 * Use the normal group formation timeout during the
6232 * provisioning phase to avoid terminating this process too
6233 * early due to group idle timeout.
6234 */
6235 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6236 "during provisioning");
6237 return;
6238 }
6239
361cdf34
JM		 6240 if (wpa_s->show_group_started) {
6241 /*
6242 * Use the normal group formation timeout between the end of
6243 * the provisioning phase and completion of 4-way handshake to
6244 * avoid terminating this process too early due to group idle
6245 * timeout.
6246 */
6247 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6248 "while waiting for initial 4-way handshake to "
6249 "complete");
6250 return;
6251 }
6252
3071e181 6253 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
c8106615
JM		 6254 timeout);
6255 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6256 wpa_s, NULL);
3071e181
JM		 6257}
6258
6259
0aadd568
JM		 6260/* Returns 1 if the interface was removed */
6261int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6262 u16 reason_code, const u8 *ie, size_t ie_len,
6263 int locally_generated)
b22128ef 6264{
9526fd29 6265 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
0aadd568 6266 return 0;
b22128ef 6267
3fc14102
JM		 6268 if (!locally_generated)
6269 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6270 ie_len);
6271
6272 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6273 wpa_s->current_ssid &&
6274 wpa_s->current_ssid->p2p_group &&
6275 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6276 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6277 "session is ending");
0aadd568
JM		 6278 if (wpas_p2p_group_delete(wpa_s,
6279 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6280 > 0)
6281 return 1;
3fc14102 6282 }
0aadd568
JM		 6283
6284 return 0;
b22128ef
JM		 6285}
6286
6287
6288void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3fc14102
JM		 6289 u16 reason_code, const u8 *ie, size_t ie_len,
6290 int locally_generated)
b22128ef 6291{
9526fd29 6292 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 6293 return;
6294
3fc14102
JM		 6295 if (!locally_generated)
6296 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6297 ie_len);
b22128ef
JM		 6298}
6299
6300
6301void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6302{
6303 struct p2p_data *p2p = wpa_s->global->p2p;
6304
6305 if (p2p == NULL)
6306 return;
6307
4c010834
KL		 6308 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6309 return;
6310
b22128ef
JM		 6311 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6312 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6313
2f646b6e
JB		 6314 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6315 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
b22128ef 6316
b6e01800
JM		 6317 if (wpa_s->wps &&
6318 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6319 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6320
6321 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6322 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6323
6324 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6325 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6326 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6327 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6328 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6329 }
6330
2f646b6e
JB		 6331 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6332 p2p_set_sec_dev_types(p2p,
6333 (void *) wpa_s->conf->sec_device_type,
6334 wpa_s->conf->num_sec_device_types);
b22128ef 6335
f95cac27
JMB		 6336 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6337 int i;
6338 p2p_remove_wps_vendor_extensions(p2p);
6339 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6340 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6341 continue;
6342 p2p_add_wps_vendor_extension(
6343 p2p, wpa_s->conf->wps_vendor_ext[i]);
6344 }
6345 }
6346
b22128ef
JM		 6347 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6348 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6349 char country[3];
6350 country[0] = wpa_s->conf->country[0];
6351 country[1] = wpa_s->conf->country[1];
6352 country[2] = 0x04;
6353 p2p_set_country(p2p, country);
6354 }
6355
6356 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6357 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6358 wpa_s->conf->p2p_ssid_postfix ?
6359 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6360 0);
6361 }
0f66abd2
SS		 6362
6363 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6364 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
2463ba70
JS		 6365
6366 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6367 u8 reg_class, channel;
6368 int ret;
6369 unsigned int r;
e3bd6e9d
IP		 6370 u8 channel_forced;
6371
2463ba70
JS		 6372 if (wpa_s->conf->p2p_listen_reg_class &&
6373 wpa_s->conf->p2p_listen_channel) {
6374 reg_class = wpa_s->conf->p2p_listen_reg_class;
6375 channel = wpa_s->conf->p2p_listen_channel;
e3bd6e9d 6376 channel_forced = 1;
2463ba70
JS		 6377 } else {
6378 reg_class = 81;
6379 /*
6380 * Pick one of the social channels randomly as the
6381 * listen channel.
6382 */
df2508d7
JM		 6383 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6384 channel = 1;
6385 else
6386 channel = 1 + (r % 3) * 5;
e3bd6e9d 6387 channel_forced = 0;
2463ba70 6388 }
e3bd6e9d
IP		 6389 ret = p2p_set_listen_channel(p2p, reg_class, channel,
6390 channel_forced);
2463ba70
JS		 6391 if (ret)
6392 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6393 "failed: %d", ret);
6394 }
6395 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6396 u8 op_reg_class, op_channel, cfg_op_channel;
6397 int ret = 0;
6398 unsigned int r;
6399 if (wpa_s->conf->p2p_oper_reg_class &&
6400 wpa_s->conf->p2p_oper_channel) {
6401 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
6402 op_channel = wpa_s->conf->p2p_oper_channel;
6403 cfg_op_channel = 1;
6404 } else {
6405 op_reg_class = 81;
6406 /*
6407 * Use random operation channel from (1, 6, 11)
6408 *if no other preference is indicated.
6409 */
df2508d7
JM		 6410 if (os_get_random((u8 *) &r, sizeof(r)) < 0)
6411 op_channel = 1;
6412 else
6413 op_channel = 1 + (r % 3) * 5;
2463ba70
JS		 6414 cfg_op_channel = 0;
6415 }
6416 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
6417 cfg_op_channel);
6418 if (ret)
6419 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
6420 "failed: %d", ret);
6421 }
21d996f7
JM		 6422
6423 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
6424 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
6425 wpa_s->conf->p2p_pref_chan) < 0) {
6426 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
6427 "update failed");
6428 }
556b30da
JM		 6429
6430 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
6431 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
6432 "update failed");
6433 }
21d996f7 6434 }
1b928f96
JM		 6435
6436 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
6437 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
b22128ef 6438}
aefb53bd
JM		 6439
6440
6441int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
6442 int duration)
6443{
6444 if (!wpa_s->ap_iface)
6445 return -1;
6446 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
6447 duration);
6448}
72044390
JM		 6449
6450
6451int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
6452{
9526fd29 6453 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
72044390 6454 return -1;
72044390
JM		 6455
6456 wpa_s->global->cross_connection = enabled;
6457 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
6458
6459 if (!enabled) {
6460 struct wpa_supplicant *iface;
6461
6462 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
6463 {
6464 if (iface->cross_connect_enabled == 0)
6465 continue;
6466
6467 iface->cross_connect_enabled = 0;
6468 iface->cross_connect_in_use = 0;
92c4465b
JM		 6469 wpa_msg_global(iface->parent, MSG_INFO,
6470 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6471 iface->ifname,
6472 iface->cross_connect_uplink);
72044390
JM		 6473 }
6474 }
6475
6476 return 0;
6477}
6478
6479
6480static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
6481{
6482 struct wpa_supplicant *iface;
6483
6484 if (!uplink->global->cross_connection)
6485 return;
6486
6487 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6488 if (!iface->cross_connect_enabled)
6489 continue;
6490 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6491 0)
6492 continue;
6493 if (iface->ap_iface == NULL)
6494 continue;
6495 if (iface->cross_connect_in_use)
6496 continue;
6497
6498 iface->cross_connect_in_use = 1;
92c4465b
JM		 6499 wpa_msg_global(iface->parent, MSG_INFO,
6500 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6501 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 6502 }
6503}
6504
6505
6506static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
6507{
6508 struct wpa_supplicant *iface;
6509
6510 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6511 if (!iface->cross_connect_enabled)
6512 continue;
6513 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6514 0)
6515 continue;
6516 if (!iface->cross_connect_in_use)
6517 continue;
6518
92c4465b
JM		 6519 wpa_msg_global(iface->parent, MSG_INFO,
6520 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6521 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 6522 iface->cross_connect_in_use = 0;
6523 }
6524}
6525
6526
6527void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
6528{
6529 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
6530 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
6531 wpa_s->cross_connect_disallowed)
6532 wpas_p2p_disable_cross_connect(wpa_s);
6533 else
6534 wpas_p2p_enable_cross_connect(wpa_s);
dddc7045
JM		 6535 if (!wpa_s->ap_iface &&
6536 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6537 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
72044390
JM		 6538}
6539
6540
6541void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
6542{
6543 wpas_p2p_disable_cross_connect(wpa_s);
4c2c6751
JM		 6544 if (!wpa_s->ap_iface &&
6545 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
6546 wpa_s, NULL))
3071e181 6547 wpas_p2p_set_group_idle_timeout(wpa_s);
72044390
JM		 6548}
6549
6550
6551static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
6552{
6553 struct wpa_supplicant *iface;
6554
6555 if (!wpa_s->global->cross_connection)
6556 return;
6557
6558 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
6559 if (iface == wpa_s)
6560 continue;
6561 if (iface->drv_flags &
6562 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
6563 continue;
6564 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
6565 continue;
6566
6567 wpa_s->cross_connect_enabled = 1;
6568 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
6569 sizeof(wpa_s->cross_connect_uplink));
6570 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
6571 "%s to %s whenever uplink is available",
6572 wpa_s->ifname, wpa_s->cross_connect_uplink);
6573
6574 if (iface->ap_iface || iface->current_ssid == NULL ||
6575 iface->current_ssid->mode != WPAS_MODE_INFRA ||
6576 iface->cross_connect_disallowed ||
6577 iface->wpa_state != WPA_COMPLETED)
6578 break;
6579
6580 wpa_s->cross_connect_in_use = 1;
92c4465b
JM		 6581 wpa_msg_global(wpa_s->parent, MSG_INFO,
6582 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6583 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390
JM		 6584 break;
6585 }
6586}
b73bf0a7
JM		 6587
6588
6589int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
6590{
6591 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
6592 !wpa_s->p2p_in_provisioning)
6593 return 0; /* not P2P client operation */
6594
6595 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
6596 "session overlap");
148bb37f
JM		 6597 if (wpa_s != wpa_s->parent)
6598 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
1075b295 6599 wpas_p2p_group_formation_failed(wpa_s);
b73bf0a7
JM		 6600 return 1;
6601}
b5c9da8d
JM		 6602
6603
ace0fbdb
AS		 6604void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
6605{
6606 struct wpa_supplicant *wpa_s = eloop_ctx;
6607 wpas_p2p_notif_pbc_overlap(wpa_s);
6608}
6609
6610
b5c9da8d
JM		 6611void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
6612{
51e9f228 6613 struct p2p_channels chan, cli_chan;
7b42862a 6614 struct wpa_supplicant *ifs;
b5c9da8d
JM		 6615
6616 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
6617 return;
6618
6619 os_memset(&chan, 0, sizeof(chan));
51e9f228
JM		 6620 os_memset(&cli_chan, 0, sizeof(cli_chan));
6621 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
b5c9da8d
JM		 6622 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
6623 "channel list");
6624 return;
6625 }
6626
51e9f228 6627 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7b42862a
EMK		 6628
6629 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
6630 int freq;
6631 if (!ifs->current_ssid ||
6632 !ifs->current_ssid->p2p_group ||
6633 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
6634 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
6635 continue;
6636 freq = ifs->current_ssid->frequency;
6637 if (freq_included(&chan, freq)) {
6638 wpa_dbg(ifs, MSG_DEBUG,
6639 "P2P GO operating frequency %d MHz in valid range",
6640 freq);
6641 continue;
6642 }
6643
6644 wpa_dbg(ifs, MSG_DEBUG,
6645 "P2P GO operating in invalid frequency %d MHz", freq);
6646 /* TODO: Consider using CSA or removing the group within
6647 * wpa_supplicant */
6648 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
6649 }
b5c9da8d 6650}
59eba7a2
JM		 6651
6652
50178335
JM		 6653static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
6654 struct wpa_scan_results *scan_res)
6655{
6656 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6657}
6658
6659
59eba7a2
JM		 6660int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
6661{
6662 struct wpa_global *global = wpa_s->global;
6663 int found = 0;
231bbd03 6664 const u8 *peer;
59eba7a2 6665
9526fd29
JM		 6666 if (global->p2p == NULL)
6667 return -1;
6668
59eba7a2
JM		 6669 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
6670
6671 if (wpa_s->pending_interface_name[0] &&
6672 !is_zero_ether_addr(wpa_s->pending_interface_addr))
6673 found = 1;
6674
231bbd03
SS		 6675 peer = p2p_get_go_neg_peer(global->p2p);
6676 if (peer) {
6677 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
6678 MACSTR, MAC2STR(peer));
6679 p2p_unauthorize(global->p2p, peer);
75c208b9 6680 found = 1;
231bbd03
SS		 6681 }
6682
50178335
JM		 6683 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
6684 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
6685 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
6686 found = 1;
6687 }
6688
6689 if (wpa_s->pending_pd_before_join) {
6690 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
6691 wpa_s->pending_pd_before_join = 0;
6692 found = 1;
6693 }
6694
59eba7a2
JM		 6695 wpas_p2p_stop_find(wpa_s);
6696
6697 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6698 if (wpa_s == global->p2p_group_formation &&
a0a9f3b0
JM		 6699 (wpa_s->p2p_in_provisioning ||
6700 wpa_s->parent->pending_interface_type ==
6701 WPA_IF_P2P_CLIENT)) {
59eba7a2
JM		 6702 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
6703 "formation found - cancelling",
6704 wpa_s->ifname);
6705 found = 1;
45fee6f0
SS		 6706 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6707 wpa_s->parent, NULL);
30b80389
JM		 6708 if (wpa_s->p2p_in_provisioning) {
6709 wpas_group_formation_completed(wpa_s, 0);
6710 break;
6711 }
8dba4aef
JM		 6712 wpas_p2p_group_delete(wpa_s,
6713 P2P_GROUP_REMOVAL_REQUESTED);
59eba7a2 6714 break;
f05cee97
JM		 6715 } else if (wpa_s->p2p_in_invitation) {
6716 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
6717 wpa_s->ifname);
6718 found = 1;
6719 wpas_p2p_group_formation_failed(wpa_s);
59eba7a2
JM		 6720 }
6721 }
6722
6723 if (!found) {
6724 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
6725 return -1;
6726 }
6727
6728 return 0;
6729}
c973f386
JM		 6730
6731
6732void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
6733{
6734 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6735 return;
6736
6737 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
6738 "being available anymore");
8dba4aef 6739 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
c973f386 6740}
7cfc4ac3
AGS		 6741
6742
6743void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
6744 int freq_24, int freq_5, int freq_overall)
6745{
6746 struct p2p_data *p2p = wpa_s->global->p2p;
152cff6b 6747 if (p2p == NULL)
7cfc4ac3
AGS		 6748 return;
6749 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
6750}
9d562b79
SS		 6751
6752
6753int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
6754{
6755 u8 peer[ETH_ALEN];
6756 struct p2p_data *p2p = wpa_s->global->p2p;
6757
152cff6b 6758 if (p2p == NULL)
9d562b79
SS		 6759 return -1;
6760
6761 if (hwaddr_aton(addr, peer))
6762 return -1;
6763
6764 return p2p_unauthorize(p2p, peer);
6765}
3103f345
JB		 6766
6767
6768/**
6769 * wpas_p2p_disconnect - Disconnect from a P2P Group
6770 * @wpa_s: Pointer to wpa_supplicant data
6771 * Returns: 0 on success, -1 on failure
6772 *
6773 * This can be used to disconnect from a group in which the local end is a P2P
6774 * Client or to end a P2P Group in case the local end is the Group Owner. If a
6775 * virtual network interface was created for this group, that interface will be
6776 * removed. Otherwise, only the configured P2P group network will be removed
6777 * from the interface.
6778 */
6779int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
6780{
6781
6782 if (wpa_s == NULL)
6783 return -1;
6784
0aadd568
JM		 6785 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
6786 -1 : 0;
3103f345 6787}
303f60d3
JM		 6788
6789
6790int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
6791{
ec01d5f6
JM		 6792 int ret;
6793
303f60d3
JM		 6794 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6795 return 0;
6796
ec01d5f6
JM		 6797 ret = p2p_in_progress(wpa_s->global->p2p);
6798 if (ret == 0) {
6799 /*
6800 * Check whether there is an ongoing WPS provisioning step (or
6801 * other parts of group formation) on another interface since
6802 * p2p_in_progress() does not report this to avoid issues for
6803 * scans during such provisioning step.
6804 */
6805 if (wpa_s->global->p2p_group_formation &&
6806 wpa_s->global->p2p_group_formation != wpa_s) {
6807 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
6808 "in group formation",
6809 wpa_s->global->p2p_group_formation->ifname);
6810 ret = 1;
6811 }
6812 }
6813
c1c0b35f 6814 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
151ab808
JB		 6815 struct os_reltime now;
6816 os_get_reltime(&now);
6817 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
6818 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
c1c0b35f
JM		 6819 /* Wait for the first client has expired */
6820 wpa_s->global->p2p_go_wait_client.sec = 0;
6821 } else {
6822 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
6823 ret = 1;
6824 }
6825 }
6826
ec01d5f6 6827 return ret;
303f60d3 6828}
502618f7
JM		 6829
6830
6831void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
6832 struct wpa_ssid *ssid)
502618f7
JM		 6833{
6834 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
6835 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6836 wpa_s->parent, NULL) > 0) {
eb6f8c2b
AC		 6837 /**
6838 * Remove the network by scheduling the group formation
6839 * timeout to happen immediately. The teardown code
6840 * needs to be scheduled to run asynch later so that we
6841 * don't delete data from under ourselves unexpectedly.
6842 * Calling wpas_p2p_group_formation_timeout directly
6843 * causes a series of crashes in WPS failure scenarios.
6844 */
502618f7
JM		 6845 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
6846 "P2P group network getting removed");
eb6f8c2b
AC		 6847 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
6848 wpa_s->parent, NULL);
502618f7
JM		 6849 }
6850}
87f841a1
JM		 6851
6852
6853struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
c427ac92
JM		 6854 const u8 *addr, const u8 *ssid,
6855 size_t ssid_len)
87f841a1
JM		 6856{
6857 struct wpa_ssid *s;
fbdcfd57 6858 size_t i;
87f841a1
JM		 6859
6860 for (s = wpa_s->conf->ssid; s; s = s->next) {
fbdcfd57
JM		 6861 if (s->disabled != 2)
6862 continue;
c427ac92
JM		 6863 if (ssid &&
6864 (ssid_len != s->ssid_len ||
6865 os_memcmp(ssid, s->ssid, ssid_len) != 0))
6866 continue;
01a57fe4
JM		 6867 if (addr == NULL) {
6868 if (s->mode == WPAS_MODE_P2P_GO)
6869 return s;
6870 continue;
6871 }
fbdcfd57
JM		 6872 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
6873 return s; /* peer is GO in the persistent group */
6874 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
6875 continue;
6876 for (i = 0; i < s->num_p2p_clients; i++) {
6877 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
6878 addr, ETH_ALEN) == 0)
6879 return s; /* peer is P2P client in persistent
6880 * group */
6881 }
87f841a1
JM		 6882 }
6883
6884 return NULL;
6885}
fbdcfd57
JM		 6886
6887
6888void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
6889 const u8 *addr)
6890{
eab2b50d
JM		 6891 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6892 wpa_s->parent, NULL) > 0) {
6893 /*
6894 * This can happen if WPS provisioning step is not terminated
6895 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
6896 * peer was able to connect, there is no need to time out group
41f85323
JM		 6897 * formation after this, though. In addition, this is used with
6898 * the initial connection wait on the GO as a separate formation
6899 * timeout and as such, expected to be hit after the initial WPS
6900 * provisioning step.
eab2b50d 6901 */
41f85323 6902 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
61fc9048
SD		 6903
6904 if (!wpa_s->p2p_go_group_formation_completed &&
6905 !wpa_s->group_formation_reported) {
6906 /*
6907 * GO has not yet notified group formation success since
6908 * the WPS step was not completed cleanly. Do that
6909 * notification now since the P2P Client was able to
6910 * connect and as such, must have received the
6911 * credential from the WPS step.
6912 */
6913 if (wpa_s->global->p2p)
6914 p2p_wps_success_cb(wpa_s->global->p2p, addr);
6915 wpas_group_formation_completed(wpa_s, 1);
6916 }
41f85323
JM		 6917 }
6918 if (!wpa_s->p2p_go_group_formation_completed) {
6919 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
6920 wpa_s->p2p_go_group_formation_completed = 1;
6921 wpa_s->global->p2p_group_formation = NULL;
6922 wpa_s->p2p_in_provisioning = 0;
f05cee97 6923 wpa_s->p2p_in_invitation = 0;
eab2b50d 6924 }
c1c0b35f 6925 wpa_s->global->p2p_go_wait_client.sec = 0;
fbdcfd57
JM		 6926 if (addr == NULL)
6927 return;
6928 wpas_p2p_add_persistent_group_client(wpa_s, addr);
6929}
aa9bb764
JM		 6930
6931
6932static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
6933 int group_added)
6934{
6935 struct wpa_supplicant *group = wpa_s;
6936 if (wpa_s->global->p2p_group_formation)
6937 group = wpa_s->global->p2p_group_formation;
6938 wpa_s = wpa_s->parent;
b80eb89d 6939 offchannel_send_action_done(wpa_s);
aa9bb764 6940 if (group_added)
8dba4aef 6941 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
aa9bb764
JM		 6942 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
6943 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
6944 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
6945 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
3bc462cb 6946 wpa_s->p2p_persistent_id,
e2308e4b 6947 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 6948 wpa_s->p2p_go_ht40,
6949 wpa_s->p2p_go_vht);
aa9bb764
JM		 6950}
6951
6952
6953int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
6954{
6955 if (!wpa_s->p2p_fallback_to_go_neg ||
6956 wpa_s->p2p_in_provisioning <= 5)
6957 return 0;
6958
b80eb89d
JM		 6959 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
6960 return 0; /* peer operating as a GO */
6961
aa9bb764
JM		 6962 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
6963 "fallback to GO Negotiation");
6964 wpas_p2p_fallback_to_go_neg(wpa_s, 1);
6965
6966 return 1;
6967}
05a77b3b
JM		 6968
6969
6970unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
6971{
05a77b3b
JM		 6972 struct wpa_supplicant *ifs;
6973
6974 if (wpa_s->wpa_state > WPA_SCANNING) {
6975 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
6976 "concurrent operation",
d3b20469
NS		 6977 wpa_s->conf->p2p_search_delay);
6978 return wpa_s->conf->p2p_search_delay;
05a77b3b
JM		 6979 }
6980
5b81927d
JM		 6981 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
6982 radio_list) {
6983 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
05a77b3b
JM		 6984 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
6985 "delay due to concurrent operation on "
6986 "interface %s",
d3b20469
NS		 6987 wpa_s->conf->p2p_search_delay,
6988 ifs->ifname);
6989 return wpa_s->conf->p2p_search_delay;
05a77b3b
JM		 6990 }
6991 }
6992
6993 return 0;
6994}
f85f545e
JM		 6995
6996
43c693c2
JM		 6997static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
6998 struct wpa_ssid *s, const u8 *addr,
6999 int iface_addr)
7000{
7001 struct psk_list_entry *psk, *tmp;
7002 int changed = 0;
7003
7004 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
7005 list) {
7006 if ((iface_addr && !psk->p2p &&
7007 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
7008 (!iface_addr && psk->p2p &&
7009 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
7010 wpa_dbg(wpa_s, MSG_DEBUG,
7011 "P2P: Remove persistent group PSK list entry for "
7012 MACSTR " p2p=%u",
7013 MAC2STR(psk->addr), psk->p2p);
7014 dl_list_del(&psk->list);
7015 os_free(psk);
7016 changed++;
7017 }
7018 }
7019
7020 return changed;
7021}
7022
7023
01a57fe4
JM		 7024void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
7025 const u8 *p2p_dev_addr,
7026 const u8 *psk, size_t psk_len)
7027{
7028 struct wpa_ssid *ssid = wpa_s->current_ssid;
7029 struct wpa_ssid *persistent;
0bceb8d6 7030 struct psk_list_entry *p, *last;
01a57fe4
JM		 7031
7032 if (psk_len != sizeof(p->psk))
7033 return;
7034
7035 if (p2p_dev_addr) {
7036 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
7037 " p2p_dev_addr=" MACSTR,
7038 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
7039 if (is_zero_ether_addr(p2p_dev_addr))
7040 p2p_dev_addr = NULL;
7041 } else {
7042 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
7043 MAC2STR(mac_addr));
7044 }
7045
7046 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
7047 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
7048 /* To be added to persistent group once created */
7049 if (wpa_s->global->add_psk == NULL) {
7050 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
7051 if (wpa_s->global->add_psk == NULL)
7052 return;
7053 }
7054 p = wpa_s->global->add_psk;
7055 if (p2p_dev_addr) {
7056 p->p2p = 1;
7057 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7058 } else {
7059 p->p2p = 0;
7060 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7061 }
7062 os_memcpy(p->psk, psk, psk_len);
7063 return;
7064 }
7065
7066 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
7067 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
7068 return;
7069 }
7070
7071 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
7072 ssid->ssid_len);
7073 if (!persistent) {
7074 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
7075 return;
7076 }
7077
7078 p = os_zalloc(sizeof(*p));
7079 if (p == NULL)
7080 return;
7081 if (p2p_dev_addr) {
7082 p->p2p = 1;
7083 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7084 } else {
7085 p->p2p = 0;
7086 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7087 }
7088 os_memcpy(p->psk, psk, psk_len);
7089
0bceb8d6
JM		 7090 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7091 (last = dl_list_last(&persistent->psk_list,
7092 struct psk_list_entry, list))) {
01a57fe4
JM		 7093 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7094 MACSTR " (p2p=%u) to make room for a new one",
7095 MAC2STR(last->addr), last->p2p);
7096 dl_list_del(&last->list);
7097 os_free(last);
7098 }
7099
43c693c2
JM		 7100 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7101 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7102 p2p_dev_addr == NULL);
7103 if (p2p_dev_addr) {
7104 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7105 MACSTR, MAC2STR(p2p_dev_addr));
7106 } else {
7107 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7108 MAC2STR(mac_addr));
7109 }
01a57fe4
JM		 7110 dl_list_add(&persistent->psk_list, &p->list);
7111
01a57fe4
JM		 7112 if (wpa_s->parent->conf->update_config &&
7113 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7114 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
01a57fe4 7115}
f2c56602
JM		 7116
7117
7118static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7119 struct wpa_ssid *s, const u8 *addr,
7120 int iface_addr)
7121{
43c693c2 7122 int res;
f2c56602 7123
43c693c2 7124 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
2a33687e
JM		 7125 if (res > 0 && wpa_s->conf->update_config &&
7126 wpa_config_write(wpa_s->confname, wpa_s->conf))
7127 wpa_dbg(wpa_s, MSG_DEBUG,
7128 "P2P: Failed to update configuration");
f2c56602
JM		 7129}
7130
7131
7132static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7133 const u8 *peer, int iface_addr)
7134{
7135 struct hostapd_data *hapd;
7136 struct hostapd_wpa_psk *psk, *prev, *rem;
7137 struct sta_info *sta;
7138
7139 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7140 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7141 return;
7142
7143 /* Remove per-station PSK entry */
7144 hapd = wpa_s->ap_iface->bss[0];
7145 prev = NULL;
7146 psk = hapd->conf->ssid.wpa_psk;
7147 while (psk) {
7148 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7149 (!iface_addr &&
7150 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7151 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7152 MACSTR " iface_addr=%d",
7153 MAC2STR(peer), iface_addr);
7154 if (prev)
7155 prev->next = psk->next;
7156 else
7157 hapd->conf->ssid.wpa_psk = psk->next;
7158 rem = psk;
7159 psk = psk->next;
7160 os_free(rem);
7161 } else {
7162 prev = psk;
7163 psk = psk->next;
7164 }
7165 }
7166
7167 /* Disconnect from group */
7168 if (iface_addr)
7169 sta = ap_get_sta(hapd, peer);
7170 else
7171 sta = ap_get_sta_p2p(hapd, peer);
7172 if (sta) {
7173 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7174 " (iface_addr=%d) from group",
7175 MAC2STR(peer), iface_addr);
7176 hostapd_drv_sta_deauth(hapd, sta->addr,
7177 WLAN_REASON_DEAUTH_LEAVING);
7178 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7179 }
7180}
7181
7182
7183void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7184 int iface_addr)
7185{
7186 struct wpa_ssid *s;
7187 struct wpa_supplicant *w;
7188
7189 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7190
7191 /* Remove from any persistent group */
7192 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
7193 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7194 continue;
7195 if (!iface_addr)
7196 wpas_remove_persistent_peer(wpa_s, s, peer, 0);
7197 wpas_p2p_remove_psk(wpa_s->parent, s, peer, iface_addr);
7198 }
7199
7200 /* Remove from any operating group */
7201 for (w = wpa_s->global->ifaces; w; w = w->next)
7202 wpas_p2p_remove_client_go(w, peer, iface_addr);
7203}
5bf9a6c8
JM		 7204
7205
813e7b36
JM		 7206static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7207{
7208 struct wpa_supplicant *wpa_s = eloop_ctx;
7209 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7210}
7211
7212
8567866d
JJ		 7213static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7214{
7215 struct wpa_supplicant *wpa_s = eloop_ctx;
7216
7217 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7218 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7219}
7220
7221
7222int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7223 struct wpa_ssid *ssid)
7224{
7225 struct wpa_supplicant *iface;
7226
7227 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7228 if (!iface->current_ssid ||
7229 iface->current_ssid->frequency == freq ||
7230 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7231 !iface->current_ssid->p2p_group))
7232 continue;
7233
7234 /* Remove the connection with least priority */
7235 if (!wpas_is_p2p_prioritized(iface)) {
7236 /* STA connection has priority over existing
7237 * P2P connection, so remove the interface. */
7238 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7239 eloop_register_timeout(0, 0,
7240 wpas_p2p_group_freq_conflict,
7241 iface, NULL);
7242 /* If connection in progress is P2P connection, do not
7243 * proceed for the connection. */
7244 if (wpa_s == iface)
7245 return -1;
7246 else
7247 return 0;
7248 } else {
7249 /* P2P connection has priority, disable the STA network
7250 */
7251 wpa_supplicant_disable_network(wpa_s->global->ifaces,
7252 ssid);
7253 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7254 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7255 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7256 ETH_ALEN);
7257 /* If P2P connection is in progress, continue
7258 * connecting...*/
7259 if (wpa_s == iface)
7260 return 0;
7261 else
7262 return -1;
7263 }
7264 }
7265
7266 return 0;
7267}
7268
7269
5bf9a6c8
JM		 7270int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7271{
7272 struct wpa_ssid *ssid = wpa_s->current_ssid;
7273
7274 if (ssid == NULL || !ssid->p2p_group)
7275 return 0;
7276
7277 if (wpa_s->p2p_last_4way_hs_fail &&
7278 wpa_s->p2p_last_4way_hs_fail == ssid) {
7279 u8 go_dev_addr[ETH_ALEN];
7280 struct wpa_ssid *persistent;
7281
7282 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7283 ssid->ssid,
7284 ssid->ssid_len) <= 0) {
7285 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7286 goto disconnect;
7287 }
7288
7289 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7290 MACSTR, MAC2STR(go_dev_addr));
7291 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7292 ssid->ssid,
7293 ssid->ssid_len);
7294 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7295 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7296 goto disconnect;
7297 }
7298 wpa_msg_global(wpa_s->parent, MSG_INFO,
7299 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7300 persistent->id);
7301 disconnect:
7302 wpa_s->p2p_last_4way_hs_fail = NULL;
813e7b36
JM		 7303 /*
7304 * Remove the group from a timeout to avoid issues with caller
7305 * continuing to use the interface if this is on a P2P group
7306 * interface.
7307 */
7308 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7309 wpa_s, NULL);
5bf9a6c8
JM		 7310 return 1;
7311 }
7312
7313 wpa_s->p2p_last_4way_hs_fail = ssid;
7314 return 0;
7315}
93588780
JM		 7316
7317
7318#ifdef CONFIG_WPS_NFC
7319
7320static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7321 struct wpabuf *p2p)
7322{
7323 struct wpabuf *ret;
59b45d1a 7324 size_t wsc_len;
93588780
JM		 7325
7326 if (p2p == NULL) {
7327 wpabuf_free(wsc);
7328 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7329 return NULL;
7330 }
7331
59b45d1a
JM		 7332 wsc_len = wsc ? wpabuf_len(wsc) : 0;
7333 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
93588780
JM		 7334 if (ret == NULL) {
7335 wpabuf_free(wsc);
7336 wpabuf_free(p2p);
7337 return NULL;
7338 }
7339
59b45d1a
JM		 7340 wpabuf_put_be16(ret, wsc_len);
7341 if (wsc)
7342 wpabuf_put_buf(ret, wsc);
93588780
JM		 7343 wpabuf_put_be16(ret, wpabuf_len(p2p));
7344 wpabuf_put_buf(ret, p2p);
7345
7346 wpabuf_free(wsc);
7347 wpabuf_free(p2p);
7348 wpa_hexdump_buf(MSG_DEBUG,
7349 "P2P: Generated NFC connection handover message", ret);
7350
7351 if (ndef && ret) {
7352 struct wpabuf *tmp;
7353 tmp = ndef_build_p2p(ret);
7354 wpabuf_free(ret);
7355 if (tmp == NULL) {
7356 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7357 return NULL;
7358 }
7359 ret = tmp;
7360 }
7361
7362 return ret;
7363}
7364
7365
abe44e3c
JM		 7366static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7367 struct wpa_ssid **ssid, u8 *go_dev_addr)
59b45d1a
JM		 7368{
7369 struct wpa_supplicant *iface;
7370
abe44e3c
JM		 7371 if (go_dev_addr)
7372 os_memset(go_dev_addr, 0, ETH_ALEN);
7373 if (ssid)
7374 *ssid = NULL;
59b45d1a
JM		 7375 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7376 if (iface->wpa_state < WPA_ASSOCIATING ||
7377 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7378 !iface->current_ssid->p2p_group ||
7379 iface->current_ssid->mode != WPAS_MODE_INFRA)
7380 continue;
abe44e3c
JM		 7381 if (ssid)
7382 *ssid = iface->current_ssid;
7383 if (go_dev_addr)
7384 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
59b45d1a
JM		 7385 return iface->assoc_freq;
7386 }
7387 return 0;
7388}
7389
7390
93588780
JM		 7391struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
7392 int ndef)
7393{
7394 struct wpabuf *wsc, *p2p;
abe44e3c
JM		 7395 struct wpa_ssid *ssid;
7396 u8 go_dev_addr[ETH_ALEN];
7397 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
93588780
JM		 7398
7399 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
7400 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
7401 return NULL;
7402 }
7403
7404 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7405 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7406 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
7407 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
7408 return NULL;
7409 }
7410
59b45d1a
JM		 7411 if (cli_freq == 0) {
7412 wsc = wps_build_nfc_handover_req_p2p(
7413 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
7414 } else
7415 wsc = NULL;
abe44e3c
JM		 7416 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
7417 go_dev_addr, ssid ? ssid->ssid : NULL,
7418 ssid ? ssid->ssid_len : 0);
93588780
JM		 7419
7420 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7421}
7422
7423
7424struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
7425 int ndef, int tag)
7426{
7427 struct wpabuf *wsc, *p2p;
abe44e3c
JM		 7428 struct wpa_ssid *ssid;
7429 u8 go_dev_addr[ETH_ALEN];
7430 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
93588780
JM		 7431
7432 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7433 return NULL;
7434
7435 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7436 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7437 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7438 return NULL;
7439
59b45d1a
JM		 7440 if (cli_freq == 0) {
7441 wsc = wps_build_nfc_handover_sel_p2p(
7442 wpa_s->parent->wps,
7443 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
7444 DEV_PW_NFC_CONNECTION_HANDOVER,
7445 wpa_s->conf->wps_nfc_dh_pubkey,
7446 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
7447 } else
7448 wsc = NULL;
abe44e3c
JM		 7449 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
7450 go_dev_addr, ssid ? ssid->ssid : NULL,
7451 ssid ? ssid->ssid_len : 0);
93588780
JM		 7452
7453 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7454}
7455
db6ae69e
JM		 7456
7457static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
7458 struct p2p_nfc_params *params)
7459{
7460 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
23318bea
JM		 7461 "connection handover (freq=%d)",
7462 params->go_freq);
7463
7464 if (params->go_freq && params->go_ssid_len) {
7465 wpa_s->p2p_wps_method = WPS_NFC;
7466 wpa_s->pending_join_wps_method = WPS_NFC;
7467 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
7468 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
7469 ETH_ALEN);
7470 return wpas_p2p_join_start(wpa_s, params->go_freq,
7471 params->go_ssid,
7472 params->go_ssid_len);
7473 }
7474
db6ae69e
JM		 7475 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7476 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
23318bea 7477 params->go_freq, -1, 0, 1, 1);
db6ae69e
JM		 7478}
7479
7480
7481static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8e9f53c3 7482 struct p2p_nfc_params *params, int tag)
db6ae69e 7483{
8e9f53c3
JM		 7484 int res, persistent;
7485 struct wpa_ssid *ssid;
7486
db6ae69e
JM		 7487 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
7488 "connection handover");
7489 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8e9f53c3 7490 ssid = wpa_s->current_ssid;
db6ae69e
JM		 7491 if (ssid == NULL)
7492 continue;
7493 if (ssid->mode != WPAS_MODE_P2P_GO)
7494 continue;
7495 if (wpa_s->ap_iface == NULL)
7496 continue;
7497 break;
7498 }
7499 if (wpa_s == NULL) {
7500 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
7501 return -1;
7502 }
7503
7504 if (wpa_s->parent->p2p_oob_dev_pw_id !=
7505 DEV_PW_NFC_CONNECTION_HANDOVER &&
7506 !wpa_s->parent->p2p_oob_dev_pw) {
7507 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
7508 return -1;
7509 }
8e9f53c3 7510 res = wpas_ap_wps_add_nfc_pw(
db6ae69e
JM		 7511 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
7512 wpa_s->parent->p2p_oob_dev_pw,
7513 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
7514 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8e9f53c3
JM		 7515 if (res)
7516 return res;
7517
7518 if (!tag) {
7519 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
7520 return 0;
7521 }
7522
7523 if (!params->peer ||
7524 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
7525 return 0;
7526
7527 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
7528 " to join", MAC2STR(params->peer->p2p_device_addr));
7529
7530 wpa_s->global->p2p_invite_group = wpa_s;
7531 persistent = ssid->p2p_persistent_group &&
7532 wpas_p2p_get_persistent(wpa_s->parent,
7533 params->peer->p2p_device_addr,
7534 ssid->ssid, ssid->ssid_len);
7535 wpa_s->parent->pending_invite_ssid_id = -1;
7536
7537 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
7538 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
7539 ssid->ssid, ssid->ssid_len, ssid->frequency,
7540 wpa_s->global->p2p_dev_addr, persistent, 0,
7541 wpa_s->parent->p2p_oob_dev_pw_id);
db6ae69e
JM		 7542}
7543
7544
7545static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
b56f6c88
JM		 7546 struct p2p_nfc_params *params,
7547 int forced_freq)
db6ae69e
JM		 7548{
7549 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
7550 "connection handover");
7551 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7552 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
b56f6c88 7553 forced_freq, -1, 0, 1, 1);
db6ae69e
JM		 7554}
7555
7556
7557static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
b56f6c88
JM		 7558 struct p2p_nfc_params *params,
7559 int forced_freq)
db6ae69e
JM		 7560{
7561 int res;
7562
7563 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
7564 "connection handover");
7565 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7566 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
b56f6c88 7567 forced_freq, -1, 0, 1, 1);
db6ae69e
JM		 7568 if (res)
7569 return res;
7570
7571 res = wpas_p2p_listen(wpa_s, 60);
7572 if (res) {
7573 p2p_unauthorize(wpa_s->global->p2p,
7574 params->peer->p2p_device_addr);
7575 }
7576
7577 return res;
7578}
7579
7580
7581static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
7582 const struct wpabuf *data,
b56f6c88 7583 int sel, int tag, int forced_freq)
db6ae69e
JM		 7584{
7585 const u8 *pos, *end;
7586 u16 len, id;
7587 struct p2p_nfc_params params;
7588 int res;
7589
7590 os_memset(&params, 0, sizeof(params));
7591 params.sel = sel;
7592
7593 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
7594
7595 pos = wpabuf_head(data);
7596 end = pos + wpabuf_len(data);
7597
7598 if (end - pos < 2) {
7599 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
7600 "attributes");
7601 return -1;
7602 }
7603 len = WPA_GET_BE16(pos);
7604 pos += 2;
7605 if (pos + len > end) {
7606 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
7607 "attributes");
7608 return -1;
7609 }
7610 params.wsc_attr = pos;
7611 params.wsc_len = len;
7612 pos += len;
7613
7614 if (end - pos < 2) {
7615 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
7616 "attributes");
7617 return -1;
7618 }
7619 len = WPA_GET_BE16(pos);
7620 pos += 2;
7621 if (pos + len > end) {
7622 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
7623 "attributes");
7624 return -1;
7625 }
7626 params.p2p_attr = pos;
7627 params.p2p_len = len;
7628 pos += len;
7629
7630 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
7631 params.wsc_attr, params.wsc_len);
7632 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
7633 params.p2p_attr, params.p2p_len);
7634 if (pos < end) {
7635 wpa_hexdump(MSG_DEBUG,
7636 "P2P: Ignored extra data after P2P attributes",
7637 pos, end - pos);
7638 }
7639
7640 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, &params);
7641 if (res)
7642 return res;
7643
74df9ecd
JM		 7644 if (params.next_step == NO_ACTION)
7645 return 0;
7646
7647 if (params.next_step == BOTH_GO) {
7648 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
7649 MAC2STR(params.peer->p2p_device_addr));
7650 return 0;
7651 }
7652
59b45d1a 7653 if (params.next_step == PEER_CLIENT) {
abe44e3c
JM		 7654 if (!is_zero_ether_addr(params.go_dev_addr)) {
7655 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7656 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
7657 " ssid=\"%s\"",
7658 MAC2STR(params.peer->p2p_device_addr),
7659 params.go_freq,
7660 MAC2STR(params.go_dev_addr),
7661 wpa_ssid_txt(params.go_ssid,
7662 params.go_ssid_len));
7663 } else {
7664 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7665 "peer=" MACSTR " freq=%d",
7666 MAC2STR(params.peer->p2p_device_addr),
7667 params.go_freq);
7668 }
59b45d1a
JM		 7669 return 0;
7670 }
7671
abe44e3c 7672 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
59b45d1a
JM		 7673 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
7674 MACSTR, MAC2STR(params.peer->p2p_device_addr));
7675 return 0;
7676 }
7677
db6ae69e
JM		 7678 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7679 wpa_s->p2p_oob_dev_pw = NULL;
7680
7681 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
7682 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
7683 "received");
7684 return -1;
7685 }
7686
7687 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
7688 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
7689 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
7690 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7691 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
7692 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7693 wpa_s->p2p_peer_oob_pk_hash_known = 1;
7694
7695 if (tag) {
7696 if (id < 0x10) {
7697 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
7698 "peer OOB Device Password Id %u", id);
7699 return -1;
7700 }
7701 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
7702 "Device Password Id %u", id);
7703 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
7704 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7705 params.oob_dev_pw_len -
7706 WPS_OOB_PUBKEY_HASH_LEN - 2);
7707 wpa_s->p2p_oob_dev_pw_id = id;
7708 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
7709 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7710 params.oob_dev_pw_len -
7711 WPS_OOB_PUBKEY_HASH_LEN - 2);
7712 if (wpa_s->p2p_oob_dev_pw == NULL)
7713 return -1;
7714
7715 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7716 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7717 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7718 return -1;
7719 } else {
7720 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
7721 "without Device Password");
7722 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
7723 }
7724
7725 switch (params.next_step) {
7726 case NO_ACTION:
74df9ecd 7727 case BOTH_GO:
59b45d1a 7728 case PEER_CLIENT:
74df9ecd 7729 /* already covered above */
db6ae69e
JM		 7730 return 0;
7731 case JOIN_GROUP:
7732 return wpas_p2p_nfc_join_group(wpa_s, &params);
7733 case AUTH_JOIN:
8e9f53c3 7734 return wpas_p2p_nfc_auth_join(wpa_s, &params, tag);
db6ae69e 7735 case INIT_GO_NEG:
b56f6c88 7736 return wpas_p2p_nfc_init_go_neg(wpa_s, &params, forced_freq);
db6ae69e
JM		 7737 case RESP_GO_NEG:
7738 /* TODO: use own OOB Dev Pw */
b56f6c88 7739 return wpas_p2p_nfc_resp_go_neg(wpa_s, &params, forced_freq);
db6ae69e
JM		 7740 }
7741
7742 return -1;
7743}
7744
7745
dd37a938 7746int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
b56f6c88 7747 const struct wpabuf *data, int forced_freq)
dd37a938
JM		 7748{
7749 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7750 return -1;
7751
b56f6c88 7752 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
dd37a938
JM		 7753}
7754
7755
db6ae69e
JM		 7756int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
7757 const struct wpabuf *req,
b56f6c88 7758 const struct wpabuf *sel, int forced_freq)
db6ae69e
JM		 7759{
7760 struct wpabuf *tmp;
7761 int ret;
7762
7763 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7764 return -1;
7765
7766 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
7767
7768 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
7769 wpabuf_head(req), wpabuf_len(req));
7770 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
7771 wpabuf_head(sel), wpabuf_len(sel));
b56f6c88
JM		 7772 if (forced_freq)
7773 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
db6ae69e
JM		 7774 tmp = ndef_parse_p2p(init ? sel : req);
7775 if (tmp == NULL) {
7776 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
7777 return -1;
7778 }
7779
b56f6c88
JM		 7780 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
7781 forced_freq);
db6ae69e
JM		 7782 wpabuf_free(tmp);
7783
7784 return ret;
7785}
7786
c4f87a70
JM		 7787
7788int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
7789{
7790 const u8 *if_addr;
7791 int go_intent = wpa_s->conf->p2p_go_intent;
dd876771 7792 struct wpa_supplicant *iface;
c4f87a70
JM		 7793
7794 if (wpa_s->global->p2p == NULL)
7795 return -1;
7796
7797 if (!enabled) {
dd876771
JM		 7798 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
7799 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7800 {
7801 if (!iface->ap_iface)
7802 continue;
7803 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
7804 }
c4f87a70
JM		 7805 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
7806 0, NULL);
7807 if (wpa_s->p2p_nfc_tag_enabled)
7808 wpas_p2p_remove_pending_group_interface(wpa_s);
7809 wpa_s->p2p_nfc_tag_enabled = 0;
7810 return 0;
7811 }
7812
7813 if (wpa_s->global->p2p_disabled)
7814 return -1;
7815
7816 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
7817 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
7818 wpa_s->conf->wps_nfc_dev_pw == NULL ||
7819 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
7820 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
7821 "to allow static handover cases");
7822 return -1;
7823 }
7824
dd876771
JM		 7825 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
7826
c4f87a70
JM		 7827 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
7828 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7829 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
7830 if (wpa_s->p2p_oob_dev_pw == NULL)
7831 return -1;
7832 wpa_s->p2p_peer_oob_pk_hash_known = 0;
7833
67d39cfb
MB		 7834 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
7835 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
7836 /*
7837 * P2P Group Interface present and the command came on group
7838 * interface, so enable the token for the current interface.
7839 */
7840 wpa_s->create_p2p_iface = 0;
7841 } else {
7842 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
7843 }
c4f87a70
JM		 7844
7845 if (wpa_s->create_p2p_iface) {
7846 enum wpa_driver_if_type iftype;
7847 /* Prepare to add a new interface for the group */
7848 iftype = WPA_IF_P2P_GROUP;
7849 if (go_intent == 15)
7850 iftype = WPA_IF_P2P_GO;
7851 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
7852 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
7853 "interface for the group");
7854 return -1;
7855 }
7856
7857 if_addr = wpa_s->pending_interface_addr;
7858 } else
7859 if_addr = wpa_s->own_addr;
7860
7861 wpa_s->p2p_nfc_tag_enabled = enabled;
7862
dd876771
JM		 7863 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7864 struct hostapd_data *hapd;
7865 if (iface->ap_iface == NULL)
7866 continue;
7867 hapd = iface->ap_iface->bss[0];
7868 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
7869 hapd->conf->wps_nfc_dh_pubkey =
7870 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
7871 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
7872 hapd->conf->wps_nfc_dh_privkey =
7873 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
7874 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
7875 hapd->conf->wps_nfc_dev_pw =
7876 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
7877 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
7878
7879 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
7880 wpa_dbg(iface, MSG_DEBUG,
7881 "P2P: Failed to enable NFC Tag for GO");
7882 }
7883 }
c4f87a70
JM		 7884 p2p_set_authorized_oob_dev_pw_id(
7885 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
7886 if_addr);
7887
7888 return 0;
7889}
7890
93588780 7891#endif /* CONFIG_WPS_NFC */
e3bd6e9d
IP		 7892
7893
7894static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
7895 struct wpa_used_freq_data *freqs,
7896 unsigned int num)
7897{
7898 u8 curr_chan, cand, chan;
7899 unsigned int i;
7900
7901 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
7902 for (i = 0, cand = 0; i < num; i++) {
7903 ieee80211_freq_to_chan(freqs[i].freq, &chan);
7904 if (curr_chan == chan) {
7905 cand = 0;
7906 break;
7907 }
7908
7909 if (chan == 1 || chan == 6 || chan == 11)
7910 cand = chan;
7911 }
7912
7913 if (cand) {
7914 wpa_dbg(wpa_s, MSG_DEBUG,
7915 "P2P: Update Listen channel to %u baased on operating channel",
7916 cand);
7917 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
7918 }
7919}
7920
7921
7922void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
7923{
7924 struct wpa_used_freq_data *freqs;
7925 unsigned int num = wpa_s->num_multichan_concurrent;
7926
7927 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7928 return;
7929
7930 /*
7931 * If possible, optimize the Listen channel to be a channel that is
7932 * already used by one of the other interfaces.
7933 */
7934 if (!wpa_s->conf->p2p_optimize_listen_chan)
7935 return;
7936
7937 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
7938 return;
7939
7940 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7941 if (!freqs)
7942 return;
7943
7944 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7945
7946 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7947 os_free(freqs);
7948}
bd10d938
JM		 7949
7950
7951void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
7952{
7953 if (wpa_s == wpa_s->parent)
7954 wpas_p2p_group_remove(wpa_s, "*");
7955 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
7956 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
7957 "the management interface is being removed");
7958 wpas_p2p_deinit_global(wpa_s->global);
7959 }
7960}
7961
7962
7963void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
7964{
7965 if (wpa_s->ap_iface->bss)
7966 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
7967 wpas_p2p_group_deinit(wpa_s);
7968}
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