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WPS UPnP: Add more debug for event subscription
[thirdparty/hostap.git] / wpa_supplicant / p2p_supplicant.c
CommitLineData
b22128ef
JM		 1/*
2 * wpa_supplicant - P2P
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#include "includes.h"
16
17#include "common.h"
18#include "eloop.h"
19#include "common/ieee802_11_common.h"
20#include "common/ieee802_11_defs.h"
21#include "common/wpa_ctrl.h"
22#include "wps/wps_i.h"
23#include "p2p/p2p.h"
24#include "ap/hostapd.h"
aefb53bd 25#include "ap/p2p_hostapd.h"
b22128ef
JM		 26#include "wpa_supplicant_i.h"
27#include "driver_i.h"
28#include "ap.h"
29#include "config_ssid.h"
30#include "config.h"
31#include "mlme.h"
32#include "notify.h"
33#include "scan.h"
34#include "bss.h"
35#include "wps_supplicant.h"
36#include "p2p_supplicant.h"
37
38
39static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
40static struct wpa_supplicant *
41wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
42 int go);
43static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
ef922c4a 44static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
108def93
JM		 45static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
46 const u8 *dev_addr, enum p2p_wps_method wps_method);
b22128ef 47static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
72044390 48static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
b22128ef
JM		 49
50
51static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
52 struct wpa_scan_results *scan_res)
53{
54 size_t i;
55
56 if (wpa_s->global->p2p_disabled)
57 return;
58
59 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
60 (int) scan_res->num);
61
62 for (i = 0; i < scan_res->num; i++) {
63 struct wpa_scan_res *bss = scan_res->res[i];
64 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
65 bss->freq, bss->level,
66 (const u8 *) (bss + 1),
67 bss->ie_len) > 0)
68 return;
69 }
70
71 p2p_scan_res_handled(wpa_s->global->p2p);
72}
73
74
75static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq)
76{
77 struct wpa_supplicant *wpa_s = ctx;
78 struct wpa_driver_scan_params params;
79 int ret;
80 struct wpabuf *wps_ie, *ies;
81 int social_channels[] = { 2412, 2437, 2462, 0, 0 };
82
83 os_memset(&params, 0, sizeof(params));
84
85 /* P2P Wildcard SSID */
86 params.num_ssids = 1;
87 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
88 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
89
90 wpa_s->wps->dev.p2p = 1;
91 wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
92 WPS_REQ_ENROLLEE);
93 if (wps_ie == NULL)
94 return -1;
95
96 ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
97 if (ies == NULL) {
98 wpabuf_free(wps_ie);
99 return -1;
100 }
101 wpabuf_put_buf(ies, wps_ie);
102 wpabuf_free(wps_ie);
103
104 p2p_scan_ie(wpa_s->global->p2p, ies);
105
106 params.extra_ies = wpabuf_head(ies);
107 params.extra_ies_len = wpabuf_len(ies);
108
109 switch (type) {
110 case P2P_SCAN_SOCIAL:
111 params.freqs = social_channels;
112 break;
113 case P2P_SCAN_FULL:
114 break;
115 case P2P_SCAN_SPECIFIC:
116 social_channels[0] = freq;
117 social_channels[1] = 0;
118 params.freqs = social_channels;
119 break;
120 case P2P_SCAN_SOCIAL_PLUS_ONE:
121 social_channels[3] = freq;
122 params.freqs = social_channels;
123 break;
124 }
125
126 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
127 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
128 ret = ieee80211_sta_req_scan(wpa_s, &params);
129 else
130 ret = wpa_drv_scan(wpa_s, &params);
131
132 wpabuf_free(ies);
133
134 return ret;
135}
136
137
138#ifdef CONFIG_CLIENT_MLME
139static void p2p_rx_action_mlme(void *ctx, const u8 *buf, size_t len, int freq)
140{
141 struct wpa_supplicant *wpa_s = ctx;
142 const struct ieee80211_mgmt *mgmt;
143 size_t hdr_len;
144
145 if (wpa_s->global->p2p_disabled)
146 return;
147 mgmt = (const struct ieee80211_mgmt *) buf;
148 hdr_len = (const u8 *) &mgmt->u.action.u.vs_public_action.action - buf;
149 if (hdr_len > len)
150 return;
151 p2p_rx_action(wpa_s->global->p2p, mgmt->da, mgmt->sa, mgmt->bssid,
152 mgmt->u.action.category,
153 &mgmt->u.action.u.vs_public_action.action,
154 len - hdr_len, freq);
155}
156#endif /* CONFIG_CLIENT_MLME */
157
158
159static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
160{
161 switch (p2p_group_interface) {
162 case P2P_GROUP_INTERFACE_PENDING:
163 return WPA_IF_P2P_GROUP;
164 case P2P_GROUP_INTERFACE_GO:
165 return WPA_IF_P2P_GO;
166 case P2P_GROUP_INTERFACE_CLIENT:
167 return WPA_IF_P2P_CLIENT;
168 }
169
170 return WPA_IF_P2P_GROUP;
171}
172
173
174static void wpas_p2p_group_delete(struct wpa_supplicant *wpa_s)
175{
176 struct wpa_ssid *ssid;
177 char *gtype;
178
179 ssid = wpa_s->current_ssid;
180 if (ssid == NULL) {
181 /*
182 * The current SSID was not known, but there may still be a
183 * pending P2P group interface waiting for provisioning.
184 */
185 ssid = wpa_s->conf->ssid;
186 while (ssid) {
187 if (ssid->p2p_group &&
188 (ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
189 (ssid->key_mgmt & WPA_KEY_MGMT_WPS)))
190 break;
191 ssid = ssid->next;
192 }
193 }
194 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
195 gtype = "GO";
196 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
197 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
198 wpa_s->reassociate = 0;
199 wpa_s->disconnected = 1;
200 wpa_supplicant_deauthenticate(wpa_s,
201 WLAN_REASON_DEAUTH_LEAVING);
202 gtype = "client";
203 } else
204 gtype = "GO";
72044390
JM		 205 if (wpa_s->cross_connect_in_use) {
206 wpa_s->cross_connect_in_use = 0;
207 wpa_msg(wpa_s->parent, MSG_INFO,
208 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
209 wpa_s->ifname, wpa_s->cross_connect_uplink);
210 }
b22128ef
JM		 211 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_REMOVED "%s %s",
212 wpa_s->ifname, gtype);
213 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
214 struct wpa_global *global;
215 char *ifname;
216 enum wpa_driver_if_type type;
217 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
218 wpa_s->ifname);
219 global = wpa_s->global;
220 ifname = os_strdup(wpa_s->ifname);
221 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
222 wpa_supplicant_remove_iface(wpa_s->global, wpa_s);
223 wpa_s = global->ifaces;
224 if (wpa_s && ifname)
225 wpa_drv_if_remove(wpa_s, type, ifname);
226 os_free(ifname);
227 return;
228 }
229
230 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
231 if (ssid && (ssid->p2p_group ||
232 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
233 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
234 int id = ssid->id;
235 if (ssid == wpa_s->current_ssid)
236 wpa_s->current_ssid = NULL;
237 wpas_notify_network_removed(wpa_s, ssid);
238 wpa_config_remove_network(wpa_s->conf, id);
239 wpa_supplicant_clear_status(wpa_s);
240 } else {
241 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
242 "found");
243 }
244 wpa_supplicant_ap_deinit(wpa_s);
245}
246
247
248static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
249 u8 *go_dev_addr,
250 const u8 *ssid, size_t ssid_len)
251{
252 struct wpa_bss *bss;
253 const u8 *bssid;
254 struct wpabuf *p2p;
255 u8 group_capab;
256 const u8 *addr;
257
258 if (wpa_s->go_params)
259 bssid = wpa_s->go_params->peer_interface_addr;
260 else
261 bssid = wpa_s->bssid;
262
263 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
264 if (bss == NULL) {
265 u8 iface_addr[ETH_ALEN];
266 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
267 iface_addr) == 0)
268 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
269 }
270 if (bss == NULL) {
271 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
272 "group is persistent - BSS " MACSTR " not found",
273 MAC2STR(bssid));
274 return 0;
275 }
276
277 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
278 if (p2p == NULL) {
279 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
280 "group is persistent - BSS " MACSTR
281 " did not include P2P IE", MAC2STR(bssid));
282 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
283 (u8 *) (bss + 1), bss->ie_len);
284 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
285 ((u8 *) bss + 1) + bss->ie_len,
286 bss->beacon_ie_len);
287 return 0;
288 }
289
290 group_capab = p2p_get_group_capab(p2p);
291 addr = p2p_get_go_dev_addr(p2p);
292 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
293 "group_capab=0x%x", group_capab);
294 if (addr) {
295 os_memcpy(go_dev_addr, addr, ETH_ALEN);
296 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
297 MAC2STR(addr));
298 } else
299 os_memset(go_dev_addr, 0, ETH_ALEN);
300 wpabuf_free(p2p);
301
302 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
303 "go_dev_addr=" MACSTR,
304 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
305
306 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
307}
308
309
310static void wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
311 struct wpa_ssid *ssid,
312 const u8 *go_dev_addr)
313{
314 struct wpa_ssid *s;
315 int changed = 0;
316
317 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
318 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
319 for (s = wpa_s->conf->ssid; s; s = s->next) {
320 if (s->disabled == 2 &&
321 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
322 s->ssid_len == ssid->ssid_len &&
323 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
324 break;
325 }
326
327 if (s) {
328 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
329 "entry");
330 if (ssid->passphrase && !s->passphrase)
331 changed = 1;
332 else if (ssid->passphrase && s->passphrase &&
333 os_strcmp(ssid->passphrase, s->passphrase) != 0)
334 changed = 1;
335 } else {
336 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
337 "entry");
338 changed = 1;
339 s = wpa_config_add_network(wpa_s->conf);
340 if (s == NULL)
341 return;
342 wpa_config_set_network_defaults(s);
343 }
344
345 s->p2p_group = 1;
346 s->p2p_persistent_group = 1;
347 s->disabled = 2;
348 s->bssid_set = 1;
349 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
350 s->mode = ssid->mode;
351 s->auth_alg = WPA_AUTH_ALG_OPEN;
352 s->key_mgmt = WPA_KEY_MGMT_PSK;
353 s->proto = WPA_PROTO_RSN;
354 s->pairwise_cipher = WPA_CIPHER_CCMP;
355 if (ssid->passphrase) {
356 os_free(s->passphrase);
357 s->passphrase = os_strdup(ssid->passphrase);
358 }
359 if (ssid->psk_set) {
360 s->psk_set = 1;
361 os_memcpy(s->psk, ssid->psk, 32);
362 }
363 if (s->passphrase && !s->psk_set)
364 wpa_config_update_psk(s);
365 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
366 os_free(s->ssid);
367 s->ssid = os_malloc(ssid->ssid_len);
368 }
369 if (s->ssid) {
370 s->ssid_len = ssid->ssid_len;
371 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
372 }
373
374#ifndef CONFIG_NO_CONFIG_WRITE
375 if (changed && wpa_s->conf->update_config &&
376 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
377 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
378 }
379#endif /* CONFIG_NO_CONFIG_WRITE */
380}
381
382
383static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
384 int success)
385{
386 struct wpa_ssid *ssid;
387 const char *ssid_txt;
388 int client;
389 int persistent;
390 u8 go_dev_addr[ETH_ALEN];
391
392 /*
393 * This callback is likely called for the main interface. Update wpa_s
394 * to use the group interface if a new interface was created for the
395 * group.
396 */
397 if (wpa_s->global->p2p_group_formation)
398 wpa_s = wpa_s->global->p2p_group_formation;
399 wpa_s->p2p_in_provisioning = 0;
400
401 if (!success) {
402 wpa_msg(wpa_s->parent, MSG_INFO,
403 P2P_EVENT_GROUP_FORMATION_FAILURE);
404 wpas_p2p_group_delete(wpa_s);
405 return;
406 }
407
408 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
409
410 ssid = wpa_s->current_ssid;
411 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
412 ssid->mode = WPAS_MODE_P2P_GO;
413 p2p_group_notif_formation_done(wpa_s->p2p_group);
414 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
415 }
416
417 persistent = 0;
418 if (ssid) {
419 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
420 client = ssid->mode == WPAS_MODE_INFRA;
421 if (ssid->mode == WPAS_MODE_P2P_GO) {
422 persistent = ssid->p2p_persistent_group;
423 os_memcpy(go_dev_addr, wpa_s->parent->own_addr,
424 ETH_ALEN);
425 } else
426 persistent = wpas_p2p_persistent_group(wpa_s,
427 go_dev_addr,
428 ssid->ssid,
429 ssid->ssid_len);
430 } else {
431 ssid_txt = "";
432 client = wpa_s->p2p_group_interface ==
433 P2P_GROUP_INTERFACE_CLIENT;
434 }
435
436 wpa_s->show_group_started = 0;
437 if (client) {
438 /*
439 * Indicate event only after successfully completed 4-way
440 * handshake, i.e., when the interface is ready for data
441 * packets.
442 */
443 wpa_s->show_group_started = 1;
444 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
445 char psk[65];
446 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
447 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 448 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
449 "%s",
450 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
451 MAC2STR(go_dev_addr),
b22128ef 452 persistent ? " [PERSISTENT]" : "");
72044390 453 wpas_p2p_cross_connect_setup(wpa_s);
b22128ef
JM		 454 } else {
455 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 456 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
457 "go_dev_addr=" MACSTR "%s",
458 wpa_s->ifname, ssid_txt, ssid->frequency,
b22128ef
JM		 459 ssid && ssid->passphrase ? ssid->passphrase : "",
460 MAC2STR(go_dev_addr),
461 persistent ? " [PERSISTENT]" : "");
72044390 462 wpas_p2p_cross_connect_setup(wpa_s);
b22128ef
JM		 463 }
464
465 if (persistent)
466 wpas_p2p_store_persistent_group(wpa_s->parent, ssid,
467 go_dev_addr);
468}
469
470
471static void wpas_send_action_cb(void *eloop_ctx, void *timeout_ctx)
472{
473 struct wpa_supplicant *wpa_s = eloop_ctx;
474 struct wpa_supplicant *iface;
475 int res;
476 int without_roc;
477
478 without_roc = wpa_s->pending_action_without_roc;
479 wpa_s->pending_action_without_roc = 0;
ab218b7c
JM		 480 wpa_printf(MSG_DEBUG, "P2P: Send Action callback (without_roc=%d "
481 "pending_action_tx=%p)",
482 without_roc, wpa_s->pending_action_tx);
b22128ef
JM		 483
484 if (wpa_s->pending_action_tx == NULL)
485 return;
486
487 if (wpa_s->off_channel_freq != wpa_s->pending_action_freq &&
488 wpa_s->pending_action_freq != 0) {
489 wpa_printf(MSG_DEBUG, "P2P: Pending Action frame TX "
490 "waiting for another freq=%u (off_channel_freq=%u)",
491 wpa_s->pending_action_freq,
492 wpa_s->off_channel_freq);
493 if (without_roc && wpa_s->off_channel_freq == 0) {
494 /*
495 * We may get here if wpas_send_action() found us to be
496 * on the correct channel, but remain-on-channel cancel
497 * event was received before getting here.
498 */
499 wpa_printf(MSG_DEBUG, "P2P: Schedule "
500 "remain-on-channel to send Action frame");
501 if (wpa_drv_remain_on_channel(
502 wpa_s, wpa_s->pending_action_freq, 200) <
503 0) {
504 wpa_printf(MSG_DEBUG, "P2P: Failed to request "
505 "driver to remain on channel (%u "
506 "MHz) for Action Frame TX",
507 wpa_s->pending_action_freq);
07a30a66
JM		 508 } else
509 wpa_s->roc_waiting_drv_freq =
510 wpa_s->pending_action_freq;
b22128ef
JM		 511 }
512 return;
513 }
514
515 /*
516 * This call is likely going to be on the P2P device instance if the
517 * driver uses a separate interface for that purpose. However, some
518 * Action frames are actually sent within a P2P Group and when that is
519 * the case, we need to follow power saving (e.g., GO buffering the
d6ae9950 520 * frame for a client in PS mode or a client following the advertised
b22128ef
JM		 521 * NoA from its GO). To make that easier for the driver, select the
522 * correct group interface here.
523 */
524 if (os_memcmp(wpa_s->pending_action_src, wpa_s->own_addr, ETH_ALEN) !=
525 0) {
526 /*
527 * Try to find a group interface that matches with the source
528 * address.
529 */
530 iface = wpa_s->global->ifaces;
531 while (iface) {
532 if (os_memcmp(wpa_s->pending_action_src,
533 iface->own_addr, ETH_ALEN) == 0)
534 break;
d6ae9950 535 iface = iface->next;
b22128ef
JM		 536 }
537 if (iface) {
538 wpa_printf(MSG_DEBUG, "P2P: Use group interface %s "
539 "instead of interface %s for Action TX",
540 iface->ifname, wpa_s->ifname);
541 } else
542 iface = wpa_s;
543 } else
544 iface = wpa_s;
545
546 wpa_printf(MSG_DEBUG, "P2P: Sending pending Action frame to "
547 MACSTR " using interface %s",
548 MAC2STR(wpa_s->pending_action_dst), iface->ifname);
549 res = wpa_drv_send_action(iface, wpa_s->pending_action_freq,
550 wpa_s->pending_action_dst,
551 wpa_s->pending_action_src,
552 wpa_s->pending_action_bssid,
553 wpabuf_head(wpa_s->pending_action_tx),
554 wpabuf_len(wpa_s->pending_action_tx));
555 if (res) {
556 wpa_printf(MSG_DEBUG, "P2P: Failed to send the pending "
557 "Action frame");
558 /*
559 * Use fake TX status event to allow P2P state machine to
560 * continue.
561 */
562 wpas_send_action_tx_status(
563 wpa_s, wpa_s->pending_action_dst,
564 wpabuf_head(wpa_s->pending_action_tx),
565 wpabuf_len(wpa_s->pending_action_tx), 0);
566 }
567}
568
569
570void wpas_send_action_tx_status(struct wpa_supplicant *wpa_s, const u8 *dst,
571 const u8 *data, size_t data_len, int ack)
572{
573 if (wpa_s->global->p2p_disabled)
574 return;
575
576 if (wpa_s->pending_action_tx == NULL) {
577 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - no "
578 "pending operation");
579 return;
580 }
581
582 if (os_memcmp(dst, wpa_s->pending_action_dst, ETH_ALEN) != 0) {
583 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - unknown "
584 "destination address");
585 return;
586 }
587
588 wpabuf_free(wpa_s->pending_action_tx);
589 wpa_s->pending_action_tx = NULL;
590
591 p2p_send_action_cb(wpa_s->global->p2p, wpa_s->pending_action_freq,
592 wpa_s->pending_action_dst,
593 wpa_s->pending_action_src,
594 wpa_s->pending_action_bssid,
595 ack);
596
597 if (wpa_s->pending_pd_before_join &&
598 (os_memcmp(wpa_s->pending_action_dst, wpa_s->pending_join_dev_addr,
599 ETH_ALEN) == 0 ||
600 os_memcmp(wpa_s->pending_action_dst,
601 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
602 wpa_s->pending_pd_before_join = 0;
603 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
604 "join-existing-group operation");
605 wpas_p2p_join_start(wpa_s);
606 }
607}
608
609
610static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
611 const u8 *src, const u8 *bssid, const u8 *buf,
612 size_t len, unsigned int wait_time)
613{
614 struct wpa_supplicant *wpa_s = ctx;
615
616 wpa_printf(MSG_DEBUG, "P2P: Send action frame: freq=%d dst=" MACSTR
ab218b7c
JM		 617 " src=" MACSTR " bssid=" MACSTR " len=%d",
618 freq, MAC2STR(dst), MAC2STR(src), MAC2STR(bssid),
619 (int) len);
b22128ef
JM		 620
621 if (wpa_s->pending_action_tx) {
622 wpa_printf(MSG_DEBUG, "P2P: Dropped pending Action frame TX "
623 "to " MACSTR, MAC2STR(wpa_s->pending_action_dst));
624 wpabuf_free(wpa_s->pending_action_tx);
625 }
626 wpa_s->pending_action_tx = wpabuf_alloc(len);
ab218b7c
JM		 627 if (wpa_s->pending_action_tx == NULL) {
628 wpa_printf(MSG_DEBUG, "P2P: Failed to allocate Action frame "
629 "TX buffer (len=%llu)", (unsigned long long) len);
b22128ef 630 return -1;
ab218b7c 631 }
b22128ef
JM		 632 wpabuf_put_data(wpa_s->pending_action_tx, buf, len);
633 os_memcpy(wpa_s->pending_action_src, src, ETH_ALEN);
634 os_memcpy(wpa_s->pending_action_dst, dst, ETH_ALEN);
635 os_memcpy(wpa_s->pending_action_bssid, bssid, ETH_ALEN);
636 wpa_s->pending_action_freq = freq;
637
638 if (wpa_s->off_channel_freq == freq || freq == 0) {
ab218b7c
JM		 639 wpa_printf(MSG_DEBUG, "P2P: Already on requested channel; "
640 "send Action frame immediately");
b22128ef
JM		 641 /* TODO: Would there ever be need to extend the current
642 * duration on the channel? */
643 wpa_s->pending_action_without_roc = 1;
644 eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
645 eloop_register_timeout(0, 0, wpas_send_action_cb, wpa_s, NULL);
646 return 0;
647 }
648 wpa_s->pending_action_without_roc = 0;
649
07a30a66
JM		 650 if (wpa_s->roc_waiting_drv_freq == freq) {
651 wpa_printf(MSG_DEBUG, "P2P: Already waiting for driver to get "
652 "to frequency %u MHz; continue waiting to send the "
653 "Action frame", freq);
654 return 0;
655 }
656
b22128ef
JM		 657 wpa_printf(MSG_DEBUG, "P2P: Schedule Action frame to be transmitted "
658 "once the driver gets to the requested channel");
659 if (wait_time > wpa_s->max_remain_on_chan)
660 wait_time = wpa_s->max_remain_on_chan;
661 if (wpa_drv_remain_on_channel(wpa_s, freq, wait_time) < 0) {
662 wpa_printf(MSG_DEBUG, "P2P: Failed to request driver "
663 "to remain on channel (%u MHz) for Action "
664 "Frame TX", freq);
665 return -1;
666 }
07a30a66 667 wpa_s->roc_waiting_drv_freq = freq;
b22128ef
JM		 668
669 return 0;
670}
671
672
673static void wpas_send_action_done(void *ctx)
674{
675 struct wpa_supplicant *wpa_s = ctx;
676 wpa_printf(MSG_DEBUG, "P2P: Action frame sequence done notification");
677 wpabuf_free(wpa_s->pending_action_tx);
678 wpa_s->pending_action_tx = NULL;
679 if (wpa_s->off_channel_freq) {
680 wpa_drv_cancel_remain_on_channel(wpa_s);
681 wpa_s->off_channel_freq = 0;
07a30a66 682 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 683 }
684}
685
686
687static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
688 struct p2p_go_neg_results *params)
689{
690 if (wpa_s->go_params == NULL) {
691 wpa_s->go_params = os_malloc(sizeof(*params));
692 if (wpa_s->go_params == NULL)
693 return -1;
694 }
695 os_memcpy(wpa_s->go_params, params, sizeof(*params));
696 return 0;
697}
698
699
700static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
701 struct p2p_go_neg_results *res)
702{
3b29972c
JM		 703 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
704 MAC2STR(res->peer_interface_addr));
e9a7ae41
JM		 705 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
706 res->ssid, res->ssid_len);
b22128ef
JM		 707 wpa_supplicant_ap_deinit(wpa_s);
708 wpas_copy_go_neg_results(wpa_s, res);
709 if (res->wps_method == WPS_PBC)
3b29972c 710 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
3c5126a4
JM		 711 else {
712 u16 dev_pw_id = DEV_PW_DEFAULT;
713 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
714 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
b22128ef 715 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
3c5126a4
JM		 716 wpa_s->p2p_pin, 1, dev_pw_id);
717 }
b22128ef
JM		 718}
719
720
721static void p2p_go_configured(void *ctx, void *data)
722{
723 struct wpa_supplicant *wpa_s = ctx;
724 struct p2p_go_neg_results *params = data;
725 struct wpa_ssid *ssid;
726
727 ssid = wpa_s->current_ssid;
728 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
729 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
730 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 731 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
732 "go_dev_addr=" MACSTR "%s",
b22128ef
JM		 733 wpa_s->ifname,
734 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
c481048f 735 ssid->frequency,
b22128ef
JM		 736 params->passphrase ? params->passphrase : "",
737 MAC2STR(wpa_s->parent->own_addr),
738 params->persistent_group ? " [PERSISTENT]" : "");
739 if (params->persistent_group)
740 wpas_p2p_store_persistent_group(
741 wpa_s->parent, ssid,
742 wpa_s->parent->own_addr);
72044390 743 wpas_p2p_cross_connect_setup(wpa_s);
b22128ef
JM		 744 return;
745 }
746
747 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
748 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
749 params->peer_interface_addr)) {
750 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
751 "filtering");
752 return;
753 }
754 if (params->wps_method == WPS_PBC)
755 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr);
756 else if (wpa_s->p2p_pin[0])
757 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
758 wpa_s->p2p_pin, NULL, 0);
759 os_free(wpa_s->go_params);
760 wpa_s->go_params = NULL;
761}
762
763
764static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
765 struct p2p_go_neg_results *params,
766 int group_formation)
767{
768 struct wpa_ssid *ssid;
769
770 if (wpas_copy_go_neg_results(wpa_s, params) < 0)
771 return;
772
773 ssid = wpa_config_add_network(wpa_s->conf);
774 if (ssid == NULL)
775 return;
776
777 wpa_config_set_network_defaults(ssid);
778 ssid->temporary = 1;
779 ssid->p2p_group = 1;
780 ssid->p2p_persistent_group = params->persistent_group;
781 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
782 WPAS_MODE_P2P_GO;
783 ssid->frequency = params->freq;
784 ssid->ssid = os_zalloc(params->ssid_len + 1);
785 if (ssid->ssid) {
786 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
787 ssid->ssid_len = params->ssid_len;
788 }
789 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
790 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
791 ssid->proto = WPA_PROTO_RSN;
792 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
793 ssid->passphrase = os_strdup(params->passphrase);
794
795 wpa_s->ap_configured_cb = p2p_go_configured;
796 wpa_s->ap_configured_cb_ctx = wpa_s;
797 wpa_s->ap_configured_cb_data = wpa_s->go_params;
798 wpa_s->connect_without_scan = 1;
799 wpa_s->reassociate = 1;
800 wpa_s->disconnected = 0;
801 wpa_supplicant_req_scan(wpa_s, 0, 0);
802}
803
804
805static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
806 const struct wpa_supplicant *src)
807{
808 struct wpa_config *d;
809 const struct wpa_config *s;
810
811 d = dst->conf;
812 s = src->conf;
813
814#define C(n) if (s->n) d->n = os_strdup(s->n)
815 C(device_name);
816 C(manufacturer);
817 C(model_name);
818 C(model_number);
819 C(serial_number);
820 C(device_type);
821 C(config_methods);
822#undef C
823}
824
825
826static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
827 enum wpa_driver_if_type type)
828{
829 char ifname[120], force_ifname[120];
830
831 if (wpa_s->pending_interface_name[0]) {
832 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
833 "- skip creation of a new one");
834 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
835 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
836 "unknown?! ifname='%s'",
837 wpa_s->pending_interface_name);
838 return -1;
839 }
840 return 0;
841 }
842
843 os_snprintf(ifname, sizeof(ifname), "%s-p2p-%d", wpa_s->ifname,
844 wpa_s->p2p_group_idx);
845 force_ifname[0] = '\0';
846
847 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
848 ifname);
849 wpa_s->p2p_group_idx++;
850
851 wpa_s->pending_interface_type = type;
852 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
853 wpa_s->pending_interface_addr) < 0) {
854 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
855 "interface");
856 return -1;
857 }
858
859 if (force_ifname[0]) {
860 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
861 force_ifname);
862 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
863 sizeof(wpa_s->pending_interface_name));
864 } else
865 os_strlcpy(wpa_s->pending_interface_name, ifname,
866 sizeof(wpa_s->pending_interface_name));
867 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
868 MACSTR, wpa_s->pending_interface_name,
869 MAC2STR(wpa_s->pending_interface_addr));
870
871 return 0;
872}
873
874
875static void wpas_p2p_remove_pending_group_interface(
876 struct wpa_supplicant *wpa_s)
877{
878 if (!wpa_s->pending_interface_name[0] ||
879 is_zero_ether_addr(wpa_s->pending_interface_addr))
880 return; /* No pending virtual interface */
881
882 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
883 wpa_s->pending_interface_name);
884 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
885 wpa_s->pending_interface_name);
886 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
887 wpa_s->pending_interface_name[0] = '\0';
888}
889
890
891static struct wpa_supplicant *
892wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
893{
894 struct wpa_interface iface;
895 struct wpa_supplicant *group_wpa_s;
896
897 if (!wpa_s->pending_interface_name[0]) {
898 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
d75e8806
JM		 899 if (!wpas_p2p_create_iface(wpa_s))
900 return NULL;
901 /*
902 * Something has forced us to remove the pending interface; try
903 * to create a new one and hope for the best that we will get
904 * the same local address.
905 */
906 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
907 WPA_IF_P2P_CLIENT) < 0)
908 return NULL;
b22128ef
JM		 909 }
910
911 os_memset(&iface, 0, sizeof(iface));
912 iface.ifname = wpa_s->pending_interface_name;
913 iface.driver = wpa_s->driver->name;
914 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
915 iface.driver_param = wpa_s->conf->driver_param;
916 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
917 if (group_wpa_s == NULL) {
918 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
919 "wpa_supplicant interface");
920 return NULL;
921 }
922 wpa_s->pending_interface_name[0] = '\0';
923 group_wpa_s->parent = wpa_s;
924 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
925 P2P_GROUP_INTERFACE_CLIENT;
926 wpa_s->global->p2p_group_formation = group_wpa_s;
927
928 wpas_p2p_clone_config(group_wpa_s, wpa_s);
929
930 return group_wpa_s;
931}
932
933
934static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
935 void *timeout_ctx)
936{
937 struct wpa_supplicant *wpa_s = eloop_ctx;
938 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
939 if (wpa_s->global->p2p)
940 p2p_group_formation_failed(wpa_s->global->p2p);
941 wpas_group_formation_completed(wpa_s, 0);
942}
943
944
945void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
946{
947 struct wpa_supplicant *wpa_s = ctx;
948
949 if (wpa_s->off_channel_freq) {
950 wpa_drv_cancel_remain_on_channel(wpa_s);
951 wpa_s->off_channel_freq = 0;
07a30a66 952 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 953 }
954
955 if (res->status) {
956 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
957 res->status);
958 wpas_p2p_remove_pending_group_interface(wpa_s);
959 return;
960 }
961
962 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
963
964 if (wpa_s->create_p2p_iface) {
965 struct wpa_supplicant *group_wpa_s =
966 wpas_p2p_init_group_interface(wpa_s, res->role_go);
967 if (group_wpa_s == NULL) {
968 wpas_p2p_remove_pending_group_interface(wpa_s);
969 return;
970 }
3c5126a4 971 if (group_wpa_s != wpa_s) {
b22128ef
JM		 972 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
973 sizeof(group_wpa_s->p2p_pin));
3c5126a4
JM		 974 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
975 }
b22128ef
JM		 976 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
977 wpa_s->pending_interface_name[0] = '\0';
978 group_wpa_s->p2p_in_provisioning = 1;
979
980 if (res->role_go)
981 wpas_start_wps_go(group_wpa_s, res, 1);
982 else
983 wpas_start_wps_enrollee(group_wpa_s, res);
984 } else {
985 wpa_s->p2p_in_provisioning = 1;
986 wpa_s->global->p2p_group_formation = wpa_s;
987
988 if (res->role_go)
989 wpas_start_wps_go(wpa_s, res, 1);
990 else
991 wpas_start_wps_enrollee(ctx, res);
992 }
993
994 wpa_s->p2p_long_listen = 0;
995 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
996
997 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ae3e3421
JM		 998 eloop_register_timeout(15 + res->peer_config_timeout / 100,
999 (res->peer_config_timeout % 100) * 10000,
1000 wpas_p2p_group_formation_timeout, wpa_s, NULL);
b22128ef
JM		 1001}
1002
1003
3dfda83d 1004void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
b22128ef
JM		 1005{
1006 struct wpa_supplicant *wpa_s = ctx;
3dfda83d
JM		 1007 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1008 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
b22128ef
JM		 1009}
1010
1011
1012void wpas_dev_found(void *ctx, const u8 *addr, const u8 *dev_addr,
1013 const u8 *pri_dev_type, const char *dev_name,
1014 u16 config_methods, u8 dev_capab, u8 group_capab)
1015{
1016 struct wpa_supplicant *wpa_s = ctx;
1017 char devtype[WPS_DEV_TYPE_BUFSIZE];
1018 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1019 " p2p_dev_addr=" MACSTR
1020 " pri_dev_type=%s name='%s' config_methods=0x%x "
1021 "dev_capab=0x%x group_capab=0x%x",
1022 MAC2STR(addr), MAC2STR(dev_addr),
1023 wps_dev_type_bin2str(pri_dev_type, devtype, sizeof(devtype)),
1024 dev_name, config_methods, dev_capab, group_capab);
1025}
1026
1027
1028static int wpas_start_listen(void *ctx, unsigned int freq,
1029 unsigned int duration,
1030 const struct wpabuf *probe_resp_ie)
1031{
1032 struct wpa_supplicant *wpa_s = ctx;
1033
0e2e565a 1034 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
b22128ef
JM		 1035
1036 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1037 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1038 "report received Probe Request frames");
1039 return -1;
1040 }
1041
1042 wpa_s->pending_listen_freq = freq;
1043 wpa_s->pending_listen_duration = duration;
1044
1045 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1046 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1047 "to remain on channel (%u MHz) for Listen "
1048 "state", freq);
1049 wpa_s->pending_listen_freq = 0;
1050 return -1;
1051 }
07a30a66 1052 wpa_s->roc_waiting_drv_freq = freq;
b22128ef
JM		 1053
1054 return 0;
1055}
1056
1057
1058static void wpas_stop_listen(void *ctx)
1059{
1060 struct wpa_supplicant *wpa_s = ctx;
6cb22d2f 1061 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1062 wpa_drv_cancel_remain_on_channel(wpa_s);
1063 wpa_s->off_channel_freq = 0;
07a30a66 1064 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 1065 }
1066 wpa_drv_probe_req_report(wpa_s, 0);
1067}
1068
1069
1070static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1071{
1072 struct wpa_supplicant *wpa_s = ctx;
1073 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf));
1074}
1075
1076
1077static struct p2p_srv_bonjour *
1078wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1079 const struct wpabuf *query)
1080{
1081 struct p2p_srv_bonjour *bsrv;
1082 size_t len;
1083
1084 len = wpabuf_len(query);
1085 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1086 struct p2p_srv_bonjour, list) {
1087 if (len == wpabuf_len(bsrv->query) &&
1088 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1089 len) == 0)
1090 return bsrv;
1091 }
1092 return NULL;
1093}
1094
1095
1096static struct p2p_srv_upnp *
1097wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1098 const char *service)
1099{
1100 struct p2p_srv_upnp *usrv;
1101
1102 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1103 struct p2p_srv_upnp, list) {
1104 if (version == usrv->version &&
1105 os_strcmp(service, usrv->service) == 0)
1106 return usrv;
1107 }
1108 return NULL;
1109}
1110
1111
1112static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1113 u8 srv_trans_id)
1114{
1115 u8 *len_pos;
1116
1117 if (wpabuf_tailroom(resp) < 5)
1118 return;
1119
1120 /* Length (to be filled) */
1121 len_pos = wpabuf_put(resp, 2);
1122 wpabuf_put_u8(resp, srv_proto);
1123 wpabuf_put_u8(resp, srv_trans_id);
1124 /* Status Code */
1125 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1126 /* Response Data: empty */
1127 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1128}
1129
1130
1131static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1132 struct wpabuf *resp, u8 srv_trans_id)
1133{
1134 struct p2p_srv_bonjour *bsrv;
1135 u8 *len_pos;
1136
1137 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1138
1139 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1140 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1141 return;
1142 }
1143
1144 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1145 struct p2p_srv_bonjour, list) {
1146 if (wpabuf_tailroom(resp) <
1147 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1148 return;
1149 /* Length (to be filled) */
1150 len_pos = wpabuf_put(resp, 2);
1151 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1152 wpabuf_put_u8(resp, srv_trans_id);
1153 /* Status Code */
1154 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1155 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1156 wpabuf_head(bsrv->resp),
1157 wpabuf_len(bsrv->resp));
1158 /* Response Data */
1159 wpabuf_put_buf(resp, bsrv->query); /* Key */
1160 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1161 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1162 2);
1163 }
1164}
1165
1166
1167static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1168 struct wpabuf *resp, u8 srv_trans_id,
1169 const u8 *query, size_t query_len)
1170{
1171 struct p2p_srv_bonjour *bsrv;
1172 struct wpabuf buf;
1173 u8 *len_pos;
1174
1175 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1176 query, query_len);
1177 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1178 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1179 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1180 srv_trans_id);
1181 return;
1182 }
1183
1184 if (query_len == 0) {
1185 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1186 return;
1187 }
1188
1189 if (wpabuf_tailroom(resp) < 5)
1190 return;
1191 /* Length (to be filled) */
1192 len_pos = wpabuf_put(resp, 2);
1193 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1194 wpabuf_put_u8(resp, srv_trans_id);
1195
1196 wpabuf_set(&buf, query, query_len);
1197 bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1198 if (bsrv == NULL) {
1199 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1200 "available");
1201
1202 /* Status Code */
bf608cad 1203 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1204 /* Response Data: empty */
1205 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1206 2);
1207 return;
1208 }
1209
1210 /* Status Code */
1211 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1212 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1213 wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1214
1215 if (wpabuf_tailroom(resp) >=
1216 wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1217 /* Response Data */
1218 wpabuf_put_buf(resp, bsrv->query); /* Key */
1219 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1220 }
1221 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1222}
1223
1224
1225static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1226 struct wpabuf *resp, u8 srv_trans_id)
1227{
1228 struct p2p_srv_upnp *usrv;
1229 u8 *len_pos;
1230
1231 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1232
1233 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1234 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1235 return;
1236 }
1237
1238 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1239 struct p2p_srv_upnp, list) {
1240 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1241 return;
1242
1243 /* Length (to be filled) */
1244 len_pos = wpabuf_put(resp, 2);
1245 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1246 wpabuf_put_u8(resp, srv_trans_id);
1247
1248 /* Status Code */
1249 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1250 /* Response Data */
1251 wpabuf_put_u8(resp, usrv->version);
1252 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1253 usrv->service);
1254 wpabuf_put_str(resp, usrv->service);
1255 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1256 2);
1257 }
1258}
1259
1260
1261static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1262 struct wpabuf *resp, u8 srv_trans_id,
1263 const u8 *query, size_t query_len)
1264{
1265 struct p2p_srv_upnp *usrv;
1266 u8 *len_pos;
1267 u8 version;
1268 char *str;
1269 int count = 0;
1270
1271 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1272 query, query_len);
1273
1274 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1275 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1276 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1277 srv_trans_id);
1278 return;
1279 }
1280
1281 if (query_len == 0) {
1282 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1283 return;
1284 }
1285
1286 version = query[0];
1287 str = os_malloc(query_len);
1288 if (str == NULL)
1289 return;
1290 os_memcpy(str, query + 1, query_len - 1);
1291 str[query_len - 1] = '\0';
1292
1293 if (wpabuf_tailroom(resp) < 5)
1294 return;
1295
1296 /* Length (to be filled) */
1297 len_pos = wpabuf_put(resp, 2);
1298 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1299 wpabuf_put_u8(resp, srv_trans_id);
1300
1301 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1302 struct p2p_srv_upnp, list) {
1303 if (version != usrv->version)
1304 continue;
1305
1306 if (os_strcmp(str, "ssdp:all") != 0 &&
1307 os_strstr(usrv->service, str) == NULL)
1308 continue;
1309
1310 if (wpabuf_tailroom(resp) < 2)
1311 break;
1312 if (count == 0) {
1313 /* Status Code */
1314 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1315 /* Response Data */
1316 wpabuf_put_u8(resp, version);
1317 } else
1318 wpabuf_put_u8(resp, ',');
1319
1320 count++;
1321
1322 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1323 usrv->service);
1324 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1325 break;
1326 wpabuf_put_str(resp, usrv->service);
1327 }
1328
1329 if (count == 0) {
1330 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1331 "available");
1332 /* Status Code */
bf608cad 1333 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1334 /* Response Data: empty */
1335 }
1336
1337 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1338}
1339
1340
1341void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1342 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1343{
1344 struct wpa_supplicant *wpa_s = ctx;
1345 const u8 *pos = tlvs;
1346 const u8 *end = tlvs + tlvs_len;
1347 const u8 *tlv_end;
1348 u16 slen;
1349 struct wpabuf *resp;
1350 u8 srv_proto, srv_trans_id;
1351 size_t buf_len;
1352 char *buf;
1353
1354 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1355 tlvs, tlvs_len);
1356 buf_len = 2 * tlvs_len + 1;
1357 buf = os_malloc(buf_len);
1358 if (buf) {
1359 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1360 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1361 MACSTR " %u %u %s",
1362 freq, MAC2STR(sa), dialog_token, update_indic,
1363 buf);
1364 os_free(buf);
1365 }
1366
1367 if (wpa_s->p2p_sd_over_ctrl_iface)
1368 return; /* to be processed by an external program */
1369
1370 resp = wpabuf_alloc(10000);
1371 if (resp == NULL)
1372 return;
1373
1374 while (pos + 1 < end) {
1375 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1376 slen = WPA_GET_LE16(pos);
1377 pos += 2;
1378 if (pos + slen > end || slen < 2) {
1379 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1380 "length");
1381 wpabuf_free(resp);
1382 return;
1383 }
1384 tlv_end = pos + slen;
1385
1386 srv_proto = *pos++;
1387 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1388 srv_proto);
1389 srv_trans_id = *pos++;
1390 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1391 srv_trans_id);
1392
1393 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1394 pos, tlv_end - pos);
1395
6e6963ea
JM		 1396
1397 if (wpa_s->force_long_sd) {
1398 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1399 "response");
1400 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1401 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1402 goto done;
1403 }
1404
b22128ef
JM		 1405 switch (srv_proto) {
1406 case P2P_SERV_ALL_SERVICES:
1407 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1408 "for all services");
1409 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1410 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1411 wpa_printf(MSG_DEBUG, "P2P: No service "
1412 "discovery protocols available");
1413 wpas_sd_add_proto_not_avail(
1414 resp, P2P_SERV_ALL_SERVICES,
1415 srv_trans_id);
1416 break;
1417 }
1418 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1419 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1420 break;
1421 case P2P_SERV_BONJOUR:
1422 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1423 pos, tlv_end - pos);
1424 break;
1425 case P2P_SERV_UPNP:
1426 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1427 pos, tlv_end - pos);
1428 break;
1429 default:
1430 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1431 "protocol %u", srv_proto);
1432 wpas_sd_add_proto_not_avail(resp, srv_proto,
1433 srv_trans_id);
1434 break;
1435 }
1436
1437 pos = tlv_end;
1438 }
1439
6e6963ea 1440done:
b22128ef
JM		 1441 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1442
1443 wpabuf_free(resp);
1444}
1445
1446
1447void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1448 const u8 *tlvs, size_t tlvs_len)
1449{
1450 struct wpa_supplicant *wpa_s = ctx;
1451 const u8 *pos = tlvs;
1452 const u8 *end = tlvs + tlvs_len;
1453 const u8 *tlv_end;
1454 u16 slen;
1455 size_t buf_len;
1456 char *buf;
1457
1458 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1459 tlvs, tlvs_len);
18708aad
JM		 1460 if (tlvs_len > 1500) {
1461 /* TODO: better way for handling this */
1462 wpa_msg_ctrl(wpa_s, MSG_INFO,
1463 P2P_EVENT_SERV_DISC_RESP MACSTR
1464 " %u <long response: %u bytes>",
1465 MAC2STR(sa), update_indic,
1466 (unsigned int) tlvs_len);
1467 } else {
1468 buf_len = 2 * tlvs_len + 1;
1469 buf = os_malloc(buf_len);
1470 if (buf) {
1471 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1472 wpa_msg_ctrl(wpa_s, MSG_INFO,
1473 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1474 MAC2STR(sa), update_indic, buf);
1475 os_free(buf);
1476 }
b22128ef
JM		 1477 }
1478
1479 while (pos < end) {
1480 u8 srv_proto, srv_trans_id, status;
1481
1482 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1483 slen = WPA_GET_LE16(pos);
1484 pos += 2;
1485 if (pos + slen > end || slen < 3) {
1486 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1487 "length");
1488 return;
1489 }
1490 tlv_end = pos + slen;
1491
1492 srv_proto = *pos++;
1493 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1494 srv_proto);
1495 srv_trans_id = *pos++;
1496 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1497 srv_trans_id);
1498 status = *pos++;
1499 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1500 status);
1501
1502 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1503 pos, tlv_end - pos);
1504
1505 pos = tlv_end;
1506 }
1507}
1508
1509
1510void * wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1511 const struct wpabuf *tlvs)
1512{
1513 return p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1514}
1515
1516
1517void * wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1518 u8 version, const char *query)
1519{
1520 struct wpabuf *tlvs;
1521 void *ret;
1522
1523 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1524 if (tlvs == NULL)
1525 return NULL;
1526 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1527 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1528 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1529 wpabuf_put_u8(tlvs, version);
1530 wpabuf_put_str(tlvs, query);
1531 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1532 wpabuf_free(tlvs);
1533 return ret;
1534}
1535
1536
1537int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, void *req)
1538{
1539 return p2p_sd_cancel_request(wpa_s->global->p2p, req);
1540}
1541
1542
1543void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1544 const u8 *dst, u8 dialog_token,
1545 const struct wpabuf *resp_tlvs)
1546{
1547 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1548 resp_tlvs);
1549}
1550
1551
1552void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1553{
1554 p2p_sd_service_update(wpa_s->global->p2p);
1555}
1556
1557
1558static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1559{
1560 dl_list_del(&bsrv->list);
1561 wpabuf_free(bsrv->query);
1562 wpabuf_free(bsrv->resp);
1563 os_free(bsrv);
1564}
1565
1566
1567static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1568{
1569 dl_list_del(&usrv->list);
1570 os_free(usrv->service);
1571 os_free(usrv);
1572}
1573
1574
1575void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1576{
1577 struct p2p_srv_bonjour *bsrv, *bn;
1578 struct p2p_srv_upnp *usrv, *un;
1579
1580 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1581 struct p2p_srv_bonjour, list)
1582 wpas_p2p_srv_bonjour_free(bsrv);
1583
1584 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1585 struct p2p_srv_upnp, list)
1586 wpas_p2p_srv_upnp_free(usrv);
1587
1588 wpas_p2p_sd_service_update(wpa_s);
1589}
1590
1591
1592int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1593 struct wpabuf *query, struct wpabuf *resp)
1594{
1595 struct p2p_srv_bonjour *bsrv;
1596
1597 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1598 if (bsrv) {
1599 wpabuf_free(query);
1600 wpabuf_free(bsrv->resp);
1601 bsrv->resp = resp;
1602 return 0;
1603 }
1604
1605 bsrv = os_zalloc(sizeof(*bsrv));
1606 if (bsrv == NULL)
1607 return -1;
1608 bsrv->query = query;
1609 bsrv->resp = resp;
1610 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1611
1612 wpas_p2p_sd_service_update(wpa_s);
1613 return 0;
1614}
1615
1616
1617int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1618 const struct wpabuf *query)
1619{
1620 struct p2p_srv_bonjour *bsrv;
1621
1622 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1623 if (bsrv == NULL)
1624 return -1;
1625 wpas_p2p_srv_bonjour_free(bsrv);
1626 wpas_p2p_sd_service_update(wpa_s);
1627 return 0;
1628}
1629
1630
1631int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1632 const char *service)
1633{
1634 struct p2p_srv_upnp *usrv;
1635
1636 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1637 return 0; /* Already listed */
1638 usrv = os_zalloc(sizeof(*usrv));
1639 if (usrv == NULL)
1640 return -1;
1641 usrv->version = version;
1642 usrv->service = os_strdup(service);
1643 if (usrv->service == NULL) {
1644 os_free(usrv);
1645 return -1;
1646 }
1647 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1648
1649 wpas_p2p_sd_service_update(wpa_s);
1650 return 0;
1651}
1652
1653
1654int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1655 const char *service)
1656{
1657 struct p2p_srv_upnp *usrv;
1658
1659 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1660 if (usrv == NULL)
1661 return -1;
1662 wpas_p2p_srv_upnp_free(usrv);
1663 wpas_p2p_sd_service_update(wpa_s);
1664 return 0;
1665}
1666
1667
1668static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
1669 const u8 *peer, const char *params)
1670{
1671 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
1672 MAC2STR(peer), wps_generate_pin(), params);
1673}
1674
1675
1676static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1677 const u8 *peer, const char *params)
1678{
1679 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1680 MAC2STR(peer), params);
1681}
1682
1683
1684void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1685 const u8 *dev_addr, const u8 *pri_dev_type,
1686 const char *dev_name, u16 supp_config_methods,
1687 u8 dev_capab, u8 group_capab)
1688{
1689 struct wpa_supplicant *wpa_s = ctx;
1690 char devtype[WPS_DEV_TYPE_BUFSIZE];
1691 char params[200];
1692 u8 empty_dev_type[8];
1693
1694 if (pri_dev_type == NULL) {
1695 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1696 pri_dev_type = empty_dev_type;
1697 }
1698 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1699 " pri_dev_type=%s name='%s' config_methods=0x%x "
1700 "dev_capab=0x%x group_capab=0x%x",
1701 MAC2STR(dev_addr),
1702 wps_dev_type_bin2str(pri_dev_type, devtype,
1703 sizeof(devtype)),
1704 dev_name, supp_config_methods, dev_capab, group_capab);
1705 params[sizeof(params) - 1] = '\0';
1706
1707 if (config_methods & WPS_CONFIG_DISPLAY)
1708 wpas_prov_disc_local_display(wpa_s, peer, params);
1709 else if (config_methods & WPS_CONFIG_KEYPAD)
1710 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1711 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1712 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1713 "%s", MAC2STR(peer), params);
1714}
1715
1716
1717void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1718{
1719 struct wpa_supplicant *wpa_s = ctx;
1720 if (config_methods & WPS_CONFIG_DISPLAY)
1721 wpas_prov_disc_local_keypad(wpa_s, peer, "");
1722 else if (config_methods & WPS_CONFIG_KEYPAD)
1723 wpas_prov_disc_local_display(wpa_s, peer, "");
1724 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1725 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1726 MAC2STR(peer));
a482883f
JM		 1727
1728 if (wpa_s->pending_pd_before_join &&
1729 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
1730 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
1731 wpa_s->pending_pd_before_join = 0;
1732 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
1733 "join-existing-group operation");
1734 wpas_p2p_join_start(wpa_s);
1735 }
b22128ef
JM		 1736}
1737
1738
1739static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1740 const u8 *go_dev_addr, const u8 *ssid,
1741 size_t ssid_len, int *go, u8 *group_bssid,
1742 int *force_freq, int persistent_group)
1743{
1744 struct wpa_supplicant *wpa_s = ctx;
1745 struct wpa_ssid *s;
1746 u8 cur_bssid[ETH_ALEN];
1747 int res;
1748
1749 if (!persistent_group) {
1750 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1751 " to join an active group", MAC2STR(sa));
108def93 1752 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
131cb37c
JM		 1753 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
1754 == 0 ||
1755 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
108def93
JM		 1756 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
1757 "authorized invitation");
1758 goto accept_inv;
1759 }
b22128ef
JM		 1760 /*
1761 * Do not accept the invitation automatically; notify user and
1762 * request approval.
1763 */
1764 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1765 }
1766
1767 if (!wpa_s->conf->persistent_reconnect)
1768 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1769
1770 for (s = wpa_s->conf->ssid; s; s = s->next) {
1771 if (s->disabled == 2 &&
1772 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
1773 s->ssid_len == ssid_len &&
1774 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1775 break;
1776 }
1777
1778 if (!s) {
1779 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1780 " requested reinvocation of an unknown group",
1781 MAC2STR(sa));
1782 return P2P_SC_FAIL_UNKNOWN_GROUP;
1783 }
1784
1785 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
1786 *go = 1;
1787 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1788 wpa_printf(MSG_DEBUG, "P2P: The only available "
1789 "interface is already in use - reject "
1790 "invitation");
1791 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1792 }
1793 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
1794 } else if (s->mode == WPAS_MODE_P2P_GO) {
1795 *go = 1;
1796 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
1797 {
1798 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
1799 "interface address for the group");
1800 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1801 }
1802 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
1803 ETH_ALEN);
1804 }
1805
108def93 1806accept_inv:
b22128ef
JM		 1807 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
1808 wpa_s->assoc_freq) {
1809 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1810 "the channel we are already using");
1811 *force_freq = wpa_s->assoc_freq;
1812 }
1813
1814 res = wpa_drv_shared_freq(wpa_s);
1815 if (res > 0) {
1816 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1817 "with the channel we are already using on a "
1818 "shared interface");
1819 *force_freq = res;
1820 }
1821
1822 return P2P_SC_SUCCESS;
1823}
1824
1825
1826static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
1827 const u8 *ssid, size_t ssid_len,
1828 const u8 *go_dev_addr, u8 status,
1829 int op_freq)
1830{
1831 struct wpa_supplicant *wpa_s = ctx;
1832 struct wpa_ssid *s;
1833
1834 for (s = wpa_s->conf->ssid; s; s = s->next) {
1835 if (s->disabled == 2 &&
1836 s->ssid_len == ssid_len &&
1837 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1838 break;
1839 }
1840
1841 if (status == P2P_SC_SUCCESS) {
1842 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1843 " was accepted; op_freq=%d MHz",
1844 MAC2STR(sa), op_freq);
1845 if (s) {
1846 wpas_p2p_group_add_persistent(
1847 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
2049af2b 1848 } else if (bssid) {
108def93
JM		 1849 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
1850 wpa_s->p2p_wps_method);
b22128ef
JM		 1851 }
1852 return;
1853 }
1854
1855 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
1856 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1857 " was rejected (status %u)", MAC2STR(sa), status);
1858 return;
1859 }
1860
1861 if (!s) {
1862 if (bssid) {
1863 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1864 "sa=" MACSTR " go_dev_addr=" MACSTR
1865 " bssid=" MACSTR " unknown-network",
1866 MAC2STR(sa), MAC2STR(go_dev_addr),
1867 MAC2STR(bssid));
1868 } else {
1869 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1870 "sa=" MACSTR " go_dev_addr=" MACSTR
1871 " unknown-network",
1872 MAC2STR(sa), MAC2STR(go_dev_addr));
1873 }
1874 return;
1875 }
1876
1877 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
1878 " persistent=%d", MAC2STR(sa), s->id);
1879}
1880
1881
1882static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
1883{
1884 struct wpa_supplicant *wpa_s = ctx;
1885 struct wpa_ssid *ssid;
1886
1887 if (bssid) {
1888 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1889 "status=%d " MACSTR,
1890 status, MAC2STR(bssid));
1891 } else {
1892 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1893 "status=%d ", status);
1894 }
1895
706887fc
JM		 1896 if (wpa_s->pending_invite_ssid_id == -1)
1897 return; /* Invitation to active group */
1898
b22128ef
JM		 1899 if (status != P2P_SC_SUCCESS) {
1900 wpas_p2p_remove_pending_group_interface(wpa_s);
1901 return;
1902 }
1903
1904 ssid = wpa_config_get_network(wpa_s->conf,
1905 wpa_s->pending_invite_ssid_id);
1906 if (ssid == NULL) {
1907 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
1908 "data matching with invitation");
1909 return;
1910 }
1911
1912 wpas_p2p_group_add_persistent(wpa_s, ssid,
1913 ssid->mode == WPAS_MODE_P2P_GO, 0);
1914}
1915
1916
ac8d1011
JM		 1917static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
1918 struct p2p_channels *chan)
1919{
1920 int i, cla = 0;
1921
1922 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
1923 "band");
1924
1925 /* Operating class 81 - 2.4 GHz band channels 1..13 */
1926 chan->reg_class[cla].reg_class = 81;
1927 chan->reg_class[cla].channels = 11;
1928 for (i = 0; i < 11; i++)
1929 chan->reg_class[cla].channel[i] = i + 1;
1930 cla++;
1931
1932 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
1933 "band");
1934
1935 /* Operating class 115 - 5 GHz, channels 36-48 */
1936 chan->reg_class[cla].reg_class = 115;
1937 chan->reg_class[cla].channels = 4;
1938 chan->reg_class[cla].channel[0] = 36;
1939 chan->reg_class[cla].channel[1] = 40;
1940 chan->reg_class[cla].channel[2] = 44;
1941 chan->reg_class[cla].channel[3] = 48;
1942 cla++;
1943
1944 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
1945 "band");
1946
1947 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
1948 chan->reg_class[cla].reg_class = 124;
1949 chan->reg_class[cla].channels = 4;
1950 chan->reg_class[cla].channel[0] = 149;
1951 chan->reg_class[cla].channel[1] = 153;
1952 chan->reg_class[cla].channel[2] = 157;
1953 chan->reg_class[cla].channel[3] = 161;
1954 cla++;
1955
1956 chan->reg_classes = cla;
1957 return 0;
1958}
1959
1960
1961static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
1962 u16 num_modes,
1963 enum hostapd_hw_mode mode)
1964{
1965 u16 i;
1966
1967 for (i = 0; i < num_modes; i++) {
1968 if (modes[i].mode == mode)
1969 return &modes[i];
1970 }
1971
1972 return NULL;
1973}
1974
1975
1976static int has_channel(struct hostapd_hw_modes *mode, u8 chan)
1977{
1978 int i;
1979
1980 for (i = 0; i < mode->num_channels; i++) {
1981 if (mode->channels[i].chan == chan) {
1982 return !(mode->channels[i].flag &
1983 (HOSTAPD_CHAN_DISABLED |
1984 HOSTAPD_CHAN_PASSIVE_SCAN |
1985 HOSTAPD_CHAN_NO_IBSS |
1986 HOSTAPD_CHAN_RADAR));
1987 }
1988 }
1989
1990 return 0;
1991}
1992
1993
1994struct p2p_oper_class_map {
1995 enum hostapd_hw_mode mode;
1996 u8 op_class;
1997 u8 min_chan;
1998 u8 max_chan;
1999 u8 inc;
2000};
2001
b22128ef 2002static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
ac8d1011 2003 struct p2p_channels *chan)
b22128ef 2004{
ac8d1011 2005 struct hostapd_hw_modes *modes, *mode;
b22128ef 2006 u16 num_modes, flags;
ac8d1011
JM		 2007 int cla, op;
2008 struct p2p_oper_class_map op_class[] = {
2009 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1 },
2010 { HOSTAPD_MODE_IEEE80211G, 82, 14, 14, 1 },
2011 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4 },
2012 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4 },
2013#if 0 /* TODO: 40 MHz channels */
2014 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1 },
2015 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1 },
2016 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8 },
2017 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8 },
2018 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8 },
2019 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8 },
2020#endif
2021 { -1, 0, 0, 0, 0 }
2022 };
b22128ef
JM		 2023
2024 modes = wpa_drv_get_hw_feature_data(wpa_s, &num_modes, &flags);
2025 if (modes == NULL) {
2026 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2027 "of all supported channels; assume dualband "
2028 "support");
ac8d1011 2029 return wpas_p2p_default_channels(wpa_s, chan);
b22128ef
JM		 2030 }
2031
2032 cla = 0;
2033
ac8d1011
JM		 2034 for (op = 0; op_class[op].op_class; op++) {
2035 struct p2p_oper_class_map *o = &op_class[op];
2036 u8 ch;
2037 struct p2p_reg_class *reg = NULL;
b22128ef 2038
ac8d1011
JM		 2039 mode = get_mode(modes, num_modes, o->mode);
2040 if (mode == NULL)
2041 continue;
2042 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2043 if (!has_channel(mode, ch))
2044 continue;
2045 if (reg == NULL) {
2046 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2047 "class %u", o->op_class);
2048 reg = &chan->reg_class[cla];
2049 cla++;
2050 reg->reg_class = o->op_class;
2051 }
2052 reg->channel[reg->channels] = ch;
2053 reg->channels++;
2054 }
2055 if (reg) {
2056 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2057 reg->channel, reg->channels);
2058 }
b22128ef
JM		 2059 }
2060
ac8d1011 2061 chan->reg_classes = cla;
b22128ef 2062
ac8d1011 2063 ieee80211_sta_free_hw_features(modes, num_modes);
b22128ef
JM		 2064
2065 return 0;
2066}
2067
2068
2069static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2070 size_t buf_len)
2071{
2072 struct wpa_supplicant *wpa_s = ctx;
2073
2074 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2075 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2076 break;
2077 }
2078 if (wpa_s == NULL)
2079 return -1;
2080
2081 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2082}
2083
2084
2085/**
2086 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2087 * @global: Pointer to global data from wpa_supplicant_init()
2088 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2089 * Returns: 0 on success, -1 on failure
2090 */
2091int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2092{
2093 struct p2p_config p2p;
2094 unsigned int r;
2095 int i;
2096
2097 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2098 return 0;
2099
2100#ifdef CONFIG_CLIENT_MLME
2101 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)) {
2102 wpa_s->mlme.public_action_cb = p2p_rx_action_mlme;
2103 wpa_s->mlme.public_action_cb_ctx = wpa_s;
2104 }
2105#endif /* CONFIG_CLIENT_MLME */
2106
2107 if (wpa_drv_disable_11b_rates(wpa_s, 1) < 0) {
2108 wpa_printf(MSG_DEBUG, "P2P: Failed to disable 11b rates");
2109 /* Continue anyway; this is not really a fatal error */
2110 }
2111
2112 if (global->p2p)
2113 return 0;
2114
2115 os_memset(&p2p, 0, sizeof(p2p));
2116 p2p.msg_ctx = wpa_s;
2117 p2p.cb_ctx = wpa_s;
2118 p2p.p2p_scan = wpas_p2p_scan;
2119 p2p.send_action = wpas_send_action;
2120 p2p.send_action_done = wpas_send_action_done;
2121 p2p.go_neg_completed = wpas_go_neg_completed;
2122 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2123 p2p.dev_found = wpas_dev_found;
2124 p2p.start_listen = wpas_start_listen;
2125 p2p.stop_listen = wpas_stop_listen;
2126 p2p.send_probe_resp = wpas_send_probe_resp;
2127 p2p.sd_request = wpas_sd_request;
2128 p2p.sd_response = wpas_sd_response;
2129 p2p.prov_disc_req = wpas_prov_disc_req;
2130 p2p.prov_disc_resp = wpas_prov_disc_resp;
2131 p2p.invitation_process = wpas_invitation_process;
2132 p2p.invitation_received = wpas_invitation_received;
2133 p2p.invitation_result = wpas_invitation_result;
2134 p2p.get_noa = wpas_get_noa;
2135
2136 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2137 os_memcpy(p2p.dev_addr, wpa_s->own_addr, ETH_ALEN);
2138 p2p.dev_name = wpa_s->conf->device_name;
2139
2140 if (wpa_s->conf->p2p_listen_reg_class &&
2141 wpa_s->conf->p2p_listen_channel) {
2142 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2143 p2p.channel = wpa_s->conf->p2p_listen_channel;
2144 } else {
2145 p2p.reg_class = 81;
2146 /*
2147 * Pick one of the social channels randomly as the listen
2148 * channel.
2149 */
2150 os_get_random((u8 *) &r, sizeof(r));
2151 p2p.channel = 1 + (r % 3) * 5;
2152 }
2153
2154 if (wpa_s->conf->p2p_oper_reg_class &&
2155 wpa_s->conf->p2p_oper_channel) {
2156 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2157 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2158 } else {
2159 p2p.op_reg_class = 81;
2160 /*
2161 * For initial tests, pick the operation channel randomly.
2162 * TODO: Use scan results (etc.) to select the best channel.
2163 */
2164 p2p.op_channel = 1 + r % 11;
2165 }
2166 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d "
2167 "Own preferred operation channel: %d",
2168 p2p.channel, p2p.op_channel);
2169 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2170 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2171 p2p.country[2] = 0x04;
2172 } else
2173 os_memcpy(p2p.country, "US\x04", 3);
2174
ac8d1011 2175 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
b22128ef
JM		 2176 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2177 "channel list");
2178 return -1;
2179 }
2180
2181 if (wpa_s->conf->device_type &&
2182 wps_dev_type_str2bin(wpa_s->conf->device_type, p2p.pri_dev_type) <
2183 0) {
2184 wpa_printf(MSG_ERROR, "P2P: Invalid device_type");
2185 return -1;
2186 }
2187
2188 for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
2189 if (wpa_s->conf->sec_device_type[i] == NULL)
2190 continue;
2191 if (wps_dev_type_str2bin(
2192 wpa_s->conf->sec_device_type[i],
2193 p2p.sec_dev_type[p2p.num_sec_dev_types]) < 0) {
2194 wpa_printf(MSG_ERROR, "P2P: Invalid sec_device_type");
2195 return -1;
2196 }
2197 p2p.num_sec_dev_types++;
2198 if (p2p.num_sec_dev_types == P2P_SEC_DEVICE_TYPES)
2199 break;
2200 }
2201
2202 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2203 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2204
c4ea4c5c 2205 p2p.max_peers = wpa_s->max_stations ? wpa_s->max_stations : 100;
b22128ef
JM		 2206
2207 if (wpa_s->conf->p2p_ssid_postfix) {
2208 p2p.ssid_postfix_len =
2209 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2210 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2211 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2212 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2213 p2p.ssid_postfix_len);
2214 }
2215
0f66abd2
SS		 2216 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2217
b22128ef
JM		 2218 global->p2p = p2p_init(&p2p);
2219 if (global->p2p == NULL)
2220 return -1;
2221
2222 return 0;
2223}
2224
2225
2226/**
2227 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2228 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2229 *
2230 * This function deinitialize per-interface P2P data.
2231 */
2232void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2233{
2234 if (wpa_s->driver && wpa_s->drv_priv)
2235 wpa_drv_probe_req_report(wpa_s, 0);
2236 os_free(wpa_s->go_params);
2237 wpa_s->go_params = NULL;
2238 wpabuf_free(wpa_s->pending_action_tx);
2239 wpa_s->pending_action_tx = NULL;
2240 eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
2241 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 2242 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 2243 wpa_s->p2p_long_listen = 0;
2244 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2245 wpas_p2p_remove_pending_group_interface(wpa_s);
2246
2247 /* TODO: remove group interface from the driver if this wpa_s instance
2248 * is on top of a P2P group interface */
2249}
2250
2251
2252/**
2253 * wpas_p2p_deinit_global - Deinitialize global P2P module
2254 * @global: Pointer to global data from wpa_supplicant_init()
2255 *
2256 * This function deinitializes the global (per device) P2P module.
2257 */
2258void wpas_p2p_deinit_global(struct wpa_global *global)
2259{
2260 struct wpa_supplicant *wpa_s, *tmp;
2261 char *ifname;
2262
2263 if (global->p2p == NULL)
2264 return;
2265
2266 /* Remove remaining P2P group interfaces */
2267 wpa_s = global->ifaces;
2a43101e
JM		 2268 if (wpa_s)
2269 wpas_p2p_service_flush(wpa_s);
b22128ef
JM		 2270 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2271 wpa_s = wpa_s->next;
2272 while (wpa_s) {
2273 enum wpa_driver_if_type type;
2274 tmp = global->ifaces;
2275 while (tmp &&
2276 (tmp == wpa_s ||
2277 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2278 tmp = tmp->next;
2279 }
2280 if (tmp == NULL)
2281 break;
2282 ifname = os_strdup(tmp->ifname);
2283 type = wpas_p2p_if_type(tmp->p2p_group_interface);
2284 wpa_supplicant_remove_iface(global, tmp);
2285 if (ifname)
2286 wpa_drv_if_remove(wpa_s, type, ifname);
2287 os_free(ifname);
2288 }
2289
743ef799
JM		 2290 /*
2291 * Deinit GO data on any possibly remaining interface (if main
2292 * interface is used as GO).
2293 */
2294 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2295 if (wpa_s->ap_iface)
2296 wpas_p2p_group_deinit(wpa_s);
2297 }
2298
b22128ef
JM		 2299 p2p_deinit(global->p2p);
2300 global->p2p = NULL;
2301}
2302
2303
2304static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2305{
2306 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
2307 return 1; /* P2P group requires a new interface in every case
2308 */
2309 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2310 return 0; /* driver does not support concurrent operations */
2311 if (wpa_s->global->ifaces->next)
2312 return 1; /* more that one interface already in use */
2313 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2314 return 1; /* this interface is already in use */
2315 return 0;
2316}
2317
2318
2319static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2320 const u8 *peer_addr,
2321 enum p2p_wps_method wps_method,
2322 int go_intent, const u8 *own_interface_addr,
2323 unsigned int force_freq, int persistent_group)
2324{
2325 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2326 go_intent, own_interface_addr, force_freq,
2327 persistent_group);
2328}
2329
2330
2331static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2332 const u8 *peer_addr,
2333 enum p2p_wps_method wps_method,
2334 int go_intent, const u8 *own_interface_addr,
2335 unsigned int force_freq, int persistent_group)
2336{
2337 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2338 go_intent, own_interface_addr, force_freq,
2339 persistent_group);
2340}
2341
2342
ef922c4a
JM		 2343static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2344 struct wpa_scan_results *scan_res)
b22128ef
JM		 2345{
2346 struct wpa_bss *bss;
f8d0131a 2347 int freq;
b22128ef 2348
ef922c4a 2349 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 2350
ef922c4a
JM		 2351 if (wpa_s->global->p2p_disabled)
2352 return;
b22128ef 2353
ef922c4a
JM		 2354 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2355 scan_res ? (int) scan_res->num : -1);
2356
2357 if (scan_res)
2358 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 2359
f8d0131a
JM		 2360 freq = p2p_get_oper_freq(wpa_s->global->p2p,
2361 wpa_s->pending_join_iface_addr);
2362 if (freq >= 0) {
2363 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2364 "from P2P peer table: %d MHz", freq);
2365 }
ef922c4a 2366 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
b22128ef 2367 if (bss) {
f8d0131a
JM		 2368 freq = bss->freq;
2369 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
2370 "from BSS table: %d MHz", freq);
2371 }
2372 if (freq > 0) {
b22128ef
JM		 2373 u16 method;
2374
2375 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2376 "prior to joining an existing group (GO " MACSTR
2377 " freq=%u MHz)",
f8d0131a 2378 MAC2STR(wpa_s->pending_join_dev_addr), freq);
b22128ef
JM		 2379 wpa_s->pending_pd_before_join = 1;
2380
ef922c4a 2381 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 2382 case WPS_PIN_LABEL:
2383 case WPS_PIN_DISPLAY:
2384 method = WPS_CONFIG_KEYPAD;
2385 break;
2386 case WPS_PIN_KEYPAD:
2387 method = WPS_CONFIG_DISPLAY;
2388 break;
2389 case WPS_PBC:
2390 method = WPS_CONFIG_PUSHBUTTON;
2391 break;
2392 default:
2393 method = 0;
2394 break;
2395 }
2396
ef922c4a
JM		 2397 if (p2p_prov_disc_req(wpa_s->global->p2p,
2398 wpa_s->pending_join_dev_addr, method, 1)
b22128ef
JM		 2399 < 0) {
2400 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2401 "Discovery Request before joining an "
2402 "existing group");
2403 wpa_s->pending_pd_before_join = 0;
2404 goto start;
2405 }
2406
2407 /*
2408 * Actual join operation will be started from the Action frame
2409 * TX status callback.
2410 */
ef922c4a 2411 return;
b22128ef
JM		 2412 }
2413
2414 wpa_printf(MSG_DEBUG, "P2P: Target BSS/GO not yet in BSS table - "
2415 "cannot send Provision Discovery Request");
2416
2417start:
2418 /* Start join operation immediately */
ef922c4a
JM		 2419 wpas_p2p_join_start(wpa_s);
2420}
2421
2422
2423static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2424{
2425 struct wpa_supplicant *wpa_s = eloop_ctx;
2426 int ret;
2427 struct wpa_driver_scan_params params;
2428 struct wpabuf *wps_ie, *ies;
2429
2430 os_memset(&params, 0, sizeof(params));
2431
2432 /* P2P Wildcard SSID */
2433 params.num_ssids = 1;
2434 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2435 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2436
2437 wpa_s->wps->dev.p2p = 1;
2438 wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
2439 WPS_REQ_ENROLLEE);
2440 if (wps_ie == NULL) {
2441 wpas_p2p_scan_res_join(wpa_s, NULL);
2442 return;
2443 }
2444
2445 ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
2446 if (ies == NULL) {
2447 wpabuf_free(wps_ie);
2448 wpas_p2p_scan_res_join(wpa_s, NULL);
2449 return;
2450 }
2451 wpabuf_put_buf(ies, wps_ie);
2452 wpabuf_free(wps_ie);
2453
2454 p2p_scan_ie(wpa_s->global->p2p, ies);
2455
2456 params.extra_ies = wpabuf_head(ies);
2457 params.extra_ies_len = wpabuf_len(ies);
2458
2459 /*
2460 * Run a scan to update BSS table and start Provision Discovery once
2461 * the new scan results become available.
2462 */
2463 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
2464 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
2465 ret = ieee80211_sta_req_scan(wpa_s, &params);
2466 else
2467 ret = wpa_drv_scan(wpa_s, &params);
2468
2469 wpabuf_free(ies);
2470
2471 if (ret) {
2472 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2473 "try again later");
2474 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2475 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2476 }
2477}
2478
2479
2480static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2481 const u8 *dev_addr, enum p2p_wps_method wps_method)
2482{
2483 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2484 MACSTR " dev " MACSTR ")",
2485 MAC2STR(iface_addr), MAC2STR(dev_addr));
2486
2487 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2488 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2489 wpa_s->pending_join_wps_method = wps_method;
2490
2491 /* Make sure we are not running find during connection establishment */
2492 wpas_p2p_stop_find(wpa_s);
2493
2494 wpas_p2p_join_scan(wpa_s, NULL);
2495 return 0;
b22128ef
JM		 2496}
2497
2498
2499static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2500{
2501 struct wpa_supplicant *group;
2502 struct p2p_go_neg_results res;
2503
2504 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2505 if (group == NULL)
2506 return -1;
3c5126a4 2507 if (group != wpa_s) {
b22128ef
JM		 2508 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2509 sizeof(group->p2p_pin));
3c5126a4
JM		 2510 group->p2p_wps_method = wpa_s->p2p_wps_method;
2511 }
b22128ef
JM		 2512
2513 group->p2p_in_provisioning = 1;
2514
2515 os_memset(&res, 0, sizeof(res));
2516 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2517 ETH_ALEN);
2518 res.wps_method = wpa_s->pending_join_wps_method;
2519 wpas_start_wps_enrollee(group, &res);
2520
3094d483
JM		 2521 /*
2522 * Allow a longer timeout for join-a-running-group than normal 15
2523 * second group formation timeout since the GO may not have authorized
2524 * our connection yet.
2525 */
2526 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
2527 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
2528 wpa_s, NULL);
2529
b22128ef
JM		 2530 return 0;
2531}
2532
2533
2534/**
2535 * wpas_p2p_connect - Request P2P Group Formation to be started
2536 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2537 * @peer_addr: Address of the peer P2P Device
2538 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2539 * @persistent_group: Whether to create a persistent group
2540 * @join: Whether to join an existing group (as a client) instead of starting
2541 * Group Owner negotiation; @peer_addr is BSSID in that case
2542 * @auth: Whether to only authorize the connection instead of doing that and
2543 * initiating Group Owner negotiation
2544 * @go_intent: GO Intent or -1 to use default
2545 * @freq: Frequency for the group or 0 for auto-selection
d054a462
JM		 2546 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
2547 * failure, -2 on failure due to channel not currently available,
2548 * -3 if forced channel is not supported
b22128ef
JM		 2549 */
2550int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2551 const char *pin, enum p2p_wps_method wps_method,
2552 int persistent_group, int join, int auth, int go_intent,
2553 int freq)
2554{
d054a462 2555 int force_freq = 0, oper_freq = 0;
b22128ef
JM		 2556 u8 bssid[ETH_ALEN];
2557 int ret = 0;
2558 enum wpa_driver_if_type iftype;
2559
2560 if (go_intent < 0)
2561 go_intent = wpa_s->conf->p2p_go_intent;
2562
2563 if (!auth)
2564 wpa_s->p2p_long_listen = 0;
2565
3c5126a4
JM		 2566 wpa_s->p2p_wps_method = wps_method;
2567
b22128ef
JM		 2568 if (pin)
2569 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2570 else if (wps_method == WPS_PIN_DISPLAY) {
2571 ret = wps_generate_pin();
2572 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2573 ret);
2574 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2575 wpa_s->p2p_pin);
2576 } else
2577 wpa_s->p2p_pin[0] = '\0';
2578
2579 if (join) {
4147a2cc 2580 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
108def93
JM		 2581 if (auth) {
2582 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2583 "connect a running group from " MACSTR,
2584 MAC2STR(peer_addr));
2585 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2586 return ret;
2587 }
4147a2cc 2588 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
b22128ef 2589 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4147a2cc 2590 iface_addr) < 0) {
b22128ef 2591 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4147a2cc
JM		 2592 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
2593 dev_addr);
2594 }
2595 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method) <
b22128ef
JM		 2596 0)
2597 return -1;
2598 return ret;
2599 }
2600
d054a462
JM		 2601 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2602 wpa_s->assoc_freq)
2603 oper_freq = wpa_s->assoc_freq;
b22128ef 2604 else {
d054a462
JM		 2605 oper_freq = wpa_drv_shared_freq(wpa_s);
2606 if (oper_freq < 0)
2607 oper_freq = 0;
b22128ef
JM		 2608 }
2609
d054a462
JM		 2610 if (freq > 0) {
2611 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
2612 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
2613 "(%u MHz) is not supported for P2P uses",
2614 freq);
2615 return -3;
2616 }
2617
2618 if (oper_freq > 0 && freq != oper_freq &&
2619 !(wpa_s->drv_flags &
2620 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2621 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2622 "on %u MHz while connected on another "
2623 "channel (%u MHz)", freq, oper_freq);
2624 return -2;
2625 }
2626 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2627 "requested channel (%u MHz)", freq);
2628 force_freq = freq;
2629 } else if (oper_freq > 0 &&
2630 !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
2631 if (!(wpa_s->drv_flags &
2632 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
2633 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
2634 "while connected on non-P2P supported "
2635 "channel (%u MHz)", oper_freq);
2636 return -2;
2637 }
2638 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
2639 "(%u MHz) not available for P2P - try to use "
2640 "another channel", oper_freq);
2641 force_freq = 0;
2642 } else if (oper_freq > 0) {
b22128ef
JM		 2643 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2644 "channel we are already using (%u MHz) on another "
d054a462
JM		 2645 "interface", oper_freq);
2646 force_freq = oper_freq;
b22128ef
JM		 2647 }
2648
2649 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
2650
2651 if (!wpa_s->create_p2p_iface) {
2652 if (auth) {
2653 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2654 go_intent, wpa_s->own_addr,
2655 force_freq, persistent_group)
2656 < 0)
2657 return -1;
2658 return ret;
2659 }
2660 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
2661 go_intent, wpa_s->own_addr,
2662 force_freq, persistent_group) < 0)
2663 return -1;
2664 return ret;
2665 }
2666
2667 /* Prepare to add a new interface for the group */
2668 iftype = WPA_IF_P2P_GROUP;
2669 if (join)
2670 iftype = WPA_IF_P2P_CLIENT;
2671 else if (go_intent == 15)
2672 iftype = WPA_IF_P2P_GO;
2673 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
2674 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2675 "interface for the group");
2676 return -1;
2677 }
2678
2679 if (auth) {
2680 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2681 go_intent,
2682 wpa_s->pending_interface_addr,
2683 force_freq, persistent_group) < 0)
2684 return -1;
2685 return ret;
2686 }
2687 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method, go_intent,
2688 wpa_s->pending_interface_addr,
2689 force_freq, persistent_group) < 0) {
2690 wpas_p2p_remove_pending_group_interface(wpa_s);
2691 return -1;
2692 }
2693 return ret;
2694}
2695
2696
2697/**
2698 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
2699 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2700 * @freq: Frequency of the channel in MHz
2701 * @duration: Duration of the stay on the channel in milliseconds
2702 *
2703 * This callback is called when the driver indicates that it has started the
2704 * requested remain-on-channel duration.
2705 */
2706void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2707 unsigned int freq, unsigned int duration)
2708{
07a30a66 2709 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 2710 wpa_s->off_channel_freq = freq;
2711 wpas_send_action_cb(wpa_s, NULL);
2712 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
2713 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
2714 wpa_s->pending_listen_duration);
2715 wpa_s->pending_listen_freq = 0;
2716 }
2717}
2718
2719
2720static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
2721 unsigned int timeout)
2722{
2723 /* Limit maximum Listen state time based on driver limitation. */
2724 if (timeout > wpa_s->max_remain_on_chan)
2725 timeout = wpa_s->max_remain_on_chan;
2726
2727 return p2p_listen(wpa_s->global->p2p, timeout);
2728}
2729
2730
2731/**
2732 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
2733 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2734 * @freq: Frequency of the channel in MHz
2735 *
2736 * This callback is called when the driver indicates that a remain-on-channel
2737 * operation has been completed, i.e., the duration on the requested channel
2738 * has timed out.
2739 */
2740void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2741 unsigned int freq)
2742{
1cc3a29d
JM		 2743 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
2744 "(p2p_long_listen=%d pending_action_tx=%p)",
2745 wpa_s->p2p_long_listen, wpa_s->pending_action_tx);
b22128ef
JM		 2746 wpa_s->off_channel_freq = 0;
2747 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
2748 return; /* P2P module started a new operation */
2749 if (wpa_s->pending_action_tx)
2750 return;
2751 if (wpa_s->p2p_long_listen > 0)
2752 wpa_s->p2p_long_listen -= 5;
2753 if (wpa_s->p2p_long_listen > 0) {
2754 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
2755 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen * 1000);
2756 }
2757}
2758
2759
2760/**
2761 * wpas_p2p_group_remove - Remove a P2P group
2762 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2763 * @ifname: Network interface name of the group interface or "*" to remove all
2764 * groups
2765 * Returns: 0 on success, -1 on failure
2766 *
2767 * This function is used to remove a P2P group. This can be used to disconnect
2768 * from a group in which the local end is a P2P Client or to end a P2P Group in
2769 * case the local end is the Group Owner. If a virtual network interface was
2770 * created for this group, that interface will be removed. Otherwise, only the
2771 * configured P2P group network will be removed from the interface.
2772 */
2773int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
2774{
2775 struct wpa_global *global = wpa_s->global;
2776
2777 if (os_strcmp(ifname, "*") == 0) {
2778 struct wpa_supplicant *prev;
2779 wpa_s = global->ifaces;
2780 while (wpa_s) {
2781 prev = wpa_s;
2782 wpa_s = wpa_s->next;
2783 wpas_p2p_group_delete(prev);
2784 }
2785 return 0;
2786 }
2787
2788 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2789 if (os_strcmp(wpa_s->ifname, ifname) == 0)
2790 break;
2791 }
2792
2793 if (wpa_s == NULL)
2794 return -1;
2795
2796 wpas_p2p_group_delete(wpa_s);
2797
2798 return 0;
2799}
2800
2801
2802static void wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
2803 struct p2p_go_neg_results *params,
2804 int freq)
2805{
2806 u8 bssid[ETH_ALEN];
2807 int res;
2808
2809 os_memset(params, 0, sizeof(*params));
2810 params->role_go = 1;
2811 params->freq = 2412;
2812 if (freq)
2813 params->freq = freq;
2814 else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
2815 wpa_s->conf->p2p_oper_channel >= 1 &&
2816 wpa_s->conf->p2p_oper_channel <= 11)
2817 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
2818 else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
2819 wpa_s->conf->p2p_oper_reg_class == 118)
2820 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
2821 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2822 wpa_s->assoc_freq && !freq) {
2823 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
2824 "already using");
2825 params->freq = wpa_s->assoc_freq;
2826 }
2827
2828 res = wpa_drv_shared_freq(wpa_s);
2829 if (res > 0 && !freq) {
2830 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
2831 "already using on a shared interface");
2832 params->freq = res;
2833 }
2834}
2835
2836
2837static struct wpa_supplicant *
2838wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
2839 int go)
2840{
2841 struct wpa_supplicant *group_wpa_s;
2842
2843 if (!wpas_p2p_create_iface(wpa_s))
2844 return wpa_s;
2845
2846 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2847 WPA_IF_P2P_CLIENT) < 0)
2848 return NULL;
2849 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
2850 if (group_wpa_s == NULL) {
2851 wpas_p2p_remove_pending_group_interface(wpa_s);
2852 return NULL;
2853 }
2854
2855 return group_wpa_s;
2856}
2857
2858
2859/**
2860 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
2861 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2862 * @persistent_group: Whether to create a persistent group
2863 * @freq: Frequency for the group or 0 to indicate no hardcoding
2864 * Returns: 0 on success, -1 on failure
2865 *
2866 * This function creates a new P2P group with the local end as the Group Owner,
2867 * i.e., without using Group Owner Negotiation.
2868 */
2869int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
2870 int freq)
2871{
2872 struct p2p_go_neg_results params;
2873
4ae4650b
JM		 2874 if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
2875 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
2876 "(%u MHz) is not supported for P2P uses",
2877 freq);
2878 return -1;
2879 }
2880
b22128ef
JM		 2881 wpas_p2p_init_go_params(wpa_s, &params, freq);
2882 p2p_go_params(wpa_s->global->p2p, &params);
2883 params.persistent_group = persistent_group;
2884
2885 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
2886 if (wpa_s == NULL)
2887 return -1;
2888 wpas_start_wps_go(wpa_s, &params, 0);
2889
2890 return 0;
2891}
2892
2893
2894static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
2895 struct wpa_ssid *params, int addr_allocated)
2896{
2897 struct wpa_ssid *ssid;
2898
2899 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
2900 if (wpa_s == NULL)
2901 return -1;
2902
2903 wpa_supplicant_ap_deinit(wpa_s);
2904
2905 ssid = wpa_config_add_network(wpa_s->conf);
2906 if (ssid == NULL)
2907 return -1;
2908 wpas_notify_network_added(wpa_s, ssid);
2909 wpa_config_set_network_defaults(ssid);
2910 ssid->temporary = 1;
2911 ssid->proto = WPA_PROTO_RSN;
2912 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
2913 ssid->group_cipher = WPA_CIPHER_CCMP;
2914 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
2915 ssid->ssid = os_malloc(params->ssid_len);
2916 if (ssid->ssid == NULL) {
2917 wpas_notify_network_removed(wpa_s, ssid);
2918 wpa_config_remove_network(wpa_s->conf, ssid->id);
2919 return -1;
2920 }
2921 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
2922 ssid->ssid_len = params->ssid_len;
2923 ssid->p2p_group = 1;
2924 if (params->psk_set) {
2925 os_memcpy(ssid->psk, params->psk, 32);
2926 ssid->psk_set = 1;
2927 }
2928 if (params->passphrase)
2929 ssid->passphrase = os_strdup(params->passphrase);
2930
2931 wpa_supplicant_select_network(wpa_s, ssid);
2932
2933 wpa_s->show_group_started = 1;
2934
2935 return 0;
2936}
2937
2938
2939int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
2940 struct wpa_ssid *ssid, int addr_allocated,
2941 int freq)
2942{
2943 struct p2p_go_neg_results params;
2944
2945 if (ssid->disabled != 2 || ssid->ssid == NULL)
2946 return -1;
2947
2948 wpa_s->p2p_long_listen = 0;
2949 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2950
2951 if (ssid->mode == WPAS_MODE_INFRA)
2952 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
2953
2954 if (ssid->mode != WPAS_MODE_P2P_GO)
2955 return -1;
2956
2957 wpas_p2p_init_go_params(wpa_s, &params, freq);
2958
2959 params.role_go = 1;
2960 if (ssid->passphrase == NULL ||
2961 os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
2962 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
2963 "group");
2964 return -1;
2965 }
2966 os_strlcpy(params.passphrase, ssid->passphrase,
2967 sizeof(params.passphrase));
2968 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
2969 params.ssid_len = ssid->ssid_len;
2970 params.persistent_group = 1;
2971
2972 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
2973 if (wpa_s == NULL)
2974 return -1;
2975
2976 wpas_start_wps_go(wpa_s, &params, 0);
2977
2978 return 0;
2979}
2980
2981
2982static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
2983 struct wpabuf *proberesp_ies)
2984{
2985 struct wpa_supplicant *wpa_s = ctx;
2986 if (wpa_s->ap_iface) {
2987 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
2988 if (beacon_ies) {
2989 wpabuf_free(hapd->p2p_beacon_ie);
2990 hapd->p2p_beacon_ie = beacon_ies;
2991 }
2992 wpabuf_free(hapd->p2p_probe_resp_ie);
2993 hapd->p2p_probe_resp_ie = proberesp_ies;
2994 } else {
2995 wpabuf_free(beacon_ies);
2996 wpabuf_free(proberesp_ies);
2997 }
2998 wpa_supplicant_ap_update_beacon(wpa_s);
2999}
3000
3001
3002struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
3003 int persistent_group,
3004 int group_formation)
3005{
3006 struct p2p_group *group;
3007 struct p2p_group_config *cfg;
3008
3009 cfg = os_zalloc(sizeof(*cfg));
3010 if (cfg == NULL)
3011 return NULL;
3012
3013 cfg->persistent_group = persistent_group;
3014 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3015 cfg->cb_ctx = wpa_s;
3016 cfg->ie_update = wpas_p2p_ie_update;
3017
3018 group = p2p_group_init(wpa_s->global->p2p, cfg);
3019 if (group == NULL)
3020 os_free(cfg);
3021 if (!group_formation)
3022 p2p_group_notif_formation_done(group);
3023 wpa_s->p2p_group = group;
3024 return group;
3025}
3026
3027
3028void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3029 int registrar)
3030{
3031 if (!wpa_s->p2p_in_provisioning) {
3032 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
3033 "provisioning not in progress");
3034 return;
3035 }
3036
3037 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
3038 NULL);
3039 if (wpa_s->global->p2p)
3040 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
3041 wpas_group_formation_completed(wpa_s, 1);
3042}
3043
3044
3045int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3046 const char *config_method)
3047{
3048 u16 config_methods;
3049
3050 if (os_strcmp(config_method, "display") == 0)
3051 config_methods = WPS_CONFIG_DISPLAY;
3052 else if (os_strcmp(config_method, "keypad") == 0)
3053 config_methods = WPS_CONFIG_KEYPAD;
3054 else if (os_strcmp(config_method, "pbc") == 0 ||
3055 os_strcmp(config_method, "pushbutton") == 0)
3056 config_methods = WPS_CONFIG_PUSHBUTTON;
3057 else
3058 return -1;
3059
3060 if (wpa_s->global->p2p == NULL)
3061 return -1;
3062
3063 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
3064 config_methods, 0);
3065}
3066
3067
3068int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
3069 char *end)
3070{
3071 return p2p_scan_result_text(ies, ies_len, buf, end);
3072}
3073
3074
1cc3a29d
JM		 3075static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
3076{
3077 if (!wpa_s->pending_action_tx)
3078 return;
3079
3080 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
3081 "operation request");
3082 wpabuf_free(wpa_s->pending_action_tx);
3083 wpa_s->pending_action_tx = NULL;
3084}
3085
3086
b22128ef
JM		 3087int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
3088 enum p2p_discovery_type type)
3089{
1cc3a29d 3090 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef
JM		 3091 wpa_s->p2p_long_listen = 0;
3092
3093 return p2p_find(wpa_s->global->p2p, timeout, type);
3094}
3095
3096
3097void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
3098{
1cc3a29d 3099 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef 3100 wpa_s->p2p_long_listen = 0;
ef922c4a 3101 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 3102
3103 p2p_stop_find(wpa_s->global->p2p);
3104
3105 wpas_p2p_remove_pending_group_interface(wpa_s);
3106}
3107
3108
3109static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
3110{
3111 struct wpa_supplicant *wpa_s = eloop_ctx;
3112 wpa_s->p2p_long_listen = 0;
3113}
3114
3115
3116int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
3117{
3118 int res;
3119
1cc3a29d
JM		 3120 wpas_p2p_clear_pending_action_tx(wpa_s);
3121
b22128ef
JM		 3122 if (timeout == 0) {
3123 /*
3124 * This is a request for unlimited Listen state. However, at
3125 * least for now, this is mapped to a Listen state for one
3126 * hour.
3127 */
3128 timeout = 3600;
3129 }
3130 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3131 wpa_s->p2p_long_listen = 0;
3132
3133 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
3134 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
3135 wpa_s->p2p_long_listen = timeout;
3136 eloop_register_timeout(timeout, 0,
3137 wpas_p2p_long_listen_timeout,
3138 wpa_s, NULL);
3139 }
3140
3141 return res;
3142}
3143
3144
4c08c0bd 3145int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 3146 u8 *buf, size_t len, int p2p_group)
3147{
4c08c0bd
JM		 3148 struct wpabuf *p2p_ie;
3149 int ret;
3150
b22128ef
JM		 3151 if (wpa_s->global->p2p_disabled)
3152 return -1;
3153 if (wpa_s->global->p2p == NULL)
3154 return -1;
e1f1509b
JM		 3155 if (bss == NULL)
3156 return -1;
b22128ef 3157
4c08c0bd
JM		 3158 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3159 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3160 p2p_group, p2p_ie);
3161 wpabuf_free(p2p_ie);
3162
3163 return ret;
b22128ef
JM		 3164}
3165
3166
3167int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
3168 const u8 *ie, size_t ie_len)
3169{
3170 if (wpa_s->global->p2p_disabled)
3171 return 0;
3172 if (wpa_s->global->p2p == NULL)
3173 return 0;
3174
3175 return p2p_probe_req_rx(wpa_s->global->p2p, addr, ie, ie_len);
3176}
3177
3178
3179void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3180 const u8 *sa, const u8 *bssid,
3181 u8 category, const u8 *data, size_t len, int freq)
3182{
3183 if (wpa_s->global->p2p_disabled)
3184 return;
3185 if (wpa_s->global->p2p == NULL)
3186 return;
3187
3188 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3189 freq);
3190}
3191
3192
3193void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3194{
3195 if (wpa_s->global->p2p_disabled)
3196 return;
3197 if (wpa_s->global->p2p == NULL)
3198 return;
3199
3200 p2p_scan_ie(wpa_s->global->p2p, ies);
3201}
3202
3203
3204void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3205{
3206 p2p_group_deinit(wpa_s->p2p_group);
3207 wpa_s->p2p_group = NULL;
3208}
3209
3210
3211int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3212{
3213 wpa_s->p2p_long_listen = 0;
3214
3215 return p2p_reject(wpa_s->global->p2p, addr);
3216}
3217
3218
3219/* Invite to reinvoke a persistent group */
3220int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3221 struct wpa_ssid *ssid, const u8 *go_dev_addr)
3222{
3223 enum p2p_invite_role role;
3224 u8 *bssid = NULL;
3225
3226 if (ssid->mode == WPAS_MODE_P2P_GO) {
3227 role = P2P_INVITE_ROLE_GO;
3228 if (peer_addr == NULL) {
3229 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3230 "address in invitation command");
3231 return -1;
3232 }
3233 if (wpas_p2p_create_iface(wpa_s)) {
3234 if (wpas_p2p_add_group_interface(wpa_s,
3235 WPA_IF_P2P_GO) < 0) {
3236 wpa_printf(MSG_ERROR, "P2P: Failed to "
3237 "allocate a new interface for the "
3238 "group");
3239 return -1;
3240 }
3241 bssid = wpa_s->pending_interface_addr;
3242 } else
3243 bssid = wpa_s->own_addr;
3244 } else {
3245 role = P2P_INVITE_ROLE_CLIENT;
3246 peer_addr = ssid->bssid;
3247 }
3248 wpa_s->pending_invite_ssid_id = ssid->id;
3249
3250 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3251 ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3252}
3253
3254
3255/* Invite to join an active group */
3256int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3257 const u8 *peer_addr, const u8 *go_dev_addr)
3258{
3259 struct wpa_global *global = wpa_s->global;
3260 enum p2p_invite_role role;
3261 u8 *bssid = NULL;
3262 struct wpa_ssid *ssid;
3263
3264 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3265 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3266 break;
3267 }
3268 if (wpa_s == NULL) {
3269 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3270 return -1;
3271 }
3272
3273 ssid = wpa_s->current_ssid;
3274 if (ssid == NULL) {
3275 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3276 "invitation");
3277 return -1;
3278 }
3279
3280 if (ssid->mode == WPAS_MODE_P2P_GO) {
3281 role = P2P_INVITE_ROLE_ACTIVE_GO;
3282 bssid = wpa_s->own_addr;
3283 if (go_dev_addr == NULL)
2e062d5d 3284 go_dev_addr = wpa_s->parent->own_addr;
b22128ef
JM		 3285 } else {
3286 role = P2P_INVITE_ROLE_CLIENT;
3287 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3288 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3289 "invite to current group");
3290 return -1;
3291 }
3292 bssid = wpa_s->bssid;
3293 if (go_dev_addr == NULL &&
3294 !is_zero_ether_addr(wpa_s->go_dev_addr))
3295 go_dev_addr = wpa_s->go_dev_addr;
3296 }
3297 wpa_s->pending_invite_ssid_id = -1;
3298
3299 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
d9d6a58c
JM		 3300 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
3301 go_dev_addr, 0);
b22128ef
JM		 3302}
3303
3304
3305void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3306{
3307 struct wpa_ssid *ssid = wpa_s->current_ssid;
3308 const char *ssid_txt;
3309 u8 go_dev_addr[ETH_ALEN];
3310 int persistent;
3311
3312 if (!wpa_s->show_group_started || !ssid)
3313 return;
3314
3315 wpa_s->show_group_started = 0;
3316
3317 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3318 os_memset(go_dev_addr, 0, ETH_ALEN);
3319 if (ssid->bssid_set)
3320 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3321 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3322 ssid->ssid_len);
3323 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3324
3325 if (ssid->passphrase == NULL && ssid->psk_set) {
3326 char psk[65];
3327 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3328 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 3329 "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
3330 MACSTR "%s",
3331 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
3332 MAC2STR(go_dev_addr),
b22128ef
JM		 3333 persistent ? " [PERSISTENT]" : "");
3334 } else {
3335 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 3336 "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
3337 "go_dev_addr=" MACSTR "%s",
3338 wpa_s->ifname, ssid_txt, ssid->frequency,
b22128ef
JM		 3339 ssid->passphrase ? ssid->passphrase : "",
3340 MAC2STR(go_dev_addr),
3341 persistent ? " [PERSISTENT]" : "");
3342 }
3343
3344 if (persistent)
3345 wpas_p2p_store_persistent_group(wpa_s->parent, ssid,
3346 go_dev_addr);
3347}
3348
3349
3350int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3351 u32 interval1, u32 duration2, u32 interval2)
3352{
3353 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3354 wpa_s->current_ssid == NULL ||
3355 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3356 return -1;
3357
3358 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3359 wpa_s->own_addr, wpa_s->assoc_freq,
3360 duration1, interval1, duration2, interval2);
3361}
3362
3363
3364int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3365 unsigned int interval)
3366{
3367 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3368}
3369
3370
3371void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3372 u16 reason_code, const u8 *ie, size_t ie_len)
3373{
3374 if (wpa_s->global->p2p_disabled)
3375 return;
3376
3377 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3378}
3379
3380
3381void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3382 u16 reason_code, const u8 *ie, size_t ie_len)
3383{
3384 if (wpa_s->global->p2p_disabled)
3385 return;
3386
3387 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3388}
3389
3390
3391void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
3392{
3393 struct p2p_data *p2p = wpa_s->global->p2p;
3394
3395 if (p2p == NULL)
3396 return;
3397
4c010834
KL		 3398 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
3399 return;
3400
b22128ef
JM		 3401 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
3402 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
3403
3404 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) {
3405 u8 pri_dev_type[8];
3406 if (wpa_s->conf->device_type) {
3407 if (wps_dev_type_str2bin(wpa_s->conf->device_type,
3408 pri_dev_type) < 0) {
3409 wpa_printf(MSG_ERROR, "P2P: Invalid "
3410 "device_type");
3411 } else
3412 p2p_set_pri_dev_type(p2p, pri_dev_type);
3413 }
3414 }
3415
3416 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
3417 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
3418 size_t num = 0;
3419 int i;
3420 for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
3421 if (wpa_s->conf->sec_device_type[i] == NULL)
3422 continue;
3423 if (wps_dev_type_str2bin(
3424 wpa_s->conf->sec_device_type[i],
3425 sec_dev_type[num]) < 0) {
3426 wpa_printf(MSG_ERROR, "P2P: Invalid "
3427 "sec_device_type");
3428 continue;
3429 }
3430 num++;
3431 if (num == P2P_SEC_DEVICE_TYPES)
3432 break;
3433 }
3434 p2p_set_sec_dev_types(p2p, (void *) sec_dev_type, num);
3435 }
3436
3437 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
3438 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3439 char country[3];
3440 country[0] = wpa_s->conf->country[0];
3441 country[1] = wpa_s->conf->country[1];
3442 country[2] = 0x04;
3443 p2p_set_country(p2p, country);
3444 }
3445
3446 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
3447 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
3448 wpa_s->conf->p2p_ssid_postfix ?
3449 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
3450 0);
3451 }
0f66abd2
SS		 3452
3453 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
3454 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
b22128ef 3455}
aefb53bd
JM		 3456
3457
3458int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
3459 int duration)
3460{
3461 if (!wpa_s->ap_iface)
3462 return -1;
3463 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
3464 duration);
3465}
72044390
JM		 3466
3467
3468int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
3469{
3470 if (wpa_s->global->p2p_disabled)
3471 return -1;
3472 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3473 return -1;
3474
3475 wpa_s->global->cross_connection = enabled;
3476 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
3477
3478 if (!enabled) {
3479 struct wpa_supplicant *iface;
3480
3481 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
3482 {
3483 if (iface->cross_connect_enabled == 0)
3484 continue;
3485
3486 iface->cross_connect_enabled = 0;
3487 iface->cross_connect_in_use = 0;
3488 wpa_msg(iface->parent, MSG_INFO,
3489 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3490 iface->ifname, iface->cross_connect_uplink);
3491 }
3492 }
3493
3494 return 0;
3495}
3496
3497
3498static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
3499{
3500 struct wpa_supplicant *iface;
3501
3502 if (!uplink->global->cross_connection)
3503 return;
3504
3505 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3506 if (!iface->cross_connect_enabled)
3507 continue;
3508 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3509 0)
3510 continue;
3511 if (iface->ap_iface == NULL)
3512 continue;
3513 if (iface->cross_connect_in_use)
3514 continue;
3515
3516 iface->cross_connect_in_use = 1;
3517 wpa_msg(iface->parent, MSG_INFO,
3518 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3519 iface->ifname, iface->cross_connect_uplink);
3520 }
3521}
3522
3523
3524static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
3525{
3526 struct wpa_supplicant *iface;
3527
3528 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3529 if (!iface->cross_connect_enabled)
3530 continue;
3531 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3532 0)
3533 continue;
3534 if (!iface->cross_connect_in_use)
3535 continue;
3536
3537 wpa_msg(iface->parent, MSG_INFO,
3538 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3539 iface->ifname, iface->cross_connect_uplink);
3540 iface->cross_connect_in_use = 0;
3541 }
3542}
3543
3544
3545void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
3546{
3547 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
3548 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
3549 wpa_s->cross_connect_disallowed)
3550 wpas_p2p_disable_cross_connect(wpa_s);
3551 else
3552 wpas_p2p_enable_cross_connect(wpa_s);
3553}
3554
3555
3556void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
3557{
3558 wpas_p2p_disable_cross_connect(wpa_s);
3559}
3560
3561
3562static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
3563{
3564 struct wpa_supplicant *iface;
3565
3566 if (!wpa_s->global->cross_connection)
3567 return;
3568
3569 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
3570 if (iface == wpa_s)
3571 continue;
3572 if (iface->drv_flags &
3573 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
3574 continue;
3575 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
3576 continue;
3577
3578 wpa_s->cross_connect_enabled = 1;
3579 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
3580 sizeof(wpa_s->cross_connect_uplink));
3581 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
3582 "%s to %s whenever uplink is available",
3583 wpa_s->ifname, wpa_s->cross_connect_uplink);
3584
3585 if (iface->ap_iface || iface->current_ssid == NULL ||
3586 iface->current_ssid->mode != WPAS_MODE_INFRA ||
3587 iface->cross_connect_disallowed ||
3588 iface->wpa_state != WPA_COMPLETED)
3589 break;
3590
3591 wpa_s->cross_connect_in_use = 1;
3592 wpa_msg(wpa_s->parent, MSG_INFO,
3593 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3594 wpa_s->ifname, wpa_s->cross_connect_uplink);
3595 break;
3596 }
3597}
b73bf0a7
JM		 3598
3599
3600int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
3601{
3602 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
3603 !wpa_s->p2p_in_provisioning)
3604 return 0; /* not P2P client operation */
3605
3606 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
3607 "session overlap");
3608 wpas_group_formation_completed(wpa_s, 0);
3609 return 1;
3610}
b5c9da8d
JM		 3611
3612
3613void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
3614{
3615 struct p2p_channels chan;
3616
3617 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
3618 return;
3619
3620 os_memset(&chan, 0, sizeof(chan));
3621 if (wpas_p2p_setup_channels(wpa_s, &chan)) {
3622 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
3623 "channel list");
3624 return;
3625 }
3626
3627 p2p_update_channel_list(wpa_s->global->p2p, &chan);
3628}
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