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Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001/*
2 * wpa_supplicant - P2P
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07007 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eloop.h"
13#include "common/ieee802_11_common.h"
14#include "common/ieee802_11_defs.h"
15#include "common/wpa_ctrl.h"
16#include "wps/wps_i.h"
17#include "p2p/p2p.h"
18#include "ap/hostapd.h"
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080019#include "ap/ap_config.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070020#include "ap/p2p_hostapd.h"
Jouni Malinen75ecf522011-06-27 15:19:46 -070021#include "eapol_supp/eapol_supp_sm.h"
22#include "rsn_supp/wpa.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070023#include "wpa_supplicant_i.h"
24#include "driver_i.h"
25#include "ap.h"
26#include "config_ssid.h"
27#include "config.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070028#include "notify.h"
29#include "scan.h"
30#include "bss.h"
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080031#include "offchannel.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070032#include "wps_supplicant.h"
33#include "p2p_supplicant.h"
34
35
36/*
37 * How many times to try to scan to find the GO before giving up on join
38 * request.
39 */
40#define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
41
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080042#ifndef P2P_MAX_CLIENT_IDLE
43/*
44 * How many seconds to try to reconnect to the GO when connection in P2P client
45 * role has been lost.
46 */
47#define P2P_MAX_CLIENT_IDLE 10
48#endif /* P2P_MAX_CLIENT_IDLE */
49
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070050
51static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
52static struct wpa_supplicant *
53wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
54 int go);
55static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
56static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
57static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
58 const u8 *dev_addr, enum p2p_wps_method wps_method);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -080059static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx,
60 void *timeout_ctx);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070061static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
62static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
63static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
64static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
65
66
67static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
68 struct wpa_scan_results *scan_res)
69{
70 size_t i;
71
72 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
73 return;
74
75 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
76 (int) scan_res->num);
77
78 for (i = 0; i < scan_res->num; i++) {
79 struct wpa_scan_res *bss = scan_res->res[i];
80 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
81 bss->freq, bss->level,
82 (const u8 *) (bss + 1),
83 bss->ie_len) > 0)
84 break;
85 }
86
87 p2p_scan_res_handled(wpa_s->global->p2p);
88}
89
90
91static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
92 unsigned int num_req_dev_types,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -080093 const u8 *req_dev_types, const u8 *dev_id)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070094{
95 struct wpa_supplicant *wpa_s = ctx;
96 struct wpa_driver_scan_params params;
97 int ret;
98 struct wpabuf *wps_ie, *ies;
99 int social_channels[] = { 2412, 2437, 2462, 0, 0 };
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800100 size_t ielen;
101 int was_in_p2p_scan;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700102
103 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
104 return -1;
105
106 os_memset(&params, 0, sizeof(params));
107
108 /* P2P Wildcard SSID */
109 params.num_ssids = 1;
110 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
111 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
112
113 wpa_s->wps->dev.p2p = 1;
114 wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
115 WPS_REQ_ENROLLEE,
116 num_req_dev_types, req_dev_types);
117 if (wps_ie == NULL)
118 return -1;
119
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800120 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
121 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700122 if (ies == NULL) {
123 wpabuf_free(wps_ie);
124 return -1;
125 }
126 wpabuf_put_buf(ies, wps_ie);
127 wpabuf_free(wps_ie);
128
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800129 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700130
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800131 params.p2p_probe = 1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700132 params.extra_ies = wpabuf_head(ies);
133 params.extra_ies_len = wpabuf_len(ies);
134
135 switch (type) {
136 case P2P_SCAN_SOCIAL:
137 params.freqs = social_channels;
138 break;
139 case P2P_SCAN_FULL:
140 break;
141 case P2P_SCAN_SPECIFIC:
142 social_channels[0] = freq;
143 social_channels[1] = 0;
144 params.freqs = social_channels;
145 break;
146 case P2P_SCAN_SOCIAL_PLUS_ONE:
147 social_channels[3] = freq;
148 params.freqs = social_channels;
149 break;
150 }
151
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800152 was_in_p2p_scan = wpa_s->scan_res_handler == wpas_p2p_scan_res_handler;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700153 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800154 ret = wpa_drv_scan(wpa_s, &params);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700155
156 wpabuf_free(ies);
157
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800158 if (ret) {
159 wpa_s->scan_res_handler = NULL;
160 if (wpa_s->scanning || was_in_p2p_scan) {
161 wpa_s->p2p_cb_on_scan_complete = 1;
162 ret = 1;
163 }
164 }
165
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700166 return ret;
167}
168
169
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700170static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
171{
172 switch (p2p_group_interface) {
173 case P2P_GROUP_INTERFACE_PENDING:
174 return WPA_IF_P2P_GROUP;
175 case P2P_GROUP_INTERFACE_GO:
176 return WPA_IF_P2P_GO;
177 case P2P_GROUP_INTERFACE_CLIENT:
178 return WPA_IF_P2P_CLIENT;
179 }
180
181 return WPA_IF_P2P_GROUP;
182}
183
184
185static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
186 const u8 *ssid,
187 size_t ssid_len, int *go)
188{
189 struct wpa_ssid *s;
190
191 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
192 for (s = wpa_s->conf->ssid; s; s = s->next) {
193 if (s->disabled != 0 || !s->p2p_group ||
194 s->ssid_len != ssid_len ||
195 os_memcmp(ssid, s->ssid, ssid_len) != 0)
196 continue;
197 if (s->mode == WPAS_MODE_P2P_GO &&
198 s != wpa_s->current_ssid)
199 continue;
200 if (go)
201 *go = s->mode == WPAS_MODE_P2P_GO;
202 return wpa_s;
203 }
204 }
205
206 return NULL;
207}
208
209
210static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s)
211{
212 struct wpa_ssid *ssid;
213 char *gtype;
214 const char *reason;
215
216 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
217
218 ssid = wpa_s->current_ssid;
219 if (ssid == NULL) {
220 /*
221 * The current SSID was not known, but there may still be a
222 * pending P2P group interface waiting for provisioning.
223 */
224 ssid = wpa_s->conf->ssid;
225 while (ssid) {
226 if (ssid->p2p_group &&
227 (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
228 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
229 break;
230 ssid = ssid->next;
231 }
232 }
233 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
234 gtype = "GO";
235 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
236 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
237 wpa_s->reassociate = 0;
238 wpa_s->disconnected = 1;
239 wpa_supplicant_deauthenticate(wpa_s,
240 WLAN_REASON_DEAUTH_LEAVING);
241 gtype = "client";
242 } else
243 gtype = "GO";
244 if (wpa_s->cross_connect_in_use) {
245 wpa_s->cross_connect_in_use = 0;
246 wpa_msg(wpa_s->parent, MSG_INFO,
247 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
248 wpa_s->ifname, wpa_s->cross_connect_uplink);
249 }
250 switch (wpa_s->removal_reason) {
251 case P2P_GROUP_REMOVAL_REQUESTED:
252 reason = " reason=REQUESTED";
253 break;
254 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
255 reason = " reason=IDLE";
256 break;
257 case P2P_GROUP_REMOVAL_UNAVAILABLE:
258 reason = " reason=UNAVAILABLE";
259 break;
Dmitry Shmidt687922c2012-03-26 14:02:32 -0700260#ifdef ANDROID_P2P
261 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
262 reason = " reason=FREQ_CONFLICT";
263 break;
264#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700265 default:
266 reason = "";
267 break;
268 }
269 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_REMOVED "%s %s%s",
270 wpa_s->ifname, gtype, reason);
271
272 if (ssid)
273 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
274
275 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
276 struct wpa_global *global;
277 char *ifname;
278 enum wpa_driver_if_type type;
279 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
280 wpa_s->ifname);
281 global = wpa_s->global;
282 ifname = os_strdup(wpa_s->ifname);
283 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
Dmitry Shmidte15c7b52011-08-03 15:04:35 -0700284 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700285 wpa_s = global->ifaces;
286 if (wpa_s && ifname)
287 wpa_drv_if_remove(wpa_s, type, ifname);
288 os_free(ifname);
289 return;
290 }
291
292 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
293 if (ssid && (ssid->p2p_group ||
294 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
295 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
296 int id = ssid->id;
Jouni Malinen75ecf522011-06-27 15:19:46 -0700297 if (ssid == wpa_s->current_ssid) {
298 wpa_sm_set_config(wpa_s->wpa, NULL);
299 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700300 wpa_s->current_ssid = NULL;
Jouni Malinen75ecf522011-06-27 15:19:46 -0700301 }
302 /*
303 * Networks objects created during any P2P activities are not
304 * exposed out as they might/will confuse certain non-P2P aware
305 * applications since these network objects won't behave like
306 * regular ones.
307 *
308 * Likewise, we don't send out network removed signals for such
309 * network objects.
310 */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700311 wpa_config_remove_network(wpa_s->conf, id);
312 wpa_supplicant_clear_status(wpa_s);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800313 wpa_supplicant_cancel_sched_scan(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700314 } else {
315 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
316 "found");
317 }
318 wpa_supplicant_ap_deinit(wpa_s);
319}
320
321
322static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
323 u8 *go_dev_addr,
324 const u8 *ssid, size_t ssid_len)
325{
326 struct wpa_bss *bss;
327 const u8 *bssid;
328 struct wpabuf *p2p;
329 u8 group_capab;
330 const u8 *addr;
331
332 if (wpa_s->go_params)
333 bssid = wpa_s->go_params->peer_interface_addr;
334 else
335 bssid = wpa_s->bssid;
336
337 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
338 if (bss == NULL) {
339 u8 iface_addr[ETH_ALEN];
340 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
341 iface_addr) == 0)
342 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
343 }
344 if (bss == NULL) {
345 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
346 "group is persistent - BSS " MACSTR " not found",
347 MAC2STR(bssid));
348 return 0;
349 }
350
351 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
352 if (p2p == NULL) {
353 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
354 "group is persistent - BSS " MACSTR
355 " did not include P2P IE", MAC2STR(bssid));
356 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
357 (u8 *) (bss + 1), bss->ie_len);
358 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
359 ((u8 *) bss + 1) + bss->ie_len,
360 bss->beacon_ie_len);
361 return 0;
362 }
363
364 group_capab = p2p_get_group_capab(p2p);
365 addr = p2p_get_go_dev_addr(p2p);
366 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
367 "group_capab=0x%x", group_capab);
368 if (addr) {
369 os_memcpy(go_dev_addr, addr, ETH_ALEN);
370 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
371 MAC2STR(addr));
372 } else
373 os_memset(go_dev_addr, 0, ETH_ALEN);
374 wpabuf_free(p2p);
375
376 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
377 "go_dev_addr=" MACSTR,
378 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
379
380 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
381}
382
383
Jouni Malinen75ecf522011-06-27 15:19:46 -0700384static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
385 struct wpa_ssid *ssid,
386 const u8 *go_dev_addr)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700387{
388 struct wpa_ssid *s;
389 int changed = 0;
390
391 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
392 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
393 for (s = wpa_s->conf->ssid; s; s = s->next) {
394 if (s->disabled == 2 &&
395 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
396 s->ssid_len == ssid->ssid_len &&
397 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
398 break;
399 }
400
401 if (s) {
402 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
403 "entry");
404 if (ssid->passphrase && !s->passphrase)
405 changed = 1;
406 else if (ssid->passphrase && s->passphrase &&
407 os_strcmp(ssid->passphrase, s->passphrase) != 0)
408 changed = 1;
409 } else {
410 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
411 "entry");
412 changed = 1;
413 s = wpa_config_add_network(wpa_s->conf);
414 if (s == NULL)
Jouni Malinen75ecf522011-06-27 15:19:46 -0700415 return -1;
416
417 /*
418 * Instead of network_added we emit persistent_group_added
419 * notification. Also to keep the defense checks in
420 * persistent_group obj registration method, we set the
421 * relevant flags in s to designate it as a persistent group.
422 */
423 s->p2p_group = 1;
424 s->p2p_persistent_group = 1;
425 wpas_notify_persistent_group_added(wpa_s, s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700426 wpa_config_set_network_defaults(s);
427 }
428
429 s->p2p_group = 1;
430 s->p2p_persistent_group = 1;
431 s->disabled = 2;
432 s->bssid_set = 1;
433 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
434 s->mode = ssid->mode;
435 s->auth_alg = WPA_AUTH_ALG_OPEN;
436 s->key_mgmt = WPA_KEY_MGMT_PSK;
437 s->proto = WPA_PROTO_RSN;
438 s->pairwise_cipher = WPA_CIPHER_CCMP;
439 s->export_keys = 1;
440 if (ssid->passphrase) {
441 os_free(s->passphrase);
442 s->passphrase = os_strdup(ssid->passphrase);
443 }
444 if (ssid->psk_set) {
445 s->psk_set = 1;
446 os_memcpy(s->psk, ssid->psk, 32);
447 }
448 if (s->passphrase && !s->psk_set)
449 wpa_config_update_psk(s);
450 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
451 os_free(s->ssid);
452 s->ssid = os_malloc(ssid->ssid_len);
453 }
454 if (s->ssid) {
455 s->ssid_len = ssid->ssid_len;
456 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
457 }
458
459#ifndef CONFIG_NO_CONFIG_WRITE
460 if (changed && wpa_s->conf->update_config &&
461 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
462 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
463 }
464#endif /* CONFIG_NO_CONFIG_WRITE */
Jouni Malinen75ecf522011-06-27 15:19:46 -0700465
466 return s->id;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700467}
468
469
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800470static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
471 const u8 *addr)
472{
473 struct wpa_ssid *ssid, *s;
474 u8 *n;
475 size_t i;
476
477 ssid = wpa_s->current_ssid;
478 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
479 !ssid->p2p_persistent_group)
480 return;
481
482 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
483 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
484 continue;
485
486 if (s->ssid_len == ssid->ssid_len &&
487 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
488 break;
489 }
490
491 if (s == NULL)
492 return;
493
494 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
495 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
496 ETH_ALEN) == 0)
497 return; /* already in list */
498 }
499
500 n = os_realloc(s->p2p_client_list,
501 (s->num_p2p_clients + 1) * ETH_ALEN);
502 if (n == NULL)
503 return;
504 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
505 s->p2p_client_list = n;
506 s->num_p2p_clients++;
507
508#ifndef CONFIG_NO_CONFIG_WRITE
509 if (wpa_s->parent->conf->update_config &&
510 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
511 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
512#endif /* CONFIG_NO_CONFIG_WRITE */
513}
514
515
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700516static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
517 int success)
518{
519 struct wpa_ssid *ssid;
520 const char *ssid_txt;
521 int client;
522 int persistent;
523 u8 go_dev_addr[ETH_ALEN];
Jouni Malinen75ecf522011-06-27 15:19:46 -0700524 int network_id = -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700525
526 /*
527 * This callback is likely called for the main interface. Update wpa_s
528 * to use the group interface if a new interface was created for the
529 * group.
530 */
531 if (wpa_s->global->p2p_group_formation)
532 wpa_s = wpa_s->global->p2p_group_formation;
533 wpa_s->global->p2p_group_formation = NULL;
534 wpa_s->p2p_in_provisioning = 0;
535
536 if (!success) {
537 wpa_msg(wpa_s->parent, MSG_INFO,
538 P2P_EVENT_GROUP_FORMATION_FAILURE);
539 wpas_p2p_group_delete(wpa_s);
540 return;
541 }
542
543 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
544
545 ssid = wpa_s->current_ssid;
546 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
547 ssid->mode = WPAS_MODE_P2P_GO;
548 p2p_group_notif_formation_done(wpa_s->p2p_group);
549 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
550 }
551
552 persistent = 0;
553 if (ssid) {
554 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
555 client = ssid->mode == WPAS_MODE_INFRA;
556 if (ssid->mode == WPAS_MODE_P2P_GO) {
557 persistent = ssid->p2p_persistent_group;
Dmitry Shmidt497c1d52011-07-21 15:19:46 -0700558 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
559 ETH_ALEN);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700560 } else
561 persistent = wpas_p2p_persistent_group(wpa_s,
562 go_dev_addr,
563 ssid->ssid,
564 ssid->ssid_len);
565 } else {
566 ssid_txt = "";
567 client = wpa_s->p2p_group_interface ==
568 P2P_GROUP_INTERFACE_CLIENT;
569 os_memset(go_dev_addr, 0, ETH_ALEN);
570 }
571
572 wpa_s->show_group_started = 0;
573 if (client) {
574 /*
575 * Indicate event only after successfully completed 4-way
576 * handshake, i.e., when the interface is ready for data
577 * packets.
578 */
579 wpa_s->show_group_started = 1;
580 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
581 char psk[65];
582 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
583 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
584 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
585 "%s",
586 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
587 MAC2STR(go_dev_addr),
588 persistent ? " [PERSISTENT]" : "");
589 wpas_p2p_cross_connect_setup(wpa_s);
590 wpas_p2p_set_group_idle_timeout(wpa_s);
591 } else {
592 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
593 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
594 "go_dev_addr=" MACSTR "%s",
595 wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
596 ssid && ssid->passphrase ? ssid->passphrase : "",
597 MAC2STR(go_dev_addr),
598 persistent ? " [PERSISTENT]" : "");
599 wpas_p2p_cross_connect_setup(wpa_s);
600 wpas_p2p_set_group_idle_timeout(wpa_s);
601 }
602
603 if (persistent)
Jouni Malinen75ecf522011-06-27 15:19:46 -0700604 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
605 ssid, go_dev_addr);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800606 if (network_id < 0 && ssid)
Jouni Malinen75ecf522011-06-27 15:19:46 -0700607 network_id = ssid->id;
608 if (!client)
609 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700610}
611
612
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800613static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
614 unsigned int freq,
615 const u8 *dst, const u8 *src,
616 const u8 *bssid,
617 const u8 *data, size_t data_len,
618 enum offchannel_send_action_result
619 result)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700620{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800621 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700622
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700623 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
624 return;
625 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
626 return;
627
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800628 switch (result) {
629 case OFFCHANNEL_SEND_ACTION_SUCCESS:
630 res = P2P_SEND_ACTION_SUCCESS;
631 break;
632 case OFFCHANNEL_SEND_ACTION_NO_ACK:
633 res = P2P_SEND_ACTION_NO_ACK;
634 break;
635 case OFFCHANNEL_SEND_ACTION_FAILED:
636 res = P2P_SEND_ACTION_FAILED;
637 break;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700638 }
639
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800640 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700641
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800642 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
643 wpa_s->pending_pd_before_join &&
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800644 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
645 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700646 wpa_s->pending_pd_before_join = 0;
647 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800648 "join-existing-group operation (no ACK for PD "
649 "Req)");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700650 wpas_p2p_join_start(wpa_s);
651 }
652}
653
654
655static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
656 const u8 *src, const u8 *bssid, const u8 *buf,
657 size_t len, unsigned int wait_time)
658{
659 struct wpa_supplicant *wpa_s = ctx;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800660 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
661 wait_time,
662 wpas_p2p_send_action_tx_status, 1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700663}
664
665
666static void wpas_send_action_done(void *ctx)
667{
668 struct wpa_supplicant *wpa_s = ctx;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800669 offchannel_send_action_done(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700670}
671
672
673static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
674 struct p2p_go_neg_results *params)
675{
676 if (wpa_s->go_params == NULL) {
677 wpa_s->go_params = os_malloc(sizeof(*params));
678 if (wpa_s->go_params == NULL)
679 return -1;
680 }
681 os_memcpy(wpa_s->go_params, params, sizeof(*params));
682 return 0;
683}
684
685
686static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
687 struct p2p_go_neg_results *res)
688{
689 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
690 MAC2STR(res->peer_interface_addr));
691 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
692 res->ssid, res->ssid_len);
693 wpa_supplicant_ap_deinit(wpa_s);
694 wpas_copy_go_neg_results(wpa_s, res);
695 if (res->wps_method == WPS_PBC)
696 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
697 else {
698 u16 dev_pw_id = DEV_PW_DEFAULT;
699 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
700 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
701 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
702 wpa_s->p2p_pin, 1, dev_pw_id);
703 }
704}
705
706
707static void p2p_go_configured(void *ctx, void *data)
708{
709 struct wpa_supplicant *wpa_s = ctx;
710 struct p2p_go_neg_results *params = data;
711 struct wpa_ssid *ssid;
Jouni Malinen75ecf522011-06-27 15:19:46 -0700712 int network_id = -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700713
714 ssid = wpa_s->current_ssid;
715 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
716 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
717 if (wpa_s->global->p2p_group_formation == wpa_s)
718 wpa_s->global->p2p_group_formation = NULL;
719 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
720 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
721 "go_dev_addr=" MACSTR "%s",
722 wpa_s->ifname,
723 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
724 ssid->frequency,
725 params->passphrase ? params->passphrase : "",
Dmitry Shmidt497c1d52011-07-21 15:19:46 -0700726 MAC2STR(wpa_s->global->p2p_dev_addr),
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700727 params->persistent_group ? " [PERSISTENT]" : "");
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800728
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700729 if (params->persistent_group)
Jouni Malinen75ecf522011-06-27 15:19:46 -0700730 network_id = wpas_p2p_store_persistent_group(
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700731 wpa_s->parent, ssid,
Dmitry Shmidt497c1d52011-07-21 15:19:46 -0700732 wpa_s->global->p2p_dev_addr);
Jouni Malinen75ecf522011-06-27 15:19:46 -0700733 if (network_id < 0)
734 network_id = ssid->id;
735 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700736 wpas_p2p_cross_connect_setup(wpa_s);
737 wpas_p2p_set_group_idle_timeout(wpa_s);
738 return;
739 }
740
741 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
742 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
743 params->peer_interface_addr)) {
744 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
745 "filtering");
746 return;
747 }
748 if (params->wps_method == WPS_PBC)
749 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800750 params->peer_device_addr);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700751 else if (wpa_s->p2p_pin[0])
752 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
753 wpa_s->p2p_pin, NULL, 0);
754 os_free(wpa_s->go_params);
755 wpa_s->go_params = NULL;
756}
757
758
759static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
760 struct p2p_go_neg_results *params,
761 int group_formation)
762{
763 struct wpa_ssid *ssid;
764
765 if (wpas_copy_go_neg_results(wpa_s, params) < 0)
766 return;
767
768 ssid = wpa_config_add_network(wpa_s->conf);
769 if (ssid == NULL)
770 return;
771
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800772 wpa_s->show_group_started = 0;
773
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700774 wpa_config_set_network_defaults(ssid);
775 ssid->temporary = 1;
776 ssid->p2p_group = 1;
777 ssid->p2p_persistent_group = params->persistent_group;
778 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
779 WPAS_MODE_P2P_GO;
780 ssid->frequency = params->freq;
781 ssid->ssid = os_zalloc(params->ssid_len + 1);
782 if (ssid->ssid) {
783 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
784 ssid->ssid_len = params->ssid_len;
785 }
786 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
787 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
788 ssid->proto = WPA_PROTO_RSN;
789 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
790 ssid->passphrase = os_strdup(params->passphrase);
791
792 wpa_s->ap_configured_cb = p2p_go_configured;
793 wpa_s->ap_configured_cb_ctx = wpa_s;
794 wpa_s->ap_configured_cb_data = wpa_s->go_params;
Jouni Malinen75ecf522011-06-27 15:19:46 -0700795 wpa_s->connect_without_scan = ssid;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700796 wpa_s->reassociate = 1;
797 wpa_s->disconnected = 0;
798 wpa_supplicant_req_scan(wpa_s, 0, 0);
799}
800
801
802static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
803 const struct wpa_supplicant *src)
804{
805 struct wpa_config *d;
806 const struct wpa_config *s;
807
808 d = dst->conf;
809 s = src->conf;
810
811#define C(n) if (s->n) d->n = os_strdup(s->n)
812 C(device_name);
813 C(manufacturer);
814 C(model_name);
815 C(model_number);
816 C(serial_number);
817 C(config_methods);
818#undef C
819
820 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
821 os_memcpy(d->sec_device_type, s->sec_device_type,
822 sizeof(d->sec_device_type));
823 d->num_sec_device_types = s->num_sec_device_types;
824
825 d->p2p_group_idle = s->p2p_group_idle;
826 d->p2p_intra_bss = s->p2p_intra_bss;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800827 d->persistent_reconnect = s->persistent_reconnect;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700828}
829
830
831static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
832 enum wpa_driver_if_type type)
833{
834 char ifname[120], force_ifname[120];
835
836 if (wpa_s->pending_interface_name[0]) {
837 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
838 "- skip creation of a new one");
839 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
840 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
841 "unknown?! ifname='%s'",
842 wpa_s->pending_interface_name);
843 return -1;
844 }
845 return 0;
846 }
847
848 os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
849 wpa_s->p2p_group_idx);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800850 if (os_strlen(ifname) >= IFNAMSIZ &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700851 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
852 /* Try to avoid going over the IFNAMSIZ length limit */
853 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
854 wpa_s->p2p_group_idx);
855 }
856 force_ifname[0] = '\0';
857
858 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
859 ifname);
860 wpa_s->p2p_group_idx++;
861
862 wpa_s->pending_interface_type = type;
863 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
864 wpa_s->pending_interface_addr, NULL) < 0) {
865 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
866 "interface");
867 return -1;
868 }
869
870 if (force_ifname[0]) {
871 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
872 force_ifname);
873 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
874 sizeof(wpa_s->pending_interface_name));
875 } else
876 os_strlcpy(wpa_s->pending_interface_name, ifname,
877 sizeof(wpa_s->pending_interface_name));
878 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
879 MACSTR, wpa_s->pending_interface_name,
880 MAC2STR(wpa_s->pending_interface_addr));
881
882 return 0;
883}
884
885
886static void wpas_p2p_remove_pending_group_interface(
887 struct wpa_supplicant *wpa_s)
888{
889 if (!wpa_s->pending_interface_name[0] ||
890 is_zero_ether_addr(wpa_s->pending_interface_addr))
891 return; /* No pending virtual interface */
892
893 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
894 wpa_s->pending_interface_name);
895 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
896 wpa_s->pending_interface_name);
897 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
898 wpa_s->pending_interface_name[0] = '\0';
899}
900
901
902static struct wpa_supplicant *
903wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
904{
905 struct wpa_interface iface;
906 struct wpa_supplicant *group_wpa_s;
907
908 if (!wpa_s->pending_interface_name[0]) {
909 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
910 if (!wpas_p2p_create_iface(wpa_s))
911 return NULL;
912 /*
913 * Something has forced us to remove the pending interface; try
914 * to create a new one and hope for the best that we will get
915 * the same local address.
916 */
917 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
918 WPA_IF_P2P_CLIENT) < 0)
919 return NULL;
920 }
921
922 os_memset(&iface, 0, sizeof(iface));
923 iface.ifname = wpa_s->pending_interface_name;
924 iface.driver = wpa_s->driver->name;
925 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
926 iface.driver_param = wpa_s->conf->driver_param;
927 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
928 if (group_wpa_s == NULL) {
929 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
930 "wpa_supplicant interface");
931 return NULL;
932 }
933 wpa_s->pending_interface_name[0] = '\0';
934 group_wpa_s->parent = wpa_s;
935 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
936 P2P_GROUP_INTERFACE_CLIENT;
937 wpa_s->global->p2p_group_formation = group_wpa_s;
938
939 wpas_p2p_clone_config(group_wpa_s, wpa_s);
940
941 return group_wpa_s;
942}
943
944
945static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
946 void *timeout_ctx)
947{
948 struct wpa_supplicant *wpa_s = eloop_ctx;
949 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
950 if (wpa_s->global->p2p)
951 p2p_group_formation_failed(wpa_s->global->p2p);
952 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
953 wpa_drv_p2p_group_formation_failed(wpa_s);
954 wpas_group_formation_completed(wpa_s, 0);
955}
956
957
958void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
959{
960 struct wpa_supplicant *wpa_s = ctx;
961
962 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
963 wpa_drv_cancel_remain_on_channel(wpa_s);
964 wpa_s->off_channel_freq = 0;
965 wpa_s->roc_waiting_drv_freq = 0;
966 }
967
968 if (res->status) {
969 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
970 res->status);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800971 wpas_notify_p2p_go_neg_completed(wpa_s, res);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700972 wpas_p2p_remove_pending_group_interface(wpa_s);
973 return;
974 }
975
976 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800977 wpas_notify_p2p_go_neg_completed(wpa_s, res);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700978
979 if (wpa_s->create_p2p_iface) {
980 struct wpa_supplicant *group_wpa_s =
981 wpas_p2p_init_group_interface(wpa_s, res->role_go);
982 if (group_wpa_s == NULL) {
983 wpas_p2p_remove_pending_group_interface(wpa_s);
984 return;
985 }
986 if (group_wpa_s != wpa_s) {
987 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
988 sizeof(group_wpa_s->p2p_pin));
989 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
990 }
991 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
992 wpa_s->pending_interface_name[0] = '\0';
993 group_wpa_s->p2p_in_provisioning = 1;
994
995 if (res->role_go)
996 wpas_start_wps_go(group_wpa_s, res, 1);
997 else
998 wpas_start_wps_enrollee(group_wpa_s, res);
999 } else {
1000 wpa_s->p2p_in_provisioning = 1;
1001 wpa_s->global->p2p_group_formation = wpa_s;
1002
1003 if (res->role_go)
1004 wpas_start_wps_go(wpa_s, res, 1);
1005 else
1006 wpas_start_wps_enrollee(ctx, res);
1007 }
1008
1009 wpa_s->p2p_long_listen = 0;
1010 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1011
1012 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1013 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1014 (res->peer_config_timeout % 100) * 10000,
1015 wpas_p2p_group_formation_timeout, wpa_s, NULL);
1016}
1017
1018
1019void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1020{
1021 struct wpa_supplicant *wpa_s = ctx;
1022 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1023 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1024
1025 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1026}
1027
1028
1029void wpas_dev_found(void *ctx, const u8 *addr,
1030 const struct p2p_peer_info *info,
1031 int new_device)
1032{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001033#ifndef CONFIG_NO_STDOUT_DEBUG
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001034 struct wpa_supplicant *wpa_s = ctx;
1035 char devtype[WPS_DEV_TYPE_BUFSIZE];
1036
1037 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1038 " p2p_dev_addr=" MACSTR
1039 " pri_dev_type=%s name='%s' config_methods=0x%x "
1040 "dev_capab=0x%x group_capab=0x%x",
1041 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1042 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1043 sizeof(devtype)),
1044 info->device_name, info->config_methods,
1045 info->dev_capab, info->group_capab);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001046#endif /* CONFIG_NO_STDOUT_DEBUG */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001047
1048 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1049}
1050
1051
1052static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1053{
1054 struct wpa_supplicant *wpa_s = ctx;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001055
Dmitry Shmidt497c1d52011-07-21 15:19:46 -07001056 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1057 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001058
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001059 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1060}
1061
1062
1063static int wpas_start_listen(void *ctx, unsigned int freq,
1064 unsigned int duration,
1065 const struct wpabuf *probe_resp_ie)
1066{
1067 struct wpa_supplicant *wpa_s = ctx;
1068
1069 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1070
1071 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1072 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1073 "report received Probe Request frames");
1074 return -1;
1075 }
1076
1077 wpa_s->pending_listen_freq = freq;
1078 wpa_s->pending_listen_duration = duration;
1079
1080 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1081 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1082 "to remain on channel (%u MHz) for Listen "
1083 "state", freq);
1084 wpa_s->pending_listen_freq = 0;
1085 return -1;
1086 }
1087 wpa_s->off_channel_freq = 0;
1088 wpa_s->roc_waiting_drv_freq = freq;
1089
1090 return 0;
1091}
1092
1093
1094static void wpas_stop_listen(void *ctx)
1095{
1096 struct wpa_supplicant *wpa_s = ctx;
1097 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1098 wpa_drv_cancel_remain_on_channel(wpa_s);
1099 wpa_s->off_channel_freq = 0;
1100 wpa_s->roc_waiting_drv_freq = 0;
1101 }
1102 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1103 wpa_drv_probe_req_report(wpa_s, 0);
1104}
1105
1106
1107static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1108{
1109 struct wpa_supplicant *wpa_s = ctx;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001110 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001111}
1112
1113
1114static struct p2p_srv_bonjour *
1115wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1116 const struct wpabuf *query)
1117{
1118 struct p2p_srv_bonjour *bsrv;
1119 size_t len;
1120
1121 len = wpabuf_len(query);
1122 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1123 struct p2p_srv_bonjour, list) {
1124 if (len == wpabuf_len(bsrv->query) &&
1125 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1126 len) == 0)
1127 return bsrv;
1128 }
1129 return NULL;
1130}
1131
1132
1133static struct p2p_srv_upnp *
1134wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1135 const char *service)
1136{
1137 struct p2p_srv_upnp *usrv;
1138
1139 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1140 struct p2p_srv_upnp, list) {
1141 if (version == usrv->version &&
1142 os_strcmp(service, usrv->service) == 0)
1143 return usrv;
1144 }
1145 return NULL;
1146}
1147
1148
1149static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1150 u8 srv_trans_id)
1151{
1152 u8 *len_pos;
1153
1154 if (wpabuf_tailroom(resp) < 5)
1155 return;
1156
1157 /* Length (to be filled) */
1158 len_pos = wpabuf_put(resp, 2);
1159 wpabuf_put_u8(resp, srv_proto);
1160 wpabuf_put_u8(resp, srv_trans_id);
1161 /* Status Code */
1162 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1163 /* Response Data: empty */
1164 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1165}
1166
1167
1168static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1169 struct wpabuf *resp, u8 srv_trans_id)
1170{
1171 struct p2p_srv_bonjour *bsrv;
1172 u8 *len_pos;
1173
1174 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1175
1176 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1177 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1178 return;
1179 }
1180
1181 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1182 struct p2p_srv_bonjour, list) {
1183 if (wpabuf_tailroom(resp) <
1184 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1185 return;
1186 /* Length (to be filled) */
1187 len_pos = wpabuf_put(resp, 2);
1188 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1189 wpabuf_put_u8(resp, srv_trans_id);
1190 /* Status Code */
1191 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1192 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1193 wpabuf_head(bsrv->resp),
1194 wpabuf_len(bsrv->resp));
1195 /* Response Data */
1196 wpabuf_put_buf(resp, bsrv->query); /* Key */
1197 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1198 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1199 2);
1200 }
1201}
1202
1203
1204static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1205 struct wpabuf *resp, u8 srv_trans_id,
1206 const u8 *query, size_t query_len)
1207{
1208 struct p2p_srv_bonjour *bsrv;
1209 struct wpabuf buf;
1210 u8 *len_pos;
1211
1212 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1213 query, query_len);
1214 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1215 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1216 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1217 srv_trans_id);
1218 return;
1219 }
1220
1221 if (query_len == 0) {
1222 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1223 return;
1224 }
1225
1226 if (wpabuf_tailroom(resp) < 5)
1227 return;
1228 /* Length (to be filled) */
1229 len_pos = wpabuf_put(resp, 2);
1230 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1231 wpabuf_put_u8(resp, srv_trans_id);
1232
1233 wpabuf_set(&buf, query, query_len);
1234 bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1235 if (bsrv == NULL) {
1236 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1237 "available");
1238
1239 /* Status Code */
1240 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1241 /* Response Data: empty */
1242 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1243 2);
1244 return;
1245 }
1246
1247 /* Status Code */
1248 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1249 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1250 wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1251
1252 if (wpabuf_tailroom(resp) >=
1253 wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1254 /* Response Data */
1255 wpabuf_put_buf(resp, bsrv->query); /* Key */
1256 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1257 }
1258 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1259}
1260
1261
1262static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1263 struct wpabuf *resp, u8 srv_trans_id)
1264{
1265 struct p2p_srv_upnp *usrv;
1266 u8 *len_pos;
1267
1268 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1269
1270 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1271 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1272 return;
1273 }
1274
1275 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1276 struct p2p_srv_upnp, list) {
1277 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1278 return;
1279
1280 /* Length (to be filled) */
1281 len_pos = wpabuf_put(resp, 2);
1282 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1283 wpabuf_put_u8(resp, srv_trans_id);
1284
1285 /* Status Code */
1286 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1287 /* Response Data */
1288 wpabuf_put_u8(resp, usrv->version);
1289 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1290 usrv->service);
1291 wpabuf_put_str(resp, usrv->service);
1292 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1293 2);
1294 }
1295}
1296
1297
1298static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1299 struct wpabuf *resp, u8 srv_trans_id,
1300 const u8 *query, size_t query_len)
1301{
1302 struct p2p_srv_upnp *usrv;
1303 u8 *len_pos;
1304 u8 version;
1305 char *str;
1306 int count = 0;
1307
1308 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1309 query, query_len);
1310
1311 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1312 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1313 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1314 srv_trans_id);
1315 return;
1316 }
1317
1318 if (query_len == 0) {
1319 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1320 return;
1321 }
1322
1323 if (wpabuf_tailroom(resp) < 5)
1324 return;
1325
1326 /* Length (to be filled) */
1327 len_pos = wpabuf_put(resp, 2);
1328 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1329 wpabuf_put_u8(resp, srv_trans_id);
1330
1331 version = query[0];
1332 str = os_malloc(query_len);
1333 if (str == NULL)
1334 return;
1335 os_memcpy(str, query + 1, query_len - 1);
1336 str[query_len - 1] = '\0';
1337
1338 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1339 struct p2p_srv_upnp, list) {
1340 if (version != usrv->version)
1341 continue;
1342
1343 if (os_strcmp(str, "ssdp:all") != 0 &&
1344 os_strstr(usrv->service, str) == NULL)
1345 continue;
1346
1347 if (wpabuf_tailroom(resp) < 2)
1348 break;
1349 if (count == 0) {
1350 /* Status Code */
1351 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1352 /* Response Data */
1353 wpabuf_put_u8(resp, version);
1354 } else
1355 wpabuf_put_u8(resp, ',');
1356
1357 count++;
1358
1359 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1360 usrv->service);
1361 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1362 break;
1363 wpabuf_put_str(resp, usrv->service);
1364 }
1365 os_free(str);
1366
1367 if (count == 0) {
1368 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1369 "available");
1370 /* Status Code */
1371 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1372 /* Response Data: empty */
1373 }
1374
1375 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1376}
1377
1378
1379void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1380 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1381{
1382 struct wpa_supplicant *wpa_s = ctx;
1383 const u8 *pos = tlvs;
1384 const u8 *end = tlvs + tlvs_len;
1385 const u8 *tlv_end;
1386 u16 slen;
1387 struct wpabuf *resp;
1388 u8 srv_proto, srv_trans_id;
1389 size_t buf_len;
1390 char *buf;
1391
1392 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1393 tlvs, tlvs_len);
1394 buf_len = 2 * tlvs_len + 1;
1395 buf = os_malloc(buf_len);
1396 if (buf) {
1397 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1398 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1399 MACSTR " %u %u %s",
1400 freq, MAC2STR(sa), dialog_token, update_indic,
1401 buf);
1402 os_free(buf);
1403 }
1404
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001405 if (wpa_s->p2p_sd_over_ctrl_iface) {
1406 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1407 update_indic, tlvs, tlvs_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001408 return; /* to be processed by an external program */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001409 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001410
1411 resp = wpabuf_alloc(10000);
1412 if (resp == NULL)
1413 return;
1414
1415 while (pos + 1 < end) {
1416 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1417 slen = WPA_GET_LE16(pos);
1418 pos += 2;
1419 if (pos + slen > end || slen < 2) {
1420 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1421 "length");
1422 wpabuf_free(resp);
1423 return;
1424 }
1425 tlv_end = pos + slen;
1426
1427 srv_proto = *pos++;
1428 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1429 srv_proto);
1430 srv_trans_id = *pos++;
1431 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1432 srv_trans_id);
1433
1434 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1435 pos, tlv_end - pos);
1436
1437
1438 if (wpa_s->force_long_sd) {
1439 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1440 "response");
1441 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1442 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1443 goto done;
1444 }
1445
1446 switch (srv_proto) {
1447 case P2P_SERV_ALL_SERVICES:
1448 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1449 "for all services");
1450 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1451 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1452 wpa_printf(MSG_DEBUG, "P2P: No service "
1453 "discovery protocols available");
1454 wpas_sd_add_proto_not_avail(
1455 resp, P2P_SERV_ALL_SERVICES,
1456 srv_trans_id);
1457 break;
1458 }
1459 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1460 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1461 break;
1462 case P2P_SERV_BONJOUR:
1463 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1464 pos, tlv_end - pos);
1465 break;
1466 case P2P_SERV_UPNP:
1467 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1468 pos, tlv_end - pos);
1469 break;
1470 default:
1471 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1472 "protocol %u", srv_proto);
1473 wpas_sd_add_proto_not_avail(resp, srv_proto,
1474 srv_trans_id);
1475 break;
1476 }
1477
1478 pos = tlv_end;
1479 }
1480
1481done:
1482 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1483 update_indic, tlvs, tlvs_len);
1484
1485 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1486
1487 wpabuf_free(resp);
1488}
1489
1490
1491void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1492 const u8 *tlvs, size_t tlvs_len)
1493{
1494 struct wpa_supplicant *wpa_s = ctx;
1495 const u8 *pos = tlvs;
1496 const u8 *end = tlvs + tlvs_len;
1497 const u8 *tlv_end;
1498 u16 slen;
1499 size_t buf_len;
1500 char *buf;
1501
1502 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1503 tlvs, tlvs_len);
1504 if (tlvs_len > 1500) {
1505 /* TODO: better way for handling this */
1506 wpa_msg_ctrl(wpa_s, MSG_INFO,
1507 P2P_EVENT_SERV_DISC_RESP MACSTR
1508 " %u <long response: %u bytes>",
1509 MAC2STR(sa), update_indic,
1510 (unsigned int) tlvs_len);
1511 } else {
1512 buf_len = 2 * tlvs_len + 1;
1513 buf = os_malloc(buf_len);
1514 if (buf) {
1515 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1516 wpa_msg_ctrl(wpa_s, MSG_INFO,
1517 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1518 MAC2STR(sa), update_indic, buf);
1519 os_free(buf);
1520 }
1521 }
1522
1523 while (pos < end) {
1524 u8 srv_proto, srv_trans_id, status;
1525
1526 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1527 slen = WPA_GET_LE16(pos);
1528 pos += 2;
1529 if (pos + slen > end || slen < 3) {
1530 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1531 "length");
1532 return;
1533 }
1534 tlv_end = pos + slen;
1535
1536 srv_proto = *pos++;
1537 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1538 srv_proto);
1539 srv_trans_id = *pos++;
1540 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1541 srv_trans_id);
1542 status = *pos++;
1543 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1544 status);
1545
1546 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1547 pos, tlv_end - pos);
1548
1549 pos = tlv_end;
1550 }
1551
1552 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
1553}
1554
1555
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001556u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1557 const struct wpabuf *tlvs)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001558{
1559 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001560 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001561 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001562 return 0;
1563 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001564}
1565
1566
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001567u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1568 u8 version, const char *query)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001569{
1570 struct wpabuf *tlvs;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001571 u64 ret;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001572
1573 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1574 if (tlvs == NULL)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001575 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001576 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1577 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1578 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1579 wpabuf_put_u8(tlvs, version);
1580 wpabuf_put_str(tlvs, query);
1581 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1582 wpabuf_free(tlvs);
1583 return ret;
1584}
1585
1586
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001587int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001588{
1589 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001590 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001591 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1592 return -1;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001593 return p2p_sd_cancel_request(wpa_s->global->p2p,
1594 (void *) (uintptr_t) req);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001595}
1596
1597
1598void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1599 const u8 *dst, u8 dialog_token,
1600 const struct wpabuf *resp_tlvs)
1601{
1602 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1603 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1604 resp_tlvs);
1605 return;
1606 }
1607 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1608 return;
1609 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1610 resp_tlvs);
1611}
1612
1613
1614void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1615{
1616 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1617 wpa_drv_p2p_service_update(wpa_s);
1618 return;
1619 }
1620 if (wpa_s->global->p2p)
1621 p2p_sd_service_update(wpa_s->global->p2p);
1622}
1623
1624
1625static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1626{
1627 dl_list_del(&bsrv->list);
1628 wpabuf_free(bsrv->query);
1629 wpabuf_free(bsrv->resp);
1630 os_free(bsrv);
1631}
1632
1633
1634static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1635{
1636 dl_list_del(&usrv->list);
1637 os_free(usrv->service);
1638 os_free(usrv);
1639}
1640
1641
1642void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1643{
1644 struct p2p_srv_bonjour *bsrv, *bn;
1645 struct p2p_srv_upnp *usrv, *un;
1646
1647 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1648 struct p2p_srv_bonjour, list)
1649 wpas_p2p_srv_bonjour_free(bsrv);
1650
1651 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1652 struct p2p_srv_upnp, list)
1653 wpas_p2p_srv_upnp_free(usrv);
1654
1655 wpas_p2p_sd_service_update(wpa_s);
1656}
1657
1658
1659int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1660 struct wpabuf *query, struct wpabuf *resp)
1661{
1662 struct p2p_srv_bonjour *bsrv;
1663
1664 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1665 if (bsrv) {
1666 wpabuf_free(query);
1667 wpabuf_free(bsrv->resp);
1668 bsrv->resp = resp;
1669 return 0;
1670 }
1671
1672 bsrv = os_zalloc(sizeof(*bsrv));
1673 if (bsrv == NULL)
1674 return -1;
1675 bsrv->query = query;
1676 bsrv->resp = resp;
1677 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1678
1679 wpas_p2p_sd_service_update(wpa_s);
1680 return 0;
1681}
1682
1683
1684int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1685 const struct wpabuf *query)
1686{
1687 struct p2p_srv_bonjour *bsrv;
1688
1689 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1690 if (bsrv == NULL)
1691 return -1;
1692 wpas_p2p_srv_bonjour_free(bsrv);
1693 wpas_p2p_sd_service_update(wpa_s);
1694 return 0;
1695}
1696
1697
1698int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1699 const char *service)
1700{
1701 struct p2p_srv_upnp *usrv;
1702
1703 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1704 return 0; /* Already listed */
1705 usrv = os_zalloc(sizeof(*usrv));
1706 if (usrv == NULL)
1707 return -1;
1708 usrv->version = version;
1709 usrv->service = os_strdup(service);
1710 if (usrv->service == NULL) {
1711 os_free(usrv);
1712 return -1;
1713 }
1714 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1715
1716 wpas_p2p_sd_service_update(wpa_s);
1717 return 0;
1718}
1719
1720
1721int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1722 const char *service)
1723{
1724 struct p2p_srv_upnp *usrv;
1725
1726 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1727 if (usrv == NULL)
1728 return -1;
1729 wpas_p2p_srv_upnp_free(usrv);
1730 wpas_p2p_sd_service_update(wpa_s);
1731 return 0;
1732}
1733
1734
1735static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
1736 const u8 *peer, const char *params,
1737 unsigned int generated_pin)
1738{
1739 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
1740 MAC2STR(peer), generated_pin, params);
1741}
1742
1743
1744static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1745 const u8 *peer, const char *params)
1746{
1747 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1748 MAC2STR(peer), params);
1749}
1750
1751
1752void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1753 const u8 *dev_addr, const u8 *pri_dev_type,
1754 const char *dev_name, u16 supp_config_methods,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001755 u8 dev_capab, u8 group_capab, const u8 *group_id,
1756 size_t group_id_len)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001757{
1758 struct wpa_supplicant *wpa_s = ctx;
1759 char devtype[WPS_DEV_TYPE_BUFSIZE];
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001760 char params[300];
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001761 u8 empty_dev_type[8];
1762 unsigned int generated_pin = 0;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001763 struct wpa_supplicant *group = NULL;
1764
1765 if (group_id) {
1766 for (group = wpa_s->global->ifaces; group; group = group->next)
1767 {
1768 struct wpa_ssid *s = group->current_ssid;
1769 if (s != NULL &&
1770 s->mode == WPAS_MODE_P2P_GO &&
1771 group_id_len - ETH_ALEN == s->ssid_len &&
1772 os_memcmp(group_id + ETH_ALEN, s->ssid,
1773 s->ssid_len) == 0)
1774 break;
1775 }
1776 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001777
1778 if (pri_dev_type == NULL) {
1779 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1780 pri_dev_type = empty_dev_type;
1781 }
1782 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1783 " pri_dev_type=%s name='%s' config_methods=0x%x "
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001784 "dev_capab=0x%x group_capab=0x%x%s%s",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001785 MAC2STR(dev_addr),
1786 wps_dev_type_bin2str(pri_dev_type, devtype,
1787 sizeof(devtype)),
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001788 dev_name, supp_config_methods, dev_capab, group_capab,
1789 group ? " group=" : "",
1790 group ? group->ifname : "");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001791 params[sizeof(params) - 1] = '\0';
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001792
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001793 if (config_methods & WPS_CONFIG_DISPLAY) {
1794 generated_pin = wps_generate_pin();
1795 wpas_prov_disc_local_display(wpa_s, peer, params,
1796 generated_pin);
1797 } else if (config_methods & WPS_CONFIG_KEYPAD)
1798 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1799 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1800 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1801 "%s", MAC2STR(peer), params);
Jouni Malinen75ecf522011-06-27 15:19:46 -07001802
1803 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
1804 P2P_PROV_DISC_SUCCESS,
1805 config_methods, generated_pin);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001806}
1807
1808
1809void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1810{
1811 struct wpa_supplicant *wpa_s = ctx;
1812 unsigned int generated_pin = 0;
1813
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001814 if (wpa_s->pending_pd_before_join &&
1815 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1816 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
1817 wpa_s->pending_pd_before_join = 0;
1818 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
1819 "join-existing-group operation");
1820 wpas_p2p_join_start(wpa_s);
1821 return;
1822 }
1823
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001824 if (config_methods & WPS_CONFIG_DISPLAY)
1825 wpas_prov_disc_local_keypad(wpa_s, peer, "");
1826 else if (config_methods & WPS_CONFIG_KEYPAD) {
1827 generated_pin = wps_generate_pin();
1828 wpas_prov_disc_local_display(wpa_s, peer, "", generated_pin);
1829 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1830 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1831 MAC2STR(peer));
1832
Jouni Malinen75ecf522011-06-27 15:19:46 -07001833 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1834 P2P_PROV_DISC_SUCCESS,
1835 config_methods, generated_pin);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001836}
1837
1838
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001839static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
1840 enum p2p_prov_disc_status status)
Jouni Malinen75ecf522011-06-27 15:19:46 -07001841{
1842 struct wpa_supplicant *wpa_s = ctx;
1843
1844 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
1845 status, 0, 0);
1846}
1847
1848
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001849static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1850 const u8 *go_dev_addr, const u8 *ssid,
1851 size_t ssid_len, int *go, u8 *group_bssid,
1852 int *force_freq, int persistent_group)
1853{
1854 struct wpa_supplicant *wpa_s = ctx;
1855 struct wpa_ssid *s;
1856 u8 cur_bssid[ETH_ALEN];
1857 int res;
1858 struct wpa_supplicant *grp;
1859
1860 if (!persistent_group) {
1861 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1862 " to join an active group", MAC2STR(sa));
1863 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
1864 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
1865 == 0 ||
1866 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
1867 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
1868 "authorized invitation");
1869 goto accept_inv;
1870 }
1871 /*
1872 * Do not accept the invitation automatically; notify user and
1873 * request approval.
1874 */
1875 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1876 }
1877
1878 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
1879 if (grp) {
1880 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
1881 "running persistent group");
1882 if (*go)
1883 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
1884 goto accept_inv;
1885 }
1886
1887 if (!wpa_s->conf->persistent_reconnect)
1888 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1889
1890 for (s = wpa_s->conf->ssid; s; s = s->next) {
1891 if (s->disabled == 2 &&
1892 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
1893 s->ssid_len == ssid_len &&
1894 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1895 break;
1896 }
1897
1898 if (!s) {
1899 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1900 " requested reinvocation of an unknown group",
1901 MAC2STR(sa));
1902 return P2P_SC_FAIL_UNKNOWN_GROUP;
1903 }
1904
1905 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
1906 *go = 1;
1907 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1908 wpa_printf(MSG_DEBUG, "P2P: The only available "
1909 "interface is already in use - reject "
1910 "invitation");
1911 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1912 }
1913 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
1914 } else if (s->mode == WPAS_MODE_P2P_GO) {
1915 *go = 1;
1916 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
1917 {
1918 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
1919 "interface address for the group");
1920 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1921 }
1922 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
1923 ETH_ALEN);
1924 }
1925
1926accept_inv:
1927 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
1928 wpa_s->assoc_freq) {
1929 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1930 "the channel we are already using");
1931 *force_freq = wpa_s->assoc_freq;
1932 }
1933
1934 res = wpa_drv_shared_freq(wpa_s);
1935 if (res > 0) {
1936 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1937 "with the channel we are already using on a "
1938 "shared interface");
1939 *force_freq = res;
1940 }
1941
1942 return P2P_SC_SUCCESS;
1943}
1944
1945
1946static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
1947 const u8 *ssid, size_t ssid_len,
1948 const u8 *go_dev_addr, u8 status,
1949 int op_freq)
1950{
1951 struct wpa_supplicant *wpa_s = ctx;
1952 struct wpa_ssid *s;
1953
1954 for (s = wpa_s->conf->ssid; s; s = s->next) {
1955 if (s->disabled == 2 &&
1956 s->ssid_len == ssid_len &&
1957 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1958 break;
1959 }
1960
1961 if (status == P2P_SC_SUCCESS) {
1962 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1963 " was accepted; op_freq=%d MHz",
1964 MAC2STR(sa), op_freq);
1965 if (s) {
1966 wpas_p2p_group_add_persistent(
1967 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
1968 } else if (bssid) {
1969 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
1970 wpa_s->p2p_wps_method);
1971 }
1972 return;
1973 }
1974
1975 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
1976 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1977 " was rejected (status %u)", MAC2STR(sa), status);
1978 return;
1979 }
1980
1981 if (!s) {
1982 if (bssid) {
1983 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1984 "sa=" MACSTR " go_dev_addr=" MACSTR
1985 " bssid=" MACSTR " unknown-network",
1986 MAC2STR(sa), MAC2STR(go_dev_addr),
1987 MAC2STR(bssid));
1988 } else {
1989 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1990 "sa=" MACSTR " go_dev_addr=" MACSTR
1991 " unknown-network",
1992 MAC2STR(sa), MAC2STR(go_dev_addr));
1993 }
1994 return;
1995 }
1996
1997 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
1998 " persistent=%d", MAC2STR(sa), s->id);
1999}
2000
2001
2002static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
2003{
2004 struct wpa_supplicant *wpa_s = ctx;
2005 struct wpa_ssid *ssid;
2006
2007 if (bssid) {
2008 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2009 "status=%d " MACSTR,
2010 status, MAC2STR(bssid));
2011 } else {
2012 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2013 "status=%d ", status);
2014 }
2015 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2016
2017 if (wpa_s->pending_invite_ssid_id == -1)
2018 return; /* Invitation to active group */
2019
2020 if (status != P2P_SC_SUCCESS) {
2021 wpas_p2p_remove_pending_group_interface(wpa_s);
2022 return;
2023 }
2024
2025 ssid = wpa_config_get_network(wpa_s->conf,
2026 wpa_s->pending_invite_ssid_id);
2027 if (ssid == NULL) {
2028 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2029 "data matching with invitation");
2030 return;
2031 }
2032
2033 wpas_p2p_group_add_persistent(wpa_s, ssid,
2034 ssid->mode == WPAS_MODE_P2P_GO, 0);
2035}
2036
2037
2038static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2039 struct p2p_channels *chan)
2040{
2041 int i, cla = 0;
2042
2043 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2044 "band");
2045
2046 /* Operating class 81 - 2.4 GHz band channels 1..13 */
2047 chan->reg_class[cla].reg_class = 81;
2048 chan->reg_class[cla].channels = 11;
2049 for (i = 0; i < 11; i++)
2050 chan->reg_class[cla].channel[i] = i + 1;
2051 cla++;
2052
2053 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2054 "band");
2055
2056 /* Operating class 115 - 5 GHz, channels 36-48 */
2057 chan->reg_class[cla].reg_class = 115;
2058 chan->reg_class[cla].channels = 4;
2059 chan->reg_class[cla].channel[0] = 36;
2060 chan->reg_class[cla].channel[1] = 40;
2061 chan->reg_class[cla].channel[2] = 44;
2062 chan->reg_class[cla].channel[3] = 48;
2063 cla++;
2064
2065 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2066 "band");
2067
2068 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2069 chan->reg_class[cla].reg_class = 124;
2070 chan->reg_class[cla].channels = 4;
2071 chan->reg_class[cla].channel[0] = 149;
2072 chan->reg_class[cla].channel[1] = 153;
2073 chan->reg_class[cla].channel[2] = 157;
2074 chan->reg_class[cla].channel[3] = 161;
2075 cla++;
2076
2077 chan->reg_classes = cla;
2078 return 0;
2079}
2080
2081
2082static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2083 u16 num_modes,
2084 enum hostapd_hw_mode mode)
2085{
2086 u16 i;
2087
2088 for (i = 0; i < num_modes; i++) {
2089 if (modes[i].mode == mode)
2090 return &modes[i];
2091 }
2092
2093 return NULL;
2094}
2095
2096
2097static int has_channel(struct hostapd_hw_modes *mode, u8 chan, int *flags)
2098{
2099 int i;
2100
2101 for (i = 0; i < mode->num_channels; i++) {
2102 if (mode->channels[i].chan == chan) {
2103 if (flags)
2104 *flags = mode->channels[i].flag;
2105 return !(mode->channels[i].flag &
2106 (HOSTAPD_CHAN_DISABLED |
2107 HOSTAPD_CHAN_PASSIVE_SCAN |
2108 HOSTAPD_CHAN_NO_IBSS |
2109 HOSTAPD_CHAN_RADAR));
2110 }
2111 }
2112
2113 return 0;
2114}
2115
2116
2117struct p2p_oper_class_map {
2118 enum hostapd_hw_mode mode;
2119 u8 op_class;
2120 u8 min_chan;
2121 u8 max_chan;
2122 u8 inc;
2123 enum { BW20, BW40PLUS, BW40MINUS } bw;
2124};
2125
2126static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
2127 struct p2p_channels *chan)
2128{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002129 struct hostapd_hw_modes *mode;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002130 int cla, op;
2131 struct p2p_oper_class_map op_class[] = {
2132 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2133 { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 },
2134#if 0 /* Do not enable HT40 on 2 GHz for now */
2135 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2136 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2137#endif
2138 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2139 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2140 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2141 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2142 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2143 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2144 { -1, 0, 0, 0, 0, BW20 }
2145 };
2146
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002147 if (wpa_s->hw.modes == NULL) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002148 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2149 "of all supported channels; assume dualband "
2150 "support");
2151 return wpas_p2p_default_channels(wpa_s, chan);
2152 }
2153
2154 cla = 0;
2155
2156 for (op = 0; op_class[op].op_class; op++) {
2157 struct p2p_oper_class_map *o = &op_class[op];
2158 u8 ch;
2159 struct p2p_reg_class *reg = NULL;
2160
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002161 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002162 if (mode == NULL)
2163 continue;
2164 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2165 int flag;
2166 if (!has_channel(mode, ch, &flag))
2167 continue;
2168 if (o->bw == BW40MINUS &&
2169 (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2170 !has_channel(mode, ch - 4, NULL)))
2171 continue;
2172 if (o->bw == BW40PLUS &&
2173 (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2174 !has_channel(mode, ch + 4, NULL)))
2175 continue;
2176 if (reg == NULL) {
2177 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2178 "class %u", o->op_class);
2179 reg = &chan->reg_class[cla];
2180 cla++;
2181 reg->reg_class = o->op_class;
2182 }
2183 reg->channel[reg->channels] = ch;
2184 reg->channels++;
2185 }
2186 if (reg) {
2187 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2188 reg->channel, reg->channels);
2189 }
2190 }
2191
2192 chan->reg_classes = cla;
2193
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002194 return 0;
2195}
2196
2197
2198static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2199 size_t buf_len)
2200{
2201 struct wpa_supplicant *wpa_s = ctx;
2202
2203 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2204 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2205 break;
2206 }
2207 if (wpa_s == NULL)
2208 return -1;
2209
2210 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2211}
2212
2213
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002214static int wpas_go_connected(void *ctx, const u8 *dev_addr)
2215{
2216 struct wpa_supplicant *wpa_s = ctx;
2217
2218 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2219 struct wpa_ssid *ssid = wpa_s->current_ssid;
2220 if (ssid == NULL)
2221 continue;
2222 if (ssid->mode != WPAS_MODE_INFRA)
2223 continue;
2224 if (wpa_s->wpa_state != WPA_COMPLETED &&
2225 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
2226 continue;
2227 if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
2228 return 1;
2229 }
2230
2231 return 0;
2232}
2233
2234
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002235/**
2236 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2237 * @global: Pointer to global data from wpa_supplicant_init()
2238 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2239 * Returns: 0 on success, -1 on failure
2240 */
2241int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2242{
2243 struct p2p_config p2p;
2244 unsigned int r;
2245 int i;
2246
2247 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2248 return 0;
2249
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002250 if (global->p2p)
2251 return 0;
2252
2253 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2254 struct p2p_params params;
2255
2256 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2257 os_memset(&params, 0, sizeof(params));
2258 params.dev_name = wpa_s->conf->device_name;
2259 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2260 WPS_DEV_TYPE_LEN);
2261 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2262 os_memcpy(params.sec_dev_type,
2263 wpa_s->conf->sec_device_type,
2264 params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2265
2266 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
2267 return -1;
2268
2269 return 0;
2270 }
2271
2272 os_memset(&p2p, 0, sizeof(p2p));
2273 p2p.msg_ctx = wpa_s;
2274 p2p.cb_ctx = wpa_s;
2275 p2p.p2p_scan = wpas_p2p_scan;
2276 p2p.send_action = wpas_send_action;
2277 p2p.send_action_done = wpas_send_action_done;
2278 p2p.go_neg_completed = wpas_go_neg_completed;
2279 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2280 p2p.dev_found = wpas_dev_found;
2281 p2p.dev_lost = wpas_dev_lost;
2282 p2p.start_listen = wpas_start_listen;
2283 p2p.stop_listen = wpas_stop_listen;
2284 p2p.send_probe_resp = wpas_send_probe_resp;
2285 p2p.sd_request = wpas_sd_request;
2286 p2p.sd_response = wpas_sd_response;
2287 p2p.prov_disc_req = wpas_prov_disc_req;
2288 p2p.prov_disc_resp = wpas_prov_disc_resp;
Jouni Malinen75ecf522011-06-27 15:19:46 -07002289 p2p.prov_disc_fail = wpas_prov_disc_fail;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002290 p2p.invitation_process = wpas_invitation_process;
2291 p2p.invitation_received = wpas_invitation_received;
2292 p2p.invitation_result = wpas_invitation_result;
2293 p2p.get_noa = wpas_get_noa;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002294 p2p.go_connected = wpas_go_connected;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002295
2296 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002297 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002298 p2p.dev_name = wpa_s->conf->device_name;
2299 p2p.manufacturer = wpa_s->conf->manufacturer;
2300 p2p.model_name = wpa_s->conf->model_name;
2301 p2p.model_number = wpa_s->conf->model_number;
2302 p2p.serial_number = wpa_s->conf->serial_number;
2303 if (wpa_s->wps) {
2304 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2305 p2p.config_methods = wpa_s->wps->config_methods;
2306 }
2307
2308 if (wpa_s->conf->p2p_listen_reg_class &&
2309 wpa_s->conf->p2p_listen_channel) {
2310 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2311 p2p.channel = wpa_s->conf->p2p_listen_channel;
2312 } else {
2313 p2p.reg_class = 81;
2314 /*
2315 * Pick one of the social channels randomly as the listen
2316 * channel.
2317 */
2318 os_get_random((u8 *) &r, sizeof(r));
2319 p2p.channel = 1 + (r % 3) * 5;
2320 }
2321 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
2322
2323 if (wpa_s->conf->p2p_oper_reg_class &&
2324 wpa_s->conf->p2p_oper_channel) {
2325 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2326 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2327 p2p.cfg_op_channel = 1;
2328 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2329 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2330
2331 } else {
2332 p2p.op_reg_class = 81;
2333 /*
2334 * Use random operation channel from (1, 6, 11) if no other
2335 * preference is indicated.
2336 */
2337 os_get_random((u8 *) &r, sizeof(r));
2338 p2p.op_channel = 1 + (r % 3) * 5;
2339 p2p.cfg_op_channel = 0;
2340 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2341 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2342 }
2343 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2344 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2345 p2p.country[2] = 0x04;
2346 } else
2347 os_memcpy(p2p.country, "XX\x04", 3);
2348
2349 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
2350 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2351 "channel list");
2352 return -1;
2353 }
2354
2355 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2356 WPS_DEV_TYPE_LEN);
2357
2358 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2359 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2360 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2361
2362 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2363 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2364
2365 p2p.max_peers = 100;
2366
2367 if (wpa_s->conf->p2p_ssid_postfix) {
2368 p2p.ssid_postfix_len =
2369 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2370 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2371 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2372 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2373 p2p.ssid_postfix_len);
2374 }
2375
2376 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2377
2378 global->p2p = p2p_init(&p2p);
2379 if (global->p2p == NULL)
2380 return -1;
2381
2382 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2383 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2384 continue;
2385 p2p_add_wps_vendor_extension(
2386 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2387 }
2388
2389 return 0;
2390}
2391
2392
2393/**
2394 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2395 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2396 *
2397 * This function deinitialize per-interface P2P data.
2398 */
2399void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2400{
2401 if (wpa_s->driver && wpa_s->drv_priv)
2402 wpa_drv_probe_req_report(wpa_s, 0);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002403
2404 if (wpa_s->go_params) {
2405 /* Clear any stored provisioning info */
2406 p2p_clear_provisioning_info(
2407 wpa_s->global->p2p,
2408 wpa_s->go_params->peer_interface_addr);
2409 }
2410
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002411 os_free(wpa_s->go_params);
2412 wpa_s->go_params = NULL;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002413 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2414 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002415 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002416 wpa_s->p2p_long_listen = 0;
2417 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2418 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
2419 wpas_p2p_remove_pending_group_interface(wpa_s);
2420
2421 /* TODO: remove group interface from the driver if this wpa_s instance
2422 * is on top of a P2P group interface */
2423}
2424
2425
2426/**
2427 * wpas_p2p_deinit_global - Deinitialize global P2P module
2428 * @global: Pointer to global data from wpa_supplicant_init()
2429 *
2430 * This function deinitializes the global (per device) P2P module.
2431 */
2432void wpas_p2p_deinit_global(struct wpa_global *global)
2433{
2434 struct wpa_supplicant *wpa_s, *tmp;
2435 char *ifname;
2436
2437 if (global->p2p == NULL)
2438 return;
2439
2440 /* Remove remaining P2P group interfaces */
2441 wpa_s = global->ifaces;
2442 if (wpa_s)
2443 wpas_p2p_service_flush(wpa_s);
2444 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2445 wpa_s = wpa_s->next;
2446 while (wpa_s) {
2447 enum wpa_driver_if_type type;
2448 tmp = global->ifaces;
2449 while (tmp &&
2450 (tmp == wpa_s ||
2451 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2452 tmp = tmp->next;
2453 }
2454 if (tmp == NULL)
2455 break;
2456 ifname = os_strdup(tmp->ifname);
2457 type = wpas_p2p_if_type(tmp->p2p_group_interface);
Dmitry Shmidte15c7b52011-08-03 15:04:35 -07002458 wpa_supplicant_remove_iface(global, tmp, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002459 if (ifname)
2460 wpa_drv_if_remove(wpa_s, type, ifname);
2461 os_free(ifname);
2462 }
2463
2464 /*
2465 * Deinit GO data on any possibly remaining interface (if main
2466 * interface is used as GO).
2467 */
2468 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2469 if (wpa_s->ap_iface)
2470 wpas_p2p_group_deinit(wpa_s);
2471 }
2472
2473 p2p_deinit(global->p2p);
2474 global->p2p = NULL;
2475}
2476
2477
2478static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2479{
2480 if (wpa_s->drv_flags &
2481 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2482 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
2483 return 1; /* P2P group requires a new interface in every case
2484 */
2485 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2486 return 0; /* driver does not support concurrent operations */
2487 if (wpa_s->global->ifaces->next)
2488 return 1; /* more that one interface already in use */
2489 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2490 return 1; /* this interface is already in use */
2491 return 0;
2492}
2493
2494
2495static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2496 const u8 *peer_addr,
2497 enum p2p_wps_method wps_method,
2498 int go_intent, const u8 *own_interface_addr,
2499 unsigned int force_freq, int persistent_group)
2500{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002501 if (persistent_group && wpa_s->conf->persistent_reconnect)
2502 persistent_group = 2;
2503
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002504 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2505 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2506 go_intent, own_interface_addr,
2507 force_freq, persistent_group);
2508 }
2509
2510 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2511 go_intent, own_interface_addr, force_freq,
2512 persistent_group);
2513}
2514
2515
2516static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2517 const u8 *peer_addr,
2518 enum p2p_wps_method wps_method,
2519 int go_intent, const u8 *own_interface_addr,
2520 unsigned int force_freq, int persistent_group)
2521{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002522 if (persistent_group && wpa_s->conf->persistent_reconnect)
2523 persistent_group = 2;
2524
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002525 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2526 return -1;
2527
2528 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2529 go_intent, own_interface_addr, force_freq,
2530 persistent_group);
2531}
2532
2533
2534static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
2535{
2536 wpa_s->p2p_join_scan_count++;
2537 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
2538 wpa_s->p2p_join_scan_count);
2539 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
2540 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
2541 " for join operationg - stop join attempt",
2542 MAC2STR(wpa_s->pending_join_iface_addr));
2543 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2544 wpa_msg(wpa_s->parent, MSG_INFO,
2545 P2P_EVENT_GROUP_FORMATION_FAILURE);
2546 }
2547}
2548
2549
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002550static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx, void *timeout_ctx)
2551{
2552 struct wpa_supplicant *wpa_s = eloop_ctx;
2553 if (!wpa_s->pending_pd_before_join)
2554 return;
2555 /*
2556 * Provision Discovery Response may have been lost - try to connect
2557 * anyway since we do not need any information from this PD.
2558 */
2559 wpa_printf(MSG_DEBUG, "P2P: PD timeout for join-existing-group - "
2560 "try to connect anyway");
2561 wpas_p2p_join_start(wpa_s);
2562}
2563
2564
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002565static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2566 struct wpa_scan_results *scan_res)
2567{
2568 struct wpa_bss *bss;
2569 int freq;
2570 u8 iface_addr[ETH_ALEN];
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002571#ifdef ANDROID_P2P
2572 int shared_freq = 0;
2573#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002574 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2575
2576 if (wpa_s->global->p2p_disabled)
2577 return;
2578
2579 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2580 scan_res ? (int) scan_res->num : -1);
2581
2582 if (scan_res)
2583 wpas_p2p_scan_res_handler(wpa_s, scan_res);
2584
2585 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2586 wpa_s->pending_join_iface_addr);
2587 if (freq < 0 &&
2588 p2p_get_interface_addr(wpa_s->global->p2p,
2589 wpa_s->pending_join_dev_addr,
2590 iface_addr) == 0 &&
2591 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
2592 {
2593 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
2594 "address for join from " MACSTR " to " MACSTR
2595 " based on newly discovered P2P peer entry",
2596 MAC2STR(wpa_s->pending_join_iface_addr),
2597 MAC2STR(iface_addr));
2598 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
2599 ETH_ALEN);
2600
2601 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2602 wpa_s->pending_join_iface_addr);
2603 }
2604 if (freq >= 0) {
2605 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2606 "from P2P peer table: %d MHz", freq);
2607 }
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002608
2609#ifdef ANDROID_P2P
2610 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT) &&
2611 ((shared_freq = wpa_drv_shared_freq(wpa_s)) > 0) && (shared_freq != freq)) {
2612 wpa_msg(wpa_s->parent, MSG_INFO,
2613 P2P_EVENT_GROUP_FORMATION_FAILURE "reason=FREQ_CONFLICT");
2614 return;
2615 }
2616#endif
2617
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002618 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
2619 if (bss) {
2620 freq = bss->freq;
2621 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2622 "from BSS table: %d MHz", freq);
2623 }
2624 if (freq > 0) {
2625 u16 method;
2626
2627 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2628 "prior to joining an existing group (GO " MACSTR
2629 " freq=%u MHz)",
2630 MAC2STR(wpa_s->pending_join_dev_addr), freq);
2631 wpa_s->pending_pd_before_join = 1;
2632
2633 switch (wpa_s->pending_join_wps_method) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002634 case WPS_PIN_DISPLAY:
2635 method = WPS_CONFIG_KEYPAD;
2636 break;
2637 case WPS_PIN_KEYPAD:
2638 method = WPS_CONFIG_DISPLAY;
2639 break;
2640 case WPS_PBC:
2641 method = WPS_CONFIG_PUSHBUTTON;
2642 break;
2643 default:
2644 method = 0;
2645 break;
2646 }
2647
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002648 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
2649 wpa_s->pending_join_dev_addr) ==
2650 method)) {
2651 /*
2652 * We have already performed provision discovery for
2653 * joining the group. Proceed directly to join
2654 * operation without duplicated provision discovery. */
2655 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
2656 "with " MACSTR " already done - proceed to "
2657 "join",
2658 MAC2STR(wpa_s->pending_join_dev_addr));
2659 wpa_s->pending_pd_before_join = 0;
2660 goto start;
2661 }
2662
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002663 if (p2p_prov_disc_req(wpa_s->global->p2p,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002664 wpa_s->pending_join_dev_addr, method, 1,
2665 freq) < 0) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002666 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2667 "Discovery Request before joining an "
2668 "existing group");
2669 wpa_s->pending_pd_before_join = 0;
2670 goto start;
2671 }
2672
2673 /*
2674 * Actual join operation will be started from the Action frame
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002675 * TX status callback (if no ACK is received) or when the
2676 * Provision Discovery Response is received. Use a short
2677 * timeout as a backup mechanism should the Provision Discovery
2678 * Response be lost for any reason.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002679 */
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002680 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s,
2681 NULL);
2682 eloop_register_timeout(2, 0, wpas_p2p_pd_before_join_timeout,
2683 wpa_s, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002684 return;
2685 }
2686
2687 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
2688 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2689 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2690 wpas_p2p_check_join_scan_limit(wpa_s);
2691 return;
2692
2693start:
2694 /* Start join operation immediately */
2695 wpas_p2p_join_start(wpa_s);
2696}
2697
2698
2699static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2700{
2701 struct wpa_supplicant *wpa_s = eloop_ctx;
2702 int ret;
2703 struct wpa_driver_scan_params params;
2704 struct wpabuf *wps_ie, *ies;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002705 size_t ielen;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002706
2707 os_memset(&params, 0, sizeof(params));
2708
2709 /* P2P Wildcard SSID */
2710 params.num_ssids = 1;
2711 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2712 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2713
2714 wpa_s->wps->dev.p2p = 1;
2715 wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
2716 WPS_REQ_ENROLLEE, 0, NULL);
2717 if (wps_ie == NULL) {
2718 wpas_p2p_scan_res_join(wpa_s, NULL);
2719 return;
2720 }
2721
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002722 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
2723 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002724 if (ies == NULL) {
2725 wpabuf_free(wps_ie);
2726 wpas_p2p_scan_res_join(wpa_s, NULL);
2727 return;
2728 }
2729 wpabuf_put_buf(ies, wps_ie);
2730 wpabuf_free(wps_ie);
2731
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002732 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002733
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002734 params.p2p_probe = 1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002735 params.extra_ies = wpabuf_head(ies);
2736 params.extra_ies_len = wpabuf_len(ies);
2737
2738 /*
2739 * Run a scan to update BSS table and start Provision Discovery once
2740 * the new scan results become available.
2741 */
2742 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002743 ret = wpa_drv_scan(wpa_s, &params);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002744
2745 wpabuf_free(ies);
2746
2747 if (ret) {
2748 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2749 "try again later");
2750 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2751 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2752 wpas_p2p_check_join_scan_limit(wpa_s);
2753 }
2754}
2755
2756
2757static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2758 const u8 *dev_addr, enum p2p_wps_method wps_method)
2759{
2760 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2761 MACSTR " dev " MACSTR ")",
2762 MAC2STR(iface_addr), MAC2STR(dev_addr));
2763
2764 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2765 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2766 wpa_s->pending_join_wps_method = wps_method;
2767
2768 /* Make sure we are not running find during connection establishment */
2769 wpas_p2p_stop_find(wpa_s);
2770
2771 wpa_s->p2p_join_scan_count = 0;
2772 wpas_p2p_join_scan(wpa_s, NULL);
2773 return 0;
2774}
2775
2776
2777static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2778{
2779 struct wpa_supplicant *group;
2780 struct p2p_go_neg_results res;
2781
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002782 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002783 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2784 if (group == NULL)
2785 return -1;
2786 if (group != wpa_s) {
2787 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2788 sizeof(group->p2p_pin));
2789 group->p2p_wps_method = wpa_s->p2p_wps_method;
2790 }
2791
2792 group->p2p_in_provisioning = 1;
2793
2794 os_memset(&res, 0, sizeof(res));
2795 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2796 ETH_ALEN);
2797 res.wps_method = wpa_s->pending_join_wps_method;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002798 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
2799 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
2800 "starting client");
2801 wpa_drv_cancel_remain_on_channel(wpa_s);
2802 wpa_s->off_channel_freq = 0;
2803 wpa_s->roc_waiting_drv_freq = 0;
2804 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002805 wpas_start_wps_enrollee(group, &res);
2806
2807 /*
2808 * Allow a longer timeout for join-a-running-group than normal 15
2809 * second group formation timeout since the GO may not have authorized
2810 * our connection yet.
2811 */
2812 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2813 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
2814 wpa_s, NULL);
2815
2816 return 0;
2817}
2818
2819
2820/**
2821 * wpas_p2p_connect - Request P2P Group Formation to be started
2822 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2823 * @peer_addr: Address of the peer P2P Device
2824 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2825 * @persistent_group: Whether to create a persistent group
2826 * @join: Whether to join an existing group (as a client) instead of starting
2827 * Group Owner negotiation; @peer_addr is BSSID in that case
2828 * @auth: Whether to only authorize the connection instead of doing that and
2829 * initiating Group Owner negotiation
2830 * @go_intent: GO Intent or -1 to use default
2831 * @freq: Frequency for the group or 0 for auto-selection
2832 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
2833 * failure, -2 on failure due to channel not currently available,
2834 * -3 if forced channel is not supported
2835 */
2836int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2837 const char *pin, enum p2p_wps_method wps_method,
2838 int persistent_group, int join, int auth, int go_intent,
2839 int freq)
2840{
2841 int force_freq = 0, oper_freq = 0;
2842 u8 bssid[ETH_ALEN];
2843 int ret = 0;
2844 enum wpa_driver_if_type iftype;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002845 const u8 *if_addr;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002846
2847 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2848 return -1;
2849
2850 if (go_intent < 0)
2851 go_intent = wpa_s->conf->p2p_go_intent;
2852
2853 if (!auth)
2854 wpa_s->p2p_long_listen = 0;
2855
2856 wpa_s->p2p_wps_method = wps_method;
2857
2858 if (pin)
2859 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2860 else if (wps_method == WPS_PIN_DISPLAY) {
2861 ret = wps_generate_pin();
2862 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2863 ret);
2864 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2865 wpa_s->p2p_pin);
2866 } else
2867 wpa_s->p2p_pin[0] = '\0';
2868
2869 if (join) {
2870 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
2871 if (auth) {
2872 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2873 "connect a running group from " MACSTR,
2874 MAC2STR(peer_addr));
2875 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2876 return ret;
2877 }
2878 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
2879 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
2880 iface_addr) < 0) {
2881 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
2882 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
2883 dev_addr);
2884 }
2885 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) <
2886 0)
2887 return -1;
2888 return ret;
2889 }
2890
2891 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2892 wpa_s->assoc_freq)
2893 oper_freq = wpa_s->assoc_freq;
2894 else {
2895 oper_freq = wpa_drv_shared_freq(wpa_s);
2896 if (oper_freq < 0)
2897 oper_freq = 0;
2898 }
2899
2900 if (freq > 0) {
2901 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
2902 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
2903 "(%u MHz) is not supported for P2P uses",
2904 freq);
2905 return -3;
2906 }
2907
2908 if (oper_freq > 0 && freq != oper_freq &&
2909 !(wpa_s->drv_flags &
2910 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2911 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2912 "on %u MHz while connected on another "
2913 "channel (%u MHz)", freq, oper_freq);
2914 return -2;
2915 }
2916 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2917 "requested channel (%u MHz)", freq);
2918 force_freq = freq;
2919 } else if (oper_freq > 0 &&
2920 !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
2921 if (!(wpa_s->drv_flags &
2922 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2923 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2924 "while connected on non-P2P supported "
2925 "channel (%u MHz)", oper_freq);
2926 return -2;
2927 }
2928 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
2929 "(%u MHz) not available for P2P - try to use "
2930 "another channel", oper_freq);
2931 force_freq = 0;
2932 } else if (oper_freq > 0) {
2933 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2934 "channel we are already using (%u MHz) on another "
2935 "interface", oper_freq);
2936 force_freq = oper_freq;
2937 }
2938
2939 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
2940
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002941 if (wpa_s->create_p2p_iface) {
2942 /* Prepare to add a new interface for the group */
2943 iftype = WPA_IF_P2P_GROUP;
2944 if (go_intent == 15)
2945 iftype = WPA_IF_P2P_GO;
2946 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
2947 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2948 "interface for the group");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002949 return -1;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002950 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002951
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002952 if_addr = wpa_s->pending_interface_addr;
2953 } else
2954 if_addr = wpa_s->own_addr;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002955
2956 if (auth) {
2957 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002958 go_intent, if_addr,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002959 force_freq, persistent_group) < 0)
2960 return -1;
2961 return ret;
2962 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002963
2964 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
2965 go_intent, if_addr, force_freq,
2966 persistent_group) < 0) {
2967 if (wpa_s->create_p2p_iface)
2968 wpas_p2p_remove_pending_group_interface(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002969 return -1;
2970 }
2971 return ret;
2972}
2973
2974
2975/**
2976 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
2977 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2978 * @freq: Frequency of the channel in MHz
2979 * @duration: Duration of the stay on the channel in milliseconds
2980 *
2981 * This callback is called when the driver indicates that it has started the
2982 * requested remain-on-channel duration.
2983 */
2984void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2985 unsigned int freq, unsigned int duration)
2986{
2987 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2988 return;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002989 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
2990 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
2991 wpa_s->pending_listen_duration);
2992 wpa_s->pending_listen_freq = 0;
2993 }
2994}
2995
2996
2997static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
2998 unsigned int timeout)
2999{
3000 /* Limit maximum Listen state time based on driver limitation. */
3001 if (timeout > wpa_s->max_remain_on_chan)
3002 timeout = wpa_s->max_remain_on_chan;
3003
3004 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3005 return wpa_drv_p2p_listen(wpa_s, timeout);
3006
3007 return p2p_listen(wpa_s->global->p2p, timeout);
3008}
3009
3010
3011/**
3012 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3013 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3014 * @freq: Frequency of the channel in MHz
3015 *
3016 * This callback is called when the driver indicates that a remain-on-channel
3017 * operation has been completed, i.e., the duration on the requested channel
3018 * has timed out.
3019 */
3020void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3021 unsigned int freq)
3022{
3023 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
3024 "(p2p_long_listen=%d ms pending_action_tx=%p)",
3025 wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003026 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3027 return;
3028 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
3029 return; /* P2P module started a new operation */
3030 if (wpa_s->pending_action_tx)
3031 return;
3032 if (wpa_s->p2p_long_listen > 0)
3033 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
3034 if (wpa_s->p2p_long_listen > 0) {
3035 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
3036 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
3037 }
3038}
3039
3040
3041/**
3042 * wpas_p2p_group_remove - Remove a P2P group
3043 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3044 * @ifname: Network interface name of the group interface or "*" to remove all
3045 * groups
3046 * Returns: 0 on success, -1 on failure
3047 *
3048 * This function is used to remove a P2P group. This can be used to disconnect
3049 * from a group in which the local end is a P2P Client or to end a P2P Group in
3050 * case the local end is the Group Owner. If a virtual network interface was
3051 * created for this group, that interface will be removed. Otherwise, only the
3052 * configured P2P group network will be removed from the interface.
3053 */
3054int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
3055{
3056 struct wpa_global *global = wpa_s->global;
3057
3058 if (os_strcmp(ifname, "*") == 0) {
3059 struct wpa_supplicant *prev;
3060 wpa_s = global->ifaces;
3061 while (wpa_s) {
3062 prev = wpa_s;
3063 wpa_s = wpa_s->next;
3064 wpas_p2p_disconnect(prev);
3065 }
3066 return 0;
3067 }
3068
3069 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3070 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3071 break;
3072 }
3073
3074 return wpas_p2p_disconnect(wpa_s);
3075}
3076
3077
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003078static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
3079 struct p2p_go_neg_results *params,
3080 int freq)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003081{
3082 u8 bssid[ETH_ALEN];
3083 int res;
3084
3085 os_memset(params, 0, sizeof(*params));
3086 params->role_go = 1;
3087 if (freq) {
3088 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
3089 "frequency %d MHz", freq);
3090 params->freq = freq;
3091 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
3092 wpa_s->conf->p2p_oper_channel >= 1 &&
3093 wpa_s->conf->p2p_oper_channel <= 11) {
3094 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
3095 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3096 "frequency %d MHz", params->freq);
3097 } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
Jouni Malinen87fd2792011-05-16 18:35:42 +03003098 wpa_s->conf->p2p_oper_reg_class == 124) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003099 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
3100 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3101 "frequency %d MHz", params->freq);
3102 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3103 wpa_s->best_overall_freq > 0 &&
3104 p2p_supported_freq(wpa_s->global->p2p,
3105 wpa_s->best_overall_freq)) {
3106 params->freq = wpa_s->best_overall_freq;
3107 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
3108 "channel %d MHz", params->freq);
3109 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3110 wpa_s->best_24_freq > 0 &&
3111 p2p_supported_freq(wpa_s->global->p2p,
3112 wpa_s->best_24_freq)) {
3113 params->freq = wpa_s->best_24_freq;
3114 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
3115 "channel %d MHz", params->freq);
3116 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3117 wpa_s->best_5_freq > 0 &&
3118 p2p_supported_freq(wpa_s->global->p2p,
3119 wpa_s->best_5_freq)) {
3120 params->freq = wpa_s->best_5_freq;
3121 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
3122 "channel %d MHz", params->freq);
3123 } else {
3124 params->freq = 2412;
3125 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
3126 "known)", params->freq);
3127 }
3128
3129 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3130 wpa_s->assoc_freq && !freq) {
3131 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3132 "already using");
3133 params->freq = wpa_s->assoc_freq;
3134 }
3135
3136 res = wpa_drv_shared_freq(wpa_s);
3137 if (res > 0 && !freq) {
3138 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3139 "already using on a shared interface");
3140 params->freq = res;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003141 } else if (res > 0 && freq != res &&
3142 !(wpa_s->drv_flags &
3143 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3144 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz "
3145 "while connected on another channel (%u MHz)",
3146 freq, res);
3147 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003148 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003149
3150 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003151}
3152
3153
3154static struct wpa_supplicant *
3155wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3156 int go)
3157{
3158 struct wpa_supplicant *group_wpa_s;
3159
3160 if (!wpas_p2p_create_iface(wpa_s))
3161 return wpa_s;
3162
3163 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3164 WPA_IF_P2P_CLIENT) < 0)
3165 return NULL;
3166 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3167 if (group_wpa_s == NULL) {
3168 wpas_p2p_remove_pending_group_interface(wpa_s);
3169 return NULL;
3170 }
3171
3172 return group_wpa_s;
3173}
3174
3175
3176/**
3177 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3178 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3179 * @persistent_group: Whether to create a persistent group
3180 * @freq: Frequency for the group or 0 to indicate no hardcoding
3181 * Returns: 0 on success, -1 on failure
3182 *
3183 * This function creates a new P2P group with the local end as the Group Owner,
3184 * i.e., without using Group Owner Negotiation.
3185 */
3186int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
3187 int freq)
3188{
3189 struct p2p_go_neg_results params;
3190 unsigned int r;
3191
3192 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3193 return -1;
3194
Dmitry Shmidtdca39792011-09-06 11:17:33 -07003195 /* Make sure we are not running find during connection establishment */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003196 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
Dmitry Shmidtdca39792011-09-06 11:17:33 -07003197 wpas_p2p_stop_find(wpa_s);
Dmitry Shmidtdca39792011-09-06 11:17:33 -07003198
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003199 if (freq == 2) {
3200 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3201 "band");
3202 if (wpa_s->best_24_freq > 0 &&
3203 p2p_supported_freq(wpa_s->global->p2p,
3204 wpa_s->best_24_freq)) {
3205 freq = wpa_s->best_24_freq;
3206 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3207 "channel: %d MHz", freq);
3208 } else {
3209 os_get_random((u8 *) &r, sizeof(r));
3210 freq = 2412 + (r % 3) * 25;
3211 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3212 "channel: %d MHz", freq);
3213 }
3214 }
3215
3216 if (freq == 5) {
3217 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3218 "band");
3219 if (wpa_s->best_5_freq > 0 &&
3220 p2p_supported_freq(wpa_s->global->p2p,
3221 wpa_s->best_5_freq)) {
3222 freq = wpa_s->best_5_freq;
3223 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3224 "channel: %d MHz", freq);
3225 } else {
3226 os_get_random((u8 *) &r, sizeof(r));
3227 freq = 5180 + (r % 4) * 20;
3228 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3229 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3230 "5 GHz channel for P2P group");
3231 return -1;
3232 }
3233 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3234 "channel: %d MHz", freq);
3235 }
3236 }
3237
3238 if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3239 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3240 "(%u MHz) is not supported for P2P uses",
3241 freq);
3242 return -1;
3243 }
3244
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003245 if (wpas_p2p_init_go_params(wpa_s, &params, freq))
3246 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003247 p2p_go_params(wpa_s->global->p2p, &params);
3248 params.persistent_group = persistent_group;
3249
3250 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3251 if (wpa_s == NULL)
3252 return -1;
3253 wpas_start_wps_go(wpa_s, &params, 0);
3254
3255 return 0;
3256}
3257
3258
3259static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3260 struct wpa_ssid *params, int addr_allocated)
3261{
3262 struct wpa_ssid *ssid;
3263
3264 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3265 if (wpa_s == NULL)
3266 return -1;
3267
3268 wpa_supplicant_ap_deinit(wpa_s);
3269
3270 ssid = wpa_config_add_network(wpa_s->conf);
3271 if (ssid == NULL)
3272 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003273 wpa_config_set_network_defaults(ssid);
3274 ssid->temporary = 1;
3275 ssid->proto = WPA_PROTO_RSN;
3276 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3277 ssid->group_cipher = WPA_CIPHER_CCMP;
3278 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3279 ssid->ssid = os_malloc(params->ssid_len);
3280 if (ssid->ssid == NULL) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003281 wpa_config_remove_network(wpa_s->conf, ssid->id);
3282 return -1;
3283 }
3284 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3285 ssid->ssid_len = params->ssid_len;
3286 ssid->p2p_group = 1;
3287 ssid->export_keys = 1;
3288 if (params->psk_set) {
3289 os_memcpy(ssid->psk, params->psk, 32);
3290 ssid->psk_set = 1;
3291 }
3292 if (params->passphrase)
3293 ssid->passphrase = os_strdup(params->passphrase);
3294
3295 wpa_supplicant_select_network(wpa_s, ssid);
3296
3297 wpa_s->show_group_started = 1;
3298
3299 return 0;
3300}
3301
3302
3303int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3304 struct wpa_ssid *ssid, int addr_allocated,
3305 int freq)
3306{
3307 struct p2p_go_neg_results params;
3308 int go = 0;
3309
3310 if (ssid->disabled != 2 || ssid->ssid == NULL)
3311 return -1;
3312
3313 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
3314 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
3315 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
3316 "already running");
3317 return 0;
3318 }
3319
3320 /* Make sure we are not running find during connection establishment */
3321 wpas_p2p_stop_find(wpa_s);
3322
3323 if (ssid->mode == WPAS_MODE_INFRA)
3324 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
3325
3326 if (ssid->mode != WPAS_MODE_P2P_GO)
3327 return -1;
3328
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003329 if (wpas_p2p_init_go_params(wpa_s, &params, freq))
3330 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003331
3332 params.role_go = 1;
3333 if (ssid->passphrase == NULL ||
3334 os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
3335 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
3336 "group");
3337 return -1;
3338 }
3339 os_strlcpy(params.passphrase, ssid->passphrase,
3340 sizeof(params.passphrase));
3341 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
3342 params.ssid_len = ssid->ssid_len;
3343 params.persistent_group = 1;
3344
3345 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
3346 if (wpa_s == NULL)
3347 return -1;
3348
3349 wpas_start_wps_go(wpa_s, &params, 0);
3350
3351 return 0;
3352}
3353
3354
3355static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
3356 struct wpabuf *proberesp_ies)
3357{
3358 struct wpa_supplicant *wpa_s = ctx;
3359 if (wpa_s->ap_iface) {
3360 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003361 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
3362 wpabuf_free(beacon_ies);
3363 wpabuf_free(proberesp_ies);
3364 return;
3365 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003366 if (beacon_ies) {
3367 wpabuf_free(hapd->p2p_beacon_ie);
3368 hapd->p2p_beacon_ie = beacon_ies;
3369 }
3370 wpabuf_free(hapd->p2p_probe_resp_ie);
3371 hapd->p2p_probe_resp_ie = proberesp_ies;
3372 } else {
3373 wpabuf_free(beacon_ies);
3374 wpabuf_free(proberesp_ies);
3375 }
3376 wpa_supplicant_ap_update_beacon(wpa_s);
3377}
3378
3379
3380static void wpas_p2p_idle_update(void *ctx, int idle)
3381{
3382 struct wpa_supplicant *wpa_s = ctx;
3383 if (!wpa_s->ap_iface)
3384 return;
3385 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
3386 if (idle)
3387 wpas_p2p_set_group_idle_timeout(wpa_s);
3388 else
3389 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
3390}
3391
3392
3393struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
3394 int persistent_group,
3395 int group_formation)
3396{
3397 struct p2p_group *group;
3398 struct p2p_group_config *cfg;
3399
3400 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3401 return NULL;
3402 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3403 return NULL;
3404
3405 cfg = os_zalloc(sizeof(*cfg));
3406 if (cfg == NULL)
3407 return NULL;
3408
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003409 if (persistent_group && wpa_s->conf->persistent_reconnect)
3410 cfg->persistent_group = 2;
3411 else if (persistent_group)
3412 cfg->persistent_group = 1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003413 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3414 if (wpa_s->max_stations &&
3415 wpa_s->max_stations < wpa_s->conf->max_num_sta)
3416 cfg->max_clients = wpa_s->max_stations;
3417 else
3418 cfg->max_clients = wpa_s->conf->max_num_sta;
3419 cfg->cb_ctx = wpa_s;
3420 cfg->ie_update = wpas_p2p_ie_update;
3421 cfg->idle_update = wpas_p2p_idle_update;
3422
3423 group = p2p_group_init(wpa_s->global->p2p, cfg);
3424 if (group == NULL)
3425 os_free(cfg);
3426 if (!group_formation)
3427 p2p_group_notif_formation_done(group);
3428 wpa_s->p2p_group = group;
3429 return group;
3430}
3431
3432
3433void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3434 int registrar)
3435{
3436 if (!wpa_s->p2p_in_provisioning) {
3437 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
3438 "provisioning not in progress");
3439 return;
3440 }
3441
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003442 /* Clear any stored provisioning info */
3443 p2p_clear_provisioning_info(wpa_s->global->p2p, peer_addr);
3444
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003445 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
3446 NULL);
3447 if (wpa_s->global->p2p)
3448 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
3449 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3450 wpa_drv_wps_success_cb(wpa_s, peer_addr);
3451 wpas_group_formation_completed(wpa_s, 1);
3452}
3453
3454
Jouni Malinen75ecf522011-06-27 15:19:46 -07003455void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
3456 struct wps_event_fail *fail)
3457{
3458 if (!wpa_s->p2p_in_provisioning) {
3459 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
3460 "provisioning not in progress");
3461 return;
3462 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003463
3464 if (wpa_s->go_params) {
3465 p2p_clear_provisioning_info(
3466 wpa_s->global->p2p,
3467 wpa_s->go_params->peer_interface_addr);
3468 }
3469
Jouni Malinen75ecf522011-06-27 15:19:46 -07003470 wpas_notify_p2p_wps_failed(wpa_s, fail);
3471}
3472
3473
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003474int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003475 const char *config_method, int join)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003476{
3477 u16 config_methods;
3478
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003479 if (os_strncmp(config_method, "display", 7) == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003480 config_methods = WPS_CONFIG_DISPLAY;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003481 else if (os_strncmp(config_method, "keypad", 6) == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003482 config_methods = WPS_CONFIG_KEYPAD;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003483 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
3484 os_strncmp(config_method, "pushbutton", 10) == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003485 config_methods = WPS_CONFIG_PUSHBUTTON;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003486 else {
3487 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003488 return -1;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003489 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003490
3491 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3492 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003493 config_methods, join);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003494 }
3495
3496 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
3497 return -1;
3498
3499 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003500 config_methods, join, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003501}
3502
3503
3504int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
3505 char *end)
3506{
3507 return p2p_scan_result_text(ies, ies_len, buf, end);
3508}
3509
3510
3511static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
3512{
3513 if (!wpa_s->pending_action_tx)
3514 return;
3515
3516 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
3517 "operation request");
3518 wpabuf_free(wpa_s->pending_action_tx);
3519 wpa_s->pending_action_tx = NULL;
3520}
3521
3522
3523int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
3524 enum p2p_discovery_type type,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003525 unsigned int num_req_dev_types, const u8 *req_dev_types,
3526 const u8 *dev_id)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003527{
3528 wpas_p2p_clear_pending_action_tx(wpa_s);
3529 wpa_s->p2p_long_listen = 0;
3530
3531 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3532 return wpa_drv_p2p_find(wpa_s, timeout, type);
3533
3534 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3535 return -1;
3536
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003537 wpa_supplicant_cancel_sched_scan(wpa_s);
3538
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003539 return p2p_find(wpa_s->global->p2p, timeout, type,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003540 num_req_dev_types, req_dev_types, dev_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003541}
3542
3543
3544void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
3545{
3546 wpas_p2p_clear_pending_action_tx(wpa_s);
3547 wpa_s->p2p_long_listen = 0;
3548 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3549 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003550 wpa_s->p2p_cb_on_scan_complete = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003551
3552 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3553 wpa_drv_p2p_stop_find(wpa_s);
3554 return;
3555 }
3556
3557 if (wpa_s->global->p2p)
3558 p2p_stop_find(wpa_s->global->p2p);
3559
3560 wpas_p2p_remove_pending_group_interface(wpa_s);
3561}
3562
3563
3564static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3565{
3566 struct wpa_supplicant *wpa_s = eloop_ctx;
3567 wpa_s->p2p_long_listen = 0;
3568}
3569
3570
3571int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
3572{
3573 int res;
3574
3575 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3576 return -1;
3577
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003578 wpa_supplicant_cancel_sched_scan(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003579 wpas_p2p_clear_pending_action_tx(wpa_s);
3580
3581 if (timeout == 0) {
3582 /*
3583 * This is a request for unlimited Listen state. However, at
3584 * least for now, this is mapped to a Listen state for one
3585 * hour.
3586 */
3587 timeout = 3600;
3588 }
3589 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3590 wpa_s->p2p_long_listen = 0;
3591
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003592 /*
3593 * Stop previous find/listen operation to avoid trying to request a new
3594 * remain-on-channel operation while the driver is still running the
3595 * previous one.
3596 */
3597 if (wpa_s->global->p2p)
3598 p2p_stop_find(wpa_s->global->p2p);
3599
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003600 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
3601 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
3602 wpa_s->p2p_long_listen = timeout * 1000;
3603 eloop_register_timeout(timeout, 0,
3604 wpas_p2p_long_listen_timeout,
3605 wpa_s, NULL);
3606 }
3607
3608 return res;
3609}
3610
3611
3612int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
3613 u8 *buf, size_t len, int p2p_group)
3614{
3615 struct wpabuf *p2p_ie;
3616 int ret;
3617
3618 if (wpa_s->global->p2p_disabled)
3619 return -1;
3620 if (wpa_s->global->p2p == NULL)
3621 return -1;
3622 if (bss == NULL)
3623 return -1;
3624
3625 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3626 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3627 p2p_group, p2p_ie);
3628 wpabuf_free(p2p_ie);
3629
3630 return ret;
3631}
3632
3633
3634int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003635 const u8 *dst, const u8 *bssid,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003636 const u8 *ie, size_t ie_len)
3637{
3638 if (wpa_s->global->p2p_disabled)
3639 return 0;
3640 if (wpa_s->global->p2p == NULL)
3641 return 0;
3642
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003643 return p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
3644 ie, ie_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003645}
3646
3647
3648void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3649 const u8 *sa, const u8 *bssid,
3650 u8 category, const u8 *data, size_t len, int freq)
3651{
3652 if (wpa_s->global->p2p_disabled)
3653 return;
3654 if (wpa_s->global->p2p == NULL)
3655 return;
3656
3657 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3658 freq);
3659}
3660
3661
3662void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3663{
3664 if (wpa_s->global->p2p_disabled)
3665 return;
3666 if (wpa_s->global->p2p == NULL)
3667 return;
3668
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003669 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003670}
3671
3672
3673void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3674{
3675 p2p_group_deinit(wpa_s->p2p_group);
3676 wpa_s->p2p_group = NULL;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003677
3678 wpa_s->ap_configured_cb = NULL;
3679 wpa_s->ap_configured_cb_ctx = NULL;
3680 wpa_s->ap_configured_cb_data = NULL;
3681 wpa_s->connect_without_scan = NULL;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003682}
3683
3684
3685int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3686{
3687 wpa_s->p2p_long_listen = 0;
3688
3689 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3690 return wpa_drv_p2p_reject(wpa_s, addr);
3691
3692 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3693 return -1;
3694
3695 return p2p_reject(wpa_s->global->p2p, addr);
3696}
3697
3698
3699/* Invite to reinvoke a persistent group */
3700int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3701 struct wpa_ssid *ssid, const u8 *go_dev_addr)
3702{
3703 enum p2p_invite_role role;
3704 u8 *bssid = NULL;
3705
3706 if (ssid->mode == WPAS_MODE_P2P_GO) {
3707 role = P2P_INVITE_ROLE_GO;
3708 if (peer_addr == NULL) {
3709 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3710 "address in invitation command");
3711 return -1;
3712 }
3713 if (wpas_p2p_create_iface(wpa_s)) {
3714 if (wpas_p2p_add_group_interface(wpa_s,
3715 WPA_IF_P2P_GO) < 0) {
3716 wpa_printf(MSG_ERROR, "P2P: Failed to "
3717 "allocate a new interface for the "
3718 "group");
3719 return -1;
3720 }
3721 bssid = wpa_s->pending_interface_addr;
3722 } else
3723 bssid = wpa_s->own_addr;
3724 } else {
3725 role = P2P_INVITE_ROLE_CLIENT;
3726 peer_addr = ssid->bssid;
3727 }
3728 wpa_s->pending_invite_ssid_id = ssid->id;
3729
3730 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3731 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3732 ssid->ssid, ssid->ssid_len,
3733 go_dev_addr, 1);
3734
3735 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3736 return -1;
3737
3738 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3739 ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3740}
3741
3742
3743/* Invite to join an active group */
3744int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3745 const u8 *peer_addr, const u8 *go_dev_addr)
3746{
3747 struct wpa_global *global = wpa_s->global;
3748 enum p2p_invite_role role;
3749 u8 *bssid = NULL;
3750 struct wpa_ssid *ssid;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003751 int persistent;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003752
3753 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3754 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3755 break;
3756 }
3757 if (wpa_s == NULL) {
3758 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3759 return -1;
3760 }
3761
3762 ssid = wpa_s->current_ssid;
3763 if (ssid == NULL) {
3764 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3765 "invitation");
3766 return -1;
3767 }
3768
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003769 persistent = ssid->p2p_persistent_group &&
3770 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
3771 ssid->ssid, ssid->ssid_len);
3772
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003773 if (ssid->mode == WPAS_MODE_P2P_GO) {
3774 role = P2P_INVITE_ROLE_ACTIVE_GO;
3775 bssid = wpa_s->own_addr;
3776 if (go_dev_addr == NULL)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003777 go_dev_addr = wpa_s->global->p2p_dev_addr;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003778 } else {
3779 role = P2P_INVITE_ROLE_CLIENT;
3780 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3781 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3782 "invite to current group");
3783 return -1;
3784 }
3785 bssid = wpa_s->bssid;
3786 if (go_dev_addr == NULL &&
3787 !is_zero_ether_addr(wpa_s->go_dev_addr))
3788 go_dev_addr = wpa_s->go_dev_addr;
3789 }
3790 wpa_s->parent->pending_invite_ssid_id = -1;
3791
3792 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3793 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
3794 ssid->ssid, ssid->ssid_len,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003795 go_dev_addr, persistent);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003796
3797 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3798 return -1;
3799
3800 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3801 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003802 go_dev_addr, persistent);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003803}
3804
3805
3806void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3807{
3808 struct wpa_ssid *ssid = wpa_s->current_ssid;
3809 const char *ssid_txt;
3810 u8 go_dev_addr[ETH_ALEN];
Jouni Malinen75ecf522011-06-27 15:19:46 -07003811 int network_id = -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003812 int persistent;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003813 int freq;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003814
3815 if (!wpa_s->show_group_started || !ssid)
3816 return;
3817
3818 wpa_s->show_group_started = 0;
3819
3820 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3821 os_memset(go_dev_addr, 0, ETH_ALEN);
3822 if (ssid->bssid_set)
3823 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3824 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3825 ssid->ssid_len);
3826 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3827
3828 if (wpa_s->global->p2p_group_formation == wpa_s)
3829 wpa_s->global->p2p_group_formation = NULL;
3830
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003831 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
3832 (int) wpa_s->assoc_freq;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003833 if (ssid->passphrase == NULL && ssid->psk_set) {
3834 char psk[65];
3835 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3836 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3837 "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
3838 MACSTR "%s",
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003839 wpa_s->ifname, ssid_txt, freq, psk,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003840 MAC2STR(go_dev_addr),
3841 persistent ? " [PERSISTENT]" : "");
3842 } else {
3843 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3844 "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
3845 "go_dev_addr=" MACSTR "%s",
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003846 wpa_s->ifname, ssid_txt, freq,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003847 ssid->passphrase ? ssid->passphrase : "",
3848 MAC2STR(go_dev_addr),
3849 persistent ? " [PERSISTENT]" : "");
3850 }
3851
3852 if (persistent)
Jouni Malinen75ecf522011-06-27 15:19:46 -07003853 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
3854 ssid, go_dev_addr);
3855 if (network_id < 0)
3856 network_id = ssid->id;
3857 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003858}
3859
3860
3861int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3862 u32 interval1, u32 duration2, u32 interval2)
3863{
3864 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3865 return -1;
3866 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3867 return -1;
3868
3869 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3870 wpa_s->current_ssid == NULL ||
3871 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3872 return -1;
3873
3874 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3875 wpa_s->own_addr, wpa_s->assoc_freq,
3876 duration1, interval1, duration2, interval2);
3877}
3878
3879
3880int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3881 unsigned int interval)
3882{
3883 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3884 return -1;
3885
3886 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3887 return -1;
3888
3889 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3890}
3891
3892
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003893static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
3894{
3895 return wpa_s->current_ssid != NULL &&
3896 wpa_s->current_ssid->p2p_group &&
3897 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
3898}
3899
3900
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003901static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
3902{
3903 struct wpa_supplicant *wpa_s = eloop_ctx;
3904
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003905 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003906 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
3907 "disabled");
3908 return;
3909 }
3910
3911 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
3912 "group");
3913 wpa_s->removal_reason = P2P_GROUP_REMOVAL_IDLE_TIMEOUT;
3914 wpas_p2p_group_delete(wpa_s);
3915}
3916
3917
3918static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
3919{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003920 unsigned int timeout;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003921
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003922 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003923 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3924 return;
3925
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003926 timeout = wpa_s->conf->p2p_group_idle;
3927 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3928 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
3929 timeout = P2P_MAX_CLIENT_IDLE;
3930
3931 if (timeout == 0)
3932 return;
3933
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003934 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003935 timeout);
3936 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
3937 wpa_s, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003938}
3939
3940
3941void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3942 u16 reason_code, const u8 *ie, size_t ie_len)
3943{
3944 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3945 return;
3946 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3947 return;
3948
3949 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3950}
3951
3952
3953void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3954 u16 reason_code, const u8 *ie, size_t ie_len)
3955{
3956 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3957 return;
3958 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3959 return;
3960
3961 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3962}
3963
3964
3965void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
3966{
3967 struct p2p_data *p2p = wpa_s->global->p2p;
3968
3969 if (p2p == NULL)
3970 return;
3971
3972 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3973 return;
3974
3975 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
3976 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
3977
3978 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
3979 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
3980
3981 if (wpa_s->wps &&
3982 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
3983 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
3984
3985 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
3986 p2p_set_uuid(p2p, wpa_s->wps->uuid);
3987
3988 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
3989 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
3990 p2p_set_model_name(p2p, wpa_s->conf->model_name);
3991 p2p_set_model_number(p2p, wpa_s->conf->model_number);
3992 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
3993 }
3994
3995 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
3996 p2p_set_sec_dev_types(p2p,
3997 (void *) wpa_s->conf->sec_device_type,
3998 wpa_s->conf->num_sec_device_types);
3999
4000 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
4001 int i;
4002 p2p_remove_wps_vendor_extensions(p2p);
4003 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4004 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4005 continue;
4006 p2p_add_wps_vendor_extension(
4007 p2p, wpa_s->conf->wps_vendor_ext[i]);
4008 }
4009 }
4010
4011 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
4012 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4013 char country[3];
4014 country[0] = wpa_s->conf->country[0];
4015 country[1] = wpa_s->conf->country[1];
4016 country[2] = 0x04;
4017 p2p_set_country(p2p, country);
4018 }
4019
4020 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
4021 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
4022 wpa_s->conf->p2p_ssid_postfix ?
4023 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
4024 0);
4025 }
4026
4027 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
4028 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
Jouni Malinen75ecf522011-06-27 15:19:46 -07004029
4030 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
4031 u8 reg_class, channel;
4032 int ret;
4033 unsigned int r;
4034 if (wpa_s->conf->p2p_listen_reg_class &&
4035 wpa_s->conf->p2p_listen_channel) {
4036 reg_class = wpa_s->conf->p2p_listen_reg_class;
4037 channel = wpa_s->conf->p2p_listen_channel;
4038 } else {
4039 reg_class = 81;
4040 /*
4041 * Pick one of the social channels randomly as the
4042 * listen channel.
4043 */
4044 os_get_random((u8 *) &r, sizeof(r));
4045 channel = 1 + (r % 3) * 5;
4046 }
4047 ret = p2p_set_listen_channel(p2p, reg_class, channel);
4048 if (ret)
4049 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
4050 "failed: %d", ret);
4051 }
4052 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
4053 u8 op_reg_class, op_channel, cfg_op_channel;
4054 int ret = 0;
4055 unsigned int r;
4056 if (wpa_s->conf->p2p_oper_reg_class &&
4057 wpa_s->conf->p2p_oper_channel) {
4058 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4059 op_channel = wpa_s->conf->p2p_oper_channel;
4060 cfg_op_channel = 1;
4061 } else {
4062 op_reg_class = 81;
4063 /*
4064 * Use random operation channel from (1, 6, 11)
4065 *if no other preference is indicated.
4066 */
4067 os_get_random((u8 *) &r, sizeof(r));
4068 op_channel = 1 + (r % 3) * 5;
4069 cfg_op_channel = 0;
4070 }
4071 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
4072 cfg_op_channel);
4073 if (ret)
4074 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
4075 "failed: %d", ret);
4076 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004077}
4078
4079
4080int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
4081 int duration)
4082{
4083 if (!wpa_s->ap_iface)
4084 return -1;
4085 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
4086 duration);
4087}
4088
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004089
4090int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
4091{
4092 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4093 return -1;
4094 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4095 return -1;
4096
4097 wpa_s->global->cross_connection = enabled;
4098 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
4099
4100 if (!enabled) {
4101 struct wpa_supplicant *iface;
4102
4103 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
4104 {
4105 if (iface->cross_connect_enabled == 0)
4106 continue;
4107
4108 iface->cross_connect_enabled = 0;
4109 iface->cross_connect_in_use = 0;
4110 wpa_msg(iface->parent, MSG_INFO,
4111 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4112 iface->ifname, iface->cross_connect_uplink);
4113 }
4114 }
4115
4116 return 0;
4117}
4118
4119
4120static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
4121{
4122 struct wpa_supplicant *iface;
4123
4124 if (!uplink->global->cross_connection)
4125 return;
4126
4127 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4128 if (!iface->cross_connect_enabled)
4129 continue;
4130 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4131 0)
4132 continue;
4133 if (iface->ap_iface == NULL)
4134 continue;
4135 if (iface->cross_connect_in_use)
4136 continue;
4137
4138 iface->cross_connect_in_use = 1;
4139 wpa_msg(iface->parent, MSG_INFO,
4140 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4141 iface->ifname, iface->cross_connect_uplink);
4142 }
4143}
4144
4145
4146static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
4147{
4148 struct wpa_supplicant *iface;
4149
4150 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4151 if (!iface->cross_connect_enabled)
4152 continue;
4153 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4154 0)
4155 continue;
4156 if (!iface->cross_connect_in_use)
4157 continue;
4158
4159 wpa_msg(iface->parent, MSG_INFO,
4160 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4161 iface->ifname, iface->cross_connect_uplink);
4162 iface->cross_connect_in_use = 0;
4163 }
4164}
4165
4166
4167void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4168{
4169 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
4170 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
4171 wpa_s->cross_connect_disallowed)
4172 wpas_p2p_disable_cross_connect(wpa_s);
4173 else
4174 wpas_p2p_enable_cross_connect(wpa_s);
4175 if (!wpa_s->ap_iface)
4176 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4177}
4178
4179
4180void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
4181{
4182 wpas_p2p_disable_cross_connect(wpa_s);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004183 if (!wpa_s->ap_iface &&
4184 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
4185 wpa_s, NULL))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004186 wpas_p2p_set_group_idle_timeout(wpa_s);
4187}
4188
4189
4190static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
4191{
4192 struct wpa_supplicant *iface;
4193
4194 if (!wpa_s->global->cross_connection)
4195 return;
4196
4197 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
4198 if (iface == wpa_s)
4199 continue;
4200 if (iface->drv_flags &
4201 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
4202 continue;
4203 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
4204 continue;
4205
4206 wpa_s->cross_connect_enabled = 1;
4207 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
4208 sizeof(wpa_s->cross_connect_uplink));
4209 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
4210 "%s to %s whenever uplink is available",
4211 wpa_s->ifname, wpa_s->cross_connect_uplink);
4212
4213 if (iface->ap_iface || iface->current_ssid == NULL ||
4214 iface->current_ssid->mode != WPAS_MODE_INFRA ||
4215 iface->cross_connect_disallowed ||
4216 iface->wpa_state != WPA_COMPLETED)
4217 break;
4218
4219 wpa_s->cross_connect_in_use = 1;
4220 wpa_msg(wpa_s->parent, MSG_INFO,
4221 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4222 wpa_s->ifname, wpa_s->cross_connect_uplink);
4223 break;
4224 }
4225}
4226
4227
4228int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
4229{
4230 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
4231 !wpa_s->p2p_in_provisioning)
4232 return 0; /* not P2P client operation */
4233
4234 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
4235 "session overlap");
4236 if (wpa_s != wpa_s->parent)
4237 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
4238
4239 if (wpa_s->global->p2p)
4240 p2p_group_formation_failed(wpa_s->global->p2p);
4241
4242 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4243 wpa_s->parent, NULL);
4244
4245 wpas_group_formation_completed(wpa_s, 0);
4246 return 1;
4247}
4248
4249
4250void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
4251{
4252 struct p2p_channels chan;
4253
4254 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
4255 return;
4256
4257 os_memset(&chan, 0, sizeof(chan));
4258 if (wpas_p2p_setup_channels(wpa_s, &chan)) {
4259 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
4260 "channel list");
4261 return;
4262 }
4263
4264 p2p_update_channel_list(wpa_s->global->p2p, &chan);
4265}
4266
4267
4268int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
4269{
4270 struct wpa_global *global = wpa_s->global;
4271 int found = 0;
4272 const u8 *peer;
4273
4274 if (global->p2p == NULL)
4275 return -1;
4276
4277 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
4278
4279 if (wpa_s->pending_interface_name[0] &&
4280 !is_zero_ether_addr(wpa_s->pending_interface_addr))
4281 found = 1;
4282
4283 peer = p2p_get_go_neg_peer(global->p2p);
4284 if (peer) {
4285 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
4286 MACSTR, MAC2STR(peer));
4287 p2p_unauthorize(global->p2p, peer);
4288 }
4289
4290 wpas_p2p_stop_find(wpa_s);
4291
4292 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4293 if (wpa_s == global->p2p_group_formation &&
4294 (wpa_s->p2p_in_provisioning ||
4295 wpa_s->parent->pending_interface_type ==
4296 WPA_IF_P2P_CLIENT)) {
4297 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
4298 "formation found - cancelling",
4299 wpa_s->ifname);
4300 found = 1;
4301 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4302 wpa_s->parent, NULL);
4303 wpas_p2p_group_delete(wpa_s);
4304 break;
4305 }
4306 }
4307
4308 if (!found) {
4309 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
4310 return -1;
4311 }
4312
4313 return 0;
4314}
4315
4316
4317void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
4318{
4319 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4320 return;
4321
4322 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
4323 "being available anymore");
4324 wpa_s->removal_reason = P2P_GROUP_REMOVAL_UNAVAILABLE;
4325 wpas_p2p_group_delete(wpa_s);
4326}
4327
4328
4329void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
4330 int freq_24, int freq_5, int freq_overall)
4331{
4332 struct p2p_data *p2p = wpa_s->global->p2p;
4333 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4334 return;
4335 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
4336}
4337
4338
4339int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
4340{
4341 u8 peer[ETH_ALEN];
4342 struct p2p_data *p2p = wpa_s->global->p2p;
4343
4344 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
4345 return -1;
4346
4347 if (hwaddr_aton(addr, peer))
4348 return -1;
4349
4350 return p2p_unauthorize(p2p, peer);
4351}
4352
4353
4354/**
4355 * wpas_p2p_disconnect - Disconnect from a P2P Group
4356 * @wpa_s: Pointer to wpa_supplicant data
4357 * Returns: 0 on success, -1 on failure
4358 *
4359 * This can be used to disconnect from a group in which the local end is a P2P
4360 * Client or to end a P2P Group in case the local end is the Group Owner. If a
4361 * virtual network interface was created for this group, that interface will be
4362 * removed. Otherwise, only the configured P2P group network will be removed
4363 * from the interface.
4364 */
4365int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
4366{
4367
4368 if (wpa_s == NULL)
4369 return -1;
4370
4371 wpa_s->removal_reason = P2P_GROUP_REMOVAL_REQUESTED;
4372 wpas_p2p_group_delete(wpa_s);
4373
4374 return 0;
4375}
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004376
4377
4378int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
4379{
4380 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4381 return 0;
4382
4383 return p2p_in_progress(wpa_s->global->p2p);
4384}
4385
4386
4387void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
4388 struct wpa_ssid *ssid)
4389
4390{
4391 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
4392 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4393 wpa_s->parent, NULL) > 0) {
4394 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
4395 "P2P group network getting removed");
4396 wpas_p2p_group_formation_timeout(wpa_s->parent, NULL);
4397 }
4398}
4399
4400
4401struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004402 const u8 *addr, const u8 *ssid,
4403 size_t ssid_len)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004404{
4405 struct wpa_ssid *s;
4406 size_t i;
4407
4408 for (s = wpa_s->conf->ssid; s; s = s->next) {
4409 if (s->disabled != 2)
4410 continue;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004411 if (ssid &&
4412 (ssid_len != s->ssid_len ||
4413 os_memcmp(ssid, s->ssid, ssid_len) != 0))
4414 continue;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004415 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
4416 return s; /* peer is GO in the persistent group */
4417 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
4418 continue;
4419 for (i = 0; i < s->num_p2p_clients; i++) {
4420 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
4421 addr, ETH_ALEN) == 0)
4422 return s; /* peer is P2P client in persistent
4423 * group */
4424 }
4425 }
4426
4427 return NULL;
4428}
4429
4430
4431void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
4432 const u8 *addr)
4433{
4434 if (addr == NULL)
4435 return;
4436 wpas_p2p_add_persistent_group_client(wpa_s, addr);
4437}
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004438
4439#ifdef ANDROID_P2P
4440int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq)
4441{
4442 struct wpa_supplicant *iface = NULL;
4443 struct p2p_data *p2p = wpa_s->global->p2p;
4444
4445 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
4446 if((iface->p2p_group_interface) && (iface->current_ssid) &&
4447 (iface->current_ssid->frequency != freq)) {
4448
4449 if (iface->p2p_group_interface == P2P_GROUP_INTERFACE_GO) {
4450 /* Try to see whether we can move the GO. If it
4451 * is not possible, remove the GO interface
4452 */
4453 if(wpa_drv_switch_channel(iface, freq) == 0) {
4454 wpa_printf(MSG_ERROR, "P2P: GO Moved to freq(%d)", freq);
4455 iface->current_ssid->frequency = freq;
4456 continue;
4457 }
4458 }
4459
4460 /* If GO cannot be moved or if the conflicting interface is a
4461 * P2P Client, remove the interface depending up on the connection
4462 * priority */
Dmitry Shmidt687922c2012-03-26 14:02:32 -07004463 if(!wpas_is_p2p_prioritized(wpa_s)) {
4464 /* STA connection has priority over existing
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004465 * P2P connection. So remove the interface */
Dmitry Shmidt687922c2012-03-26 14:02:32 -07004466 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to Single channel"
4467 "concurrent mode frequency conflict");
4468 iface->removal_reason = P2P_GROUP_REMOVAL_FREQ_CONFLICT;
4469 wpas_p2p_group_delete(iface);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004470 } else {
4471 /* Existing connection has the priority. Disable the newly
4472 * selected network and let the application know about it.
4473 */
4474 return -1;
4475 }
4476 }
4477 }
4478 return 0;
4479}
4480#endif