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PNO: Send Probe Request frames only for hidden SSIDs
[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;
206e1f42 289 size_t ielen;
1b5d4714 290 u8 *n;
b22128ef 291
9526fd29
JM		 292 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
293 return -1;
294
1b5d4714
JM		 295 if (wpa_s->p2p_scan_work) {
296 wpa_dbg(wpa_s, MSG_INFO, "P2P: Reject scan trigger since one is already pending");
297 return -1;
99fcd404
JM		 298 }
299
1b5d4714
JM		 300 params = os_zalloc(sizeof(*params));
301 if (params == NULL)
302 return -1;
b22128ef
JM		 303
304 /* P2P Wildcard SSID */
1b5d4714
JM		 305 params->num_ssids = 1;
306 n = os_malloc(P2P_WILDCARD_SSID_LEN);
307 if (n == NULL)
308 goto fail;
309 os_memcpy(n, P2P_WILDCARD_SSID, P2P_WILDCARD_SSID_LEN);
310 params->ssids[0].ssid = n;
311 params->ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
b22128ef
JM		 312
313 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 314 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
315 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
046ef4aa 316 num_req_dev_types, req_dev_types);
b22128ef 317 if (wps_ie == NULL)
1b5d4714 318 goto fail;
b22128ef 319
206e1f42
JM		 320 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
321 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
b22128ef
JM		 322 if (ies == NULL) {
323 wpabuf_free(wps_ie);
1b5d4714 324 goto fail;
b22128ef
JM		 325 }
326 wpabuf_put_buf(ies, wps_ie);
327 wpabuf_free(wps_ie);
328
6d92fa6e 329 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
b22128ef 330
1b5d4714
JM		 331 params->p2p_probe = 1;
332 n = os_malloc(wpabuf_len(ies));
333 if (n == NULL) {
334 wpabuf_free(ies);
335 goto fail;
336 }
337 os_memcpy(n, wpabuf_head(ies), wpabuf_len(ies));
338 params->extra_ies = n;
339 params->extra_ies_len = wpabuf_len(ies);
340 wpabuf_free(ies);
b22128ef
JM		 341
342 switch (type) {
343 case P2P_SCAN_SOCIAL:
1b5d4714
JM		 344 params->freqs = os_malloc(4 * sizeof(int));
345 if (params->freqs == NULL)
346 goto fail;
347 params->freqs[0] = 2412;
348 params->freqs[1] = 2437;
349 params->freqs[2] = 2462;
350 params->freqs[3] = 0;
b22128ef
JM		 351 break;
352 case P2P_SCAN_FULL:
353 break;
b22128ef 354 case P2P_SCAN_SOCIAL_PLUS_ONE:
1b5d4714
JM		 355 params->freqs = os_malloc(5 * sizeof(int));
356 if (params->freqs == NULL)
357 goto fail;
358 params->freqs[0] = 2412;
359 params->freqs[1] = 2437;
360 params->freqs[2] = 2462;
361 params->freqs[3] = freq;
362 params->freqs[4] = 0;
b22128ef
JM		 363 break;
364 }
365
b3253ebb 366 radio_remove_works(wpa_s, "p2p-scan", 0);
1b5d4714
JM		 367 if (radio_add_work(wpa_s, 0, "p2p-scan", 0, wpas_p2p_trigger_scan_cb,
368 params) < 0)
369 goto fail;
370 return 0;
0c96fd6d 371
1b5d4714
JM		 372fail:
373 wpa_scan_free_params(params);
374 return -1;
b22128ef
JM		 375}
376
377
b22128ef
JM		 378static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
379{
380 switch (p2p_group_interface) {
381 case P2P_GROUP_INTERFACE_PENDING:
382 return WPA_IF_P2P_GROUP;
383 case P2P_GROUP_INTERFACE_GO:
384 return WPA_IF_P2P_GO;
385 case P2P_GROUP_INTERFACE_CLIENT:
386 return WPA_IF_P2P_CLIENT;
387 }
388
389 return WPA_IF_P2P_GROUP;
390}
391
392
6c0da49f
JM		 393static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
394 const u8 *ssid,
395 size_t ssid_len, int *go)
396{
397 struct wpa_ssid *s;
398
399 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
400 for (s = wpa_s->conf->ssid; s; s = s->next) {
401 if (s->disabled != 0 || !s->p2p_group ||
402 s->ssid_len != ssid_len ||
403 os_memcmp(ssid, s->ssid, ssid_len) != 0)
404 continue;
405 if (s->mode == WPAS_MODE_P2P_GO &&
406 s != wpa_s->current_ssid)
407 continue;
408 if (go)
409 *go = s->mode == WPAS_MODE_P2P_GO;
410 return wpa_s;
411 }
412 }
413
414 return NULL;
415}
416
417
8dba4aef
JM		 418static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
419 enum p2p_group_removal_reason removal_reason)
b22128ef
JM		 420{
421 struct wpa_ssid *ssid;
422 char *gtype;
3071e181
JM		 423 const char *reason;
424
b22128ef
JM		 425 ssid = wpa_s->current_ssid;
426 if (ssid == NULL) {
427 /*
428 * The current SSID was not known, but there may still be a
0c802384
JM		 429 * pending P2P group interface waiting for provisioning or a
430 * P2P group that is trying to reconnect.
b22128ef
JM		 431 */
432 ssid = wpa_s->conf->ssid;
433 while (ssid) {
6d22a377 434 if (ssid->p2p_group && ssid->disabled != 2)
b22128ef
JM		 435 break;
436 ssid = ssid->next;
437 }
6f1ca696
JM		 438 if (ssid == NULL &&
439 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
440 {
30ee7692
MN		 441 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
442 "not found");
443 return -1;
444 }
b22128ef
JM		 445 }
446 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
447 gtype = "GO";
448 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
449 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
450 wpa_s->reassociate = 0;
451 wpa_s->disconnected = 1;
452 wpa_supplicant_deauthenticate(wpa_s,
453 WLAN_REASON_DEAUTH_LEAVING);
454 gtype = "client";
455 } else
456 gtype = "GO";
72044390
JM		 457 if (wpa_s->cross_connect_in_use) {
458 wpa_s->cross_connect_in_use = 0;
92c4465b
JM		 459 wpa_msg_global(wpa_s->parent, MSG_INFO,
460 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
461 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390 462 }
8dba4aef 463 switch (removal_reason) {
3071e181
JM		 464 case P2P_GROUP_REMOVAL_REQUESTED:
465 reason = " reason=REQUESTED";
466 break;
8dba4aef
JM		 467 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
468 reason = " reason=FORMATION_FAILED";
469 break;
3071e181
JM		 470 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
471 reason = " reason=IDLE";
472 break;
c973f386
JM		 473 case P2P_GROUP_REMOVAL_UNAVAILABLE:
474 reason = " reason=UNAVAILABLE";
475 break;
3fc14102
JM		 476 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
477 reason = " reason=GO_ENDING_SESSION";
478 break;
5bf9a6c8
JM		 479 case P2P_GROUP_REMOVAL_PSK_FAILURE:
480 reason = " reason=PSK_FAILURE";
481 break;
8567866d
JJ		 482 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
483 reason = " reason=FREQ_CONFLICT";
484 break;
3071e181
JM		 485 default:
486 reason = "";
487 break;
488 }
8dba4aef 489 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
92c4465b
JM		 490 wpa_msg_global(wpa_s->parent, MSG_INFO,
491 P2P_EVENT_GROUP_REMOVED "%s %s%s",
492 wpa_s->ifname, gtype, reason);
aa9bb764 493 }
408af93e 494
8567866d
JJ		 495 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
496 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
dddc7045
JM		 497 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
498 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
77dfafd0 499 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
c9c77083 500 wpa_s->parent, NULL) > 0) {
77dfafd0
JM		 501 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
502 "timeout");
c9c77083
VN		 503 wpa_s->p2p_in_provisioning = 0;
504 }
a7a30b90 505
41d5ce9e
RR		 506 wpa_s->p2p_in_invitation = 0;
507
adeb4f59
JM		 508 /*
509 * Make sure wait for the first client does not remain active after the
510 * group has been removed.
511 */
512 wpa_s->global->p2p_go_wait_client.sec = 0;
513
8dba4aef 514 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
408af93e
JB		 515 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
516
b22128ef
JM		 517 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
518 struct wpa_global *global;
519 char *ifname;
520 enum wpa_driver_if_type type;
521 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
522 wpa_s->ifname);
523 global = wpa_s->global;
524 ifname = os_strdup(wpa_s->ifname);
525 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
df509539 526 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
b22128ef
JM		 527 wpa_s = global->ifaces;
528 if (wpa_s && ifname)
529 wpa_drv_if_remove(wpa_s, type, ifname);
530 os_free(ifname);
0aadd568 531 return 1;
b22128ef
JM		 532 }
533
acdd0fc8
DG		 534 if (!wpa_s->p2p_go_group_formation_completed) {
535 wpa_s->global->p2p_group_formation = NULL;
536 wpa_s->p2p_in_provisioning = 0;
537 }
538
c092d83e
JM		 539 wpa_s->show_group_started = 0;
540 os_free(wpa_s->go_params);
541 wpa_s->go_params = NULL;
542
c64e3a08
JM		 543 wpa_s->waiting_presence_resp = 0;
544
b22128ef
JM		 545 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
546 if (ssid && (ssid->p2p_group ||
547 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
548 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
549 int id = ssid->id;
20a0b03d
JM		 550 if (ssid == wpa_s->current_ssid) {
551 wpa_sm_set_config(wpa_s->wpa, NULL);
552 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
b22128ef 553 wpa_s->current_ssid = NULL;
20a0b03d 554 }
c2762e41
JS		 555 /*
556 * Networks objects created during any P2P activities are not
557 * exposed out as they might/will confuse certain non-P2P aware
558 * applications since these network objects won't behave like
559 * regular ones.
560 *
561 * Likewise, we don't send out network removed signals for such
562 * network objects.
563 */
b22128ef
JM		 564 wpa_config_remove_network(wpa_s->conf, id);
565 wpa_supplicant_clear_status(wpa_s);
433cd2ce 566 wpa_supplicant_cancel_sched_scan(wpa_s);
b22128ef
JM		 567 } else {
568 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
569 "found");
570 }
3c29244e
EP		 571 if (wpa_s->ap_iface)
572 wpa_supplicant_ap_deinit(wpa_s);
573 else
574 wpa_drv_deinit_p2p_cli(wpa_s);
30ee7692
MN		 575
576 return 0;
b22128ef
JM		 577}
578
579
580static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
581 u8 *go_dev_addr,
582 const u8 *ssid, size_t ssid_len)
583{
584 struct wpa_bss *bss;
585 const u8 *bssid;
586 struct wpabuf *p2p;
587 u8 group_capab;
588 const u8 *addr;
589
590 if (wpa_s->go_params)
591 bssid = wpa_s->go_params->peer_interface_addr;
592 else
593 bssid = wpa_s->bssid;
594
595 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
23318bea
JM		 596 if (bss == NULL && wpa_s->go_params &&
597 !is_zero_ether_addr(wpa_s->go_params->peer_device_addr))
598 bss = wpa_bss_get_p2p_dev_addr(
599 wpa_s, wpa_s->go_params->peer_device_addr);
b22128ef
JM		 600 if (bss == NULL) {
601 u8 iface_addr[ETH_ALEN];
602 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
603 iface_addr) == 0)
604 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
605 }
606 if (bss == NULL) {
607 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
608 "group is persistent - BSS " MACSTR " not found",
609 MAC2STR(bssid));
610 return 0;
611 }
612
613 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5df7414b
JM		 614 if (p2p == NULL)
615 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
616 P2P_IE_VENDOR_TYPE);
b22128ef
JM		 617 if (p2p == NULL) {
618 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
619 "group is persistent - BSS " MACSTR
620 " did not include P2P IE", MAC2STR(bssid));
621 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
622 (u8 *) (bss + 1), bss->ie_len);
623 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
624 ((u8 *) bss + 1) + bss->ie_len,
625 bss->beacon_ie_len);
626 return 0;
627 }
628
629 group_capab = p2p_get_group_capab(p2p);
630 addr = p2p_get_go_dev_addr(p2p);
631 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
632 "group_capab=0x%x", group_capab);
633 if (addr) {
634 os_memcpy(go_dev_addr, addr, ETH_ALEN);
635 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
636 MAC2STR(addr));
637 } else
638 os_memset(go_dev_addr, 0, ETH_ALEN);
639 wpabuf_free(p2p);
640
641 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
642 "go_dev_addr=" MACSTR,
643 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
644
645 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
646}
647
648
4b6baa2f
JMB		 649static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
650 struct wpa_ssid *ssid,
651 const u8 *go_dev_addr)
b22128ef
JM		 652{
653 struct wpa_ssid *s;
654 int changed = 0;
655
656 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
657 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
658 for (s = wpa_s->conf->ssid; s; s = s->next) {
659 if (s->disabled == 2 &&
660 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
661 s->ssid_len == ssid->ssid_len &&
662 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
663 break;
664 }
665
666 if (s) {
667 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
668 "entry");
669 if (ssid->passphrase && !s->passphrase)
670 changed = 1;
671 else if (ssid->passphrase && s->passphrase &&
672 os_strcmp(ssid->passphrase, s->passphrase) != 0)
673 changed = 1;
674 } else {
675 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
676 "entry");
677 changed = 1;
678 s = wpa_config_add_network(wpa_s->conf);
679 if (s == NULL)
4b6baa2f 680 return -1;
c2762e41
JS		 681
682 /*
683 * Instead of network_added we emit persistent_group_added
684 * notification. Also to keep the defense checks in
685 * persistent_group obj registration method, we set the
686 * relevant flags in s to designate it as a persistent group.
687 */
688 s->p2p_group = 1;
689 s->p2p_persistent_group = 1;
690 wpas_notify_persistent_group_added(wpa_s, s);
b22128ef
JM		 691 wpa_config_set_network_defaults(s);
692 }
693
694 s->p2p_group = 1;
695 s->p2p_persistent_group = 1;
696 s->disabled = 2;
697 s->bssid_set = 1;
698 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
699 s->mode = ssid->mode;
700 s->auth_alg = WPA_AUTH_ALG_OPEN;
701 s->key_mgmt = WPA_KEY_MGMT_PSK;
702 s->proto = WPA_PROTO_RSN;
703 s->pairwise_cipher = WPA_CIPHER_CCMP;
d1c8ac88 704 s->export_keys = 1;
b22128ef
JM		 705 if (ssid->passphrase) {
706 os_free(s->passphrase);
707 s->passphrase = os_strdup(ssid->passphrase);
708 }
709 if (ssid->psk_set) {
710 s->psk_set = 1;
711 os_memcpy(s->psk, ssid->psk, 32);
712 }
713 if (s->passphrase && !s->psk_set)
714 wpa_config_update_psk(s);
715 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
716 os_free(s->ssid);
717 s->ssid = os_malloc(ssid->ssid_len);
718 }
719 if (s->ssid) {
720 s->ssid_len = ssid->ssid_len;
721 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
722 }
01a57fe4
JM		 723 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
724 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
725 wpa_s->global->add_psk = NULL;
726 changed = 1;
727 }
b22128ef 728
b22128ef
JM		 729 if (changed && wpa_s->conf->update_config &&
730 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
731 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
732 }
4b6baa2f
JMB		 733
734 return s->id;
b22128ef
JM		 735}
736
737
fbdcfd57
JM		 738static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
739 const u8 *addr)
740{
741 struct wpa_ssid *ssid, *s;
742 u8 *n;
743 size_t i;
22316795 744 int found = 0;
fbdcfd57
JM		 745
746 ssid = wpa_s->current_ssid;
747 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
748 !ssid->p2p_persistent_group)
749 return;
750
751 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
752 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
753 continue;
754
755 if (s->ssid_len == ssid->ssid_len &&
756 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
757 break;
758 }
759
760 if (s == NULL)
761 return;
762
763 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
764 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
22316795
JM		 765 ETH_ALEN) != 0)
766 continue;
767
768 if (i == s->num_p2p_clients - 1)
769 return; /* already the most recent entry */
770
771 /* move the entry to mark it most recent */
772 os_memmove(s->p2p_client_list + i * ETH_ALEN,
773 s->p2p_client_list + (i + 1) * ETH_ALEN,
774 (s->num_p2p_clients - i - 1) * ETH_ALEN);
775 os_memcpy(s->p2p_client_list +
776 (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
777 found = 1;
778 break;
fbdcfd57
JM		 779 }
780
b4a5dfa9 781 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
22316795
JM		 782 n = os_realloc_array(s->p2p_client_list,
783 s->num_p2p_clients + 1, ETH_ALEN);
784 if (n == NULL)
785 return;
786 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
787 s->p2p_client_list = n;
788 s->num_p2p_clients++;
8931a36c 789 } else if (!found && s->p2p_client_list) {
b4a5dfa9
JM		 790 /* Not enough room for an additional entry - drop the oldest
791 * entry */
792 os_memmove(s->p2p_client_list,
793 s->p2p_client_list + ETH_ALEN,
794 (s->num_p2p_clients - 1) * ETH_ALEN);
795 os_memcpy(s->p2p_client_list +
796 (s->num_p2p_clients - 1) * ETH_ALEN,
797 addr, ETH_ALEN);
22316795 798 }
fbdcfd57 799
fbdcfd57
JM		 800 if (wpa_s->parent->conf->update_config &&
801 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
802 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
fbdcfd57
JM		 803}
804
805
b22128ef
JM		 806static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
807 int success)
808{
809 struct wpa_ssid *ssid;
810 const char *ssid_txt;
811 int client;
812 int persistent;
813 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 814 int network_id = -1;
b22128ef
JM		 815
816 /*
817 * This callback is likely called for the main interface. Update wpa_s
818 * to use the group interface if a new interface was created for the
819 * group.
820 */
821 if (wpa_s->global->p2p_group_formation)
822 wpa_s = wpa_s->global->p2p_group_formation;
41f85323
JM		 823 if (wpa_s->p2p_go_group_formation_completed) {
824 wpa_s->global->p2p_group_formation = NULL;
825 wpa_s->p2p_in_provisioning = 0;
826 }
f05cee97 827 wpa_s->p2p_in_invitation = 0;
b22128ef
JM		 828
829 if (!success) {
92c4465b
JM		 830 wpa_msg_global(wpa_s->parent, MSG_INFO,
831 P2P_EVENT_GROUP_FORMATION_FAILURE);
8dba4aef
JM		 832 wpas_p2p_group_delete(wpa_s,
833 P2P_GROUP_REMOVAL_FORMATION_FAILED);
b22128ef
JM		 834 return;
835 }
836
92c4465b
JM		 837 wpa_msg_global(wpa_s->parent, MSG_INFO,
838 P2P_EVENT_GROUP_FORMATION_SUCCESS);
b22128ef
JM		 839
840 ssid = wpa_s->current_ssid;
841 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
842 ssid->mode = WPAS_MODE_P2P_GO;
843 p2p_group_notif_formation_done(wpa_s->p2p_group);
844 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
845 }
846
847 persistent = 0;
848 if (ssid) {
849 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
850 client = ssid->mode == WPAS_MODE_INFRA;
851 if (ssid->mode == WPAS_MODE_P2P_GO) {
852 persistent = ssid->p2p_persistent_group;
d7e70476 853 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
b22128ef
JM		 854 ETH_ALEN);
855 } else
856 persistent = wpas_p2p_persistent_group(wpa_s,
857 go_dev_addr,
858 ssid->ssid,
859 ssid->ssid_len);
860 } else {
861 ssid_txt = "";
862 client = wpa_s->p2p_group_interface ==
863 P2P_GROUP_INTERFACE_CLIENT;
62c0d27e 864 os_memset(go_dev_addr, 0, ETH_ALEN);
b22128ef
JM		 865 }
866
867 wpa_s->show_group_started = 0;
868 if (client) {
869 /*
870 * Indicate event only after successfully completed 4-way
871 * handshake, i.e., when the interface is ready for data
872 * packets.
873 */
874 wpa_s->show_group_started = 1;
875 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
876 char psk[65];
877 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
92c4465b
JM		 878 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
879 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr="
880 MACSTR "%s",
881 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
882 MAC2STR(go_dev_addr),
883 persistent ? " [PERSISTENT]" : "");
72044390 884 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 885 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef 886 } else {
92c4465b
JM		 887 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
888 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
889 "go_dev_addr=" MACSTR "%s",
890 wpa_s->ifname, ssid_txt,
891 ssid ? ssid->frequency : 0,
892 ssid && ssid->passphrase ? ssid->passphrase : "",
893 MAC2STR(go_dev_addr),
894 persistent ? " [PERSISTENT]" : "");
72044390 895 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 896 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 897 }
898
899 if (persistent)
4b6baa2f
JMB		 900 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
901 ssid, go_dev_addr);
01a57fe4
JM		 902 else {
903 os_free(wpa_s->global->add_psk);
904 wpa_s->global->add_psk = NULL;
905 }
21fe9e75 906 if (network_id < 0 && ssid)
4b6baa2f 907 network_id = ssid->id;
c1c0b35f 908 if (!client) {
4b6baa2f 909 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
151ab808 910 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
c1c0b35f 911 }
b22128ef
JM		 912}
913
914
e05e1308
JM		 915struct send_action_work {
916 unsigned int freq;
917 u8 dst[ETH_ALEN];
918 u8 src[ETH_ALEN];
919 u8 bssid[ETH_ALEN];
920 size_t len;
921 unsigned int wait_time;
922 u8 buf[0];
923};
924
925
926static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
927 void *timeout_ctx)
928{
929 struct wpa_supplicant *wpa_s = eloop_ctx;
930
931 if (!wpa_s->p2p_send_action_work)
932 return;
933
934 wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
935 os_free(wpa_s->p2p_send_action_work->ctx);
936 radio_work_done(wpa_s->p2p_send_action_work);
937 wpa_s->p2p_send_action_work = NULL;
938}
939
940
24f6497c
JM		 941static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
942 unsigned int freq,
943 const u8 *dst, const u8 *src,
944 const u8 *bssid,
945 const u8 *data, size_t data_len,
946 enum offchannel_send_action_result
947 result)
534525ff 948{
24f6497c 949 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
b22128ef 950
e05e1308
JM		 951 if (wpa_s->p2p_send_action_work) {
952 struct send_action_work *awork;
953 awork = wpa_s->p2p_send_action_work->ctx;
954 if (awork->wait_time == 0) {
955 os_free(awork);
956 radio_work_done(wpa_s->p2p_send_action_work);
957 wpa_s->p2p_send_action_work = NULL;
958 } else {
959 /*
960 * In theory, this should not be needed, but number of
961 * places in the P2P code is still using non-zero wait
962 * time for the last Action frame in the sequence and
963 * some of these do not call send_action_done().
964 */
965 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
966 wpa_s, NULL);
967 eloop_register_timeout(
968 0, awork->wait_time * 1000,
969 wpas_p2p_send_action_work_timeout,
970 wpa_s, NULL);
971 }
972 }
973
9526fd29 974 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef
JM		 975 return;
976
24f6497c
JM		 977 switch (result) {
978 case OFFCHANNEL_SEND_ACTION_SUCCESS:
979 res = P2P_SEND_ACTION_SUCCESS;
980 break;
981 case OFFCHANNEL_SEND_ACTION_NO_ACK:
982 res = P2P_SEND_ACTION_NO_ACK;
983 break;
984 case OFFCHANNEL_SEND_ACTION_FAILED:
985 res = P2P_SEND_ACTION_FAILED;
986 break;
b22128ef
JM		 987 }
988
24f6497c 989 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
b22128ef 990
f63b8542
JM		 991 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
992 wpa_s->pending_pd_before_join &&
24f6497c 993 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
175171ac
JM		 994 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
995 wpa_s->p2p_fallback_to_go_neg) {
b22128ef 996 wpa_s->pending_pd_before_join = 0;
175171ac
JM		 997 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
998 "during p2p_connect-auto");
999 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
1000 return;
b22128ef
JM		 1001 }
1002}
1003
1004
e05e1308
JM		 1005static void wpas_send_action_cb(struct wpa_radio_work *work, int deinit)
1006{
1007 struct wpa_supplicant *wpa_s = work->wpa_s;
1008 struct send_action_work *awork = work->ctx;
1009
1010 if (deinit) {
b3253ebb
AO		 1011 if (work->started) {
1012 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1013 wpa_s, NULL);
1014 wpa_s->p2p_send_action_work = NULL;
1015 offchannel_send_action_done(wpa_s);
1016 }
e05e1308
JM		 1017 os_free(awork);
1018 return;
1019 }
1020
1021 if (offchannel_send_action(wpa_s, awork->freq, awork->dst, awork->src,
1022 awork->bssid, awork->buf, awork->len,
1023 awork->wait_time,
1024 wpas_p2p_send_action_tx_status, 1) < 0) {
1025 os_free(awork);
1026 radio_work_done(work);
1027 return;
1028 }
1029 wpa_s->p2p_send_action_work = work;
1030}
1031
1032
1033static int wpas_send_action_work(struct wpa_supplicant *wpa_s,
1034 unsigned int freq, const u8 *dst,
1035 const u8 *src, const u8 *bssid, const u8 *buf,
1036 size_t len, unsigned int wait_time)
1037{
1038 struct send_action_work *awork;
1039
1040 if (wpa_s->p2p_send_action_work) {
1041 wpa_printf(MSG_DEBUG, "P2P: Cannot schedule new p2p-send-action work since one is already pending");
1042 return -1;
1043 }
1044
1045 awork = os_zalloc(sizeof(*awork) + len);
1046 if (awork == NULL)
1047 return -1;
1048
1049 awork->freq = freq;
1050 os_memcpy(awork->dst, dst, ETH_ALEN);
1051 os_memcpy(awork->src, src, ETH_ALEN);
1052 os_memcpy(awork->bssid, bssid, ETH_ALEN);
1053 awork->len = len;
1054 awork->wait_time = wait_time;
1055 os_memcpy(awork->buf, buf, len);
1056
1057 if (radio_add_work(wpa_s, freq, "p2p-send-action", 0,
1058 wpas_send_action_cb, awork) < 0) {
1059 os_free(awork);
1060 return -1;
1061 }
1062
1063 return 0;
1064}
1065
1066
b22128ef
JM		 1067static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
1068 const u8 *src, const u8 *bssid, const u8 *buf,
1069 size_t len, unsigned int wait_time)
1070{
1071 struct wpa_supplicant *wpa_s = ctx;
e05e1308
JM		 1072 int listen_freq = -1, send_freq = -1;
1073
1074 if (wpa_s->p2p_listen_work)
1075 listen_freq = wpa_s->p2p_listen_work->freq;
1076 if (wpa_s->p2p_send_action_work)
1077 send_freq = wpa_s->p2p_send_action_work->freq;
1078 if (listen_freq != (int) freq && send_freq != (int) freq) {
1079 wpa_printf(MSG_DEBUG, "P2P: Schedule new radio work for Action frame TX (listen_freq=%d send_freq=%d)",
1080 listen_freq, send_freq);
1081 return wpas_send_action_work(wpa_s, freq, dst, src, bssid, buf,
1082 len, wait_time);
1083 }
1084
1085 wpa_printf(MSG_DEBUG, "P2P: Use ongoing radio work for Action frame TX");
24f6497c
JM		 1086 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
1087 wait_time,
b106173a 1088 wpas_p2p_send_action_tx_status, 1);
b22128ef
JM		 1089}
1090
1091
1092static void wpas_send_action_done(void *ctx)
1093{
1094 struct wpa_supplicant *wpa_s = ctx;
e05e1308
JM		 1095
1096 if (wpa_s->p2p_send_action_work) {
1097 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout,
1098 wpa_s, NULL);
1099 os_free(wpa_s->p2p_send_action_work->ctx);
1100 radio_work_done(wpa_s->p2p_send_action_work);
1101 wpa_s->p2p_send_action_work = NULL;
1102 }
1103
24f6497c 1104 offchannel_send_action_done(wpa_s);
b22128ef
JM		 1105}
1106
1107
1108static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
1109 struct p2p_go_neg_results *params)
1110{
1111 if (wpa_s->go_params == NULL) {
1112 wpa_s->go_params = os_malloc(sizeof(*params));
1113 if (wpa_s->go_params == NULL)
1114 return -1;
1115 }
1116 os_memcpy(wpa_s->go_params, params, sizeof(*params));
1117 return 0;
1118}
1119
1120
1121static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
1122 struct p2p_go_neg_results *res)
1123{
23318bea 1124 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR
8e9f53c3 1125 " dev_addr " MACSTR " wps_method %d",
23318bea 1126 MAC2STR(res->peer_interface_addr),
8e9f53c3 1127 MAC2STR(res->peer_device_addr), res->wps_method);
e9a7ae41
JM		 1128 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
1129 res->ssid, res->ssid_len);
b22128ef
JM		 1130 wpa_supplicant_ap_deinit(wpa_s);
1131 wpas_copy_go_neg_results(wpa_s, res);
db6ae69e 1132 if (res->wps_method == WPS_PBC) {
3b29972c 1133 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
db6ae69e
JM		 1134#ifdef CONFIG_WPS_NFC
1135 } else if (res->wps_method == WPS_NFC) {
23318bea
JM		 1136 wpas_wps_start_nfc(wpa_s, res->peer_device_addr,
1137 res->peer_interface_addr,
db6ae69e
JM		 1138 wpa_s->parent->p2p_oob_dev_pw,
1139 wpa_s->parent->p2p_oob_dev_pw_id, 1,
1140 wpa_s->parent->p2p_oob_dev_pw_id ==
1141 DEV_PW_NFC_CONNECTION_HANDOVER ?
1142 wpa_s->parent->p2p_peer_oob_pubkey_hash :
1143 NULL,
91a65018 1144 NULL, 0, 0);
db6ae69e
JM		 1145#endif /* CONFIG_WPS_NFC */
1146 } else {
3c5126a4
JM		 1147 u16 dev_pw_id = DEV_PW_DEFAULT;
1148 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
1149 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
b22128ef 1150 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
3c5126a4
JM		 1151 wpa_s->p2p_pin, 1, dev_pw_id);
1152 }
b22128ef
JM		 1153}
1154
1155
01a57fe4
JM		 1156static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
1157 struct wpa_ssid *ssid)
1158{
1159 struct wpa_ssid *persistent;
1160 struct psk_list_entry *psk;
1161 struct hostapd_data *hapd;
1162
1163 if (!wpa_s->ap_iface)
1164 return;
1165
1166 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
1167 ssid->ssid_len);
1168 if (persistent == NULL)
1169 return;
1170
1171 hapd = wpa_s->ap_iface->bss[0];
1172
1173 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
1174 list) {
1175 struct hostapd_wpa_psk *hpsk;
1176
1177 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
1178 MACSTR " psk=%d",
1179 MAC2STR(psk->addr), psk->p2p);
1180 hpsk = os_zalloc(sizeof(*hpsk));
1181 if (hpsk == NULL)
1182 break;
1183 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
1184 if (psk->p2p)
1185 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
1186 else
1187 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
1188 hpsk->next = hapd->conf->ssid.wpa_psk;
1189 hapd->conf->ssid.wpa_psk = hpsk;
1190 }
1191}
1192
1193
b22128ef
JM		 1194static void p2p_go_configured(void *ctx, void *data)
1195{
1196 struct wpa_supplicant *wpa_s = ctx;
1197 struct p2p_go_neg_results *params = data;
1198 struct wpa_ssid *ssid;
4b6baa2f 1199 int network_id = -1;
b22128ef
JM		 1200
1201 ssid = wpa_s->current_ssid;
1202 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1203 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
d1b024c9
JM		 1204 if (wpa_s->global->p2p_group_formation == wpa_s)
1205 wpa_s->global->p2p_group_formation = NULL;
bb4d4deb 1206 if (os_strlen(params->passphrase) > 0) {
92c4465b
JM		 1207 wpa_msg_global(wpa_s->parent, MSG_INFO,
1208 P2P_EVENT_GROUP_STARTED
1209 "%s GO ssid=\"%s\" freq=%d "
1210 "passphrase=\"%s\" go_dev_addr=" MACSTR
1211 "%s", wpa_s->ifname,
1212 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
1213 ssid->frequency, params->passphrase,
1214 MAC2STR(wpa_s->global->p2p_dev_addr),
1215 params->persistent_group ?
1216 " [PERSISTENT]" : "");
bb4d4deb
MH		 1217 } else {
1218 char psk[65];
1219 wpa_snprintf_hex(psk, sizeof(psk), params->psk,
1220 sizeof(params->psk));
92c4465b
JM		 1221 wpa_msg_global(wpa_s->parent, MSG_INFO,
1222 P2P_EVENT_GROUP_STARTED
1223 "%s GO ssid=\"%s\" freq=%d psk=%s "
1224 "go_dev_addr=" MACSTR "%s",
1225 wpa_s->ifname,
1226 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
1227 ssid->frequency, psk,
1228 MAC2STR(wpa_s->global->p2p_dev_addr),
1229 params->persistent_group ?
1230 " [PERSISTENT]" : "");
bb4d4deb 1231 }
4b6baa2f 1232
151ab808 1233 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
01a57fe4 1234 if (params->persistent_group) {
4b6baa2f 1235 network_id = wpas_p2p_store_persistent_group(
b22128ef 1236 wpa_s->parent, ssid,
d7e70476 1237 wpa_s->global->p2p_dev_addr);
01a57fe4
JM		 1238 wpas_p2p_add_psk_list(wpa_s, ssid);
1239 }
4b6baa2f
JMB		 1240 if (network_id < 0)
1241 network_id = ssid->id;
1242 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
72044390 1243 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 1244 wpas_p2p_set_group_idle_timeout(wpa_s);
bbc6c729
JM		 1245
1246 if (wpa_s->p2p_first_connection_timeout) {
1247 wpa_dbg(wpa_s, MSG_DEBUG,
1248 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1249 wpa_s->p2p_first_connection_timeout);
1250 wpa_s->p2p_go_group_formation_completed = 0;
1251 wpa_s->global->p2p_group_formation = wpa_s;
1252 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1253 wpa_s->parent, NULL);
1254 eloop_register_timeout(
1255 wpa_s->p2p_first_connection_timeout, 0,
1256 wpas_p2p_group_formation_timeout,
1257 wpa_s->parent, NULL);
1258 }
1259
b22128ef
JM		 1260 return;
1261 }
1262
1263 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1264 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1265 params->peer_interface_addr)) {
1266 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1267 "filtering");
1268 return;
1269 }
db6ae69e 1270 if (params->wps_method == WPS_PBC) {
d601247c 1271 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
c3daaf33 1272 params->peer_device_addr);
db6ae69e
JM		 1273#ifdef CONFIG_WPS_NFC
1274 } else if (params->wps_method == WPS_NFC) {
1275 if (wpa_s->parent->p2p_oob_dev_pw_id !=
1276 DEV_PW_NFC_CONNECTION_HANDOVER &&
1277 !wpa_s->parent->p2p_oob_dev_pw) {
1278 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
1279 return;
1280 }
1281 wpas_ap_wps_add_nfc_pw(
1282 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
1283 wpa_s->parent->p2p_oob_dev_pw,
1284 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
1285 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
1286#endif /* CONFIG_WPS_NFC */
1287 } else if (wpa_s->p2p_pin[0])
b22128ef 1288 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
c423708f 1289 wpa_s->p2p_pin, NULL, 0, 0);
b22128ef
JM		 1290 os_free(wpa_s->go_params);
1291 wpa_s->go_params = NULL;
1292}
1293
1294
1295static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1296 struct p2p_go_neg_results *params,
1297 int group_formation)
1298{
1299 struct wpa_ssid *ssid;
1300
ac06fb12
JM		 1301 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1302 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1303 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1304 "results");
b22128ef 1305 return;
ac06fb12 1306 }
b22128ef
JM		 1307
1308 ssid = wpa_config_add_network(wpa_s->conf);
ac06fb12
JM		 1309 if (ssid == NULL) {
1310 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
b22128ef 1311 return;
ac06fb12 1312 }
b22128ef 1313
a9e02d59
JM		 1314 wpa_s->show_group_started = 0;
1315
b22128ef
JM		 1316 wpa_config_set_network_defaults(ssid);
1317 ssid->temporary = 1;
1318 ssid->p2p_group = 1;
1319 ssid->p2p_persistent_group = params->persistent_group;
1320 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1321 WPAS_MODE_P2P_GO;
1322 ssid->frequency = params->freq;
7aeac985 1323 ssid->ht40 = params->ht40;
20ea1ca4 1324 ssid->vht = params->vht;
b22128ef
JM		 1325 ssid->ssid = os_zalloc(params->ssid_len + 1);
1326 if (ssid->ssid) {
1327 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1328 ssid->ssid_len = params->ssid_len;
1329 }
1330 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1331 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1332 ssid->proto = WPA_PROTO_RSN;
1333 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
bb4d4deb
MH		 1334 if (os_strlen(params->passphrase) > 0) {
1335 ssid->passphrase = os_strdup(params->passphrase);
1336 if (ssid->passphrase == NULL) {
92c4465b
JM		 1337 wpa_msg_global(wpa_s, MSG_ERROR,
1338 "P2P: Failed to copy passphrase for GO");
bb4d4deb
MH		 1339 wpa_config_remove_network(wpa_s->conf, ssid->id);
1340 return;
1341 }
1342 } else
1343 ssid->passphrase = NULL;
30c371e8
MH		 1344 ssid->psk_set = params->psk_set;
1345 if (ssid->psk_set)
1346 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
6350a148 1347 else if (ssid->passphrase)
30c371e8 1348 wpa_config_update_psk(ssid);
462a7439 1349 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
b22128ef
JM		 1350
1351 wpa_s->ap_configured_cb = p2p_go_configured;
1352 wpa_s->ap_configured_cb_ctx = wpa_s;
1353 wpa_s->ap_configured_cb_data = wpa_s->go_params;
3e66f789 1354 wpa_s->scan_req = NORMAL_SCAN_REQ;
7dcdcfd6 1355 wpa_s->connect_without_scan = ssid;
b22128ef
JM		 1356 wpa_s->reassociate = 1;
1357 wpa_s->disconnected = 0;
ac06fb12
JM		 1358 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1359 "start GO)");
b22128ef
JM		 1360 wpa_supplicant_req_scan(wpa_s, 0, 0);
1361}
1362
1363
1364static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1365 const struct wpa_supplicant *src)
1366{
1367 struct wpa_config *d;
1368 const struct wpa_config *s;
1369
1370 d = dst->conf;
1371 s = src->conf;
1372
1373#define C(n) if (s->n) d->n = os_strdup(s->n)
1374 C(device_name);
1375 C(manufacturer);
1376 C(model_name);
1377 C(model_number);
1378 C(serial_number);
b22128ef
JM		 1379 C(config_methods);
1380#undef C
3071e181 1381
2f646b6e
JB		 1382 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1383 os_memcpy(d->sec_device_type, s->sec_device_type,
1384 sizeof(d->sec_device_type));
1385 d->num_sec_device_types = s->num_sec_device_types;
1386
3071e181 1387 d->p2p_group_idle = s->p2p_group_idle;
b029bd33 1388 d->p2p_intra_bss = s->p2p_intra_bss;
acc247b2 1389 d->persistent_reconnect = s->persistent_reconnect;
f571b593 1390 d->max_num_sta = s->max_num_sta;
1298c145 1391 d->pbc_in_m1 = s->pbc_in_m1;
4342326f 1392 d->ignore_old_scan_res = s->ignore_old_scan_res;
41b1a76a 1393 d->beacon_int = s->beacon_int;
f62a3c2f 1394 d->dtim_period = s->dtim_period;
5046eb4e 1395 d->disassoc_low_ack = s->disassoc_low_ack;
f22f274b 1396 d->disable_scan_offload = s->disable_scan_offload;
86e32081
JM		 1397
1398 if (s->wps_nfc_dh_privkey && s->wps_nfc_dh_pubkey) {
1399 d->wps_nfc_dh_privkey = wpabuf_dup(s->wps_nfc_dh_privkey);
1400 d->wps_nfc_dh_pubkey = wpabuf_dup(s->wps_nfc_dh_pubkey);
1401 }
b22128ef
JM		 1402}
1403
1404
2e5ba4b6
AS		 1405static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1406 char *ifname, size_t len)
1407{
1408 char *ifname_ptr = wpa_s->ifname;
1409
1410 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1411 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1412 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1413 }
1414
1415 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1416 if (os_strlen(ifname) >= IFNAMSIZ &&
1417 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1418 /* Try to avoid going over the IFNAMSIZ length limit */
41c526f3 1419 os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
2e5ba4b6
AS		 1420 }
1421}
1422
1423
b22128ef
JM		 1424static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1425 enum wpa_driver_if_type type)
1426{
1427 char ifname[120], force_ifname[120];
1428
1429 if (wpa_s->pending_interface_name[0]) {
1430 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1431 "- skip creation of a new one");
1432 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1433 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1434 "unknown?! ifname='%s'",
1435 wpa_s->pending_interface_name);
1436 return -1;
1437 }
1438 return 0;
1439 }
1440
2e5ba4b6 1441 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
b22128ef
JM		 1442 force_ifname[0] = '\0';
1443
1444 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1445 ifname);
1446 wpa_s->p2p_group_idx++;
1447
1448 wpa_s->pending_interface_type = type;
1449 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
e17a2477 1450 wpa_s->pending_interface_addr, NULL) < 0) {
b22128ef
JM		 1451 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1452 "interface");
1453 return -1;
1454 }
1455
1456 if (force_ifname[0]) {
1457 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1458 force_ifname);
1459 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1460 sizeof(wpa_s->pending_interface_name));
1461 } else
1462 os_strlcpy(wpa_s->pending_interface_name, ifname,
1463 sizeof(wpa_s->pending_interface_name));
1464 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1465 MACSTR, wpa_s->pending_interface_name,
1466 MAC2STR(wpa_s->pending_interface_addr));
1467
1468 return 0;
1469}
1470
1471
1472static void wpas_p2p_remove_pending_group_interface(
1473 struct wpa_supplicant *wpa_s)
1474{
1475 if (!wpa_s->pending_interface_name[0] ||
1476 is_zero_ether_addr(wpa_s->pending_interface_addr))
1477 return; /* No pending virtual interface */
1478
1479 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1480 wpa_s->pending_interface_name);
1481 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1482 wpa_s->pending_interface_name);
1483 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1484 wpa_s->pending_interface_name[0] = '\0';
1485}
1486
1487
1488static struct wpa_supplicant *
1489wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1490{
1491 struct wpa_interface iface;
1492 struct wpa_supplicant *group_wpa_s;
1493
1494 if (!wpa_s->pending_interface_name[0]) {
1495 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
d75e8806
JM		 1496 if (!wpas_p2p_create_iface(wpa_s))
1497 return NULL;
1498 /*
1499 * Something has forced us to remove the pending interface; try
1500 * to create a new one and hope for the best that we will get
1501 * the same local address.
1502 */
1503 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1504 WPA_IF_P2P_CLIENT) < 0)
1505 return NULL;
b22128ef
JM		 1506 }
1507
1508 os_memset(&iface, 0, sizeof(iface));
1509 iface.ifname = wpa_s->pending_interface_name;
1510 iface.driver = wpa_s->driver->name;
78f79fe5
JM		 1511 if (wpa_s->conf->ctrl_interface == NULL &&
1512 wpa_s->parent != wpa_s &&
1513 wpa_s->p2p_mgmt &&
1514 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
1515 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
1516 else
1517 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
b22128ef
JM		 1518 iface.driver_param = wpa_s->conf->driver_param;
1519 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1520 if (group_wpa_s == NULL) {
1521 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1522 "wpa_supplicant interface");
1523 return NULL;
1524 }
1525 wpa_s->pending_interface_name[0] = '\0';
1526 group_wpa_s->parent = wpa_s;
1527 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1528 P2P_GROUP_INTERFACE_CLIENT;
1529 wpa_s->global->p2p_group_formation = group_wpa_s;
1530
1531 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1532
1533 return group_wpa_s;
1534}
1535
1536
1537static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1538 void *timeout_ctx)
1539{
1540 struct wpa_supplicant *wpa_s = eloop_ctx;
1541 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1075b295
JM		 1542 wpas_p2p_group_formation_failed(wpa_s);
1543}
1544
1545
1546void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s)
1547{
1548 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1549 wpa_s->parent, NULL);
b22128ef
JM		 1550 if (wpa_s->global->p2p)
1551 p2p_group_formation_failed(wpa_s->global->p2p);
1552 wpas_group_formation_completed(wpa_s, 0);
1553}
1554
1555
95fb2db2
JM		 1556static void wpas_p2p_grpform_fail_after_wps(struct wpa_supplicant *wpa_s)
1557{
1558 wpa_printf(MSG_DEBUG, "P2P: Reject group formation due to WPS provisioning failure");
1559 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1560 wpa_s->parent, NULL);
1561 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1562 wpa_s->parent, NULL);
1563 wpa_s->global->p2p_fail_on_wps_complete = 0;
1564}
1565
1566
b2b688d1
VKE		 1567void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
1568{
1569 if (wpa_s->global->p2p_group_formation != wpa_s)
1570 return;
1571 /* Speed up group formation timeout since this cannot succeed */
1572 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1573 wpa_s->parent, NULL);
1574 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1575 wpa_s->parent, NULL);
1576}
1577
1578
152cff6b 1579static void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
b22128ef
JM		 1580{
1581 struct wpa_supplicant *wpa_s = ctx;
1582
8eada5ca 1583 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1584 wpa_drv_cancel_remain_on_channel(wpa_s);
1585 wpa_s->off_channel_freq = 0;
07a30a66 1586 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 1587 }
1588
1589 if (res->status) {
92c4465b
JM		 1590 wpa_msg_global(wpa_s, MSG_INFO,
1591 P2P_EVENT_GO_NEG_FAILURE "status=%d",
1592 res->status);
e5a359cf 1593 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef
JM		 1594 wpas_p2p_remove_pending_group_interface(wpa_s);
1595 return;
1596 }
1597
e2308e4b
RM		 1598 if (wpa_s->p2p_go_ht40)
1599 res->ht40 = 1;
20ea1ca4
EP		 1600 if (wpa_s->p2p_go_vht)
1601 res->vht = 1;
e2308e4b 1602
8d660e04
JM		 1603 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
1604 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
1605 " wps_method=%s",
1606 res->role_go ? "GO" : "client", res->freq, res->ht40,
1607 MAC2STR(res->peer_device_addr),
1608 MAC2STR(res->peer_interface_addr),
1609 p2p_wps_method_text(res->wps_method));
e5a359cf 1610 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef 1611
23c84252
JM		 1612 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1613 struct wpa_ssid *ssid;
1614 ssid = wpa_config_get_network(wpa_s->conf,
1615 wpa_s->p2p_persistent_id);
1616 if (ssid && ssid->disabled == 2 &&
1617 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1618 size_t len = os_strlen(ssid->passphrase);
1619 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1620 "on requested persistent group");
1621 os_memcpy(res->passphrase, ssid->passphrase, len);
1622 res->passphrase[len] = '\0';
1623 }
1624 }
1625
b22128ef
JM		 1626 if (wpa_s->create_p2p_iface) {
1627 struct wpa_supplicant *group_wpa_s =
1628 wpas_p2p_init_group_interface(wpa_s, res->role_go);
1629 if (group_wpa_s == NULL) {
1630 wpas_p2p_remove_pending_group_interface(wpa_s);
5eae87a7
EA		 1631 eloop_cancel_timeout(wpas_p2p_long_listen_timeout,
1632 wpa_s, NULL);
1633 wpas_p2p_group_formation_failed(wpa_s);
b22128ef
JM		 1634 return;
1635 }
3c5126a4 1636 if (group_wpa_s != wpa_s) {
b22128ef
JM		 1637 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1638 sizeof(group_wpa_s->p2p_pin));
3c5126a4
JM		 1639 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1640 }
b22128ef
JM		 1641 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1642 wpa_s->pending_interface_name[0] = '\0';
1643 group_wpa_s->p2p_in_provisioning = 1;
1644
1645 if (res->role_go)
1646 wpas_start_wps_go(group_wpa_s, res, 1);
1647 else
1648 wpas_start_wps_enrollee(group_wpa_s, res);
1649 } else {
1650 wpa_s->p2p_in_provisioning = 1;
1651 wpa_s->global->p2p_group_formation = wpa_s;
1652
1653 if (res->role_go)
1654 wpas_start_wps_go(wpa_s, res, 1);
1655 else
1656 wpas_start_wps_enrollee(ctx, res);
1657 }
1658
1659 wpa_s->p2p_long_listen = 0;
1660 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1661
1662 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ae3e3421
JM		 1663 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1664 (res->peer_config_timeout % 100) * 10000,
1665 wpas_p2p_group_formation_timeout, wpa_s, NULL);
b22128ef
JM		 1666}
1667
1668
152cff6b 1669static void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
b22128ef
JM		 1670{
1671 struct wpa_supplicant *wpa_s = ctx;
92c4465b
JM		 1672 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1673 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
32d1bce0
KRK		 1674
1675 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
b22128ef
JM		 1676}
1677
1678
152cff6b
JM		 1679static void wpas_dev_found(void *ctx, const u8 *addr,
1680 const struct p2p_peer_info *info,
1681 int new_device)
b22128ef 1682{
5506d184 1683#ifndef CONFIG_NO_STDOUT_DEBUG
b22128ef
JM		 1684 struct wpa_supplicant *wpa_s = ctx;
1685 char devtype[WPS_DEV_TYPE_BUFSIZE];
b125c48f
DS		 1686 char *wfd_dev_info_hex = NULL;
1687
1688#ifdef CONFIG_WIFI_DISPLAY
1689 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
1690 WFD_SUBELEM_DEVICE_INFO);
1691#endif /* CONFIG_WIFI_DISPLAY */
c5db8e51 1692
92c4465b
JM		 1693 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1694 " p2p_dev_addr=" MACSTR
1695 " pri_dev_type=%s name='%s' config_methods=0x%x "
b125c48f 1696 "dev_capab=0x%x group_capab=0x%x%s%s",
92c4465b
JM		 1697 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1698 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1699 sizeof(devtype)),
b125c48f
DS		 1700 info->device_name, info->config_methods,
1701 info->dev_capab, info->group_capab,
1702 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
1703 wfd_dev_info_hex ? wfd_dev_info_hex : "");
d642d2d2 1704
b125c48f 1705 os_free(wfd_dev_info_hex);
1b56d398 1706#endif /* CONFIG_NO_STDOUT_DEBUG */
b125c48f 1707
d642d2d2 1708 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
b22128ef
JM		 1709}
1710
1711
56eeb8f2
JB		 1712static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1713{
1714 struct wpa_supplicant *wpa_s = ctx;
1715
92c4465b
JM		 1716 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1717 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
3074d8f1 1718
56eeb8f2
JB		 1719 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1720}
1721
1722
710ae9ac
JM		 1723static void wpas_find_stopped(void *ctx)
1724{
1725 struct wpa_supplicant *wpa_s = ctx;
92c4465b 1726 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
710ae9ac
JM		 1727}
1728
1729
e1d1c8e2
JM		 1730struct wpas_p2p_listen_work {
1731 unsigned int freq;
1732 unsigned int duration;
1733 struct wpabuf *probe_resp_ie;
1734};
1735
1736
1737static void wpas_p2p_listen_work_free(struct wpas_p2p_listen_work *lwork)
b22128ef 1738{
e1d1c8e2
JM		 1739 if (lwork == NULL)
1740 return;
1741 wpabuf_free(lwork->probe_resp_ie);
1742 os_free(lwork);
1743}
1744
1745
1746static void wpas_p2p_listen_work_done(struct wpa_supplicant *wpa_s)
1747{
1748 struct wpas_p2p_listen_work *lwork;
1749
1750 if (!wpa_s->p2p_listen_work)
1751 return;
1752
1753 lwork = wpa_s->p2p_listen_work->ctx;
1754 wpas_p2p_listen_work_free(lwork);
1755 radio_work_done(wpa_s->p2p_listen_work);
1756 wpa_s->p2p_listen_work = NULL;
1757}
1758
1759
1760static void wpas_start_listen_cb(struct wpa_radio_work *work, int deinit)
1761{
1762 struct wpa_supplicant *wpa_s = work->wpa_s;
1763 struct wpas_p2p_listen_work *lwork = work->ctx;
1764
1765 if (deinit) {
b3253ebb
AO		 1766 if (work->started) {
1767 wpa_s->p2p_listen_work = NULL;
1768 wpas_stop_listen(wpa_s);
1769 }
e1d1c8e2
JM		 1770 wpas_p2p_listen_work_free(lwork);
1771 return;
1772 }
b22128ef 1773
e1d1c8e2
JM		 1774 wpa_s->p2p_listen_work = work;
1775
1776 wpa_drv_set_ap_wps_ie(wpa_s, NULL, lwork->probe_resp_ie, NULL);
b22128ef
JM		 1777
1778 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1779 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1780 "report received Probe Request frames");
e1d1c8e2
JM		 1781 wpas_p2p_listen_work_done(wpa_s);
1782 return;
b22128ef
JM		 1783 }
1784
e1d1c8e2
JM		 1785 wpa_s->pending_listen_freq = lwork->freq;
1786 wpa_s->pending_listen_duration = lwork->duration;
b22128ef 1787
e1d1c8e2
JM		 1788 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq, lwork->duration) < 0)
1789 {
b22128ef
JM		 1790 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1791 "to remain on channel (%u MHz) for Listen "
e1d1c8e2
JM		 1792 "state", lwork->freq);
1793 wpas_p2p_listen_work_done(wpa_s);
b22128ef 1794 wpa_s->pending_listen_freq = 0;
e1d1c8e2 1795 return;
b22128ef 1796 }
09d660b9 1797 wpa_s->off_channel_freq = 0;
e1d1c8e2
JM		 1798 wpa_s->roc_waiting_drv_freq = lwork->freq;
1799}
1800
1801
1802static int wpas_start_listen(void *ctx, unsigned int freq,
1803 unsigned int duration,
1804 const struct wpabuf *probe_resp_ie)
1805{
1806 struct wpa_supplicant *wpa_s = ctx;
1807 struct wpas_p2p_listen_work *lwork;
1808
1809 if (wpa_s->p2p_listen_work) {
1810 wpa_printf(MSG_DEBUG, "P2P: Reject start_listen since p2p_listen_work already exists");
1811 return -1;
1812 }
1813
1814 lwork = os_zalloc(sizeof(*lwork));
1815 if (lwork == NULL)
1816 return -1;
1817 lwork->freq = freq;
1818 lwork->duration = duration;
1819 if (probe_resp_ie) {
1820 lwork->probe_resp_ie = wpabuf_dup(probe_resp_ie);
1821 if (lwork->probe_resp_ie == NULL) {
1822 wpas_p2p_listen_work_free(lwork);
1823 return -1;
1824 }
1825 }
1826
1827 if (radio_add_work(wpa_s, freq, "p2p-listen", 0, wpas_start_listen_cb,
1828 lwork) < 0) {
1829 wpas_p2p_listen_work_free(lwork);
1830 return -1;
1831 }
b22128ef
JM		 1832
1833 return 0;
1834}
1835
1836
1837static void wpas_stop_listen(void *ctx)
1838{
1839 struct wpa_supplicant *wpa_s = ctx;
6cb22d2f 1840 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1841 wpa_drv_cancel_remain_on_channel(wpa_s);
1842 wpa_s->off_channel_freq = 0;
07a30a66 1843 wpa_s->roc_waiting_drv_freq = 0;
b22128ef 1844 }
839b33ad 1845 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
b22128ef 1846 wpa_drv_probe_req_report(wpa_s, 0);
e1d1c8e2 1847 wpas_p2p_listen_work_done(wpa_s);
b22128ef
JM		 1848}
1849
1850
1851static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1852{
1853 struct wpa_supplicant *wpa_s = ctx;
9dbf53fe 1854 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
b22128ef
JM		 1855}
1856
1857
8c9ad085
JM		 1858/*
1859 * DNS Header section is used only to calculate compression pointers, so the
1860 * contents of this data does not matter, but the length needs to be reserved
1861 * in the virtual packet.
1862 */
1863#define DNS_HEADER_LEN 12
1864
1865/*
1866 * 27-octet in-memory packet from P2P specification containing two implied
1867 * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
1868 */
1869#define P2P_SD_IN_MEMORY_LEN 27
1870
1871static int p2p_sd_dns_uncompress_label(char **upos, char *uend, u8 *start,
1872 u8 **spos, const u8 *end)
1873{
1874 while (*spos < end) {
1875 u8 val = ((*spos)[0] & 0xc0) >> 6;
1876 int len;
1877
1878 if (val == 1 || val == 2) {
1879 /* These are reserved values in RFC 1035 */
1880 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1881 "sequence starting with 0x%x", val);
1882 return -1;
1883 }
1884
1885 if (val == 3) {
1886 u16 offset;
1887 u8 *spos_tmp;
1888
1889 /* Offset */
1890 if (*spos + 2 > end) {
1891 wpa_printf(MSG_DEBUG, "P2P: No room for full "
1892 "DNS offset field");
1893 return -1;
1894 }
1895
1896 offset = (((*spos)[0] & 0x3f) << 8) | (*spos)[1];
1897 if (offset >= *spos - start) {
1898 wpa_printf(MSG_DEBUG, "P2P: Invalid DNS "
1899 "pointer offset %u", offset);
1900 return -1;
1901 }
1902
1903 (*spos) += 2;
1904 spos_tmp = start + offset;
1905 return p2p_sd_dns_uncompress_label(upos, uend, start,
1906 &spos_tmp,
1907 *spos - 2);
1908 }
1909
1910 /* Label */
1911 len = (*spos)[0] & 0x3f;
1912 if (len == 0)
1913 return 0;
1914
1915 (*spos)++;
1916 if (*spos + len > end) {
1917 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1918 "sequence - no room for label with length "
1919 "%u", len);
1920 return -1;
1921 }
1922
1923 if (*upos + len + 2 > uend)
1924 return -2;
1925
1926 os_memcpy(*upos, *spos, len);
1927 *spos += len;
1928 *upos += len;
1929 (*upos)[0] = '.';
1930 (*upos)++;
1931 (*upos)[0] = '\0';
1932 }
1933
1934 return 0;
1935}
1936
1937
1938/* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
1939 * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
1940 * not large enough */
1941static int p2p_sd_dns_uncompress(char *buf, size_t buf_len, const u8 *msg,
1942 size_t msg_len, size_t offset)
1943{
1944 /* 27-octet in-memory packet from P2P specification */
1945 const char *prefix = "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
1946 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
1947 u8 *tmp, *end, *spos;
1948 char *upos, *uend;
1949 int ret = 0;
1950
1951 if (buf_len < 2)
1952 return -1;
1953 if (offset > msg_len)
1954 return -1;
1955
1956 tmp = os_malloc(DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN + msg_len);
1957 if (tmp == NULL)
1958 return -1;
1959 spos = tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN;
1960 end = spos + msg_len;
1961 spos += offset;
1962
1963 os_memset(tmp, 0, DNS_HEADER_LEN);
1964 os_memcpy(tmp + DNS_HEADER_LEN, prefix, P2P_SD_IN_MEMORY_LEN);
1965 os_memcpy(tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN, msg, msg_len);
1966
1967 upos = buf;
1968 uend = buf + buf_len;
1969
1970 ret = p2p_sd_dns_uncompress_label(&upos, uend, tmp, &spos, end);
1971 if (ret) {
1972 os_free(tmp);
1973 return ret;
1974 }
1975
1976 if (upos == buf) {
1977 upos[0] = '.';
1978 upos[1] = '\0';
1979 } else if (upos[-1] == '.')
1980 upos[-1] = '\0';
1981
1982 os_free(tmp);
1983 return 0;
1984}
1985
1986
b22128ef
JM		 1987static struct p2p_srv_bonjour *
1988wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1989 const struct wpabuf *query)
1990{
1991 struct p2p_srv_bonjour *bsrv;
1992 size_t len;
1993
1994 len = wpabuf_len(query);
1995 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1996 struct p2p_srv_bonjour, list) {
1997 if (len == wpabuf_len(bsrv->query) &&
1998 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1999 len) == 0)
2000 return bsrv;
2001 }
2002 return NULL;
2003}
2004
2005
2006static struct p2p_srv_upnp *
2007wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
2008 const char *service)
2009{
2010 struct p2p_srv_upnp *usrv;
2011
2012 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2013 struct p2p_srv_upnp, list) {
2014 if (version == usrv->version &&
2015 os_strcmp(service, usrv->service) == 0)
2016 return usrv;
2017 }
2018 return NULL;
2019}
2020
2021
2022static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
2023 u8 srv_trans_id)
2024{
2025 u8 *len_pos;
2026
2027 if (wpabuf_tailroom(resp) < 5)
2028 return;
2029
2030 /* Length (to be filled) */
2031 len_pos = wpabuf_put(resp, 2);
2032 wpabuf_put_u8(resp, srv_proto);
2033 wpabuf_put_u8(resp, srv_trans_id);
2034 /* Status Code */
2035 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
2036 /* Response Data: empty */
2037 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2038}
2039
2040
2041static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
2042 struct wpabuf *resp, u8 srv_trans_id)
2043{
2044 struct p2p_srv_bonjour *bsrv;
2045 u8 *len_pos;
2046
2047 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
2048
2049 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2050 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2051 return;
2052 }
2053
2054 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2055 struct p2p_srv_bonjour, list) {
2056 if (wpabuf_tailroom(resp) <
2057 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
2058 return;
2059 /* Length (to be filled) */
2060 len_pos = wpabuf_put(resp, 2);
2061 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2062 wpabuf_put_u8(resp, srv_trans_id);
2063 /* Status Code */
2064 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2065 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2066 wpabuf_head(bsrv->resp),
2067 wpabuf_len(bsrv->resp));
2068 /* Response Data */
2069 wpabuf_put_buf(resp, bsrv->query); /* Key */
2070 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2071 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2072 2);
2073 }
2074}
2075
2076
8c9ad085
JM		 2077static int match_bonjour_query(struct p2p_srv_bonjour *bsrv, const u8 *query,
2078 size_t query_len)
2079{
2080 char str_rx[256], str_srv[256];
2081
2082 if (query_len < 3 || wpabuf_len(bsrv->query) < 3)
2083 return 0; /* Too short to include DNS Type and Version */
2084 if (os_memcmp(query + query_len - 3,
2085 wpabuf_head_u8(bsrv->query) + wpabuf_len(bsrv->query) - 3,
2086 3) != 0)
2087 return 0; /* Mismatch in DNS Type or Version */
2088 if (query_len == wpabuf_len(bsrv->query) &&
2089 os_memcmp(query, wpabuf_head(bsrv->query), query_len - 3) == 0)
2090 return 1; /* Binary match */
2091
2092 if (p2p_sd_dns_uncompress(str_rx, sizeof(str_rx), query, query_len - 3,
2093 0))
2094 return 0; /* Failed to uncompress query */
2095 if (p2p_sd_dns_uncompress(str_srv, sizeof(str_srv),
2096 wpabuf_head(bsrv->query),
2097 wpabuf_len(bsrv->query) - 3, 0))
2098 return 0; /* Failed to uncompress service */
2099
2100 return os_strcmp(str_rx, str_srv) == 0;
2101}
2102
2103
b22128ef
JM		 2104static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
2105 struct wpabuf *resp, u8 srv_trans_id,
2106 const u8 *query, size_t query_len)
2107{
2108 struct p2p_srv_bonjour *bsrv;
b22128ef 2109 u8 *len_pos;
560f8bda 2110 int matches = 0;
b22128ef
JM		 2111
2112 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
2113 query, query_len);
2114 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2115 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
2116 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
2117 srv_trans_id);
2118 return;
2119 }
2120
2121 if (query_len == 0) {
2122 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2123 return;
2124 }
2125
560f8bda
JM		 2126 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
2127 struct p2p_srv_bonjour, list) {
8c9ad085 2128 if (!match_bonjour_query(bsrv, query, query_len))
560f8bda
JM		 2129 continue;
2130
2131 if (wpabuf_tailroom(resp) <
2132 5 + query_len + wpabuf_len(bsrv->resp))
2133 return;
2134
2135 matches++;
b22128ef 2136
560f8bda
JM		 2137 /* Length (to be filled) */
2138 len_pos = wpabuf_put(resp, 2);
2139 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2140 wpabuf_put_u8(resp, srv_trans_id);
2141
2142 /* Status Code */
2143 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2144 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
2145 wpabuf_head(bsrv->resp),
2146 wpabuf_len(bsrv->resp));
2147
2148 /* Response Data */
2149 wpabuf_put_data(resp, query, query_len); /* Key */
2150 wpabuf_put_buf(resp, bsrv->resp); /* Value */
2151
2152 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2153 }
2154
2155 if (matches == 0) {
b22128ef
JM		 2156 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
2157 "available");
560f8bda
JM		 2158 if (wpabuf_tailroom(resp) < 5)
2159 return;
2160
2161 /* Length (to be filled) */
2162 len_pos = wpabuf_put(resp, 2);
2163 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
2164 wpabuf_put_u8(resp, srv_trans_id);
b22128ef
JM		 2165
2166 /* Status Code */
bf608cad 2167 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 2168 /* Response Data: empty */
2169 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2170 2);
b22128ef 2171 }
b22128ef
JM		 2172}
2173
2174
2175static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
2176 struct wpabuf *resp, u8 srv_trans_id)
2177{
2178 struct p2p_srv_upnp *usrv;
2179 u8 *len_pos;
2180
2181 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
2182
2183 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2184 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2185 return;
2186 }
2187
2188 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2189 struct p2p_srv_upnp, list) {
2190 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
2191 return;
2192
2193 /* Length (to be filled) */
2194 len_pos = wpabuf_put(resp, 2);
2195 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2196 wpabuf_put_u8(resp, srv_trans_id);
2197
2198 /* Status Code */
2199 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2200 /* Response Data */
2201 wpabuf_put_u8(resp, usrv->version);
2202 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2203 usrv->service);
2204 wpabuf_put_str(resp, usrv->service);
2205 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
2206 2);
2207 }
2208}
2209
2210
2211static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
2212 struct wpabuf *resp, u8 srv_trans_id,
2213 const u8 *query, size_t query_len)
2214{
2215 struct p2p_srv_upnp *usrv;
2216 u8 *len_pos;
2217 u8 version;
2218 char *str;
2219 int count = 0;
2220
2221 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
2222 query, query_len);
2223
2224 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
2225 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
2226 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
2227 srv_trans_id);
2228 return;
2229 }
2230
2231 if (query_len == 0) {
2232 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2233 return;
2234 }
2235
b22128ef
JM		 2236 if (wpabuf_tailroom(resp) < 5)
2237 return;
2238
2239 /* Length (to be filled) */
2240 len_pos = wpabuf_put(resp, 2);
2241 wpabuf_put_u8(resp, P2P_SERV_UPNP);
2242 wpabuf_put_u8(resp, srv_trans_id);
2243
79222cfa
JM		 2244 version = query[0];
2245 str = os_malloc(query_len);
2246 if (str == NULL)
2247 return;
2248 os_memcpy(str, query + 1, query_len - 1);
2249 str[query_len - 1] = '\0';
2250
b22128ef
JM		 2251 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
2252 struct p2p_srv_upnp, list) {
2253 if (version != usrv->version)
2254 continue;
2255
2256 if (os_strcmp(str, "ssdp:all") != 0 &&
2257 os_strstr(usrv->service, str) == NULL)
2258 continue;
2259
2260 if (wpabuf_tailroom(resp) < 2)
2261 break;
2262 if (count == 0) {
2263 /* Status Code */
2264 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
2265 /* Response Data */
2266 wpabuf_put_u8(resp, version);
2267 } else
2268 wpabuf_put_u8(resp, ',');
2269
2270 count++;
2271
2272 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
2273 usrv->service);
2274 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
2275 break;
2276 wpabuf_put_str(resp, usrv->service);
2277 }
714b8b53 2278 os_free(str);
b22128ef
JM		 2279
2280 if (count == 0) {
2281 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
2282 "available");
2283 /* Status Code */
bf608cad 2284 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 2285 /* Response Data: empty */
2286 }
2287
2288 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2289}
2290
2291
6ffdc2f7
JM		 2292#ifdef CONFIG_WIFI_DISPLAY
2293static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
2294 struct wpabuf *resp, u8 srv_trans_id,
2295 const u8 *query, size_t query_len)
2296{
2297 const u8 *pos;
2298 u8 role;
2299 u8 *len_pos;
2300
2301 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
2302
2303 if (!wpa_s->global->wifi_display) {
2304 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
2305 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
2306 srv_trans_id);
2307 return;
2308 }
2309
2310 if (query_len < 1) {
2311 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
2312 "Role");
2313 return;
2314 }
2315
2316 if (wpabuf_tailroom(resp) < 5)
2317 return;
2318
2319 pos = query;
2320 role = *pos++;
2321 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
2322
2323 /* TODO: role specific handling */
2324
2325 /* Length (to be filled) */
2326 len_pos = wpabuf_put(resp, 2);
2327 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
2328 wpabuf_put_u8(resp, srv_trans_id);
2329 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
2330
2331 while (pos < query + query_len) {
2332 if (*pos < MAX_WFD_SUBELEMS &&
2333 wpa_s->global->wfd_subelem[*pos] &&
2334 wpabuf_tailroom(resp) >=
2335 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
2336 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
2337 "subelement %u", *pos);
2338 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
2339 }
2340 pos++;
2341 }
2342
2343 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2344}
2345#endif /* CONFIG_WIFI_DISPLAY */
2346
2347
152cff6b
JM		 2348static void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
2349 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
b22128ef
JM		 2350{
2351 struct wpa_supplicant *wpa_s = ctx;
2352 const u8 *pos = tlvs;
2353 const u8 *end = tlvs + tlvs_len;
2354 const u8 *tlv_end;
2355 u16 slen;
2356 struct wpabuf *resp;
2357 u8 srv_proto, srv_trans_id;
2358 size_t buf_len;
2359 char *buf;
2360
2361 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
2362 tlvs, tlvs_len);
2363 buf_len = 2 * tlvs_len + 1;
2364 buf = os_malloc(buf_len);
2365 if (buf) {
2366 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2367 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
2368 MACSTR " %u %u %s",
2369 freq, MAC2STR(sa), dialog_token, update_indic,
2370 buf);
2371 os_free(buf);
2372 }
2373
3b655312 2374 if (wpa_s->p2p_sd_over_ctrl_iface) {
2375 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2376 update_indic, tlvs, tlvs_len);
b22128ef 2377 return; /* to be processed by an external program */
3b655312 2378 }
b22128ef
JM		 2379
2380 resp = wpabuf_alloc(10000);
2381 if (resp == NULL)
2382 return;
2383
2384 while (pos + 1 < end) {
2385 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
2386 slen = WPA_GET_LE16(pos);
2387 pos += 2;
2388 if (pos + slen > end || slen < 2) {
2389 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
2390 "length");
2391 wpabuf_free(resp);
2392 return;
2393 }
2394 tlv_end = pos + slen;
2395
2396 srv_proto = *pos++;
2397 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2398 srv_proto);
2399 srv_trans_id = *pos++;
2400 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2401 srv_trans_id);
2402
2403 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
2404 pos, tlv_end - pos);
2405
6e6963ea
JM		 2406
2407 if (wpa_s->force_long_sd) {
2408 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
2409 "response");
2410 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2411 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2412 goto done;
2413 }
2414
b22128ef
JM		 2415 switch (srv_proto) {
2416 case P2P_SERV_ALL_SERVICES:
2417 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
2418 "for all services");
2419 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
2420 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2421 wpa_printf(MSG_DEBUG, "P2P: No service "
2422 "discovery protocols available");
2423 wpas_sd_add_proto_not_avail(
2424 resp, P2P_SERV_ALL_SERVICES,
2425 srv_trans_id);
2426 break;
2427 }
2428 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2429 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2430 break;
2431 case P2P_SERV_BONJOUR:
2432 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
2433 pos, tlv_end - pos);
2434 break;
2435 case P2P_SERV_UPNP:
2436 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
2437 pos, tlv_end - pos);
2438 break;
6ffdc2f7
JM		 2439#ifdef CONFIG_WIFI_DISPLAY
2440 case P2P_SERV_WIFI_DISPLAY:
2441 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
2442 pos, tlv_end - pos);
2443 break;
2444#endif /* CONFIG_WIFI_DISPLAY */
b22128ef
JM		 2445 default:
2446 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
2447 "protocol %u", srv_proto);
2448 wpas_sd_add_proto_not_avail(resp, srv_proto,
2449 srv_trans_id);
2450 break;
2451 }
2452
2453 pos = tlv_end;
2454 }
2455
6e6963ea 2456done:
e1653cac
KRK		 2457 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2458 update_indic, tlvs, tlvs_len);
2459
b22128ef
JM		 2460 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
2461
2462 wpabuf_free(resp);
2463}
2464
2465
152cff6b
JM		 2466static void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
2467 const u8 *tlvs, size_t tlvs_len)
b22128ef
JM		 2468{
2469 struct wpa_supplicant *wpa_s = ctx;
2470 const u8 *pos = tlvs;
2471 const u8 *end = tlvs + tlvs_len;
2472 const u8 *tlv_end;
2473 u16 slen;
2474 size_t buf_len;
2475 char *buf;
2476
2477 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
2478 tlvs, tlvs_len);
18708aad
JM		 2479 if (tlvs_len > 1500) {
2480 /* TODO: better way for handling this */
2481 wpa_msg_ctrl(wpa_s, MSG_INFO,
2482 P2P_EVENT_SERV_DISC_RESP MACSTR
2483 " %u <long response: %u bytes>",
2484 MAC2STR(sa), update_indic,
2485 (unsigned int) tlvs_len);
2486 } else {
2487 buf_len = 2 * tlvs_len + 1;
2488 buf = os_malloc(buf_len);
2489 if (buf) {
2490 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2491 wpa_msg_ctrl(wpa_s, MSG_INFO,
2492 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
2493 MAC2STR(sa), update_indic, buf);
2494 os_free(buf);
2495 }
b22128ef
JM		 2496 }
2497
2498 while (pos < end) {
2499 u8 srv_proto, srv_trans_id, status;
2500
2501 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
2502 slen = WPA_GET_LE16(pos);
2503 pos += 2;
2504 if (pos + slen > end || slen < 3) {
2505 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
2506 "length");
2507 return;
2508 }
2509 tlv_end = pos + slen;
2510
2511 srv_proto = *pos++;
2512 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2513 srv_proto);
2514 srv_trans_id = *pos++;
2515 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2516 srv_trans_id);
2517 status = *pos++;
2518 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
2519 status);
2520
2521 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
2522 pos, tlv_end - pos);
2523
2524 pos = tlv_end;
2525 }
43a26f60
KRK		 2526
2527 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
b22128ef
JM		 2528}
2529
2530
7165c5dc
JM		 2531u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
2532 const struct wpabuf *tlvs)
b22128ef 2533{
9526fd29 2534 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7165c5dc
JM		 2535 return 0;
2536 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
b22128ef
JM		 2537}
2538
2539
7165c5dc
JM		 2540u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
2541 u8 version, const char *query)
b22128ef
JM		 2542{
2543 struct wpabuf *tlvs;
7165c5dc 2544 u64 ret;
b22128ef
JM		 2545
2546 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
2547 if (tlvs == NULL)
7165c5dc 2548 return 0;
b22128ef
JM		 2549 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
2550 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
2551 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
2552 wpabuf_put_u8(tlvs, version);
2553 wpabuf_put_str(tlvs, query);
2554 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
2555 wpabuf_free(tlvs);
2556 return ret;
2557}
2558
2559
347d6a5b
JM		 2560#ifdef CONFIG_WIFI_DISPLAY
2561
2562static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
2563 const struct wpabuf *tlvs)
2564{
347d6a5b
JM		 2565 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2566 return 0;
2567 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
2568}
2569
2570
2571#define MAX_WFD_SD_SUBELEMS 20
2572
2573static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
2574 const char *subelems)
2575{
2576 u8 *len;
2577 const char *pos;
2578 int val;
2579 int count = 0;
2580
2581 len = wpabuf_put(tlvs, 2);
2582 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
2583 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
2584
2585 wpabuf_put_u8(tlvs, role);
2586
2587 pos = subelems;
2588 while (*pos) {
2589 val = atoi(pos);
2590 if (val >= 0 && val < 256) {
2591 wpabuf_put_u8(tlvs, val);
2592 count++;
2593 if (count == MAX_WFD_SD_SUBELEMS)
2594 break;
2595 }
2596 pos = os_strchr(pos + 1, ',');
2597 if (pos == NULL)
2598 break;
2599 pos++;
2600 }
2601
2602 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
2603}
2604
2605
2606u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
2607 const u8 *dst, const char *role)
2608{
2609 struct wpabuf *tlvs;
2610 u64 ret;
2611 const char *subelems;
2612 u8 id = 1;
2613
2614 subelems = os_strchr(role, ' ');
2615 if (subelems == NULL)
2616 return 0;
2617 subelems++;
2618
2619 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
2620 if (tlvs == NULL)
2621 return 0;
2622
2623 if (os_strstr(role, "[source]"))
2624 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
2625 if (os_strstr(role, "[pri-sink]"))
2626 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
2627 if (os_strstr(role, "[sec-sink]"))
2628 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
2629 if (os_strstr(role, "[source+sink]"))
2630 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
2631
2632 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
2633 wpabuf_free(tlvs);
2634 return ret;
2635}
2636
2637#endif /* CONFIG_WIFI_DISPLAY */
2638
2639
7165c5dc 2640int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
b22128ef 2641{
9526fd29
JM		 2642 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2643 return -1;
7165c5dc
JM		 2644 return p2p_sd_cancel_request(wpa_s->global->p2p,
2645 (void *) (uintptr_t) req);
b22128ef
JM		 2646}
2647
2648
2649void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
2650 const u8 *dst, u8 dialog_token,
2651 const struct wpabuf *resp_tlvs)
2652{
9526fd29
JM		 2653 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2654 return;
b22128ef
JM		 2655 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
2656 resp_tlvs);
2657}
2658
2659
2660void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
2661{
9526fd29
JM		 2662 if (wpa_s->global->p2p)
2663 p2p_sd_service_update(wpa_s->global->p2p);
b22128ef
JM		 2664}
2665
2666
2667static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
2668{
2669 dl_list_del(&bsrv->list);
2670 wpabuf_free(bsrv->query);
2671 wpabuf_free(bsrv->resp);
2672 os_free(bsrv);
2673}
2674
2675
2676static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
2677{
2678 dl_list_del(&usrv->list);
2679 os_free(usrv->service);
2680 os_free(usrv);
2681}
2682
2683
2684void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
2685{
2686 struct p2p_srv_bonjour *bsrv, *bn;
2687 struct p2p_srv_upnp *usrv, *un;
2688
2689 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
2690 struct p2p_srv_bonjour, list)
2691 wpas_p2p_srv_bonjour_free(bsrv);
2692
2693 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
2694 struct p2p_srv_upnp, list)
2695 wpas_p2p_srv_upnp_free(usrv);
2696
2697 wpas_p2p_sd_service_update(wpa_s);
2698}
2699
2700
2701int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
2702 struct wpabuf *query, struct wpabuf *resp)
2703{
2704 struct p2p_srv_bonjour *bsrv;
2705
b22128ef
JM		 2706 bsrv = os_zalloc(sizeof(*bsrv));
2707 if (bsrv == NULL)
2708 return -1;
2709 bsrv->query = query;
2710 bsrv->resp = resp;
2711 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
2712
2713 wpas_p2p_sd_service_update(wpa_s);
2714 return 0;
2715}
2716
2717
2718int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
2719 const struct wpabuf *query)
2720{
2721 struct p2p_srv_bonjour *bsrv;
2722
2723 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
2724 if (bsrv == NULL)
2725 return -1;
2726 wpas_p2p_srv_bonjour_free(bsrv);
2727 wpas_p2p_sd_service_update(wpa_s);
2728 return 0;
2729}
2730
2731
2732int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
2733 const char *service)
2734{
2735 struct p2p_srv_upnp *usrv;
2736
2737 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
2738 return 0; /* Already listed */
2739 usrv = os_zalloc(sizeof(*usrv));
2740 if (usrv == NULL)
2741 return -1;
2742 usrv->version = version;
2743 usrv->service = os_strdup(service);
2744 if (usrv->service == NULL) {
2745 os_free(usrv);
2746 return -1;
2747 }
2748 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
2749
2750 wpas_p2p_sd_service_update(wpa_s);
2751 return 0;
2752}
2753
2754
2755int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
2756 const char *service)
2757{
2758 struct p2p_srv_upnp *usrv;
2759
2760 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
2761 if (usrv == NULL)
2762 return -1;
2763 wpas_p2p_srv_upnp_free(usrv);
2764 wpas_p2p_sd_service_update(wpa_s);
2765 return 0;
2766}
2767
2768
2769static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
bbeee9b0
JB		 2770 const u8 *peer, const char *params,
2771 unsigned int generated_pin)
b22128ef 2772{
92c4465b
JM		 2773 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2774 " %08d%s", MAC2STR(peer), generated_pin, params);
b22128ef
JM		 2775}
2776
2777
2778static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2779 const u8 *peer, const char *params)
2780{
92c4465b
JM		 2781 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2782 "%s", MAC2STR(peer), params);
b22128ef
JM		 2783}
2784
2785
152cff6b
JM		 2786static void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2787 const u8 *dev_addr, const u8 *pri_dev_type,
2788 const char *dev_name, u16 supp_config_methods,
2789 u8 dev_capab, u8 group_capab, const u8 *group_id,
2790 size_t group_id_len)
b22128ef
JM		 2791{
2792 struct wpa_supplicant *wpa_s = ctx;
2793 char devtype[WPS_DEV_TYPE_BUFSIZE];
c3f42784 2794 char params[300];
b22128ef 2795 u8 empty_dev_type[8];
bbeee9b0 2796 unsigned int generated_pin = 0;
c3f42784
JM		 2797 struct wpa_supplicant *group = NULL;
2798
2799 if (group_id) {
2800 for (group = wpa_s->global->ifaces; group; group = group->next)
2801 {
2802 struct wpa_ssid *s = group->current_ssid;
2803 if (s != NULL &&
2804 s->mode == WPAS_MODE_P2P_GO &&
2805 group_id_len - ETH_ALEN == s->ssid_len &&
2806 os_memcmp(group_id + ETH_ALEN, s->ssid,
2807 s->ssid_len) == 0)
2808 break;
2809 }
2810 }
b22128ef
JM		 2811
2812 if (pri_dev_type == NULL) {
2813 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2814 pri_dev_type = empty_dev_type;
2815 }
2816 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2817 " pri_dev_type=%s name='%s' config_methods=0x%x "
c3f42784 2818 "dev_capab=0x%x group_capab=0x%x%s%s",
b22128ef
JM		 2819 MAC2STR(dev_addr),
2820 wps_dev_type_bin2str(pri_dev_type, devtype,
2821 sizeof(devtype)),
c3f42784
JM		 2822 dev_name, supp_config_methods, dev_capab, group_capab,
2823 group ? " group=" : "",
2824 group ? group->ifname : "");
b22128ef
JM		 2825 params[sizeof(params) - 1] = '\0';
2826
bbeee9b0
JB		 2827 if (config_methods & WPS_CONFIG_DISPLAY) {
2828 generated_pin = wps_generate_pin();
2829 wpas_prov_disc_local_display(wpa_s, peer, params,
2830 generated_pin);
2831 } else if (config_methods & WPS_CONFIG_KEYPAD)
b22128ef
JM		 2832 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2833 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
92c4465b
JM		 2834 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2835 MACSTR "%s", MAC2STR(peer), params);
dd8a7e05
JB		 2836
2837 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2838 P2P_PROV_DISC_SUCCESS,
2839 config_methods, generated_pin);
b22128ef
JM		 2840}
2841
2842
152cff6b 2843static void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
b22128ef
JM		 2844{
2845 struct wpa_supplicant *wpa_s = ctx;
bbeee9b0 2846 unsigned int generated_pin = 0;
0918c4bf 2847 char params[20];
bbeee9b0 2848
c1931635
JM		 2849 if (wpa_s->pending_pd_before_join &&
2850 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2851 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2852 wpa_s->pending_pd_before_join = 0;
2853 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2854 "join-existing-group operation");
23318bea 2855 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
c1931635
JM		 2856 return;
2857 }
2858
0918c4bf
JM		 2859 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2860 wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2861 os_snprintf(params, sizeof(params), " peer_go=%d",
2862 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2863 else
2864 params[0] = '\0';
2865
b22128ef 2866 if (config_methods & WPS_CONFIG_DISPLAY)
0918c4bf 2867 wpas_prov_disc_local_keypad(wpa_s, peer, params);
bbeee9b0
JB		 2868 else if (config_methods & WPS_CONFIG_KEYPAD) {
2869 generated_pin = wps_generate_pin();
0918c4bf
JM		 2870 wpas_prov_disc_local_display(wpa_s, peer, params,
2871 generated_pin);
bbeee9b0 2872 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
92c4465b
JM		 2873 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2874 MACSTR "%s", MAC2STR(peer), params);
a482883f 2875
dd8a7e05
JB		 2876 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2877 P2P_PROV_DISC_SUCCESS,
2878 config_methods, generated_pin);
b22128ef
JM		 2879}
2880
2881
19df9b07
JM		 2882static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2883 enum p2p_prov_disc_status status)
dd8a7e05
JB		 2884{
2885 struct wpa_supplicant *wpa_s = ctx;
2886
aa9bb764
JM		 2887 if (wpa_s->p2p_fallback_to_go_neg) {
2888 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2889 "failed - fall back to GO Negotiation");
2890 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2891 return;
2892 }
2893
175171ac
JM		 2894 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2895 wpa_s->pending_pd_before_join = 0;
2896 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2897 "join-existing-group operation (no ACK for PD "
2898 "Req attempts)");
23318bea 2899 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
175171ac
JM		 2900 return;
2901 }
2902
92c4465b
JM		 2903 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2904 " p2p_dev_addr=" MACSTR " status=%d",
2905 MAC2STR(peer), status);
f65a239b 2906
dd8a7e05
JB		 2907 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2908 status, 0, 0);
2909}
2910
2911
72728c6f
SL		 2912static int freq_included(const struct p2p_channels *channels, unsigned int freq)
2913{
2914 if (channels == NULL)
2915 return 1; /* Assume no restrictions */
2916 return p2p_channels_includes_freq(channels, freq);
2917
2918}
2919
2920
a0c90bb0
IP		 2921/**
2922 * Pick the best frequency to use from all the currently used frequencies.
2923 */
2924static int wpas_p2p_pick_best_used_freq(struct wpa_supplicant *wpa_s,
2925 struct wpa_used_freq_data *freqs,
2926 unsigned int num)
2927{
2928 unsigned int i, c;
2929
2930 /* find a candidate freq that is supported by P2P */
2931 for (c = 0; c < num; c++)
2932 if (p2p_supported_freq(wpa_s->global->p2p, freqs[c].freq))
2933 break;
2934
2935 if (c == num)
2936 return 0;
2937
2938 /* once we have a candidate, try to find a 'better' one */
2939 for (i = c + 1; i < num; i++) {
2940 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i].freq))
2941 continue;
2942
2943 /*
2944 * 1. Infrastructure station interfaces have higher preference.
2945 * 2. P2P Clients have higher preference.
2946 * 3. All others.
2947 */
2948 if (freqs[i].flags & WPA_FREQ_USED_BY_INFRA_STATION) {
2949 c = i;
2950 break;
2951 }
2952
2953 if ((freqs[i].flags & WPA_FREQ_USED_BY_P2P_CLIENT))
2954 c = i;
2955 }
2956 return freqs[c].freq;
2957}
2958
2959
b22128ef
JM		 2960static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2961 const u8 *go_dev_addr, const u8 *ssid,
2962 size_t ssid_len, int *go, u8 *group_bssid,
72728c6f 2963 int *force_freq, int persistent_group,
8e9f53c3
JM		 2964 const struct p2p_channels *channels,
2965 int dev_pw_id)
b22128ef
JM		 2966{
2967 struct wpa_supplicant *wpa_s = ctx;
2968 struct wpa_ssid *s;
a0c90bb0 2969 struct wpa_used_freq_data *freqs;
ab72eb52 2970 struct wpa_supplicant *grp;
a0c90bb0 2971 int best_freq;
b22128ef
JM		 2972
2973 if (!persistent_group) {
2974 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
c48414af
JM		 2975 " to join an active group (SSID: %s)",
2976 MAC2STR(sa), wpa_ssid_txt(ssid, ssid_len));
108def93 2977 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
131cb37c
JM		 2978 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2979 == 0 ||
2980 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
108def93
JM		 2981 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2982 "authorized invitation");
2983 goto accept_inv;
2984 }
8e9f53c3
JM		 2985
2986#ifdef CONFIG_WPS_NFC
2987 if (dev_pw_id >= 0 && wpa_s->parent->p2p_nfc_tag_enabled &&
2988 dev_pw_id == wpa_s->parent->p2p_oob_dev_pw_id) {
2989 wpa_printf(MSG_DEBUG, "P2P: Accept invitation based on local enabled NFC Tag");
2990 wpa_s->parent->p2p_wps_method = WPS_NFC;
2991 wpa_s->parent->pending_join_wps_method = WPS_NFC;
2992 os_memcpy(wpa_s->parent->pending_join_dev_addr,
2993 go_dev_addr, ETH_ALEN);
2994 os_memcpy(wpa_s->parent->pending_join_iface_addr,
2995 bssid, ETH_ALEN);
2996 goto accept_inv;
2997 }
2998#endif /* CONFIG_WPS_NFC */
2999
b22128ef
JM		 3000 /*
3001 * Do not accept the invitation automatically; notify user and
3002 * request approval.
3003 */
3004 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
3005 }
3006
ab72eb52
JM		 3007 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
3008 if (grp) {
3009 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
3010 "running persistent group");
3011 if (*go)
3012 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
3013 goto accept_inv;
3014 }
3015
77e4e853
JM		 3016 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
3017 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
3018 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
3019 "invitation to re-invoke a persistent group");
829a1b32 3020 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
77e4e853 3021 } else if (!wpa_s->conf->persistent_reconnect)
b22128ef
JM		 3022 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
3023
3024 for (s = wpa_s->conf->ssid; s; s = s->next) {
3025 if (s->disabled == 2 &&
3026 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
3027 s->ssid_len == ssid_len &&
3028 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3029 break;
3030 }
3031
3032 if (!s) {
3033 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
3034 " requested reinvocation of an unknown group",
3035 MAC2STR(sa));
3036 return P2P_SC_FAIL_UNKNOWN_GROUP;
3037 }
3038
3039 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
3040 *go = 1;
3041 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3042 wpa_printf(MSG_DEBUG, "P2P: The only available "
3043 "interface is already in use - reject "
3044 "invitation");
3045 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
3046 }
3047 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
3048 } else if (s->mode == WPAS_MODE_P2P_GO) {
3049 *go = 1;
3050 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
3051 {
3052 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3053 "interface address for the group");
3054 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
3055 }
3056 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
3057 ETH_ALEN);
3058 }
3059
108def93 3060accept_inv:
6cb27aa8
JM		 3061 wpas_p2p_set_own_freq_preference(wpa_s, 0);
3062
a0c90bb0
IP		 3063 best_freq = 0;
3064 freqs = os_calloc(wpa_s->num_multichan_concurrent,
3065 sizeof(struct wpa_used_freq_data));
3066 if (freqs) {
3067 int num_channels = wpa_s->num_multichan_concurrent;
3068 int num = wpas_p2p_valid_oper_freqs(wpa_s, freqs, num_channels);
3069 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
3070 os_free(freqs);
3071 }
3072
0d08efa4 3073 /* Get one of the frequencies currently in use */
a0c90bb0 3074 if (best_freq > 0) {
21e491f2 3075 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
a0c90bb0 3076 wpas_p2p_set_own_freq_preference(wpa_s, best_freq);
21e491f2
JM		 3077
3078 if (wpa_s->num_multichan_concurrent < 2 ||
3079 wpas_p2p_num_unused_channels(wpa_s) < 1) {
3080 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 3081 *force_freq = best_freq;
21e491f2 3082 }
b22128ef
JM		 3083 }
3084
0d08efa4
IP		 3085 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
3086 wpas_p2p_num_unused_channels(wpa_s) > 0) {
72728c6f
SL		 3087 if (*go == 0) {
3088 /* We are the client */
3089 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
3090 "running a GO but we are capable of MCC, "
3091 "figure out the best channel to use");
3092 *force_freq = 0;
3093 } else if (!freq_included(channels, *force_freq)) {
3094 /* We are the GO, and *force_freq is not in the
3095 * intersection */
3096 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
3097 "in intersection but we are capable of MCC, "
3098 "figure out the best channel to use",
3099 *force_freq);
3100 *force_freq = 0;
3101 }
3102 }
3103
b22128ef
JM		 3104 return P2P_SC_SUCCESS;
3105}
3106
3107
3108static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
3109 const u8 *ssid, size_t ssid_len,
3110 const u8 *go_dev_addr, u8 status,
3111 int op_freq)
3112{
3113 struct wpa_supplicant *wpa_s = ctx;
3114 struct wpa_ssid *s;
3115
3116 for (s = wpa_s->conf->ssid; s; s = s->next) {
3117 if (s->disabled == 2 &&
3118 s->ssid_len == ssid_len &&
3119 os_memcmp(ssid, s->ssid, ssid_len) == 0)
3120 break;
3121 }
3122
3123 if (status == P2P_SC_SUCCESS) {
3124 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
c48414af
JM		 3125 " was accepted; op_freq=%d MHz, SSID=%s",
3126 MAC2STR(sa), op_freq, wpa_ssid_txt(ssid, ssid_len));
b22128ef 3127 if (s) {
2cd07584 3128 int go = s->mode == WPAS_MODE_P2P_GO;
b22128ef 3129 wpas_p2p_group_add_persistent(
41d5ce9e 3130 wpa_s, s, go, 0, op_freq, 0, 0, NULL,
bbc6c729 3131 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
2049af2b 3132 } else if (bssid) {
67527166 3133 wpa_s->user_initiated_pd = 0;
108def93 3134 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
23318bea 3135 wpa_s->p2p_wps_method, 0, op_freq,
c48414af 3136 ssid, ssid_len);
b22128ef
JM		 3137 }
3138 return;
3139 }
3140
3141 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3142 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
3143 " was rejected (status %u)", MAC2STR(sa), status);
3144 return;
3145 }
3146
3147 if (!s) {
3148 if (bssid) {
92c4465b
JM		 3149 wpa_msg_global(wpa_s, MSG_INFO,
3150 P2P_EVENT_INVITATION_RECEIVED
3151 "sa=" MACSTR " go_dev_addr=" MACSTR
3152 " bssid=" MACSTR " unknown-network",
3153 MAC2STR(sa), MAC2STR(go_dev_addr),
3154 MAC2STR(bssid));
b22128ef 3155 } else {
92c4465b
JM		 3156 wpa_msg_global(wpa_s, MSG_INFO,
3157 P2P_EVENT_INVITATION_RECEIVED
3158 "sa=" MACSTR " go_dev_addr=" MACSTR
3159 " unknown-network",
3160 MAC2STR(sa), MAC2STR(go_dev_addr));
b22128ef
JM		 3161 }
3162 return;
3163 }
3164
cd1e2309 3165 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
92c4465b
JM		 3166 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3167 "sa=" MACSTR " persistent=%d freq=%d",
3168 MAC2STR(sa), s->id, op_freq);
cd1e2309 3169 } else {
92c4465b
JM		 3170 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
3171 "sa=" MACSTR " persistent=%d",
3172 MAC2STR(sa), s->id);
cd1e2309 3173 }
b22128ef
JM		 3174}
3175
3176
dbca75f8
JM		 3177static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
3178 struct wpa_ssid *ssid,
f2c56602 3179 const u8 *peer, int inv)
dbca75f8
JM		 3180{
3181 size_t i;
3182
3183 if (ssid == NULL)
3184 return;
3185
3186 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
3187 if (os_memcmp(ssid->p2p_client_list + i * ETH_ALEN, peer,
3188 ETH_ALEN) == 0)
3189 break;
3190 }
8931a36c 3191 if (i >= ssid->num_p2p_clients || !ssid->p2p_client_list) {
dbca75f8
JM		 3192 if (ssid->mode != WPAS_MODE_P2P_GO &&
3193 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
3194 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
3195 "due to invitation result", ssid->id);
3196 wpas_notify_network_removed(wpa_s, ssid);
3197 wpa_config_remove_network(wpa_s->conf, ssid->id);
3198 return;
3199 }
3200 return; /* Peer not found in client list */
3201 }
3202
3203 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
f2c56602
JM		 3204 "group %d client list%s",
3205 MAC2STR(peer), ssid->id,
3206 inv ? " due to invitation result" : "");
dbca75f8
JM		 3207 os_memmove(ssid->p2p_client_list + i * ETH_ALEN,
3208 ssid->p2p_client_list + (i + 1) * ETH_ALEN,
3209 (ssid->num_p2p_clients - i - 1) * ETH_ALEN);
3210 ssid->num_p2p_clients--;
dbca75f8
JM		 3211 if (wpa_s->parent->conf->update_config &&
3212 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
3213 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
dbca75f8
JM		 3214}
3215
3216
3217static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
3218 const u8 *peer)
3219{
3220 struct wpa_ssid *ssid;
3221
3222 wpa_s = wpa_s->global->p2p_invite_group;
3223 if (wpa_s == NULL)
3224 return; /* No known invitation group */
3225 ssid = wpa_s->current_ssid;
3226 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
3227 !ssid->p2p_persistent_group)
3228 return; /* Not operating as a GO in persistent group */
3229 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
3230 ssid->ssid, ssid->ssid_len);
f2c56602 3231 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8
JM		 3232}
3233
3234
54733624 3235static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
dbca75f8 3236 const struct p2p_channels *channels,
41d5ce9e
RR		 3237 const u8 *peer, int neg_freq,
3238 int peer_oper_freq)
b22128ef
JM		 3239{
3240 struct wpa_supplicant *wpa_s = ctx;
3241 struct wpa_ssid *ssid;
41d5ce9e 3242 int freq;
b22128ef
JM		 3243
3244 if (bssid) {
92c4465b
JM		 3245 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3246 "status=%d " MACSTR,
3247 status, MAC2STR(bssid));
b22128ef 3248 } else {
92c4465b
JM		 3249 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
3250 "status=%d ", status);
b22128ef 3251 }
5ccdf84f 3252 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
b22128ef 3253
dbca75f8
JM		 3254 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
3255 status, MAC2STR(peer));
3256 if (wpa_s->pending_invite_ssid_id == -1) {
3257 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
3258 wpas_remove_persistent_client(wpa_s, peer);
706887fc 3259 return; /* Invitation to active group */
dbca75f8 3260 }
706887fc 3261
77e4e853
JM		 3262 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
3263 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
3264 "invitation exchange to indicate readiness for "
3265 "re-invocation");
3266 }
3267
b22128ef 3268 if (status != P2P_SC_SUCCESS) {
dbca75f8
JM		 3269 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
3270 ssid = wpa_config_get_network(
3271 wpa_s->conf, wpa_s->pending_invite_ssid_id);
f2c56602 3272 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8 3273 }
b22128ef
JM		 3274 wpas_p2p_remove_pending_group_interface(wpa_s);
3275 return;
3276 }
3277
3278 ssid = wpa_config_get_network(wpa_s->conf,
3279 wpa_s->pending_invite_ssid_id);
3280 if (ssid == NULL) {
3281 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
3282 "data matching with invitation");
3283 return;
3284 }
3285
13ece96f
JM		 3286 /*
3287 * The peer could have missed our ctrl::ack frame for Invitation
3288 * Response and continue retransmitting the frame. To reduce the
3289 * likelihood of the peer not getting successful TX status for the
3290 * Invitation Response frame, wait a short time here before starting
3291 * the persistent group so that we will remain on the current channel to
3292 * acknowledge any possible retransmission from the peer.
3293 */
3294 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
3295 "starting persistent group");
3296 os_sleep(0, 50000);
3297
41d5ce9e
RR		 3298 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
3299 freq_included(channels, neg_freq))
3300 freq = neg_freq;
3301 else if (peer_oper_freq > 0 && ssid->mode != WPAS_MODE_P2P_GO &&
3302 freq_included(channels, peer_oper_freq))
3303 freq = peer_oper_freq;
3304 else
3305 freq = 0;
3306
3307 wpa_printf(MSG_DEBUG, "P2P: Persistent group invitation success - op_freq=%d MHz SSID=%s",
3308 freq, wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
b22128ef 3309 wpas_p2p_group_add_persistent(wpa_s, ssid,
4d32c0c4 3310 ssid->mode == WPAS_MODE_P2P_GO,
062a7c0d 3311 wpa_s->p2p_persistent_go_freq,
41d5ce9e 3312 freq,
20ea1ca4
EP		 3313 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
3314 channels,
bbc6c729
JM		 3315 ssid->mode == WPAS_MODE_P2P_GO ?
3316 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
3317 0);
b22128ef
JM		 3318}
3319
3320
6f3bc72b
JM		 3321static int wpas_p2p_disallowed_freq(struct wpa_global *global,
3322 unsigned int freq)
3323{
253f2e37
AH		 3324 if (freq_range_list_includes(&global->p2p_go_avoid_freq, freq))
3325 return 1;
af8a827b 3326 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
6f3bc72b
JM		 3327}
3328
3329
3330static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
3331{
3332 reg->channel[reg->channels] = chan;
3333 reg->channels++;
3334}
3335
3336
ac8d1011 3337static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3338 struct p2p_channels *chan,
3339 struct p2p_channels *cli_chan)
ac8d1011
JM		 3340{
3341 int i, cla = 0;
3342
51e9f228
JM		 3343 os_memset(cli_chan, 0, sizeof(*cli_chan));
3344
ac8d1011
JM		 3345 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
3346 "band");
3347
3348 /* Operating class 81 - 2.4 GHz band channels 1..13 */
3349 chan->reg_class[cla].reg_class = 81;
6f3bc72b
JM		 3350 chan->reg_class[cla].channels = 0;
3351 for (i = 0; i < 11; i++) {
3352 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
3353 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
3354 }
3355 if (chan->reg_class[cla].channels)
3356 cla++;
ac8d1011
JM		 3357
3358 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
3359 "band");
3360
3361 /* Operating class 115 - 5 GHz, channels 36-48 */
3362 chan->reg_class[cla].reg_class = 115;
6f3bc72b
JM		 3363 chan->reg_class[cla].channels = 0;
3364 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
3365 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
3366 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
3367 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
3368 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3369 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3370 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3371 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3372 if (chan->reg_class[cla].channels)
3373 cla++;
ac8d1011
JM		 3374
3375 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3376 "band");
3377
3378 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3379 chan->reg_class[cla].reg_class = 124;
6f3bc72b
JM		 3380 chan->reg_class[cla].channels = 0;
3381 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3382 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3383 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3384 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3385 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3386 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3387 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3388 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3389 if (chan->reg_class[cla].channels)
3390 cla++;
ac8d1011
JM		 3391
3392 chan->reg_classes = cla;
3393 return 0;
3394}
3395
3396
3397static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3398 u16 num_modes,
3399 enum hostapd_hw_mode mode)
3400{
3401 u16 i;
3402
3403 for (i = 0; i < num_modes; i++) {
3404 if (modes[i].mode == mode)
3405 return &modes[i];
3406 }
3407
3408 return NULL;
3409}
3410
3411
51e9f228
JM		 3412enum chan_allowed {
3413 NOT_ALLOWED, PASSIVE_ONLY, ALLOWED
3414};
3415
6f3bc72b
JM		 3416static int has_channel(struct wpa_global *global,
3417 struct hostapd_hw_modes *mode, u8 chan, int *flags)
ac8d1011
JM		 3418{
3419 int i;
6f3bc72b
JM		 3420 unsigned int freq;
3421
3422 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3423 chan * 5;
3424 if (wpas_p2p_disallowed_freq(global, freq))
51e9f228 3425 return NOT_ALLOWED;
ac8d1011
JM		 3426
3427 for (i = 0; i < mode->num_channels; i++) {
3428 if (mode->channels[i].chan == chan) {
51222429
JM		 3429 if (flags)
3430 *flags = mode->channels[i].flag;
51e9f228
JM		 3431 if (mode->channels[i].flag &
3432 (HOSTAPD_CHAN_DISABLED |
3433 HOSTAPD_CHAN_RADAR))
3434 return NOT_ALLOWED;
3435 if (mode->channels[i].flag &
3436 (HOSTAPD_CHAN_PASSIVE_SCAN |
3437 HOSTAPD_CHAN_NO_IBSS))
3438 return PASSIVE_ONLY;
3439 return ALLOWED;
ac8d1011
JM		 3440 }
3441 }
3442
51e9f228 3443 return NOT_ALLOWED;
ac8d1011
JM		 3444}
3445
3446
3447struct p2p_oper_class_map {
3448 enum hostapd_hw_mode mode;
3449 u8 op_class;
3450 u8 min_chan;
3451 u8 max_chan;
3452 u8 inc;
ca9bc5b5 3453 enum { BW20, BW40PLUS, BW40MINUS, BW80 } bw;
ac8d1011
JM		 3454};
3455
931228aa
RM		 3456static struct p2p_oper_class_map op_class[] = {
3457 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
931228aa
RM		 3458#if 0 /* Do not enable HT40 on 2 GHz for now */
3459 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3460 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3461#endif
3462 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3463 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3464 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3465 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3466 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3467 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
ca9bc5b5
EP		 3468
3469 /*
3470 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3471 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3472 * 80 MHz, but currently use the following definition for simplicity
3473 * (these center frequencies are not actual channels, which makes
3474 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3475 * removing invalid channels.
3476 */
3477 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
931228aa
RM		 3478 { -1, 0, 0, 0, 0, BW20 }
3479};
3480
3481
ca9bc5b5
EP		 3482static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3483 struct hostapd_hw_modes *mode,
3484 u8 channel)
3485{
3486 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3487 unsigned int i;
3488
3489 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3490 return 0;
3491
3492 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3493 /*
3494 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3495 * so the center channel is 6 channels away from the start/end.
3496 */
3497 if (channel >= center_channels[i] - 6 &&
3498 channel <= center_channels[i] + 6)
3499 return center_channels[i];
3500
3501 return 0;
3502}
3503
3504
3505static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3506 struct hostapd_hw_modes *mode,
3507 u8 channel, u8 bw)
3508{
3509 u8 center_chan;
3510 int i, flags;
3511 enum chan_allowed res, ret = ALLOWED;
3512
3513 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3514 if (!center_chan)
3515 return NOT_ALLOWED;
3516 if (center_chan >= 58 && center_chan <= 138)
3517 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3518
3519 /* check all the channels are available */
3520 for (i = 0; i < 4; i++) {
3521 int adj_chan = center_chan - 6 + i * 4;
3522
3523 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3524 if (res == NOT_ALLOWED)
3525 return NOT_ALLOWED;
3526 if (res == PASSIVE_ONLY)
3527 ret = PASSIVE_ONLY;
3528
3529 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3530 return NOT_ALLOWED;
3531 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3532 return NOT_ALLOWED;
3533 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3534 return NOT_ALLOWED;
3535 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3536 return NOT_ALLOWED;
3537 }
3538
3539 return ret;
3540}
3541
3542
51e9f228
JM		 3543static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3544 struct hostapd_hw_modes *mode,
3545 u8 channel, u8 bw)
931228aa 3546{
cbf21c7c 3547 int flag = 0;
51e9f228
JM		 3548 enum chan_allowed res, res2;
3549
3550 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3551 if (bw == BW40MINUS) {
3552 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3553 return NOT_ALLOWED;
3554 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3555 } else if (bw == BW40PLUS) {
3556 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3557 return NOT_ALLOWED;
3558 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
ca9bc5b5
EP		 3559 } else if (bw == BW80) {
3560 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
51e9f228
JM		 3561 }
3562
3563 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3564 return NOT_ALLOWED;
3565 if (res == PASSIVE_ONLY || res2 == PASSIVE_ONLY)
3566 return PASSIVE_ONLY;
3567 return res;
931228aa
RM		 3568}
3569
3570
b22128ef 3571static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3572 struct p2p_channels *chan,
3573 struct p2p_channels *cli_chan)
b22128ef 3574{
6bf731e8 3575 struct hostapd_hw_modes *mode;
51e9f228 3576 int cla, op, cli_cla;
b22128ef 3577
6bf731e8 3578 if (wpa_s->hw.modes == NULL) {
b22128ef
JM		 3579 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3580 "of all supported channels; assume dualband "
3581 "support");
51e9f228 3582 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
b22128ef
JM		 3583 }
3584
51e9f228 3585 cla = cli_cla = 0;
b22128ef 3586
ac8d1011
JM		 3587 for (op = 0; op_class[op].op_class; op++) {
3588 struct p2p_oper_class_map *o = &op_class[op];
3589 u8 ch;
51e9f228 3590 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
b22128ef 3591
6bf731e8 3592 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
ac8d1011
JM		 3593 if (mode == NULL)
3594 continue;
3595 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
51e9f228
JM		 3596 enum chan_allowed res;
3597 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3598 if (res == ALLOWED) {
3599 if (reg == NULL) {
3600 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3601 o->op_class);
3602 reg = &chan->reg_class[cla];
3603 cla++;
3604 reg->reg_class = o->op_class;
3605 }
3606 reg->channel[reg->channels] = ch;
3607 reg->channels++;
3608 } else if (res == PASSIVE_ONLY &&
3609 wpa_s->conf->p2p_add_cli_chan) {
3610 if (cli_reg == NULL) {
3611 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3612 o->op_class);
3613 cli_reg = &cli_chan->reg_class[cli_cla];
3614 cli_cla++;
3615 cli_reg->reg_class = o->op_class;
3616 }
3617 cli_reg->channel[cli_reg->channels] = ch;
3618 cli_reg->channels++;
ac8d1011 3619 }
ac8d1011
JM		 3620 }
3621 if (reg) {
3622 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3623 reg->channel, reg->channels);
3624 }
51e9f228
JM		 3625 if (cli_reg) {
3626 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3627 cli_reg->channel, cli_reg->channels);
3628 }
b22128ef
JM		 3629 }
3630
ac8d1011 3631 chan->reg_classes = cla;
51e9f228 3632 cli_chan->reg_classes = cli_cla;
b22128ef 3633
b22128ef
JM		 3634 return 0;
3635}
3636
3637
7aeac985
RM		 3638int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3639 struct hostapd_hw_modes *mode, u8 channel)
3640{
51e9f228
JM		 3641 int op;
3642 enum chan_allowed ret;
7aeac985
RM		 3643
3644 for (op = 0; op_class[op].op_class; op++) {
3645 struct p2p_oper_class_map *o = &op_class[op];
3646 u8 ch;
3647
3648 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3649 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3650 o->bw == BW20 || ch != channel)
3651 continue;
3652 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
51e9f228 3653 if (ret == ALLOWED)
7aeac985 3654 return (o->bw == BW40MINUS) ? -1 : 1;
7aeac985
RM		 3655 }
3656 }
3657 return 0;
3658}
3659
3660
ca9bc5b5
EP		 3661int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3662 struct hostapd_hw_modes *mode, u8 channel)
3663{
3664 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3665 return 0;
3666
3667 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3668}
3669
3670
b22128ef
JM		 3671static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3672 size_t buf_len)
3673{
3674 struct wpa_supplicant *wpa_s = ctx;
3675
3676 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3677 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3678 break;
3679 }
3680 if (wpa_s == NULL)
3681 return -1;
3682
3683 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3684}
3685
3686
6f04642f
TB		 3687struct wpa_supplicant * wpas_get_p2p_go_iface(struct wpa_supplicant *wpa_s,
3688 const u8 *ssid, size_t ssid_len)
b1aebbc4 3689{
6f04642f
TB		 3690 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3691 struct wpa_ssid *s = wpa_s->current_ssid;
3692 if (s == NULL)
3693 continue;
3694 if (s->mode != WPAS_MODE_P2P_GO &&
3695 s->mode != WPAS_MODE_AP &&
3696 s->mode != WPAS_MODE_P2P_GROUP_FORMATION)
3697 continue;
3698 if (s->ssid_len != ssid_len ||
3699 os_memcmp(s, s->ssid, ssid_len) != 0)
3700 continue;
3701 return wpa_s;
3702 }
3703
3704 return NULL;
3705
3706}
3707
b1aebbc4 3708
6f04642f
TB		 3709struct wpa_supplicant * wpas_get_p2p_client_iface(struct wpa_supplicant *wpa_s,
3710 const u8 *peer_dev_addr)
3711{
b1aebbc4
JM		 3712 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3713 struct wpa_ssid *ssid = wpa_s->current_ssid;
3714 if (ssid == NULL)
3715 continue;
3716 if (ssid->mode != WPAS_MODE_INFRA)
3717 continue;
d9a0f666
PN		 3718 if (wpa_s->wpa_state != WPA_COMPLETED &&
3719 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
b1aebbc4 3720 continue;
6f04642f
TB		 3721 if (os_memcmp(wpa_s->go_dev_addr, peer_dev_addr, ETH_ALEN) == 0)
3722 return wpa_s;
b1aebbc4
JM		 3723 }
3724
6f04642f
TB		 3725 return NULL;
3726}
3727
3728
3729static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3730{
3731 struct wpa_supplicant *wpa_s = ctx;
3732
3733 return wpas_get_p2p_client_iface(wpa_s, dev_addr) != NULL;
b1aebbc4
JM		 3734}
3735
3736
a2d63657
RR		 3737static int wpas_is_concurrent_session_active(void *ctx)
3738{
3739 struct wpa_supplicant *wpa_s = ctx;
3740 struct wpa_supplicant *ifs;
3741
3742 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
3743 if (ifs == wpa_s)
3744 continue;
3745 if (ifs->wpa_state > WPA_ASSOCIATED)
3746 return 1;
3747 }
3748 return 0;
3749}
3750
3751
ed496f13
JM		 3752static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3753{
3754 struct wpa_supplicant *wpa_s = ctx;
92c4465b 3755 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
ed496f13
JM		 3756}
3757
3758
c68f6200
AS		 3759int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s)
3760{
3761 struct wpa_interface iface;
3762 struct wpa_supplicant *p2pdev_wpa_s;
3763 char ifname[100];
3764 char force_name[100];
3765 int ret;
3766
2e5ba4b6
AS		 3767 os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3768 wpa_s->ifname);
c68f6200
AS		 3769 force_name[0] = '\0';
3770 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3771 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3772 force_name, wpa_s->pending_interface_addr, NULL);
3773 if (ret < 0) {
3774 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3775 return ret;
3776 }
3777 os_strlcpy(wpa_s->pending_interface_name, ifname,
3778 sizeof(wpa_s->pending_interface_name));
3779
3780 os_memset(&iface, 0, sizeof(iface));
3781 iface.p2p_mgmt = 1;
3782 iface.ifname = wpa_s->pending_interface_name;
3783 iface.driver = wpa_s->driver->name;
c68f6200 3784 iface.driver_param = wpa_s->conf->driver_param;
c16a7590
IP		 3785
3786 /*
3787 * If a P2P Device configuration file was given, use it as the interface
3788 * configuration file (instead of using parent's configuration file.
3789 */
3790 if (wpa_s->conf_p2p_dev) {
3791 iface.confname = wpa_s->conf_p2p_dev;
3792 iface.ctrl_interface = NULL;
3793 } else {
3794 iface.confname = wpa_s->confname;
3795 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
3796 }
3797 iface.conf_p2p_dev = NULL;
3798
c68f6200
AS		 3799 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
3800 if (!p2pdev_wpa_s) {
3801 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3802 return -1;
3803 }
78f79fe5 3804 p2pdev_wpa_s->parent = wpa_s;
c68f6200
AS		 3805
3806 wpa_s->pending_interface_name[0] = '\0';
3807 return 0;
3808}
3809
3810
c64e3a08
JM		 3811static void wpas_presence_resp(void *ctx, const u8 *src, u8 status,
3812 const u8 *noa, size_t noa_len)
3813{
3814 struct wpa_supplicant *wpa_s, *intf = ctx;
3815 char hex[100];
3816
3817 for (wpa_s = intf->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3818 if (wpa_s->waiting_presence_resp)
3819 break;
3820 }
3821 if (!wpa_s) {
3822 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No group interface was waiting for presence response");
3823 return;
3824 }
3825 wpa_s->waiting_presence_resp = 0;
3826
3827 wpa_snprintf_hex(hex, sizeof(hex), noa, noa_len);
3828 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PRESENCE_RESPONSE "src=" MACSTR
3829 " status=%u noa=%s", MAC2STR(src), status, hex);
3830}
3831
3832
0f1034e3
SD		 3833static int _wpas_p2p_in_progress(void *ctx)
3834{
3835 struct wpa_supplicant *wpa_s = ctx;
3836 return wpas_p2p_in_progress(wpa_s);
3837}
3838
3839
b22128ef
JM		 3840/**
3841 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
3842 * @global: Pointer to global data from wpa_supplicant_init()
3843 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3844 * Returns: 0 on success, -1 on failure
3845 */
3846int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
3847{
3848 struct p2p_config p2p;
3849 unsigned int r;
f95cac27 3850 int i;
b22128ef 3851
f2b3f4de
SS		 3852 if (wpa_s->conf->p2p_disabled)
3853 return 0;
3854
b22128ef
JM		 3855 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3856 return 0;
3857
b22128ef
JM		 3858 if (global->p2p)
3859 return 0;
3860
3861 os_memset(&p2p, 0, sizeof(p2p));
b22128ef 3862 p2p.cb_ctx = wpa_s;
ed496f13 3863 p2p.debug_print = wpas_p2p_debug_print;
b22128ef
JM		 3864 p2p.p2p_scan = wpas_p2p_scan;
3865 p2p.send_action = wpas_send_action;
3866 p2p.send_action_done = wpas_send_action_done;
3867 p2p.go_neg_completed = wpas_go_neg_completed;
3868 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
3869 p2p.dev_found = wpas_dev_found;
56eeb8f2 3870 p2p.dev_lost = wpas_dev_lost;
710ae9ac 3871 p2p.find_stopped = wpas_find_stopped;
b22128ef
JM		 3872 p2p.start_listen = wpas_start_listen;
3873 p2p.stop_listen = wpas_stop_listen;
3874 p2p.send_probe_resp = wpas_send_probe_resp;
3875 p2p.sd_request = wpas_sd_request;
3876 p2p.sd_response = wpas_sd_response;
3877 p2p.prov_disc_req = wpas_prov_disc_req;
3878 p2p.prov_disc_resp = wpas_prov_disc_resp;
dd8a7e05 3879 p2p.prov_disc_fail = wpas_prov_disc_fail;
b22128ef
JM		 3880 p2p.invitation_process = wpas_invitation_process;
3881 p2p.invitation_received = wpas_invitation_received;
3882 p2p.invitation_result = wpas_invitation_result;
3883 p2p.get_noa = wpas_get_noa;
b1aebbc4 3884 p2p.go_connected = wpas_go_connected;
c64e3a08 3885 p2p.presence_resp = wpas_presence_resp;
a2d63657 3886 p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
0f1034e3 3887 p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
b22128ef
JM		 3888
3889 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
d7e70476 3890 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
b22128ef 3891 p2p.dev_name = wpa_s->conf->device_name;
b6e01800
JM		 3892 p2p.manufacturer = wpa_s->conf->manufacturer;
3893 p2p.model_name = wpa_s->conf->model_name;
3894 p2p.model_number = wpa_s->conf->model_number;
3895 p2p.serial_number = wpa_s->conf->serial_number;
3896 if (wpa_s->wps) {
3897 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
3898 p2p.config_methods = wpa_s->wps->config_methods;
3899 }
b22128ef
JM		 3900
3901 if (wpa_s->conf->p2p_listen_reg_class &&
3902 wpa_s->conf->p2p_listen_channel) {
3903 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
3904 p2p.channel = wpa_s->conf->p2p_listen_channel;
e3bd6e9d 3905 p2p.channel_forced = 1;
b22128ef
JM		 3906 } else {
3907 p2p.reg_class = 81;
3908 /*
3909 * Pick one of the social channels randomly as the listen
3910 * channel.
3911 */
3912 os_get_random((u8 *) &r, sizeof(r));
3913 p2p.channel = 1 + (r % 3) * 5;
e3bd6e9d 3914 p2p.channel_forced = 0;
b22128ef 3915 }
7cfc4ac3 3916 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
b22128ef
JM		 3917
3918 if (wpa_s->conf->p2p_oper_reg_class &&
3919 wpa_s->conf->p2p_oper_channel) {
3920 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
3921 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 3922 p2p.cfg_op_channel = 1;
3923 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
3924 "%d:%d", p2p.op_reg_class, p2p.op_channel);
3925
b22128ef
JM		 3926 } else {
3927 p2p.op_reg_class = 81;
3928 /*
7cfc4ac3
AGS		 3929 * Use random operation channel from (1, 6, 11) if no other
3930 * preference is indicated.
b22128ef 3931 */
b7412dab 3932 os_get_random((u8 *) &r, sizeof(r));
7cfc4ac3
AGS		 3933 p2p.op_channel = 1 + (r % 3) * 5;
3934 p2p.cfg_op_channel = 0;
3935 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
3936 "%d:%d", p2p.op_reg_class, p2p.op_channel);
b22128ef 3937 }
010b5f9b
YW		 3938
3939 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
3940 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
3941 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
3942 }
3943
b22128ef
JM		 3944 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3945 os_memcpy(p2p.country, wpa_s->conf->country, 2);
3946 p2p.country[2] = 0x04;
3947 } else
aaca6505 3948 os_memcpy(p2p.country, "XX\x04", 3);
b22128ef 3949
51e9f228 3950 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
b22128ef
JM		 3951 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
3952 "channel list");
3953 return -1;
3954 }
3955
2f646b6e
JB		 3956 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
3957 WPS_DEV_TYPE_LEN);
b22128ef 3958
2f646b6e
JB		 3959 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
3960 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
3961 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
b22128ef
JM		 3962
3963 p2p.concurrent_operations = !!(wpa_s->drv_flags &
3964 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
3965
de979d8f 3966 p2p.max_peers = 100;
b22128ef
JM		 3967
3968 if (wpa_s->conf->p2p_ssid_postfix) {
3969 p2p.ssid_postfix_len =
3970 os_strlen(wpa_s->conf->p2p_ssid_postfix);
3971 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
3972 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
3973 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
3974 p2p.ssid_postfix_len);
3975 }
3976
0f66abd2
SS		 3977 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
3978
96beff11
JM		 3979 p2p.max_listen = wpa_s->max_remain_on_chan;
3980
1b928f96
JM		 3981 if (wpa_s->conf->p2p_passphrase_len >= 8 &&
3982 wpa_s->conf->p2p_passphrase_len <= 63)
3983 p2p.passphrase_len = wpa_s->conf->p2p_passphrase_len;
3984 else
3985 p2p.passphrase_len = 8;
3986
b22128ef
JM		 3987 global->p2p = p2p_init(&p2p);
3988 if (global->p2p == NULL)
3989 return -1;
ab28911d 3990 global->p2p_init_wpa_s = wpa_s;
b22128ef 3991
f95cac27
JMB		 3992 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
3993 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
3994 continue;
3995 p2p_add_wps_vendor_extension(
3996 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
3997 }
3998
556b30da
JM		 3999 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
4000
b22128ef
JM		 4001 return 0;
4002}
4003
4004
4005/**
4006 * wpas_p2p_deinit - Deinitialize per-interface P2P data
4007 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4008 *
4009 * This function deinitialize per-interface P2P data.
4010 */
4011void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
4012{
4013 if (wpa_s->driver && wpa_s->drv_priv)
4014 wpa_drv_probe_req_report(wpa_s, 0);
ec437d9e
JJ		 4015
4016 if (wpa_s->go_params) {
4017 /* Clear any stored provisioning info */
4018 p2p_clear_provisioning_info(
4019 wpa_s->global->p2p,
10531d21 4020 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 4021 }
4022
b22128ef
JM		 4023 os_free(wpa_s->go_params);
4024 wpa_s->go_params = NULL;
fb2ac53d 4025 eloop_cancel_timeout(wpas_p2p_psk_failure_removal, wpa_s, NULL);
b22128ef 4026 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 4027 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 4028 wpa_s->p2p_long_listen = 0;
4029 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3071e181 4030 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
b22128ef 4031 wpas_p2p_remove_pending_group_interface(wpa_s);
8567866d 4032 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
e1d1c8e2 4033 wpas_p2p_listen_work_done(wpa_s);
e05e1308
JM		 4034 if (wpa_s->p2p_send_action_work) {
4035 os_free(wpa_s->p2p_send_action_work->ctx);
4036 radio_work_done(wpa_s->p2p_send_action_work);
4037 wpa_s->p2p_send_action_work = NULL;
4038 }
4039 eloop_cancel_timeout(wpas_p2p_send_action_work_timeout, wpa_s, NULL);
b22128ef 4040
db6ae69e
JM		 4041 wpabuf_free(wpa_s->p2p_oob_dev_pw);
4042 wpa_s->p2p_oob_dev_pw = NULL;
4043
b22128ef
JM		 4044 /* TODO: remove group interface from the driver if this wpa_s instance
4045 * is on top of a P2P group interface */
4046}
4047
4048
4049/**
4050 * wpas_p2p_deinit_global - Deinitialize global P2P module
4051 * @global: Pointer to global data from wpa_supplicant_init()
4052 *
4053 * This function deinitializes the global (per device) P2P module.
4054 */
bd10d938 4055static void wpas_p2p_deinit_global(struct wpa_global *global)
b22128ef
JM		 4056{
4057 struct wpa_supplicant *wpa_s, *tmp;
b22128ef 4058
bf428a73
JM		 4059 wpa_s = global->ifaces;
4060 if (wpa_s)
4061 wpas_p2p_service_flush(wpa_s);
4062
b22128ef
JM		 4063 if (global->p2p == NULL)
4064 return;
4065
4066 /* Remove remaining P2P group interfaces */
b22128ef
JM		 4067 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
4068 wpa_s = wpa_s->next;
4069 while (wpa_s) {
b22128ef
JM		 4070 tmp = global->ifaces;
4071 while (tmp &&
4072 (tmp == wpa_s ||
4073 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
4074 tmp = tmp->next;
4075 }
4076 if (tmp == NULL)
4077 break;
103b8f4d
NS		 4078 /* Disconnect from the P2P group and deinit the interface */
4079 wpas_p2p_disconnect(tmp);
b22128ef
JM		 4080 }
4081
743ef799
JM		 4082 /*
4083 * Deinit GO data on any possibly remaining interface (if main
4084 * interface is used as GO).
4085 */
4086 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4087 if (wpa_s->ap_iface)
4088 wpas_p2p_group_deinit(wpa_s);
4089 }
4090
b22128ef
JM		 4091 p2p_deinit(global->p2p);
4092 global->p2p = NULL;
ab28911d 4093 global->p2p_init_wpa_s = NULL;
b22128ef
JM		 4094}
4095
4096
4097static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
4098{
bb4028f1
AS		 4099 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4100 wpa_s->conf->p2p_no_group_iface)
d76cd41a 4101 return 0; /* separate interface disabled per configuration */
971e357f
JM		 4102 if (wpa_s->drv_flags &
4103 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
4104 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
b22128ef
JM		 4105 return 1; /* P2P group requires a new interface in every case
4106 */
4107 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
4108 return 0; /* driver does not support concurrent operations */
4109 if (wpa_s->global->ifaces->next)
4110 return 1; /* more that one interface already in use */
4111 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4112 return 1; /* this interface is already in use */
4113 return 0;
4114}
4115
4116
4117static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
4118 const u8 *peer_addr,
4119 enum p2p_wps_method wps_method,
4120 int go_intent, const u8 *own_interface_addr,
23c84252 4121 unsigned int force_freq, int persistent_group,
04a3e69d 4122 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 4123{
acc247b2
JM		 4124 if (persistent_group && wpa_s->conf->persistent_reconnect)
4125 persistent_group = 2;
4126
4f219667
JM		 4127 /*
4128 * Increase GO config timeout if HT40 is used since it takes some time
4129 * to scan channels for coex purposes before the BSS can be started.
4130 */
4131 p2p_set_config_timeout(wpa_s->global->p2p,
4132 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
4133
b22128ef
JM		 4134 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
4135 go_intent, own_interface_addr, force_freq,
23c84252 4136 persistent_group, ssid ? ssid->ssid : NULL,
3bc462cb 4137 ssid ? ssid->ssid_len : 0,
db6ae69e
JM		 4138 wpa_s->p2p_pd_before_go_neg, pref_freq,
4139 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4140 0);
b22128ef
JM		 4141}
4142
4143
4144static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
4145 const u8 *peer_addr,
4146 enum p2p_wps_method wps_method,
4147 int go_intent, const u8 *own_interface_addr,
23c84252 4148 unsigned int force_freq, int persistent_group,
04a3e69d 4149 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 4150{
acc247b2
JM		 4151 if (persistent_group && wpa_s->conf->persistent_reconnect)
4152 persistent_group = 2;
4153
b22128ef
JM		 4154 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
4155 go_intent, own_interface_addr, force_freq,
23c84252 4156 persistent_group, ssid ? ssid->ssid : NULL,
db6ae69e
JM		 4157 ssid ? ssid->ssid_len : 0, pref_freq,
4158 wps_method == WPS_NFC ? wpa_s->p2p_oob_dev_pw_id :
4159 0);
b22128ef
JM		 4160}
4161
4162
9b1ab931
JM		 4163static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
4164{
4165 wpa_s->p2p_join_scan_count++;
4166 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
4167 wpa_s->p2p_join_scan_count);
4168 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
4169 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
4170 " for join operationg - stop join attempt",
4171 MAC2STR(wpa_s->pending_join_iface_addr));
4172 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
0918c4bf
JM		 4173 if (wpa_s->p2p_auto_pd) {
4174 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 4175 wpa_msg_global(wpa_s, MSG_INFO,
4176 P2P_EVENT_PROV_DISC_FAILURE
4177 " p2p_dev_addr=" MACSTR " status=N/A",
4178 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 4179 return;
4180 }
92c4465b
JM		 4181 wpa_msg_global(wpa_s->parent, MSG_INFO,
4182 P2P_EVENT_GROUP_FORMATION_FAILURE);
9b1ab931
JM		 4183 }
4184}
4185
4186
4b156206
JM		 4187static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
4188{
a0c90bb0
IP		 4189 int res;
4190 unsigned int num, i;
4191 struct wpa_used_freq_data *freqs;
4b156206 4192
0d08efa4
IP		 4193 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
4194 /* Multiple channels are supported and not all are in use */
4b156206 4195 return 0;
0d08efa4 4196 }
4b156206 4197
a0c90bb0
IP		 4198 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4199 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 4200 if (!freqs)
4201 return 1;
86ae2e8a 4202
0d08efa4
IP		 4203 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4204 wpa_s->num_multichan_concurrent);
4b156206 4205
0d08efa4 4206 for (i = 0; i < num; i++) {
a0c90bb0 4207 if (freqs[i].freq == freq) {
0d08efa4
IP		 4208 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
4209 freq);
4210 res = 0;
4211 goto exit_free;
4212 }
4b156206
JM		 4213 }
4214
a0c90bb0 4215 wpa_printf(MSG_DEBUG, "P2P: No valid operating frequencies");
0d08efa4
IP		 4216 res = 1;
4217
4218exit_free:
4219 os_free(freqs);
4220 return res;
4b156206
JM		 4221}
4222
4223
b31be3a0
JM		 4224static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
4225 const u8 *peer_dev_addr)
4226{
4227 struct wpa_bss *bss;
4228 int updated;
4229
4230 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
4231 if (bss == NULL)
aa9bb764 4232 return -1;
b31be3a0
JM		 4233 if (bss->last_update_idx < wpa_s->bss_update_idx) {
4234 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
4235 "last scan");
4236 return 0;
4237 }
4238
acb69cec
JB		 4239 updated = os_reltime_before(&wpa_s->p2p_auto_started,
4240 &bss->last_update);
b31be3a0
JM		 4241 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
4242 "%ld.%06ld (%supdated in last scan)",
4243 bss->last_update.sec, bss->last_update.usec,
4244 updated ? "": "not ");
4245
4246 return updated;
4247}
4248
4249
ef922c4a
JM		 4250static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
4251 struct wpa_scan_results *scan_res)
b22128ef 4252{
c48414af 4253 struct wpa_bss *bss = NULL;
f8d0131a 4254 int freq;
54960629 4255 u8 iface_addr[ETH_ALEN];
b22128ef 4256
ef922c4a 4257 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 4258
ef922c4a
JM		 4259 if (wpa_s->global->p2p_disabled)
4260 return;
b22128ef 4261
b31be3a0
JM		 4262 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
4263 scan_res ? (int) scan_res->num : -1,
4264 wpa_s->p2p_auto_join ? "auto_" : "");
ef922c4a
JM		 4265
4266 if (scan_res)
4267 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 4268
0918c4bf
JM		 4269 if (wpa_s->p2p_auto_pd) {
4270 int join = wpas_p2p_peer_go(wpa_s,
4271 wpa_s->pending_join_dev_addr);
84286a22
SDU		 4272 if (join == 0 &&
4273 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
4274 wpa_s->auto_pd_scan_retry++;
702621e6
JM		 4275 bss = wpa_bss_get_bssid_latest(
4276 wpa_s, wpa_s->pending_join_dev_addr);
84286a22
SDU		 4277 if (bss) {
4278 freq = bss->freq;
4279 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
4280 "the peer " MACSTR " at %d MHz",
4281 wpa_s->auto_pd_scan_retry,
4282 MAC2STR(wpa_s->
4283 pending_join_dev_addr),
4284 freq);
c48414af 4285 wpas_p2p_join_scan_req(wpa_s, freq, NULL, 0);
84286a22
SDU		 4286 return;
4287 }
4288 }
4289
aa9bb764
JM		 4290 if (join < 0)
4291 join = 0;
84286a22 4292
0918c4bf
JM		 4293 wpa_s->p2p_auto_pd = 0;
4294 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
4295 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
4296 MAC2STR(wpa_s->pending_join_dev_addr), join);
4297 if (p2p_prov_disc_req(wpa_s->global->p2p,
4298 wpa_s->pending_join_dev_addr,
4299 wpa_s->pending_pd_config_methods, join,
67527166 4300 0, wpa_s->user_initiated_pd) < 0) {
0918c4bf 4301 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 4302 wpa_msg_global(wpa_s, MSG_INFO,
4303 P2P_EVENT_PROV_DISC_FAILURE
4304 " p2p_dev_addr=" MACSTR " status=N/A",
4305 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 4306 }
4307 return;
4308 }
4309
b31be3a0 4310 if (wpa_s->p2p_auto_join) {
aa9bb764
JM		 4311 int join = wpas_p2p_peer_go(wpa_s,
4312 wpa_s->pending_join_dev_addr);
4313 if (join < 0) {
b31be3a0
JM		 4314 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
4315 "running a GO -> use GO Negotiation");
4316 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
4317 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
4318 wpa_s->p2p_persistent_group, 0, 0, 0,
4319 wpa_s->p2p_go_intent,
23c84252 4320 wpa_s->p2p_connect_freq,
3bc462cb 4321 wpa_s->p2p_persistent_id,
e2308e4b 4322 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 4323 wpa_s->p2p_go_ht40,
4324 wpa_s->p2p_go_vht);
b31be3a0
JM		 4325 return;
4326 }
4327
aa9bb764
JM		 4328 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
4329 "try to join the group", join ? "" :
4330 " in older scan");
4331 if (!join)
4332 wpa_s->p2p_fallback_to_go_neg = 1;
b31be3a0
JM		 4333 }
4334
f8d0131a
JM		 4335 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4336 wpa_s->pending_join_iface_addr);
54960629
AL		 4337 if (freq < 0 &&
4338 p2p_get_interface_addr(wpa_s->global->p2p,
4339 wpa_s->pending_join_dev_addr,
4340 iface_addr) == 0 &&
4341 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
4342 {
4343 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
4344 "address for join from " MACSTR " to " MACSTR
4345 " based on newly discovered P2P peer entry",
4346 MAC2STR(wpa_s->pending_join_iface_addr),
4347 MAC2STR(iface_addr));
4348 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
4349 ETH_ALEN);
4350
4351 freq = p2p_get_oper_freq(wpa_s->global->p2p,
4352 wpa_s->pending_join_iface_addr);
4353 }
f8d0131a
JM		 4354 if (freq >= 0) {
4355 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
4356 "from P2P peer table: %d MHz", freq);
4357 }
c48414af
JM		 4358 if (wpa_s->p2p_join_ssid_len) {
4359 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4360 MACSTR " and SSID %s",
4361 MAC2STR(wpa_s->pending_join_iface_addr),
4362 wpa_ssid_txt(wpa_s->p2p_join_ssid,
4363 wpa_s->p2p_join_ssid_len));
4364 bss = wpa_bss_get(wpa_s, wpa_s->pending_join_iface_addr,
4365 wpa_s->p2p_join_ssid,
4366 wpa_s->p2p_join_ssid_len);
4367 }
4368 if (!bss) {
4369 wpa_printf(MSG_DEBUG, "P2P: Trying to find target GO BSS entry based on BSSID "
4370 MACSTR, MAC2STR(wpa_s->pending_join_iface_addr));
4371 bss = wpa_bss_get_bssid_latest(wpa_s,
4372 wpa_s->pending_join_iface_addr);
4373 }
b22128ef 4374 if (bss) {
f8d0131a
JM		 4375 freq = bss->freq;
4376 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
d2858883
JM		 4377 "from BSS table: %d MHz (SSID %s)", freq,
4378 wpa_ssid_txt(bss->ssid, bss->ssid_len));
f8d0131a
JM		 4379 }
4380 if (freq > 0) {
b22128ef
JM		 4381 u16 method;
4382
4b156206 4383 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
92c4465b
JM		 4384 wpa_msg_global(wpa_s->parent, MSG_INFO,
4385 P2P_EVENT_GROUP_FORMATION_FAILURE
4386 "reason=FREQ_CONFLICT");
4b156206
JM		 4387 return;
4388 }
4389
b22128ef
JM		 4390 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
4391 "prior to joining an existing group (GO " MACSTR
4392 " freq=%u MHz)",
f8d0131a 4393 MAC2STR(wpa_s->pending_join_dev_addr), freq);
b22128ef
JM		 4394 wpa_s->pending_pd_before_join = 1;
4395
ef922c4a 4396 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 4397 case WPS_PIN_DISPLAY:
4398 method = WPS_CONFIG_KEYPAD;
4399 break;
4400 case WPS_PIN_KEYPAD:
4401 method = WPS_CONFIG_DISPLAY;
4402 break;
4403 case WPS_PBC:
4404 method = WPS_CONFIG_PUSHBUTTON;
4405 break;
4406 default:
4407 method = 0;
4408 break;
4409 }
4410
ec437d9e
JJ		 4411 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
4412 wpa_s->pending_join_dev_addr) ==
4413 method)) {
4414 /*
4415 * We have already performed provision discovery for
4416 * joining the group. Proceed directly to join
4417 * operation without duplicated provision discovery. */
e3a0706b 4418 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
ec437d9e
JJ		 4419 "with " MACSTR " already done - proceed to "
4420 "join",
4421 MAC2STR(wpa_s->pending_join_dev_addr));
4422 wpa_s->pending_pd_before_join = 0;
4423 goto start;
4424 }
4425
ef922c4a 4426 if (p2p_prov_disc_req(wpa_s->global->p2p,
1ef2f7ff 4427 wpa_s->pending_join_dev_addr, method, 1,
67527166 4428 freq, wpa_s->user_initiated_pd) < 0) {
b22128ef
JM		 4429 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
4430 "Discovery Request before joining an "
4431 "existing group");
4432 wpa_s->pending_pd_before_join = 0;
4433 goto start;
4434 }
ef922c4a 4435 return;
b22128ef
JM		 4436 }
4437
9b1ab931
JM		 4438 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
4439 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4440 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
4441 wpas_p2p_check_join_scan_limit(wpa_s);
4442 return;
b22128ef
JM		 4443
4444start:
4445 /* Start join operation immediately */
23318bea 4446 wpas_p2p_join_start(wpa_s, 0, NULL, 0);
ef922c4a
JM		 4447}
4448
4449
c48414af
JM		 4450static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
4451 const u8 *ssid, size_t ssid_len)
ef922c4a 4452{
ef922c4a
JM		 4453 int ret;
4454 struct wpa_driver_scan_params params;
4455 struct wpabuf *wps_ie, *ies;
206e1f42 4456 size_t ielen;
84286a22 4457 int freqs[2] = { 0, 0 };
ef922c4a
JM		 4458
4459 os_memset(&params, 0, sizeof(params));
4460
4461 /* P2P Wildcard SSID */
4462 params.num_ssids = 1;
c48414af
JM		 4463 if (ssid && ssid_len) {
4464 params.ssids[0].ssid = ssid;
4465 params.ssids[0].ssid_len = ssid_len;
4466 os_memcpy(wpa_s->p2p_join_ssid, ssid, ssid_len);
4467 wpa_s->p2p_join_ssid_len = ssid_len;
4468 } else {
4469 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
4470 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
4471 wpa_s->p2p_join_ssid_len = 0;
4472 }
ef922c4a
JM		 4473
4474 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 4475 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
4476 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4477 NULL);
ef922c4a
JM		 4478 if (wps_ie == NULL) {
4479 wpas_p2p_scan_res_join(wpa_s, NULL);
4480 return;
4481 }
4482
206e1f42
JM		 4483 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4484 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
ef922c4a
JM		 4485 if (ies == NULL) {
4486 wpabuf_free(wps_ie);
4487 wpas_p2p_scan_res_join(wpa_s, NULL);
4488 return;
4489 }
4490 wpabuf_put_buf(ies, wps_ie);
4491 wpabuf_free(wps_ie);
4492
6d92fa6e 4493 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
ef922c4a 4494
47185fc7 4495 params.p2p_probe = 1;
ef922c4a
JM		 4496 params.extra_ies = wpabuf_head(ies);
4497 params.extra_ies_len = wpabuf_len(ies);
37b4198a
JJ		 4498
4499 if (!freq) {
4500 int oper_freq;
4501 /*
4502 * If freq is not provided, check the operating freq of the GO
4503 * and use a single channel scan on if possible.
4504 */
4505 oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
4506 wpa_s->pending_join_iface_addr);
4507 if (oper_freq > 0)
4508 freq = oper_freq;
4509 }
84286a22
SDU		 4510 if (freq > 0) {
4511 freqs[0] = freq;
4512 params.freqs = freqs;
4513 }
ef922c4a
JM		 4514
4515 /*
4516 * Run a scan to update BSS table and start Provision Discovery once
4517 * the new scan results become available.
4518 */
17fbb751 4519 ret = wpa_drv_scan(wpa_s, &params);
4342326f 4520 if (!ret) {
acb69cec 4521 os_get_reltime(&wpa_s->scan_trigger_time);
205e6474 4522 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
a5f40eff 4523 wpa_s->own_scan_requested = 1;
4342326f 4524 }
ef922c4a
JM		 4525
4526 wpabuf_free(ies);
4527
4528 if (ret) {
4529 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4530 "try again later");
4531 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4532 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
9b1ab931 4533 wpas_p2p_check_join_scan_limit(wpa_s);
ef922c4a
JM		 4534 }
4535}
4536
4537
84286a22
SDU		 4538static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4539{
4540 struct wpa_supplicant *wpa_s = eloop_ctx;
c48414af 4541 wpas_p2p_join_scan_req(wpa_s, 0, NULL, 0);
84286a22
SDU		 4542}
4543
4544
ef922c4a 4545static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0 4546 const u8 *dev_addr, enum p2p_wps_method wps_method,
23318bea
JM		 4547 int auto_join, int op_freq,
4548 const u8 *ssid, size_t ssid_len)
ef922c4a
JM		 4549{
4550 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
23318bea
JM		 4551 MACSTR " dev " MACSTR " op_freq=%d)%s",
4552 MAC2STR(iface_addr), MAC2STR(dev_addr), op_freq,
b31be3a0 4553 auto_join ? " (auto_join)" : "");
c48414af
JM		 4554 if (ssid && ssid_len) {
4555 wpa_printf(MSG_DEBUG, "P2P: Group SSID specified: %s",
4556 wpa_ssid_txt(ssid, ssid_len));
4557 }
ef922c4a 4558
0918c4bf 4559 wpa_s->p2p_auto_pd = 0;
b31be3a0 4560 wpa_s->p2p_auto_join = !!auto_join;
ef922c4a
JM		 4561 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4562 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4563 wpa_s->pending_join_wps_method = wps_method;
4564
4565 /* Make sure we are not running find during connection establishment */
4566 wpas_p2p_stop_find(wpa_s);
4567
9b1ab931 4568 wpa_s->p2p_join_scan_count = 0;
23318bea 4569 wpas_p2p_join_scan_req(wpa_s, op_freq, ssid, ssid_len);
ef922c4a 4570 return 0;
b22128ef
JM		 4571}
4572
4573
23318bea
JM		 4574static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
4575 const u8 *ssid, size_t ssid_len)
b22128ef
JM		 4576{
4577 struct wpa_supplicant *group;
4578 struct p2p_go_neg_results res;
8e64f258 4579 struct wpa_bss *bss;
b22128ef
JM		 4580
4581 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4582 if (group == NULL)
4583 return -1;
3c5126a4 4584 if (group != wpa_s) {
b22128ef
JM		 4585 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4586 sizeof(group->p2p_pin));
3c5126a4 4587 group->p2p_wps_method = wpa_s->p2p_wps_method;
2b79164f
JM		 4588 } else {
4589 /*
4590 * Need to mark the current interface for p2p_group_formation
4591 * when a separate group interface is not used. This is needed
4592 * to allow p2p_cancel stop a pending p2p_connect-join.
4593 * wpas_p2p_init_group_interface() addresses this for the case
4594 * where a separate group interface is used.
4595 */
4596 wpa_s->global->p2p_group_formation = wpa_s;
3c5126a4 4597 }
b22128ef
JM		 4598
4599 group->p2p_in_provisioning = 1;
aa9bb764 4600 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
b22128ef
JM		 4601
4602 os_memset(&res, 0, sizeof(res));
23318bea 4603 os_memcpy(res.peer_device_addr, wpa_s->pending_join_dev_addr, ETH_ALEN);
b22128ef
JM		 4604 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4605 ETH_ALEN);
4606 res.wps_method = wpa_s->pending_join_wps_method;
23318bea
JM		 4607 if (freq && ssid && ssid_len) {
4608 res.freq = freq;
4609 res.ssid_len = ssid_len;
4610 os_memcpy(res.ssid, ssid, ssid_len);
4611 } else {
4612 bss = wpa_bss_get_bssid_latest(wpa_s,
4613 wpa_s->pending_join_iface_addr);
4614 if (bss) {
4615 res.freq = bss->freq;
4616 res.ssid_len = bss->ssid_len;
4617 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
4618 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency from BSS table: %d MHz (SSID %s)",
4619 bss->freq,
4620 wpa_ssid_txt(bss->ssid, bss->ssid_len));
4621 }
8e64f258
JM		 4622 }
4623
e91829f9
JM		 4624 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4625 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4626 "starting client");
4627 wpa_drv_cancel_remain_on_channel(wpa_s);
4628 wpa_s->off_channel_freq = 0;
4629 wpa_s->roc_waiting_drv_freq = 0;
4630 }
b22128ef
JM		 4631 wpas_start_wps_enrollee(group, &res);
4632
3094d483
JM		 4633 /*
4634 * Allow a longer timeout for join-a-running-group than normal 15
4635 * second group formation timeout since the GO may not have authorized
4636 * our connection yet.
4637 */
4638 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4639 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4640 wpa_s, NULL);
4641
b22128ef
JM		 4642 return 0;
4643}
4644
4645
5de4b721 4646static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
51e9f228 4647 int *force_freq, int *pref_freq, int go)
5de4b721 4648{
a0c90bb0
IP		 4649 struct wpa_used_freq_data *freqs;
4650 int res, best_freq, num_unused;
0d08efa4
IP		 4651 unsigned int freq_in_use = 0, num, i;
4652
a0c90bb0
IP		 4653 freqs = os_calloc(wpa_s->num_multichan_concurrent,
4654 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 4655 if (!freqs)
4656 return -1;
4657
a0c90bb0
IP		 4658 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4659 wpa_s->num_multichan_concurrent);
4660
4661 /*
4662 * It is possible that the total number of used frequencies is bigger
4663 * than the number of frequencies used for P2P, so get the system wide
4664 * number of unused frequencies.
4665 */
4666 num_unused = wpas_p2p_num_unused_channels(wpa_s);
4667
99d7c762 4668 wpa_printf(MSG_DEBUG,
a0c90bb0
IP		 4669 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u num_unused=%d",
4670 freq, wpa_s->num_multichan_concurrent, num, num_unused);
0d08efa4 4671
5de4b721 4672 if (freq > 0) {
51e9f228
JM		 4673 int ret;
4674 if (go)
4675 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4676 else
4677 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4678 if (!ret) {
5de4b721
JM		 4679 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
4680 "(%u MHz) is not supported for P2P uses",
4681 freq);
0d08efa4
IP		 4682 res = -3;
4683 goto exit_free;
5de4b721
JM		 4684 }
4685
0d08efa4 4686 for (i = 0; i < num; i++) {
a0c90bb0 4687 if (freqs[i].freq == freq)
0d08efa4
IP		 4688 freq_in_use = 1;
4689 }
4690
a0c90bb0 4691 if (num_unused <= 0 && !freq_in_use) {
0d08efa4
IP		 4692 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4693 freq);
4694 res = -2;
4695 goto exit_free;
5de4b721
JM		 4696 }
4697 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4698 "requested channel (%u MHz)", freq);
4699 *force_freq = freq;
0d08efa4
IP		 4700 goto exit_ok;
4701 }
4702
a0c90bb0 4703 best_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
0d08efa4 4704
a0c90bb0
IP		 4705 /* We have a candidate frequency to use */
4706 if (best_freq > 0) {
4707 if (*pref_freq == 0 && num_unused > 0) {
b17d89bd 4708 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
a0c90bb0
IP		 4709 best_freq);
4710 *pref_freq = best_freq;
b17d89bd
JM		 4711 } else {
4712 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
a0c90bb0
IP		 4713 best_freq);
4714 *force_freq = best_freq;
0d08efa4 4715 }
a0c90bb0
IP		 4716 } else if (num_unused > 0) {
4717 wpa_printf(MSG_DEBUG,
4718 "P2P: Current operating channels are not available for P2P. Try to use another channel");
4719 *force_freq = 0;
4720 } else {
4721 wpa_printf(MSG_DEBUG,
4722 "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
4723 res = -2;
4724 goto exit_free;
0d08efa4
IP		 4725 }
4726
4727exit_ok:
4728 res = 0;
4729exit_free:
4730 os_free(freqs);
4731 return res;
5de4b721
JM		 4732}
4733
4734
b22128ef
JM		 4735/**
4736 * wpas_p2p_connect - Request P2P Group Formation to be started
4737 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4738 * @peer_addr: Address of the peer P2P Device
4739 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
4740 * @persistent_group: Whether to create a persistent group
b31be3a0 4741 * @auto_join: Whether to select join vs. GO Negotiation automatically
b22128ef
JM		 4742 * @join: Whether to join an existing group (as a client) instead of starting
4743 * Group Owner negotiation; @peer_addr is BSSID in that case
4744 * @auth: Whether to only authorize the connection instead of doing that and
4745 * initiating Group Owner negotiation
4746 * @go_intent: GO Intent or -1 to use default
4747 * @freq: Frequency for the group or 0 for auto-selection
23c84252
JM		 4748 * @persistent_id: Persistent group credentials to use for forcing GO
4749 * parameters or -1 to generate new values (SSID/passphrase)
3bc462cb
JM		 4750 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
4751 * interoperability workaround when initiating group formation
e2308e4b 4752 * @ht40: Start GO with 40 MHz channel width
20ea1ca4 4753 * @vht: Start GO with VHT support
d054a462
JM		 4754 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
4755 * failure, -2 on failure due to channel not currently available,
4756 * -3 if forced channel is not supported
b22128ef
JM		 4757 */
4758int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4759 const char *pin, enum p2p_wps_method wps_method,
b31be3a0 4760 int persistent_group, int auto_join, int join, int auth,
e2308e4b 4761 int go_intent, int freq, int persistent_id, int pd,
20ea1ca4 4762 int ht40, int vht)
b22128ef 4763{
0d08efa4 4764 int force_freq = 0, pref_freq = 0;
5de4b721 4765 int ret = 0, res;
b22128ef 4766 enum wpa_driver_if_type iftype;
6cad95db 4767 const u8 *if_addr;
23c84252 4768 struct wpa_ssid *ssid = NULL;
b22128ef 4769
9526fd29
JM		 4770 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4771 return -1;
4772
23c84252
JM		 4773 if (persistent_id >= 0) {
4774 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
4775 if (ssid == NULL || ssid->disabled != 2 ||
4776 ssid->mode != WPAS_MODE_P2P_GO)
4777 return -1;
4778 }
4779
01a57fe4
JM		 4780 os_free(wpa_s->global->add_psk);
4781 wpa_s->global->add_psk = NULL;
4782
95fb2db2
JM		 4783 wpa_s->global->p2p_fail_on_wps_complete = 0;
4784
b22128ef
JM		 4785 if (go_intent < 0)
4786 go_intent = wpa_s->conf->p2p_go_intent;
4787
4788 if (!auth)
4789 wpa_s->p2p_long_listen = 0;
4790
3c5126a4 4791 wpa_s->p2p_wps_method = wps_method;
b31be3a0 4792 wpa_s->p2p_persistent_group = !!persistent_group;
23c84252 4793 wpa_s->p2p_persistent_id = persistent_id;
b31be3a0
JM		 4794 wpa_s->p2p_go_intent = go_intent;
4795 wpa_s->p2p_connect_freq = freq;
aa9bb764 4796 wpa_s->p2p_fallback_to_go_neg = 0;
3bc462cb 4797 wpa_s->p2p_pd_before_go_neg = !!pd;
e2308e4b 4798 wpa_s->p2p_go_ht40 = !!ht40;
20ea1ca4 4799 wpa_s->p2p_go_vht = !!vht;
3c5126a4 4800
b22128ef
JM		 4801 if (pin)
4802 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
4803 else if (wps_method == WPS_PIN_DISPLAY) {
4804 ret = wps_generate_pin();
4805 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
4806 ret);
4807 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
4808 wpa_s->p2p_pin);
4809 } else
4810 wpa_s->p2p_pin[0] = '\0';
4811
b31be3a0 4812 if (join || auto_join) {
4147a2cc 4813 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
108def93
JM		 4814 if (auth) {
4815 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
4816 "connect a running group from " MACSTR,
4817 MAC2STR(peer_addr));
4818 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
4819 return ret;
4820 }
4147a2cc 4821 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
b22128ef 4822 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4147a2cc 4823 iface_addr) < 0) {
b22128ef 4824 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4147a2cc
JM		 4825 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
4826 dev_addr);
4827 }
b31be3a0 4828 if (auto_join) {
acb69cec 4829 os_get_reltime(&wpa_s->p2p_auto_started);
b31be3a0
JM		 4830 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
4831 "%ld.%06ld",
4832 wpa_s->p2p_auto_started.sec,
4833 wpa_s->p2p_auto_started.usec);
4834 }
67527166 4835 wpa_s->user_initiated_pd = 1;
b31be3a0 4836 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
23318bea 4837 auto_join, freq, NULL, 0) < 0)
b22128ef
JM		 4838 return -1;
4839 return ret;
4840 }
4841
51e9f228
JM		 4842 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
4843 go_intent == 15);
5de4b721
JM		 4844 if (res)
4845 return res;
1b665cbf
JM		 4846 wpas_p2p_set_own_freq_preference(wpa_s,
4847 force_freq ? force_freq : pref_freq);
b22128ef
JM		 4848
4849 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
4850
6cad95db
JB		 4851 if (wpa_s->create_p2p_iface) {
4852 /* Prepare to add a new interface for the group */
4853 iftype = WPA_IF_P2P_GROUP;
4854 if (go_intent == 15)
4855 iftype = WPA_IF_P2P_GO;
4856 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
4857 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
4858 "interface for the group");
b22128ef 4859 return -1;
6cad95db 4860 }
b22128ef 4861
6cad95db
JB		 4862 if_addr = wpa_s->pending_interface_addr;
4863 } else
4864 if_addr = wpa_s->own_addr;
b22128ef
JM		 4865
4866 if (auth) {
4867 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
6cad95db 4868 go_intent, if_addr,
04a3e69d
JM		 4869 force_freq, persistent_group, ssid,
4870 pref_freq) < 0)
b22128ef
JM		 4871 return -1;
4872 return ret;
4873 }
6cad95db
JB		 4874
4875 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
4876 go_intent, if_addr, force_freq,
04a3e69d 4877 persistent_group, ssid, pref_freq) < 0) {
6cad95db
JB		 4878 if (wpa_s->create_p2p_iface)
4879 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 4880 return -1;
4881 }
4882 return ret;
4883}
4884
4885
4886/**
4887 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
4888 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4889 * @freq: Frequency of the channel in MHz
4890 * @duration: Duration of the stay on the channel in milliseconds
4891 *
4892 * This callback is called when the driver indicates that it has started the
4893 * requested remain-on-channel duration.
4894 */
4895void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4896 unsigned int freq, unsigned int duration)
4897{
9526fd29
JM		 4898 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4899 return;
b22128ef
JM		 4900 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
4901 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
4902 wpa_s->pending_listen_duration);
4903 wpa_s->pending_listen_freq = 0;
211d7ab3
JM		 4904 } else {
4905 wpa_printf(MSG_DEBUG, "P2P: Ignore remain-on-channel callback (off_channel_freq=%u pending_listen_freq=%d freq=%u duration=%u)",
4906 wpa_s->off_channel_freq, wpa_s->pending_listen_freq,
4907 freq, duration);
b22128ef
JM		 4908 }
4909}
4910
4911
4912static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
4913 unsigned int timeout)
4914{
4915 /* Limit maximum Listen state time based on driver limitation. */
4916 if (timeout > wpa_s->max_remain_on_chan)
4917 timeout = wpa_s->max_remain_on_chan;
4918
4919 return p2p_listen(wpa_s->global->p2p, timeout);
4920}
4921
4922
4923/**
4924 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
4925 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4926 * @freq: Frequency of the channel in MHz
4927 *
4928 * This callback is called when the driver indicates that a remain-on-channel
4929 * operation has been completed, i.e., the duration on the requested channel
4930 * has timed out.
4931 */
4932void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4933 unsigned int freq)
4934{
1cc3a29d 4935 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
11fb02be 4936 "(p2p_long_listen=%d ms pending_action_tx=%p)",
2f3101d8 4937 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
e1d1c8e2 4938 wpas_p2p_listen_work_done(wpa_s);
9526fd29
JM		 4939 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4940 return;
b22128ef
JM		 4941 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
4942 return; /* P2P module started a new operation */
2f3101d8 4943 if (offchannel_pending_action_tx(wpa_s))
b22128ef
JM		 4944 return;
4945 if (wpa_s->p2p_long_listen > 0)
11fb02be 4946 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
b22128ef
JM		 4947 if (wpa_s->p2p_long_listen > 0) {
4948 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
11fb02be 4949 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
0b5fb86a
SADR		 4950 } else {
4951 /*
4952 * When listen duration is over, stop listen & update p2p_state
4953 * to IDLE.
4954 */
4955 p2p_stop_listen(wpa_s->global->p2p);
b22128ef
JM		 4956 }
4957}
4958
4959
4960/**
4961 * wpas_p2p_group_remove - Remove a P2P group
4962 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4963 * @ifname: Network interface name of the group interface or "*" to remove all
4964 * groups
4965 * Returns: 0 on success, -1 on failure
4966 *
4967 * This function is used to remove a P2P group. This can be used to disconnect
4968 * from a group in which the local end is a P2P Client or to end a P2P Group in
4969 * case the local end is the Group Owner. If a virtual network interface was
4970 * created for this group, that interface will be removed. Otherwise, only the
4971 * configured P2P group network will be removed from the interface.
4972 */
4973int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
4974{
4975 struct wpa_global *global = wpa_s->global;
4976
4977 if (os_strcmp(ifname, "*") == 0) {
4978 struct wpa_supplicant *prev;
4979 wpa_s = global->ifaces;
4980 while (wpa_s) {
4981 prev = wpa_s;
4982 wpa_s = wpa_s->next;
d99ca89d
IP		 4983 if (prev->p2p_group_interface !=
4984 NOT_P2P_GROUP_INTERFACE ||
4985 (prev->current_ssid &&
4986 prev->current_ssid->p2p_group))
4987 wpas_p2p_disconnect(prev);
b22128ef
JM		 4988 }
4989 return 0;
4990 }
4991
4992 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4993 if (os_strcmp(wpa_s->ifname, ifname) == 0)
4994 break;
4995 }
4996
3103f345 4997 return wpas_p2p_disconnect(wpa_s);
b22128ef
JM		 4998}
4999
5000
4abc0424
WJL		 5001static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
5002{
5003 unsigned int r;
5004
5005 if (freq == 2) {
5006 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
5007 "band");
5008 if (wpa_s->best_24_freq > 0 &&
556b30da
JM		 5009 p2p_supported_freq_go(wpa_s->global->p2p,
5010 wpa_s->best_24_freq)) {
4abc0424
WJL		 5011 freq = wpa_s->best_24_freq;
5012 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
5013 "channel: %d MHz", freq);
5014 } else {
5015 os_get_random((u8 *) &r, sizeof(r));
5016 freq = 2412 + (r % 3) * 25;
5017 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
5018 "channel: %d MHz", freq);
5019 }
5020 }
5021
5022 if (freq == 5) {
5023 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
5024 "band");
5025 if (wpa_s->best_5_freq > 0 &&
556b30da 5026 p2p_supported_freq_go(wpa_s->global->p2p,
4abc0424
WJL		 5027 wpa_s->best_5_freq)) {
5028 freq = wpa_s->best_5_freq;
5029 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
5030 "channel: %d MHz", freq);
5031 } else {
5032 os_get_random((u8 *) &r, sizeof(r));
5033 freq = 5180 + (r % 4) * 20;
556b30da 5034 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4abc0424
WJL		 5035 wpa_printf(MSG_DEBUG, "P2P: Could not select "
5036 "5 GHz channel for P2P group");
5037 return -1;
5038 }
5039 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
5040 "channel: %d MHz", freq);
5041 }
5042 }
5043
556b30da 5044 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4abc0424
WJL		 5045 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
5046 "(%u MHz) is not supported for P2P uses",
5047 freq);
5048 return -1;
5049 }
5050
5051 return freq;
5052}
5053
5054
28812a89
IP		 5055static int wpas_p2p_select_freq_no_pref(struct wpa_supplicant *wpa_s,
5056 struct p2p_go_neg_results *params,
5057 const struct p2p_channels *channels)
5058{
5059 unsigned int i, r;
5060
5061 /* first try some random selection of the social channels */
5062 os_get_random((u8 *) &r, sizeof(r));
5063
5064 for (i = 0; i < 3; i++) {
5065 params->freq = 2412 + ((r + i) % 3) * 25;
5066 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5067 freq_included(channels, params->freq))
5068 goto out;
5069 }
5070
5071 /* try all channels in reg. class 81 */
5072 for (i = 0; i < 11; i++) {
5073 params->freq = 2412 + i * 5;
5074 if (!wpas_p2p_disallowed_freq(wpa_s->global, params->freq) &&
5075 freq_included(channels, params->freq))
5076 goto out;
5077 }
5078
5079 wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel allowed");
5080 return -1;
5081out:
5082 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference known)",
5083 params->freq);
5084 return 0;
5085}
5086
5087
b8349523
NKG		 5088static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
5089 struct p2p_go_neg_results *params,
20ea1ca4 5090 int freq, int ht40, int vht,
54733624 5091 const struct p2p_channels *channels)
b22128ef 5092{
a0c90bb0
IP		 5093 struct wpa_used_freq_data *freqs;
5094 unsigned int pref_freq, cand_freq;
0d08efa4 5095 unsigned int num, i;
b22128ef
JM		 5096
5097 os_memset(params, 0, sizeof(*params));
5098 params->role_go = 1;
7aeac985 5099 params->ht40 = ht40;
20ea1ca4 5100 params->vht = vht;
7cfc4ac3 5101 if (freq) {
54733624
JM		 5102 if (!freq_included(channels, freq)) {
5103 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
5104 "accepted", freq);
5105 return -1;
5106 }
7cfc4ac3
AGS		 5107 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
5108 "frequency %d MHz", freq);
b22128ef 5109 params->freq = freq;
7cfc4ac3
AGS		 5110 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
5111 wpa_s->conf->p2p_oper_channel >= 1 &&
54733624
JM		 5112 wpa_s->conf->p2p_oper_channel <= 11 &&
5113 freq_included(channels,
5114 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 5115 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 5116 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5117 "frequency %d MHz", params->freq);
54733624
JM		 5118 } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
5119 wpa_s->conf->p2p_oper_reg_class == 116 ||
5120 wpa_s->conf->p2p_oper_reg_class == 117 ||
5121 wpa_s->conf->p2p_oper_reg_class == 124 ||
5122 wpa_s->conf->p2p_oper_reg_class == 126 ||
5123 wpa_s->conf->p2p_oper_reg_class == 127) &&
5124 freq_included(channels,
5125 5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 5126 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 5127 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
5128 "frequency %d MHz", params->freq);
5129 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5130 wpa_s->best_overall_freq > 0 &&
556b30da
JM		 5131 p2p_supported_freq_go(wpa_s->global->p2p,
5132 wpa_s->best_overall_freq) &&
54733624 5133 freq_included(channels, wpa_s->best_overall_freq)) {
7cfc4ac3
AGS		 5134 params->freq = wpa_s->best_overall_freq;
5135 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
5136 "channel %d MHz", params->freq);
5137 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5138 wpa_s->best_24_freq > 0 &&
556b30da
JM		 5139 p2p_supported_freq_go(wpa_s->global->p2p,
5140 wpa_s->best_24_freq) &&
54733624 5141 freq_included(channels, wpa_s->best_24_freq)) {
7cfc4ac3
AGS		 5142 params->freq = wpa_s->best_24_freq;
5143 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
5144 "channel %d MHz", params->freq);
5145 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
5146 wpa_s->best_5_freq > 0 &&
556b30da
JM		 5147 p2p_supported_freq_go(wpa_s->global->p2p,
5148 wpa_s->best_5_freq) &&
54733624 5149 freq_included(channels, wpa_s->best_5_freq)) {
7cfc4ac3
AGS		 5150 params->freq = wpa_s->best_5_freq;
5151 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
5152 "channel %d MHz", params->freq);
c6ccf12d
SS		 5153 } else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
5154 channels))) {
5155 params->freq = pref_freq;
5156 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
5157 "channels", params->freq);
7cfc4ac3 5158 } else {
28812a89
IP		 5159 /* no preference, select some channel */
5160 if (wpas_p2p_select_freq_no_pref(wpa_s, params, channels) < 0)
6f3bc72b 5161 return -1;
7cfc4ac3
AGS		 5162 }
5163
a0c90bb0
IP		 5164 freqs = os_calloc(wpa_s->num_multichan_concurrent,
5165 sizeof(struct wpa_used_freq_data));
0d08efa4
IP		 5166 if (!freqs)
5167 return -1;
5168
a0c90bb0 5169 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
0d08efa4 5170 wpa_s->num_multichan_concurrent);
0d08efa4 5171
a0c90bb0
IP		 5172 cand_freq = wpas_p2p_pick_best_used_freq(wpa_s, freqs, num);
5173
5174 /* First try the best used frequency if possible */
5175 if (!freq && cand_freq > 0 && freq_included(channels, cand_freq)) {
5176 params->freq = cand_freq;
5177 } else if (!freq) {
5178 /* Try any of the used frequencies */
5179 for (i = 0; i < num; i++) {
5180 if (freq_included(channels, freqs[i].freq)) {
5181 wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
5182 freqs[i].freq);
5183 params->freq = freqs[i].freq;
5184 break;
5185 }
54733624 5186 }
b8349523 5187
a0c90bb0
IP		 5188 if (i == num) {
5189 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
7d669cf7 5190 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
a0c90bb0
IP		 5191 os_free(freqs);
5192 return -1;
5193 } else {
5194 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
5195 }
5196 }
5197 } else {
5198 for (i = 0; i < num; i++) {
5199 if (freqs[i].freq == freq)
5200 break;
5201 }
5202
5203 if (i == num) {
5204 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
5205 if (freq)
5206 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
5207 os_free(freqs);
5208 return -1;
5209 } else {
5210 wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
5211 }
0d08efa4
IP		 5212 }
5213 }
7d669cf7 5214
0d08efa4 5215 os_free(freqs);
b8349523 5216 return 0;
b22128ef
JM		 5217}
5218
5219
5220static struct wpa_supplicant *
5221wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
5222 int go)
5223{
5224 struct wpa_supplicant *group_wpa_s;
5225
ac06fb12
JM		 5226 if (!wpas_p2p_create_iface(wpa_s)) {
5227 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
5228 "operations");
bbc6c729 5229 wpa_s->p2p_first_connection_timeout = 0;
b22128ef 5230 return wpa_s;
ac06fb12 5231 }
b22128ef
JM		 5232
5233 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
ac06fb12 5234 WPA_IF_P2P_CLIENT) < 0) {
92c4465b
JM		 5235 wpa_msg_global(wpa_s, MSG_ERROR,
5236 "P2P: Failed to add group interface");
b22128ef 5237 return NULL;
ac06fb12 5238 }
b22128ef
JM		 5239 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
5240 if (group_wpa_s == NULL) {
92c4465b
JM		 5241 wpa_msg_global(wpa_s, MSG_ERROR,
5242 "P2P: Failed to initialize group interface");
b22128ef
JM		 5243 wpas_p2p_remove_pending_group_interface(wpa_s);
5244 return NULL;
5245 }
5246
ac06fb12
JM		 5247 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
5248 group_wpa_s->ifname);
bbc6c729 5249 group_wpa_s->p2p_first_connection_timeout = 0;
b22128ef
JM		 5250 return group_wpa_s;
5251}
5252
5253
5254/**
5255 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
5256 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
5257 * @persistent_group: Whether to create a persistent group
5258 * @freq: Frequency for the group or 0 to indicate no hardcoding
20ea1ca4
EP		 5259 * @ht40: Start GO with 40 MHz channel width
5260 * @vht: Start GO with VHT support
b22128ef
JM		 5261 * Returns: 0 on success, -1 on failure
5262 *
5263 * This function creates a new P2P group with the local end as the Group Owner,
5264 * i.e., without using Group Owner Negotiation.
5265 */
5266int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
20ea1ca4 5267 int freq, int ht40, int vht)
b22128ef
JM		 5268{
5269 struct p2p_go_neg_results params;
7cfc4ac3 5270
9526fd29
JM		 5271 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5272 return -1;
5273
01a57fe4
JM		 5274 os_free(wpa_s->global->add_psk);
5275 wpa_s->global->add_psk = NULL;
5276
2d4f15d6
JJ		 5277 /* Make sure we are not running find during connection establishment */
5278 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
8713a2e6 5279 wpas_p2p_stop_find_oper(wpa_s);
2d4f15d6 5280
4abc0424
WJL		 5281 freq = wpas_p2p_select_go_freq(wpa_s, freq);
5282 if (freq < 0)
4ae4650b 5283 return -1;
4ae4650b 5284
20ea1ca4 5285 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, NULL))
b8349523 5286 return -1;
f4329aa2 5287 if (params.freq &&
556b30da 5288 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
f4329aa2
JM		 5289 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
5290 "(%u MHz) is not supported for P2P uses",
5291 params.freq);
5292 return -1;
5293 }
b22128ef
JM		 5294 p2p_go_params(wpa_s->global->p2p, &params);
5295 params.persistent_group = persistent_group;
5296
5297 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
5298 if (wpa_s == NULL)
5299 return -1;
5300 wpas_start_wps_go(wpa_s, &params, 0);
5301
5302 return 0;
5303}
5304
5305
5306static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
41d5ce9e
RR		 5307 struct wpa_ssid *params, int addr_allocated,
5308 int freq)
b22128ef
JM		 5309{
5310 struct wpa_ssid *ssid;
5311
5312 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
5313 if (wpa_s == NULL)
5314 return -1;
5bf9a6c8 5315 wpa_s->p2p_last_4way_hs_fail = NULL;
b22128ef
JM		 5316
5317 wpa_supplicant_ap_deinit(wpa_s);
5318
5319 ssid = wpa_config_add_network(wpa_s->conf);
5320 if (ssid == NULL)
5321 return -1;
b22128ef
JM		 5322 wpa_config_set_network_defaults(ssid);
5323 ssid->temporary = 1;
5324 ssid->proto = WPA_PROTO_RSN;
5325 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
5326 ssid->group_cipher = WPA_CIPHER_CCMP;
5327 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
5328 ssid->ssid = os_malloc(params->ssid_len);
5329 if (ssid->ssid == NULL) {
b22128ef
JM		 5330 wpa_config_remove_network(wpa_s->conf, ssid->id);
5331 return -1;
5332 }
5333 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
5334 ssid->ssid_len = params->ssid_len;
5335 ssid->p2p_group = 1;
d1c8ac88 5336 ssid->export_keys = 1;
b22128ef
JM		 5337 if (params->psk_set) {
5338 os_memcpy(ssid->psk, params->psk, 32);
5339 ssid->psk_set = 1;
5340 }
5341 if (params->passphrase)
5342 ssid->passphrase = os_strdup(params->passphrase);
5343
b22128ef 5344 wpa_s->show_group_started = 1;
41d5ce9e
RR		 5345 wpa_s->p2p_in_invitation = 1;
5346 wpa_s->p2p_invite_go_freq = freq;
b22128ef 5347
91364b7f
SDU		 5348 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5349 NULL);
5350 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5351 wpas_p2p_group_formation_timeout,
5352 wpa_s->parent, NULL);
6fc48481
RR		 5353 wpa_supplicant_select_network(wpa_s, ssid);
5354
b22128ef
JM		 5355 return 0;
5356}
5357
5358
5359int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
5360 struct wpa_ssid *ssid, int addr_allocated,
062a7c0d
MS		 5361 int force_freq, int neg_freq, int ht40,
5362 int vht, const struct p2p_channels *channels,
bbc6c729 5363 int connection_timeout)
b22128ef
JM		 5364{
5365 struct p2p_go_neg_results params;
062a7c0d 5366 int go = 0, freq;
b22128ef
JM		 5367
5368 if (ssid->disabled != 2 || ssid->ssid == NULL)
5369 return -1;
5370
6c0da49f
JM		 5371 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
5372 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
5373 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
5374 "already running");
5375 return 0;
5376 }
5377
01a57fe4
JM		 5378 os_free(wpa_s->global->add_psk);
5379 wpa_s->global->add_psk = NULL;
5380
9d39057c 5381 /* Make sure we are not running find during connection establishment */
8713a2e6 5382 wpas_p2p_stop_find_oper(wpa_s);
b22128ef 5383
aa9bb764
JM		 5384 wpa_s->p2p_fallback_to_go_neg = 0;
5385
062a7c0d
MS		 5386 if (force_freq > 0) {
5387 freq = wpas_p2p_select_go_freq(wpa_s, force_freq);
5388 if (freq < 0)
5389 return -1;
5390 } else {
5391 freq = wpas_p2p_select_go_freq(wpa_s, neg_freq);
5392 if (freq < 0 || (freq > 0 && !freq_included(channels, freq)))
5393 freq = 0;
5394 }
4abc0424 5395
41d5ce9e
RR		 5396 if (ssid->mode == WPAS_MODE_INFRA)
5397 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated, freq);
5398
5399 if (ssid->mode != WPAS_MODE_P2P_GO)
5400 return -1;
5401
20ea1ca4 5402 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, channels))
b8349523 5403 return -1;
b22128ef
JM		 5404
5405 params.role_go = 1;
30c371e8
MH		 5406 params.psk_set = ssid->psk_set;
5407 if (params.psk_set)
5408 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
bb4d4deb
MH		 5409 if (ssid->passphrase) {
5410 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
5411 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
5412 "persistent group");
5413 return -1;
5414 }
5415 os_strlcpy(params.passphrase, ssid->passphrase,
5416 sizeof(params.passphrase));
b22128ef 5417 }
b22128ef
JM		 5418 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
5419 params.ssid_len = ssid->ssid_len;
5420 params.persistent_group = 1;
5421
5422 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
5423 if (wpa_s == NULL)
5424 return -1;
5425
bbc6c729 5426 wpa_s->p2p_first_connection_timeout = connection_timeout;
b22128ef
JM		 5427 wpas_start_wps_go(wpa_s, &params, 0);
5428
5429 return 0;
5430}
5431
5432
5433static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
5434 struct wpabuf *proberesp_ies)
5435{
5436 struct wpa_supplicant *wpa_s = ctx;
5437 if (wpa_s->ap_iface) {
5438 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
adc33680
JM		 5439 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
5440 wpabuf_free(beacon_ies);
5441 wpabuf_free(proberesp_ies);
5442 return;
5443 }
b22128ef
JM		 5444 if (beacon_ies) {
5445 wpabuf_free(hapd->p2p_beacon_ie);
5446 hapd->p2p_beacon_ie = beacon_ies;
5447 }
5448 wpabuf_free(hapd->p2p_probe_resp_ie);
5449 hapd->p2p_probe_resp_ie = proberesp_ies;
5450 } else {
5451 wpabuf_free(beacon_ies);
5452 wpabuf_free(proberesp_ies);
5453 }
5454 wpa_supplicant_ap_update_beacon(wpa_s);
5455}
5456
5457
3071e181
JM		 5458static void wpas_p2p_idle_update(void *ctx, int idle)
5459{
5460 struct wpa_supplicant *wpa_s = ctx;
5461 if (!wpa_s->ap_iface)
5462 return;
5463 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
95fb2db2
JM		 5464 if (idle) {
5465 if (wpa_s->global->p2p_fail_on_wps_complete &&
5466 wpa_s->p2p_in_provisioning) {
5467 wpas_p2p_grpform_fail_after_wps(wpa_s);
5468 return;
5469 }
3071e181 5470 wpas_p2p_set_group_idle_timeout(wpa_s);
95fb2db2 5471 } else
3071e181
JM		 5472 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
5473}
5474
5475
b22128ef 5476struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6f251b6b 5477 struct wpa_ssid *ssid)
b22128ef
JM		 5478{
5479 struct p2p_group *group;
5480 struct p2p_group_config *cfg;
5481
9526fd29
JM		 5482 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5483 return NULL;
3ac17eba 5484
b22128ef
JM		 5485 cfg = os_zalloc(sizeof(*cfg));
5486 if (cfg == NULL)
5487 return NULL;
5488
6f251b6b 5489 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
acc247b2 5490 cfg->persistent_group = 2;
6f251b6b 5491 else if (ssid->p2p_persistent_group)
acc247b2 5492 cfg->persistent_group = 1;
b22128ef 5493 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3f4ce13f
JM		 5494 if (wpa_s->max_stations &&
5495 wpa_s->max_stations < wpa_s->conf->max_num_sta)
5496 cfg->max_clients = wpa_s->max_stations;
5497 else
5498 cfg->max_clients = wpa_s->conf->max_num_sta;
6f251b6b
JM		 5499 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
5500 cfg->ssid_len = ssid->ssid_len;
ea43ad96 5501 cfg->freq = ssid->frequency;
b22128ef
JM		 5502 cfg->cb_ctx = wpa_s;
5503 cfg->ie_update = wpas_p2p_ie_update;
3071e181 5504 cfg->idle_update = wpas_p2p_idle_update;
b22128ef
JM		 5505
5506 group = p2p_group_init(wpa_s->global->p2p, cfg);
5507 if (group == NULL)
5508 os_free(cfg);
6f251b6b 5509 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
b22128ef
JM		 5510 p2p_group_notif_formation_done(group);
5511 wpa_s->p2p_group = group;
5512 return group;
5513}
5514
5515
5516void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
5517 int registrar)
5518{
10531d21
JM		 5519 struct wpa_ssid *ssid = wpa_s->current_ssid;
5520
b22128ef
JM		 5521 if (!wpa_s->p2p_in_provisioning) {
5522 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
5523 "provisioning not in progress");
5524 return;
5525 }
5526
10531d21
JM		 5527 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5528 u8 go_dev_addr[ETH_ALEN];
5529 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
5530 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
5531 ssid->ssid_len);
5532 /* Clear any stored provisioning info */
5533 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
5534 }
ec437d9e 5535
b22128ef
JM		 5536 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
5537 NULL);
41f85323 5538 wpa_s->p2p_go_group_formation_completed = 1;
361cdf34
JM		 5539 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
5540 /*
5541 * Use a separate timeout for initial data connection to
5542 * complete to allow the group to be removed automatically if
5543 * something goes wrong in this step before the P2P group idle
5544 * timeout mechanism is taken into use.
5545 */
41f85323
JM		 5546 wpa_dbg(wpa_s, MSG_DEBUG,
5547 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
5548 P2P_MAX_INITIAL_CONN_WAIT);
361cdf34
JM		 5549 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
5550 wpas_p2p_group_formation_timeout,
ad853202 5551 wpa_s->parent, NULL);
41f85323
JM		 5552 } else if (ssid) {
5553 /*
5554 * Use a separate timeout for initial data connection to
5555 * complete to allow the group to be removed automatically if
5556 * the client does not complete data connection successfully.
5557 */
5558 wpa_dbg(wpa_s, MSG_DEBUG,
5559 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
5560 P2P_MAX_INITIAL_CONN_WAIT_GO);
5561 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
5562 wpas_p2p_group_formation_timeout,
5563 wpa_s->parent, NULL);
5564 /*
5565 * Complete group formation on first successful data connection
5566 */
5567 wpa_s->p2p_go_group_formation_completed = 0;
361cdf34 5568 }
b22128ef
JM		 5569 if (wpa_s->global->p2p)
5570 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
5571 wpas_group_formation_completed(wpa_s, 1);
5572}
5573
5574
3734552f
JS		 5575void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
5576 struct wps_event_fail *fail)
5577{
5578 if (!wpa_s->p2p_in_provisioning) {
5579 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
5580 "provisioning not in progress");
5581 return;
5582 }
ec437d9e
JJ		 5583
5584 if (wpa_s->go_params) {
5585 p2p_clear_provisioning_info(
5586 wpa_s->global->p2p,
10531d21 5587 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 5588 }
5589
3734552f 5590 wpas_notify_p2p_wps_failed(wpa_s, fail);
95fb2db2
JM		 5591
5592 if (wpa_s == wpa_s->global->p2p_group_formation) {
5593 /*
5594 * Allow some time for the failed WPS negotiation exchange to
5595 * complete, but remove the group since group formation cannot
5596 * succeed after provisioning failure.
5597 */
5598 wpa_printf(MSG_DEBUG, "P2P: WPS step failed during group formation - reject connection from timeout");
5599 wpa_s->global->p2p_fail_on_wps_complete = 1;
5600 eloop_deplete_timeout(0, 50000,
5601 wpas_p2p_group_formation_timeout,
5602 wpa_s->parent, NULL);
5603 }
5604}
5605
5606
5607int wpas_p2p_wps_eapol_cb(struct wpa_supplicant *wpa_s)
5608{
5609 if (!wpa_s->global->p2p_fail_on_wps_complete ||
5610 !wpa_s->p2p_in_provisioning)
5611 return 0;
5612
5613 wpas_p2p_grpform_fail_after_wps(wpa_s);
5614
5615 return 1;
3734552f
JS		 5616}
5617
5618
b22128ef 5619int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
0918c4bf
JM		 5620 const char *config_method,
5621 enum wpas_p2p_prov_disc_use use)
b22128ef
JM		 5622{
5623 u16 config_methods;
5624
aa9bb764 5625 wpa_s->p2p_fallback_to_go_neg = 0;
0918c4bf 5626 wpa_s->pending_pd_use = NORMAL_PD;
8c5f7309 5627 if (os_strncmp(config_method, "display", 7) == 0)
b22128ef 5628 config_methods = WPS_CONFIG_DISPLAY;
8c5f7309 5629 else if (os_strncmp(config_method, "keypad", 6) == 0)
b22128ef 5630 config_methods = WPS_CONFIG_KEYPAD;
8c5f7309
JJ		 5631 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
5632 os_strncmp(config_method, "pushbutton", 10) == 0)
b22128ef 5633 config_methods = WPS_CONFIG_PUSHBUTTON;
8c5f7309
JJ		 5634 else {
5635 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
b22128ef 5636 return -1;
8c5f7309 5637 }
b22128ef 5638
0918c4bf
JM		 5639 if (use == WPAS_P2P_PD_AUTO) {
5640 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
5641 wpa_s->pending_pd_config_methods = config_methods;
5642 wpa_s->p2p_auto_pd = 1;
5643 wpa_s->p2p_auto_join = 0;
5644 wpa_s->pending_pd_before_join = 0;
84286a22 5645 wpa_s->auto_pd_scan_retry = 0;
0918c4bf
JM		 5646 wpas_p2p_stop_find(wpa_s);
5647 wpa_s->p2p_join_scan_count = 0;
acb69cec 5648 os_get_reltime(&wpa_s->p2p_auto_started);
84286a22
SDU		 5649 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
5650 wpa_s->p2p_auto_started.sec,
5651 wpa_s->p2p_auto_started.usec);
0918c4bf
JM		 5652 wpas_p2p_join_scan(wpa_s, NULL);
5653 return 0;
5654 }
5655
9526fd29 5656 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef
JM		 5657 return -1;
5658
5659 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
0918c4bf 5660 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
67527166 5661 0, 1);
b22128ef
JM		 5662}
5663
5664
5665int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
5666 char *end)
5667{
5668 return p2p_scan_result_text(ies, ies_len, buf, end);
5669}
5670
5671
1cc3a29d
JM		 5672static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
5673{
2f3101d8 5674 if (!offchannel_pending_action_tx(wpa_s))
1cc3a29d
JM		 5675 return;
5676
5677 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
5678 "operation request");
2f3101d8 5679 offchannel_clear_pending_action_tx(wpa_s);
1cc3a29d
JM		 5680}
5681
5682
b22128ef 5683int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
046ef4aa 5684 enum p2p_discovery_type type,
6d92fa6e 5685 unsigned int num_req_dev_types, const u8 *req_dev_types,
37448ede 5686 const u8 *dev_id, unsigned int search_delay)
b22128ef 5687{
1cc3a29d 5688 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef
JM		 5689 wpa_s->p2p_long_listen = 0;
5690
5bda43cd 5691 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
85a6cdb5 5692 wpa_s->p2p_in_provisioning)
9526fd29
JM		 5693 return -1;
5694
433cd2ce
JM		 5695 wpa_supplicant_cancel_sched_scan(wpa_s);
5696
046ef4aa 5697 return p2p_find(wpa_s->global->p2p, timeout, type,
37448ede
JM		 5698 num_req_dev_types, req_dev_types, dev_id,
5699 search_delay);
b22128ef
JM		 5700}
5701
5702
8713a2e6 5703static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
b22128ef 5704{
1cc3a29d 5705 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef 5706 wpa_s->p2p_long_listen = 0;
9d39057c 5707 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
ef922c4a 5708 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 5709
9526fd29
JM		 5710 if (wpa_s->global->p2p)
5711 p2p_stop_find(wpa_s->global->p2p);
b22128ef 5712
8713a2e6
JM		 5713 return 0;
5714}
5715
5716
5717void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
5718{
5719 if (wpas_p2p_stop_find_oper(wpa_s) > 0)
5720 return;
b22128ef
JM		 5721 wpas_p2p_remove_pending_group_interface(wpa_s);
5722}
5723
5724
5725static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
5726{
5727 struct wpa_supplicant *wpa_s = eloop_ctx;
5728 wpa_s->p2p_long_listen = 0;
5729}
5730
5731
5732int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
5733{
5734 int res;
5735
9526fd29
JM		 5736 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5737 return -1;
5738
433cd2ce 5739 wpa_supplicant_cancel_sched_scan(wpa_s);
1cc3a29d
JM		 5740 wpas_p2p_clear_pending_action_tx(wpa_s);
5741
b22128ef
JM		 5742 if (timeout == 0) {
5743 /*
5744 * This is a request for unlimited Listen state. However, at
5745 * least for now, this is mapped to a Listen state for one
5746 * hour.
5747 */
5748 timeout = 3600;
5749 }
5750 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5751 wpa_s->p2p_long_listen = 0;
5752
2bb747e2
JM		 5753 /*
5754 * Stop previous find/listen operation to avoid trying to request a new
5755 * remain-on-channel operation while the driver is still running the
5756 * previous one.
5757 */
5758 if (wpa_s->global->p2p)
5759 p2p_stop_find(wpa_s->global->p2p);
5760
b22128ef
JM		 5761 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
5762 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
11fb02be 5763 wpa_s->p2p_long_listen = timeout * 1000;
b22128ef
JM		 5764 eloop_register_timeout(timeout, 0,
5765 wpas_p2p_long_listen_timeout,
5766 wpa_s, NULL);
5767 }
5768
5769 return res;
5770}
5771
5772
4c08c0bd 5773int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 5774 u8 *buf, size_t len, int p2p_group)
5775{
4c08c0bd
JM		 5776 struct wpabuf *p2p_ie;
5777 int ret;
5778
b22128ef
JM		 5779 if (wpa_s->global->p2p_disabled)
5780 return -1;
5781 if (wpa_s->global->p2p == NULL)
5782 return -1;
e1f1509b
JM		 5783 if (bss == NULL)
5784 return -1;
b22128ef 5785
4c08c0bd
JM		 5786 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5787 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
5788 p2p_group, p2p_ie);
5789 wpabuf_free(p2p_ie);
5790
5791 return ret;
b22128ef
JM		 5792}
5793
5794
5795int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
04a85e44 5796 const u8 *dst, const u8 *bssid,
baf513d6 5797 const u8 *ie, size_t ie_len, int ssi_signal)
b22128ef
JM		 5798{
5799 if (wpa_s->global->p2p_disabled)
5800 return 0;
5801 if (wpa_s->global->p2p == NULL)
5802 return 0;
5803
2d43d37f
JB		 5804 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
5805 ie, ie_len)) {
5806 case P2P_PREQ_NOT_P2P:
5807 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
5808 ssi_signal);
5809 /* fall through */
5810 case P2P_PREQ_MALFORMED:
5811 case P2P_PREQ_NOT_LISTEN:
5812 case P2P_PREQ_NOT_PROCESSED:
5813 default: /* make gcc happy */
5814 return 0;
5815 case P2P_PREQ_PROCESSED:
5816 return 1;
5817 }
b22128ef
JM		 5818}
5819
5820
5821void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
5822 const u8 *sa, const u8 *bssid,
5823 u8 category, const u8 *data, size_t len, int freq)
5824{
5825 if (wpa_s->global->p2p_disabled)
5826 return;
5827 if (wpa_s->global->p2p == NULL)
5828 return;
5829
5830 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
5831 freq);
5832}
5833
5834
5835void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
5836{
5837 if (wpa_s->global->p2p_disabled)
5838 return;
5839 if (wpa_s->global->p2p == NULL)
5840 return;
5841
6d92fa6e 5842 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
b22128ef
JM		 5843}
5844
5845
bd10d938 5846static void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
b22128ef
JM		 5847{
5848 p2p_group_deinit(wpa_s->p2p_group);
5849 wpa_s->p2p_group = NULL;
a7fd39bb
JD		 5850
5851 wpa_s->ap_configured_cb = NULL;
5852 wpa_s->ap_configured_cb_ctx = NULL;
5853 wpa_s->ap_configured_cb_data = NULL;
5854 wpa_s->connect_without_scan = NULL;
b22128ef
JM		 5855}
5856
5857
5858int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
5859{
5860 wpa_s->p2p_long_listen = 0;
5861
9526fd29
JM		 5862 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5863 return -1;
5864
b22128ef
JM		 5865 return p2p_reject(wpa_s->global->p2p, addr);
5866}
5867
5868
5869/* Invite to reinvoke a persistent group */
5870int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4d32c0c4 5871 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
20ea1ca4 5872 int ht40, int vht, int pref_freq)
b22128ef
JM		 5873{
5874 enum p2p_invite_role role;
0d08efa4
IP		 5875 u8 *bssid = NULL;
5876 int force_freq = 0;
5de4b721 5877 int res;
d0f61a4b 5878 int no_pref_freq_given = pref_freq == 0;
b22128ef 5879
dbca75f8 5880 wpa_s->global->p2p_invite_group = NULL;
77e4e853
JM		 5881 if (peer_addr)
5882 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5883 else
5884 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
5885
4d32c0c4
JM		 5886 wpa_s->p2p_persistent_go_freq = freq;
5887 wpa_s->p2p_go_ht40 = !!ht40;
b22128ef
JM		 5888 if (ssid->mode == WPAS_MODE_P2P_GO) {
5889 role = P2P_INVITE_ROLE_GO;
5890 if (peer_addr == NULL) {
5891 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
5892 "address in invitation command");
5893 return -1;
5894 }
5895 if (wpas_p2p_create_iface(wpa_s)) {
5896 if (wpas_p2p_add_group_interface(wpa_s,
5897 WPA_IF_P2P_GO) < 0) {
5898 wpa_printf(MSG_ERROR, "P2P: Failed to "
5899 "allocate a new interface for the "
5900 "group");
5901 return -1;
5902 }
5903 bssid = wpa_s->pending_interface_addr;
5904 } else
5905 bssid = wpa_s->own_addr;
5906 } else {
5907 role = P2P_INVITE_ROLE_CLIENT;
5908 peer_addr = ssid->bssid;
5909 }
5910 wpa_s->pending_invite_ssid_id = ssid->id;
5911
51e9f228
JM		 5912 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5913 role == P2P_INVITE_ROLE_GO);
5de4b721
JM		 5914 if (res)
5915 return res;
79879f4a 5916
9526fd29
JM		 5917 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5918 return -1;
5919
d0f61a4b
JM		 5920 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
5921 no_pref_freq_given && pref_freq > 0 &&
5922 wpa_s->num_multichan_concurrent > 1 &&
5923 wpas_p2p_num_unused_channels(wpa_s) > 0) {
5924 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
5925 pref_freq);
5926 pref_freq = 0;
5927 }
5928
b22128ef 5929 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a 5930 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
8e9f53c3 5931 1, pref_freq, -1);
b22128ef
JM		 5932}
5933
5934
5935/* Invite to join an active group */
5936int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
5937 const u8 *peer_addr, const u8 *go_dev_addr)
5938{
5939 struct wpa_global *global = wpa_s->global;
5940 enum p2p_invite_role role;
0d08efa4 5941 u8 *bssid = NULL;
b22128ef 5942 struct wpa_ssid *ssid;
c427ac92 5943 int persistent;
73b54d63 5944 int freq = 0, force_freq = 0, pref_freq = 0;
5de4b721 5945 int res;
b22128ef 5946
4d32c0c4
JM		 5947 wpa_s->p2p_persistent_go_freq = 0;
5948 wpa_s->p2p_go_ht40 = 0;
20ea1ca4 5949 wpa_s->p2p_go_vht = 0;
4d32c0c4 5950
b22128ef
JM		 5951 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5952 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5953 break;
5954 }
5955 if (wpa_s == NULL) {
5956 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
5957 return -1;
5958 }
5959
5960 ssid = wpa_s->current_ssid;
5961 if (ssid == NULL) {
5962 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
5963 "invitation");
5964 return -1;
5965 }
5966
dbca75f8 5967 wpa_s->global->p2p_invite_group = wpa_s;
c427ac92
JM		 5968 persistent = ssid->p2p_persistent_group &&
5969 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
5970 ssid->ssid, ssid->ssid_len);
5971
b22128ef
JM		 5972 if (ssid->mode == WPAS_MODE_P2P_GO) {
5973 role = P2P_INVITE_ROLE_ACTIVE_GO;
5974 bssid = wpa_s->own_addr;
5975 if (go_dev_addr == NULL)
d7e70476 5976 go_dev_addr = wpa_s->global->p2p_dev_addr;
73b54d63 5977 freq = ssid->frequency;
b22128ef
JM		 5978 } else {
5979 role = P2P_INVITE_ROLE_CLIENT;
5980 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
5981 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
5982 "invite to current group");
5983 return -1;
5984 }
5985 bssid = wpa_s->bssid;
5986 if (go_dev_addr == NULL &&
5987 !is_zero_ether_addr(wpa_s->go_dev_addr))
5988 go_dev_addr = wpa_s->go_dev_addr;
73b54d63
JM		 5989 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
5990 (int) wpa_s->assoc_freq;
b22128ef 5991 }
bb79dc72 5992 wpa_s->parent->pending_invite_ssid_id = -1;
b22128ef 5993
9526fd29
JM		 5994 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5995 return -1;
5996
51e9f228
JM		 5997 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5998 role == P2P_INVITE_ROLE_ACTIVE_GO);
5de4b721
JM		 5999 if (res)
6000 return res;
0d08efa4 6001 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
79879f4a 6002
b22128ef 6003 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a 6004 ssid->ssid, ssid->ssid_len, force_freq,
8e9f53c3 6005 go_dev_addr, persistent, pref_freq, -1);
b22128ef
JM		 6006}
6007
6008
6009void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
6010{
6011 struct wpa_ssid *ssid = wpa_s->current_ssid;
6012 const char *ssid_txt;
6013 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 6014 int network_id = -1;
b22128ef 6015 int persistent;
b49d6ccb 6016 int freq;
25ef8529
JM		 6017 u8 ip[3 * 4];
6018 char ip_addr[100];
b22128ef 6019
73ccd083
JM		 6020 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
6021 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6022 wpa_s->parent, NULL);
6023 }
361cdf34 6024
b22128ef 6025 if (!wpa_s->show_group_started || !ssid)
1b5d4714 6026 return;
b22128ef
JM		 6027
6028 wpa_s->show_group_started = 0;
6029
6030 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
6031 os_memset(go_dev_addr, 0, ETH_ALEN);
6032 if (ssid->bssid_set)
6033 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
6034 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
6035 ssid->ssid_len);
6036 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
6037
a0a9f3b0
JM		 6038 if (wpa_s->global->p2p_group_formation == wpa_s)
6039 wpa_s->global->p2p_group_formation = NULL;
6040
b49d6ccb
JJ		 6041 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
6042 (int) wpa_s->assoc_freq;
25ef8529
JM		 6043
6044 ip_addr[0] = '\0';
6045 if (wpa_sm_get_p2p_ip_addr(wpa_s->wpa, ip) == 0) {
6046 os_snprintf(ip_addr, sizeof(ip_addr), " ip_addr=%u.%u.%u.%u "
6047 "ip_mask=%u.%u.%u.%u go_ip_addr=%u.%u.%u.%u",
6048 ip[0], ip[1], ip[2], ip[3],
6049 ip[4], ip[5], ip[6], ip[7],
6050 ip[8], ip[9], ip[10], ip[11]);
6051 }
6052
b22128ef
JM		 6053 if (ssid->passphrase == NULL && ssid->psk_set) {
6054 char psk[65];
6055 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
92c4465b
JM		 6056 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
6057 "%s client ssid=\"%s\" freq=%d psk=%s "
25ef8529 6058 "go_dev_addr=" MACSTR "%s%s",
92c4465b
JM		 6059 wpa_s->ifname, ssid_txt, freq, psk,
6060 MAC2STR(go_dev_addr),
25ef8529 6061 persistent ? " [PERSISTENT]" : "", ip_addr);
b22128ef 6062 } else {
92c4465b
JM		 6063 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
6064 "%s client ssid=\"%s\" freq=%d "
25ef8529 6065 "passphrase=\"%s\" go_dev_addr=" MACSTR "%s%s",
92c4465b
JM		 6066 wpa_s->ifname, ssid_txt, freq,
6067 ssid->passphrase ? ssid->passphrase : "",
6068 MAC2STR(go_dev_addr),
25ef8529 6069 persistent ? " [PERSISTENT]" : "", ip_addr);
b22128ef
JM		 6070 }
6071
6072 if (persistent)
4b6baa2f
JMB		 6073 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
6074 ssid, go_dev_addr);
6075 if (network_id < 0)
6076 network_id = ssid->id;
6077 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
b22128ef
JM		 6078}
6079
6080
6081int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
6082 u32 interval1, u32 duration2, u32 interval2)
6083{
c64e3a08
JM		 6084 int ret;
6085
9526fd29
JM		 6086 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6087 return -1;
3ac17eba 6088
b22128ef
JM		 6089 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
6090 wpa_s->current_ssid == NULL ||
6091 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
6092 return -1;
6093
c64e3a08
JM		 6094 ret = p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
6095 wpa_s->own_addr, wpa_s->assoc_freq,
6096 duration1, interval1, duration2, interval2);
6097 if (ret == 0)
6098 wpa_s->waiting_presence_resp = 1;
6099
6100 return ret;
b22128ef
JM		 6101}
6102
6103
6104int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
6105 unsigned int interval)
6106{
9526fd29
JM		 6107 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6108 return -1;
6109
b22128ef
JM		 6110 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
6111}
6112
6113
c8106615
JM		 6114static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
6115{
5fbddfdc
JM		 6116 if (wpa_s->current_ssid == NULL) {
6117 /*
c7deed74 6118 * current_ssid can be cleared when P2P client interface gets
5fbddfdc
JM		 6119 * disconnected, so assume this interface was used as P2P
6120 * client.
6121 */
6122 return 1;
6123 }
6124 return wpa_s->current_ssid->p2p_group &&
c8106615
JM		 6125 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
6126}
6127
6128
3071e181
JM		 6129static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
6130{
6131 struct wpa_supplicant *wpa_s = eloop_ctx;
6132
c8106615 6133 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
3071e181
JM		 6134 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
6135 "disabled");
6136 return;
6137 }
6138
6139 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
6140 "group");
8dba4aef 6141 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
3071e181
JM		 6142}
6143
6144
6145static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
6146{
5f482d55 6147 int timeout;
c8106615 6148
dddc7045
JM		 6149 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6150 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
6151
c8106615 6152 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3071e181
JM		 6153 return;
6154
c8106615
JM		 6155 timeout = wpa_s->conf->p2p_group_idle;
6156 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
6157 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
6158 timeout = P2P_MAX_CLIENT_IDLE;
6159
6160 if (timeout == 0)
3071e181
JM		 6161 return;
6162
5f482d55
JM		 6163 if (timeout < 0) {
6164 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
6165 timeout = 0; /* special client mode no-timeout */
6166 else
6167 return;
6168 }
6169
8c472816
JM		 6170 if (wpa_s->p2p_in_provisioning) {
6171 /*
6172 * Use the normal group formation timeout during the
6173 * provisioning phase to avoid terminating this process too
6174 * early due to group idle timeout.
6175 */
6176 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6177 "during provisioning");
6178 return;
6179 }
6180
361cdf34
JM		 6181 if (wpa_s->show_group_started) {
6182 /*
6183 * Use the normal group formation timeout between the end of
6184 * the provisioning phase and completion of 4-way handshake to
6185 * avoid terminating this process too early due to group idle
6186 * timeout.
6187 */
6188 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
6189 "while waiting for initial 4-way handshake to "
6190 "complete");
6191 return;
6192 }
6193
3071e181 6194 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
c8106615
JM		 6195 timeout);
6196 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
6197 wpa_s, NULL);
3071e181
JM		 6198}
6199
6200
0aadd568
JM		 6201/* Returns 1 if the interface was removed */
6202int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
6203 u16 reason_code, const u8 *ie, size_t ie_len,
6204 int locally_generated)
b22128ef 6205{
9526fd29 6206 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
0aadd568 6207 return 0;
b22128ef 6208
3fc14102
JM		 6209 if (!locally_generated)
6210 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6211 ie_len);
6212
6213 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
6214 wpa_s->current_ssid &&
6215 wpa_s->current_ssid->p2p_group &&
6216 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
6217 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
6218 "session is ending");
0aadd568
JM		 6219 if (wpas_p2p_group_delete(wpa_s,
6220 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
6221 > 0)
6222 return 1;
3fc14102 6223 }
0aadd568
JM		 6224
6225 return 0;
b22128ef
JM		 6226}
6227
6228
6229void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3fc14102
JM		 6230 u16 reason_code, const u8 *ie, size_t ie_len,
6231 int locally_generated)
b22128ef 6232{
9526fd29 6233 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 6234 return;
6235
3fc14102
JM		 6236 if (!locally_generated)
6237 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
6238 ie_len);
b22128ef
JM		 6239}
6240
6241
6242void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
6243{
6244 struct p2p_data *p2p = wpa_s->global->p2p;
6245
6246 if (p2p == NULL)
6247 return;
6248
4c010834
KL		 6249 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
6250 return;
6251
b22128ef
JM		 6252 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
6253 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
6254
2f646b6e
JB		 6255 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
6256 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
b22128ef 6257
b6e01800
JM		 6258 if (wpa_s->wps &&
6259 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
6260 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
6261
6262 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
6263 p2p_set_uuid(p2p, wpa_s->wps->uuid);
6264
6265 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
6266 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
6267 p2p_set_model_name(p2p, wpa_s->conf->model_name);
6268 p2p_set_model_number(p2p, wpa_s->conf->model_number);
6269 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
6270 }
6271
2f646b6e
JB		 6272 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
6273 p2p_set_sec_dev_types(p2p,
6274 (void *) wpa_s->conf->sec_device_type,
6275 wpa_s->conf->num_sec_device_types);
b22128ef 6276
f95cac27
JMB		 6277 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
6278 int i;
6279 p2p_remove_wps_vendor_extensions(p2p);
6280 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
6281 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
6282 continue;
6283 p2p_add_wps_vendor_extension(
6284 p2p, wpa_s->conf->wps_vendor_ext[i]);
6285 }
6286 }
6287
b22128ef
JM		 6288 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
6289 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
6290 char country[3];
6291 country[0] = wpa_s->conf->country[0];
6292 country[1] = wpa_s->conf->country[1];
6293 country[2] = 0x04;
6294 p2p_set_country(p2p, country);
6295 }
6296
6297 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
6298 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
6299 wpa_s->conf->p2p_ssid_postfix ?
6300 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
6301 0);
6302 }
0f66abd2
SS		 6303
6304 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
6305 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
2463ba70
JS		 6306
6307 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
6308 u8 reg_class, channel;
6309 int ret;
6310 unsigned int r;
e3bd6e9d
IP		 6311 u8 channel_forced;
6312
2463ba70
JS		 6313 if (wpa_s->conf->p2p_listen_reg_class &&
6314 wpa_s->conf->p2p_listen_channel) {
6315 reg_class = wpa_s->conf->p2p_listen_reg_class;
6316 channel = wpa_s->conf->p2p_listen_channel;
e3bd6e9d 6317 channel_forced = 1;
2463ba70
JS		 6318 } else {
6319 reg_class = 81;
6320 /*
6321 * Pick one of the social channels randomly as the
6322 * listen channel.
6323 */
6324 os_get_random((u8 *) &r, sizeof(r));
6325 channel = 1 + (r % 3) * 5;
e3bd6e9d 6326 channel_forced = 0;
2463ba70 6327 }
e3bd6e9d
IP		 6328 ret = p2p_set_listen_channel(p2p, reg_class, channel,
6329 channel_forced);
2463ba70
JS		 6330 if (ret)
6331 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
6332 "failed: %d", ret);
6333 }
6334 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
6335 u8 op_reg_class, op_channel, cfg_op_channel;
6336 int ret = 0;
6337 unsigned int r;
6338 if (wpa_s->conf->p2p_oper_reg_class &&
6339 wpa_s->conf->p2p_oper_channel) {
6340 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
6341 op_channel = wpa_s->conf->p2p_oper_channel;
6342 cfg_op_channel = 1;
6343 } else {
6344 op_reg_class = 81;
6345 /*
6346 * Use random operation channel from (1, 6, 11)
6347 *if no other preference is indicated.
6348 */
6349 os_get_random((u8 *) &r, sizeof(r));
6350 op_channel = 1 + (r % 3) * 5;
6351 cfg_op_channel = 0;
6352 }
6353 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
6354 cfg_op_channel);
6355 if (ret)
6356 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
6357 "failed: %d", ret);
6358 }
21d996f7
JM		 6359
6360 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
6361 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
6362 wpa_s->conf->p2p_pref_chan) < 0) {
6363 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
6364 "update failed");
6365 }
556b30da
JM		 6366
6367 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
6368 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
6369 "update failed");
6370 }
21d996f7 6371 }
1b928f96
JM		 6372
6373 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PASSPHRASE_LEN)
6374 p2p_set_passphrase_len(p2p, wpa_s->conf->p2p_passphrase_len);
b22128ef 6375}
aefb53bd
JM		 6376
6377
6378int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
6379 int duration)
6380{
6381 if (!wpa_s->ap_iface)
6382 return -1;
6383 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
6384 duration);
6385}
72044390
JM		 6386
6387
6388int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
6389{
9526fd29 6390 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
72044390 6391 return -1;
72044390
JM		 6392
6393 wpa_s->global->cross_connection = enabled;
6394 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
6395
6396 if (!enabled) {
6397 struct wpa_supplicant *iface;
6398
6399 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
6400 {
6401 if (iface->cross_connect_enabled == 0)
6402 continue;
6403
6404 iface->cross_connect_enabled = 0;
6405 iface->cross_connect_in_use = 0;
92c4465b
JM		 6406 wpa_msg_global(iface->parent, MSG_INFO,
6407 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6408 iface->ifname,
6409 iface->cross_connect_uplink);
72044390
JM		 6410 }
6411 }
6412
6413 return 0;
6414}
6415
6416
6417static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
6418{
6419 struct wpa_supplicant *iface;
6420
6421 if (!uplink->global->cross_connection)
6422 return;
6423
6424 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6425 if (!iface->cross_connect_enabled)
6426 continue;
6427 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6428 0)
6429 continue;
6430 if (iface->ap_iface == NULL)
6431 continue;
6432 if (iface->cross_connect_in_use)
6433 continue;
6434
6435 iface->cross_connect_in_use = 1;
92c4465b
JM		 6436 wpa_msg_global(iface->parent, MSG_INFO,
6437 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6438 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 6439 }
6440}
6441
6442
6443static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
6444{
6445 struct wpa_supplicant *iface;
6446
6447 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
6448 if (!iface->cross_connect_enabled)
6449 continue;
6450 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
6451 0)
6452 continue;
6453 if (!iface->cross_connect_in_use)
6454 continue;
6455
92c4465b
JM		 6456 wpa_msg_global(iface->parent, MSG_INFO,
6457 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
6458 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 6459 iface->cross_connect_in_use = 0;
6460 }
6461}
6462
6463
6464void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
6465{
6466 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
6467 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
6468 wpa_s->cross_connect_disallowed)
6469 wpas_p2p_disable_cross_connect(wpa_s);
6470 else
6471 wpas_p2p_enable_cross_connect(wpa_s);
dddc7045
JM		 6472 if (!wpa_s->ap_iface &&
6473 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
6474 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
72044390
JM		 6475}
6476
6477
6478void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
6479{
6480 wpas_p2p_disable_cross_connect(wpa_s);
4c2c6751
JM		 6481 if (!wpa_s->ap_iface &&
6482 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
6483 wpa_s, NULL))
3071e181 6484 wpas_p2p_set_group_idle_timeout(wpa_s);
72044390
JM		 6485}
6486
6487
6488static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
6489{
6490 struct wpa_supplicant *iface;
6491
6492 if (!wpa_s->global->cross_connection)
6493 return;
6494
6495 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
6496 if (iface == wpa_s)
6497 continue;
6498 if (iface->drv_flags &
6499 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
6500 continue;
6501 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
6502 continue;
6503
6504 wpa_s->cross_connect_enabled = 1;
6505 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
6506 sizeof(wpa_s->cross_connect_uplink));
6507 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
6508 "%s to %s whenever uplink is available",
6509 wpa_s->ifname, wpa_s->cross_connect_uplink);
6510
6511 if (iface->ap_iface || iface->current_ssid == NULL ||
6512 iface->current_ssid->mode != WPAS_MODE_INFRA ||
6513 iface->cross_connect_disallowed ||
6514 iface->wpa_state != WPA_COMPLETED)
6515 break;
6516
6517 wpa_s->cross_connect_in_use = 1;
92c4465b
JM		 6518 wpa_msg_global(wpa_s->parent, MSG_INFO,
6519 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
6520 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390
JM		 6521 break;
6522 }
6523}
b73bf0a7
JM		 6524
6525
6526int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
6527{
6528 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
6529 !wpa_s->p2p_in_provisioning)
6530 return 0; /* not P2P client operation */
6531
6532 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
6533 "session overlap");
148bb37f
JM		 6534 if (wpa_s != wpa_s->parent)
6535 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
1075b295 6536 wpas_p2p_group_formation_failed(wpa_s);
b73bf0a7
JM		 6537 return 1;
6538}
b5c9da8d
JM		 6539
6540
ace0fbdb
AS		 6541void wpas_p2p_pbc_overlap_cb(void *eloop_ctx, void *timeout_ctx)
6542{
6543 struct wpa_supplicant *wpa_s = eloop_ctx;
6544 wpas_p2p_notif_pbc_overlap(wpa_s);
6545}
6546
6547
b5c9da8d
JM		 6548void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
6549{
51e9f228 6550 struct p2p_channels chan, cli_chan;
7b42862a 6551 struct wpa_supplicant *ifs;
b5c9da8d
JM		 6552
6553 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
6554 return;
6555
6556 os_memset(&chan, 0, sizeof(chan));
51e9f228
JM		 6557 os_memset(&cli_chan, 0, sizeof(cli_chan));
6558 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
b5c9da8d
JM		 6559 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
6560 "channel list");
6561 return;
6562 }
6563
51e9f228 6564 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
7b42862a
EMK		 6565
6566 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
6567 int freq;
6568 if (!ifs->current_ssid ||
6569 !ifs->current_ssid->p2p_group ||
6570 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
6571 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
6572 continue;
6573 freq = ifs->current_ssid->frequency;
6574 if (freq_included(&chan, freq)) {
6575 wpa_dbg(ifs, MSG_DEBUG,
6576 "P2P GO operating frequency %d MHz in valid range",
6577 freq);
6578 continue;
6579 }
6580
6581 wpa_dbg(ifs, MSG_DEBUG,
6582 "P2P GO operating in invalid frequency %d MHz", freq);
6583 /* TODO: Consider using CSA or removing the group within
6584 * wpa_supplicant */
6585 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
6586 }
b5c9da8d 6587}
59eba7a2
JM		 6588
6589
50178335
JM		 6590static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
6591 struct wpa_scan_results *scan_res)
6592{
6593 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
6594}
6595
6596
59eba7a2
JM		 6597int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
6598{
6599 struct wpa_global *global = wpa_s->global;
6600 int found = 0;
231bbd03 6601 const u8 *peer;
59eba7a2 6602
9526fd29
JM		 6603 if (global->p2p == NULL)
6604 return -1;
6605
59eba7a2
JM		 6606 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
6607
6608 if (wpa_s->pending_interface_name[0] &&
6609 !is_zero_ether_addr(wpa_s->pending_interface_addr))
6610 found = 1;
6611
231bbd03
SS		 6612 peer = p2p_get_go_neg_peer(global->p2p);
6613 if (peer) {
6614 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
6615 MACSTR, MAC2STR(peer));
6616 p2p_unauthorize(global->p2p, peer);
75c208b9 6617 found = 1;
231bbd03
SS		 6618 }
6619
50178335
JM		 6620 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
6621 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
6622 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
6623 found = 1;
6624 }
6625
6626 if (wpa_s->pending_pd_before_join) {
6627 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
6628 wpa_s->pending_pd_before_join = 0;
6629 found = 1;
6630 }
6631
59eba7a2
JM		 6632 wpas_p2p_stop_find(wpa_s);
6633
6634 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6635 if (wpa_s == global->p2p_group_formation &&
a0a9f3b0
JM		 6636 (wpa_s->p2p_in_provisioning ||
6637 wpa_s->parent->pending_interface_type ==
6638 WPA_IF_P2P_CLIENT)) {
59eba7a2
JM		 6639 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
6640 "formation found - cancelling",
6641 wpa_s->ifname);
6642 found = 1;
45fee6f0
SS		 6643 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6644 wpa_s->parent, NULL);
30b80389
JM		 6645 if (wpa_s->p2p_in_provisioning) {
6646 wpas_group_formation_completed(wpa_s, 0);
6647 break;
6648 }
8dba4aef
JM		 6649 wpas_p2p_group_delete(wpa_s,
6650 P2P_GROUP_REMOVAL_REQUESTED);
59eba7a2 6651 break;
f05cee97
JM		 6652 } else if (wpa_s->p2p_in_invitation) {
6653 wpa_printf(MSG_DEBUG, "P2P: Interface %s in invitation found - cancelling",
6654 wpa_s->ifname);
6655 found = 1;
6656 wpas_p2p_group_formation_failed(wpa_s);
59eba7a2
JM		 6657 }
6658 }
6659
6660 if (!found) {
6661 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
6662 return -1;
6663 }
6664
6665 return 0;
6666}
c973f386
JM		 6667
6668
6669void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
6670{
6671 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6672 return;
6673
6674 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
6675 "being available anymore");
8dba4aef 6676 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
c973f386 6677}
7cfc4ac3
AGS		 6678
6679
6680void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
6681 int freq_24, int freq_5, int freq_overall)
6682{
6683 struct p2p_data *p2p = wpa_s->global->p2p;
152cff6b 6684 if (p2p == NULL)
7cfc4ac3
AGS		 6685 return;
6686 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
6687}
9d562b79
SS		 6688
6689
6690int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
6691{
6692 u8 peer[ETH_ALEN];
6693 struct p2p_data *p2p = wpa_s->global->p2p;
6694
152cff6b 6695 if (p2p == NULL)
9d562b79
SS		 6696 return -1;
6697
6698 if (hwaddr_aton(addr, peer))
6699 return -1;
6700
6701 return p2p_unauthorize(p2p, peer);
6702}
3103f345
JB		 6703
6704
6705/**
6706 * wpas_p2p_disconnect - Disconnect from a P2P Group
6707 * @wpa_s: Pointer to wpa_supplicant data
6708 * Returns: 0 on success, -1 on failure
6709 *
6710 * This can be used to disconnect from a group in which the local end is a P2P
6711 * Client or to end a P2P Group in case the local end is the Group Owner. If a
6712 * virtual network interface was created for this group, that interface will be
6713 * removed. Otherwise, only the configured P2P group network will be removed
6714 * from the interface.
6715 */
6716int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
6717{
6718
6719 if (wpa_s == NULL)
6720 return -1;
6721
0aadd568
JM		 6722 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
6723 -1 : 0;
3103f345 6724}
303f60d3
JM		 6725
6726
6727int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
6728{
ec01d5f6
JM		 6729 int ret;
6730
303f60d3
JM		 6731 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6732 return 0;
6733
ec01d5f6
JM		 6734 ret = p2p_in_progress(wpa_s->global->p2p);
6735 if (ret == 0) {
6736 /*
6737 * Check whether there is an ongoing WPS provisioning step (or
6738 * other parts of group formation) on another interface since
6739 * p2p_in_progress() does not report this to avoid issues for
6740 * scans during such provisioning step.
6741 */
6742 if (wpa_s->global->p2p_group_formation &&
6743 wpa_s->global->p2p_group_formation != wpa_s) {
6744 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
6745 "in group formation",
6746 wpa_s->global->p2p_group_formation->ifname);
6747 ret = 1;
6748 }
6749 }
6750
c1c0b35f 6751 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
151ab808
JB		 6752 struct os_reltime now;
6753 os_get_reltime(&now);
6754 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
6755 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
c1c0b35f
JM		 6756 /* Wait for the first client has expired */
6757 wpa_s->global->p2p_go_wait_client.sec = 0;
6758 } else {
6759 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
6760 ret = 1;
6761 }
6762 }
6763
ec01d5f6 6764 return ret;
303f60d3 6765}
502618f7
JM		 6766
6767
6768void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
6769 struct wpa_ssid *ssid)
502618f7
JM		 6770{
6771 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
6772 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6773 wpa_s->parent, NULL) > 0) {
eb6f8c2b
AC		 6774 /**
6775 * Remove the network by scheduling the group formation
6776 * timeout to happen immediately. The teardown code
6777 * needs to be scheduled to run asynch later so that we
6778 * don't delete data from under ourselves unexpectedly.
6779 * Calling wpas_p2p_group_formation_timeout directly
6780 * causes a series of crashes in WPS failure scenarios.
6781 */
502618f7
JM		 6782 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
6783 "P2P group network getting removed");
eb6f8c2b
AC		 6784 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
6785 wpa_s->parent, NULL);
502618f7
JM		 6786 }
6787}
87f841a1
JM		 6788
6789
6790struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
c427ac92
JM		 6791 const u8 *addr, const u8 *ssid,
6792 size_t ssid_len)
87f841a1
JM		 6793{
6794 struct wpa_ssid *s;
fbdcfd57 6795 size_t i;
87f841a1
JM		 6796
6797 for (s = wpa_s->conf->ssid; s; s = s->next) {
fbdcfd57
JM		 6798 if (s->disabled != 2)
6799 continue;
c427ac92
JM		 6800 if (ssid &&
6801 (ssid_len != s->ssid_len ||
6802 os_memcmp(ssid, s->ssid, ssid_len) != 0))
6803 continue;
01a57fe4
JM		 6804 if (addr == NULL) {
6805 if (s->mode == WPAS_MODE_P2P_GO)
6806 return s;
6807 continue;
6808 }
fbdcfd57
JM		 6809 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
6810 return s; /* peer is GO in the persistent group */
6811 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
6812 continue;
6813 for (i = 0; i < s->num_p2p_clients; i++) {
6814 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
6815 addr, ETH_ALEN) == 0)
6816 return s; /* peer is P2P client in persistent
6817 * group */
6818 }
87f841a1
JM		 6819 }
6820
6821 return NULL;
6822}
fbdcfd57
JM		 6823
6824
6825void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
6826 const u8 *addr)
6827{
eab2b50d
JM		 6828 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6829 wpa_s->parent, NULL) > 0) {
6830 /*
6831 * This can happen if WPS provisioning step is not terminated
6832 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
6833 * peer was able to connect, there is no need to time out group
41f85323
JM		 6834 * formation after this, though. In addition, this is used with
6835 * the initial connection wait on the GO as a separate formation
6836 * timeout and as such, expected to be hit after the initial WPS
6837 * provisioning step.
eab2b50d 6838 */
41f85323
JM		 6839 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
6840 }
6841 if (!wpa_s->p2p_go_group_formation_completed) {
6842 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
6843 wpa_s->p2p_go_group_formation_completed = 1;
6844 wpa_s->global->p2p_group_formation = NULL;
6845 wpa_s->p2p_in_provisioning = 0;
f05cee97 6846 wpa_s->p2p_in_invitation = 0;
eab2b50d 6847 }
c1c0b35f 6848 wpa_s->global->p2p_go_wait_client.sec = 0;
fbdcfd57
JM		 6849 if (addr == NULL)
6850 return;
6851 wpas_p2p_add_persistent_group_client(wpa_s, addr);
6852}
aa9bb764
JM		 6853
6854
6855static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
6856 int group_added)
6857{
6858 struct wpa_supplicant *group = wpa_s;
6859 if (wpa_s->global->p2p_group_formation)
6860 group = wpa_s->global->p2p_group_formation;
6861 wpa_s = wpa_s->parent;
b80eb89d 6862 offchannel_send_action_done(wpa_s);
aa9bb764 6863 if (group_added)
8dba4aef 6864 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
aa9bb764
JM		 6865 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
6866 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
6867 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
6868 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
3bc462cb 6869 wpa_s->p2p_persistent_id,
e2308e4b 6870 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 6871 wpa_s->p2p_go_ht40,
6872 wpa_s->p2p_go_vht);
aa9bb764
JM		 6873}
6874
6875
6876int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
6877{
6878 if (!wpa_s->p2p_fallback_to_go_neg ||
6879 wpa_s->p2p_in_provisioning <= 5)
6880 return 0;
6881
b80eb89d
JM		 6882 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
6883 return 0; /* peer operating as a GO */
6884
aa9bb764
JM		 6885 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
6886 "fallback to GO Negotiation");
6887 wpas_p2p_fallback_to_go_neg(wpa_s, 1);
6888
6889 return 1;
6890}
05a77b3b
JM		 6891
6892
6893unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
6894{
05a77b3b
JM		 6895 struct wpa_supplicant *ifs;
6896
6897 if (wpa_s->wpa_state > WPA_SCANNING) {
6898 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
6899 "concurrent operation",
d3b20469
NS		 6900 wpa_s->conf->p2p_search_delay);
6901 return wpa_s->conf->p2p_search_delay;
05a77b3b
JM		 6902 }
6903
5b81927d
JM		 6904 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
6905 radio_list) {
6906 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
05a77b3b
JM		 6907 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
6908 "delay due to concurrent operation on "
6909 "interface %s",
d3b20469
NS		 6910 wpa_s->conf->p2p_search_delay,
6911 ifs->ifname);
6912 return wpa_s->conf->p2p_search_delay;
05a77b3b
JM		 6913 }
6914 }
6915
6916 return 0;
6917}
f85f545e
JM		 6918
6919
43c693c2
JM		 6920static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
6921 struct wpa_ssid *s, const u8 *addr,
6922 int iface_addr)
6923{
6924 struct psk_list_entry *psk, *tmp;
6925 int changed = 0;
6926
6927 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
6928 list) {
6929 if ((iface_addr && !psk->p2p &&
6930 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
6931 (!iface_addr && psk->p2p &&
6932 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
6933 wpa_dbg(wpa_s, MSG_DEBUG,
6934 "P2P: Remove persistent group PSK list entry for "
6935 MACSTR " p2p=%u",
6936 MAC2STR(psk->addr), psk->p2p);
6937 dl_list_del(&psk->list);
6938 os_free(psk);
6939 changed++;
6940 }
6941 }
6942
6943 return changed;
6944}
6945
6946
01a57fe4
JM		 6947void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
6948 const u8 *p2p_dev_addr,
6949 const u8 *psk, size_t psk_len)
6950{
6951 struct wpa_ssid *ssid = wpa_s->current_ssid;
6952 struct wpa_ssid *persistent;
0bceb8d6 6953 struct psk_list_entry *p, *last;
01a57fe4
JM		 6954
6955 if (psk_len != sizeof(p->psk))
6956 return;
6957
6958 if (p2p_dev_addr) {
6959 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
6960 " p2p_dev_addr=" MACSTR,
6961 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
6962 if (is_zero_ether_addr(p2p_dev_addr))
6963 p2p_dev_addr = NULL;
6964 } else {
6965 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
6966 MAC2STR(mac_addr));
6967 }
6968
6969 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
6970 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
6971 /* To be added to persistent group once created */
6972 if (wpa_s->global->add_psk == NULL) {
6973 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
6974 if (wpa_s->global->add_psk == NULL)
6975 return;
6976 }
6977 p = wpa_s->global->add_psk;
6978 if (p2p_dev_addr) {
6979 p->p2p = 1;
6980 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
6981 } else {
6982 p->p2p = 0;
6983 os_memcpy(p->addr, mac_addr, ETH_ALEN);
6984 }
6985 os_memcpy(p->psk, psk, psk_len);
6986 return;
6987 }
6988
6989 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
6990 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
6991 return;
6992 }
6993
6994 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
6995 ssid->ssid_len);
6996 if (!persistent) {
6997 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
6998 return;
6999 }
7000
7001 p = os_zalloc(sizeof(*p));
7002 if (p == NULL)
7003 return;
7004 if (p2p_dev_addr) {
7005 p->p2p = 1;
7006 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
7007 } else {
7008 p->p2p = 0;
7009 os_memcpy(p->addr, mac_addr, ETH_ALEN);
7010 }
7011 os_memcpy(p->psk, psk, psk_len);
7012
0bceb8d6
JM		 7013 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS &&
7014 (last = dl_list_last(&persistent->psk_list,
7015 struct psk_list_entry, list))) {
01a57fe4
JM		 7016 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
7017 MACSTR " (p2p=%u) to make room for a new one",
7018 MAC2STR(last->addr), last->p2p);
7019 dl_list_del(&last->list);
7020 os_free(last);
7021 }
7022
43c693c2
JM		 7023 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
7024 p2p_dev_addr ? p2p_dev_addr : mac_addr,
7025 p2p_dev_addr == NULL);
7026 if (p2p_dev_addr) {
7027 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
7028 MACSTR, MAC2STR(p2p_dev_addr));
7029 } else {
7030 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
7031 MAC2STR(mac_addr));
7032 }
01a57fe4
JM		 7033 dl_list_add(&persistent->psk_list, &p->list);
7034
01a57fe4
JM		 7035 if (wpa_s->parent->conf->update_config &&
7036 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
7037 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
01a57fe4 7038}
f2c56602
JM		 7039
7040
7041static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
7042 struct wpa_ssid *s, const u8 *addr,
7043 int iface_addr)
7044{
43c693c2 7045 int res;
f2c56602 7046
43c693c2 7047 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
2a33687e
JM		 7048 if (res > 0 && wpa_s->conf->update_config &&
7049 wpa_config_write(wpa_s->confname, wpa_s->conf))
7050 wpa_dbg(wpa_s, MSG_DEBUG,
7051 "P2P: Failed to update configuration");
f2c56602
JM		 7052}
7053
7054
7055static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
7056 const u8 *peer, int iface_addr)
7057{
7058 struct hostapd_data *hapd;
7059 struct hostapd_wpa_psk *psk, *prev, *rem;
7060 struct sta_info *sta;
7061
7062 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
7063 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
7064 return;
7065
7066 /* Remove per-station PSK entry */
7067 hapd = wpa_s->ap_iface->bss[0];
7068 prev = NULL;
7069 psk = hapd->conf->ssid.wpa_psk;
7070 while (psk) {
7071 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
7072 (!iface_addr &&
7073 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
7074 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
7075 MACSTR " iface_addr=%d",
7076 MAC2STR(peer), iface_addr);
7077 if (prev)
7078 prev->next = psk->next;
7079 else
7080 hapd->conf->ssid.wpa_psk = psk->next;
7081 rem = psk;
7082 psk = psk->next;
7083 os_free(rem);
7084 } else {
7085 prev = psk;
7086 psk = psk->next;
7087 }
7088 }
7089
7090 /* Disconnect from group */
7091 if (iface_addr)
7092 sta = ap_get_sta(hapd, peer);
7093 else
7094 sta = ap_get_sta_p2p(hapd, peer);
7095 if (sta) {
7096 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
7097 " (iface_addr=%d) from group",
7098 MAC2STR(peer), iface_addr);
7099 hostapd_drv_sta_deauth(hapd, sta->addr,
7100 WLAN_REASON_DEAUTH_LEAVING);
7101 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
7102 }
7103}
7104
7105
7106void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
7107 int iface_addr)
7108{
7109 struct wpa_ssid *s;
7110 struct wpa_supplicant *w;
7111
7112 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
7113
7114 /* Remove from any persistent group */
7115 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
7116 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
7117 continue;
7118 if (!iface_addr)
7119 wpas_remove_persistent_peer(wpa_s, s, peer, 0);
7120 wpas_p2p_remove_psk(wpa_s->parent, s, peer, iface_addr);
7121 }
7122
7123 /* Remove from any operating group */
7124 for (w = wpa_s->global->ifaces; w; w = w->next)
7125 wpas_p2p_remove_client_go(w, peer, iface_addr);
7126}
5bf9a6c8
JM		 7127
7128
813e7b36
JM		 7129static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
7130{
7131 struct wpa_supplicant *wpa_s = eloop_ctx;
7132 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
7133}
7134
7135
8567866d
JJ		 7136static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
7137{
7138 struct wpa_supplicant *wpa_s = eloop_ctx;
7139
7140 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
7141 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
7142}
7143
7144
7145int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
7146 struct wpa_ssid *ssid)
7147{
7148 struct wpa_supplicant *iface;
7149
7150 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7151 if (!iface->current_ssid ||
7152 iface->current_ssid->frequency == freq ||
7153 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
7154 !iface->current_ssid->p2p_group))
7155 continue;
7156
7157 /* Remove the connection with least priority */
7158 if (!wpas_is_p2p_prioritized(iface)) {
7159 /* STA connection has priority over existing
7160 * P2P connection, so remove the interface. */
7161 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
7162 eloop_register_timeout(0, 0,
7163 wpas_p2p_group_freq_conflict,
7164 iface, NULL);
7165 /* If connection in progress is P2P connection, do not
7166 * proceed for the connection. */
7167 if (wpa_s == iface)
7168 return -1;
7169 else
7170 return 0;
7171 } else {
7172 /* P2P connection has priority, disable the STA network
7173 */
7174 wpa_supplicant_disable_network(wpa_s->global->ifaces,
7175 ssid);
7176 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
7177 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
7178 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
7179 ETH_ALEN);
7180 /* If P2P connection is in progress, continue
7181 * connecting...*/
7182 if (wpa_s == iface)
7183 return 0;
7184 else
7185 return -1;
7186 }
7187 }
7188
7189 return 0;
7190}
7191
7192
5bf9a6c8
JM		 7193int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
7194{
7195 struct wpa_ssid *ssid = wpa_s->current_ssid;
7196
7197 if (ssid == NULL || !ssid->p2p_group)
7198 return 0;
7199
7200 if (wpa_s->p2p_last_4way_hs_fail &&
7201 wpa_s->p2p_last_4way_hs_fail == ssid) {
7202 u8 go_dev_addr[ETH_ALEN];
7203 struct wpa_ssid *persistent;
7204
7205 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
7206 ssid->ssid,
7207 ssid->ssid_len) <= 0) {
7208 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
7209 goto disconnect;
7210 }
7211
7212 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
7213 MACSTR, MAC2STR(go_dev_addr));
7214 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
7215 ssid->ssid,
7216 ssid->ssid_len);
7217 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
7218 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
7219 goto disconnect;
7220 }
7221 wpa_msg_global(wpa_s->parent, MSG_INFO,
7222 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
7223 persistent->id);
7224 disconnect:
7225 wpa_s->p2p_last_4way_hs_fail = NULL;
813e7b36
JM		 7226 /*
7227 * Remove the group from a timeout to avoid issues with caller
7228 * continuing to use the interface if this is on a P2P group
7229 * interface.
7230 */
7231 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
7232 wpa_s, NULL);
5bf9a6c8
JM		 7233 return 1;
7234 }
7235
7236 wpa_s->p2p_last_4way_hs_fail = ssid;
7237 return 0;
7238}
93588780
JM		 7239
7240
7241#ifdef CONFIG_WPS_NFC
7242
7243static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
7244 struct wpabuf *p2p)
7245{
7246 struct wpabuf *ret;
59b45d1a 7247 size_t wsc_len;
93588780
JM		 7248
7249 if (p2p == NULL) {
7250 wpabuf_free(wsc);
7251 wpa_printf(MSG_DEBUG, "P2P: No p2p buffer for handover");
7252 return NULL;
7253 }
7254
59b45d1a
JM		 7255 wsc_len = wsc ? wpabuf_len(wsc) : 0;
7256 ret = wpabuf_alloc(2 + wsc_len + 2 + wpabuf_len(p2p));
93588780
JM		 7257 if (ret == NULL) {
7258 wpabuf_free(wsc);
7259 wpabuf_free(p2p);
7260 return NULL;
7261 }
7262
59b45d1a
JM		 7263 wpabuf_put_be16(ret, wsc_len);
7264 if (wsc)
7265 wpabuf_put_buf(ret, wsc);
93588780
JM		 7266 wpabuf_put_be16(ret, wpabuf_len(p2p));
7267 wpabuf_put_buf(ret, p2p);
7268
7269 wpabuf_free(wsc);
7270 wpabuf_free(p2p);
7271 wpa_hexdump_buf(MSG_DEBUG,
7272 "P2P: Generated NFC connection handover message", ret);
7273
7274 if (ndef && ret) {
7275 struct wpabuf *tmp;
7276 tmp = ndef_build_p2p(ret);
7277 wpabuf_free(ret);
7278 if (tmp == NULL) {
7279 wpa_printf(MSG_DEBUG, "P2P: Failed to NDEF encapsulate handover request");
7280 return NULL;
7281 }
7282 ret = tmp;
7283 }
7284
7285 return ret;
7286}
7287
7288
abe44e3c
JM		 7289static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
7290 struct wpa_ssid **ssid, u8 *go_dev_addr)
59b45d1a
JM		 7291{
7292 struct wpa_supplicant *iface;
7293
abe44e3c
JM		 7294 if (go_dev_addr)
7295 os_memset(go_dev_addr, 0, ETH_ALEN);
7296 if (ssid)
7297 *ssid = NULL;
59b45d1a
JM		 7298 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7299 if (iface->wpa_state < WPA_ASSOCIATING ||
7300 iface->current_ssid == NULL || iface->assoc_freq == 0 ||
7301 !iface->current_ssid->p2p_group ||
7302 iface->current_ssid->mode != WPAS_MODE_INFRA)
7303 continue;
abe44e3c
JM		 7304 if (ssid)
7305 *ssid = iface->current_ssid;
7306 if (go_dev_addr)
7307 os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
59b45d1a
JM		 7308 return iface->assoc_freq;
7309 }
7310 return 0;
7311}
7312
7313
93588780
JM		 7314struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
7315 int ndef)
7316{
7317 struct wpabuf *wsc, *p2p;
abe44e3c
JM		 7318 struct wpa_ssid *ssid;
7319 u8 go_dev_addr[ETH_ALEN];
7320 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
93588780
JM		 7321
7322 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
7323 wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
7324 return NULL;
7325 }
7326
7327 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7328 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7329 &wpa_s->conf->wps_nfc_dh_privkey) < 0) {
7330 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No DH key available for handover request");
7331 return NULL;
7332 }
7333
59b45d1a
JM		 7334 if (cli_freq == 0) {
7335 wsc = wps_build_nfc_handover_req_p2p(
7336 wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
7337 } else
7338 wsc = NULL;
abe44e3c
JM		 7339 p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
7340 go_dev_addr, ssid ? ssid->ssid : NULL,
7341 ssid ? ssid->ssid_len : 0);
93588780
JM		 7342
7343 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7344}
7345
7346
7347struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
7348 int ndef, int tag)
7349{
7350 struct wpabuf *wsc, *p2p;
abe44e3c
JM		 7351 struct wpa_ssid *ssid;
7352 u8 go_dev_addr[ETH_ALEN];
7353 int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
93588780
JM		 7354
7355 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7356 return NULL;
7357
7358 if (!tag && wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7359 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7360 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7361 return NULL;
7362
59b45d1a
JM		 7363 if (cli_freq == 0) {
7364 wsc = wps_build_nfc_handover_sel_p2p(
7365 wpa_s->parent->wps,
7366 tag ? wpa_s->conf->wps_nfc_dev_pw_id :
7367 DEV_PW_NFC_CONNECTION_HANDOVER,
7368 wpa_s->conf->wps_nfc_dh_pubkey,
7369 tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
7370 } else
7371 wsc = NULL;
abe44e3c
JM		 7372 p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
7373 go_dev_addr, ssid ? ssid->ssid : NULL,
7374 ssid ? ssid->ssid_len : 0);
93588780
JM		 7375
7376 return wpas_p2p_nfc_handover(ndef, wsc, p2p);
7377}
7378
db6ae69e
JM		 7379
7380static int wpas_p2p_nfc_join_group(struct wpa_supplicant *wpa_s,
7381 struct p2p_nfc_params *params)
7382{
7383 wpa_printf(MSG_DEBUG, "P2P: Initiate join-group based on NFC "
23318bea
JM		 7384 "connection handover (freq=%d)",
7385 params->go_freq);
7386
7387 if (params->go_freq && params->go_ssid_len) {
7388 wpa_s->p2p_wps_method = WPS_NFC;
7389 wpa_s->pending_join_wps_method = WPS_NFC;
7390 os_memset(wpa_s->pending_join_iface_addr, 0, ETH_ALEN);
7391 os_memcpy(wpa_s->pending_join_dev_addr, params->go_dev_addr,
7392 ETH_ALEN);
7393 return wpas_p2p_join_start(wpa_s, params->go_freq,
7394 params->go_ssid,
7395 params->go_ssid_len);
7396 }
7397
db6ae69e
JM		 7398 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7399 WPS_NFC, 0, 0, 1, 0, wpa_s->conf->p2p_go_intent,
23318bea 7400 params->go_freq, -1, 0, 1, 1);
db6ae69e
JM		 7401}
7402
7403
7404static int wpas_p2p_nfc_auth_join(struct wpa_supplicant *wpa_s,
8e9f53c3 7405 struct p2p_nfc_params *params, int tag)
db6ae69e 7406{
8e9f53c3
JM		 7407 int res, persistent;
7408 struct wpa_ssid *ssid;
7409
db6ae69e
JM		 7410 wpa_printf(MSG_DEBUG, "P2P: Authorize join-group based on NFC "
7411 "connection handover");
7412 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
8e9f53c3 7413 ssid = wpa_s->current_ssid;
db6ae69e
JM		 7414 if (ssid == NULL)
7415 continue;
7416 if (ssid->mode != WPAS_MODE_P2P_GO)
7417 continue;
7418 if (wpa_s->ap_iface == NULL)
7419 continue;
7420 break;
7421 }
7422 if (wpa_s == NULL) {
7423 wpa_printf(MSG_DEBUG, "P2P: Could not find GO interface");
7424 return -1;
7425 }
7426
7427 if (wpa_s->parent->p2p_oob_dev_pw_id !=
7428 DEV_PW_NFC_CONNECTION_HANDOVER &&
7429 !wpa_s->parent->p2p_oob_dev_pw) {
7430 wpa_printf(MSG_DEBUG, "P2P: No NFC Dev Pw known");
7431 return -1;
7432 }
8e9f53c3 7433 res = wpas_ap_wps_add_nfc_pw(
db6ae69e
JM		 7434 wpa_s, wpa_s->parent->p2p_oob_dev_pw_id,
7435 wpa_s->parent->p2p_oob_dev_pw,
7436 wpa_s->parent->p2p_peer_oob_pk_hash_known ?
7437 wpa_s->parent->p2p_peer_oob_pubkey_hash : NULL);
8e9f53c3
JM		 7438 if (res)
7439 return res;
7440
7441 if (!tag) {
7442 wpa_printf(MSG_DEBUG, "P2P: Negotiated handover - wait for peer to join without invitation");
7443 return 0;
7444 }
7445
7446 if (!params->peer ||
7447 !(params->peer->dev_capab & P2P_DEV_CAPAB_INVITATION_PROCEDURE))
7448 return 0;
7449
7450 wpa_printf(MSG_DEBUG, "P2P: Static handover - invite peer " MACSTR
7451 " to join", MAC2STR(params->peer->p2p_device_addr));
7452
7453 wpa_s->global->p2p_invite_group = wpa_s;
7454 persistent = ssid->p2p_persistent_group &&
7455 wpas_p2p_get_persistent(wpa_s->parent,
7456 params->peer->p2p_device_addr,
7457 ssid->ssid, ssid->ssid_len);
7458 wpa_s->parent->pending_invite_ssid_id = -1;
7459
7460 return p2p_invite(wpa_s->global->p2p, params->peer->p2p_device_addr,
7461 P2P_INVITE_ROLE_ACTIVE_GO, wpa_s->own_addr,
7462 ssid->ssid, ssid->ssid_len, ssid->frequency,
7463 wpa_s->global->p2p_dev_addr, persistent, 0,
7464 wpa_s->parent->p2p_oob_dev_pw_id);
db6ae69e
JM		 7465}
7466
7467
7468static int wpas_p2p_nfc_init_go_neg(struct wpa_supplicant *wpa_s,
b56f6c88
JM		 7469 struct p2p_nfc_params *params,
7470 int forced_freq)
db6ae69e
JM		 7471{
7472 wpa_printf(MSG_DEBUG, "P2P: Initiate GO Negotiation based on NFC "
7473 "connection handover");
7474 return wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7475 WPS_NFC, 0, 0, 0, 0, wpa_s->conf->p2p_go_intent,
b56f6c88 7476 forced_freq, -1, 0, 1, 1);
db6ae69e
JM		 7477}
7478
7479
7480static int wpas_p2p_nfc_resp_go_neg(struct wpa_supplicant *wpa_s,
b56f6c88
JM		 7481 struct p2p_nfc_params *params,
7482 int forced_freq)
db6ae69e
JM		 7483{
7484 int res;
7485
7486 wpa_printf(MSG_DEBUG, "P2P: Authorize GO Negotiation based on NFC "
7487 "connection handover");
7488 res = wpas_p2p_connect(wpa_s, params->peer->p2p_device_addr, NULL,
7489 WPS_NFC, 0, 0, 0, 1, wpa_s->conf->p2p_go_intent,
b56f6c88 7490 forced_freq, -1, 0, 1, 1);
db6ae69e
JM		 7491 if (res)
7492 return res;
7493
7494 res = wpas_p2p_listen(wpa_s, 60);
7495 if (res) {
7496 p2p_unauthorize(wpa_s->global->p2p,
7497 params->peer->p2p_device_addr);
7498 }
7499
7500 return res;
7501}
7502
7503
7504static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
7505 const struct wpabuf *data,
b56f6c88 7506 int sel, int tag, int forced_freq)
db6ae69e
JM		 7507{
7508 const u8 *pos, *end;
7509 u16 len, id;
7510 struct p2p_nfc_params params;
7511 int res;
7512
7513 os_memset(&params, 0, sizeof(params));
7514 params.sel = sel;
7515
7516 wpa_hexdump_buf(MSG_DEBUG, "P2P: Received NFC tag payload", data);
7517
7518 pos = wpabuf_head(data);
7519 end = pos + wpabuf_len(data);
7520
7521 if (end - pos < 2) {
7522 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of WSC "
7523 "attributes");
7524 return -1;
7525 }
7526 len = WPA_GET_BE16(pos);
7527 pos += 2;
7528 if (pos + len > end) {
7529 wpa_printf(MSG_DEBUG, "P2P: Not enough data for WSC "
7530 "attributes");
7531 return -1;
7532 }
7533 params.wsc_attr = pos;
7534 params.wsc_len = len;
7535 pos += len;
7536
7537 if (end - pos < 2) {
7538 wpa_printf(MSG_DEBUG, "P2P: Not enough data for Length of P2P "
7539 "attributes");
7540 return -1;
7541 }
7542 len = WPA_GET_BE16(pos);
7543 pos += 2;
7544 if (pos + len > end) {
7545 wpa_printf(MSG_DEBUG, "P2P: Not enough data for P2P "
7546 "attributes");
7547 return -1;
7548 }
7549 params.p2p_attr = pos;
7550 params.p2p_len = len;
7551 pos += len;
7552
7553 wpa_hexdump(MSG_DEBUG, "P2P: WSC attributes",
7554 params.wsc_attr, params.wsc_len);
7555 wpa_hexdump(MSG_DEBUG, "P2P: P2P attributes",
7556 params.p2p_attr, params.p2p_len);
7557 if (pos < end) {
7558 wpa_hexdump(MSG_DEBUG,
7559 "P2P: Ignored extra data after P2P attributes",
7560 pos, end - pos);
7561 }
7562
7563 res = p2p_process_nfc_connection_handover(wpa_s->global->p2p, &params);
7564 if (res)
7565 return res;
7566
74df9ecd
JM		 7567 if (params.next_step == NO_ACTION)
7568 return 0;
7569
7570 if (params.next_step == BOTH_GO) {
7571 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_BOTH_GO "peer=" MACSTR,
7572 MAC2STR(params.peer->p2p_device_addr));
7573 return 0;
7574 }
7575
59b45d1a 7576 if (params.next_step == PEER_CLIENT) {
abe44e3c
JM		 7577 if (!is_zero_ether_addr(params.go_dev_addr)) {
7578 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7579 "peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
7580 " ssid=\"%s\"",
7581 MAC2STR(params.peer->p2p_device_addr),
7582 params.go_freq,
7583 MAC2STR(params.go_dev_addr),
7584 wpa_ssid_txt(params.go_ssid,
7585 params.go_ssid_len));
7586 } else {
7587 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
7588 "peer=" MACSTR " freq=%d",
7589 MAC2STR(params.peer->p2p_device_addr),
7590 params.go_freq);
7591 }
59b45d1a
JM		 7592 return 0;
7593 }
7594
abe44e3c 7595 if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
59b45d1a
JM		 7596 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
7597 MACSTR, MAC2STR(params.peer->p2p_device_addr));
7598 return 0;
7599 }
7600
db6ae69e
JM		 7601 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7602 wpa_s->p2p_oob_dev_pw = NULL;
7603
7604 if (params.oob_dev_pw_len < WPS_OOB_PUBKEY_HASH_LEN + 2) {
7605 wpa_printf(MSG_DEBUG, "P2P: No peer OOB Dev Pw "
7606 "received");
7607 return -1;
7608 }
7609
7610 id = WPA_GET_BE16(params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN);
7611 wpa_printf(MSG_DEBUG, "P2P: Peer OOB Dev Pw %u", id);
7612 wpa_hexdump(MSG_DEBUG, "P2P: Peer OOB Public Key hash",
7613 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7614 os_memcpy(wpa_s->p2p_peer_oob_pubkey_hash,
7615 params.oob_dev_pw, WPS_OOB_PUBKEY_HASH_LEN);
7616 wpa_s->p2p_peer_oob_pk_hash_known = 1;
7617
7618 if (tag) {
7619 if (id < 0x10) {
7620 wpa_printf(MSG_DEBUG, "P2P: Static handover - invalid "
7621 "peer OOB Device Password Id %u", id);
7622 return -1;
7623 }
7624 wpa_printf(MSG_DEBUG, "P2P: Static handover - use peer OOB "
7625 "Device Password Id %u", id);
7626 wpa_hexdump_key(MSG_DEBUG, "P2P: Peer OOB Device Password",
7627 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7628 params.oob_dev_pw_len -
7629 WPS_OOB_PUBKEY_HASH_LEN - 2);
7630 wpa_s->p2p_oob_dev_pw_id = id;
7631 wpa_s->p2p_oob_dev_pw = wpabuf_alloc_copy(
7632 params.oob_dev_pw + WPS_OOB_PUBKEY_HASH_LEN + 2,
7633 params.oob_dev_pw_len -
7634 WPS_OOB_PUBKEY_HASH_LEN - 2);
7635 if (wpa_s->p2p_oob_dev_pw == NULL)
7636 return -1;
7637
7638 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL &&
7639 wps_nfc_gen_dh(&wpa_s->conf->wps_nfc_dh_pubkey,
7640 &wpa_s->conf->wps_nfc_dh_privkey) < 0)
7641 return -1;
7642 } else {
7643 wpa_printf(MSG_DEBUG, "P2P: Using abbreviated WPS handshake "
7644 "without Device Password");
7645 wpa_s->p2p_oob_dev_pw_id = DEV_PW_NFC_CONNECTION_HANDOVER;
7646 }
7647
7648 switch (params.next_step) {
7649 case NO_ACTION:
74df9ecd 7650 case BOTH_GO:
59b45d1a 7651 case PEER_CLIENT:
74df9ecd 7652 /* already covered above */
db6ae69e
JM		 7653 return 0;
7654 case JOIN_GROUP:
7655 return wpas_p2p_nfc_join_group(wpa_s, &params);
7656 case AUTH_JOIN:
8e9f53c3 7657 return wpas_p2p_nfc_auth_join(wpa_s, &params, tag);
db6ae69e 7658 case INIT_GO_NEG:
b56f6c88 7659 return wpas_p2p_nfc_init_go_neg(wpa_s, &params, forced_freq);
db6ae69e
JM		 7660 case RESP_GO_NEG:
7661 /* TODO: use own OOB Dev Pw */
b56f6c88 7662 return wpas_p2p_nfc_resp_go_neg(wpa_s, &params, forced_freq);
db6ae69e
JM		 7663 }
7664
7665 return -1;
7666}
7667
7668
dd37a938 7669int wpas_p2p_nfc_tag_process(struct wpa_supplicant *wpa_s,
b56f6c88 7670 const struct wpabuf *data, int forced_freq)
dd37a938
JM		 7671{
7672 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7673 return -1;
7674
b56f6c88 7675 return wpas_p2p_nfc_connection_handover(wpa_s, data, 1, 1, forced_freq);
dd37a938
JM		 7676}
7677
7678
db6ae69e
JM		 7679int wpas_p2p_nfc_report_handover(struct wpa_supplicant *wpa_s, int init,
7680 const struct wpabuf *req,
b56f6c88 7681 const struct wpabuf *sel, int forced_freq)
db6ae69e
JM		 7682{
7683 struct wpabuf *tmp;
7684 int ret;
7685
7686 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7687 return -1;
7688
7689 wpa_printf(MSG_DEBUG, "NFC: P2P connection handover reported");
7690
7691 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Req",
7692 wpabuf_head(req), wpabuf_len(req));
7693 wpa_hexdump_ascii(MSG_DEBUG, "NFC: Sel",
7694 wpabuf_head(sel), wpabuf_len(sel));
b56f6c88
JM		 7695 if (forced_freq)
7696 wpa_printf(MSG_DEBUG, "NFC: Forced freq %d", forced_freq);
db6ae69e
JM		 7697 tmp = ndef_parse_p2p(init ? sel : req);
7698 if (tmp == NULL) {
7699 wpa_printf(MSG_DEBUG, "P2P: Could not parse NDEF");
7700 return -1;
7701 }
7702
b56f6c88
JM		 7703 ret = wpas_p2p_nfc_connection_handover(wpa_s, tmp, init, 0,
7704 forced_freq);
db6ae69e
JM		 7705 wpabuf_free(tmp);
7706
7707 return ret;
7708}
7709
c4f87a70
JM		 7710
7711int wpas_p2p_nfc_tag_enabled(struct wpa_supplicant *wpa_s, int enabled)
7712{
7713 const u8 *if_addr;
7714 int go_intent = wpa_s->conf->p2p_go_intent;
dd876771 7715 struct wpa_supplicant *iface;
c4f87a70
JM		 7716
7717 if (wpa_s->global->p2p == NULL)
7718 return -1;
7719
7720 if (!enabled) {
dd876771
JM		 7721 wpa_printf(MSG_DEBUG, "P2P: Disable use of own NFC Tag");
7722 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
7723 {
7724 if (!iface->ap_iface)
7725 continue;
7726 hostapd_wps_nfc_token_disable(iface->ap_iface->bss[0]);
7727 }
c4f87a70
JM		 7728 p2p_set_authorized_oob_dev_pw_id(wpa_s->global->p2p, 0,
7729 0, NULL);
7730 if (wpa_s->p2p_nfc_tag_enabled)
7731 wpas_p2p_remove_pending_group_interface(wpa_s);
7732 wpa_s->p2p_nfc_tag_enabled = 0;
7733 return 0;
7734 }
7735
7736 if (wpa_s->global->p2p_disabled)
7737 return -1;
7738
7739 if (wpa_s->conf->wps_nfc_dh_pubkey == NULL ||
7740 wpa_s->conf->wps_nfc_dh_privkey == NULL ||
7741 wpa_s->conf->wps_nfc_dev_pw == NULL ||
7742 wpa_s->conf->wps_nfc_dev_pw_id < 0x10) {
7743 wpa_printf(MSG_DEBUG, "P2P: NFC password token not configured "
7744 "to allow static handover cases");
7745 return -1;
7746 }
7747
dd876771
JM		 7748 wpa_printf(MSG_DEBUG, "P2P: Enable use of own NFC Tag");
7749
c4f87a70
JM		 7750 wpa_s->p2p_oob_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
7751 wpabuf_free(wpa_s->p2p_oob_dev_pw);
7752 wpa_s->p2p_oob_dev_pw = wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
7753 if (wpa_s->p2p_oob_dev_pw == NULL)
7754 return -1;
7755 wpa_s->p2p_peer_oob_pk_hash_known = 0;
7756
67d39cfb
MB		 7757 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
7758 wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT) {
7759 /*
7760 * P2P Group Interface present and the command came on group
7761 * interface, so enable the token for the current interface.
7762 */
7763 wpa_s->create_p2p_iface = 0;
7764 } else {
7765 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
7766 }
c4f87a70
JM		 7767
7768 if (wpa_s->create_p2p_iface) {
7769 enum wpa_driver_if_type iftype;
7770 /* Prepare to add a new interface for the group */
7771 iftype = WPA_IF_P2P_GROUP;
7772 if (go_intent == 15)
7773 iftype = WPA_IF_P2P_GO;
7774 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
7775 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
7776 "interface for the group");
7777 return -1;
7778 }
7779
7780 if_addr = wpa_s->pending_interface_addr;
7781 } else
7782 if_addr = wpa_s->own_addr;
7783
7784 wpa_s->p2p_nfc_tag_enabled = enabled;
7785
dd876771
JM		 7786 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
7787 struct hostapd_data *hapd;
7788 if (iface->ap_iface == NULL)
7789 continue;
7790 hapd = iface->ap_iface->bss[0];
7791 wpabuf_free(hapd->conf->wps_nfc_dh_pubkey);
7792 hapd->conf->wps_nfc_dh_pubkey =
7793 wpabuf_dup(wpa_s->conf->wps_nfc_dh_pubkey);
7794 wpabuf_free(hapd->conf->wps_nfc_dh_privkey);
7795 hapd->conf->wps_nfc_dh_privkey =
7796 wpabuf_dup(wpa_s->conf->wps_nfc_dh_privkey);
7797 wpabuf_free(hapd->conf->wps_nfc_dev_pw);
7798 hapd->conf->wps_nfc_dev_pw =
7799 wpabuf_dup(wpa_s->conf->wps_nfc_dev_pw);
7800 hapd->conf->wps_nfc_dev_pw_id = wpa_s->conf->wps_nfc_dev_pw_id;
7801
7802 if (hostapd_wps_nfc_token_enable(iface->ap_iface->bss[0]) < 0) {
7803 wpa_dbg(iface, MSG_DEBUG,
7804 "P2P: Failed to enable NFC Tag for GO");
7805 }
7806 }
c4f87a70
JM		 7807 p2p_set_authorized_oob_dev_pw_id(
7808 wpa_s->global->p2p, wpa_s->conf->wps_nfc_dev_pw_id, go_intent,
7809 if_addr);
7810
7811 return 0;
7812}
7813
93588780 7814#endif /* CONFIG_WPS_NFC */
e3bd6e9d
IP		 7815
7816
7817static void wpas_p2p_optimize_listen_channel(struct wpa_supplicant *wpa_s,
7818 struct wpa_used_freq_data *freqs,
7819 unsigned int num)
7820{
7821 u8 curr_chan, cand, chan;
7822 unsigned int i;
7823
7824 curr_chan = p2p_get_listen_channel(wpa_s->global->p2p);
7825 for (i = 0, cand = 0; i < num; i++) {
7826 ieee80211_freq_to_chan(freqs[i].freq, &chan);
7827 if (curr_chan == chan) {
7828 cand = 0;
7829 break;
7830 }
7831
7832 if (chan == 1 || chan == 6 || chan == 11)
7833 cand = chan;
7834 }
7835
7836 if (cand) {
7837 wpa_dbg(wpa_s, MSG_DEBUG,
7838 "P2P: Update Listen channel to %u baased on operating channel",
7839 cand);
7840 p2p_set_listen_channel(wpa_s->global->p2p, 81, cand, 0);
7841 }
7842}
7843
7844
7845void wpas_p2p_indicate_state_change(struct wpa_supplicant *wpa_s)
7846{
7847 struct wpa_used_freq_data *freqs;
7848 unsigned int num = wpa_s->num_multichan_concurrent;
7849
7850 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7851 return;
7852
7853 /*
7854 * If possible, optimize the Listen channel to be a channel that is
7855 * already used by one of the other interfaces.
7856 */
7857 if (!wpa_s->conf->p2p_optimize_listen_chan)
7858 return;
7859
7860 if (!wpa_s->current_ssid || wpa_s->wpa_state != WPA_COMPLETED)
7861 return;
7862
7863 freqs = os_calloc(num, sizeof(struct wpa_used_freq_data));
7864 if (!freqs)
7865 return;
7866
7867 num = get_shared_radio_freqs_data(wpa_s, freqs, num);
7868
7869 wpas_p2p_optimize_listen_channel(wpa_s, freqs, num);
7870 os_free(freqs);
7871}
bd10d938
JM		 7872
7873
7874void wpas_p2p_deinit_iface(struct wpa_supplicant *wpa_s)
7875{
7876 if (wpa_s == wpa_s->parent)
7877 wpas_p2p_group_remove(wpa_s, "*");
7878 if (wpa_s == wpa_s->global->p2p_init_wpa_s && wpa_s->global->p2p) {
7879 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disable P2P since removing "
7880 "the management interface is being removed");
7881 wpas_p2p_deinit_global(wpa_s->global);
7882 }
7883}
7884
7885
7886void wpas_p2p_ap_deinit(struct wpa_supplicant *wpa_s)
7887{
7888 if (wpa_s->ap_iface->bss)
7889 wpa_s->ap_iface->bss[0]->p2p_group = NULL;
7890 wpas_p2p_group_deinit(wpa_s);
7891}
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