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Fix compiler warning with CONFIG_NO_SCAN_PROCESSING=y
[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
JM		 974{
975 struct wpa_supplicant *wpa_s = ctx;
976 char devtype[WPS_DEV_TYPE_BUFSIZE];
c5db8e51 977
b22128ef
JM		 978 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
979 " p2p_dev_addr=" MACSTR
980 " pri_dev_type=%s name='%s' config_methods=0x%x "
981 "dev_capab=0x%x group_capab=0x%x",
c5db8e51
KRK		 982 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
983 wps_dev_type_bin2str(info->pri_dev_type, devtype,
984 sizeof(devtype)),
985 info->device_name, info->config_methods,
986 info->dev_capab, info->group_capab);
d642d2d2
JB		 987
988 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
b22128ef
JM		 989}
990
991
56eeb8f2
JB		 992static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
993{
994 struct wpa_supplicant *wpa_s = ctx;
995
3074d8f1
JJ		 996 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
997 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
998
56eeb8f2
JB		 999 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1000}
1001
1002
b22128ef
JM		 1003static int wpas_start_listen(void *ctx, unsigned int freq,
1004 unsigned int duration,
1005 const struct wpabuf *probe_resp_ie)
1006{
1007 struct wpa_supplicant *wpa_s = ctx;
1008
0e2e565a 1009 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
b22128ef
JM		 1010
1011 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1012 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1013 "report received Probe Request frames");
1014 return -1;
1015 }
1016
1017 wpa_s->pending_listen_freq = freq;
1018 wpa_s->pending_listen_duration = duration;
1019
1020 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1021 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1022 "to remain on channel (%u MHz) for Listen "
1023 "state", freq);
1024 wpa_s->pending_listen_freq = 0;
1025 return -1;
1026 }
09d660b9 1027 wpa_s->off_channel_freq = 0;
07a30a66 1028 wpa_s->roc_waiting_drv_freq = freq;
b22128ef
JM		 1029
1030 return 0;
1031}
1032
1033
1034static void wpas_stop_listen(void *ctx)
1035{
1036 struct wpa_supplicant *wpa_s = ctx;
6cb22d2f 1037 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1038 wpa_drv_cancel_remain_on_channel(wpa_s);
1039 wpa_s->off_channel_freq = 0;
07a30a66 1040 wpa_s->roc_waiting_drv_freq = 0;
b22128ef 1041 }
839b33ad 1042 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
b22128ef
JM		 1043 wpa_drv_probe_req_report(wpa_s, 0);
1044}
1045
1046
1047static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1048{
1049 struct wpa_supplicant *wpa_s = ctx;
9dbf53fe 1050 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
b22128ef
JM		 1051}
1052
1053
1054static struct p2p_srv_bonjour *
1055wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1056 const struct wpabuf *query)
1057{
1058 struct p2p_srv_bonjour *bsrv;
1059 size_t len;
1060
1061 len = wpabuf_len(query);
1062 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1063 struct p2p_srv_bonjour, list) {
1064 if (len == wpabuf_len(bsrv->query) &&
1065 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1066 len) == 0)
1067 return bsrv;
1068 }
1069 return NULL;
1070}
1071
1072
1073static struct p2p_srv_upnp *
1074wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1075 const char *service)
1076{
1077 struct p2p_srv_upnp *usrv;
1078
1079 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1080 struct p2p_srv_upnp, list) {
1081 if (version == usrv->version &&
1082 os_strcmp(service, usrv->service) == 0)
1083 return usrv;
1084 }
1085 return NULL;
1086}
1087
1088
1089static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1090 u8 srv_trans_id)
1091{
1092 u8 *len_pos;
1093
1094 if (wpabuf_tailroom(resp) < 5)
1095 return;
1096
1097 /* Length (to be filled) */
1098 len_pos = wpabuf_put(resp, 2);
1099 wpabuf_put_u8(resp, srv_proto);
1100 wpabuf_put_u8(resp, srv_trans_id);
1101 /* Status Code */
1102 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1103 /* Response Data: empty */
1104 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1105}
1106
1107
1108static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1109 struct wpabuf *resp, u8 srv_trans_id)
1110{
1111 struct p2p_srv_bonjour *bsrv;
1112 u8 *len_pos;
1113
1114 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1115
1116 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1117 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1118 return;
1119 }
1120
1121 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1122 struct p2p_srv_bonjour, list) {
1123 if (wpabuf_tailroom(resp) <
1124 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1125 return;
1126 /* Length (to be filled) */
1127 len_pos = wpabuf_put(resp, 2);
1128 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1129 wpabuf_put_u8(resp, srv_trans_id);
1130 /* Status Code */
1131 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1132 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1133 wpabuf_head(bsrv->resp),
1134 wpabuf_len(bsrv->resp));
1135 /* Response Data */
1136 wpabuf_put_buf(resp, bsrv->query); /* Key */
1137 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1138 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1139 2);
1140 }
1141}
1142
1143
1144static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1145 struct wpabuf *resp, u8 srv_trans_id,
1146 const u8 *query, size_t query_len)
1147{
1148 struct p2p_srv_bonjour *bsrv;
1149 struct wpabuf buf;
1150 u8 *len_pos;
1151
1152 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1153 query, query_len);
1154 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1155 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1156 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1157 srv_trans_id);
1158 return;
1159 }
1160
1161 if (query_len == 0) {
1162 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1163 return;
1164 }
1165
1166 if (wpabuf_tailroom(resp) < 5)
1167 return;
1168 /* Length (to be filled) */
1169 len_pos = wpabuf_put(resp, 2);
1170 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1171 wpabuf_put_u8(resp, srv_trans_id);
1172
1173 wpabuf_set(&buf, query, query_len);
1174 bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1175 if (bsrv == NULL) {
1176 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1177 "available");
1178
1179 /* Status Code */
bf608cad 1180 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1181 /* Response Data: empty */
1182 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1183 2);
1184 return;
1185 }
1186
1187 /* Status Code */
1188 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1189 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1190 wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1191
1192 if (wpabuf_tailroom(resp) >=
1193 wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1194 /* Response Data */
1195 wpabuf_put_buf(resp, bsrv->query); /* Key */
1196 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1197 }
1198 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1199}
1200
1201
1202static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1203 struct wpabuf *resp, u8 srv_trans_id)
1204{
1205 struct p2p_srv_upnp *usrv;
1206 u8 *len_pos;
1207
1208 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1209
1210 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1211 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1212 return;
1213 }
1214
1215 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1216 struct p2p_srv_upnp, list) {
1217 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1218 return;
1219
1220 /* Length (to be filled) */
1221 len_pos = wpabuf_put(resp, 2);
1222 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1223 wpabuf_put_u8(resp, srv_trans_id);
1224
1225 /* Status Code */
1226 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1227 /* Response Data */
1228 wpabuf_put_u8(resp, usrv->version);
1229 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1230 usrv->service);
1231 wpabuf_put_str(resp, usrv->service);
1232 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1233 2);
1234 }
1235}
1236
1237
1238static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1239 struct wpabuf *resp, u8 srv_trans_id,
1240 const u8 *query, size_t query_len)
1241{
1242 struct p2p_srv_upnp *usrv;
1243 u8 *len_pos;
1244 u8 version;
1245 char *str;
1246 int count = 0;
1247
1248 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1249 query, query_len);
1250
1251 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1252 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1253 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1254 srv_trans_id);
1255 return;
1256 }
1257
1258 if (query_len == 0) {
1259 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1260 return;
1261 }
1262
b22128ef
JM		 1263 if (wpabuf_tailroom(resp) < 5)
1264 return;
1265
1266 /* Length (to be filled) */
1267 len_pos = wpabuf_put(resp, 2);
1268 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1269 wpabuf_put_u8(resp, srv_trans_id);
1270
79222cfa
JM		 1271 version = query[0];
1272 str = os_malloc(query_len);
1273 if (str == NULL)
1274 return;
1275 os_memcpy(str, query + 1, query_len - 1);
1276 str[query_len - 1] = '\0';
1277
b22128ef
JM		 1278 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1279 struct p2p_srv_upnp, list) {
1280 if (version != usrv->version)
1281 continue;
1282
1283 if (os_strcmp(str, "ssdp:all") != 0 &&
1284 os_strstr(usrv->service, str) == NULL)
1285 continue;
1286
1287 if (wpabuf_tailroom(resp) < 2)
1288 break;
1289 if (count == 0) {
1290 /* Status Code */
1291 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1292 /* Response Data */
1293 wpabuf_put_u8(resp, version);
1294 } else
1295 wpabuf_put_u8(resp, ',');
1296
1297 count++;
1298
1299 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1300 usrv->service);
1301 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1302 break;
1303 wpabuf_put_str(resp, usrv->service);
1304 }
714b8b53 1305 os_free(str);
b22128ef
JM		 1306
1307 if (count == 0) {
1308 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1309 "available");
1310 /* Status Code */
bf608cad 1311 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1312 /* Response Data: empty */
1313 }
1314
1315 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1316}
1317
1318
1319void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1320 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1321{
1322 struct wpa_supplicant *wpa_s = ctx;
1323 const u8 *pos = tlvs;
1324 const u8 *end = tlvs + tlvs_len;
1325 const u8 *tlv_end;
1326 u16 slen;
1327 struct wpabuf *resp;
1328 u8 srv_proto, srv_trans_id;
1329 size_t buf_len;
1330 char *buf;
1331
1332 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1333 tlvs, tlvs_len);
1334 buf_len = 2 * tlvs_len + 1;
1335 buf = os_malloc(buf_len);
1336 if (buf) {
1337 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1338 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1339 MACSTR " %u %u %s",
1340 freq, MAC2STR(sa), dialog_token, update_indic,
1341 buf);
1342 os_free(buf);
1343 }
1344
1345 if (wpa_s->p2p_sd_over_ctrl_iface)
1346 return; /* to be processed by an external program */
1347
1348 resp = wpabuf_alloc(10000);
1349 if (resp == NULL)
1350 return;
1351
1352 while (pos + 1 < end) {
1353 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1354 slen = WPA_GET_LE16(pos);
1355 pos += 2;
1356 if (pos + slen > end || slen < 2) {
1357 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1358 "length");
1359 wpabuf_free(resp);
1360 return;
1361 }
1362 tlv_end = pos + slen;
1363
1364 srv_proto = *pos++;
1365 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1366 srv_proto);
1367 srv_trans_id = *pos++;
1368 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1369 srv_trans_id);
1370
1371 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1372 pos, tlv_end - pos);
1373
6e6963ea
JM		 1374
1375 if (wpa_s->force_long_sd) {
1376 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1377 "response");
1378 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1379 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1380 goto done;
1381 }
1382
b22128ef
JM		 1383 switch (srv_proto) {
1384 case P2P_SERV_ALL_SERVICES:
1385 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1386 "for all services");
1387 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1388 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1389 wpa_printf(MSG_DEBUG, "P2P: No service "
1390 "discovery protocols available");
1391 wpas_sd_add_proto_not_avail(
1392 resp, P2P_SERV_ALL_SERVICES,
1393 srv_trans_id);
1394 break;
1395 }
1396 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1397 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1398 break;
1399 case P2P_SERV_BONJOUR:
1400 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1401 pos, tlv_end - pos);
1402 break;
1403 case P2P_SERV_UPNP:
1404 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1405 pos, tlv_end - pos);
1406 break;
1407 default:
1408 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1409 "protocol %u", srv_proto);
1410 wpas_sd_add_proto_not_avail(resp, srv_proto,
1411 srv_trans_id);
1412 break;
1413 }
1414
1415 pos = tlv_end;
1416 }
1417
6e6963ea 1418done:
e1653cac
KRK		 1419 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1420 update_indic, tlvs, tlvs_len);
1421
b22128ef
JM		 1422 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1423
1424 wpabuf_free(resp);
1425}
1426
1427
1428void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1429 const u8 *tlvs, size_t tlvs_len)
1430{
1431 struct wpa_supplicant *wpa_s = ctx;
1432 const u8 *pos = tlvs;
1433 const u8 *end = tlvs + tlvs_len;
1434 const u8 *tlv_end;
1435 u16 slen;
1436 size_t buf_len;
1437 char *buf;
1438
1439 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1440 tlvs, tlvs_len);
18708aad
JM		 1441 if (tlvs_len > 1500) {
1442 /* TODO: better way for handling this */
1443 wpa_msg_ctrl(wpa_s, MSG_INFO,
1444 P2P_EVENT_SERV_DISC_RESP MACSTR
1445 " %u <long response: %u bytes>",
1446 MAC2STR(sa), update_indic,
1447 (unsigned int) tlvs_len);
1448 } else {
1449 buf_len = 2 * tlvs_len + 1;
1450 buf = os_malloc(buf_len);
1451 if (buf) {
1452 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1453 wpa_msg_ctrl(wpa_s, MSG_INFO,
1454 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1455 MAC2STR(sa), update_indic, buf);
1456 os_free(buf);
1457 }
b22128ef
JM		 1458 }
1459
1460 while (pos < end) {
1461 u8 srv_proto, srv_trans_id, status;
1462
1463 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1464 slen = WPA_GET_LE16(pos);
1465 pos += 2;
1466 if (pos + slen > end || slen < 3) {
1467 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1468 "length");
1469 return;
1470 }
1471 tlv_end = pos + slen;
1472
1473 srv_proto = *pos++;
1474 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1475 srv_proto);
1476 srv_trans_id = *pos++;
1477 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1478 srv_trans_id);
1479 status = *pos++;
1480 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1481 status);
1482
1483 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1484 pos, tlv_end - pos);
1485
1486 pos = tlv_end;
1487 }
43a26f60
KRK		 1488
1489 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
b22128ef
JM		 1490}
1491
1492
7165c5dc
JM		 1493u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1494 const struct wpabuf *tlvs)
b22128ef 1495{
3ac17eba 1496 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
7165c5dc 1497 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
9526fd29 1498 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7165c5dc
JM		 1499 return 0;
1500 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
b22128ef
JM		 1501}
1502
1503
7165c5dc
JM		 1504u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1505 u8 version, const char *query)
b22128ef
JM		 1506{
1507 struct wpabuf *tlvs;
7165c5dc 1508 u64 ret;
b22128ef
JM		 1509
1510 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1511 if (tlvs == NULL)
7165c5dc 1512 return 0;
b22128ef
JM		 1513 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1514 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1515 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1516 wpabuf_put_u8(tlvs, version);
1517 wpabuf_put_str(tlvs, query);
1518 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1519 wpabuf_free(tlvs);
1520 return ret;
1521}
1522
1523
7165c5dc 1524int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
b22128ef 1525{
3ac17eba 1526 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
7165c5dc 1527 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
9526fd29
JM		 1528 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1529 return -1;
7165c5dc
JM		 1530 return p2p_sd_cancel_request(wpa_s->global->p2p,
1531 (void *) (uintptr_t) req);
b22128ef
JM		 1532}
1533
1534
1535void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1536 const u8 *dst, u8 dialog_token,
1537 const struct wpabuf *resp_tlvs)
1538{
3ac17eba
JM		 1539 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1540 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1541 resp_tlvs);
1542 return;
1543 }
9526fd29
JM		 1544 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1545 return;
b22128ef
JM		 1546 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1547 resp_tlvs);
1548}
1549
1550
1551void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1552{
3ac17eba
JM		 1553 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1554 wpa_drv_p2p_service_update(wpa_s);
1555 return;
1556 }
9526fd29
JM		 1557 if (wpa_s->global->p2p)
1558 p2p_sd_service_update(wpa_s->global->p2p);
b22128ef
JM		 1559}
1560
1561
1562static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1563{
1564 dl_list_del(&bsrv->list);
1565 wpabuf_free(bsrv->query);
1566 wpabuf_free(bsrv->resp);
1567 os_free(bsrv);
1568}
1569
1570
1571static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1572{
1573 dl_list_del(&usrv->list);
1574 os_free(usrv->service);
1575 os_free(usrv);
1576}
1577
1578
1579void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1580{
1581 struct p2p_srv_bonjour *bsrv, *bn;
1582 struct p2p_srv_upnp *usrv, *un;
1583
1584 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1585 struct p2p_srv_bonjour, list)
1586 wpas_p2p_srv_bonjour_free(bsrv);
1587
1588 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1589 struct p2p_srv_upnp, list)
1590 wpas_p2p_srv_upnp_free(usrv);
1591
1592 wpas_p2p_sd_service_update(wpa_s);
1593}
1594
1595
1596int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1597 struct wpabuf *query, struct wpabuf *resp)
1598{
1599 struct p2p_srv_bonjour *bsrv;
1600
1601 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1602 if (bsrv) {
1603 wpabuf_free(query);
1604 wpabuf_free(bsrv->resp);
1605 bsrv->resp = resp;
1606 return 0;
1607 }
1608
1609 bsrv = os_zalloc(sizeof(*bsrv));
1610 if (bsrv == NULL)
1611 return -1;
1612 bsrv->query = query;
1613 bsrv->resp = resp;
1614 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1615
1616 wpas_p2p_sd_service_update(wpa_s);
1617 return 0;
1618}
1619
1620
1621int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1622 const struct wpabuf *query)
1623{
1624 struct p2p_srv_bonjour *bsrv;
1625
1626 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1627 if (bsrv == NULL)
1628 return -1;
1629 wpas_p2p_srv_bonjour_free(bsrv);
1630 wpas_p2p_sd_service_update(wpa_s);
1631 return 0;
1632}
1633
1634
1635int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1636 const char *service)
1637{
1638 struct p2p_srv_upnp *usrv;
1639
1640 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1641 return 0; /* Already listed */
1642 usrv = os_zalloc(sizeof(*usrv));
1643 if (usrv == NULL)
1644 return -1;
1645 usrv->version = version;
1646 usrv->service = os_strdup(service);
1647 if (usrv->service == NULL) {
1648 os_free(usrv);
1649 return -1;
1650 }
1651 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1652
1653 wpas_p2p_sd_service_update(wpa_s);
1654 return 0;
1655}
1656
1657
1658int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1659 const char *service)
1660{
1661 struct p2p_srv_upnp *usrv;
1662
1663 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1664 if (usrv == NULL)
1665 return -1;
1666 wpas_p2p_srv_upnp_free(usrv);
1667 wpas_p2p_sd_service_update(wpa_s);
1668 return 0;
1669}
1670
1671
1672static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
bbeee9b0
JB		 1673 const u8 *peer, const char *params,
1674 unsigned int generated_pin)
b22128ef
JM		 1675{
1676 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
bbeee9b0 1677 MAC2STR(peer), generated_pin, params);
b22128ef
JM		 1678}
1679
1680
1681static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1682 const u8 *peer, const char *params)
1683{
1684 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1685 MAC2STR(peer), params);
1686}
1687
1688
1689void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1690 const u8 *dev_addr, const u8 *pri_dev_type,
1691 const char *dev_name, u16 supp_config_methods,
c3f42784
JM		 1692 u8 dev_capab, u8 group_capab, const u8 *group_id,
1693 size_t group_id_len)
b22128ef
JM		 1694{
1695 struct wpa_supplicant *wpa_s = ctx;
1696 char devtype[WPS_DEV_TYPE_BUFSIZE];
c3f42784 1697 char params[300];
b22128ef 1698 u8 empty_dev_type[8];
bbeee9b0 1699 unsigned int generated_pin = 0;
c3f42784
JM		 1700 struct wpa_supplicant *group = NULL;
1701
1702 if (group_id) {
1703 for (group = wpa_s->global->ifaces; group; group = group->next)
1704 {
1705 struct wpa_ssid *s = group->current_ssid;
1706 if (s != NULL &&
1707 s->mode == WPAS_MODE_P2P_GO &&
1708 group_id_len - ETH_ALEN == s->ssid_len &&
1709 os_memcmp(group_id + ETH_ALEN, s->ssid,
1710 s->ssid_len) == 0)
1711 break;
1712 }
1713 }
b22128ef
JM		 1714
1715 if (pri_dev_type == NULL) {
1716 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1717 pri_dev_type = empty_dev_type;
1718 }
1719 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1720 " pri_dev_type=%s name='%s' config_methods=0x%x "
c3f42784 1721 "dev_capab=0x%x group_capab=0x%x%s%s",
b22128ef
JM		 1722 MAC2STR(dev_addr),
1723 wps_dev_type_bin2str(pri_dev_type, devtype,
1724 sizeof(devtype)),
c3f42784
JM		 1725 dev_name, supp_config_methods, dev_capab, group_capab,
1726 group ? " group=" : "",
1727 group ? group->ifname : "");
b22128ef
JM		 1728 params[sizeof(params) - 1] = '\0';
1729
bbeee9b0
JB		 1730 if (config_methods & WPS_CONFIG_DISPLAY) {
1731 generated_pin = wps_generate_pin();
1732 wpas_prov_disc_local_display(wpa_s, peer, params,
1733 generated_pin);
1734 } else if (config_methods & WPS_CONFIG_KEYPAD)
b22128ef
JM		 1735 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1736 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1737 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1738 "%s", MAC2STR(peer), params);
dd8a7e05
JB		 1739
1740 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
1741 P2P_PROV_DISC_SUCCESS,
1742 config_methods, generated_pin);
b22128ef
JM		 1743}
1744
1745
1746void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1747{
1748 struct wpa_supplicant *wpa_s = ctx;
bbeee9b0
JB		 1749 unsigned int generated_pin = 0;
1750
b22128ef
JM		 1751 if (config_methods & WPS_CONFIG_DISPLAY)
1752 wpas_prov_disc_local_keypad(wpa_s, peer, "");
bbeee9b0
JB		 1753 else if (config_methods & WPS_CONFIG_KEYPAD) {
1754 generated_pin = wps_generate_pin();
1755 wpas_prov_disc_local_display(wpa_s, peer, "", generated_pin);
1756 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
b22128ef
JM		 1757 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1758 MAC2STR(peer));
a482883f 1759
dd8a7e05
JB		 1760 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1761 P2P_PROV_DISC_SUCCESS,
1762 config_methods, generated_pin);
1763
a482883f
JM		 1764 if (wpa_s->pending_pd_before_join &&
1765 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1766 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
1767 wpa_s->pending_pd_before_join = 0;
1768 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
1769 "join-existing-group operation");
1770 wpas_p2p_join_start(wpa_s);
1771 }
b22128ef
JM		 1772}
1773
1774
19df9b07
JM		 1775static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
1776 enum p2p_prov_disc_status status)
dd8a7e05
JB		 1777{
1778 struct wpa_supplicant *wpa_s = ctx;
1779
1780 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1781 status, 0, 0);
1782}
1783
1784
b22128ef
JM		 1785static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1786 const u8 *go_dev_addr, const u8 *ssid,
1787 size_t ssid_len, int *go, u8 *group_bssid,
1788 int *force_freq, int persistent_group)
1789{
1790 struct wpa_supplicant *wpa_s = ctx;
1791 struct wpa_ssid *s;
1792 u8 cur_bssid[ETH_ALEN];
1793 int res;
ab72eb52 1794 struct wpa_supplicant *grp;
b22128ef
JM		 1795
1796 if (!persistent_group) {
1797 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1798 " to join an active group", MAC2STR(sa));
108def93 1799 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
131cb37c
JM		 1800 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
1801 == 0 ||
1802 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
108def93
JM		 1803 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
1804 "authorized invitation");
1805 goto accept_inv;
1806 }
b22128ef
JM		 1807 /*
1808 * Do not accept the invitation automatically; notify user and
1809 * request approval.
1810 */
1811 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1812 }
1813
ab72eb52
JM		 1814 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
1815 if (grp) {
1816 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
1817 "running persistent group");
1818 if (*go)
1819 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
1820 goto accept_inv;
1821 }
1822
b22128ef
JM		 1823 if (!wpa_s->conf->persistent_reconnect)
1824 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1825
1826 for (s = wpa_s->conf->ssid; s; s = s->next) {
1827 if (s->disabled == 2 &&
1828 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
1829 s->ssid_len == ssid_len &&
1830 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1831 break;
1832 }
1833
1834 if (!s) {
1835 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1836 " requested reinvocation of an unknown group",
1837 MAC2STR(sa));
1838 return P2P_SC_FAIL_UNKNOWN_GROUP;
1839 }
1840
1841 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
1842 *go = 1;
1843 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1844 wpa_printf(MSG_DEBUG, "P2P: The only available "
1845 "interface is already in use - reject "
1846 "invitation");
1847 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1848 }
1849 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
1850 } else if (s->mode == WPAS_MODE_P2P_GO) {
1851 *go = 1;
1852 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
1853 {
1854 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
1855 "interface address for the group");
1856 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1857 }
1858 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
1859 ETH_ALEN);
1860 }
1861
108def93 1862accept_inv:
b22128ef
JM		 1863 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
1864 wpa_s->assoc_freq) {
1865 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1866 "the channel we are already using");
1867 *force_freq = wpa_s->assoc_freq;
1868 }
1869
1870 res = wpa_drv_shared_freq(wpa_s);
1871 if (res > 0) {
1872 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1873 "with the channel we are already using on a "
1874 "shared interface");
1875 *force_freq = res;
1876 }
1877
1878 return P2P_SC_SUCCESS;
1879}
1880
1881
1882static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
1883 const u8 *ssid, size_t ssid_len,
1884 const u8 *go_dev_addr, u8 status,
1885 int op_freq)
1886{
1887 struct wpa_supplicant *wpa_s = ctx;
1888 struct wpa_ssid *s;
1889
1890 for (s = wpa_s->conf->ssid; s; s = s->next) {
1891 if (s->disabled == 2 &&
1892 s->ssid_len == ssid_len &&
1893 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1894 break;
1895 }
1896
1897 if (status == P2P_SC_SUCCESS) {
1898 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1899 " was accepted; op_freq=%d MHz",
1900 MAC2STR(sa), op_freq);
1901 if (s) {
1902 wpas_p2p_group_add_persistent(
1903 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
2049af2b 1904 } else if (bssid) {
108def93
JM		 1905 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
1906 wpa_s->p2p_wps_method);
b22128ef
JM		 1907 }
1908 return;
1909 }
1910
1911 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
1912 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1913 " was rejected (status %u)", MAC2STR(sa), status);
1914 return;
1915 }
1916
1917 if (!s) {
1918 if (bssid) {
1919 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1920 "sa=" MACSTR " go_dev_addr=" MACSTR
1921 " bssid=" MACSTR " unknown-network",
1922 MAC2STR(sa), MAC2STR(go_dev_addr),
1923 MAC2STR(bssid));
1924 } else {
1925 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1926 "sa=" MACSTR " go_dev_addr=" MACSTR
1927 " unknown-network",
1928 MAC2STR(sa), MAC2STR(go_dev_addr));
1929 }
1930 return;
1931 }
1932
1933 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
1934 " persistent=%d", MAC2STR(sa), s->id);
1935}
1936
1937
1938static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
1939{
1940 struct wpa_supplicant *wpa_s = ctx;
1941 struct wpa_ssid *ssid;
1942
1943 if (bssid) {
1944 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1945 "status=%d " MACSTR,
1946 status, MAC2STR(bssid));
1947 } else {
1948 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1949 "status=%d ", status);
1950 }
5ccdf84f 1951 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
b22128ef 1952
706887fc
JM		 1953 if (wpa_s->pending_invite_ssid_id == -1)
1954 return; /* Invitation to active group */
1955
b22128ef
JM		 1956 if (status != P2P_SC_SUCCESS) {
1957 wpas_p2p_remove_pending_group_interface(wpa_s);
1958 return;
1959 }
1960
1961 ssid = wpa_config_get_network(wpa_s->conf,
1962 wpa_s->pending_invite_ssid_id);
1963 if (ssid == NULL) {
1964 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
1965 "data matching with invitation");
1966 return;
1967 }
1968
1969 wpas_p2p_group_add_persistent(wpa_s, ssid,
1970 ssid->mode == WPAS_MODE_P2P_GO, 0);
1971}
1972
1973
ac8d1011
JM		 1974static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
1975 struct p2p_channels *chan)
1976{
1977 int i, cla = 0;
1978
1979 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
1980 "band");
1981
1982 /* Operating class 81 - 2.4 GHz band channels 1..13 */
1983 chan->reg_class[cla].reg_class = 81;
1984 chan->reg_class[cla].channels = 11;
1985 for (i = 0; i < 11; i++)
1986 chan->reg_class[cla].channel[i] = i + 1;
1987 cla++;
1988
1989 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
1990 "band");
1991
1992 /* Operating class 115 - 5 GHz, channels 36-48 */
1993 chan->reg_class[cla].reg_class = 115;
1994 chan->reg_class[cla].channels = 4;
1995 chan->reg_class[cla].channel[0] = 36;
1996 chan->reg_class[cla].channel[1] = 40;
1997 chan->reg_class[cla].channel[2] = 44;
1998 chan->reg_class[cla].channel[3] = 48;
1999 cla++;
2000
2001 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2002 "band");
2003
2004 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2005 chan->reg_class[cla].reg_class = 124;
2006 chan->reg_class[cla].channels = 4;
2007 chan->reg_class[cla].channel[0] = 149;
2008 chan->reg_class[cla].channel[1] = 153;
2009 chan->reg_class[cla].channel[2] = 157;
2010 chan->reg_class[cla].channel[3] = 161;
2011 cla++;
2012
2013 chan->reg_classes = cla;
2014 return 0;
2015}
2016
2017
2018static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2019 u16 num_modes,
2020 enum hostapd_hw_mode mode)
2021{
2022 u16 i;
2023
2024 for (i = 0; i < num_modes; i++) {
2025 if (modes[i].mode == mode)
2026 return &modes[i];
2027 }
2028
2029 return NULL;
2030}
2031
2032
51222429 2033static int has_channel(struct hostapd_hw_modes *mode, u8 chan, int *flags)
ac8d1011
JM		 2034{
2035 int i;
2036
2037 for (i = 0; i < mode->num_channels; i++) {
2038 if (mode->channels[i].chan == chan) {
51222429
JM		 2039 if (flags)
2040 *flags = mode->channels[i].flag;
ac8d1011
JM		 2041 return !(mode->channels[i].flag &
2042 (HOSTAPD_CHAN_DISABLED |
2043 HOSTAPD_CHAN_PASSIVE_SCAN |
2044 HOSTAPD_CHAN_NO_IBSS |
2045 HOSTAPD_CHAN_RADAR));
2046 }
2047 }
2048
2049 return 0;
2050}
2051
2052
2053struct p2p_oper_class_map {
2054 enum hostapd_hw_mode mode;
2055 u8 op_class;
2056 u8 min_chan;
2057 u8 max_chan;
2058 u8 inc;
51222429 2059 enum { BW20, BW40PLUS, BW40MINUS } bw;
ac8d1011
JM		 2060};
2061
b22128ef 2062static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
ac8d1011 2063 struct p2p_channels *chan)
b22128ef 2064{
6bf731e8 2065 struct hostapd_hw_modes *mode;
ac8d1011
JM		 2066 int cla, op;
2067 struct p2p_oper_class_map op_class[] = {
51222429
JM		 2068 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2069 { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 },
2070#if 0 /* Do not enable HT40 on 2 GHz for now */
2071 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2072 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
ac8d1011 2073#endif
51222429
JM		 2074 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2075 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2076 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2077 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2078 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2079 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2080 { -1, 0, 0, 0, 0, BW20 }
ac8d1011 2081 };
b22128ef 2082
6bf731e8 2083 if (wpa_s->hw.modes == NULL) {
b22128ef
JM		 2084 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2085 "of all supported channels; assume dualband "
2086 "support");
ac8d1011 2087 return wpas_p2p_default_channels(wpa_s, chan);
b22128ef
JM		 2088 }
2089
2090 cla = 0;
2091
ac8d1011
JM		 2092 for (op = 0; op_class[op].op_class; op++) {
2093 struct p2p_oper_class_map *o = &op_class[op];
2094 u8 ch;
2095 struct p2p_reg_class *reg = NULL;
b22128ef 2096
6bf731e8 2097 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
ac8d1011
JM		 2098 if (mode == NULL)
2099 continue;
2100 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
51222429
JM		 2101 int flag;
2102 if (!has_channel(mode, ch, &flag))
2103 continue;
2104 if (o->bw == BW40MINUS &&
2105 (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
5254eb7e 2106 !has_channel(mode, ch - 4, NULL)))
51222429
JM		 2107 continue;
2108 if (o->bw == BW40PLUS &&
2109 (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
5254eb7e 2110 !has_channel(mode, ch + 4, NULL)))
ac8d1011
JM		 2111 continue;
2112 if (reg == NULL) {
2113 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2114 "class %u", o->op_class);
2115 reg = &chan->reg_class[cla];
2116 cla++;
2117 reg->reg_class = o->op_class;
2118 }
2119 reg->channel[reg->channels] = ch;
2120 reg->channels++;
2121 }
2122 if (reg) {
2123 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2124 reg->channel, reg->channels);
2125 }
b22128ef
JM		 2126 }
2127
ac8d1011 2128 chan->reg_classes = cla;
b22128ef 2129
b22128ef
JM		 2130 return 0;
2131}
2132
2133
2134static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2135 size_t buf_len)
2136{
2137 struct wpa_supplicant *wpa_s = ctx;
2138
2139 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2140 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2141 break;
2142 }
2143 if (wpa_s == NULL)
2144 return -1;
2145
2146 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2147}
2148
2149
2150/**
2151 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2152 * @global: Pointer to global data from wpa_supplicant_init()
2153 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2154 * Returns: 0 on success, -1 on failure
2155 */
2156int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2157{
2158 struct p2p_config p2p;
2159 unsigned int r;
f95cac27 2160 int i;
b22128ef
JM		 2161
2162 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2163 return 0;
2164
b22128ef
JM		 2165 if (global->p2p)
2166 return 0;
2167
3ac17eba
JM		 2168 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2169 struct p2p_params params;
2170
2171 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2172 os_memset(&params, 0, sizeof(params));
2173 params.dev_name = wpa_s->conf->device_name;
2f646b6e
JB		 2174 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2175 WPS_DEV_TYPE_LEN);
2176 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2177 os_memcpy(params.sec_dev_type,
2178 wpa_s->conf->sec_device_type,
2179 params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2180
3ac17eba
JM		 2181 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
2182 return -1;
2183
2184 return 0;
2185 }
2186
b22128ef
JM		 2187 os_memset(&p2p, 0, sizeof(p2p));
2188 p2p.msg_ctx = wpa_s;
2189 p2p.cb_ctx = wpa_s;
2190 p2p.p2p_scan = wpas_p2p_scan;
2191 p2p.send_action = wpas_send_action;
2192 p2p.send_action_done = wpas_send_action_done;
2193 p2p.go_neg_completed = wpas_go_neg_completed;
2194 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2195 p2p.dev_found = wpas_dev_found;
56eeb8f2 2196 p2p.dev_lost = wpas_dev_lost;
b22128ef
JM		 2197 p2p.start_listen = wpas_start_listen;
2198 p2p.stop_listen = wpas_stop_listen;
2199 p2p.send_probe_resp = wpas_send_probe_resp;
2200 p2p.sd_request = wpas_sd_request;
2201 p2p.sd_response = wpas_sd_response;
2202 p2p.prov_disc_req = wpas_prov_disc_req;
2203 p2p.prov_disc_resp = wpas_prov_disc_resp;
dd8a7e05 2204 p2p.prov_disc_fail = wpas_prov_disc_fail;
b22128ef
JM		 2205 p2p.invitation_process = wpas_invitation_process;
2206 p2p.invitation_received = wpas_invitation_received;
2207 p2p.invitation_result = wpas_invitation_result;
2208 p2p.get_noa = wpas_get_noa;
2209
2210 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2211 os_memcpy(p2p.dev_addr, wpa_s->own_addr, ETH_ALEN);
2212 p2p.dev_name = wpa_s->conf->device_name;
b6e01800
JM		 2213 p2p.manufacturer = wpa_s->conf->manufacturer;
2214 p2p.model_name = wpa_s->conf->model_name;
2215 p2p.model_number = wpa_s->conf->model_number;
2216 p2p.serial_number = wpa_s->conf->serial_number;
2217 if (wpa_s->wps) {
2218 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2219 p2p.config_methods = wpa_s->wps->config_methods;
2220 }
b22128ef
JM		 2221
2222 if (wpa_s->conf->p2p_listen_reg_class &&
2223 wpa_s->conf->p2p_listen_channel) {
2224 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2225 p2p.channel = wpa_s->conf->p2p_listen_channel;
2226 } else {
2227 p2p.reg_class = 81;
2228 /*
2229 * Pick one of the social channels randomly as the listen
2230 * channel.
2231 */
2232 os_get_random((u8 *) &r, sizeof(r));
2233 p2p.channel = 1 + (r % 3) * 5;
2234 }
7cfc4ac3 2235 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
b22128ef
JM		 2236
2237 if (wpa_s->conf->p2p_oper_reg_class &&
2238 wpa_s->conf->p2p_oper_channel) {
2239 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2240 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 2241 p2p.cfg_op_channel = 1;
2242 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2243 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2244
b22128ef
JM		 2245 } else {
2246 p2p.op_reg_class = 81;
2247 /*
7cfc4ac3
AGS		 2248 * Use random operation channel from (1, 6, 11) if no other
2249 * preference is indicated.
b22128ef 2250 */
b7412dab 2251 os_get_random((u8 *) &r, sizeof(r));
7cfc4ac3
AGS		 2252 p2p.op_channel = 1 + (r % 3) * 5;
2253 p2p.cfg_op_channel = 0;
2254 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2255 "%d:%d", p2p.op_reg_class, p2p.op_channel);
b22128ef 2256 }
b22128ef
JM		 2257 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2258 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2259 p2p.country[2] = 0x04;
2260 } else
aaca6505 2261 os_memcpy(p2p.country, "XX\x04", 3);
b22128ef 2262
ac8d1011 2263 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
b22128ef
JM		 2264 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2265 "channel list");
2266 return -1;
2267 }
2268
2f646b6e
JB		 2269 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2270 WPS_DEV_TYPE_LEN);
b22128ef 2271
2f646b6e
JB		 2272 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2273 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2274 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
b22128ef
JM		 2275
2276 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2277 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2278
de979d8f 2279 p2p.max_peers = 100;
b22128ef
JM		 2280
2281 if (wpa_s->conf->p2p_ssid_postfix) {
2282 p2p.ssid_postfix_len =
2283 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2284 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2285 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2286 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2287 p2p.ssid_postfix_len);
2288 }
2289
0f66abd2
SS		 2290 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2291
b22128ef
JM		 2292 global->p2p = p2p_init(&p2p);
2293 if (global->p2p == NULL)
2294 return -1;
2295
f95cac27
JMB		 2296 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2297 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2298 continue;
2299 p2p_add_wps_vendor_extension(
2300 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2301 }
2302
b22128ef
JM		 2303 return 0;
2304}
2305
2306
2307/**
2308 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2309 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2310 *
2311 * This function deinitialize per-interface P2P data.
2312 */
2313void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2314{
2315 if (wpa_s->driver && wpa_s->drv_priv)
2316 wpa_drv_probe_req_report(wpa_s, 0);
ec437d9e
JJ		 2317
2318 if (wpa_s->go_params) {
2319 /* Clear any stored provisioning info */
2320 p2p_clear_provisioning_info(
2321 wpa_s->global->p2p,
2322 wpa_s->go_params->peer_interface_addr);
2323 }
2324
b22128ef
JM		 2325 os_free(wpa_s->go_params);
2326 wpa_s->go_params = NULL;
b22128ef 2327 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 2328 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 2329 wpa_s->p2p_long_listen = 0;
2330 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3071e181 2331 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
b22128ef
JM		 2332 wpas_p2p_remove_pending_group_interface(wpa_s);
2333
2334 /* TODO: remove group interface from the driver if this wpa_s instance
2335 * is on top of a P2P group interface */
2336}
2337
2338
2339/**
2340 * wpas_p2p_deinit_global - Deinitialize global P2P module
2341 * @global: Pointer to global data from wpa_supplicant_init()
2342 *
2343 * This function deinitializes the global (per device) P2P module.
2344 */
2345void wpas_p2p_deinit_global(struct wpa_global *global)
2346{
2347 struct wpa_supplicant *wpa_s, *tmp;
2348 char *ifname;
2349
2350 if (global->p2p == NULL)
2351 return;
2352
2353 /* Remove remaining P2P group interfaces */
2354 wpa_s = global->ifaces;
2a43101e
JM		 2355 if (wpa_s)
2356 wpas_p2p_service_flush(wpa_s);
b22128ef
JM		 2357 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2358 wpa_s = wpa_s->next;
2359 while (wpa_s) {
2360 enum wpa_driver_if_type type;
2361 tmp = global->ifaces;
2362 while (tmp &&
2363 (tmp == wpa_s ||
2364 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2365 tmp = tmp->next;
2366 }
2367 if (tmp == NULL)
2368 break;
2369 ifname = os_strdup(tmp->ifname);
2370 type = wpas_p2p_if_type(tmp->p2p_group_interface);
2371 wpa_supplicant_remove_iface(global, tmp);
2372 if (ifname)
2373 wpa_drv_if_remove(wpa_s, type, ifname);
2374 os_free(ifname);
2375 }
2376
743ef799
JM		 2377 /*
2378 * Deinit GO data on any possibly remaining interface (if main
2379 * interface is used as GO).
2380 */
2381 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2382 if (wpa_s->ap_iface)
2383 wpas_p2p_group_deinit(wpa_s);
2384 }
2385
b22128ef
JM		 2386 p2p_deinit(global->p2p);
2387 global->p2p = NULL;
2388}
2389
2390
2391static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2392{
971e357f
JM		 2393 if (wpa_s->drv_flags &
2394 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2395 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
b22128ef
JM		 2396 return 1; /* P2P group requires a new interface in every case
2397 */
2398 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2399 return 0; /* driver does not support concurrent operations */
2400 if (wpa_s->global->ifaces->next)
2401 return 1; /* more that one interface already in use */
2402 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2403 return 1; /* this interface is already in use */
2404 return 0;
2405}
2406
2407
2408static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2409 const u8 *peer_addr,
2410 enum p2p_wps_method wps_method,
2411 int go_intent, const u8 *own_interface_addr,
2412 unsigned int force_freq, int persistent_group)
2413{
acc247b2
JM		 2414 if (persistent_group && wpa_s->conf->persistent_reconnect)
2415 persistent_group = 2;
2416
3ac17eba
JM		 2417 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2418 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2419 go_intent, own_interface_addr,
2420 force_freq, persistent_group);
2421 }
2422
b22128ef
JM		 2423 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2424 go_intent, own_interface_addr, force_freq,
2425 persistent_group);
2426}
2427
2428
2429static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2430 const u8 *peer_addr,
2431 enum p2p_wps_method wps_method,
2432 int go_intent, const u8 *own_interface_addr,
2433 unsigned int force_freq, int persistent_group)
2434{
acc247b2
JM		 2435 if (persistent_group && wpa_s->conf->persistent_reconnect)
2436 persistent_group = 2;
2437
3ac17eba
JM		 2438 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2439 return -1;
2440
b22128ef
JM		 2441 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2442 go_intent, own_interface_addr, force_freq,
2443 persistent_group);
2444}
2445
2446
9b1ab931
JM		 2447static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
2448{
2449 wpa_s->p2p_join_scan_count++;
2450 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
2451 wpa_s->p2p_join_scan_count);
2452 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
2453 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
2454 " for join operationg - stop join attempt",
2455 MAC2STR(wpa_s->pending_join_iface_addr));
2456 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2457 wpa_msg(wpa_s->parent, MSG_INFO,
2458 P2P_EVENT_GROUP_FORMATION_FAILURE);
2459 }
2460}
2461
2462
ef922c4a
JM		 2463static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2464 struct wpa_scan_results *scan_res)
b22128ef
JM		 2465{
2466 struct wpa_bss *bss;
f8d0131a 2467 int freq;
54960629 2468 u8 iface_addr[ETH_ALEN];
b22128ef 2469
ef922c4a 2470 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 2471
ef922c4a
JM		 2472 if (wpa_s->global->p2p_disabled)
2473 return;
b22128ef 2474
ef922c4a
JM		 2475 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2476 scan_res ? (int) scan_res->num : -1);
2477
2478 if (scan_res)
2479 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 2480
f8d0131a
JM		 2481 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2482 wpa_s->pending_join_iface_addr);
54960629
AL		 2483 if (freq < 0 &&
2484 p2p_get_interface_addr(wpa_s->global->p2p,
2485 wpa_s->pending_join_dev_addr,
2486 iface_addr) == 0 &&
2487 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
2488 {
2489 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
2490 "address for join from " MACSTR " to " MACSTR
2491 " based on newly discovered P2P peer entry",
2492 MAC2STR(wpa_s->pending_join_iface_addr),
2493 MAC2STR(iface_addr));
2494 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
2495 ETH_ALEN);
2496
2497 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2498 wpa_s->pending_join_iface_addr);
2499 }
f8d0131a
JM		 2500 if (freq >= 0) {
2501 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2502 "from P2P peer table: %d MHz", freq);
2503 }
ef922c4a 2504 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
b22128ef 2505 if (bss) {
f8d0131a
JM		 2506 freq = bss->freq;
2507 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2508 "from BSS table: %d MHz", freq);
2509 }
2510 if (freq > 0) {
b22128ef
JM		 2511 u16 method;
2512
2513 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2514 "prior to joining an existing group (GO " MACSTR
2515 " freq=%u MHz)",
f8d0131a 2516 MAC2STR(wpa_s->pending_join_dev_addr), freq);
b22128ef
JM		 2517 wpa_s->pending_pd_before_join = 1;
2518
ef922c4a 2519 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 2520 case WPS_PIN_DISPLAY:
2521 method = WPS_CONFIG_KEYPAD;
2522 break;
2523 case WPS_PIN_KEYPAD:
2524 method = WPS_CONFIG_DISPLAY;
2525 break;
2526 case WPS_PBC:
2527 method = WPS_CONFIG_PUSHBUTTON;
2528 break;
2529 default:
2530 method = 0;
2531 break;
2532 }
2533
ec437d9e
JJ		 2534 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
2535 wpa_s->pending_join_dev_addr) ==
2536 method)) {
2537 /*
2538 * We have already performed provision discovery for
2539 * joining the group. Proceed directly to join
2540 * operation without duplicated provision discovery. */
e3a0706b 2541 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
ec437d9e
JJ		 2542 "with " MACSTR " already done - proceed to "
2543 "join",
2544 MAC2STR(wpa_s->pending_join_dev_addr));
2545 wpa_s->pending_pd_before_join = 0;
2546 goto start;
2547 }
2548
ef922c4a
JM		 2549 if (p2p_prov_disc_req(wpa_s->global->p2p,
2550 wpa_s->pending_join_dev_addr, method, 1)
b22128ef
JM		 2551 < 0) {
2552 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2553 "Discovery Request before joining an "
2554 "existing group");
2555 wpa_s->pending_pd_before_join = 0;
2556 goto start;
2557 }
2558
2559 /*
2560 * Actual join operation will be started from the Action frame
2561 * TX status callback.
2562 */
ef922c4a 2563 return;
b22128ef
JM		 2564 }
2565
9b1ab931
JM		 2566 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
2567 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2568 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2569 wpas_p2p_check_join_scan_limit(wpa_s);
2570 return;
b22128ef
JM		 2571
2572start:
2573 /* Start join operation immediately */
ef922c4a
JM		 2574 wpas_p2p_join_start(wpa_s);
2575}
2576
2577
2578static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2579{
2580 struct wpa_supplicant *wpa_s = eloop_ctx;
2581 int ret;
2582 struct wpa_driver_scan_params params;
2583 struct wpabuf *wps_ie, *ies;
206e1f42 2584 size_t ielen;
ef922c4a
JM		 2585
2586 os_memset(&params, 0, sizeof(params));
2587
2588 /* P2P Wildcard SSID */
2589 params.num_ssids = 1;
2590 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2591 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2592
2593 wpa_s->wps->dev.p2p = 1;
2594 wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
046ef4aa 2595 WPS_REQ_ENROLLEE, 0, NULL);
ef922c4a
JM		 2596 if (wps_ie == NULL) {
2597 wpas_p2p_scan_res_join(wpa_s, NULL);
2598 return;
2599 }
2600
206e1f42
JM		 2601 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
2602 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
ef922c4a
JM		 2603 if (ies == NULL) {
2604 wpabuf_free(wps_ie);
2605 wpas_p2p_scan_res_join(wpa_s, NULL);
2606 return;
2607 }
2608 wpabuf_put_buf(ies, wps_ie);
2609 wpabuf_free(wps_ie);
2610
2611 p2p_scan_ie(wpa_s->global->p2p, ies);
2612
47185fc7 2613 params.p2p_probe = 1;
ef922c4a
JM		 2614 params.extra_ies = wpabuf_head(ies);
2615 params.extra_ies_len = wpabuf_len(ies);
2616
2617 /*
2618 * Run a scan to update BSS table and start Provision Discovery once
2619 * the new scan results become available.
2620 */
2621 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
17fbb751 2622 ret = wpa_drv_scan(wpa_s, &params);
ef922c4a
JM		 2623
2624 wpabuf_free(ies);
2625
2626 if (ret) {
2627 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2628 "try again later");
2629 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2630 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
9b1ab931 2631 wpas_p2p_check_join_scan_limit(wpa_s);
ef922c4a
JM		 2632 }
2633}
2634
2635
2636static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2637 const u8 *dev_addr, enum p2p_wps_method wps_method)
2638{
2639 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2640 MACSTR " dev " MACSTR ")",
2641 MAC2STR(iface_addr), MAC2STR(dev_addr));
2642
2643 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2644 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2645 wpa_s->pending_join_wps_method = wps_method;
2646
2647 /* Make sure we are not running find during connection establishment */
2648 wpas_p2p_stop_find(wpa_s);
2649
9b1ab931 2650 wpa_s->p2p_join_scan_count = 0;
ef922c4a
JM		 2651 wpas_p2p_join_scan(wpa_s, NULL);
2652 return 0;
b22128ef
JM		 2653}
2654
2655
2656static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2657{
2658 struct wpa_supplicant *group;
2659 struct p2p_go_neg_results res;
2660
2661 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2662 if (group == NULL)
2663 return -1;
3c5126a4 2664 if (group != wpa_s) {
b22128ef
JM		 2665 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2666 sizeof(group->p2p_pin));
3c5126a4
JM		 2667 group->p2p_wps_method = wpa_s->p2p_wps_method;
2668 }
b22128ef
JM		 2669
2670 group->p2p_in_provisioning = 1;
2671
2672 os_memset(&res, 0, sizeof(res));
2673 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2674 ETH_ALEN);
2675 res.wps_method = wpa_s->pending_join_wps_method;
2676 wpas_start_wps_enrollee(group, &res);
2677
3094d483
JM		 2678 /*
2679 * Allow a longer timeout for join-a-running-group than normal 15
2680 * second group formation timeout since the GO may not have authorized
2681 * our connection yet.
2682 */
2683 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2684 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
2685 wpa_s, NULL);
2686
b22128ef
JM		 2687 return 0;
2688}
2689
2690
2691/**
2692 * wpas_p2p_connect - Request P2P Group Formation to be started
2693 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2694 * @peer_addr: Address of the peer P2P Device
2695 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2696 * @persistent_group: Whether to create a persistent group
2697 * @join: Whether to join an existing group (as a client) instead of starting
2698 * Group Owner negotiation; @peer_addr is BSSID in that case
2699 * @auth: Whether to only authorize the connection instead of doing that and
2700 * initiating Group Owner negotiation
2701 * @go_intent: GO Intent or -1 to use default
2702 * @freq: Frequency for the group or 0 for auto-selection
d054a462
JM		 2703 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
2704 * failure, -2 on failure due to channel not currently available,
2705 * -3 if forced channel is not supported
b22128ef
JM		 2706 */
2707int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2708 const char *pin, enum p2p_wps_method wps_method,
2709 int persistent_group, int join, int auth, int go_intent,
2710 int freq)
2711{
d054a462 2712 int force_freq = 0, oper_freq = 0;
b22128ef
JM		 2713 u8 bssid[ETH_ALEN];
2714 int ret = 0;
2715 enum wpa_driver_if_type iftype;
6cad95db 2716 const u8 *if_addr;
b22128ef 2717
9526fd29
JM		 2718 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2719 return -1;
2720
b22128ef
JM		 2721 if (go_intent < 0)
2722 go_intent = wpa_s->conf->p2p_go_intent;
2723
2724 if (!auth)
2725 wpa_s->p2p_long_listen = 0;
2726
3c5126a4
JM		 2727 wpa_s->p2p_wps_method = wps_method;
2728
b22128ef
JM		 2729 if (pin)
2730 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2731 else if (wps_method == WPS_PIN_DISPLAY) {
2732 ret = wps_generate_pin();
2733 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2734 ret);
2735 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2736 wpa_s->p2p_pin);
2737 } else
2738 wpa_s->p2p_pin[0] = '\0';
2739
2740 if (join) {
4147a2cc 2741 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
108def93
JM		 2742 if (auth) {
2743 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2744 "connect a running group from " MACSTR,
2745 MAC2STR(peer_addr));
2746 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2747 return ret;
2748 }
4147a2cc 2749 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
b22128ef 2750 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4147a2cc 2751 iface_addr) < 0) {
b22128ef 2752 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4147a2cc
JM		 2753 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
2754 dev_addr);
2755 }
2756 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) <
b22128ef
JM		 2757 0)
2758 return -1;
2759 return ret;
2760 }
2761
d054a462
JM		 2762 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2763 wpa_s->assoc_freq)
2764 oper_freq = wpa_s->assoc_freq;
b22128ef 2765 else {
d054a462
JM		 2766 oper_freq = wpa_drv_shared_freq(wpa_s);
2767 if (oper_freq < 0)
2768 oper_freq = 0;
b22128ef
JM		 2769 }
2770
d054a462
JM		 2771 if (freq > 0) {
2772 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
2773 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
2774 "(%u MHz) is not supported for P2P uses",
2775 freq);
2776 return -3;
2777 }
2778
2779 if (oper_freq > 0 && freq != oper_freq &&
2780 !(wpa_s->drv_flags &
2781 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2782 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2783 "on %u MHz while connected on another "
2784 "channel (%u MHz)", freq, oper_freq);
2785 return -2;
2786 }
2787 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2788 "requested channel (%u MHz)", freq);
2789 force_freq = freq;
2790 } else if (oper_freq > 0 &&
2791 !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
2792 if (!(wpa_s->drv_flags &
2793 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2794 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2795 "while connected on non-P2P supported "
2796 "channel (%u MHz)", oper_freq);
2797 return -2;
2798 }
2799 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
2800 "(%u MHz) not available for P2P - try to use "
2801 "another channel", oper_freq);
2802 force_freq = 0;
2803 } else if (oper_freq > 0) {
b22128ef
JM		 2804 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2805 "channel we are already using (%u MHz) on another "
d054a462
JM		 2806 "interface", oper_freq);
2807 force_freq = oper_freq;
b22128ef
JM		 2808 }
2809
2810 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
2811
6cad95db
JB		 2812 if (wpa_s->create_p2p_iface) {
2813 /* Prepare to add a new interface for the group */
2814 iftype = WPA_IF_P2P_GROUP;
2815 if (go_intent == 15)
2816 iftype = WPA_IF_P2P_GO;
2817 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
2818 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2819 "interface for the group");
b22128ef 2820 return -1;
6cad95db 2821 }
b22128ef 2822
6cad95db
JB		 2823 if_addr = wpa_s->pending_interface_addr;
2824 } else
2825 if_addr = wpa_s->own_addr;
b22128ef
JM		 2826
2827 if (auth) {
2828 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
6cad95db 2829 go_intent, if_addr,
b22128ef
JM		 2830 force_freq, persistent_group) < 0)
2831 return -1;
2832 return ret;
2833 }
6cad95db
JB		 2834
2835 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
2836 go_intent, if_addr, force_freq,
2837 persistent_group) < 0) {
2838 if (wpa_s->create_p2p_iface)
2839 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 2840 return -1;
2841 }
2842 return ret;
2843}
2844
2845
2846/**
2847 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
2848 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2849 * @freq: Frequency of the channel in MHz
2850 * @duration: Duration of the stay on the channel in milliseconds
2851 *
2852 * This callback is called when the driver indicates that it has started the
2853 * requested remain-on-channel duration.
2854 */
2855void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2856 unsigned int freq, unsigned int duration)
2857{
9526fd29
JM		 2858 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2859 return;
b22128ef
JM		 2860 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
2861 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
2862 wpa_s->pending_listen_duration);
2863 wpa_s->pending_listen_freq = 0;
2864 }
2865}
2866
2867
2868static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
2869 unsigned int timeout)
2870{
2871 /* Limit maximum Listen state time based on driver limitation. */
2872 if (timeout > wpa_s->max_remain_on_chan)
2873 timeout = wpa_s->max_remain_on_chan;
2874
3ac17eba
JM		 2875 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2876 return wpa_drv_p2p_listen(wpa_s, timeout);
2877
b22128ef
JM		 2878 return p2p_listen(wpa_s->global->p2p, timeout);
2879}
2880
2881
2882/**
2883 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
2884 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2885 * @freq: Frequency of the channel in MHz
2886 *
2887 * This callback is called when the driver indicates that a remain-on-channel
2888 * operation has been completed, i.e., the duration on the requested channel
2889 * has timed out.
2890 */
2891void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2892 unsigned int freq)
2893{
1cc3a29d 2894 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
11fb02be 2895 "(p2p_long_listen=%d ms pending_action_tx=%p)",
1cc3a29d 2896 wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
9526fd29
JM		 2897 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2898 return;
b22128ef
JM		 2899 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
2900 return; /* P2P module started a new operation */
2901 if (wpa_s->pending_action_tx)
2902 return;
2903 if (wpa_s->p2p_long_listen > 0)
11fb02be 2904 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
b22128ef
JM		 2905 if (wpa_s->p2p_long_listen > 0) {
2906 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
11fb02be 2907 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
b22128ef
JM		 2908 }
2909}
2910
2911
2912/**
2913 * wpas_p2p_group_remove - Remove a P2P group
2914 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2915 * @ifname: Network interface name of the group interface or "*" to remove all
2916 * groups
2917 * Returns: 0 on success, -1 on failure
2918 *
2919 * This function is used to remove a P2P group. This can be used to disconnect
2920 * from a group in which the local end is a P2P Client or to end a P2P Group in
2921 * case the local end is the Group Owner. If a virtual network interface was
2922 * created for this group, that interface will be removed. Otherwise, only the
2923 * configured P2P group network will be removed from the interface.
2924 */
2925int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
2926{
2927 struct wpa_global *global = wpa_s->global;
2928
2929 if (os_strcmp(ifname, "*") == 0) {
2930 struct wpa_supplicant *prev;
2931 wpa_s = global->ifaces;
2932 while (wpa_s) {
2933 prev = wpa_s;
2934 wpa_s = wpa_s->next;
3103f345 2935 wpas_p2p_disconnect(prev);
b22128ef
JM		 2936 }
2937 return 0;
2938 }
2939
2940 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2941 if (os_strcmp(wpa_s->ifname, ifname) == 0)
2942 break;
2943 }
2944
3103f345 2945 return wpas_p2p_disconnect(wpa_s);
b22128ef
JM		 2946}
2947
2948
2949static void wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
2950 struct p2p_go_neg_results *params,
2951 int freq)
2952{
2953 u8 bssid[ETH_ALEN];
2954 int res;
2955
2956 os_memset(params, 0, sizeof(*params));
2957 params->role_go = 1;
7cfc4ac3
AGS		 2958 if (freq) {
2959 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
2960 "frequency %d MHz", freq);
b22128ef 2961 params->freq = freq;
7cfc4ac3
AGS		 2962 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
2963 wpa_s->conf->p2p_oper_channel >= 1 &&
2964 wpa_s->conf->p2p_oper_channel <= 11) {
b22128ef 2965 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 2966 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
2967 "frequency %d MHz", params->freq);
2968 } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
64f99265 2969 wpa_s->conf->p2p_oper_reg_class == 124) {
b22128ef 2970 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 2971 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
2972 "frequency %d MHz", params->freq);
2973 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
2974 wpa_s->best_overall_freq > 0 &&
2975 p2p_supported_freq(wpa_s->global->p2p,
2976 wpa_s->best_overall_freq)) {
2977 params->freq = wpa_s->best_overall_freq;
2978 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
2979 "channel %d MHz", params->freq);
2980 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
2981 wpa_s->best_24_freq > 0 &&
2982 p2p_supported_freq(wpa_s->global->p2p,
2983 wpa_s->best_24_freq)) {
2984 params->freq = wpa_s->best_24_freq;
2985 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
2986 "channel %d MHz", params->freq);
2987 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
2988 wpa_s->best_5_freq > 0 &&
2989 p2p_supported_freq(wpa_s->global->p2p,
2990 wpa_s->best_5_freq)) {
2991 params->freq = wpa_s->best_5_freq;
2992 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
2993 "channel %d MHz", params->freq);
2994 } else {
2995 params->freq = 2412;
2996 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
2997 "known)", params->freq);
2998 }
2999
b22128ef
JM		 3000 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3001 wpa_s->assoc_freq && !freq) {
3002 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3003 "already using");
3004 params->freq = wpa_s->assoc_freq;
3005 }
3006
3007 res = wpa_drv_shared_freq(wpa_s);
3008 if (res > 0 && !freq) {
3009 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3010 "already using on a shared interface");
3011 params->freq = res;
3012 }
3013}
3014
3015
3016static struct wpa_supplicant *
3017wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3018 int go)
3019{
3020 struct wpa_supplicant *group_wpa_s;
3021
3022 if (!wpas_p2p_create_iface(wpa_s))
3023 return wpa_s;
3024
3025 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3026 WPA_IF_P2P_CLIENT) < 0)
3027 return NULL;
3028 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3029 if (group_wpa_s == NULL) {
3030 wpas_p2p_remove_pending_group_interface(wpa_s);
3031 return NULL;
3032 }
3033
3034 return group_wpa_s;
3035}
3036
3037
3038/**
3039 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3040 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3041 * @persistent_group: Whether to create a persistent group
3042 * @freq: Frequency for the group or 0 to indicate no hardcoding
3043 * Returns: 0 on success, -1 on failure
3044 *
3045 * This function creates a new P2P group with the local end as the Group Owner,
3046 * i.e., without using Group Owner Negotiation.
3047 */
3048int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
3049 int freq)
3050{
3051 struct p2p_go_neg_results params;
7cfc4ac3
AGS		 3052 unsigned int r;
3053
9526fd29
JM		 3054 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3055 return -1;
3056
2d4f15d6
JJ		 3057 /* Make sure we are not running find during connection establishment */
3058 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
3059 wpas_p2p_stop_find(wpa_s);
3060
7cfc4ac3
AGS		 3061 if (freq == 2) {
3062 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3063 "band");
3064 if (wpa_s->best_24_freq > 0 &&
3065 p2p_supported_freq(wpa_s->global->p2p,
3066 wpa_s->best_24_freq)) {
3067 freq = wpa_s->best_24_freq;
3068 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3069 "channel: %d MHz", freq);
3070 } else {
3071 os_get_random((u8 *) &r, sizeof(r));
3072 freq = 2412 + (r % 3) * 25;
3073 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3074 "channel: %d MHz", freq);
3075 }
3076 }
3077
3078 if (freq == 5) {
3079 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3080 "band");
3081 if (wpa_s->best_5_freq > 0 &&
3082 p2p_supported_freq(wpa_s->global->p2p,
3083 wpa_s->best_5_freq)) {
3084 freq = wpa_s->best_5_freq;
3085 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3086 "channel: %d MHz", freq);
3087 } else {
3088 os_get_random((u8 *) &r, sizeof(r));
3089 freq = 5180 + (r % 4) * 20;
3090 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3091 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3092 "5 GHz channel for P2P group");
3093 return -1;
3094 }
3095 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3096 "channel: %d MHz", freq);
3097 }
3098 }
b22128ef 3099
4ae4650b
JM		 3100 if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3101 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3102 "(%u MHz) is not supported for P2P uses",
3103 freq);
3104 return -1;
3105 }
3106
b22128ef
JM		 3107 wpas_p2p_init_go_params(wpa_s, &params, freq);
3108 p2p_go_params(wpa_s->global->p2p, &params);
3109 params.persistent_group = persistent_group;
3110
3111 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3112 if (wpa_s == NULL)
3113 return -1;
3114 wpas_start_wps_go(wpa_s, &params, 0);
3115
3116 return 0;
3117}
3118
3119
3120static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3121 struct wpa_ssid *params, int addr_allocated)
3122{
3123 struct wpa_ssid *ssid;
3124
3125 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3126 if (wpa_s == NULL)
3127 return -1;
3128
3129 wpa_supplicant_ap_deinit(wpa_s);
3130
3131 ssid = wpa_config_add_network(wpa_s->conf);
3132 if (ssid == NULL)
3133 return -1;
b22128ef
JM		 3134 wpa_config_set_network_defaults(ssid);
3135 ssid->temporary = 1;
3136 ssid->proto = WPA_PROTO_RSN;
3137 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3138 ssid->group_cipher = WPA_CIPHER_CCMP;
3139 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3140 ssid->ssid = os_malloc(params->ssid_len);
3141 if (ssid->ssid == NULL) {
b22128ef
JM		 3142 wpa_config_remove_network(wpa_s->conf, ssid->id);
3143 return -1;
3144 }
3145 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3146 ssid->ssid_len = params->ssid_len;
3147 ssid->p2p_group = 1;
d1c8ac88 3148 ssid->export_keys = 1;
b22128ef
JM		 3149 if (params->psk_set) {
3150 os_memcpy(ssid->psk, params->psk, 32);
3151 ssid->psk_set = 1;
3152 }
3153 if (params->passphrase)
3154 ssid->passphrase = os_strdup(params->passphrase);
3155
3156 wpa_supplicant_select_network(wpa_s, ssid);
3157
3158 wpa_s->show_group_started = 1;
3159
3160 return 0;
3161}
3162
3163
3164int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3165 struct wpa_ssid *ssid, int addr_allocated,
3166 int freq)
3167{
3168 struct p2p_go_neg_results params;
6c0da49f 3169 int go = 0;
b22128ef
JM		 3170
3171 if (ssid->disabled != 2 || ssid->ssid == NULL)
3172 return -1;
3173
6c0da49f
JM		 3174 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
3175 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
3176 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
3177 "already running");
3178 return 0;
3179 }
3180
9d39057c
JM		 3181 /* Make sure we are not running find during connection establishment */
3182 wpas_p2p_stop_find(wpa_s);
b22128ef
JM		 3183
3184 if (ssid->mode == WPAS_MODE_INFRA)
3185 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
3186
3187 if (ssid->mode != WPAS_MODE_P2P_GO)
3188 return -1;
3189
3190 wpas_p2p_init_go_params(wpa_s, &params, freq);
3191
3192 params.role_go = 1;
3193 if (ssid->passphrase == NULL ||
3194 os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
3195 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
3196 "group");
3197 return -1;
3198 }
3199 os_strlcpy(params.passphrase, ssid->passphrase,
3200 sizeof(params.passphrase));
3201 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
3202 params.ssid_len = ssid->ssid_len;
3203 params.persistent_group = 1;
3204
3205 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
3206 if (wpa_s == NULL)
3207 return -1;
3208
3209 wpas_start_wps_go(wpa_s, &params, 0);
3210
3211 return 0;
3212}
3213
3214
3215static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
3216 struct wpabuf *proberesp_ies)
3217{
3218 struct wpa_supplicant *wpa_s = ctx;
3219 if (wpa_s->ap_iface) {
3220 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
adc33680
JM		 3221 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
3222 wpabuf_free(beacon_ies);
3223 wpabuf_free(proberesp_ies);
3224 return;
3225 }
b22128ef
JM		 3226 if (beacon_ies) {
3227 wpabuf_free(hapd->p2p_beacon_ie);
3228 hapd->p2p_beacon_ie = beacon_ies;
3229 }
3230 wpabuf_free(hapd->p2p_probe_resp_ie);
3231 hapd->p2p_probe_resp_ie = proberesp_ies;
3232 } else {
3233 wpabuf_free(beacon_ies);
3234 wpabuf_free(proberesp_ies);
3235 }
3236 wpa_supplicant_ap_update_beacon(wpa_s);
3237}
3238
3239
3071e181
JM		 3240static void wpas_p2p_idle_update(void *ctx, int idle)
3241{
3242 struct wpa_supplicant *wpa_s = ctx;
3243 if (!wpa_s->ap_iface)
3244 return;
3245 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
3246 if (idle)
3247 wpas_p2p_set_group_idle_timeout(wpa_s);
3248 else
3249 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3250}
3251
3252
b22128ef
JM		 3253struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
3254 int persistent_group,
3255 int group_formation)
3256{
3257 struct p2p_group *group;
3258 struct p2p_group_config *cfg;
3259
3ac17eba
JM		 3260 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3261 return NULL;
9526fd29
JM		 3262 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3263 return NULL;
3ac17eba 3264
b22128ef
JM		 3265 cfg = os_zalloc(sizeof(*cfg));
3266 if (cfg == NULL)
3267 return NULL;
3268
acc247b2
JM		 3269 if (persistent_group && wpa_s->conf->persistent_reconnect)
3270 cfg->persistent_group = 2;
3271 else if (persistent_group)
3272 cfg->persistent_group = 1;
b22128ef 3273 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3f4ce13f
JM		 3274 if (wpa_s->max_stations &&
3275 wpa_s->max_stations < wpa_s->conf->max_num_sta)
3276 cfg->max_clients = wpa_s->max_stations;
3277 else
3278 cfg->max_clients = wpa_s->conf->max_num_sta;
b22128ef
JM		 3279 cfg->cb_ctx = wpa_s;
3280 cfg->ie_update = wpas_p2p_ie_update;
3071e181 3281 cfg->idle_update = wpas_p2p_idle_update;
b22128ef
JM		 3282
3283 group = p2p_group_init(wpa_s->global->p2p, cfg);
3284 if (group == NULL)
3285 os_free(cfg);
3286 if (!group_formation)
3287 p2p_group_notif_formation_done(group);
3288 wpa_s->p2p_group = group;
3289 return group;
3290}
3291
3292
3293void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3294 int registrar)
3295{
3296 if (!wpa_s->p2p_in_provisioning) {
3297 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
3298 "provisioning not in progress");
3299 return;
3300 }
3301
ec437d9e
JJ		 3302 /* Clear any stored provisioning info */
3303 p2p_clear_provisioning_info(wpa_s->global->p2p, peer_addr);
3304
b22128ef
JM		 3305 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
3306 NULL);
3307 if (wpa_s->global->p2p)
3308 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
3ac17eba
JM		 3309 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3310 wpa_drv_wps_success_cb(wpa_s, peer_addr);
b22128ef
JM		 3311 wpas_group_formation_completed(wpa_s, 1);
3312}
3313
3314
3734552f
JS		 3315void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
3316 struct wps_event_fail *fail)
3317{
3318 if (!wpa_s->p2p_in_provisioning) {
3319 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
3320 "provisioning not in progress");
3321 return;
3322 }
ec437d9e
JJ		 3323
3324 if (wpa_s->go_params) {
3325 p2p_clear_provisioning_info(
3326 wpa_s->global->p2p,
3327 wpa_s->go_params->peer_interface_addr);
3328 }
3329
3734552f
JS		 3330 wpas_notify_p2p_wps_failed(wpa_s, fail);
3331}
3332
3333
b22128ef 3334int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
8c5f7309 3335 const char *config_method, int join)
b22128ef
JM		 3336{
3337 u16 config_methods;
3338
8c5f7309 3339 if (os_strncmp(config_method, "display", 7) == 0)
b22128ef 3340 config_methods = WPS_CONFIG_DISPLAY;
8c5f7309 3341 else if (os_strncmp(config_method, "keypad", 6) == 0)
b22128ef 3342 config_methods = WPS_CONFIG_KEYPAD;
8c5f7309
JJ		 3343 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
3344 os_strncmp(config_method, "pushbutton", 10) == 0)
b22128ef 3345 config_methods = WPS_CONFIG_PUSHBUTTON;
8c5f7309
JJ		 3346 else {
3347 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
b22128ef 3348 return -1;
8c5f7309 3349 }
b22128ef 3350
3ac17eba
JM		 3351 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3352 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
8c5f7309 3353 config_methods, join);
3ac17eba
JM		 3354 }
3355
9526fd29 3356 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef
JM		 3357 return -1;
3358
3359 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
8c5f7309 3360 config_methods, join);
b22128ef
JM		 3361}
3362
3363
3364int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
3365 char *end)
3366{
3367 return p2p_scan_result_text(ies, ies_len, buf, end);
3368}
3369
3370
1cc3a29d
JM		 3371static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
3372{
3373 if (!wpa_s->pending_action_tx)
3374 return;
3375
3376 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
3377 "operation request");
3378 wpabuf_free(wpa_s->pending_action_tx);
3379 wpa_s->pending_action_tx = NULL;
3380}
3381
3382
b22128ef 3383int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
046ef4aa
JMB		 3384 enum p2p_discovery_type type,
3385 unsigned int num_req_dev_types, const u8 *req_dev_types)
b22128ef 3386{
1cc3a29d 3387 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef
JM		 3388 wpa_s->p2p_long_listen = 0;
3389
3ac17eba
JM		 3390 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3391 return wpa_drv_p2p_find(wpa_s, timeout, type);
3392
9526fd29
JM		 3393 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3394 return -1;
3395
046ef4aa
JMB		 3396 return p2p_find(wpa_s->global->p2p, timeout, type,
3397 num_req_dev_types, req_dev_types);
b22128ef
JM		 3398}
3399
3400
3401void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
3402{
1cc3a29d 3403 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef 3404 wpa_s->p2p_long_listen = 0;
9d39057c 3405 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
ef922c4a 3406 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
39185dfa 3407 wpa_s->p2p_cb_on_scan_complete = 0;
b22128ef 3408
3ac17eba
JM		 3409 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3410 wpa_drv_p2p_stop_find(wpa_s);
3411 return;
3412 }
3413
9526fd29
JM		 3414 if (wpa_s->global->p2p)
3415 p2p_stop_find(wpa_s->global->p2p);
b22128ef
JM		 3416
3417 wpas_p2p_remove_pending_group_interface(wpa_s);
3418}
3419
3420
3421static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3422{
3423 struct wpa_supplicant *wpa_s = eloop_ctx;
3424 wpa_s->p2p_long_listen = 0;
3425}
3426
3427
3428int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
3429{
3430 int res;
3431
9526fd29
JM		 3432 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3433 return -1;
3434
1cc3a29d
JM		 3435 wpas_p2p_clear_pending_action_tx(wpa_s);
3436
b22128ef
JM		 3437 if (timeout == 0) {
3438 /*
3439 * This is a request for unlimited Listen state. However, at
3440 * least for now, this is mapped to a Listen state for one
3441 * hour.
3442 */
3443 timeout = 3600;
3444 }
3445 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3446 wpa_s->p2p_long_listen = 0;
3447
2bb747e2
JM		 3448 /*
3449 * Stop previous find/listen operation to avoid trying to request a new
3450 * remain-on-channel operation while the driver is still running the
3451 * previous one.
3452 */
3453 if (wpa_s->global->p2p)
3454 p2p_stop_find(wpa_s->global->p2p);
3455
b22128ef
JM		 3456 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
3457 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
11fb02be 3458 wpa_s->p2p_long_listen = timeout * 1000;
b22128ef
JM		 3459 eloop_register_timeout(timeout, 0,
3460 wpas_p2p_long_listen_timeout,
3461 wpa_s, NULL);
3462 }
3463
3464 return res;
3465}
3466
3467
4c08c0bd 3468int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 3469 u8 *buf, size_t len, int p2p_group)
3470{
4c08c0bd
JM		 3471 struct wpabuf *p2p_ie;
3472 int ret;
3473
b22128ef
JM		 3474 if (wpa_s->global->p2p_disabled)
3475 return -1;
3476 if (wpa_s->global->p2p == NULL)
3477 return -1;
e1f1509b
JM		 3478 if (bss == NULL)
3479 return -1;
b22128ef 3480
4c08c0bd
JM		 3481 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3482 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3483 p2p_group, p2p_ie);
3484 wpabuf_free(p2p_ie);
3485
3486 return ret;
b22128ef
JM		 3487}
3488
3489
3490int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
04a85e44 3491 const u8 *dst, const u8 *bssid,
b22128ef
JM		 3492 const u8 *ie, size_t ie_len)
3493{
3494 if (wpa_s->global->p2p_disabled)
3495 return 0;
3496 if (wpa_s->global->p2p == NULL)
3497 return 0;
3498
04a85e44
JM		 3499 return p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
3500 ie, ie_len);
b22128ef
JM		 3501}
3502
3503
3504void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3505 const u8 *sa, const u8 *bssid,
3506 u8 category, const u8 *data, size_t len, int freq)
3507{
3508 if (wpa_s->global->p2p_disabled)
3509 return;
3510 if (wpa_s->global->p2p == NULL)
3511 return;
3512
3513 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3514 freq);
3515}
3516
3517
3518void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3519{
3520 if (wpa_s->global->p2p_disabled)
3521 return;
3522 if (wpa_s->global->p2p == NULL)
3523 return;
3524
3525 p2p_scan_ie(wpa_s->global->p2p, ies);
3526}
3527
3528
3529void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3530{
3531 p2p_group_deinit(wpa_s->p2p_group);
3532 wpa_s->p2p_group = NULL;
a7fd39bb
JD		 3533
3534 wpa_s->ap_configured_cb = NULL;
3535 wpa_s->ap_configured_cb_ctx = NULL;
3536 wpa_s->ap_configured_cb_data = NULL;
3537 wpa_s->connect_without_scan = NULL;
b22128ef
JM		 3538}
3539
3540
3541int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3542{
3543 wpa_s->p2p_long_listen = 0;
3544
3ac17eba
JM		 3545 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3546 return wpa_drv_p2p_reject(wpa_s, addr);
3547
9526fd29
JM		 3548 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3549 return -1;
3550
b22128ef
JM		 3551 return p2p_reject(wpa_s->global->p2p, addr);
3552}
3553
3554
3555/* Invite to reinvoke a persistent group */
3556int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3557 struct wpa_ssid *ssid, const u8 *go_dev_addr)
3558{
3559 enum p2p_invite_role role;
3560 u8 *bssid = NULL;
3561
3562 if (ssid->mode == WPAS_MODE_P2P_GO) {
3563 role = P2P_INVITE_ROLE_GO;
3564 if (peer_addr == NULL) {
3565 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3566 "address in invitation command");
3567 return -1;
3568 }
3569 if (wpas_p2p_create_iface(wpa_s)) {
3570 if (wpas_p2p_add_group_interface(wpa_s,
3571 WPA_IF_P2P_GO) < 0) {
3572 wpa_printf(MSG_ERROR, "P2P: Failed to "
3573 "allocate a new interface for the "
3574 "group");
3575 return -1;
3576 }
3577 bssid = wpa_s->pending_interface_addr;
3578 } else
3579 bssid = wpa_s->own_addr;
3580 } else {
3581 role = P2P_INVITE_ROLE_CLIENT;
3582 peer_addr = ssid->bssid;
3583 }
3584 wpa_s->pending_invite_ssid_id = ssid->id;
3585
3ac17eba
JM		 3586 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3587 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3588 ssid->ssid, ssid->ssid_len,
3589 go_dev_addr, 1);
3590
9526fd29
JM		 3591 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3592 return -1;
3593
b22128ef
JM		 3594 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3595 ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3596}
3597
3598
3599/* Invite to join an active group */
3600int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3601 const u8 *peer_addr, const u8 *go_dev_addr)
3602{
3603 struct wpa_global *global = wpa_s->global;
3604 enum p2p_invite_role role;
3605 u8 *bssid = NULL;
3606 struct wpa_ssid *ssid;
3607
3608 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3609 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3610 break;
3611 }
3612 if (wpa_s == NULL) {
3613 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3614 return -1;
3615 }
3616
3617 ssid = wpa_s->current_ssid;
3618 if (ssid == NULL) {
3619 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3620 "invitation");
3621 return -1;
3622 }
3623
3624 if (ssid->mode == WPAS_MODE_P2P_GO) {
3625 role = P2P_INVITE_ROLE_ACTIVE_GO;
3626 bssid = wpa_s->own_addr;
3627 if (go_dev_addr == NULL)
2e062d5d 3628 go_dev_addr = wpa_s->parent->own_addr;
b22128ef
JM		 3629 } else {
3630 role = P2P_INVITE_ROLE_CLIENT;
3631 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3632 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3633 "invite to current group");
3634 return -1;
3635 }
3636 bssid = wpa_s->bssid;
3637 if (go_dev_addr == NULL &&
3638 !is_zero_ether_addr(wpa_s->go_dev_addr))
3639 go_dev_addr = wpa_s->go_dev_addr;
3640 }
bb79dc72 3641 wpa_s->parent->pending_invite_ssid_id = -1;
b22128ef 3642
3ac17eba
JM		 3643 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3644 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3645 ssid->ssid, ssid->ssid_len,
3646 go_dev_addr, 0);
3647
9526fd29
JM		 3648 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3649 return -1;
3650
b22128ef 3651 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
d9d6a58c
JM		 3652 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
3653 go_dev_addr, 0);
b22128ef
JM		 3654}
3655
3656
3657void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3658{
3659 struct wpa_ssid *ssid = wpa_s->current_ssid;
3660 const char *ssid_txt;
3661 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 3662 int network_id = -1;
b22128ef 3663 int persistent;
b49d6ccb 3664 int freq;
b22128ef
JM		 3665
3666 if (!wpa_s->show_group_started || !ssid)
3667 return;
3668
3669 wpa_s->show_group_started = 0;
3670
3671 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3672 os_memset(go_dev_addr, 0, ETH_ALEN);
3673 if (ssid->bssid_set)
3674 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3675 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3676 ssid->ssid_len);
3677 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3678
a0a9f3b0
JM		 3679 if (wpa_s->global->p2p_group_formation == wpa_s)
3680 wpa_s->global->p2p_group_formation = NULL;
3681
b49d6ccb
JJ		 3682 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
3683 (int) wpa_s->assoc_freq;
b22128ef
JM		 3684 if (ssid->passphrase == NULL && ssid->psk_set) {
3685 char psk[65];
3686 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3687 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 3688 "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
3689 MACSTR "%s",
b49d6ccb 3690 wpa_s->ifname, ssid_txt, freq, psk,
c481048f 3691 MAC2STR(go_dev_addr),
b22128ef
JM		 3692 persistent ? " [PERSISTENT]" : "");
3693 } else {
3694 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 3695 "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
3696 "go_dev_addr=" MACSTR "%s",
b49d6ccb 3697 wpa_s->ifname, ssid_txt, freq,
b22128ef
JM		 3698 ssid->passphrase ? ssid->passphrase : "",
3699 MAC2STR(go_dev_addr),
3700 persistent ? " [PERSISTENT]" : "");
3701 }
3702
3703 if (persistent)
4b6baa2f
JMB		 3704 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
3705 ssid, go_dev_addr);
3706 if (network_id < 0)
3707 network_id = ssid->id;
3708 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
b22128ef
JM		 3709}
3710
3711
3712int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3713 u32 interval1, u32 duration2, u32 interval2)
3714{
3ac17eba
JM		 3715 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3716 return -1;
9526fd29
JM		 3717 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3718 return -1;
3ac17eba 3719
b22128ef
JM		 3720 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3721 wpa_s->current_ssid == NULL ||
3722 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3723 return -1;
3724
3725 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3726 wpa_s->own_addr, wpa_s->assoc_freq,
3727 duration1, interval1, duration2, interval2);
3728}
3729
3730
3731int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3732 unsigned int interval)
3733{
3ac17eba
JM		 3734 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3735 return -1;
3736
9526fd29
JM		 3737 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3738 return -1;
3739
b22128ef
JM		 3740 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3741}
3742
3743
3071e181
JM		 3744static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
3745{
3746 struct wpa_supplicant *wpa_s = eloop_ctx;
3747
3748 if (wpa_s->conf->p2p_group_idle == 0) {
3749 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
3750 "disabled");
3751 return;
3752 }
3753
3754 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
3755 "group");
3756 wpa_s->removal_reason = P2P_GROUP_REMOVAL_IDLE_TIMEOUT;
3757 wpas_p2p_group_delete(wpa_s);
3758}
3759
3760
3761static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
3762{
3763 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3764 if (wpa_s->conf->p2p_group_idle == 0)
3765 return;
3766
3767 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3768 return;
3769
3770 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
3771 wpa_s->conf->p2p_group_idle);
3772 eloop_register_timeout(wpa_s->conf->p2p_group_idle, 0,
3773 wpas_p2p_group_idle_timeout, wpa_s, NULL);
3774}
3775
3776
b22128ef
JM		 3777void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3778 u16 reason_code, const u8 *ie, size_t ie_len)
3779{
9526fd29 3780 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef 3781 return;
3ac17eba
JM		 3782 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3783 return;
b22128ef
JM		 3784
3785 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3786}
3787
3788
3789void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3790 u16 reason_code, const u8 *ie, size_t ie_len)
3791{
9526fd29 3792 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef 3793 return;
3ac17eba
JM		 3794 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3795 return;
b22128ef
JM		 3796
3797 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3798}
3799
3800
3801void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
3802{
3803 struct p2p_data *p2p = wpa_s->global->p2p;
3804
3805 if (p2p == NULL)
3806 return;
3807
4c010834
KL		 3808 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3809 return;
3810
b22128ef
JM		 3811 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
3812 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
3813
2f646b6e
JB		 3814 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
3815 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
b22128ef 3816
b6e01800
JM		 3817 if (wpa_s->wps &&
3818 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
3819 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
3820
3821 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
3822 p2p_set_uuid(p2p, wpa_s->wps->uuid);
3823
3824 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
3825 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
3826 p2p_set_model_name(p2p, wpa_s->conf->model_name);
3827 p2p_set_model_number(p2p, wpa_s->conf->model_number);
3828 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
3829 }
3830
2f646b6e
JB		 3831 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
3832 p2p_set_sec_dev_types(p2p,
3833 (void *) wpa_s->conf->sec_device_type,
3834 wpa_s->conf->num_sec_device_types);
b22128ef 3835
f95cac27
JMB		 3836 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
3837 int i;
3838 p2p_remove_wps_vendor_extensions(p2p);
3839 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
3840 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
3841 continue;
3842 p2p_add_wps_vendor_extension(
3843 p2p, wpa_s->conf->wps_vendor_ext[i]);
3844 }
3845 }
3846
b22128ef
JM		 3847 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
3848 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3849 char country[3];
3850 country[0] = wpa_s->conf->country[0];
3851 country[1] = wpa_s->conf->country[1];
3852 country[2] = 0x04;
3853 p2p_set_country(p2p, country);
3854 }
3855
3856 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
3857 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
3858 wpa_s->conf->p2p_ssid_postfix ?
3859 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
3860 0);
3861 }
0f66abd2
SS		 3862
3863 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
3864 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
2463ba70
JS		 3865
3866 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
3867 u8 reg_class, channel;
3868 int ret;
3869 unsigned int r;
3870 if (wpa_s->conf->p2p_listen_reg_class &&
3871 wpa_s->conf->p2p_listen_channel) {
3872 reg_class = wpa_s->conf->p2p_listen_reg_class;
3873 channel = wpa_s->conf->p2p_listen_channel;
3874 } else {
3875 reg_class = 81;
3876 /*
3877 * Pick one of the social channels randomly as the
3878 * listen channel.
3879 */
3880 os_get_random((u8 *) &r, sizeof(r));
3881 channel = 1 + (r % 3) * 5;
3882 }
3883 ret = p2p_set_listen_channel(p2p, reg_class, channel);
3884 if (ret)
3885 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
3886 "failed: %d", ret);
3887 }
3888 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
3889 u8 op_reg_class, op_channel, cfg_op_channel;
3890 int ret = 0;
3891 unsigned int r;
3892 if (wpa_s->conf->p2p_oper_reg_class &&
3893 wpa_s->conf->p2p_oper_channel) {
3894 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
3895 op_channel = wpa_s->conf->p2p_oper_channel;
3896 cfg_op_channel = 1;
3897 } else {
3898 op_reg_class = 81;
3899 /*
3900 * Use random operation channel from (1, 6, 11)
3901 *if no other preference is indicated.
3902 */
3903 os_get_random((u8 *) &r, sizeof(r));
3904 op_channel = 1 + (r % 3) * 5;
3905 cfg_op_channel = 0;
3906 }
3907 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
3908 cfg_op_channel);
3909 if (ret)
3910 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
3911 "failed: %d", ret);
3912 }
b22128ef 3913}
aefb53bd
JM		 3914
3915
3916int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
3917 int duration)
3918{
3919 if (!wpa_s->ap_iface)
3920 return -1;
3921 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
3922 duration);
3923}
72044390
JM		 3924
3925
3926int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
3927{
9526fd29 3928 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
72044390
JM		 3929 return -1;
3930 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3931 return -1;
3932
3933 wpa_s->global->cross_connection = enabled;
3934 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
3935
3936 if (!enabled) {
3937 struct wpa_supplicant *iface;
3938
3939 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
3940 {
3941 if (iface->cross_connect_enabled == 0)
3942 continue;
3943
3944 iface->cross_connect_enabled = 0;
3945 iface->cross_connect_in_use = 0;
3946 wpa_msg(iface->parent, MSG_INFO,
3947 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3948 iface->ifname, iface->cross_connect_uplink);
3949 }
3950 }
3951
3952 return 0;
3953}
3954
3955
3956static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
3957{
3958 struct wpa_supplicant *iface;
3959
3960 if (!uplink->global->cross_connection)
3961 return;
3962
3963 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3964 if (!iface->cross_connect_enabled)
3965 continue;
3966 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3967 0)
3968 continue;
3969 if (iface->ap_iface == NULL)
3970 continue;
3971 if (iface->cross_connect_in_use)
3972 continue;
3973
3974 iface->cross_connect_in_use = 1;
3975 wpa_msg(iface->parent, MSG_INFO,
3976 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3977 iface->ifname, iface->cross_connect_uplink);
3978 }
3979}
3980
3981
3982static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
3983{
3984 struct wpa_supplicant *iface;
3985
3986 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3987 if (!iface->cross_connect_enabled)
3988 continue;
3989 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3990 0)
3991 continue;
3992 if (!iface->cross_connect_in_use)
3993 continue;
3994
3995 wpa_msg(iface->parent, MSG_INFO,
3996 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3997 iface->ifname, iface->cross_connect_uplink);
3998 iface->cross_connect_in_use = 0;
3999 }
4000}
4001
4002
4003void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4004{
4005 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
4006 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
4007 wpa_s->cross_connect_disallowed)
4008 wpas_p2p_disable_cross_connect(wpa_s);
4009 else
4010 wpas_p2p_enable_cross_connect(wpa_s);
3071e181
JM		 4011 if (!wpa_s->ap_iface)
4012 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
72044390
JM		 4013}
4014
4015
4016void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
4017{
4018 wpas_p2p_disable_cross_connect(wpa_s);
3071e181
JM		 4019 if (!wpa_s->ap_iface)
4020 wpas_p2p_set_group_idle_timeout(wpa_s);
72044390
JM		 4021}
4022
4023
4024static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
4025{
4026 struct wpa_supplicant *iface;
4027
4028 if (!wpa_s->global->cross_connection)
4029 return;
4030
4031 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
4032 if (iface == wpa_s)
4033 continue;
4034 if (iface->drv_flags &
4035 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
4036 continue;
4037 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
4038 continue;
4039
4040 wpa_s->cross_connect_enabled = 1;
4041 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
4042 sizeof(wpa_s->cross_connect_uplink));
4043 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
4044 "%s to %s whenever uplink is available",
4045 wpa_s->ifname, wpa_s->cross_connect_uplink);
4046
4047 if (iface->ap_iface || iface->current_ssid == NULL ||
4048 iface->current_ssid->mode != WPAS_MODE_INFRA ||
4049 iface->cross_connect_disallowed ||
4050 iface->wpa_state != WPA_COMPLETED)
4051 break;
4052
4053 wpa_s->cross_connect_in_use = 1;
4054 wpa_msg(wpa_s->parent, MSG_INFO,
4055 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4056 wpa_s->ifname, wpa_s->cross_connect_uplink);
4057 break;
4058 }
4059}
b73bf0a7
JM		 4060
4061
4062int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
4063{
4064 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
4065 !wpa_s->p2p_in_provisioning)
4066 return 0; /* not P2P client operation */
4067
4068 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
4069 "session overlap");
148bb37f
JM		 4070 if (wpa_s != wpa_s->parent)
4071 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
0a14e3ec
SS		 4072
4073 if (wpa_s->global->p2p)
4074 p2p_group_formation_failed(wpa_s->global->p2p);
4075
4076 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4077 wpa_s->parent, NULL);
4078
b73bf0a7
JM		 4079 wpas_group_formation_completed(wpa_s, 0);
4080 return 1;
4081}
b5c9da8d
JM		 4082
4083
4084void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
4085{
4086 struct p2p_channels chan;
4087
4088 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
4089 return;
4090
4091 os_memset(&chan, 0, sizeof(chan));
4092 if (wpas_p2p_setup_channels(wpa_s, &chan)) {
4093 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
4094 "channel list");
4095 return;
4096 }
4097
4098 p2p_update_channel_list(wpa_s->global->p2p, &chan);
4099}
59eba7a2
JM		 4100
4101
4102int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
4103{
4104 struct wpa_global *global = wpa_s->global;
4105 int found = 0;
231bbd03 4106 const u8 *peer;
59eba7a2 4107
9526fd29
JM		 4108 if (global->p2p == NULL)
4109 return -1;
4110
59eba7a2
JM		 4111 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
4112
4113 if (wpa_s->pending_interface_name[0] &&
4114 !is_zero_ether_addr(wpa_s->pending_interface_addr))
4115 found = 1;
4116
231bbd03
SS		 4117 peer = p2p_get_go_neg_peer(global->p2p);
4118 if (peer) {
4119 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
4120 MACSTR, MAC2STR(peer));
4121 p2p_unauthorize(global->p2p, peer);
4122 }
4123
59eba7a2
JM		 4124 wpas_p2p_stop_find(wpa_s);
4125
4126 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4127 if (wpa_s == global->p2p_group_formation &&
a0a9f3b0
JM		 4128 (wpa_s->p2p_in_provisioning ||
4129 wpa_s->parent->pending_interface_type ==
4130 WPA_IF_P2P_CLIENT)) {
59eba7a2
JM		 4131 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
4132 "formation found - cancelling",
4133 wpa_s->ifname);
4134 found = 1;
45fee6f0
SS		 4135 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4136 wpa_s->parent, NULL);
59eba7a2
JM		 4137 wpas_p2p_group_delete(wpa_s);
4138 break;
4139 }
4140 }
4141
4142 if (!found) {
4143 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
4144 return -1;
4145 }
4146
4147 return 0;
4148}
c973f386
JM		 4149
4150
4151void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
4152{
4153 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4154 return;
4155
4156 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
4157 "being available anymore");
4158 wpa_s->removal_reason = P2P_GROUP_REMOVAL_UNAVAILABLE;
4159 wpas_p2p_group_delete(wpa_s);
4160}
7cfc4ac3
AGS		 4161
4162
4163void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
4164 int freq_24, int freq_5, int freq_overall)
4165{
4166 struct p2p_data *p2p = wpa_s->global->p2p;
4167 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4168 return;
4169 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
4170}
9d562b79
SS		 4171
4172
4173int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
4174{
4175 u8 peer[ETH_ALEN];
4176 struct p2p_data *p2p = wpa_s->global->p2p;
4177
4178 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4179 return -1;
4180
4181 if (hwaddr_aton(addr, peer))
4182 return -1;
4183
4184 return p2p_unauthorize(p2p, peer);
4185}
3103f345
JB		 4186
4187
4188/**
4189 * wpas_p2p_disconnect - Disconnect from a P2P Group
4190 * @wpa_s: Pointer to wpa_supplicant data
4191 * Returns: 0 on success, -1 on failure
4192 *
4193 * This can be used to disconnect from a group in which the local end is a P2P
4194 * Client or to end a P2P Group in case the local end is the Group Owner. If a
4195 * virtual network interface was created for this group, that interface will be
4196 * removed. Otherwise, only the configured P2P group network will be removed
4197 * from the interface.
4198 */
4199int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
4200{
4201
4202 if (wpa_s == NULL)
4203 return -1;
4204
4205 wpa_s->removal_reason = P2P_GROUP_REMOVAL_REQUESTED;
4206 wpas_p2p_group_delete(wpa_s);
4207
4208 return 0;
4209}
303f60d3
JM		 4210
4211
4212int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
4213{
4214 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4215 return 0;
4216
4217 return p2p_in_progress(wpa_s->global->p2p);
4218}
502618f7
JM		 4219
4220
4221void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
4222 struct wpa_ssid *ssid)
4223
4224{
4225 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
4226 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4227 wpa_s->parent, NULL) > 0) {
4228 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
4229 "P2P group network getting removed");
4230 wpas_p2p_group_formation_timeout(wpa_s->parent, NULL);
4231 }
4232}
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