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P2P: Add support for cross connection
[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
448 "%s GO ssid=\"%s\" psk=%s go_dev_addr=" MACSTR "%s",
449 wpa_s->ifname, ssid_txt, psk, MAC2STR(go_dev_addr),
450 persistent ? " [PERSISTENT]" : "");
72044390 451 wpas_p2p_cross_connect_setup(wpa_s);
b22128ef
JM		 452 } else {
453 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
454 "%s GO ssid=\"%s\" passphrase=\"%s\" go_dev_addr="
455 MACSTR "%s",
456 wpa_s->ifname, ssid_txt,
457 ssid && ssid->passphrase ? ssid->passphrase : "",
458 MAC2STR(go_dev_addr),
459 persistent ? " [PERSISTENT]" : "");
72044390 460 wpas_p2p_cross_connect_setup(wpa_s);
b22128ef
JM		 461 }
462
463 if (persistent)
464 wpas_p2p_store_persistent_group(wpa_s->parent, ssid,
465 go_dev_addr);
466}
467
468
469static void wpas_send_action_cb(void *eloop_ctx, void *timeout_ctx)
470{
471 struct wpa_supplicant *wpa_s = eloop_ctx;
472 struct wpa_supplicant *iface;
473 int res;
474 int without_roc;
475
476 without_roc = wpa_s->pending_action_without_roc;
477 wpa_s->pending_action_without_roc = 0;
478
479 if (wpa_s->pending_action_tx == NULL)
480 return;
481
482 if (wpa_s->off_channel_freq != wpa_s->pending_action_freq &&
483 wpa_s->pending_action_freq != 0) {
484 wpa_printf(MSG_DEBUG, "P2P: Pending Action frame TX "
485 "waiting for another freq=%u (off_channel_freq=%u)",
486 wpa_s->pending_action_freq,
487 wpa_s->off_channel_freq);
488 if (without_roc && wpa_s->off_channel_freq == 0) {
489 /*
490 * We may get here if wpas_send_action() found us to be
491 * on the correct channel, but remain-on-channel cancel
492 * event was received before getting here.
493 */
494 wpa_printf(MSG_DEBUG, "P2P: Schedule "
495 "remain-on-channel to send Action frame");
496 if (wpa_drv_remain_on_channel(
497 wpa_s, wpa_s->pending_action_freq, 200) <
498 0) {
499 wpa_printf(MSG_DEBUG, "P2P: Failed to request "
500 "driver to remain on channel (%u "
501 "MHz) for Action Frame TX",
502 wpa_s->pending_action_freq);
07a30a66
JM		 503 } else
504 wpa_s->roc_waiting_drv_freq =
505 wpa_s->pending_action_freq;
b22128ef
JM		 506 }
507 return;
508 }
509
510 /*
511 * This call is likely going to be on the P2P device instance if the
512 * driver uses a separate interface for that purpose. However, some
513 * Action frames are actually sent within a P2P Group and when that is
514 * the case, we need to follow power saving (e.g., GO buffering the
d6ae9950 515 * frame for a client in PS mode or a client following the advertised
b22128ef
JM		 516 * NoA from its GO). To make that easier for the driver, select the
517 * correct group interface here.
518 */
519 if (os_memcmp(wpa_s->pending_action_src, wpa_s->own_addr, ETH_ALEN) !=
520 0) {
521 /*
522 * Try to find a group interface that matches with the source
523 * address.
524 */
525 iface = wpa_s->global->ifaces;
526 while (iface) {
527 if (os_memcmp(wpa_s->pending_action_src,
528 iface->own_addr, ETH_ALEN) == 0)
529 break;
d6ae9950 530 iface = iface->next;
b22128ef
JM		 531 }
532 if (iface) {
533 wpa_printf(MSG_DEBUG, "P2P: Use group interface %s "
534 "instead of interface %s for Action TX",
535 iface->ifname, wpa_s->ifname);
536 } else
537 iface = wpa_s;
538 } else
539 iface = wpa_s;
540
541 wpa_printf(MSG_DEBUG, "P2P: Sending pending Action frame to "
542 MACSTR " using interface %s",
543 MAC2STR(wpa_s->pending_action_dst), iface->ifname);
544 res = wpa_drv_send_action(iface, wpa_s->pending_action_freq,
545 wpa_s->pending_action_dst,
546 wpa_s->pending_action_src,
547 wpa_s->pending_action_bssid,
548 wpabuf_head(wpa_s->pending_action_tx),
549 wpabuf_len(wpa_s->pending_action_tx));
550 if (res) {
551 wpa_printf(MSG_DEBUG, "P2P: Failed to send the pending "
552 "Action frame");
553 /*
554 * Use fake TX status event to allow P2P state machine to
555 * continue.
556 */
557 wpas_send_action_tx_status(
558 wpa_s, wpa_s->pending_action_dst,
559 wpabuf_head(wpa_s->pending_action_tx),
560 wpabuf_len(wpa_s->pending_action_tx), 0);
561 }
562}
563
564
565void wpas_send_action_tx_status(struct wpa_supplicant *wpa_s, const u8 *dst,
566 const u8 *data, size_t data_len, int ack)
567{
568 if (wpa_s->global->p2p_disabled)
569 return;
570
571 if (wpa_s->pending_action_tx == NULL) {
572 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - no "
573 "pending operation");
574 return;
575 }
576
577 if (os_memcmp(dst, wpa_s->pending_action_dst, ETH_ALEN) != 0) {
578 wpa_printf(MSG_DEBUG, "P2P: Ignore Action TX status - unknown "
579 "destination address");
580 return;
581 }
582
583 wpabuf_free(wpa_s->pending_action_tx);
584 wpa_s->pending_action_tx = NULL;
585
586 p2p_send_action_cb(wpa_s->global->p2p, wpa_s->pending_action_freq,
587 wpa_s->pending_action_dst,
588 wpa_s->pending_action_src,
589 wpa_s->pending_action_bssid,
590 ack);
591
592 if (wpa_s->pending_pd_before_join &&
593 (os_memcmp(wpa_s->pending_action_dst, wpa_s->pending_join_dev_addr,
594 ETH_ALEN) == 0 ||
595 os_memcmp(wpa_s->pending_action_dst,
596 wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
597 wpa_s->pending_pd_before_join = 0;
598 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
599 "join-existing-group operation");
600 wpas_p2p_join_start(wpa_s);
601 }
602}
603
604
605static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
606 const u8 *src, const u8 *bssid, const u8 *buf,
607 size_t len, unsigned int wait_time)
608{
609 struct wpa_supplicant *wpa_s = ctx;
610
611 wpa_printf(MSG_DEBUG, "P2P: Send action frame: freq=%d dst=" MACSTR
612 " src=" MACSTR " bssid=" MACSTR,
613 freq, MAC2STR(dst), MAC2STR(src), MAC2STR(bssid));
614
615 if (wpa_s->pending_action_tx) {
616 wpa_printf(MSG_DEBUG, "P2P: Dropped pending Action frame TX "
617 "to " MACSTR, MAC2STR(wpa_s->pending_action_dst));
618 wpabuf_free(wpa_s->pending_action_tx);
619 }
620 wpa_s->pending_action_tx = wpabuf_alloc(len);
621 if (wpa_s->pending_action_tx == NULL)
622 return -1;
623 wpabuf_put_data(wpa_s->pending_action_tx, buf, len);
624 os_memcpy(wpa_s->pending_action_src, src, ETH_ALEN);
625 os_memcpy(wpa_s->pending_action_dst, dst, ETH_ALEN);
626 os_memcpy(wpa_s->pending_action_bssid, bssid, ETH_ALEN);
627 wpa_s->pending_action_freq = freq;
628
629 if (wpa_s->off_channel_freq == freq || freq == 0) {
630 /* Already on requested channel; send immediately */
631 /* TODO: Would there ever be need to extend the current
632 * duration on the channel? */
633 wpa_s->pending_action_without_roc = 1;
634 eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
635 eloop_register_timeout(0, 0, wpas_send_action_cb, wpa_s, NULL);
636 return 0;
637 }
638 wpa_s->pending_action_without_roc = 0;
639
07a30a66
JM		 640 if (wpa_s->roc_waiting_drv_freq == freq) {
641 wpa_printf(MSG_DEBUG, "P2P: Already waiting for driver to get "
642 "to frequency %u MHz; continue waiting to send the "
643 "Action frame", freq);
644 return 0;
645 }
646
b22128ef
JM		 647 wpa_printf(MSG_DEBUG, "P2P: Schedule Action frame to be transmitted "
648 "once the driver gets to the requested channel");
649 if (wait_time > wpa_s->max_remain_on_chan)
650 wait_time = wpa_s->max_remain_on_chan;
651 if (wpa_drv_remain_on_channel(wpa_s, freq, wait_time) < 0) {
652 wpa_printf(MSG_DEBUG, "P2P: Failed to request driver "
653 "to remain on channel (%u MHz) for Action "
654 "Frame TX", freq);
655 return -1;
656 }
07a30a66 657 wpa_s->roc_waiting_drv_freq = freq;
b22128ef
JM		 658
659 return 0;
660}
661
662
663static void wpas_send_action_done(void *ctx)
664{
665 struct wpa_supplicant *wpa_s = ctx;
666 wpa_printf(MSG_DEBUG, "P2P: Action frame sequence done notification");
667 wpabuf_free(wpa_s->pending_action_tx);
668 wpa_s->pending_action_tx = NULL;
669 if (wpa_s->off_channel_freq) {
670 wpa_drv_cancel_remain_on_channel(wpa_s);
671 wpa_s->off_channel_freq = 0;
07a30a66 672 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 673 }
674}
675
676
677static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
678 struct p2p_go_neg_results *params)
679{
680 if (wpa_s->go_params == NULL) {
681 wpa_s->go_params = os_malloc(sizeof(*params));
682 if (wpa_s->go_params == NULL)
683 return -1;
684 }
685 os_memcpy(wpa_s->go_params, params, sizeof(*params));
686 return 0;
687}
688
689
690static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
691 struct p2p_go_neg_results *res)
692{
693 wpa_supplicant_ap_deinit(wpa_s);
694 wpas_copy_go_neg_results(wpa_s, res);
695 if (res->wps_method == WPS_PBC)
696 wpas_wps_start_pbc(wpa_s, NULL /* res->peer_interface_addr */,
697 1);
3c5126a4
JM		 698 else {
699 u16 dev_pw_id = DEV_PW_DEFAULT;
700 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
701 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
b22128ef 702 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
3c5126a4
JM		 703 wpa_s->p2p_pin, 1, dev_pw_id);
704 }
b22128ef
JM		 705}
706
707
708static void p2p_go_configured(void *ctx, void *data)
709{
710 struct wpa_supplicant *wpa_s = ctx;
711 struct p2p_go_neg_results *params = data;
712 struct wpa_ssid *ssid;
713
714 ssid = wpa_s->current_ssid;
715 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
716 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
717 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
718 "%s GO ssid=\"%s\" passphrase=\"%s\" go_dev_addr="
719 MACSTR "%s",
720 wpa_s->ifname,
721 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
722 params->passphrase ? params->passphrase : "",
723 MAC2STR(wpa_s->parent->own_addr),
724 params->persistent_group ? " [PERSISTENT]" : "");
725 if (params->persistent_group)
726 wpas_p2p_store_persistent_group(
727 wpa_s->parent, ssid,
728 wpa_s->parent->own_addr);
72044390 729 wpas_p2p_cross_connect_setup(wpa_s);
b22128ef
JM		 730 return;
731 }
732
733 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
734 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
735 params->peer_interface_addr)) {
736 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
737 "filtering");
738 return;
739 }
740 if (params->wps_method == WPS_PBC)
741 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr);
742 else if (wpa_s->p2p_pin[0])
743 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
744 wpa_s->p2p_pin, NULL, 0);
745 os_free(wpa_s->go_params);
746 wpa_s->go_params = NULL;
747}
748
749
750static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
751 struct p2p_go_neg_results *params,
752 int group_formation)
753{
754 struct wpa_ssid *ssid;
755
756 if (wpas_copy_go_neg_results(wpa_s, params) < 0)
757 return;
758
759 ssid = wpa_config_add_network(wpa_s->conf);
760 if (ssid == NULL)
761 return;
762
763 wpa_config_set_network_defaults(ssid);
764 ssid->temporary = 1;
765 ssid->p2p_group = 1;
766 ssid->p2p_persistent_group = params->persistent_group;
767 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
768 WPAS_MODE_P2P_GO;
769 ssid->frequency = params->freq;
770 ssid->ssid = os_zalloc(params->ssid_len + 1);
771 if (ssid->ssid) {
772 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
773 ssid->ssid_len = params->ssid_len;
774 }
775 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
776 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
777 ssid->proto = WPA_PROTO_RSN;
778 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
779 ssid->passphrase = os_strdup(params->passphrase);
780
781 wpa_s->ap_configured_cb = p2p_go_configured;
782 wpa_s->ap_configured_cb_ctx = wpa_s;
783 wpa_s->ap_configured_cb_data = wpa_s->go_params;
784 wpa_s->connect_without_scan = 1;
785 wpa_s->reassociate = 1;
786 wpa_s->disconnected = 0;
787 wpa_supplicant_req_scan(wpa_s, 0, 0);
788}
789
790
791static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
792 const struct wpa_supplicant *src)
793{
794 struct wpa_config *d;
795 const struct wpa_config *s;
796
797 d = dst->conf;
798 s = src->conf;
799
800#define C(n) if (s->n) d->n = os_strdup(s->n)
801 C(device_name);
802 C(manufacturer);
803 C(model_name);
804 C(model_number);
805 C(serial_number);
806 C(device_type);
807 C(config_methods);
808#undef C
809}
810
811
812static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
813 enum wpa_driver_if_type type)
814{
815 char ifname[120], force_ifname[120];
816
817 if (wpa_s->pending_interface_name[0]) {
818 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
819 "- skip creation of a new one");
820 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
821 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
822 "unknown?! ifname='%s'",
823 wpa_s->pending_interface_name);
824 return -1;
825 }
826 return 0;
827 }
828
829 os_snprintf(ifname, sizeof(ifname), "%s-p2p-%d", wpa_s->ifname,
830 wpa_s->p2p_group_idx);
831 force_ifname[0] = '\0';
832
833 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
834 ifname);
835 wpa_s->p2p_group_idx++;
836
837 wpa_s->pending_interface_type = type;
838 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
839 wpa_s->pending_interface_addr) < 0) {
840 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
841 "interface");
842 return -1;
843 }
844
845 if (force_ifname[0]) {
846 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
847 force_ifname);
848 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
849 sizeof(wpa_s->pending_interface_name));
850 } else
851 os_strlcpy(wpa_s->pending_interface_name, ifname,
852 sizeof(wpa_s->pending_interface_name));
853 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
854 MACSTR, wpa_s->pending_interface_name,
855 MAC2STR(wpa_s->pending_interface_addr));
856
857 return 0;
858}
859
860
861static void wpas_p2p_remove_pending_group_interface(
862 struct wpa_supplicant *wpa_s)
863{
864 if (!wpa_s->pending_interface_name[0] ||
865 is_zero_ether_addr(wpa_s->pending_interface_addr))
866 return; /* No pending virtual interface */
867
868 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
869 wpa_s->pending_interface_name);
870 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
871 wpa_s->pending_interface_name);
872 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
873 wpa_s->pending_interface_name[0] = '\0';
874}
875
876
877static struct wpa_supplicant *
878wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
879{
880 struct wpa_interface iface;
881 struct wpa_supplicant *group_wpa_s;
882
883 if (!wpa_s->pending_interface_name[0]) {
884 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
885 return NULL;
886 }
887
888 os_memset(&iface, 0, sizeof(iface));
889 iface.ifname = wpa_s->pending_interface_name;
890 iface.driver = wpa_s->driver->name;
891 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
892 iface.driver_param = wpa_s->conf->driver_param;
893 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
894 if (group_wpa_s == NULL) {
895 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
896 "wpa_supplicant interface");
897 return NULL;
898 }
899 wpa_s->pending_interface_name[0] = '\0';
900 group_wpa_s->parent = wpa_s;
901 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
902 P2P_GROUP_INTERFACE_CLIENT;
903 wpa_s->global->p2p_group_formation = group_wpa_s;
904
905 wpas_p2p_clone_config(group_wpa_s, wpa_s);
906
907 return group_wpa_s;
908}
909
910
911static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
912 void *timeout_ctx)
913{
914 struct wpa_supplicant *wpa_s = eloop_ctx;
915 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
916 if (wpa_s->global->p2p)
917 p2p_group_formation_failed(wpa_s->global->p2p);
918 wpas_group_formation_completed(wpa_s, 0);
919}
920
921
922void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
923{
924 struct wpa_supplicant *wpa_s = ctx;
925
926 if (wpa_s->off_channel_freq) {
927 wpa_drv_cancel_remain_on_channel(wpa_s);
928 wpa_s->off_channel_freq = 0;
07a30a66 929 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 930 }
931
932 if (res->status) {
933 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
934 res->status);
935 wpas_p2p_remove_pending_group_interface(wpa_s);
936 return;
937 }
938
939 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
940
941 if (wpa_s->create_p2p_iface) {
942 struct wpa_supplicant *group_wpa_s =
943 wpas_p2p_init_group_interface(wpa_s, res->role_go);
944 if (group_wpa_s == NULL) {
945 wpas_p2p_remove_pending_group_interface(wpa_s);
946 return;
947 }
3c5126a4 948 if (group_wpa_s != wpa_s) {
b22128ef
JM		 949 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
950 sizeof(group_wpa_s->p2p_pin));
3c5126a4
JM		 951 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
952 }
b22128ef
JM		 953 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
954 wpa_s->pending_interface_name[0] = '\0';
955 group_wpa_s->p2p_in_provisioning = 1;
956
957 if (res->role_go)
958 wpas_start_wps_go(group_wpa_s, res, 1);
959 else
960 wpas_start_wps_enrollee(group_wpa_s, res);
961 } else {
962 wpa_s->p2p_in_provisioning = 1;
963 wpa_s->global->p2p_group_formation = wpa_s;
964
965 if (res->role_go)
966 wpas_start_wps_go(wpa_s, res, 1);
967 else
968 wpas_start_wps_enrollee(ctx, res);
969 }
970
971 wpa_s->p2p_long_listen = 0;
972 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
973
974 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
975 /* TODO: add peer Config Timeout */
976 eloop_register_timeout(15, 0, wpas_p2p_group_formation_timeout, wpa_s,
977 NULL);
978}
979
980
981void wpas_go_neg_req_rx(void *ctx, const u8 *src)
982{
983 struct wpa_supplicant *wpa_s = ctx;
984 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR,
985 MAC2STR(src));
986}
987
988
989void wpas_dev_found(void *ctx, const u8 *addr, const u8 *dev_addr,
990 const u8 *pri_dev_type, const char *dev_name,
991 u16 config_methods, u8 dev_capab, u8 group_capab)
992{
993 struct wpa_supplicant *wpa_s = ctx;
994 char devtype[WPS_DEV_TYPE_BUFSIZE];
995 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
996 " p2p_dev_addr=" MACSTR
997 " pri_dev_type=%s name='%s' config_methods=0x%x "
998 "dev_capab=0x%x group_capab=0x%x",
999 MAC2STR(addr), MAC2STR(dev_addr),
1000 wps_dev_type_bin2str(pri_dev_type, devtype, sizeof(devtype)),
1001 dev_name, config_methods, dev_capab, group_capab);
1002}
1003
1004
1005static int wpas_start_listen(void *ctx, unsigned int freq,
1006 unsigned int duration,
1007 const struct wpabuf *probe_resp_ie)
1008{
1009 struct wpa_supplicant *wpa_s = ctx;
1010
1011 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie);
1012
1013 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1014 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1015 "report received Probe Request frames");
1016 return -1;
1017 }
1018
1019 wpa_s->pending_listen_freq = freq;
1020 wpa_s->pending_listen_duration = duration;
1021
1022 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1023 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1024 "to remain on channel (%u MHz) for Listen "
1025 "state", freq);
1026 wpa_s->pending_listen_freq = 0;
1027 return -1;
1028 }
07a30a66 1029 wpa_s->roc_waiting_drv_freq = freq;
b22128ef
JM		 1030
1031 return 0;
1032}
1033
1034
1035static void wpas_stop_listen(void *ctx)
1036{
1037 struct wpa_supplicant *wpa_s = ctx;
1038 if (wpa_s->off_channel_freq) {
1039 wpa_drv_cancel_remain_on_channel(wpa_s);
1040 wpa_s->off_channel_freq = 0;
07a30a66 1041 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 1042 }
1043 wpa_drv_probe_req_report(wpa_s, 0);
1044}
1045
1046
1047static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1048{
1049 struct wpa_supplicant *wpa_s = ctx;
1050 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf));
1051}
1052
1053
1054static struct p2p_srv_bonjour *
1055wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1056 const struct wpabuf *query)
1057{
1058 struct p2p_srv_bonjour *bsrv;
1059 size_t len;
1060
1061 len = wpabuf_len(query);
1062 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1063 struct p2p_srv_bonjour, list) {
1064 if (len == wpabuf_len(bsrv->query) &&
1065 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1066 len) == 0)
1067 return bsrv;
1068 }
1069 return NULL;
1070}
1071
1072
1073static struct p2p_srv_upnp *
1074wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1075 const char *service)
1076{
1077 struct p2p_srv_upnp *usrv;
1078
1079 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1080 struct p2p_srv_upnp, list) {
1081 if (version == usrv->version &&
1082 os_strcmp(service, usrv->service) == 0)
1083 return usrv;
1084 }
1085 return NULL;
1086}
1087
1088
1089static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1090 u8 srv_trans_id)
1091{
1092 u8 *len_pos;
1093
1094 if (wpabuf_tailroom(resp) < 5)
1095 return;
1096
1097 /* Length (to be filled) */
1098 len_pos = wpabuf_put(resp, 2);
1099 wpabuf_put_u8(resp, srv_proto);
1100 wpabuf_put_u8(resp, srv_trans_id);
1101 /* Status Code */
1102 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1103 /* Response Data: empty */
1104 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1105}
1106
1107
1108static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1109 struct wpabuf *resp, u8 srv_trans_id)
1110{
1111 struct p2p_srv_bonjour *bsrv;
1112 u8 *len_pos;
1113
1114 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1115
1116 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1117 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1118 return;
1119 }
1120
1121 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1122 struct p2p_srv_bonjour, list) {
1123 if (wpabuf_tailroom(resp) <
1124 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1125 return;
1126 /* Length (to be filled) */
1127 len_pos = wpabuf_put(resp, 2);
1128 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1129 wpabuf_put_u8(resp, srv_trans_id);
1130 /* Status Code */
1131 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1132 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1133 wpabuf_head(bsrv->resp),
1134 wpabuf_len(bsrv->resp));
1135 /* Response Data */
1136 wpabuf_put_buf(resp, bsrv->query); /* Key */
1137 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1138 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1139 2);
1140 }
1141}
1142
1143
1144static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1145 struct wpabuf *resp, u8 srv_trans_id,
1146 const u8 *query, size_t query_len)
1147{
1148 struct p2p_srv_bonjour *bsrv;
1149 struct wpabuf buf;
1150 u8 *len_pos;
1151
1152 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1153 query, query_len);
1154 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1155 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1156 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1157 srv_trans_id);
1158 return;
1159 }
1160
1161 if (query_len == 0) {
1162 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1163 return;
1164 }
1165
1166 if (wpabuf_tailroom(resp) < 5)
1167 return;
1168 /* Length (to be filled) */
1169 len_pos = wpabuf_put(resp, 2);
1170 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1171 wpabuf_put_u8(resp, srv_trans_id);
1172
1173 wpabuf_set(&buf, query, query_len);
1174 bsrv = wpas_p2p_service_get_bonjour(wpa_s, &buf);
1175 if (bsrv == NULL) {
1176 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1177 "available");
1178
1179 /* Status Code */
bf608cad 1180 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1181 /* Response Data: empty */
1182 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1183 2);
1184 return;
1185 }
1186
1187 /* Status Code */
1188 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1189 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1190 wpabuf_head(bsrv->resp), wpabuf_len(bsrv->resp));
1191
1192 if (wpabuf_tailroom(resp) >=
1193 wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp)) {
1194 /* Response Data */
1195 wpabuf_put_buf(resp, bsrv->query); /* Key */
1196 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1197 }
1198 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1199}
1200
1201
1202static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1203 struct wpabuf *resp, u8 srv_trans_id)
1204{
1205 struct p2p_srv_upnp *usrv;
1206 u8 *len_pos;
1207
1208 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1209
1210 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1211 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1212 return;
1213 }
1214
1215 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1216 struct p2p_srv_upnp, list) {
1217 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1218 return;
1219
1220 /* Length (to be filled) */
1221 len_pos = wpabuf_put(resp, 2);
1222 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1223 wpabuf_put_u8(resp, srv_trans_id);
1224
1225 /* Status Code */
1226 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1227 /* Response Data */
1228 wpabuf_put_u8(resp, usrv->version);
1229 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1230 usrv->service);
1231 wpabuf_put_str(resp, usrv->service);
1232 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1233 2);
1234 }
1235}
1236
1237
1238static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1239 struct wpabuf *resp, u8 srv_trans_id,
1240 const u8 *query, size_t query_len)
1241{
1242 struct p2p_srv_upnp *usrv;
1243 u8 *len_pos;
1244 u8 version;
1245 char *str;
1246 int count = 0;
1247
1248 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1249 query, query_len);
1250
1251 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1252 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1253 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1254 srv_trans_id);
1255 return;
1256 }
1257
1258 if (query_len == 0) {
1259 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1260 return;
1261 }
1262
1263 version = query[0];
1264 str = os_malloc(query_len);
1265 if (str == NULL)
1266 return;
1267 os_memcpy(str, query + 1, query_len - 1);
1268 str[query_len - 1] = '\0';
1269
1270 if (wpabuf_tailroom(resp) < 5)
1271 return;
1272
1273 /* Length (to be filled) */
1274 len_pos = wpabuf_put(resp, 2);
1275 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1276 wpabuf_put_u8(resp, srv_trans_id);
1277
1278 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1279 struct p2p_srv_upnp, list) {
1280 if (version != usrv->version)
1281 continue;
1282
1283 if (os_strcmp(str, "ssdp:all") != 0 &&
1284 os_strstr(usrv->service, str) == NULL)
1285 continue;
1286
1287 if (wpabuf_tailroom(resp) < 2)
1288 break;
1289 if (count == 0) {
1290 /* Status Code */
1291 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1292 /* Response Data */
1293 wpabuf_put_u8(resp, version);
1294 } else
1295 wpabuf_put_u8(resp, ',');
1296
1297 count++;
1298
1299 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1300 usrv->service);
1301 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1302 break;
1303 wpabuf_put_str(resp, usrv->service);
1304 }
1305
1306 if (count == 0) {
1307 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1308 "available");
1309 /* Status Code */
bf608cad 1310 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1311 /* Response Data: empty */
1312 }
1313
1314 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1315}
1316
1317
1318void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1319 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1320{
1321 struct wpa_supplicant *wpa_s = ctx;
1322 const u8 *pos = tlvs;
1323 const u8 *end = tlvs + tlvs_len;
1324 const u8 *tlv_end;
1325 u16 slen;
1326 struct wpabuf *resp;
1327 u8 srv_proto, srv_trans_id;
1328 size_t buf_len;
1329 char *buf;
1330
1331 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1332 tlvs, tlvs_len);
1333 buf_len = 2 * tlvs_len + 1;
1334 buf = os_malloc(buf_len);
1335 if (buf) {
1336 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1337 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1338 MACSTR " %u %u %s",
1339 freq, MAC2STR(sa), dialog_token, update_indic,
1340 buf);
1341 os_free(buf);
1342 }
1343
1344 if (wpa_s->p2p_sd_over_ctrl_iface)
1345 return; /* to be processed by an external program */
1346
1347 resp = wpabuf_alloc(10000);
1348 if (resp == NULL)
1349 return;
1350
1351 while (pos + 1 < end) {
1352 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1353 slen = WPA_GET_LE16(pos);
1354 pos += 2;
1355 if (pos + slen > end || slen < 2) {
1356 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1357 "length");
1358 wpabuf_free(resp);
1359 return;
1360 }
1361 tlv_end = pos + slen;
1362
1363 srv_proto = *pos++;
1364 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1365 srv_proto);
1366 srv_trans_id = *pos++;
1367 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1368 srv_trans_id);
1369
1370 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1371 pos, tlv_end - pos);
1372
6e6963ea
JM		 1373
1374 if (wpa_s->force_long_sd) {
1375 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1376 "response");
1377 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1378 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1379 goto done;
1380 }
1381
b22128ef
JM		 1382 switch (srv_proto) {
1383 case P2P_SERV_ALL_SERVICES:
1384 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1385 "for all services");
1386 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1387 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1388 wpa_printf(MSG_DEBUG, "P2P: No service "
1389 "discovery protocols available");
1390 wpas_sd_add_proto_not_avail(
1391 resp, P2P_SERV_ALL_SERVICES,
1392 srv_trans_id);
1393 break;
1394 }
1395 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1396 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1397 break;
1398 case P2P_SERV_BONJOUR:
1399 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1400 pos, tlv_end - pos);
1401 break;
1402 case P2P_SERV_UPNP:
1403 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1404 pos, tlv_end - pos);
1405 break;
1406 default:
1407 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1408 "protocol %u", srv_proto);
1409 wpas_sd_add_proto_not_avail(resp, srv_proto,
1410 srv_trans_id);
1411 break;
1412 }
1413
1414 pos = tlv_end;
1415 }
1416
6e6963ea 1417done:
b22128ef
JM		 1418 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1419
1420 wpabuf_free(resp);
1421}
1422
1423
1424void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1425 const u8 *tlvs, size_t tlvs_len)
1426{
1427 struct wpa_supplicant *wpa_s = ctx;
1428 const u8 *pos = tlvs;
1429 const u8 *end = tlvs + tlvs_len;
1430 const u8 *tlv_end;
1431 u16 slen;
1432 size_t buf_len;
1433 char *buf;
1434
1435 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1436 tlvs, tlvs_len);
18708aad
JM		 1437 if (tlvs_len > 1500) {
1438 /* TODO: better way for handling this */
1439 wpa_msg_ctrl(wpa_s, MSG_INFO,
1440 P2P_EVENT_SERV_DISC_RESP MACSTR
1441 " %u <long response: %u bytes>",
1442 MAC2STR(sa), update_indic,
1443 (unsigned int) tlvs_len);
1444 } else {
1445 buf_len = 2 * tlvs_len + 1;
1446 buf = os_malloc(buf_len);
1447 if (buf) {
1448 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1449 wpa_msg_ctrl(wpa_s, MSG_INFO,
1450 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1451 MAC2STR(sa), update_indic, buf);
1452 os_free(buf);
1453 }
b22128ef
JM		 1454 }
1455
1456 while (pos < end) {
1457 u8 srv_proto, srv_trans_id, status;
1458
1459 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1460 slen = WPA_GET_LE16(pos);
1461 pos += 2;
1462 if (pos + slen > end || slen < 3) {
1463 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1464 "length");
1465 return;
1466 }
1467 tlv_end = pos + slen;
1468
1469 srv_proto = *pos++;
1470 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1471 srv_proto);
1472 srv_trans_id = *pos++;
1473 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1474 srv_trans_id);
1475 status = *pos++;
1476 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1477 status);
1478
1479 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1480 pos, tlv_end - pos);
1481
1482 pos = tlv_end;
1483 }
1484}
1485
1486
1487void * wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1488 const struct wpabuf *tlvs)
1489{
1490 return p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
1491}
1492
1493
1494void * wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1495 u8 version, const char *query)
1496{
1497 struct wpabuf *tlvs;
1498 void *ret;
1499
1500 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1501 if (tlvs == NULL)
1502 return NULL;
1503 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1504 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1505 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1506 wpabuf_put_u8(tlvs, version);
1507 wpabuf_put_str(tlvs, query);
1508 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1509 wpabuf_free(tlvs);
1510 return ret;
1511}
1512
1513
1514int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, void *req)
1515{
1516 return p2p_sd_cancel_request(wpa_s->global->p2p, req);
1517}
1518
1519
1520void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
1521 const u8 *dst, u8 dialog_token,
1522 const struct wpabuf *resp_tlvs)
1523{
1524 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
1525 resp_tlvs);
1526}
1527
1528
1529void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
1530{
1531 p2p_sd_service_update(wpa_s->global->p2p);
1532}
1533
1534
1535static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
1536{
1537 dl_list_del(&bsrv->list);
1538 wpabuf_free(bsrv->query);
1539 wpabuf_free(bsrv->resp);
1540 os_free(bsrv);
1541}
1542
1543
1544static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
1545{
1546 dl_list_del(&usrv->list);
1547 os_free(usrv->service);
1548 os_free(usrv);
1549}
1550
1551
1552void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
1553{
1554 struct p2p_srv_bonjour *bsrv, *bn;
1555 struct p2p_srv_upnp *usrv, *un;
1556
1557 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
1558 struct p2p_srv_bonjour, list)
1559 wpas_p2p_srv_bonjour_free(bsrv);
1560
1561 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
1562 struct p2p_srv_upnp, list)
1563 wpas_p2p_srv_upnp_free(usrv);
1564
1565 wpas_p2p_sd_service_update(wpa_s);
1566}
1567
1568
1569int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
1570 struct wpabuf *query, struct wpabuf *resp)
1571{
1572 struct p2p_srv_bonjour *bsrv;
1573
1574 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1575 if (bsrv) {
1576 wpabuf_free(query);
1577 wpabuf_free(bsrv->resp);
1578 bsrv->resp = resp;
1579 return 0;
1580 }
1581
1582 bsrv = os_zalloc(sizeof(*bsrv));
1583 if (bsrv == NULL)
1584 return -1;
1585 bsrv->query = query;
1586 bsrv->resp = resp;
1587 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
1588
1589 wpas_p2p_sd_service_update(wpa_s);
1590 return 0;
1591}
1592
1593
1594int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
1595 const struct wpabuf *query)
1596{
1597 struct p2p_srv_bonjour *bsrv;
1598
1599 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
1600 if (bsrv == NULL)
1601 return -1;
1602 wpas_p2p_srv_bonjour_free(bsrv);
1603 wpas_p2p_sd_service_update(wpa_s);
1604 return 0;
1605}
1606
1607
1608int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
1609 const char *service)
1610{
1611 struct p2p_srv_upnp *usrv;
1612
1613 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
1614 return 0; /* Already listed */
1615 usrv = os_zalloc(sizeof(*usrv));
1616 if (usrv == NULL)
1617 return -1;
1618 usrv->version = version;
1619 usrv->service = os_strdup(service);
1620 if (usrv->service == NULL) {
1621 os_free(usrv);
1622 return -1;
1623 }
1624 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
1625
1626 wpas_p2p_sd_service_update(wpa_s);
1627 return 0;
1628}
1629
1630
1631int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
1632 const char *service)
1633{
1634 struct p2p_srv_upnp *usrv;
1635
1636 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
1637 if (usrv == NULL)
1638 return -1;
1639 wpas_p2p_srv_upnp_free(usrv);
1640 wpas_p2p_sd_service_update(wpa_s);
1641 return 0;
1642}
1643
1644
1645static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
1646 const u8 *peer, const char *params)
1647{
1648 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
1649 MAC2STR(peer), wps_generate_pin(), params);
1650}
1651
1652
1653static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
1654 const u8 *peer, const char *params)
1655{
1656 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
1657 MAC2STR(peer), params);
1658}
1659
1660
1661void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
1662 const u8 *dev_addr, const u8 *pri_dev_type,
1663 const char *dev_name, u16 supp_config_methods,
1664 u8 dev_capab, u8 group_capab)
1665{
1666 struct wpa_supplicant *wpa_s = ctx;
1667 char devtype[WPS_DEV_TYPE_BUFSIZE];
1668 char params[200];
1669 u8 empty_dev_type[8];
1670
1671 if (pri_dev_type == NULL) {
1672 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
1673 pri_dev_type = empty_dev_type;
1674 }
1675 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
1676 " pri_dev_type=%s name='%s' config_methods=0x%x "
1677 "dev_capab=0x%x group_capab=0x%x",
1678 MAC2STR(dev_addr),
1679 wps_dev_type_bin2str(pri_dev_type, devtype,
1680 sizeof(devtype)),
1681 dev_name, supp_config_methods, dev_capab, group_capab);
1682 params[sizeof(params) - 1] = '\0';
1683
1684 if (config_methods & WPS_CONFIG_DISPLAY)
1685 wpas_prov_disc_local_display(wpa_s, peer, params);
1686 else if (config_methods & WPS_CONFIG_KEYPAD)
1687 wpas_prov_disc_local_keypad(wpa_s, peer, params);
1688 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1689 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
1690 "%s", MAC2STR(peer), params);
1691}
1692
1693
1694void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
1695{
1696 struct wpa_supplicant *wpa_s = ctx;
1697 if (config_methods & WPS_CONFIG_DISPLAY)
1698 wpas_prov_disc_local_keypad(wpa_s, peer, "");
1699 else if (config_methods & WPS_CONFIG_KEYPAD)
1700 wpas_prov_disc_local_display(wpa_s, peer, "");
1701 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
1702 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR,
1703 MAC2STR(peer));
1704}
1705
1706
1707static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
1708 const u8 *go_dev_addr, const u8 *ssid,
1709 size_t ssid_len, int *go, u8 *group_bssid,
1710 int *force_freq, int persistent_group)
1711{
1712 struct wpa_supplicant *wpa_s = ctx;
1713 struct wpa_ssid *s;
1714 u8 cur_bssid[ETH_ALEN];
1715 int res;
1716
1717 if (!persistent_group) {
1718 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1719 " to join an active group", MAC2STR(sa));
108def93 1720 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
131cb37c
JM		 1721 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
1722 == 0 ||
1723 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
108def93
JM		 1724 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
1725 "authorized invitation");
1726 goto accept_inv;
1727 }
b22128ef
JM		 1728 /*
1729 * Do not accept the invitation automatically; notify user and
1730 * request approval.
1731 */
1732 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1733 }
1734
1735 if (!wpa_s->conf->persistent_reconnect)
1736 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
1737
1738 for (s = wpa_s->conf->ssid; s; s = s->next) {
1739 if (s->disabled == 2 &&
1740 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
1741 s->ssid_len == ssid_len &&
1742 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1743 break;
1744 }
1745
1746 if (!s) {
1747 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
1748 " requested reinvocation of an unknown group",
1749 MAC2STR(sa));
1750 return P2P_SC_FAIL_UNKNOWN_GROUP;
1751 }
1752
1753 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
1754 *go = 1;
1755 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1756 wpa_printf(MSG_DEBUG, "P2P: The only available "
1757 "interface is already in use - reject "
1758 "invitation");
1759 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1760 }
1761 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
1762 } else if (s->mode == WPAS_MODE_P2P_GO) {
1763 *go = 1;
1764 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
1765 {
1766 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
1767 "interface address for the group");
1768 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
1769 }
1770 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
1771 ETH_ALEN);
1772 }
1773
108def93 1774accept_inv:
b22128ef
JM		 1775 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
1776 wpa_s->assoc_freq) {
1777 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1778 "the channel we are already using");
1779 *force_freq = wpa_s->assoc_freq;
1780 }
1781
1782 res = wpa_drv_shared_freq(wpa_s);
1783 if (res > 0) {
1784 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
1785 "with the channel we are already using on a "
1786 "shared interface");
1787 *force_freq = res;
1788 }
1789
1790 return P2P_SC_SUCCESS;
1791}
1792
1793
1794static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
1795 const u8 *ssid, size_t ssid_len,
1796 const u8 *go_dev_addr, u8 status,
1797 int op_freq)
1798{
1799 struct wpa_supplicant *wpa_s = ctx;
1800 struct wpa_ssid *s;
1801
1802 for (s = wpa_s->conf->ssid; s; s = s->next) {
1803 if (s->disabled == 2 &&
1804 s->ssid_len == ssid_len &&
1805 os_memcmp(ssid, s->ssid, ssid_len) == 0)
1806 break;
1807 }
1808
1809 if (status == P2P_SC_SUCCESS) {
1810 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1811 " was accepted; op_freq=%d MHz",
1812 MAC2STR(sa), op_freq);
1813 if (s) {
1814 wpas_p2p_group_add_persistent(
1815 wpa_s, s, s->mode == WPAS_MODE_P2P_GO, 0);
108def93
JM		 1816 } else {
1817 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
1818 wpa_s->p2p_wps_method);
b22128ef
JM		 1819 }
1820 return;
1821 }
1822
1823 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
1824 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
1825 " was rejected (status %u)", MAC2STR(sa), status);
1826 return;
1827 }
1828
1829 if (!s) {
1830 if (bssid) {
1831 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1832 "sa=" MACSTR " go_dev_addr=" MACSTR
1833 " bssid=" MACSTR " unknown-network",
1834 MAC2STR(sa), MAC2STR(go_dev_addr),
1835 MAC2STR(bssid));
1836 } else {
1837 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
1838 "sa=" MACSTR " go_dev_addr=" MACSTR
1839 " unknown-network",
1840 MAC2STR(sa), MAC2STR(go_dev_addr));
1841 }
1842 return;
1843 }
1844
1845 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
1846 " persistent=%d", MAC2STR(sa), s->id);
1847}
1848
1849
1850static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
1851{
1852 struct wpa_supplicant *wpa_s = ctx;
1853 struct wpa_ssid *ssid;
1854
1855 if (bssid) {
1856 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1857 "status=%d " MACSTR,
1858 status, MAC2STR(bssid));
1859 } else {
1860 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
1861 "status=%d ", status);
1862 }
1863
706887fc
JM		 1864 if (wpa_s->pending_invite_ssid_id == -1)
1865 return; /* Invitation to active group */
1866
b22128ef
JM		 1867 if (status != P2P_SC_SUCCESS) {
1868 wpas_p2p_remove_pending_group_interface(wpa_s);
1869 return;
1870 }
1871
1872 ssid = wpa_config_get_network(wpa_s->conf,
1873 wpa_s->pending_invite_ssid_id);
1874 if (ssid == NULL) {
1875 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
1876 "data matching with invitation");
1877 return;
1878 }
1879
1880 wpas_p2p_group_add_persistent(wpa_s, ssid,
1881 ssid->mode == WPAS_MODE_P2P_GO, 0);
1882}
1883
1884
1885static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
1886 struct p2p_config *p2p)
1887{
1888 struct hostapd_hw_modes *modes;
1889 u16 num_modes, flags;
1890 int i, cla;
1891 int band24 = 0, band5_low = 0, band5_high = 0;
1892
1893 /* TODO: more detailed selection of channels within reg_class based on
1894 * driver capabilities */
1895
1896 modes = wpa_drv_get_hw_feature_data(wpa_s, &num_modes, &flags);
1897 if (modes == NULL) {
1898 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
1899 "of all supported channels; assume dualband "
1900 "support");
1901 band24 = band5_low = band5_high = 1;
1902 } else {
1903 for (i = 0; i < num_modes; i++) {
1904 struct hostapd_hw_modes *mode;
1905 mode = &modes[i];
1906 if (mode->mode == HOSTAPD_MODE_IEEE80211G) {
1907 band24 = 1;
1908 } else if (mode->mode == HOSTAPD_MODE_IEEE80211A) {
1909 int j;
1910 for (j = 0; j < mode->num_channels; j++) {
1911 struct hostapd_channel_data *ch;
1912 ch = &mode->channels[j];
1913 if (ch->chan == 36)
1914 band5_low = 1;
1915 else if (ch->chan == 157)
1916 band5_high = 1;
1917 }
1918 }
1919 }
1920 }
1921
1922 cla = 0;
1923
1924 if (band24) {
1925 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for "
1926 "2.4 GHz band");
1927
1928 /* Operating class 81 - 2.4 GHz band channels 1..13 */
1929 p2p->channels.reg_class[cla].reg_class = 81;
1930 p2p->channels.reg_class[cla].channels = 13;
1931 for (i = 0; i < 13; i++)
1932 p2p->channels.reg_class[cla].channel[i] = i + 1;
1933 cla++;
1934
1935 /* Operating class 82 - 2.4 GHz band channel 14 */
1936 p2p->channels.reg_class[cla].reg_class = 82;
1937 p2p->channels.reg_class[cla].channels = 1;
1938 p2p->channels.reg_class[cla].channel[0] = 14;
1939 cla++;
1940
1941#if 0
1942 /* Operating class 83 - 2.4 GHz band channels 1..9; 40 MHz */
1943 p2p->channels.reg_class[cla].reg_class = 83;
1944 p2p->channels.reg_class[cla].channels = 9;
1945 for (i = 0; i < 9; i++)
1946 p2p->channels.reg_class[cla].channel[i] = i + 1;
1947 cla++;
1948
1949 /* Operating class 84 - 2.4 GHz band channels 5..13; 40 MHz */
1950 p2p->channels.reg_class[cla].reg_class = 84;
1951 p2p->channels.reg_class[cla].channels = 9;
1952 for (i = 0; i < 9; i++)
1953 p2p->channels.reg_class[cla].channel[i] = i + 5;
1954 cla++;
1955#endif
1956 }
1957
1958 if (band5_low) {
1959 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for "
1960 "lower 5 GHz band");
1961
1962 /* Operating class 115 - 5 GHz, channels 36-48 */
1963 p2p->channels.reg_class[cla].reg_class = 115;
1964 p2p->channels.reg_class[cla].channels = 4;
1965 p2p->channels.reg_class[cla].channel[0] = 36;
1966 p2p->channels.reg_class[cla].channel[1] = 40;
1967 p2p->channels.reg_class[cla].channel[2] = 44;
1968 p2p->channels.reg_class[cla].channel[3] = 48;
1969 cla++;
1970
1971#if 0
1972 /* Operating class 116 - 5 GHz, channels 36,44; 40 MHz */
1973 p2p->channels.reg_class[cla].reg_class = 116;
1974 p2p->channels.reg_class[cla].channels = 2;
1975 p2p->channels.reg_class[cla].channel[0] = 36;
1976 p2p->channels.reg_class[cla].channel[1] = 44;
1977 cla++;
1978
1979 /* Operating class 117 - 5 GHz, channels 40,48; 40 MHz */
1980 p2p->channels.reg_class[cla].reg_class = 117;
1981 p2p->channels.reg_class[cla].channels = 2;
1982 p2p->channels.reg_class[cla].channel[0] = 40;
1983 p2p->channels.reg_class[cla].channel[1] = 48;
1984 cla++;
1985#endif
1986 }
1987
1988 if (band5_high) {
1989 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for "
1990 "higher 5 GHz band");
1991
1992 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
1993 p2p->channels.reg_class[cla].reg_class = 124;
1994 p2p->channels.reg_class[cla].channels = 4;
1995 p2p->channels.reg_class[cla].channel[0] = 149;
1996 p2p->channels.reg_class[cla].channel[1] = 153;
1997 p2p->channels.reg_class[cla].channel[2] = 157;
1998 p2p->channels.reg_class[cla].channel[3] = 161;
1999 cla++;
2000
2001#if 0
2002 /* Operating class 126 - 5 GHz, channels 149,157; 40 MHz */
2003 p2p->channels.reg_class[cla].reg_class = 126;
2004 p2p->channels.reg_class[cla].channels = 2;
2005 p2p->channels.reg_class[cla].channel[0] = 149;
2006 p2p->channels.reg_class[cla].channel[1] = 157;
2007 cla++;
2008
2009 /* Operating class 127 - 5 GHz, channels 153,161; 40 MHz */
2010 p2p->channels.reg_class[cla].reg_class = 127;
2011 p2p->channels.reg_class[cla].channels = 2;
2012 p2p->channels.reg_class[cla].channel[0] = 153;
2013 p2p->channels.reg_class[cla].channel[1] = 161;
2014 cla++;
2015#endif
2016 }
2017
2018 p2p->channels.reg_classes = cla;
2019
2020 if (modes)
2021 ieee80211_sta_free_hw_features(modes, num_modes);
2022
2023 return 0;
2024}
2025
2026
2027static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2028 size_t buf_len)
2029{
2030 struct wpa_supplicant *wpa_s = ctx;
2031
2032 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2033 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2034 break;
2035 }
2036 if (wpa_s == NULL)
2037 return -1;
2038
2039 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2040}
2041
2042
2043/**
2044 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2045 * @global: Pointer to global data from wpa_supplicant_init()
2046 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2047 * Returns: 0 on success, -1 on failure
2048 */
2049int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2050{
2051 struct p2p_config p2p;
2052 unsigned int r;
2053 int i;
2054
2055 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2056 return 0;
2057
2058#ifdef CONFIG_CLIENT_MLME
2059 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)) {
2060 wpa_s->mlme.public_action_cb = p2p_rx_action_mlme;
2061 wpa_s->mlme.public_action_cb_ctx = wpa_s;
2062 }
2063#endif /* CONFIG_CLIENT_MLME */
2064
2065 if (wpa_drv_disable_11b_rates(wpa_s, 1) < 0) {
2066 wpa_printf(MSG_DEBUG, "P2P: Failed to disable 11b rates");
2067 /* Continue anyway; this is not really a fatal error */
2068 }
2069
2070 if (global->p2p)
2071 return 0;
2072
2073 os_memset(&p2p, 0, sizeof(p2p));
2074 p2p.msg_ctx = wpa_s;
2075 p2p.cb_ctx = wpa_s;
2076 p2p.p2p_scan = wpas_p2p_scan;
2077 p2p.send_action = wpas_send_action;
2078 p2p.send_action_done = wpas_send_action_done;
2079 p2p.go_neg_completed = wpas_go_neg_completed;
2080 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2081 p2p.dev_found = wpas_dev_found;
2082 p2p.start_listen = wpas_start_listen;
2083 p2p.stop_listen = wpas_stop_listen;
2084 p2p.send_probe_resp = wpas_send_probe_resp;
2085 p2p.sd_request = wpas_sd_request;
2086 p2p.sd_response = wpas_sd_response;
2087 p2p.prov_disc_req = wpas_prov_disc_req;
2088 p2p.prov_disc_resp = wpas_prov_disc_resp;
2089 p2p.invitation_process = wpas_invitation_process;
2090 p2p.invitation_received = wpas_invitation_received;
2091 p2p.invitation_result = wpas_invitation_result;
2092 p2p.get_noa = wpas_get_noa;
2093
2094 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
2095 os_memcpy(p2p.dev_addr, wpa_s->own_addr, ETH_ALEN);
2096 p2p.dev_name = wpa_s->conf->device_name;
2097
2098 if (wpa_s->conf->p2p_listen_reg_class &&
2099 wpa_s->conf->p2p_listen_channel) {
2100 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2101 p2p.channel = wpa_s->conf->p2p_listen_channel;
2102 } else {
2103 p2p.reg_class = 81;
2104 /*
2105 * Pick one of the social channels randomly as the listen
2106 * channel.
2107 */
2108 os_get_random((u8 *) &r, sizeof(r));
2109 p2p.channel = 1 + (r % 3) * 5;
2110 }
2111
2112 if (wpa_s->conf->p2p_oper_reg_class &&
2113 wpa_s->conf->p2p_oper_channel) {
2114 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2115 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
2116 } else {
2117 p2p.op_reg_class = 81;
2118 /*
2119 * For initial tests, pick the operation channel randomly.
2120 * TODO: Use scan results (etc.) to select the best channel.
2121 */
2122 p2p.op_channel = 1 + r % 11;
2123 }
2124 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d "
2125 "Own preferred operation channel: %d",
2126 p2p.channel, p2p.op_channel);
2127 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2128 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2129 p2p.country[2] = 0x04;
2130 } else
2131 os_memcpy(p2p.country, "US\x04", 3);
2132
2133 if (wpas_p2p_setup_channels(wpa_s, &p2p)) {
2134 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2135 "channel list");
2136 return -1;
2137 }
2138
2139 if (wpa_s->conf->device_type &&
2140 wps_dev_type_str2bin(wpa_s->conf->device_type, p2p.pri_dev_type) <
2141 0) {
2142 wpa_printf(MSG_ERROR, "P2P: Invalid device_type");
2143 return -1;
2144 }
2145
2146 for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
2147 if (wpa_s->conf->sec_device_type[i] == NULL)
2148 continue;
2149 if (wps_dev_type_str2bin(
2150 wpa_s->conf->sec_device_type[i],
2151 p2p.sec_dev_type[p2p.num_sec_dev_types]) < 0) {
2152 wpa_printf(MSG_ERROR, "P2P: Invalid sec_device_type");
2153 return -1;
2154 }
2155 p2p.num_sec_dev_types++;
2156 if (p2p.num_sec_dev_types == P2P_SEC_DEVICE_TYPES)
2157 break;
2158 }
2159
2160 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2161 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2162
2163 p2p.max_peers = 100;
2164
2165 if (wpa_s->conf->p2p_ssid_postfix) {
2166 p2p.ssid_postfix_len =
2167 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2168 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2169 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2170 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2171 p2p.ssid_postfix_len);
2172 }
2173
2174 global->p2p = p2p_init(&p2p);
2175 if (global->p2p == NULL)
2176 return -1;
2177
2178 return 0;
2179}
2180
2181
2182/**
2183 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2184 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2185 *
2186 * This function deinitialize per-interface P2P data.
2187 */
2188void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2189{
2190 if (wpa_s->driver && wpa_s->drv_priv)
2191 wpa_drv_probe_req_report(wpa_s, 0);
2192 os_free(wpa_s->go_params);
2193 wpa_s->go_params = NULL;
2194 wpabuf_free(wpa_s->pending_action_tx);
2195 wpa_s->pending_action_tx = NULL;
2196 eloop_cancel_timeout(wpas_send_action_cb, wpa_s, NULL);
2197 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 2198 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 2199 wpa_s->p2p_long_listen = 0;
2200 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2201 wpas_p2p_remove_pending_group_interface(wpa_s);
2202
2203 /* TODO: remove group interface from the driver if this wpa_s instance
2204 * is on top of a P2P group interface */
2205}
2206
2207
2208/**
2209 * wpas_p2p_deinit_global - Deinitialize global P2P module
2210 * @global: Pointer to global data from wpa_supplicant_init()
2211 *
2212 * This function deinitializes the global (per device) P2P module.
2213 */
2214void wpas_p2p_deinit_global(struct wpa_global *global)
2215{
2216 struct wpa_supplicant *wpa_s, *tmp;
2217 char *ifname;
2218
2219 if (global->p2p == NULL)
2220 return;
2221
2222 /* Remove remaining P2P group interfaces */
2223 wpa_s = global->ifaces;
2a43101e
JM		 2224 if (wpa_s)
2225 wpas_p2p_service_flush(wpa_s);
b22128ef
JM		 2226 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2227 wpa_s = wpa_s->next;
2228 while (wpa_s) {
2229 enum wpa_driver_if_type type;
2230 tmp = global->ifaces;
2231 while (tmp &&
2232 (tmp == wpa_s ||
2233 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
2234 tmp = tmp->next;
2235 }
2236 if (tmp == NULL)
2237 break;
2238 ifname = os_strdup(tmp->ifname);
2239 type = wpas_p2p_if_type(tmp->p2p_group_interface);
2240 wpa_supplicant_remove_iface(global, tmp);
2241 if (ifname)
2242 wpa_drv_if_remove(wpa_s, type, ifname);
2243 os_free(ifname);
2244 }
2245
2246 p2p_deinit(global->p2p);
2247 global->p2p = NULL;
2248}
2249
2250
2251static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
2252{
2253 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
2254 return 1; /* P2P group requires a new interface in every case
2255 */
2256 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
2257 return 0; /* driver does not support concurrent operations */
2258 if (wpa_s->global->ifaces->next)
2259 return 1; /* more that one interface already in use */
2260 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2261 return 1; /* this interface is already in use */
2262 return 0;
2263}
2264
2265
2266static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
2267 const u8 *peer_addr,
2268 enum p2p_wps_method wps_method,
2269 int go_intent, const u8 *own_interface_addr,
2270 unsigned int force_freq, int persistent_group)
2271{
2272 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
2273 go_intent, own_interface_addr, force_freq,
2274 persistent_group);
2275}
2276
2277
2278static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
2279 const u8 *peer_addr,
2280 enum p2p_wps_method wps_method,
2281 int go_intent, const u8 *own_interface_addr,
2282 unsigned int force_freq, int persistent_group)
2283{
2284 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
2285 go_intent, own_interface_addr, force_freq,
2286 persistent_group);
2287}
2288
2289
ef922c4a
JM		 2290static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
2291 struct wpa_scan_results *scan_res)
b22128ef
JM		 2292{
2293 struct wpa_bss *bss;
2294
ef922c4a 2295 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 2296
ef922c4a
JM		 2297 if (wpa_s->global->p2p_disabled)
2298 return;
b22128ef 2299
ef922c4a
JM		 2300 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for join",
2301 scan_res ? (int) scan_res->num : -1);
2302
2303 if (scan_res)
2304 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 2305
ef922c4a 2306 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
b22128ef
JM		 2307 if (bss) {
2308 u16 method;
2309
2310 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
2311 "prior to joining an existing group (GO " MACSTR
2312 " freq=%u MHz)",
ef922c4a 2313 MAC2STR(wpa_s->pending_join_dev_addr), bss->freq);
b22128ef
JM		 2314 wpa_s->pending_pd_before_join = 1;
2315
ef922c4a 2316 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 2317 case WPS_PIN_LABEL:
2318 case WPS_PIN_DISPLAY:
2319 method = WPS_CONFIG_KEYPAD;
2320 break;
2321 case WPS_PIN_KEYPAD:
2322 method = WPS_CONFIG_DISPLAY;
2323 break;
2324 case WPS_PBC:
2325 method = WPS_CONFIG_PUSHBUTTON;
2326 break;
2327 default:
2328 method = 0;
2329 break;
2330 }
2331
ef922c4a
JM		 2332 if (p2p_prov_disc_req(wpa_s->global->p2p,
2333 wpa_s->pending_join_dev_addr, method, 1)
b22128ef
JM		 2334 < 0) {
2335 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
2336 "Discovery Request before joining an "
2337 "existing group");
2338 wpa_s->pending_pd_before_join = 0;
2339 goto start;
2340 }
2341
2342 /*
2343 * Actual join operation will be started from the Action frame
2344 * TX status callback.
2345 */
ef922c4a 2346 return;
b22128ef
JM		 2347 }
2348
2349 wpa_printf(MSG_DEBUG, "P2P: Target BSS/GO not yet in BSS table - "
2350 "cannot send Provision Discovery Request");
2351
2352start:
2353 /* Start join operation immediately */
ef922c4a
JM		 2354 wpas_p2p_join_start(wpa_s);
2355}
2356
2357
2358static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
2359{
2360 struct wpa_supplicant *wpa_s = eloop_ctx;
2361 int ret;
2362 struct wpa_driver_scan_params params;
2363 struct wpabuf *wps_ie, *ies;
2364
2365 os_memset(&params, 0, sizeof(params));
2366
2367 /* P2P Wildcard SSID */
2368 params.num_ssids = 1;
2369 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
2370 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
2371
2372 wpa_s->wps->dev.p2p = 1;
2373 wps_ie = wps_build_probe_req_ie(0, &wpa_s->wps->dev, wpa_s->wps->uuid,
2374 WPS_REQ_ENROLLEE);
2375 if (wps_ie == NULL) {
2376 wpas_p2p_scan_res_join(wpa_s, NULL);
2377 return;
2378 }
2379
2380 ies = wpabuf_alloc(wpabuf_len(wps_ie) + 100);
2381 if (ies == NULL) {
2382 wpabuf_free(wps_ie);
2383 wpas_p2p_scan_res_join(wpa_s, NULL);
2384 return;
2385 }
2386 wpabuf_put_buf(ies, wps_ie);
2387 wpabuf_free(wps_ie);
2388
2389 p2p_scan_ie(wpa_s->global->p2p, ies);
2390
2391 params.extra_ies = wpabuf_head(ies);
2392 params.extra_ies_len = wpabuf_len(ies);
2393
2394 /*
2395 * Run a scan to update BSS table and start Provision Discovery once
2396 * the new scan results become available.
2397 */
2398 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
2399 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
2400 ret = ieee80211_sta_req_scan(wpa_s, &params);
2401 else
2402 ret = wpa_drv_scan(wpa_s, &params);
2403
2404 wpabuf_free(ies);
2405
2406 if (ret) {
2407 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
2408 "try again later");
2409 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
2410 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
2411 }
2412}
2413
2414
2415static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
2416 const u8 *dev_addr, enum p2p_wps_method wps_method)
2417{
2418 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
2419 MACSTR " dev " MACSTR ")",
2420 MAC2STR(iface_addr), MAC2STR(dev_addr));
2421
2422 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
2423 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
2424 wpa_s->pending_join_wps_method = wps_method;
2425
2426 /* Make sure we are not running find during connection establishment */
2427 wpas_p2p_stop_find(wpa_s);
2428
2429 wpas_p2p_join_scan(wpa_s, NULL);
2430 return 0;
b22128ef
JM		 2431}
2432
2433
2434static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
2435{
2436 struct wpa_supplicant *group;
2437 struct p2p_go_neg_results res;
2438
2439 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
2440 if (group == NULL)
2441 return -1;
3c5126a4 2442 if (group != wpa_s) {
b22128ef
JM		 2443 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
2444 sizeof(group->p2p_pin));
3c5126a4
JM		 2445 group->p2p_wps_method = wpa_s->p2p_wps_method;
2446 }
b22128ef
JM		 2447
2448 group->p2p_in_provisioning = 1;
2449
2450 os_memset(&res, 0, sizeof(res));
2451 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
2452 ETH_ALEN);
2453 res.wps_method = wpa_s->pending_join_wps_method;
2454 wpas_start_wps_enrollee(group, &res);
2455
2456 return 0;
2457}
2458
2459
2460/**
2461 * wpas_p2p_connect - Request P2P Group Formation to be started
2462 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2463 * @peer_addr: Address of the peer P2P Device
2464 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
2465 * @persistent_group: Whether to create a persistent group
2466 * @join: Whether to join an existing group (as a client) instead of starting
2467 * Group Owner negotiation; @peer_addr is BSSID in that case
2468 * @auth: Whether to only authorize the connection instead of doing that and
2469 * initiating Group Owner negotiation
2470 * @go_intent: GO Intent or -1 to use default
2471 * @freq: Frequency for the group or 0 for auto-selection
2472 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on failure
2473 */
2474int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2475 const char *pin, enum p2p_wps_method wps_method,
2476 int persistent_group, int join, int auth, int go_intent,
2477 int freq)
2478{
2479 int force_freq = 0;
2480 u8 bssid[ETH_ALEN];
2481 int ret = 0;
2482 enum wpa_driver_if_type iftype;
2483
2484 if (go_intent < 0)
2485 go_intent = wpa_s->conf->p2p_go_intent;
2486
2487 if (!auth)
2488 wpa_s->p2p_long_listen = 0;
2489
3c5126a4
JM		 2490 wpa_s->p2p_wps_method = wps_method;
2491
b22128ef
JM		 2492 if (pin)
2493 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
2494 else if (wps_method == WPS_PIN_DISPLAY) {
2495 ret = wps_generate_pin();
2496 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
2497 ret);
2498 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
2499 wpa_s->p2p_pin);
2500 } else
2501 wpa_s->p2p_pin[0] = '\0';
2502
2503 if (join) {
2504 u8 iface_addr[ETH_ALEN];
108def93
JM		 2505 if (auth) {
2506 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
2507 "connect a running group from " MACSTR,
2508 MAC2STR(peer_addr));
2509 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
2510 return ret;
2511 }
b22128ef
JM		 2512 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
2513 iface_addr) < 0)
2514 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
2515 if (wpas_p2p_join(wpa_s, iface_addr, peer_addr, wps_method) <
2516 0)
2517 return -1;
2518 return ret;
2519 }
2520
2521 if (freq > 0)
2522 force_freq = freq;
2523 else if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2524 wpa_s->assoc_freq)
2525 force_freq = wpa_s->assoc_freq;
2526 else {
2527 force_freq = wpa_drv_shared_freq(wpa_s);
2528 if (force_freq < 0)
2529 force_freq = 0;
2530 }
2531
2532 if (force_freq > 0) {
2533 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
2534 "channel we are already using (%u MHz) on another "
2535 "interface", force_freq);
2536 }
2537
2538 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
2539
2540 if (!wpa_s->create_p2p_iface) {
2541 if (auth) {
2542 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2543 go_intent, wpa_s->own_addr,
2544 force_freq, persistent_group)
2545 < 0)
2546 return -1;
2547 return ret;
2548 }
2549 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
2550 go_intent, wpa_s->own_addr,
2551 force_freq, persistent_group) < 0)
2552 return -1;
2553 return ret;
2554 }
2555
2556 /* Prepare to add a new interface for the group */
2557 iftype = WPA_IF_P2P_GROUP;
2558 if (join)
2559 iftype = WPA_IF_P2P_CLIENT;
2560 else if (go_intent == 15)
2561 iftype = WPA_IF_P2P_GO;
2562 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
2563 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2564 "interface for the group");
2565 return -1;
2566 }
2567
2568 if (auth) {
2569 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
2570 go_intent,
2571 wpa_s->pending_interface_addr,
2572 force_freq, persistent_group) < 0)
2573 return -1;
2574 return ret;
2575 }
2576 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method, go_intent,
2577 wpa_s->pending_interface_addr,
2578 force_freq, persistent_group) < 0) {
2579 wpas_p2p_remove_pending_group_interface(wpa_s);
2580 return -1;
2581 }
2582 return ret;
2583}
2584
2585
2586/**
2587 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
2588 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2589 * @freq: Frequency of the channel in MHz
2590 * @duration: Duration of the stay on the channel in milliseconds
2591 *
2592 * This callback is called when the driver indicates that it has started the
2593 * requested remain-on-channel duration.
2594 */
2595void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2596 unsigned int freq, unsigned int duration)
2597{
07a30a66 2598 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 2599 wpa_s->off_channel_freq = freq;
2600 wpas_send_action_cb(wpa_s, NULL);
2601 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
2602 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
2603 wpa_s->pending_listen_duration);
2604 wpa_s->pending_listen_freq = 0;
2605 }
2606}
2607
2608
2609static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
2610 unsigned int timeout)
2611{
2612 /* Limit maximum Listen state time based on driver limitation. */
2613 if (timeout > wpa_s->max_remain_on_chan)
2614 timeout = wpa_s->max_remain_on_chan;
2615
2616 return p2p_listen(wpa_s->global->p2p, timeout);
2617}
2618
2619
2620/**
2621 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
2622 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2623 * @freq: Frequency of the channel in MHz
2624 *
2625 * This callback is called when the driver indicates that a remain-on-channel
2626 * operation has been completed, i.e., the duration on the requested channel
2627 * has timed out.
2628 */
2629void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
2630 unsigned int freq)
2631{
2632 wpa_s->off_channel_freq = 0;
2633 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
2634 return; /* P2P module started a new operation */
2635 if (wpa_s->pending_action_tx)
2636 return;
2637 if (wpa_s->p2p_long_listen > 0)
2638 wpa_s->p2p_long_listen -= 5;
2639 if (wpa_s->p2p_long_listen > 0) {
2640 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
2641 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen * 1000);
2642 }
2643}
2644
2645
2646/**
2647 * wpas_p2p_group_remove - Remove a P2P group
2648 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2649 * @ifname: Network interface name of the group interface or "*" to remove all
2650 * groups
2651 * Returns: 0 on success, -1 on failure
2652 *
2653 * This function is used to remove a P2P group. This can be used to disconnect
2654 * from a group in which the local end is a P2P Client or to end a P2P Group in
2655 * case the local end is the Group Owner. If a virtual network interface was
2656 * created for this group, that interface will be removed. Otherwise, only the
2657 * configured P2P group network will be removed from the interface.
2658 */
2659int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
2660{
2661 struct wpa_global *global = wpa_s->global;
2662
2663 if (os_strcmp(ifname, "*") == 0) {
2664 struct wpa_supplicant *prev;
2665 wpa_s = global->ifaces;
2666 while (wpa_s) {
2667 prev = wpa_s;
2668 wpa_s = wpa_s->next;
2669 wpas_p2p_group_delete(prev);
2670 }
2671 return 0;
2672 }
2673
2674 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2675 if (os_strcmp(wpa_s->ifname, ifname) == 0)
2676 break;
2677 }
2678
2679 if (wpa_s == NULL)
2680 return -1;
2681
2682 wpas_p2p_group_delete(wpa_s);
2683
2684 return 0;
2685}
2686
2687
2688static void wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
2689 struct p2p_go_neg_results *params,
2690 int freq)
2691{
2692 u8 bssid[ETH_ALEN];
2693 int res;
2694
2695 os_memset(params, 0, sizeof(*params));
2696 params->role_go = 1;
2697 params->freq = 2412;
2698 if (freq)
2699 params->freq = freq;
2700 else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
2701 wpa_s->conf->p2p_oper_channel >= 1 &&
2702 wpa_s->conf->p2p_oper_channel <= 11)
2703 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
2704 else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
2705 wpa_s->conf->p2p_oper_reg_class == 118)
2706 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
2707 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
2708 wpa_s->assoc_freq && !freq) {
2709 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
2710 "already using");
2711 params->freq = wpa_s->assoc_freq;
2712 }
2713
2714 res = wpa_drv_shared_freq(wpa_s);
2715 if (res > 0 && !freq) {
2716 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
2717 "already using on a shared interface");
2718 params->freq = res;
2719 }
2720}
2721
2722
2723static struct wpa_supplicant *
2724wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
2725 int go)
2726{
2727 struct wpa_supplicant *group_wpa_s;
2728
2729 if (!wpas_p2p_create_iface(wpa_s))
2730 return wpa_s;
2731
2732 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
2733 WPA_IF_P2P_CLIENT) < 0)
2734 return NULL;
2735 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
2736 if (group_wpa_s == NULL) {
2737 wpas_p2p_remove_pending_group_interface(wpa_s);
2738 return NULL;
2739 }
2740
2741 return group_wpa_s;
2742}
2743
2744
2745/**
2746 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
2747 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2748 * @persistent_group: Whether to create a persistent group
2749 * @freq: Frequency for the group or 0 to indicate no hardcoding
2750 * Returns: 0 on success, -1 on failure
2751 *
2752 * This function creates a new P2P group with the local end as the Group Owner,
2753 * i.e., without using Group Owner Negotiation.
2754 */
2755int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
2756 int freq)
2757{
2758 struct p2p_go_neg_results params;
2759
2760 wpas_p2p_init_go_params(wpa_s, &params, freq);
2761 p2p_go_params(wpa_s->global->p2p, &params);
2762 params.persistent_group = persistent_group;
2763
2764 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
2765 if (wpa_s == NULL)
2766 return -1;
2767 wpas_start_wps_go(wpa_s, &params, 0);
2768
2769 return 0;
2770}
2771
2772
2773static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
2774 struct wpa_ssid *params, int addr_allocated)
2775{
2776 struct wpa_ssid *ssid;
2777
2778 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
2779 if (wpa_s == NULL)
2780 return -1;
2781
2782 wpa_supplicant_ap_deinit(wpa_s);
2783
2784 ssid = wpa_config_add_network(wpa_s->conf);
2785 if (ssid == NULL)
2786 return -1;
2787 wpas_notify_network_added(wpa_s, ssid);
2788 wpa_config_set_network_defaults(ssid);
2789 ssid->temporary = 1;
2790 ssid->proto = WPA_PROTO_RSN;
2791 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
2792 ssid->group_cipher = WPA_CIPHER_CCMP;
2793 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
2794 ssid->ssid = os_malloc(params->ssid_len);
2795 if (ssid->ssid == NULL) {
2796 wpas_notify_network_removed(wpa_s, ssid);
2797 wpa_config_remove_network(wpa_s->conf, ssid->id);
2798 return -1;
2799 }
2800 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
2801 ssid->ssid_len = params->ssid_len;
2802 ssid->p2p_group = 1;
2803 if (params->psk_set) {
2804 os_memcpy(ssid->psk, params->psk, 32);
2805 ssid->psk_set = 1;
2806 }
2807 if (params->passphrase)
2808 ssid->passphrase = os_strdup(params->passphrase);
2809
2810 wpa_supplicant_select_network(wpa_s, ssid);
2811
2812 wpa_s->show_group_started = 1;
2813
2814 return 0;
2815}
2816
2817
2818int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
2819 struct wpa_ssid *ssid, int addr_allocated,
2820 int freq)
2821{
2822 struct p2p_go_neg_results params;
2823
2824 if (ssid->disabled != 2 || ssid->ssid == NULL)
2825 return -1;
2826
2827 wpa_s->p2p_long_listen = 0;
2828 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2829
2830 if (ssid->mode == WPAS_MODE_INFRA)
2831 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
2832
2833 if (ssid->mode != WPAS_MODE_P2P_GO)
2834 return -1;
2835
2836 wpas_p2p_init_go_params(wpa_s, &params, freq);
2837
2838 params.role_go = 1;
2839 if (ssid->passphrase == NULL ||
2840 os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
2841 wpa_printf(MSG_DEBUG, "P2P: Invalid passphrase in persistent "
2842 "group");
2843 return -1;
2844 }
2845 os_strlcpy(params.passphrase, ssid->passphrase,
2846 sizeof(params.passphrase));
2847 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
2848 params.ssid_len = ssid->ssid_len;
2849 params.persistent_group = 1;
2850
2851 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
2852 if (wpa_s == NULL)
2853 return -1;
2854
2855 wpas_start_wps_go(wpa_s, &params, 0);
2856
2857 return 0;
2858}
2859
2860
2861static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
2862 struct wpabuf *proberesp_ies)
2863{
2864 struct wpa_supplicant *wpa_s = ctx;
2865 if (wpa_s->ap_iface) {
2866 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
2867 if (beacon_ies) {
2868 wpabuf_free(hapd->p2p_beacon_ie);
2869 hapd->p2p_beacon_ie = beacon_ies;
2870 }
2871 wpabuf_free(hapd->p2p_probe_resp_ie);
2872 hapd->p2p_probe_resp_ie = proberesp_ies;
2873 } else {
2874 wpabuf_free(beacon_ies);
2875 wpabuf_free(proberesp_ies);
2876 }
2877 wpa_supplicant_ap_update_beacon(wpa_s);
2878}
2879
2880
2881struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
2882 int persistent_group,
2883 int group_formation)
2884{
2885 struct p2p_group *group;
2886 struct p2p_group_config *cfg;
2887
2888 cfg = os_zalloc(sizeof(*cfg));
2889 if (cfg == NULL)
2890 return NULL;
2891
2892 cfg->persistent_group = persistent_group;
2893 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
2894 cfg->cb_ctx = wpa_s;
2895 cfg->ie_update = wpas_p2p_ie_update;
2896
2897 group = p2p_group_init(wpa_s->global->p2p, cfg);
2898 if (group == NULL)
2899 os_free(cfg);
2900 if (!group_formation)
2901 p2p_group_notif_formation_done(group);
2902 wpa_s->p2p_group = group;
2903 return group;
2904}
2905
2906
2907void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2908 int registrar)
2909{
2910 if (!wpa_s->p2p_in_provisioning) {
2911 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
2912 "provisioning not in progress");
2913 return;
2914 }
2915
2916 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
2917 NULL);
2918 if (wpa_s->global->p2p)
2919 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
2920 wpas_group_formation_completed(wpa_s, 1);
2921}
2922
2923
2924int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
2925 const char *config_method)
2926{
2927 u16 config_methods;
2928
2929 if (os_strcmp(config_method, "display") == 0)
2930 config_methods = WPS_CONFIG_DISPLAY;
2931 else if (os_strcmp(config_method, "keypad") == 0)
2932 config_methods = WPS_CONFIG_KEYPAD;
2933 else if (os_strcmp(config_method, "pbc") == 0 ||
2934 os_strcmp(config_method, "pushbutton") == 0)
2935 config_methods = WPS_CONFIG_PUSHBUTTON;
2936 else
2937 return -1;
2938
2939 if (wpa_s->global->p2p == NULL)
2940 return -1;
2941
2942 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
2943 config_methods, 0);
2944}
2945
2946
2947int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
2948 char *end)
2949{
2950 return p2p_scan_result_text(ies, ies_len, buf, end);
2951}
2952
2953
2954int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
2955 enum p2p_discovery_type type)
2956{
2957 wpa_s->p2p_long_listen = 0;
2958
2959 return p2p_find(wpa_s->global->p2p, timeout, type);
2960}
2961
2962
2963void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
2964{
2965 wpa_s->p2p_long_listen = 0;
ef922c4a 2966 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 2967
2968 p2p_stop_find(wpa_s->global->p2p);
2969
2970 wpas_p2p_remove_pending_group_interface(wpa_s);
2971}
2972
2973
2974static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
2975{
2976 struct wpa_supplicant *wpa_s = eloop_ctx;
2977 wpa_s->p2p_long_listen = 0;
2978}
2979
2980
2981int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
2982{
2983 int res;
2984
2985 if (timeout == 0) {
2986 /*
2987 * This is a request for unlimited Listen state. However, at
2988 * least for now, this is mapped to a Listen state for one
2989 * hour.
2990 */
2991 timeout = 3600;
2992 }
2993 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
2994 wpa_s->p2p_long_listen = 0;
2995
2996 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
2997 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
2998 wpa_s->p2p_long_listen = timeout;
2999 eloop_register_timeout(timeout, 0,
3000 wpas_p2p_long_listen_timeout,
3001 wpa_s, NULL);
3002 }
3003
3004 return res;
3005}
3006
3007
4c08c0bd 3008int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 3009 u8 *buf, size_t len, int p2p_group)
3010{
4c08c0bd
JM		 3011 struct wpabuf *p2p_ie;
3012 int ret;
3013
b22128ef
JM		 3014 if (wpa_s->global->p2p_disabled)
3015 return -1;
3016 if (wpa_s->global->p2p == NULL)
3017 return -1;
3018
4c08c0bd
JM		 3019 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
3020 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
3021 p2p_group, p2p_ie);
3022 wpabuf_free(p2p_ie);
3023
3024 return ret;
b22128ef
JM		 3025}
3026
3027
3028int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
3029 const u8 *ie, size_t ie_len)
3030{
3031 if (wpa_s->global->p2p_disabled)
3032 return 0;
3033 if (wpa_s->global->p2p == NULL)
3034 return 0;
3035
3036 return p2p_probe_req_rx(wpa_s->global->p2p, addr, ie, ie_len);
3037}
3038
3039
3040void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
3041 const u8 *sa, const u8 *bssid,
3042 u8 category, const u8 *data, size_t len, int freq)
3043{
3044 if (wpa_s->global->p2p_disabled)
3045 return;
3046 if (wpa_s->global->p2p == NULL)
3047 return;
3048
3049 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
3050 freq);
3051}
3052
3053
3054void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
3055{
3056 if (wpa_s->global->p2p_disabled)
3057 return;
3058 if (wpa_s->global->p2p == NULL)
3059 return;
3060
3061 p2p_scan_ie(wpa_s->global->p2p, ies);
3062}
3063
3064
3065void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
3066{
3067 p2p_group_deinit(wpa_s->p2p_group);
3068 wpa_s->p2p_group = NULL;
3069}
3070
3071
3072int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
3073{
3074 wpa_s->p2p_long_listen = 0;
3075
3076 return p2p_reject(wpa_s->global->p2p, addr);
3077}
3078
3079
3080/* Invite to reinvoke a persistent group */
3081int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3082 struct wpa_ssid *ssid, const u8 *go_dev_addr)
3083{
3084 enum p2p_invite_role role;
3085 u8 *bssid = NULL;
3086
3087 if (ssid->mode == WPAS_MODE_P2P_GO) {
3088 role = P2P_INVITE_ROLE_GO;
3089 if (peer_addr == NULL) {
3090 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
3091 "address in invitation command");
3092 return -1;
3093 }
3094 if (wpas_p2p_create_iface(wpa_s)) {
3095 if (wpas_p2p_add_group_interface(wpa_s,
3096 WPA_IF_P2P_GO) < 0) {
3097 wpa_printf(MSG_ERROR, "P2P: Failed to "
3098 "allocate a new interface for the "
3099 "group");
3100 return -1;
3101 }
3102 bssid = wpa_s->pending_interface_addr;
3103 } else
3104 bssid = wpa_s->own_addr;
3105 } else {
3106 role = P2P_INVITE_ROLE_CLIENT;
3107 peer_addr = ssid->bssid;
3108 }
3109 wpa_s->pending_invite_ssid_id = ssid->id;
3110
3111 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
3112 ssid->ssid, ssid->ssid_len, 0, go_dev_addr, 1);
3113}
3114
3115
3116/* Invite to join an active group */
3117int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
3118 const u8 *peer_addr, const u8 *go_dev_addr)
3119{
3120 struct wpa_global *global = wpa_s->global;
3121 enum p2p_invite_role role;
3122 u8 *bssid = NULL;
3123 struct wpa_ssid *ssid;
3124
3125 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3126 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3127 break;
3128 }
3129 if (wpa_s == NULL) {
3130 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
3131 return -1;
3132 }
3133
3134 ssid = wpa_s->current_ssid;
3135 if (ssid == NULL) {
3136 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
3137 "invitation");
3138 return -1;
3139 }
3140
3141 if (ssid->mode == WPAS_MODE_P2P_GO) {
3142 role = P2P_INVITE_ROLE_ACTIVE_GO;
3143 bssid = wpa_s->own_addr;
3144 if (go_dev_addr == NULL)
2e062d5d 3145 go_dev_addr = wpa_s->parent->own_addr;
b22128ef
JM		 3146 } else {
3147 role = P2P_INVITE_ROLE_CLIENT;
3148 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
3149 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
3150 "invite to current group");
3151 return -1;
3152 }
3153 bssid = wpa_s->bssid;
3154 if (go_dev_addr == NULL &&
3155 !is_zero_ether_addr(wpa_s->go_dev_addr))
3156 go_dev_addr = wpa_s->go_dev_addr;
3157 }
3158 wpa_s->pending_invite_ssid_id = -1;
3159
3160 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
d9d6a58c
JM		 3161 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
3162 go_dev_addr, 0);
b22128ef
JM		 3163}
3164
3165
3166void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
3167{
3168 struct wpa_ssid *ssid = wpa_s->current_ssid;
3169 const char *ssid_txt;
3170 u8 go_dev_addr[ETH_ALEN];
3171 int persistent;
3172
3173 if (!wpa_s->show_group_started || !ssid)
3174 return;
3175
3176 wpa_s->show_group_started = 0;
3177
3178 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
3179 os_memset(go_dev_addr, 0, ETH_ALEN);
3180 if (ssid->bssid_set)
3181 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
3182 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
3183 ssid->ssid_len);
3184 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
3185
3186 if (ssid->passphrase == NULL && ssid->psk_set) {
3187 char psk[65];
3188 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
3189 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3190 "%s client ssid=\"%s\" psk=%s go_dev_addr=" MACSTR
3191 "%s",
3192 wpa_s->ifname, ssid_txt, psk, MAC2STR(go_dev_addr),
3193 persistent ? " [PERSISTENT]" : "");
3194 } else {
3195 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
3196 "%s client ssid=\"%s\" passphrase=\"%s\" go_dev_addr="
3197 MACSTR "%s",
3198 wpa_s->ifname, ssid_txt,
3199 ssid->passphrase ? ssid->passphrase : "",
3200 MAC2STR(go_dev_addr),
3201 persistent ? " [PERSISTENT]" : "");
3202 }
3203
3204 if (persistent)
3205 wpas_p2p_store_persistent_group(wpa_s->parent, ssid,
3206 go_dev_addr);
3207}
3208
3209
3210int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
3211 u32 interval1, u32 duration2, u32 interval2)
3212{
3213 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
3214 wpa_s->current_ssid == NULL ||
3215 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
3216 return -1;
3217
3218 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
3219 wpa_s->own_addr, wpa_s->assoc_freq,
3220 duration1, interval1, duration2, interval2);
3221}
3222
3223
3224int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
3225 unsigned int interval)
3226{
3227 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
3228}
3229
3230
3231void wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3232 u16 reason_code, const u8 *ie, size_t ie_len)
3233{
3234 if (wpa_s->global->p2p_disabled)
3235 return;
3236
3237 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3238}
3239
3240
3241void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3242 u16 reason_code, const u8 *ie, size_t ie_len)
3243{
3244 if (wpa_s->global->p2p_disabled)
3245 return;
3246
3247 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie, ie_len);
3248}
3249
3250
3251void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
3252{
3253 struct p2p_data *p2p = wpa_s->global->p2p;
3254
3255 if (p2p == NULL)
3256 return;
3257
3258 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
3259 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
3260
3261 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE) {
3262 u8 pri_dev_type[8];
3263 if (wpa_s->conf->device_type) {
3264 if (wps_dev_type_str2bin(wpa_s->conf->device_type,
3265 pri_dev_type) < 0) {
3266 wpa_printf(MSG_ERROR, "P2P: Invalid "
3267 "device_type");
3268 } else
3269 p2p_set_pri_dev_type(p2p, pri_dev_type);
3270 }
3271 }
3272
3273 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE) {
3274 u8 sec_dev_type[P2P_SEC_DEVICE_TYPES][8];
3275 size_t num = 0;
3276 int i;
3277 for (i = 0; i < MAX_SEC_DEVICE_TYPES; i++) {
3278 if (wpa_s->conf->sec_device_type[i] == NULL)
3279 continue;
3280 if (wps_dev_type_str2bin(
3281 wpa_s->conf->sec_device_type[i],
3282 sec_dev_type[num]) < 0) {
3283 wpa_printf(MSG_ERROR, "P2P: Invalid "
3284 "sec_device_type");
3285 continue;
3286 }
3287 num++;
3288 if (num == P2P_SEC_DEVICE_TYPES)
3289 break;
3290 }
3291 p2p_set_sec_dev_types(p2p, (void *) sec_dev_type, num);
3292 }
3293
3294 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
3295 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
3296 char country[3];
3297 country[0] = wpa_s->conf->country[0];
3298 country[1] = wpa_s->conf->country[1];
3299 country[2] = 0x04;
3300 p2p_set_country(p2p, country);
3301 }
3302
3303 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
3304 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
3305 wpa_s->conf->p2p_ssid_postfix ?
3306 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
3307 0);
3308 }
3309}
aefb53bd
JM		 3310
3311
3312int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
3313 int duration)
3314{
3315 if (!wpa_s->ap_iface)
3316 return -1;
3317 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
3318 duration);
3319}
72044390
JM		 3320
3321
3322int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
3323{
3324 if (wpa_s->global->p2p_disabled)
3325 return -1;
3326 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3327 return -1;
3328
3329 wpa_s->global->cross_connection = enabled;
3330 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
3331
3332 if (!enabled) {
3333 struct wpa_supplicant *iface;
3334
3335 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
3336 {
3337 if (iface->cross_connect_enabled == 0)
3338 continue;
3339
3340 iface->cross_connect_enabled = 0;
3341 iface->cross_connect_in_use = 0;
3342 wpa_msg(iface->parent, MSG_INFO,
3343 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3344 iface->ifname, iface->cross_connect_uplink);
3345 }
3346 }
3347
3348 return 0;
3349}
3350
3351
3352static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
3353{
3354 struct wpa_supplicant *iface;
3355
3356 if (!uplink->global->cross_connection)
3357 return;
3358
3359 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3360 if (!iface->cross_connect_enabled)
3361 continue;
3362 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3363 0)
3364 continue;
3365 if (iface->ap_iface == NULL)
3366 continue;
3367 if (iface->cross_connect_in_use)
3368 continue;
3369
3370 iface->cross_connect_in_use = 1;
3371 wpa_msg(iface->parent, MSG_INFO,
3372 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3373 iface->ifname, iface->cross_connect_uplink);
3374 }
3375}
3376
3377
3378static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
3379{
3380 struct wpa_supplicant *iface;
3381
3382 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
3383 if (!iface->cross_connect_enabled)
3384 continue;
3385 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
3386 0)
3387 continue;
3388 if (!iface->cross_connect_in_use)
3389 continue;
3390
3391 wpa_msg(iface->parent, MSG_INFO,
3392 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
3393 iface->ifname, iface->cross_connect_uplink);
3394 iface->cross_connect_in_use = 0;
3395 }
3396}
3397
3398
3399void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
3400{
3401 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
3402 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
3403 wpa_s->cross_connect_disallowed)
3404 wpas_p2p_disable_cross_connect(wpa_s);
3405 else
3406 wpas_p2p_enable_cross_connect(wpa_s);
3407}
3408
3409
3410void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
3411{
3412 wpas_p2p_disable_cross_connect(wpa_s);
3413}
3414
3415
3416static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
3417{
3418 struct wpa_supplicant *iface;
3419
3420 if (!wpa_s->global->cross_connection)
3421 return;
3422
3423 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
3424 if (iface == wpa_s)
3425 continue;
3426 if (iface->drv_flags &
3427 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
3428 continue;
3429 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
3430 continue;
3431
3432 wpa_s->cross_connect_enabled = 1;
3433 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
3434 sizeof(wpa_s->cross_connect_uplink));
3435 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
3436 "%s to %s whenever uplink is available",
3437 wpa_s->ifname, wpa_s->cross_connect_uplink);
3438
3439 if (iface->ap_iface || iface->current_ssid == NULL ||
3440 iface->current_ssid->mode != WPAS_MODE_INFRA ||
3441 iface->cross_connect_disallowed ||
3442 iface->wpa_state != WPA_COMPLETED)
3443 break;
3444
3445 wpa_s->cross_connect_in_use = 1;
3446 wpa_msg(wpa_s->parent, MSG_INFO,
3447 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
3448 wpa_s->ifname, wpa_s->cross_connect_uplink);
3449 break;
3450 }
3451}
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