blob: 94efd72d48b6ecb61cc7b9fa8d1d70a830ab050b [file] [log] [blame]
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 Shmidt04949592012-07-19 12:16:46 -070042#define P2P_AUTO_PD_SCAN_ATTEMPTS 5
43
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080044#ifndef P2P_MAX_CLIENT_IDLE
45/*
46 * How many seconds to try to reconnect to the GO when connection in P2P client
47 * role has been lost.
48 */
Dmitry Shmidt98f9e762012-05-30 11:18:46 -070049#ifdef ANDROID_P2P
50#define P2P_MAX_CLIENT_IDLE 20
51#else
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080052#define P2P_MAX_CLIENT_IDLE 10
Dmitry Shmidt98f9e762012-05-30 11:18:46 -070053#endif /* ANDROID_P2P */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080054#endif /* P2P_MAX_CLIENT_IDLE */
55
Dmitry Shmidt04949592012-07-19 12:16:46 -070056#ifndef P2P_MAX_INITIAL_CONN_WAIT
57/*
58 * How many seconds to wait for initial 4-way handshake to get completed after
59 * WPS provisioning step.
60 */
61#define P2P_MAX_INITIAL_CONN_WAIT 10
62#endif /* P2P_MAX_INITIAL_CONN_WAIT */
63
Dmitry Shmidt61d9df32012-08-29 16:22:06 -070064#ifndef P2P_CONCURRENT_SEARCH_DELAY
65#ifdef ANDROID_P2P
66#define P2P_CONCURRENT_SEARCH_DELAY 0
67#else
68#define P2P_CONCURRENT_SEARCH_DELAY 500
69#endif
70#endif /* P2P_CONCURRENT_SEARCH_DELAY */
71
72enum p2p_group_removal_reason {
73 P2P_GROUP_REMOVAL_UNKNOWN,
74 P2P_GROUP_REMOVAL_SILENT,
75 P2P_GROUP_REMOVAL_FORMATION_FAILED,
76 P2P_GROUP_REMOVAL_REQUESTED,
77 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
78 P2P_GROUP_REMOVAL_UNAVAILABLE,
79 P2P_GROUP_REMOVAL_GO_ENDING_SESSION,
80#ifdef ANDROID_P2P
81 P2P_GROUP_REMOVAL_FREQ_CONFLICT
82#endif
83};
84
Dmitry Shmidt98f9e762012-05-30 11:18:46 -070085#ifdef ANDROID_P2P
86static int wpas_global_scan_in_progress(struct wpa_supplicant *wpa_s);
87#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070088static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
89static struct wpa_supplicant *
90wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
91 int go);
92static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
Dmitry Shmidt04949592012-07-19 12:16:46 -070093static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070094static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
95static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -070096 const u8 *dev_addr, enum p2p_wps_method wps_method,
97 int auto_join);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -080098static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx,
99 void *timeout_ctx);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700100static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
101static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
102static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
103static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700104static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
105 int group_added);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700106
Dmitry Shmidt2fb777c2012-05-02 12:29:53 -0700107#ifdef ANDROID_P2P
108static int wpas_global_scan_in_progress(struct wpa_supplicant *wpa_s)
109{
110 struct wpa_supplicant *iface = NULL;
111
112 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
113 if(iface->scanning || iface->wpa_state == WPA_SCANNING) {
114 wpa_printf(MSG_DEBUG, "P2P: Scan in progress on %s,"
115 "defer P2P SEARCH", iface->ifname);
116 return 1;
117 }
118 }
119
120 return 0;
121}
122#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700123
124static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
125 struct wpa_scan_results *scan_res)
126{
127 size_t i;
128
129 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
130 return;
131
132 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
133 (int) scan_res->num);
134
135 for (i = 0; i < scan_res->num; i++) {
136 struct wpa_scan_res *bss = scan_res->res[i];
137 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
138 bss->freq, bss->level,
139 (const u8 *) (bss + 1),
140 bss->ie_len) > 0)
141 break;
142 }
143
144 p2p_scan_res_handled(wpa_s->global->p2p);
145}
146
147
148static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
149 unsigned int num_req_dev_types,
Dmitry Shmidt04949592012-07-19 12:16:46 -0700150 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700151{
152 struct wpa_supplicant *wpa_s = ctx;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700153 struct wpa_supplicant *ifs;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700154 struct wpa_driver_scan_params params;
155 int ret;
156 struct wpabuf *wps_ie, *ies;
157 int social_channels[] = { 2412, 2437, 2462, 0, 0 };
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800158 size_t ielen;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700159
160 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
161 return -1;
162
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700163 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
164 if (ifs->sta_scan_pending &&
165 wpas_p2p_in_progress(wpa_s) == 2) {
166 wpa_printf(MSG_DEBUG, "Delaying P2P scan to allow "
167 "pending station mode scan to be "
168 "completed on interface %s", ifs->ifname);
169 wpa_s->p2p_cb_on_scan_complete = 1;
170 wpa_supplicant_req_scan(ifs, 0, 0);
171 return 1;
172 }
173 }
174
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700175 os_memset(&params, 0, sizeof(params));
176
177 /* P2P Wildcard SSID */
178 params.num_ssids = 1;
179 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
180 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
181
182 wpa_s->wps->dev.p2p = 1;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700183 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
184 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700185 num_req_dev_types, req_dev_types);
186 if (wps_ie == NULL)
187 return -1;
188
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800189 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
190 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700191 if (ies == NULL) {
192 wpabuf_free(wps_ie);
193 return -1;
194 }
195 wpabuf_put_buf(ies, wps_ie);
196 wpabuf_free(wps_ie);
197
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800198 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700199
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800200 params.p2p_probe = 1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700201 params.extra_ies = wpabuf_head(ies);
202 params.extra_ies_len = wpabuf_len(ies);
203
204 switch (type) {
205 case P2P_SCAN_SOCIAL:
206 params.freqs = social_channels;
207 break;
208 case P2P_SCAN_FULL:
209 break;
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -0700210 case P2P_SCAN_SPECIFIC:
211 social_channels[0] = freq;
212 social_channels[1] = 0;
213 params.freqs = social_channels;
214 break;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700215 case P2P_SCAN_SOCIAL_PLUS_ONE:
216 social_channels[3] = freq;
217 params.freqs = social_channels;
218 break;
219 }
220
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800221 ret = wpa_drv_scan(wpa_s, &params);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700222
223 wpabuf_free(ies);
224
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800225 if (ret) {
Dmitry Shmidt04949592012-07-19 12:16:46 -0700226 if (wpa_s->scanning ||
227 wpa_s->scan_res_handler == wpas_p2p_scan_res_handler) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800228 wpa_s->p2p_cb_on_scan_complete = 1;
229 ret = 1;
230 }
Dmitry Shmidt04949592012-07-19 12:16:46 -0700231 } else
232 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800233
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700234 return ret;
235}
236
237
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700238static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
239{
240 switch (p2p_group_interface) {
241 case P2P_GROUP_INTERFACE_PENDING:
242 return WPA_IF_P2P_GROUP;
243 case P2P_GROUP_INTERFACE_GO:
244 return WPA_IF_P2P_GO;
245 case P2P_GROUP_INTERFACE_CLIENT:
246 return WPA_IF_P2P_CLIENT;
247 }
248
249 return WPA_IF_P2P_GROUP;
250}
251
252
253static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
254 const u8 *ssid,
255 size_t ssid_len, int *go)
256{
257 struct wpa_ssid *s;
258
259 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
260 for (s = wpa_s->conf->ssid; s; s = s->next) {
261 if (s->disabled != 0 || !s->p2p_group ||
262 s->ssid_len != ssid_len ||
263 os_memcmp(ssid, s->ssid, ssid_len) != 0)
264 continue;
265 if (s->mode == WPAS_MODE_P2P_GO &&
266 s != wpa_s->current_ssid)
267 continue;
268 if (go)
269 *go = s->mode == WPAS_MODE_P2P_GO;
270 return wpa_s;
271 }
272 }
273
274 return NULL;
275}
276
277
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700278static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
279 enum p2p_group_removal_reason removal_reason)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700280{
281 struct wpa_ssid *ssid;
282 char *gtype;
283 const char *reason;
284
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700285 ssid = wpa_s->current_ssid;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700286#ifdef ANDROID_P2P
287 if ((ssid == NULL) && (wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
288#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700289 if (ssid == NULL) {
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700290#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700291 /*
292 * The current SSID was not known, but there may still be a
293 * pending P2P group interface waiting for provisioning.
294 */
295 ssid = wpa_s->conf->ssid;
296 while (ssid) {
297 if (ssid->p2p_group &&
298 (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
299 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
300 break;
301 ssid = ssid->next;
302 }
Jouni Malinen5c44edb2012-08-31 21:35:32 +0300303 if (ssid == NULL &&
304 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
305 {
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700306 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
307 "not found");
308 return -1;
309 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700310 }
311 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
312 gtype = "GO";
313 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
314 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
315 wpa_s->reassociate = 0;
316 wpa_s->disconnected = 1;
317 wpa_supplicant_deauthenticate(wpa_s,
318 WLAN_REASON_DEAUTH_LEAVING);
319 gtype = "client";
320 } else
321 gtype = "GO";
322 if (wpa_s->cross_connect_in_use) {
323 wpa_s->cross_connect_in_use = 0;
324 wpa_msg(wpa_s->parent, MSG_INFO,
325 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
326 wpa_s->ifname, wpa_s->cross_connect_uplink);
327 }
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700328 switch (removal_reason) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700329 case P2P_GROUP_REMOVAL_REQUESTED:
330 reason = " reason=REQUESTED";
331 break;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700332 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
333 reason = " reason=FORMATION_FAILED";
334 break;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700335 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
336 reason = " reason=IDLE";
337 break;
338 case P2P_GROUP_REMOVAL_UNAVAILABLE:
339 reason = " reason=UNAVAILABLE";
340 break;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700341 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
342 reason = " reason=GO_ENDING_SESSION";
343 break;
Dmitry Shmidt687922c2012-03-26 14:02:32 -0700344#ifdef ANDROID_P2P
345 case P2P_GROUP_REMOVAL_FREQ_CONFLICT:
346 reason = " reason=FREQ_CONFLICT";
347 break;
348#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700349 default:
350 reason = "";
351 break;
352 }
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700353 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
Dmitry Shmidt04949592012-07-19 12:16:46 -0700354 wpa_msg(wpa_s->parent, MSG_INFO,
355 P2P_EVENT_GROUP_REMOVED "%s %s%s",
356 wpa_s->ifname, gtype, reason);
357 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700358
Dmitry Shmidt04949592012-07-19 12:16:46 -0700359 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
360 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
361
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700362 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700363 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
364
365 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
366 struct wpa_global *global;
367 char *ifname;
368 enum wpa_driver_if_type type;
369 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
370 wpa_s->ifname);
371 global = wpa_s->global;
372 ifname = os_strdup(wpa_s->ifname);
373 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
Dmitry Shmidte15c7b52011-08-03 15:04:35 -0700374 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700375 wpa_s = global->ifaces;
376 if (wpa_s && ifname)
377 wpa_drv_if_remove(wpa_s, type, ifname);
378 os_free(ifname);
Jouni Malinen2b89da82012-08-31 22:04:41 +0300379 return 1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700380 }
381
382 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
383 if (ssid && (ssid->p2p_group ||
384 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
385 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
386 int id = ssid->id;
Jouni Malinen75ecf522011-06-27 15:19:46 -0700387 if (ssid == wpa_s->current_ssid) {
388 wpa_sm_set_config(wpa_s->wpa, NULL);
389 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700390 wpa_s->current_ssid = NULL;
Jouni Malinen75ecf522011-06-27 15:19:46 -0700391 }
392 /*
393 * Networks objects created during any P2P activities are not
394 * exposed out as they might/will confuse certain non-P2P aware
395 * applications since these network objects won't behave like
396 * regular ones.
397 *
398 * Likewise, we don't send out network removed signals for such
399 * network objects.
400 */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700401 wpa_config_remove_network(wpa_s->conf, id);
402 wpa_supplicant_clear_status(wpa_s);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800403 wpa_supplicant_cancel_sched_scan(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700404 } else {
405 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
406 "found");
407 }
Dmitry Shmidt04949592012-07-19 12:16:46 -0700408 if (wpa_s->ap_iface)
409 wpa_supplicant_ap_deinit(wpa_s);
410 else
411 wpa_drv_deinit_p2p_cli(wpa_s);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700412
413 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700414}
415
416
417static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
418 u8 *go_dev_addr,
419 const u8 *ssid, size_t ssid_len)
420{
421 struct wpa_bss *bss;
422 const u8 *bssid;
423 struct wpabuf *p2p;
424 u8 group_capab;
425 const u8 *addr;
426
427 if (wpa_s->go_params)
428 bssid = wpa_s->go_params->peer_interface_addr;
429 else
430 bssid = wpa_s->bssid;
431
432 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
433 if (bss == NULL) {
434 u8 iface_addr[ETH_ALEN];
435 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
436 iface_addr) == 0)
437 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
438 }
439 if (bss == NULL) {
440 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
441 "group is persistent - BSS " MACSTR " not found",
442 MAC2STR(bssid));
443 return 0;
444 }
445
446 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
447 if (p2p == NULL) {
448 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
449 "group is persistent - BSS " MACSTR
450 " did not include P2P IE", MAC2STR(bssid));
451 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
452 (u8 *) (bss + 1), bss->ie_len);
453 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
454 ((u8 *) bss + 1) + bss->ie_len,
455 bss->beacon_ie_len);
456 return 0;
457 }
458
459 group_capab = p2p_get_group_capab(p2p);
460 addr = p2p_get_go_dev_addr(p2p);
461 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
462 "group_capab=0x%x", group_capab);
463 if (addr) {
464 os_memcpy(go_dev_addr, addr, ETH_ALEN);
465 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
466 MAC2STR(addr));
467 } else
468 os_memset(go_dev_addr, 0, ETH_ALEN);
469 wpabuf_free(p2p);
470
471 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
472 "go_dev_addr=" MACSTR,
473 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
474
475 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
476}
477
478
Jouni Malinen75ecf522011-06-27 15:19:46 -0700479static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
480 struct wpa_ssid *ssid,
481 const u8 *go_dev_addr)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700482{
483 struct wpa_ssid *s;
484 int changed = 0;
485
486 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
487 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
488 for (s = wpa_s->conf->ssid; s; s = s->next) {
489 if (s->disabled == 2 &&
490 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
491 s->ssid_len == ssid->ssid_len &&
492 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
493 break;
494 }
495
496 if (s) {
497 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
498 "entry");
499 if (ssid->passphrase && !s->passphrase)
500 changed = 1;
501 else if (ssid->passphrase && s->passphrase &&
502 os_strcmp(ssid->passphrase, s->passphrase) != 0)
503 changed = 1;
504 } else {
505 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
506 "entry");
507 changed = 1;
508 s = wpa_config_add_network(wpa_s->conf);
509 if (s == NULL)
Jouni Malinen75ecf522011-06-27 15:19:46 -0700510 return -1;
511
512 /*
513 * Instead of network_added we emit persistent_group_added
514 * notification. Also to keep the defense checks in
515 * persistent_group obj registration method, we set the
516 * relevant flags in s to designate it as a persistent group.
517 */
518 s->p2p_group = 1;
519 s->p2p_persistent_group = 1;
520 wpas_notify_persistent_group_added(wpa_s, s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700521 wpa_config_set_network_defaults(s);
522 }
523
524 s->p2p_group = 1;
525 s->p2p_persistent_group = 1;
526 s->disabled = 2;
527 s->bssid_set = 1;
528 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
529 s->mode = ssid->mode;
530 s->auth_alg = WPA_AUTH_ALG_OPEN;
531 s->key_mgmt = WPA_KEY_MGMT_PSK;
532 s->proto = WPA_PROTO_RSN;
533 s->pairwise_cipher = WPA_CIPHER_CCMP;
534 s->export_keys = 1;
535 if (ssid->passphrase) {
536 os_free(s->passphrase);
537 s->passphrase = os_strdup(ssid->passphrase);
538 }
539 if (ssid->psk_set) {
540 s->psk_set = 1;
541 os_memcpy(s->psk, ssid->psk, 32);
542 }
543 if (s->passphrase && !s->psk_set)
544 wpa_config_update_psk(s);
545 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
546 os_free(s->ssid);
547 s->ssid = os_malloc(ssid->ssid_len);
548 }
549 if (s->ssid) {
550 s->ssid_len = ssid->ssid_len;
551 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
552 }
553
554#ifndef CONFIG_NO_CONFIG_WRITE
555 if (changed && wpa_s->conf->update_config &&
556 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
557 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
558 }
559#endif /* CONFIG_NO_CONFIG_WRITE */
Jouni Malinen75ecf522011-06-27 15:19:46 -0700560
561 return s->id;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700562}
563
564
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800565static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
566 const u8 *addr)
567{
568 struct wpa_ssid *ssid, *s;
569 u8 *n;
570 size_t i;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700571 int found = 0;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800572
573 ssid = wpa_s->current_ssid;
574 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
575 !ssid->p2p_persistent_group)
576 return;
577
578 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
579 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
580 continue;
581
582 if (s->ssid_len == ssid->ssid_len &&
583 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
584 break;
585 }
586
587 if (s == NULL)
588 return;
589
590 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
591 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700592 ETH_ALEN) != 0)
593 continue;
594
595 if (i == s->num_p2p_clients - 1)
596 return; /* already the most recent entry */
597
598 /* move the entry to mark it most recent */
599 os_memmove(s->p2p_client_list + i * ETH_ALEN,
600 s->p2p_client_list + (i + 1) * ETH_ALEN,
601 (s->num_p2p_clients - i - 1) * ETH_ALEN);
602 os_memcpy(s->p2p_client_list +
603 (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
604 found = 1;
605 break;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800606 }
607
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700608 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
609 n = os_realloc_array(s->p2p_client_list,
610 s->num_p2p_clients + 1, ETH_ALEN);
611 if (n == NULL)
612 return;
613 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
614 s->p2p_client_list = n;
615 s->num_p2p_clients++;
616 } else if (!found) {
617 /* Not enough room for an additional entry - drop the oldest
618 * entry */
619 os_memmove(s->p2p_client_list,
620 s->p2p_client_list + ETH_ALEN,
621 (s->num_p2p_clients - 1) * ETH_ALEN);
622 os_memcpy(s->p2p_client_list +
623 (s->num_p2p_clients - 1) * ETH_ALEN,
624 addr, ETH_ALEN);
625 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800626
627#ifndef CONFIG_NO_CONFIG_WRITE
628 if (wpa_s->parent->conf->update_config &&
629 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
630 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
631#endif /* CONFIG_NO_CONFIG_WRITE */
632}
633
634
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700635static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
636 int success)
637{
638 struct wpa_ssid *ssid;
639 const char *ssid_txt;
640 int client;
641 int persistent;
642 u8 go_dev_addr[ETH_ALEN];
Jouni Malinen75ecf522011-06-27 15:19:46 -0700643 int network_id = -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700644
645 /*
646 * This callback is likely called for the main interface. Update wpa_s
647 * to use the group interface if a new interface was created for the
648 * group.
649 */
650 if (wpa_s->global->p2p_group_formation)
651 wpa_s = wpa_s->global->p2p_group_formation;
652 wpa_s->global->p2p_group_formation = NULL;
653 wpa_s->p2p_in_provisioning = 0;
654
655 if (!success) {
656 wpa_msg(wpa_s->parent, MSG_INFO,
657 P2P_EVENT_GROUP_FORMATION_FAILURE);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700658 wpas_p2p_group_delete(wpa_s,
659 P2P_GROUP_REMOVAL_FORMATION_FAILED);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700660 return;
661 }
662
663 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
664
665 ssid = wpa_s->current_ssid;
666 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
667 ssid->mode = WPAS_MODE_P2P_GO;
668 p2p_group_notif_formation_done(wpa_s->p2p_group);
669 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
670 }
671
672 persistent = 0;
673 if (ssid) {
674 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
675 client = ssid->mode == WPAS_MODE_INFRA;
676 if (ssid->mode == WPAS_MODE_P2P_GO) {
677 persistent = ssid->p2p_persistent_group;
Dmitry Shmidt497c1d52011-07-21 15:19:46 -0700678 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
679 ETH_ALEN);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700680 } else
681 persistent = wpas_p2p_persistent_group(wpa_s,
682 go_dev_addr,
683 ssid->ssid,
684 ssid->ssid_len);
685 } else {
686 ssid_txt = "";
687 client = wpa_s->p2p_group_interface ==
688 P2P_GROUP_INTERFACE_CLIENT;
689 os_memset(go_dev_addr, 0, ETH_ALEN);
690 }
691
692 wpa_s->show_group_started = 0;
693 if (client) {
694 /*
695 * Indicate event only after successfully completed 4-way
696 * handshake, i.e., when the interface is ready for data
697 * packets.
698 */
699 wpa_s->show_group_started = 1;
Dmitry Shmidt4b86ea52012-09-04 11:06:50 -0700700#ifdef ANDROID_P2P
701 /* For client Second phase of Group formation (4-way handshake) can be still pending
702 * So we need to restore wpa_s->global->p2p_group_formation */
703 wpa_s->global->p2p_group_formation = wpa_s;
704#endif
705
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700706 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
707 char psk[65];
708 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
709 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
710 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
711 "%s",
712 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
713 MAC2STR(go_dev_addr),
714 persistent ? " [PERSISTENT]" : "");
715 wpas_p2p_cross_connect_setup(wpa_s);
716 wpas_p2p_set_group_idle_timeout(wpa_s);
717 } else {
718 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
719 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
720 "go_dev_addr=" MACSTR "%s",
721 wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
722 ssid && ssid->passphrase ? ssid->passphrase : "",
723 MAC2STR(go_dev_addr),
724 persistent ? " [PERSISTENT]" : "");
725 wpas_p2p_cross_connect_setup(wpa_s);
726 wpas_p2p_set_group_idle_timeout(wpa_s);
727 }
728
729 if (persistent)
Jouni Malinen75ecf522011-06-27 15:19:46 -0700730 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
731 ssid, go_dev_addr);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800732 if (network_id < 0 && ssid)
Jouni Malinen75ecf522011-06-27 15:19:46 -0700733 network_id = ssid->id;
734 if (!client)
735 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700736}
737
738
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800739static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
740 unsigned int freq,
741 const u8 *dst, const u8 *src,
742 const u8 *bssid,
743 const u8 *data, size_t data_len,
744 enum offchannel_send_action_result
745 result)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700746{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800747 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700748
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700749 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
750 return;
751 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
752 return;
753
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800754 switch (result) {
755 case OFFCHANNEL_SEND_ACTION_SUCCESS:
756 res = P2P_SEND_ACTION_SUCCESS;
757 break;
758 case OFFCHANNEL_SEND_ACTION_NO_ACK:
759 res = P2P_SEND_ACTION_NO_ACK;
760 break;
761 case OFFCHANNEL_SEND_ACTION_FAILED:
762 res = P2P_SEND_ACTION_FAILED;
763 break;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700764 }
765
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800766 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700767
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800768 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
769 wpa_s->pending_pd_before_join &&
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800770 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
771 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700772 wpa_s->pending_pd_before_join = 0;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700773 if (wpa_s->p2p_fallback_to_go_neg) {
774 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
775 "during p2p_connect-auto");
776 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
777 return;
778 }
779
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700780 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800781 "join-existing-group operation (no ACK for PD "
782 "Req)");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700783 wpas_p2p_join_start(wpa_s);
784 }
785}
786
787
788static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
789 const u8 *src, const u8 *bssid, const u8 *buf,
790 size_t len, unsigned int wait_time)
791{
792 struct wpa_supplicant *wpa_s = ctx;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800793 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
794 wait_time,
795 wpas_p2p_send_action_tx_status, 1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700796}
797
798
799static void wpas_send_action_done(void *ctx)
800{
801 struct wpa_supplicant *wpa_s = ctx;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800802 offchannel_send_action_done(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700803}
804
805
806static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
807 struct p2p_go_neg_results *params)
808{
809 if (wpa_s->go_params == NULL) {
810 wpa_s->go_params = os_malloc(sizeof(*params));
811 if (wpa_s->go_params == NULL)
812 return -1;
813 }
814 os_memcpy(wpa_s->go_params, params, sizeof(*params));
815 return 0;
816}
817
818
819static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
820 struct p2p_go_neg_results *res)
821{
822 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
823 MAC2STR(res->peer_interface_addr));
824 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
825 res->ssid, res->ssid_len);
826 wpa_supplicant_ap_deinit(wpa_s);
827 wpas_copy_go_neg_results(wpa_s, res);
828 if (res->wps_method == WPS_PBC)
829 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
830 else {
831 u16 dev_pw_id = DEV_PW_DEFAULT;
832 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
833 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
834 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
835 wpa_s->p2p_pin, 1, dev_pw_id);
836 }
837}
838
839
840static void p2p_go_configured(void *ctx, void *data)
841{
842 struct wpa_supplicant *wpa_s = ctx;
843 struct p2p_go_neg_results *params = data;
844 struct wpa_ssid *ssid;
Jouni Malinen75ecf522011-06-27 15:19:46 -0700845 int network_id = -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700846
847 ssid = wpa_s->current_ssid;
848 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
849 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
850 if (wpa_s->global->p2p_group_formation == wpa_s)
851 wpa_s->global->p2p_group_formation = NULL;
852 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
853 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
854 "go_dev_addr=" MACSTR "%s",
855 wpa_s->ifname,
856 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
857 ssid->frequency,
858 params->passphrase ? params->passphrase : "",
Dmitry Shmidt497c1d52011-07-21 15:19:46 -0700859 MAC2STR(wpa_s->global->p2p_dev_addr),
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700860 params->persistent_group ? " [PERSISTENT]" : "");
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800861
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700862 if (params->persistent_group)
Jouni Malinen75ecf522011-06-27 15:19:46 -0700863 network_id = wpas_p2p_store_persistent_group(
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700864 wpa_s->parent, ssid,
Dmitry Shmidt497c1d52011-07-21 15:19:46 -0700865 wpa_s->global->p2p_dev_addr);
Jouni Malinen75ecf522011-06-27 15:19:46 -0700866 if (network_id < 0)
867 network_id = ssid->id;
868 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700869 wpas_p2p_cross_connect_setup(wpa_s);
870 wpas_p2p_set_group_idle_timeout(wpa_s);
871 return;
872 }
873
874 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
875 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
876 params->peer_interface_addr)) {
877 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
878 "filtering");
879 return;
880 }
881 if (params->wps_method == WPS_PBC)
882 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800883 params->peer_device_addr);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700884 else if (wpa_s->p2p_pin[0])
885 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
886 wpa_s->p2p_pin, NULL, 0);
887 os_free(wpa_s->go_params);
888 wpa_s->go_params = NULL;
889}
890
891
892static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
893 struct p2p_go_neg_results *params,
894 int group_formation)
895{
896 struct wpa_ssid *ssid;
897
898 if (wpas_copy_go_neg_results(wpa_s, params) < 0)
899 return;
900
901 ssid = wpa_config_add_network(wpa_s->conf);
902 if (ssid == NULL)
903 return;
904
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800905 wpa_s->show_group_started = 0;
906
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700907 wpa_config_set_network_defaults(ssid);
908 ssid->temporary = 1;
909 ssid->p2p_group = 1;
910 ssid->p2p_persistent_group = params->persistent_group;
911 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
912 WPAS_MODE_P2P_GO;
913 ssid->frequency = params->freq;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700914 ssid->ht40 = params->ht40;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700915 ssid->ssid = os_zalloc(params->ssid_len + 1);
916 if (ssid->ssid) {
917 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
918 ssid->ssid_len = params->ssid_len;
919 }
920 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
921 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
922 ssid->proto = WPA_PROTO_RSN;
923 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
924 ssid->passphrase = os_strdup(params->passphrase);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700925 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700926
927 wpa_s->ap_configured_cb = p2p_go_configured;
928 wpa_s->ap_configured_cb_ctx = wpa_s;
929 wpa_s->ap_configured_cb_data = wpa_s->go_params;
Jouni Malinen75ecf522011-06-27 15:19:46 -0700930 wpa_s->connect_without_scan = ssid;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700931 wpa_s->reassociate = 1;
932 wpa_s->disconnected = 0;
933 wpa_supplicant_req_scan(wpa_s, 0, 0);
934}
935
936
937static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
938 const struct wpa_supplicant *src)
939{
940 struct wpa_config *d;
941 const struct wpa_config *s;
942
943 d = dst->conf;
944 s = src->conf;
945
946#define C(n) if (s->n) d->n = os_strdup(s->n)
947 C(device_name);
948 C(manufacturer);
949 C(model_name);
950 C(model_number);
951 C(serial_number);
952 C(config_methods);
953#undef C
954
955 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
956 os_memcpy(d->sec_device_type, s->sec_device_type,
957 sizeof(d->sec_device_type));
958 d->num_sec_device_types = s->num_sec_device_types;
959
960 d->p2p_group_idle = s->p2p_group_idle;
961 d->p2p_intra_bss = s->p2p_intra_bss;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800962 d->persistent_reconnect = s->persistent_reconnect;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700963 d->max_num_sta = s->max_num_sta;
964 d->pbc_in_m1 = s->pbc_in_m1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700965}
966
967
968static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
969 enum wpa_driver_if_type type)
970{
971 char ifname[120], force_ifname[120];
972
973 if (wpa_s->pending_interface_name[0]) {
974 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
975 "- skip creation of a new one");
976 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
977 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
978 "unknown?! ifname='%s'",
979 wpa_s->pending_interface_name);
980 return -1;
981 }
982 return 0;
983 }
984
985 os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
986 wpa_s->p2p_group_idx);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800987 if (os_strlen(ifname) >= IFNAMSIZ &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700988 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
989 /* Try to avoid going over the IFNAMSIZ length limit */
990 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
991 wpa_s->p2p_group_idx);
992 }
993 force_ifname[0] = '\0';
994
995 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
996 ifname);
997 wpa_s->p2p_group_idx++;
998
999 wpa_s->pending_interface_type = type;
1000 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
1001 wpa_s->pending_interface_addr, NULL) < 0) {
1002 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
1003 "interface");
1004 return -1;
1005 }
1006
1007 if (force_ifname[0]) {
1008 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
1009 force_ifname);
1010 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
1011 sizeof(wpa_s->pending_interface_name));
1012 } else
1013 os_strlcpy(wpa_s->pending_interface_name, ifname,
1014 sizeof(wpa_s->pending_interface_name));
1015 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1016 MACSTR, wpa_s->pending_interface_name,
1017 MAC2STR(wpa_s->pending_interface_addr));
1018
1019 return 0;
1020}
1021
1022
1023static void wpas_p2p_remove_pending_group_interface(
1024 struct wpa_supplicant *wpa_s)
1025{
1026 if (!wpa_s->pending_interface_name[0] ||
1027 is_zero_ether_addr(wpa_s->pending_interface_addr))
1028 return; /* No pending virtual interface */
1029
1030 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1031 wpa_s->pending_interface_name);
1032 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1033 wpa_s->pending_interface_name);
1034 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1035 wpa_s->pending_interface_name[0] = '\0';
1036}
1037
1038
1039static struct wpa_supplicant *
1040wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1041{
1042 struct wpa_interface iface;
1043 struct wpa_supplicant *group_wpa_s;
1044
1045 if (!wpa_s->pending_interface_name[0]) {
1046 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
1047 if (!wpas_p2p_create_iface(wpa_s))
1048 return NULL;
1049 /*
1050 * Something has forced us to remove the pending interface; try
1051 * to create a new one and hope for the best that we will get
1052 * the same local address.
1053 */
1054 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1055 WPA_IF_P2P_CLIENT) < 0)
1056 return NULL;
1057 }
1058
1059 os_memset(&iface, 0, sizeof(iface));
1060 iface.ifname = wpa_s->pending_interface_name;
1061 iface.driver = wpa_s->driver->name;
1062 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1063 iface.driver_param = wpa_s->conf->driver_param;
1064 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1065 if (group_wpa_s == NULL) {
1066 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1067 "wpa_supplicant interface");
1068 return NULL;
1069 }
1070 wpa_s->pending_interface_name[0] = '\0';
1071 group_wpa_s->parent = wpa_s;
1072 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1073 P2P_GROUP_INTERFACE_CLIENT;
1074 wpa_s->global->p2p_group_formation = group_wpa_s;
1075
1076 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1077
1078 return group_wpa_s;
1079}
1080
1081
1082static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1083 void *timeout_ctx)
1084{
1085 struct wpa_supplicant *wpa_s = eloop_ctx;
1086 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1087 if (wpa_s->global->p2p)
1088 p2p_group_formation_failed(wpa_s->global->p2p);
1089 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1090 wpa_drv_p2p_group_formation_failed(wpa_s);
1091 wpas_group_formation_completed(wpa_s, 0);
1092}
1093
1094
1095void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1096{
1097 struct wpa_supplicant *wpa_s = ctx;
1098
1099 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1100 wpa_drv_cancel_remain_on_channel(wpa_s);
1101 wpa_s->off_channel_freq = 0;
1102 wpa_s->roc_waiting_drv_freq = 0;
1103 }
1104
1105 if (res->status) {
1106 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
1107 res->status);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001108 wpas_notify_p2p_go_neg_completed(wpa_s, res);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001109 wpas_p2p_remove_pending_group_interface(wpa_s);
1110 return;
1111 }
1112
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001113 if (wpa_s->p2p_go_ht40)
1114 res->ht40 = 1;
1115
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001116 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001117 wpas_notify_p2p_go_neg_completed(wpa_s, res);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001118
Dmitry Shmidt04949592012-07-19 12:16:46 -07001119 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1120 struct wpa_ssid *ssid;
1121 ssid = wpa_config_get_network(wpa_s->conf,
1122 wpa_s->p2p_persistent_id);
1123 if (ssid && ssid->disabled == 2 &&
1124 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1125 size_t len = os_strlen(ssid->passphrase);
1126 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1127 "on requested persistent group");
1128 os_memcpy(res->passphrase, ssid->passphrase, len);
1129 res->passphrase[len] = '\0';
1130 }
1131 }
1132
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001133 if (wpa_s->create_p2p_iface) {
1134 struct wpa_supplicant *group_wpa_s =
1135 wpas_p2p_init_group_interface(wpa_s, res->role_go);
1136 if (group_wpa_s == NULL) {
1137 wpas_p2p_remove_pending_group_interface(wpa_s);
1138 return;
1139 }
1140 if (group_wpa_s != wpa_s) {
1141 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1142 sizeof(group_wpa_s->p2p_pin));
1143 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1144 }
1145 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1146 wpa_s->pending_interface_name[0] = '\0';
1147 group_wpa_s->p2p_in_provisioning = 1;
1148
1149 if (res->role_go)
1150 wpas_start_wps_go(group_wpa_s, res, 1);
1151 else
1152 wpas_start_wps_enrollee(group_wpa_s, res);
1153 } else {
1154 wpa_s->p2p_in_provisioning = 1;
1155 wpa_s->global->p2p_group_formation = wpa_s;
1156
1157 if (res->role_go)
1158 wpas_start_wps_go(wpa_s, res, 1);
1159 else
1160 wpas_start_wps_enrollee(ctx, res);
1161 }
1162
1163 wpa_s->p2p_long_listen = 0;
1164 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1165
1166 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
1167 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1168 (res->peer_config_timeout % 100) * 10000,
1169 wpas_p2p_group_formation_timeout, wpa_s, NULL);
1170}
1171
1172
1173void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
1174{
1175 struct wpa_supplicant *wpa_s = ctx;
1176 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1177 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
1178
1179 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
1180}
1181
1182
1183void wpas_dev_found(void *ctx, const u8 *addr,
1184 const struct p2p_peer_info *info,
1185 int new_device)
1186{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001187#ifndef CONFIG_NO_STDOUT_DEBUG
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001188 struct wpa_supplicant *wpa_s = ctx;
1189 char devtype[WPS_DEV_TYPE_BUFSIZE];
Irfan Sheriff8367dc92012-09-09 17:08:19 -07001190#define WFD_DEV_INFO_SIZE 9
1191 char wfd_dev_info_hex[2 * WFD_DEV_INFO_SIZE + 1];
Irfan Sheriff8d965182012-09-11 08:58:24 -07001192 os_memset(wfd_dev_info_hex, 0, sizeof(wfd_dev_info_hex));
Irfan Sheriff8367dc92012-09-09 17:08:19 -07001193
1194#ifdef CONFIG_WIFI_DISPLAY
1195 if (info->wfd_subelems) {
1196 wpa_snprintf_hex(wfd_dev_info_hex, sizeof(wfd_dev_info_hex),
1197 wpabuf_head(info->wfd_subelems),
1198 WFD_DEV_INFO_SIZE);
1199 }
1200#endif /* CONFIG_WIFI_DISPLAY */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001201
1202 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1203 " p2p_dev_addr=" MACSTR
1204 " pri_dev_type=%s name='%s' config_methods=0x%x "
Irfan Sheriff8367dc92012-09-09 17:08:19 -07001205 "dev_capab=0x%x group_capab=0x%x%s%s",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001206 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1207 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1208 sizeof(devtype)),
1209 info->device_name, info->config_methods,
Irfan Sheriff8367dc92012-09-09 17:08:19 -07001210 info->dev_capab, info->group_capab,
1211 wfd_dev_info_hex[0] ? " wfd_dev_info=0x" : "", wfd_dev_info_hex);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001212#endif /* CONFIG_NO_STDOUT_DEBUG */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001213
1214 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
1215}
1216
1217
1218static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1219{
1220 struct wpa_supplicant *wpa_s = ctx;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001221
Dmitry Shmidt497c1d52011-07-21 15:19:46 -07001222 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1223 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001224
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001225 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1226}
1227
1228
1229static int wpas_start_listen(void *ctx, unsigned int freq,
1230 unsigned int duration,
1231 const struct wpabuf *probe_resp_ie)
1232{
1233 struct wpa_supplicant *wpa_s = ctx;
1234
1235 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
1236
1237 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1238 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1239 "report received Probe Request frames");
1240 return -1;
1241 }
1242
1243 wpa_s->pending_listen_freq = freq;
1244 wpa_s->pending_listen_duration = duration;
1245
1246 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1247 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1248 "to remain on channel (%u MHz) for Listen "
1249 "state", freq);
1250 wpa_s->pending_listen_freq = 0;
1251 return -1;
1252 }
1253 wpa_s->off_channel_freq = 0;
1254 wpa_s->roc_waiting_drv_freq = freq;
1255
1256 return 0;
1257}
1258
1259
1260static void wpas_stop_listen(void *ctx)
1261{
1262 struct wpa_supplicant *wpa_s = ctx;
1263 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
1264 wpa_drv_cancel_remain_on_channel(wpa_s);
1265 wpa_s->off_channel_freq = 0;
1266 wpa_s->roc_waiting_drv_freq = 0;
1267 }
1268 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
1269 wpa_drv_probe_req_report(wpa_s, 0);
1270}
1271
1272
1273static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1274{
1275 struct wpa_supplicant *wpa_s = ctx;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001276 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001277}
1278
1279
1280static struct p2p_srv_bonjour *
1281wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1282 const struct wpabuf *query)
1283{
1284 struct p2p_srv_bonjour *bsrv;
1285 size_t len;
1286
1287 len = wpabuf_len(query);
1288 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1289 struct p2p_srv_bonjour, list) {
1290 if (len == wpabuf_len(bsrv->query) &&
1291 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1292 len) == 0)
1293 return bsrv;
1294 }
1295 return NULL;
1296}
1297
1298
1299static struct p2p_srv_upnp *
1300wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1301 const char *service)
1302{
1303 struct p2p_srv_upnp *usrv;
1304
1305 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1306 struct p2p_srv_upnp, list) {
1307 if (version == usrv->version &&
1308 os_strcmp(service, usrv->service) == 0)
1309 return usrv;
1310 }
1311 return NULL;
1312}
1313
1314
1315static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1316 u8 srv_trans_id)
1317{
1318 u8 *len_pos;
1319
1320 if (wpabuf_tailroom(resp) < 5)
1321 return;
1322
1323 /* Length (to be filled) */
1324 len_pos = wpabuf_put(resp, 2);
1325 wpabuf_put_u8(resp, srv_proto);
1326 wpabuf_put_u8(resp, srv_trans_id);
1327 /* Status Code */
1328 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1329 /* Response Data: empty */
1330 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1331}
1332
1333
1334static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1335 struct wpabuf *resp, u8 srv_trans_id)
1336{
1337 struct p2p_srv_bonjour *bsrv;
1338 u8 *len_pos;
1339
1340 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1341
1342 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1343 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1344 return;
1345 }
1346
1347 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1348 struct p2p_srv_bonjour, list) {
1349 if (wpabuf_tailroom(resp) <
1350 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1351 return;
1352 /* Length (to be filled) */
1353 len_pos = wpabuf_put(resp, 2);
1354 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1355 wpabuf_put_u8(resp, srv_trans_id);
1356 /* Status Code */
1357 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1358 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1359 wpabuf_head(bsrv->resp),
1360 wpabuf_len(bsrv->resp));
1361 /* Response Data */
1362 wpabuf_put_buf(resp, bsrv->query); /* Key */
1363 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1364 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1365 2);
1366 }
1367}
1368
1369
1370static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1371 struct wpabuf *resp, u8 srv_trans_id,
1372 const u8 *query, size_t query_len)
1373{
1374 struct p2p_srv_bonjour *bsrv;
1375 struct wpabuf buf;
1376 u8 *len_pos;
1377
1378 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1379 query, query_len);
1380 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1381 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1382 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1383 srv_trans_id);
1384 return;
1385 }
1386
1387 if (query_len == 0) {
1388 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1389 return;
1390 }
1391
1392 if (wpabuf_tailroom(resp) < 5)
1393 return;
1394 /* Length (to be filled) */
1395 len_pos = wpabuf_put(resp, 2);
1396 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1397 wpabuf_put_u8(resp, srv_trans_id);
1398
1399 wpabuf_set(&buf, query, query_len);
1400 bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1401 if (bsrv == NULL) {
1402 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1403 "available");
1404
1405 /* Status Code */
1406 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1407 /* Response Data: empty */
1408 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1409 2);
1410 return;
1411 }
1412
1413 /* Status Code */
1414 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1415 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1416 wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1417
1418 if (wpabuf_tailroom(resp) >=
1419 wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1420 /* Response Data */
1421 wpabuf_put_buf(resp, bsrv->query); /* Key */
1422 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1423 }
1424 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1425}
1426
1427
1428static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1429 struct wpabuf *resp, u8 srv_trans_id)
1430{
1431 struct p2p_srv_upnp *usrv;
1432 u8 *len_pos;
1433
1434 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1435
1436 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1437 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1438 return;
1439 }
1440
1441 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1442 struct p2p_srv_upnp, list) {
1443 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1444 return;
1445
1446 /* Length (to be filled) */
1447 len_pos = wpabuf_put(resp, 2);
1448 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1449 wpabuf_put_u8(resp, srv_trans_id);
1450
1451 /* Status Code */
1452 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1453 /* Response Data */
1454 wpabuf_put_u8(resp, usrv->version);
1455 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1456 usrv->service);
1457 wpabuf_put_str(resp, usrv->service);
1458 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1459 2);
1460 }
1461}
1462
1463
1464static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1465 struct wpabuf *resp, u8 srv_trans_id,
1466 const u8 *query, size_t query_len)
1467{
1468 struct p2p_srv_upnp *usrv;
1469 u8 *len_pos;
1470 u8 version;
1471 char *str;
1472 int count = 0;
1473
1474 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1475 query, query_len);
1476
1477 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1478 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1479 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1480 srv_trans_id);
1481 return;
1482 }
1483
1484 if (query_len == 0) {
1485 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1486 return;
1487 }
1488
1489 if (wpabuf_tailroom(resp) < 5)
1490 return;
1491
1492 /* Length (to be filled) */
1493 len_pos = wpabuf_put(resp, 2);
1494 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1495 wpabuf_put_u8(resp, srv_trans_id);
1496
1497 version = query[0];
1498 str = os_malloc(query_len);
1499 if (str == NULL)
1500 return;
1501 os_memcpy(str, query + 1, query_len - 1);
1502 str[query_len - 1] = '\0';
1503
1504 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1505 struct p2p_srv_upnp, list) {
1506 if (version != usrv->version)
1507 continue;
1508
1509 if (os_strcmp(str, "ssdp:all") != 0 &&
1510 os_strstr(usrv->service, str) == NULL)
1511 continue;
1512
1513 if (wpabuf_tailroom(resp) < 2)
1514 break;
1515 if (count == 0) {
1516 /* Status Code */
1517 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1518 /* Response Data */
1519 wpabuf_put_u8(resp, version);
1520 } else
1521 wpabuf_put_u8(resp, ',');
1522
1523 count++;
1524
1525 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1526 usrv->service);
1527 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1528 break;
1529 wpabuf_put_str(resp, usrv->service);
1530 }
1531 os_free(str);
1532
1533 if (count == 0) {
1534 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1535 "available");
1536 /* Status Code */
1537 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
1538 /* Response Data: empty */
1539 }
1540
1541 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1542}
1543
1544
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001545#ifdef CONFIG_WIFI_DISPLAY
1546static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
1547 struct wpabuf *resp, u8 srv_trans_id,
1548 const u8 *query, size_t query_len)
1549{
1550 const u8 *pos;
1551 u8 role;
1552 u8 *len_pos;
1553
1554 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
1555
1556 if (!wpa_s->global->wifi_display) {
1557 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
1558 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
1559 srv_trans_id);
1560 return;
1561 }
1562
1563 if (query_len < 1) {
1564 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
1565 "Role");
1566 return;
1567 }
1568
1569 if (wpabuf_tailroom(resp) < 5)
1570 return;
1571
1572 pos = query;
1573 role = *pos++;
1574 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
1575
1576 /* TODO: role specific handling */
1577
1578 /* Length (to be filled) */
1579 len_pos = wpabuf_put(resp, 2);
1580 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
1581 wpabuf_put_u8(resp, srv_trans_id);
1582 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
1583
1584 while (pos < query + query_len) {
1585 if (*pos < MAX_WFD_SUBELEMS &&
1586 wpa_s->global->wfd_subelem[*pos] &&
1587 wpabuf_tailroom(resp) >=
1588 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
1589 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
1590 "subelement %u", *pos);
1591 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
1592 }
1593 pos++;
1594 }
1595
1596 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1597}
1598#endif /* CONFIG_WIFI_DISPLAY */
1599
1600
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001601void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1602 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1603{
1604 struct wpa_supplicant *wpa_s = ctx;
1605 const u8 *pos = tlvs;
1606 const u8 *end = tlvs + tlvs_len;
1607 const u8 *tlv_end;
1608 u16 slen;
1609 struct wpabuf *resp;
1610 u8 srv_proto, srv_trans_id;
1611 size_t buf_len;
1612 char *buf;
1613
1614 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1615 tlvs, tlvs_len);
1616 buf_len = 2 * tlvs_len + 1;
1617 buf = os_malloc(buf_len);
1618 if (buf) {
1619 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1620 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1621 MACSTR " %u %u %s",
1622 freq, MAC2STR(sa), dialog_token, update_indic,
1623 buf);
1624 os_free(buf);
1625 }
1626
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001627 if (wpa_s->p2p_sd_over_ctrl_iface) {
1628 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1629 update_indic, tlvs, tlvs_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001630 return; /* to be processed by an external program */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001631 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001632
1633 resp = wpabuf_alloc(10000);
1634 if (resp == NULL)
1635 return;
1636
1637 while (pos + 1 < end) {
1638 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1639 slen = WPA_GET_LE16(pos);
1640 pos += 2;
1641 if (pos + slen > end || slen < 2) {
1642 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1643 "length");
1644 wpabuf_free(resp);
1645 return;
1646 }
1647 tlv_end = pos + slen;
1648
1649 srv_proto = *pos++;
1650 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1651 srv_proto);
1652 srv_trans_id = *pos++;
1653 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1654 srv_trans_id);
1655
1656 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1657 pos, tlv_end - pos);
1658
1659
1660 if (wpa_s->force_long_sd) {
1661 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1662 "response");
1663 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1664 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1665 goto done;
1666 }
1667
1668 switch (srv_proto) {
1669 case P2P_SERV_ALL_SERVICES:
1670 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1671 "for all services");
1672 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1673 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1674 wpa_printf(MSG_DEBUG, "P2P: No service "
1675 "discovery protocols available");
1676 wpas_sd_add_proto_not_avail(
1677 resp, P2P_SERV_ALL_SERVICES,
1678 srv_trans_id);
1679 break;
1680 }
1681 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1682 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1683 break;
1684 case P2P_SERV_BONJOUR:
1685 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1686 pos, tlv_end - pos);
1687 break;
1688 case P2P_SERV_UPNP:
1689 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1690 pos, tlv_end - pos);
1691 break;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001692#ifdef CONFIG_WIFI_DISPLAY
1693 case P2P_SERV_WIFI_DISPLAY:
1694 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
1695 pos, tlv_end - pos);
1696 break;
1697#endif /* CONFIG_WIFI_DISPLAY */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001698 default:
1699 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1700 "protocol %u", srv_proto);
1701 wpas_sd_add_proto_not_avail(resp, srv_proto,
1702 srv_trans_id);
1703 break;
1704 }
1705
1706 pos = tlv_end;
1707 }
1708
1709done:
1710 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1711 update_indic, tlvs, tlvs_len);
1712
1713 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1714
1715 wpabuf_free(resp);
1716}
1717
1718
1719void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1720 const u8 *tlvs, size_t tlvs_len)
1721{
1722 struct wpa_supplicant *wpa_s = ctx;
1723 const u8 *pos = tlvs;
1724 const u8 *end = tlvs + tlvs_len;
1725 const u8 *tlv_end;
1726 u16 slen;
1727 size_t buf_len;
1728 char *buf;
1729
1730 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1731 tlvs, tlvs_len);
1732 if (tlvs_len > 1500) {
1733 /* TODO: better way for handling this */
1734 wpa_msg_ctrl(wpa_s, MSG_INFO,
1735 P2P_EVENT_SERV_DISC_RESP MACSTR
1736 " %u <long response: %u bytes>",
1737 MAC2STR(sa), update_indic,
1738 (unsigned int) tlvs_len);
1739 } else {
1740 buf_len = 2 * tlvs_len + 1;
1741 buf = os_malloc(buf_len);
1742 if (buf) {
1743 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1744 wpa_msg_ctrl(wpa_s, MSG_INFO,
1745 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1746 MAC2STR(sa), update_indic, buf);
1747 os_free(buf);
1748 }
1749 }
1750
1751 while (pos < end) {
1752 u8 srv_proto, srv_trans_id, status;
1753
1754 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1755 slen = WPA_GET_LE16(pos);
1756 pos += 2;
1757 if (pos + slen > end || slen < 3) {
1758 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1759 "length");
1760 return;
1761 }
1762 tlv_end = pos + slen;
1763
1764 srv_proto = *pos++;
1765 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1766 srv_proto);
1767 srv_trans_id = *pos++;
1768 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1769 srv_trans_id);
1770 status = *pos++;
1771 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1772 status);
1773
1774 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1775 pos, tlv_end - pos);
1776
1777 pos = tlv_end;
1778 }
1779
1780 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
1781}
1782
1783
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001784u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1785 const struct wpabuf *tlvs)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001786{
1787 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001788 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001789 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001790 return 0;
1791 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001792}
1793
1794
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001795u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1796 u8 version, const char *query)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001797{
1798 struct wpabuf *tlvs;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001799 u64 ret;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001800
1801 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1802 if (tlvs == NULL)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001803 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001804 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1805 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1806 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1807 wpabuf_put_u8(tlvs, version);
1808 wpabuf_put_str(tlvs, query);
1809 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1810 wpabuf_free(tlvs);
1811 return ret;
1812}
1813
1814
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001815#ifdef CONFIG_WIFI_DISPLAY
1816
1817static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
1818 const struct wpabuf *tlvs)
1819{
1820 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1821 return 0;
1822 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1823 return 0;
1824 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
1825}
1826
1827
1828#define MAX_WFD_SD_SUBELEMS 20
1829
1830static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
1831 const char *subelems)
1832{
1833 u8 *len;
1834 const char *pos;
1835 int val;
1836 int count = 0;
1837
1838 len = wpabuf_put(tlvs, 2);
1839 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
1840 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
1841
1842 wpabuf_put_u8(tlvs, role);
1843
1844 pos = subelems;
1845 while (*pos) {
1846 val = atoi(pos);
1847 if (val >= 0 && val < 256) {
1848 wpabuf_put_u8(tlvs, val);
1849 count++;
1850 if (count == MAX_WFD_SD_SUBELEMS)
1851 break;
1852 }
1853 pos = os_strchr(pos + 1, ',');
1854 if (pos == NULL)
1855 break;
1856 pos++;
1857 }
1858
1859 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
1860}
1861
1862
1863u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
1864 const u8 *dst, const char *role)
1865{
1866 struct wpabuf *tlvs;
1867 u64 ret;
1868 const char *subelems;
1869 u8 id = 1;
1870
1871 subelems = os_strchr(role, ' ');
1872 if (subelems == NULL)
1873 return 0;
1874 subelems++;
1875
1876 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
1877 if (tlvs == NULL)
1878 return 0;
1879
1880 if (os_strstr(role, "[source]"))
1881 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
1882 if (os_strstr(role, "[pri-sink]"))
1883 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
1884 if (os_strstr(role, "[sec-sink]"))
1885 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
1886 if (os_strstr(role, "[source+sink]"))
1887 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
1888
1889 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
1890 wpabuf_free(tlvs);
1891 return ret;
1892}
1893
1894#endif /* CONFIG_WIFI_DISPLAY */
1895
1896
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001897int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001898{
1899 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001900 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001901 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1902 return -1;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001903 return p2p_sd_cancel_request(wpa_s->global->p2p,
1904 (void *) (uintptr_t) req);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001905}
1906
1907
1908void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1909 const u8 *dst, u8 dialog_token,
1910 const struct wpabuf *resp_tlvs)
1911{
1912 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1913 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
1914 resp_tlvs);
1915 return;
1916 }
1917 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1918 return;
1919 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1920 resp_tlvs);
1921}
1922
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07001923#ifdef ANDROID_P2P
1924void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s, int action)
1925#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001926void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07001927#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001928{
1929 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
1930 wpa_drv_p2p_service_update(wpa_s);
1931 return;
1932 }
1933 if (wpa_s->global->p2p)
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07001934#ifdef ANDROID_P2P
1935 p2p_sd_service_update(wpa_s->global->p2p, action);
1936#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001937 p2p_sd_service_update(wpa_s->global->p2p);
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07001938#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001939}
1940
1941
1942static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1943{
1944 dl_list_del(&bsrv->list);
1945 wpabuf_free(bsrv->query);
1946 wpabuf_free(bsrv->resp);
1947 os_free(bsrv);
1948}
1949
1950
1951static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1952{
1953 dl_list_del(&usrv->list);
1954 os_free(usrv->service);
1955 os_free(usrv);
1956}
1957
1958
1959void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1960{
1961 struct p2p_srv_bonjour *bsrv, *bn;
1962 struct p2p_srv_upnp *usrv, *un;
1963
1964 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1965 struct p2p_srv_bonjour, list)
1966 wpas_p2p_srv_bonjour_free(bsrv);
1967
1968 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1969 struct p2p_srv_upnp, list)
1970 wpas_p2p_srv_upnp_free(usrv);
1971
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07001972#ifdef ANDROID_P2P
1973 wpas_p2p_sd_service_update(wpa_s, SRV_FLUSH);
1974#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001975 wpas_p2p_sd_service_update(wpa_s);
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07001976#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001977}
1978
1979
1980int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1981 struct wpabuf *query, struct wpabuf *resp)
1982{
1983 struct p2p_srv_bonjour *bsrv;
1984
1985 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1986 if (bsrv) {
1987 wpabuf_free(query);
1988 wpabuf_free(bsrv->resp);
1989 bsrv->resp = resp;
1990 return 0;
1991 }
1992
1993 bsrv = os_zalloc(sizeof(*bsrv));
1994 if (bsrv == NULL)
1995 return -1;
1996 bsrv->query = query;
1997 bsrv->resp = resp;
1998 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1999
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07002000#ifdef ANDROID_P2P
2001 wpas_p2p_sd_service_update(wpa_s, SRV_ADD);
2002#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002003 wpas_p2p_sd_service_update(wpa_s);
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07002004#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002005 return 0;
2006}
2007
2008
2009int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
2010 const struct wpabuf *query)
2011{
2012 struct p2p_srv_bonjour *bsrv;
2013
2014 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
2015 if (bsrv == NULL)
2016 return -1;
2017 wpas_p2p_srv_bonjour_free(bsrv);
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07002018#ifdef ANDROID_P2P
2019 wpas_p2p_sd_service_update(wpa_s, SRV_DEL);
2020#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002021 wpas_p2p_sd_service_update(wpa_s);
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07002022#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002023 return 0;
2024}
2025
2026
2027int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
2028 const char *service)
2029{
2030 struct p2p_srv_upnp *usrv;
2031
2032 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
2033 return 0; /* Already listed */
2034 usrv = os_zalloc(sizeof(*usrv));
2035 if (usrv == NULL)
2036 return -1;
2037 usrv->version = version;
2038 usrv->service = os_strdup(service);
2039 if (usrv->service == NULL) {
2040 os_free(usrv);
2041 return -1;
2042 }
2043 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
2044
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07002045#ifdef ANDROID_P2P
2046 wpas_p2p_sd_service_update(wpa_s, SRV_ADD);
2047#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002048 wpas_p2p_sd_service_update(wpa_s);
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07002049#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002050 return 0;
2051}
2052
2053
2054int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
2055 const char *service)
2056{
2057 struct p2p_srv_upnp *usrv;
2058
2059 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
2060 if (usrv == NULL)
2061 return -1;
2062 wpas_p2p_srv_upnp_free(usrv);
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07002063#ifdef ANDROID_P2P
2064 wpas_p2p_sd_service_update(wpa_s, SRV_DEL);
2065#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002066 wpas_p2p_sd_service_update(wpa_s);
Dmitry Shmidtb5e8f062012-08-08 10:56:33 -07002067#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002068 return 0;
2069}
2070
2071
2072static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
2073 const u8 *peer, const char *params,
2074 unsigned int generated_pin)
2075{
2076 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
2077 MAC2STR(peer), generated_pin, params);
2078}
2079
2080
2081static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2082 const u8 *peer, const char *params)
2083{
2084 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
2085 MAC2STR(peer), params);
2086}
2087
2088
2089void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2090 const u8 *dev_addr, const u8 *pri_dev_type,
2091 const char *dev_name, u16 supp_config_methods,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002092 u8 dev_capab, u8 group_capab, const u8 *group_id,
2093 size_t group_id_len)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002094{
2095 struct wpa_supplicant *wpa_s = ctx;
2096 char devtype[WPS_DEV_TYPE_BUFSIZE];
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002097 char params[300];
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002098 u8 empty_dev_type[8];
2099 unsigned int generated_pin = 0;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002100 struct wpa_supplicant *group = NULL;
2101
2102 if (group_id) {
2103 for (group = wpa_s->global->ifaces; group; group = group->next)
2104 {
2105 struct wpa_ssid *s = group->current_ssid;
2106 if (s != NULL &&
2107 s->mode == WPAS_MODE_P2P_GO &&
2108 group_id_len - ETH_ALEN == s->ssid_len &&
2109 os_memcmp(group_id + ETH_ALEN, s->ssid,
2110 s->ssid_len) == 0)
2111 break;
2112 }
2113 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002114
2115 if (pri_dev_type == NULL) {
2116 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2117 pri_dev_type = empty_dev_type;
2118 }
2119 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2120 " pri_dev_type=%s name='%s' config_methods=0x%x "
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002121 "dev_capab=0x%x group_capab=0x%x%s%s",
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002122 MAC2STR(dev_addr),
2123 wps_dev_type_bin2str(pri_dev_type, devtype,
2124 sizeof(devtype)),
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002125 dev_name, supp_config_methods, dev_capab, group_capab,
2126 group ? " group=" : "",
2127 group ? group->ifname : "");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002128 params[sizeof(params) - 1] = '\0';
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002129
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002130 if (config_methods & WPS_CONFIG_DISPLAY) {
2131 generated_pin = wps_generate_pin();
2132 wpas_prov_disc_local_display(wpa_s, peer, params,
2133 generated_pin);
2134 } else if (config_methods & WPS_CONFIG_KEYPAD)
2135 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2136 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2137 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
2138 "%s", MAC2STR(peer), params);
Jouni Malinen75ecf522011-06-27 15:19:46 -07002139
2140 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2141 P2P_PROV_DISC_SUCCESS,
2142 config_methods, generated_pin);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002143}
2144
2145
2146void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2147{
2148 struct wpa_supplicant *wpa_s = ctx;
2149 unsigned int generated_pin = 0;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002150 char params[20];
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002151
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002152 if (wpa_s->pending_pd_before_join &&
2153 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2154 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2155 wpa_s->pending_pd_before_join = 0;
2156 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2157 "join-existing-group operation");
2158 wpas_p2p_join_start(wpa_s);
2159 return;
2160 }
2161
Dmitry Shmidt04949592012-07-19 12:16:46 -07002162 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2163 wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2164 os_snprintf(params, sizeof(params), " peer_go=%d",
2165 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2166 else
2167 params[0] = '\0';
2168
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002169 if (config_methods & WPS_CONFIG_DISPLAY)
Dmitry Shmidt04949592012-07-19 12:16:46 -07002170 wpas_prov_disc_local_keypad(wpa_s, peer, params);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002171 else if (config_methods & WPS_CONFIG_KEYPAD) {
2172 generated_pin = wps_generate_pin();
Dmitry Shmidt04949592012-07-19 12:16:46 -07002173 wpas_prov_disc_local_display(wpa_s, peer, params,
2174 generated_pin);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002175 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
Dmitry Shmidt04949592012-07-19 12:16:46 -07002176 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR
2177 "%s", MAC2STR(peer), params);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002178
Jouni Malinen75ecf522011-06-27 15:19:46 -07002179 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2180 P2P_PROV_DISC_SUCCESS,
2181 config_methods, generated_pin);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002182}
2183
2184
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002185static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2186 enum p2p_prov_disc_status status)
Jouni Malinen75ecf522011-06-27 15:19:46 -07002187{
2188 struct wpa_supplicant *wpa_s = ctx;
2189
Dmitry Shmidt04949592012-07-19 12:16:46 -07002190 if (wpa_s->p2p_fallback_to_go_neg) {
2191 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2192 "failed - fall back to GO Negotiation");
2193 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2194 return;
2195 }
2196
2197 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2198 " p2p_dev_addr=" MACSTR " status=%d",
2199 MAC2STR(peer), status);
2200
Jouni Malinen75ecf522011-06-27 15:19:46 -07002201 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2202 status, 0, 0);
2203}
2204
2205
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002206static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2207 const u8 *go_dev_addr, const u8 *ssid,
2208 size_t ssid_len, int *go, u8 *group_bssid,
2209 int *force_freq, int persistent_group)
2210{
2211 struct wpa_supplicant *wpa_s = ctx;
2212 struct wpa_ssid *s;
2213 u8 cur_bssid[ETH_ALEN];
2214 int res;
2215 struct wpa_supplicant *grp;
2216
2217 if (!persistent_group) {
2218 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2219 " to join an active group", MAC2STR(sa));
2220 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
2221 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2222 == 0 ||
2223 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
2224 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2225 "authorized invitation");
2226 goto accept_inv;
2227 }
2228 /*
2229 * Do not accept the invitation automatically; notify user and
2230 * request approval.
2231 */
2232 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2233 }
2234
2235 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2236 if (grp) {
2237 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2238 "running persistent group");
2239 if (*go)
2240 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2241 goto accept_inv;
2242 }
2243
2244 if (!wpa_s->conf->persistent_reconnect)
2245 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2246
2247 for (s = wpa_s->conf->ssid; s; s = s->next) {
2248 if (s->disabled == 2 &&
2249 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2250 s->ssid_len == ssid_len &&
2251 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2252 break;
2253 }
2254
2255 if (!s) {
2256 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2257 " requested reinvocation of an unknown group",
2258 MAC2STR(sa));
2259 return P2P_SC_FAIL_UNKNOWN_GROUP;
2260 }
2261
2262 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2263 *go = 1;
2264 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2265 wpa_printf(MSG_DEBUG, "P2P: The only available "
2266 "interface is already in use - reject "
2267 "invitation");
2268 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2269 }
2270 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2271 } else if (s->mode == WPAS_MODE_P2P_GO) {
2272 *go = 1;
2273 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2274 {
2275 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2276 "interface address for the group");
2277 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2278 }
2279 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2280 ETH_ALEN);
2281 }
2282
2283accept_inv:
2284 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
2285 wpa_s->assoc_freq) {
2286 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2287 "the channel we are already using");
2288 *force_freq = wpa_s->assoc_freq;
2289 }
2290
2291 res = wpa_drv_shared_freq(wpa_s);
2292 if (res > 0) {
2293 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2294 "with the channel we are already using on a "
2295 "shared interface");
2296 *force_freq = res;
2297 }
2298
2299 return P2P_SC_SUCCESS;
2300}
2301
2302
2303static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2304 const u8 *ssid, size_t ssid_len,
2305 const u8 *go_dev_addr, u8 status,
2306 int op_freq)
2307{
2308 struct wpa_supplicant *wpa_s = ctx;
2309 struct wpa_ssid *s;
2310
2311 for (s = wpa_s->conf->ssid; s; s = s->next) {
2312 if (s->disabled == 2 &&
2313 s->ssid_len == ssid_len &&
2314 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2315 break;
2316 }
2317
2318 if (status == P2P_SC_SUCCESS) {
2319 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2320 " was accepted; op_freq=%d MHz",
2321 MAC2STR(sa), op_freq);
2322 if (s) {
2323 wpas_p2p_group_add_persistent(
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002324 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002325 } else if (bssid) {
2326 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07002327 wpa_s->p2p_wps_method, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002328 }
2329 return;
2330 }
2331
2332 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2333 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2334 " was rejected (status %u)", MAC2STR(sa), status);
2335 return;
2336 }
2337
2338 if (!s) {
2339 if (bssid) {
2340 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2341 "sa=" MACSTR " go_dev_addr=" MACSTR
2342 " bssid=" MACSTR " unknown-network",
2343 MAC2STR(sa), MAC2STR(go_dev_addr),
2344 MAC2STR(bssid));
2345 } else {
2346 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2347 "sa=" MACSTR " go_dev_addr=" MACSTR
2348 " unknown-network",
2349 MAC2STR(sa), MAC2STR(go_dev_addr));
2350 }
2351 return;
2352 }
2353
2354 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
2355 " persistent=%d", MAC2STR(sa), s->id);
2356}
2357
2358
2359static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
2360{
2361 struct wpa_supplicant *wpa_s = ctx;
2362 struct wpa_ssid *ssid;
2363
2364 if (bssid) {
2365 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2366 "status=%d " MACSTR,
2367 status, MAC2STR(bssid));
2368 } else {
2369 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2370 "status=%d ", status);
2371 }
2372 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
2373
2374 if (wpa_s->pending_invite_ssid_id == -1)
2375 return; /* Invitation to active group */
2376
2377 if (status != P2P_SC_SUCCESS) {
2378 wpas_p2p_remove_pending_group_interface(wpa_s);
2379 return;
2380 }
2381
2382 ssid = wpa_config_get_network(wpa_s->conf,
2383 wpa_s->pending_invite_ssid_id);
2384 if (ssid == NULL) {
2385 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2386 "data matching with invitation");
2387 return;
2388 }
2389
2390 wpas_p2p_group_add_persistent(wpa_s, ssid,
Jouni Malinen31be0a42012-08-31 21:20:51 +03002391 ssid->mode == WPAS_MODE_P2P_GO,
2392 wpa_s->p2p_persistent_go_freq,
2393 wpa_s->p2p_go_ht40);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002394}
2395
2396
Dmitry Shmidt04949592012-07-19 12:16:46 -07002397static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2398 unsigned int freq)
2399{
2400 unsigned int i;
2401
2402 if (global->p2p_disallow_freq == NULL)
2403 return 0;
2404
2405 for (i = 0; i < global->num_p2p_disallow_freq; i++) {
2406 if (freq >= global->p2p_disallow_freq[i].min &&
2407 freq <= global->p2p_disallow_freq[i].max)
2408 return 1;
2409 }
2410
2411 return 0;
2412}
2413
2414
2415static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
2416{
2417 reg->channel[reg->channels] = chan;
2418 reg->channels++;
2419}
2420
2421
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002422static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2423 struct p2p_channels *chan)
2424{
2425 int i, cla = 0;
2426
2427 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2428 "band");
2429
2430 /* Operating class 81 - 2.4 GHz band channels 1..13 */
2431 chan->reg_class[cla].reg_class = 81;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002432 chan->reg_class[cla].channels = 0;
2433 for (i = 0; i < 11; i++) {
2434 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
2435 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
2436 }
2437 if (chan->reg_class[cla].channels)
2438 cla++;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002439
2440 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2441 "band");
2442
2443 /* Operating class 115 - 5 GHz, channels 36-48 */
2444 chan->reg_class[cla].reg_class = 115;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002445 chan->reg_class[cla].channels = 0;
2446 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
2447 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
2448 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
2449 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
2450 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
2451 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
2452 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
2453 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
2454 if (chan->reg_class[cla].channels)
2455 cla++;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002456
2457 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2458 "band");
2459
2460 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2461 chan->reg_class[cla].reg_class = 124;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002462 chan->reg_class[cla].channels = 0;
2463 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
2464 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
2465 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
2466 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
2467 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
2468 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
2469 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
2470 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
2471 if (chan->reg_class[cla].channels)
2472 cla++;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002473
2474 chan->reg_classes = cla;
2475 return 0;
2476}
2477
2478
2479static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2480 u16 num_modes,
2481 enum hostapd_hw_mode mode)
2482{
2483 u16 i;
2484
2485 for (i = 0; i < num_modes; i++) {
2486 if (modes[i].mode == mode)
2487 return &modes[i];
2488 }
2489
2490 return NULL;
2491}
2492
2493
Dmitry Shmidt04949592012-07-19 12:16:46 -07002494static int has_channel(struct wpa_global *global,
2495 struct hostapd_hw_modes *mode, u8 chan, int *flags)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002496{
2497 int i;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002498 unsigned int freq;
2499
2500 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
2501 chan * 5;
2502 if (wpas_p2p_disallowed_freq(global, freq))
2503 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002504
2505 for (i = 0; i < mode->num_channels; i++) {
2506 if (mode->channels[i].chan == chan) {
2507 if (flags)
2508 *flags = mode->channels[i].flag;
2509 return !(mode->channels[i].flag &
2510 (HOSTAPD_CHAN_DISABLED |
2511 HOSTAPD_CHAN_PASSIVE_SCAN |
2512 HOSTAPD_CHAN_NO_IBSS |
2513 HOSTAPD_CHAN_RADAR));
2514 }
2515 }
2516
2517 return 0;
2518}
2519
2520
2521struct p2p_oper_class_map {
2522 enum hostapd_hw_mode mode;
2523 u8 op_class;
2524 u8 min_chan;
2525 u8 max_chan;
2526 u8 inc;
2527 enum { BW20, BW40PLUS, BW40MINUS } bw;
2528};
2529
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002530static struct p2p_oper_class_map op_class[] = {
2531 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
2532 { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1, BW20 },
2533#if 0 /* Do not enable HT40 on 2 GHz for now */
2534 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2535 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2536#endif
2537 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2538 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2539 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2540 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2541 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2542 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2543 { -1, 0, 0, 0, 0, BW20 }
2544};
2545
2546
2547static int wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
2548 struct hostapd_hw_modes *mode,
2549 u8 channel, u8 bw)
2550{
2551 int flag;
2552
2553 if (!has_channel(wpa_s->global, mode, channel, &flag))
2554 return -1;
2555 if (bw == BW40MINUS &&
2556 (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2557 !has_channel(wpa_s->global, mode, channel - 4, NULL)))
2558 return 0;
2559 if (bw == BW40PLUS &&
2560 (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2561 !has_channel(wpa_s->global, mode, channel + 4, NULL)))
2562 return 0;
2563 return 1;
2564}
2565
2566
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002567static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
2568 struct p2p_channels *chan)
2569{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002570 struct hostapd_hw_modes *mode;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002571 int cla, op;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002572
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002573 if (wpa_s->hw.modes == NULL) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002574 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2575 "of all supported channels; assume dualband "
2576 "support");
2577 return wpas_p2p_default_channels(wpa_s, chan);
2578 }
2579
2580 cla = 0;
2581
2582 for (op = 0; op_class[op].op_class; op++) {
2583 struct p2p_oper_class_map *o = &op_class[op];
2584 u8 ch;
2585 struct p2p_reg_class *reg = NULL;
2586
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002587 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002588 if (mode == NULL)
2589 continue;
2590 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002591 if (wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw) < 1)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002592 continue;
2593 if (reg == NULL) {
2594 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2595 "class %u", o->op_class);
2596 reg = &chan->reg_class[cla];
2597 cla++;
2598 reg->reg_class = o->op_class;
2599 }
2600 reg->channel[reg->channels] = ch;
2601 reg->channels++;
2602 }
2603 if (reg) {
2604 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2605 reg->channel, reg->channels);
2606 }
2607 }
2608
2609 chan->reg_classes = cla;
2610
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002611 return 0;
2612}
2613
2614
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002615int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
2616 struct hostapd_hw_modes *mode, u8 channel)
2617{
2618 int op, ret;
2619
2620 for (op = 0; op_class[op].op_class; op++) {
2621 struct p2p_oper_class_map *o = &op_class[op];
2622 u8 ch;
2623
2624 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2625 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
2626 o->bw == BW20 || ch != channel)
2627 continue;
2628 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
2629 if (ret < 0)
2630 continue;
2631 else if (ret > 0)
2632 return (o->bw == BW40MINUS) ? -1 : 1;
2633 else
2634 return 0;
2635 }
2636 }
2637 return 0;
2638}
2639
2640
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002641static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2642 size_t buf_len)
2643{
2644 struct wpa_supplicant *wpa_s = ctx;
2645
2646 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2647 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2648 break;
2649 }
2650 if (wpa_s == NULL)
2651 return -1;
2652
2653 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2654}
2655
2656
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002657static int wpas_go_connected(void *ctx, const u8 *dev_addr)
2658{
2659 struct wpa_supplicant *wpa_s = ctx;
2660
2661 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2662 struct wpa_ssid *ssid = wpa_s->current_ssid;
2663 if (ssid == NULL)
2664 continue;
2665 if (ssid->mode != WPAS_MODE_INFRA)
2666 continue;
2667 if (wpa_s->wpa_state != WPA_COMPLETED &&
2668 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
2669 continue;
2670 if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
2671 return 1;
2672 }
2673
2674 return 0;
2675}
2676
2677
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002678/**
2679 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2680 * @global: Pointer to global data from wpa_supplicant_init()
2681 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2682 * Returns: 0 on success, -1 on failure
2683 */
2684int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2685{
2686 struct p2p_config p2p;
2687 unsigned int r;
2688 int i;
2689
2690 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2691 return 0;
2692
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002693 if (global->p2p)
2694 return 0;
2695
2696 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2697 struct p2p_params params;
2698
2699 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2700 os_memset(&params, 0, sizeof(params));
2701 params.dev_name = wpa_s->conf->device_name;
2702 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2703 WPS_DEV_TYPE_LEN);
2704 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2705 os_memcpy(params.sec_dev_type,
2706 wpa_s->conf->sec_device_type,
2707 params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2708
2709 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
2710 return -1;
2711
2712 return 0;
2713 }
2714
2715 os_memset(&p2p, 0, sizeof(p2p));
2716 p2p.msg_ctx = wpa_s;
2717 p2p.cb_ctx = wpa_s;
2718 p2p.p2p_scan = wpas_p2p_scan;
2719 p2p.send_action = wpas_send_action;
2720 p2p.send_action_done = wpas_send_action_done;
2721 p2p.go_neg_completed = wpas_go_neg_completed;
2722 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2723 p2p.dev_found = wpas_dev_found;
2724 p2p.dev_lost = wpas_dev_lost;
2725 p2p.start_listen = wpas_start_listen;
2726 p2p.stop_listen = wpas_stop_listen;
2727 p2p.send_probe_resp = wpas_send_probe_resp;
2728 p2p.sd_request = wpas_sd_request;
2729 p2p.sd_response = wpas_sd_response;
2730 p2p.prov_disc_req = wpas_prov_disc_req;
2731 p2p.prov_disc_resp = wpas_prov_disc_resp;
Jouni Malinen75ecf522011-06-27 15:19:46 -07002732 p2p.prov_disc_fail = wpas_prov_disc_fail;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002733 p2p.invitation_process = wpas_invitation_process;
2734 p2p.invitation_received = wpas_invitation_received;
2735 p2p.invitation_result = wpas_invitation_result;
2736 p2p.get_noa = wpas_get_noa;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002737 p2p.go_connected = wpas_go_connected;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002738
2739 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002740 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002741 p2p.dev_name = wpa_s->conf->device_name;
2742 p2p.manufacturer = wpa_s->conf->manufacturer;
2743 p2p.model_name = wpa_s->conf->model_name;
2744 p2p.model_number = wpa_s->conf->model_number;
2745 p2p.serial_number = wpa_s->conf->serial_number;
2746 if (wpa_s->wps) {
2747 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2748 p2p.config_methods = wpa_s->wps->config_methods;
2749 }
2750
2751 if (wpa_s->conf->p2p_listen_reg_class &&
2752 wpa_s->conf->p2p_listen_channel) {
2753 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2754 p2p.channel = wpa_s->conf->p2p_listen_channel;
2755 } else {
2756 p2p.reg_class = 81;
2757 /*
2758 * Pick one of the social channels randomly as the listen
2759 * channel.
2760 */
2761 os_get_random((u8 *) &r, sizeof(r));
2762 p2p.channel = 1 + (r % 3) * 5;
2763 }
2764 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
2765
2766 if (wpa_s->conf->p2p_oper_reg_class &&
2767 wpa_s->conf->p2p_oper_channel) {
2768 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2769 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2770 p2p.cfg_op_channel = 1;
2771 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2772 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2773
2774 } else {
2775 p2p.op_reg_class = 81;
2776 /*
2777 * Use random operation channel from (1, 6, 11) if no other
2778 * preference is indicated.
2779 */
2780 os_get_random((u8 *) &r, sizeof(r));
2781 p2p.op_channel = 1 + (r % 3) * 5;
2782 p2p.cfg_op_channel = 0;
2783 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2784 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2785 }
2786 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2787 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2788 p2p.country[2] = 0x04;
2789 } else
2790 os_memcpy(p2p.country, "XX\x04", 3);
2791
2792 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
2793 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2794 "channel list");
2795 return -1;
2796 }
2797
2798 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2799 WPS_DEV_TYPE_LEN);
2800
2801 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2802 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2803 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2804
2805 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2806 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2807
2808 p2p.max_peers = 100;
2809
2810 if (wpa_s->conf->p2p_ssid_postfix) {
2811 p2p.ssid_postfix_len =
2812 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2813 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2814 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2815 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2816 p2p.ssid_postfix_len);
2817 }
2818
2819 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2820
Dmitry Shmidt04abaa92012-08-17 16:22:31 -07002821#ifdef ANDROID_P2P
2822 if(wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)
2823 p2p.p2p_concurrency = P2P_MULTI_CHANNEL_CONCURRENT;
2824 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT)
2825 p2p.p2p_concurrency = P2P_SINGLE_CHANNEL_CONCURRENT;
2826#endif
2827
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002828 global->p2p = p2p_init(&p2p);
2829 if (global->p2p == NULL)
2830 return -1;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002831 global->p2p_init_wpa_s = wpa_s;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002832
2833 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2834 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2835 continue;
2836 p2p_add_wps_vendor_extension(
2837 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2838 }
2839
2840 return 0;
2841}
2842
2843
2844/**
2845 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2846 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2847 *
2848 * This function deinitialize per-interface P2P data.
2849 */
2850void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2851{
2852 if (wpa_s->driver && wpa_s->drv_priv)
2853 wpa_drv_probe_req_report(wpa_s, 0);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002854
2855 if (wpa_s->go_params) {
2856 /* Clear any stored provisioning info */
2857 p2p_clear_provisioning_info(
2858 wpa_s->global->p2p,
Dmitry Shmidt04949592012-07-19 12:16:46 -07002859 wpa_s->go_params->peer_device_addr);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002860 }
2861
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002862 os_free(wpa_s->go_params);
2863 wpa_s->go_params = NULL;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002864 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2865 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002866 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002867 wpa_s->p2p_long_listen = 0;
2868 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2869 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
2870 wpas_p2p_remove_pending_group_interface(wpa_s);
2871
2872 /* TODO: remove group interface from the driver if this wpa_s instance
2873 * is on top of a P2P group interface */
2874}
2875
2876
2877/**
2878 * wpas_p2p_deinit_global - Deinitialize global P2P module
2879 * @global: Pointer to global data from wpa_supplicant_init()
2880 *
2881 * This function deinitializes the global (per device) P2P module.
2882 */
2883void wpas_p2p_deinit_global(struct wpa_global *global)
2884{
2885 struct wpa_supplicant *wpa_s, *tmp;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002886
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002887 wpa_s = global->ifaces;
2888 if (wpa_s)
2889 wpas_p2p_service_flush(wpa_s);
2890
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002891 if (global->p2p == NULL)
2892 return;
2893
2894 /* Remove remaining P2P group interfaces */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002895 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2896 wpa_s = wpa_s->next;
2897 while (wpa_s) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002898 tmp = global->ifaces;
2899 while (tmp &&
2900 (tmp == wpa_s ||
2901 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2902 tmp = tmp->next;
2903 }
2904 if (tmp == NULL)
2905 break;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002906 /* Disconnect from the P2P group and deinit the interface */
2907 wpas_p2p_disconnect(tmp);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002908 }
2909
2910 /*
2911 * Deinit GO data on any possibly remaining interface (if main
2912 * interface is used as GO).
2913 */
2914 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2915 if (wpa_s->ap_iface)
2916 wpas_p2p_group_deinit(wpa_s);
2917 }
2918
2919 p2p_deinit(global->p2p);
2920 global->p2p = NULL;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002921 global->p2p_init_wpa_s = NULL;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002922}
2923
2924
2925static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2926{
2927 if (wpa_s->drv_flags &
2928 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
2929 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
2930 return 1; /* P2P group requires a new interface in every case
2931 */
2932 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2933 return 0; /* driver does not support concurrent operations */
2934 if (wpa_s->global->ifaces->next)
2935 return 1; /* more that one interface already in use */
2936 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2937 return 1; /* this interface is already in use */
2938 return 0;
2939}
2940
2941
2942static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2943 const u8 *peer_addr,
2944 enum p2p_wps_method wps_method,
2945 int go_intent, const u8 *own_interface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07002946 unsigned int force_freq, int persistent_group,
2947 struct wpa_ssid *ssid)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002948{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002949 if (persistent_group && wpa_s->conf->persistent_reconnect)
2950 persistent_group = 2;
2951
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002952 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2953 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
2954 go_intent, own_interface_addr,
2955 force_freq, persistent_group);
2956 }
2957
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002958 /*
2959 * Increase GO config timeout if HT40 is used since it takes some time
2960 * to scan channels for coex purposes before the BSS can be started.
2961 */
2962 p2p_set_config_timeout(wpa_s->global->p2p,
2963 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
2964
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002965 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2966 go_intent, own_interface_addr, force_freq,
Dmitry Shmidt04949592012-07-19 12:16:46 -07002967 persistent_group, ssid ? ssid->ssid : NULL,
2968 ssid ? ssid->ssid_len : 0,
2969 wpa_s->p2p_pd_before_go_neg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002970}
2971
2972
2973static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2974 const u8 *peer_addr,
2975 enum p2p_wps_method wps_method,
2976 int go_intent, const u8 *own_interface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07002977 unsigned int force_freq, int persistent_group,
2978 struct wpa_ssid *ssid)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002979{
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002980 if (persistent_group && wpa_s->conf->persistent_reconnect)
2981 persistent_group = 2;
2982
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002983 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
2984 return -1;
2985
2986 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2987 go_intent, own_interface_addr, force_freq,
Dmitry Shmidt04949592012-07-19 12:16:46 -07002988 persistent_group, ssid ? ssid->ssid : NULL,
2989 ssid ? ssid->ssid_len : 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002990}
2991
2992
2993static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
2994{
2995 wpa_s->p2p_join_scan_count++;
2996 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
2997 wpa_s->p2p_join_scan_count);
2998 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
2999 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
3000 " for join operationg - stop join attempt",
3001 MAC2STR(wpa_s->pending_join_iface_addr));
3002 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
Dmitry Shmidt04949592012-07-19 12:16:46 -07003003 if (wpa_s->p2p_auto_pd) {
3004 wpa_s->p2p_auto_pd = 0;
3005 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3006 " p2p_dev_addr=" MACSTR " status=N/A",
3007 MAC2STR(wpa_s->pending_join_dev_addr));
3008 return;
3009 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003010 wpa_msg(wpa_s->parent, MSG_INFO,
3011 P2P_EVENT_GROUP_FORMATION_FAILURE);
3012 }
3013}
3014
3015
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003016static void wpas_p2p_pd_before_join_timeout(void *eloop_ctx, void *timeout_ctx)
3017{
3018 struct wpa_supplicant *wpa_s = eloop_ctx;
3019 if (!wpa_s->pending_pd_before_join)
3020 return;
3021 /*
3022 * Provision Discovery Response may have been lost - try to connect
3023 * anyway since we do not need any information from this PD.
3024 */
3025 wpa_printf(MSG_DEBUG, "P2P: PD timeout for join-existing-group - "
3026 "try to connect anyway");
3027 wpas_p2p_join_start(wpa_s);
3028}
3029
3030
Dmitry Shmidt04949592012-07-19 12:16:46 -07003031static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
3032{
3033 struct wpa_supplicant *iface;
3034 int shared_freq;
3035 u8 bssid[ETH_ALEN];
3036
3037 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)
3038 return 0;
3039
3040 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
3041 if (!wpas_p2p_create_iface(wpa_s) && iface == wpa_s)
3042 continue;
3043 if (iface->current_ssid == NULL || iface->assoc_freq == 0)
3044 continue;
3045 if (iface->current_ssid->mode == WPAS_MODE_AP ||
3046 iface->current_ssid->mode == WPAS_MODE_P2P_GO)
3047 shared_freq = iface->current_ssid->frequency;
3048 else if (wpa_drv_get_bssid(iface, bssid) == 0)
3049 shared_freq = iface->assoc_freq;
3050 else
3051 shared_freq = 0;
3052
3053 if (shared_freq && freq != shared_freq) {
3054 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - %s "
3055 "connected on %d MHz - new connection on "
3056 "%d MHz", iface->ifname, shared_freq, freq);
3057 return 1;
3058 }
3059 }
3060
3061 shared_freq = wpa_drv_shared_freq(wpa_s);
3062 if (shared_freq > 0 && shared_freq != freq) {
3063 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - shared "
3064 "virtual interface connected on %d MHz - new "
3065 "connection on %d MHz", shared_freq, freq);
3066 return 1;
3067 }
3068
3069 return 0;
3070}
3071
3072
3073static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
3074 const u8 *peer_dev_addr)
3075{
3076 struct wpa_bss *bss;
3077 int updated;
3078
3079 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
3080 if (bss == NULL)
3081 return -1;
3082 if (bss->last_update_idx < wpa_s->bss_update_idx) {
3083 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
3084 "last scan");
3085 return 0;
3086 }
3087
3088 updated = os_time_before(&wpa_s->p2p_auto_started, &bss->last_update);
3089 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
3090 "%ld.%06ld (%supdated in last scan)",
3091 bss->last_update.sec, bss->last_update.usec,
3092 updated ? "": "not ");
3093
3094 return updated;
3095}
3096
3097
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003098static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
3099 struct wpa_scan_results *scan_res)
3100{
3101 struct wpa_bss *bss;
3102 int freq;
3103 u8 iface_addr[ETH_ALEN];
Dmitry Shmidt04949592012-07-19 12:16:46 -07003104
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003105 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3106
3107 if (wpa_s->global->p2p_disabled)
3108 return;
3109
Dmitry Shmidt04949592012-07-19 12:16:46 -07003110 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
3111 scan_res ? (int) scan_res->num : -1,
3112 wpa_s->p2p_auto_join ? "auto_" : "");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003113
3114 if (scan_res)
3115 wpas_p2p_scan_res_handler(wpa_s, scan_res);
3116
Dmitry Shmidt04949592012-07-19 12:16:46 -07003117 if (wpa_s->p2p_auto_pd) {
3118 int join = wpas_p2p_peer_go(wpa_s,
3119 wpa_s->pending_join_dev_addr);
3120 if (join == 0 &&
3121 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
3122 wpa_s->auto_pd_scan_retry++;
3123 bss = wpa_bss_get_bssid(wpa_s,
3124 wpa_s->pending_join_dev_addr);
3125 if (bss) {
3126 freq = bss->freq;
3127 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
3128 "the peer " MACSTR " at %d MHz",
3129 wpa_s->auto_pd_scan_retry,
3130 MAC2STR(wpa_s->
3131 pending_join_dev_addr),
3132 freq);
3133 wpas_p2p_join_scan_req(wpa_s, freq);
3134 return;
3135 }
3136 }
3137
3138 if (join < 0)
3139 join = 0;
3140
3141 wpa_s->p2p_auto_pd = 0;
3142 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
3143 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
3144 MAC2STR(wpa_s->pending_join_dev_addr), join);
3145 if (p2p_prov_disc_req(wpa_s->global->p2p,
3146 wpa_s->pending_join_dev_addr,
3147 wpa_s->pending_pd_config_methods, join,
3148 0) < 0) {
3149 wpa_s->p2p_auto_pd = 0;
3150 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3151 " p2p_dev_addr=" MACSTR " status=N/A",
3152 MAC2STR(wpa_s->pending_join_dev_addr));
3153 }
3154 return;
3155 }
3156
3157 if (wpa_s->p2p_auto_join) {
3158 int join = wpas_p2p_peer_go(wpa_s,
3159 wpa_s->pending_join_dev_addr);
3160 if (join < 0) {
3161 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
3162 "running a GO -> use GO Negotiation");
3163 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
3164 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
3165 wpa_s->p2p_persistent_group, 0, 0, 0,
3166 wpa_s->p2p_go_intent,
3167 wpa_s->p2p_connect_freq,
3168 wpa_s->p2p_persistent_id,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003169 wpa_s->p2p_pd_before_go_neg,
3170 wpa_s->p2p_go_ht40);
Dmitry Shmidt04949592012-07-19 12:16:46 -07003171 return;
3172 }
3173
3174 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
3175 "try to join the group", join ? "" :
3176 " in older scan");
3177 if (!join)
3178 wpa_s->p2p_fallback_to_go_neg = 1;
3179 }
3180
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003181 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3182 wpa_s->pending_join_iface_addr);
3183 if (freq < 0 &&
3184 p2p_get_interface_addr(wpa_s->global->p2p,
3185 wpa_s->pending_join_dev_addr,
3186 iface_addr) == 0 &&
3187 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
3188 {
3189 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
3190 "address for join from " MACSTR " to " MACSTR
3191 " based on newly discovered P2P peer entry",
3192 MAC2STR(wpa_s->pending_join_iface_addr),
3193 MAC2STR(iface_addr));
3194 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
3195 ETH_ALEN);
3196
3197 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3198 wpa_s->pending_join_iface_addr);
3199 }
3200 if (freq >= 0) {
3201 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3202 "from P2P peer table: %d MHz", freq);
3203 }
3204 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3205 if (bss) {
3206 freq = bss->freq;
3207 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3208 "from BSS table: %d MHz", freq);
3209 }
3210 if (freq > 0) {
3211 u16 method;
3212
Dmitry Shmidt04949592012-07-19 12:16:46 -07003213 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
3214 wpa_msg(wpa_s->parent, MSG_INFO,
3215 P2P_EVENT_GROUP_FORMATION_FAILURE
3216 "reason=FREQ_CONFLICT");
3217 return;
3218 }
3219
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003220 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
3221 "prior to joining an existing group (GO " MACSTR
3222 " freq=%u MHz)",
3223 MAC2STR(wpa_s->pending_join_dev_addr), freq);
3224 wpa_s->pending_pd_before_join = 1;
3225
3226 switch (wpa_s->pending_join_wps_method) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003227 case WPS_PIN_DISPLAY:
3228 method = WPS_CONFIG_KEYPAD;
3229 break;
3230 case WPS_PIN_KEYPAD:
3231 method = WPS_CONFIG_DISPLAY;
3232 break;
3233 case WPS_PBC:
3234 method = WPS_CONFIG_PUSHBUTTON;
3235 break;
3236 default:
3237 method = 0;
3238 break;
3239 }
3240
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003241 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
3242 wpa_s->pending_join_dev_addr) ==
3243 method)) {
3244 /*
3245 * We have already performed provision discovery for
3246 * joining the group. Proceed directly to join
3247 * operation without duplicated provision discovery. */
3248 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
3249 "with " MACSTR " already done - proceed to "
3250 "join",
3251 MAC2STR(wpa_s->pending_join_dev_addr));
3252 wpa_s->pending_pd_before_join = 0;
3253 goto start;
3254 }
3255
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003256 if (p2p_prov_disc_req(wpa_s->global->p2p,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003257 wpa_s->pending_join_dev_addr, method, 1,
3258 freq) < 0) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003259 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
3260 "Discovery Request before joining an "
3261 "existing group");
3262 wpa_s->pending_pd_before_join = 0;
3263 goto start;
3264 }
3265
3266 /*
3267 * Actual join operation will be started from the Action frame
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003268 * TX status callback (if no ACK is received) or when the
3269 * Provision Discovery Response is received. Use a short
3270 * timeout as a backup mechanism should the Provision Discovery
3271 * Response be lost for any reason.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003272 */
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003273 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s,
3274 NULL);
3275 eloop_register_timeout(2, 0, wpas_p2p_pd_before_join_timeout,
3276 wpa_s, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003277 return;
3278 }
3279
3280 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
3281 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3282 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3283 wpas_p2p_check_join_scan_limit(wpa_s);
3284 return;
3285
3286start:
3287 /* Start join operation immediately */
3288 wpas_p2p_join_start(wpa_s);
3289}
3290
3291
Dmitry Shmidt04949592012-07-19 12:16:46 -07003292static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003293{
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003294 int ret;
3295 struct wpa_driver_scan_params params;
3296 struct wpabuf *wps_ie, *ies;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003297 size_t ielen;
Dmitry Shmidt04949592012-07-19 12:16:46 -07003298 int freqs[2] = { 0, 0 };
Dmitry Shmidtad266fb2012-08-24 17:03:35 -07003299#ifdef ANDROID_P2P
3300 int oper_freq;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003301
Dmitry Shmidtad266fb2012-08-24 17:03:35 -07003302 /* If freq is not provided, check the operating freq of the GO and do a
3303 * a directed scan to save time
3304 */
3305 if(!freq) {
3306 freq = (oper_freq = p2p_get_oper_freq(wpa_s->global->p2p,
3307 wpa_s->pending_join_iface_addr) == -1) ? 0 : oper_freq;
3308 }
3309#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003310 os_memset(&params, 0, sizeof(params));
3311
3312 /* P2P Wildcard SSID */
3313 params.num_ssids = 1;
3314 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
3315 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
3316
3317 wpa_s->wps->dev.p2p = 1;
Dmitry Shmidt04949592012-07-19 12:16:46 -07003318 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
3319 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
3320 NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003321 if (wps_ie == NULL) {
3322 wpas_p2p_scan_res_join(wpa_s, NULL);
3323 return;
3324 }
3325
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003326 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
3327 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003328 if (ies == NULL) {
3329 wpabuf_free(wps_ie);
3330 wpas_p2p_scan_res_join(wpa_s, NULL);
3331 return;
3332 }
3333 wpabuf_put_buf(ies, wps_ie);
3334 wpabuf_free(wps_ie);
3335
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003336 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003337
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003338 params.p2p_probe = 1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003339 params.extra_ies = wpabuf_head(ies);
3340 params.extra_ies_len = wpabuf_len(ies);
Dmitry Shmidt04949592012-07-19 12:16:46 -07003341 if (freq > 0) {
3342 freqs[0] = freq;
3343 params.freqs = freqs;
3344 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003345
3346 /*
3347 * Run a scan to update BSS table and start Provision Discovery once
3348 * the new scan results become available.
3349 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003350 ret = wpa_drv_scan(wpa_s, &params);
Dmitry Shmidt04949592012-07-19 12:16:46 -07003351 if (!ret)
3352 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003353
3354 wpabuf_free(ies);
3355
3356 if (ret) {
3357 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
3358 "try again later");
3359 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3360 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3361 wpas_p2p_check_join_scan_limit(wpa_s);
3362 }
3363}
3364
3365
Dmitry Shmidt04949592012-07-19 12:16:46 -07003366static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
3367{
3368 struct wpa_supplicant *wpa_s = eloop_ctx;
3369 wpas_p2p_join_scan_req(wpa_s, 0);
3370}
3371
3372
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003373static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07003374 const u8 *dev_addr, enum p2p_wps_method wps_method,
3375 int auto_join)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003376{
3377 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
Dmitry Shmidt04949592012-07-19 12:16:46 -07003378 MACSTR " dev " MACSTR ")%s",
3379 MAC2STR(iface_addr), MAC2STR(dev_addr),
3380 auto_join ? " (auto_join)" : "");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003381
Dmitry Shmidt04949592012-07-19 12:16:46 -07003382 wpa_s->p2p_auto_pd = 0;
3383 wpa_s->p2p_auto_join = !!auto_join;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003384 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
3385 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
3386 wpa_s->pending_join_wps_method = wps_method;
3387
3388 /* Make sure we are not running find during connection establishment */
3389 wpas_p2p_stop_find(wpa_s);
3390
3391 wpa_s->p2p_join_scan_count = 0;
3392 wpas_p2p_join_scan(wpa_s, NULL);
3393 return 0;
3394}
3395
3396
3397static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
3398{
3399 struct wpa_supplicant *group;
3400 struct p2p_go_neg_results res;
Dmitry Shmidt04949592012-07-19 12:16:46 -07003401 struct wpa_bss *bss;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003402
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003403 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003404 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
3405 if (group == NULL)
3406 return -1;
3407 if (group != wpa_s) {
3408 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
3409 sizeof(group->p2p_pin));
3410 group->p2p_wps_method = wpa_s->p2p_wps_method;
3411 }
3412
3413 group->p2p_in_provisioning = 1;
Dmitry Shmidt04949592012-07-19 12:16:46 -07003414 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003415
3416 os_memset(&res, 0, sizeof(res));
3417 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
3418 ETH_ALEN);
3419 res.wps_method = wpa_s->pending_join_wps_method;
Dmitry Shmidt04949592012-07-19 12:16:46 -07003420 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3421 if (bss) {
3422 res.freq = bss->freq;
3423 res.ssid_len = bss->ssid_len;
3424 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
3425 }
3426
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003427 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
3428 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
3429 "starting client");
3430 wpa_drv_cancel_remain_on_channel(wpa_s);
3431 wpa_s->off_channel_freq = 0;
3432 wpa_s->roc_waiting_drv_freq = 0;
3433 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003434 wpas_start_wps_enrollee(group, &res);
3435
3436 /*
3437 * Allow a longer timeout for join-a-running-group than normal 15
3438 * second group formation timeout since the GO may not have authorized
3439 * our connection yet.
3440 */
3441 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
3442 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
3443 wpa_s, NULL);
3444
3445 return 0;
3446}
3447
3448
3449/**
3450 * wpas_p2p_connect - Request P2P Group Formation to be started
3451 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3452 * @peer_addr: Address of the peer P2P Device
3453 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
3454 * @persistent_group: Whether to create a persistent group
Dmitry Shmidt04949592012-07-19 12:16:46 -07003455 * @auto_join: Whether to select join vs. GO Negotiation automatically
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003456 * @join: Whether to join an existing group (as a client) instead of starting
3457 * Group Owner negotiation; @peer_addr is BSSID in that case
3458 * @auth: Whether to only authorize the connection instead of doing that and
3459 * initiating Group Owner negotiation
3460 * @go_intent: GO Intent or -1 to use default
3461 * @freq: Frequency for the group or 0 for auto-selection
Dmitry Shmidt04949592012-07-19 12:16:46 -07003462 * @persistent_id: Persistent group credentials to use for forcing GO
3463 * parameters or -1 to generate new values (SSID/passphrase)
3464 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
3465 * interoperability workaround when initiating group formation
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003466 * @ht40: Start GO with 40 MHz channel width
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003467 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
3468 * failure, -2 on failure due to channel not currently available,
3469 * -3 if forced channel is not supported
3470 */
3471int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3472 const char *pin, enum p2p_wps_method wps_method,
Dmitry Shmidt04949592012-07-19 12:16:46 -07003473 int persistent_group, int auto_join, int join, int auth,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003474 int go_intent, int freq, int persistent_id, int pd,
3475 int ht40)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003476{
3477 int force_freq = 0, oper_freq = 0;
3478 u8 bssid[ETH_ALEN];
3479 int ret = 0;
3480 enum wpa_driver_if_type iftype;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003481 const u8 *if_addr;
Dmitry Shmidt04949592012-07-19 12:16:46 -07003482 struct wpa_ssid *ssid = NULL;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003483
3484 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3485 return -1;
3486
Dmitry Shmidt04949592012-07-19 12:16:46 -07003487 if (persistent_id >= 0) {
3488 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
3489 if (ssid == NULL || ssid->disabled != 2 ||
3490 ssid->mode != WPAS_MODE_P2P_GO)
3491 return -1;
3492 }
3493
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003494 if (go_intent < 0)
3495 go_intent = wpa_s->conf->p2p_go_intent;
3496
3497 if (!auth)
3498 wpa_s->p2p_long_listen = 0;
3499
3500 wpa_s->p2p_wps_method = wps_method;
Dmitry Shmidt04949592012-07-19 12:16:46 -07003501 wpa_s->p2p_persistent_group = !!persistent_group;
3502 wpa_s->p2p_persistent_id = persistent_id;
3503 wpa_s->p2p_go_intent = go_intent;
3504 wpa_s->p2p_connect_freq = freq;
3505 wpa_s->p2p_fallback_to_go_neg = 0;
3506 wpa_s->p2p_pd_before_go_neg = !!pd;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003507 wpa_s->p2p_go_ht40 = !!ht40;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003508
3509 if (pin)
3510 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
3511 else if (wps_method == WPS_PIN_DISPLAY) {
3512 ret = wps_generate_pin();
3513 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
3514 ret);
3515 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
3516 wpa_s->p2p_pin);
3517 } else
3518 wpa_s->p2p_pin[0] = '\0';
3519
Dmitry Shmidt04949592012-07-19 12:16:46 -07003520 if (join || auto_join) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003521 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
3522 if (auth) {
3523 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
3524 "connect a running group from " MACSTR,
3525 MAC2STR(peer_addr));
3526 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
3527 return ret;
3528 }
3529 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
3530 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
3531 iface_addr) < 0) {
3532 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
3533 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
3534 dev_addr);
3535 }
Dmitry Shmidt04949592012-07-19 12:16:46 -07003536 if (auto_join) {
3537 os_get_time(&wpa_s->p2p_auto_started);
3538 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
3539 "%ld.%06ld",
3540 wpa_s->p2p_auto_started.sec,
3541 wpa_s->p2p_auto_started.usec);
3542 }
3543 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
3544 auto_join) < 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003545 return -1;
3546 return ret;
3547 }
3548
3549 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3550 wpa_s->assoc_freq)
3551 oper_freq = wpa_s->assoc_freq;
3552 else {
3553 oper_freq = wpa_drv_shared_freq(wpa_s);
3554 if (oper_freq < 0)
3555 oper_freq = 0;
3556 }
3557
3558 if (freq > 0) {
3559 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3560 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
3561 "(%u MHz) is not supported for P2P uses",
3562 freq);
3563 return -3;
3564 }
3565
3566 if (oper_freq > 0 && freq != oper_freq &&
3567 !(wpa_s->drv_flags &
3568 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3569 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3570 "on %u MHz while connected on another "
3571 "channel (%u MHz)", freq, oper_freq);
3572 return -2;
3573 }
3574 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3575 "requested channel (%u MHz)", freq);
3576 force_freq = freq;
3577 } else if (oper_freq > 0 &&
3578 !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
3579 if (!(wpa_s->drv_flags &
3580 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3581 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3582 "while connected on non-P2P supported "
3583 "channel (%u MHz)", oper_freq);
3584 return -2;
3585 }
3586 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
3587 "(%u MHz) not available for P2P - try to use "
3588 "another channel", oper_freq);
3589 force_freq = 0;
3590 } else if (oper_freq > 0) {
3591 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3592 "channel we are already using (%u MHz) on another "
3593 "interface", oper_freq);
3594 force_freq = oper_freq;
3595 }
3596
3597 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
3598
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003599 if (wpa_s->create_p2p_iface) {
3600 /* Prepare to add a new interface for the group */
3601 iftype = WPA_IF_P2P_GROUP;
3602 if (go_intent == 15)
3603 iftype = WPA_IF_P2P_GO;
3604 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
3605 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3606 "interface for the group");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003607 return -1;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003608 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003609
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003610 if_addr = wpa_s->pending_interface_addr;
3611 } else
3612 if_addr = wpa_s->own_addr;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003613
3614 if (auth) {
3615 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003616 go_intent, if_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07003617 force_freq, persistent_group, ssid) <
3618 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003619 return -1;
3620 return ret;
3621 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003622
3623 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
3624 go_intent, if_addr, force_freq,
Dmitry Shmidt04949592012-07-19 12:16:46 -07003625 persistent_group, ssid) < 0) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003626 if (wpa_s->create_p2p_iface)
3627 wpas_p2p_remove_pending_group_interface(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003628 return -1;
3629 }
3630 return ret;
3631}
3632
3633
3634/**
3635 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
3636 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3637 * @freq: Frequency of the channel in MHz
3638 * @duration: Duration of the stay on the channel in milliseconds
3639 *
3640 * This callback is called when the driver indicates that it has started the
3641 * requested remain-on-channel duration.
3642 */
3643void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3644 unsigned int freq, unsigned int duration)
3645{
3646 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3647 return;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003648 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
3649 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
3650 wpa_s->pending_listen_duration);
3651 wpa_s->pending_listen_freq = 0;
3652 }
3653}
3654
3655
3656static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
3657 unsigned int timeout)
3658{
3659 /* Limit maximum Listen state time based on driver limitation. */
3660 if (timeout > wpa_s->max_remain_on_chan)
3661 timeout = wpa_s->max_remain_on_chan;
3662
3663 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3664 return wpa_drv_p2p_listen(wpa_s, timeout);
3665
3666 return p2p_listen(wpa_s->global->p2p, timeout);
3667}
3668
3669
3670/**
3671 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3672 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3673 * @freq: Frequency of the channel in MHz
3674 *
3675 * This callback is called when the driver indicates that a remain-on-channel
3676 * operation has been completed, i.e., the duration on the requested channel
3677 * has timed out.
3678 */
3679void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3680 unsigned int freq)
3681{
3682 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
3683 "(p2p_long_listen=%d ms pending_action_tx=%p)",
3684 wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003685 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3686 return;
3687 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
3688 return; /* P2P module started a new operation */
3689 if (wpa_s->pending_action_tx)
3690 return;
3691 if (wpa_s->p2p_long_listen > 0)
3692 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
3693 if (wpa_s->p2p_long_listen > 0) {
3694 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
3695 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
3696 }
3697}
3698
3699
3700/**
3701 * wpas_p2p_group_remove - Remove a P2P group
3702 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3703 * @ifname: Network interface name of the group interface or "*" to remove all
3704 * groups
3705 * Returns: 0 on success, -1 on failure
3706 *
3707 * This function is used to remove a P2P group. This can be used to disconnect
3708 * from a group in which the local end is a P2P Client or to end a P2P Group in
3709 * case the local end is the Group Owner. If a virtual network interface was
3710 * created for this group, that interface will be removed. Otherwise, only the
3711 * configured P2P group network will be removed from the interface.
3712 */
3713int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
3714{
3715 struct wpa_global *global = wpa_s->global;
3716
3717 if (os_strcmp(ifname, "*") == 0) {
3718 struct wpa_supplicant *prev;
3719 wpa_s = global->ifaces;
3720 while (wpa_s) {
3721 prev = wpa_s;
3722 wpa_s = wpa_s->next;
3723 wpas_p2p_disconnect(prev);
3724 }
3725 return 0;
3726 }
3727
3728 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3729 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3730 break;
3731 }
3732
3733 return wpas_p2p_disconnect(wpa_s);
3734}
3735
3736
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003737static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
3738 struct p2p_go_neg_results *params,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003739 int freq, int ht40)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003740{
3741 u8 bssid[ETH_ALEN];
3742 int res;
3743
3744 os_memset(params, 0, sizeof(*params));
3745 params->role_go = 1;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003746 params->ht40 = ht40;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003747 if (freq) {
3748 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
3749 "frequency %d MHz", freq);
3750 params->freq = freq;
3751 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
3752 wpa_s->conf->p2p_oper_channel >= 1 &&
3753 wpa_s->conf->p2p_oper_channel <= 11) {
3754 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
3755 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3756 "frequency %d MHz", params->freq);
3757 } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
Jouni Malinen87fd2792011-05-16 18:35:42 +03003758 wpa_s->conf->p2p_oper_reg_class == 124) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003759 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
3760 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3761 "frequency %d MHz", params->freq);
3762 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3763 wpa_s->best_overall_freq > 0 &&
3764 p2p_supported_freq(wpa_s->global->p2p,
3765 wpa_s->best_overall_freq)) {
3766 params->freq = wpa_s->best_overall_freq;
3767 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
3768 "channel %d MHz", params->freq);
3769 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3770 wpa_s->best_24_freq > 0 &&
3771 p2p_supported_freq(wpa_s->global->p2p,
3772 wpa_s->best_24_freq)) {
3773 params->freq = wpa_s->best_24_freq;
3774 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
3775 "channel %d MHz", params->freq);
3776 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3777 wpa_s->best_5_freq > 0 &&
3778 p2p_supported_freq(wpa_s->global->p2p,
3779 wpa_s->best_5_freq)) {
3780 params->freq = wpa_s->best_5_freq;
3781 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
3782 "channel %d MHz", params->freq);
3783 } else {
Dmitry Shmidt04949592012-07-19 12:16:46 -07003784 int chan;
3785 for (chan = 0; chan < 11; chan++) {
3786 params->freq = 2412 + chan * 5;
3787 if (!wpas_p2p_disallowed_freq(wpa_s->global,
3788 params->freq))
3789 break;
3790 }
3791 if (chan == 11) {
3792 wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel "
3793 "allowed");
3794 return -1;
3795 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003796 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
3797 "known)", params->freq);
3798 }
3799
3800 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3801 wpa_s->assoc_freq && !freq) {
3802 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3803 "already using");
3804 params->freq = wpa_s->assoc_freq;
3805 }
3806
3807 res = wpa_drv_shared_freq(wpa_s);
3808 if (res > 0 && !freq) {
3809 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3810 "already using on a shared interface");
3811 params->freq = res;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003812 } else if (res > 0 && freq != res &&
3813 !(wpa_s->drv_flags &
3814 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3815 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz "
3816 "while connected on another channel (%u MHz)",
3817 freq, res);
3818 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003819 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003820
3821 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003822}
3823
3824
3825static struct wpa_supplicant *
3826wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3827 int go)
3828{
3829 struct wpa_supplicant *group_wpa_s;
3830
3831 if (!wpas_p2p_create_iface(wpa_s))
3832 return wpa_s;
3833
3834 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
3835 WPA_IF_P2P_CLIENT) < 0)
3836 return NULL;
3837 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3838 if (group_wpa_s == NULL) {
3839 wpas_p2p_remove_pending_group_interface(wpa_s);
3840 return NULL;
3841 }
3842
3843 return group_wpa_s;
3844}
3845
3846
3847/**
3848 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3849 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3850 * @persistent_group: Whether to create a persistent group
3851 * @freq: Frequency for the group or 0 to indicate no hardcoding
3852 * Returns: 0 on success, -1 on failure
3853 *
3854 * This function creates a new P2P group with the local end as the Group Owner,
3855 * i.e., without using Group Owner Negotiation.
3856 */
3857int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003858 int freq, int ht40)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003859{
3860 struct p2p_go_neg_results params;
3861 unsigned int r;
3862
3863 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3864 return -1;
3865
Dmitry Shmidtdca39792011-09-06 11:17:33 -07003866 /* Make sure we are not running find during connection establishment */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003867 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
Dmitry Shmidtdca39792011-09-06 11:17:33 -07003868 wpas_p2p_stop_find(wpa_s);
Dmitry Shmidtdca39792011-09-06 11:17:33 -07003869
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003870 if (freq == 2) {
3871 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3872 "band");
3873 if (wpa_s->best_24_freq > 0 &&
3874 p2p_supported_freq(wpa_s->global->p2p,
3875 wpa_s->best_24_freq)) {
3876 freq = wpa_s->best_24_freq;
3877 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3878 "channel: %d MHz", freq);
3879 } else {
3880 os_get_random((u8 *) &r, sizeof(r));
3881 freq = 2412 + (r % 3) * 25;
3882 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
3883 "channel: %d MHz", freq);
3884 }
3885 }
3886
3887 if (freq == 5) {
3888 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
3889 "band");
3890 if (wpa_s->best_5_freq > 0 &&
3891 p2p_supported_freq(wpa_s->global->p2p,
3892 wpa_s->best_5_freq)) {
3893 freq = wpa_s->best_5_freq;
3894 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
3895 "channel: %d MHz", freq);
3896 } else {
3897 os_get_random((u8 *) &r, sizeof(r));
3898 freq = 5180 + (r % 4) * 20;
3899 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3900 wpa_printf(MSG_DEBUG, "P2P: Could not select "
3901 "5 GHz channel for P2P group");
3902 return -1;
3903 }
3904 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
3905 "channel: %d MHz", freq);
3906 }
3907 }
3908
3909 if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
3910 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
3911 "(%u MHz) is not supported for P2P uses",
3912 freq);
3913 return -1;
3914 }
3915
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003916 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40))
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08003917 return -1;
Dmitry Shmidt04949592012-07-19 12:16:46 -07003918 if (params.freq &&
3919 !p2p_supported_freq(wpa_s->global->p2p, params.freq)) {
3920 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
3921 "(%u MHz) is not supported for P2P uses",
3922 params.freq);
3923 return -1;
3924 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003925 p2p_go_params(wpa_s->global->p2p, &params);
3926 params.persistent_group = persistent_group;
3927
3928 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
3929 if (wpa_s == NULL)
3930 return -1;
3931 wpas_start_wps_go(wpa_s, &params, 0);
3932
3933 return 0;
3934}
3935
3936
3937static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
3938 struct wpa_ssid *params, int addr_allocated)
3939{
3940 struct wpa_ssid *ssid;
3941
3942 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
3943 if (wpa_s == NULL)
3944 return -1;
3945
3946 wpa_supplicant_ap_deinit(wpa_s);
3947
3948 ssid = wpa_config_add_network(wpa_s->conf);
3949 if (ssid == NULL)
3950 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003951 wpa_config_set_network_defaults(ssid);
3952 ssid->temporary = 1;
3953 ssid->proto = WPA_PROTO_RSN;
3954 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
3955 ssid->group_cipher = WPA_CIPHER_CCMP;
3956 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
3957 ssid->ssid = os_malloc(params->ssid_len);
3958 if (ssid->ssid == NULL) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003959 wpa_config_remove_network(wpa_s->conf, ssid->id);
3960 return -1;
3961 }
3962 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
3963 ssid->ssid_len = params->ssid_len;
3964 ssid->p2p_group = 1;
3965 ssid->export_keys = 1;
3966 if (params->psk_set) {
3967 os_memcpy(ssid->psk, params->psk, 32);
3968 ssid->psk_set = 1;
3969 }
3970 if (params->passphrase)
3971 ssid->passphrase = os_strdup(params->passphrase);
3972
3973 wpa_supplicant_select_network(wpa_s, ssid);
3974
3975 wpa_s->show_group_started = 1;
3976
3977 return 0;
3978}
3979
3980
3981int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
3982 struct wpa_ssid *ssid, int addr_allocated,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07003983 int freq, int ht40)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003984{
3985 struct p2p_go_neg_results params;
3986 int go = 0;
3987
3988 if (ssid->disabled != 2 || ssid->ssid == NULL)
3989 return -1;
3990
3991 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
3992 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
3993 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
3994 "already running");
3995 return 0;
3996 }
3997
3998 /* Make sure we are not running find during connection establishment */
3999 wpas_p2p_stop_find(wpa_s);
4000
Dmitry Shmidt04949592012-07-19 12:16:46 -07004001 wpa_s->p2p_fallback_to_go_neg = 0;
4002
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004003 if (ssid->mode == WPAS_MODE_INFRA)
4004 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
4005
4006 if (ssid->mode != WPAS_MODE_P2P_GO)
4007 return -1;
4008
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07004009 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40))
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004010 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004011
4012 params.role_go = 1;
4013 if (ssid->passphrase == NULL ||
4014 os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
4015 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
4016 "group");
4017 return -1;
4018 }
4019 os_strlcpy(params.passphrase, ssid->passphrase,
4020 sizeof(params.passphrase));
4021 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
4022 params.ssid_len = ssid->ssid_len;
4023 params.persistent_group = 1;
4024
4025 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
4026 if (wpa_s == NULL)
4027 return -1;
4028
4029 wpas_start_wps_go(wpa_s, &params, 0);
4030
4031 return 0;
4032}
4033
4034
4035static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
4036 struct wpabuf *proberesp_ies)
4037{
4038 struct wpa_supplicant *wpa_s = ctx;
4039 if (wpa_s->ap_iface) {
4040 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004041 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
4042 wpabuf_free(beacon_ies);
4043 wpabuf_free(proberesp_ies);
4044 return;
4045 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004046 if (beacon_ies) {
4047 wpabuf_free(hapd->p2p_beacon_ie);
4048 hapd->p2p_beacon_ie = beacon_ies;
4049 }
4050 wpabuf_free(hapd->p2p_probe_resp_ie);
4051 hapd->p2p_probe_resp_ie = proberesp_ies;
4052 } else {
4053 wpabuf_free(beacon_ies);
4054 wpabuf_free(proberesp_ies);
4055 }
4056 wpa_supplicant_ap_update_beacon(wpa_s);
4057}
4058
4059
4060static void wpas_p2p_idle_update(void *ctx, int idle)
4061{
4062 struct wpa_supplicant *wpa_s = ctx;
4063 if (!wpa_s->ap_iface)
4064 return;
4065 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
Dmitry Shmidt04949592012-07-19 12:16:46 -07004066 if (idle)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004067 wpas_p2p_set_group_idle_timeout(wpa_s);
4068 else
4069 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4070}
4071
4072
4073struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
Dmitry Shmidt04949592012-07-19 12:16:46 -07004074 struct wpa_ssid *ssid)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004075{
4076 struct p2p_group *group;
4077 struct p2p_group_config *cfg;
4078
4079 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4080 return NULL;
4081 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4082 return NULL;
4083
4084 cfg = os_zalloc(sizeof(*cfg));
4085 if (cfg == NULL)
4086 return NULL;
4087
Dmitry Shmidt04949592012-07-19 12:16:46 -07004088 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004089 cfg->persistent_group = 2;
Dmitry Shmidt04949592012-07-19 12:16:46 -07004090 else if (ssid->p2p_persistent_group)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004091 cfg->persistent_group = 1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004092 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
4093 if (wpa_s->max_stations &&
4094 wpa_s->max_stations < wpa_s->conf->max_num_sta)
4095 cfg->max_clients = wpa_s->max_stations;
4096 else
4097 cfg->max_clients = wpa_s->conf->max_num_sta;
Dmitry Shmidt04949592012-07-19 12:16:46 -07004098 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
4099 cfg->ssid_len = ssid->ssid_len;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004100 cfg->cb_ctx = wpa_s;
4101 cfg->ie_update = wpas_p2p_ie_update;
4102 cfg->idle_update = wpas_p2p_idle_update;
4103
4104 group = p2p_group_init(wpa_s->global->p2p, cfg);
4105 if (group == NULL)
4106 os_free(cfg);
Dmitry Shmidt04949592012-07-19 12:16:46 -07004107 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004108 p2p_group_notif_formation_done(group);
4109 wpa_s->p2p_group = group;
4110 return group;
4111}
4112
4113
4114void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4115 int registrar)
4116{
Dmitry Shmidt04949592012-07-19 12:16:46 -07004117 struct wpa_ssid *ssid = wpa_s->current_ssid;
4118
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004119 if (!wpa_s->p2p_in_provisioning) {
4120 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
4121 "provisioning not in progress");
4122 return;
4123 }
4124
Dmitry Shmidt04949592012-07-19 12:16:46 -07004125 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4126 u8 go_dev_addr[ETH_ALEN];
4127 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
4128 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4129 ssid->ssid_len);
4130 /* Clear any stored provisioning info */
4131 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
4132 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004133
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004134 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
4135 NULL);
Dmitry Shmidt04949592012-07-19 12:16:46 -07004136 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4137 /*
4138 * Use a separate timeout for initial data connection to
4139 * complete to allow the group to be removed automatically if
4140 * something goes wrong in this step before the P2P group idle
4141 * timeout mechanism is taken into use.
4142 */
4143 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
4144 wpas_p2p_group_formation_timeout,
4145 wpa_s->parent, NULL);
4146 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004147 if (wpa_s->global->p2p)
4148 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
4149 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4150 wpa_drv_wps_success_cb(wpa_s, peer_addr);
4151 wpas_group_formation_completed(wpa_s, 1);
4152}
4153
4154
Jouni Malinen75ecf522011-06-27 15:19:46 -07004155void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
4156 struct wps_event_fail *fail)
4157{
4158 if (!wpa_s->p2p_in_provisioning) {
4159 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
4160 "provisioning not in progress");
4161 return;
4162 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004163
4164 if (wpa_s->go_params) {
4165 p2p_clear_provisioning_info(
4166 wpa_s->global->p2p,
Dmitry Shmidt04949592012-07-19 12:16:46 -07004167 wpa_s->go_params->peer_device_addr);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004168 }
4169
Jouni Malinen75ecf522011-06-27 15:19:46 -07004170 wpas_notify_p2p_wps_failed(wpa_s, fail);
4171}
4172
4173
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004174int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07004175 const char *config_method,
4176 enum wpas_p2p_prov_disc_use use)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004177{
4178 u16 config_methods;
4179
Dmitry Shmidt04949592012-07-19 12:16:46 -07004180 wpa_s->p2p_fallback_to_go_neg = 0;
4181 wpa_s->pending_pd_use = NORMAL_PD;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004182 if (os_strncmp(config_method, "display", 7) == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004183 config_methods = WPS_CONFIG_DISPLAY;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004184 else if (os_strncmp(config_method, "keypad", 6) == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004185 config_methods = WPS_CONFIG_KEYPAD;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004186 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
4187 os_strncmp(config_method, "pushbutton", 10) == 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004188 config_methods = WPS_CONFIG_PUSHBUTTON;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004189 else {
4190 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004191 return -1;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004192 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004193
Dmitry Shmidt04949592012-07-19 12:16:46 -07004194 if (use == WPAS_P2P_PD_AUTO) {
4195 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
4196 wpa_s->pending_pd_config_methods = config_methods;
4197 wpa_s->p2p_auto_pd = 1;
4198 wpa_s->p2p_auto_join = 0;
4199 wpa_s->pending_pd_before_join = 0;
4200 wpa_s->auto_pd_scan_retry = 0;
4201 wpas_p2p_stop_find(wpa_s);
4202 wpa_s->p2p_join_scan_count = 0;
4203 os_get_time(&wpa_s->p2p_auto_started);
4204 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
4205 wpa_s->p2p_auto_started.sec,
4206 wpa_s->p2p_auto_started.usec);
4207 wpas_p2p_join_scan(wpa_s, NULL);
4208 return 0;
4209 }
4210
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004211 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4212 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07004213 config_methods,
4214 use == WPAS_P2P_PD_FOR_JOIN);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004215 }
4216
4217 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
4218 return -1;
4219
4220 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
Dmitry Shmidt04949592012-07-19 12:16:46 -07004221 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
4222 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004223}
4224
4225
4226int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
4227 char *end)
4228{
4229 return p2p_scan_result_text(ies, ies_len, buf, end);
4230}
4231
4232
4233static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
4234{
4235 if (!wpa_s->pending_action_tx)
4236 return;
4237
4238 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
4239 "operation request");
4240 wpabuf_free(wpa_s->pending_action_tx);
4241 wpa_s->pending_action_tx = NULL;
4242}
4243
4244
4245int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
4246 enum p2p_discovery_type type,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004247 unsigned int num_req_dev_types, const u8 *req_dev_types,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07004248 const u8 *dev_id, unsigned int search_delay)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004249{
4250 wpas_p2p_clear_pending_action_tx(wpa_s);
4251 wpa_s->p2p_long_listen = 0;
4252
4253 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4254 return wpa_drv_p2p_find(wpa_s, timeout, type);
4255
Dmitry Shmidt04949592012-07-19 12:16:46 -07004256 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
4257 wpa_s->p2p_in_provisioning)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004258 return -1;
4259
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004260 wpa_supplicant_cancel_sched_scan(wpa_s);
4261
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004262 return p2p_find(wpa_s->global->p2p, timeout, type,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07004263 num_req_dev_types, req_dev_types, dev_id,
4264 search_delay);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004265}
4266
4267
4268void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
4269{
4270 wpas_p2p_clear_pending_action_tx(wpa_s);
4271 wpa_s->p2p_long_listen = 0;
4272 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4273 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004274 wpa_s->p2p_cb_on_scan_complete = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004275
4276 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4277 wpa_drv_p2p_stop_find(wpa_s);
4278 return;
4279 }
4280
4281 if (wpa_s->global->p2p)
4282 p2p_stop_find(wpa_s->global->p2p);
4283
4284 wpas_p2p_remove_pending_group_interface(wpa_s);
4285}
4286
4287
4288static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
4289{
4290 struct wpa_supplicant *wpa_s = eloop_ctx;
4291 wpa_s->p2p_long_listen = 0;
4292}
4293
4294
4295int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
4296{
4297 int res;
4298
4299 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4300 return -1;
4301
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004302 wpa_supplicant_cancel_sched_scan(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004303 wpas_p2p_clear_pending_action_tx(wpa_s);
4304
4305 if (timeout == 0) {
4306 /*
4307 * This is a request for unlimited Listen state. However, at
4308 * least for now, this is mapped to a Listen state for one
4309 * hour.
4310 */
4311 timeout = 3600;
4312 }
4313 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4314 wpa_s->p2p_long_listen = 0;
4315
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004316 /*
4317 * Stop previous find/listen operation to avoid trying to request a new
4318 * remain-on-channel operation while the driver is still running the
4319 * previous one.
4320 */
4321 if (wpa_s->global->p2p)
4322 p2p_stop_find(wpa_s->global->p2p);
4323
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004324 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
4325 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
4326 wpa_s->p2p_long_listen = timeout * 1000;
4327 eloop_register_timeout(timeout, 0,
4328 wpas_p2p_long_listen_timeout,
4329 wpa_s, NULL);
4330 }
4331
4332 return res;
4333}
4334
4335
4336int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
4337 u8 *buf, size_t len, int p2p_group)
4338{
4339 struct wpabuf *p2p_ie;
4340 int ret;
4341
4342 if (wpa_s->global->p2p_disabled)
4343 return -1;
4344 if (wpa_s->global->p2p == NULL)
4345 return -1;
4346 if (bss == NULL)
4347 return -1;
4348
4349 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
4350 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
4351 p2p_group, p2p_ie);
4352 wpabuf_free(p2p_ie);
4353
4354 return ret;
4355}
4356
4357
4358int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004359 const u8 *dst, const u8 *bssid,
Dmitry Shmidt04949592012-07-19 12:16:46 -07004360 const u8 *ie, size_t ie_len, int ssi_signal)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004361{
4362 if (wpa_s->global->p2p_disabled)
4363 return 0;
4364 if (wpa_s->global->p2p == NULL)
4365 return 0;
4366
Dmitry Shmidt04949592012-07-19 12:16:46 -07004367 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
4368 ie, ie_len)) {
4369 case P2P_PREQ_NOT_P2P:
4370 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
4371 ssi_signal);
4372 /* fall through */
4373 case P2P_PREQ_MALFORMED:
4374 case P2P_PREQ_NOT_LISTEN:
4375 case P2P_PREQ_NOT_PROCESSED:
4376 default: /* make gcc happy */
4377 return 0;
4378 case P2P_PREQ_PROCESSED:
4379 return 1;
4380 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004381}
4382
4383
4384void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
4385 const u8 *sa, const u8 *bssid,
4386 u8 category, const u8 *data, size_t len, int freq)
4387{
4388 if (wpa_s->global->p2p_disabled)
4389 return;
4390 if (wpa_s->global->p2p == NULL)
4391 return;
4392
4393 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
4394 freq);
4395}
4396
4397
4398void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
4399{
4400 if (wpa_s->global->p2p_disabled)
4401 return;
4402 if (wpa_s->global->p2p == NULL)
4403 return;
4404
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004405 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004406}
4407
4408
4409void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
4410{
4411 p2p_group_deinit(wpa_s->p2p_group);
4412 wpa_s->p2p_group = NULL;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004413
4414 wpa_s->ap_configured_cb = NULL;
4415 wpa_s->ap_configured_cb_ctx = NULL;
4416 wpa_s->ap_configured_cb_data = NULL;
4417 wpa_s->connect_without_scan = NULL;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004418}
4419
4420
4421int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
4422{
4423 wpa_s->p2p_long_listen = 0;
4424
4425 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4426 return wpa_drv_p2p_reject(wpa_s, addr);
4427
4428 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4429 return -1;
4430
4431 return p2p_reject(wpa_s->global->p2p, addr);
4432}
4433
4434
4435/* Invite to reinvoke a persistent group */
4436int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
Jouni Malinen31be0a42012-08-31 21:20:51 +03004437 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
4438 int ht40)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004439{
4440 enum p2p_invite_role role;
4441 u8 *bssid = NULL;
4442
Jouni Malinen31be0a42012-08-31 21:20:51 +03004443 wpa_s->p2p_persistent_go_freq = freq;
4444 wpa_s->p2p_go_ht40 = !!ht40;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004445 if (ssid->mode == WPAS_MODE_P2P_GO) {
4446 role = P2P_INVITE_ROLE_GO;
4447 if (peer_addr == NULL) {
4448 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
4449 "address in invitation command");
4450 return -1;
4451 }
4452 if (wpas_p2p_create_iface(wpa_s)) {
4453 if (wpas_p2p_add_group_interface(wpa_s,
4454 WPA_IF_P2P_GO) < 0) {
4455 wpa_printf(MSG_ERROR, "P2P: Failed to "
4456 "allocate a new interface for the "
4457 "group");
4458 return -1;
4459 }
4460 bssid = wpa_s->pending_interface_addr;
4461 } else
4462 bssid = wpa_s->own_addr;
4463 } else {
4464 role = P2P_INVITE_ROLE_CLIENT;
4465 peer_addr = ssid->bssid;
4466 }
4467 wpa_s->pending_invite_ssid_id = ssid->id;
4468
4469 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4470 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4471 ssid->ssid, ssid->ssid_len,
4472 go_dev_addr, 1);
4473
4474 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4475 return -1;
4476
4477 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
Jouni Malinen31be0a42012-08-31 21:20:51 +03004478 ssid->ssid, ssid->ssid_len, freq, go_dev_addr, 1);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004479}
4480
4481
4482/* Invite to join an active group */
4483int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
4484 const u8 *peer_addr, const u8 *go_dev_addr)
4485{
4486 struct wpa_global *global = wpa_s->global;
4487 enum p2p_invite_role role;
4488 u8 *bssid = NULL;
4489 struct wpa_ssid *ssid;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004490 int persistent;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004491
Jouni Malinen31be0a42012-08-31 21:20:51 +03004492 wpa_s->p2p_persistent_go_freq = 0;
4493 wpa_s->p2p_go_ht40 = 0;
4494
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004495 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4496 if (os_strcmp(wpa_s->ifname, ifname) == 0)
4497 break;
4498 }
4499 if (wpa_s == NULL) {
4500 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
4501 return -1;
4502 }
4503
4504 ssid = wpa_s->current_ssid;
4505 if (ssid == NULL) {
4506 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
4507 "invitation");
4508 return -1;
4509 }
4510
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004511 persistent = ssid->p2p_persistent_group &&
4512 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
4513 ssid->ssid, ssid->ssid_len);
4514
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004515 if (ssid->mode == WPAS_MODE_P2P_GO) {
4516 role = P2P_INVITE_ROLE_ACTIVE_GO;
4517 bssid = wpa_s->own_addr;
4518 if (go_dev_addr == NULL)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004519 go_dev_addr = wpa_s->global->p2p_dev_addr;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004520 } else {
4521 role = P2P_INVITE_ROLE_CLIENT;
4522 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
4523 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
4524 "invite to current group");
4525 return -1;
4526 }
4527 bssid = wpa_s->bssid;
4528 if (go_dev_addr == NULL &&
4529 !is_zero_ether_addr(wpa_s->go_dev_addr))
4530 go_dev_addr = wpa_s->go_dev_addr;
4531 }
4532 wpa_s->parent->pending_invite_ssid_id = -1;
4533
4534 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4535 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4536 ssid->ssid, ssid->ssid_len,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004537 go_dev_addr, persistent);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004538
4539 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4540 return -1;
4541
4542 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
4543 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08004544 go_dev_addr, persistent);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004545}
4546
4547
4548void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
4549{
4550 struct wpa_ssid *ssid = wpa_s->current_ssid;
4551 const char *ssid_txt;
4552 u8 go_dev_addr[ETH_ALEN];
Jouni Malinen75ecf522011-06-27 15:19:46 -07004553 int network_id = -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004554 int persistent;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004555 int freq;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004556
Dmitry Shmidt04949592012-07-19 12:16:46 -07004557 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
4558 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4559 wpa_s->parent, NULL);
4560 }
4561
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004562 if (!wpa_s->show_group_started || !ssid)
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07004563 goto done;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004564
4565 wpa_s->show_group_started = 0;
4566
4567 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
4568 os_memset(go_dev_addr, 0, ETH_ALEN);
4569 if (ssid->bssid_set)
4570 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
4571 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4572 ssid->ssid_len);
4573 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
4574
4575 if (wpa_s->global->p2p_group_formation == wpa_s)
4576 wpa_s->global->p2p_group_formation = NULL;
4577
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004578 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
4579 (int) wpa_s->assoc_freq;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004580 if (ssid->passphrase == NULL && ssid->psk_set) {
4581 char psk[65];
4582 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
4583 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
4584 "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
4585 MACSTR "%s",
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004586 wpa_s->ifname, ssid_txt, freq, psk,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004587 MAC2STR(go_dev_addr),
4588 persistent ? " [PERSISTENT]" : "");
4589 } else {
4590 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
4591 "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
4592 "go_dev_addr=" MACSTR "%s",
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004593 wpa_s->ifname, ssid_txt, freq,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004594 ssid->passphrase ? ssid->passphrase : "",
4595 MAC2STR(go_dev_addr),
4596 persistent ? " [PERSISTENT]" : "");
4597 }
4598
4599 if (persistent)
Jouni Malinen75ecf522011-06-27 15:19:46 -07004600 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
4601 ssid, go_dev_addr);
4602 if (network_id < 0)
4603 network_id = ssid->id;
4604 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07004605
4606done:
4607 if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
4608 wpa_s->global->p2p != NULL) {
4609 wpa_s->p2p_cb_on_scan_complete = 0;
4610 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
4611 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
4612 "continued after successful connection");
4613 p2p_increase_search_delay(
4614 wpa_s->global->p2p,
4615 wpas_p2p_search_delay(wpa_s));
4616 }
4617 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004618}
4619
4620
4621int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
4622 u32 interval1, u32 duration2, u32 interval2)
4623{
4624 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4625 return -1;
4626 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4627 return -1;
4628
4629 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
4630 wpa_s->current_ssid == NULL ||
4631 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
4632 return -1;
4633
4634 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
4635 wpa_s->own_addr, wpa_s->assoc_freq,
4636 duration1, interval1, duration2, interval2);
4637}
4638
4639
4640int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
4641 unsigned int interval)
4642{
4643 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4644 return -1;
4645
4646 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4647 return -1;
4648
4649 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
4650}
4651
4652
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004653static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
4654{
4655 return wpa_s->current_ssid != NULL &&
4656 wpa_s->current_ssid->p2p_group &&
4657 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
4658}
4659
4660
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004661static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
4662{
4663 struct wpa_supplicant *wpa_s = eloop_ctx;
4664
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004665 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004666 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
4667 "disabled");
4668 return;
4669 }
4670
Dmitry Shmidt04949592012-07-19 12:16:46 -07004671 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
4672 "group");
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07004673 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004674}
4675
4676
4677static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
4678{
Dmitry Shmidt04949592012-07-19 12:16:46 -07004679 int timeout;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004680
Dmitry Shmidt04949592012-07-19 12:16:46 -07004681 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
4682 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
4683
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004684 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
4685 return;
4686
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004687 timeout = wpa_s->conf->p2p_group_idle;
4688 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
4689 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
4690 timeout = P2P_MAX_CLIENT_IDLE;
4691
4692 if (timeout == 0)
4693 return;
4694
Dmitry Shmidt04949592012-07-19 12:16:46 -07004695 if (timeout < 0) {
4696 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
4697 timeout = 0; /* special client mode no-timeout */
4698 else
4699 return;
4700 }
4701
4702 if (wpa_s->p2p_in_provisioning) {
4703 /*
4704 * Use the normal group formation timeout during the
4705 * provisioning phase to avoid terminating this process too
4706 * early due to group idle timeout.
4707 */
4708 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4709 "during provisioning");
4710 return;
4711 }
Dmitry Shmidtad266fb2012-08-24 17:03:35 -07004712#ifndef ANDROID_P2P
Dmitry Shmidt04949592012-07-19 12:16:46 -07004713 if (wpa_s->show_group_started) {
4714 /*
4715 * Use the normal group formation timeout between the end of
4716 * the provisioning phase and completion of 4-way handshake to
4717 * avoid terminating this process too early due to group idle
4718 * timeout.
4719 */
4720 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4721 "while waiting for initial 4-way handshake to "
4722 "complete");
4723 return;
4724 }
Dmitry Shmidtad266fb2012-08-24 17:03:35 -07004725#endif
Dmitry Shmidt04949592012-07-19 12:16:46 -07004726
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004727 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08004728 timeout);
4729 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
4730 wpa_s, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004731}
4732
4733
Jouni Malinen2b89da82012-08-31 22:04:41 +03004734/* Returns 1 if the interface was removed */
4735int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4736 u16 reason_code, const u8 *ie, size_t ie_len,
4737 int locally_generated)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004738{
4739 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
Jouni Malinen2b89da82012-08-31 22:04:41 +03004740 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004741 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
Jouni Malinen2b89da82012-08-31 22:04:41 +03004742 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004743
Dmitry Shmidt04949592012-07-19 12:16:46 -07004744 if (!locally_generated)
4745 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4746 ie_len);
4747
4748 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
4749 wpa_s->current_ssid &&
4750 wpa_s->current_ssid->p2p_group &&
4751 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
4752 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
4753 "session is ending");
Jouni Malinen2b89da82012-08-31 22:04:41 +03004754 if (wpas_p2p_group_delete(wpa_s,
4755 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
4756 > 0)
4757 return 1;
Dmitry Shmidt04949592012-07-19 12:16:46 -07004758 }
Jouni Malinen2b89da82012-08-31 22:04:41 +03004759
4760 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004761}
4762
4763
4764void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
Dmitry Shmidt04949592012-07-19 12:16:46 -07004765 u16 reason_code, const u8 *ie, size_t ie_len,
4766 int locally_generated)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004767{
4768 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4769 return;
4770 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4771 return;
4772
Dmitry Shmidt04949592012-07-19 12:16:46 -07004773 if (!locally_generated)
4774 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4775 ie_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004776}
4777
4778
4779void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
4780{
4781 struct p2p_data *p2p = wpa_s->global->p2p;
4782
4783 if (p2p == NULL)
4784 return;
4785
4786 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4787 return;
4788
4789 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
4790 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
4791
4792 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
4793 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
4794
4795 if (wpa_s->wps &&
4796 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
4797 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
4798
4799 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
4800 p2p_set_uuid(p2p, wpa_s->wps->uuid);
4801
4802 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
4803 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
4804 p2p_set_model_name(p2p, wpa_s->conf->model_name);
4805 p2p_set_model_number(p2p, wpa_s->conf->model_number);
4806 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
4807 }
4808
4809 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
4810 p2p_set_sec_dev_types(p2p,
4811 (void *) wpa_s->conf->sec_device_type,
4812 wpa_s->conf->num_sec_device_types);
4813
4814 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
4815 int i;
4816 p2p_remove_wps_vendor_extensions(p2p);
4817 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4818 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4819 continue;
4820 p2p_add_wps_vendor_extension(
4821 p2p, wpa_s->conf->wps_vendor_ext[i]);
4822 }
4823 }
4824
4825 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
4826 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4827 char country[3];
4828 country[0] = wpa_s->conf->country[0];
4829 country[1] = wpa_s->conf->country[1];
4830 country[2] = 0x04;
4831 p2p_set_country(p2p, country);
4832 }
4833
4834 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
4835 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
4836 wpa_s->conf->p2p_ssid_postfix ?
4837 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
4838 0);
4839 }
4840
4841 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
4842 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
Jouni Malinen75ecf522011-06-27 15:19:46 -07004843
4844 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
4845 u8 reg_class, channel;
4846 int ret;
4847 unsigned int r;
4848 if (wpa_s->conf->p2p_listen_reg_class &&
4849 wpa_s->conf->p2p_listen_channel) {
4850 reg_class = wpa_s->conf->p2p_listen_reg_class;
4851 channel = wpa_s->conf->p2p_listen_channel;
4852 } else {
4853 reg_class = 81;
4854 /*
4855 * Pick one of the social channels randomly as the
4856 * listen channel.
4857 */
4858 os_get_random((u8 *) &r, sizeof(r));
4859 channel = 1 + (r % 3) * 5;
4860 }
4861 ret = p2p_set_listen_channel(p2p, reg_class, channel);
4862 if (ret)
4863 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
4864 "failed: %d", ret);
4865 }
4866 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
4867 u8 op_reg_class, op_channel, cfg_op_channel;
4868 int ret = 0;
4869 unsigned int r;
4870 if (wpa_s->conf->p2p_oper_reg_class &&
4871 wpa_s->conf->p2p_oper_channel) {
4872 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
4873 op_channel = wpa_s->conf->p2p_oper_channel;
4874 cfg_op_channel = 1;
4875 } else {
4876 op_reg_class = 81;
4877 /*
4878 * Use random operation channel from (1, 6, 11)
4879 *if no other preference is indicated.
4880 */
4881 os_get_random((u8 *) &r, sizeof(r));
4882 op_channel = 1 + (r % 3) * 5;
4883 cfg_op_channel = 0;
4884 }
4885 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
4886 cfg_op_channel);
4887 if (ret)
4888 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
4889 "failed: %d", ret);
4890 }
Dmitry Shmidt04949592012-07-19 12:16:46 -07004891
4892 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
4893 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
4894 wpa_s->conf->p2p_pref_chan) < 0) {
4895 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
4896 "update failed");
4897 }
4898 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004899}
4900
4901
4902int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
4903 int duration)
4904{
4905 if (!wpa_s->ap_iface)
4906 return -1;
4907 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
4908 duration);
4909}
4910
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004911
4912int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
4913{
4914 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4915 return -1;
4916 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4917 return -1;
4918
4919 wpa_s->global->cross_connection = enabled;
4920 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
4921
4922 if (!enabled) {
4923 struct wpa_supplicant *iface;
4924
4925 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
4926 {
4927 if (iface->cross_connect_enabled == 0)
4928 continue;
4929
4930 iface->cross_connect_enabled = 0;
4931 iface->cross_connect_in_use = 0;
4932 wpa_msg(iface->parent, MSG_INFO,
4933 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4934 iface->ifname, iface->cross_connect_uplink);
4935 }
4936 }
4937
4938 return 0;
4939}
4940
4941
4942static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
4943{
4944 struct wpa_supplicant *iface;
4945
4946 if (!uplink->global->cross_connection)
4947 return;
4948
4949 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4950 if (!iface->cross_connect_enabled)
4951 continue;
4952 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4953 0)
4954 continue;
4955 if (iface->ap_iface == NULL)
4956 continue;
4957 if (iface->cross_connect_in_use)
4958 continue;
4959
4960 iface->cross_connect_in_use = 1;
4961 wpa_msg(iface->parent, MSG_INFO,
4962 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
4963 iface->ifname, iface->cross_connect_uplink);
4964 }
4965}
4966
4967
4968static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
4969{
4970 struct wpa_supplicant *iface;
4971
4972 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
4973 if (!iface->cross_connect_enabled)
4974 continue;
4975 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
4976 0)
4977 continue;
4978 if (!iface->cross_connect_in_use)
4979 continue;
4980
4981 wpa_msg(iface->parent, MSG_INFO,
4982 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
4983 iface->ifname, iface->cross_connect_uplink);
4984 iface->cross_connect_in_use = 0;
4985 }
4986}
4987
4988
4989void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
4990{
4991 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
4992 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
4993 wpa_s->cross_connect_disallowed)
4994 wpas_p2p_disable_cross_connect(wpa_s);
4995 else
4996 wpas_p2p_enable_cross_connect(wpa_s);
Dmitry Shmidt04949592012-07-19 12:16:46 -07004997 if (!wpa_s->ap_iface &&
4998 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
4999 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07005000}
5001
5002
5003void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
5004{
5005 wpas_p2p_disable_cross_connect(wpa_s);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08005006 if (!wpa_s->ap_iface &&
5007 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
5008 wpa_s, NULL))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07005009 wpas_p2p_set_group_idle_timeout(wpa_s);
5010}
5011
5012
5013static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
5014{
5015 struct wpa_supplicant *iface;
5016
5017 if (!wpa_s->global->cross_connection)
5018 return;
5019
5020 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
5021 if (iface == wpa_s)
5022 continue;
5023 if (iface->drv_flags &
5024 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
5025 continue;
5026 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
5027 continue;
5028
5029 wpa_s->cross_connect_enabled = 1;
5030 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
5031 sizeof(wpa_s->cross_connect_uplink));
5032 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
5033 "%s to %s whenever uplink is available",
5034 wpa_s->ifname, wpa_s->cross_connect_uplink);
5035
5036 if (iface->ap_iface || iface->current_ssid == NULL ||
5037 iface->current_ssid->mode != WPAS_MODE_INFRA ||
5038 iface->cross_connect_disallowed ||
5039 iface->wpa_state != WPA_COMPLETED)
5040 break;
5041
5042 wpa_s->cross_connect_in_use = 1;
5043 wpa_msg(wpa_s->parent, MSG_INFO,
5044 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
5045 wpa_s->ifname, wpa_s->cross_connect_uplink);
5046 break;
5047 }
5048}
5049
5050
5051int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
5052{
5053 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
5054 !wpa_s->p2p_in_provisioning)
5055 return 0; /* not P2P client operation */
5056
5057 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
5058 "session overlap");
5059 if (wpa_s != wpa_s->parent)
5060 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
5061
5062 if (wpa_s->global->p2p)
5063 p2p_group_formation_failed(wpa_s->global->p2p);
5064
5065 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5066 wpa_s->parent, NULL);
5067
5068 wpas_group_formation_completed(wpa_s, 0);
5069 return 1;
5070}
5071
5072
5073void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
5074{
5075 struct p2p_channels chan;
5076
5077 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
5078 return;
5079
5080 os_memset(&chan, 0, sizeof(chan));
5081 if (wpas_p2p_setup_channels(wpa_s, &chan)) {
5082 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
5083 "channel list");
5084 return;
5085 }
5086
5087 p2p_update_channel_list(wpa_s->global->p2p, &chan);
5088}
5089
5090
5091int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
5092{
5093 struct wpa_global *global = wpa_s->global;
5094 int found = 0;
5095 const u8 *peer;
5096
5097 if (global->p2p == NULL)
5098 return -1;
5099
5100 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
5101
5102 if (wpa_s->pending_interface_name[0] &&
5103 !is_zero_ether_addr(wpa_s->pending_interface_addr))
5104 found = 1;
5105
5106 peer = p2p_get_go_neg_peer(global->p2p);
5107 if (peer) {
5108 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
5109 MACSTR, MAC2STR(peer));
5110 p2p_unauthorize(global->p2p, peer);
Dmitry Shmidt04949592012-07-19 12:16:46 -07005111 found = 1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07005112 }
5113
5114 wpas_p2p_stop_find(wpa_s);
5115
5116 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5117 if (wpa_s == global->p2p_group_formation &&
5118 (wpa_s->p2p_in_provisioning ||
5119 wpa_s->parent->pending_interface_type ==
5120 WPA_IF_P2P_CLIENT)) {
5121 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
5122 "formation found - cancelling",
5123 wpa_s->ifname);
5124 found = 1;
5125 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5126 wpa_s->parent, NULL);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07005127 wpas_p2p_group_delete(wpa_s,
5128 P2P_GROUP_REMOVAL_REQUESTED);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07005129 break;
5130 }
5131 }
5132
5133 if (!found) {
5134 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
5135 return -1;
5136 }
5137
5138 return 0;
5139}
5140
5141
5142void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
5143{
5144 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
5145 return;
5146
5147 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
5148 "being available anymore");
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07005149 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07005150}
5151
5152
5153void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
5154 int freq_24, int freq_5, int freq_overall)
5155{
5156 struct p2p_data *p2p = wpa_s->global->p2p;
5157 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5158 return;
5159 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
5160}
5161
5162
5163int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
5164{
5165 u8 peer[ETH_ALEN];
5166 struct p2p_data *p2p = wpa_s->global->p2p;
5167
5168 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5169 return -1;
5170
5171 if (hwaddr_aton(addr, peer))
5172 return -1;
5173
5174 return p2p_unauthorize(p2p, peer);
5175}
5176
5177
5178/**
5179 * wpas_p2p_disconnect - Disconnect from a P2P Group
5180 * @wpa_s: Pointer to wpa_supplicant data
5181 * Returns: 0 on success, -1 on failure
5182 *
5183 * This can be used to disconnect from a group in which the local end is a P2P
5184 * Client or to end a P2P Group in case the local end is the Group Owner. If a
5185 * virtual network interface was created for this group, that interface will be
5186 * removed. Otherwise, only the configured P2P group network will be removed
5187 * from the interface.
5188 */
5189int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
5190{
5191
5192 if (wpa_s == NULL)
5193 return -1;
5194
Jouni Malinen2b89da82012-08-31 22:04:41 +03005195 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
5196 -1 : 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07005197}
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08005198
5199
5200int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
5201{
Dmitry Shmidt4b86ea52012-09-04 11:06:50 -07005202#ifdef ANDROID_P2P
5203 struct wpa_supplicant *group = wpa_s;
5204#endif
5205
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08005206 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5207 return 0;
5208
Dmitry Shmidt4b86ea52012-09-04 11:06:50 -07005209#ifdef ANDROID_P2P
5210 while (group && (group->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)) {
5211 if(group->wpa_state == WPA_ASSOCIATED) {
5212 /* WPA_ASSOCIATED hasn't moved to WPA_COMPLETED. So it could be in WPS
5213 * or 4Way Hanshake phase. Avoid allowing scan during this time critical
5214 * phase
5215 */
5216 wpa_printf(MSG_ERROR, "P2P: WPS/4way handshake in Progress."
5217 " Defer SCAN ");
5218 return 1;
5219 }
5220 group = group->next;
5221 }
5222#endif
5223
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08005224 return p2p_in_progress(wpa_s->global->p2p);
5225}
5226
5227
5228void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
5229 struct wpa_ssid *ssid)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08005230{
5231 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
5232 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5233 wpa_s->parent, NULL) > 0) {
Dmitry Shmidt04949592012-07-19 12:16:46 -07005234 /**
5235 * Remove the network by scheduling the group formation
5236 * timeout to happen immediately. The teardown code
5237 * needs to be scheduled to run asynch later so that we
5238 * don't delete data from under ourselves unexpectedly.
5239 * Calling wpas_p2p_group_formation_timeout directly
5240 * causes a series of crashes in WPS failure scenarios.
5241 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08005242 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
5243 "P2P group network getting removed");
Dmitry Shmidt04949592012-07-19 12:16:46 -07005244 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
5245 wpa_s->parent, NULL);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08005246 }
5247}
5248
5249
5250struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005251 const u8 *addr, const u8 *ssid,
5252 size_t ssid_len)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08005253{
5254 struct wpa_ssid *s;
5255 size_t i;
5256
5257 for (s = wpa_s->conf->ssid; s; s = s->next) {
5258 if (s->disabled != 2)
5259 continue;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005260 if (ssid &&
5261 (ssid_len != s->ssid_len ||
5262 os_memcmp(ssid, s->ssid, ssid_len) != 0))
5263 continue;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08005264 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
5265 return s; /* peer is GO in the persistent group */
5266 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
5267 continue;
5268 for (i = 0; i < s->num_p2p_clients; i++) {
5269 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
5270 addr, ETH_ALEN) == 0)
5271 return s; /* peer is P2P client in persistent
5272 * group */
5273 }
5274 }
5275
5276 return NULL;
5277}
5278
5279
5280void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
5281 const u8 *addr)
5282{
5283 if (addr == NULL)
5284 return;
5285 wpas_p2p_add_persistent_group_client(wpa_s, addr);
5286}
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005287
Dmitry Shmidt04949592012-07-19 12:16:46 -07005288
5289static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
5290 int group_added)
5291{
5292 struct wpa_supplicant *group = wpa_s;
5293 eloop_cancel_timeout(wpas_p2p_pd_before_join_timeout, wpa_s, NULL);
5294 if (wpa_s->global->p2p_group_formation)
5295 group = wpa_s->global->p2p_group_formation;
5296 wpa_s = wpa_s->parent;
5297 offchannel_send_action_done(wpa_s);
5298 if (group_added)
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07005299 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
Dmitry Shmidt04949592012-07-19 12:16:46 -07005300 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
5301 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
5302 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
5303 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
5304 wpa_s->p2p_persistent_id,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07005305 wpa_s->p2p_pd_before_go_neg,
5306 wpa_s->p2p_go_ht40);
Dmitry Shmidt04949592012-07-19 12:16:46 -07005307}
5308
5309
5310int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
5311{
5312 if (!wpa_s->p2p_fallback_to_go_neg ||
5313 wpa_s->p2p_in_provisioning <= 5)
5314 return 0;
5315
5316 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
5317 return 0; /* peer operating as a GO */
5318
5319 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
5320 "fallback to GO Negotiation");
5321 wpas_p2p_fallback_to_go_neg(wpa_s, 1);
5322
5323 return 1;
5324}
5325
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07005326
5327unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
5328{
5329 const char *rn, *rn2;
5330 struct wpa_supplicant *ifs;
5331
5332 if (wpa_s->wpa_state > WPA_SCANNING) {
5333 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
5334 "concurrent operation",
5335 P2P_CONCURRENT_SEARCH_DELAY);
5336 return P2P_CONCURRENT_SEARCH_DELAY;
5337 }
5338
5339 if (!wpa_s->driver->get_radio_name)
5340 return 0;
5341 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
5342 if (rn == NULL || rn[0] == '\0')
5343 return 0;
5344
5345 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
5346 if (ifs == wpa_s || !ifs->driver->get_radio_name)
5347 continue;
5348
5349 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
5350 if (!rn2 || os_strcmp(rn, rn2) != 0)
5351 continue;
5352 if (ifs->wpa_state > WPA_SCANNING) {
5353 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
5354 "delay due to concurrent operation on "
5355 "interface %s",
5356 P2P_CONCURRENT_SEARCH_DELAY, ifs->ifname);
5357 return P2P_CONCURRENT_SEARCH_DELAY;
5358 }
5359 }
5360
5361 return 0;
5362}
5363
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005364#ifdef ANDROID_P2P
5365int wpas_p2p_handle_frequency_conflicts(struct wpa_supplicant *wpa_s, int freq)
5366{
5367 struct wpa_supplicant *iface = NULL;
5368 struct p2p_data *p2p = wpa_s->global->p2p;
5369
5370 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
5371 if((iface->p2p_group_interface) && (iface->current_ssid) &&
5372 (iface->current_ssid->frequency != freq)) {
5373
5374 if (iface->p2p_group_interface == P2P_GROUP_INTERFACE_GO) {
5375 /* Try to see whether we can move the GO. If it
5376 * is not possible, remove the GO interface
5377 */
5378 if(wpa_drv_switch_channel(iface, freq) == 0) {
5379 wpa_printf(MSG_ERROR, "P2P: GO Moved to freq(%d)", freq);
5380 iface->current_ssid->frequency = freq;
5381 continue;
5382 }
5383 }
5384
5385 /* If GO cannot be moved or if the conflicting interface is a
5386 * P2P Client, remove the interface depending up on the connection
5387 * priority */
Dmitry Shmidt687922c2012-03-26 14:02:32 -07005388 if(!wpas_is_p2p_prioritized(wpa_s)) {
5389 /* STA connection has priority over existing
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005390 * P2P connection. So remove the interface */
Dmitry Shmidt687922c2012-03-26 14:02:32 -07005391 wpa_printf(MSG_DEBUG, "P2P: Removing P2P connection due to Single channel"
5392 "concurrent mode frequency conflict");
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07005393 wpas_p2p_group_delete(iface, P2P_GROUP_REMOVAL_FREQ_CONFLICT);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005394 } else {
5395 /* Existing connection has the priority. Disable the newly
5396 * selected network and let the application know about it.
5397 */
5398 return -1;
5399 }
5400 }
5401 }
5402 return 0;
5403}
5404#endif