]> git.ipfire.org Git - thirdparty/hostap.git/blame - wpa_supplicant/p2p_supplicant.c
projects / thirdparty / hostap.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
P2P: Use monotonic time for GO client waiting
[thirdparty/hostap.git] / wpa_supplicant / p2p_supplicant.c
CommitLineData
b22128ef
JM		 1/*
2 * wpa_supplicant - P2P
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
e22d4d95
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
b22128ef
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eloop.h"
13#include "common/ieee802_11_common.h"
14#include "common/ieee802_11_defs.h"
15#include "common/wpa_ctrl.h"
16#include "wps/wps_i.h"
17#include "p2p/p2p.h"
18#include "ap/hostapd.h"
adc33680 19#include "ap/ap_config.h"
f2c56602
JM		 20#include "ap/sta_info.h"
21#include "ap/ap_drv_ops.h"
aefb53bd 22#include "ap/p2p_hostapd.h"
20a0b03d
JM		 23#include "eapol_supp/eapol_supp_sm.h"
24#include "rsn_supp/wpa.h"
b22128ef
JM		 25#include "wpa_supplicant_i.h"
26#include "driver_i.h"
27#include "ap.h"
28#include "config_ssid.h"
29#include "config.h"
b22128ef
JM		 30#include "notify.h"
31#include "scan.h"
32#include "bss.h"
24f6497c 33#include "offchannel.h"
b22128ef
JM		 34#include "wps_supplicant.h"
35#include "p2p_supplicant.h"
b125c48f 36#include "wifi_display.h"
b22128ef
JM		 37
38
9b1ab931
JM		 39/*
40 * How many times to try to scan to find the GO before giving up on join
41 * request.
42 */
43#define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
44
84286a22
SDU		 45#define P2P_AUTO_PD_SCAN_ATTEMPTS 5
46
c8106615
JM		 47#ifndef P2P_MAX_CLIENT_IDLE
48/*
49 * How many seconds to try to reconnect to the GO when connection in P2P client
50 * role has been lost.
51 */
52#define P2P_MAX_CLIENT_IDLE 10
53#endif /* P2P_MAX_CLIENT_IDLE */
54
361cdf34
JM		 55#ifndef P2P_MAX_INITIAL_CONN_WAIT
56/*
57 * How many seconds to wait for initial 4-way handshake to get completed after
58 * WPS provisioning step.
59 */
60#define P2P_MAX_INITIAL_CONN_WAIT 10
61#endif /* P2P_MAX_INITIAL_CONN_WAIT */
62
c1c0b35f
JM		 63#ifndef P2P_MAX_INITIAL_CONN_WAIT_GO
64/*
65 * How many seconds to wait for initial 4-way handshake to get completed after
66 * WPS provisioning step on the GO. This controls the extra time the P2P
67 * operation is considered to be in progress (e.g., to delay other scans) after
68 * WPS provisioning has been completed on the GO during group formation.
69 */
70#define P2P_MAX_INITIAL_CONN_WAIT_GO 10
71#endif /* P2P_MAX_INITIAL_CONN_WAIT_GO */
72
bbc6c729
JM		 73#ifndef P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE
74/*
75 * How many seconds to wait for initial 4-way handshake to get completed after
76 * re-invocation of a persistent group on the GO when the client is expected
77 * to connect automatically (no user interaction).
78 */
79#define P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE 15
80#endif /* P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE */
81
05a77b3b
JM		 82#ifndef P2P_CONCURRENT_SEARCH_DELAY
83#define P2P_CONCURRENT_SEARCH_DELAY 500
84#endif /* P2P_CONCURRENT_SEARCH_DELAY */
85
2e5ba4b6
AS		 86#define P2P_MGMT_DEVICE_PREFIX "p2p-dev-"
87
8dba4aef
JM		 88enum p2p_group_removal_reason {
89 P2P_GROUP_REMOVAL_UNKNOWN,
90 P2P_GROUP_REMOVAL_SILENT,
91 P2P_GROUP_REMOVAL_FORMATION_FAILED,
92 P2P_GROUP_REMOVAL_REQUESTED,
93 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
94 P2P_GROUP_REMOVAL_UNAVAILABLE,
5bf9a6c8 95 P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
8567866d
JJ		 96 P2P_GROUP_REMOVAL_PSK_FAILURE,
97 P2P_GROUP_REMOVAL_FREQ_CONFLICT
8dba4aef
JM		 98};
99
9b1ab931 100
b22128ef
JM		 101static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
102static struct wpa_supplicant *
103wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
104 int go);
105static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
84286a22 106static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq);
ef922c4a 107static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
108def93 108static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0
JM		 109 const u8 *dev_addr, enum p2p_wps_method wps_method,
110 int auto_join);
b22128ef 111static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
72044390 112static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
3071e181
JM		 113static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
114static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
77dfafd0
JM		 115static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
116 void *timeout_ctx);
8567866d 117static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx);
aa9bb764
JM		 118static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
119 int group_added);
8713a2e6 120static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
b22128ef
JM		 121
122
0d08efa4
IP		 123/*
124 * Get the number of concurrent channels that the HW can operate, but that are
125 * currently not in use by any of the wpa_supplicant interfaces.
126 */
127static int wpas_p2p_num_unused_channels(struct wpa_supplicant *wpa_s)
128{
129 int *freqs;
217cf499 130 int num, unused;
0d08efa4
IP		 131
132 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
133 if (!freqs)
134 return -1;
135
136 num = get_shared_radio_freqs(wpa_s, freqs,
137 wpa_s->num_multichan_concurrent);
138 os_free(freqs);
139
217cf499
JM		 140 unused = wpa_s->num_multichan_concurrent - num;
141 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: num_unused_channels: %d", unused);
142 return unused;
0d08efa4
IP		 143}
144
145
146/*
147 * Get the frequencies that are currently in use by one or more of the virtual
148 * interfaces, and that are also valid for P2P operation.
149 */
150static int wpas_p2p_valid_oper_freqs(struct wpa_supplicant *wpa_s,
151 int *p2p_freqs, unsigned int len)
152{
153 int *freqs;
154 unsigned int num, i, j;
155
156 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
157 if (!freqs)
158 return -1;
159
160 num = get_shared_radio_freqs(wpa_s, freqs,
161 wpa_s->num_multichan_concurrent);
162
163 os_memset(p2p_freqs, 0, sizeof(int) * len);
164
165 for (i = 0, j = 0; i < num && j < len; i++) {
166 if (p2p_supported_freq(wpa_s->global->p2p, freqs[i]))
167 p2p_freqs[j++] = freqs[i];
168 }
169
170 os_free(freqs);
171
217cf499
JM		 172 dump_freq_array(wpa_s, "valid for P2P", p2p_freqs, j);
173
0d08efa4
IP		 174 return j;
175}
176
177
6cb27aa8
JM		 178static void wpas_p2p_set_own_freq_preference(struct wpa_supplicant *wpa_s,
179 int freq)
180{
181 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
182 return;
5624ccfe
JM		 183 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
184 freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
185 wpas_p2p_num_unused_channels(wpa_s) > 0) {
21e491f2
JM		 186 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz due to p2p_ignore_shared_freq=1 configuration",
187 freq);
b277a2be 188 freq = 0;
21e491f2 189 }
6cb27aa8
JM		 190 p2p_set_own_freq_preference(wpa_s->global->p2p, freq);
191}
192
193
b22128ef
JM		 194static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
195 struct wpa_scan_results *scan_res)
196{
197 size_t i;
198
9526fd29 199 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 200 return;
201
202 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
203 (int) scan_res->num);
204
205 for (i = 0; i < scan_res->num; i++) {
206 struct wpa_scan_res *bss = scan_res->res[i];
acb69cec 207 struct os_reltime time_tmp_age, entry_ts;
aaeb9c98
JM		 208 const u8 *ies;
209 size_t ies_len;
210
c5f10e80
JM		 211 time_tmp_age.sec = bss->age / 1000;
212 time_tmp_age.usec = (bss->age % 1000) * 1000;
acb69cec 213 os_reltime_sub(&scan_res->fetch_time, &time_tmp_age, &entry_ts);
aaeb9c98
JM		 214
215 ies = (const u8 *) (bss + 1);
216 ies_len = bss->ie_len;
217 if (bss->beacon_ie_len > 0 &&
218 !wpa_scan_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
219 wpa_scan_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
220 wpa_printf(MSG_DEBUG, "P2P: Use P2P IE(s) from Beacon frame since no P2P IE(s) in Probe Response frames received for "
221 MACSTR, MAC2STR(bss->bssid));
222 ies = ies + ies_len;
223 ies_len = bss->beacon_ie_len;
224 }
225
226
b22128ef 227 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
c5f10e80 228 bss->freq, &entry_ts, bss->level,
aaeb9c98 229 ies, ies_len) > 0)
9bcf9541 230 break;
b22128ef
JM		 231 }
232
233 p2p_scan_res_handled(wpa_s->global->p2p);
234}
235
236
046ef4aa
JMB		 237static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
238 unsigned int num_req_dev_types,
360182ed 239 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
b22128ef
JM		 240{
241 struct wpa_supplicant *wpa_s = ctx;
99fcd404 242 struct wpa_supplicant *ifs;
b22128ef
JM		 243 struct wpa_driver_scan_params params;
244 int ret;
245 struct wpabuf *wps_ie, *ies;
246 int social_channels[] = { 2412, 2437, 2462, 0, 0 };
206e1f42 247 size_t ielen;
b22128ef 248
9526fd29
JM		 249 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
250 return -1;
251
99fcd404
JM		 252 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
253 if (ifs->sta_scan_pending &&
407be00b 254 (wpas_scan_scheduled(ifs) || ifs->scanning) &&
99fcd404
JM		 255 wpas_p2p_in_progress(wpa_s) == 2) {
256 wpa_printf(MSG_DEBUG, "Delaying P2P scan to allow "
257 "pending station mode scan to be "
258 "completed on interface %s", ifs->ifname);
e665ca9a 259 wpa_s->global->p2p_cb_on_scan_complete = 1;
99fcd404
JM		 260 wpa_supplicant_req_scan(ifs, 0, 0);
261 return 1;
262 }
263 }
264
b22128ef
JM		 265 os_memset(&params, 0, sizeof(params));
266
267 /* P2P Wildcard SSID */
268 params.num_ssids = 1;
269 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
270 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
271
272 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 273 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
274 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
046ef4aa 275 num_req_dev_types, req_dev_types);
b22128ef
JM		 276 if (wps_ie == NULL)
277 return -1;
278
206e1f42
JM		 279 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
280 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
b22128ef
JM		 281 if (ies == NULL) {
282 wpabuf_free(wps_ie);
283 return -1;
284 }
285 wpabuf_put_buf(ies, wps_ie);
286 wpabuf_free(wps_ie);
287
6d92fa6e 288 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
b22128ef 289
47185fc7 290 params.p2p_probe = 1;
b22128ef
JM		 291 params.extra_ies = wpabuf_head(ies);
292 params.extra_ies_len = wpabuf_len(ies);
293
294 switch (type) {
295 case P2P_SCAN_SOCIAL:
296 params.freqs = social_channels;
297 break;
298 case P2P_SCAN_FULL:
299 break;
b22128ef
JM		 300 case P2P_SCAN_SOCIAL_PLUS_ONE:
301 social_channels[3] = freq;
302 params.freqs = social_channels;
303 break;
304 }
305
17fbb751 306 ret = wpa_drv_scan(wpa_s, &params);
b22128ef
JM		 307
308 wpabuf_free(ies);
309
39185dfa 310 if (ret) {
58d3760e
JM		 311 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
312 if (ifs->scanning ||
313 ifs->scan_res_handler == wpas_p2p_scan_res_handler) {
314 wpa_s->global->p2p_cb_on_scan_complete = 1;
315 ret = 1;
316 break;
317 }
39185dfa 318 }
4342326f 319 } else {
acb69cec 320 os_get_reltime(&wpa_s->scan_trigger_time);
5b376333 321 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
4342326f 322 }
0c96fd6d 323
b22128ef
JM		 324 return ret;
325}
326
327
b22128ef
JM		 328static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
329{
330 switch (p2p_group_interface) {
331 case P2P_GROUP_INTERFACE_PENDING:
332 return WPA_IF_P2P_GROUP;
333 case P2P_GROUP_INTERFACE_GO:
334 return WPA_IF_P2P_GO;
335 case P2P_GROUP_INTERFACE_CLIENT:
336 return WPA_IF_P2P_CLIENT;
337 }
338
339 return WPA_IF_P2P_GROUP;
340}
341
342
6c0da49f
JM		 343static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
344 const u8 *ssid,
345 size_t ssid_len, int *go)
346{
347 struct wpa_ssid *s;
348
349 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
350 for (s = wpa_s->conf->ssid; s; s = s->next) {
351 if (s->disabled != 0 || !s->p2p_group ||
352 s->ssid_len != ssid_len ||
353 os_memcmp(ssid, s->ssid, ssid_len) != 0)
354 continue;
355 if (s->mode == WPAS_MODE_P2P_GO &&
356 s != wpa_s->current_ssid)
357 continue;
358 if (go)
359 *go = s->mode == WPAS_MODE_P2P_GO;
360 return wpa_s;
361 }
362 }
363
364 return NULL;
365}
366
367
8dba4aef
JM		 368static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
369 enum p2p_group_removal_reason removal_reason)
b22128ef
JM		 370{
371 struct wpa_ssid *ssid;
372 char *gtype;
3071e181
JM		 373 const char *reason;
374
b22128ef
JM		 375 ssid = wpa_s->current_ssid;
376 if (ssid == NULL) {
377 /*
378 * The current SSID was not known, but there may still be a
0c802384
JM		 379 * pending P2P group interface waiting for provisioning or a
380 * P2P group that is trying to reconnect.
b22128ef
JM		 381 */
382 ssid = wpa_s->conf->ssid;
383 while (ssid) {
6d22a377 384 if (ssid->p2p_group && ssid->disabled != 2)
b22128ef
JM		 385 break;
386 ssid = ssid->next;
387 }
6f1ca696
JM		 388 if (ssid == NULL &&
389 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
390 {
30ee7692
MN		 391 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
392 "not found");
393 return -1;
394 }
b22128ef
JM		 395 }
396 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
397 gtype = "GO";
398 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
399 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
400 wpa_s->reassociate = 0;
401 wpa_s->disconnected = 1;
402 wpa_supplicant_deauthenticate(wpa_s,
403 WLAN_REASON_DEAUTH_LEAVING);
404 gtype = "client";
405 } else
406 gtype = "GO";
72044390
JM		 407 if (wpa_s->cross_connect_in_use) {
408 wpa_s->cross_connect_in_use = 0;
92c4465b
JM		 409 wpa_msg_global(wpa_s->parent, MSG_INFO,
410 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
411 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390 412 }
8dba4aef 413 switch (removal_reason) {
3071e181
JM		 414 case P2P_GROUP_REMOVAL_REQUESTED:
415 reason = " reason=REQUESTED";
416 break;
8dba4aef
JM		 417 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
418 reason = " reason=FORMATION_FAILED";
419 break;
3071e181
JM		 420 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
421 reason = " reason=IDLE";
422 break;
c973f386
JM		 423 case P2P_GROUP_REMOVAL_UNAVAILABLE:
424 reason = " reason=UNAVAILABLE";
425 break;
3fc14102
JM		 426 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
427 reason = " reason=GO_ENDING_SESSION";
428 break;
5bf9a6c8
JM		 429 case P2P_GROUP_REMOVAL_PSK_FAILURE:
430 reason = " reason=PSK_FAILURE";
431 break;
8567866d
JJ		 432 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
433 reason = " reason=FREQ_CONFLICT";
434 break;
3071e181
JM		 435 default:
436 reason = "";
437 break;
438 }
8dba4aef 439 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
92c4465b
JM		 440 wpa_msg_global(wpa_s->parent, MSG_INFO,
441 P2P_EVENT_GROUP_REMOVED "%s %s%s",
442 wpa_s->ifname, gtype, reason);
aa9bb764 443 }
408af93e 444
8567866d
JJ		 445 if (eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL) > 0)
446 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group freq_conflict timeout");
dddc7045
JM		 447 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
448 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
77dfafd0 449 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
c9c77083 450 wpa_s->parent, NULL) > 0) {
77dfafd0
JM		 451 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
452 "timeout");
c9c77083
VN		 453 wpa_s->p2p_in_provisioning = 0;
454 }
a7a30b90 455
adeb4f59
JM		 456 /*
457 * Make sure wait for the first client does not remain active after the
458 * group has been removed.
459 */
460 wpa_s->global->p2p_go_wait_client.sec = 0;
461
8dba4aef 462 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
408af93e
JB		 463 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
464
b22128ef
JM		 465 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
466 struct wpa_global *global;
467 char *ifname;
468 enum wpa_driver_if_type type;
469 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
470 wpa_s->ifname);
471 global = wpa_s->global;
472 ifname = os_strdup(wpa_s->ifname);
473 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
df509539 474 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
b22128ef
JM		 475 wpa_s = global->ifaces;
476 if (wpa_s && ifname)
477 wpa_drv_if_remove(wpa_s, type, ifname);
478 os_free(ifname);
0aadd568 479 return 1;
b22128ef
JM		 480 }
481
acdd0fc8
DG		 482 if (!wpa_s->p2p_go_group_formation_completed) {
483 wpa_s->global->p2p_group_formation = NULL;
484 wpa_s->p2p_in_provisioning = 0;
485 }
486
c092d83e
JM		 487 wpa_s->show_group_started = 0;
488 os_free(wpa_s->go_params);
489 wpa_s->go_params = NULL;
490
b22128ef
JM		 491 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
492 if (ssid && (ssid->p2p_group ||
493 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
494 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
495 int id = ssid->id;
20a0b03d
JM		 496 if (ssid == wpa_s->current_ssid) {
497 wpa_sm_set_config(wpa_s->wpa, NULL);
498 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
b22128ef 499 wpa_s->current_ssid = NULL;
20a0b03d 500 }
c2762e41
JS		 501 /*
502 * Networks objects created during any P2P activities are not
503 * exposed out as they might/will confuse certain non-P2P aware
504 * applications since these network objects won't behave like
505 * regular ones.
506 *
507 * Likewise, we don't send out network removed signals for such
508 * network objects.
509 */
b22128ef
JM		 510 wpa_config_remove_network(wpa_s->conf, id);
511 wpa_supplicant_clear_status(wpa_s);
433cd2ce 512 wpa_supplicant_cancel_sched_scan(wpa_s);
83218d20 513 wpa_s->sta_scan_pending = 0;
b22128ef
JM		 514 } else {
515 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
516 "found");
517 }
3c29244e
EP		 518 if (wpa_s->ap_iface)
519 wpa_supplicant_ap_deinit(wpa_s);
520 else
521 wpa_drv_deinit_p2p_cli(wpa_s);
30ee7692
MN		 522
523 return 0;
b22128ef
JM		 524}
525
526
527static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
528 u8 *go_dev_addr,
529 const u8 *ssid, size_t ssid_len)
530{
531 struct wpa_bss *bss;
532 const u8 *bssid;
533 struct wpabuf *p2p;
534 u8 group_capab;
535 const u8 *addr;
536
537 if (wpa_s->go_params)
538 bssid = wpa_s->go_params->peer_interface_addr;
539 else
540 bssid = wpa_s->bssid;
541
542 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
543 if (bss == NULL) {
544 u8 iface_addr[ETH_ALEN];
545 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
546 iface_addr) == 0)
547 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
548 }
549 if (bss == NULL) {
550 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
551 "group is persistent - BSS " MACSTR " not found",
552 MAC2STR(bssid));
553 return 0;
554 }
555
556 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5df7414b
JM		 557 if (p2p == NULL)
558 p2p = wpa_bss_get_vendor_ie_multi_beacon(bss,
559 P2P_IE_VENDOR_TYPE);
b22128ef
JM		 560 if (p2p == NULL) {
561 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
562 "group is persistent - BSS " MACSTR
563 " did not include P2P IE", MAC2STR(bssid));
564 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
565 (u8 *) (bss + 1), bss->ie_len);
566 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
567 ((u8 *) bss + 1) + bss->ie_len,
568 bss->beacon_ie_len);
569 return 0;
570 }
571
572 group_capab = p2p_get_group_capab(p2p);
573 addr = p2p_get_go_dev_addr(p2p);
574 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
575 "group_capab=0x%x", group_capab);
576 if (addr) {
577 os_memcpy(go_dev_addr, addr, ETH_ALEN);
578 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
579 MAC2STR(addr));
580 } else
581 os_memset(go_dev_addr, 0, ETH_ALEN);
582 wpabuf_free(p2p);
583
584 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
585 "go_dev_addr=" MACSTR,
586 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
587
588 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
589}
590
591
4b6baa2f
JMB		 592static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
593 struct wpa_ssid *ssid,
594 const u8 *go_dev_addr)
b22128ef
JM		 595{
596 struct wpa_ssid *s;
597 int changed = 0;
598
599 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
600 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
601 for (s = wpa_s->conf->ssid; s; s = s->next) {
602 if (s->disabled == 2 &&
603 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
604 s->ssid_len == ssid->ssid_len &&
605 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
606 break;
607 }
608
609 if (s) {
610 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
611 "entry");
612 if (ssid->passphrase && !s->passphrase)
613 changed = 1;
614 else if (ssid->passphrase && s->passphrase &&
615 os_strcmp(ssid->passphrase, s->passphrase) != 0)
616 changed = 1;
617 } else {
618 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
619 "entry");
620 changed = 1;
621 s = wpa_config_add_network(wpa_s->conf);
622 if (s == NULL)
4b6baa2f 623 return -1;
c2762e41
JS		 624
625 /*
626 * Instead of network_added we emit persistent_group_added
627 * notification. Also to keep the defense checks in
628 * persistent_group obj registration method, we set the
629 * relevant flags in s to designate it as a persistent group.
630 */
631 s->p2p_group = 1;
632 s->p2p_persistent_group = 1;
633 wpas_notify_persistent_group_added(wpa_s, s);
b22128ef
JM		 634 wpa_config_set_network_defaults(s);
635 }
636
637 s->p2p_group = 1;
638 s->p2p_persistent_group = 1;
639 s->disabled = 2;
640 s->bssid_set = 1;
641 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
642 s->mode = ssid->mode;
643 s->auth_alg = WPA_AUTH_ALG_OPEN;
644 s->key_mgmt = WPA_KEY_MGMT_PSK;
645 s->proto = WPA_PROTO_RSN;
646 s->pairwise_cipher = WPA_CIPHER_CCMP;
d1c8ac88 647 s->export_keys = 1;
b22128ef
JM		 648 if (ssid->passphrase) {
649 os_free(s->passphrase);
650 s->passphrase = os_strdup(ssid->passphrase);
651 }
652 if (ssid->psk_set) {
653 s->psk_set = 1;
654 os_memcpy(s->psk, ssid->psk, 32);
655 }
656 if (s->passphrase && !s->psk_set)
657 wpa_config_update_psk(s);
658 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
659 os_free(s->ssid);
660 s->ssid = os_malloc(ssid->ssid_len);
661 }
662 if (s->ssid) {
663 s->ssid_len = ssid->ssid_len;
664 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
665 }
01a57fe4
JM		 666 if (ssid->mode == WPAS_MODE_P2P_GO && wpa_s->global->add_psk) {
667 dl_list_add(&s->psk_list, &wpa_s->global->add_psk->list);
668 wpa_s->global->add_psk = NULL;
669 changed = 1;
670 }
b22128ef
JM		 671
672#ifndef CONFIG_NO_CONFIG_WRITE
673 if (changed && wpa_s->conf->update_config &&
674 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
675 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
676 }
677#endif /* CONFIG_NO_CONFIG_WRITE */
4b6baa2f
JMB		 678
679 return s->id;
b22128ef
JM		 680}
681
682
fbdcfd57
JM		 683static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
684 const u8 *addr)
685{
686 struct wpa_ssid *ssid, *s;
687 u8 *n;
688 size_t i;
22316795 689 int found = 0;
fbdcfd57
JM		 690
691 ssid = wpa_s->current_ssid;
692 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
693 !ssid->p2p_persistent_group)
694 return;
695
696 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
697 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
698 continue;
699
700 if (s->ssid_len == ssid->ssid_len &&
701 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
702 break;
703 }
704
705 if (s == NULL)
706 return;
707
708 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
709 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
22316795
JM		 710 ETH_ALEN) != 0)
711 continue;
712
713 if (i == s->num_p2p_clients - 1)
714 return; /* already the most recent entry */
715
716 /* move the entry to mark it most recent */
717 os_memmove(s->p2p_client_list + i * ETH_ALEN,
718 s->p2p_client_list + (i + 1) * ETH_ALEN,
719 (s->num_p2p_clients - i - 1) * ETH_ALEN);
720 os_memcpy(s->p2p_client_list +
721 (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
722 found = 1;
723 break;
fbdcfd57
JM		 724 }
725
b4a5dfa9 726 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
22316795
JM		 727 n = os_realloc_array(s->p2p_client_list,
728 s->num_p2p_clients + 1, ETH_ALEN);
729 if (n == NULL)
730 return;
731 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
732 s->p2p_client_list = n;
733 s->num_p2p_clients++;
b4a5dfa9
JM		 734 } else if (!found) {
735 /* Not enough room for an additional entry - drop the oldest
736 * entry */
737 os_memmove(s->p2p_client_list,
738 s->p2p_client_list + ETH_ALEN,
739 (s->num_p2p_clients - 1) * ETH_ALEN);
740 os_memcpy(s->p2p_client_list +
741 (s->num_p2p_clients - 1) * ETH_ALEN,
742 addr, ETH_ALEN);
22316795 743 }
fbdcfd57
JM		 744
745#ifndef CONFIG_NO_CONFIG_WRITE
746 if (wpa_s->parent->conf->update_config &&
747 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
748 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
749#endif /* CONFIG_NO_CONFIG_WRITE */
750}
751
752
b22128ef
JM		 753static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
754 int success)
755{
756 struct wpa_ssid *ssid;
757 const char *ssid_txt;
758 int client;
759 int persistent;
760 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 761 int network_id = -1;
b22128ef
JM		 762
763 /*
764 * This callback is likely called for the main interface. Update wpa_s
765 * to use the group interface if a new interface was created for the
766 * group.
767 */
768 if (wpa_s->global->p2p_group_formation)
769 wpa_s = wpa_s->global->p2p_group_formation;
41f85323
JM		 770 if (wpa_s->p2p_go_group_formation_completed) {
771 wpa_s->global->p2p_group_formation = NULL;
772 wpa_s->p2p_in_provisioning = 0;
773 }
b22128ef
JM		 774
775 if (!success) {
92c4465b
JM		 776 wpa_msg_global(wpa_s->parent, MSG_INFO,
777 P2P_EVENT_GROUP_FORMATION_FAILURE);
8dba4aef
JM		 778 wpas_p2p_group_delete(wpa_s,
779 P2P_GROUP_REMOVAL_FORMATION_FAILED);
b22128ef
JM		 780 return;
781 }
782
92c4465b
JM		 783 wpa_msg_global(wpa_s->parent, MSG_INFO,
784 P2P_EVENT_GROUP_FORMATION_SUCCESS);
b22128ef
JM		 785
786 ssid = wpa_s->current_ssid;
787 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
788 ssid->mode = WPAS_MODE_P2P_GO;
789 p2p_group_notif_formation_done(wpa_s->p2p_group);
790 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
791 }
792
793 persistent = 0;
794 if (ssid) {
795 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
796 client = ssid->mode == WPAS_MODE_INFRA;
797 if (ssid->mode == WPAS_MODE_P2P_GO) {
798 persistent = ssid->p2p_persistent_group;
d7e70476 799 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
b22128ef
JM		 800 ETH_ALEN);
801 } else
802 persistent = wpas_p2p_persistent_group(wpa_s,
803 go_dev_addr,
804 ssid->ssid,
805 ssid->ssid_len);
806 } else {
807 ssid_txt = "";
808 client = wpa_s->p2p_group_interface ==
809 P2P_GROUP_INTERFACE_CLIENT;
62c0d27e 810 os_memset(go_dev_addr, 0, ETH_ALEN);
b22128ef
JM		 811 }
812
813 wpa_s->show_group_started = 0;
814 if (client) {
815 /*
816 * Indicate event only after successfully completed 4-way
817 * handshake, i.e., when the interface is ready for data
818 * packets.
819 */
820 wpa_s->show_group_started = 1;
821 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
822 char psk[65];
823 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
92c4465b
JM		 824 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
825 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr="
826 MACSTR "%s",
827 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
828 MAC2STR(go_dev_addr),
829 persistent ? " [PERSISTENT]" : "");
72044390 830 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 831 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef 832 } else {
92c4465b
JM		 833 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
834 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
835 "go_dev_addr=" MACSTR "%s",
836 wpa_s->ifname, ssid_txt,
837 ssid ? ssid->frequency : 0,
838 ssid && ssid->passphrase ? ssid->passphrase : "",
839 MAC2STR(go_dev_addr),
840 persistent ? " [PERSISTENT]" : "");
72044390 841 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 842 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 843 }
844
845 if (persistent)
4b6baa2f
JMB		 846 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
847 ssid, go_dev_addr);
01a57fe4
JM		 848 else {
849 os_free(wpa_s->global->add_psk);
850 wpa_s->global->add_psk = NULL;
851 }
21fe9e75 852 if (network_id < 0 && ssid)
4b6baa2f 853 network_id = ssid->id;
c1c0b35f 854 if (!client) {
4b6baa2f 855 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
151ab808 856 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
c1c0b35f 857 }
b22128ef
JM		 858}
859
860
24f6497c
JM		 861static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
862 unsigned int freq,
863 const u8 *dst, const u8 *src,
864 const u8 *bssid,
865 const u8 *data, size_t data_len,
866 enum offchannel_send_action_result
867 result)
534525ff 868{
24f6497c 869 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
b22128ef 870
9526fd29 871 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef 872 return;
3ac17eba
JM		 873 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
874 return;
b22128ef 875
24f6497c
JM		 876 switch (result) {
877 case OFFCHANNEL_SEND_ACTION_SUCCESS:
878 res = P2P_SEND_ACTION_SUCCESS;
879 break;
880 case OFFCHANNEL_SEND_ACTION_NO_ACK:
881 res = P2P_SEND_ACTION_NO_ACK;
882 break;
883 case OFFCHANNEL_SEND_ACTION_FAILED:
884 res = P2P_SEND_ACTION_FAILED;
885 break;
b22128ef
JM		 886 }
887
24f6497c 888 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
b22128ef 889
f63b8542
JM		 890 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
891 wpa_s->pending_pd_before_join &&
24f6497c 892 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
175171ac
JM		 893 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
894 wpa_s->p2p_fallback_to_go_neg) {
b22128ef 895 wpa_s->pending_pd_before_join = 0;
175171ac
JM		 896 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
897 "during p2p_connect-auto");
898 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
899 return;
b22128ef
JM		 900 }
901}
902
903
904static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
905 const u8 *src, const u8 *bssid, const u8 *buf,
906 size_t len, unsigned int wait_time)
907{
908 struct wpa_supplicant *wpa_s = ctx;
24f6497c
JM		 909 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
910 wait_time,
b106173a 911 wpas_p2p_send_action_tx_status, 1);
b22128ef
JM		 912}
913
914
915static void wpas_send_action_done(void *ctx)
916{
917 struct wpa_supplicant *wpa_s = ctx;
24f6497c 918 offchannel_send_action_done(wpa_s);
b22128ef
JM		 919}
920
921
922static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
923 struct p2p_go_neg_results *params)
924{
925 if (wpa_s->go_params == NULL) {
926 wpa_s->go_params = os_malloc(sizeof(*params));
927 if (wpa_s->go_params == NULL)
928 return -1;
929 }
930 os_memcpy(wpa_s->go_params, params, sizeof(*params));
931 return 0;
932}
933
934
935static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
936 struct p2p_go_neg_results *res)
937{
3b29972c
JM		 938 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
939 MAC2STR(res->peer_interface_addr));
e9a7ae41
JM		 940 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
941 res->ssid, res->ssid_len);
b22128ef
JM		 942 wpa_supplicant_ap_deinit(wpa_s);
943 wpas_copy_go_neg_results(wpa_s, res);
944 if (res->wps_method == WPS_PBC)
3b29972c 945 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
3c5126a4
JM		 946 else {
947 u16 dev_pw_id = DEV_PW_DEFAULT;
948 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
949 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
b22128ef 950 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
3c5126a4
JM		 951 wpa_s->p2p_pin, 1, dev_pw_id);
952 }
b22128ef
JM		 953}
954
955
01a57fe4
JM		 956static void wpas_p2p_add_psk_list(struct wpa_supplicant *wpa_s,
957 struct wpa_ssid *ssid)
958{
959 struct wpa_ssid *persistent;
960 struct psk_list_entry *psk;
961 struct hostapd_data *hapd;
962
963 if (!wpa_s->ap_iface)
964 return;
965
966 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
967 ssid->ssid_len);
968 if (persistent == NULL)
969 return;
970
971 hapd = wpa_s->ap_iface->bss[0];
972
973 dl_list_for_each(psk, &persistent->psk_list, struct psk_list_entry,
974 list) {
975 struct hostapd_wpa_psk *hpsk;
976
977 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add persistent group PSK entry for "
978 MACSTR " psk=%d",
979 MAC2STR(psk->addr), psk->p2p);
980 hpsk = os_zalloc(sizeof(*hpsk));
981 if (hpsk == NULL)
982 break;
983 os_memcpy(hpsk->psk, psk->psk, PMK_LEN);
984 if (psk->p2p)
985 os_memcpy(hpsk->p2p_dev_addr, psk->addr, ETH_ALEN);
986 else
987 os_memcpy(hpsk->addr, psk->addr, ETH_ALEN);
988 hpsk->next = hapd->conf->ssid.wpa_psk;
989 hapd->conf->ssid.wpa_psk = hpsk;
990 }
991}
992
993
b22128ef
JM		 994static void p2p_go_configured(void *ctx, void *data)
995{
996 struct wpa_supplicant *wpa_s = ctx;
997 struct p2p_go_neg_results *params = data;
998 struct wpa_ssid *ssid;
4b6baa2f 999 int network_id = -1;
b22128ef
JM		 1000
1001 ssid = wpa_s->current_ssid;
1002 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
1003 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
d1b024c9
JM		 1004 if (wpa_s->global->p2p_group_formation == wpa_s)
1005 wpa_s->global->p2p_group_formation = NULL;
bb4d4deb 1006 if (os_strlen(params->passphrase) > 0) {
92c4465b
JM		 1007 wpa_msg_global(wpa_s->parent, MSG_INFO,
1008 P2P_EVENT_GROUP_STARTED
1009 "%s GO ssid=\"%s\" freq=%d "
1010 "passphrase=\"%s\" go_dev_addr=" MACSTR
1011 "%s", wpa_s->ifname,
1012 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
1013 ssid->frequency, params->passphrase,
1014 MAC2STR(wpa_s->global->p2p_dev_addr),
1015 params->persistent_group ?
1016 " [PERSISTENT]" : "");
bb4d4deb
MH		 1017 } else {
1018 char psk[65];
1019 wpa_snprintf_hex(psk, sizeof(psk), params->psk,
1020 sizeof(params->psk));
92c4465b
JM		 1021 wpa_msg_global(wpa_s->parent, MSG_INFO,
1022 P2P_EVENT_GROUP_STARTED
1023 "%s GO ssid=\"%s\" freq=%d psk=%s "
1024 "go_dev_addr=" MACSTR "%s",
1025 wpa_s->ifname,
1026 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
1027 ssid->frequency, psk,
1028 MAC2STR(wpa_s->global->p2p_dev_addr),
1029 params->persistent_group ?
1030 " [PERSISTENT]" : "");
bb4d4deb 1031 }
4b6baa2f 1032
151ab808 1033 os_get_reltime(&wpa_s->global->p2p_go_wait_client);
01a57fe4 1034 if (params->persistent_group) {
4b6baa2f 1035 network_id = wpas_p2p_store_persistent_group(
b22128ef 1036 wpa_s->parent, ssid,
d7e70476 1037 wpa_s->global->p2p_dev_addr);
01a57fe4
JM		 1038 wpas_p2p_add_psk_list(wpa_s, ssid);
1039 }
4b6baa2f
JMB		 1040 if (network_id < 0)
1041 network_id = ssid->id;
1042 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
72044390 1043 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 1044 wpas_p2p_set_group_idle_timeout(wpa_s);
bbc6c729
JM		 1045
1046 if (wpa_s->p2p_first_connection_timeout) {
1047 wpa_dbg(wpa_s, MSG_DEBUG,
1048 "P2P: Start group formation timeout of %d seconds until first data connection on GO",
1049 wpa_s->p2p_first_connection_timeout);
1050 wpa_s->p2p_go_group_formation_completed = 0;
1051 wpa_s->global->p2p_group_formation = wpa_s;
1052 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1053 wpa_s->parent, NULL);
1054 eloop_register_timeout(
1055 wpa_s->p2p_first_connection_timeout, 0,
1056 wpas_p2p_group_formation_timeout,
1057 wpa_s->parent, NULL);
1058 }
1059
b22128ef
JM		 1060 return;
1061 }
1062
1063 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
1064 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
1065 params->peer_interface_addr)) {
1066 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
1067 "filtering");
1068 return;
1069 }
1070 if (params->wps_method == WPS_PBC)
d601247c 1071 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
c3daaf33 1072 params->peer_device_addr);
b22128ef
JM		 1073 else if (wpa_s->p2p_pin[0])
1074 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
c423708f 1075 wpa_s->p2p_pin, NULL, 0, 0);
b22128ef
JM		 1076 os_free(wpa_s->go_params);
1077 wpa_s->go_params = NULL;
1078}
1079
1080
1081static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
1082 struct p2p_go_neg_results *params,
1083 int group_formation)
1084{
1085 struct wpa_ssid *ssid;
1086
ac06fb12
JM		 1087 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
1088 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
1089 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
1090 "results");
b22128ef 1091 return;
ac06fb12 1092 }
b22128ef
JM		 1093
1094 ssid = wpa_config_add_network(wpa_s->conf);
ac06fb12
JM		 1095 if (ssid == NULL) {
1096 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
b22128ef 1097 return;
ac06fb12 1098 }
b22128ef 1099
a9e02d59
JM		 1100 wpa_s->show_group_started = 0;
1101
b22128ef
JM		 1102 wpa_config_set_network_defaults(ssid);
1103 ssid->temporary = 1;
1104 ssid->p2p_group = 1;
1105 ssid->p2p_persistent_group = params->persistent_group;
1106 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
1107 WPAS_MODE_P2P_GO;
1108 ssid->frequency = params->freq;
7aeac985 1109 ssid->ht40 = params->ht40;
20ea1ca4 1110 ssid->vht = params->vht;
b22128ef
JM		 1111 ssid->ssid = os_zalloc(params->ssid_len + 1);
1112 if (ssid->ssid) {
1113 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
1114 ssid->ssid_len = params->ssid_len;
1115 }
1116 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
1117 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
1118 ssid->proto = WPA_PROTO_RSN;
1119 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
bb4d4deb
MH		 1120 if (os_strlen(params->passphrase) > 0) {
1121 ssid->passphrase = os_strdup(params->passphrase);
1122 if (ssid->passphrase == NULL) {
92c4465b
JM		 1123 wpa_msg_global(wpa_s, MSG_ERROR,
1124 "P2P: Failed to copy passphrase for GO");
bb4d4deb
MH		 1125 wpa_config_remove_network(wpa_s->conf, ssid->id);
1126 return;
1127 }
1128 } else
1129 ssid->passphrase = NULL;
30c371e8
MH		 1130 ssid->psk_set = params->psk_set;
1131 if (ssid->psk_set)
1132 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
6350a148 1133 else if (ssid->passphrase)
30c371e8 1134 wpa_config_update_psk(ssid);
462a7439 1135 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
b22128ef
JM		 1136
1137 wpa_s->ap_configured_cb = p2p_go_configured;
1138 wpa_s->ap_configured_cb_ctx = wpa_s;
1139 wpa_s->ap_configured_cb_data = wpa_s->go_params;
7dcdcfd6 1140 wpa_s->connect_without_scan = ssid;
b22128ef
JM		 1141 wpa_s->reassociate = 1;
1142 wpa_s->disconnected = 0;
ac06fb12
JM		 1143 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
1144 "start GO)");
b22128ef
JM		 1145 wpa_supplicant_req_scan(wpa_s, 0, 0);
1146}
1147
1148
1149static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
1150 const struct wpa_supplicant *src)
1151{
1152 struct wpa_config *d;
1153 const struct wpa_config *s;
1154
1155 d = dst->conf;
1156 s = src->conf;
1157
1158#define C(n) if (s->n) d->n = os_strdup(s->n)
1159 C(device_name);
1160 C(manufacturer);
1161 C(model_name);
1162 C(model_number);
1163 C(serial_number);
b22128ef
JM		 1164 C(config_methods);
1165#undef C
3071e181 1166
2f646b6e
JB		 1167 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
1168 os_memcpy(d->sec_device_type, s->sec_device_type,
1169 sizeof(d->sec_device_type));
1170 d->num_sec_device_types = s->num_sec_device_types;
1171
3071e181 1172 d->p2p_group_idle = s->p2p_group_idle;
b029bd33 1173 d->p2p_intra_bss = s->p2p_intra_bss;
acc247b2 1174 d->persistent_reconnect = s->persistent_reconnect;
f571b593 1175 d->max_num_sta = s->max_num_sta;
1298c145 1176 d->pbc_in_m1 = s->pbc_in_m1;
4342326f 1177 d->ignore_old_scan_res = s->ignore_old_scan_res;
41b1a76a 1178 d->beacon_int = s->beacon_int;
5046eb4e 1179 d->disassoc_low_ack = s->disassoc_low_ack;
f22f274b 1180 d->disable_scan_offload = s->disable_scan_offload;
b22128ef
JM		 1181}
1182
1183
2e5ba4b6
AS		 1184static void wpas_p2p_get_group_ifname(struct wpa_supplicant *wpa_s,
1185 char *ifname, size_t len)
1186{
1187 char *ifname_ptr = wpa_s->ifname;
1188
1189 if (os_strncmp(wpa_s->ifname, P2P_MGMT_DEVICE_PREFIX,
1190 os_strlen(P2P_MGMT_DEVICE_PREFIX)) == 0) {
1191 ifname_ptr = os_strrchr(wpa_s->ifname, '-') + 1;
1192 }
1193
1194 os_snprintf(ifname, len, "p2p-%s-%d", ifname_ptr, wpa_s->p2p_group_idx);
1195 if (os_strlen(ifname) >= IFNAMSIZ &&
1196 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
1197 /* Try to avoid going over the IFNAMSIZ length limit */
41c526f3 1198 os_snprintf(ifname, len, "p2p-%d", wpa_s->p2p_group_idx);
2e5ba4b6
AS		 1199 }
1200}
1201
1202
b22128ef
JM		 1203static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
1204 enum wpa_driver_if_type type)
1205{
1206 char ifname[120], force_ifname[120];
1207
1208 if (wpa_s->pending_interface_name[0]) {
1209 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
1210 "- skip creation of a new one");
1211 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
1212 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
1213 "unknown?! ifname='%s'",
1214 wpa_s->pending_interface_name);
1215 return -1;
1216 }
1217 return 0;
1218 }
1219
2e5ba4b6 1220 wpas_p2p_get_group_ifname(wpa_s, ifname, sizeof(ifname));
b22128ef
JM		 1221 force_ifname[0] = '\0';
1222
1223 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
1224 ifname);
1225 wpa_s->p2p_group_idx++;
1226
1227 wpa_s->pending_interface_type = type;
1228 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
e17a2477 1229 wpa_s->pending_interface_addr, NULL) < 0) {
b22128ef
JM		 1230 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1231 "interface");
1232 return -1;
1233 }
1234
1235 if (force_ifname[0]) {
1236 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1237 force_ifname);
1238 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1239 sizeof(wpa_s->pending_interface_name));
1240 } else
1241 os_strlcpy(wpa_s->pending_interface_name, ifname,
1242 sizeof(wpa_s->pending_interface_name));
1243 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1244 MACSTR, wpa_s->pending_interface_name,
1245 MAC2STR(wpa_s->pending_interface_addr));
1246
1247 return 0;
1248}
1249
1250
1251static void wpas_p2p_remove_pending_group_interface(
1252 struct wpa_supplicant *wpa_s)
1253{
1254 if (!wpa_s->pending_interface_name[0] ||
1255 is_zero_ether_addr(wpa_s->pending_interface_addr))
1256 return; /* No pending virtual interface */
1257
1258 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1259 wpa_s->pending_interface_name);
1260 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1261 wpa_s->pending_interface_name);
1262 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1263 wpa_s->pending_interface_name[0] = '\0';
1264}
1265
1266
1267static struct wpa_supplicant *
1268wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1269{
1270 struct wpa_interface iface;
1271 struct wpa_supplicant *group_wpa_s;
1272
1273 if (!wpa_s->pending_interface_name[0]) {
1274 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
d75e8806
JM		 1275 if (!wpas_p2p_create_iface(wpa_s))
1276 return NULL;
1277 /*
1278 * Something has forced us to remove the pending interface; try
1279 * to create a new one and hope for the best that we will get
1280 * the same local address.
1281 */
1282 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1283 WPA_IF_P2P_CLIENT) < 0)
1284 return NULL;
b22128ef
JM		 1285 }
1286
1287 os_memset(&iface, 0, sizeof(iface));
1288 iface.ifname = wpa_s->pending_interface_name;
1289 iface.driver = wpa_s->driver->name;
78f79fe5
JM		 1290 if (wpa_s->conf->ctrl_interface == NULL &&
1291 wpa_s->parent != wpa_s &&
1292 wpa_s->p2p_mgmt &&
1293 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE))
1294 iface.ctrl_interface = wpa_s->parent->conf->ctrl_interface;
1295 else
1296 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
b22128ef
JM		 1297 iface.driver_param = wpa_s->conf->driver_param;
1298 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1299 if (group_wpa_s == NULL) {
1300 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1301 "wpa_supplicant interface");
1302 return NULL;
1303 }
1304 wpa_s->pending_interface_name[0] = '\0';
1305 group_wpa_s->parent = wpa_s;
1306 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1307 P2P_GROUP_INTERFACE_CLIENT;
1308 wpa_s->global->p2p_group_formation = group_wpa_s;
1309
1310 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1311
1312 return group_wpa_s;
1313}
1314
1315
1316static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1317 void *timeout_ctx)
1318{
1319 struct wpa_supplicant *wpa_s = eloop_ctx;
1320 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1075b295
JM		 1321 wpas_p2p_group_formation_failed(wpa_s);
1322}
1323
1324
1325void wpas_p2p_group_formation_failed(struct wpa_supplicant *wpa_s)
1326{
1327 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1328 wpa_s->parent, NULL);
b22128ef
JM		 1329 if (wpa_s->global->p2p)
1330 p2p_group_formation_failed(wpa_s->global->p2p);
3ac17eba
JM		 1331 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1332 wpa_drv_p2p_group_formation_failed(wpa_s);
b22128ef
JM		 1333 wpas_group_formation_completed(wpa_s, 0);
1334}
1335
1336
b2b688d1
VKE		 1337void wpas_p2p_ap_setup_failed(struct wpa_supplicant *wpa_s)
1338{
1339 if (wpa_s->global->p2p_group_formation != wpa_s)
1340 return;
1341 /* Speed up group formation timeout since this cannot succeed */
1342 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
1343 wpa_s->parent, NULL);
1344 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
1345 wpa_s->parent, NULL);
1346}
1347
1348
b22128ef
JM		 1349void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1350{
1351 struct wpa_supplicant *wpa_s = ctx;
1352
8eada5ca 1353 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1354 wpa_drv_cancel_remain_on_channel(wpa_s);
1355 wpa_s->off_channel_freq = 0;
07a30a66 1356 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 1357 }
1358
1359 if (res->status) {
92c4465b
JM		 1360 wpa_msg_global(wpa_s, MSG_INFO,
1361 P2P_EVENT_GO_NEG_FAILURE "status=%d",
1362 res->status);
e5a359cf 1363 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef
JM		 1364 wpas_p2p_remove_pending_group_interface(wpa_s);
1365 return;
1366 }
1367
e2308e4b
RM		 1368 if (wpa_s->p2p_go_ht40)
1369 res->ht40 = 1;
20ea1ca4
EP		 1370 if (wpa_s->p2p_go_vht)
1371 res->vht = 1;
e2308e4b 1372
8d660e04
JM		 1373 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS "role=%s "
1374 "freq=%d ht40=%d peer_dev=" MACSTR " peer_iface=" MACSTR
1375 " wps_method=%s",
1376 res->role_go ? "GO" : "client", res->freq, res->ht40,
1377 MAC2STR(res->peer_device_addr),
1378 MAC2STR(res->peer_interface_addr),
1379 p2p_wps_method_text(res->wps_method));
e5a359cf 1380 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef 1381
23c84252
JM		 1382 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1383 struct wpa_ssid *ssid;
1384 ssid = wpa_config_get_network(wpa_s->conf,
1385 wpa_s->p2p_persistent_id);
1386 if (ssid && ssid->disabled == 2 &&
1387 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1388 size_t len = os_strlen(ssid->passphrase);
1389 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1390 "on requested persistent group");
1391 os_memcpy(res->passphrase, ssid->passphrase, len);
1392 res->passphrase[len] = '\0';
1393 }
1394 }
1395
b22128ef
JM		 1396 if (wpa_s->create_p2p_iface) {
1397 struct wpa_supplicant *group_wpa_s =
1398 wpas_p2p_init_group_interface(wpa_s, res->role_go);
1399 if (group_wpa_s == NULL) {
1400 wpas_p2p_remove_pending_group_interface(wpa_s);
1401 return;
1402 }
3c5126a4 1403 if (group_wpa_s != wpa_s) {
b22128ef
JM		 1404 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1405 sizeof(group_wpa_s->p2p_pin));
3c5126a4
JM		 1406 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1407 }
b22128ef
JM		 1408 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1409 wpa_s->pending_interface_name[0] = '\0';
1410 group_wpa_s->p2p_in_provisioning = 1;
1411
1412 if (res->role_go)
1413 wpas_start_wps_go(group_wpa_s, res, 1);
1414 else
1415 wpas_start_wps_enrollee(group_wpa_s, res);
1416 } else {
1417 wpa_s->p2p_in_provisioning = 1;
1418 wpa_s->global->p2p_group_formation = wpa_s;
1419
1420 if (res->role_go)
1421 wpas_start_wps_go(wpa_s, res, 1);
1422 else
1423 wpas_start_wps_enrollee(ctx, res);
1424 }
1425
1426 wpa_s->p2p_long_listen = 0;
1427 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1428
1429 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ae3e3421
JM		 1430 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1431 (res->peer_config_timeout % 100) * 10000,
1432 wpas_p2p_group_formation_timeout, wpa_s, NULL);
b22128ef
JM		 1433}
1434
1435
3dfda83d 1436void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
b22128ef
JM		 1437{
1438 struct wpa_supplicant *wpa_s = ctx;
92c4465b
JM		 1439 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1440 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
32d1bce0
KRK		 1441
1442 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
b22128ef
JM		 1443}
1444
1445
c5db8e51 1446void wpas_dev_found(void *ctx, const u8 *addr,
8fd7dc1b
JB		 1447 const struct p2p_peer_info *info,
1448 int new_device)
b22128ef 1449{
5506d184 1450#ifndef CONFIG_NO_STDOUT_DEBUG
b22128ef
JM		 1451 struct wpa_supplicant *wpa_s = ctx;
1452 char devtype[WPS_DEV_TYPE_BUFSIZE];
b125c48f
DS		 1453 char *wfd_dev_info_hex = NULL;
1454
1455#ifdef CONFIG_WIFI_DISPLAY
1456 wfd_dev_info_hex = wifi_display_subelem_hex(info->wfd_subelems,
1457 WFD_SUBELEM_DEVICE_INFO);
1458#endif /* CONFIG_WIFI_DISPLAY */
c5db8e51 1459
92c4465b
JM		 1460 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1461 " p2p_dev_addr=" MACSTR
1462 " pri_dev_type=%s name='%s' config_methods=0x%x "
b125c48f 1463 "dev_capab=0x%x group_capab=0x%x%s%s",
92c4465b
JM		 1464 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1465 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1466 sizeof(devtype)),
b125c48f
DS		 1467 info->device_name, info->config_methods,
1468 info->dev_capab, info->group_capab,
1469 wfd_dev_info_hex ? " wfd_dev_info=0x" : "",
1470 wfd_dev_info_hex ? wfd_dev_info_hex : "");
5506d184 1471#endif /* CONFIG_NO_STDOUT_DEBUG */
d642d2d2 1472
b125c48f
DS		 1473 os_free(wfd_dev_info_hex);
1474
d642d2d2 1475 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
b22128ef
JM		 1476}
1477
1478
56eeb8f2
JB		 1479static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1480{
1481 struct wpa_supplicant *wpa_s = ctx;
1482
92c4465b
JM		 1483 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1484 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
3074d8f1 1485
56eeb8f2
JB		 1486 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1487}
1488
1489
710ae9ac
JM		 1490static void wpas_find_stopped(void *ctx)
1491{
1492 struct wpa_supplicant *wpa_s = ctx;
92c4465b 1493 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_FIND_STOPPED);
710ae9ac
JM		 1494}
1495
1496
b22128ef
JM		 1497static int wpas_start_listen(void *ctx, unsigned int freq,
1498 unsigned int duration,
1499 const struct wpabuf *probe_resp_ie)
1500{
1501 struct wpa_supplicant *wpa_s = ctx;
1502
0e2e565a 1503 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
b22128ef
JM		 1504
1505 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1506 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1507 "report received Probe Request frames");
1508 return -1;
1509 }
1510
1511 wpa_s->pending_listen_freq = freq;
1512 wpa_s->pending_listen_duration = duration;
1513
1514 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1515 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1516 "to remain on channel (%u MHz) for Listen "
1517 "state", freq);
1518 wpa_s->pending_listen_freq = 0;
1519 return -1;
1520 }
09d660b9 1521 wpa_s->off_channel_freq = 0;
07a30a66 1522 wpa_s->roc_waiting_drv_freq = freq;
b22128ef
JM		 1523
1524 return 0;
1525}
1526
1527
1528static void wpas_stop_listen(void *ctx)
1529{
1530 struct wpa_supplicant *wpa_s = ctx;
6cb22d2f 1531 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1532 wpa_drv_cancel_remain_on_channel(wpa_s);
1533 wpa_s->off_channel_freq = 0;
07a30a66 1534 wpa_s->roc_waiting_drv_freq = 0;
b22128ef 1535 }
839b33ad 1536 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
b22128ef
JM		 1537 wpa_drv_probe_req_report(wpa_s, 0);
1538}
1539
1540
1541static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1542{
1543 struct wpa_supplicant *wpa_s = ctx;
9dbf53fe 1544 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
b22128ef
JM		 1545}
1546
1547
8c9ad085
JM		 1548/*
1549 * DNS Header section is used only to calculate compression pointers, so the
1550 * contents of this data does not matter, but the length needs to be reserved
1551 * in the virtual packet.
1552 */
1553#define DNS_HEADER_LEN 12
1554
1555/*
1556 * 27-octet in-memory packet from P2P specification containing two implied
1557 * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
1558 */
1559#define P2P_SD_IN_MEMORY_LEN 27
1560
1561static int p2p_sd_dns_uncompress_label(char **upos, char *uend, u8 *start,
1562 u8 **spos, const u8 *end)
1563{
1564 while (*spos < end) {
1565 u8 val = ((*spos)[0] & 0xc0) >> 6;
1566 int len;
1567
1568 if (val == 1 || val == 2) {
1569 /* These are reserved values in RFC 1035 */
1570 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1571 "sequence starting with 0x%x", val);
1572 return -1;
1573 }
1574
1575 if (val == 3) {
1576 u16 offset;
1577 u8 *spos_tmp;
1578
1579 /* Offset */
1580 if (*spos + 2 > end) {
1581 wpa_printf(MSG_DEBUG, "P2P: No room for full "
1582 "DNS offset field");
1583 return -1;
1584 }
1585
1586 offset = (((*spos)[0] & 0x3f) << 8) | (*spos)[1];
1587 if (offset >= *spos - start) {
1588 wpa_printf(MSG_DEBUG, "P2P: Invalid DNS "
1589 "pointer offset %u", offset);
1590 return -1;
1591 }
1592
1593 (*spos) += 2;
1594 spos_tmp = start + offset;
1595 return p2p_sd_dns_uncompress_label(upos, uend, start,
1596 &spos_tmp,
1597 *spos - 2);
1598 }
1599
1600 /* Label */
1601 len = (*spos)[0] & 0x3f;
1602 if (len == 0)
1603 return 0;
1604
1605 (*spos)++;
1606 if (*spos + len > end) {
1607 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1608 "sequence - no room for label with length "
1609 "%u", len);
1610 return -1;
1611 }
1612
1613 if (*upos + len + 2 > uend)
1614 return -2;
1615
1616 os_memcpy(*upos, *spos, len);
1617 *spos += len;
1618 *upos += len;
1619 (*upos)[0] = '.';
1620 (*upos)++;
1621 (*upos)[0] = '\0';
1622 }
1623
1624 return 0;
1625}
1626
1627
1628/* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
1629 * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
1630 * not large enough */
1631static int p2p_sd_dns_uncompress(char *buf, size_t buf_len, const u8 *msg,
1632 size_t msg_len, size_t offset)
1633{
1634 /* 27-octet in-memory packet from P2P specification */
1635 const char *prefix = "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
1636 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
1637 u8 *tmp, *end, *spos;
1638 char *upos, *uend;
1639 int ret = 0;
1640
1641 if (buf_len < 2)
1642 return -1;
1643 if (offset > msg_len)
1644 return -1;
1645
1646 tmp = os_malloc(DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN + msg_len);
1647 if (tmp == NULL)
1648 return -1;
1649 spos = tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN;
1650 end = spos + msg_len;
1651 spos += offset;
1652
1653 os_memset(tmp, 0, DNS_HEADER_LEN);
1654 os_memcpy(tmp + DNS_HEADER_LEN, prefix, P2P_SD_IN_MEMORY_LEN);
1655 os_memcpy(tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN, msg, msg_len);
1656
1657 upos = buf;
1658 uend = buf + buf_len;
1659
1660 ret = p2p_sd_dns_uncompress_label(&upos, uend, tmp, &spos, end);
1661 if (ret) {
1662 os_free(tmp);
1663 return ret;
1664 }
1665
1666 if (upos == buf) {
1667 upos[0] = '.';
1668 upos[1] = '\0';
1669 } else if (upos[-1] == '.')
1670 upos[-1] = '\0';
1671
1672 os_free(tmp);
1673 return 0;
1674}
1675
1676
b22128ef
JM		 1677static struct p2p_srv_bonjour *
1678wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1679 const struct wpabuf *query)
1680{
1681 struct p2p_srv_bonjour *bsrv;
1682 size_t len;
1683
1684 len = wpabuf_len(query);
1685 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1686 struct p2p_srv_bonjour, list) {
1687 if (len == wpabuf_len(bsrv->query) &&
1688 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1689 len) == 0)
1690 return bsrv;
1691 }
1692 return NULL;
1693}
1694
1695
1696static struct p2p_srv_upnp *
1697wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1698 const char *service)
1699{
1700 struct p2p_srv_upnp *usrv;
1701
1702 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1703 struct p2p_srv_upnp, list) {
1704 if (version == usrv->version &&
1705 os_strcmp(service, usrv->service) == 0)
1706 return usrv;
1707 }
1708 return NULL;
1709}
1710
1711
1712static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1713 u8 srv_trans_id)
1714{
1715 u8 *len_pos;
1716
1717 if (wpabuf_tailroom(resp) < 5)
1718 return;
1719
1720 /* Length (to be filled) */
1721 len_pos = wpabuf_put(resp, 2);
1722 wpabuf_put_u8(resp, srv_proto);
1723 wpabuf_put_u8(resp, srv_trans_id);
1724 /* Status Code */
1725 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1726 /* Response Data: empty */
1727 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1728}
1729
1730
1731static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1732 struct wpabuf *resp, u8 srv_trans_id)
1733{
1734 struct p2p_srv_bonjour *bsrv;
1735 u8 *len_pos;
1736
1737 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1738
1739 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1740 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1741 return;
1742 }
1743
1744 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1745 struct p2p_srv_bonjour, list) {
1746 if (wpabuf_tailroom(resp) <
1747 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1748 return;
1749 /* Length (to be filled) */
1750 len_pos = wpabuf_put(resp, 2);
1751 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1752 wpabuf_put_u8(resp, srv_trans_id);
1753 /* Status Code */
1754 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1755 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1756 wpabuf_head(bsrv->resp),
1757 wpabuf_len(bsrv->resp));
1758 /* Response Data */
1759 wpabuf_put_buf(resp, bsrv->query); /* Key */
1760 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1761 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1762 2);
1763 }
1764}
1765
1766
8c9ad085
JM		 1767static int match_bonjour_query(struct p2p_srv_bonjour *bsrv, const u8 *query,
1768 size_t query_len)
1769{
1770 char str_rx[256], str_srv[256];
1771
1772 if (query_len < 3 || wpabuf_len(bsrv->query) < 3)
1773 return 0; /* Too short to include DNS Type and Version */
1774 if (os_memcmp(query + query_len - 3,
1775 wpabuf_head_u8(bsrv->query) + wpabuf_len(bsrv->query) - 3,
1776 3) != 0)
1777 return 0; /* Mismatch in DNS Type or Version */
1778 if (query_len == wpabuf_len(bsrv->query) &&
1779 os_memcmp(query, wpabuf_head(bsrv->query), query_len - 3) == 0)
1780 return 1; /* Binary match */
1781
1782 if (p2p_sd_dns_uncompress(str_rx, sizeof(str_rx), query, query_len - 3,
1783 0))
1784 return 0; /* Failed to uncompress query */
1785 if (p2p_sd_dns_uncompress(str_srv, sizeof(str_srv),
1786 wpabuf_head(bsrv->query),
1787 wpabuf_len(bsrv->query) - 3, 0))
1788 return 0; /* Failed to uncompress service */
1789
1790 return os_strcmp(str_rx, str_srv) == 0;
1791}
1792
1793
b22128ef
JM		 1794static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1795 struct wpabuf *resp, u8 srv_trans_id,
1796 const u8 *query, size_t query_len)
1797{
1798 struct p2p_srv_bonjour *bsrv;
b22128ef 1799 u8 *len_pos;
560f8bda 1800 int matches = 0;
b22128ef
JM		 1801
1802 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1803 query, query_len);
1804 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1805 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1806 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1807 srv_trans_id);
1808 return;
1809 }
1810
1811 if (query_len == 0) {
1812 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1813 return;
1814 }
1815
560f8bda
JM		 1816 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1817 struct p2p_srv_bonjour, list) {
8c9ad085 1818 if (!match_bonjour_query(bsrv, query, query_len))
560f8bda
JM		 1819 continue;
1820
1821 if (wpabuf_tailroom(resp) <
1822 5 + query_len + wpabuf_len(bsrv->resp))
1823 return;
1824
1825 matches++;
b22128ef 1826
560f8bda
JM		 1827 /* Length (to be filled) */
1828 len_pos = wpabuf_put(resp, 2);
1829 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1830 wpabuf_put_u8(resp, srv_trans_id);
1831
1832 /* Status Code */
1833 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1834 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1835 wpabuf_head(bsrv->resp),
1836 wpabuf_len(bsrv->resp));
1837
1838 /* Response Data */
1839 wpabuf_put_data(resp, query, query_len); /* Key */
1840 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1841
1842 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1843 }
1844
1845 if (matches == 0) {
b22128ef
JM		 1846 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1847 "available");
560f8bda
JM		 1848 if (wpabuf_tailroom(resp) < 5)
1849 return;
1850
1851 /* Length (to be filled) */
1852 len_pos = wpabuf_put(resp, 2);
1853 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1854 wpabuf_put_u8(resp, srv_trans_id);
b22128ef
JM		 1855
1856 /* Status Code */
bf608cad 1857 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1858 /* Response Data: empty */
1859 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1860 2);
b22128ef 1861 }
b22128ef
JM		 1862}
1863
1864
1865static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1866 struct wpabuf *resp, u8 srv_trans_id)
1867{
1868 struct p2p_srv_upnp *usrv;
1869 u8 *len_pos;
1870
1871 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1872
1873 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1874 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1875 return;
1876 }
1877
1878 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1879 struct p2p_srv_upnp, list) {
1880 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1881 return;
1882
1883 /* Length (to be filled) */
1884 len_pos = wpabuf_put(resp, 2);
1885 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1886 wpabuf_put_u8(resp, srv_trans_id);
1887
1888 /* Status Code */
1889 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1890 /* Response Data */
1891 wpabuf_put_u8(resp, usrv->version);
1892 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1893 usrv->service);
1894 wpabuf_put_str(resp, usrv->service);
1895 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1896 2);
1897 }
1898}
1899
1900
1901static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1902 struct wpabuf *resp, u8 srv_trans_id,
1903 const u8 *query, size_t query_len)
1904{
1905 struct p2p_srv_upnp *usrv;
1906 u8 *len_pos;
1907 u8 version;
1908 char *str;
1909 int count = 0;
1910
1911 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1912 query, query_len);
1913
1914 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1915 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1916 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1917 srv_trans_id);
1918 return;
1919 }
1920
1921 if (query_len == 0) {
1922 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1923 return;
1924 }
1925
b22128ef
JM		 1926 if (wpabuf_tailroom(resp) < 5)
1927 return;
1928
1929 /* Length (to be filled) */
1930 len_pos = wpabuf_put(resp, 2);
1931 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1932 wpabuf_put_u8(resp, srv_trans_id);
1933
79222cfa
JM		 1934 version = query[0];
1935 str = os_malloc(query_len);
1936 if (str == NULL)
1937 return;
1938 os_memcpy(str, query + 1, query_len - 1);
1939 str[query_len - 1] = '\0';
1940
b22128ef
JM		 1941 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1942 struct p2p_srv_upnp, list) {
1943 if (version != usrv->version)
1944 continue;
1945
1946 if (os_strcmp(str, "ssdp:all") != 0 &&
1947 os_strstr(usrv->service, str) == NULL)
1948 continue;
1949
1950 if (wpabuf_tailroom(resp) < 2)
1951 break;
1952 if (count == 0) {
1953 /* Status Code */
1954 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1955 /* Response Data */
1956 wpabuf_put_u8(resp, version);
1957 } else
1958 wpabuf_put_u8(resp, ',');
1959
1960 count++;
1961
1962 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1963 usrv->service);
1964 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1965 break;
1966 wpabuf_put_str(resp, usrv->service);
1967 }
714b8b53 1968 os_free(str);
b22128ef
JM		 1969
1970 if (count == 0) {
1971 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1972 "available");
1973 /* Status Code */
bf608cad 1974 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1975 /* Response Data: empty */
1976 }
1977
1978 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1979}
1980
1981
6ffdc2f7
JM		 1982#ifdef CONFIG_WIFI_DISPLAY
1983static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
1984 struct wpabuf *resp, u8 srv_trans_id,
1985 const u8 *query, size_t query_len)
1986{
1987 const u8 *pos;
1988 u8 role;
1989 u8 *len_pos;
1990
1991 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
1992
1993 if (!wpa_s->global->wifi_display) {
1994 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
1995 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
1996 srv_trans_id);
1997 return;
1998 }
1999
2000 if (query_len < 1) {
2001 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
2002 "Role");
2003 return;
2004 }
2005
2006 if (wpabuf_tailroom(resp) < 5)
2007 return;
2008
2009 pos = query;
2010 role = *pos++;
2011 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
2012
2013 /* TODO: role specific handling */
2014
2015 /* Length (to be filled) */
2016 len_pos = wpabuf_put(resp, 2);
2017 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
2018 wpabuf_put_u8(resp, srv_trans_id);
2019 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
2020
2021 while (pos < query + query_len) {
2022 if (*pos < MAX_WFD_SUBELEMS &&
2023 wpa_s->global->wfd_subelem[*pos] &&
2024 wpabuf_tailroom(resp) >=
2025 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
2026 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
2027 "subelement %u", *pos);
2028 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
2029 }
2030 pos++;
2031 }
2032
2033 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
2034}
2035#endif /* CONFIG_WIFI_DISPLAY */
2036
2037
b22128ef
JM		 2038void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
2039 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
2040{
2041 struct wpa_supplicant *wpa_s = ctx;
2042 const u8 *pos = tlvs;
2043 const u8 *end = tlvs + tlvs_len;
2044 const u8 *tlv_end;
2045 u16 slen;
2046 struct wpabuf *resp;
2047 u8 srv_proto, srv_trans_id;
2048 size_t buf_len;
2049 char *buf;
2050
2051 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
2052 tlvs, tlvs_len);
2053 buf_len = 2 * tlvs_len + 1;
2054 buf = os_malloc(buf_len);
2055 if (buf) {
2056 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2057 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
2058 MACSTR " %u %u %s",
2059 freq, MAC2STR(sa), dialog_token, update_indic,
2060 buf);
2061 os_free(buf);
2062 }
2063
3b655312 2064 if (wpa_s->p2p_sd_over_ctrl_iface) {
2065 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2066 update_indic, tlvs, tlvs_len);
b22128ef 2067 return; /* to be processed by an external program */
3b655312 2068 }
b22128ef
JM		 2069
2070 resp = wpabuf_alloc(10000);
2071 if (resp == NULL)
2072 return;
2073
2074 while (pos + 1 < end) {
2075 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
2076 slen = WPA_GET_LE16(pos);
2077 pos += 2;
2078 if (pos + slen > end || slen < 2) {
2079 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
2080 "length");
2081 wpabuf_free(resp);
2082 return;
2083 }
2084 tlv_end = pos + slen;
2085
2086 srv_proto = *pos++;
2087 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2088 srv_proto);
2089 srv_trans_id = *pos++;
2090 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2091 srv_trans_id);
2092
2093 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
2094 pos, tlv_end - pos);
2095
6e6963ea
JM		 2096
2097 if (wpa_s->force_long_sd) {
2098 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
2099 "response");
2100 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2101 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2102 goto done;
2103 }
2104
b22128ef
JM		 2105 switch (srv_proto) {
2106 case P2P_SERV_ALL_SERVICES:
2107 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
2108 "for all services");
2109 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
2110 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
2111 wpa_printf(MSG_DEBUG, "P2P: No service "
2112 "discovery protocols available");
2113 wpas_sd_add_proto_not_avail(
2114 resp, P2P_SERV_ALL_SERVICES,
2115 srv_trans_id);
2116 break;
2117 }
2118 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
2119 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
2120 break;
2121 case P2P_SERV_BONJOUR:
2122 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
2123 pos, tlv_end - pos);
2124 break;
2125 case P2P_SERV_UPNP:
2126 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
2127 pos, tlv_end - pos);
2128 break;
6ffdc2f7
JM		 2129#ifdef CONFIG_WIFI_DISPLAY
2130 case P2P_SERV_WIFI_DISPLAY:
2131 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
2132 pos, tlv_end - pos);
2133 break;
2134#endif /* CONFIG_WIFI_DISPLAY */
b22128ef
JM		 2135 default:
2136 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
2137 "protocol %u", srv_proto);
2138 wpas_sd_add_proto_not_avail(resp, srv_proto,
2139 srv_trans_id);
2140 break;
2141 }
2142
2143 pos = tlv_end;
2144 }
2145
6e6963ea 2146done:
e1653cac
KRK		 2147 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
2148 update_indic, tlvs, tlvs_len);
2149
b22128ef
JM		 2150 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
2151
2152 wpabuf_free(resp);
2153}
2154
2155
2156void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
2157 const u8 *tlvs, size_t tlvs_len)
2158{
2159 struct wpa_supplicant *wpa_s = ctx;
2160 const u8 *pos = tlvs;
2161 const u8 *end = tlvs + tlvs_len;
2162 const u8 *tlv_end;
2163 u16 slen;
2164 size_t buf_len;
2165 char *buf;
2166
2167 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
2168 tlvs, tlvs_len);
18708aad
JM		 2169 if (tlvs_len > 1500) {
2170 /* TODO: better way for handling this */
2171 wpa_msg_ctrl(wpa_s, MSG_INFO,
2172 P2P_EVENT_SERV_DISC_RESP MACSTR
2173 " %u <long response: %u bytes>",
2174 MAC2STR(sa), update_indic,
2175 (unsigned int) tlvs_len);
2176 } else {
2177 buf_len = 2 * tlvs_len + 1;
2178 buf = os_malloc(buf_len);
2179 if (buf) {
2180 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
2181 wpa_msg_ctrl(wpa_s, MSG_INFO,
2182 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
2183 MAC2STR(sa), update_indic, buf);
2184 os_free(buf);
2185 }
b22128ef
JM		 2186 }
2187
2188 while (pos < end) {
2189 u8 srv_proto, srv_trans_id, status;
2190
2191 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
2192 slen = WPA_GET_LE16(pos);
2193 pos += 2;
2194 if (pos + slen > end || slen < 3) {
2195 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
2196 "length");
2197 return;
2198 }
2199 tlv_end = pos + slen;
2200
2201 srv_proto = *pos++;
2202 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
2203 srv_proto);
2204 srv_trans_id = *pos++;
2205 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
2206 srv_trans_id);
2207 status = *pos++;
2208 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
2209 status);
2210
2211 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
2212 pos, tlv_end - pos);
2213
2214 pos = tlv_end;
2215 }
43a26f60
KRK		 2216
2217 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
b22128ef
JM		 2218}
2219
2220
7165c5dc
JM		 2221u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
2222 const struct wpabuf *tlvs)
b22128ef 2223{
3ac17eba 2224 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
7165c5dc 2225 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
9526fd29 2226 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7165c5dc
JM		 2227 return 0;
2228 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
b22128ef
JM		 2229}
2230
2231
7165c5dc
JM		 2232u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
2233 u8 version, const char *query)
b22128ef
JM		 2234{
2235 struct wpabuf *tlvs;
7165c5dc 2236 u64 ret;
b22128ef
JM		 2237
2238 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
2239 if (tlvs == NULL)
7165c5dc 2240 return 0;
b22128ef
JM		 2241 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
2242 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
2243 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
2244 wpabuf_put_u8(tlvs, version);
2245 wpabuf_put_str(tlvs, query);
2246 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
2247 wpabuf_free(tlvs);
2248 return ret;
2249}
2250
2251
347d6a5b
JM		 2252#ifdef CONFIG_WIFI_DISPLAY
2253
2254static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
2255 const struct wpabuf *tlvs)
2256{
2257 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2258 return 0;
2259 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2260 return 0;
2261 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
2262}
2263
2264
2265#define MAX_WFD_SD_SUBELEMS 20
2266
2267static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
2268 const char *subelems)
2269{
2270 u8 *len;
2271 const char *pos;
2272 int val;
2273 int count = 0;
2274
2275 len = wpabuf_put(tlvs, 2);
2276 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
2277 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
2278
2279 wpabuf_put_u8(tlvs, role);
2280
2281 pos = subelems;
2282 while (*pos) {
2283 val = atoi(pos);
2284 if (val >= 0 && val < 256) {
2285 wpabuf_put_u8(tlvs, val);
2286 count++;
2287 if (count == MAX_WFD_SD_SUBELEMS)
2288 break;
2289 }
2290 pos = os_strchr(pos + 1, ',');
2291 if (pos == NULL)
2292 break;
2293 pos++;
2294 }
2295
2296 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
2297}
2298
2299
2300u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
2301 const u8 *dst, const char *role)
2302{
2303 struct wpabuf *tlvs;
2304 u64 ret;
2305 const char *subelems;
2306 u8 id = 1;
2307
2308 subelems = os_strchr(role, ' ');
2309 if (subelems == NULL)
2310 return 0;
2311 subelems++;
2312
2313 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
2314 if (tlvs == NULL)
2315 return 0;
2316
2317 if (os_strstr(role, "[source]"))
2318 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
2319 if (os_strstr(role, "[pri-sink]"))
2320 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
2321 if (os_strstr(role, "[sec-sink]"))
2322 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
2323 if (os_strstr(role, "[source+sink]"))
2324 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
2325
2326 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
2327 wpabuf_free(tlvs);
2328 return ret;
2329}
2330
2331#endif /* CONFIG_WIFI_DISPLAY */
2332
2333
7165c5dc 2334int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
b22128ef 2335{
3ac17eba 2336 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
7165c5dc 2337 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
9526fd29
JM		 2338 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2339 return -1;
7165c5dc
JM		 2340 return p2p_sd_cancel_request(wpa_s->global->p2p,
2341 (void *) (uintptr_t) req);
b22128ef
JM		 2342}
2343
2344
2345void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
2346 const u8 *dst, u8 dialog_token,
2347 const struct wpabuf *resp_tlvs)
2348{
3ac17eba
JM		 2349 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2350 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
2351 resp_tlvs);
2352 return;
2353 }
9526fd29
JM		 2354 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2355 return;
b22128ef
JM		 2356 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
2357 resp_tlvs);
2358}
2359
2360
2361void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
2362{
3ac17eba
JM		 2363 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2364 wpa_drv_p2p_service_update(wpa_s);
2365 return;
2366 }
9526fd29
JM		 2367 if (wpa_s->global->p2p)
2368 p2p_sd_service_update(wpa_s->global->p2p);
b22128ef
JM		 2369}
2370
2371
2372static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
2373{
2374 dl_list_del(&bsrv->list);
2375 wpabuf_free(bsrv->query);
2376 wpabuf_free(bsrv->resp);
2377 os_free(bsrv);
2378}
2379
2380
2381static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
2382{
2383 dl_list_del(&usrv->list);
2384 os_free(usrv->service);
2385 os_free(usrv);
2386}
2387
2388
2389void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
2390{
2391 struct p2p_srv_bonjour *bsrv, *bn;
2392 struct p2p_srv_upnp *usrv, *un;
2393
2394 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
2395 struct p2p_srv_bonjour, list)
2396 wpas_p2p_srv_bonjour_free(bsrv);
2397
2398 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
2399 struct p2p_srv_upnp, list)
2400 wpas_p2p_srv_upnp_free(usrv);
2401
2402 wpas_p2p_sd_service_update(wpa_s);
2403}
2404
2405
2406int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
2407 struct wpabuf *query, struct wpabuf *resp)
2408{
2409 struct p2p_srv_bonjour *bsrv;
2410
b22128ef
JM		 2411 bsrv = os_zalloc(sizeof(*bsrv));
2412 if (bsrv == NULL)
2413 return -1;
2414 bsrv->query = query;
2415 bsrv->resp = resp;
2416 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
2417
2418 wpas_p2p_sd_service_update(wpa_s);
2419 return 0;
2420}
2421
2422
2423int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
2424 const struct wpabuf *query)
2425{
2426 struct p2p_srv_bonjour *bsrv;
2427
2428 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
2429 if (bsrv == NULL)
2430 return -1;
2431 wpas_p2p_srv_bonjour_free(bsrv);
2432 wpas_p2p_sd_service_update(wpa_s);
2433 return 0;
2434}
2435
2436
2437int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
2438 const char *service)
2439{
2440 struct p2p_srv_upnp *usrv;
2441
2442 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
2443 return 0; /* Already listed */
2444 usrv = os_zalloc(sizeof(*usrv));
2445 if (usrv == NULL)
2446 return -1;
2447 usrv->version = version;
2448 usrv->service = os_strdup(service);
2449 if (usrv->service == NULL) {
2450 os_free(usrv);
2451 return -1;
2452 }
2453 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
2454
2455 wpas_p2p_sd_service_update(wpa_s);
2456 return 0;
2457}
2458
2459
2460int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
2461 const char *service)
2462{
2463 struct p2p_srv_upnp *usrv;
2464
2465 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
2466 if (usrv == NULL)
2467 return -1;
2468 wpas_p2p_srv_upnp_free(usrv);
2469 wpas_p2p_sd_service_update(wpa_s);
2470 return 0;
2471}
2472
2473
2474static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
bbeee9b0
JB		 2475 const u8 *peer, const char *params,
2476 unsigned int generated_pin)
b22128ef 2477{
92c4465b
JM		 2478 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR
2479 " %08d%s", MAC2STR(peer), generated_pin, params);
b22128ef
JM		 2480}
2481
2482
2483static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2484 const u8 *peer, const char *params)
2485{
92c4465b
JM		 2486 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR
2487 "%s", MAC2STR(peer), params);
b22128ef
JM		 2488}
2489
2490
2491void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2492 const u8 *dev_addr, const u8 *pri_dev_type,
2493 const char *dev_name, u16 supp_config_methods,
c3f42784
JM		 2494 u8 dev_capab, u8 group_capab, const u8 *group_id,
2495 size_t group_id_len)
b22128ef
JM		 2496{
2497 struct wpa_supplicant *wpa_s = ctx;
2498 char devtype[WPS_DEV_TYPE_BUFSIZE];
c3f42784 2499 char params[300];
b22128ef 2500 u8 empty_dev_type[8];
bbeee9b0 2501 unsigned int generated_pin = 0;
c3f42784
JM		 2502 struct wpa_supplicant *group = NULL;
2503
2504 if (group_id) {
2505 for (group = wpa_s->global->ifaces; group; group = group->next)
2506 {
2507 struct wpa_ssid *s = group->current_ssid;
2508 if (s != NULL &&
2509 s->mode == WPAS_MODE_P2P_GO &&
2510 group_id_len - ETH_ALEN == s->ssid_len &&
2511 os_memcmp(group_id + ETH_ALEN, s->ssid,
2512 s->ssid_len) == 0)
2513 break;
2514 }
2515 }
b22128ef
JM		 2516
2517 if (pri_dev_type == NULL) {
2518 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2519 pri_dev_type = empty_dev_type;
2520 }
2521 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2522 " pri_dev_type=%s name='%s' config_methods=0x%x "
c3f42784 2523 "dev_capab=0x%x group_capab=0x%x%s%s",
b22128ef
JM		 2524 MAC2STR(dev_addr),
2525 wps_dev_type_bin2str(pri_dev_type, devtype,
2526 sizeof(devtype)),
c3f42784
JM		 2527 dev_name, supp_config_methods, dev_capab, group_capab,
2528 group ? " group=" : "",
2529 group ? group->ifname : "");
b22128ef
JM		 2530 params[sizeof(params) - 1] = '\0';
2531
bbeee9b0
JB		 2532 if (config_methods & WPS_CONFIG_DISPLAY) {
2533 generated_pin = wps_generate_pin();
2534 wpas_prov_disc_local_display(wpa_s, peer, params,
2535 generated_pin);
2536 } else if (config_methods & WPS_CONFIG_KEYPAD)
b22128ef
JM		 2537 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2538 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
92c4465b
JM		 2539 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ
2540 MACSTR "%s", MAC2STR(peer), params);
dd8a7e05
JB		 2541
2542 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2543 P2P_PROV_DISC_SUCCESS,
2544 config_methods, generated_pin);
b22128ef
JM		 2545}
2546
2547
2548void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2549{
2550 struct wpa_supplicant *wpa_s = ctx;
bbeee9b0 2551 unsigned int generated_pin = 0;
0918c4bf 2552 char params[20];
bbeee9b0 2553
c1931635
JM		 2554 if (wpa_s->pending_pd_before_join &&
2555 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2556 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2557 wpa_s->pending_pd_before_join = 0;
2558 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2559 "join-existing-group operation");
2560 wpas_p2p_join_start(wpa_s);
2561 return;
2562 }
2563
0918c4bf
JM		 2564 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2565 wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2566 os_snprintf(params, sizeof(params), " peer_go=%d",
2567 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2568 else
2569 params[0] = '\0';
2570
b22128ef 2571 if (config_methods & WPS_CONFIG_DISPLAY)
0918c4bf 2572 wpas_prov_disc_local_keypad(wpa_s, peer, params);
bbeee9b0
JB		 2573 else if (config_methods & WPS_CONFIG_KEYPAD) {
2574 generated_pin = wps_generate_pin();
0918c4bf
JM		 2575 wpas_prov_disc_local_display(wpa_s, peer, params,
2576 generated_pin);
bbeee9b0 2577 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
92c4465b
JM		 2578 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP
2579 MACSTR "%s", MAC2STR(peer), params);
a482883f 2580
dd8a7e05
JB		 2581 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2582 P2P_PROV_DISC_SUCCESS,
2583 config_methods, generated_pin);
b22128ef
JM		 2584}
2585
2586
19df9b07
JM		 2587static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2588 enum p2p_prov_disc_status status)
dd8a7e05
JB		 2589{
2590 struct wpa_supplicant *wpa_s = ctx;
2591
aa9bb764
JM		 2592 if (wpa_s->p2p_fallback_to_go_neg) {
2593 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2594 "failed - fall back to GO Negotiation");
2595 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2596 return;
2597 }
2598
175171ac
JM		 2599 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2600 wpa_s->pending_pd_before_join = 0;
2601 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2602 "join-existing-group operation (no ACK for PD "
2603 "Req attempts)");
2604 wpas_p2p_join_start(wpa_s);
2605 return;
2606 }
2607
92c4465b
JM		 2608 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2609 " p2p_dev_addr=" MACSTR " status=%d",
2610 MAC2STR(peer), status);
f65a239b 2611
dd8a7e05
JB		 2612 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2613 status, 0, 0);
2614}
2615
2616
72728c6f
SL		 2617static int freq_included(const struct p2p_channels *channels, unsigned int freq)
2618{
2619 if (channels == NULL)
2620 return 1; /* Assume no restrictions */
2621 return p2p_channels_includes_freq(channels, freq);
2622
2623}
2624
2625
b22128ef
JM		 2626static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2627 const u8 *go_dev_addr, const u8 *ssid,
2628 size_t ssid_len, int *go, u8 *group_bssid,
72728c6f
SL		 2629 int *force_freq, int persistent_group,
2630 const struct p2p_channels *channels)
b22128ef
JM		 2631{
2632 struct wpa_supplicant *wpa_s = ctx;
2633 struct wpa_ssid *s;
b22128ef 2634 int res;
ab72eb52 2635 struct wpa_supplicant *grp;
b22128ef
JM		 2636
2637 if (!persistent_group) {
2638 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2639 " to join an active group", MAC2STR(sa));
108def93 2640 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
131cb37c
JM		 2641 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2642 == 0 ||
2643 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
108def93
JM		 2644 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2645 "authorized invitation");
2646 goto accept_inv;
2647 }
b22128ef
JM		 2648 /*
2649 * Do not accept the invitation automatically; notify user and
2650 * request approval.
2651 */
2652 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2653 }
2654
ab72eb52
JM		 2655 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2656 if (grp) {
2657 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2658 "running persistent group");
2659 if (*go)
2660 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2661 goto accept_inv;
2662 }
2663
77e4e853
JM		 2664 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2665 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0) {
2666 wpa_printf(MSG_DEBUG, "P2P: Accept previously initiated "
2667 "invitation to re-invoke a persistent group");
2668 } else if (!wpa_s->conf->persistent_reconnect)
b22128ef
JM		 2669 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2670
2671 for (s = wpa_s->conf->ssid; s; s = s->next) {
2672 if (s->disabled == 2 &&
2673 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2674 s->ssid_len == ssid_len &&
2675 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2676 break;
2677 }
2678
2679 if (!s) {
2680 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2681 " requested reinvocation of an unknown group",
2682 MAC2STR(sa));
2683 return P2P_SC_FAIL_UNKNOWN_GROUP;
2684 }
2685
2686 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2687 *go = 1;
2688 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2689 wpa_printf(MSG_DEBUG, "P2P: The only available "
2690 "interface is already in use - reject "
2691 "invitation");
2692 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2693 }
2694 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2695 } else if (s->mode == WPAS_MODE_P2P_GO) {
2696 *go = 1;
2697 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2698 {
2699 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2700 "interface address for the group");
2701 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2702 }
2703 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2704 ETH_ALEN);
2705 }
2706
108def93 2707accept_inv:
6cb27aa8
JM		 2708 wpas_p2p_set_own_freq_preference(wpa_s, 0);
2709
0d08efa4
IP		 2710 /* Get one of the frequencies currently in use */
2711 if (wpas_p2p_valid_oper_freqs(wpa_s, &res, 1) > 0) {
21e491f2 2712 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer a channel already used by one of the interfaces");
6cb27aa8 2713 wpas_p2p_set_own_freq_preference(wpa_s, res);
21e491f2
JM		 2714
2715 if (wpa_s->num_multichan_concurrent < 2 ||
2716 wpas_p2p_num_unused_channels(wpa_s) < 1) {
2717 wpa_printf(MSG_DEBUG, "P2P: No extra channels available - trying to force channel to match a channel already used by one of the interfaces");
2718 *force_freq = res;
2719 }
b22128ef
JM		 2720 }
2721
0d08efa4
IP		 2722 if (*force_freq > 0 && wpa_s->num_multichan_concurrent > 1 &&
2723 wpas_p2p_num_unused_channels(wpa_s) > 0) {
72728c6f
SL		 2724 if (*go == 0) {
2725 /* We are the client */
2726 wpa_printf(MSG_DEBUG, "P2P: Peer was found to be "
2727 "running a GO but we are capable of MCC, "
2728 "figure out the best channel to use");
2729 *force_freq = 0;
2730 } else if (!freq_included(channels, *force_freq)) {
2731 /* We are the GO, and *force_freq is not in the
2732 * intersection */
2733 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
2734 "in intersection but we are capable of MCC, "
2735 "figure out the best channel to use",
2736 *force_freq);
2737 *force_freq = 0;
2738 }
2739 }
2740
b22128ef
JM		 2741 return P2P_SC_SUCCESS;
2742}
2743
2744
2745static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2746 const u8 *ssid, size_t ssid_len,
2747 const u8 *go_dev_addr, u8 status,
2748 int op_freq)
2749{
2750 struct wpa_supplicant *wpa_s = ctx;
2751 struct wpa_ssid *s;
2752
2753 for (s = wpa_s->conf->ssid; s; s = s->next) {
2754 if (s->disabled == 2 &&
2755 s->ssid_len == ssid_len &&
2756 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2757 break;
2758 }
2759
2760 if (status == P2P_SC_SUCCESS) {
2761 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2762 " was accepted; op_freq=%d MHz",
2763 MAC2STR(sa), op_freq);
2764 if (s) {
2cd07584 2765 int go = s->mode == WPAS_MODE_P2P_GO;
b22128ef 2766 wpas_p2p_group_add_persistent(
20ea1ca4 2767 wpa_s, s, go, go ? op_freq : 0, 0, 0, NULL,
bbc6c729 2768 go ? P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0);
2049af2b 2769 } else if (bssid) {
67527166 2770 wpa_s->user_initiated_pd = 0;
108def93 2771 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
b31be3a0 2772 wpa_s->p2p_wps_method, 0);
b22128ef
JM		 2773 }
2774 return;
2775 }
2776
2777 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2778 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2779 " was rejected (status %u)", MAC2STR(sa), status);
2780 return;
2781 }
2782
2783 if (!s) {
2784 if (bssid) {
92c4465b
JM		 2785 wpa_msg_global(wpa_s, MSG_INFO,
2786 P2P_EVENT_INVITATION_RECEIVED
2787 "sa=" MACSTR " go_dev_addr=" MACSTR
2788 " bssid=" MACSTR " unknown-network",
2789 MAC2STR(sa), MAC2STR(go_dev_addr),
2790 MAC2STR(bssid));
b22128ef 2791 } else {
92c4465b
JM		 2792 wpa_msg_global(wpa_s, MSG_INFO,
2793 P2P_EVENT_INVITATION_RECEIVED
2794 "sa=" MACSTR " go_dev_addr=" MACSTR
2795 " unknown-network",
2796 MAC2STR(sa), MAC2STR(go_dev_addr));
b22128ef
JM		 2797 }
2798 return;
2799 }
2800
cd1e2309 2801 if (s->mode == WPAS_MODE_P2P_GO && op_freq) {
92c4465b
JM		 2802 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2803 "sa=" MACSTR " persistent=%d freq=%d",
2804 MAC2STR(sa), s->id, op_freq);
cd1e2309 2805 } else {
92c4465b
JM		 2806 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2807 "sa=" MACSTR " persistent=%d",
2808 MAC2STR(sa), s->id);
cd1e2309 2809 }
b22128ef
JM		 2810}
2811
2812
dbca75f8
JM		 2813static void wpas_remove_persistent_peer(struct wpa_supplicant *wpa_s,
2814 struct wpa_ssid *ssid,
f2c56602 2815 const u8 *peer, int inv)
dbca75f8
JM		 2816{
2817 size_t i;
2818
2819 if (ssid == NULL)
2820 return;
2821
2822 for (i = 0; ssid->p2p_client_list && i < ssid->num_p2p_clients; i++) {
2823 if (os_memcmp(ssid->p2p_client_list + i * ETH_ALEN, peer,
2824 ETH_ALEN) == 0)
2825 break;
2826 }
2827 if (i >= ssid->num_p2p_clients) {
2828 if (ssid->mode != WPAS_MODE_P2P_GO &&
2829 os_memcmp(ssid->bssid, peer, ETH_ALEN) == 0) {
2830 wpa_printf(MSG_DEBUG, "P2P: Remove persistent group %d "
2831 "due to invitation result", ssid->id);
2832 wpas_notify_network_removed(wpa_s, ssid);
2833 wpa_config_remove_network(wpa_s->conf, ssid->id);
2834 return;
2835 }
2836 return; /* Peer not found in client list */
2837 }
2838
2839 wpa_printf(MSG_DEBUG, "P2P: Remove peer " MACSTR " from persistent "
f2c56602
JM		 2840 "group %d client list%s",
2841 MAC2STR(peer), ssid->id,
2842 inv ? " due to invitation result" : "");
dbca75f8
JM		 2843 os_memmove(ssid->p2p_client_list + i * ETH_ALEN,
2844 ssid->p2p_client_list + (i + 1) * ETH_ALEN,
2845 (ssid->num_p2p_clients - i - 1) * ETH_ALEN);
2846 ssid->num_p2p_clients--;
2847#ifndef CONFIG_NO_CONFIG_WRITE
2848 if (wpa_s->parent->conf->update_config &&
2849 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
2850 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
2851#endif /* CONFIG_NO_CONFIG_WRITE */
2852}
2853
2854
2855static void wpas_remove_persistent_client(struct wpa_supplicant *wpa_s,
2856 const u8 *peer)
2857{
2858 struct wpa_ssid *ssid;
2859
2860 wpa_s = wpa_s->global->p2p_invite_group;
2861 if (wpa_s == NULL)
2862 return; /* No known invitation group */
2863 ssid = wpa_s->current_ssid;
2864 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
2865 !ssid->p2p_persistent_group)
2866 return; /* Not operating as a GO in persistent group */
2867 ssid = wpas_p2p_get_persistent(wpa_s->parent, peer,
2868 ssid->ssid, ssid->ssid_len);
f2c56602 2869 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8
JM		 2870}
2871
2872
54733624 2873static void wpas_invitation_result(void *ctx, int status, const u8 *bssid,
dbca75f8 2874 const struct p2p_channels *channels,
dcd25d4c 2875 const u8 *peer, int neg_freq)
b22128ef
JM		 2876{
2877 struct wpa_supplicant *wpa_s = ctx;
2878 struct wpa_ssid *ssid;
dcd25d4c 2879 int freq;
b22128ef
JM		 2880
2881 if (bssid) {
92c4465b
JM		 2882 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2883 "status=%d " MACSTR,
2884 status, MAC2STR(bssid));
b22128ef 2885 } else {
92c4465b
JM		 2886 wpa_msg_global(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2887 "status=%d ", status);
b22128ef 2888 }
5ccdf84f 2889 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
b22128ef 2890
dbca75f8
JM		 2891 wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
2892 status, MAC2STR(peer));
2893 if (wpa_s->pending_invite_ssid_id == -1) {
2894 if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
2895 wpas_remove_persistent_client(wpa_s, peer);
706887fc 2896 return; /* Invitation to active group */
dbca75f8 2897 }
706887fc 2898
77e4e853
JM		 2899 if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2900 wpa_printf(MSG_DEBUG, "P2P: Waiting for peer to start another "
2901 "invitation exchange to indicate readiness for "
2902 "re-invocation");
2903 }
2904
b22128ef 2905 if (status != P2P_SC_SUCCESS) {
dbca75f8
JM		 2906 if (status == P2P_SC_FAIL_UNKNOWN_GROUP) {
2907 ssid = wpa_config_get_network(
2908 wpa_s->conf, wpa_s->pending_invite_ssid_id);
f2c56602 2909 wpas_remove_persistent_peer(wpa_s, ssid, peer, 1);
dbca75f8 2910 }
b22128ef
JM		 2911 wpas_p2p_remove_pending_group_interface(wpa_s);
2912 return;
2913 }
2914
2915 ssid = wpa_config_get_network(wpa_s->conf,
2916 wpa_s->pending_invite_ssid_id);
2917 if (ssid == NULL) {
2918 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2919 "data matching with invitation");
2920 return;
2921 }
2922
13ece96f
JM		 2923 /*
2924 * The peer could have missed our ctrl::ack frame for Invitation
2925 * Response and continue retransmitting the frame. To reduce the
2926 * likelihood of the peer not getting successful TX status for the
2927 * Invitation Response frame, wait a short time here before starting
2928 * the persistent group so that we will remain on the current channel to
2929 * acknowledge any possible retransmission from the peer.
2930 */
2931 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
2932 "starting persistent group");
2933 os_sleep(0, 50000);
2934
dcd25d4c
VKE		 2935 freq = wpa_s->p2p_persistent_go_freq;
2936 if (neg_freq > 0 && ssid->mode == WPAS_MODE_P2P_GO &&
2937 freq_included(channels, neg_freq)) {
2938 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use frequence %d MHz from invitation for GO mode",
2939 neg_freq);
2940 freq = neg_freq;
2941 }
2942
b22128ef 2943 wpas_p2p_group_add_persistent(wpa_s, ssid,
4d32c0c4 2944 ssid->mode == WPAS_MODE_P2P_GO,
dcd25d4c 2945 freq,
20ea1ca4
EP		 2946 wpa_s->p2p_go_ht40, wpa_s->p2p_go_vht,
2947 channels,
bbc6c729
JM		 2948 ssid->mode == WPAS_MODE_P2P_GO ?
2949 P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
2950 0);
b22128ef
JM		 2951}
2952
2953
6f3bc72b
JM		 2954static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2955 unsigned int freq)
2956{
af8a827b 2957 return freq_range_list_includes(&global->p2p_disallow_freq, freq);
6f3bc72b
JM		 2958}
2959
2960
2961static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
2962{
2963 reg->channel[reg->channels] = chan;
2964 reg->channels++;
2965}
2966
2967
ac8d1011 2968static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 2969 struct p2p_channels *chan,
2970 struct p2p_channels *cli_chan)
ac8d1011
JM		 2971{
2972 int i, cla = 0;
2973
51e9f228
JM		 2974 os_memset(cli_chan, 0, sizeof(*cli_chan));
2975
ac8d1011
JM		 2976 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2977 "band");
2978
2979 /* Operating class 81 - 2.4 GHz band channels 1..13 */
2980 chan->reg_class[cla].reg_class = 81;
6f3bc72b
JM		 2981 chan->reg_class[cla].channels = 0;
2982 for (i = 0; i < 11; i++) {
2983 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
2984 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
2985 }
2986 if (chan->reg_class[cla].channels)
2987 cla++;
ac8d1011
JM		 2988
2989 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2990 "band");
2991
2992 /* Operating class 115 - 5 GHz, channels 36-48 */
2993 chan->reg_class[cla].reg_class = 115;
6f3bc72b
JM		 2994 chan->reg_class[cla].channels = 0;
2995 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
2996 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
2997 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
2998 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
2999 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
3000 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
3001 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
3002 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
3003 if (chan->reg_class[cla].channels)
3004 cla++;
ac8d1011
JM		 3005
3006 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
3007 "band");
3008
3009 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
3010 chan->reg_class[cla].reg_class = 124;
6f3bc72b
JM		 3011 chan->reg_class[cla].channels = 0;
3012 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
3013 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
3014 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
3015 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
3016 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
3017 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
3018 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
3019 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
3020 if (chan->reg_class[cla].channels)
3021 cla++;
ac8d1011
JM		 3022
3023 chan->reg_classes = cla;
3024 return 0;
3025}
3026
3027
3028static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
3029 u16 num_modes,
3030 enum hostapd_hw_mode mode)
3031{
3032 u16 i;
3033
3034 for (i = 0; i < num_modes; i++) {
3035 if (modes[i].mode == mode)
3036 return &modes[i];
3037 }
3038
3039 return NULL;
3040}
3041
3042
51e9f228
JM		 3043enum chan_allowed {
3044 NOT_ALLOWED, PASSIVE_ONLY, ALLOWED
3045};
3046
6f3bc72b
JM		 3047static int has_channel(struct wpa_global *global,
3048 struct hostapd_hw_modes *mode, u8 chan, int *flags)
ac8d1011
JM		 3049{
3050 int i;
6f3bc72b
JM		 3051 unsigned int freq;
3052
3053 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
3054 chan * 5;
3055 if (wpas_p2p_disallowed_freq(global, freq))
51e9f228 3056 return NOT_ALLOWED;
ac8d1011
JM		 3057
3058 for (i = 0; i < mode->num_channels; i++) {
3059 if (mode->channels[i].chan == chan) {
51222429
JM		 3060 if (flags)
3061 *flags = mode->channels[i].flag;
51e9f228
JM		 3062 if (mode->channels[i].flag &
3063 (HOSTAPD_CHAN_DISABLED |
3064 HOSTAPD_CHAN_RADAR))
3065 return NOT_ALLOWED;
3066 if (mode->channels[i].flag &
3067 (HOSTAPD_CHAN_PASSIVE_SCAN |
3068 HOSTAPD_CHAN_NO_IBSS))
3069 return PASSIVE_ONLY;
3070 return ALLOWED;
ac8d1011
JM		 3071 }
3072 }
3073
51e9f228 3074 return NOT_ALLOWED;
ac8d1011
JM		 3075}
3076
3077
3078struct p2p_oper_class_map {
3079 enum hostapd_hw_mode mode;
3080 u8 op_class;
3081 u8 min_chan;
3082 u8 max_chan;
3083 u8 inc;
ca9bc5b5 3084 enum { BW20, BW40PLUS, BW40MINUS, BW80 } bw;
ac8d1011
JM		 3085};
3086
931228aa
RM		 3087static struct p2p_oper_class_map op_class[] = {
3088 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
931228aa
RM		 3089#if 0 /* Do not enable HT40 on 2 GHz for now */
3090 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
3091 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
3092#endif
3093 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
3094 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
3095 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
3096 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
3097 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
3098 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
ca9bc5b5
EP		 3099
3100 /*
3101 * IEEE P802.11ac/D7.0 Table E-4 actually talks about channel center
3102 * frequency index 42, 58, 106, 122, 138, 155 with channel spacing of
3103 * 80 MHz, but currently use the following definition for simplicity
3104 * (these center frequencies are not actual channels, which makes
3105 * has_channel() fail). wpas_p2p_verify_80mhz() should take care of
3106 * removing invalid channels.
3107 */
3108 { HOSTAPD_MODE_IEEE80211A, 128, 36, 161, 4, BW80 },
931228aa
RM		 3109 { -1, 0, 0, 0, 0, BW20 }
3110};
3111
3112
ca9bc5b5
EP		 3113static int wpas_p2p_get_center_80mhz(struct wpa_supplicant *wpa_s,
3114 struct hostapd_hw_modes *mode,
3115 u8 channel)
3116{
3117 u8 center_channels[] = { 42, 58, 106, 122, 138, 155 };
3118 unsigned int i;
3119
3120 if (mode->mode != HOSTAPD_MODE_IEEE80211A)
3121 return 0;
3122
3123 for (i = 0; i < ARRAY_SIZE(center_channels); i++)
3124 /*
3125 * In 80 MHz, the bandwidth "spans" 12 channels (e.g., 36-48),
3126 * so the center channel is 6 channels away from the start/end.
3127 */
3128 if (channel >= center_channels[i] - 6 &&
3129 channel <= center_channels[i] + 6)
3130 return center_channels[i];
3131
3132 return 0;
3133}
3134
3135
3136static enum chan_allowed wpas_p2p_verify_80mhz(struct wpa_supplicant *wpa_s,
3137 struct hostapd_hw_modes *mode,
3138 u8 channel, u8 bw)
3139{
3140 u8 center_chan;
3141 int i, flags;
3142 enum chan_allowed res, ret = ALLOWED;
3143
3144 center_chan = wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3145 if (!center_chan)
3146 return NOT_ALLOWED;
3147 if (center_chan >= 58 && center_chan <= 138)
3148 return NOT_ALLOWED; /* Do not allow DFS channels for P2P */
3149
3150 /* check all the channels are available */
3151 for (i = 0; i < 4; i++) {
3152 int adj_chan = center_chan - 6 + i * 4;
3153
3154 res = has_channel(wpa_s->global, mode, adj_chan, &flags);
3155 if (res == NOT_ALLOWED)
3156 return NOT_ALLOWED;
3157 if (res == PASSIVE_ONLY)
3158 ret = PASSIVE_ONLY;
3159
3160 if (i == 0 && !(flags & HOSTAPD_CHAN_VHT_10_70))
3161 return NOT_ALLOWED;
3162 if (i == 1 && !(flags & HOSTAPD_CHAN_VHT_30_50))
3163 return NOT_ALLOWED;
3164 if (i == 2 && !(flags & HOSTAPD_CHAN_VHT_50_30))
3165 return NOT_ALLOWED;
3166 if (i == 3 && !(flags & HOSTAPD_CHAN_VHT_70_10))
3167 return NOT_ALLOWED;
3168 }
3169
3170 return ret;
3171}
3172
3173
51e9f228
JM		 3174static enum chan_allowed wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
3175 struct hostapd_hw_modes *mode,
3176 u8 channel, u8 bw)
931228aa
RM		 3177{
3178 int flag;
51e9f228
JM		 3179 enum chan_allowed res, res2;
3180
3181 res2 = res = has_channel(wpa_s->global, mode, channel, &flag);
3182 if (bw == BW40MINUS) {
3183 if (!(flag & HOSTAPD_CHAN_HT40MINUS))
3184 return NOT_ALLOWED;
3185 res2 = has_channel(wpa_s->global, mode, channel - 4, NULL);
3186 } else if (bw == BW40PLUS) {
3187 if (!(flag & HOSTAPD_CHAN_HT40PLUS))
3188 return NOT_ALLOWED;
3189 res2 = has_channel(wpa_s->global, mode, channel + 4, NULL);
ca9bc5b5
EP		 3190 } else if (bw == BW80) {
3191 res2 = wpas_p2p_verify_80mhz(wpa_s, mode, channel, bw);
51e9f228
JM		 3192 }
3193
3194 if (res == NOT_ALLOWED || res2 == NOT_ALLOWED)
3195 return NOT_ALLOWED;
3196 if (res == PASSIVE_ONLY || res2 == PASSIVE_ONLY)
3197 return PASSIVE_ONLY;
3198 return res;
931228aa
RM		 3199}
3200
3201
b22128ef 3202static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
51e9f228
JM		 3203 struct p2p_channels *chan,
3204 struct p2p_channels *cli_chan)
b22128ef 3205{
6bf731e8 3206 struct hostapd_hw_modes *mode;
51e9f228 3207 int cla, op, cli_cla;
b22128ef 3208
6bf731e8 3209 if (wpa_s->hw.modes == NULL) {
b22128ef
JM		 3210 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
3211 "of all supported channels; assume dualband "
3212 "support");
51e9f228 3213 return wpas_p2p_default_channels(wpa_s, chan, cli_chan);
b22128ef
JM		 3214 }
3215
51e9f228 3216 cla = cli_cla = 0;
b22128ef 3217
ac8d1011
JM		 3218 for (op = 0; op_class[op].op_class; op++) {
3219 struct p2p_oper_class_map *o = &op_class[op];
3220 u8 ch;
51e9f228 3221 struct p2p_reg_class *reg = NULL, *cli_reg = NULL;
b22128ef 3222
6bf731e8 3223 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
ac8d1011
JM		 3224 if (mode == NULL)
3225 continue;
3226 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
51e9f228
JM		 3227 enum chan_allowed res;
3228 res = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
3229 if (res == ALLOWED) {
3230 if (reg == NULL) {
3231 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u",
3232 o->op_class);
3233 reg = &chan->reg_class[cla];
3234 cla++;
3235 reg->reg_class = o->op_class;
3236 }
3237 reg->channel[reg->channels] = ch;
3238 reg->channels++;
3239 } else if (res == PASSIVE_ONLY &&
3240 wpa_s->conf->p2p_add_cli_chan) {
3241 if (cli_reg == NULL) {
3242 wpa_printf(MSG_DEBUG, "P2P: Add operating class %u (client only)",
3243 o->op_class);
3244 cli_reg = &cli_chan->reg_class[cli_cla];
3245 cli_cla++;
3246 cli_reg->reg_class = o->op_class;
3247 }
3248 cli_reg->channel[cli_reg->channels] = ch;
3249 cli_reg->channels++;
ac8d1011 3250 }
ac8d1011
JM		 3251 }
3252 if (reg) {
3253 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
3254 reg->channel, reg->channels);
3255 }
51e9f228
JM		 3256 if (cli_reg) {
3257 wpa_hexdump(MSG_DEBUG, "P2P: Channels (client only)",
3258 cli_reg->channel, cli_reg->channels);
3259 }
b22128ef
JM		 3260 }
3261
ac8d1011 3262 chan->reg_classes = cla;
51e9f228 3263 cli_chan->reg_classes = cli_cla;
b22128ef 3264
b22128ef
JM		 3265 return 0;
3266}
3267
3268
7aeac985
RM		 3269int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
3270 struct hostapd_hw_modes *mode, u8 channel)
3271{
51e9f228
JM		 3272 int op;
3273 enum chan_allowed ret;
7aeac985
RM		 3274
3275 for (op = 0; op_class[op].op_class; op++) {
3276 struct p2p_oper_class_map *o = &op_class[op];
3277 u8 ch;
3278
3279 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
3280 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
3281 o->bw == BW20 || ch != channel)
3282 continue;
3283 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
51e9f228 3284 if (ret == ALLOWED)
7aeac985 3285 return (o->bw == BW40MINUS) ? -1 : 1;
7aeac985
RM		 3286 }
3287 }
3288 return 0;
3289}
3290
3291
ca9bc5b5
EP		 3292int wpas_p2p_get_vht80_center(struct wpa_supplicant *wpa_s,
3293 struct hostapd_hw_modes *mode, u8 channel)
3294{
3295 if (!wpas_p2p_verify_channel(wpa_s, mode, channel, BW80))
3296 return 0;
3297
3298 return wpas_p2p_get_center_80mhz(wpa_s, mode, channel);
3299}
3300
3301
b22128ef
JM		 3302static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
3303 size_t buf_len)
3304{
3305 struct wpa_supplicant *wpa_s = ctx;
3306
3307 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3308 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
3309 break;
3310 }
3311 if (wpa_s == NULL)
3312 return -1;
3313
3314 return wpa_drv_get_noa(wpa_s, buf, buf_len);
3315}
3316
3317
b1aebbc4
JM		 3318static int wpas_go_connected(void *ctx, const u8 *dev_addr)
3319{
3320 struct wpa_supplicant *wpa_s = ctx;
3321
3322 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3323 struct wpa_ssid *ssid = wpa_s->current_ssid;
3324 if (ssid == NULL)
3325 continue;
3326 if (ssid->mode != WPAS_MODE_INFRA)
3327 continue;
d9a0f666
PN		 3328 if (wpa_s->wpa_state != WPA_COMPLETED &&
3329 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
b1aebbc4
JM		 3330 continue;
3331 if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
3332 return 1;
3333 }
3334
3335 return 0;
3336}
3337
3338
ed496f13
JM		 3339static void wpas_p2p_debug_print(void *ctx, int level, const char *msg)
3340{
3341 struct wpa_supplicant *wpa_s = ctx;
92c4465b 3342 wpa_msg_global(wpa_s, level, "P2P: %s", msg);
ed496f13
JM		 3343}
3344
3345
c68f6200
AS		 3346int wpas_p2p_add_p2pdev_interface(struct wpa_supplicant *wpa_s)
3347{
3348 struct wpa_interface iface;
3349 struct wpa_supplicant *p2pdev_wpa_s;
3350 char ifname[100];
3351 char force_name[100];
3352 int ret;
3353
2e5ba4b6
AS		 3354 os_snprintf(ifname, sizeof(ifname), P2P_MGMT_DEVICE_PREFIX "%s",
3355 wpa_s->ifname);
c68f6200
AS		 3356 force_name[0] = '\0';
3357 wpa_s->pending_interface_type = WPA_IF_P2P_DEVICE;
3358 ret = wpa_drv_if_add(wpa_s, WPA_IF_P2P_DEVICE, ifname, NULL, NULL,
3359 force_name, wpa_s->pending_interface_addr, NULL);
3360 if (ret < 0) {
3361 wpa_printf(MSG_DEBUG, "P2P: Failed to create P2P Device interface");
3362 return ret;
3363 }
3364 os_strlcpy(wpa_s->pending_interface_name, ifname,
3365 sizeof(wpa_s->pending_interface_name));
3366
3367 os_memset(&iface, 0, sizeof(iface));
3368 iface.p2p_mgmt = 1;
3369 iface.ifname = wpa_s->pending_interface_name;
3370 iface.driver = wpa_s->driver->name;
c68f6200
AS		 3371 iface.driver_param = wpa_s->conf->driver_param;
3372 iface.confname = wpa_s->confname;
3373 p2pdev_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
3374 if (!p2pdev_wpa_s) {
3375 wpa_printf(MSG_DEBUG, "P2P: Failed to add P2P Device interface");
3376 return -1;
3377 }
78f79fe5 3378 p2pdev_wpa_s->parent = wpa_s;
c68f6200
AS		 3379
3380 wpa_s->pending_interface_name[0] = '\0';
3381 return 0;
3382}
3383
3384
b22128ef
JM		 3385/**
3386 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
3387 * @global: Pointer to global data from wpa_supplicant_init()
3388 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3389 * Returns: 0 on success, -1 on failure
3390 */
3391int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
3392{
3393 struct p2p_config p2p;
3394 unsigned int r;
f95cac27 3395 int i;
b22128ef 3396
f2b3f4de
SS		 3397 if (wpa_s->conf->p2p_disabled)
3398 return 0;
3399
b22128ef
JM		 3400 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3401 return 0;
3402
b22128ef
JM		 3403 if (global->p2p)
3404 return 0;
3405
3ac17eba
JM		 3406 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3407 struct p2p_params params;
3408
3409 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
3410 os_memset(&params, 0, sizeof(params));
3411 params.dev_name = wpa_s->conf->device_name;
2f646b6e
JB		 3412 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
3413 WPS_DEV_TYPE_LEN);
3414 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
3415 os_memcpy(params.sec_dev_type,
3416 wpa_s->conf->sec_device_type,
3417 params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
3418
3ac17eba
JM		 3419 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
3420 return -1;
3421
3422 return 0;
3423 }
3424
b22128ef 3425 os_memset(&p2p, 0, sizeof(p2p));
b22128ef 3426 p2p.cb_ctx = wpa_s;
ed496f13 3427 p2p.debug_print = wpas_p2p_debug_print;
b22128ef
JM		 3428 p2p.p2p_scan = wpas_p2p_scan;
3429 p2p.send_action = wpas_send_action;
3430 p2p.send_action_done = wpas_send_action_done;
3431 p2p.go_neg_completed = wpas_go_neg_completed;
3432 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
3433 p2p.dev_found = wpas_dev_found;
56eeb8f2 3434 p2p.dev_lost = wpas_dev_lost;
710ae9ac 3435 p2p.find_stopped = wpas_find_stopped;
b22128ef
JM		 3436 p2p.start_listen = wpas_start_listen;
3437 p2p.stop_listen = wpas_stop_listen;
3438 p2p.send_probe_resp = wpas_send_probe_resp;
3439 p2p.sd_request = wpas_sd_request;
3440 p2p.sd_response = wpas_sd_response;
3441 p2p.prov_disc_req = wpas_prov_disc_req;
3442 p2p.prov_disc_resp = wpas_prov_disc_resp;
dd8a7e05 3443 p2p.prov_disc_fail = wpas_prov_disc_fail;
b22128ef
JM		 3444 p2p.invitation_process = wpas_invitation_process;
3445 p2p.invitation_received = wpas_invitation_received;
3446 p2p.invitation_result = wpas_invitation_result;
3447 p2p.get_noa = wpas_get_noa;
b1aebbc4 3448 p2p.go_connected = wpas_go_connected;
b22128ef
JM		 3449
3450 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
d7e70476 3451 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
b22128ef 3452 p2p.dev_name = wpa_s->conf->device_name;
b6e01800
JM		 3453 p2p.manufacturer = wpa_s->conf->manufacturer;
3454 p2p.model_name = wpa_s->conf->model_name;
3455 p2p.model_number = wpa_s->conf->model_number;
3456 p2p.serial_number = wpa_s->conf->serial_number;
3457 if (wpa_s->wps) {
3458 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
3459 p2p.config_methods = wpa_s->wps->config_methods;
3460 }
b22128ef
JM		 3461
3462 if (wpa_s->conf->p2p_listen_reg_class &&
3463 wpa_s->conf->p2p_listen_channel) {
3464 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
3465 p2p.channel = wpa_s->conf->p2p_listen_channel;
3466 } else {
3467 p2p.reg_class = 81;
3468 /*
3469 * Pick one of the social channels randomly as the listen
3470 * channel.
3471 */
3472 os_get_random((u8 *) &r, sizeof(r));
3473 p2p.channel = 1 + (r % 3) * 5;
3474 }
7cfc4ac3 3475 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
b22128ef
JM		 3476
3477 if (wpa_s->conf->p2p_oper_reg_class &&
3478 wpa_s->conf->p2p_oper_channel) {
3479 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
3480 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 3481 p2p.cfg_op_channel = 1;
3482 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
3483 "%d:%d", p2p.op_reg_class, p2p.op_channel);
3484
b22128ef
JM		 3485 } else {
3486 p2p.op_reg_class = 81;
3487 /*
7cfc4ac3
AGS		 3488 * Use random operation channel from (1, 6, 11) if no other
3489 * preference is indicated.
b22128ef 3490 */
b7412dab 3491 os_get_random((u8 *) &r, sizeof(r));
7cfc4ac3
AGS		 3492 p2p.op_channel = 1 + (r % 3) * 5;
3493 p2p.cfg_op_channel = 0;
3494 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
3495 "%d:%d", p2p.op_reg_class, p2p.op_channel);
b22128ef 3496 }
010b5f9b
YW		 3497
3498 if (wpa_s->conf->p2p_pref_chan && wpa_s->conf->num_p2p_pref_chan) {
3499 p2p.pref_chan = wpa_s->conf->p2p_pref_chan;
3500 p2p.num_pref_chan = wpa_s->conf->num_p2p_pref_chan;
3501 }
3502
b22128ef
JM		 3503 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3504 os_memcpy(p2p.country, wpa_s->conf->country, 2);
3505 p2p.country[2] = 0x04;
3506 } else
aaca6505 3507 os_memcpy(p2p.country, "XX\x04", 3);
b22128ef 3508
51e9f228 3509 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels, &p2p.cli_channels)) {
b22128ef
JM		 3510 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
3511 "channel list");
3512 return -1;
3513 }
3514
2f646b6e
JB		 3515 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
3516 WPS_DEV_TYPE_LEN);
b22128ef 3517
2f646b6e
JB		 3518 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
3519 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
3520 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
b22128ef
JM		 3521
3522 p2p.concurrent_operations = !!(wpa_s->drv_flags &
3523 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
3524
de979d8f 3525 p2p.max_peers = 100;
b22128ef
JM		 3526
3527 if (wpa_s->conf->p2p_ssid_postfix) {
3528 p2p.ssid_postfix_len =
3529 os_strlen(wpa_s->conf->p2p_ssid_postfix);
3530 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
3531 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
3532 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
3533 p2p.ssid_postfix_len);
3534 }
3535
0f66abd2
SS		 3536 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
3537
96beff11
JM		 3538 p2p.max_listen = wpa_s->max_remain_on_chan;
3539
b22128ef
JM		 3540 global->p2p = p2p_init(&p2p);
3541 if (global->p2p == NULL)
3542 return -1;
ab28911d 3543 global->p2p_init_wpa_s = wpa_s;
b22128ef 3544
f95cac27
JMB		 3545 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
3546 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
3547 continue;
3548 p2p_add_wps_vendor_extension(
3549 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
3550 }
3551
556b30da
JM		 3552 p2p_set_no_go_freq(global->p2p, &wpa_s->conf->p2p_no_go_freq);
3553
b22128ef
JM		 3554 return 0;
3555}
3556
3557
3558/**
3559 * wpas_p2p_deinit - Deinitialize per-interface P2P data
3560 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3561 *
3562 * This function deinitialize per-interface P2P data.
3563 */
3564void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
3565{
3566 if (wpa_s->driver && wpa_s->drv_priv)
3567 wpa_drv_probe_req_report(wpa_s, 0);
ec437d9e
JJ		 3568
3569 if (wpa_s->go_params) {
3570 /* Clear any stored provisioning info */
3571 p2p_clear_provisioning_info(
3572 wpa_s->global->p2p,
10531d21 3573 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 3574 }
3575
b22128ef
JM		 3576 os_free(wpa_s->go_params);
3577 wpa_s->go_params = NULL;
b22128ef 3578 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 3579 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 3580 wpa_s->p2p_long_listen = 0;
3581 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3071e181 3582 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
b22128ef 3583 wpas_p2p_remove_pending_group_interface(wpa_s);
8567866d 3584 eloop_cancel_timeout(wpas_p2p_group_freq_conflict, wpa_s, NULL);
b22128ef
JM		 3585
3586 /* TODO: remove group interface from the driver if this wpa_s instance
3587 * is on top of a P2P group interface */
3588}
3589
3590
3591/**
3592 * wpas_p2p_deinit_global - Deinitialize global P2P module
3593 * @global: Pointer to global data from wpa_supplicant_init()
3594 *
3595 * This function deinitializes the global (per device) P2P module.
3596 */
3597void wpas_p2p_deinit_global(struct wpa_global *global)
3598{
3599 struct wpa_supplicant *wpa_s, *tmp;
b22128ef 3600
bf428a73
JM		 3601 wpa_s = global->ifaces;
3602 if (wpa_s)
3603 wpas_p2p_service_flush(wpa_s);
3604
b22128ef
JM		 3605 if (global->p2p == NULL)
3606 return;
3607
3608 /* Remove remaining P2P group interfaces */
b22128ef
JM		 3609 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
3610 wpa_s = wpa_s->next;
3611 while (wpa_s) {
b22128ef
JM		 3612 tmp = global->ifaces;
3613 while (tmp &&
3614 (tmp == wpa_s ||
3615 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
3616 tmp = tmp->next;
3617 }
3618 if (tmp == NULL)
3619 break;
103b8f4d
NS		 3620 /* Disconnect from the P2P group and deinit the interface */
3621 wpas_p2p_disconnect(tmp);
b22128ef
JM		 3622 }
3623
743ef799
JM		 3624 /*
3625 * Deinit GO data on any possibly remaining interface (if main
3626 * interface is used as GO).
3627 */
3628 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3629 if (wpa_s->ap_iface)
3630 wpas_p2p_group_deinit(wpa_s);
3631 }
3632
b22128ef
JM		 3633 p2p_deinit(global->p2p);
3634 global->p2p = NULL;
ab28911d 3635 global->p2p_init_wpa_s = NULL;
b22128ef
JM		 3636}
3637
3638
3639static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
3640{
bb4028f1
AS		 3641 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
3642 wpa_s->conf->p2p_no_group_iface)
d76cd41a 3643 return 0; /* separate interface disabled per configuration */
971e357f
JM		 3644 if (wpa_s->drv_flags &
3645 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
3646 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
b22128ef
JM		 3647 return 1; /* P2P group requires a new interface in every case
3648 */
3649 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
3650 return 0; /* driver does not support concurrent operations */
3651 if (wpa_s->global->ifaces->next)
3652 return 1; /* more that one interface already in use */
3653 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
3654 return 1; /* this interface is already in use */
3655 return 0;
3656}
3657
3658
3659static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
3660 const u8 *peer_addr,
3661 enum p2p_wps_method wps_method,
3662 int go_intent, const u8 *own_interface_addr,
23c84252 3663 unsigned int force_freq, int persistent_group,
04a3e69d 3664 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 3665{
acc247b2
JM		 3666 if (persistent_group && wpa_s->conf->persistent_reconnect)
3667 persistent_group = 2;
3668
3ac17eba
JM		 3669 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3670 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
3671 go_intent, own_interface_addr,
3672 force_freq, persistent_group);
3673 }
3674
4f219667
JM		 3675 /*
3676 * Increase GO config timeout if HT40 is used since it takes some time
3677 * to scan channels for coex purposes before the BSS can be started.
3678 */
3679 p2p_set_config_timeout(wpa_s->global->p2p,
3680 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
3681
b22128ef
JM		 3682 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
3683 go_intent, own_interface_addr, force_freq,
23c84252 3684 persistent_group, ssid ? ssid->ssid : NULL,
3bc462cb 3685 ssid ? ssid->ssid_len : 0,
04a3e69d 3686 wpa_s->p2p_pd_before_go_neg, pref_freq);
b22128ef
JM		 3687}
3688
3689
3690static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
3691 const u8 *peer_addr,
3692 enum p2p_wps_method wps_method,
3693 int go_intent, const u8 *own_interface_addr,
23c84252 3694 unsigned int force_freq, int persistent_group,
04a3e69d 3695 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 3696{
acc247b2
JM		 3697 if (persistent_group && wpa_s->conf->persistent_reconnect)
3698 persistent_group = 2;
3699
3ac17eba
JM		 3700 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3701 return -1;
3702
b22128ef
JM		 3703 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
3704 go_intent, own_interface_addr, force_freq,
23c84252 3705 persistent_group, ssid ? ssid->ssid : NULL,
04a3e69d 3706 ssid ? ssid->ssid_len : 0, pref_freq);
b22128ef
JM		 3707}
3708
3709
9b1ab931
JM		 3710static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
3711{
3712 wpa_s->p2p_join_scan_count++;
3713 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
3714 wpa_s->p2p_join_scan_count);
3715 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
3716 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
3717 " for join operationg - stop join attempt",
3718 MAC2STR(wpa_s->pending_join_iface_addr));
3719 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
0918c4bf
JM		 3720 if (wpa_s->p2p_auto_pd) {
3721 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 3722 wpa_msg_global(wpa_s, MSG_INFO,
3723 P2P_EVENT_PROV_DISC_FAILURE
3724 " p2p_dev_addr=" MACSTR " status=N/A",
3725 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 3726 return;
3727 }
92c4465b
JM		 3728 wpa_msg_global(wpa_s->parent, MSG_INFO,
3729 P2P_EVENT_GROUP_FORMATION_FAILURE);
9b1ab931
JM		 3730 }
3731}
3732
3733
4b156206
JM		 3734static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
3735{
0d08efa4 3736 int *freqs, res, num, i;
4b156206 3737
0d08efa4
IP		 3738 if (wpas_p2p_num_unused_channels(wpa_s) > 0) {
3739 /* Multiple channels are supported and not all are in use */
4b156206 3740 return 0;
0d08efa4 3741 }
4b156206 3742
0d08efa4
IP		 3743 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
3744 if (!freqs)
3745 return 1;
86ae2e8a 3746
0d08efa4
IP		 3747 num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
3748 wpa_s->num_multichan_concurrent);
3749 if (num < 0) {
3750 res = 1;
3751 goto exit_free;
4b156206
JM		 3752 }
3753
0d08efa4
IP		 3754 for (i = 0; i < num; i++) {
3755 if (freqs[i] == freq) {
3756 wpa_printf(MSG_DEBUG, "P2P: Frequency %d MHz in use by another virtual interface and can be used",
3757 freq);
3758 res = 0;
3759 goto exit_free;
3760 }
4b156206
JM		 3761 }
3762
0d08efa4
IP		 3763 res = 1;
3764
3765exit_free:
3766 os_free(freqs);
3767 return res;
4b156206
JM		 3768}
3769
3770
b31be3a0
JM		 3771static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
3772 const u8 *peer_dev_addr)
3773{
3774 struct wpa_bss *bss;
3775 int updated;
3776
3777 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
3778 if (bss == NULL)
aa9bb764 3779 return -1;
b31be3a0
JM		 3780 if (bss->last_update_idx < wpa_s->bss_update_idx) {
3781 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
3782 "last scan");
3783 return 0;
3784 }
3785
acb69cec
JB		 3786 updated = os_reltime_before(&wpa_s->p2p_auto_started,
3787 &bss->last_update);
b31be3a0
JM		 3788 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
3789 "%ld.%06ld (%supdated in last scan)",
3790 bss->last_update.sec, bss->last_update.usec,
3791 updated ? "": "not ");
3792
3793 return updated;
3794}
3795
3796
ef922c4a
JM		 3797static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
3798 struct wpa_scan_results *scan_res)
b22128ef
JM		 3799{
3800 struct wpa_bss *bss;
f8d0131a 3801 int freq;
54960629 3802 u8 iface_addr[ETH_ALEN];
b22128ef 3803
ef922c4a 3804 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 3805
ef922c4a
JM		 3806 if (wpa_s->global->p2p_disabled)
3807 return;
b22128ef 3808
b31be3a0
JM		 3809 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
3810 scan_res ? (int) scan_res->num : -1,
3811 wpa_s->p2p_auto_join ? "auto_" : "");
ef922c4a
JM		 3812
3813 if (scan_res)
3814 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 3815
0918c4bf
JM		 3816 if (wpa_s->p2p_auto_pd) {
3817 int join = wpas_p2p_peer_go(wpa_s,
3818 wpa_s->pending_join_dev_addr);
84286a22
SDU		 3819 if (join == 0 &&
3820 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
3821 wpa_s->auto_pd_scan_retry++;
702621e6
JM		 3822 bss = wpa_bss_get_bssid_latest(
3823 wpa_s, wpa_s->pending_join_dev_addr);
84286a22
SDU		 3824 if (bss) {
3825 freq = bss->freq;
3826 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
3827 "the peer " MACSTR " at %d MHz",
3828 wpa_s->auto_pd_scan_retry,
3829 MAC2STR(wpa_s->
3830 pending_join_dev_addr),
3831 freq);
3832 wpas_p2p_join_scan_req(wpa_s, freq);
3833 return;
3834 }
3835 }
3836
aa9bb764
JM		 3837 if (join < 0)
3838 join = 0;
84286a22 3839
0918c4bf
JM		 3840 wpa_s->p2p_auto_pd = 0;
3841 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
3842 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
3843 MAC2STR(wpa_s->pending_join_dev_addr), join);
3844 if (p2p_prov_disc_req(wpa_s->global->p2p,
3845 wpa_s->pending_join_dev_addr,
3846 wpa_s->pending_pd_config_methods, join,
67527166 3847 0, wpa_s->user_initiated_pd) < 0) {
0918c4bf 3848 wpa_s->p2p_auto_pd = 0;
92c4465b
JM		 3849 wpa_msg_global(wpa_s, MSG_INFO,
3850 P2P_EVENT_PROV_DISC_FAILURE
3851 " p2p_dev_addr=" MACSTR " status=N/A",
3852 MAC2STR(wpa_s->pending_join_dev_addr));
0918c4bf
JM		 3853 }
3854 return;
3855 }
3856
b31be3a0 3857 if (wpa_s->p2p_auto_join) {
aa9bb764
JM		 3858 int join = wpas_p2p_peer_go(wpa_s,
3859 wpa_s->pending_join_dev_addr);
3860 if (join < 0) {
b31be3a0
JM		 3861 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
3862 "running a GO -> use GO Negotiation");
3863 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
3864 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
3865 wpa_s->p2p_persistent_group, 0, 0, 0,
3866 wpa_s->p2p_go_intent,
23c84252 3867 wpa_s->p2p_connect_freq,
3bc462cb 3868 wpa_s->p2p_persistent_id,
e2308e4b 3869 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 3870 wpa_s->p2p_go_ht40,
3871 wpa_s->p2p_go_vht);
b31be3a0
JM		 3872 return;
3873 }
3874
aa9bb764
JM		 3875 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
3876 "try to join the group", join ? "" :
3877 " in older scan");
3878 if (!join)
3879 wpa_s->p2p_fallback_to_go_neg = 1;
b31be3a0
JM		 3880 }
3881
f8d0131a
JM		 3882 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3883 wpa_s->pending_join_iface_addr);
54960629
AL		 3884 if (freq < 0 &&
3885 p2p_get_interface_addr(wpa_s->global->p2p,
3886 wpa_s->pending_join_dev_addr,
3887 iface_addr) == 0 &&
3888 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
3889 {
3890 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
3891 "address for join from " MACSTR " to " MACSTR
3892 " based on newly discovered P2P peer entry",
3893 MAC2STR(wpa_s->pending_join_iface_addr),
3894 MAC2STR(iface_addr));
3895 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
3896 ETH_ALEN);
3897
3898 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3899 wpa_s->pending_join_iface_addr);
3900 }
f8d0131a
JM		 3901 if (freq >= 0) {
3902 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3903 "from P2P peer table: %d MHz", freq);
3904 }
702621e6 3905 bss = wpa_bss_get_bssid_latest(wpa_s, wpa_s->pending_join_iface_addr);
b22128ef 3906 if (bss) {
f8d0131a
JM		 3907 freq = bss->freq;
3908 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
d2858883
JM		 3909 "from BSS table: %d MHz (SSID %s)", freq,
3910 wpa_ssid_txt(bss->ssid, bss->ssid_len));
f8d0131a
JM		 3911 }
3912 if (freq > 0) {
b22128ef
JM		 3913 u16 method;
3914
4b156206 3915 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
92c4465b
JM		 3916 wpa_msg_global(wpa_s->parent, MSG_INFO,
3917 P2P_EVENT_GROUP_FORMATION_FAILURE
3918 "reason=FREQ_CONFLICT");
4b156206
JM		 3919 return;
3920 }
3921
b22128ef
JM		 3922 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
3923 "prior to joining an existing group (GO " MACSTR
3924 " freq=%u MHz)",
f8d0131a 3925 MAC2STR(wpa_s->pending_join_dev_addr), freq);
b22128ef
JM		 3926 wpa_s->pending_pd_before_join = 1;
3927
ef922c4a 3928 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 3929 case WPS_PIN_DISPLAY:
3930 method = WPS_CONFIG_KEYPAD;
3931 break;
3932 case WPS_PIN_KEYPAD:
3933 method = WPS_CONFIG_DISPLAY;
3934 break;
3935 case WPS_PBC:
3936 method = WPS_CONFIG_PUSHBUTTON;
3937 break;
3938 default:
3939 method = 0;
3940 break;
3941 }
3942
ec437d9e
JJ		 3943 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
3944 wpa_s->pending_join_dev_addr) ==
3945 method)) {
3946 /*
3947 * We have already performed provision discovery for
3948 * joining the group. Proceed directly to join
3949 * operation without duplicated provision discovery. */
e3a0706b 3950 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
ec437d9e
JJ		 3951 "with " MACSTR " already done - proceed to "
3952 "join",
3953 MAC2STR(wpa_s->pending_join_dev_addr));
3954 wpa_s->pending_pd_before_join = 0;
3955 goto start;
3956 }
3957
ef922c4a 3958 if (p2p_prov_disc_req(wpa_s->global->p2p,
1ef2f7ff 3959 wpa_s->pending_join_dev_addr, method, 1,
67527166 3960 freq, wpa_s->user_initiated_pd) < 0) {
b22128ef
JM		 3961 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
3962 "Discovery Request before joining an "
3963 "existing group");
3964 wpa_s->pending_pd_before_join = 0;
3965 goto start;
3966 }
ef922c4a 3967 return;
b22128ef
JM		 3968 }
3969
9b1ab931
JM		 3970 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
3971 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3972 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3973 wpas_p2p_check_join_scan_limit(wpa_s);
3974 return;
b22128ef
JM		 3975
3976start:
3977 /* Start join operation immediately */
ef922c4a
JM		 3978 wpas_p2p_join_start(wpa_s);
3979}
3980
3981
84286a22 3982static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq)
ef922c4a 3983{
ef922c4a
JM		 3984 int ret;
3985 struct wpa_driver_scan_params params;
3986 struct wpabuf *wps_ie, *ies;
206e1f42 3987 size_t ielen;
84286a22 3988 int freqs[2] = { 0, 0 };
ef922c4a
JM		 3989
3990 os_memset(&params, 0, sizeof(params));
3991
3992 /* P2P Wildcard SSID */
3993 params.num_ssids = 1;
3994 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
3995 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
3996
3997 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 3998 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
3999 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
4000 NULL);
ef922c4a
JM		 4001 if (wps_ie == NULL) {
4002 wpas_p2p_scan_res_join(wpa_s, NULL);
4003 return;
4004 }
4005
206e1f42
JM		 4006 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
4007 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
ef922c4a
JM		 4008 if (ies == NULL) {
4009 wpabuf_free(wps_ie);
4010 wpas_p2p_scan_res_join(wpa_s, NULL);
4011 return;
4012 }
4013 wpabuf_put_buf(ies, wps_ie);
4014 wpabuf_free(wps_ie);
4015
6d92fa6e 4016 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
ef922c4a 4017
47185fc7 4018 params.p2p_probe = 1;
ef922c4a
JM		 4019 params.extra_ies = wpabuf_head(ies);
4020 params.extra_ies_len = wpabuf_len(ies);
84286a22
SDU		 4021 if (freq > 0) {
4022 freqs[0] = freq;
4023 params.freqs = freqs;
4024 }
ef922c4a
JM		 4025
4026 /*
4027 * Run a scan to update BSS table and start Provision Discovery once
4028 * the new scan results become available.
4029 */
17fbb751 4030 ret = wpa_drv_scan(wpa_s, &params);
4342326f 4031 if (!ret) {
acb69cec 4032 os_get_reltime(&wpa_s->scan_trigger_time);
205e6474 4033 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
4342326f 4034 }
ef922c4a
JM		 4035
4036 wpabuf_free(ies);
4037
4038 if (ret) {
4039 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
4040 "try again later");
4041 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
4042 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
9b1ab931 4043 wpas_p2p_check_join_scan_limit(wpa_s);
ef922c4a
JM		 4044 }
4045}
4046
4047
84286a22
SDU		 4048static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
4049{
4050 struct wpa_supplicant *wpa_s = eloop_ctx;
4051 wpas_p2p_join_scan_req(wpa_s, 0);
4052}
4053
4054
ef922c4a 4055static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0
JM		 4056 const u8 *dev_addr, enum p2p_wps_method wps_method,
4057 int auto_join)
ef922c4a
JM		 4058{
4059 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
b31be3a0
JM		 4060 MACSTR " dev " MACSTR ")%s",
4061 MAC2STR(iface_addr), MAC2STR(dev_addr),
4062 auto_join ? " (auto_join)" : "");
ef922c4a 4063
0918c4bf 4064 wpa_s->p2p_auto_pd = 0;
b31be3a0 4065 wpa_s->p2p_auto_join = !!auto_join;
ef922c4a
JM		 4066 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
4067 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
4068 wpa_s->pending_join_wps_method = wps_method;
4069
4070 /* Make sure we are not running find during connection establishment */
4071 wpas_p2p_stop_find(wpa_s);
4072
9b1ab931 4073 wpa_s->p2p_join_scan_count = 0;
ef922c4a
JM		 4074 wpas_p2p_join_scan(wpa_s, NULL);
4075 return 0;
b22128ef
JM		 4076}
4077
4078
4079static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
4080{
4081 struct wpa_supplicant *group;
4082 struct p2p_go_neg_results res;
8e64f258 4083 struct wpa_bss *bss;
b22128ef
JM		 4084
4085 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
4086 if (group == NULL)
4087 return -1;
3c5126a4 4088 if (group != wpa_s) {
b22128ef
JM		 4089 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
4090 sizeof(group->p2p_pin));
3c5126a4 4091 group->p2p_wps_method = wpa_s->p2p_wps_method;
2b79164f
JM		 4092 } else {
4093 /*
4094 * Need to mark the current interface for p2p_group_formation
4095 * when a separate group interface is not used. This is needed
4096 * to allow p2p_cancel stop a pending p2p_connect-join.
4097 * wpas_p2p_init_group_interface() addresses this for the case
4098 * where a separate group interface is used.
4099 */
4100 wpa_s->global->p2p_group_formation = wpa_s;
3c5126a4 4101 }
b22128ef
JM		 4102
4103 group->p2p_in_provisioning = 1;
aa9bb764 4104 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
b22128ef
JM		 4105
4106 os_memset(&res, 0, sizeof(res));
4107 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
4108 ETH_ALEN);
4109 res.wps_method = wpa_s->pending_join_wps_method;
702621e6 4110 bss = wpa_bss_get_bssid_latest(wpa_s, wpa_s->pending_join_iface_addr);
8e64f258
JM		 4111 if (bss) {
4112 res.freq = bss->freq;
4113 res.ssid_len = bss->ssid_len;
4114 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
d2858883
JM		 4115 wpa_printf(MSG_DEBUG, "P2P: Join target GO operating frequency "
4116 "from BSS table: %d MHz (SSID %s)", bss->freq,
4117 wpa_ssid_txt(bss->ssid, bss->ssid_len));
8e64f258
JM		 4118 }
4119
e91829f9
JM		 4120 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
4121 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
4122 "starting client");
4123 wpa_drv_cancel_remain_on_channel(wpa_s);
4124 wpa_s->off_channel_freq = 0;
4125 wpa_s->roc_waiting_drv_freq = 0;
4126 }
b22128ef
JM		 4127 wpas_start_wps_enrollee(group, &res);
4128
3094d483
JM		 4129 /*
4130 * Allow a longer timeout for join-a-running-group than normal 15
4131 * second group formation timeout since the GO may not have authorized
4132 * our connection yet.
4133 */
4134 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
4135 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
4136 wpa_s, NULL);
4137
b22128ef
JM		 4138 return 0;
4139}
4140
4141
5de4b721 4142static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
51e9f228 4143 int *force_freq, int *pref_freq, int go)
5de4b721 4144{
0d08efa4
IP		 4145 int *freqs, res;
4146 unsigned int freq_in_use = 0, num, i;
4147
4148 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
4149 if (!freqs)
4150 return -1;
4151
4152 num = get_shared_radio_freqs(wpa_s, freqs,
4153 wpa_s->num_multichan_concurrent);
99d7c762
JM		 4154 wpa_printf(MSG_DEBUG,
4155 "P2P: Setup freqs: freq=%d num_MCC=%d shared_freqs=%u",
4156 freq, wpa_s->num_multichan_concurrent, num);
0d08efa4 4157
5de4b721 4158 if (freq > 0) {
51e9f228
JM		 4159 int ret;
4160 if (go)
4161 ret = p2p_supported_freq(wpa_s->global->p2p, freq);
4162 else
4163 ret = p2p_supported_freq_cli(wpa_s->global->p2p, freq);
4164 if (!ret) {
5de4b721
JM		 4165 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
4166 "(%u MHz) is not supported for P2P uses",
4167 freq);
0d08efa4
IP		 4168 res = -3;
4169 goto exit_free;
5de4b721
JM		 4170 }
4171
0d08efa4
IP		 4172 for (i = 0; i < num; i++) {
4173 if (freqs[i] == freq)
4174 freq_in_use = 1;
4175 }
4176
4177 if (num == wpa_s->num_multichan_concurrent && !freq_in_use) {
4178 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz as there are no available channels",
4179 freq);
4180 res = -2;
4181 goto exit_free;
5de4b721
JM		 4182 }
4183 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
4184 "requested channel (%u MHz)", freq);
4185 *force_freq = freq;
0d08efa4
IP		 4186 goto exit_ok;
4187 }
4188
4189 for (i = 0; i < num; i++) {
4190 if (!p2p_supported_freq(wpa_s->global->p2p, freqs[i]))
4191 continue;
4192
0d08efa4 4193 if (*pref_freq == 0 && num < wpa_s->num_multichan_concurrent) {
b17d89bd
JM		 4194 wpa_printf(MSG_DEBUG, "P2P: Try to prefer a frequency (%u MHz) we are already using",
4195 freqs[i]);
4196 *pref_freq = freqs[i];
4197 } else {
4198 wpa_printf(MSG_DEBUG, "P2P: Try to force us to use frequency (%u MHz) which is already in use",
4199 freqs[i]);
4200 *force_freq = freqs[i];
5de4b721 4201 }
0d08efa4 4202 break;
5de4b721
JM		 4203 }
4204
0d08efa4 4205 if (i == num) {
107a8944 4206 if (num < wpa_s->num_multichan_concurrent && num > 0) {
0d08efa4
IP		 4207 wpa_printf(MSG_DEBUG, "P2P: Current operating channels are not available for P2P. Try to use another channel");
4208 *force_freq = 0;
107a8944
JM		 4209 } else if (num < wpa_s->num_multichan_concurrent) {
4210 wpa_printf(MSG_DEBUG, "P2P: No current operating channels - try to use a new channel");
4211 *force_freq = 0;
0d08efa4
IP		 4212 } else {
4213 wpa_printf(MSG_DEBUG, "P2P: All channels are in use and none of them are P2P enabled. Cannot start P2P group");
4214 res = -2;
4215 goto exit_free;
4216 }
4217 }
4218
4219exit_ok:
4220 res = 0;
4221exit_free:
4222 os_free(freqs);
4223 return res;
5de4b721
JM		 4224}
4225
4226
b22128ef
JM		 4227/**
4228 * wpas_p2p_connect - Request P2P Group Formation to be started
4229 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4230 * @peer_addr: Address of the peer P2P Device
4231 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
4232 * @persistent_group: Whether to create a persistent group
b31be3a0 4233 * @auto_join: Whether to select join vs. GO Negotiation automatically
b22128ef
JM		 4234 * @join: Whether to join an existing group (as a client) instead of starting
4235 * Group Owner negotiation; @peer_addr is BSSID in that case
4236 * @auth: Whether to only authorize the connection instead of doing that and
4237 * initiating Group Owner negotiation
4238 * @go_intent: GO Intent or -1 to use default
4239 * @freq: Frequency for the group or 0 for auto-selection
23c84252
JM		 4240 * @persistent_id: Persistent group credentials to use for forcing GO
4241 * parameters or -1 to generate new values (SSID/passphrase)
3bc462cb
JM		 4242 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
4243 * interoperability workaround when initiating group formation
e2308e4b 4244 * @ht40: Start GO with 40 MHz channel width
20ea1ca4 4245 * @vht: Start GO with VHT support
d054a462
JM		 4246 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
4247 * failure, -2 on failure due to channel not currently available,
4248 * -3 if forced channel is not supported
b22128ef
JM		 4249 */
4250int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4251 const char *pin, enum p2p_wps_method wps_method,
b31be3a0 4252 int persistent_group, int auto_join, int join, int auth,
e2308e4b 4253 int go_intent, int freq, int persistent_id, int pd,
20ea1ca4 4254 int ht40, int vht)
b22128ef 4255{
0d08efa4 4256 int force_freq = 0, pref_freq = 0;
5de4b721 4257 int ret = 0, res;
b22128ef 4258 enum wpa_driver_if_type iftype;
6cad95db 4259 const u8 *if_addr;
23c84252 4260 struct wpa_ssid *ssid = NULL;
b22128ef 4261
9526fd29
JM		 4262 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4263 return -1;
4264
23c84252
JM		 4265 if (persistent_id >= 0) {
4266 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
4267 if (ssid == NULL || ssid->disabled != 2 ||
4268 ssid->mode != WPAS_MODE_P2P_GO)
4269 return -1;
4270 }
4271
01a57fe4
JM		 4272 os_free(wpa_s->global->add_psk);
4273 wpa_s->global->add_psk = NULL;
4274
b22128ef
JM		 4275 if (go_intent < 0)
4276 go_intent = wpa_s->conf->p2p_go_intent;
4277
4278 if (!auth)
4279 wpa_s->p2p_long_listen = 0;
4280
3c5126a4 4281 wpa_s->p2p_wps_method = wps_method;
b31be3a0 4282 wpa_s->p2p_persistent_group = !!persistent_group;
23c84252 4283 wpa_s->p2p_persistent_id = persistent_id;
b31be3a0
JM		 4284 wpa_s->p2p_go_intent = go_intent;
4285 wpa_s->p2p_connect_freq = freq;
aa9bb764 4286 wpa_s->p2p_fallback_to_go_neg = 0;
3bc462cb 4287 wpa_s->p2p_pd_before_go_neg = !!pd;
e2308e4b 4288 wpa_s->p2p_go_ht40 = !!ht40;
20ea1ca4 4289 wpa_s->p2p_go_vht = !!vht;
3c5126a4 4290
b22128ef
JM		 4291 if (pin)
4292 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
4293 else if (wps_method == WPS_PIN_DISPLAY) {
4294 ret = wps_generate_pin();
4295 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
4296 ret);
4297 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
4298 wpa_s->p2p_pin);
4299 } else
4300 wpa_s->p2p_pin[0] = '\0';
4301
b31be3a0 4302 if (join || auto_join) {
4147a2cc 4303 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
108def93
JM		 4304 if (auth) {
4305 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
4306 "connect a running group from " MACSTR,
4307 MAC2STR(peer_addr));
4308 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
4309 return ret;
4310 }
4147a2cc 4311 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
b22128ef 4312 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4147a2cc 4313 iface_addr) < 0) {
b22128ef 4314 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4147a2cc
JM		 4315 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
4316 dev_addr);
4317 }
b31be3a0 4318 if (auto_join) {
acb69cec 4319 os_get_reltime(&wpa_s->p2p_auto_started);
b31be3a0
JM		 4320 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
4321 "%ld.%06ld",
4322 wpa_s->p2p_auto_started.sec,
4323 wpa_s->p2p_auto_started.usec);
4324 }
67527166 4325 wpa_s->user_initiated_pd = 1;
b31be3a0
JM		 4326 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
4327 auto_join) < 0)
b22128ef
JM		 4328 return -1;
4329 return ret;
4330 }
4331
51e9f228
JM		 4332 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
4333 go_intent == 15);
5de4b721
JM		 4334 if (res)
4335 return res;
1b665cbf
JM		 4336 wpas_p2p_set_own_freq_preference(wpa_s,
4337 force_freq ? force_freq : pref_freq);
b22128ef
JM		 4338
4339 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
4340
6cad95db
JB		 4341 if (wpa_s->create_p2p_iface) {
4342 /* Prepare to add a new interface for the group */
4343 iftype = WPA_IF_P2P_GROUP;
4344 if (go_intent == 15)
4345 iftype = WPA_IF_P2P_GO;
4346 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
4347 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
4348 "interface for the group");
b22128ef 4349 return -1;
6cad95db 4350 }
b22128ef 4351
6cad95db
JB		 4352 if_addr = wpa_s->pending_interface_addr;
4353 } else
4354 if_addr = wpa_s->own_addr;
b22128ef
JM		 4355
4356 if (auth) {
4357 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
6cad95db 4358 go_intent, if_addr,
04a3e69d
JM		 4359 force_freq, persistent_group, ssid,
4360 pref_freq) < 0)
b22128ef
JM		 4361 return -1;
4362 return ret;
4363 }
6cad95db
JB		 4364
4365 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
4366 go_intent, if_addr, force_freq,
04a3e69d 4367 persistent_group, ssid, pref_freq) < 0) {
6cad95db
JB		 4368 if (wpa_s->create_p2p_iface)
4369 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 4370 return -1;
4371 }
4372 return ret;
4373}
4374
4375
4376/**
4377 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
4378 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4379 * @freq: Frequency of the channel in MHz
4380 * @duration: Duration of the stay on the channel in milliseconds
4381 *
4382 * This callback is called when the driver indicates that it has started the
4383 * requested remain-on-channel duration.
4384 */
4385void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4386 unsigned int freq, unsigned int duration)
4387{
9526fd29
JM		 4388 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4389 return;
b22128ef
JM		 4390 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
4391 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
4392 wpa_s->pending_listen_duration);
4393 wpa_s->pending_listen_freq = 0;
4394 }
4395}
4396
4397
4398static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
4399 unsigned int timeout)
4400{
4401 /* Limit maximum Listen state time based on driver limitation. */
4402 if (timeout > wpa_s->max_remain_on_chan)
4403 timeout = wpa_s->max_remain_on_chan;
4404
3ac17eba
JM		 4405 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4406 return wpa_drv_p2p_listen(wpa_s, timeout);
4407
b22128ef
JM		 4408 return p2p_listen(wpa_s->global->p2p, timeout);
4409}
4410
4411
4412/**
4413 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
4414 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4415 * @freq: Frequency of the channel in MHz
4416 *
4417 * This callback is called when the driver indicates that a remain-on-channel
4418 * operation has been completed, i.e., the duration on the requested channel
4419 * has timed out.
4420 */
4421void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
4422 unsigned int freq)
4423{
1cc3a29d 4424 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
11fb02be 4425 "(p2p_long_listen=%d ms pending_action_tx=%p)",
2f3101d8 4426 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
9526fd29
JM		 4427 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4428 return;
b22128ef
JM		 4429 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
4430 return; /* P2P module started a new operation */
2f3101d8 4431 if (offchannel_pending_action_tx(wpa_s))
b22128ef
JM		 4432 return;
4433 if (wpa_s->p2p_long_listen > 0)
11fb02be 4434 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
b22128ef
JM		 4435 if (wpa_s->p2p_long_listen > 0) {
4436 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
11fb02be 4437 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
0b5fb86a
SADR		 4438 } else {
4439 /*
4440 * When listen duration is over, stop listen & update p2p_state
4441 * to IDLE.
4442 */
4443 p2p_stop_listen(wpa_s->global->p2p);
b22128ef
JM		 4444 }
4445}
4446
4447
4448/**
4449 * wpas_p2p_group_remove - Remove a P2P group
4450 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4451 * @ifname: Network interface name of the group interface or "*" to remove all
4452 * groups
4453 * Returns: 0 on success, -1 on failure
4454 *
4455 * This function is used to remove a P2P group. This can be used to disconnect
4456 * from a group in which the local end is a P2P Client or to end a P2P Group in
4457 * case the local end is the Group Owner. If a virtual network interface was
4458 * created for this group, that interface will be removed. Otherwise, only the
4459 * configured P2P group network will be removed from the interface.
4460 */
4461int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
4462{
4463 struct wpa_global *global = wpa_s->global;
4464
4465 if (os_strcmp(ifname, "*") == 0) {
4466 struct wpa_supplicant *prev;
4467 wpa_s = global->ifaces;
4468 while (wpa_s) {
4469 prev = wpa_s;
4470 wpa_s = wpa_s->next;
d99ca89d
IP		 4471 if (prev->p2p_group_interface !=
4472 NOT_P2P_GROUP_INTERFACE ||
4473 (prev->current_ssid &&
4474 prev->current_ssid->p2p_group))
4475 wpas_p2p_disconnect(prev);
b22128ef
JM		 4476 }
4477 return 0;
4478 }
4479
4480 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4481 if (os_strcmp(wpa_s->ifname, ifname) == 0)
4482 break;
4483 }
4484
3103f345 4485 return wpas_p2p_disconnect(wpa_s);
b22128ef
JM		 4486}
4487
4488
4abc0424
WJL		 4489static int wpas_p2p_select_go_freq(struct wpa_supplicant *wpa_s, int freq)
4490{
4491 unsigned int r;
4492
4493 if (freq == 2) {
4494 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
4495 "band");
4496 if (wpa_s->best_24_freq > 0 &&
556b30da
JM		 4497 p2p_supported_freq_go(wpa_s->global->p2p,
4498 wpa_s->best_24_freq)) {
4abc0424
WJL		 4499 freq = wpa_s->best_24_freq;
4500 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
4501 "channel: %d MHz", freq);
4502 } else {
4503 os_get_random((u8 *) &r, sizeof(r));
4504 freq = 2412 + (r % 3) * 25;
4505 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
4506 "channel: %d MHz", freq);
4507 }
4508 }
4509
4510 if (freq == 5) {
4511 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
4512 "band");
4513 if (wpa_s->best_5_freq > 0 &&
556b30da 4514 p2p_supported_freq_go(wpa_s->global->p2p,
4abc0424
WJL		 4515 wpa_s->best_5_freq)) {
4516 freq = wpa_s->best_5_freq;
4517 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
4518 "channel: %d MHz", freq);
4519 } else {
4520 os_get_random((u8 *) &r, sizeof(r));
4521 freq = 5180 + (r % 4) * 20;
556b30da 4522 if (!p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4abc0424
WJL		 4523 wpa_printf(MSG_DEBUG, "P2P: Could not select "
4524 "5 GHz channel for P2P group");
4525 return -1;
4526 }
4527 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
4528 "channel: %d MHz", freq);
4529 }
4530 }
4531
556b30da 4532 if (freq > 0 && !p2p_supported_freq_go(wpa_s->global->p2p, freq)) {
4abc0424
WJL		 4533 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
4534 "(%u MHz) is not supported for P2P uses",
4535 freq);
4536 return -1;
4537 }
4538
4539 return freq;
4540}
4541
4542
b8349523
NKG		 4543static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
4544 struct p2p_go_neg_results *params,
20ea1ca4 4545 int freq, int ht40, int vht,
54733624 4546 const struct p2p_channels *channels)
b22128ef 4547{
0d08efa4 4548 int res, *freqs;
c6ccf12d 4549 unsigned int pref_freq;
0d08efa4 4550 unsigned int num, i;
b22128ef
JM		 4551
4552 os_memset(params, 0, sizeof(*params));
4553 params->role_go = 1;
7aeac985 4554 params->ht40 = ht40;
20ea1ca4 4555 params->vht = vht;
7cfc4ac3 4556 if (freq) {
54733624
JM		 4557 if (!freq_included(channels, freq)) {
4558 wpa_printf(MSG_DEBUG, "P2P: Forced GO freq %d MHz not "
4559 "accepted", freq);
4560 return -1;
4561 }
7cfc4ac3
AGS		 4562 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
4563 "frequency %d MHz", freq);
b22128ef 4564 params->freq = freq;
7cfc4ac3
AGS		 4565 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
4566 wpa_s->conf->p2p_oper_channel >= 1 &&
54733624
JM		 4567 wpa_s->conf->p2p_oper_channel <= 11 &&
4568 freq_included(channels,
4569 2407 + 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 4570 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 4571 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
4572 "frequency %d MHz", params->freq);
54733624
JM		 4573 } else if ((wpa_s->conf->p2p_oper_reg_class == 115 ||
4574 wpa_s->conf->p2p_oper_reg_class == 116 ||
4575 wpa_s->conf->p2p_oper_reg_class == 117 ||
4576 wpa_s->conf->p2p_oper_reg_class == 124 ||
4577 wpa_s->conf->p2p_oper_reg_class == 126 ||
4578 wpa_s->conf->p2p_oper_reg_class == 127) &&
4579 freq_included(channels,
4580 5000 + 5 * wpa_s->conf->p2p_oper_channel)) {
b22128ef 4581 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 4582 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
4583 "frequency %d MHz", params->freq);
4584 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
4585 wpa_s->best_overall_freq > 0 &&
556b30da
JM		 4586 p2p_supported_freq_go(wpa_s->global->p2p,
4587 wpa_s->best_overall_freq) &&
54733624 4588 freq_included(channels, wpa_s->best_overall_freq)) {
7cfc4ac3
AGS		 4589 params->freq = wpa_s->best_overall_freq;
4590 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
4591 "channel %d MHz", params->freq);
4592 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
4593 wpa_s->best_24_freq > 0 &&
556b30da
JM		 4594 p2p_supported_freq_go(wpa_s->global->p2p,
4595 wpa_s->best_24_freq) &&
54733624 4596 freq_included(channels, wpa_s->best_24_freq)) {
7cfc4ac3
AGS		 4597 params->freq = wpa_s->best_24_freq;
4598 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
4599 "channel %d MHz", params->freq);
4600 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
4601 wpa_s->best_5_freq > 0 &&
556b30da
JM		 4602 p2p_supported_freq_go(wpa_s->global->p2p,
4603 wpa_s->best_5_freq) &&
54733624 4604 freq_included(channels, wpa_s->best_5_freq)) {
7cfc4ac3
AGS		 4605 params->freq = wpa_s->best_5_freq;
4606 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
4607 "channel %d MHz", params->freq);
c6ccf12d
SS		 4608 } else if ((pref_freq = p2p_get_pref_freq(wpa_s->global->p2p,
4609 channels))) {
4610 params->freq = pref_freq;
4611 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz from preferred "
4612 "channels", params->freq);
7cfc4ac3 4613 } else {
6f3bc72b
JM		 4614 int chan;
4615 for (chan = 0; chan < 11; chan++) {
4616 params->freq = 2412 + chan * 5;
4617 if (!wpas_p2p_disallowed_freq(wpa_s->global,
54733624
JM		 4618 params->freq) &&
4619 freq_included(channels, params->freq))
6f3bc72b
JM		 4620 break;
4621 }
4622 if (chan == 11) {
4623 wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel "
4624 "allowed");
4625 return -1;
4626 }
7cfc4ac3
AGS		 4627 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
4628 "known)", params->freq);
4629 }
4630
0d08efa4
IP		 4631 freqs = os_calloc(wpa_s->num_multichan_concurrent, sizeof(int));
4632 if (!freqs)
4633 return -1;
4634
4635 res = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
4636 wpa_s->num_multichan_concurrent);
4637 if (res < 0) {
4638 os_free(freqs);
4639 return -1;
4640 }
4641 num = res;
4642
7d669cf7
JM		 4643 for (i = 0; i < num; i++) {
4644 if (freq && freqs[i] == freq)
4645 break;
4646 if (!freq && freq_included(channels, freqs[i])) {
4647 wpa_printf(MSG_DEBUG, "P2P: Force GO on a channel we are already using (%u MHz)",
4648 freqs[i]);
4649 params->freq = freqs[i];
4650 break;
54733624 4651 }
7d669cf7 4652 }
b8349523 4653
7d669cf7
JM		 4654 if (i == num) {
4655 if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
4656 if (freq)
0d08efa4 4657 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on freq (%u MHz) as all the channels are in use", freq);
7d669cf7
JM		 4658 else
4659 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using");
4660 os_free(freqs);
4661 return -1;
4662 } else if (num == 0) {
4663 wpa_printf(MSG_DEBUG, "P2P: Use one of the free channels");
4664 } else {
4665 wpa_printf(MSG_DEBUG, "P2P: Cannot force GO on any of the channels we are already using. Use one of the free channels");
0d08efa4
IP		 4666 }
4667 }
7d669cf7 4668
0d08efa4 4669 os_free(freqs);
b8349523 4670 return 0;
b22128ef
JM		 4671}
4672
4673
4674static struct wpa_supplicant *
4675wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
4676 int go)
4677{
4678 struct wpa_supplicant *group_wpa_s;
4679
ac06fb12
JM		 4680 if (!wpas_p2p_create_iface(wpa_s)) {
4681 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
4682 "operations");
bbc6c729 4683 wpa_s->p2p_first_connection_timeout = 0;
b22128ef 4684 return wpa_s;
ac06fb12 4685 }
b22128ef
JM		 4686
4687 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
ac06fb12 4688 WPA_IF_P2P_CLIENT) < 0) {
92c4465b
JM		 4689 wpa_msg_global(wpa_s, MSG_ERROR,
4690 "P2P: Failed to add group interface");
b22128ef 4691 return NULL;
ac06fb12 4692 }
b22128ef
JM		 4693 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
4694 if (group_wpa_s == NULL) {
92c4465b
JM		 4695 wpa_msg_global(wpa_s, MSG_ERROR,
4696 "P2P: Failed to initialize group interface");
b22128ef
JM		 4697 wpas_p2p_remove_pending_group_interface(wpa_s);
4698 return NULL;
4699 }
4700
ac06fb12
JM		 4701 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
4702 group_wpa_s->ifname);
bbc6c729 4703 group_wpa_s->p2p_first_connection_timeout = 0;
b22128ef
JM		 4704 return group_wpa_s;
4705}
4706
4707
4708/**
4709 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
4710 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
4711 * @persistent_group: Whether to create a persistent group
4712 * @freq: Frequency for the group or 0 to indicate no hardcoding
20ea1ca4
EP		 4713 * @ht40: Start GO with 40 MHz channel width
4714 * @vht: Start GO with VHT support
b22128ef
JM		 4715 * Returns: 0 on success, -1 on failure
4716 *
4717 * This function creates a new P2P group with the local end as the Group Owner,
4718 * i.e., without using Group Owner Negotiation.
4719 */
4720int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
20ea1ca4 4721 int freq, int ht40, int vht)
b22128ef
JM		 4722{
4723 struct p2p_go_neg_results params;
7cfc4ac3 4724
9526fd29
JM		 4725 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4726 return -1;
4727
01a57fe4
JM		 4728 os_free(wpa_s->global->add_psk);
4729 wpa_s->global->add_psk = NULL;
4730
2d4f15d6
JJ		 4731 /* Make sure we are not running find during connection establishment */
4732 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
8713a2e6 4733 wpas_p2p_stop_find_oper(wpa_s);
2d4f15d6 4734
4abc0424
WJL		 4735 freq = wpas_p2p_select_go_freq(wpa_s, freq);
4736 if (freq < 0)
4ae4650b 4737 return -1;
4ae4650b 4738
20ea1ca4 4739 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, NULL))
b8349523 4740 return -1;
f4329aa2 4741 if (params.freq &&
556b30da 4742 !p2p_supported_freq_go(wpa_s->global->p2p, params.freq)) {
f4329aa2
JM		 4743 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
4744 "(%u MHz) is not supported for P2P uses",
4745 params.freq);
4746 return -1;
4747 }
b22128ef
JM		 4748 p2p_go_params(wpa_s->global->p2p, &params);
4749 params.persistent_group = persistent_group;
4750
4751 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
4752 if (wpa_s == NULL)
4753 return -1;
4754 wpas_start_wps_go(wpa_s, &params, 0);
4755
4756 return 0;
4757}
4758
4759
4760static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
4761 struct wpa_ssid *params, int addr_allocated)
4762{
4763 struct wpa_ssid *ssid;
4764
4765 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
4766 if (wpa_s == NULL)
4767 return -1;
5bf9a6c8 4768 wpa_s->p2p_last_4way_hs_fail = NULL;
b22128ef
JM		 4769
4770 wpa_supplicant_ap_deinit(wpa_s);
4771
4772 ssid = wpa_config_add_network(wpa_s->conf);
4773 if (ssid == NULL)
4774 return -1;
b22128ef
JM		 4775 wpa_config_set_network_defaults(ssid);
4776 ssid->temporary = 1;
4777 ssid->proto = WPA_PROTO_RSN;
4778 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
4779 ssid->group_cipher = WPA_CIPHER_CCMP;
4780 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
4781 ssid->ssid = os_malloc(params->ssid_len);
4782 if (ssid->ssid == NULL) {
b22128ef
JM		 4783 wpa_config_remove_network(wpa_s->conf, ssid->id);
4784 return -1;
4785 }
4786 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
4787 ssid->ssid_len = params->ssid_len;
4788 ssid->p2p_group = 1;
d1c8ac88 4789 ssid->export_keys = 1;
b22128ef
JM		 4790 if (params->psk_set) {
4791 os_memcpy(ssid->psk, params->psk, 32);
4792 ssid->psk_set = 1;
4793 }
4794 if (params->passphrase)
4795 ssid->passphrase = os_strdup(params->passphrase);
4796
b22128ef
JM		 4797 wpa_s->show_group_started = 1;
4798
6fc48481
RR		 4799 wpa_supplicant_select_network(wpa_s, ssid);
4800
b22128ef
JM		 4801 return 0;
4802}
4803
4804
4805int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
4806 struct wpa_ssid *ssid, int addr_allocated,
20ea1ca4 4807 int freq, int ht40, int vht,
bbc6c729
JM		 4808 const struct p2p_channels *channels,
4809 int connection_timeout)
b22128ef
JM		 4810{
4811 struct p2p_go_neg_results params;
6c0da49f 4812 int go = 0;
b22128ef
JM		 4813
4814 if (ssid->disabled != 2 || ssid->ssid == NULL)
4815 return -1;
4816
6c0da49f
JM		 4817 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
4818 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
4819 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
4820 "already running");
4821 return 0;
4822 }
4823
01a57fe4
JM		 4824 os_free(wpa_s->global->add_psk);
4825 wpa_s->global->add_psk = NULL;
4826
9d39057c 4827 /* Make sure we are not running find during connection establishment */
8713a2e6 4828 wpas_p2p_stop_find_oper(wpa_s);
b22128ef 4829
aa9bb764
JM		 4830 wpa_s->p2p_fallback_to_go_neg = 0;
4831
b22128ef
JM		 4832 if (ssid->mode == WPAS_MODE_INFRA)
4833 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
4834
4835 if (ssid->mode != WPAS_MODE_P2P_GO)
4836 return -1;
4837
4abc0424
WJL		 4838 freq = wpas_p2p_select_go_freq(wpa_s, freq);
4839 if (freq < 0)
4840 return -1;
4841
20ea1ca4 4842 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40, vht, channels))
b8349523 4843 return -1;
b22128ef
JM		 4844
4845 params.role_go = 1;
30c371e8
MH		 4846 params.psk_set = ssid->psk_set;
4847 if (params.psk_set)
4848 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
bb4d4deb
MH		 4849 if (ssid->passphrase) {
4850 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
4851 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
4852 "persistent group");
4853 return -1;
4854 }
4855 os_strlcpy(params.passphrase, ssid->passphrase,
4856 sizeof(params.passphrase));
b22128ef 4857 }
b22128ef
JM		 4858 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
4859 params.ssid_len = ssid->ssid_len;
4860 params.persistent_group = 1;
4861
4862 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
4863 if (wpa_s == NULL)
4864 return -1;
4865
bbc6c729 4866 wpa_s->p2p_first_connection_timeout = connection_timeout;
b22128ef
JM		 4867 wpas_start_wps_go(wpa_s, &params, 0);
4868
4869 return 0;
4870}
4871
4872
4873static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
4874 struct wpabuf *proberesp_ies)
4875{
4876 struct wpa_supplicant *wpa_s = ctx;
4877 if (wpa_s->ap_iface) {
4878 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
adc33680
JM		 4879 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
4880 wpabuf_free(beacon_ies);
4881 wpabuf_free(proberesp_ies);
4882 return;
4883 }
b22128ef
JM		 4884 if (beacon_ies) {
4885 wpabuf_free(hapd->p2p_beacon_ie);
4886 hapd->p2p_beacon_ie = beacon_ies;
4887 }
4888 wpabuf_free(hapd->p2p_probe_resp_ie);
4889 hapd->p2p_probe_resp_ie = proberesp_ies;
4890 } else {
4891 wpabuf_free(beacon_ies);
4892 wpabuf_free(proberesp_ies);
4893 }
4894 wpa_supplicant_ap_update_beacon(wpa_s);
4895}
4896
4897
3071e181
JM		 4898static void wpas_p2p_idle_update(void *ctx, int idle)
4899{
4900 struct wpa_supplicant *wpa_s = ctx;
4901 if (!wpa_s->ap_iface)
4902 return;
4903 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
4904 if (idle)
4905 wpas_p2p_set_group_idle_timeout(wpa_s);
4906 else
4907 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4908}
4909
4910
b22128ef 4911struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6f251b6b 4912 struct wpa_ssid *ssid)
b22128ef
JM		 4913{
4914 struct p2p_group *group;
4915 struct p2p_group_config *cfg;
4916
3ac17eba
JM		 4917 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4918 return NULL;
9526fd29
JM		 4919 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4920 return NULL;
3ac17eba 4921
b22128ef
JM		 4922 cfg = os_zalloc(sizeof(*cfg));
4923 if (cfg == NULL)
4924 return NULL;
4925
6f251b6b 4926 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
acc247b2 4927 cfg->persistent_group = 2;
6f251b6b 4928 else if (ssid->p2p_persistent_group)
acc247b2 4929 cfg->persistent_group = 1;
b22128ef 4930 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3f4ce13f
JM		 4931 if (wpa_s->max_stations &&
4932 wpa_s->max_stations < wpa_s->conf->max_num_sta)
4933 cfg->max_clients = wpa_s->max_stations;
4934 else
4935 cfg->max_clients = wpa_s->conf->max_num_sta;
6f251b6b
JM		 4936 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
4937 cfg->ssid_len = ssid->ssid_len;
b22128ef
JM		 4938 cfg->cb_ctx = wpa_s;
4939 cfg->ie_update = wpas_p2p_ie_update;
3071e181 4940 cfg->idle_update = wpas_p2p_idle_update;
b22128ef
JM		 4941
4942 group = p2p_group_init(wpa_s->global->p2p, cfg);
4943 if (group == NULL)
4944 os_free(cfg);
6f251b6b 4945 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
b22128ef
JM		 4946 p2p_group_notif_formation_done(group);
4947 wpa_s->p2p_group = group;
4948 return group;
4949}
4950
4951
4952void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4953 int registrar)
4954{
10531d21
JM		 4955 struct wpa_ssid *ssid = wpa_s->current_ssid;
4956
b22128ef
JM		 4957 if (!wpa_s->p2p_in_provisioning) {
4958 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
4959 "provisioning not in progress");
4960 return;
4961 }
4962
10531d21
JM		 4963 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4964 u8 go_dev_addr[ETH_ALEN];
4965 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
4966 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4967 ssid->ssid_len);
4968 /* Clear any stored provisioning info */
4969 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
4970 }
ec437d9e 4971
b22128ef
JM		 4972 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
4973 NULL);
41f85323 4974 wpa_s->p2p_go_group_formation_completed = 1;
361cdf34
JM		 4975 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4976 /*
4977 * Use a separate timeout for initial data connection to
4978 * complete to allow the group to be removed automatically if
4979 * something goes wrong in this step before the P2P group idle
4980 * timeout mechanism is taken into use.
4981 */
41f85323
JM		 4982 wpa_dbg(wpa_s, MSG_DEBUG,
4983 "P2P: Re-start group formation timeout (%d seconds) as client for initial connection",
4984 P2P_MAX_INITIAL_CONN_WAIT);
361cdf34
JM		 4985 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
4986 wpas_p2p_group_formation_timeout,
ad853202 4987 wpa_s->parent, NULL);
41f85323
JM		 4988 } else if (ssid) {
4989 /*
4990 * Use a separate timeout for initial data connection to
4991 * complete to allow the group to be removed automatically if
4992 * the client does not complete data connection successfully.
4993 */
4994 wpa_dbg(wpa_s, MSG_DEBUG,
4995 "P2P: Re-start group formation timeout (%d seconds) as GO for initial connection",
4996 P2P_MAX_INITIAL_CONN_WAIT_GO);
4997 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT_GO, 0,
4998 wpas_p2p_group_formation_timeout,
4999 wpa_s->parent, NULL);
5000 /*
5001 * Complete group formation on first successful data connection
5002 */
5003 wpa_s->p2p_go_group_formation_completed = 0;
361cdf34 5004 }
b22128ef
JM		 5005 if (wpa_s->global->p2p)
5006 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
3ac17eba
JM		 5007 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5008 wpa_drv_wps_success_cb(wpa_s, peer_addr);
b22128ef
JM		 5009 wpas_group_formation_completed(wpa_s, 1);
5010}
5011
5012
3734552f
JS		 5013void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
5014 struct wps_event_fail *fail)
5015{
5016 if (!wpa_s->p2p_in_provisioning) {
5017 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
5018 "provisioning not in progress");
5019 return;
5020 }
ec437d9e
JJ		 5021
5022 if (wpa_s->go_params) {
5023 p2p_clear_provisioning_info(
5024 wpa_s->global->p2p,
10531d21 5025 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 5026 }
5027
3734552f
JS		 5028 wpas_notify_p2p_wps_failed(wpa_s, fail);
5029}
5030
5031
b22128ef 5032int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
0918c4bf
JM		 5033 const char *config_method,
5034 enum wpas_p2p_prov_disc_use use)
b22128ef
JM		 5035{
5036 u16 config_methods;
5037
aa9bb764 5038 wpa_s->p2p_fallback_to_go_neg = 0;
0918c4bf 5039 wpa_s->pending_pd_use = NORMAL_PD;
8c5f7309 5040 if (os_strncmp(config_method, "display", 7) == 0)
b22128ef 5041 config_methods = WPS_CONFIG_DISPLAY;
8c5f7309 5042 else if (os_strncmp(config_method, "keypad", 6) == 0)
b22128ef 5043 config_methods = WPS_CONFIG_KEYPAD;
8c5f7309
JJ		 5044 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
5045 os_strncmp(config_method, "pushbutton", 10) == 0)
b22128ef 5046 config_methods = WPS_CONFIG_PUSHBUTTON;
8c5f7309
JJ		 5047 else {
5048 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
b22128ef 5049 return -1;
8c5f7309 5050 }
b22128ef 5051
0918c4bf
JM		 5052 if (use == WPAS_P2P_PD_AUTO) {
5053 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
5054 wpa_s->pending_pd_config_methods = config_methods;
5055 wpa_s->p2p_auto_pd = 1;
5056 wpa_s->p2p_auto_join = 0;
5057 wpa_s->pending_pd_before_join = 0;
84286a22 5058 wpa_s->auto_pd_scan_retry = 0;
0918c4bf
JM		 5059 wpas_p2p_stop_find(wpa_s);
5060 wpa_s->p2p_join_scan_count = 0;
acb69cec 5061 os_get_reltime(&wpa_s->p2p_auto_started);
84286a22
SDU		 5062 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
5063 wpa_s->p2p_auto_started.sec,
5064 wpa_s->p2p_auto_started.usec);
0918c4bf
JM		 5065 wpas_p2p_join_scan(wpa_s, NULL);
5066 return 0;
5067 }
5068
3ac17eba
JM		 5069 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
5070 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
0918c4bf
JM		 5071 config_methods,
5072 use == WPAS_P2P_PD_FOR_JOIN);
3ac17eba
JM		 5073 }
5074
9526fd29 5075 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef
JM		 5076 return -1;
5077
5078 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
0918c4bf 5079 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
67527166 5080 0, 1);
b22128ef
JM		 5081}
5082
5083
5084int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
5085 char *end)
5086{
5087 return p2p_scan_result_text(ies, ies_len, buf, end);
5088}
5089
5090
1cc3a29d
JM		 5091static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
5092{
2f3101d8 5093 if (!offchannel_pending_action_tx(wpa_s))
1cc3a29d
JM		 5094 return;
5095
5096 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
5097 "operation request");
2f3101d8 5098 offchannel_clear_pending_action_tx(wpa_s);
1cc3a29d
JM		 5099}
5100
5101
b22128ef 5102int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
046ef4aa 5103 enum p2p_discovery_type type,
6d92fa6e 5104 unsigned int num_req_dev_types, const u8 *req_dev_types,
37448ede 5105 const u8 *dev_id, unsigned int search_delay)
b22128ef 5106{
1cc3a29d 5107 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef
JM		 5108 wpa_s->p2p_long_listen = 0;
5109
3ac17eba
JM		 5110 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5111 return wpa_drv_p2p_find(wpa_s, timeout, type);
5112
5bda43cd 5113 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
85a6cdb5 5114 wpa_s->p2p_in_provisioning)
9526fd29
JM		 5115 return -1;
5116
433cd2ce
JM		 5117 wpa_supplicant_cancel_sched_scan(wpa_s);
5118
046ef4aa 5119 return p2p_find(wpa_s->global->p2p, timeout, type,
37448ede
JM		 5120 num_req_dev_types, req_dev_types, dev_id,
5121 search_delay);
b22128ef
JM		 5122}
5123
5124
8713a2e6 5125static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
b22128ef 5126{
1cc3a29d 5127 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef 5128 wpa_s->p2p_long_listen = 0;
9d39057c 5129 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
ef922c4a 5130 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
e665ca9a 5131 wpa_s->global->p2p_cb_on_scan_complete = 0;
b22128ef 5132
3ac17eba
JM		 5133 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
5134 wpa_drv_p2p_stop_find(wpa_s);
8713a2e6 5135 return 1;
3ac17eba
JM		 5136 }
5137
9526fd29
JM		 5138 if (wpa_s->global->p2p)
5139 p2p_stop_find(wpa_s->global->p2p);
b22128ef 5140
8713a2e6
JM		 5141 return 0;
5142}
5143
5144
5145void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
5146{
5147 if (wpas_p2p_stop_find_oper(wpa_s) > 0)
5148 return;
b22128ef
JM		 5149 wpas_p2p_remove_pending_group_interface(wpa_s);
5150}
5151
5152
5153static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
5154{
5155 struct wpa_supplicant *wpa_s = eloop_ctx;
5156 wpa_s->p2p_long_listen = 0;
5157}
5158
5159
5160int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
5161{
5162 int res;
5163
9526fd29
JM		 5164 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5165 return -1;
5166
433cd2ce 5167 wpa_supplicant_cancel_sched_scan(wpa_s);
1cc3a29d
JM		 5168 wpas_p2p_clear_pending_action_tx(wpa_s);
5169
b22128ef
JM		 5170 if (timeout == 0) {
5171 /*
5172 * This is a request for unlimited Listen state. However, at
5173 * least for now, this is mapped to a Listen state for one
5174 * hour.
5175 */
5176 timeout = 3600;
5177 }
5178 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
5179 wpa_s->p2p_long_listen = 0;
5180
2bb747e2
JM		 5181 /*
5182 * Stop previous find/listen operation to avoid trying to request a new
5183 * remain-on-channel operation while the driver is still running the
5184 * previous one.
5185 */
5186 if (wpa_s->global->p2p)
5187 p2p_stop_find(wpa_s->global->p2p);
5188
b22128ef
JM		 5189 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
5190 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
11fb02be 5191 wpa_s->p2p_long_listen = timeout * 1000;
b22128ef
JM		 5192 eloop_register_timeout(timeout, 0,
5193 wpas_p2p_long_listen_timeout,
5194 wpa_s, NULL);
5195 }
5196
5197 return res;
5198}
5199
5200
4c08c0bd 5201int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 5202 u8 *buf, size_t len, int p2p_group)
5203{
4c08c0bd
JM		 5204 struct wpabuf *p2p_ie;
5205 int ret;
5206
b22128ef
JM		 5207 if (wpa_s->global->p2p_disabled)
5208 return -1;
5209 if (wpa_s->global->p2p == NULL)
5210 return -1;
e1f1509b
JM		 5211 if (bss == NULL)
5212 return -1;
b22128ef 5213
4c08c0bd
JM		 5214 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
5215 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
5216 p2p_group, p2p_ie);
5217 wpabuf_free(p2p_ie);
5218
5219 return ret;
b22128ef
JM		 5220}
5221
5222
5223int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
04a85e44 5224 const u8 *dst, const u8 *bssid,
baf513d6 5225 const u8 *ie, size_t ie_len, int ssi_signal)
b22128ef
JM		 5226{
5227 if (wpa_s->global->p2p_disabled)
5228 return 0;
5229 if (wpa_s->global->p2p == NULL)
5230 return 0;
5231
2d43d37f
JB		 5232 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
5233 ie, ie_len)) {
5234 case P2P_PREQ_NOT_P2P:
5235 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
5236 ssi_signal);
5237 /* fall through */
5238 case P2P_PREQ_MALFORMED:
5239 case P2P_PREQ_NOT_LISTEN:
5240 case P2P_PREQ_NOT_PROCESSED:
5241 default: /* make gcc happy */
5242 return 0;
5243 case P2P_PREQ_PROCESSED:
5244 return 1;
5245 }
b22128ef
JM		 5246}
5247
5248
5249void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
5250 const u8 *sa, const u8 *bssid,
5251 u8 category, const u8 *data, size_t len, int freq)
5252{
5253 if (wpa_s->global->p2p_disabled)
5254 return;
5255 if (wpa_s->global->p2p == NULL)
5256 return;
5257
5258 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
5259 freq);
5260}
5261
5262
5263void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
5264{
5265 if (wpa_s->global->p2p_disabled)
5266 return;
5267 if (wpa_s->global->p2p == NULL)
5268 return;
5269
6d92fa6e 5270 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
b22128ef
JM		 5271}
5272
5273
5274void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
5275{
5276 p2p_group_deinit(wpa_s->p2p_group);
5277 wpa_s->p2p_group = NULL;
a7fd39bb
JD		 5278
5279 wpa_s->ap_configured_cb = NULL;
5280 wpa_s->ap_configured_cb_ctx = NULL;
5281 wpa_s->ap_configured_cb_data = NULL;
5282 wpa_s->connect_without_scan = NULL;
b22128ef
JM		 5283}
5284
5285
5286int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
5287{
5288 wpa_s->p2p_long_listen = 0;
5289
3ac17eba
JM		 5290 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5291 return wpa_drv_p2p_reject(wpa_s, addr);
5292
9526fd29
JM		 5293 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5294 return -1;
5295
b22128ef
JM		 5296 return p2p_reject(wpa_s->global->p2p, addr);
5297}
5298
5299
5300/* Invite to reinvoke a persistent group */
5301int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4d32c0c4 5302 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
20ea1ca4 5303 int ht40, int vht, int pref_freq)
b22128ef
JM		 5304{
5305 enum p2p_invite_role role;
0d08efa4
IP		 5306 u8 *bssid = NULL;
5307 int force_freq = 0;
5de4b721 5308 int res;
d0f61a4b 5309 int no_pref_freq_given = pref_freq == 0;
b22128ef 5310
dbca75f8 5311 wpa_s->global->p2p_invite_group = NULL;
77e4e853
JM		 5312 if (peer_addr)
5313 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
5314 else
5315 os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
5316
4d32c0c4
JM		 5317 wpa_s->p2p_persistent_go_freq = freq;
5318 wpa_s->p2p_go_ht40 = !!ht40;
b22128ef
JM		 5319 if (ssid->mode == WPAS_MODE_P2P_GO) {
5320 role = P2P_INVITE_ROLE_GO;
5321 if (peer_addr == NULL) {
5322 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
5323 "address in invitation command");
5324 return -1;
5325 }
5326 if (wpas_p2p_create_iface(wpa_s)) {
5327 if (wpas_p2p_add_group_interface(wpa_s,
5328 WPA_IF_P2P_GO) < 0) {
5329 wpa_printf(MSG_ERROR, "P2P: Failed to "
5330 "allocate a new interface for the "
5331 "group");
5332 return -1;
5333 }
5334 bssid = wpa_s->pending_interface_addr;
5335 } else
5336 bssid = wpa_s->own_addr;
5337 } else {
5338 role = P2P_INVITE_ROLE_CLIENT;
5339 peer_addr = ssid->bssid;
5340 }
5341 wpa_s->pending_invite_ssid_id = ssid->id;
5342
51e9f228
JM		 5343 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5344 role == P2P_INVITE_ROLE_GO);
5de4b721
JM		 5345 if (res)
5346 return res;
79879f4a 5347
3ac17eba
JM		 5348 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5349 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
5350 ssid->ssid, ssid->ssid_len,
5351 go_dev_addr, 1);
5352
9526fd29
JM		 5353 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5354 return -1;
5355
d0f61a4b
JM		 5356 if (wpa_s->parent->conf->p2p_ignore_shared_freq &&
5357 no_pref_freq_given && pref_freq > 0 &&
5358 wpa_s->num_multichan_concurrent > 1 &&
5359 wpas_p2p_num_unused_channels(wpa_s) > 0) {
5360 wpa_printf(MSG_DEBUG, "P2P: Ignore own channel preference %d MHz for invitation due to p2p_ignore_shared_freq=1 configuration",
5361 pref_freq);
5362 pref_freq = 0;
5363 }
5364
b22128ef 5365 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a
DG		 5366 ssid->ssid, ssid->ssid_len, force_freq, go_dev_addr,
5367 1, pref_freq);
b22128ef
JM		 5368}
5369
5370
5371/* Invite to join an active group */
5372int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
5373 const u8 *peer_addr, const u8 *go_dev_addr)
5374{
5375 struct wpa_global *global = wpa_s->global;
5376 enum p2p_invite_role role;
0d08efa4 5377 u8 *bssid = NULL;
b22128ef 5378 struct wpa_ssid *ssid;
c427ac92 5379 int persistent;
73b54d63 5380 int freq = 0, force_freq = 0, pref_freq = 0;
5de4b721 5381 int res;
b22128ef 5382
4d32c0c4
JM		 5383 wpa_s->p2p_persistent_go_freq = 0;
5384 wpa_s->p2p_go_ht40 = 0;
20ea1ca4 5385 wpa_s->p2p_go_vht = 0;
4d32c0c4 5386
b22128ef
JM		 5387 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5388 if (os_strcmp(wpa_s->ifname, ifname) == 0)
5389 break;
5390 }
5391 if (wpa_s == NULL) {
5392 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
5393 return -1;
5394 }
5395
5396 ssid = wpa_s->current_ssid;
5397 if (ssid == NULL) {
5398 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
5399 "invitation");
5400 return -1;
5401 }
5402
dbca75f8 5403 wpa_s->global->p2p_invite_group = wpa_s;
c427ac92
JM		 5404 persistent = ssid->p2p_persistent_group &&
5405 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
5406 ssid->ssid, ssid->ssid_len);
5407
b22128ef
JM		 5408 if (ssid->mode == WPAS_MODE_P2P_GO) {
5409 role = P2P_INVITE_ROLE_ACTIVE_GO;
5410 bssid = wpa_s->own_addr;
5411 if (go_dev_addr == NULL)
d7e70476 5412 go_dev_addr = wpa_s->global->p2p_dev_addr;
73b54d63 5413 freq = ssid->frequency;
b22128ef
JM		 5414 } else {
5415 role = P2P_INVITE_ROLE_CLIENT;
5416 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
5417 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
5418 "invite to current group");
5419 return -1;
5420 }
5421 bssid = wpa_s->bssid;
5422 if (go_dev_addr == NULL &&
5423 !is_zero_ether_addr(wpa_s->go_dev_addr))
5424 go_dev_addr = wpa_s->go_dev_addr;
73b54d63
JM		 5425 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
5426 (int) wpa_s->assoc_freq;
b22128ef 5427 }
bb79dc72 5428 wpa_s->parent->pending_invite_ssid_id = -1;
b22128ef 5429
3ac17eba
JM		 5430 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5431 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
5432 ssid->ssid, ssid->ssid_len,
c427ac92 5433 go_dev_addr, persistent);
3ac17eba 5434
9526fd29
JM		 5435 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5436 return -1;
5437
51e9f228
JM		 5438 res = wpas_p2p_setup_freqs(wpa_s, freq, &force_freq, &pref_freq,
5439 role == P2P_INVITE_ROLE_ACTIVE_GO);
5de4b721
JM		 5440 if (res)
5441 return res;
0d08efa4 5442 wpas_p2p_set_own_freq_preference(wpa_s, force_freq);
79879f4a 5443
b22128ef 5444 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
79879f4a
DG		 5445 ssid->ssid, ssid->ssid_len, force_freq,
5446 go_dev_addr, persistent, pref_freq);
b22128ef
JM		 5447}
5448
5449
5450void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
5451{
5452 struct wpa_ssid *ssid = wpa_s->current_ssid;
5453 const char *ssid_txt;
5454 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 5455 int network_id = -1;
b22128ef 5456 int persistent;
b49d6ccb 5457 int freq;
b22128ef 5458
73ccd083
JM		 5459 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
5460 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5461 wpa_s->parent, NULL);
5462 }
361cdf34 5463
b22128ef 5464 if (!wpa_s->show_group_started || !ssid)
99fcd404 5465 goto done;
b22128ef
JM		 5466
5467 wpa_s->show_group_started = 0;
5468
5469 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
5470 os_memset(go_dev_addr, 0, ETH_ALEN);
5471 if (ssid->bssid_set)
5472 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
5473 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
5474 ssid->ssid_len);
5475 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
5476
a0a9f3b0
JM		 5477 if (wpa_s->global->p2p_group_formation == wpa_s)
5478 wpa_s->global->p2p_group_formation = NULL;
5479
b49d6ccb
JJ		 5480 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
5481 (int) wpa_s->assoc_freq;
b22128ef
JM		 5482 if (ssid->passphrase == NULL && ssid->psk_set) {
5483 char psk[65];
5484 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
92c4465b
JM		 5485 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
5486 "%s client ssid=\"%s\" freq=%d psk=%s "
5487 "go_dev_addr=" MACSTR "%s",
5488 wpa_s->ifname, ssid_txt, freq, psk,
5489 MAC2STR(go_dev_addr),
5490 persistent ? " [PERSISTENT]" : "");
b22128ef 5491 } else {
92c4465b
JM		 5492 wpa_msg_global(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
5493 "%s client ssid=\"%s\" freq=%d "
5494 "passphrase=\"%s\" go_dev_addr=" MACSTR "%s",
5495 wpa_s->ifname, ssid_txt, freq,
5496 ssid->passphrase ? ssid->passphrase : "",
5497 MAC2STR(go_dev_addr),
5498 persistent ? " [PERSISTENT]" : "");
b22128ef
JM		 5499 }
5500
5501 if (persistent)
4b6baa2f
JMB		 5502 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
5503 ssid, go_dev_addr);
5504 if (network_id < 0)
5505 network_id = ssid->id;
5506 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
99fcd404
JM		 5507
5508done:
f85f545e 5509 wpas_p2p_continue_after_scan(wpa_s);
b22128ef
JM		 5510}
5511
5512
5513int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
5514 u32 interval1, u32 duration2, u32 interval2)
5515{
3ac17eba
JM		 5516 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5517 return -1;
9526fd29
JM		 5518 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5519 return -1;
3ac17eba 5520
b22128ef
JM		 5521 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
5522 wpa_s->current_ssid == NULL ||
5523 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
5524 return -1;
5525
5526 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
5527 wpa_s->own_addr, wpa_s->assoc_freq,
5528 duration1, interval1, duration2, interval2);
5529}
5530
5531
5532int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
5533 unsigned int interval)
5534{
3ac17eba
JM		 5535 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5536 return -1;
5537
9526fd29
JM		 5538 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5539 return -1;
5540
b22128ef
JM		 5541 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
5542}
5543
5544
c8106615
JM		 5545static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
5546{
5fbddfdc
JM		 5547 if (wpa_s->current_ssid == NULL) {
5548 /*
c7deed74 5549 * current_ssid can be cleared when P2P client interface gets
5fbddfdc
JM		 5550 * disconnected, so assume this interface was used as P2P
5551 * client.
5552 */
5553 return 1;
5554 }
5555 return wpa_s->current_ssid->p2p_group &&
c8106615
JM		 5556 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
5557}
5558
5559
3071e181
JM		 5560static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
5561{
5562 struct wpa_supplicant *wpa_s = eloop_ctx;
5563
c8106615 5564 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
3071e181
JM		 5565 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
5566 "disabled");
5567 return;
5568 }
5569
5570 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
5571 "group");
8dba4aef 5572 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
3071e181
JM		 5573}
5574
5575
5576static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
5577{
5f482d55 5578 int timeout;
c8106615 5579
dddc7045
JM		 5580 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
5581 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
5582
c8106615 5583 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3071e181
JM		 5584 return;
5585
c8106615
JM		 5586 timeout = wpa_s->conf->p2p_group_idle;
5587 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
5588 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
5589 timeout = P2P_MAX_CLIENT_IDLE;
5590
5591 if (timeout == 0)
3071e181
JM		 5592 return;
5593
5f482d55
JM		 5594 if (timeout < 0) {
5595 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
5596 timeout = 0; /* special client mode no-timeout */
5597 else
5598 return;
5599 }
5600
8c472816
JM		 5601 if (wpa_s->p2p_in_provisioning) {
5602 /*
5603 * Use the normal group formation timeout during the
5604 * provisioning phase to avoid terminating this process too
5605 * early due to group idle timeout.
5606 */
5607 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
5608 "during provisioning");
5609 return;
5610 }
5611
361cdf34
JM		 5612 if (wpa_s->show_group_started) {
5613 /*
5614 * Use the normal group formation timeout between the end of
5615 * the provisioning phase and completion of 4-way handshake to
5616 * avoid terminating this process too early due to group idle
5617 * timeout.
5618 */
5619 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
5620 "while waiting for initial 4-way handshake to "
5621 "complete");
5622 return;
5623 }
5624
3071e181 5625 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
c8106615
JM		 5626 timeout);
5627 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
5628 wpa_s, NULL);
3071e181
JM		 5629}
5630
5631
0aadd568
JM		 5632/* Returns 1 if the interface was removed */
5633int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
5634 u16 reason_code, const u8 *ie, size_t ie_len,
5635 int locally_generated)
b22128ef 5636{
9526fd29 5637 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
0aadd568 5638 return 0;
3ac17eba 5639 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
0aadd568 5640 return 0;
b22128ef 5641
3fc14102
JM		 5642 if (!locally_generated)
5643 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
5644 ie_len);
5645
5646 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
5647 wpa_s->current_ssid &&
5648 wpa_s->current_ssid->p2p_group &&
5649 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
5650 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
5651 "session is ending");
0aadd568
JM		 5652 if (wpas_p2p_group_delete(wpa_s,
5653 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
5654 > 0)
5655 return 1;
3fc14102 5656 }
0aadd568
JM		 5657
5658 return 0;
b22128ef
JM		 5659}
5660
5661
5662void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3fc14102
JM		 5663 u16 reason_code, const u8 *ie, size_t ie_len,
5664 int locally_generated)
b22128ef 5665{
9526fd29 5666 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef 5667 return;
3ac17eba
JM		 5668 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5669 return;
b22128ef 5670
3fc14102
JM		 5671 if (!locally_generated)
5672 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
5673 ie_len);
b22128ef
JM		 5674}
5675
5676
5677void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
5678{
5679 struct p2p_data *p2p = wpa_s->global->p2p;
5680
5681 if (p2p == NULL)
5682 return;
5683
4c010834
KL		 5684 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
5685 return;
5686
b22128ef
JM		 5687 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
5688 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
5689
2f646b6e
JB		 5690 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
5691 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
b22128ef 5692
b6e01800
JM		 5693 if (wpa_s->wps &&
5694 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
5695 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
5696
5697 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
5698 p2p_set_uuid(p2p, wpa_s->wps->uuid);
5699
5700 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
5701 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
5702 p2p_set_model_name(p2p, wpa_s->conf->model_name);
5703 p2p_set_model_number(p2p, wpa_s->conf->model_number);
5704 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
5705 }
5706
2f646b6e
JB		 5707 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
5708 p2p_set_sec_dev_types(p2p,
5709 (void *) wpa_s->conf->sec_device_type,
5710 wpa_s->conf->num_sec_device_types);
b22128ef 5711
f95cac27
JMB		 5712 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
5713 int i;
5714 p2p_remove_wps_vendor_extensions(p2p);
5715 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
5716 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
5717 continue;
5718 p2p_add_wps_vendor_extension(
5719 p2p, wpa_s->conf->wps_vendor_ext[i]);
5720 }
5721 }
5722
b22128ef
JM		 5723 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
5724 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
5725 char country[3];
5726 country[0] = wpa_s->conf->country[0];
5727 country[1] = wpa_s->conf->country[1];
5728 country[2] = 0x04;
5729 p2p_set_country(p2p, country);
5730 }
5731
5732 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
5733 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
5734 wpa_s->conf->p2p_ssid_postfix ?
5735 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
5736 0);
5737 }
0f66abd2
SS		 5738
5739 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
5740 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
2463ba70
JS		 5741
5742 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
5743 u8 reg_class, channel;
5744 int ret;
5745 unsigned int r;
5746 if (wpa_s->conf->p2p_listen_reg_class &&
5747 wpa_s->conf->p2p_listen_channel) {
5748 reg_class = wpa_s->conf->p2p_listen_reg_class;
5749 channel = wpa_s->conf->p2p_listen_channel;
5750 } else {
5751 reg_class = 81;
5752 /*
5753 * Pick one of the social channels randomly as the
5754 * listen channel.
5755 */
5756 os_get_random((u8 *) &r, sizeof(r));
5757 channel = 1 + (r % 3) * 5;
5758 }
5759 ret = p2p_set_listen_channel(p2p, reg_class, channel);
5760 if (ret)
5761 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
5762 "failed: %d", ret);
5763 }
5764 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
5765 u8 op_reg_class, op_channel, cfg_op_channel;
5766 int ret = 0;
5767 unsigned int r;
5768 if (wpa_s->conf->p2p_oper_reg_class &&
5769 wpa_s->conf->p2p_oper_channel) {
5770 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
5771 op_channel = wpa_s->conf->p2p_oper_channel;
5772 cfg_op_channel = 1;
5773 } else {
5774 op_reg_class = 81;
5775 /*
5776 * Use random operation channel from (1, 6, 11)
5777 *if no other preference is indicated.
5778 */
5779 os_get_random((u8 *) &r, sizeof(r));
5780 op_channel = 1 + (r % 3) * 5;
5781 cfg_op_channel = 0;
5782 }
5783 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
5784 cfg_op_channel);
5785 if (ret)
5786 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
5787 "failed: %d", ret);
5788 }
21d996f7
JM		 5789
5790 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
5791 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
5792 wpa_s->conf->p2p_pref_chan) < 0) {
5793 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
5794 "update failed");
5795 }
556b30da
JM		 5796
5797 if (p2p_set_no_go_freq(p2p, &wpa_s->conf->p2p_no_go_freq) < 0) {
5798 wpa_printf(MSG_ERROR, "P2P: No GO channel list "
5799 "update failed");
5800 }
21d996f7 5801 }
b22128ef 5802}
aefb53bd
JM		 5803
5804
5805int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
5806 int duration)
5807{
5808 if (!wpa_s->ap_iface)
5809 return -1;
5810 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
5811 duration);
5812}
72044390
JM		 5813
5814
5815int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
5816{
9526fd29 5817 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
72044390
JM		 5818 return -1;
5819 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5820 return -1;
5821
5822 wpa_s->global->cross_connection = enabled;
5823 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
5824
5825 if (!enabled) {
5826 struct wpa_supplicant *iface;
5827
5828 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
5829 {
5830 if (iface->cross_connect_enabled == 0)
5831 continue;
5832
5833 iface->cross_connect_enabled = 0;
5834 iface->cross_connect_in_use = 0;
92c4465b
JM		 5835 wpa_msg_global(iface->parent, MSG_INFO,
5836 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
5837 iface->ifname,
5838 iface->cross_connect_uplink);
72044390
JM		 5839 }
5840 }
5841
5842 return 0;
5843}
5844
5845
5846static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
5847{
5848 struct wpa_supplicant *iface;
5849
5850 if (!uplink->global->cross_connection)
5851 return;
5852
5853 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
5854 if (!iface->cross_connect_enabled)
5855 continue;
5856 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
5857 0)
5858 continue;
5859 if (iface->ap_iface == NULL)
5860 continue;
5861 if (iface->cross_connect_in_use)
5862 continue;
5863
5864 iface->cross_connect_in_use = 1;
92c4465b
JM		 5865 wpa_msg_global(iface->parent, MSG_INFO,
5866 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
5867 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 5868 }
5869}
5870
5871
5872static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
5873{
5874 struct wpa_supplicant *iface;
5875
5876 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
5877 if (!iface->cross_connect_enabled)
5878 continue;
5879 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
5880 0)
5881 continue;
5882 if (!iface->cross_connect_in_use)
5883 continue;
5884
92c4465b
JM		 5885 wpa_msg_global(iface->parent, MSG_INFO,
5886 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
5887 iface->ifname, iface->cross_connect_uplink);
72044390
JM		 5888 iface->cross_connect_in_use = 0;
5889 }
5890}
5891
5892
5893void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
5894{
5895 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
5896 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
5897 wpa_s->cross_connect_disallowed)
5898 wpas_p2p_disable_cross_connect(wpa_s);
5899 else
5900 wpas_p2p_enable_cross_connect(wpa_s);
dddc7045
JM		 5901 if (!wpa_s->ap_iface &&
5902 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
5903 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
72044390
JM		 5904}
5905
5906
5907void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
5908{
5909 wpas_p2p_disable_cross_connect(wpa_s);
4c2c6751
JM		 5910 if (!wpa_s->ap_iface &&
5911 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
5912 wpa_s, NULL))
3071e181 5913 wpas_p2p_set_group_idle_timeout(wpa_s);
72044390
JM		 5914}
5915
5916
5917static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
5918{
5919 struct wpa_supplicant *iface;
5920
5921 if (!wpa_s->global->cross_connection)
5922 return;
5923
5924 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
5925 if (iface == wpa_s)
5926 continue;
5927 if (iface->drv_flags &
5928 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
5929 continue;
5930 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
5931 continue;
5932
5933 wpa_s->cross_connect_enabled = 1;
5934 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
5935 sizeof(wpa_s->cross_connect_uplink));
5936 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
5937 "%s to %s whenever uplink is available",
5938 wpa_s->ifname, wpa_s->cross_connect_uplink);
5939
5940 if (iface->ap_iface || iface->current_ssid == NULL ||
5941 iface->current_ssid->mode != WPAS_MODE_INFRA ||
5942 iface->cross_connect_disallowed ||
5943 iface->wpa_state != WPA_COMPLETED)
5944 break;
5945
5946 wpa_s->cross_connect_in_use = 1;
92c4465b
JM		 5947 wpa_msg_global(wpa_s->parent, MSG_INFO,
5948 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
5949 wpa_s->ifname, wpa_s->cross_connect_uplink);
72044390
JM		 5950 break;
5951 }
5952}
b73bf0a7
JM		 5953
5954
5955int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
5956{
5957 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
5958 !wpa_s->p2p_in_provisioning)
5959 return 0; /* not P2P client operation */
5960
5961 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
5962 "session overlap");
148bb37f
JM		 5963 if (wpa_s != wpa_s->parent)
5964 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
1075b295 5965 wpas_p2p_group_formation_failed(wpa_s);
b73bf0a7
JM		 5966 return 1;
5967}
b5c9da8d
JM		 5968
5969
5970void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
5971{
51e9f228 5972 struct p2p_channels chan, cli_chan;
b5c9da8d
JM		 5973
5974 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
5975 return;
5976
5977 os_memset(&chan, 0, sizeof(chan));
51e9f228
JM		 5978 os_memset(&cli_chan, 0, sizeof(cli_chan));
5979 if (wpas_p2p_setup_channels(wpa_s, &chan, &cli_chan)) {
b5c9da8d
JM		 5980 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
5981 "channel list");
5982 return;
5983 }
5984
51e9f228 5985 p2p_update_channel_list(wpa_s->global->p2p, &chan, &cli_chan);
b5c9da8d 5986}
59eba7a2
JM		 5987
5988
50178335
JM		 5989static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
5990 struct wpa_scan_results *scan_res)
5991{
5992 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
5993}
5994
5995
59eba7a2
JM		 5996int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
5997{
5998 struct wpa_global *global = wpa_s->global;
5999 int found = 0;
231bbd03 6000 const u8 *peer;
59eba7a2 6001
9526fd29
JM		 6002 if (global->p2p == NULL)
6003 return -1;
6004
59eba7a2
JM		 6005 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
6006
6007 if (wpa_s->pending_interface_name[0] &&
6008 !is_zero_ether_addr(wpa_s->pending_interface_addr))
6009 found = 1;
6010
231bbd03
SS		 6011 peer = p2p_get_go_neg_peer(global->p2p);
6012 if (peer) {
6013 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
6014 MACSTR, MAC2STR(peer));
6015 p2p_unauthorize(global->p2p, peer);
75c208b9 6016 found = 1;
231bbd03
SS		 6017 }
6018
50178335
JM		 6019 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
6020 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
6021 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
6022 found = 1;
6023 }
6024
6025 if (wpa_s->pending_pd_before_join) {
6026 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
6027 wpa_s->pending_pd_before_join = 0;
6028 found = 1;
6029 }
6030
59eba7a2
JM		 6031 wpas_p2p_stop_find(wpa_s);
6032
6033 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
6034 if (wpa_s == global->p2p_group_formation &&
a0a9f3b0
JM		 6035 (wpa_s->p2p_in_provisioning ||
6036 wpa_s->parent->pending_interface_type ==
6037 WPA_IF_P2P_CLIENT)) {
59eba7a2
JM		 6038 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
6039 "formation found - cancelling",
6040 wpa_s->ifname);
6041 found = 1;
45fee6f0
SS		 6042 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6043 wpa_s->parent, NULL);
30b80389
JM		 6044 if (wpa_s->p2p_in_provisioning) {
6045 wpas_group_formation_completed(wpa_s, 0);
6046 break;
6047 }
8dba4aef
JM		 6048 wpas_p2p_group_delete(wpa_s,
6049 P2P_GROUP_REMOVAL_REQUESTED);
59eba7a2
JM		 6050 break;
6051 }
6052 }
6053
6054 if (!found) {
6055 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
6056 return -1;
6057 }
6058
6059 return 0;
6060}
c973f386
JM		 6061
6062
6063void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
6064{
6065 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
6066 return;
6067
6068 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
6069 "being available anymore");
8dba4aef 6070 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
c973f386 6071}
7cfc4ac3
AGS		 6072
6073
6074void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
6075 int freq_24, int freq_5, int freq_overall)
6076{
6077 struct p2p_data *p2p = wpa_s->global->p2p;
6078 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
6079 return;
6080 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
6081}
9d562b79
SS		 6082
6083
6084int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
6085{
6086 u8 peer[ETH_ALEN];
6087 struct p2p_data *p2p = wpa_s->global->p2p;
6088
6089 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
6090 return -1;
6091
6092 if (hwaddr_aton(addr, peer))
6093 return -1;
6094
6095 return p2p_unauthorize(p2p, peer);
6096}
3103f345
JB		 6097
6098
6099/**
6100 * wpas_p2p_disconnect - Disconnect from a P2P Group
6101 * @wpa_s: Pointer to wpa_supplicant data
6102 * Returns: 0 on success, -1 on failure
6103 *
6104 * This can be used to disconnect from a group in which the local end is a P2P
6105 * Client or to end a P2P Group in case the local end is the Group Owner. If a
6106 * virtual network interface was created for this group, that interface will be
6107 * removed. Otherwise, only the configured P2P group network will be removed
6108 * from the interface.
6109 */
6110int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
6111{
6112
6113 if (wpa_s == NULL)
6114 return -1;
6115
0aadd568
JM		 6116 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
6117 -1 : 0;
3103f345 6118}
303f60d3
JM		 6119
6120
6121int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
6122{
ec01d5f6
JM		 6123 int ret;
6124
303f60d3
JM		 6125 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6126 return 0;
6127
ec01d5f6
JM		 6128 ret = p2p_in_progress(wpa_s->global->p2p);
6129 if (ret == 0) {
6130 /*
6131 * Check whether there is an ongoing WPS provisioning step (or
6132 * other parts of group formation) on another interface since
6133 * p2p_in_progress() does not report this to avoid issues for
6134 * scans during such provisioning step.
6135 */
6136 if (wpa_s->global->p2p_group_formation &&
6137 wpa_s->global->p2p_group_formation != wpa_s) {
6138 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Another interface (%s) "
6139 "in group formation",
6140 wpa_s->global->p2p_group_formation->ifname);
6141 ret = 1;
6142 }
6143 }
6144
c1c0b35f 6145 if (!ret && wpa_s->global->p2p_go_wait_client.sec) {
151ab808
JB		 6146 struct os_reltime now;
6147 os_get_reltime(&now);
6148 if (os_reltime_expired(&now, &wpa_s->global->p2p_go_wait_client,
6149 P2P_MAX_INITIAL_CONN_WAIT_GO)) {
c1c0b35f
JM		 6150 /* Wait for the first client has expired */
6151 wpa_s->global->p2p_go_wait_client.sec = 0;
6152 } else {
6153 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Waiting for initial client connection during group formation");
6154 ret = 1;
6155 }
6156 }
6157
ec01d5f6 6158 return ret;
303f60d3 6159}
502618f7
JM		 6160
6161
6162void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
6163 struct wpa_ssid *ssid)
502618f7
JM		 6164{
6165 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
6166 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6167 wpa_s->parent, NULL) > 0) {
eb6f8c2b
AC		 6168 /**
6169 * Remove the network by scheduling the group formation
6170 * timeout to happen immediately. The teardown code
6171 * needs to be scheduled to run asynch later so that we
6172 * don't delete data from under ourselves unexpectedly.
6173 * Calling wpas_p2p_group_formation_timeout directly
6174 * causes a series of crashes in WPS failure scenarios.
6175 */
502618f7
JM		 6176 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
6177 "P2P group network getting removed");
eb6f8c2b
AC		 6178 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
6179 wpa_s->parent, NULL);
502618f7
JM		 6180 }
6181}
87f841a1
JM		 6182
6183
6184struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
c427ac92
JM		 6185 const u8 *addr, const u8 *ssid,
6186 size_t ssid_len)
87f841a1
JM		 6187{
6188 struct wpa_ssid *s;
fbdcfd57 6189 size_t i;
87f841a1
JM		 6190
6191 for (s = wpa_s->conf->ssid; s; s = s->next) {
fbdcfd57
JM		 6192 if (s->disabled != 2)
6193 continue;
c427ac92
JM		 6194 if (ssid &&
6195 (ssid_len != s->ssid_len ||
6196 os_memcmp(ssid, s->ssid, ssid_len) != 0))
6197 continue;
01a57fe4
JM		 6198 if (addr == NULL) {
6199 if (s->mode == WPAS_MODE_P2P_GO)
6200 return s;
6201 continue;
6202 }
fbdcfd57
JM		 6203 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
6204 return s; /* peer is GO in the persistent group */
6205 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
6206 continue;
6207 for (i = 0; i < s->num_p2p_clients; i++) {
6208 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
6209 addr, ETH_ALEN) == 0)
6210 return s; /* peer is P2P client in persistent
6211 * group */
6212 }
87f841a1
JM		 6213 }
6214
6215 return NULL;
6216}
fbdcfd57
JM		 6217
6218
6219void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
6220 const u8 *addr)
6221{
eab2b50d
JM		 6222 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
6223 wpa_s->parent, NULL) > 0) {
6224 /*
6225 * This can happen if WPS provisioning step is not terminated
6226 * cleanly (e.g., P2P Client does not send WSC_Done). Since the
6227 * peer was able to connect, there is no need to time out group
41f85323
JM		 6228 * formation after this, though. In addition, this is used with
6229 * the initial connection wait on the GO as a separate formation
6230 * timeout and as such, expected to be hit after the initial WPS
6231 * provisioning step.
eab2b50d 6232 */
41f85323
JM		 6233 wpa_printf(MSG_DEBUG, "P2P: Canceled P2P group formation timeout on data connection");
6234 }
6235 if (!wpa_s->p2p_go_group_formation_completed) {
6236 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Marking group formation completed on GO on first data connection");
6237 wpa_s->p2p_go_group_formation_completed = 1;
6238 wpa_s->global->p2p_group_formation = NULL;
6239 wpa_s->p2p_in_provisioning = 0;
eab2b50d 6240 }
c1c0b35f 6241 wpa_s->global->p2p_go_wait_client.sec = 0;
fbdcfd57
JM		 6242 if (addr == NULL)
6243 return;
6244 wpas_p2p_add_persistent_group_client(wpa_s, addr);
6245}
aa9bb764
JM		 6246
6247
6248static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
6249 int group_added)
6250{
6251 struct wpa_supplicant *group = wpa_s;
6252 if (wpa_s->global->p2p_group_formation)
6253 group = wpa_s->global->p2p_group_formation;
6254 wpa_s = wpa_s->parent;
b80eb89d 6255 offchannel_send_action_done(wpa_s);
aa9bb764 6256 if (group_added)
8dba4aef 6257 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
aa9bb764
JM		 6258 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
6259 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
6260 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
6261 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
3bc462cb 6262 wpa_s->p2p_persistent_id,
e2308e4b 6263 wpa_s->p2p_pd_before_go_neg,
20ea1ca4
EP		 6264 wpa_s->p2p_go_ht40,
6265 wpa_s->p2p_go_vht);
aa9bb764
JM		 6266}
6267
6268
6269int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
6270{
6271 if (!wpa_s->p2p_fallback_to_go_neg ||
6272 wpa_s->p2p_in_provisioning <= 5)
6273 return 0;
6274
b80eb89d
JM		 6275 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
6276 return 0; /* peer operating as a GO */
6277
aa9bb764
JM		 6278 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
6279 "fallback to GO Negotiation");
6280 wpas_p2p_fallback_to_go_neg(wpa_s, 1);
6281
6282 return 1;
6283}
05a77b3b
JM		 6284
6285
6286unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
6287{
05a77b3b
JM		 6288 struct wpa_supplicant *ifs;
6289
6290 if (wpa_s->wpa_state > WPA_SCANNING) {
6291 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
6292 "concurrent operation",
6293 P2P_CONCURRENT_SEARCH_DELAY);
6294 return P2P_CONCURRENT_SEARCH_DELAY;
6295 }
6296
5b81927d
JM		 6297 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
6298 radio_list) {
6299 if (ifs != wpa_s && ifs->wpa_state > WPA_SCANNING) {
05a77b3b
JM		 6300 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
6301 "delay due to concurrent operation on "
6302 "interface %s",
6303 P2P_CONCURRENT_SEARCH_DELAY, ifs->ifname);
6304 return P2P_CONCURRENT_SEARCH_DELAY;
6305 }
6306 }
6307
6308 return 0;
6309}
f85f545e
JM		 6310
6311
6312void wpas_p2p_continue_after_scan(struct wpa_supplicant *wpa_s)
6313{
6314 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Station mode scan operation not "
6315 "pending anymore (sta_scan_pending=%d "
6316 "p2p_cb_on_scan_complete=%d)", wpa_s->sta_scan_pending,
6317 wpa_s->global->p2p_cb_on_scan_complete);
6318 wpa_s->sta_scan_pending = 0;
6319
6320 if (!wpa_s->global->p2p_cb_on_scan_complete)
6321 return;
6322 wpa_s->global->p2p_cb_on_scan_complete = 0;
6323
6324 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
6325 return;
6326
6327 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
6328 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
6329 "continued after successful connection");
6330 p2p_increase_search_delay(wpa_s->global->p2p,
6331 wpas_p2p_search_delay(wpa_s));
6332 }
6333}
01a57fe4
JM		 6334
6335
43c693c2
JM		 6336static int wpas_p2p_remove_psk_entry(struct wpa_supplicant *wpa_s,
6337 struct wpa_ssid *s, const u8 *addr,
6338 int iface_addr)
6339{
6340 struct psk_list_entry *psk, *tmp;
6341 int changed = 0;
6342
6343 dl_list_for_each_safe(psk, tmp, &s->psk_list, struct psk_list_entry,
6344 list) {
6345 if ((iface_addr && !psk->p2p &&
6346 os_memcmp(addr, psk->addr, ETH_ALEN) == 0) ||
6347 (!iface_addr && psk->p2p &&
6348 os_memcmp(addr, psk->addr, ETH_ALEN) == 0)) {
6349 wpa_dbg(wpa_s, MSG_DEBUG,
6350 "P2P: Remove persistent group PSK list entry for "
6351 MACSTR " p2p=%u",
6352 MAC2STR(psk->addr), psk->p2p);
6353 dl_list_del(&psk->list);
6354 os_free(psk);
6355 changed++;
6356 }
6357 }
6358
6359 return changed;
6360}
6361
6362
01a57fe4
JM		 6363void wpas_p2p_new_psk_cb(struct wpa_supplicant *wpa_s, const u8 *mac_addr,
6364 const u8 *p2p_dev_addr,
6365 const u8 *psk, size_t psk_len)
6366{
6367 struct wpa_ssid *ssid = wpa_s->current_ssid;
6368 struct wpa_ssid *persistent;
6369 struct psk_list_entry *p;
6370
6371 if (psk_len != sizeof(p->psk))
6372 return;
6373
6374 if (p2p_dev_addr) {
6375 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR
6376 " p2p_dev_addr=" MACSTR,
6377 MAC2STR(mac_addr), MAC2STR(p2p_dev_addr));
6378 if (is_zero_ether_addr(p2p_dev_addr))
6379 p2p_dev_addr = NULL;
6380 } else {
6381 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: New PSK for addr=" MACSTR,
6382 MAC2STR(mac_addr));
6383 }
6384
6385 if (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
6386 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: new_psk_cb during group formation");
6387 /* To be added to persistent group once created */
6388 if (wpa_s->global->add_psk == NULL) {
6389 wpa_s->global->add_psk = os_zalloc(sizeof(*p));
6390 if (wpa_s->global->add_psk == NULL)
6391 return;
6392 }
6393 p = wpa_s->global->add_psk;
6394 if (p2p_dev_addr) {
6395 p->p2p = 1;
6396 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
6397 } else {
6398 p->p2p = 0;
6399 os_memcpy(p->addr, mac_addr, ETH_ALEN);
6400 }
6401 os_memcpy(p->psk, psk, psk_len);
6402 return;
6403 }
6404
6405 if (ssid->mode != WPAS_MODE_P2P_GO || !ssid->p2p_persistent_group) {
6406 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Ignore new_psk_cb on not-persistent GO");
6407 return;
6408 }
6409
6410 persistent = wpas_p2p_get_persistent(wpa_s->parent, NULL, ssid->ssid,
6411 ssid->ssid_len);
6412 if (!persistent) {
6413 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not find persistent group information to store the new PSK");
6414 return;
6415 }
6416
6417 p = os_zalloc(sizeof(*p));
6418 if (p == NULL)
6419 return;
6420 if (p2p_dev_addr) {
6421 p->p2p = 1;
6422 os_memcpy(p->addr, p2p_dev_addr, ETH_ALEN);
6423 } else {
6424 p->p2p = 0;
6425 os_memcpy(p->addr, mac_addr, ETH_ALEN);
6426 }
6427 os_memcpy(p->psk, psk, psk_len);
6428
6429 if (dl_list_len(&persistent->psk_list) > P2P_MAX_STORED_CLIENTS) {
6430 struct psk_list_entry *last;
6431 last = dl_list_last(&persistent->psk_list,
6432 struct psk_list_entry, list);
6433 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove oldest PSK entry for "
6434 MACSTR " (p2p=%u) to make room for a new one",
6435 MAC2STR(last->addr), last->p2p);
6436 dl_list_del(&last->list);
6437 os_free(last);
6438 }
6439
43c693c2
JM		 6440 wpas_p2p_remove_psk_entry(wpa_s->parent, persistent,
6441 p2p_dev_addr ? p2p_dev_addr : mac_addr,
6442 p2p_dev_addr == NULL);
6443 if (p2p_dev_addr) {
6444 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for p2p_dev_addr="
6445 MACSTR, MAC2STR(p2p_dev_addr));
6446 } else {
6447 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Add new PSK for addr=" MACSTR,
6448 MAC2STR(mac_addr));
6449 }
01a57fe4
JM		 6450 dl_list_add(&persistent->psk_list, &p->list);
6451
6452#ifndef CONFIG_NO_CONFIG_WRITE
6453 if (wpa_s->parent->conf->update_config &&
6454 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
6455 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
6456#endif /* CONFIG_NO_CONFIG_WRITE */
6457}
f2c56602
JM		 6458
6459
6460static void wpas_p2p_remove_psk(struct wpa_supplicant *wpa_s,
6461 struct wpa_ssid *s, const u8 *addr,
6462 int iface_addr)
6463{
43c693c2 6464 int res;
f2c56602 6465
43c693c2
JM		 6466 res = wpas_p2p_remove_psk_entry(wpa_s, s, addr, iface_addr);
6467 if (res > 0) {
f2c56602 6468#ifndef CONFIG_NO_CONFIG_WRITE
43c693c2
JM		 6469 if (wpa_s->conf->update_config &&
6470 wpa_config_write(wpa_s->confname, wpa_s->conf))
6471 wpa_dbg(wpa_s, MSG_DEBUG,
6472 "P2P: Failed to update configuration");
f2c56602 6473#endif /* CONFIG_NO_CONFIG_WRITE */
43c693c2 6474 }
f2c56602
JM		 6475}
6476
6477
6478static void wpas_p2p_remove_client_go(struct wpa_supplicant *wpa_s,
6479 const u8 *peer, int iface_addr)
6480{
6481 struct hostapd_data *hapd;
6482 struct hostapd_wpa_psk *psk, *prev, *rem;
6483 struct sta_info *sta;
6484
6485 if (wpa_s->ap_iface == NULL || wpa_s->current_ssid == NULL ||
6486 wpa_s->current_ssid->mode != WPAS_MODE_P2P_GO)
6487 return;
6488
6489 /* Remove per-station PSK entry */
6490 hapd = wpa_s->ap_iface->bss[0];
6491 prev = NULL;
6492 psk = hapd->conf->ssid.wpa_psk;
6493 while (psk) {
6494 if ((iface_addr && os_memcmp(peer, psk->addr, ETH_ALEN) == 0) ||
6495 (!iface_addr &&
6496 os_memcmp(peer, psk->p2p_dev_addr, ETH_ALEN) == 0)) {
6497 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove operating group PSK entry for "
6498 MACSTR " iface_addr=%d",
6499 MAC2STR(peer), iface_addr);
6500 if (prev)
6501 prev->next = psk->next;
6502 else
6503 hapd->conf->ssid.wpa_psk = psk->next;
6504 rem = psk;
6505 psk = psk->next;
6506 os_free(rem);
6507 } else {
6508 prev = psk;
6509 psk = psk->next;
6510 }
6511 }
6512
6513 /* Disconnect from group */
6514 if (iface_addr)
6515 sta = ap_get_sta(hapd, peer);
6516 else
6517 sta = ap_get_sta_p2p(hapd, peer);
6518 if (sta) {
6519 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Disconnect peer " MACSTR
6520 " (iface_addr=%d) from group",
6521 MAC2STR(peer), iface_addr);
6522 hostapd_drv_sta_deauth(hapd, sta->addr,
6523 WLAN_REASON_DEAUTH_LEAVING);
6524 ap_sta_deauthenticate(hapd, sta, WLAN_REASON_DEAUTH_LEAVING);
6525 }
6526}
6527
6528
6529void wpas_p2p_remove_client(struct wpa_supplicant *wpa_s, const u8 *peer,
6530 int iface_addr)
6531{
6532 struct wpa_ssid *s;
6533 struct wpa_supplicant *w;
6534
6535 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Remove client " MACSTR, MAC2STR(peer));
6536
6537 /* Remove from any persistent group */
6538 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
6539 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
6540 continue;
6541 if (!iface_addr)
6542 wpas_remove_persistent_peer(wpa_s, s, peer, 0);
6543 wpas_p2p_remove_psk(wpa_s->parent, s, peer, iface_addr);
6544 }
6545
6546 /* Remove from any operating group */
6547 for (w = wpa_s->global->ifaces; w; w = w->next)
6548 wpas_p2p_remove_client_go(w, peer, iface_addr);
6549}
5bf9a6c8
JM		 6550
6551
813e7b36
JM		 6552static void wpas_p2p_psk_failure_removal(void *eloop_ctx, void *timeout_ctx)
6553{
6554 struct wpa_supplicant *wpa_s = eloop_ctx;
6555 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_PSK_FAILURE);
6556}
6557
6558
8567866d
JJ		 6559static void wpas_p2p_group_freq_conflict(void *eloop_ctx, void *timeout_ctx)
6560{
6561 struct wpa_supplicant *wpa_s = eloop_ctx;
6562
6563 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - terminate group");
6564 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
6565}
6566
6567
6568int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq,
6569 struct wpa_ssid *ssid)
6570{
6571 struct wpa_supplicant *iface;
6572
6573 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
6574 if (!iface->current_ssid ||
6575 iface->current_ssid->frequency == freq ||
6576 (iface->p2p_group_interface == NOT_P2P_GROUP_INTERFACE &&
6577 !iface->current_ssid->p2p_group))
6578 continue;
6579
6580 /* Remove the connection with least priority */
6581 if (!wpas_is_p2p_prioritized(iface)) {
6582 /* STA connection has priority over existing
6583 * P2P connection, so remove the interface. */
6584 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to single channel concurrent mode frequency conflict");
6585 eloop_register_timeout(0, 0,
6586 wpas_p2p_group_freq_conflict,
6587 iface, NULL);
6588 /* If connection in progress is P2P connection, do not
6589 * proceed for the connection. */
6590 if (wpa_s == iface)
6591 return -1;
6592 else
6593 return 0;
6594 } else {
6595 /* P2P connection has priority, disable the STA network
6596 */
6597 wpa_supplicant_disable_network(wpa_s->global->ifaces,
6598 ssid);
6599 wpa_msg(wpa_s->global->ifaces, MSG_INFO,
6600 WPA_EVENT_FREQ_CONFLICT " id=%d", ssid->id);
6601 os_memset(wpa_s->global->ifaces->pending_bssid, 0,
6602 ETH_ALEN);
6603 /* If P2P connection is in progress, continue
6604 * connecting...*/
6605 if (wpa_s == iface)
6606 return 0;
6607 else
6608 return -1;
6609 }
6610 }
6611
6612 return 0;
6613}
6614
6615
5bf9a6c8
JM		 6616int wpas_p2p_4way_hs_failed(struct wpa_supplicant *wpa_s)
6617{
6618 struct wpa_ssid *ssid = wpa_s->current_ssid;
6619
6620 if (ssid == NULL || !ssid->p2p_group)
6621 return 0;
6622
6623 if (wpa_s->p2p_last_4way_hs_fail &&
6624 wpa_s->p2p_last_4way_hs_fail == ssid) {
6625 u8 go_dev_addr[ETH_ALEN];
6626 struct wpa_ssid *persistent;
6627
6628 if (wpas_p2p_persistent_group(wpa_s, go_dev_addr,
6629 ssid->ssid,
6630 ssid->ssid_len) <= 0) {
6631 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not determine whether 4-way handshake failures were for a persistent group");
6632 goto disconnect;
6633 }
6634
6635 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Two 4-way handshake failures for a P2P group - go_dev_addr="
6636 MACSTR, MAC2STR(go_dev_addr));
6637 persistent = wpas_p2p_get_persistent(wpa_s->parent, go_dev_addr,
6638 ssid->ssid,
6639 ssid->ssid_len);
6640 if (persistent == NULL || persistent->mode != WPAS_MODE_INFRA) {
6641 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No matching persistent group stored");
6642 goto disconnect;
6643 }
6644 wpa_msg_global(wpa_s->parent, MSG_INFO,
6645 P2P_EVENT_PERSISTENT_PSK_FAIL "%d",
6646 persistent->id);
6647 disconnect:
6648 wpa_s->p2p_last_4way_hs_fail = NULL;
813e7b36
JM		 6649 /*
6650 * Remove the group from a timeout to avoid issues with caller
6651 * continuing to use the interface if this is on a P2P group
6652 * interface.
6653 */
6654 eloop_register_timeout(0, 0, wpas_p2p_psk_failure_removal,
6655 wpa_s, NULL);
5bf9a6c8
JM		 6656 return 1;
6657 }
6658
6659 wpa_s->p2p_last_4way_hs_fail = ssid;
6660 return 0;
6661}
Unnamed repository; edit this file 'description' to name the repository.