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P2P: Do not include own information in the peer table
[thirdparty/hostap.git] / wpa_supplicant / p2p_supplicant.c
CommitLineData
b22128ef
JM		 1/*
2 * wpa_supplicant - P2P
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#include "includes.h"
16
17#include "common.h"
18#include "eloop.h"
19#include "common/ieee802_11_common.h"
20#include "common/ieee802_11_defs.h"
21#include "common/wpa_ctrl.h"
22#include "wps/wps_i.h"
23#include "p2p/p2p.h"
24#include "ap/hostapd.h"
adc33680 25#include "ap/ap_config.h"
aefb53bd 26#include "ap/p2p_hostapd.h"
20a0b03d
JM		 27#include "eapol_supp/eapol_supp_sm.h"
28#include "rsn_supp/wpa.h"
b22128ef
JM		 29#include "wpa_supplicant_i.h"
30#include "driver_i.h"
31#include "ap.h"
32#include "config_ssid.h"
33#include "config.h"
b22128ef
JM		 34#include "notify.h"
35#include "scan.h"
36#include "bss.h"
24f6497c 37#include "offchannel.h"
b22128ef
JM		 38#include "wps_supplicant.h"
39#include "p2p_supplicant.h"
40
41
9b1ab931
JM		 42/*
43 * How many times to try to scan to find the GO before giving up on join
44 * request.
45 */
46#define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
47
48
b22128ef
JM		 49static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
50static struct wpa_supplicant *
51wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
52 int go);
53static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
ef922c4a 54static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
108def93
JM		 55static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
56 const u8 *dev_addr, enum p2p_wps_method wps_method);
b22128ef 57static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
72044390 58static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
3071e181
JM		 59static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
60static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
b22128ef
JM		 61
62
63static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
64 struct wpa_scan_results *scan_res)
65{
66 size_t i;
67
9526fd29 68 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 69 return;
70
71 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
72 (int) scan_res->num);
73
74 for (i = 0; i < scan_res->num; i++) {
75 struct wpa_scan_res *bss = scan_res->res[i];
76 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
77 bss->freq, bss->level,
78 (const u8 *) (bss + 1),
79 bss->ie_len) > 0)
9bcf9541 80 break;
b22128ef
JM		 81 }
82
83 p2p_scan_res_handled(wpa_s->global->p2p);
84}
85
86
046ef4aa
JMB		 87static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
88 unsigned int num_req_dev_types,
89 const u8 *req_dev_types)
b22128ef
JM		 90{
91 struct wpa_supplicant *wpa_s = ctx;
92 struct wpa_driver_scan_params params;
93 int ret;
94 struct wpabuf *wps_ie, *ies;
95 int social_channels[] = { 2412, 2437, 2462, 0, 0 };
206e1f42 96 size_t ielen;
39185dfa 97 int was_in_p2p_scan;
b22128ef 98
9526fd29
JM		 99 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
100 return -1;
101
b22128ef
JM		 102 os_memset(&params, 0, sizeof(params));
103
104 /* P2P Wildcard SSID */
105 params.num_ssids = 1;
106 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
107 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
108
109 wpa_s->wps->dev.p2p = 1;
110 wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
046ef4aa
JMB		 111 WPS_REQ_ENROLLEE,
112 num_req_dev_types, req_dev_types);
b22128ef
JM		 113 if (wps_ie == NULL)
114 return -1;
115
206e1f42
JM		 116 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
117 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
b22128ef
JM		 118 if (ies == NULL) {
119 wpabuf_free(wps_ie);
120 return -1;
121 }
122 wpabuf_put_buf(ies, wps_ie);
123 wpabuf_free(wps_ie);
124
125 p2p_scan_ie(wpa_s->global->p2p, ies);
126
47185fc7 127 params.p2p_probe = 1;
b22128ef
JM		 128 params.extra_ies = wpabuf_head(ies);
129 params.extra_ies_len = wpabuf_len(ies);
130
131 switch (type) {
132 case P2P_SCAN_SOCIAL:
133 params.freqs = social_channels;
134 break;
135 case P2P_SCAN_FULL:
136 break;
137 case P2P_SCAN_SPECIFIC:
138 social_channels[0] = freq;
139 social_channels[1] = 0;
140 params.freqs = social_channels;
141 break;
142 case P2P_SCAN_SOCIAL_PLUS_ONE:
143 social_channels[3] = freq;
144 params.freqs = social_channels;
145 break;
146 }
147
39185dfa 148 was_in_p2p_scan = wpa_s->scan_res_handler == wpas_p2p_scan_res_handler;
b22128ef 149 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
17fbb751 150 ret = wpa_drv_scan(wpa_s, &params);
b22128ef
JM		 151
152 wpabuf_free(ies);
153
39185dfa 154 if (ret) {
0c96fd6d 155 wpa_s->scan_res_handler = NULL;
39185dfa
JM		 156 if (wpa_s->scanning || was_in_p2p_scan) {
157 wpa_s->p2p_cb_on_scan_complete = 1;
158 ret = 1;
159 }
160 }
0c96fd6d 161
b22128ef
JM		 162 return ret;
163}
164
165
b22128ef
JM		 166static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
167{
168 switch (p2p_group_interface) {
169 case P2P_GROUP_INTERFACE_PENDING:
170 return WPA_IF_P2P_GROUP;
171 case P2P_GROUP_INTERFACE_GO:
172 return WPA_IF_P2P_GO;
173 case P2P_GROUP_INTERFACE_CLIENT:
174 return WPA_IF_P2P_CLIENT;
175 }
176
177 return WPA_IF_P2P_GROUP;
178}
179
180
6c0da49f
JM		 181static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
182 const u8 *ssid,
183 size_t ssid_len, int *go)
184{
185 struct wpa_ssid *s;
186
187 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
188 for (s = wpa_s->conf->ssid; s; s = s->next) {
189 if (s->disabled != 0 || !s->p2p_group ||
190 s->ssid_len != ssid_len ||
191 os_memcmp(ssid, s->ssid, ssid_len) != 0)
192 continue;
193 if (s->mode == WPAS_MODE_P2P_GO &&
194 s != wpa_s->current_ssid)
195 continue;
196 if (go)
197 *go = s->mode == WPAS_MODE_P2P_GO;
198 return wpa_s;
199 }
200 }
201
202 return NULL;
203}
204
205
b22128ef
JM		 206static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s)
207{
208 struct wpa_ssid *ssid;
209 char *gtype;
3071e181
JM		 210 const char *reason;
211
212 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
b22128ef
JM		 213
214 ssid = wpa_s->current_ssid;
215 if (ssid == NULL) {
216 /*
217 * The current SSID was not known, but there may still be a
218 * pending P2P group interface waiting for provisioning.
219 */
220 ssid = wpa_s->conf->ssid;
221 while (ssid) {
222 if (ssid->p2p_group &&
223 (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
224 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
225 break;
226 ssid = ssid->next;
227 }
228 }
229 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
230 gtype = "GO";
231 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
232 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
233 wpa_s->reassociate = 0;
234 wpa_s->disconnected = 1;
235 wpa_supplicant_deauthenticate(wpa_s,
236 WLAN_REASON_DEAUTH_LEAVING);
237 gtype = "client";
238 } else
239 gtype = "GO";
72044390
JM		 240 if (wpa_s->cross_connect_in_use) {
241 wpa_s->cross_connect_in_use = 0;
242 wpa_msg(wpa_s->parent, MSG_INFO,
243 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
244 wpa_s->ifname, wpa_s->cross_connect_uplink);
245 }
3071e181
JM		 246 switch (wpa_s->removal_reason) {
247 case P2P_GROUP_REMOVAL_REQUESTED:
248 reason = " reason=REQUESTED";
249 break;
250 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
251 reason = " reason=IDLE";
252 break;
c973f386
JM		 253 case P2P_GROUP_REMOVAL_UNAVAILABLE:
254 reason = " reason=UNAVAILABLE";
255 break;
3071e181
JM		 256 default:
257 reason = "";
258 break;
259 }
260 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_REMOVED "%s %s%s",
261 wpa_s->ifname, gtype, reason);
408af93e
JB		 262
263 if (ssid)
264 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
265
b22128ef
JM		 266 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
267 struct wpa_global *global;
268 char *ifname;
269 enum wpa_driver_if_type type;
270 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
271 wpa_s->ifname);
272 global = wpa_s->global;
273 ifname = os_strdup(wpa_s->ifname);
274 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
275 wpa_supplicant_remove_iface(wpa_s->global, wpa_s);
276 wpa_s = global->ifaces;
277 if (wpa_s && ifname)
278 wpa_drv_if_remove(wpa_s, type, ifname);
279 os_free(ifname);
280 return;
281 }
282
283 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
284 if (ssid && (ssid->p2p_group ||
285 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
286 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
287 int id = ssid->id;
20a0b03d
JM		 288 if (ssid == wpa_s->current_ssid) {
289 wpa_sm_set_config(wpa_s->wpa, NULL);
290 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
b22128ef 291 wpa_s->current_ssid = NULL;
20a0b03d 292 }
c2762e41
JS		 293 /*
294 * Networks objects created during any P2P activities are not
295 * exposed out as they might/will confuse certain non-P2P aware
296 * applications since these network objects won't behave like
297 * regular ones.
298 *
299 * Likewise, we don't send out network removed signals for such
300 * network objects.
301 */
b22128ef
JM		 302 wpa_config_remove_network(wpa_s->conf, id);
303 wpa_supplicant_clear_status(wpa_s);
304 } else {
305 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
306 "found");
307 }
308 wpa_supplicant_ap_deinit(wpa_s);
309}
310
311
312static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
313 u8 *go_dev_addr,
314 const u8 *ssid, size_t ssid_len)
315{
316 struct wpa_bss *bss;
317 const u8 *bssid;
318 struct wpabuf *p2p;
319 u8 group_capab;
320 const u8 *addr;
321
322 if (wpa_s->go_params)
323 bssid = wpa_s->go_params->peer_interface_addr;
324 else
325 bssid = wpa_s->bssid;
326
327 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
328 if (bss == NULL) {
329 u8 iface_addr[ETH_ALEN];
330 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
331 iface_addr) == 0)
332 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
333 }
334 if (bss == NULL) {
335 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
336 "group is persistent - BSS " MACSTR " not found",
337 MAC2STR(bssid));
338 return 0;
339 }
340
341 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
342 if (p2p == NULL) {
343 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
344 "group is persistent - BSS " MACSTR
345 " did not include P2P IE", MAC2STR(bssid));
346 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
347 (u8 *) (bss + 1), bss->ie_len);
348 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
349 ((u8 *) bss + 1) + bss->ie_len,
350 bss->beacon_ie_len);
351 return 0;
352 }
353
354 group_capab = p2p_get_group_capab(p2p);
355 addr = p2p_get_go_dev_addr(p2p);
356 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
357 "group_capab=0x%x", group_capab);
358 if (addr) {
359 os_memcpy(go_dev_addr, addr, ETH_ALEN);
360 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
361 MAC2STR(addr));
362 } else
363 os_memset(go_dev_addr, 0, ETH_ALEN);
364 wpabuf_free(p2p);
365
366 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
367 "go_dev_addr=" MACSTR,
368 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
369
370 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
371}
372
373
4b6baa2f
JMB		 374static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
375 struct wpa_ssid *ssid,
376 const u8 *go_dev_addr)
b22128ef
JM		 377{
378 struct wpa_ssid *s;
379 int changed = 0;
380
381 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
382 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
383 for (s = wpa_s->conf->ssid; s; s = s->next) {
384 if (s->disabled == 2 &&
385 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
386 s->ssid_len == ssid->ssid_len &&
387 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
388 break;
389 }
390
391 if (s) {
392 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
393 "entry");
394 if (ssid->passphrase && !s->passphrase)
395 changed = 1;
396 else if (ssid->passphrase && s->passphrase &&
397 os_strcmp(ssid->passphrase, s->passphrase) != 0)
398 changed = 1;
399 } else {
400 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
401 "entry");
402 changed = 1;
403 s = wpa_config_add_network(wpa_s->conf);
404 if (s == NULL)
4b6baa2f 405 return -1;
c2762e41
JS		 406
407 /*
408 * Instead of network_added we emit persistent_group_added
409 * notification. Also to keep the defense checks in
410 * persistent_group obj registration method, we set the
411 * relevant flags in s to designate it as a persistent group.
412 */
413 s->p2p_group = 1;
414 s->p2p_persistent_group = 1;
415 wpas_notify_persistent_group_added(wpa_s, s);
b22128ef
JM		 416 wpa_config_set_network_defaults(s);
417 }
418
419 s->p2p_group = 1;
420 s->p2p_persistent_group = 1;
421 s->disabled = 2;
422 s->bssid_set = 1;
423 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
424 s->mode = ssid->mode;
425 s->auth_alg = WPA_AUTH_ALG_OPEN;
426 s->key_mgmt = WPA_KEY_MGMT_PSK;
427 s->proto = WPA_PROTO_RSN;
428 s->pairwise_cipher = WPA_CIPHER_CCMP;
d1c8ac88 429 s->export_keys = 1;
b22128ef
JM		 430 if (ssid->passphrase) {
431 os_free(s->passphrase);
432 s->passphrase = os_strdup(ssid->passphrase);
433 }
434 if (ssid->psk_set) {
435 s->psk_set = 1;
436 os_memcpy(s->psk, ssid->psk, 32);
437 }
438 if (s->passphrase && !s->psk_set)
439 wpa_config_update_psk(s);
440 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
441 os_free(s->ssid);
442 s->ssid = os_malloc(ssid->ssid_len);
443 }
444 if (s->ssid) {
445 s->ssid_len = ssid->ssid_len;
446 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
447 }
448
449#ifndef CONFIG_NO_CONFIG_WRITE
450 if (changed && wpa_s->conf->update_config &&
451 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
452 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
453 }
454#endif /* CONFIG_NO_CONFIG_WRITE */
4b6baa2f
JMB		 455
456 return s->id;
b22128ef
JM		 457}
458
459
460static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
461 int success)
462{
463 struct wpa_ssid *ssid;
464 const char *ssid_txt;
465 int client;
466 int persistent;
467 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 468 int network_id = -1;
b22128ef
JM		 469
470 /*
471 * This callback is likely called for the main interface. Update wpa_s
472 * to use the group interface if a new interface was created for the
473 * group.
474 */
475 if (wpa_s->global->p2p_group_formation)
476 wpa_s = wpa_s->global->p2p_group_formation;
d1b024c9 477 wpa_s->global->p2p_group_formation = NULL;
b22128ef
JM		 478 wpa_s->p2p_in_provisioning = 0;
479
480 if (!success) {
481 wpa_msg(wpa_s->parent, MSG_INFO,
482 P2P_EVENT_GROUP_FORMATION_FAILURE);
483 wpas_p2p_group_delete(wpa_s);
484 return;
485 }
486
487 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
488
489 ssid = wpa_s->current_ssid;
490 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
491 ssid->mode = WPAS_MODE_P2P_GO;
492 p2p_group_notif_formation_done(wpa_s->p2p_group);
493 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
494 }
495
496 persistent = 0;
497 if (ssid) {
498 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
499 client = ssid->mode == WPAS_MODE_INFRA;
500 if (ssid->mode == WPAS_MODE_P2P_GO) {
501 persistent = ssid->p2p_persistent_group;
502 os_memcpy(go_dev_addr, wpa_s->parent->own_addr,
503 ETH_ALEN);
504 } else
505 persistent = wpas_p2p_persistent_group(wpa_s,
506 go_dev_addr,
507 ssid->ssid,
508 ssid->ssid_len);
509 } else {
510 ssid_txt = "";
511 client = wpa_s->p2p_group_interface ==
512 P2P_GROUP_INTERFACE_CLIENT;
62c0d27e 513 os_memset(go_dev_addr, 0, ETH_ALEN);
b22128ef
JM		 514 }
515
516 wpa_s->show_group_started = 0;
517 if (client) {
518 /*
519 * Indicate event only after successfully completed 4-way
520 * handshake, i.e., when the interface is ready for data
521 * packets.
522 */
523 wpa_s->show_group_started = 1;
524 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
525 char psk[65];
526 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
527 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 528 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
529 "%s",
530 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
531 MAC2STR(go_dev_addr),
b22128ef 532 persistent ? " [PERSISTENT]" : "");
72044390 533 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 534 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 535 } else {
536 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 537 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
538 "go_dev_addr=" MACSTR "%s",
d394a22f 539 wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
b22128ef
JM		 540 ssid && ssid->passphrase ? ssid->passphrase : "",
541 MAC2STR(go_dev_addr),
542 persistent ? " [PERSISTENT]" : "");
72044390 543 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 544 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 545 }
546
547 if (persistent)
4b6baa2f
JMB		 548 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
549 ssid, go_dev_addr);
21fe9e75 550 if (network_id < 0 && ssid)
4b6baa2f
JMB		 551 network_id = ssid->id;
552 if (!client)
553 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
b22128ef
JM		 554}
555
556
24f6497c
JM		 557static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
558 unsigned int freq,
559 const u8 *dst, const u8 *src,
560 const u8 *bssid,
561 const u8 *data, size_t data_len,
562 enum offchannel_send_action_result
563 result)
534525ff 564{
24f6497c 565 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
b22128ef 566
9526fd29 567 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef 568 return;
3ac17eba
JM		 569 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
570 return;
b22128ef 571
24f6497c
JM		 572 switch (result) {
573 case OFFCHANNEL_SEND_ACTION_SUCCESS:
574 res = P2P_SEND_ACTION_SUCCESS;
575 break;
576 case OFFCHANNEL_SEND_ACTION_NO_ACK:
577 res = P2P_SEND_ACTION_NO_ACK;
578 break;
579 case OFFCHANNEL_SEND_ACTION_FAILED:
580 res = P2P_SEND_ACTION_FAILED;
581 break;
b22128ef
JM		 582 }
583
24f6497c 584 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
b22128ef
JM		 585
586 if (wpa_s->pending_pd_before_join &&
24f6497c
JM		 587 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
588 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
b22128ef
JM		 589 wpa_s->pending_pd_before_join = 0;
590 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
591 "join-existing-group operation");
592 wpas_p2p_join_start(wpa_s);
593 }
594}
595
596
597static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
598 const u8 *src, const u8 *bssid, const u8 *buf,
599 size_t len, unsigned int wait_time)
600{
601 struct wpa_supplicant *wpa_s = ctx;
24f6497c
JM		 602 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
603 wait_time,
b106173a 604 wpas_p2p_send_action_tx_status, 1);
b22128ef
JM		 605}
606
607
608static void wpas_send_action_done(void *ctx)
609{
610 struct wpa_supplicant *wpa_s = ctx;
24f6497c 611 offchannel_send_action_done(wpa_s);
b22128ef
JM		 612}
613
614
615static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
616 struct p2p_go_neg_results *params)
617{
618 if (wpa_s->go_params == NULL) {
619 wpa_s->go_params = os_malloc(sizeof(*params));
620 if (wpa_s->go_params == NULL)
621 return -1;
622 }
623 os_memcpy(wpa_s->go_params, params, sizeof(*params));
624 return 0;
625}
626
627
628static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
629 struct p2p_go_neg_results *res)
630{
3b29972c
JM		 631 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
632 MAC2STR(res->peer_interface_addr));
e9a7ae41
JM		 633 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
634 res->ssid, res->ssid_len);
b22128ef
JM		 635 wpa_supplicant_ap_deinit(wpa_s);
636 wpas_copy_go_neg_results(wpa_s, res);
637 if (res->wps_method == WPS_PBC)
3b29972c 638 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
3c5126a4
JM		 639 else {
640 u16 dev_pw_id = DEV_PW_DEFAULT;
641 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
642 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
b22128ef 643 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
3c5126a4
JM		 644 wpa_s->p2p_pin, 1, dev_pw_id);
645 }
b22128ef
JM		 646}
647
648
649static void p2p_go_configured(void *ctx, void *data)
650{
651 struct wpa_supplicant *wpa_s = ctx;
652 struct p2p_go_neg_results *params = data;
653 struct wpa_ssid *ssid;
4b6baa2f 654 int network_id = -1;
b22128ef
JM		 655
656 ssid = wpa_s->current_ssid;
657 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
658 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
d1b024c9
JM		 659 if (wpa_s->global->p2p_group_formation == wpa_s)
660 wpa_s->global->p2p_group_formation = NULL;
b22128ef 661 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 662 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
663 "go_dev_addr=" MACSTR "%s",
b22128ef
JM		 664 wpa_s->ifname,
665 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
c481048f 666 ssid->frequency,
b22128ef
JM		 667 params->passphrase ? params->passphrase : "",
668 MAC2STR(wpa_s->parent->own_addr),
669 params->persistent_group ? " [PERSISTENT]" : "");
4b6baa2f 670
b22128ef 671 if (params->persistent_group)
4b6baa2f 672 network_id = wpas_p2p_store_persistent_group(
b22128ef
JM		 673 wpa_s->parent, ssid,
674 wpa_s->parent->own_addr);
4b6baa2f
JMB		 675 if (network_id < 0)
676 network_id = ssid->id;
677 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
72044390 678 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 679 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 680 return;
681 }
682
683 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
684 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
685 params->peer_interface_addr)) {
686 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
687 "filtering");
688 return;
689 }
690 if (params->wps_method == WPS_PBC)
d601247c 691 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
c3daaf33 692 params->peer_device_addr);
b22128ef
JM		 693 else if (wpa_s->p2p_pin[0])
694 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
695 wpa_s->p2p_pin, NULL, 0);
696 os_free(wpa_s->go_params);
697 wpa_s->go_params = NULL;
698}
699
700
701static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
702 struct p2p_go_neg_results *params,
703 int group_formation)
704{
705 struct wpa_ssid *ssid;
706
707 if (wpas_copy_go_neg_results(wpa_s, params) < 0)
708 return;
709
710 ssid = wpa_config_add_network(wpa_s->conf);
711 if (ssid == NULL)
712 return;
713
a9e02d59
JM		 714 wpa_s->show_group_started = 0;
715
b22128ef
JM		 716 wpa_config_set_network_defaults(ssid);
717 ssid->temporary = 1;
718 ssid->p2p_group = 1;
719 ssid->p2p_persistent_group = params->persistent_group;
720 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
721 WPAS_MODE_P2P_GO;
722 ssid->frequency = params->freq;
723 ssid->ssid = os_zalloc(params->ssid_len + 1);
724 if (ssid->ssid) {
725 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
726 ssid->ssid_len = params->ssid_len;
727 }
728 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
729 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
730 ssid->proto = WPA_PROTO_RSN;
731 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
732 ssid->passphrase = os_strdup(params->passphrase);
733
734 wpa_s->ap_configured_cb = p2p_go_configured;
735 wpa_s->ap_configured_cb_ctx = wpa_s;
736 wpa_s->ap_configured_cb_data = wpa_s->go_params;
7dcdcfd6 737 wpa_s->connect_without_scan = ssid;
b22128ef
JM		 738 wpa_s->reassociate = 1;
739 wpa_s->disconnected = 0;
740 wpa_supplicant_req_scan(wpa_s, 0, 0);
741}
742
743
744static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
745 const struct wpa_supplicant *src)
746{
747 struct wpa_config *d;
748 const struct wpa_config *s;
749
750 d = dst->conf;
751 s = src->conf;
752
753#define C(n) if (s->n) d->n = os_strdup(s->n)
754 C(device_name);
755 C(manufacturer);
756 C(model_name);
757 C(model_number);
758 C(serial_number);
b22128ef
JM		 759 C(config_methods);
760#undef C
3071e181 761
2f646b6e
JB		 762 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
763 os_memcpy(d->sec_device_type, s->sec_device_type,
764 sizeof(d->sec_device_type));
765 d->num_sec_device_types = s->num_sec_device_types;
766
3071e181 767 d->p2p_group_idle = s->p2p_group_idle;
b029bd33 768 d->p2p_intra_bss = s->p2p_intra_bss;
acc247b2 769 d->persistent_reconnect = s->persistent_reconnect;
b22128ef
JM		 770}
771
772
773static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
774 enum wpa_driver_if_type type)
775{
776 char ifname[120], force_ifname[120];
777
778 if (wpa_s->pending_interface_name[0]) {
779 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
780 "- skip creation of a new one");
781 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
782 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
783 "unknown?! ifname='%s'",
784 wpa_s->pending_interface_name);
785 return -1;
786 }
787 return 0;
788 }
789
a1eca5cf 790 os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
b22128ef 791 wpa_s->p2p_group_idx);
a1eca5cf
JM		 792 if (os_strlen(ifname) >= IFNAMSIZ &&
793 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
794 /* Try to avoid going over the IFNAMSIZ length limit */
795 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
796 wpa_s->p2p_group_idx);
797 }
b22128ef
JM		 798 force_ifname[0] = '\0';
799
800 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
801 ifname);
802 wpa_s->p2p_group_idx++;
803
804 wpa_s->pending_interface_type = type;
805 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
e17a2477 806 wpa_s->pending_interface_addr, NULL) < 0) {
b22128ef
JM		 807 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
808 "interface");
809 return -1;
810 }
811
812 if (force_ifname[0]) {
813 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
814 force_ifname);
815 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
816 sizeof(wpa_s->pending_interface_name));
817 } else
818 os_strlcpy(wpa_s->pending_interface_name, ifname,
819 sizeof(wpa_s->pending_interface_name));
820 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
821 MACSTR, wpa_s->pending_interface_name,
822 MAC2STR(wpa_s->pending_interface_addr));
823
824 return 0;
825}
826
827
828static void wpas_p2p_remove_pending_group_interface(
829 struct wpa_supplicant *wpa_s)
830{
831 if (!wpa_s->pending_interface_name[0] ||
832 is_zero_ether_addr(wpa_s->pending_interface_addr))
833 return; /* No pending virtual interface */
834
835 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
836 wpa_s->pending_interface_name);
837 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
838 wpa_s->pending_interface_name);
839 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
840 wpa_s->pending_interface_name[0] = '\0';
841}
842
843
844static struct wpa_supplicant *
845wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
846{
847 struct wpa_interface iface;
848 struct wpa_supplicant *group_wpa_s;
849
850 if (!wpa_s->pending_interface_name[0]) {
851 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
d75e8806
JM		 852 if (!wpas_p2p_create_iface(wpa_s))
853 return NULL;
854 /*
855 * Something has forced us to remove the pending interface; try
856 * to create a new one and hope for the best that we will get
857 * the same local address.
858 */
859 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
860 WPA_IF_P2P_CLIENT) < 0)
861 return NULL;
b22128ef
JM		 862 }
863
864 os_memset(&iface, 0, sizeof(iface));
865 iface.ifname = wpa_s->pending_interface_name;
866 iface.driver = wpa_s->driver->name;
867 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
868 iface.driver_param = wpa_s->conf->driver_param;
869 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
870 if (group_wpa_s == NULL) {
871 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
872 "wpa_supplicant interface");
873 return NULL;
874 }
875 wpa_s->pending_interface_name[0] = '\0';
876 group_wpa_s->parent = wpa_s;
877 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
878 P2P_GROUP_INTERFACE_CLIENT;
879 wpa_s->global->p2p_group_formation = group_wpa_s;
880
881 wpas_p2p_clone_config(group_wpa_s, wpa_s);
882
883 return group_wpa_s;
884}
885
886
887static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
888 void *timeout_ctx)
889{
890 struct wpa_supplicant *wpa_s = eloop_ctx;
891 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
892 if (wpa_s->global->p2p)
893 p2p_group_formation_failed(wpa_s->global->p2p);
3ac17eba
JM		 894 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
895 wpa_drv_p2p_group_formation_failed(wpa_s);
b22128ef
JM		 896 wpas_group_formation_completed(wpa_s, 0);
897}
898
899
900void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
901{
902 struct wpa_supplicant *wpa_s = ctx;
903
8eada5ca 904 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 905 wpa_drv_cancel_remain_on_channel(wpa_s);
906 wpa_s->off_channel_freq = 0;
07a30a66 907 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 908 }
909
910 if (res->status) {
911 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
912 res->status);
c2641bf7 913 wpas_notify_p2p_go_neg_completed(wpa_s, res->status);
b22128ef
JM		 914 wpas_p2p_remove_pending_group_interface(wpa_s);
915 return;
916 }
917
918 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
c2641bf7 919 wpas_notify_p2p_go_neg_completed(wpa_s, P2P_SC_SUCCESS);
b22128ef
JM		 920
921 if (wpa_s->create_p2p_iface) {
922 struct wpa_supplicant *group_wpa_s =
923 wpas_p2p_init_group_interface(wpa_s, res->role_go);
924 if (group_wpa_s == NULL) {
925 wpas_p2p_remove_pending_group_interface(wpa_s);
926 return;
927 }
3c5126a4 928 if (group_wpa_s != wpa_s) {
b22128ef
JM		 929 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
930 sizeof(group_wpa_s->p2p_pin));
3c5126a4
JM		 931 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
932 }
b22128ef
JM		 933 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
934 wpa_s->pending_interface_name[0] = '\0';
935 group_wpa_s->p2p_in_provisioning = 1;
936
937 if (res->role_go)
938 wpas_start_wps_go(group_wpa_s, res, 1);
939 else
940 wpas_start_wps_enrollee(group_wpa_s, res);
941 } else {
942 wpa_s->p2p_in_provisioning = 1;
943 wpa_s->global->p2p_group_formation = wpa_s;
944
945 if (res->role_go)
946 wpas_start_wps_go(wpa_s, res, 1);
947 else
948 wpas_start_wps_enrollee(ctx, res);
949 }
950
951 wpa_s->p2p_long_listen = 0;
952 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
953
954 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ae3e3421
JM		 955 eloop_register_timeout(15 + res->peer_config_timeout / 100,
956 (res->peer_config_timeout % 100) * 10000,
957 wpas_p2p_group_formation_timeout, wpa_s, NULL);
b22128ef
JM		 958}
959
960
3dfda83d 961void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
b22128ef
JM		 962{
963 struct wpa_supplicant *wpa_s = ctx;
3dfda83d
JM		 964 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
965 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
32d1bce0
KRK		 966
967 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
b22128ef
JM		 968}
969
970
c5db8e51 971void wpas_dev_found(void *ctx, const u8 *addr,
8fd7dc1b
JB		 972 const struct p2p_peer_info *info,
973 int new_device)
b22128ef 974{
5506d184 975#ifndef CONFIG_NO_STDOUT_DEBUG
b22128ef
JM		 976 struct wpa_supplicant *wpa_s = ctx;
977 char devtype[WPS_DEV_TYPE_BUFSIZE];
c5db8e51 978
b22128ef
JM		 979 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
980 " p2p_dev_addr=" MACSTR
981 " pri_dev_type=%s name='%s' config_methods=0x%x "
982 "dev_capab=0x%x group_capab=0x%x",
c5db8e51
KRK		 983 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
984 wps_dev_type_bin2str(info->pri_dev_type, devtype,
985 sizeof(devtype)),
986 info->device_name, info->config_methods,
987 info->dev_capab, info->group_capab);
5506d184 988#endif /* CONFIG_NO_STDOUT_DEBUG */
d642d2d2
JB		 989
990 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
b22128ef
JM		 991}
992
993
56eeb8f2
JB		 994static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
995{
996 struct wpa_supplicant *wpa_s = ctx;
997
3074d8f1
JJ		 998 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
999 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1000
56eeb8f2
JB		 1001 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1002}
1003
1004
b22128ef
JM		 1005static int wpas_start_listen(void *ctx, unsigned int freq,
1006 unsigned int duration,
1007 const struct wpabuf *probe_resp_ie)
1008{
1009 struct wpa_supplicant *wpa_s = ctx;
1010
0e2e565a 1011 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
b22128ef
JM		 1012
1013 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1014 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1015 "report received Probe Request frames");
1016 return -1;
1017 }
1018
1019 wpa_s->pending_listen_freq = freq;
1020 wpa_s->pending_listen_duration = duration;
1021
1022 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1023 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1024 "to remain on channel (%u MHz) for Listen "
1025 "state", freq);
1026 wpa_s->pending_listen_freq = 0;
1027 return -1;
1028 }
09d660b9 1029 wpa_s->off_channel_freq = 0;
07a30a66 1030 wpa_s->roc_waiting_drv_freq = freq;
b22128ef
JM		 1031
1032 return 0;
1033}
1034
1035
1036static void wpas_stop_listen(void *ctx)
1037{
1038 struct wpa_supplicant *wpa_s = ctx;
6cb22d2f 1039 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1040 wpa_drv_cancel_remain_on_channel(wpa_s);
1041 wpa_s->off_channel_freq = 0;
07a30a66 1042 wpa_s->roc_waiting_drv_freq = 0;
b22128ef 1043 }
839b33ad 1044 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
b22128ef
JM		 1045 wpa_drv_probe_req_report(wpa_s, 0);
1046}
1047
1048
1049static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1050{
1051 struct wpa_supplicant *wpa_s = ctx;
9dbf53fe 1052 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
b22128ef
JM		 1053}
1054
1055
1056static struct p2p_srv_bonjour *
1057wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1058 const struct wpabuf *query)
1059{
1060 struct p2p_srv_bonjour *bsrv;
1061 size_t len;
1062
1063 len = wpabuf_len(query);
1064 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1065 struct p2p_srv_bonjour, list) {
1066 if (len == wpabuf_len(bsrv->query) &&
1067 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1068 len) == 0)
1069 return bsrv;
1070 }
1071 return NULL;
1072}
1073
1074
1075static struct p2p_srv_upnp *
1076wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1077 const char *service)
1078{
1079 struct p2p_srv_upnp *usrv;
1080
1081 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1082 struct p2p_srv_upnp, list) {
1083 if (version == usrv->version &&
1084 os_strcmp(service, usrv->service) == 0)
1085 return usrv;
1086 }
1087 return NULL;
1088}
1089
1090
1091static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1092 u8 srv_trans_id)
1093{
1094 u8 *len_pos;
1095
1096 if (wpabuf_tailroom(resp) < 5)
1097 return;
1098
1099 /* Length (to be filled) */
1100 len_pos = wpabuf_put(resp, 2);
1101 wpabuf_put_u8(resp, srv_proto);
1102 wpabuf_put_u8(resp, srv_trans_id);
1103 /* Status Code */
1104 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1105 /* Response Data: empty */
1106 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1107}
1108
1109
1110static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1111 struct wpabuf *resp, u8 srv_trans_id)
1112{
1113 struct p2p_srv_bonjour *bsrv;
1114 u8 *len_pos;
1115
1116 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1117
1118 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1119 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1120 return;
1121 }
1122
1123 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1124 struct p2p_srv_bonjour, list) {
1125 if (wpabuf_tailroom(resp) <
1126 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1127 return;
1128 /* Length (to be filled) */
1129 len_pos = wpabuf_put(resp, 2);
1130 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1131 wpabuf_put_u8(resp, srv_trans_id);
1132 /* Status Code */
1133 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1134 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1135 wpabuf_head(bsrv->resp),
1136 wpabuf_len(bsrv->resp));
1137 /* Response Data */
1138 wpabuf_put_buf(resp, bsrv->query); /* Key */
1139 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1140 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1141 2);
1142 }
1143}
1144
1145
1146static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1147 struct wpabuf *resp, u8 srv_trans_id,
1148 const u8 *query, size_t query_len)
1149{
1150 struct p2p_srv_bonjour *bsrv;
1151 struct wpabuf buf;
1152 u8 *len_pos;
1153
1154 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1155 query, query_len);
1156 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1157 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1158 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1159 srv_trans_id);
1160 return;
1161 }
1162
1163 if (query_len == 0) {
1164 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1165 return;
1166 }
1167
1168 if (wpabuf_tailroom(resp) < 5)
1169 return;
1170 /* Length (to be filled) */
1171 len_pos = wpabuf_put(resp, 2);
1172 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1173 wpabuf_put_u8(resp, srv_trans_id);
1174
1175 wpabuf_set(&buf, query, query_len);
1176 bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1177 if (bsrv == NULL) {
1178 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1179 "available");
1180
1181 /* Status Code */
bf608cad 1182 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1183 /* Response Data: empty */
1184 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1185 2);
1186 return;
1187 }
1188
1189 /* Status Code */
1190 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1191 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1192 wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1193
1194 if (wpabuf_tailroom(resp) >=
1195 wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1196 /* Response Data */
1197 wpabuf_put_buf(resp, bsrv->query); /* Key */
1198 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1199 }
1200 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1201}
1202
1203
1204static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1205 struct wpabuf *resp, u8 srv_trans_id)
1206{
1207 struct p2p_srv_upnp *usrv;
1208 u8 *len_pos;
1209
1210 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1211
1212 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1213 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1214 return;
1215 }
1216
1217 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1218 struct p2p_srv_upnp, list) {
1219 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1220 return;
1221
1222 /* Length (to be filled) */
1223 len_pos = wpabuf_put(resp, 2);
1224 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1225 wpabuf_put_u8(resp, srv_trans_id);
1226
1227 /* Status Code */
1228 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1229 /* Response Data */
1230 wpabuf_put_u8(resp, usrv->version);
1231 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1232 usrv->service);
1233 wpabuf_put_str(resp, usrv->service);
1234 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1235 2);
1236 }
1237}
1238
1239
1240static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1241 struct wpabuf *resp, u8 srv_trans_id,
1242 const u8 *query, size_t query_len)
1243{
1244 struct p2p_srv_upnp *usrv;
1245 u8 *len_pos;
1246 u8 version;
1247 char *str;
1248 int count = 0;
1249
1250 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1251 query, query_len);
1252
1253 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1254 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1255 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1256 srv_trans_id);
1257 return;
1258 }
1259
1260 if (query_len == 0) {
1261 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1262 return;
1263 }
1264
b22128ef
JM		 1265 if (wpabuf_tailroom(resp) < 5)
1266 return;
1267
1268 /* Length (to be filled) */
1269 len_pos = wpabuf_put(resp, 2);
1270 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1271 wpabuf_put_u8(resp, srv_trans_id);
1272
79222cfa
JM		 1273 version = query[0];
1274 str = os_malloc(query_len);
1275 if (str == NULL)
1276 return;
1277 os_memcpy(str, query + 1, query_len - 1);
1278 str[query_len - 1] = '\0';
1279
b22128ef
JM		 1280 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1281 struct p2p_srv_upnp, list) {
1282 if (version != usrv->version)
1283 continue;
1284
1285 if (os_strcmp(str, "ssdp:all") != 0 &&
1286 os_strstr(usrv->service, str) == NULL)
1287 continue;
1288
1289 if (wpabuf_tailroom(resp) < 2)
1290 break;
1291 if (count == 0) {
1292 /* Status Code */
1293 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1294 /* Response Data */
1295 wpabuf_put_u8(resp, version);
1296 } else
1297 wpabuf_put_u8(resp, ',');
1298
1299 count++;
1300
1301 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1302 usrv->service);
1303 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1304 break;
1305 wpabuf_put_str(resp, usrv->service);
1306 }
714b8b53 1307 os_free(str);
b22128ef
JM		 1308
1309 if (count == 0) {
1310 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1311 "available");
1312 /* Status Code */
bf608cad 1313 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1314 /* Response Data: empty */
1315 }
1316
1317 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1318}
1319
1320
1321void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1322 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1323{
1324 struct wpa_supplicant *wpa_s = ctx;
1325 const u8 *pos = tlvs;
1326 const u8 *end = tlvs + tlvs_len;
1327 const u8 *tlv_end;
1328 u16 slen;
1329 struct wpabuf *resp;
1330 u8 srv_proto, srv_trans_id;
1331 size_t buf_len;
1332 char *buf;
1333
1334 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1335 tlvs, tlvs_len);
1336 buf_len = 2 * tlvs_len + 1;
1337 buf = os_malloc(buf_len);
1338 if (buf) {
1339 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1340 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1341 MACSTR " %u %u %s",
1342 freq, MAC2STR(sa), dialog_token, update_indic,
1343 buf);
1344 os_free(buf);
1345 }
1346
1347 if (wpa_s->p2p_sd_over_ctrl_iface)
1348 return; /* to be processed by an external program */
1349
1350 resp = wpabuf_alloc(10000);
1351 if (resp == NULL)
1352 return;
1353
1354 while (pos + 1 < end) {
1355 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1356 slen = WPA_GET_LE16(pos);
1357 pos += 2;
1358 if (pos + slen > end || slen < 2) {
1359 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1360 "length");
1361 wpabuf_free(resp);
1362 return;
1363 }
1364 tlv_end = pos + slen;
1365
1366 srv_proto = *pos++;
1367 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1368 srv_proto);
1369 srv_trans_id = *pos++;
1370 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1371 srv_trans_id);
1372
1373 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1374 pos, tlv_end - pos);
1375
6e6963ea
JM		 1376
1377 if (wpa_s->force_long_sd) {
1378 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1379 "response");
1380 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1381 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1382 goto done;
1383 }
1384
b22128ef
JM		 1385 switch (srv_proto) {
1386 case P2P_SERV_ALL_SERVICES:
1387 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1388 "for all services");
1389 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1390 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1391 wpa_printf(MSG_DEBUG, "P2P: No service "
1392 "discovery protocols available");
1393 wpas_sd_add_proto_not_avail(
1394 resp, P2P_SERV_ALL_SERVICES,
1395 srv_trans_id);
1396 break;
1397 }
1398 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1399 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1400 break;
1401 case P2P_SERV_BONJOUR:
1402 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1403 pos, tlv_end - pos);
1404 break;
1405 case P2P_SERV_UPNP:
1406 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1407 pos, tlv_end - pos);
1408 break;
1409 default:
1410 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1411 "protocol %u", srv_proto);
1412 wpas_sd_add_proto_not_avail(resp, srv_proto,
1413 srv_trans_id);
1414 break;
1415 }
1416
1417 pos = tlv_end;
1418 }
1419
6e6963ea 1420done:
e1653cac
KRK		 1421 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1422 update_indic, tlvs, tlvs_len);
1423
b22128ef
JM		 1424 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1425
1426 wpabuf_free(resp);
1427}
1428
1429
1430void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1431 const u8 *tlvs, size_t tlvs_len)
1432{
1433 struct wpa_supplicant *wpa_s = ctx;
1434 const u8 *pos = tlvs;
1435 const u8 *end = tlvs + tlvs_len;
1436 const u8 *tlv_end;
1437 u16 slen;
1438 size_t buf_len;
1439 char *buf;
1440
1441 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1442 tlvs, tlvs_len);
18708aad
JM		 1443 if (tlvs_len > 1500) {
1444 /* TODO: better way for handling this */
1445 wpa_msg_ctrl(wpa_s, MSG_INFO,
1446 P2P_EVENT_SERV_DISC_RESP MACSTR
1447 " %u <long response: %u bytes>",
1448 MAC2STR(sa), update_indic,
1449 (unsigned int) tlvs_len);
1450 } else {
1451 buf_len = 2 * tlvs_len + 1;
1452 buf = os_malloc(buf_len);
1453 if (buf) {
1454 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1455 wpa_msg_ctrl(wpa_s, MSG_INFO,
1456 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1457 MAC2STR(sa), update_indic, buf);
1458 os_free(buf);
1459 }
b22128ef
JM		 1460 }
1461
1462 while (pos < end) {
1463 u8 srv_proto, srv_trans_id, status;
1464
1465 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1466 slen = WPA_GET_LE16(pos);
1467 pos += 2;
1468 if (pos + slen > end || slen < 3) {
1469 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1470 "length");
1471 return;
1472 }
1473 tlv_end = pos + slen;
1474
1475 srv_proto = *pos++;
1476 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1477 srv_proto);
1478 srv_trans_id = *pos++;
1479 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1480 srv_trans_id);
1481 status = *pos++;
1482 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1483 status);
1484
1485 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1486 pos, tlv_end - pos);
1487
1488 pos = tlv_end;
1489 }
43a26f60
KRK		 1490
1491 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
b22128ef
JM		 1492}
1493
1494
7165c5dc
JM		 1495u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1496 const struct wpabuf *tlvs)
b22128ef 1497{
3ac17eba 1498 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
7165c5dc 1499 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
9526fd29 1500 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7165c5dc
JM		 1501 return 0;
1502 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
b22128ef
JM		 1503}
1504
1505
7165c5dc
JM		 1506u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1507 u8 version, const char *query)
b22128ef
JM		 1508{
1509 struct wpabuf *tlvs;
7165c5dc 1510 u64 ret;
b22128ef
JM		 1511
1512 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1513 if (tlvs == NULL)
7165c5dc 1514 return 0;
b22128ef
JM		 1515 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1516 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1517 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1518 wpabuf_put_u8(tlvs, version);
1519 wpabuf_put_str(tlvs, query);
1520 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1521 wpabuf_free(tlvs);
1522 return ret;
1523}
1524
1525
7165c5dc 1526int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
b22128ef 1527{
3ac17eba 1528 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
7165c5dc 1529 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
9526fd29
JM		 1530 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1531 return -1;
7165c5dc
JM		 1532 return p2p_sd_cancel_request(wpa_s->global->p2p,
1533 (void *) (uintptr_t) req);
b22128ef
JM		 1534}
1535
1536
1537void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1538 const u8 *dst, u8 dialog_token,
1539 const struct wpabuf *resp_tlvs)
1540{
3ac17eba
JM		 1541 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1542 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1543 resp_tlvs);
1544 return;
1545 }
9526fd29
JM		 1546 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1547 return;
b22128ef
JM		 1548 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1549 resp_tlvs);
1550}
1551
1552
1553void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1554{
3ac17eba
JM		 1555 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1556 wpa_drv_p2p_service_update(wpa_s);
1557 return;
1558 }
9526fd29
JM		 1559 if (wpa_s->global->p2p)
1560 p2p_sd_service_update(wpa_s->global->p2p);
b22128ef
JM		 1561}
1562
1563
1564static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1565{
1566 dl_list_del(&bsrv->list);
1567 wpabuf_free(bsrv->query);
1568 wpabuf_free(bsrv->resp);
1569 os_free(bsrv);
1570}
1571
1572
1573static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1574{
1575 dl_list_del(&usrv->list);
1576 os_free(usrv->service);
1577 os_free(usrv);
1578}
1579
1580
1581void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1582{
1583 struct p2p_srv_bonjour *bsrv, *bn;
1584 struct p2p_srv_upnp *usrv, *un;
1585
1586 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1587 struct p2p_srv_bonjour, list)
1588 wpas_p2p_srv_bonjour_free(bsrv);
1589
1590 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1591 struct p2p_srv_upnp, list)
1592 wpas_p2p_srv_upnp_free(usrv);
1593
1594 wpas_p2p_sd_service_update(wpa_s);
1595}
1596
1597
1598int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1599 struct wpabuf *query, struct wpabuf *resp)
1600{
1601 struct p2p_srv_bonjour *bsrv;
1602
1603 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1604 if (bsrv) {
1605 wpabuf_free(query);
1606 wpabuf_free(bsrv->resp);
1607 bsrv->resp = resp;
1608 return 0;
1609 }
1610
1611 bsrv = os_zalloc(sizeof(*bsrv));
1612 if (bsrv == NULL)
1613 return -1;
1614 bsrv->query = query;
1615 bsrv->resp = resp;
1616 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1617
1618 wpas_p2p_sd_service_update(wpa_s);
1619 return 0;
1620}
1621
1622
1623int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1624 const struct wpabuf *query)
1625{
1626 struct p2p_srv_bonjour *bsrv;
1627
1628 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1629 if (bsrv == NULL)
1630 return -1;
1631 wpas_p2p_srv_bonjour_free(bsrv);
1632 wpas_p2p_sd_service_update(wpa_s);
1633 return 0;
1634}
1635
1636
1637int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1638 const char *service)
1639{
1640 struct p2p_srv_upnp *usrv;
1641
1642 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1643 return 0; /* Already listed */
1644 usrv = os_zalloc(sizeof(*usrv));
1645 if (usrv == NULL)
1646 return -1;
1647 usrv->version = version;
1648 usrv->service = os_strdup(service);
1649 if (usrv->service == NULL) {
1650 os_free(usrv);
1651 return -1;
1652 }
1653 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1654
1655 wpas_p2p_sd_service_update(wpa_s);
1656 return 0;
1657}
1658
1659
1660int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1661 const char *service)
1662{
1663 struct p2p_srv_upnp *usrv;
1664
1665 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1666 if (usrv == NULL)
1667 return -1;
1668 wpas_p2p_srv_upnp_free(usrv);
1669 wpas_p2p_sd_service_update(wpa_s);
1670 return 0;
1671}
1672
1673
1674static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
bbeee9b0
JB		 1675 const u8 *peer, const char *params,
1676 unsigned int generated_pin)
b22128ef
JM		 1677{
1678 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
bbeee9b0 1679 MAC2STR(peer), generated_pin, params);
b22128ef
JM		 1680}
1681
1682
1683static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1684 const u8 *peer, const char *params)
1685{
1686 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1687 MAC2STR(peer), params);
1688}
1689
1690
1691void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1692 const u8 *dev_addr, const u8 *pri_dev_type,
1693 const char *dev_name, u16 supp_config_methods,
c3f42784
JM		 1694 u8 dev_capab, u8 group_capab, const u8 *group_id,
1695 size_t group_id_len)
b22128ef
JM		 1696{
1697 struct wpa_supplicant *wpa_s = ctx;
1698 char devtype[WPS_DEV_TYPE_BUFSIZE];
c3f42784 1699 char params[300];
b22128ef 1700 u8 empty_dev_type[8];
bbeee9b0 1701 unsigned int generated_pin = 0;
c3f42784
JM		 1702 struct wpa_supplicant *group = NULL;
1703
1704 if (group_id) {
1705 for (group = wpa_s->global->ifaces; group; group = group->next)
1706 {
1707 struct wpa_ssid *s = group->current_ssid;
1708 if (s != NULL &&
1709 s->mode == WPAS_MODE_P2P_GO &&
1710 group_id_len - ETH_ALEN == s->ssid_len &&
1711 os_memcmp(group_id + ETH_ALEN, s->ssid,
1712 s->ssid_len) == 0)
1713 break;
1714 }
1715 }
b22128ef
JM		 1716
1717 if (pri_dev_type == NULL) {
1718 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1719 pri_dev_type = empty_dev_type;
1720 }
1721 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1722 " pri_dev_type=%s name='%s' config_methods=0x%x "
c3f42784 1723 "dev_capab=0x%x group_capab=0x%x%s%s",
b22128ef
JM		 1724 MAC2STR(dev_addr),
1725 wps_dev_type_bin2str(pri_dev_type, devtype,
1726 sizeof(devtype)),
c3f42784
JM		 1727 dev_name, supp_config_methods, dev_capab, group_capab,
1728 group ? " group=" : "",
1729 group ? group->ifname : "");
b22128ef
JM		 1730 params[sizeof(params) - 1] = '\0';
1731
bbeee9b0
JB		 1732 if (config_methods & WPS_CONFIG_DISPLAY) {
1733 generated_pin = wps_generate_pin();
1734 wpas_prov_disc_local_display(wpa_s, peer, params,
1735 generated_pin);
1736 } else if (config_methods & WPS_CONFIG_KEYPAD)
b22128ef
JM		 1737 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1738 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1739 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1740 "%s", MAC2STR(peer), params);
dd8a7e05
JB		 1741
1742 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
1743 P2P_PROV_DISC_SUCCESS,
1744 config_methods, generated_pin);
b22128ef
JM		 1745}
1746
1747
1748void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1749{
1750 struct wpa_supplicant *wpa_s = ctx;
bbeee9b0
JB		 1751 unsigned int generated_pin = 0;
1752
b22128ef
JM		 1753 if (config_methods & WPS_CONFIG_DISPLAY)
1754 wpas_prov_disc_local_keypad(wpa_s, peer, "");
bbeee9b0
JB		 1755 else if (config_methods & WPS_CONFIG_KEYPAD) {
1756 generated_pin = wps_generate_pin();
1757 wpas_prov_disc_local_display(wpa_s, peer, "", generated_pin);
1758 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
b22128ef
JM		 1759 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1760 MAC2STR(peer));
a482883f 1761
dd8a7e05
JB		 1762 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1763 P2P_PROV_DISC_SUCCESS,
1764 config_methods, generated_pin);
1765
a482883f
JM		 1766 if (wpa_s->pending_pd_before_join &&
1767 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1768 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
1769 wpa_s->pending_pd_before_join = 0;
1770 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
1771 "join-existing-group operation");
1772 wpas_p2p_join_start(wpa_s);
1773 }
b22128ef
JM		 1774}
1775
1776
19df9b07
JM		 1777static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
1778 enum p2p_prov_disc_status status)
dd8a7e05
JB		 1779{
1780 struct wpa_supplicant *wpa_s = ctx;
1781
1782 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1783 status, 0, 0);
1784}
1785
1786
b22128ef
JM		 1787static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1788 const u8 *go_dev_addr, const u8 *ssid,
1789 size_t ssid_len, int *go, u8 *group_bssid,
1790 int *force_freq, int persistent_group)
1791{
1792 struct wpa_supplicant *wpa_s = ctx;
1793 struct wpa_ssid *s;
1794 u8 cur_bssid[ETH_ALEN];
1795 int res;
ab72eb52 1796 struct wpa_supplicant *grp;
b22128ef
JM		 1797
1798 if (!persistent_group) {
1799 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1800 " to join an active group", MAC2STR(sa));
108def93 1801 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
131cb37c
JM		 1802 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
1803 == 0 ||
1804 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
108def93
JM		 1805 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
1806 "authorized invitation");
1807 goto accept_inv;
1808 }
b22128ef
JM		 1809 /*
1810 * Do not accept the invitation automatically; notify user and
1811 * request approval.
1812 */
1813 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1814 }
1815
ab72eb52
JM		 1816 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
1817 if (grp) {
1818 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
1819 "running persistent group");
1820 if (*go)
1821 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
1822 goto accept_inv;
1823 }
1824
b22128ef
JM		 1825 if (!wpa_s->conf->persistent_reconnect)
1826 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1827
1828 for (s = wpa_s->conf->ssid; s; s = s->next) {
1829 if (s->disabled == 2 &&
1830 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
1831 s->ssid_len == ssid_len &&
1832 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1833 break;
1834 }
1835
1836 if (!s) {
1837 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1838 " requested reinvocation of an unknown group",
1839 MAC2STR(sa));
1840 return P2P_SC_FAIL_UNKNOWN_GROUP;
1841 }
1842
1843 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
1844 *go = 1;
1845 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1846 wpa_printf(MSG_DEBUG, "P2P: The only available "
1847 "interface is already in use - reject "
1848 "invitation");
1849 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1850 }
1851 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
1852 } else if (s->mode == WPAS_MODE_P2P_GO) {
1853 *go = 1;
1854 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
1855 {
1856 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
1857 "interface address for the group");
1858 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1859 }
1860 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
1861 ETH_ALEN);
1862 }
1863
108def93 1864accept_inv:
b22128ef
JM		 1865 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
1866 wpa_s->assoc_freq) {
1867 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1868 "the channel we are already using");
1869 *force_freq = wpa_s->assoc_freq;
1870 }
1871
1872 res = wpa_drv_shared_freq(wpa_s);
1873 if (res > 0) {
1874 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1875 "with the channel we are already using on a "
1876 "shared interface");
1877 *force_freq = res;
1878 }
1879
1880 return P2P_SC_SUCCESS;
1881}
1882
1883
1884static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
1885 const u8 *ssid, size_t ssid_len,
1886 const u8 *go_dev_addr, u8 status,
1887 int op_freq)
1888{
1889 struct wpa_supplicant *wpa_s = ctx;
1890 struct wpa_ssid *s;
1891
1892 for (s = wpa_s->conf->ssid; s; s = s->next) {
1893 if (s->disabled == 2 &&
1894 s->ssid_len == ssid_len &&
1895 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1896 break;
1897 }
1898
1899 if (status == P2P_SC_SUCCESS) {
1900 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1901 " was accepted; op_freq=%d MHz",
1902 MAC2STR(sa), op_freq);
1903 if (s) {
1904 wpas_p2p_group_add_persistent(
1905 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
2049af2b 1906 } else if (bssid) {
108def93
JM		 1907 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
1908 wpa_s->p2p_wps_method);
b22128ef
JM		 1909 }
1910 return;
1911 }
1912
1913 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
1914 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1915 " was rejected (status %u)", MAC2STR(sa), status);
1916 return;
1917 }
1918
1919 if (!s) {
1920 if (bssid) {
1921 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1922 "sa=" MACSTR " go_dev_addr=" MACSTR
1923 " bssid=" MACSTR " unknown-network",
1924 MAC2STR(sa), MAC2STR(go_dev_addr),
1925 MAC2STR(bssid));
1926 } else {
1927 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1928 "sa=" MACSTR " go_dev_addr=" MACSTR
1929 " unknown-network",
1930 MAC2STR(sa), MAC2STR(go_dev_addr));
1931 }
1932 return;
1933 }
1934
1935 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
1936 " persistent=%d", MAC2STR(sa), s->id);
1937}
1938
1939
1940static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
1941{
1942 struct wpa_supplicant *wpa_s = ctx;
1943 struct wpa_ssid *ssid;
1944
1945 if (bssid) {
1946 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1947 "status=%d " MACSTR,
1948 status, MAC2STR(bssid));
1949 } else {
1950 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1951 "status=%d ", status);
1952 }
5ccdf84f 1953 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
b22128ef 1954
706887fc
JM		 1955 if (wpa_s->pending_invite_ssid_id == -1)
1956 return; /* Invitation to active group */
1957
b22128ef
JM		 1958 if (status != P2P_SC_SUCCESS) {
1959 wpas_p2p_remove_pending_group_interface(wpa_s);
1960 return;
1961 }
1962
1963 ssid = wpa_config_get_network(wpa_s->conf,
1964 wpa_s->pending_invite_ssid_id);
1965 if (ssid == NULL) {
1966 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
1967 "data matching with invitation");
1968 return;
1969 }
1970
1971 wpas_p2p_group_add_persistent(wpa_s, ssid,
1972 ssid->mode == WPAS_MODE_P2P_GO, 0);
1973}
1974
1975
ac8d1011
JM		 1976static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
1977 struct p2p_channels *chan)
1978{
1979 int i, cla = 0;
1980
1981 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
1982 "band");
1983
1984 /* Operating class 81 - 2.4 GHz band channels 1..13 */
1985 chan->reg_class[cla].reg_class = 81;
1986 chan->reg_class[cla].channels = 11;
1987 for (i = 0; i < 11; i++)
1988 chan->reg_class[cla].channel[i] = i + 1;
1989 cla++;
1990
1991 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
1992 "band");
1993
1994 /* Operating class 115 - 5 GHz, channels 36-48 */
1995 chan->reg_class[cla].reg_class = 115;
1996 chan->reg_class[cla].channels = 4;
1997 chan->reg_class[cla].channel[0] = 36;
1998 chan->reg_class[cla].channel[1] = 40;
1999 chan->reg_class[cla].channel[2] = 44;
2000 chan->reg_class[cla].channel[3] = 48;
2001 cla++;
2002
2003 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2004 "band");
2005
2006 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2007 chan->reg_class[cla].reg_class = 124;
2008 chan->reg_class[cla].channels = 4;
2009 chan->reg_class[cla].channel[0] = 149;
2010 chan->reg_class[cla].channel[1] = 153;
2011 chan->reg_class[cla].channel[2] = 157;
2012 chan->reg_class[cla].channel[3] = 161;
2013 cla++;
2014
2015 chan->reg_classes = cla;
2016 return 0;
2017}
2018
2019
2020static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2021 u16 num_modes,
2022 enum hostapd_hw_mode mode)
2023{
2024 u16 i;
2025
2026 for (i = 0; i < num_modes; i++) {
2027 if (modes[i].mode == mode)
2028 return &modes[i];
2029 }
2030
2031 return NULL;
2032}
2033
2034
51222429 2035static int has_channel(struct hostapd_hw_modes *mode, u8 chan, int *flags)
ac8d1011
JM		 2036{
2037 int i;
2038
2039 for (i = 0; i < mode->num_channels; i++) {
2040 if (mode->channels[i].chan == chan) {
51222429
JM		 2041 if (flags)
2042 *flags = mode->channels[i].flag;
ac8d1011
JM		 2043 return !(mode->channels[i].flag &
2044 (HOSTAPD_CHAN_DISABLED |
2045 HOSTAPD_CHAN_PASSIVE_SCAN |
2046 HOSTAPD_CHAN_NO_IBSS |
2047 HOSTAPD_CHAN_RADAR));
2048 }
2049 }
2050
2051 return 0;
2052}
2053
2054
2055struct p2p_oper_class_map {
2056 enum hostapd_hw_mode mode;
2057 u8 op_class;
2058 u8 min_chan;
2059 u8 max_chan;
2060 u8 inc;
51222429 2061 enum { BW20, BW40PLUS, BW40MINUS } bw;
ac8d1011
JM		 2062};
2063
b22128ef 2064static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
ac8d1011 2065 struct p2p_channels *chan)
b22128ef 2066{
6bf731e8 2067 struct hostapd_hw_modes *mode;
ac8d1011
JM		 2068 int cla, op;
2069 struct p2p_oper_class_map op_class[] = {
51222429
JM		 2070 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2071 { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 },
2072#if 0 /* Do not enable HT40 on 2 GHz for now */
2073 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2074 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
ac8d1011 2075#endif
51222429
JM		 2076 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2077 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2078 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2079 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2080 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2081 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2082 { -1, 0, 0, 0, 0, BW20 }
ac8d1011 2083 };
b22128ef 2084
6bf731e8 2085 if (wpa_s->hw.modes == NULL) {
b22128ef
JM		 2086 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2087 "of all supported channels; assume dualband "
2088 "support");
ac8d1011 2089 return wpas_p2p_default_channels(wpa_s, chan);
b22128ef
JM		 2090 }
2091
2092 cla = 0;
2093
ac8d1011
JM		 2094 for (op = 0; op_class[op].op_class; op++) {
2095 struct p2p_oper_class_map *o = &op_class[op];
2096 u8 ch;
2097 struct p2p_reg_class *reg = NULL;
b22128ef 2098
6bf731e8 2099 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
ac8d1011
JM		 2100 if (mode == NULL)
2101 continue;
2102 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
51222429
JM		 2103 int flag;
2104 if (!has_channel(mode, ch, &flag))
2105 continue;
2106 if (o->bw == BW40MINUS &&
2107 (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
5254eb7e 2108 !has_channel(mode, ch - 4, NULL)))
51222429
JM		 2109 continue;
2110 if (o->bw == BW40PLUS &&
2111 (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
5254eb7e 2112 !has_channel(mode, ch + 4, NULL)))
ac8d1011
JM		 2113 continue;
2114 if (reg == NULL) {
2115 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2116 "class %u", o->op_class);
2117 reg = &chan->reg_class[cla];
2118 cla++;
2119 reg->reg_class = o->op_class;
2120 }
2121 reg->channel[reg->channels] = ch;
2122 reg->channels++;
2123 }
2124 if (reg) {
2125 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2126 reg->channel, reg->channels);
2127 }
b22128ef
JM		 2128 }
2129
ac8d1011 2130 chan->reg_classes = cla;
b22128ef 2131
b22128ef
JM		 2132 return 0;
2133}
2134
2135
2136static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2137 size_t buf_len)
2138{
2139 struct wpa_supplicant *wpa_s = ctx;
2140
2141 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2142 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2143 break;
2144 }
2145 if (wpa_s == NULL)
2146 return -1;
2147
2148 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2149}
2150
2151
2152/**
2153 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2154 * @global: Pointer to global data from wpa_supplicant_init()
2155 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2156 * Returns: 0 on success, -1 on failure
2157 */
2158int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2159{
2160 struct p2p_config p2p;
2161 unsigned int r;
f95cac27 2162 int i;
b22128ef
JM		 2163
2164 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2165 return 0;
2166
b22128ef
JM		 2167 if (global->p2p)
2168 return 0;
2169
3ac17eba
JM		 2170 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2171 struct p2p_params params;
2172
2173 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2174 os_memset(&params, 0, sizeof(params));
2175 params.dev_name = wpa_s->conf->device_name;
2f646b6e
JB		 2176 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2177 WPS_DEV_TYPE_LEN);
2178 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2179 os_memcpy(params.sec_dev_type,
2180 wpa_s->conf->sec_device_type,
2181 params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2182
3ac17eba
JM		 2183 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
2184 return -1;
2185
2186 return 0;
2187 }
2188
b22128ef
JM		 2189 os_memset(&p2p, 0, sizeof(p2p));
2190 p2p.msg_ctx = wpa_s;
2191 p2p.cb_ctx = wpa_s;
2192 p2p.p2p_scan = wpas_p2p_scan;
2193 p2p.send_action = wpas_send_action;
2194 p2p.send_action_done = wpas_send_action_done;
2195 p2p.go_neg_completed = wpas_go_neg_completed;
2196 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2197 p2p.dev_found = wpas_dev_found;
56eeb8f2 2198 p2p.dev_lost = wpas_dev_lost;
b22128ef
JM		 2199 p2p.start_listen = wpas_start_listen;
2200 p2p.stop_listen = wpas_stop_listen;
2201 p2p.send_probe_resp = wpas_send_probe_resp;
2202 p2p.sd_request = wpas_sd_request;
2203 p2p.sd_response = wpas_sd_response;
2204 p2p.prov_disc_req = wpas_prov_disc_req;
2205 p2p.prov_disc_resp = wpas_prov_disc_resp;
dd8a7e05 2206 p2p.prov_disc_fail = wpas_prov_disc_fail;
b22128ef
JM		 2207 p2p.invitation_process = wpas_invitation_process;
2208 p2p.invitation_received = wpas_invitation_received;
2209 p2p.invitation_result = wpas_invitation_result;
2210 p2p.get_noa = wpas_get_noa;
2211
2212 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2213 os_memcpy(p2p.dev_addr, wpa_s->own_addr, ETH_ALEN);
2214 p2p.dev_name = wpa_s->conf->device_name;
b6e01800
JM		 2215 p2p.manufacturer = wpa_s->conf->manufacturer;
2216 p2p.model_name = wpa_s->conf->model_name;
2217 p2p.model_number = wpa_s->conf->model_number;
2218 p2p.serial_number = wpa_s->conf->serial_number;
2219 if (wpa_s->wps) {
2220 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2221 p2p.config_methods = wpa_s->wps->config_methods;
2222 }
b22128ef
JM		 2223
2224 if (wpa_s->conf->p2p_listen_reg_class &&
2225 wpa_s->conf->p2p_listen_channel) {
2226 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2227 p2p.channel = wpa_s->conf->p2p_listen_channel;
2228 } else {
2229 p2p.reg_class = 81;
2230 /*
2231 * Pick one of the social channels randomly as the listen
2232 * channel.
2233 */
2234 os_get_random((u8 *) &r, sizeof(r));
2235 p2p.channel = 1 + (r % 3) * 5;
2236 }
7cfc4ac3 2237 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
b22128ef
JM		 2238
2239 if (wpa_s->conf->p2p_oper_reg_class &&
2240 wpa_s->conf->p2p_oper_channel) {
2241 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2242 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 2243 p2p.cfg_op_channel = 1;
2244 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2245 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2246
b22128ef
JM		 2247 } else {
2248 p2p.op_reg_class = 81;
2249 /*
7cfc4ac3
AGS		 2250 * Use random operation channel from (1, 6, 11) if no other
2251 * preference is indicated.
b22128ef 2252 */
b7412dab 2253 os_get_random((u8 *) &r, sizeof(r));
7cfc4ac3
AGS		 2254 p2p.op_channel = 1 + (r % 3) * 5;
2255 p2p.cfg_op_channel = 0;
2256 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2257 "%d:%d", p2p.op_reg_class, p2p.op_channel);
b22128ef 2258 }
b22128ef
JM		 2259 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2260 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2261 p2p.country[2] = 0x04;
2262 } else
aaca6505 2263 os_memcpy(p2p.country, "XX\x04", 3);
b22128ef 2264
ac8d1011 2265 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
b22128ef
JM		 2266 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2267 "channel list");
2268 return -1;
2269 }
2270
2f646b6e
JB		 2271 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2272 WPS_DEV_TYPE_LEN);
b22128ef 2273
2f646b6e
JB		 2274 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2275 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2276 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
b22128ef
JM		 2277
2278 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2279 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2280
de979d8f 2281 p2p.max_peers = 100;
b22128ef
JM		 2282
2283 if (wpa_s->conf->p2p_ssid_postfix) {
2284 p2p.ssid_postfix_len =
2285 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2286 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2287 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2288 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2289 p2p.ssid_postfix_len);
2290 }
2291
0f66abd2
SS		 2292 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2293
b22128ef
JM		 2294 global->p2p = p2p_init(&p2p);
2295 if (global->p2p == NULL)
2296 return -1;
2297
f95cac27
JMB		 2298 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2299 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2300 continue;
2301 p2p_add_wps_vendor_extension(
2302 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2303 }
2304
b22128ef
JM		 2305 return 0;
2306}
2307
2308
2309/**
2310 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2311 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2312 *
2313 * This function deinitialize per-interface P2P data.
2314 */
2315void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2316{
2317 if (wpa_s->driver && wpa_s->drv_priv)
2318 wpa_drv_probe_req_report(wpa_s, 0);
ec437d9e
JJ		 2319
2320 if (wpa_s->go_params) {
2321 /* Clear any stored provisioning info */
2322 p2p_clear_provisioning_info(
2323 wpa_s->global->p2p,
2324 wpa_s->go_params->peer_interface_addr);
2325 }
2326
b22128ef
JM		 2327 os_free(wpa_s->go_params);
2328 wpa_s->go_params = NULL;
b22128ef 2329 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 2330 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 2331 wpa_s->p2p_long_listen = 0;
2332 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3071e181 2333 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
b22128ef
JM		 2334 wpas_p2p_remove_pending_group_interface(wpa_s);
2335
2336 /* TODO: remove group interface from the driver if this wpa_s instance
2337 * is on top of a P2P group interface */
2338}
2339
2340
2341/**
2342 * wpas_p2p_deinit_global - Deinitialize global P2P module
2343 * @global: Pointer to global data from wpa_supplicant_init()
2344 *
2345 * This function deinitializes the global (per device) P2P module.
2346 */
2347void wpas_p2p_deinit_global(struct wpa_global *global)
2348{
2349 struct wpa_supplicant *wpa_s, *tmp;
2350 char *ifname;
2351
2352 if (global->p2p == NULL)
2353 return;
2354
2355 /* Remove remaining P2P group interfaces */
2356 wpa_s = global->ifaces;
2a43101e
JM		 2357 if (wpa_s)
2358 wpas_p2p_service_flush(wpa_s);
b22128ef
JM		 2359 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2360 wpa_s = wpa_s->next;
2361 while (wpa_s) {
2362 enum wpa_driver_if_type type;
2363 tmp = global->ifaces;
2364 while (tmp &&
2365 (tmp == wpa_s ||
2366 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2367 tmp = tmp->next;
2368 }
2369 if (tmp == NULL)
2370 break;
2371 ifname = os_strdup(tmp->ifname);
2372 type = wpas_p2p_if_type(tmp->p2p_group_interface);
2373 wpa_supplicant_remove_iface(global, tmp);
2374 if (ifname)
2375 wpa_drv_if_remove(wpa_s, type, ifname);
2376 os_free(ifname);
2377 }
2378
743ef799
JM		 2379 /*
2380 * Deinit GO data on any possibly remaining interface (if main
2381 * interface is used as GO).
2382 */
2383 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2384 if (wpa_s->ap_iface)
2385 wpas_p2p_group_deinit(wpa_s);
2386 }
2387
b22128ef
JM		 2388 p2p_deinit(global->p2p);
2389 global->p2p = NULL;
2390}
2391
2392
2393static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2394{
971e357f
JM		 2395 if (wpa_s->drv_flags &
2396 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2397 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
b22128ef
JM		 2398 return 1; /* P2P group requires a new interface in every case
2399 */
2400 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2401 return 0; /* driver does not support concurrent operations */
2402 if (wpa_s->global->ifaces->next)
2403 return 1; /* more that one interface already in use */
2404 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2405 return 1; /* this interface is already in use */
2406 return 0;
2407}
2408
2409
2410static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2411 const u8 *peer_addr,
2412 enum p2p_wps_method wps_method,
2413 int go_intent, const u8 *own_interface_addr,
2414 unsigned int force_freq, int persistent_group)
2415{
acc247b2
JM		 2416 if (persistent_group && wpa_s->conf->persistent_reconnect)
2417 persistent_group = 2;
2418
3ac17eba
JM		 2419 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2420 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2421 go_intent, own_interface_addr,
2422 force_freq, persistent_group);
2423 }
2424
b22128ef
JM		 2425 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2426 go_intent, own_interface_addr, force_freq,
2427 persistent_group);
2428}
2429
2430
2431static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2432 const u8 *peer_addr,
2433 enum p2p_wps_method wps_method,
2434 int go_intent, const u8 *own_interface_addr,
2435 unsigned int force_freq, int persistent_group)
2436{
acc247b2
JM		 2437 if (persistent_group && wpa_s->conf->persistent_reconnect)
2438 persistent_group = 2;
2439
3ac17eba
JM		 2440 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2441 return -1;
2442
b22128ef
JM		 2443 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2444 go_intent, own_interface_addr, force_freq,
2445 persistent_group);
2446}
2447
2448
9b1ab931
JM		 2449static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
2450{
2451 wpa_s->p2p_join_scan_count++;
2452 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
2453 wpa_s->p2p_join_scan_count);
2454 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
2455 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
2456 " for join operationg - stop join attempt",
2457 MAC2STR(wpa_s->pending_join_iface_addr));
2458 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2459 wpa_msg(wpa_s->parent, MSG_INFO,
2460 P2P_EVENT_GROUP_FORMATION_FAILURE);
2461 }
2462}
2463
2464
ef922c4a
JM		 2465static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2466 struct wpa_scan_results *scan_res)
b22128ef
JM		 2467{
2468 struct wpa_bss *bss;
f8d0131a 2469 int freq;
54960629 2470 u8 iface_addr[ETH_ALEN];
b22128ef 2471
ef922c4a 2472 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 2473
ef922c4a
JM		 2474 if (wpa_s->global->p2p_disabled)
2475 return;
b22128ef 2476
ef922c4a
JM		 2477 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2478 scan_res ? (int) scan_res->num : -1);
2479
2480 if (scan_res)
2481 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 2482
f8d0131a
JM		 2483 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2484 wpa_s->pending_join_iface_addr);
54960629
AL		 2485 if (freq < 0 &&
2486 p2p_get_interface_addr(wpa_s->global->p2p,
2487 wpa_s->pending_join_dev_addr,
2488 iface_addr) == 0 &&
2489 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
2490 {
2491 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
2492 "address for join from " MACSTR " to " MACSTR
2493 " based on newly discovered P2P peer entry",
2494 MAC2STR(wpa_s->pending_join_iface_addr),
2495 MAC2STR(iface_addr));
2496 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
2497 ETH_ALEN);
2498
2499 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2500 wpa_s->pending_join_iface_addr);
2501 }
f8d0131a
JM		 2502 if (freq >= 0) {
2503 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2504 "from P2P peer table: %d MHz", freq);
2505 }
ef922c4a 2506 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
b22128ef 2507 if (bss) {
f8d0131a
JM		 2508 freq = bss->freq;
2509 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2510 "from BSS table: %d MHz", freq);
2511 }
2512 if (freq > 0) {
b22128ef
JM		 2513 u16 method;
2514
2515 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2516 "prior to joining an existing group (GO " MACSTR
2517 " freq=%u MHz)",
f8d0131a 2518 MAC2STR(wpa_s->pending_join_dev_addr), freq);
b22128ef
JM		 2519 wpa_s->pending_pd_before_join = 1;
2520
ef922c4a 2521 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 2522 case WPS_PIN_DISPLAY:
2523 method = WPS_CONFIG_KEYPAD;
2524 break;
2525 case WPS_PIN_KEYPAD:
2526 method = WPS_CONFIG_DISPLAY;
2527 break;
2528 case WPS_PBC:
2529 method = WPS_CONFIG_PUSHBUTTON;
2530 break;
2531 default:
2532 method = 0;
2533 break;
2534 }
2535
ec437d9e
JJ		 2536 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
2537 wpa_s->pending_join_dev_addr) ==
2538 method)) {
2539 /*
2540 * We have already performed provision discovery for
2541 * joining the group. Proceed directly to join
2542 * operation without duplicated provision discovery. */
e3a0706b 2543 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
ec437d9e
JJ		 2544 "with " MACSTR " already done - proceed to "
2545 "join",
2546 MAC2STR(wpa_s->pending_join_dev_addr));
2547 wpa_s->pending_pd_before_join = 0;
2548 goto start;
2549 }
2550
ef922c4a
JM		 2551 if (p2p_prov_disc_req(wpa_s->global->p2p,
2552 wpa_s->pending_join_dev_addr, method, 1)
b22128ef
JM		 2553 < 0) {
2554 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2555 "Discovery Request before joining an "
2556 "existing group");
2557 wpa_s->pending_pd_before_join = 0;
2558 goto start;
2559 }
2560
2561 /*
2562 * Actual join operation will be started from the Action frame
2563 * TX status callback.
2564 */
ef922c4a 2565 return;
b22128ef
JM		 2566 }
2567
9b1ab931
JM		 2568 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
2569 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2570 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2571 wpas_p2p_check_join_scan_limit(wpa_s);
2572 return;
b22128ef
JM		 2573
2574start:
2575 /* Start join operation immediately */
ef922c4a
JM		 2576 wpas_p2p_join_start(wpa_s);
2577}
2578
2579
2580static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2581{
2582 struct wpa_supplicant *wpa_s = eloop_ctx;
2583 int ret;
2584 struct wpa_driver_scan_params params;
2585 struct wpabuf *wps_ie, *ies;
206e1f42 2586 size_t ielen;
ef922c4a
JM		 2587
2588 os_memset(&params, 0, sizeof(params));
2589
2590 /* P2P Wildcard SSID */
2591 params.num_ssids = 1;
2592 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2593 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2594
2595 wpa_s->wps->dev.p2p = 1;
2596 wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
046ef4aa 2597 WPS_REQ_ENROLLEE, 0, NULL);
ef922c4a
JM		 2598 if (wps_ie == NULL) {
2599 wpas_p2p_scan_res_join(wpa_s, NULL);
2600 return;
2601 }
2602
206e1f42
JM		 2603 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
2604 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
ef922c4a
JM		 2605 if (ies == NULL) {
2606 wpabuf_free(wps_ie);
2607 wpas_p2p_scan_res_join(wpa_s, NULL);
2608 return;
2609 }
2610 wpabuf_put_buf(ies, wps_ie);
2611 wpabuf_free(wps_ie);
2612
2613 p2p_scan_ie(wpa_s->global->p2p, ies);
2614
47185fc7 2615 params.p2p_probe = 1;
ef922c4a
JM		 2616 params.extra_ies = wpabuf_head(ies);
2617 params.extra_ies_len = wpabuf_len(ies);
2618
2619 /*
2620 * Run a scan to update BSS table and start Provision Discovery once
2621 * the new scan results become available.
2622 */
2623 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
17fbb751 2624 ret = wpa_drv_scan(wpa_s, &params);
ef922c4a
JM		 2625
2626 wpabuf_free(ies);
2627
2628 if (ret) {
2629 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2630 "try again later");
2631 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2632 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
9b1ab931 2633 wpas_p2p_check_join_scan_limit(wpa_s);
ef922c4a
JM		 2634 }
2635}
2636
2637
2638static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2639 const u8 *dev_addr, enum p2p_wps_method wps_method)
2640{
2641 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2642 MACSTR " dev " MACSTR ")",
2643 MAC2STR(iface_addr), MAC2STR(dev_addr));
2644
2645 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2646 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2647 wpa_s->pending_join_wps_method = wps_method;
2648
2649 /* Make sure we are not running find during connection establishment */
2650 wpas_p2p_stop_find(wpa_s);
2651
9b1ab931 2652 wpa_s->p2p_join_scan_count = 0;
ef922c4a
JM		 2653 wpas_p2p_join_scan(wpa_s, NULL);
2654 return 0;
b22128ef
JM		 2655}
2656
2657
2658static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2659{
2660 struct wpa_supplicant *group;
2661 struct p2p_go_neg_results res;
2662
2663 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2664 if (group == NULL)
2665 return -1;
3c5126a4 2666 if (group != wpa_s) {
b22128ef
JM		 2667 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2668 sizeof(group->p2p_pin));
3c5126a4
JM		 2669 group->p2p_wps_method = wpa_s->p2p_wps_method;
2670 }
b22128ef
JM		 2671
2672 group->p2p_in_provisioning = 1;
2673
2674 os_memset(&res, 0, sizeof(res));
2675 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2676 ETH_ALEN);
2677 res.wps_method = wpa_s->pending_join_wps_method;
2678 wpas_start_wps_enrollee(group, &res);
2679
3094d483
JM		 2680 /*
2681 * Allow a longer timeout for join-a-running-group than normal 15
2682 * second group formation timeout since the GO may not have authorized
2683 * our connection yet.
2684 */
2685 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2686 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
2687 wpa_s, NULL);
2688
b22128ef
JM		 2689 return 0;
2690}
2691
2692
2693/**
2694 * wpas_p2p_connect - Request P2P Group Formation to be started
2695 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2696 * @peer_addr: Address of the peer P2P Device
2697 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2698 * @persistent_group: Whether to create a persistent group
2699 * @join: Whether to join an existing group (as a client) instead of starting
2700 * Group Owner negotiation; @peer_addr is BSSID in that case
2701 * @auth: Whether to only authorize the connection instead of doing that and
2702 * initiating Group Owner negotiation
2703 * @go_intent: GO Intent or -1 to use default
2704 * @freq: Frequency for the group or 0 for auto-selection
d054a462
JM		 2705 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
2706 * failure, -2 on failure due to channel not currently available,
2707 * -3 if forced channel is not supported
b22128ef
JM		 2708 */
2709int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2710 const char *pin, enum p2p_wps_method wps_method,
2711 int persistent_group, int join, int auth, int go_intent,
2712 int freq)
2713{
d054a462 2714 int force_freq = 0, oper_freq = 0;
b22128ef
JM		 2715 u8 bssid[ETH_ALEN];
2716 int ret = 0;
2717 enum wpa_driver_if_type iftype;
6cad95db 2718 const u8 *if_addr;
b22128ef 2719
9526fd29
JM		 2720 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2721 return -1;
2722
b22128ef
JM		 2723 if (go_intent < 0)
2724 go_intent = wpa_s->conf->p2p_go_intent;
2725
2726 if (!auth)
2727 wpa_s->p2p_long_listen = 0;
2728
3c5126a4
JM		 2729 wpa_s->p2p_wps_method = wps_method;
2730
b22128ef
JM		 2731 if (pin)
2732 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2733 else if (wps_method == WPS_PIN_DISPLAY) {
2734 ret = wps_generate_pin();
2735 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2736 ret);
2737 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2738 wpa_s->p2p_pin);
2739 } else
2740 wpa_s->p2p_pin[0] = '\0';
2741
2742 if (join) {
4147a2cc 2743 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
108def93
JM		 2744 if (auth) {
2745 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2746 "connect a running group from " MACSTR,
2747 MAC2STR(peer_addr));
2748 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2749 return ret;
2750 }
4147a2cc 2751 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
b22128ef 2752 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4147a2cc 2753 iface_addr) < 0) {
b22128ef 2754 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4147a2cc
JM		 2755 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
2756 dev_addr);
2757 }
2758 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) <
b22128ef
JM		 2759 0)
2760 return -1;
2761 return ret;
2762 }
2763
d054a462
JM		 2764 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2765 wpa_s->assoc_freq)
2766 oper_freq = wpa_s->assoc_freq;
b22128ef 2767 else {
d054a462
JM		 2768 oper_freq = wpa_drv_shared_freq(wpa_s);
2769 if (oper_freq < 0)
2770 oper_freq = 0;
b22128ef
JM		 2771 }
2772
d054a462
JM		 2773 if (freq > 0) {
2774 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
2775 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
2776 "(%u MHz) is not supported for P2P uses",
2777 freq);
2778 return -3;
2779 }
2780
2781 if (oper_freq > 0 && freq != oper_freq &&
2782 !(wpa_s->drv_flags &
2783 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2784 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2785 "on %u MHz while connected on another "
2786 "channel (%u MHz)", freq, oper_freq);
2787 return -2;
2788 }
2789 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2790 "requested channel (%u MHz)", freq);
2791 force_freq = freq;
2792 } else if (oper_freq > 0 &&
2793 !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
2794 if (!(wpa_s->drv_flags &
2795 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2796 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2797 "while connected on non-P2P supported "
2798 "channel (%u MHz)", oper_freq);
2799 return -2;
2800 }
2801 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
2802 "(%u MHz) not available for P2P - try to use "
2803 "another channel", oper_freq);
2804 force_freq = 0;
2805 } else if (oper_freq > 0) {
b22128ef
JM		 2806 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2807 "channel we are already using (%u MHz) on another "
d054a462
JM		 2808 "interface", oper_freq);
2809 force_freq = oper_freq;
b22128ef
JM		 2810 }
2811
2812 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
2813
6cad95db
JB		 2814 if (wpa_s->create_p2p_iface) {
2815 /* Prepare to add a new interface for the group */
2816 iftype = WPA_IF_P2P_GROUP;
2817 if (go_intent == 15)
2818 iftype = WPA_IF_P2P_GO;
2819 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
2820 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2821 "interface for the group");
b22128ef 2822 return -1;
6cad95db 2823 }
b22128ef 2824
6cad95db
JB		 2825 if_addr = wpa_s->pending_interface_addr;
2826 } else
2827 if_addr = wpa_s->own_addr;
b22128ef
JM		 2828
2829 if (auth) {
2830 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
6cad95db 2831 go_intent, if_addr,
b22128ef
JM		 2832 force_freq, persistent_group) < 0)
2833 return -1;
2834 return ret;
2835 }
6cad95db
JB		 2836
2837 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
2838 go_intent, if_addr, force_freq,
2839 persistent_group) < 0) {
2840 if (wpa_s->create_p2p_iface)
2841 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 2842 return -1;
2843 }
2844 return ret;
2845}
2846
2847
2848/**
2849 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
2850 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2851 * @freq: Frequency of the channel in MHz
2852 * @duration: Duration of the stay on the channel in milliseconds
2853 *
2854 * This callback is called when the driver indicates that it has started the
2855 * requested remain-on-channel duration.
2856 */
2857void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2858 unsigned int freq, unsigned int duration)
2859{
9526fd29
JM		 2860 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2861 return;
b22128ef
JM		 2862 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
2863 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
2864 wpa_s->pending_listen_duration);
2865 wpa_s->pending_listen_freq = 0;
2866 }
2867}
2868
2869
2870static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
2871 unsigned int timeout)
2872{
2873 /* Limit maximum Listen state time based on driver limitation. */
2874 if (timeout > wpa_s->max_remain_on_chan)
2875 timeout = wpa_s->max_remain_on_chan;
2876
3ac17eba
JM		 2877 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2878 return wpa_drv_p2p_listen(wpa_s, timeout);
2879
b22128ef
JM		 2880 return p2p_listen(wpa_s->global->p2p, timeout);
2881}
2882
2883
2884/**
2885 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
2886 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2887 * @freq: Frequency of the channel in MHz
2888 *
2889 * This callback is called when the driver indicates that a remain-on-channel
2890 * operation has been completed, i.e., the duration on the requested channel
2891 * has timed out.
2892 */
2893void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2894 unsigned int freq)
2895{
1cc3a29d 2896 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
11fb02be 2897 "(p2p_long_listen=%d ms pending_action_tx=%p)",
1cc3a29d 2898 wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
9526fd29
JM		 2899 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2900 return;
b22128ef
JM		 2901 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
2902 return; /* P2P module started a new operation */
2903 if (wpa_s->pending_action_tx)
2904 return;
2905 if (wpa_s->p2p_long_listen > 0)
11fb02be 2906 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
b22128ef
JM		 2907 if (wpa_s->p2p_long_listen > 0) {
2908 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
11fb02be 2909 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
b22128ef
JM		 2910 }
2911}
2912
2913
2914/**
2915 * wpas_p2p_group_remove - Remove a P2P group
2916 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2917 * @ifname: Network interface name of the group interface or "*" to remove all
2918 * groups
2919 * Returns: 0 on success, -1 on failure
2920 *
2921 * This function is used to remove a P2P group. This can be used to disconnect
2922 * from a group in which the local end is a P2P Client or to end a P2P Group in
2923 * case the local end is the Group Owner. If a virtual network interface was
2924 * created for this group, that interface will be removed. Otherwise, only the
2925 * configured P2P group network will be removed from the interface.
2926 */
2927int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
2928{
2929 struct wpa_global *global = wpa_s->global;
2930
2931 if (os_strcmp(ifname, "*") == 0) {
2932 struct wpa_supplicant *prev;
2933 wpa_s = global->ifaces;
2934 while (wpa_s) {
2935 prev = wpa_s;
2936 wpa_s = wpa_s->next;
3103f345 2937 wpas_p2p_disconnect(prev);
b22128ef
JM		 2938 }
2939 return 0;
2940 }
2941
2942 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2943 if (os_strcmp(wpa_s->ifname, ifname) == 0)
2944 break;
2945 }
2946
3103f345 2947 return wpas_p2p_disconnect(wpa_s);
b22128ef
JM		 2948}
2949
2950
2951static void wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
2952 struct p2p_go_neg_results *params,
2953 int freq)
2954{
2955 u8 bssid[ETH_ALEN];
2956 int res;
2957
2958 os_memset(params, 0, sizeof(*params));
2959 params->role_go = 1;
7cfc4ac3
AGS		 2960 if (freq) {
2961 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
2962 "frequency %d MHz", freq);
b22128ef 2963 params->freq = freq;
7cfc4ac3
AGS		 2964 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
2965 wpa_s->conf->p2p_oper_channel >= 1 &&
2966 wpa_s->conf->p2p_oper_channel <= 11) {
b22128ef 2967 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 2968 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
2969 "frequency %d MHz", params->freq);
2970 } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
64f99265 2971 wpa_s->conf->p2p_oper_reg_class == 124) {
b22128ef 2972 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 2973 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
2974 "frequency %d MHz", params->freq);
2975 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
2976 wpa_s->best_overall_freq > 0 &&
2977 p2p_supported_freq(wpa_s->global->p2p,
2978 wpa_s->best_overall_freq)) {
2979 params->freq = wpa_s->best_overall_freq;
2980 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
2981 "channel %d MHz", params->freq);
2982 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
2983 wpa_s->best_24_freq > 0 &&
2984 p2p_supported_freq(wpa_s->global->p2p,
2985 wpa_s->best_24_freq)) {
2986 params->freq = wpa_s->best_24_freq;
2987 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
2988 "channel %d MHz", params->freq);
2989 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
2990 wpa_s->best_5_freq > 0 &&
2991 p2p_supported_freq(wpa_s->global->p2p,
2992 wpa_s->best_5_freq)) {
2993 params->freq = wpa_s->best_5_freq;
2994 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
2995 "channel %d MHz", params->freq);
2996 } else {
2997 params->freq = 2412;
2998 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
2999 "known)", params->freq);
3000 }
3001
b22128ef
JM		 3002 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3003 wpa_s->assoc_freq && !freq) {
3004 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3005 "already using");
3006 params->freq = wpa_s->assoc_freq;
3007 }
3008
3009 res = wpa_drv_shared_freq(wpa_s);
3010 if (res > 0 && !freq) {
3011 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3012 "already using on a shared interface");
3013 params->freq = res;
3014 }
3015}
3016
3017
3018static struct wpa_supplicant *
3019wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3020 int go)
3021{
3022 struct wpa_supplicant *group_wpa_s;
3023
3024 if (!wpas_p2p_create_iface(wpa_s))
3025 return wpa_s;
3026
3027 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3028 WPA_IF_P2P_CLIENT) < 0)
3029 return NULL;
3030 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3031 if (group_wpa_s == NULL) {
3032 wpas_p2p_remove_pending_group_interface(wpa_s);
3033 return NULL;
3034 }
3035
3036 return group_wpa_s;
3037}
3038
3039
3040/**
3041 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3042 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3043 * @persistent_group: Whether to create a persistent group
3044 * @freq: Frequency for the group or 0 to indicate no hardcoding
3045 * Returns: 0 on success, -1 on failure
3046 *
3047 * This function creates a new P2P group with the local end as the Group Owner,
3048 * i.e., without using Group Owner Negotiation.
3049 */
3050int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
3051 int freq)
3052{
3053 struct p2p_go_neg_results params;
7cfc4ac3
AGS		 3054 unsigned int r;
3055
9526fd29
JM		 3056 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3057 return -1;
3058
2d4f15d6
JJ		 3059 /* Make sure we are not running find during connection establishment */
3060 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
3061 wpas_p2p_stop_find(wpa_s);
3062
7cfc4ac3
AGS		 3063 if (freq == 2) {
3064 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3065 "band");
3066 if (wpa_s->best_24_freq > 0 &&
3067 p2p_supported_freq(wpa_s->global->p2p,
3068 wpa_s->best_24_freq)) {
3069 freq = wpa_s->best_24_freq;
3070 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3071 "channel: %d MHz", freq);
3072 } else {
3073 os_get_random((u8 *) &r, sizeof(r));
3074 freq = 2412 + (r % 3) * 25;
3075 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3076 "channel: %d MHz", freq);
3077 }
3078 }
3079
3080 if (freq == 5) {
3081 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3082 "band");
3083 if (wpa_s->best_5_freq > 0 &&
3084 p2p_supported_freq(wpa_s->global->p2p,
3085 wpa_s->best_5_freq)) {
3086 freq = wpa_s->best_5_freq;
3087 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3088 "channel: %d MHz", freq);
3089 } else {
3090 os_get_random((u8 *) &r, sizeof(r));
3091 freq = 5180 + (r % 4) * 20;
3092 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3093 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3094 "5 GHz channel for P2P group");
3095 return -1;
3096 }
3097 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3098 "channel: %d MHz", freq);
3099 }
3100 }
b22128ef 3101
4ae4650b
JM		 3102 if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3103 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3104 "(%u MHz) is not supported for P2P uses",
3105 freq);
3106 return -1;
3107 }
3108
b22128ef
JM		 3109 wpas_p2p_init_go_params(wpa_s, &params, freq);
3110 p2p_go_params(wpa_s->global->p2p, &params);
3111 params.persistent_group = persistent_group;
3112
3113 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3114 if (wpa_s == NULL)
3115 return -1;
3116 wpas_start_wps_go(wpa_s, &params, 0);
3117
3118 return 0;
3119}
3120
3121
3122static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3123 struct wpa_ssid *params, int addr_allocated)
3124{
3125 struct wpa_ssid *ssid;
3126
3127 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3128 if (wpa_s == NULL)
3129 return -1;
3130
3131 wpa_supplicant_ap_deinit(wpa_s);
3132
3133 ssid = wpa_config_add_network(wpa_s->conf);
3134 if (ssid == NULL)
3135 return -1;
b22128ef
JM		 3136 wpa_config_set_network_defaults(ssid);
3137 ssid->temporary = 1;
3138 ssid->proto = WPA_PROTO_RSN;
3139 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3140 ssid->group_cipher = WPA_CIPHER_CCMP;
3141 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3142 ssid->ssid = os_malloc(params->ssid_len);
3143 if (ssid->ssid == NULL) {
b22128ef
JM		 3144 wpa_config_remove_network(wpa_s->conf, ssid->id);
3145 return -1;
3146 }
3147 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3148 ssid->ssid_len = params->ssid_len;
3149 ssid->p2p_group = 1;
d1c8ac88 3150 ssid->export_keys = 1;
b22128ef
JM		 3151 if (params->psk_set) {
3152 os_memcpy(ssid->psk, params->psk, 32);
3153 ssid->psk_set = 1;
3154 }
3155 if (params->passphrase)
3156 ssid->passphrase = os_strdup(params->passphrase);
3157
3158 wpa_supplicant_select_network(wpa_s, ssid);
3159
3160 wpa_s->show_group_started = 1;
3161
3162 return 0;
3163}
3164
3165
3166int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3167 struct wpa_ssid *ssid, int addr_allocated,
3168 int freq)
3169{
3170 struct p2p_go_neg_results params;
6c0da49f 3171 int go = 0;
b22128ef
JM		 3172
3173 if (ssid->disabled != 2 || ssid->ssid == NULL)
3174 return -1;
3175
6c0da49f
JM		 3176 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
3177 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
3178 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
3179 "already running");
3180 return 0;
3181 }
3182
9d39057c
JM		 3183 /* Make sure we are not running find during connection establishment */
3184 wpas_p2p_stop_find(wpa_s);
b22128ef
JM		 3185
3186 if (ssid->mode == WPAS_MODE_INFRA)
3187 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
3188
3189 if (ssid->mode != WPAS_MODE_P2P_GO)
3190 return -1;
3191
3192 wpas_p2p_init_go_params(wpa_s, &params, freq);
3193
3194 params.role_go = 1;
3195 if (ssid->passphrase == NULL ||
3196 os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
3197 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
3198 "group");
3199 return -1;
3200 }
3201 os_strlcpy(params.passphrase, ssid->passphrase,
3202 sizeof(params.passphrase));
3203 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
3204 params.ssid_len = ssid->ssid_len;
3205 params.persistent_group = 1;
3206
3207 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
3208 if (wpa_s == NULL)
3209 return -1;
3210
3211 wpas_start_wps_go(wpa_s, &params, 0);
3212
3213 return 0;
3214}
3215
3216
3217static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
3218 struct wpabuf *proberesp_ies)
3219{
3220 struct wpa_supplicant *wpa_s = ctx;
3221 if (wpa_s->ap_iface) {
3222 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
adc33680
JM		 3223 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
3224 wpabuf_free(beacon_ies);
3225 wpabuf_free(proberesp_ies);
3226 return;
3227 }
b22128ef
JM		 3228 if (beacon_ies) {
3229 wpabuf_free(hapd->p2p_beacon_ie);
3230 hapd->p2p_beacon_ie = beacon_ies;
3231 }
3232 wpabuf_free(hapd->p2p_probe_resp_ie);
3233 hapd->p2p_probe_resp_ie = proberesp_ies;
3234 } else {
3235 wpabuf_free(beacon_ies);
3236 wpabuf_free(proberesp_ies);
3237 }
3238 wpa_supplicant_ap_update_beacon(wpa_s);
3239}
3240
3241
3071e181
JM		 3242static void wpas_p2p_idle_update(void *ctx, int idle)
3243{
3244 struct wpa_supplicant *wpa_s = ctx;
3245 if (!wpa_s->ap_iface)
3246 return;
3247 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
3248 if (idle)
3249 wpas_p2p_set_group_idle_timeout(wpa_s);
3250 else
3251 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3252}
3253
3254
b22128ef
JM		 3255struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
3256 int persistent_group,
3257 int group_formation)
3258{
3259 struct p2p_group *group;
3260 struct p2p_group_config *cfg;
3261
3ac17eba
JM		 3262 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3263 return NULL;
9526fd29
JM		 3264 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3265 return NULL;
3ac17eba 3266
b22128ef
JM		 3267 cfg = os_zalloc(sizeof(*cfg));
3268 if (cfg == NULL)
3269 return NULL;
3270
acc247b2
JM		 3271 if (persistent_group && wpa_s->conf->persistent_reconnect)
3272 cfg->persistent_group = 2;
3273 else if (persistent_group)
3274 cfg->persistent_group = 1;
b22128ef 3275 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3f4ce13f
JM		 3276 if (wpa_s->max_stations &&
3277 wpa_s->max_stations < wpa_s->conf->max_num_sta)
3278 cfg->max_clients = wpa_s->max_stations;
3279 else
3280 cfg->max_clients = wpa_s->conf->max_num_sta;
b22128ef
JM		 3281 cfg->cb_ctx = wpa_s;
3282 cfg->ie_update = wpas_p2p_ie_update;
3071e181 3283 cfg->idle_update = wpas_p2p_idle_update;
b22128ef
JM		 3284
3285 group = p2p_group_init(wpa_s->global->p2p, cfg);
3286 if (group == NULL)
3287 os_free(cfg);
3288 if (!group_formation)
3289 p2p_group_notif_formation_done(group);
3290 wpa_s->p2p_group = group;
3291 return group;
3292}
3293
3294
3295void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3296 int registrar)
3297{
3298 if (!wpa_s->p2p_in_provisioning) {
3299 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
3300 "provisioning not in progress");
3301 return;
3302 }
3303
ec437d9e
JJ		 3304 /* Clear any stored provisioning info */
3305 p2p_clear_provisioning_info(wpa_s->global->p2p, peer_addr);
3306
b22128ef
JM		 3307 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
3308 NULL);
3309 if (wpa_s->global->p2p)
3310 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
3ac17eba
JM		 3311 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3312 wpa_drv_wps_success_cb(wpa_s, peer_addr);
b22128ef
JM		 3313 wpas_group_formation_completed(wpa_s, 1);
3314}
3315
3316
3734552f
JS		 3317void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
3318 struct wps_event_fail *fail)
3319{
3320 if (!wpa_s->p2p_in_provisioning) {
3321 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
3322 "provisioning not in progress");
3323 return;
3324 }
ec437d9e
JJ		 3325
3326 if (wpa_s->go_params) {
3327 p2p_clear_provisioning_info(
3328 wpa_s->global->p2p,
3329 wpa_s->go_params->peer_interface_addr);
3330 }
3331
3734552f
JS		 3332 wpas_notify_p2p_wps_failed(wpa_s, fail);
3333}
3334
3335
b22128ef 3336int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
8c5f7309 3337 const char *config_method, int join)
b22128ef
JM		 3338{
3339 u16 config_methods;
3340
8c5f7309 3341 if (os_strncmp(config_method, "display", 7) == 0)
b22128ef 3342 config_methods = WPS_CONFIG_DISPLAY;
8c5f7309 3343 else if (os_strncmp(config_method, "keypad", 6) == 0)
b22128ef 3344 config_methods = WPS_CONFIG_KEYPAD;
8c5f7309
JJ		 3345 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
3346 os_strncmp(config_method, "pushbutton", 10) == 0)
b22128ef 3347 config_methods = WPS_CONFIG_PUSHBUTTON;
8c5f7309
JJ		 3348 else {
3349 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
b22128ef 3350 return -1;
8c5f7309 3351 }
b22128ef 3352
3ac17eba
JM		 3353 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3354 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
8c5f7309 3355 config_methods, join);
3ac17eba
JM		 3356 }
3357
9526fd29 3358 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef
JM		 3359 return -1;
3360
3361 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
8c5f7309 3362 config_methods, join);
b22128ef
JM		 3363}
3364
3365
3366int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
3367 char *end)
3368{
3369 return p2p_scan_result_text(ies, ies_len, buf, end);
3370}
3371
3372
1cc3a29d
JM		 3373static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
3374{
3375 if (!wpa_s->pending_action_tx)
3376 return;
3377
3378 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
3379 "operation request");
3380 wpabuf_free(wpa_s->pending_action_tx);
3381 wpa_s->pending_action_tx = NULL;
3382}
3383
3384
b22128ef 3385int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
046ef4aa
JMB		 3386 enum p2p_discovery_type type,
3387 unsigned int num_req_dev_types, const u8 *req_dev_types)
b22128ef 3388{
1cc3a29d 3389 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef
JM		 3390 wpa_s->p2p_long_listen = 0;
3391
3ac17eba
JM		 3392 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3393 return wpa_drv_p2p_find(wpa_s, timeout, type);
3394
9526fd29
JM		 3395 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3396 return -1;
3397
046ef4aa
JMB		 3398 return p2p_find(wpa_s->global->p2p, timeout, type,
3399 num_req_dev_types, req_dev_types);
b22128ef
JM		 3400}
3401
3402
3403void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
3404{
1cc3a29d 3405 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef 3406 wpa_s->p2p_long_listen = 0;
9d39057c 3407 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
ef922c4a 3408 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
39185dfa 3409 wpa_s->p2p_cb_on_scan_complete = 0;
b22128ef 3410
3ac17eba
JM		 3411 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3412 wpa_drv_p2p_stop_find(wpa_s);
3413 return;
3414 }
3415
9526fd29
JM		 3416 if (wpa_s->global->p2p)
3417 p2p_stop_find(wpa_s->global->p2p);
b22128ef
JM		 3418
3419 wpas_p2p_remove_pending_group_interface(wpa_s);
3420}
3421
3422
3423static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3424{
3425 struct wpa_supplicant *wpa_s = eloop_ctx;
3426 wpa_s->p2p_long_listen = 0;
3427}
3428
3429
3430int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
3431{
3432 int res;
3433
9526fd29
JM		 3434 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3435 return -1;
3436
1cc3a29d
JM		 3437 wpas_p2p_clear_pending_action_tx(wpa_s);
3438
b22128ef
JM		 3439 if (timeout == 0) {
3440 /*
3441 * This is a request for unlimited Listen state. However, at
3442 * least for now, this is mapped to a Listen state for one
3443 * hour.
3444 */
3445 timeout = 3600;
3446 }
3447 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3448 wpa_s->p2p_long_listen = 0;
3449
2bb747e2
JM		 3450 /*
3451 * Stop previous find/listen operation to avoid trying to request a new
3452 * remain-on-channel operation while the driver is still running the
3453 * previous one.
3454 */
3455 if (wpa_s->global->p2p)
3456 p2p_stop_find(wpa_s->global->p2p);
3457
b22128ef
JM		 3458 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
3459 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
11fb02be 3460 wpa_s->p2p_long_listen = timeout * 1000;
b22128ef
JM		 3461 eloop_register_timeout(timeout, 0,
3462 wpas_p2p_long_listen_timeout,
3463 wpa_s, NULL);
3464 }
3465
3466 return res;
3467}
3468
3469
4c08c0bd 3470int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 3471 u8 *buf, size_t len, int p2p_group)
3472{
4c08c0bd
JM		 3473 struct wpabuf *p2p_ie;
3474 int ret;
3475
b22128ef
JM		 3476 if (wpa_s->global->p2p_disabled)
3477 return -1;
3478 if (wpa_s->global->p2p == NULL)
3479 return -1;
e1f1509b
JM		 3480 if (bss == NULL)
3481 return -1;
b22128ef 3482
4c08c0bd
JM		 3483 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3484 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3485 p2p_group, p2p_ie);
3486 wpabuf_free(p2p_ie);
3487
3488 return ret;
b22128ef
JM		 3489}
3490
3491
3492int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
04a85e44 3493 const u8 *dst, const u8 *bssid,
b22128ef
JM		 3494 const u8 *ie, size_t ie_len)
3495{
3496 if (wpa_s->global->p2p_disabled)
3497 return 0;
3498 if (wpa_s->global->p2p == NULL)
3499 return 0;
3500
04a85e44
JM		 3501 return p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
3502 ie, ie_len);
b22128ef
JM		 3503}
3504
3505
3506void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3507 const u8 *sa, const u8 *bssid,
3508 u8 category, const u8 *data, size_t len, int freq)
3509{
3510 if (wpa_s->global->p2p_disabled)
3511 return;
3512 if (wpa_s->global->p2p == NULL)
3513 return;
3514
3515 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3516 freq);
3517}
3518
3519
3520void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3521{
3522 if (wpa_s->global->p2p_disabled)
3523 return;
3524 if (wpa_s->global->p2p == NULL)
3525 return;
3526
3527 p2p_scan_ie(wpa_s->global->p2p, ies);
3528}
3529
3530
3531void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3532{
3533 p2p_group_deinit(wpa_s->p2p_group);
3534 wpa_s->p2p_group = NULL;
a7fd39bb
JD		 3535
3536 wpa_s->ap_configured_cb = NULL;
3537 wpa_s->ap_configured_cb_ctx = NULL;
3538 wpa_s->ap_configured_cb_data = NULL;
3539 wpa_s->connect_without_scan = NULL;
b22128ef
JM		 3540}
3541
3542
3543int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3544{
3545 wpa_s->p2p_long_listen = 0;
3546
3ac17eba
JM		 3547 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3548 return wpa_drv_p2p_reject(wpa_s, addr);
3549
9526fd29
JM		 3550 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3551 return -1;
3552
b22128ef
JM		 3553 return p2p_reject(wpa_s->global->p2p, addr);
3554}
3555
3556
3557/* Invite to reinvoke a persistent group */
3558int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3559 struct wpa_ssid *ssid, const u8 *go_dev_addr)
3560{
3561 enum p2p_invite_role role;
3562 u8 *bssid = NULL;
3563
3564 if (ssid->mode == WPAS_MODE_P2P_GO) {
3565 role = P2P_INVITE_ROLE_GO;
3566 if (peer_addr == NULL) {
3567 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3568 "address in invitation command");
3569 return -1;
3570 }
3571 if (wpas_p2p_create_iface(wpa_s)) {
3572 if (wpas_p2p_add_group_interface(wpa_s,
3573 WPA_IF_P2P_GO) < 0) {
3574 wpa_printf(MSG_ERROR, "P2P: Failed to "
3575 "allocate a new interface for the "
3576 "group");
3577 return -1;
3578 }
3579 bssid = wpa_s->pending_interface_addr;
3580 } else
3581 bssid = wpa_s->own_addr;
3582 } else {
3583 role = P2P_INVITE_ROLE_CLIENT;
3584 peer_addr = ssid->bssid;
3585 }
3586 wpa_s->pending_invite_ssid_id = ssid->id;
3587
3ac17eba
JM		 3588 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3589 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3590 ssid->ssid, ssid->ssid_len,
3591 go_dev_addr, 1);
3592
9526fd29
JM		 3593 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3594 return -1;
3595
b22128ef
JM		 3596 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3597 ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3598}
3599
3600
3601/* Invite to join an active group */
3602int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3603 const u8 *peer_addr, const u8 *go_dev_addr)
3604{
3605 struct wpa_global *global = wpa_s->global;
3606 enum p2p_invite_role role;
3607 u8 *bssid = NULL;
3608 struct wpa_ssid *ssid;
3609
3610 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3611 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3612 break;
3613 }
3614 if (wpa_s == NULL) {
3615 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3616 return -1;
3617 }
3618
3619 ssid = wpa_s->current_ssid;
3620 if (ssid == NULL) {
3621 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3622 "invitation");
3623 return -1;
3624 }
3625
3626 if (ssid->mode == WPAS_MODE_P2P_GO) {
3627 role = P2P_INVITE_ROLE_ACTIVE_GO;
3628 bssid = wpa_s->own_addr;
3629 if (go_dev_addr == NULL)
2e062d5d 3630 go_dev_addr = wpa_s->parent->own_addr;
b22128ef
JM		 3631 } else {
3632 role = P2P_INVITE_ROLE_CLIENT;
3633 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3634 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3635 "invite to current group");
3636 return -1;
3637 }
3638 bssid = wpa_s->bssid;
3639 if (go_dev_addr == NULL &&
3640 !is_zero_ether_addr(wpa_s->go_dev_addr))
3641 go_dev_addr = wpa_s->go_dev_addr;
3642 }
bb79dc72 3643 wpa_s->parent->pending_invite_ssid_id = -1;
b22128ef 3644
3ac17eba
JM		 3645 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3646 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3647 ssid->ssid, ssid->ssid_len,
3648 go_dev_addr, 0);
3649
9526fd29
JM		 3650 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3651 return -1;
3652
b22128ef 3653 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
d9d6a58c
JM		 3654 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
3655 go_dev_addr, 0);
b22128ef
JM		 3656}
3657
3658
3659void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3660{
3661 struct wpa_ssid *ssid = wpa_s->current_ssid;
3662 const char *ssid_txt;
3663 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 3664 int network_id = -1;
b22128ef 3665 int persistent;
b49d6ccb 3666 int freq;
b22128ef
JM		 3667
3668 if (!wpa_s->show_group_started || !ssid)
3669 return;
3670
3671 wpa_s->show_group_started = 0;
3672
3673 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3674 os_memset(go_dev_addr, 0, ETH_ALEN);
3675 if (ssid->bssid_set)
3676 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3677 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3678 ssid->ssid_len);
3679 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3680
a0a9f3b0
JM		 3681 if (wpa_s->global->p2p_group_formation == wpa_s)
3682 wpa_s->global->p2p_group_formation = NULL;
3683
b49d6ccb
JJ		 3684 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
3685 (int) wpa_s->assoc_freq;
b22128ef
JM		 3686 if (ssid->passphrase == NULL && ssid->psk_set) {
3687 char psk[65];
3688 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3689 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 3690 "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
3691 MACSTR "%s",
b49d6ccb 3692 wpa_s->ifname, ssid_txt, freq, psk,
c481048f 3693 MAC2STR(go_dev_addr),
b22128ef
JM		 3694 persistent ? " [PERSISTENT]" : "");
3695 } else {
3696 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 3697 "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
3698 "go_dev_addr=" MACSTR "%s",
b49d6ccb 3699 wpa_s->ifname, ssid_txt, freq,
b22128ef
JM		 3700 ssid->passphrase ? ssid->passphrase : "",
3701 MAC2STR(go_dev_addr),
3702 persistent ? " [PERSISTENT]" : "");
3703 }
3704
3705 if (persistent)
4b6baa2f
JMB		 3706 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
3707 ssid, go_dev_addr);
3708 if (network_id < 0)
3709 network_id = ssid->id;
3710 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
b22128ef
JM		 3711}
3712
3713
3714int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3715 u32 interval1, u32 duration2, u32 interval2)
3716{
3ac17eba
JM		 3717 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3718 return -1;
9526fd29
JM		 3719 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3720 return -1;
3ac17eba 3721
b22128ef
JM		 3722 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3723 wpa_s->current_ssid == NULL ||
3724 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3725 return -1;
3726
3727 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3728 wpa_s->own_addr, wpa_s->assoc_freq,
3729 duration1, interval1, duration2, interval2);
3730}
3731
3732
3733int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3734 unsigned int interval)
3735{
3ac17eba
JM		 3736 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3737 return -1;
3738
9526fd29
JM		 3739 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3740 return -1;
3741
b22128ef
JM		 3742 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3743}
3744
3745
3071e181
JM		 3746static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
3747{
3748 struct wpa_supplicant *wpa_s = eloop_ctx;
3749
3750 if (wpa_s->conf->p2p_group_idle == 0) {
3751 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
3752 "disabled");
3753 return;
3754 }
3755
3756 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
3757 "group");
3758 wpa_s->removal_reason = P2P_GROUP_REMOVAL_IDLE_TIMEOUT;
3759 wpas_p2p_group_delete(wpa_s);
3760}
3761
3762
3763static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
3764{
3765 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3766 if (wpa_s->conf->p2p_group_idle == 0)
3767 return;
3768
3769 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3770 return;
3771
3772 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
3773 wpa_s->conf->p2p_group_idle);
3774 eloop_register_timeout(wpa_s->conf->p2p_group_idle, 0,
3775 wpas_p2p_group_idle_timeout, wpa_s, NULL);
3776}
3777
3778
b22128ef
JM		 3779void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3780 u16 reason_code, const u8 *ie, size_t ie_len)
3781{
9526fd29 3782 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef 3783 return;
3ac17eba
JM		 3784 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3785 return;
b22128ef
JM		 3786
3787 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3788}
3789
3790
3791void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3792 u16 reason_code, const u8 *ie, size_t ie_len)
3793{
9526fd29 3794 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef 3795 return;
3ac17eba
JM		 3796 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3797 return;
b22128ef
JM		 3798
3799 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3800}
3801
3802
3803void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
3804{
3805 struct p2p_data *p2p = wpa_s->global->p2p;
3806
3807 if (p2p == NULL)
3808 return;
3809
4c010834
KL		 3810 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3811 return;
3812
b22128ef
JM		 3813 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
3814 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
3815
2f646b6e
JB		 3816 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
3817 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
b22128ef 3818
b6e01800
JM		 3819 if (wpa_s->wps &&
3820 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
3821 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
3822
3823 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
3824 p2p_set_uuid(p2p, wpa_s->wps->uuid);
3825
3826 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
3827 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
3828 p2p_set_model_name(p2p, wpa_s->conf->model_name);
3829 p2p_set_model_number(p2p, wpa_s->conf->model_number);
3830 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
3831 }
3832
2f646b6e
JB		 3833 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
3834 p2p_set_sec_dev_types(p2p,
3835 (void *) wpa_s->conf->sec_device_type,
3836 wpa_s->conf->num_sec_device_types);
b22128ef 3837
f95cac27
JMB		 3838 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
3839 int i;
3840 p2p_remove_wps_vendor_extensions(p2p);
3841 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
3842 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
3843 continue;
3844 p2p_add_wps_vendor_extension(
3845 p2p, wpa_s->conf->wps_vendor_ext[i]);
3846 }
3847 }
3848
b22128ef
JM		 3849 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
3850 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3851 char country[3];
3852 country[0] = wpa_s->conf->country[0];
3853 country[1] = wpa_s->conf->country[1];
3854 country[2] = 0x04;
3855 p2p_set_country(p2p, country);
3856 }
3857
3858 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
3859 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
3860 wpa_s->conf->p2p_ssid_postfix ?
3861 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
3862 0);
3863 }
0f66abd2
SS		 3864
3865 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
3866 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
2463ba70
JS		 3867
3868 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
3869 u8 reg_class, channel;
3870 int ret;
3871 unsigned int r;
3872 if (wpa_s->conf->p2p_listen_reg_class &&
3873 wpa_s->conf->p2p_listen_channel) {
3874 reg_class = wpa_s->conf->p2p_listen_reg_class;
3875 channel = wpa_s->conf->p2p_listen_channel;
3876 } else {
3877 reg_class = 81;
3878 /*
3879 * Pick one of the social channels randomly as the
3880 * listen channel.
3881 */
3882 os_get_random((u8 *) &r, sizeof(r));
3883 channel = 1 + (r % 3) * 5;
3884 }
3885 ret = p2p_set_listen_channel(p2p, reg_class, channel);
3886 if (ret)
3887 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
3888 "failed: %d", ret);
3889 }
3890 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
3891 u8 op_reg_class, op_channel, cfg_op_channel;
3892 int ret = 0;
3893 unsigned int r;
3894 if (wpa_s->conf->p2p_oper_reg_class &&
3895 wpa_s->conf->p2p_oper_channel) {
3896 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
3897 op_channel = wpa_s->conf->p2p_oper_channel;
3898 cfg_op_channel = 1;
3899 } else {
3900 op_reg_class = 81;
3901 /*
3902 * Use random operation channel from (1, 6, 11)
3903 *if no other preference is indicated.
3904 */
3905 os_get_random((u8 *) &r, sizeof(r));
3906 op_channel = 1 + (r % 3) * 5;
3907 cfg_op_channel = 0;
3908 }
3909 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
3910 cfg_op_channel);
3911 if (ret)
3912 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
3913 "failed: %d", ret);
3914 }
b22128ef 3915}
aefb53bd
JM		 3916
3917
3918int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
3919 int duration)
3920{
3921 if (!wpa_s->ap_iface)
3922 return -1;
3923 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
3924 duration);
3925}
72044390
JM		 3926
3927
3928int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
3929{
9526fd29 3930 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
72044390
JM		 3931 return -1;
3932 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3933 return -1;
3934
3935 wpa_s->global->cross_connection = enabled;
3936 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
3937
3938 if (!enabled) {
3939 struct wpa_supplicant *iface;
3940
3941 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
3942 {
3943 if (iface->cross_connect_enabled == 0)
3944 continue;
3945
3946 iface->cross_connect_enabled = 0;
3947 iface->cross_connect_in_use = 0;
3948 wpa_msg(iface->parent, MSG_INFO,
3949 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3950 iface->ifname, iface->cross_connect_uplink);
3951 }
3952 }
3953
3954 return 0;
3955}
3956
3957
3958static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
3959{
3960 struct wpa_supplicant *iface;
3961
3962 if (!uplink->global->cross_connection)
3963 return;
3964
3965 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3966 if (!iface->cross_connect_enabled)
3967 continue;
3968 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3969 0)
3970 continue;
3971 if (iface->ap_iface == NULL)
3972 continue;
3973 if (iface->cross_connect_in_use)
3974 continue;
3975
3976 iface->cross_connect_in_use = 1;
3977 wpa_msg(iface->parent, MSG_INFO,
3978 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3979 iface->ifname, iface->cross_connect_uplink);
3980 }
3981}
3982
3983
3984static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
3985{
3986 struct wpa_supplicant *iface;
3987
3988 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3989 if (!iface->cross_connect_enabled)
3990 continue;
3991 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3992 0)
3993 continue;
3994 if (!iface->cross_connect_in_use)
3995 continue;
3996
3997 wpa_msg(iface->parent, MSG_INFO,
3998 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3999 iface->ifname, iface->cross_connect_uplink);
4000 iface->cross_connect_in_use = 0;
4001 }
4002}
4003
4004
4005void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4006{
4007 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
4008 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
4009 wpa_s->cross_connect_disallowed)
4010 wpas_p2p_disable_cross_connect(wpa_s);
4011 else
4012 wpas_p2p_enable_cross_connect(wpa_s);
3071e181
JM		 4013 if (!wpa_s->ap_iface)
4014 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
72044390
JM		 4015}
4016
4017
4018void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
4019{
4020 wpas_p2p_disable_cross_connect(wpa_s);
3071e181
JM		 4021 if (!wpa_s->ap_iface)
4022 wpas_p2p_set_group_idle_timeout(wpa_s);
72044390
JM		 4023}
4024
4025
4026static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
4027{
4028 struct wpa_supplicant *iface;
4029
4030 if (!wpa_s->global->cross_connection)
4031 return;
4032
4033 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
4034 if (iface == wpa_s)
4035 continue;
4036 if (iface->drv_flags &
4037 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
4038 continue;
4039 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
4040 continue;
4041
4042 wpa_s->cross_connect_enabled = 1;
4043 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
4044 sizeof(wpa_s->cross_connect_uplink));
4045 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
4046 "%s to %s whenever uplink is available",
4047 wpa_s->ifname, wpa_s->cross_connect_uplink);
4048
4049 if (iface->ap_iface || iface->current_ssid == NULL ||
4050 iface->current_ssid->mode != WPAS_MODE_INFRA ||
4051 iface->cross_connect_disallowed ||
4052 iface->wpa_state != WPA_COMPLETED)
4053 break;
4054
4055 wpa_s->cross_connect_in_use = 1;
4056 wpa_msg(wpa_s->parent, MSG_INFO,
4057 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4058 wpa_s->ifname, wpa_s->cross_connect_uplink);
4059 break;
4060 }
4061}
b73bf0a7
JM		 4062
4063
4064int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
4065{
4066 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
4067 !wpa_s->p2p_in_provisioning)
4068 return 0; /* not P2P client operation */
4069
4070 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
4071 "session overlap");
148bb37f
JM		 4072 if (wpa_s != wpa_s->parent)
4073 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
0a14e3ec
SS		 4074
4075 if (wpa_s->global->p2p)
4076 p2p_group_formation_failed(wpa_s->global->p2p);
4077
4078 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4079 wpa_s->parent, NULL);
4080
b73bf0a7
JM		 4081 wpas_group_formation_completed(wpa_s, 0);
4082 return 1;
4083}
b5c9da8d
JM		 4084
4085
4086void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
4087{
4088 struct p2p_channels chan;
4089
4090 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
4091 return;
4092
4093 os_memset(&chan, 0, sizeof(chan));
4094 if (wpas_p2p_setup_channels(wpa_s, &chan)) {
4095 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
4096 "channel list");
4097 return;
4098 }
4099
4100 p2p_update_channel_list(wpa_s->global->p2p, &chan);
4101}
59eba7a2
JM		 4102
4103
4104int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
4105{
4106 struct wpa_global *global = wpa_s->global;
4107 int found = 0;
231bbd03 4108 const u8 *peer;
59eba7a2 4109
9526fd29
JM		 4110 if (global->p2p == NULL)
4111 return -1;
4112
59eba7a2
JM		 4113 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
4114
4115 if (wpa_s->pending_interface_name[0] &&
4116 !is_zero_ether_addr(wpa_s->pending_interface_addr))
4117 found = 1;
4118
231bbd03
SS		 4119 peer = p2p_get_go_neg_peer(global->p2p);
4120 if (peer) {
4121 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
4122 MACSTR, MAC2STR(peer));
4123 p2p_unauthorize(global->p2p, peer);
4124 }
4125
59eba7a2
JM		 4126 wpas_p2p_stop_find(wpa_s);
4127
4128 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4129 if (wpa_s == global->p2p_group_formation &&
a0a9f3b0
JM		 4130 (wpa_s->p2p_in_provisioning ||
4131 wpa_s->parent->pending_interface_type ==
4132 WPA_IF_P2P_CLIENT)) {
59eba7a2
JM		 4133 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
4134 "formation found - cancelling",
4135 wpa_s->ifname);
4136 found = 1;
45fee6f0
SS		 4137 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4138 wpa_s->parent, NULL);
59eba7a2
JM		 4139 wpas_p2p_group_delete(wpa_s);
4140 break;
4141 }
4142 }
4143
4144 if (!found) {
4145 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
4146 return -1;
4147 }
4148
4149 return 0;
4150}
c973f386
JM		 4151
4152
4153void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
4154{
4155 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4156 return;
4157
4158 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
4159 "being available anymore");
4160 wpa_s->removal_reason = P2P_GROUP_REMOVAL_UNAVAILABLE;
4161 wpas_p2p_group_delete(wpa_s);
4162}
7cfc4ac3
AGS		 4163
4164
4165void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
4166 int freq_24, int freq_5, int freq_overall)
4167{
4168 struct p2p_data *p2p = wpa_s->global->p2p;
4169 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4170 return;
4171 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
4172}
9d562b79
SS		 4173
4174
4175int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
4176{
4177 u8 peer[ETH_ALEN];
4178 struct p2p_data *p2p = wpa_s->global->p2p;
4179
4180 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4181 return -1;
4182
4183 if (hwaddr_aton(addr, peer))
4184 return -1;
4185
4186 return p2p_unauthorize(p2p, peer);
4187}
3103f345
JB		 4188
4189
4190/**
4191 * wpas_p2p_disconnect - Disconnect from a P2P Group
4192 * @wpa_s: Pointer to wpa_supplicant data
4193 * Returns: 0 on success, -1 on failure
4194 *
4195 * This can be used to disconnect from a group in which the local end is a P2P
4196 * Client or to end a P2P Group in case the local end is the Group Owner. If a
4197 * virtual network interface was created for this group, that interface will be
4198 * removed. Otherwise, only the configured P2P group network will be removed
4199 * from the interface.
4200 */
4201int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
4202{
4203
4204 if (wpa_s == NULL)
4205 return -1;
4206
4207 wpa_s->removal_reason = P2P_GROUP_REMOVAL_REQUESTED;
4208 wpas_p2p_group_delete(wpa_s);
4209
4210 return 0;
4211}
303f60d3
JM		 4212
4213
4214int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
4215{
4216 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4217 return 0;
4218
4219 return p2p_in_progress(wpa_s->global->p2p);
4220}
502618f7
JM		 4221
4222
4223void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
4224 struct wpa_ssid *ssid)
4225
4226{
4227 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
4228 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4229 wpa_s->parent, NULL) > 0) {
4230 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
4231 "P2P group network getting removed");
4232 wpas_p2p_group_formation_timeout(wpa_s->parent, NULL);
4233 }
4234}
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