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P2P: Cancel group formation timeout on group removal (on client)
[thirdparty/hostap.git] / wpa_supplicant / p2p_supplicant.c
CommitLineData
b22128ef
JM		 1/*
2 * wpa_supplicant - P2P
3 * Copyright (c) 2009-2010, Atheros Communications
4 *
e22d4d95
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
b22128ef
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eloop.h"
13#include "common/ieee802_11_common.h"
14#include "common/ieee802_11_defs.h"
15#include "common/wpa_ctrl.h"
16#include "wps/wps_i.h"
17#include "p2p/p2p.h"
18#include "ap/hostapd.h"
adc33680 19#include "ap/ap_config.h"
aefb53bd 20#include "ap/p2p_hostapd.h"
20a0b03d
JM		 21#include "eapol_supp/eapol_supp_sm.h"
22#include "rsn_supp/wpa.h"
b22128ef
JM		 23#include "wpa_supplicant_i.h"
24#include "driver_i.h"
25#include "ap.h"
26#include "config_ssid.h"
27#include "config.h"
b22128ef
JM		 28#include "notify.h"
29#include "scan.h"
30#include "bss.h"
24f6497c 31#include "offchannel.h"
b22128ef
JM		 32#include "wps_supplicant.h"
33#include "p2p_supplicant.h"
34
35
9b1ab931
JM		 36/*
37 * How many times to try to scan to find the GO before giving up on join
38 * request.
39 */
40#define P2P_MAX_JOIN_SCAN_ATTEMPTS 10
41
84286a22
SDU		 42#define P2P_AUTO_PD_SCAN_ATTEMPTS 5
43
c8106615
JM		 44#ifndef P2P_MAX_CLIENT_IDLE
45/*
46 * How many seconds to try to reconnect to the GO when connection in P2P client
47 * role has been lost.
48 */
49#define P2P_MAX_CLIENT_IDLE 10
50#endif /* P2P_MAX_CLIENT_IDLE */
51
361cdf34
JM		 52#ifndef P2P_MAX_INITIAL_CONN_WAIT
53/*
54 * How many seconds to wait for initial 4-way handshake to get completed after
55 * WPS provisioning step.
56 */
57#define P2P_MAX_INITIAL_CONN_WAIT 10
58#endif /* P2P_MAX_INITIAL_CONN_WAIT */
59
05a77b3b
JM		 60#ifndef P2P_CONCURRENT_SEARCH_DELAY
61#define P2P_CONCURRENT_SEARCH_DELAY 500
62#endif /* P2P_CONCURRENT_SEARCH_DELAY */
63
8dba4aef
JM		 64enum p2p_group_removal_reason {
65 P2P_GROUP_REMOVAL_UNKNOWN,
66 P2P_GROUP_REMOVAL_SILENT,
67 P2P_GROUP_REMOVAL_FORMATION_FAILED,
68 P2P_GROUP_REMOVAL_REQUESTED,
69 P2P_GROUP_REMOVAL_IDLE_TIMEOUT,
70 P2P_GROUP_REMOVAL_UNAVAILABLE,
71 P2P_GROUP_REMOVAL_GO_ENDING_SESSION
72};
73
9b1ab931 74
b22128ef
JM		 75static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx);
76static struct wpa_supplicant *
77wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
78 int go);
79static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s);
84286a22 80static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq);
ef922c4a 81static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
108def93 82static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0
JM		 83 const u8 *dev_addr, enum p2p_wps_method wps_method,
84 int auto_join);
b22128ef 85static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s);
72044390 86static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s);
3071e181
JM		 87static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx);
88static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s);
77dfafd0
JM		 89static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
90 void *timeout_ctx);
aa9bb764
JM		 91static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
92 int group_added);
8713a2e6 93static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s);
b22128ef
JM		 94
95
96static void wpas_p2p_scan_res_handler(struct wpa_supplicant *wpa_s,
97 struct wpa_scan_results *scan_res)
98{
99 size_t i;
100
9526fd29 101 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef
JM		 102 return;
103
104 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS)",
105 (int) scan_res->num);
106
107 for (i = 0; i < scan_res->num; i++) {
108 struct wpa_scan_res *bss = scan_res->res[i];
109 if (p2p_scan_res_handler(wpa_s->global->p2p, bss->bssid,
3dfd0484 110 bss->freq, bss->age, bss->level,
b22128ef
JM		 111 (const u8 *) (bss + 1),
112 bss->ie_len) > 0)
9bcf9541 113 break;
b22128ef
JM		 114 }
115
116 p2p_scan_res_handled(wpa_s->global->p2p);
117}
118
119
046ef4aa
JMB		 120static int wpas_p2p_scan(void *ctx, enum p2p_scan_type type, int freq,
121 unsigned int num_req_dev_types,
360182ed 122 const u8 *req_dev_types, const u8 *dev_id, u16 pw_id)
b22128ef
JM		 123{
124 struct wpa_supplicant *wpa_s = ctx;
99fcd404 125 struct wpa_supplicant *ifs;
b22128ef
JM		 126 struct wpa_driver_scan_params params;
127 int ret;
128 struct wpabuf *wps_ie, *ies;
129 int social_channels[] = { 2412, 2437, 2462, 0, 0 };
206e1f42 130 size_t ielen;
b22128ef 131
9526fd29
JM		 132 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
133 return -1;
134
99fcd404
JM		 135 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
136 if (ifs->sta_scan_pending &&
137 wpas_p2p_in_progress(wpa_s) == 2) {
138 wpa_printf(MSG_DEBUG, "Delaying P2P scan to allow "
139 "pending station mode scan to be "
140 "completed on interface %s", ifs->ifname);
e665ca9a 141 wpa_s->global->p2p_cb_on_scan_complete = 1;
99fcd404
JM		 142 wpa_supplicant_req_scan(ifs, 0, 0);
143 return 1;
144 }
145 }
146
b22128ef
JM		 147 os_memset(&params, 0, sizeof(params));
148
149 /* P2P Wildcard SSID */
150 params.num_ssids = 1;
151 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
152 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
153
154 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 155 wps_ie = wps_build_probe_req_ie(pw_id, &wpa_s->wps->dev,
156 wpa_s->wps->uuid, WPS_REQ_ENROLLEE,
046ef4aa 157 num_req_dev_types, req_dev_types);
b22128ef
JM		 158 if (wps_ie == NULL)
159 return -1;
160
206e1f42
JM		 161 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
162 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
b22128ef
JM		 163 if (ies == NULL) {
164 wpabuf_free(wps_ie);
165 return -1;
166 }
167 wpabuf_put_buf(ies, wps_ie);
168 wpabuf_free(wps_ie);
169
6d92fa6e 170 p2p_scan_ie(wpa_s->global->p2p, ies, dev_id);
b22128ef 171
47185fc7 172 params.p2p_probe = 1;
b22128ef
JM		 173 params.extra_ies = wpabuf_head(ies);
174 params.extra_ies_len = wpabuf_len(ies);
175
176 switch (type) {
177 case P2P_SCAN_SOCIAL:
178 params.freqs = social_channels;
179 break;
180 case P2P_SCAN_FULL:
181 break;
b22128ef
JM		 182 case P2P_SCAN_SOCIAL_PLUS_ONE:
183 social_channels[3] = freq;
184 params.freqs = social_channels;
185 break;
186 }
187
17fbb751 188 ret = wpa_drv_scan(wpa_s, &params);
b22128ef
JM		 189
190 wpabuf_free(ies);
191
39185dfa 192 if (ret) {
58d3760e
JM		 193 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
194 if (ifs->scanning ||
195 ifs->scan_res_handler == wpas_p2p_scan_res_handler) {
196 wpa_s->global->p2p_cb_on_scan_complete = 1;
197 ret = 1;
198 break;
199 }
39185dfa 200 }
5b376333
JM		 201 } else
202 wpa_s->scan_res_handler = wpas_p2p_scan_res_handler;
0c96fd6d 203
b22128ef
JM		 204 return ret;
205}
206
207
b22128ef
JM		 208static enum wpa_driver_if_type wpas_p2p_if_type(int p2p_group_interface)
209{
210 switch (p2p_group_interface) {
211 case P2P_GROUP_INTERFACE_PENDING:
212 return WPA_IF_P2P_GROUP;
213 case P2P_GROUP_INTERFACE_GO:
214 return WPA_IF_P2P_GO;
215 case P2P_GROUP_INTERFACE_CLIENT:
216 return WPA_IF_P2P_CLIENT;
217 }
218
219 return WPA_IF_P2P_GROUP;
220}
221
222
6c0da49f
JM		 223static struct wpa_supplicant * wpas_get_p2p_group(struct wpa_supplicant *wpa_s,
224 const u8 *ssid,
225 size_t ssid_len, int *go)
226{
227 struct wpa_ssid *s;
228
229 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
230 for (s = wpa_s->conf->ssid; s; s = s->next) {
231 if (s->disabled != 0 || !s->p2p_group ||
232 s->ssid_len != ssid_len ||
233 os_memcmp(ssid, s->ssid, ssid_len) != 0)
234 continue;
235 if (s->mode == WPAS_MODE_P2P_GO &&
236 s != wpa_s->current_ssid)
237 continue;
238 if (go)
239 *go = s->mode == WPAS_MODE_P2P_GO;
240 return wpa_s;
241 }
242 }
243
244 return NULL;
245}
246
247
8dba4aef
JM		 248static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
249 enum p2p_group_removal_reason removal_reason)
b22128ef
JM		 250{
251 struct wpa_ssid *ssid;
252 char *gtype;
3071e181
JM		 253 const char *reason;
254
b22128ef
JM		 255 ssid = wpa_s->current_ssid;
256 if (ssid == NULL) {
257 /*
258 * The current SSID was not known, but there may still be a
0c802384
JM		 259 * pending P2P group interface waiting for provisioning or a
260 * P2P group that is trying to reconnect.
b22128ef
JM		 261 */
262 ssid = wpa_s->conf->ssid;
263 while (ssid) {
6d22a377 264 if (ssid->p2p_group && ssid->disabled != 2)
b22128ef
JM		 265 break;
266 ssid = ssid->next;
267 }
6f1ca696
JM		 268 if (ssid == NULL &&
269 wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)
270 {
30ee7692
MN		 271 wpa_printf(MSG_ERROR, "P2P: P2P group interface "
272 "not found");
273 return -1;
274 }
b22128ef
JM		 275 }
276 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO)
277 gtype = "GO";
278 else if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
279 (ssid && ssid->mode == WPAS_MODE_INFRA)) {
280 wpa_s->reassociate = 0;
281 wpa_s->disconnected = 1;
282 wpa_supplicant_deauthenticate(wpa_s,
283 WLAN_REASON_DEAUTH_LEAVING);
284 gtype = "client";
285 } else
286 gtype = "GO";
72044390
JM		 287 if (wpa_s->cross_connect_in_use) {
288 wpa_s->cross_connect_in_use = 0;
289 wpa_msg(wpa_s->parent, MSG_INFO,
290 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
291 wpa_s->ifname, wpa_s->cross_connect_uplink);
292 }
8dba4aef 293 switch (removal_reason) {
3071e181
JM		 294 case P2P_GROUP_REMOVAL_REQUESTED:
295 reason = " reason=REQUESTED";
296 break;
8dba4aef
JM		 297 case P2P_GROUP_REMOVAL_FORMATION_FAILED:
298 reason = " reason=FORMATION_FAILED";
299 break;
3071e181
JM		 300 case P2P_GROUP_REMOVAL_IDLE_TIMEOUT:
301 reason = " reason=IDLE";
302 break;
c973f386
JM		 303 case P2P_GROUP_REMOVAL_UNAVAILABLE:
304 reason = " reason=UNAVAILABLE";
305 break;
3fc14102
JM		 306 case P2P_GROUP_REMOVAL_GO_ENDING_SESSION:
307 reason = " reason=GO_ENDING_SESSION";
308 break;
3071e181
JM		 309 default:
310 reason = "";
311 break;
312 }
8dba4aef 313 if (removal_reason != P2P_GROUP_REMOVAL_SILENT) {
aa9bb764
JM		 314 wpa_msg(wpa_s->parent, MSG_INFO,
315 P2P_EVENT_GROUP_REMOVED "%s %s%s",
316 wpa_s->ifname, gtype, reason);
317 }
408af93e 318
dddc7045
JM		 319 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
320 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
77dfafd0
JM		 321 if (eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
322 wpa_s->parent, NULL) > 0)
323 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group formation "
324 "timeout");
a7a30b90 325
8dba4aef 326 if (removal_reason != P2P_GROUP_REMOVAL_SILENT && ssid)
408af93e
JB		 327 wpas_notify_p2p_group_removed(wpa_s, ssid, gtype);
328
b22128ef
JM		 329 if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
330 struct wpa_global *global;
331 char *ifname;
332 enum wpa_driver_if_type type;
333 wpa_printf(MSG_DEBUG, "P2P: Remove group interface %s",
334 wpa_s->ifname);
335 global = wpa_s->global;
336 ifname = os_strdup(wpa_s->ifname);
337 type = wpas_p2p_if_type(wpa_s->p2p_group_interface);
df509539 338 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
b22128ef
JM		 339 wpa_s = global->ifaces;
340 if (wpa_s && ifname)
341 wpa_drv_if_remove(wpa_s, type, ifname);
342 os_free(ifname);
0aadd568 343 return 1;
b22128ef
JM		 344 }
345
346 wpa_printf(MSG_DEBUG, "P2P: Remove temporary group network");
347 if (ssid && (ssid->p2p_group ||
348 ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION ||
349 (ssid->key_mgmt & WPA_KEY_MGMT_WPS))) {
350 int id = ssid->id;
20a0b03d
JM		 351 if (ssid == wpa_s->current_ssid) {
352 wpa_sm_set_config(wpa_s->wpa, NULL);
353 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
b22128ef 354 wpa_s->current_ssid = NULL;
20a0b03d 355 }
c2762e41
JS		 356 /*
357 * Networks objects created during any P2P activities are not
358 * exposed out as they might/will confuse certain non-P2P aware
359 * applications since these network objects won't behave like
360 * regular ones.
361 *
362 * Likewise, we don't send out network removed signals for such
363 * network objects.
364 */
b22128ef
JM		 365 wpa_config_remove_network(wpa_s->conf, id);
366 wpa_supplicant_clear_status(wpa_s);
433cd2ce 367 wpa_supplicant_cancel_sched_scan(wpa_s);
83218d20 368 wpa_s->sta_scan_pending = 0;
b22128ef
JM		 369 } else {
370 wpa_printf(MSG_DEBUG, "P2P: Temporary group network not "
371 "found");
372 }
3c29244e
EP		 373 if (wpa_s->ap_iface)
374 wpa_supplicant_ap_deinit(wpa_s);
375 else
376 wpa_drv_deinit_p2p_cli(wpa_s);
30ee7692
MN		 377
378 return 0;
b22128ef
JM		 379}
380
381
382static int wpas_p2p_persistent_group(struct wpa_supplicant *wpa_s,
383 u8 *go_dev_addr,
384 const u8 *ssid, size_t ssid_len)
385{
386 struct wpa_bss *bss;
387 const u8 *bssid;
388 struct wpabuf *p2p;
389 u8 group_capab;
390 const u8 *addr;
391
392 if (wpa_s->go_params)
393 bssid = wpa_s->go_params->peer_interface_addr;
394 else
395 bssid = wpa_s->bssid;
396
397 bss = wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
398 if (bss == NULL) {
399 u8 iface_addr[ETH_ALEN];
400 if (p2p_get_interface_addr(wpa_s->global->p2p, bssid,
401 iface_addr) == 0)
402 bss = wpa_bss_get(wpa_s, iface_addr, ssid, ssid_len);
403 }
404 if (bss == NULL) {
405 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
406 "group is persistent - BSS " MACSTR " not found",
407 MAC2STR(bssid));
408 return 0;
409 }
410
411 p2p = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
412 if (p2p == NULL) {
413 wpa_printf(MSG_DEBUG, "P2P: Could not figure out whether "
414 "group is persistent - BSS " MACSTR
415 " did not include P2P IE", MAC2STR(bssid));
416 wpa_hexdump(MSG_DEBUG, "P2P: Probe Response IEs",
417 (u8 *) (bss + 1), bss->ie_len);
418 wpa_hexdump(MSG_DEBUG, "P2P: Beacon IEs",
419 ((u8 *) bss + 1) + bss->ie_len,
420 bss->beacon_ie_len);
421 return 0;
422 }
423
424 group_capab = p2p_get_group_capab(p2p);
425 addr = p2p_get_go_dev_addr(p2p);
426 wpa_printf(MSG_DEBUG, "P2P: Checking whether group is persistent: "
427 "group_capab=0x%x", group_capab);
428 if (addr) {
429 os_memcpy(go_dev_addr, addr, ETH_ALEN);
430 wpa_printf(MSG_DEBUG, "P2P: GO Device Address " MACSTR,
431 MAC2STR(addr));
432 } else
433 os_memset(go_dev_addr, 0, ETH_ALEN);
434 wpabuf_free(p2p);
435
436 wpa_printf(MSG_DEBUG, "P2P: BSS " MACSTR " group_capab=0x%x "
437 "go_dev_addr=" MACSTR,
438 MAC2STR(bssid), group_capab, MAC2STR(go_dev_addr));
439
440 return group_capab & P2P_GROUP_CAPAB_PERSISTENT_GROUP;
441}
442
443
4b6baa2f
JMB		 444static int wpas_p2p_store_persistent_group(struct wpa_supplicant *wpa_s,
445 struct wpa_ssid *ssid,
446 const u8 *go_dev_addr)
b22128ef
JM		 447{
448 struct wpa_ssid *s;
449 int changed = 0;
450
451 wpa_printf(MSG_DEBUG, "P2P: Storing credentials for a persistent "
452 "group (GO Dev Addr " MACSTR ")", MAC2STR(go_dev_addr));
453 for (s = wpa_s->conf->ssid; s; s = s->next) {
454 if (s->disabled == 2 &&
455 os_memcmp(go_dev_addr, s->bssid, ETH_ALEN) == 0 &&
456 s->ssid_len == ssid->ssid_len &&
457 os_memcmp(ssid->ssid, s->ssid, ssid->ssid_len) == 0)
458 break;
459 }
460
461 if (s) {
462 wpa_printf(MSG_DEBUG, "P2P: Update existing persistent group "
463 "entry");
464 if (ssid->passphrase && !s->passphrase)
465 changed = 1;
466 else if (ssid->passphrase && s->passphrase &&
467 os_strcmp(ssid->passphrase, s->passphrase) != 0)
468 changed = 1;
469 } else {
470 wpa_printf(MSG_DEBUG, "P2P: Create a new persistent group "
471 "entry");
472 changed = 1;
473 s = wpa_config_add_network(wpa_s->conf);
474 if (s == NULL)
4b6baa2f 475 return -1;
c2762e41
JS		 476
477 /*
478 * Instead of network_added we emit persistent_group_added
479 * notification. Also to keep the defense checks in
480 * persistent_group obj registration method, we set the
481 * relevant flags in s to designate it as a persistent group.
482 */
483 s->p2p_group = 1;
484 s->p2p_persistent_group = 1;
485 wpas_notify_persistent_group_added(wpa_s, s);
b22128ef
JM		 486 wpa_config_set_network_defaults(s);
487 }
488
489 s->p2p_group = 1;
490 s->p2p_persistent_group = 1;
491 s->disabled = 2;
492 s->bssid_set = 1;
493 os_memcpy(s->bssid, go_dev_addr, ETH_ALEN);
494 s->mode = ssid->mode;
495 s->auth_alg = WPA_AUTH_ALG_OPEN;
496 s->key_mgmt = WPA_KEY_MGMT_PSK;
497 s->proto = WPA_PROTO_RSN;
498 s->pairwise_cipher = WPA_CIPHER_CCMP;
d1c8ac88 499 s->export_keys = 1;
b22128ef
JM		 500 if (ssid->passphrase) {
501 os_free(s->passphrase);
502 s->passphrase = os_strdup(ssid->passphrase);
503 }
504 if (ssid->psk_set) {
505 s->psk_set = 1;
506 os_memcpy(s->psk, ssid->psk, 32);
507 }
508 if (s->passphrase && !s->psk_set)
509 wpa_config_update_psk(s);
510 if (s->ssid == NULL || s->ssid_len < ssid->ssid_len) {
511 os_free(s->ssid);
512 s->ssid = os_malloc(ssid->ssid_len);
513 }
514 if (s->ssid) {
515 s->ssid_len = ssid->ssid_len;
516 os_memcpy(s->ssid, ssid->ssid, s->ssid_len);
517 }
518
519#ifndef CONFIG_NO_CONFIG_WRITE
520 if (changed && wpa_s->conf->update_config &&
521 wpa_config_write(wpa_s->confname, wpa_s->conf)) {
522 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
523 }
524#endif /* CONFIG_NO_CONFIG_WRITE */
4b6baa2f
JMB		 525
526 return s->id;
b22128ef
JM		 527}
528
529
fbdcfd57
JM		 530static void wpas_p2p_add_persistent_group_client(struct wpa_supplicant *wpa_s,
531 const u8 *addr)
532{
533 struct wpa_ssid *ssid, *s;
534 u8 *n;
535 size_t i;
22316795 536 int found = 0;
fbdcfd57
JM		 537
538 ssid = wpa_s->current_ssid;
539 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GO ||
540 !ssid->p2p_persistent_group)
541 return;
542
543 for (s = wpa_s->parent->conf->ssid; s; s = s->next) {
544 if (s->disabled != 2 || s->mode != WPAS_MODE_P2P_GO)
545 continue;
546
547 if (s->ssid_len == ssid->ssid_len &&
548 os_memcmp(s->ssid, ssid->ssid, s->ssid_len) == 0)
549 break;
550 }
551
552 if (s == NULL)
553 return;
554
555 for (i = 0; s->p2p_client_list && i < s->num_p2p_clients; i++) {
556 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN, addr,
22316795
JM		 557 ETH_ALEN) != 0)
558 continue;
559
560 if (i == s->num_p2p_clients - 1)
561 return; /* already the most recent entry */
562
563 /* move the entry to mark it most recent */
564 os_memmove(s->p2p_client_list + i * ETH_ALEN,
565 s->p2p_client_list + (i + 1) * ETH_ALEN,
566 (s->num_p2p_clients - i - 1) * ETH_ALEN);
567 os_memcpy(s->p2p_client_list +
568 (s->num_p2p_clients - 1) * ETH_ALEN, addr, ETH_ALEN);
569 found = 1;
570 break;
fbdcfd57
JM		 571 }
572
b4a5dfa9 573 if (!found && s->num_p2p_clients < P2P_MAX_STORED_CLIENTS) {
22316795
JM		 574 n = os_realloc_array(s->p2p_client_list,
575 s->num_p2p_clients + 1, ETH_ALEN);
576 if (n == NULL)
577 return;
578 os_memcpy(n + s->num_p2p_clients * ETH_ALEN, addr, ETH_ALEN);
579 s->p2p_client_list = n;
580 s->num_p2p_clients++;
b4a5dfa9
JM		 581 } else if (!found) {
582 /* Not enough room for an additional entry - drop the oldest
583 * entry */
584 os_memmove(s->p2p_client_list,
585 s->p2p_client_list + ETH_ALEN,
586 (s->num_p2p_clients - 1) * ETH_ALEN);
587 os_memcpy(s->p2p_client_list +
588 (s->num_p2p_clients - 1) * ETH_ALEN,
589 addr, ETH_ALEN);
22316795 590 }
fbdcfd57
JM		 591
592#ifndef CONFIG_NO_CONFIG_WRITE
593 if (wpa_s->parent->conf->update_config &&
594 wpa_config_write(wpa_s->parent->confname, wpa_s->parent->conf))
595 wpa_printf(MSG_DEBUG, "P2P: Failed to update configuration");
596#endif /* CONFIG_NO_CONFIG_WRITE */
597}
598
599
b22128ef
JM		 600static void wpas_group_formation_completed(struct wpa_supplicant *wpa_s,
601 int success)
602{
603 struct wpa_ssid *ssid;
604 const char *ssid_txt;
605 int client;
606 int persistent;
607 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 608 int network_id = -1;
b22128ef
JM		 609
610 /*
611 * This callback is likely called for the main interface. Update wpa_s
612 * to use the group interface if a new interface was created for the
613 * group.
614 */
615 if (wpa_s->global->p2p_group_formation)
616 wpa_s = wpa_s->global->p2p_group_formation;
d1b024c9 617 wpa_s->global->p2p_group_formation = NULL;
b22128ef
JM		 618 wpa_s->p2p_in_provisioning = 0;
619
620 if (!success) {
621 wpa_msg(wpa_s->parent, MSG_INFO,
622 P2P_EVENT_GROUP_FORMATION_FAILURE);
8dba4aef
JM		 623 wpas_p2p_group_delete(wpa_s,
624 P2P_GROUP_REMOVAL_FORMATION_FAILED);
b22128ef
JM		 625 return;
626 }
627
628 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_FORMATION_SUCCESS);
629
630 ssid = wpa_s->current_ssid;
631 if (ssid && ssid->mode == WPAS_MODE_P2P_GROUP_FORMATION) {
632 ssid->mode = WPAS_MODE_P2P_GO;
633 p2p_group_notif_formation_done(wpa_s->p2p_group);
634 wpa_supplicant_ap_mac_addr_filter(wpa_s, NULL);
635 }
636
637 persistent = 0;
638 if (ssid) {
639 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
640 client = ssid->mode == WPAS_MODE_INFRA;
641 if (ssid->mode == WPAS_MODE_P2P_GO) {
642 persistent = ssid->p2p_persistent_group;
d7e70476 643 os_memcpy(go_dev_addr, wpa_s->global->p2p_dev_addr,
b22128ef
JM		 644 ETH_ALEN);
645 } else
646 persistent = wpas_p2p_persistent_group(wpa_s,
647 go_dev_addr,
648 ssid->ssid,
649 ssid->ssid_len);
650 } else {
651 ssid_txt = "";
652 client = wpa_s->p2p_group_interface ==
653 P2P_GROUP_INTERFACE_CLIENT;
62c0d27e 654 os_memset(go_dev_addr, 0, ETH_ALEN);
b22128ef
JM		 655 }
656
657 wpa_s->show_group_started = 0;
658 if (client) {
659 /*
660 * Indicate event only after successfully completed 4-way
661 * handshake, i.e., when the interface is ready for data
662 * packets.
663 */
664 wpa_s->show_group_started = 1;
665 } else if (ssid && ssid->passphrase == NULL && ssid->psk_set) {
666 char psk[65];
667 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
668 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 669 "%s GO ssid=\"%s\" freq=%d psk=%s go_dev_addr=" MACSTR
670 "%s",
671 wpa_s->ifname, ssid_txt, ssid->frequency, psk,
672 MAC2STR(go_dev_addr),
b22128ef 673 persistent ? " [PERSISTENT]" : "");
72044390 674 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 675 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 676 } else {
677 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 678 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
679 "go_dev_addr=" MACSTR "%s",
d394a22f 680 wpa_s->ifname, ssid_txt, ssid ? ssid->frequency : 0,
b22128ef
JM		 681 ssid && ssid->passphrase ? ssid->passphrase : "",
682 MAC2STR(go_dev_addr),
683 persistent ? " [PERSISTENT]" : "");
72044390 684 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 685 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 686 }
687
688 if (persistent)
4b6baa2f
JMB		 689 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
690 ssid, go_dev_addr);
21fe9e75 691 if (network_id < 0 && ssid)
4b6baa2f
JMB		 692 network_id = ssid->id;
693 if (!client)
694 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
b22128ef
JM		 695}
696
697
24f6497c
JM		 698static void wpas_p2p_send_action_tx_status(struct wpa_supplicant *wpa_s,
699 unsigned int freq,
700 const u8 *dst, const u8 *src,
701 const u8 *bssid,
702 const u8 *data, size_t data_len,
703 enum offchannel_send_action_result
704 result)
534525ff 705{
24f6497c 706 enum p2p_send_action_result res = P2P_SEND_ACTION_SUCCESS;
b22128ef 707
9526fd29 708 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef 709 return;
3ac17eba
JM		 710 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
711 return;
b22128ef 712
24f6497c
JM		 713 switch (result) {
714 case OFFCHANNEL_SEND_ACTION_SUCCESS:
715 res = P2P_SEND_ACTION_SUCCESS;
716 break;
717 case OFFCHANNEL_SEND_ACTION_NO_ACK:
718 res = P2P_SEND_ACTION_NO_ACK;
719 break;
720 case OFFCHANNEL_SEND_ACTION_FAILED:
721 res = P2P_SEND_ACTION_FAILED;
722 break;
b22128ef
JM		 723 }
724
24f6497c 725 p2p_send_action_cb(wpa_s->global->p2p, freq, dst, src, bssid, res);
b22128ef 726
f63b8542
JM		 727 if (result != OFFCHANNEL_SEND_ACTION_SUCCESS &&
728 wpa_s->pending_pd_before_join &&
24f6497c 729 (os_memcmp(dst, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
175171ac
JM		 730 os_memcmp(dst, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0) &&
731 wpa_s->p2p_fallback_to_go_neg) {
b22128ef 732 wpa_s->pending_pd_before_join = 0;
175171ac
JM		 733 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: No ACK for PD Req "
734 "during p2p_connect-auto");
735 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
736 return;
b22128ef
JM		 737 }
738}
739
740
741static int wpas_send_action(void *ctx, unsigned int freq, const u8 *dst,
742 const u8 *src, const u8 *bssid, const u8 *buf,
743 size_t len, unsigned int wait_time)
744{
745 struct wpa_supplicant *wpa_s = ctx;
24f6497c
JM		 746 return offchannel_send_action(wpa_s, freq, dst, src, bssid, buf, len,
747 wait_time,
b106173a 748 wpas_p2p_send_action_tx_status, 1);
b22128ef
JM		 749}
750
751
752static void wpas_send_action_done(void *ctx)
753{
754 struct wpa_supplicant *wpa_s = ctx;
24f6497c 755 offchannel_send_action_done(wpa_s);
b22128ef
JM		 756}
757
758
759static int wpas_copy_go_neg_results(struct wpa_supplicant *wpa_s,
760 struct p2p_go_neg_results *params)
761{
762 if (wpa_s->go_params == NULL) {
763 wpa_s->go_params = os_malloc(sizeof(*params));
764 if (wpa_s->go_params == NULL)
765 return -1;
766 }
767 os_memcpy(wpa_s->go_params, params, sizeof(*params));
768 return 0;
769}
770
771
772static void wpas_start_wps_enrollee(struct wpa_supplicant *wpa_s,
773 struct p2p_go_neg_results *res)
774{
3b29972c
JM		 775 wpa_printf(MSG_DEBUG, "P2P: Start WPS Enrollee for peer " MACSTR,
776 MAC2STR(res->peer_interface_addr));
e9a7ae41
JM		 777 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Start WPS Enrollee for SSID",
778 res->ssid, res->ssid_len);
b22128ef
JM		 779 wpa_supplicant_ap_deinit(wpa_s);
780 wpas_copy_go_neg_results(wpa_s, res);
781 if (res->wps_method == WPS_PBC)
3b29972c 782 wpas_wps_start_pbc(wpa_s, res->peer_interface_addr, 1);
3c5126a4
JM		 783 else {
784 u16 dev_pw_id = DEV_PW_DEFAULT;
785 if (wpa_s->p2p_wps_method == WPS_PIN_KEYPAD)
786 dev_pw_id = DEV_PW_REGISTRAR_SPECIFIED;
b22128ef 787 wpas_wps_start_pin(wpa_s, res->peer_interface_addr,
3c5126a4
JM		 788 wpa_s->p2p_pin, 1, dev_pw_id);
789 }
b22128ef
JM		 790}
791
792
793static void p2p_go_configured(void *ctx, void *data)
794{
795 struct wpa_supplicant *wpa_s = ctx;
796 struct p2p_go_neg_results *params = data;
797 struct wpa_ssid *ssid;
4b6baa2f 798 int network_id = -1;
b22128ef
JM		 799
800 ssid = wpa_s->current_ssid;
801 if (ssid && ssid->mode == WPAS_MODE_P2P_GO) {
802 wpa_printf(MSG_DEBUG, "P2P: Group setup without provisioning");
d1b024c9
JM		 803 if (wpa_s->global->p2p_group_formation == wpa_s)
804 wpa_s->global->p2p_group_formation = NULL;
bb4d4deb
MH		 805 if (os_strlen(params->passphrase) > 0) {
806 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
807 "%s GO ssid=\"%s\" freq=%d passphrase=\"%s\" "
808 "go_dev_addr=" MACSTR "%s", wpa_s->ifname,
809 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
810 ssid->frequency, params->passphrase,
811 MAC2STR(wpa_s->global->p2p_dev_addr),
812 params->persistent_group ? " [PERSISTENT]" :
813 "");
814 } else {
815 char psk[65];
816 wpa_snprintf_hex(psk, sizeof(psk), params->psk,
817 sizeof(params->psk));
818 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
819 "%s GO ssid=\"%s\" freq=%d psk=%s "
820 "go_dev_addr=" MACSTR "%s", wpa_s->ifname,
821 wpa_ssid_txt(ssid->ssid, ssid->ssid_len),
822 ssid->frequency, psk,
823 MAC2STR(wpa_s->global->p2p_dev_addr),
824 params->persistent_group ? " [PERSISTENT]" :
825 "");
826 }
4b6baa2f 827
b22128ef 828 if (params->persistent_group)
4b6baa2f 829 network_id = wpas_p2p_store_persistent_group(
b22128ef 830 wpa_s->parent, ssid,
d7e70476 831 wpa_s->global->p2p_dev_addr);
4b6baa2f
JMB		 832 if (network_id < 0)
833 network_id = ssid->id;
834 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 0);
72044390 835 wpas_p2p_cross_connect_setup(wpa_s);
3071e181 836 wpas_p2p_set_group_idle_timeout(wpa_s);
b22128ef
JM		 837 return;
838 }
839
840 wpa_printf(MSG_DEBUG, "P2P: Setting up WPS for GO provisioning");
841 if (wpa_supplicant_ap_mac_addr_filter(wpa_s,
842 params->peer_interface_addr)) {
843 wpa_printf(MSG_DEBUG, "P2P: Failed to setup MAC address "
844 "filtering");
845 return;
846 }
847 if (params->wps_method == WPS_PBC)
d601247c 848 wpa_supplicant_ap_wps_pbc(wpa_s, params->peer_interface_addr,
c3daaf33 849 params->peer_device_addr);
b22128ef
JM		 850 else if (wpa_s->p2p_pin[0])
851 wpa_supplicant_ap_wps_pin(wpa_s, params->peer_interface_addr,
c423708f 852 wpa_s->p2p_pin, NULL, 0, 0);
b22128ef
JM		 853 os_free(wpa_s->go_params);
854 wpa_s->go_params = NULL;
855}
856
857
858static void wpas_start_wps_go(struct wpa_supplicant *wpa_s,
859 struct p2p_go_neg_results *params,
860 int group_formation)
861{
862 struct wpa_ssid *ssid;
863
ac06fb12
JM		 864 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Starting GO");
865 if (wpas_copy_go_neg_results(wpa_s, params) < 0) {
866 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not copy GO Negotiation "
867 "results");
b22128ef 868 return;
ac06fb12 869 }
b22128ef
JM		 870
871 ssid = wpa_config_add_network(wpa_s->conf);
ac06fb12
JM		 872 if (ssid == NULL) {
873 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Could not add network for GO");
b22128ef 874 return;
ac06fb12 875 }
b22128ef 876
a9e02d59
JM		 877 wpa_s->show_group_started = 0;
878
b22128ef
JM		 879 wpa_config_set_network_defaults(ssid);
880 ssid->temporary = 1;
881 ssid->p2p_group = 1;
882 ssid->p2p_persistent_group = params->persistent_group;
883 ssid->mode = group_formation ? WPAS_MODE_P2P_GROUP_FORMATION :
884 WPAS_MODE_P2P_GO;
885 ssid->frequency = params->freq;
7aeac985 886 ssid->ht40 = params->ht40;
b22128ef
JM		 887 ssid->ssid = os_zalloc(params->ssid_len + 1);
888 if (ssid->ssid) {
889 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
890 ssid->ssid_len = params->ssid_len;
891 }
892 ssid->auth_alg = WPA_AUTH_ALG_OPEN;
893 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
894 ssid->proto = WPA_PROTO_RSN;
895 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
bb4d4deb
MH		 896 if (os_strlen(params->passphrase) > 0) {
897 ssid->passphrase = os_strdup(params->passphrase);
898 if (ssid->passphrase == NULL) {
899 wpa_msg(wpa_s, MSG_ERROR, "P2P: Failed to copy "
900 "passphrase for GO");
901 wpa_config_remove_network(wpa_s->conf, ssid->id);
902 return;
903 }
904 } else
905 ssid->passphrase = NULL;
30c371e8
MH		 906 ssid->psk_set = params->psk_set;
907 if (ssid->psk_set)
908 os_memcpy(ssid->psk, params->psk, sizeof(ssid->psk));
6350a148 909 else if (ssid->passphrase)
30c371e8 910 wpa_config_update_psk(ssid);
462a7439 911 ssid->ap_max_inactivity = wpa_s->parent->conf->p2p_go_max_inactivity;
b22128ef
JM		 912
913 wpa_s->ap_configured_cb = p2p_go_configured;
914 wpa_s->ap_configured_cb_ctx = wpa_s;
915 wpa_s->ap_configured_cb_data = wpa_s->go_params;
7dcdcfd6 916 wpa_s->connect_without_scan = ssid;
b22128ef
JM		 917 wpa_s->reassociate = 1;
918 wpa_s->disconnected = 0;
ac06fb12
JM		 919 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Request scan (that will be skipped) to "
920 "start GO)");
b22128ef
JM		 921 wpa_supplicant_req_scan(wpa_s, 0, 0);
922}
923
924
925static void wpas_p2p_clone_config(struct wpa_supplicant *dst,
926 const struct wpa_supplicant *src)
927{
928 struct wpa_config *d;
929 const struct wpa_config *s;
930
931 d = dst->conf;
932 s = src->conf;
933
934#define C(n) if (s->n) d->n = os_strdup(s->n)
935 C(device_name);
936 C(manufacturer);
937 C(model_name);
938 C(model_number);
939 C(serial_number);
b22128ef
JM		 940 C(config_methods);
941#undef C
3071e181 942
2f646b6e
JB		 943 os_memcpy(d->device_type, s->device_type, WPS_DEV_TYPE_LEN);
944 os_memcpy(d->sec_device_type, s->sec_device_type,
945 sizeof(d->sec_device_type));
946 d->num_sec_device_types = s->num_sec_device_types;
947
3071e181 948 d->p2p_group_idle = s->p2p_group_idle;
b029bd33 949 d->p2p_intra_bss = s->p2p_intra_bss;
acc247b2 950 d->persistent_reconnect = s->persistent_reconnect;
f571b593 951 d->max_num_sta = s->max_num_sta;
1298c145 952 d->pbc_in_m1 = s->pbc_in_m1;
b22128ef
JM		 953}
954
955
956static int wpas_p2p_add_group_interface(struct wpa_supplicant *wpa_s,
957 enum wpa_driver_if_type type)
958{
959 char ifname[120], force_ifname[120];
960
961 if (wpa_s->pending_interface_name[0]) {
962 wpa_printf(MSG_DEBUG, "P2P: Pending virtual interface exists "
963 "- skip creation of a new one");
964 if (is_zero_ether_addr(wpa_s->pending_interface_addr)) {
965 wpa_printf(MSG_DEBUG, "P2P: Pending virtual address "
966 "unknown?! ifname='%s'",
967 wpa_s->pending_interface_name);
968 return -1;
969 }
970 return 0;
971 }
972
a1eca5cf 973 os_snprintf(ifname, sizeof(ifname), "p2p-%s-%d", wpa_s->ifname,
b22128ef 974 wpa_s->p2p_group_idx);
a1eca5cf
JM		 975 if (os_strlen(ifname) >= IFNAMSIZ &&
976 os_strlen(wpa_s->ifname) < IFNAMSIZ) {
977 /* Try to avoid going over the IFNAMSIZ length limit */
978 os_snprintf(ifname, sizeof(ifname), "p2p-%d",
979 wpa_s->p2p_group_idx);
980 }
b22128ef
JM		 981 force_ifname[0] = '\0';
982
983 wpa_printf(MSG_DEBUG, "P2P: Create a new interface %s for the group",
984 ifname);
985 wpa_s->p2p_group_idx++;
986
987 wpa_s->pending_interface_type = type;
988 if (wpa_drv_if_add(wpa_s, type, ifname, NULL, NULL, force_ifname,
e17a2477 989 wpa_s->pending_interface_addr, NULL) < 0) {
b22128ef
JM		 990 wpa_printf(MSG_ERROR, "P2P: Failed to create new group "
991 "interface");
992 return -1;
993 }
994
995 if (force_ifname[0]) {
996 wpa_printf(MSG_DEBUG, "P2P: Driver forced interface name %s",
997 force_ifname);
998 os_strlcpy(wpa_s->pending_interface_name, force_ifname,
999 sizeof(wpa_s->pending_interface_name));
1000 } else
1001 os_strlcpy(wpa_s->pending_interface_name, ifname,
1002 sizeof(wpa_s->pending_interface_name));
1003 wpa_printf(MSG_DEBUG, "P2P: Created pending virtual interface %s addr "
1004 MACSTR, wpa_s->pending_interface_name,
1005 MAC2STR(wpa_s->pending_interface_addr));
1006
1007 return 0;
1008}
1009
1010
1011static void wpas_p2p_remove_pending_group_interface(
1012 struct wpa_supplicant *wpa_s)
1013{
1014 if (!wpa_s->pending_interface_name[0] ||
1015 is_zero_ether_addr(wpa_s->pending_interface_addr))
1016 return; /* No pending virtual interface */
1017
1018 wpa_printf(MSG_DEBUG, "P2P: Removing pending group interface %s",
1019 wpa_s->pending_interface_name);
1020 wpa_drv_if_remove(wpa_s, wpa_s->pending_interface_type,
1021 wpa_s->pending_interface_name);
1022 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1023 wpa_s->pending_interface_name[0] = '\0';
1024}
1025
1026
1027static struct wpa_supplicant *
1028wpas_p2p_init_group_interface(struct wpa_supplicant *wpa_s, int go)
1029{
1030 struct wpa_interface iface;
1031 struct wpa_supplicant *group_wpa_s;
1032
1033 if (!wpa_s->pending_interface_name[0]) {
1034 wpa_printf(MSG_ERROR, "P2P: No pending group interface");
d75e8806
JM		 1035 if (!wpas_p2p_create_iface(wpa_s))
1036 return NULL;
1037 /*
1038 * Something has forced us to remove the pending interface; try
1039 * to create a new one and hope for the best that we will get
1040 * the same local address.
1041 */
1042 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
1043 WPA_IF_P2P_CLIENT) < 0)
1044 return NULL;
b22128ef
JM		 1045 }
1046
1047 os_memset(&iface, 0, sizeof(iface));
1048 iface.ifname = wpa_s->pending_interface_name;
1049 iface.driver = wpa_s->driver->name;
1050 iface.ctrl_interface = wpa_s->conf->ctrl_interface;
1051 iface.driver_param = wpa_s->conf->driver_param;
1052 group_wpa_s = wpa_supplicant_add_iface(wpa_s->global, &iface);
1053 if (group_wpa_s == NULL) {
1054 wpa_printf(MSG_ERROR, "P2P: Failed to create new "
1055 "wpa_supplicant interface");
1056 return NULL;
1057 }
1058 wpa_s->pending_interface_name[0] = '\0';
1059 group_wpa_s->parent = wpa_s;
1060 group_wpa_s->p2p_group_interface = go ? P2P_GROUP_INTERFACE_GO :
1061 P2P_GROUP_INTERFACE_CLIENT;
1062 wpa_s->global->p2p_group_formation = group_wpa_s;
1063
1064 wpas_p2p_clone_config(group_wpa_s, wpa_s);
1065
1066 return group_wpa_s;
1067}
1068
1069
1070static void wpas_p2p_group_formation_timeout(void *eloop_ctx,
1071 void *timeout_ctx)
1072{
1073 struct wpa_supplicant *wpa_s = eloop_ctx;
1074 wpa_printf(MSG_DEBUG, "P2P: Group Formation timed out");
1075 if (wpa_s->global->p2p)
1076 p2p_group_formation_failed(wpa_s->global->p2p);
3ac17eba
JM		 1077 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1078 wpa_drv_p2p_group_formation_failed(wpa_s);
b22128ef
JM		 1079 wpas_group_formation_completed(wpa_s, 0);
1080}
1081
1082
1083void wpas_go_neg_completed(void *ctx, struct p2p_go_neg_results *res)
1084{
1085 struct wpa_supplicant *wpa_s = ctx;
1086
8eada5ca 1087 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1088 wpa_drv_cancel_remain_on_channel(wpa_s);
1089 wpa_s->off_channel_freq = 0;
07a30a66 1090 wpa_s->roc_waiting_drv_freq = 0;
b22128ef
JM		 1091 }
1092
1093 if (res->status) {
1094 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_FAILURE "status=%d",
1095 res->status);
e5a359cf 1096 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef
JM		 1097 wpas_p2p_remove_pending_group_interface(wpa_s);
1098 return;
1099 }
1100
e2308e4b
RM		 1101 if (wpa_s->p2p_go_ht40)
1102 res->ht40 = 1;
1103
b22128ef 1104 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_SUCCESS);
e5a359cf 1105 wpas_notify_p2p_go_neg_completed(wpa_s, res);
b22128ef 1106
23c84252
JM		 1107 if (res->role_go && wpa_s->p2p_persistent_id >= 0) {
1108 struct wpa_ssid *ssid;
1109 ssid = wpa_config_get_network(wpa_s->conf,
1110 wpa_s->p2p_persistent_id);
1111 if (ssid && ssid->disabled == 2 &&
1112 ssid->mode == WPAS_MODE_P2P_GO && ssid->passphrase) {
1113 size_t len = os_strlen(ssid->passphrase);
1114 wpa_printf(MSG_DEBUG, "P2P: Override passphrase based "
1115 "on requested persistent group");
1116 os_memcpy(res->passphrase, ssid->passphrase, len);
1117 res->passphrase[len] = '\0';
1118 }
1119 }
1120
b22128ef
JM		 1121 if (wpa_s->create_p2p_iface) {
1122 struct wpa_supplicant *group_wpa_s =
1123 wpas_p2p_init_group_interface(wpa_s, res->role_go);
1124 if (group_wpa_s == NULL) {
1125 wpas_p2p_remove_pending_group_interface(wpa_s);
1126 return;
1127 }
3c5126a4 1128 if (group_wpa_s != wpa_s) {
b22128ef
JM		 1129 os_memcpy(group_wpa_s->p2p_pin, wpa_s->p2p_pin,
1130 sizeof(group_wpa_s->p2p_pin));
3c5126a4
JM		 1131 group_wpa_s->p2p_wps_method = wpa_s->p2p_wps_method;
1132 }
b22128ef
JM		 1133 os_memset(wpa_s->pending_interface_addr, 0, ETH_ALEN);
1134 wpa_s->pending_interface_name[0] = '\0';
1135 group_wpa_s->p2p_in_provisioning = 1;
1136
1137 if (res->role_go)
1138 wpas_start_wps_go(group_wpa_s, res, 1);
1139 else
1140 wpas_start_wps_enrollee(group_wpa_s, res);
1141 } else {
1142 wpa_s->p2p_in_provisioning = 1;
1143 wpa_s->global->p2p_group_formation = wpa_s;
1144
1145 if (res->role_go)
1146 wpas_start_wps_go(wpa_s, res, 1);
1147 else
1148 wpas_start_wps_enrollee(ctx, res);
1149 }
1150
1151 wpa_s->p2p_long_listen = 0;
1152 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
1153
1154 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ae3e3421
JM		 1155 eloop_register_timeout(15 + res->peer_config_timeout / 100,
1156 (res->peer_config_timeout % 100) * 10000,
1157 wpas_p2p_group_formation_timeout, wpa_s, NULL);
b22128ef
JM		 1158}
1159
1160
3dfda83d 1161void wpas_go_neg_req_rx(void *ctx, const u8 *src, u16 dev_passwd_id)
b22128ef
JM		 1162{
1163 struct wpa_supplicant *wpa_s = ctx;
3dfda83d
JM		 1164 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_GO_NEG_REQUEST MACSTR
1165 " dev_passwd_id=%u", MAC2STR(src), dev_passwd_id);
32d1bce0
KRK		 1166
1167 wpas_notify_p2p_go_neg_req(wpa_s, src, dev_passwd_id);
b22128ef
JM		 1168}
1169
1170
c5db8e51 1171void wpas_dev_found(void *ctx, const u8 *addr,
8fd7dc1b
JB		 1172 const struct p2p_peer_info *info,
1173 int new_device)
b22128ef 1174{
5506d184 1175#ifndef CONFIG_NO_STDOUT_DEBUG
b22128ef
JM		 1176 struct wpa_supplicant *wpa_s = ctx;
1177 char devtype[WPS_DEV_TYPE_BUFSIZE];
c5db8e51 1178
b22128ef
JM		 1179 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_FOUND MACSTR
1180 " p2p_dev_addr=" MACSTR
1181 " pri_dev_type=%s name='%s' config_methods=0x%x "
1182 "dev_capab=0x%x group_capab=0x%x",
c5db8e51
KRK		 1183 MAC2STR(addr), MAC2STR(info->p2p_device_addr),
1184 wps_dev_type_bin2str(info->pri_dev_type, devtype,
1185 sizeof(devtype)),
1186 info->device_name, info->config_methods,
1187 info->dev_capab, info->group_capab);
5506d184 1188#endif /* CONFIG_NO_STDOUT_DEBUG */
d642d2d2
JB		 1189
1190 wpas_notify_p2p_device_found(ctx, info->p2p_device_addr, new_device);
b22128ef
JM		 1191}
1192
1193
56eeb8f2
JB		 1194static void wpas_dev_lost(void *ctx, const u8 *dev_addr)
1195{
1196 struct wpa_supplicant *wpa_s = ctx;
1197
3074d8f1
JJ		 1198 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_DEVICE_LOST
1199 "p2p_dev_addr=" MACSTR, MAC2STR(dev_addr));
1200
56eeb8f2
JB		 1201 wpas_notify_p2p_device_lost(wpa_s, dev_addr);
1202}
1203
1204
b22128ef
JM		 1205static int wpas_start_listen(void *ctx, unsigned int freq,
1206 unsigned int duration,
1207 const struct wpabuf *probe_resp_ie)
1208{
1209 struct wpa_supplicant *wpa_s = ctx;
1210
0e2e565a 1211 wpa_drv_set_ap_wps_ie(wpa_s, NULL, probe_resp_ie, NULL);
b22128ef
JM		 1212
1213 if (wpa_drv_probe_req_report(wpa_s, 1) < 0) {
1214 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver to "
1215 "report received Probe Request frames");
1216 return -1;
1217 }
1218
1219 wpa_s->pending_listen_freq = freq;
1220 wpa_s->pending_listen_duration = duration;
1221
1222 if (wpa_drv_remain_on_channel(wpa_s, freq, duration) < 0) {
1223 wpa_printf(MSG_DEBUG, "P2P: Failed to request the driver "
1224 "to remain on channel (%u MHz) for Listen "
1225 "state", freq);
1226 wpa_s->pending_listen_freq = 0;
1227 return -1;
1228 }
09d660b9 1229 wpa_s->off_channel_freq = 0;
07a30a66 1230 wpa_s->roc_waiting_drv_freq = freq;
b22128ef
JM		 1231
1232 return 0;
1233}
1234
1235
1236static void wpas_stop_listen(void *ctx)
1237{
1238 struct wpa_supplicant *wpa_s = ctx;
6cb22d2f 1239 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
b22128ef
JM		 1240 wpa_drv_cancel_remain_on_channel(wpa_s);
1241 wpa_s->off_channel_freq = 0;
07a30a66 1242 wpa_s->roc_waiting_drv_freq = 0;
b22128ef 1243 }
839b33ad 1244 wpa_drv_set_ap_wps_ie(wpa_s, NULL, NULL, NULL);
b22128ef
JM		 1245 wpa_drv_probe_req_report(wpa_s, 0);
1246}
1247
1248
1249static int wpas_send_probe_resp(void *ctx, const struct wpabuf *buf)
1250{
1251 struct wpa_supplicant *wpa_s = ctx;
9dbf53fe 1252 return wpa_drv_send_mlme(wpa_s, wpabuf_head(buf), wpabuf_len(buf), 1);
b22128ef
JM		 1253}
1254
1255
8c9ad085
JM		 1256/*
1257 * DNS Header section is used only to calculate compression pointers, so the
1258 * contents of this data does not matter, but the length needs to be reserved
1259 * in the virtual packet.
1260 */
1261#define DNS_HEADER_LEN 12
1262
1263/*
1264 * 27-octet in-memory packet from P2P specification containing two implied
1265 * queries for _tcp.lcoal. PTR IN and _udp.local. PTR IN
1266 */
1267#define P2P_SD_IN_MEMORY_LEN 27
1268
1269static int p2p_sd_dns_uncompress_label(char **upos, char *uend, u8 *start,
1270 u8 **spos, const u8 *end)
1271{
1272 while (*spos < end) {
1273 u8 val = ((*spos)[0] & 0xc0) >> 6;
1274 int len;
1275
1276 if (val == 1 || val == 2) {
1277 /* These are reserved values in RFC 1035 */
1278 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1279 "sequence starting with 0x%x", val);
1280 return -1;
1281 }
1282
1283 if (val == 3) {
1284 u16 offset;
1285 u8 *spos_tmp;
1286
1287 /* Offset */
1288 if (*spos + 2 > end) {
1289 wpa_printf(MSG_DEBUG, "P2P: No room for full "
1290 "DNS offset field");
1291 return -1;
1292 }
1293
1294 offset = (((*spos)[0] & 0x3f) << 8) | (*spos)[1];
1295 if (offset >= *spos - start) {
1296 wpa_printf(MSG_DEBUG, "P2P: Invalid DNS "
1297 "pointer offset %u", offset);
1298 return -1;
1299 }
1300
1301 (*spos) += 2;
1302 spos_tmp = start + offset;
1303 return p2p_sd_dns_uncompress_label(upos, uend, start,
1304 &spos_tmp,
1305 *spos - 2);
1306 }
1307
1308 /* Label */
1309 len = (*spos)[0] & 0x3f;
1310 if (len == 0)
1311 return 0;
1312
1313 (*spos)++;
1314 if (*spos + len > end) {
1315 wpa_printf(MSG_DEBUG, "P2P: Invalid domain name "
1316 "sequence - no room for label with length "
1317 "%u", len);
1318 return -1;
1319 }
1320
1321 if (*upos + len + 2 > uend)
1322 return -2;
1323
1324 os_memcpy(*upos, *spos, len);
1325 *spos += len;
1326 *upos += len;
1327 (*upos)[0] = '.';
1328 (*upos)++;
1329 (*upos)[0] = '\0';
1330 }
1331
1332 return 0;
1333}
1334
1335
1336/* Uncompress domain names per RFC 1035 using the P2P SD in-memory packet.
1337 * Returns -1 on parsing error (invalid input sequence), -2 if output buffer is
1338 * not large enough */
1339static int p2p_sd_dns_uncompress(char *buf, size_t buf_len, const u8 *msg,
1340 size_t msg_len, size_t offset)
1341{
1342 /* 27-octet in-memory packet from P2P specification */
1343 const char *prefix = "\x04_tcp\x05local\x00\x00\x0C\x00\x01"
1344 "\x04_udp\xC0\x11\x00\x0C\x00\x01";
1345 u8 *tmp, *end, *spos;
1346 char *upos, *uend;
1347 int ret = 0;
1348
1349 if (buf_len < 2)
1350 return -1;
1351 if (offset > msg_len)
1352 return -1;
1353
1354 tmp = os_malloc(DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN + msg_len);
1355 if (tmp == NULL)
1356 return -1;
1357 spos = tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN;
1358 end = spos + msg_len;
1359 spos += offset;
1360
1361 os_memset(tmp, 0, DNS_HEADER_LEN);
1362 os_memcpy(tmp + DNS_HEADER_LEN, prefix, P2P_SD_IN_MEMORY_LEN);
1363 os_memcpy(tmp + DNS_HEADER_LEN + P2P_SD_IN_MEMORY_LEN, msg, msg_len);
1364
1365 upos = buf;
1366 uend = buf + buf_len;
1367
1368 ret = p2p_sd_dns_uncompress_label(&upos, uend, tmp, &spos, end);
1369 if (ret) {
1370 os_free(tmp);
1371 return ret;
1372 }
1373
1374 if (upos == buf) {
1375 upos[0] = '.';
1376 upos[1] = '\0';
1377 } else if (upos[-1] == '.')
1378 upos[-1] = '\0';
1379
1380 os_free(tmp);
1381 return 0;
1382}
1383
1384
b22128ef
JM		 1385static struct p2p_srv_bonjour *
1386wpas_p2p_service_get_bonjour(struct wpa_supplicant *wpa_s,
1387 const struct wpabuf *query)
1388{
1389 struct p2p_srv_bonjour *bsrv;
1390 size_t len;
1391
1392 len = wpabuf_len(query);
1393 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1394 struct p2p_srv_bonjour, list) {
1395 if (len == wpabuf_len(bsrv->query) &&
1396 os_memcmp(wpabuf_head(query), wpabuf_head(bsrv->query),
1397 len) == 0)
1398 return bsrv;
1399 }
1400 return NULL;
1401}
1402
1403
1404static struct p2p_srv_upnp *
1405wpas_p2p_service_get_upnp(struct wpa_supplicant *wpa_s, u8 version,
1406 const char *service)
1407{
1408 struct p2p_srv_upnp *usrv;
1409
1410 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1411 struct p2p_srv_upnp, list) {
1412 if (version == usrv->version &&
1413 os_strcmp(service, usrv->service) == 0)
1414 return usrv;
1415 }
1416 return NULL;
1417}
1418
1419
1420static void wpas_sd_add_proto_not_avail(struct wpabuf *resp, u8 srv_proto,
1421 u8 srv_trans_id)
1422{
1423 u8 *len_pos;
1424
1425 if (wpabuf_tailroom(resp) < 5)
1426 return;
1427
1428 /* Length (to be filled) */
1429 len_pos = wpabuf_put(resp, 2);
1430 wpabuf_put_u8(resp, srv_proto);
1431 wpabuf_put_u8(resp, srv_trans_id);
1432 /* Status Code */
1433 wpabuf_put_u8(resp, P2P_SD_PROTO_NOT_AVAILABLE);
1434 /* Response Data: empty */
1435 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1436}
1437
1438
1439static void wpas_sd_all_bonjour(struct wpa_supplicant *wpa_s,
1440 struct wpabuf *resp, u8 srv_trans_id)
1441{
1442 struct p2p_srv_bonjour *bsrv;
1443 u8 *len_pos;
1444
1445 wpa_printf(MSG_DEBUG, "P2P: SD Request for all Bonjour services");
1446
1447 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1448 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1449 return;
1450 }
1451
1452 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1453 struct p2p_srv_bonjour, list) {
1454 if (wpabuf_tailroom(resp) <
1455 5 + wpabuf_len(bsrv->query) + wpabuf_len(bsrv->resp))
1456 return;
1457 /* Length (to be filled) */
1458 len_pos = wpabuf_put(resp, 2);
1459 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1460 wpabuf_put_u8(resp, srv_trans_id);
1461 /* Status Code */
1462 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1463 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1464 wpabuf_head(bsrv->resp),
1465 wpabuf_len(bsrv->resp));
1466 /* Response Data */
1467 wpabuf_put_buf(resp, bsrv->query); /* Key */
1468 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1469 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1470 2);
1471 }
1472}
1473
1474
8c9ad085
JM		 1475static int match_bonjour_query(struct p2p_srv_bonjour *bsrv, const u8 *query,
1476 size_t query_len)
1477{
1478 char str_rx[256], str_srv[256];
1479
1480 if (query_len < 3 || wpabuf_len(bsrv->query) < 3)
1481 return 0; /* Too short to include DNS Type and Version */
1482 if (os_memcmp(query + query_len - 3,
1483 wpabuf_head_u8(bsrv->query) + wpabuf_len(bsrv->query) - 3,
1484 3) != 0)
1485 return 0; /* Mismatch in DNS Type or Version */
1486 if (query_len == wpabuf_len(bsrv->query) &&
1487 os_memcmp(query, wpabuf_head(bsrv->query), query_len - 3) == 0)
1488 return 1; /* Binary match */
1489
1490 if (p2p_sd_dns_uncompress(str_rx, sizeof(str_rx), query, query_len - 3,
1491 0))
1492 return 0; /* Failed to uncompress query */
1493 if (p2p_sd_dns_uncompress(str_srv, sizeof(str_srv),
1494 wpabuf_head(bsrv->query),
1495 wpabuf_len(bsrv->query) - 3, 0))
1496 return 0; /* Failed to uncompress service */
1497
1498 return os_strcmp(str_rx, str_srv) == 0;
1499}
1500
1501
b22128ef
JM		 1502static void wpas_sd_req_bonjour(struct wpa_supplicant *wpa_s,
1503 struct wpabuf *resp, u8 srv_trans_id,
1504 const u8 *query, size_t query_len)
1505{
1506 struct p2p_srv_bonjour *bsrv;
b22128ef 1507 u8 *len_pos;
560f8bda 1508 int matches = 0;
b22128ef
JM		 1509
1510 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for Bonjour",
1511 query, query_len);
1512 if (dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1513 wpa_printf(MSG_DEBUG, "P2P: Bonjour protocol not available");
1514 wpas_sd_add_proto_not_avail(resp, P2P_SERV_BONJOUR,
1515 srv_trans_id);
1516 return;
1517 }
1518
1519 if (query_len == 0) {
1520 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1521 return;
1522 }
1523
560f8bda
JM		 1524 dl_list_for_each(bsrv, &wpa_s->global->p2p_srv_bonjour,
1525 struct p2p_srv_bonjour, list) {
8c9ad085 1526 if (!match_bonjour_query(bsrv, query, query_len))
560f8bda
JM		 1527 continue;
1528
1529 if (wpabuf_tailroom(resp) <
1530 5 + query_len + wpabuf_len(bsrv->resp))
1531 return;
1532
1533 matches++;
b22128ef 1534
560f8bda
JM		 1535 /* Length (to be filled) */
1536 len_pos = wpabuf_put(resp, 2);
1537 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1538 wpabuf_put_u8(resp, srv_trans_id);
1539
1540 /* Status Code */
1541 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1542 wpa_hexdump_ascii(MSG_DEBUG, "P2P: Matching Bonjour service",
1543 wpabuf_head(bsrv->resp),
1544 wpabuf_len(bsrv->resp));
1545
1546 /* Response Data */
1547 wpabuf_put_data(resp, query, query_len); /* Key */
1548 wpabuf_put_buf(resp, bsrv->resp); /* Value */
1549
1550 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1551 }
1552
1553 if (matches == 0) {
b22128ef
JM		 1554 wpa_printf(MSG_DEBUG, "P2P: Requested Bonjour service not "
1555 "available");
560f8bda
JM		 1556 if (wpabuf_tailroom(resp) < 5)
1557 return;
1558
1559 /* Length (to be filled) */
1560 len_pos = wpabuf_put(resp, 2);
1561 wpabuf_put_u8(resp, P2P_SERV_BONJOUR);
1562 wpabuf_put_u8(resp, srv_trans_id);
b22128ef
JM		 1563
1564 /* Status Code */
bf608cad 1565 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1566 /* Response Data: empty */
1567 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1568 2);
b22128ef 1569 }
b22128ef
JM		 1570}
1571
1572
1573static void wpas_sd_all_upnp(struct wpa_supplicant *wpa_s,
1574 struct wpabuf *resp, u8 srv_trans_id)
1575{
1576 struct p2p_srv_upnp *usrv;
1577 u8 *len_pos;
1578
1579 wpa_printf(MSG_DEBUG, "P2P: SD Request for all UPnP services");
1580
1581 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1582 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1583 return;
1584 }
1585
1586 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1587 struct p2p_srv_upnp, list) {
1588 if (wpabuf_tailroom(resp) < 5 + 1 + os_strlen(usrv->service))
1589 return;
1590
1591 /* Length (to be filled) */
1592 len_pos = wpabuf_put(resp, 2);
1593 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1594 wpabuf_put_u8(resp, srv_trans_id);
1595
1596 /* Status Code */
1597 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1598 /* Response Data */
1599 wpabuf_put_u8(resp, usrv->version);
1600 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1601 usrv->service);
1602 wpabuf_put_str(resp, usrv->service);
1603 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos -
1604 2);
1605 }
1606}
1607
1608
1609static void wpas_sd_req_upnp(struct wpa_supplicant *wpa_s,
1610 struct wpabuf *resp, u8 srv_trans_id,
1611 const u8 *query, size_t query_len)
1612{
1613 struct p2p_srv_upnp *usrv;
1614 u8 *len_pos;
1615 u8 version;
1616 char *str;
1617 int count = 0;
1618
1619 wpa_hexdump_ascii(MSG_DEBUG, "P2P: SD Request for UPnP",
1620 query, query_len);
1621
1622 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp)) {
1623 wpa_printf(MSG_DEBUG, "P2P: UPnP protocol not available");
1624 wpas_sd_add_proto_not_avail(resp, P2P_SERV_UPNP,
1625 srv_trans_id);
1626 return;
1627 }
1628
1629 if (query_len == 0) {
1630 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1631 return;
1632 }
1633
b22128ef
JM		 1634 if (wpabuf_tailroom(resp) < 5)
1635 return;
1636
1637 /* Length (to be filled) */
1638 len_pos = wpabuf_put(resp, 2);
1639 wpabuf_put_u8(resp, P2P_SERV_UPNP);
1640 wpabuf_put_u8(resp, srv_trans_id);
1641
79222cfa
JM		 1642 version = query[0];
1643 str = os_malloc(query_len);
1644 if (str == NULL)
1645 return;
1646 os_memcpy(str, query + 1, query_len - 1);
1647 str[query_len - 1] = '\0';
1648
b22128ef
JM		 1649 dl_list_for_each(usrv, &wpa_s->global->p2p_srv_upnp,
1650 struct p2p_srv_upnp, list) {
1651 if (version != usrv->version)
1652 continue;
1653
1654 if (os_strcmp(str, "ssdp:all") != 0 &&
1655 os_strstr(usrv->service, str) == NULL)
1656 continue;
1657
1658 if (wpabuf_tailroom(resp) < 2)
1659 break;
1660 if (count == 0) {
1661 /* Status Code */
1662 wpabuf_put_u8(resp, P2P_SD_SUCCESS);
1663 /* Response Data */
1664 wpabuf_put_u8(resp, version);
1665 } else
1666 wpabuf_put_u8(resp, ',');
1667
1668 count++;
1669
1670 wpa_printf(MSG_DEBUG, "P2P: Matching UPnP Service: %s",
1671 usrv->service);
1672 if (wpabuf_tailroom(resp) < os_strlen(usrv->service))
1673 break;
1674 wpabuf_put_str(resp, usrv->service);
1675 }
714b8b53 1676 os_free(str);
b22128ef
JM		 1677
1678 if (count == 0) {
1679 wpa_printf(MSG_DEBUG, "P2P: Requested UPnP service not "
1680 "available");
1681 /* Status Code */
bf608cad 1682 wpabuf_put_u8(resp, P2P_SD_REQUESTED_INFO_NOT_AVAILABLE);
b22128ef
JM		 1683 /* Response Data: empty */
1684 }
1685
1686 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1687}
1688
1689
6ffdc2f7
JM		 1690#ifdef CONFIG_WIFI_DISPLAY
1691static void wpas_sd_req_wfd(struct wpa_supplicant *wpa_s,
1692 struct wpabuf *resp, u8 srv_trans_id,
1693 const u8 *query, size_t query_len)
1694{
1695 const u8 *pos;
1696 u8 role;
1697 u8 *len_pos;
1698
1699 wpa_hexdump(MSG_DEBUG, "P2P: SD Request for WFD", query, query_len);
1700
1701 if (!wpa_s->global->wifi_display) {
1702 wpa_printf(MSG_DEBUG, "P2P: WFD protocol not available");
1703 wpas_sd_add_proto_not_avail(resp, P2P_SERV_WIFI_DISPLAY,
1704 srv_trans_id);
1705 return;
1706 }
1707
1708 if (query_len < 1) {
1709 wpa_printf(MSG_DEBUG, "P2P: Missing WFD Requested Device "
1710 "Role");
1711 return;
1712 }
1713
1714 if (wpabuf_tailroom(resp) < 5)
1715 return;
1716
1717 pos = query;
1718 role = *pos++;
1719 wpa_printf(MSG_DEBUG, "P2P: WSD for device role 0x%x", role);
1720
1721 /* TODO: role specific handling */
1722
1723 /* Length (to be filled) */
1724 len_pos = wpabuf_put(resp, 2);
1725 wpabuf_put_u8(resp, P2P_SERV_WIFI_DISPLAY);
1726 wpabuf_put_u8(resp, srv_trans_id);
1727 wpabuf_put_u8(resp, P2P_SD_SUCCESS); /* Status Code */
1728
1729 while (pos < query + query_len) {
1730 if (*pos < MAX_WFD_SUBELEMS &&
1731 wpa_s->global->wfd_subelem[*pos] &&
1732 wpabuf_tailroom(resp) >=
1733 wpabuf_len(wpa_s->global->wfd_subelem[*pos])) {
1734 wpa_printf(MSG_DEBUG, "P2P: Add WSD response "
1735 "subelement %u", *pos);
1736 wpabuf_put_buf(resp, wpa_s->global->wfd_subelem[*pos]);
1737 }
1738 pos++;
1739 }
1740
1741 WPA_PUT_LE16(len_pos, (u8 *) wpabuf_put(resp, 0) - len_pos - 2);
1742}
1743#endif /* CONFIG_WIFI_DISPLAY */
1744
1745
b22128ef
JM		 1746void wpas_sd_request(void *ctx, int freq, const u8 *sa, u8 dialog_token,
1747 u16 update_indic, const u8 *tlvs, size_t tlvs_len)
1748{
1749 struct wpa_supplicant *wpa_s = ctx;
1750 const u8 *pos = tlvs;
1751 const u8 *end = tlvs + tlvs_len;
1752 const u8 *tlv_end;
1753 u16 slen;
1754 struct wpabuf *resp;
1755 u8 srv_proto, srv_trans_id;
1756 size_t buf_len;
1757 char *buf;
1758
1759 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Request TLVs",
1760 tlvs, tlvs_len);
1761 buf_len = 2 * tlvs_len + 1;
1762 buf = os_malloc(buf_len);
1763 if (buf) {
1764 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1765 wpa_msg_ctrl(wpa_s, MSG_INFO, P2P_EVENT_SERV_DISC_REQ "%d "
1766 MACSTR " %u %u %s",
1767 freq, MAC2STR(sa), dialog_token, update_indic,
1768 buf);
1769 os_free(buf);
1770 }
1771
3b655312 1772 if (wpa_s->p2p_sd_over_ctrl_iface) {
1773 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1774 update_indic, tlvs, tlvs_len);
b22128ef 1775 return; /* to be processed by an external program */
3b655312 1776 }
b22128ef
JM		 1777
1778 resp = wpabuf_alloc(10000);
1779 if (resp == NULL)
1780 return;
1781
1782 while (pos + 1 < end) {
1783 wpa_printf(MSG_DEBUG, "P2P: Service Request TLV");
1784 slen = WPA_GET_LE16(pos);
1785 pos += 2;
1786 if (pos + slen > end || slen < 2) {
1787 wpa_printf(MSG_DEBUG, "P2P: Unexpected Query Data "
1788 "length");
1789 wpabuf_free(resp);
1790 return;
1791 }
1792 tlv_end = pos + slen;
1793
1794 srv_proto = *pos++;
1795 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1796 srv_proto);
1797 srv_trans_id = *pos++;
1798 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1799 srv_trans_id);
1800
1801 wpa_hexdump(MSG_MSGDUMP, "P2P: Query Data",
1802 pos, tlv_end - pos);
1803
6e6963ea
JM		 1804
1805 if (wpa_s->force_long_sd) {
1806 wpa_printf(MSG_DEBUG, "P2P: SD test - force long "
1807 "response");
1808 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1809 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1810 goto done;
1811 }
1812
b22128ef
JM		 1813 switch (srv_proto) {
1814 case P2P_SERV_ALL_SERVICES:
1815 wpa_printf(MSG_DEBUG, "P2P: Service Discovery Request "
1816 "for all services");
1817 if (dl_list_empty(&wpa_s->global->p2p_srv_upnp) &&
1818 dl_list_empty(&wpa_s->global->p2p_srv_bonjour)) {
1819 wpa_printf(MSG_DEBUG, "P2P: No service "
1820 "discovery protocols available");
1821 wpas_sd_add_proto_not_avail(
1822 resp, P2P_SERV_ALL_SERVICES,
1823 srv_trans_id);
1824 break;
1825 }
1826 wpas_sd_all_bonjour(wpa_s, resp, srv_trans_id);
1827 wpas_sd_all_upnp(wpa_s, resp, srv_trans_id);
1828 break;
1829 case P2P_SERV_BONJOUR:
1830 wpas_sd_req_bonjour(wpa_s, resp, srv_trans_id,
1831 pos, tlv_end - pos);
1832 break;
1833 case P2P_SERV_UPNP:
1834 wpas_sd_req_upnp(wpa_s, resp, srv_trans_id,
1835 pos, tlv_end - pos);
1836 break;
6ffdc2f7
JM		 1837#ifdef CONFIG_WIFI_DISPLAY
1838 case P2P_SERV_WIFI_DISPLAY:
1839 wpas_sd_req_wfd(wpa_s, resp, srv_trans_id,
1840 pos, tlv_end - pos);
1841 break;
1842#endif /* CONFIG_WIFI_DISPLAY */
b22128ef
JM		 1843 default:
1844 wpa_printf(MSG_DEBUG, "P2P: Unavailable service "
1845 "protocol %u", srv_proto);
1846 wpas_sd_add_proto_not_avail(resp, srv_proto,
1847 srv_trans_id);
1848 break;
1849 }
1850
1851 pos = tlv_end;
1852 }
1853
6e6963ea 1854done:
e1653cac
KRK		 1855 wpas_notify_p2p_sd_request(wpa_s, freq, sa, dialog_token,
1856 update_indic, tlvs, tlvs_len);
1857
b22128ef
JM		 1858 wpas_p2p_sd_response(wpa_s, freq, sa, dialog_token, resp);
1859
1860 wpabuf_free(resp);
1861}
1862
1863
1864void wpas_sd_response(void *ctx, const u8 *sa, u16 update_indic,
1865 const u8 *tlvs, size_t tlvs_len)
1866{
1867 struct wpa_supplicant *wpa_s = ctx;
1868 const u8 *pos = tlvs;
1869 const u8 *end = tlvs + tlvs_len;
1870 const u8 *tlv_end;
1871 u16 slen;
1872 size_t buf_len;
1873 char *buf;
1874
1875 wpa_hexdump(MSG_MSGDUMP, "P2P: Service Discovery Response TLVs",
1876 tlvs, tlvs_len);
18708aad
JM		 1877 if (tlvs_len > 1500) {
1878 /* TODO: better way for handling this */
1879 wpa_msg_ctrl(wpa_s, MSG_INFO,
1880 P2P_EVENT_SERV_DISC_RESP MACSTR
1881 " %u <long response: %u bytes>",
1882 MAC2STR(sa), update_indic,
1883 (unsigned int) tlvs_len);
1884 } else {
1885 buf_len = 2 * tlvs_len + 1;
1886 buf = os_malloc(buf_len);
1887 if (buf) {
1888 wpa_snprintf_hex(buf, buf_len, tlvs, tlvs_len);
1889 wpa_msg_ctrl(wpa_s, MSG_INFO,
1890 P2P_EVENT_SERV_DISC_RESP MACSTR " %u %s",
1891 MAC2STR(sa), update_indic, buf);
1892 os_free(buf);
1893 }
b22128ef
JM		 1894 }
1895
1896 while (pos < end) {
1897 u8 srv_proto, srv_trans_id, status;
1898
1899 wpa_printf(MSG_DEBUG, "P2P: Service Response TLV");
1900 slen = WPA_GET_LE16(pos);
1901 pos += 2;
1902 if (pos + slen > end || slen < 3) {
1903 wpa_printf(MSG_DEBUG, "P2P: Unexpected Response Data "
1904 "length");
1905 return;
1906 }
1907 tlv_end = pos + slen;
1908
1909 srv_proto = *pos++;
1910 wpa_printf(MSG_DEBUG, "P2P: Service Protocol Type %u",
1911 srv_proto);
1912 srv_trans_id = *pos++;
1913 wpa_printf(MSG_DEBUG, "P2P: Service Transaction ID %u",
1914 srv_trans_id);
1915 status = *pos++;
1916 wpa_printf(MSG_DEBUG, "P2P: Status Code ID %u",
1917 status);
1918
1919 wpa_hexdump(MSG_MSGDUMP, "P2P: Response Data",
1920 pos, tlv_end - pos);
1921
1922 pos = tlv_end;
1923 }
43a26f60
KRK		 1924
1925 wpas_notify_p2p_sd_response(wpa_s, sa, update_indic, tlvs, tlvs_len);
b22128ef
JM		 1926}
1927
1928
7165c5dc
JM		 1929u64 wpas_p2p_sd_request(struct wpa_supplicant *wpa_s, const u8 *dst,
1930 const struct wpabuf *tlvs)
b22128ef 1931{
3ac17eba 1932 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
7165c5dc 1933 return wpa_drv_p2p_sd_request(wpa_s, dst, tlvs);
9526fd29 1934 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
7165c5dc
JM		 1935 return 0;
1936 return (uintptr_t) p2p_sd_request(wpa_s->global->p2p, dst, tlvs);
b22128ef
JM		 1937}
1938
1939
7165c5dc
JM		 1940u64 wpas_p2p_sd_request_upnp(struct wpa_supplicant *wpa_s, const u8 *dst,
1941 u8 version, const char *query)
b22128ef
JM		 1942{
1943 struct wpabuf *tlvs;
7165c5dc 1944 u64 ret;
b22128ef
JM		 1945
1946 tlvs = wpabuf_alloc(2 + 1 + 1 + 1 + os_strlen(query));
1947 if (tlvs == NULL)
7165c5dc 1948 return 0;
b22128ef
JM		 1949 wpabuf_put_le16(tlvs, 1 + 1 + 1 + os_strlen(query));
1950 wpabuf_put_u8(tlvs, P2P_SERV_UPNP); /* Service Protocol Type */
1951 wpabuf_put_u8(tlvs, 1); /* Service Transaction ID */
1952 wpabuf_put_u8(tlvs, version);
1953 wpabuf_put_str(tlvs, query);
1954 ret = wpas_p2p_sd_request(wpa_s, dst, tlvs);
1955 wpabuf_free(tlvs);
1956 return ret;
1957}
1958
1959
347d6a5b
JM		 1960#ifdef CONFIG_WIFI_DISPLAY
1961
1962static u64 wpas_p2p_sd_request_wfd(struct wpa_supplicant *wpa_s, const u8 *dst,
1963 const struct wpabuf *tlvs)
1964{
1965 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
1966 return 0;
1967 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
1968 return 0;
1969 return (uintptr_t) p2p_sd_request_wfd(wpa_s->global->p2p, dst, tlvs);
1970}
1971
1972
1973#define MAX_WFD_SD_SUBELEMS 20
1974
1975static void wfd_add_sd_req_role(struct wpabuf *tlvs, u8 id, u8 role,
1976 const char *subelems)
1977{
1978 u8 *len;
1979 const char *pos;
1980 int val;
1981 int count = 0;
1982
1983 len = wpabuf_put(tlvs, 2);
1984 wpabuf_put_u8(tlvs, P2P_SERV_WIFI_DISPLAY); /* Service Protocol Type */
1985 wpabuf_put_u8(tlvs, id); /* Service Transaction ID */
1986
1987 wpabuf_put_u8(tlvs, role);
1988
1989 pos = subelems;
1990 while (*pos) {
1991 val = atoi(pos);
1992 if (val >= 0 && val < 256) {
1993 wpabuf_put_u8(tlvs, val);
1994 count++;
1995 if (count == MAX_WFD_SD_SUBELEMS)
1996 break;
1997 }
1998 pos = os_strchr(pos + 1, ',');
1999 if (pos == NULL)
2000 break;
2001 pos++;
2002 }
2003
2004 WPA_PUT_LE16(len, (u8 *) wpabuf_put(tlvs, 0) - len - 2);
2005}
2006
2007
2008u64 wpas_p2p_sd_request_wifi_display(struct wpa_supplicant *wpa_s,
2009 const u8 *dst, const char *role)
2010{
2011 struct wpabuf *tlvs;
2012 u64 ret;
2013 const char *subelems;
2014 u8 id = 1;
2015
2016 subelems = os_strchr(role, ' ');
2017 if (subelems == NULL)
2018 return 0;
2019 subelems++;
2020
2021 tlvs = wpabuf_alloc(4 * (2 + 1 + 1 + 1 + MAX_WFD_SD_SUBELEMS));
2022 if (tlvs == NULL)
2023 return 0;
2024
2025 if (os_strstr(role, "[source]"))
2026 wfd_add_sd_req_role(tlvs, id++, 0x00, subelems);
2027 if (os_strstr(role, "[pri-sink]"))
2028 wfd_add_sd_req_role(tlvs, id++, 0x01, subelems);
2029 if (os_strstr(role, "[sec-sink]"))
2030 wfd_add_sd_req_role(tlvs, id++, 0x02, subelems);
2031 if (os_strstr(role, "[source+sink]"))
2032 wfd_add_sd_req_role(tlvs, id++, 0x03, subelems);
2033
2034 ret = wpas_p2p_sd_request_wfd(wpa_s, dst, tlvs);
2035 wpabuf_free(tlvs);
2036 return ret;
2037}
2038
2039#endif /* CONFIG_WIFI_DISPLAY */
2040
2041
7165c5dc 2042int wpas_p2p_sd_cancel_request(struct wpa_supplicant *wpa_s, u64 req)
b22128ef 2043{
3ac17eba 2044 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
7165c5dc 2045 return wpa_drv_p2p_sd_cancel_request(wpa_s, req);
9526fd29
JM		 2046 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2047 return -1;
7165c5dc
JM		 2048 return p2p_sd_cancel_request(wpa_s->global->p2p,
2049 (void *) (uintptr_t) req);
b22128ef
JM		 2050}
2051
2052
2053void wpas_p2p_sd_response(struct wpa_supplicant *wpa_s, int freq,
2054 const u8 *dst, u8 dialog_token,
2055 const struct wpabuf *resp_tlvs)
2056{
3ac17eba
JM		 2057 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2058 wpa_drv_p2p_sd_response(wpa_s, freq, dst, dialog_token,
2059 resp_tlvs);
2060 return;
2061 }
9526fd29
JM		 2062 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
2063 return;
b22128ef
JM		 2064 p2p_sd_response(wpa_s->global->p2p, freq, dst, dialog_token,
2065 resp_tlvs);
2066}
2067
2068
2069void wpas_p2p_sd_service_update(struct wpa_supplicant *wpa_s)
2070{
3ac17eba
JM		 2071 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2072 wpa_drv_p2p_service_update(wpa_s);
2073 return;
2074 }
9526fd29
JM		 2075 if (wpa_s->global->p2p)
2076 p2p_sd_service_update(wpa_s->global->p2p);
b22128ef
JM		 2077}
2078
2079
2080static void wpas_p2p_srv_bonjour_free(struct p2p_srv_bonjour *bsrv)
2081{
2082 dl_list_del(&bsrv->list);
2083 wpabuf_free(bsrv->query);
2084 wpabuf_free(bsrv->resp);
2085 os_free(bsrv);
2086}
2087
2088
2089static void wpas_p2p_srv_upnp_free(struct p2p_srv_upnp *usrv)
2090{
2091 dl_list_del(&usrv->list);
2092 os_free(usrv->service);
2093 os_free(usrv);
2094}
2095
2096
2097void wpas_p2p_service_flush(struct wpa_supplicant *wpa_s)
2098{
2099 struct p2p_srv_bonjour *bsrv, *bn;
2100 struct p2p_srv_upnp *usrv, *un;
2101
2102 dl_list_for_each_safe(bsrv, bn, &wpa_s->global->p2p_srv_bonjour,
2103 struct p2p_srv_bonjour, list)
2104 wpas_p2p_srv_bonjour_free(bsrv);
2105
2106 dl_list_for_each_safe(usrv, un, &wpa_s->global->p2p_srv_upnp,
2107 struct p2p_srv_upnp, list)
2108 wpas_p2p_srv_upnp_free(usrv);
2109
2110 wpas_p2p_sd_service_update(wpa_s);
2111}
2112
2113
2114int wpas_p2p_service_add_bonjour(struct wpa_supplicant *wpa_s,
2115 struct wpabuf *query, struct wpabuf *resp)
2116{
2117 struct p2p_srv_bonjour *bsrv;
2118
b22128ef
JM		 2119 bsrv = os_zalloc(sizeof(*bsrv));
2120 if (bsrv == NULL)
2121 return -1;
2122 bsrv->query = query;
2123 bsrv->resp = resp;
2124 dl_list_add(&wpa_s->global->p2p_srv_bonjour, &bsrv->list);
2125
2126 wpas_p2p_sd_service_update(wpa_s);
2127 return 0;
2128}
2129
2130
2131int wpas_p2p_service_del_bonjour(struct wpa_supplicant *wpa_s,
2132 const struct wpabuf *query)
2133{
2134 struct p2p_srv_bonjour *bsrv;
2135
2136 bsrv = wpas_p2p_service_get_bonjour(wpa_s, query);
2137 if (bsrv == NULL)
2138 return -1;
2139 wpas_p2p_srv_bonjour_free(bsrv);
2140 wpas_p2p_sd_service_update(wpa_s);
2141 return 0;
2142}
2143
2144
2145int wpas_p2p_service_add_upnp(struct wpa_supplicant *wpa_s, u8 version,
2146 const char *service)
2147{
2148 struct p2p_srv_upnp *usrv;
2149
2150 if (wpas_p2p_service_get_upnp(wpa_s, version, service))
2151 return 0; /* Already listed */
2152 usrv = os_zalloc(sizeof(*usrv));
2153 if (usrv == NULL)
2154 return -1;
2155 usrv->version = version;
2156 usrv->service = os_strdup(service);
2157 if (usrv->service == NULL) {
2158 os_free(usrv);
2159 return -1;
2160 }
2161 dl_list_add(&wpa_s->global->p2p_srv_upnp, &usrv->list);
2162
2163 wpas_p2p_sd_service_update(wpa_s);
2164 return 0;
2165}
2166
2167
2168int wpas_p2p_service_del_upnp(struct wpa_supplicant *wpa_s, u8 version,
2169 const char *service)
2170{
2171 struct p2p_srv_upnp *usrv;
2172
2173 usrv = wpas_p2p_service_get_upnp(wpa_s, version, service);
2174 if (usrv == NULL)
2175 return -1;
2176 wpas_p2p_srv_upnp_free(usrv);
2177 wpas_p2p_sd_service_update(wpa_s);
2178 return 0;
2179}
2180
2181
2182static void wpas_prov_disc_local_display(struct wpa_supplicant *wpa_s,
bbeee9b0
JB		 2183 const u8 *peer, const char *params,
2184 unsigned int generated_pin)
b22128ef
JM		 2185{
2186 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_SHOW_PIN MACSTR " %08d%s",
bbeee9b0 2187 MAC2STR(peer), generated_pin, params);
b22128ef
JM		 2188}
2189
2190
2191static void wpas_prov_disc_local_keypad(struct wpa_supplicant *wpa_s,
2192 const u8 *peer, const char *params)
2193{
2194 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_ENTER_PIN MACSTR "%s",
2195 MAC2STR(peer), params);
2196}
2197
2198
2199void wpas_prov_disc_req(void *ctx, const u8 *peer, u16 config_methods,
2200 const u8 *dev_addr, const u8 *pri_dev_type,
2201 const char *dev_name, u16 supp_config_methods,
c3f42784
JM		 2202 u8 dev_capab, u8 group_capab, const u8 *group_id,
2203 size_t group_id_len)
b22128ef
JM		 2204{
2205 struct wpa_supplicant *wpa_s = ctx;
2206 char devtype[WPS_DEV_TYPE_BUFSIZE];
c3f42784 2207 char params[300];
b22128ef 2208 u8 empty_dev_type[8];
bbeee9b0 2209 unsigned int generated_pin = 0;
c3f42784
JM		 2210 struct wpa_supplicant *group = NULL;
2211
2212 if (group_id) {
2213 for (group = wpa_s->global->ifaces; group; group = group->next)
2214 {
2215 struct wpa_ssid *s = group->current_ssid;
2216 if (s != NULL &&
2217 s->mode == WPAS_MODE_P2P_GO &&
2218 group_id_len - ETH_ALEN == s->ssid_len &&
2219 os_memcmp(group_id + ETH_ALEN, s->ssid,
2220 s->ssid_len) == 0)
2221 break;
2222 }
2223 }
b22128ef
JM		 2224
2225 if (pri_dev_type == NULL) {
2226 os_memset(empty_dev_type, 0, sizeof(empty_dev_type));
2227 pri_dev_type = empty_dev_type;
2228 }
2229 os_snprintf(params, sizeof(params), " p2p_dev_addr=" MACSTR
2230 " pri_dev_type=%s name='%s' config_methods=0x%x "
c3f42784 2231 "dev_capab=0x%x group_capab=0x%x%s%s",
b22128ef
JM		 2232 MAC2STR(dev_addr),
2233 wps_dev_type_bin2str(pri_dev_type, devtype,
2234 sizeof(devtype)),
c3f42784
JM		 2235 dev_name, supp_config_methods, dev_capab, group_capab,
2236 group ? " group=" : "",
2237 group ? group->ifname : "");
b22128ef
JM		 2238 params[sizeof(params) - 1] = '\0';
2239
bbeee9b0
JB		 2240 if (config_methods & WPS_CONFIG_DISPLAY) {
2241 generated_pin = wps_generate_pin();
2242 wpas_prov_disc_local_display(wpa_s, peer, params,
2243 generated_pin);
2244 } else if (config_methods & WPS_CONFIG_KEYPAD)
b22128ef
JM		 2245 wpas_prov_disc_local_keypad(wpa_s, peer, params);
2246 else if (config_methods & WPS_CONFIG_PUSHBUTTON)
2247 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_REQ MACSTR
2248 "%s", MAC2STR(peer), params);
dd8a7e05
JB		 2249
2250 wpas_notify_p2p_provision_discovery(wpa_s, peer, 1 /* request */,
2251 P2P_PROV_DISC_SUCCESS,
2252 config_methods, generated_pin);
b22128ef
JM		 2253}
2254
2255
2256void wpas_prov_disc_resp(void *ctx, const u8 *peer, u16 config_methods)
2257{
2258 struct wpa_supplicant *wpa_s = ctx;
bbeee9b0 2259 unsigned int generated_pin = 0;
0918c4bf 2260 char params[20];
bbeee9b0 2261
c1931635
JM		 2262 if (wpa_s->pending_pd_before_join &&
2263 (os_memcmp(peer, wpa_s->pending_join_dev_addr, ETH_ALEN) == 0 ||
2264 os_memcmp(peer, wpa_s->pending_join_iface_addr, ETH_ALEN) == 0)) {
2265 wpa_s->pending_pd_before_join = 0;
2266 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2267 "join-existing-group operation");
2268 wpas_p2p_join_start(wpa_s);
2269 return;
2270 }
2271
0918c4bf
JM		 2272 if (wpa_s->pending_pd_use == AUTO_PD_JOIN ||
2273 wpa_s->pending_pd_use == AUTO_PD_GO_NEG)
2274 os_snprintf(params, sizeof(params), " peer_go=%d",
2275 wpa_s->pending_pd_use == AUTO_PD_JOIN);
2276 else
2277 params[0] = '\0';
2278
b22128ef 2279 if (config_methods & WPS_CONFIG_DISPLAY)
0918c4bf 2280 wpas_prov_disc_local_keypad(wpa_s, peer, params);
bbeee9b0
JB		 2281 else if (config_methods & WPS_CONFIG_KEYPAD) {
2282 generated_pin = wps_generate_pin();
0918c4bf
JM		 2283 wpas_prov_disc_local_display(wpa_s, peer, params,
2284 generated_pin);
bbeee9b0 2285 } else if (config_methods & WPS_CONFIG_PUSHBUTTON)
0918c4bf
JM		 2286 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_PBC_RESP MACSTR
2287 "%s", MAC2STR(peer), params);
a482883f 2288
dd8a7e05
JB		 2289 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2290 P2P_PROV_DISC_SUCCESS,
2291 config_methods, generated_pin);
b22128ef
JM		 2292}
2293
2294
19df9b07
JM		 2295static void wpas_prov_disc_fail(void *ctx, const u8 *peer,
2296 enum p2p_prov_disc_status status)
dd8a7e05
JB		 2297{
2298 struct wpa_supplicant *wpa_s = ctx;
2299
aa9bb764
JM		 2300 if (wpa_s->p2p_fallback_to_go_neg) {
2301 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: PD for p2p_connect-auto "
2302 "failed - fall back to GO Negotiation");
2303 wpas_p2p_fallback_to_go_neg(wpa_s, 0);
2304 return;
2305 }
2306
175171ac
JM		 2307 if (status == P2P_PROV_DISC_TIMEOUT_JOIN) {
2308 wpa_s->pending_pd_before_join = 0;
2309 wpa_printf(MSG_DEBUG, "P2P: Starting pending "
2310 "join-existing-group operation (no ACK for PD "
2311 "Req attempts)");
2312 wpas_p2p_join_start(wpa_s);
2313 return;
2314 }
2315
f65a239b
DG		 2316 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
2317 " p2p_dev_addr=" MACSTR " status=%d",
25a94f52 2318 MAC2STR(peer), status);
f65a239b 2319
dd8a7e05
JB		 2320 wpas_notify_p2p_provision_discovery(wpa_s, peer, 0 /* response */,
2321 status, 0, 0);
2322}
2323
2324
b22128ef
JM		 2325static u8 wpas_invitation_process(void *ctx, const u8 *sa, const u8 *bssid,
2326 const u8 *go_dev_addr, const u8 *ssid,
2327 size_t ssid_len, int *go, u8 *group_bssid,
2328 int *force_freq, int persistent_group)
2329{
2330 struct wpa_supplicant *wpa_s = ctx;
2331 struct wpa_ssid *s;
2332 u8 cur_bssid[ETH_ALEN];
2333 int res;
ab72eb52 2334 struct wpa_supplicant *grp;
b22128ef
JM		 2335
2336 if (!persistent_group) {
2337 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2338 " to join an active group", MAC2STR(sa));
108def93 2339 if (!is_zero_ether_addr(wpa_s->p2p_auth_invite) &&
131cb37c
JM		 2340 (os_memcmp(go_dev_addr, wpa_s->p2p_auth_invite, ETH_ALEN)
2341 == 0 ||
2342 os_memcmp(sa, wpa_s->p2p_auth_invite, ETH_ALEN) == 0)) {
108def93
JM		 2343 wpa_printf(MSG_DEBUG, "P2P: Accept previously "
2344 "authorized invitation");
2345 goto accept_inv;
2346 }
b22128ef
JM		 2347 /*
2348 * Do not accept the invitation automatically; notify user and
2349 * request approval.
2350 */
2351 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2352 }
2353
ab72eb52
JM		 2354 grp = wpas_get_p2p_group(wpa_s, ssid, ssid_len, go);
2355 if (grp) {
2356 wpa_printf(MSG_DEBUG, "P2P: Accept invitation to already "
2357 "running persistent group");
2358 if (*go)
2359 os_memcpy(group_bssid, grp->own_addr, ETH_ALEN);
2360 goto accept_inv;
2361 }
2362
b22128ef
JM		 2363 if (!wpa_s->conf->persistent_reconnect)
2364 return P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
2365
2366 for (s = wpa_s->conf->ssid; s; s = s->next) {
2367 if (s->disabled == 2 &&
2368 os_memcmp(s->bssid, go_dev_addr, ETH_ALEN) == 0 &&
2369 s->ssid_len == ssid_len &&
2370 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2371 break;
2372 }
2373
2374 if (!s) {
2375 wpa_printf(MSG_DEBUG, "P2P: Invitation from " MACSTR
2376 " requested reinvocation of an unknown group",
2377 MAC2STR(sa));
2378 return P2P_SC_FAIL_UNKNOWN_GROUP;
2379 }
2380
2381 if (s->mode == WPAS_MODE_P2P_GO && !wpas_p2p_create_iface(wpa_s)) {
2382 *go = 1;
2383 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2384 wpa_printf(MSG_DEBUG, "P2P: The only available "
2385 "interface is already in use - reject "
2386 "invitation");
2387 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2388 }
2389 os_memcpy(group_bssid, wpa_s->own_addr, ETH_ALEN);
2390 } else if (s->mode == WPAS_MODE_P2P_GO) {
2391 *go = 1;
2392 if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO) < 0)
2393 {
2394 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
2395 "interface address for the group");
2396 return P2P_SC_FAIL_UNABLE_TO_ACCOMMODATE;
2397 }
2398 os_memcpy(group_bssid, wpa_s->pending_interface_addr,
2399 ETH_ALEN);
2400 }
2401
108def93 2402accept_inv:
b22128ef
JM		 2403 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, cur_bssid) == 0 &&
2404 wpa_s->assoc_freq) {
2405 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2406 "the channel we are already using");
2407 *force_freq = wpa_s->assoc_freq;
2408 }
2409
2410 res = wpa_drv_shared_freq(wpa_s);
2411 if (res > 0) {
2412 wpa_printf(MSG_DEBUG, "P2P: Trying to force channel to match "
2413 "with the channel we are already using on a "
2414 "shared interface");
2415 *force_freq = res;
2416 }
2417
2418 return P2P_SC_SUCCESS;
2419}
2420
2421
2422static void wpas_invitation_received(void *ctx, const u8 *sa, const u8 *bssid,
2423 const u8 *ssid, size_t ssid_len,
2424 const u8 *go_dev_addr, u8 status,
2425 int op_freq)
2426{
2427 struct wpa_supplicant *wpa_s = ctx;
2428 struct wpa_ssid *s;
2429
2430 for (s = wpa_s->conf->ssid; s; s = s->next) {
2431 if (s->disabled == 2 &&
2432 s->ssid_len == ssid_len &&
2433 os_memcmp(ssid, s->ssid, ssid_len) == 0)
2434 break;
2435 }
2436
2437 if (status == P2P_SC_SUCCESS) {
2438 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2439 " was accepted; op_freq=%d MHz",
2440 MAC2STR(sa), op_freq);
2441 if (s) {
2cd07584 2442 int go = s->mode == WPAS_MODE_P2P_GO;
b22128ef 2443 wpas_p2p_group_add_persistent(
2cd07584 2444 wpa_s, s, go, go ? op_freq : 0, 0);
2049af2b 2445 } else if (bssid) {
67527166 2446 wpa_s->user_initiated_pd = 0;
108def93 2447 wpas_p2p_join(wpa_s, bssid, go_dev_addr,
b31be3a0 2448 wpa_s->p2p_wps_method, 0);
b22128ef
JM		 2449 }
2450 return;
2451 }
2452
2453 if (status != P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
2454 wpa_printf(MSG_DEBUG, "P2P: Invitation from peer " MACSTR
2455 " was rejected (status %u)", MAC2STR(sa), status);
2456 return;
2457 }
2458
2459 if (!s) {
2460 if (bssid) {
2461 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2462 "sa=" MACSTR " go_dev_addr=" MACSTR
2463 " bssid=" MACSTR " unknown-network",
2464 MAC2STR(sa), MAC2STR(go_dev_addr),
2465 MAC2STR(bssid));
2466 } else {
2467 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED
2468 "sa=" MACSTR " go_dev_addr=" MACSTR
2469 " unknown-network",
2470 MAC2STR(sa), MAC2STR(go_dev_addr));
2471 }
2472 return;
2473 }
2474
2475 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RECEIVED "sa=" MACSTR
2476 " persistent=%d", MAC2STR(sa), s->id);
2477}
2478
2479
2480static void wpas_invitation_result(void *ctx, int status, const u8 *bssid)
2481{
2482 struct wpa_supplicant *wpa_s = ctx;
2483 struct wpa_ssid *ssid;
2484
2485 if (bssid) {
2486 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2487 "status=%d " MACSTR,
2488 status, MAC2STR(bssid));
2489 } else {
2490 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_INVITATION_RESULT
2491 "status=%d ", status);
2492 }
5ccdf84f 2493 wpas_notify_p2p_invitation_result(wpa_s, status, bssid);
b22128ef 2494
706887fc
JM		 2495 if (wpa_s->pending_invite_ssid_id == -1)
2496 return; /* Invitation to active group */
2497
b22128ef
JM		 2498 if (status != P2P_SC_SUCCESS) {
2499 wpas_p2p_remove_pending_group_interface(wpa_s);
2500 return;
2501 }
2502
2503 ssid = wpa_config_get_network(wpa_s->conf,
2504 wpa_s->pending_invite_ssid_id);
2505 if (ssid == NULL) {
2506 wpa_printf(MSG_ERROR, "P2P: Could not find persistent group "
2507 "data matching with invitation");
2508 return;
2509 }
2510
13ece96f
JM		 2511 /*
2512 * The peer could have missed our ctrl::ack frame for Invitation
2513 * Response and continue retransmitting the frame. To reduce the
2514 * likelihood of the peer not getting successful TX status for the
2515 * Invitation Response frame, wait a short time here before starting
2516 * the persistent group so that we will remain on the current channel to
2517 * acknowledge any possible retransmission from the peer.
2518 */
2519 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: 50 ms wait on current channel before "
2520 "starting persistent group");
2521 os_sleep(0, 50000);
2522
b22128ef 2523 wpas_p2p_group_add_persistent(wpa_s, ssid,
4d32c0c4
JM		 2524 ssid->mode == WPAS_MODE_P2P_GO,
2525 wpa_s->p2p_persistent_go_freq,
2526 wpa_s->p2p_go_ht40);
b22128ef
JM		 2527}
2528
2529
6f3bc72b
JM		 2530static int wpas_p2p_disallowed_freq(struct wpa_global *global,
2531 unsigned int freq)
2532{
2533 unsigned int i;
2534
2535 if (global->p2p_disallow_freq == NULL)
2536 return 0;
2537
2538 for (i = 0; i < global->num_p2p_disallow_freq; i++) {
2539 if (freq >= global->p2p_disallow_freq[i].min &&
2540 freq <= global->p2p_disallow_freq[i].max)
2541 return 1;
2542 }
2543
2544 return 0;
2545}
2546
2547
2548static void wpas_p2p_add_chan(struct p2p_reg_class *reg, u8 chan)
2549{
2550 reg->channel[reg->channels] = chan;
2551 reg->channels++;
2552}
2553
2554
ac8d1011
JM		 2555static int wpas_p2p_default_channels(struct wpa_supplicant *wpa_s,
2556 struct p2p_channels *chan)
2557{
2558 int i, cla = 0;
2559
2560 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for 2.4 GHz "
2561 "band");
2562
2563 /* Operating class 81 - 2.4 GHz band channels 1..13 */
2564 chan->reg_class[cla].reg_class = 81;
6f3bc72b
JM		 2565 chan->reg_class[cla].channels = 0;
2566 for (i = 0; i < 11; i++) {
2567 if (!wpas_p2p_disallowed_freq(wpa_s->global, 2412 + i * 5))
2568 wpas_p2p_add_chan(&chan->reg_class[cla], i + 1);
2569 }
2570 if (chan->reg_class[cla].channels)
2571 cla++;
ac8d1011
JM		 2572
2573 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for lower 5 GHz "
2574 "band");
2575
2576 /* Operating class 115 - 5 GHz, channels 36-48 */
2577 chan->reg_class[cla].reg_class = 115;
6f3bc72b
JM		 2578 chan->reg_class[cla].channels = 0;
2579 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 36 * 5))
2580 wpas_p2p_add_chan(&chan->reg_class[cla], 36);
2581 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 40 * 5))
2582 wpas_p2p_add_chan(&chan->reg_class[cla], 40);
2583 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 44 * 5))
2584 wpas_p2p_add_chan(&chan->reg_class[cla], 44);
2585 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 48 * 5))
2586 wpas_p2p_add_chan(&chan->reg_class[cla], 48);
2587 if (chan->reg_class[cla].channels)
2588 cla++;
ac8d1011
JM		 2589
2590 wpa_printf(MSG_DEBUG, "P2P: Enable operating classes for higher 5 GHz "
2591 "band");
2592
2593 /* Operating class 124 - 5 GHz, channels 149,153,157,161 */
2594 chan->reg_class[cla].reg_class = 124;
6f3bc72b
JM		 2595 chan->reg_class[cla].channels = 0;
2596 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 149 * 5))
2597 wpas_p2p_add_chan(&chan->reg_class[cla], 149);
2598 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 153 * 5))
2599 wpas_p2p_add_chan(&chan->reg_class[cla], 153);
2600 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 156 * 5))
2601 wpas_p2p_add_chan(&chan->reg_class[cla], 157);
2602 if (!wpas_p2p_disallowed_freq(wpa_s->global, 5000 + 161 * 5))
2603 wpas_p2p_add_chan(&chan->reg_class[cla], 161);
2604 if (chan->reg_class[cla].channels)
2605 cla++;
ac8d1011
JM		 2606
2607 chan->reg_classes = cla;
2608 return 0;
2609}
2610
2611
2612static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
2613 u16 num_modes,
2614 enum hostapd_hw_mode mode)
2615{
2616 u16 i;
2617
2618 for (i = 0; i < num_modes; i++) {
2619 if (modes[i].mode == mode)
2620 return &modes[i];
2621 }
2622
2623 return NULL;
2624}
2625
2626
6f3bc72b
JM		 2627static int has_channel(struct wpa_global *global,
2628 struct hostapd_hw_modes *mode, u8 chan, int *flags)
ac8d1011
JM		 2629{
2630 int i;
6f3bc72b
JM		 2631 unsigned int freq;
2632
2633 freq = (mode->mode == HOSTAPD_MODE_IEEE80211A ? 5000 : 2407) +
2634 chan * 5;
2635 if (wpas_p2p_disallowed_freq(global, freq))
2636 return 0;
ac8d1011
JM		 2637
2638 for (i = 0; i < mode->num_channels; i++) {
2639 if (mode->channels[i].chan == chan) {
51222429
JM		 2640 if (flags)
2641 *flags = mode->channels[i].flag;
ac8d1011
JM		 2642 return !(mode->channels[i].flag &
2643 (HOSTAPD_CHAN_DISABLED |
2644 HOSTAPD_CHAN_PASSIVE_SCAN |
2645 HOSTAPD_CHAN_NO_IBSS |
2646 HOSTAPD_CHAN_RADAR));
2647 }
2648 }
2649
2650 return 0;
2651}
2652
2653
2654struct p2p_oper_class_map {
2655 enum hostapd_hw_mode mode;
2656 u8 op_class;
2657 u8 min_chan;
2658 u8 max_chan;
2659 u8 inc;
51222429 2660 enum { BW20, BW40PLUS, BW40MINUS } bw;
ac8d1011
JM		 2661};
2662
931228aa
RM		 2663static struct p2p_oper_class_map op_class[] = {
2664 { HOSTAPD_MODE_IEEE80211G, 81, 1, 13, 1, BW20 },
931228aa
RM		 2665#if 0 /* Do not enable HT40 on 2 GHz for now */
2666 { HOSTAPD_MODE_IEEE80211G, 83, 1, 9, 1, BW40PLUS },
2667 { HOSTAPD_MODE_IEEE80211G, 84, 5, 13, 1, BW40MINUS },
2668#endif
2669 { HOSTAPD_MODE_IEEE80211A, 115, 36, 48, 4, BW20 },
2670 { HOSTAPD_MODE_IEEE80211A, 124, 149, 161, 4, BW20 },
2671 { HOSTAPD_MODE_IEEE80211A, 116, 36, 44, 8, BW40PLUS },
2672 { HOSTAPD_MODE_IEEE80211A, 117, 40, 48, 8, BW40MINUS },
2673 { HOSTAPD_MODE_IEEE80211A, 126, 149, 157, 8, BW40PLUS },
2674 { HOSTAPD_MODE_IEEE80211A, 127, 153, 161, 8, BW40MINUS },
2675 { -1, 0, 0, 0, 0, BW20 }
2676};
2677
2678
2679static int wpas_p2p_verify_channel(struct wpa_supplicant *wpa_s,
2680 struct hostapd_hw_modes *mode,
2681 u8 channel, u8 bw)
2682{
2683 int flag;
2684
2685 if (!has_channel(wpa_s->global, mode, channel, &flag))
2686 return -1;
2687 if (bw == BW40MINUS &&
2688 (!(flag & HOSTAPD_CHAN_HT40MINUS) ||
2689 !has_channel(wpa_s->global, mode, channel - 4, NULL)))
2690 return 0;
2691 if (bw == BW40PLUS &&
2692 (!(flag & HOSTAPD_CHAN_HT40PLUS) ||
2693 !has_channel(wpa_s->global, mode, channel + 4, NULL)))
2694 return 0;
2695 return 1;
2696}
2697
2698
b22128ef 2699static int wpas_p2p_setup_channels(struct wpa_supplicant *wpa_s,
ac8d1011 2700 struct p2p_channels *chan)
b22128ef 2701{
6bf731e8 2702 struct hostapd_hw_modes *mode;
ac8d1011 2703 int cla, op;
b22128ef 2704
6bf731e8 2705 if (wpa_s->hw.modes == NULL) {
b22128ef
JM		 2706 wpa_printf(MSG_DEBUG, "P2P: Driver did not support fetching "
2707 "of all supported channels; assume dualband "
2708 "support");
ac8d1011 2709 return wpas_p2p_default_channels(wpa_s, chan);
b22128ef
JM		 2710 }
2711
2712 cla = 0;
2713
ac8d1011
JM		 2714 for (op = 0; op_class[op].op_class; op++) {
2715 struct p2p_oper_class_map *o = &op_class[op];
2716 u8 ch;
2717 struct p2p_reg_class *reg = NULL;
b22128ef 2718
6bf731e8 2719 mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, o->mode);
ac8d1011
JM		 2720 if (mode == NULL)
2721 continue;
2722 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
931228aa 2723 if (wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw) < 1)
ac8d1011
JM		 2724 continue;
2725 if (reg == NULL) {
2726 wpa_printf(MSG_DEBUG, "P2P: Add operating "
2727 "class %u", o->op_class);
2728 reg = &chan->reg_class[cla];
2729 cla++;
2730 reg->reg_class = o->op_class;
2731 }
2732 reg->channel[reg->channels] = ch;
2733 reg->channels++;
2734 }
2735 if (reg) {
2736 wpa_hexdump(MSG_DEBUG, "P2P: Channels",
2737 reg->channel, reg->channels);
2738 }
b22128ef
JM		 2739 }
2740
ac8d1011 2741 chan->reg_classes = cla;
b22128ef 2742
b22128ef
JM		 2743 return 0;
2744}
2745
2746
7aeac985
RM		 2747int wpas_p2p_get_ht40_mode(struct wpa_supplicant *wpa_s,
2748 struct hostapd_hw_modes *mode, u8 channel)
2749{
2750 int op, ret;
2751
2752 for (op = 0; op_class[op].op_class; op++) {
2753 struct p2p_oper_class_map *o = &op_class[op];
2754 u8 ch;
2755
2756 for (ch = o->min_chan; ch <= o->max_chan; ch += o->inc) {
2757 if (o->mode != HOSTAPD_MODE_IEEE80211A ||
2758 o->bw == BW20 || ch != channel)
2759 continue;
2760 ret = wpas_p2p_verify_channel(wpa_s, mode, ch, o->bw);
2761 if (ret < 0)
2762 continue;
2763 else if (ret > 0)
2764 return (o->bw == BW40MINUS) ? -1 : 1;
2765 else
2766 return 0;
2767 }
2768 }
2769 return 0;
2770}
2771
2772
b22128ef
JM		 2773static int wpas_get_noa(void *ctx, const u8 *interface_addr, u8 *buf,
2774 size_t buf_len)
2775{
2776 struct wpa_supplicant *wpa_s = ctx;
2777
2778 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2779 if (os_memcmp(wpa_s->own_addr, interface_addr, ETH_ALEN) == 0)
2780 break;
2781 }
2782 if (wpa_s == NULL)
2783 return -1;
2784
2785 return wpa_drv_get_noa(wpa_s, buf, buf_len);
2786}
2787
2788
b1aebbc4
JM		 2789static int wpas_go_connected(void *ctx, const u8 *dev_addr)
2790{
2791 struct wpa_supplicant *wpa_s = ctx;
2792
2793 for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
2794 struct wpa_ssid *ssid = wpa_s->current_ssid;
2795 if (ssid == NULL)
2796 continue;
2797 if (ssid->mode != WPAS_MODE_INFRA)
2798 continue;
d9a0f666
PN		 2799 if (wpa_s->wpa_state != WPA_COMPLETED &&
2800 wpa_s->wpa_state != WPA_GROUP_HANDSHAKE)
b1aebbc4
JM		 2801 continue;
2802 if (os_memcmp(wpa_s->go_dev_addr, dev_addr, ETH_ALEN) == 0)
2803 return 1;
2804 }
2805
2806 return 0;
2807}
2808
2809
b22128ef
JM		 2810/**
2811 * wpas_p2p_init - Initialize P2P module for %wpa_supplicant
2812 * @global: Pointer to global data from wpa_supplicant_init()
2813 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2814 * Returns: 0 on success, -1 on failure
2815 */
2816int wpas_p2p_init(struct wpa_global *global, struct wpa_supplicant *wpa_s)
2817{
2818 struct p2p_config p2p;
2819 unsigned int r;
f95cac27 2820 int i;
b22128ef
JM		 2821
2822 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
2823 return 0;
2824
b22128ef
JM		 2825 if (global->p2p)
2826 return 0;
2827
3ac17eba
JM		 2828 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
2829 struct p2p_params params;
2830
2831 wpa_printf(MSG_DEBUG, "P2P: Use driver-based P2P management");
2832 os_memset(&params, 0, sizeof(params));
2833 params.dev_name = wpa_s->conf->device_name;
2f646b6e
JB		 2834 os_memcpy(params.pri_dev_type, wpa_s->conf->device_type,
2835 WPS_DEV_TYPE_LEN);
2836 params.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2837 os_memcpy(params.sec_dev_type,
2838 wpa_s->conf->sec_device_type,
2839 params.num_sec_dev_types * WPS_DEV_TYPE_LEN);
2840
3ac17eba
JM		 2841 if (wpa_drv_p2p_set_params(wpa_s, &params) < 0)
2842 return -1;
2843
2844 return 0;
2845 }
2846
b22128ef
JM		 2847 os_memset(&p2p, 0, sizeof(p2p));
2848 p2p.msg_ctx = wpa_s;
2849 p2p.cb_ctx = wpa_s;
2850 p2p.p2p_scan = wpas_p2p_scan;
2851 p2p.send_action = wpas_send_action;
2852 p2p.send_action_done = wpas_send_action_done;
2853 p2p.go_neg_completed = wpas_go_neg_completed;
2854 p2p.go_neg_req_rx = wpas_go_neg_req_rx;
2855 p2p.dev_found = wpas_dev_found;
56eeb8f2 2856 p2p.dev_lost = wpas_dev_lost;
b22128ef
JM		 2857 p2p.start_listen = wpas_start_listen;
2858 p2p.stop_listen = wpas_stop_listen;
2859 p2p.send_probe_resp = wpas_send_probe_resp;
2860 p2p.sd_request = wpas_sd_request;
2861 p2p.sd_response = wpas_sd_response;
2862 p2p.prov_disc_req = wpas_prov_disc_req;
2863 p2p.prov_disc_resp = wpas_prov_disc_resp;
dd8a7e05 2864 p2p.prov_disc_fail = wpas_prov_disc_fail;
b22128ef
JM		 2865 p2p.invitation_process = wpas_invitation_process;
2866 p2p.invitation_received = wpas_invitation_received;
2867 p2p.invitation_result = wpas_invitation_result;
2868 p2p.get_noa = wpas_get_noa;
b1aebbc4 2869 p2p.go_connected = wpas_go_connected;
b22128ef
JM		 2870
2871 os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
d7e70476 2872 os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
b22128ef 2873 p2p.dev_name = wpa_s->conf->device_name;
b6e01800
JM		 2874 p2p.manufacturer = wpa_s->conf->manufacturer;
2875 p2p.model_name = wpa_s->conf->model_name;
2876 p2p.model_number = wpa_s->conf->model_number;
2877 p2p.serial_number = wpa_s->conf->serial_number;
2878 if (wpa_s->wps) {
2879 os_memcpy(p2p.uuid, wpa_s->wps->uuid, 16);
2880 p2p.config_methods = wpa_s->wps->config_methods;
2881 }
b22128ef
JM		 2882
2883 if (wpa_s->conf->p2p_listen_reg_class &&
2884 wpa_s->conf->p2p_listen_channel) {
2885 p2p.reg_class = wpa_s->conf->p2p_listen_reg_class;
2886 p2p.channel = wpa_s->conf->p2p_listen_channel;
2887 } else {
2888 p2p.reg_class = 81;
2889 /*
2890 * Pick one of the social channels randomly as the listen
2891 * channel.
2892 */
2893 os_get_random((u8 *) &r, sizeof(r));
2894 p2p.channel = 1 + (r % 3) * 5;
2895 }
7cfc4ac3 2896 wpa_printf(MSG_DEBUG, "P2P: Own listen channel: %d", p2p.channel);
b22128ef
JM		 2897
2898 if (wpa_s->conf->p2p_oper_reg_class &&
2899 wpa_s->conf->p2p_oper_channel) {
2900 p2p.op_reg_class = wpa_s->conf->p2p_oper_reg_class;
2901 p2p.op_channel = wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 2902 p2p.cfg_op_channel = 1;
2903 wpa_printf(MSG_DEBUG, "P2P: Configured operating channel: "
2904 "%d:%d", p2p.op_reg_class, p2p.op_channel);
2905
b22128ef
JM		 2906 } else {
2907 p2p.op_reg_class = 81;
2908 /*
7cfc4ac3
AGS		 2909 * Use random operation channel from (1, 6, 11) if no other
2910 * preference is indicated.
b22128ef 2911 */
b7412dab 2912 os_get_random((u8 *) &r, sizeof(r));
7cfc4ac3
AGS		 2913 p2p.op_channel = 1 + (r % 3) * 5;
2914 p2p.cfg_op_channel = 0;
2915 wpa_printf(MSG_DEBUG, "P2P: Random operating channel: "
2916 "%d:%d", p2p.op_reg_class, p2p.op_channel);
b22128ef 2917 }
b22128ef
JM		 2918 if (wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
2919 os_memcpy(p2p.country, wpa_s->conf->country, 2);
2920 p2p.country[2] = 0x04;
2921 } else
aaca6505 2922 os_memcpy(p2p.country, "XX\x04", 3);
b22128ef 2923
ac8d1011 2924 if (wpas_p2p_setup_channels(wpa_s, &p2p.channels)) {
b22128ef
JM		 2925 wpa_printf(MSG_ERROR, "P2P: Failed to configure supported "
2926 "channel list");
2927 return -1;
2928 }
2929
2f646b6e
JB		 2930 os_memcpy(p2p.pri_dev_type, wpa_s->conf->device_type,
2931 WPS_DEV_TYPE_LEN);
b22128ef 2932
2f646b6e
JB		 2933 p2p.num_sec_dev_types = wpa_s->conf->num_sec_device_types;
2934 os_memcpy(p2p.sec_dev_type, wpa_s->conf->sec_device_type,
2935 p2p.num_sec_dev_types * WPS_DEV_TYPE_LEN);
b22128ef
JM		 2936
2937 p2p.concurrent_operations = !!(wpa_s->drv_flags &
2938 WPA_DRIVER_FLAGS_P2P_CONCURRENT);
2939
de979d8f 2940 p2p.max_peers = 100;
b22128ef
JM		 2941
2942 if (wpa_s->conf->p2p_ssid_postfix) {
2943 p2p.ssid_postfix_len =
2944 os_strlen(wpa_s->conf->p2p_ssid_postfix);
2945 if (p2p.ssid_postfix_len > sizeof(p2p.ssid_postfix))
2946 p2p.ssid_postfix_len = sizeof(p2p.ssid_postfix);
2947 os_memcpy(p2p.ssid_postfix, wpa_s->conf->p2p_ssid_postfix,
2948 p2p.ssid_postfix_len);
2949 }
2950
0f66abd2
SS		 2951 p2p.p2p_intra_bss = wpa_s->conf->p2p_intra_bss;
2952
96beff11
JM		 2953 p2p.max_listen = wpa_s->max_remain_on_chan;
2954
b22128ef
JM		 2955 global->p2p = p2p_init(&p2p);
2956 if (global->p2p == NULL)
2957 return -1;
ab28911d 2958 global->p2p_init_wpa_s = wpa_s;
b22128ef 2959
f95cac27
JMB		 2960 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
2961 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
2962 continue;
2963 p2p_add_wps_vendor_extension(
2964 global->p2p, wpa_s->conf->wps_vendor_ext[i]);
2965 }
2966
b22128ef
JM		 2967 return 0;
2968}
2969
2970
2971/**
2972 * wpas_p2p_deinit - Deinitialize per-interface P2P data
2973 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
2974 *
2975 * This function deinitialize per-interface P2P data.
2976 */
2977void wpas_p2p_deinit(struct wpa_supplicant *wpa_s)
2978{
2979 if (wpa_s->driver && wpa_s->drv_priv)
2980 wpa_drv_probe_req_report(wpa_s, 0);
ec437d9e
JJ		 2981
2982 if (wpa_s->go_params) {
2983 /* Clear any stored provisioning info */
2984 p2p_clear_provisioning_info(
2985 wpa_s->global->p2p,
10531d21 2986 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 2987 }
2988
b22128ef
JM		 2989 os_free(wpa_s->go_params);
2990 wpa_s->go_params = NULL;
b22128ef 2991 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
ef922c4a 2992 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef
JM		 2993 wpa_s->p2p_long_listen = 0;
2994 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
3071e181 2995 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
b22128ef
JM		 2996 wpas_p2p_remove_pending_group_interface(wpa_s);
2997
2998 /* TODO: remove group interface from the driver if this wpa_s instance
2999 * is on top of a P2P group interface */
3000}
3001
3002
3003/**
3004 * wpas_p2p_deinit_global - Deinitialize global P2P module
3005 * @global: Pointer to global data from wpa_supplicant_init()
3006 *
3007 * This function deinitializes the global (per device) P2P module.
3008 */
3009void wpas_p2p_deinit_global(struct wpa_global *global)
3010{
3011 struct wpa_supplicant *wpa_s, *tmp;
b22128ef 3012
bf428a73
JM		 3013 wpa_s = global->ifaces;
3014 if (wpa_s)
3015 wpas_p2p_service_flush(wpa_s);
3016
b22128ef
JM		 3017 if (global->p2p == NULL)
3018 return;
3019
3020 /* Remove remaining P2P group interfaces */
b22128ef
JM		 3021 while (wpa_s && wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
3022 wpa_s = wpa_s->next;
3023 while (wpa_s) {
b22128ef
JM		 3024 tmp = global->ifaces;
3025 while (tmp &&
3026 (tmp == wpa_s ||
3027 tmp->p2p_group_interface == NOT_P2P_GROUP_INTERFACE)) {
3028 tmp = tmp->next;
3029 }
3030 if (tmp == NULL)
3031 break;
103b8f4d
NS		 3032 /* Disconnect from the P2P group and deinit the interface */
3033 wpas_p2p_disconnect(tmp);
b22128ef
JM		 3034 }
3035
743ef799
JM		 3036 /*
3037 * Deinit GO data on any possibly remaining interface (if main
3038 * interface is used as GO).
3039 */
3040 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3041 if (wpa_s->ap_iface)
3042 wpas_p2p_group_deinit(wpa_s);
3043 }
3044
b22128ef
JM		 3045 p2p_deinit(global->p2p);
3046 global->p2p = NULL;
ab28911d 3047 global->p2p_init_wpa_s = NULL;
b22128ef
JM		 3048}
3049
3050
3051static int wpas_p2p_create_iface(struct wpa_supplicant *wpa_s)
3052{
d76cd41a
JM		 3053 if (wpa_s->conf->p2p_no_group_iface)
3054 return 0; /* separate interface disabled per configuration */
971e357f
JM		 3055 if (wpa_s->drv_flags &
3056 (WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE |
3057 WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P))
b22128ef
JM		 3058 return 1; /* P2P group requires a new interface in every case
3059 */
3060 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CONCURRENT))
3061 return 0; /* driver does not support concurrent operations */
3062 if (wpa_s->global->ifaces->next)
3063 return 1; /* more that one interface already in use */
3064 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
3065 return 1; /* this interface is already in use */
3066 return 0;
3067}
3068
3069
3070static int wpas_p2p_start_go_neg(struct wpa_supplicant *wpa_s,
3071 const u8 *peer_addr,
3072 enum p2p_wps_method wps_method,
3073 int go_intent, const u8 *own_interface_addr,
23c84252 3074 unsigned int force_freq, int persistent_group,
04a3e69d 3075 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 3076{
acc247b2
JM		 3077 if (persistent_group && wpa_s->conf->persistent_reconnect)
3078 persistent_group = 2;
3079
3ac17eba
JM		 3080 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
3081 return wpa_drv_p2p_connect(wpa_s, peer_addr, wps_method,
3082 go_intent, own_interface_addr,
3083 force_freq, persistent_group);
3084 }
3085
4f219667
JM		 3086 /*
3087 * Increase GO config timeout if HT40 is used since it takes some time
3088 * to scan channels for coex purposes before the BSS can be started.
3089 */
3090 p2p_set_config_timeout(wpa_s->global->p2p,
3091 wpa_s->p2p_go_ht40 ? 255 : 100, 20);
3092
b22128ef
JM		 3093 return p2p_connect(wpa_s->global->p2p, peer_addr, wps_method,
3094 go_intent, own_interface_addr, force_freq,
23c84252 3095 persistent_group, ssid ? ssid->ssid : NULL,
3bc462cb 3096 ssid ? ssid->ssid_len : 0,
04a3e69d 3097 wpa_s->p2p_pd_before_go_neg, pref_freq);
b22128ef
JM		 3098}
3099
3100
3101static int wpas_p2p_auth_go_neg(struct wpa_supplicant *wpa_s,
3102 const u8 *peer_addr,
3103 enum p2p_wps_method wps_method,
3104 int go_intent, const u8 *own_interface_addr,
23c84252 3105 unsigned int force_freq, int persistent_group,
04a3e69d 3106 struct wpa_ssid *ssid, unsigned int pref_freq)
b22128ef 3107{
acc247b2
JM		 3108 if (persistent_group && wpa_s->conf->persistent_reconnect)
3109 persistent_group = 2;
3110
3ac17eba
JM		 3111 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3112 return -1;
3113
b22128ef
JM		 3114 return p2p_authorize(wpa_s->global->p2p, peer_addr, wps_method,
3115 go_intent, own_interface_addr, force_freq,
23c84252 3116 persistent_group, ssid ? ssid->ssid : NULL,
04a3e69d 3117 ssid ? ssid->ssid_len : 0, pref_freq);
b22128ef
JM		 3118}
3119
3120
9b1ab931
JM		 3121static void wpas_p2p_check_join_scan_limit(struct wpa_supplicant *wpa_s)
3122{
3123 wpa_s->p2p_join_scan_count++;
3124 wpa_printf(MSG_DEBUG, "P2P: Join scan attempt %d",
3125 wpa_s->p2p_join_scan_count);
3126 if (wpa_s->p2p_join_scan_count > P2P_MAX_JOIN_SCAN_ATTEMPTS) {
3127 wpa_printf(MSG_DEBUG, "P2P: Failed to find GO " MACSTR
3128 " for join operationg - stop join attempt",
3129 MAC2STR(wpa_s->pending_join_iface_addr));
3130 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
0918c4bf
JM		 3131 if (wpa_s->p2p_auto_pd) {
3132 wpa_s->p2p_auto_pd = 0;
3133 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3134 " p2p_dev_addr=" MACSTR " status=N/A",
3135 MAC2STR(wpa_s->pending_join_dev_addr));
3136 return;
3137 }
9b1ab931
JM		 3138 wpa_msg(wpa_s->parent, MSG_INFO,
3139 P2P_EVENT_GROUP_FORMATION_FAILURE);
3140 }
3141}
3142
3143
4b156206
JM		 3144static int wpas_check_freq_conflict(struct wpa_supplicant *wpa_s, int freq)
3145{
3146 struct wpa_supplicant *iface;
3147 int shared_freq;
3148 u8 bssid[ETH_ALEN];
3149
3150 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)
3151 return 0;
3152
3153 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
3154 if (!wpas_p2p_create_iface(wpa_s) && iface == wpa_s)
3155 continue;
3156 if (iface->current_ssid == NULL || iface->assoc_freq == 0)
3157 continue;
86ae2e8a
JM		 3158 if (iface->current_ssid->mode == WPAS_MODE_AP ||
3159 iface->current_ssid->mode == WPAS_MODE_P2P_GO)
3160 shared_freq = iface->current_ssid->frequency;
3161 else if (wpa_drv_get_bssid(iface, bssid) == 0)
3162 shared_freq = iface->assoc_freq;
3163 else
3164 shared_freq = 0;
3165
3166 if (shared_freq && freq != shared_freq) {
3167 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - %s "
3168 "connected on %d MHz - new connection on "
3169 "%d MHz", iface->ifname, shared_freq, freq);
3170 return 1;
4b156206
JM		 3171 }
3172 }
3173
3174 shared_freq = wpa_drv_shared_freq(wpa_s);
3175 if (shared_freq > 0 && shared_freq != freq) {
3176 wpa_printf(MSG_DEBUG, "P2P: Frequency conflict - shared "
3177 "virtual interface connected on %d MHz - new "
3178 "connection on %d MHz", shared_freq, freq);
3179 return 1;
3180 }
3181
3182 return 0;
3183}
3184
3185
b31be3a0
JM		 3186static int wpas_p2p_peer_go(struct wpa_supplicant *wpa_s,
3187 const u8 *peer_dev_addr)
3188{
3189 struct wpa_bss *bss;
3190 int updated;
3191
3192 bss = wpa_bss_get_p2p_dev_addr(wpa_s, peer_dev_addr);
3193 if (bss == NULL)
aa9bb764 3194 return -1;
b31be3a0
JM		 3195 if (bss->last_update_idx < wpa_s->bss_update_idx) {
3196 wpa_printf(MSG_DEBUG, "P2P: Peer BSS entry not updated in the "
3197 "last scan");
3198 return 0;
3199 }
3200
3201 updated = os_time_before(&wpa_s->p2p_auto_started, &bss->last_update);
3202 wpa_printf(MSG_DEBUG, "P2P: Current BSS entry for peer updated at "
3203 "%ld.%06ld (%supdated in last scan)",
3204 bss->last_update.sec, bss->last_update.usec,
3205 updated ? "": "not ");
3206
3207 return updated;
3208}
3209
3210
ef922c4a
JM		 3211static void wpas_p2p_scan_res_join(struct wpa_supplicant *wpa_s,
3212 struct wpa_scan_results *scan_res)
b22128ef
JM		 3213{
3214 struct wpa_bss *bss;
f8d0131a 3215 int freq;
54960629 3216 u8 iface_addr[ETH_ALEN];
b22128ef 3217
ef922c4a 3218 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
b22128ef 3219
ef922c4a
JM		 3220 if (wpa_s->global->p2p_disabled)
3221 return;
b22128ef 3222
b31be3a0
JM		 3223 wpa_printf(MSG_DEBUG, "P2P: Scan results received (%d BSS) for %sjoin",
3224 scan_res ? (int) scan_res->num : -1,
3225 wpa_s->p2p_auto_join ? "auto_" : "");
ef922c4a
JM		 3226
3227 if (scan_res)
3228 wpas_p2p_scan_res_handler(wpa_s, scan_res);
b22128ef 3229
0918c4bf
JM		 3230 if (wpa_s->p2p_auto_pd) {
3231 int join = wpas_p2p_peer_go(wpa_s,
3232 wpa_s->pending_join_dev_addr);
84286a22
SDU		 3233 if (join == 0 &&
3234 wpa_s->auto_pd_scan_retry < P2P_AUTO_PD_SCAN_ATTEMPTS) {
3235 wpa_s->auto_pd_scan_retry++;
3236 bss = wpa_bss_get_bssid(wpa_s,
3237 wpa_s->pending_join_dev_addr);
3238 if (bss) {
3239 freq = bss->freq;
3240 wpa_printf(MSG_DEBUG, "P2P: Scan retry %d for "
3241 "the peer " MACSTR " at %d MHz",
3242 wpa_s->auto_pd_scan_retry,
3243 MAC2STR(wpa_s->
3244 pending_join_dev_addr),
3245 freq);
3246 wpas_p2p_join_scan_req(wpa_s, freq);
3247 return;
3248 }
3249 }
3250
aa9bb764
JM		 3251 if (join < 0)
3252 join = 0;
84286a22 3253
0918c4bf
JM		 3254 wpa_s->p2p_auto_pd = 0;
3255 wpa_s->pending_pd_use = join ? AUTO_PD_JOIN : AUTO_PD_GO_NEG;
3256 wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
3257 MAC2STR(wpa_s->pending_join_dev_addr), join);
3258 if (p2p_prov_disc_req(wpa_s->global->p2p,
3259 wpa_s->pending_join_dev_addr,
3260 wpa_s->pending_pd_config_methods, join,
67527166 3261 0, wpa_s->user_initiated_pd) < 0) {
0918c4bf
JM		 3262 wpa_s->p2p_auto_pd = 0;
3263 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_PROV_DISC_FAILURE
3264 " p2p_dev_addr=" MACSTR " status=N/A",
3265 MAC2STR(wpa_s->pending_join_dev_addr));
3266 }
3267 return;
3268 }
3269
b31be3a0 3270 if (wpa_s->p2p_auto_join) {
aa9bb764
JM		 3271 int join = wpas_p2p_peer_go(wpa_s,
3272 wpa_s->pending_join_dev_addr);
3273 if (join < 0) {
b31be3a0
JM		 3274 wpa_printf(MSG_DEBUG, "P2P: Peer was not found to be "
3275 "running a GO -> use GO Negotiation");
3276 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr,
3277 wpa_s->p2p_pin, wpa_s->p2p_wps_method,
3278 wpa_s->p2p_persistent_group, 0, 0, 0,
3279 wpa_s->p2p_go_intent,
23c84252 3280 wpa_s->p2p_connect_freq,
3bc462cb 3281 wpa_s->p2p_persistent_id,
e2308e4b
RM		 3282 wpa_s->p2p_pd_before_go_neg,
3283 wpa_s->p2p_go_ht40);
b31be3a0
JM		 3284 return;
3285 }
3286
aa9bb764
JM		 3287 wpa_printf(MSG_DEBUG, "P2P: Peer was found running GO%s -> "
3288 "try to join the group", join ? "" :
3289 " in older scan");
3290 if (!join)
3291 wpa_s->p2p_fallback_to_go_neg = 1;
b31be3a0
JM		 3292 }
3293
f8d0131a
JM		 3294 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3295 wpa_s->pending_join_iface_addr);
54960629
AL		 3296 if (freq < 0 &&
3297 p2p_get_interface_addr(wpa_s->global->p2p,
3298 wpa_s->pending_join_dev_addr,
3299 iface_addr) == 0 &&
3300 os_memcmp(iface_addr, wpa_s->pending_join_dev_addr, ETH_ALEN) != 0)
3301 {
3302 wpa_printf(MSG_DEBUG, "P2P: Overwrite pending interface "
3303 "address for join from " MACSTR " to " MACSTR
3304 " based on newly discovered P2P peer entry",
3305 MAC2STR(wpa_s->pending_join_iface_addr),
3306 MAC2STR(iface_addr));
3307 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr,
3308 ETH_ALEN);
3309
3310 freq = p2p_get_oper_freq(wpa_s->global->p2p,
3311 wpa_s->pending_join_iface_addr);
3312 }
f8d0131a
JM		 3313 if (freq >= 0) {
3314 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3315 "from P2P peer table: %d MHz", freq);
3316 }
ef922c4a 3317 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
b22128ef 3318 if (bss) {
f8d0131a
JM		 3319 freq = bss->freq;
3320 wpa_printf(MSG_DEBUG, "P2P: Target GO operating frequency "
3321 "from BSS table: %d MHz", freq);
3322 }
3323 if (freq > 0) {
b22128ef
JM		 3324 u16 method;
3325
4b156206
JM		 3326 if (wpas_check_freq_conflict(wpa_s, freq) > 0) {
3327 wpa_msg(wpa_s->parent, MSG_INFO,
3328 P2P_EVENT_GROUP_FORMATION_FAILURE
3329 "reason=FREQ_CONFLICT");
3330 return;
3331 }
3332
b22128ef
JM		 3333 wpa_printf(MSG_DEBUG, "P2P: Send Provision Discovery Request "
3334 "prior to joining an existing group (GO " MACSTR
3335 " freq=%u MHz)",
f8d0131a 3336 MAC2STR(wpa_s->pending_join_dev_addr), freq);
b22128ef
JM		 3337 wpa_s->pending_pd_before_join = 1;
3338
ef922c4a 3339 switch (wpa_s->pending_join_wps_method) {
b22128ef
JM		 3340 case WPS_PIN_DISPLAY:
3341 method = WPS_CONFIG_KEYPAD;
3342 break;
3343 case WPS_PIN_KEYPAD:
3344 method = WPS_CONFIG_DISPLAY;
3345 break;
3346 case WPS_PBC:
3347 method = WPS_CONFIG_PUSHBUTTON;
3348 break;
3349 default:
3350 method = 0;
3351 break;
3352 }
3353
ec437d9e
JJ		 3354 if ((p2p_get_provisioning_info(wpa_s->global->p2p,
3355 wpa_s->pending_join_dev_addr) ==
3356 method)) {
3357 /*
3358 * We have already performed provision discovery for
3359 * joining the group. Proceed directly to join
3360 * operation without duplicated provision discovery. */
e3a0706b 3361 wpa_printf(MSG_DEBUG, "P2P: Provision discovery "
ec437d9e
JJ		 3362 "with " MACSTR " already done - proceed to "
3363 "join",
3364 MAC2STR(wpa_s->pending_join_dev_addr));
3365 wpa_s->pending_pd_before_join = 0;
3366 goto start;
3367 }
3368
ef922c4a 3369 if (p2p_prov_disc_req(wpa_s->global->p2p,
1ef2f7ff 3370 wpa_s->pending_join_dev_addr, method, 1,
67527166 3371 freq, wpa_s->user_initiated_pd) < 0) {
b22128ef
JM		 3372 wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
3373 "Discovery Request before joining an "
3374 "existing group");
3375 wpa_s->pending_pd_before_join = 0;
3376 goto start;
3377 }
ef922c4a 3378 return;
b22128ef
JM		 3379 }
3380
9b1ab931
JM		 3381 wpa_printf(MSG_DEBUG, "P2P: Failed to find BSS/GO - try again later");
3382 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3383 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
3384 wpas_p2p_check_join_scan_limit(wpa_s);
3385 return;
b22128ef
JM		 3386
3387start:
3388 /* Start join operation immediately */
ef922c4a
JM		 3389 wpas_p2p_join_start(wpa_s);
3390}
3391
3392
84286a22 3393static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq)
ef922c4a 3394{
ef922c4a
JM		 3395 int ret;
3396 struct wpa_driver_scan_params params;
3397 struct wpabuf *wps_ie, *ies;
206e1f42 3398 size_t ielen;
84286a22 3399 int freqs[2] = { 0, 0 };
ef922c4a
JM		 3400
3401 os_memset(&params, 0, sizeof(params));
3402
3403 /* P2P Wildcard SSID */
3404 params.num_ssids = 1;
3405 params.ssids[0].ssid = (u8 *) P2P_WILDCARD_SSID;
3406 params.ssids[0].ssid_len = P2P_WILDCARD_SSID_LEN;
3407
3408 wpa_s->wps->dev.p2p = 1;
360182ed
JM		 3409 wps_ie = wps_build_probe_req_ie(DEV_PW_DEFAULT, &wpa_s->wps->dev,
3410 wpa_s->wps->uuid, WPS_REQ_ENROLLEE, 0,
3411 NULL);
ef922c4a
JM		 3412 if (wps_ie == NULL) {
3413 wpas_p2p_scan_res_join(wpa_s, NULL);
3414 return;
3415 }
3416
206e1f42
JM		 3417 ielen = p2p_scan_ie_buf_len(wpa_s->global->p2p);
3418 ies = wpabuf_alloc(wpabuf_len(wps_ie) + ielen);
ef922c4a
JM		 3419 if (ies == NULL) {
3420 wpabuf_free(wps_ie);
3421 wpas_p2p_scan_res_join(wpa_s, NULL);
3422 return;
3423 }
3424 wpabuf_put_buf(ies, wps_ie);
3425 wpabuf_free(wps_ie);
3426
6d92fa6e 3427 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
ef922c4a 3428
47185fc7 3429 params.p2p_probe = 1;
ef922c4a
JM		 3430 params.extra_ies = wpabuf_head(ies);
3431 params.extra_ies_len = wpabuf_len(ies);
84286a22
SDU		 3432 if (freq > 0) {
3433 freqs[0] = freq;
3434 params.freqs = freqs;
3435 }
ef922c4a
JM		 3436
3437 /*
3438 * Run a scan to update BSS table and start Provision Discovery once
3439 * the new scan results become available.
3440 */
17fbb751 3441 ret = wpa_drv_scan(wpa_s, &params);
205e6474
JM		 3442 if (!ret)
3443 wpa_s->scan_res_handler = wpas_p2p_scan_res_join;
ef922c4a
JM		 3444
3445 wpabuf_free(ies);
3446
3447 if (ret) {
3448 wpa_printf(MSG_DEBUG, "P2P: Failed to start scan for join - "
3449 "try again later");
3450 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
3451 eloop_register_timeout(1, 0, wpas_p2p_join_scan, wpa_s, NULL);
9b1ab931 3452 wpas_p2p_check_join_scan_limit(wpa_s);
ef922c4a
JM		 3453 }
3454}
3455
3456
84286a22
SDU		 3457static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx)
3458{
3459 struct wpa_supplicant *wpa_s = eloop_ctx;
3460 wpas_p2p_join_scan_req(wpa_s, 0);
3461}
3462
3463
ef922c4a 3464static int wpas_p2p_join(struct wpa_supplicant *wpa_s, const u8 *iface_addr,
b31be3a0
JM		 3465 const u8 *dev_addr, enum p2p_wps_method wps_method,
3466 int auto_join)
ef922c4a
JM		 3467{
3468 wpa_printf(MSG_DEBUG, "P2P: Request to join existing group (iface "
b31be3a0
JM		 3469 MACSTR " dev " MACSTR ")%s",
3470 MAC2STR(iface_addr), MAC2STR(dev_addr),
3471 auto_join ? " (auto_join)" : "");
ef922c4a 3472
0918c4bf 3473 wpa_s->p2p_auto_pd = 0;
b31be3a0 3474 wpa_s->p2p_auto_join = !!auto_join;
ef922c4a
JM		 3475 os_memcpy(wpa_s->pending_join_iface_addr, iface_addr, ETH_ALEN);
3476 os_memcpy(wpa_s->pending_join_dev_addr, dev_addr, ETH_ALEN);
3477 wpa_s->pending_join_wps_method = wps_method;
3478
3479 /* Make sure we are not running find during connection establishment */
3480 wpas_p2p_stop_find(wpa_s);
3481
9b1ab931 3482 wpa_s->p2p_join_scan_count = 0;
ef922c4a
JM		 3483 wpas_p2p_join_scan(wpa_s, NULL);
3484 return 0;
b22128ef
JM		 3485}
3486
3487
3488static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s)
3489{
3490 struct wpa_supplicant *group;
3491 struct p2p_go_neg_results res;
8e64f258 3492 struct wpa_bss *bss;
b22128ef
JM		 3493
3494 group = wpas_p2p_get_group_iface(wpa_s, 0, 0);
3495 if (group == NULL)
3496 return -1;
3c5126a4 3497 if (group != wpa_s) {
b22128ef
JM		 3498 os_memcpy(group->p2p_pin, wpa_s->p2p_pin,
3499 sizeof(group->p2p_pin));
3c5126a4 3500 group->p2p_wps_method = wpa_s->p2p_wps_method;
2b79164f
JM		 3501 } else {
3502 /*
3503 * Need to mark the current interface for p2p_group_formation
3504 * when a separate group interface is not used. This is needed
3505 * to allow p2p_cancel stop a pending p2p_connect-join.
3506 * wpas_p2p_init_group_interface() addresses this for the case
3507 * where a separate group interface is used.
3508 */
3509 wpa_s->global->p2p_group_formation = wpa_s;
3c5126a4 3510 }
b22128ef
JM		 3511
3512 group->p2p_in_provisioning = 1;
aa9bb764 3513 group->p2p_fallback_to_go_neg = wpa_s->p2p_fallback_to_go_neg;
b22128ef
JM		 3514
3515 os_memset(&res, 0, sizeof(res));
3516 os_memcpy(res.peer_interface_addr, wpa_s->pending_join_iface_addr,
3517 ETH_ALEN);
3518 res.wps_method = wpa_s->pending_join_wps_method;
8e64f258
JM		 3519 bss = wpa_bss_get_bssid(wpa_s, wpa_s->pending_join_iface_addr);
3520 if (bss) {
3521 res.freq = bss->freq;
3522 res.ssid_len = bss->ssid_len;
3523 os_memcpy(res.ssid, bss->ssid, bss->ssid_len);
3524 }
3525
e91829f9
JM		 3526 if (wpa_s->off_channel_freq || wpa_s->roc_waiting_drv_freq) {
3527 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel prior to "
3528 "starting client");
3529 wpa_drv_cancel_remain_on_channel(wpa_s);
3530 wpa_s->off_channel_freq = 0;
3531 wpa_s->roc_waiting_drv_freq = 0;
3532 }
b22128ef
JM		 3533 wpas_start_wps_enrollee(group, &res);
3534
3094d483
JM		 3535 /*
3536 * Allow a longer timeout for join-a-running-group than normal 15
3537 * second group formation timeout since the GO may not have authorized
3538 * our connection yet.
3539 */
3540 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s, NULL);
3541 eloop_register_timeout(60, 0, wpas_p2p_group_formation_timeout,
3542 wpa_s, NULL);
3543
b22128ef
JM		 3544 return 0;
3545}
3546
3547
3548/**
3549 * wpas_p2p_connect - Request P2P Group Formation to be started
3550 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3551 * @peer_addr: Address of the peer P2P Device
3552 * @pin: PIN to use during provisioning or %NULL to indicate PBC mode
3553 * @persistent_group: Whether to create a persistent group
b31be3a0 3554 * @auto_join: Whether to select join vs. GO Negotiation automatically
b22128ef
JM		 3555 * @join: Whether to join an existing group (as a client) instead of starting
3556 * Group Owner negotiation; @peer_addr is BSSID in that case
3557 * @auth: Whether to only authorize the connection instead of doing that and
3558 * initiating Group Owner negotiation
3559 * @go_intent: GO Intent or -1 to use default
3560 * @freq: Frequency for the group or 0 for auto-selection
23c84252
JM		 3561 * @persistent_id: Persistent group credentials to use for forcing GO
3562 * parameters or -1 to generate new values (SSID/passphrase)
3bc462cb
JM		 3563 * @pd: Whether to send Provision Discovery prior to GO Negotiation as an
3564 * interoperability workaround when initiating group formation
e2308e4b 3565 * @ht40: Start GO with 40 MHz channel width
d054a462
JM		 3566 * Returns: 0 or new PIN (if pin was %NULL) on success, -1 on unspecified
3567 * failure, -2 on failure due to channel not currently available,
3568 * -3 if forced channel is not supported
b22128ef
JM		 3569 */
3570int wpas_p2p_connect(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
3571 const char *pin, enum p2p_wps_method wps_method,
b31be3a0 3572 int persistent_group, int auto_join, int join, int auth,
e2308e4b
RM		 3573 int go_intent, int freq, int persistent_id, int pd,
3574 int ht40)
b22128ef 3575{
04a3e69d 3576 int force_freq = 0, pref_freq = 0, oper_freq = 0;
b22128ef
JM		 3577 u8 bssid[ETH_ALEN];
3578 int ret = 0;
3579 enum wpa_driver_if_type iftype;
6cad95db 3580 const u8 *if_addr;
23c84252 3581 struct wpa_ssid *ssid = NULL;
b22128ef 3582
9526fd29
JM		 3583 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3584 return -1;
3585
23c84252
JM		 3586 if (persistent_id >= 0) {
3587 ssid = wpa_config_get_network(wpa_s->conf, persistent_id);
3588 if (ssid == NULL || ssid->disabled != 2 ||
3589 ssid->mode != WPAS_MODE_P2P_GO)
3590 return -1;
3591 }
3592
b22128ef
JM		 3593 if (go_intent < 0)
3594 go_intent = wpa_s->conf->p2p_go_intent;
3595
3596 if (!auth)
3597 wpa_s->p2p_long_listen = 0;
3598
3c5126a4 3599 wpa_s->p2p_wps_method = wps_method;
b31be3a0 3600 wpa_s->p2p_persistent_group = !!persistent_group;
23c84252 3601 wpa_s->p2p_persistent_id = persistent_id;
b31be3a0
JM		 3602 wpa_s->p2p_go_intent = go_intent;
3603 wpa_s->p2p_connect_freq = freq;
aa9bb764 3604 wpa_s->p2p_fallback_to_go_neg = 0;
3bc462cb 3605 wpa_s->p2p_pd_before_go_neg = !!pd;
e2308e4b 3606 wpa_s->p2p_go_ht40 = !!ht40;
3c5126a4 3607
b22128ef
JM		 3608 if (pin)
3609 os_strlcpy(wpa_s->p2p_pin, pin, sizeof(wpa_s->p2p_pin));
3610 else if (wps_method == WPS_PIN_DISPLAY) {
3611 ret = wps_generate_pin();
3612 os_snprintf(wpa_s->p2p_pin, sizeof(wpa_s->p2p_pin), "%08d",
3613 ret);
3614 wpa_printf(MSG_DEBUG, "P2P: Randomly generated PIN: %s",
3615 wpa_s->p2p_pin);
3616 } else
3617 wpa_s->p2p_pin[0] = '\0';
3618
b31be3a0 3619 if (join || auto_join) {
4147a2cc 3620 u8 iface_addr[ETH_ALEN], dev_addr[ETH_ALEN];
108def93
JM		 3621 if (auth) {
3622 wpa_printf(MSG_DEBUG, "P2P: Authorize invitation to "
3623 "connect a running group from " MACSTR,
3624 MAC2STR(peer_addr));
3625 os_memcpy(wpa_s->p2p_auth_invite, peer_addr, ETH_ALEN);
3626 return ret;
3627 }
4147a2cc 3628 os_memcpy(dev_addr, peer_addr, ETH_ALEN);
b22128ef 3629 if (p2p_get_interface_addr(wpa_s->global->p2p, peer_addr,
4147a2cc 3630 iface_addr) < 0) {
b22128ef 3631 os_memcpy(iface_addr, peer_addr, ETH_ALEN);
4147a2cc
JM		 3632 p2p_get_dev_addr(wpa_s->global->p2p, peer_addr,
3633 dev_addr);
3634 }
b31be3a0
JM		 3635 if (auto_join) {
3636 os_get_time(&wpa_s->p2p_auto_started);
3637 wpa_printf(MSG_DEBUG, "P2P: Auto join started at "
3638 "%ld.%06ld",
3639 wpa_s->p2p_auto_started.sec,
3640 wpa_s->p2p_auto_started.usec);
3641 }
67527166 3642 wpa_s->user_initiated_pd = 1;
b31be3a0
JM		 3643 if (wpas_p2p_join(wpa_s, iface_addr, dev_addr, wps_method,
3644 auto_join) < 0)
b22128ef
JM		 3645 return -1;
3646 return ret;
3647 }
3648
d054a462
JM		 3649 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3650 wpa_s->assoc_freq)
3651 oper_freq = wpa_s->assoc_freq;
b22128ef 3652 else {
d054a462
JM		 3653 oper_freq = wpa_drv_shared_freq(wpa_s);
3654 if (oper_freq < 0)
3655 oper_freq = 0;
b22128ef
JM		 3656 }
3657
d054a462
JM		 3658 if (freq > 0) {
3659 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
3660 wpa_printf(MSG_DEBUG, "P2P: The forced channel "
3661 "(%u MHz) is not supported for P2P uses",
3662 freq);
3663 return -3;
3664 }
3665
3666 if (oper_freq > 0 && freq != oper_freq &&
3667 !(wpa_s->drv_flags &
3668 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3669 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3670 "on %u MHz while connected on another "
3671 "channel (%u MHz)", freq, oper_freq);
3672 return -2;
3673 }
3674 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3675 "requested channel (%u MHz)", freq);
3676 force_freq = freq;
3677 } else if (oper_freq > 0 &&
3678 !p2p_supported_freq(wpa_s->global->p2p, oper_freq)) {
3679 if (!(wpa_s->drv_flags &
3680 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3681 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group "
3682 "while connected on non-P2P supported "
3683 "channel (%u MHz)", oper_freq);
3684 return -2;
3685 }
3686 wpa_printf(MSG_DEBUG, "P2P: Current operating channel "
3687 "(%u MHz) not available for P2P - try to use "
3688 "another channel", oper_freq);
3689 force_freq = 0;
04a3e69d
JM		 3690 } else if (oper_freq > 0 &&
3691 (wpa_s->drv_flags &
3692 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3693 wpa_printf(MSG_DEBUG, "P2P: Trying to prefer the channel we "
3694 "are already using (%u MHz) on another interface",
3695 oper_freq);
3696 pref_freq = oper_freq;
d054a462 3697 } else if (oper_freq > 0) {
b22128ef
JM		 3698 wpa_printf(MSG_DEBUG, "P2P: Trying to force us to use the "
3699 "channel we are already using (%u MHz) on another "
d054a462
JM		 3700 "interface", oper_freq);
3701 force_freq = oper_freq;
b22128ef
JM		 3702 }
3703
3704 wpa_s->create_p2p_iface = wpas_p2p_create_iface(wpa_s);
3705
6cad95db
JB		 3706 if (wpa_s->create_p2p_iface) {
3707 /* Prepare to add a new interface for the group */
3708 iftype = WPA_IF_P2P_GROUP;
3709 if (go_intent == 15)
3710 iftype = WPA_IF_P2P_GO;
3711 if (wpas_p2p_add_group_interface(wpa_s, iftype) < 0) {
3712 wpa_printf(MSG_ERROR, "P2P: Failed to allocate a new "
3713 "interface for the group");
b22128ef 3714 return -1;
6cad95db 3715 }
b22128ef 3716
6cad95db
JB		 3717 if_addr = wpa_s->pending_interface_addr;
3718 } else
3719 if_addr = wpa_s->own_addr;
b22128ef
JM		 3720
3721 if (auth) {
3722 if (wpas_p2p_auth_go_neg(wpa_s, peer_addr, wps_method,
6cad95db 3723 go_intent, if_addr,
04a3e69d
JM		 3724 force_freq, persistent_group, ssid,
3725 pref_freq) < 0)
b22128ef
JM		 3726 return -1;
3727 return ret;
3728 }
6cad95db
JB		 3729
3730 if (wpas_p2p_start_go_neg(wpa_s, peer_addr, wps_method,
3731 go_intent, if_addr, force_freq,
04a3e69d 3732 persistent_group, ssid, pref_freq) < 0) {
6cad95db
JB		 3733 if (wpa_s->create_p2p_iface)
3734 wpas_p2p_remove_pending_group_interface(wpa_s);
b22128ef
JM		 3735 return -1;
3736 }
3737 return ret;
3738}
3739
3740
3741/**
3742 * wpas_p2p_remain_on_channel_cb - Indication of remain-on-channel start
3743 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3744 * @freq: Frequency of the channel in MHz
3745 * @duration: Duration of the stay on the channel in milliseconds
3746 *
3747 * This callback is called when the driver indicates that it has started the
3748 * requested remain-on-channel duration.
3749 */
3750void wpas_p2p_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3751 unsigned int freq, unsigned int duration)
3752{
9526fd29
JM		 3753 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3754 return;
b22128ef
JM		 3755 if (wpa_s->off_channel_freq == wpa_s->pending_listen_freq) {
3756 p2p_listen_cb(wpa_s->global->p2p, wpa_s->pending_listen_freq,
3757 wpa_s->pending_listen_duration);
3758 wpa_s->pending_listen_freq = 0;
3759 }
3760}
3761
3762
3763static int wpas_p2p_listen_start(struct wpa_supplicant *wpa_s,
3764 unsigned int timeout)
3765{
3766 /* Limit maximum Listen state time based on driver limitation. */
3767 if (timeout > wpa_s->max_remain_on_chan)
3768 timeout = wpa_s->max_remain_on_chan;
3769
3ac17eba
JM		 3770 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
3771 return wpa_drv_p2p_listen(wpa_s, timeout);
3772
b22128ef
JM		 3773 return p2p_listen(wpa_s->global->p2p, timeout);
3774}
3775
3776
3777/**
3778 * wpas_p2p_cancel_remain_on_channel_cb - Remain-on-channel timeout
3779 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3780 * @freq: Frequency of the channel in MHz
3781 *
3782 * This callback is called when the driver indicates that a remain-on-channel
3783 * operation has been completed, i.e., the duration on the requested channel
3784 * has timed out.
3785 */
3786void wpas_p2p_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
3787 unsigned int freq)
3788{
1cc3a29d 3789 wpa_printf(MSG_DEBUG, "P2P: Cancel remain-on-channel callback "
11fb02be 3790 "(p2p_long_listen=%d ms pending_action_tx=%p)",
2f3101d8 3791 wpa_s->p2p_long_listen, offchannel_pending_action_tx(wpa_s));
9526fd29
JM		 3792 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3793 return;
b22128ef
JM		 3794 if (p2p_listen_end(wpa_s->global->p2p, freq) > 0)
3795 return; /* P2P module started a new operation */
2f3101d8 3796 if (offchannel_pending_action_tx(wpa_s))
b22128ef
JM		 3797 return;
3798 if (wpa_s->p2p_long_listen > 0)
11fb02be 3799 wpa_s->p2p_long_listen -= wpa_s->max_remain_on_chan;
b22128ef
JM		 3800 if (wpa_s->p2p_long_listen > 0) {
3801 wpa_printf(MSG_DEBUG, "P2P: Continuing long Listen state");
11fb02be 3802 wpas_p2p_listen_start(wpa_s, wpa_s->p2p_long_listen);
b22128ef
JM		 3803 }
3804}
3805
3806
3807/**
3808 * wpas_p2p_group_remove - Remove a P2P group
3809 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3810 * @ifname: Network interface name of the group interface or "*" to remove all
3811 * groups
3812 * Returns: 0 on success, -1 on failure
3813 *
3814 * This function is used to remove a P2P group. This can be used to disconnect
3815 * from a group in which the local end is a P2P Client or to end a P2P Group in
3816 * case the local end is the Group Owner. If a virtual network interface was
3817 * created for this group, that interface will be removed. Otherwise, only the
3818 * configured P2P group network will be removed from the interface.
3819 */
3820int wpas_p2p_group_remove(struct wpa_supplicant *wpa_s, const char *ifname)
3821{
3822 struct wpa_global *global = wpa_s->global;
3823
3824 if (os_strcmp(ifname, "*") == 0) {
3825 struct wpa_supplicant *prev;
3826 wpa_s = global->ifaces;
3827 while (wpa_s) {
3828 prev = wpa_s;
3829 wpa_s = wpa_s->next;
3103f345 3830 wpas_p2p_disconnect(prev);
b22128ef
JM		 3831 }
3832 return 0;
3833 }
3834
3835 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
3836 if (os_strcmp(wpa_s->ifname, ifname) == 0)
3837 break;
3838 }
3839
3103f345 3840 return wpas_p2p_disconnect(wpa_s);
b22128ef
JM		 3841}
3842
3843
b8349523
NKG		 3844static int wpas_p2p_init_go_params(struct wpa_supplicant *wpa_s,
3845 struct p2p_go_neg_results *params,
7aeac985 3846 int freq, int ht40)
b22128ef
JM		 3847{
3848 u8 bssid[ETH_ALEN];
3849 int res;
3850
3851 os_memset(params, 0, sizeof(*params));
3852 params->role_go = 1;
7aeac985 3853 params->ht40 = ht40;
7cfc4ac3
AGS		 3854 if (freq) {
3855 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on forced "
3856 "frequency %d MHz", freq);
b22128ef 3857 params->freq = freq;
7cfc4ac3
AGS		 3858 } else if (wpa_s->conf->p2p_oper_reg_class == 81 &&
3859 wpa_s->conf->p2p_oper_channel >= 1 &&
3860 wpa_s->conf->p2p_oper_channel <= 11) {
b22128ef 3861 params->freq = 2407 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 3862 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3863 "frequency %d MHz", params->freq);
3864 } else if (wpa_s->conf->p2p_oper_reg_class == 115 ||
409ca9a8
JM		 3865 wpa_s->conf->p2p_oper_reg_class == 116 ||
3866 wpa_s->conf->p2p_oper_reg_class == 117 ||
3867 wpa_s->conf->p2p_oper_reg_class == 124 ||
3868 wpa_s->conf->p2p_oper_reg_class == 126 ||
3869 wpa_s->conf->p2p_oper_reg_class == 127) {
b22128ef 3870 params->freq = 5000 + 5 * wpa_s->conf->p2p_oper_channel;
7cfc4ac3
AGS		 3871 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on configured "
3872 "frequency %d MHz", params->freq);
3873 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3874 wpa_s->best_overall_freq > 0 &&
3875 p2p_supported_freq(wpa_s->global->p2p,
3876 wpa_s->best_overall_freq)) {
3877 params->freq = wpa_s->best_overall_freq;
3878 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best overall "
3879 "channel %d MHz", params->freq);
3880 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3881 wpa_s->best_24_freq > 0 &&
3882 p2p_supported_freq(wpa_s->global->p2p,
3883 wpa_s->best_24_freq)) {
3884 params->freq = wpa_s->best_24_freq;
3885 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 2.4 GHz "
3886 "channel %d MHz", params->freq);
3887 } else if (wpa_s->conf->p2p_oper_channel == 0 &&
3888 wpa_s->best_5_freq > 0 &&
3889 p2p_supported_freq(wpa_s->global->p2p,
3890 wpa_s->best_5_freq)) {
3891 params->freq = wpa_s->best_5_freq;
3892 wpa_printf(MSG_DEBUG, "P2P: Set GO freq based on best 5 GHz "
3893 "channel %d MHz", params->freq);
3894 } else {
6f3bc72b
JM		 3895 int chan;
3896 for (chan = 0; chan < 11; chan++) {
3897 params->freq = 2412 + chan * 5;
3898 if (!wpas_p2p_disallowed_freq(wpa_s->global,
3899 params->freq))
3900 break;
3901 }
3902 if (chan == 11) {
3903 wpa_printf(MSG_DEBUG, "P2P: No 2.4 GHz channel "
3904 "allowed");
3905 return -1;
3906 }
7cfc4ac3
AGS		 3907 wpa_printf(MSG_DEBUG, "P2P: Set GO freq %d MHz (no preference "
3908 "known)", params->freq);
3909 }
3910
b22128ef
JM		 3911 if (wpa_s->current_ssid && wpa_drv_get_bssid(wpa_s, bssid) == 0 &&
3912 wpa_s->assoc_freq && !freq) {
3913 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3914 "already using");
3915 params->freq = wpa_s->assoc_freq;
3916 }
3917
3918 res = wpa_drv_shared_freq(wpa_s);
3919 if (res > 0 && !freq) {
3920 wpa_printf(MSG_DEBUG, "P2P: Force GO on the channel we are "
3921 "already using on a shared interface");
3922 params->freq = res;
b8349523
NKG		 3923 } else if (res > 0 && freq != res &&
3924 !(wpa_s->drv_flags &
3925 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT)) {
3926 wpa_printf(MSG_DEBUG, "P2P: Cannot start P2P group on %u MHz "
3927 "while connected on another channel (%u MHz)",
3928 freq, res);
3929 return -1;
b22128ef 3930 }
b8349523
NKG		 3931
3932 return 0;
b22128ef
JM		 3933}
3934
3935
3936static struct wpa_supplicant *
3937wpas_p2p_get_group_iface(struct wpa_supplicant *wpa_s, int addr_allocated,
3938 int go)
3939{
3940 struct wpa_supplicant *group_wpa_s;
3941
ac06fb12
JM		 3942 if (!wpas_p2p_create_iface(wpa_s)) {
3943 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use same interface for group "
3944 "operations");
b22128ef 3945 return wpa_s;
ac06fb12 3946 }
b22128ef
JM		 3947
3948 if (wpas_p2p_add_group_interface(wpa_s, go ? WPA_IF_P2P_GO :
ac06fb12
JM		 3949 WPA_IF_P2P_CLIENT) < 0) {
3950 wpa_msg(wpa_s, MSG_ERROR, "P2P: Failed to add group interface");
b22128ef 3951 return NULL;
ac06fb12 3952 }
b22128ef
JM		 3953 group_wpa_s = wpas_p2p_init_group_interface(wpa_s, go);
3954 if (group_wpa_s == NULL) {
ac06fb12
JM		 3955 wpa_msg(wpa_s, MSG_ERROR, "P2P: Failed to initialize group "
3956 "interface");
b22128ef
JM		 3957 wpas_p2p_remove_pending_group_interface(wpa_s);
3958 return NULL;
3959 }
3960
ac06fb12
JM		 3961 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use separate group interface %s",
3962 group_wpa_s->ifname);
b22128ef
JM		 3963 return group_wpa_s;
3964}
3965
3966
3967/**
3968 * wpas_p2p_group_add - Add a new P2P group with local end as Group Owner
3969 * @wpa_s: Pointer to wpa_supplicant data from wpa_supplicant_add_iface()
3970 * @persistent_group: Whether to create a persistent group
3971 * @freq: Frequency for the group or 0 to indicate no hardcoding
3972 * Returns: 0 on success, -1 on failure
3973 *
3974 * This function creates a new P2P group with the local end as the Group Owner,
3975 * i.e., without using Group Owner Negotiation.
3976 */
3977int wpas_p2p_group_add(struct wpa_supplicant *wpa_s, int persistent_group,
7aeac985 3978 int freq, int ht40)
b22128ef
JM		 3979{
3980 struct p2p_go_neg_results params;
7cfc4ac3
AGS		 3981 unsigned int r;
3982
9526fd29
JM		 3983 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
3984 return -1;
3985
2d4f15d6
JJ		 3986 /* Make sure we are not running find during connection establishment */
3987 wpa_printf(MSG_DEBUG, "P2P: Stop any on-going P2P FIND");
8713a2e6 3988 wpas_p2p_stop_find_oper(wpa_s);
2d4f15d6 3989
7cfc4ac3
AGS		 3990 if (freq == 2) {
3991 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 2.4 GHz "
3992 "band");
3993 if (wpa_s->best_24_freq > 0 &&
3994 p2p_supported_freq(wpa_s->global->p2p,
3995 wpa_s->best_24_freq)) {
3996 freq = wpa_s->best_24_freq;
3997 wpa_printf(MSG_DEBUG, "P2P: Use best 2.4 GHz band "
3998 "channel: %d MHz", freq);
3999 } else {
4000 os_get_random((u8 *) &r, sizeof(r));
4001 freq = 2412 + (r % 3) * 25;
4002 wpa_printf(MSG_DEBUG, "P2P: Use random 2.4 GHz band "
4003 "channel: %d MHz", freq);
4004 }
4005 }
4006
4007 if (freq == 5) {
4008 wpa_printf(MSG_DEBUG, "P2P: Request to start GO on 5 GHz "
4009 "band");
4010 if (wpa_s->best_5_freq > 0 &&
4011 p2p_supported_freq(wpa_s->global->p2p,
4012 wpa_s->best_5_freq)) {
4013 freq = wpa_s->best_5_freq;
4014 wpa_printf(MSG_DEBUG, "P2P: Use best 5 GHz band "
4015 "channel: %d MHz", freq);
4016 } else {
4017 os_get_random((u8 *) &r, sizeof(r));
4018 freq = 5180 + (r % 4) * 20;
4019 if (!p2p_supported_freq(wpa_s->global->p2p, freq)) {
4020 wpa_printf(MSG_DEBUG, "P2P: Could not select "
4021 "5 GHz channel for P2P group");
4022 return -1;
4023 }
4024 wpa_printf(MSG_DEBUG, "P2P: Use random 5 GHz band "
4025 "channel: %d MHz", freq);
4026 }
4027 }
b22128ef 4028
4ae4650b
JM		 4029 if (freq > 0 && !p2p_supported_freq(wpa_s->global->p2p, freq)) {
4030 wpa_printf(MSG_DEBUG, "P2P: The forced channel for GO "
4031 "(%u MHz) is not supported for P2P uses",
4032 freq);
4033 return -1;
4034 }
4035
7aeac985 4036 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40))
b8349523 4037 return -1;
f4329aa2
JM		 4038 if (params.freq &&
4039 !p2p_supported_freq(wpa_s->global->p2p, params.freq)) {
4040 wpa_printf(MSG_DEBUG, "P2P: The selected channel for GO "
4041 "(%u MHz) is not supported for P2P uses",
4042 params.freq);
4043 return -1;
4044 }
b22128ef
JM		 4045 p2p_go_params(wpa_s->global->p2p, &params);
4046 params.persistent_group = persistent_group;
4047
4048 wpa_s = wpas_p2p_get_group_iface(wpa_s, 0, 1);
4049 if (wpa_s == NULL)
4050 return -1;
4051 wpas_start_wps_go(wpa_s, &params, 0);
4052
4053 return 0;
4054}
4055
4056
4057static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
4058 struct wpa_ssid *params, int addr_allocated)
4059{
4060 struct wpa_ssid *ssid;
4061
4062 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
4063 if (wpa_s == NULL)
4064 return -1;
4065
4066 wpa_supplicant_ap_deinit(wpa_s);
4067
4068 ssid = wpa_config_add_network(wpa_s->conf);
4069 if (ssid == NULL)
4070 return -1;
b22128ef
JM		 4071 wpa_config_set_network_defaults(ssid);
4072 ssid->temporary = 1;
4073 ssid->proto = WPA_PROTO_RSN;
4074 ssid->pairwise_cipher = WPA_CIPHER_CCMP;
4075 ssid->group_cipher = WPA_CIPHER_CCMP;
4076 ssid->key_mgmt = WPA_KEY_MGMT_PSK;
4077 ssid->ssid = os_malloc(params->ssid_len);
4078 if (ssid->ssid == NULL) {
b22128ef
JM		 4079 wpa_config_remove_network(wpa_s->conf, ssid->id);
4080 return -1;
4081 }
4082 os_memcpy(ssid->ssid, params->ssid, params->ssid_len);
4083 ssid->ssid_len = params->ssid_len;
4084 ssid->p2p_group = 1;
d1c8ac88 4085 ssid->export_keys = 1;
b22128ef
JM		 4086 if (params->psk_set) {
4087 os_memcpy(ssid->psk, params->psk, 32);
4088 ssid->psk_set = 1;
4089 }
4090 if (params->passphrase)
4091 ssid->passphrase = os_strdup(params->passphrase);
4092
4093 wpa_supplicant_select_network(wpa_s, ssid);
4094
4095 wpa_s->show_group_started = 1;
4096
4097 return 0;
4098}
4099
4100
4101int wpas_p2p_group_add_persistent(struct wpa_supplicant *wpa_s,
4102 struct wpa_ssid *ssid, int addr_allocated,
7aeac985 4103 int freq, int ht40)
b22128ef
JM		 4104{
4105 struct p2p_go_neg_results params;
6c0da49f 4106 int go = 0;
b22128ef
JM		 4107
4108 if (ssid->disabled != 2 || ssid->ssid == NULL)
4109 return -1;
4110
6c0da49f
JM		 4111 if (wpas_get_p2p_group(wpa_s, ssid->ssid, ssid->ssid_len, &go) &&
4112 go == (ssid->mode == WPAS_MODE_P2P_GO)) {
4113 wpa_printf(MSG_DEBUG, "P2P: Requested persistent group is "
4114 "already running");
4115 return 0;
4116 }
4117
9d39057c 4118 /* Make sure we are not running find during connection establishment */
8713a2e6 4119 wpas_p2p_stop_find_oper(wpa_s);
b22128ef 4120
aa9bb764
JM		 4121 wpa_s->p2p_fallback_to_go_neg = 0;
4122
b22128ef
JM		 4123 if (ssid->mode == WPAS_MODE_INFRA)
4124 return wpas_start_p2p_client(wpa_s, ssid, addr_allocated);
4125
4126 if (ssid->mode != WPAS_MODE_P2P_GO)
4127 return -1;
4128
7aeac985 4129 if (wpas_p2p_init_go_params(wpa_s, &params, freq, ht40))
b8349523 4130 return -1;
b22128ef
JM		 4131
4132 params.role_go = 1;
30c371e8
MH		 4133 params.psk_set = ssid->psk_set;
4134 if (params.psk_set)
4135 os_memcpy(params.psk, ssid->psk, sizeof(params.psk));
bb4d4deb
MH		 4136 if (ssid->passphrase) {
4137 if (os_strlen(ssid->passphrase) >= sizeof(params.passphrase)) {
4138 wpa_printf(MSG_ERROR, "P2P: Invalid passphrase in "
4139 "persistent group");
4140 return -1;
4141 }
4142 os_strlcpy(params.passphrase, ssid->passphrase,
4143 sizeof(params.passphrase));
b22128ef 4144 }
b22128ef
JM		 4145 os_memcpy(params.ssid, ssid->ssid, ssid->ssid_len);
4146 params.ssid_len = ssid->ssid_len;
4147 params.persistent_group = 1;
4148
4149 wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 1);
4150 if (wpa_s == NULL)
4151 return -1;
4152
4153 wpas_start_wps_go(wpa_s, &params, 0);
4154
4155 return 0;
4156}
4157
4158
4159static void wpas_p2p_ie_update(void *ctx, struct wpabuf *beacon_ies,
4160 struct wpabuf *proberesp_ies)
4161{
4162 struct wpa_supplicant *wpa_s = ctx;
4163 if (wpa_s->ap_iface) {
4164 struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
adc33680
JM		 4165 if (!(hapd->conf->p2p & P2P_GROUP_OWNER)) {
4166 wpabuf_free(beacon_ies);
4167 wpabuf_free(proberesp_ies);
4168 return;
4169 }
b22128ef
JM		 4170 if (beacon_ies) {
4171 wpabuf_free(hapd->p2p_beacon_ie);
4172 hapd->p2p_beacon_ie = beacon_ies;
4173 }
4174 wpabuf_free(hapd->p2p_probe_resp_ie);
4175 hapd->p2p_probe_resp_ie = proberesp_ies;
4176 } else {
4177 wpabuf_free(beacon_ies);
4178 wpabuf_free(proberesp_ies);
4179 }
4180 wpa_supplicant_ap_update_beacon(wpa_s);
4181}
4182
4183
3071e181
JM		 4184static void wpas_p2p_idle_update(void *ctx, int idle)
4185{
4186 struct wpa_supplicant *wpa_s = ctx;
4187 if (!wpa_s->ap_iface)
4188 return;
4189 wpa_printf(MSG_DEBUG, "P2P: GO - group %sidle", idle ? "" : "not ");
4190 if (idle)
4191 wpas_p2p_set_group_idle_timeout(wpa_s);
4192 else
4193 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL);
4194}
4195
4196
b22128ef 4197struct p2p_group * wpas_p2p_group_init(struct wpa_supplicant *wpa_s,
6f251b6b 4198 struct wpa_ssid *ssid)
b22128ef
JM		 4199{
4200 struct p2p_group *group;
4201 struct p2p_group_config *cfg;
4202
3ac17eba
JM		 4203 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4204 return NULL;
9526fd29
JM		 4205 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4206 return NULL;
3ac17eba 4207
b22128ef
JM		 4208 cfg = os_zalloc(sizeof(*cfg));
4209 if (cfg == NULL)
4210 return NULL;
4211
6f251b6b 4212 if (ssid->p2p_persistent_group && wpa_s->conf->persistent_reconnect)
acc247b2 4213 cfg->persistent_group = 2;
6f251b6b 4214 else if (ssid->p2p_persistent_group)
acc247b2 4215 cfg->persistent_group = 1;
b22128ef 4216 os_memcpy(cfg->interface_addr, wpa_s->own_addr, ETH_ALEN);
3f4ce13f
JM		 4217 if (wpa_s->max_stations &&
4218 wpa_s->max_stations < wpa_s->conf->max_num_sta)
4219 cfg->max_clients = wpa_s->max_stations;
4220 else
4221 cfg->max_clients = wpa_s->conf->max_num_sta;
6f251b6b
JM		 4222 os_memcpy(cfg->ssid, ssid->ssid, ssid->ssid_len);
4223 cfg->ssid_len = ssid->ssid_len;
b22128ef
JM		 4224 cfg->cb_ctx = wpa_s;
4225 cfg->ie_update = wpas_p2p_ie_update;
3071e181 4226 cfg->idle_update = wpas_p2p_idle_update;
b22128ef
JM		 4227
4228 group = p2p_group_init(wpa_s->global->p2p, cfg);
4229 if (group == NULL)
4230 os_free(cfg);
6f251b6b 4231 if (ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
b22128ef
JM		 4232 p2p_group_notif_formation_done(group);
4233 wpa_s->p2p_group = group;
4234 return group;
4235}
4236
4237
4238void wpas_p2p_wps_success(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4239 int registrar)
4240{
10531d21
JM		 4241 struct wpa_ssid *ssid = wpa_s->current_ssid;
4242
b22128ef
JM		 4243 if (!wpa_s->p2p_in_provisioning) {
4244 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS success event - P2P "
4245 "provisioning not in progress");
4246 return;
4247 }
4248
10531d21
JM		 4249 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4250 u8 go_dev_addr[ETH_ALEN];
4251 os_memcpy(go_dev_addr, wpa_s->bssid, ETH_ALEN);
4252 wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4253 ssid->ssid_len);
4254 /* Clear any stored provisioning info */
4255 p2p_clear_provisioning_info(wpa_s->global->p2p, go_dev_addr);
4256 }
ec437d9e 4257
b22128ef
JM		 4258 eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->parent,
4259 NULL);
361cdf34
JM		 4260 if (ssid && ssid->mode == WPAS_MODE_INFRA) {
4261 /*
4262 * Use a separate timeout for initial data connection to
4263 * complete to allow the group to be removed automatically if
4264 * something goes wrong in this step before the P2P group idle
4265 * timeout mechanism is taken into use.
4266 */
4267 eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
4268 wpas_p2p_group_formation_timeout,
ad853202 4269 wpa_s->parent, NULL);
361cdf34 4270 }
b22128ef
JM		 4271 if (wpa_s->global->p2p)
4272 p2p_wps_success_cb(wpa_s->global->p2p, peer_addr);
3ac17eba
JM		 4273 else if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4274 wpa_drv_wps_success_cb(wpa_s, peer_addr);
b22128ef
JM		 4275 wpas_group_formation_completed(wpa_s, 1);
4276}
4277
4278
3734552f
JS		 4279void wpas_p2p_wps_failed(struct wpa_supplicant *wpa_s,
4280 struct wps_event_fail *fail)
4281{
4282 if (!wpa_s->p2p_in_provisioning) {
4283 wpa_printf(MSG_DEBUG, "P2P: Ignore WPS fail event - P2P "
4284 "provisioning not in progress");
4285 return;
4286 }
ec437d9e
JJ		 4287
4288 if (wpa_s->go_params) {
4289 p2p_clear_provisioning_info(
4290 wpa_s->global->p2p,
10531d21 4291 wpa_s->go_params->peer_device_addr);
ec437d9e
JJ		 4292 }
4293
3734552f
JS		 4294 wpas_notify_p2p_wps_failed(wpa_s, fail);
4295}
4296
4297
b22128ef 4298int wpas_p2p_prov_disc(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
0918c4bf
JM		 4299 const char *config_method,
4300 enum wpas_p2p_prov_disc_use use)
b22128ef
JM		 4301{
4302 u16 config_methods;
4303
aa9bb764 4304 wpa_s->p2p_fallback_to_go_neg = 0;
0918c4bf 4305 wpa_s->pending_pd_use = NORMAL_PD;
8c5f7309 4306 if (os_strncmp(config_method, "display", 7) == 0)
b22128ef 4307 config_methods = WPS_CONFIG_DISPLAY;
8c5f7309 4308 else if (os_strncmp(config_method, "keypad", 6) == 0)
b22128ef 4309 config_methods = WPS_CONFIG_KEYPAD;
8c5f7309
JJ		 4310 else if (os_strncmp(config_method, "pbc", 3) == 0 ||
4311 os_strncmp(config_method, "pushbutton", 10) == 0)
b22128ef 4312 config_methods = WPS_CONFIG_PUSHBUTTON;
8c5f7309
JJ		 4313 else {
4314 wpa_printf(MSG_DEBUG, "P2P: Unknown config method");
b22128ef 4315 return -1;
8c5f7309 4316 }
b22128ef 4317
0918c4bf
JM		 4318 if (use == WPAS_P2P_PD_AUTO) {
4319 os_memcpy(wpa_s->pending_join_dev_addr, peer_addr, ETH_ALEN);
4320 wpa_s->pending_pd_config_methods = config_methods;
4321 wpa_s->p2p_auto_pd = 1;
4322 wpa_s->p2p_auto_join = 0;
4323 wpa_s->pending_pd_before_join = 0;
84286a22 4324 wpa_s->auto_pd_scan_retry = 0;
0918c4bf
JM		 4325 wpas_p2p_stop_find(wpa_s);
4326 wpa_s->p2p_join_scan_count = 0;
84286a22
SDU		 4327 os_get_time(&wpa_s->p2p_auto_started);
4328 wpa_printf(MSG_DEBUG, "P2P: Auto PD started at %ld.%06ld",
4329 wpa_s->p2p_auto_started.sec,
4330 wpa_s->p2p_auto_started.usec);
0918c4bf
JM		 4331 wpas_p2p_join_scan(wpa_s, NULL);
4332 return 0;
4333 }
4334
3ac17eba
JM		 4335 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4336 return wpa_drv_p2p_prov_disc_req(wpa_s, peer_addr,
0918c4bf
JM		 4337 config_methods,
4338 use == WPAS_P2P_PD_FOR_JOIN);
3ac17eba
JM		 4339 }
4340
9526fd29 4341 if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
b22128ef
JM		 4342 return -1;
4343
4344 return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
0918c4bf 4345 config_methods, use == WPAS_P2P_PD_FOR_JOIN,
67527166 4346 0, 1);
b22128ef
JM		 4347}
4348
4349
4350int wpas_p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf,
4351 char *end)
4352{
4353 return p2p_scan_result_text(ies, ies_len, buf, end);
4354}
4355
4356
1cc3a29d
JM		 4357static void wpas_p2p_clear_pending_action_tx(struct wpa_supplicant *wpa_s)
4358{
2f3101d8 4359 if (!offchannel_pending_action_tx(wpa_s))
1cc3a29d
JM		 4360 return;
4361
4362 wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
4363 "operation request");
2f3101d8 4364 offchannel_clear_pending_action_tx(wpa_s);
1cc3a29d
JM		 4365}
4366
4367
b22128ef 4368int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
046ef4aa 4369 enum p2p_discovery_type type,
6d92fa6e 4370 unsigned int num_req_dev_types, const u8 *req_dev_types,
37448ede 4371 const u8 *dev_id, unsigned int search_delay)
b22128ef 4372{
1cc3a29d 4373 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef
JM		 4374 wpa_s->p2p_long_listen = 0;
4375
3ac17eba
JM		 4376 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4377 return wpa_drv_p2p_find(wpa_s, timeout, type);
4378
5bda43cd
SDU		 4379 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL ||
4380 wpa_s->p2p_in_provisioning)
9526fd29
JM		 4381 return -1;
4382
433cd2ce
JM		 4383 wpa_supplicant_cancel_sched_scan(wpa_s);
4384
046ef4aa 4385 return p2p_find(wpa_s->global->p2p, timeout, type,
37448ede
JM		 4386 num_req_dev_types, req_dev_types, dev_id,
4387 search_delay);
b22128ef
JM		 4388}
4389
4390
8713a2e6 4391static int wpas_p2p_stop_find_oper(struct wpa_supplicant *wpa_s)
b22128ef 4392{
1cc3a29d 4393 wpas_p2p_clear_pending_action_tx(wpa_s);
b22128ef 4394 wpa_s->p2p_long_listen = 0;
9d39057c 4395 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
ef922c4a 4396 eloop_cancel_timeout(wpas_p2p_join_scan, wpa_s, NULL);
e665ca9a 4397 wpa_s->global->p2p_cb_on_scan_complete = 0;
b22128ef 4398
3ac17eba
JM		 4399 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT) {
4400 wpa_drv_p2p_stop_find(wpa_s);
8713a2e6 4401 return 1;
3ac17eba
JM		 4402 }
4403
9526fd29
JM		 4404 if (wpa_s->global->p2p)
4405 p2p_stop_find(wpa_s->global->p2p);
b22128ef 4406
8713a2e6
JM		 4407 return 0;
4408}
4409
4410
4411void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s)
4412{
4413 if (wpas_p2p_stop_find_oper(wpa_s) > 0)
4414 return;
b22128ef
JM		 4415 wpas_p2p_remove_pending_group_interface(wpa_s);
4416}
4417
4418
4419static void wpas_p2p_long_listen_timeout(void *eloop_ctx, void *timeout_ctx)
4420{
4421 struct wpa_supplicant *wpa_s = eloop_ctx;
4422 wpa_s->p2p_long_listen = 0;
4423}
4424
4425
4426int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
4427{
4428 int res;
4429
9526fd29
JM		 4430 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4431 return -1;
4432
433cd2ce 4433 wpa_supplicant_cancel_sched_scan(wpa_s);
1cc3a29d
JM		 4434 wpas_p2p_clear_pending_action_tx(wpa_s);
4435
b22128ef
JM		 4436 if (timeout == 0) {
4437 /*
4438 * This is a request for unlimited Listen state. However, at
4439 * least for now, this is mapped to a Listen state for one
4440 * hour.
4441 */
4442 timeout = 3600;
4443 }
4444 eloop_cancel_timeout(wpas_p2p_long_listen_timeout, wpa_s, NULL);
4445 wpa_s->p2p_long_listen = 0;
4446
2bb747e2
JM		 4447 /*
4448 * Stop previous find/listen operation to avoid trying to request a new
4449 * remain-on-channel operation while the driver is still running the
4450 * previous one.
4451 */
4452 if (wpa_s->global->p2p)
4453 p2p_stop_find(wpa_s->global->p2p);
4454
b22128ef
JM		 4455 res = wpas_p2p_listen_start(wpa_s, timeout * 1000);
4456 if (res == 0 && timeout * 1000 > wpa_s->max_remain_on_chan) {
11fb02be 4457 wpa_s->p2p_long_listen = timeout * 1000;
b22128ef
JM		 4458 eloop_register_timeout(timeout, 0,
4459 wpas_p2p_long_listen_timeout,
4460 wpa_s, NULL);
4461 }
4462
4463 return res;
4464}
4465
4466
4c08c0bd 4467int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
b22128ef
JM		 4468 u8 *buf, size_t len, int p2p_group)
4469{
4c08c0bd
JM		 4470 struct wpabuf *p2p_ie;
4471 int ret;
4472
b22128ef
JM		 4473 if (wpa_s->global->p2p_disabled)
4474 return -1;
4475 if (wpa_s->global->p2p == NULL)
4476 return -1;
e1f1509b
JM		 4477 if (bss == NULL)
4478 return -1;
b22128ef 4479
4c08c0bd
JM		 4480 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
4481 ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
4482 p2p_group, p2p_ie);
4483 wpabuf_free(p2p_ie);
4484
4485 return ret;
b22128ef
JM		 4486}
4487
4488
4489int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
04a85e44 4490 const u8 *dst, const u8 *bssid,
baf513d6 4491 const u8 *ie, size_t ie_len, int ssi_signal)
b22128ef
JM		 4492{
4493 if (wpa_s->global->p2p_disabled)
4494 return 0;
4495 if (wpa_s->global->p2p == NULL)
4496 return 0;
4497
2d43d37f
JB		 4498 switch (p2p_probe_req_rx(wpa_s->global->p2p, addr, dst, bssid,
4499 ie, ie_len)) {
4500 case P2P_PREQ_NOT_P2P:
4501 wpas_notify_preq(wpa_s, addr, dst, bssid, ie, ie_len,
4502 ssi_signal);
4503 /* fall through */
4504 case P2P_PREQ_MALFORMED:
4505 case P2P_PREQ_NOT_LISTEN:
4506 case P2P_PREQ_NOT_PROCESSED:
4507 default: /* make gcc happy */
4508 return 0;
4509 case P2P_PREQ_PROCESSED:
4510 return 1;
4511 }
b22128ef
JM		 4512}
4513
4514
4515void wpas_p2p_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
4516 const u8 *sa, const u8 *bssid,
4517 u8 category, const u8 *data, size_t len, int freq)
4518{
4519 if (wpa_s->global->p2p_disabled)
4520 return;
4521 if (wpa_s->global->p2p == NULL)
4522 return;
4523
4524 p2p_rx_action(wpa_s->global->p2p, da, sa, bssid, category, data, len,
4525 freq);
4526}
4527
4528
4529void wpas_p2p_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ies)
4530{
4531 if (wpa_s->global->p2p_disabled)
4532 return;
4533 if (wpa_s->global->p2p == NULL)
4534 return;
4535
6d92fa6e 4536 p2p_scan_ie(wpa_s->global->p2p, ies, NULL);
b22128ef
JM		 4537}
4538
4539
4540void wpas_p2p_group_deinit(struct wpa_supplicant *wpa_s)
4541{
4542 p2p_group_deinit(wpa_s->p2p_group);
4543 wpa_s->p2p_group = NULL;
a7fd39bb
JD		 4544
4545 wpa_s->ap_configured_cb = NULL;
4546 wpa_s->ap_configured_cb_ctx = NULL;
4547 wpa_s->ap_configured_cb_data = NULL;
4548 wpa_s->connect_without_scan = NULL;
b22128ef
JM		 4549}
4550
4551
4552int wpas_p2p_reject(struct wpa_supplicant *wpa_s, const u8 *addr)
4553{
4554 wpa_s->p2p_long_listen = 0;
4555
3ac17eba
JM		 4556 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4557 return wpa_drv_p2p_reject(wpa_s, addr);
4558
9526fd29
JM		 4559 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4560 return -1;
4561
b22128ef
JM		 4562 return p2p_reject(wpa_s->global->p2p, addr);
4563}
4564
4565
4566/* Invite to reinvoke a persistent group */
4567int wpas_p2p_invite(struct wpa_supplicant *wpa_s, const u8 *peer_addr,
4d32c0c4
JM		 4568 struct wpa_ssid *ssid, const u8 *go_dev_addr, int freq,
4569 int ht40)
b22128ef
JM		 4570{
4571 enum p2p_invite_role role;
4572 u8 *bssid = NULL;
4573
4d32c0c4
JM		 4574 wpa_s->p2p_persistent_go_freq = freq;
4575 wpa_s->p2p_go_ht40 = !!ht40;
b22128ef
JM		 4576 if (ssid->mode == WPAS_MODE_P2P_GO) {
4577 role = P2P_INVITE_ROLE_GO;
4578 if (peer_addr == NULL) {
4579 wpa_printf(MSG_DEBUG, "P2P: Missing peer "
4580 "address in invitation command");
4581 return -1;
4582 }
4583 if (wpas_p2p_create_iface(wpa_s)) {
4584 if (wpas_p2p_add_group_interface(wpa_s,
4585 WPA_IF_P2P_GO) < 0) {
4586 wpa_printf(MSG_ERROR, "P2P: Failed to "
4587 "allocate a new interface for the "
4588 "group");
4589 return -1;
4590 }
4591 bssid = wpa_s->pending_interface_addr;
4592 } else
4593 bssid = wpa_s->own_addr;
4594 } else {
4595 role = P2P_INVITE_ROLE_CLIENT;
4596 peer_addr = ssid->bssid;
4597 }
4598 wpa_s->pending_invite_ssid_id = ssid->id;
4599
3ac17eba
JM		 4600 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4601 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4602 ssid->ssid, ssid->ssid_len,
4603 go_dev_addr, 1);
4604
9526fd29
JM		 4605 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4606 return -1;
4607
b22128ef 4608 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
4d32c0c4 4609 ssid->ssid, ssid->ssid_len, freq, go_dev_addr, 1);
b22128ef
JM		 4610}
4611
4612
4613/* Invite to join an active group */
4614int wpas_p2p_invite_group(struct wpa_supplicant *wpa_s, const char *ifname,
4615 const u8 *peer_addr, const u8 *go_dev_addr)
4616{
4617 struct wpa_global *global = wpa_s->global;
4618 enum p2p_invite_role role;
4619 u8 *bssid = NULL;
4620 struct wpa_ssid *ssid;
c427ac92 4621 int persistent;
b22128ef 4622
4d32c0c4
JM		 4623 wpa_s->p2p_persistent_go_freq = 0;
4624 wpa_s->p2p_go_ht40 = 0;
4625
b22128ef
JM		 4626 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
4627 if (os_strcmp(wpa_s->ifname, ifname) == 0)
4628 break;
4629 }
4630 if (wpa_s == NULL) {
4631 wpa_printf(MSG_DEBUG, "P2P: Interface '%s' not found", ifname);
4632 return -1;
4633 }
4634
4635 ssid = wpa_s->current_ssid;
4636 if (ssid == NULL) {
4637 wpa_printf(MSG_DEBUG, "P2P: No current SSID to use for "
4638 "invitation");
4639 return -1;
4640 }
4641
c427ac92
JM		 4642 persistent = ssid->p2p_persistent_group &&
4643 wpas_p2p_get_persistent(wpa_s->parent, peer_addr,
4644 ssid->ssid, ssid->ssid_len);
4645
b22128ef
JM		 4646 if (ssid->mode == WPAS_MODE_P2P_GO) {
4647 role = P2P_INVITE_ROLE_ACTIVE_GO;
4648 bssid = wpa_s->own_addr;
4649 if (go_dev_addr == NULL)
d7e70476 4650 go_dev_addr = wpa_s->global->p2p_dev_addr;
b22128ef
JM		 4651 } else {
4652 role = P2P_INVITE_ROLE_CLIENT;
4653 if (wpa_s->wpa_state < WPA_ASSOCIATED) {
4654 wpa_printf(MSG_DEBUG, "P2P: Not associated - cannot "
4655 "invite to current group");
4656 return -1;
4657 }
4658 bssid = wpa_s->bssid;
4659 if (go_dev_addr == NULL &&
4660 !is_zero_ether_addr(wpa_s->go_dev_addr))
4661 go_dev_addr = wpa_s->go_dev_addr;
4662 }
bb79dc72 4663 wpa_s->parent->pending_invite_ssid_id = -1;
b22128ef 4664
3ac17eba
JM		 4665 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4666 return wpa_drv_p2p_invite(wpa_s, peer_addr, role, bssid,
4667 ssid->ssid, ssid->ssid_len,
c427ac92 4668 go_dev_addr, persistent);
3ac17eba 4669
9526fd29
JM		 4670 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4671 return -1;
4672
b22128ef 4673 return p2p_invite(wpa_s->global->p2p, peer_addr, role, bssid,
d9d6a58c 4674 ssid->ssid, ssid->ssid_len, wpa_s->assoc_freq,
c427ac92 4675 go_dev_addr, persistent);
b22128ef
JM		 4676}
4677
4678
4679void wpas_p2p_completed(struct wpa_supplicant *wpa_s)
4680{
4681 struct wpa_ssid *ssid = wpa_s->current_ssid;
4682 const char *ssid_txt;
4683 u8 go_dev_addr[ETH_ALEN];
4b6baa2f 4684 int network_id = -1;
b22128ef 4685 int persistent;
b49d6ccb 4686 int freq;
b22128ef 4687
73ccd083
JM		 4688 if (ssid == NULL || ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION) {
4689 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
4690 wpa_s->parent, NULL);
4691 }
361cdf34 4692
b22128ef 4693 if (!wpa_s->show_group_started || !ssid)
99fcd404 4694 goto done;
b22128ef
JM		 4695
4696 wpa_s->show_group_started = 0;
4697
4698 ssid_txt = wpa_ssid_txt(ssid->ssid, ssid->ssid_len);
4699 os_memset(go_dev_addr, 0, ETH_ALEN);
4700 if (ssid->bssid_set)
4701 os_memcpy(go_dev_addr, ssid->bssid, ETH_ALEN);
4702 persistent = wpas_p2p_persistent_group(wpa_s, go_dev_addr, ssid->ssid,
4703 ssid->ssid_len);
4704 os_memcpy(wpa_s->go_dev_addr, go_dev_addr, ETH_ALEN);
4705
a0a9f3b0
JM		 4706 if (wpa_s->global->p2p_group_formation == wpa_s)
4707 wpa_s->global->p2p_group_formation = NULL;
4708
b49d6ccb
JJ		 4709 freq = wpa_s->current_bss ? wpa_s->current_bss->freq :
4710 (int) wpa_s->assoc_freq;
b22128ef
JM		 4711 if (ssid->passphrase == NULL && ssid->psk_set) {
4712 char psk[65];
4713 wpa_snprintf_hex(psk, sizeof(psk), ssid->psk, 32);
4714 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 4715 "%s client ssid=\"%s\" freq=%d psk=%s go_dev_addr="
4716 MACSTR "%s",
b49d6ccb 4717 wpa_s->ifname, ssid_txt, freq, psk,
c481048f 4718 MAC2STR(go_dev_addr),
b22128ef
JM		 4719 persistent ? " [PERSISTENT]" : "");
4720 } else {
4721 wpa_msg(wpa_s->parent, MSG_INFO, P2P_EVENT_GROUP_STARTED
c481048f
AC		 4722 "%s client ssid=\"%s\" freq=%d passphrase=\"%s\" "
4723 "go_dev_addr=" MACSTR "%s",
b49d6ccb 4724 wpa_s->ifname, ssid_txt, freq,
b22128ef
JM		 4725 ssid->passphrase ? ssid->passphrase : "",
4726 MAC2STR(go_dev_addr),
4727 persistent ? " [PERSISTENT]" : "");
4728 }
4729
4730 if (persistent)
4b6baa2f
JMB		 4731 network_id = wpas_p2p_store_persistent_group(wpa_s->parent,
4732 ssid, go_dev_addr);
4733 if (network_id < 0)
4734 network_id = ssid->id;
4735 wpas_notify_p2p_group_started(wpa_s, ssid, network_id, 1);
99fcd404
JM		 4736
4737done:
e665ca9a 4738 if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
99fcd404 4739 wpa_s->global->p2p != NULL) {
e665ca9a 4740 wpa_s->global->p2p_cb_on_scan_complete = 0;
99fcd404
JM		 4741 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
4742 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
4743 "continued after successful connection");
4744 p2p_increase_search_delay(
4745 wpa_s->global->p2p,
4746 wpas_p2p_search_delay(wpa_s));
4747 }
4748 }
b22128ef
JM		 4749}
4750
4751
4752int wpas_p2p_presence_req(struct wpa_supplicant *wpa_s, u32 duration1,
4753 u32 interval1, u32 duration2, u32 interval2)
4754{
3ac17eba
JM		 4755 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4756 return -1;
9526fd29
JM		 4757 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4758 return -1;
3ac17eba 4759
b22128ef
JM		 4760 if (wpa_s->wpa_state < WPA_ASSOCIATED ||
4761 wpa_s->current_ssid == NULL ||
4762 wpa_s->current_ssid->mode != WPAS_MODE_INFRA)
4763 return -1;
4764
4765 return p2p_presence_req(wpa_s->global->p2p, wpa_s->bssid,
4766 wpa_s->own_addr, wpa_s->assoc_freq,
4767 duration1, interval1, duration2, interval2);
4768}
4769
4770
4771int wpas_p2p_ext_listen(struct wpa_supplicant *wpa_s, unsigned int period,
4772 unsigned int interval)
4773{
3ac17eba
JM		 4774 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4775 return -1;
4776
9526fd29
JM		 4777 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
4778 return -1;
4779
b22128ef
JM		 4780 return p2p_ext_listen(wpa_s->global->p2p, period, interval);
4781}
4782
4783
c8106615
JM		 4784static int wpas_p2p_is_client(struct wpa_supplicant *wpa_s)
4785{
5fbddfdc
JM		 4786 if (wpa_s->current_ssid == NULL) {
4787 /*
c7deed74 4788 * current_ssid can be cleared when P2P client interface gets
5fbddfdc
JM		 4789 * disconnected, so assume this interface was used as P2P
4790 * client.
4791 */
4792 return 1;
4793 }
4794 return wpa_s->current_ssid->p2p_group &&
c8106615
JM		 4795 wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
4796}
4797
4798
3071e181
JM		 4799static void wpas_p2p_group_idle_timeout(void *eloop_ctx, void *timeout_ctx)
4800{
4801 struct wpa_supplicant *wpa_s = eloop_ctx;
4802
c8106615 4803 if (wpa_s->conf->p2p_group_idle == 0 && !wpas_p2p_is_client(wpa_s)) {
3071e181
JM		 4804 wpa_printf(MSG_DEBUG, "P2P: Ignore group idle timeout - "
4805 "disabled");
4806 return;
4807 }
4808
4809 wpa_printf(MSG_DEBUG, "P2P: Group idle timeout reached - terminate "
4810 "group");
8dba4aef 4811 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_IDLE_TIMEOUT);
3071e181
JM		 4812}
4813
4814
4815static void wpas_p2p_set_group_idle_timeout(struct wpa_supplicant *wpa_s)
4816{
5f482d55 4817 int timeout;
c8106615 4818
dddc7045
JM		 4819 if (eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
4820 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
4821
c8106615 4822 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
3071e181
JM		 4823 return;
4824
c8106615
JM		 4825 timeout = wpa_s->conf->p2p_group_idle;
4826 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
4827 (timeout == 0 || timeout > P2P_MAX_CLIENT_IDLE))
4828 timeout = P2P_MAX_CLIENT_IDLE;
4829
4830 if (timeout == 0)
3071e181
JM		 4831 return;
4832
5f482d55
JM		 4833 if (timeout < 0) {
4834 if (wpa_s->current_ssid->mode == WPAS_MODE_INFRA)
4835 timeout = 0; /* special client mode no-timeout */
4836 else
4837 return;
4838 }
4839
8c472816
JM		 4840 if (wpa_s->p2p_in_provisioning) {
4841 /*
4842 * Use the normal group formation timeout during the
4843 * provisioning phase to avoid terminating this process too
4844 * early due to group idle timeout.
4845 */
4846 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4847 "during provisioning");
4848 return;
4849 }
4850
361cdf34
JM		 4851 if (wpa_s->show_group_started) {
4852 /*
4853 * Use the normal group formation timeout between the end of
4854 * the provisioning phase and completion of 4-way handshake to
4855 * avoid terminating this process too early due to group idle
4856 * timeout.
4857 */
4858 wpa_printf(MSG_DEBUG, "P2P: Do not use P2P group idle timeout "
4859 "while waiting for initial 4-way handshake to "
4860 "complete");
4861 return;
4862 }
4863
3071e181 4864 wpa_printf(MSG_DEBUG, "P2P: Set P2P group idle timeout to %u seconds",
c8106615
JM		 4865 timeout);
4866 eloop_register_timeout(timeout, 0, wpas_p2p_group_idle_timeout,
4867 wpa_s, NULL);
3071e181
JM		 4868}
4869
4870
0aadd568
JM		 4871/* Returns 1 if the interface was removed */
4872int wpas_p2p_deauth_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
4873 u16 reason_code, const u8 *ie, size_t ie_len,
4874 int locally_generated)
b22128ef 4875{
9526fd29 4876 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
0aadd568 4877 return 0;
3ac17eba 4878 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
0aadd568 4879 return 0;
b22128ef 4880
3fc14102
JM		 4881 if (!locally_generated)
4882 p2p_deauth_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4883 ie_len);
4884
4885 if (reason_code == WLAN_REASON_DEAUTH_LEAVING && !locally_generated &&
4886 wpa_s->current_ssid &&
4887 wpa_s->current_ssid->p2p_group &&
4888 wpa_s->current_ssid->mode == WPAS_MODE_INFRA) {
4889 wpa_printf(MSG_DEBUG, "P2P: GO indicated that the P2P Group "
4890 "session is ending");
0aadd568
JM		 4891 if (wpas_p2p_group_delete(wpa_s,
4892 P2P_GROUP_REMOVAL_GO_ENDING_SESSION)
4893 > 0)
4894 return 1;
3fc14102 4895 }
0aadd568
JM		 4896
4897 return 0;
b22128ef
JM		 4898}
4899
4900
4901void wpas_p2p_disassoc_notif(struct wpa_supplicant *wpa_s, const u8 *bssid,
3fc14102
JM		 4902 u16 reason_code, const u8 *ie, size_t ie_len,
4903 int locally_generated)
b22128ef 4904{
9526fd29 4905 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
b22128ef 4906 return;
3ac17eba
JM		 4907 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
4908 return;
b22128ef 4909
3fc14102
JM		 4910 if (!locally_generated)
4911 p2p_disassoc_notif(wpa_s->global->p2p, bssid, reason_code, ie,
4912 ie_len);
b22128ef
JM		 4913}
4914
4915
4916void wpas_p2p_update_config(struct wpa_supplicant *wpa_s)
4917{
4918 struct p2p_data *p2p = wpa_s->global->p2p;
4919
4920 if (p2p == NULL)
4921 return;
4922
4c010834
KL		 4923 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE))
4924 return;
4925
b22128ef
JM		 4926 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_NAME)
4927 p2p_set_dev_name(p2p, wpa_s->conf->device_name);
4928
2f646b6e
JB		 4929 if (wpa_s->conf->changed_parameters & CFG_CHANGED_DEVICE_TYPE)
4930 p2p_set_pri_dev_type(p2p, wpa_s->conf->device_type);
b22128ef 4931
b6e01800
JM		 4932 if (wpa_s->wps &&
4933 (wpa_s->conf->changed_parameters & CFG_CHANGED_CONFIG_METHODS))
4934 p2p_set_config_methods(p2p, wpa_s->wps->config_methods);
4935
4936 if (wpa_s->wps && (wpa_s->conf->changed_parameters & CFG_CHANGED_UUID))
4937 p2p_set_uuid(p2p, wpa_s->wps->uuid);
4938
4939 if (wpa_s->conf->changed_parameters & CFG_CHANGED_WPS_STRING) {
4940 p2p_set_manufacturer(p2p, wpa_s->conf->manufacturer);
4941 p2p_set_model_name(p2p, wpa_s->conf->model_name);
4942 p2p_set_model_number(p2p, wpa_s->conf->model_number);
4943 p2p_set_serial_number(p2p, wpa_s->conf->serial_number);
4944 }
4945
2f646b6e
JB		 4946 if (wpa_s->conf->changed_parameters & CFG_CHANGED_SEC_DEVICE_TYPE)
4947 p2p_set_sec_dev_types(p2p,
4948 (void *) wpa_s->conf->sec_device_type,
4949 wpa_s->conf->num_sec_device_types);
b22128ef 4950
f95cac27
JMB		 4951 if (wpa_s->conf->changed_parameters & CFG_CHANGED_VENDOR_EXTENSION) {
4952 int i;
4953 p2p_remove_wps_vendor_extensions(p2p);
4954 for (i = 0; i < MAX_WPS_VENDOR_EXT; i++) {
4955 if (wpa_s->conf->wps_vendor_ext[i] == NULL)
4956 continue;
4957 p2p_add_wps_vendor_extension(
4958 p2p, wpa_s->conf->wps_vendor_ext[i]);
4959 }
4960 }
4961
b22128ef
JM		 4962 if ((wpa_s->conf->changed_parameters & CFG_CHANGED_COUNTRY) &&
4963 wpa_s->conf->country[0] && wpa_s->conf->country[1]) {
4964 char country[3];
4965 country[0] = wpa_s->conf->country[0];
4966 country[1] = wpa_s->conf->country[1];
4967 country[2] = 0x04;
4968 p2p_set_country(p2p, country);
4969 }
4970
4971 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_SSID_POSTFIX) {
4972 p2p_set_ssid_postfix(p2p, (u8 *) wpa_s->conf->p2p_ssid_postfix,
4973 wpa_s->conf->p2p_ssid_postfix ?
4974 os_strlen(wpa_s->conf->p2p_ssid_postfix) :
4975 0);
4976 }
0f66abd2
SS		 4977
4978 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_INTRA_BSS)
4979 p2p_set_intra_bss_dist(p2p, wpa_s->conf->p2p_intra_bss);
2463ba70
JS		 4980
4981 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_LISTEN_CHANNEL) {
4982 u8 reg_class, channel;
4983 int ret;
4984 unsigned int r;
4985 if (wpa_s->conf->p2p_listen_reg_class &&
4986 wpa_s->conf->p2p_listen_channel) {
4987 reg_class = wpa_s->conf->p2p_listen_reg_class;
4988 channel = wpa_s->conf->p2p_listen_channel;
4989 } else {
4990 reg_class = 81;
4991 /*
4992 * Pick one of the social channels randomly as the
4993 * listen channel.
4994 */
4995 os_get_random((u8 *) &r, sizeof(r));
4996 channel = 1 + (r % 3) * 5;
4997 }
4998 ret = p2p_set_listen_channel(p2p, reg_class, channel);
4999 if (ret)
5000 wpa_printf(MSG_ERROR, "P2P: Own listen channel update "
5001 "failed: %d", ret);
5002 }
5003 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_OPER_CHANNEL) {
5004 u8 op_reg_class, op_channel, cfg_op_channel;
5005 int ret = 0;
5006 unsigned int r;
5007 if (wpa_s->conf->p2p_oper_reg_class &&
5008 wpa_s->conf->p2p_oper_channel) {
5009 op_reg_class = wpa_s->conf->p2p_oper_reg_class;
5010 op_channel = wpa_s->conf->p2p_oper_channel;
5011 cfg_op_channel = 1;
5012 } else {
5013 op_reg_class = 81;
5014 /*
5015 * Use random operation channel from (1, 6, 11)
5016 *if no other preference is indicated.
5017 */
5018 os_get_random((u8 *) &r, sizeof(r));
5019 op_channel = 1 + (r % 3) * 5;
5020 cfg_op_channel = 0;
5021 }
5022 ret = p2p_set_oper_channel(p2p, op_reg_class, op_channel,
5023 cfg_op_channel);
5024 if (ret)
5025 wpa_printf(MSG_ERROR, "P2P: Own oper channel update "
5026 "failed: %d", ret);
5027 }
21d996f7
JM		 5028
5029 if (wpa_s->conf->changed_parameters & CFG_CHANGED_P2P_PREF_CHAN) {
5030 if (p2p_set_pref_chan(p2p, wpa_s->conf->num_p2p_pref_chan,
5031 wpa_s->conf->p2p_pref_chan) < 0) {
5032 wpa_printf(MSG_ERROR, "P2P: Preferred channel list "
5033 "update failed");
5034 }
5035 }
b22128ef 5036}
aefb53bd
JM		 5037
5038
5039int wpas_p2p_set_noa(struct wpa_supplicant *wpa_s, u8 count, int start,
5040 int duration)
5041{
5042 if (!wpa_s->ap_iface)
5043 return -1;
5044 return hostapd_p2p_set_noa(wpa_s->ap_iface->bss[0], count, start,
5045 duration);
5046}
72044390
JM		 5047
5048
5049int wpas_p2p_set_cross_connect(struct wpa_supplicant *wpa_s, int enabled)
5050{
9526fd29 5051 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
72044390
JM		 5052 return -1;
5053 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT)
5054 return -1;
5055
5056 wpa_s->global->cross_connection = enabled;
5057 p2p_set_cross_connect(wpa_s->global->p2p, enabled);
5058
5059 if (!enabled) {
5060 struct wpa_supplicant *iface;
5061
5062 for (iface = wpa_s->global->ifaces; iface; iface = iface->next)
5063 {
5064 if (iface->cross_connect_enabled == 0)
5065 continue;
5066
5067 iface->cross_connect_enabled = 0;
5068 iface->cross_connect_in_use = 0;
5069 wpa_msg(iface->parent, MSG_INFO,
5070 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
5071 iface->ifname, iface->cross_connect_uplink);
5072 }
5073 }
5074
5075 return 0;
5076}
5077
5078
5079static void wpas_p2p_enable_cross_connect(struct wpa_supplicant *uplink)
5080{
5081 struct wpa_supplicant *iface;
5082
5083 if (!uplink->global->cross_connection)
5084 return;
5085
5086 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
5087 if (!iface->cross_connect_enabled)
5088 continue;
5089 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
5090 0)
5091 continue;
5092 if (iface->ap_iface == NULL)
5093 continue;
5094 if (iface->cross_connect_in_use)
5095 continue;
5096
5097 iface->cross_connect_in_use = 1;
5098 wpa_msg(iface->parent, MSG_INFO,
5099 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
5100 iface->ifname, iface->cross_connect_uplink);
5101 }
5102}
5103
5104
5105static void wpas_p2p_disable_cross_connect(struct wpa_supplicant *uplink)
5106{
5107 struct wpa_supplicant *iface;
5108
5109 for (iface = uplink->global->ifaces; iface; iface = iface->next) {
5110 if (!iface->cross_connect_enabled)
5111 continue;
5112 if (os_strcmp(uplink->ifname, iface->cross_connect_uplink) !=
5113 0)
5114 continue;
5115 if (!iface->cross_connect_in_use)
5116 continue;
5117
5118 wpa_msg(iface->parent, MSG_INFO,
5119 P2P_EVENT_CROSS_CONNECT_DISABLE "%s %s",
5120 iface->ifname, iface->cross_connect_uplink);
5121 iface->cross_connect_in_use = 0;
5122 }
5123}
5124
5125
5126void wpas_p2p_notif_connected(struct wpa_supplicant *wpa_s)
5127{
5128 if (wpa_s->ap_iface || wpa_s->current_ssid == NULL ||
5129 wpa_s->current_ssid->mode != WPAS_MODE_INFRA ||
5130 wpa_s->cross_connect_disallowed)
5131 wpas_p2p_disable_cross_connect(wpa_s);
5132 else
5133 wpas_p2p_enable_cross_connect(wpa_s);
dddc7045
JM		 5134 if (!wpa_s->ap_iface &&
5135 eloop_cancel_timeout(wpas_p2p_group_idle_timeout, wpa_s, NULL) > 0)
5136 wpa_printf(MSG_DEBUG, "P2P: Cancelled P2P group idle timeout");
72044390
JM		 5137}
5138
5139
5140void wpas_p2p_notif_disconnected(struct wpa_supplicant *wpa_s)
5141{
5142 wpas_p2p_disable_cross_connect(wpa_s);
4c2c6751
JM		 5143 if (!wpa_s->ap_iface &&
5144 !eloop_is_timeout_registered(wpas_p2p_group_idle_timeout,
5145 wpa_s, NULL))
3071e181 5146 wpas_p2p_set_group_idle_timeout(wpa_s);
72044390
JM		 5147}
5148
5149
5150static void wpas_p2p_cross_connect_setup(struct wpa_supplicant *wpa_s)
5151{
5152 struct wpa_supplicant *iface;
5153
5154 if (!wpa_s->global->cross_connection)
5155 return;
5156
5157 for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
5158 if (iface == wpa_s)
5159 continue;
5160 if (iface->drv_flags &
5161 WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)
5162 continue;
5163 if (iface->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE)
5164 continue;
5165
5166 wpa_s->cross_connect_enabled = 1;
5167 os_strlcpy(wpa_s->cross_connect_uplink, iface->ifname,
5168 sizeof(wpa_s->cross_connect_uplink));
5169 wpa_printf(MSG_DEBUG, "P2P: Enable cross connection from "
5170 "%s to %s whenever uplink is available",
5171 wpa_s->ifname, wpa_s->cross_connect_uplink);
5172
5173 if (iface->ap_iface || iface->current_ssid == NULL ||
5174 iface->current_ssid->mode != WPAS_MODE_INFRA ||
5175 iface->cross_connect_disallowed ||
5176 iface->wpa_state != WPA_COMPLETED)
5177 break;
5178
5179 wpa_s->cross_connect_in_use = 1;
5180 wpa_msg(wpa_s->parent, MSG_INFO,
5181 P2P_EVENT_CROSS_CONNECT_ENABLE "%s %s",
5182 wpa_s->ifname, wpa_s->cross_connect_uplink);
5183 break;
5184 }
5185}
b73bf0a7
JM		 5186
5187
5188int wpas_p2p_notif_pbc_overlap(struct wpa_supplicant *wpa_s)
5189{
5190 if (wpa_s->p2p_group_interface != P2P_GROUP_INTERFACE_CLIENT &&
5191 !wpa_s->p2p_in_provisioning)
5192 return 0; /* not P2P client operation */
5193
5194 wpa_printf(MSG_DEBUG, "P2P: Terminate connection due to WPS PBC "
5195 "session overlap");
148bb37f
JM		 5196 if (wpa_s != wpa_s->parent)
5197 wpa_msg_ctrl(wpa_s->parent, MSG_INFO, WPS_EVENT_OVERLAP);
0a14e3ec
SS		 5198
5199 if (wpa_s->global->p2p)
5200 p2p_group_formation_failed(wpa_s->global->p2p);
5201
5202 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5203 wpa_s->parent, NULL);
5204
b73bf0a7
JM		 5205 wpas_group_formation_completed(wpa_s, 0);
5206 return 1;
5207}
b5c9da8d
JM		 5208
5209
5210void wpas_p2p_update_channel_list(struct wpa_supplicant *wpa_s)
5211{
5212 struct p2p_channels chan;
5213
5214 if (wpa_s->global == NULL || wpa_s->global->p2p == NULL)
5215 return;
5216
5217 os_memset(&chan, 0, sizeof(chan));
5218 if (wpas_p2p_setup_channels(wpa_s, &chan)) {
5219 wpa_printf(MSG_ERROR, "P2P: Failed to update supported "
5220 "channel list");
5221 return;
5222 }
5223
5224 p2p_update_channel_list(wpa_s->global->p2p, &chan);
5225}
59eba7a2
JM		 5226
5227
50178335
JM		 5228static void wpas_p2p_scan_res_ignore(struct wpa_supplicant *wpa_s,
5229 struct wpa_scan_results *scan_res)
5230{
5231 wpa_printf(MSG_DEBUG, "P2P: Ignore scan results");
5232}
5233
5234
59eba7a2
JM		 5235int wpas_p2p_cancel(struct wpa_supplicant *wpa_s)
5236{
5237 struct wpa_global *global = wpa_s->global;
5238 int found = 0;
231bbd03 5239 const u8 *peer;
59eba7a2 5240
9526fd29
JM		 5241 if (global->p2p == NULL)
5242 return -1;
5243
59eba7a2
JM		 5244 wpa_printf(MSG_DEBUG, "P2P: Request to cancel group formation");
5245
5246 if (wpa_s->pending_interface_name[0] &&
5247 !is_zero_ether_addr(wpa_s->pending_interface_addr))
5248 found = 1;
5249
231bbd03
SS		 5250 peer = p2p_get_go_neg_peer(global->p2p);
5251 if (peer) {
5252 wpa_printf(MSG_DEBUG, "P2P: Unauthorize pending GO Neg peer "
5253 MACSTR, MAC2STR(peer));
5254 p2p_unauthorize(global->p2p, peer);
75c208b9 5255 found = 1;
231bbd03
SS		 5256 }
5257
50178335
JM		 5258 if (wpa_s->scan_res_handler == wpas_p2p_scan_res_join) {
5259 wpa_printf(MSG_DEBUG, "P2P: Stop pending scan for join");
5260 wpa_s->scan_res_handler = wpas_p2p_scan_res_ignore;
5261 found = 1;
5262 }
5263
5264 if (wpa_s->pending_pd_before_join) {
5265 wpa_printf(MSG_DEBUG, "P2P: Stop pending PD before join");
5266 wpa_s->pending_pd_before_join = 0;
5267 found = 1;
5268 }
5269
59eba7a2
JM		 5270 wpas_p2p_stop_find(wpa_s);
5271
5272 for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
5273 if (wpa_s == global->p2p_group_formation &&
a0a9f3b0
JM		 5274 (wpa_s->p2p_in_provisioning ||
5275 wpa_s->parent->pending_interface_type ==
5276 WPA_IF_P2P_CLIENT)) {
59eba7a2
JM		 5277 wpa_printf(MSG_DEBUG, "P2P: Interface %s in group "
5278 "formation found - cancelling",
5279 wpa_s->ifname);
5280 found = 1;
45fee6f0
SS		 5281 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5282 wpa_s->parent, NULL);
30b80389
JM		 5283 if (wpa_s->p2p_in_provisioning) {
5284 wpas_group_formation_completed(wpa_s, 0);
5285 break;
5286 }
8dba4aef
JM		 5287 wpas_p2p_group_delete(wpa_s,
5288 P2P_GROUP_REMOVAL_REQUESTED);
59eba7a2
JM		 5289 break;
5290 }
5291 }
5292
5293 if (!found) {
5294 wpa_printf(MSG_DEBUG, "P2P: No ongoing group formation found");
5295 return -1;
5296 }
5297
5298 return 0;
5299}
c973f386
JM		 5300
5301
5302void wpas_p2p_interface_unavailable(struct wpa_supplicant *wpa_s)
5303{
5304 if (wpa_s->current_ssid == NULL || !wpa_s->current_ssid->p2p_group)
5305 return;
5306
5307 wpa_printf(MSG_DEBUG, "P2P: Remove group due to driver resource not "
5308 "being available anymore");
8dba4aef 5309 wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_UNAVAILABLE);
c973f386 5310}
7cfc4ac3
AGS		 5311
5312
5313void wpas_p2p_update_best_channels(struct wpa_supplicant *wpa_s,
5314 int freq_24, int freq_5, int freq_overall)
5315{
5316 struct p2p_data *p2p = wpa_s->global->p2p;
5317 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5318 return;
5319 p2p_set_best_channels(p2p, freq_24, freq_5, freq_overall);
5320}
9d562b79
SS		 5321
5322
5323int wpas_p2p_unauthorize(struct wpa_supplicant *wpa_s, const char *addr)
5324{
5325 u8 peer[ETH_ALEN];
5326 struct p2p_data *p2p = wpa_s->global->p2p;
5327
5328 if (p2p == NULL || (wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_MGMT))
5329 return -1;
5330
5331 if (hwaddr_aton(addr, peer))
5332 return -1;
5333
5334 return p2p_unauthorize(p2p, peer);
5335}
3103f345
JB		 5336
5337
5338/**
5339 * wpas_p2p_disconnect - Disconnect from a P2P Group
5340 * @wpa_s: Pointer to wpa_supplicant data
5341 * Returns: 0 on success, -1 on failure
5342 *
5343 * This can be used to disconnect from a group in which the local end is a P2P
5344 * Client or to end a P2P Group in case the local end is the Group Owner. If a
5345 * virtual network interface was created for this group, that interface will be
5346 * removed. Otherwise, only the configured P2P group network will be removed
5347 * from the interface.
5348 */
5349int wpas_p2p_disconnect(struct wpa_supplicant *wpa_s)
5350{
5351
5352 if (wpa_s == NULL)
5353 return -1;
5354
0aadd568
JM		 5355 return wpas_p2p_group_delete(wpa_s, P2P_GROUP_REMOVAL_REQUESTED) < 0 ?
5356 -1 : 0;
3103f345 5357}
303f60d3
JM		 5358
5359
5360int wpas_p2p_in_progress(struct wpa_supplicant *wpa_s)
5361{
5362 if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
5363 return 0;
5364
5365 return p2p_in_progress(wpa_s->global->p2p);
5366}
502618f7
JM		 5367
5368
5369void wpas_p2p_network_removed(struct wpa_supplicant *wpa_s,
5370 struct wpa_ssid *ssid)
502618f7
JM		 5371{
5372 if (wpa_s->p2p_in_provisioning && ssid->p2p_group &&
5373 eloop_cancel_timeout(wpas_p2p_group_formation_timeout,
5374 wpa_s->parent, NULL) > 0) {
eb6f8c2b
AC		 5375 /**
5376 * Remove the network by scheduling the group formation
5377 * timeout to happen immediately. The teardown code
5378 * needs to be scheduled to run asynch later so that we
5379 * don't delete data from under ourselves unexpectedly.
5380 * Calling wpas_p2p_group_formation_timeout directly
5381 * causes a series of crashes in WPS failure scenarios.
5382 */
502618f7
JM		 5383 wpa_printf(MSG_DEBUG, "P2P: Canceled group formation due to "
5384 "P2P group network getting removed");
eb6f8c2b
AC		 5385 eloop_register_timeout(0, 0, wpas_p2p_group_formation_timeout,
5386 wpa_s->parent, NULL);
502618f7
JM		 5387 }
5388}
87f841a1
JM		 5389
5390
5391struct wpa_ssid * wpas_p2p_get_persistent(struct wpa_supplicant *wpa_s,
c427ac92
JM		 5392 const u8 *addr, const u8 *ssid,
5393 size_t ssid_len)
87f841a1
JM		 5394{
5395 struct wpa_ssid *s;
fbdcfd57 5396 size_t i;
87f841a1
JM		 5397
5398 for (s = wpa_s->conf->ssid; s; s = s->next) {
fbdcfd57
JM		 5399 if (s->disabled != 2)
5400 continue;
c427ac92
JM		 5401 if (ssid &&
5402 (ssid_len != s->ssid_len ||
5403 os_memcmp(ssid, s->ssid, ssid_len) != 0))
5404 continue;
fbdcfd57
JM		 5405 if (os_memcmp(s->bssid, addr, ETH_ALEN) == 0)
5406 return s; /* peer is GO in the persistent group */
5407 if (s->mode != WPAS_MODE_P2P_GO || s->p2p_client_list == NULL)
5408 continue;
5409 for (i = 0; i < s->num_p2p_clients; i++) {
5410 if (os_memcmp(s->p2p_client_list + i * ETH_ALEN,
5411 addr, ETH_ALEN) == 0)
5412 return s; /* peer is P2P client in persistent
5413 * group */
5414 }
87f841a1
JM		 5415 }
5416
5417 return NULL;
5418}
fbdcfd57
JM		 5419
5420
5421void wpas_p2p_notify_ap_sta_authorized(struct wpa_supplicant *wpa_s,
5422 const u8 *addr)
5423{
5424 if (addr == NULL)
5425 return;
5426 wpas_p2p_add_persistent_group_client(wpa_s, addr);
5427}
aa9bb764
JM		 5428
5429
5430static void wpas_p2p_fallback_to_go_neg(struct wpa_supplicant *wpa_s,
5431 int group_added)
5432{
5433 struct wpa_supplicant *group = wpa_s;
5434 if (wpa_s->global->p2p_group_formation)
5435 group = wpa_s->global->p2p_group_formation;
5436 wpa_s = wpa_s->parent;
b80eb89d 5437 offchannel_send_action_done(wpa_s);
aa9bb764 5438 if (group_added)
8dba4aef 5439 wpas_p2p_group_delete(group, P2P_GROUP_REMOVAL_SILENT);
aa9bb764
JM		 5440 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Fall back to GO Negotiation");
5441 wpas_p2p_connect(wpa_s, wpa_s->pending_join_dev_addr, wpa_s->p2p_pin,
5442 wpa_s->p2p_wps_method, wpa_s->p2p_persistent_group, 0,
5443 0, 0, wpa_s->p2p_go_intent, wpa_s->p2p_connect_freq,
3bc462cb 5444 wpa_s->p2p_persistent_id,
e2308e4b
RM		 5445 wpa_s->p2p_pd_before_go_neg,
5446 wpa_s->p2p_go_ht40);
aa9bb764
JM		 5447}
5448
5449
5450int wpas_p2p_scan_no_go_seen(struct wpa_supplicant *wpa_s)
5451{
5452 if (!wpa_s->p2p_fallback_to_go_neg ||
5453 wpa_s->p2p_in_provisioning <= 5)
5454 return 0;
5455
b80eb89d
JM		 5456 if (wpas_p2p_peer_go(wpa_s, wpa_s->pending_join_dev_addr) > 0)
5457 return 0; /* peer operating as a GO */
5458
aa9bb764
JM		 5459 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: GO not found for p2p_connect-auto - "
5460 "fallback to GO Negotiation");
5461 wpas_p2p_fallback_to_go_neg(wpa_s, 1);
5462
5463 return 1;
5464}
05a77b3b
JM		 5465
5466
5467unsigned int wpas_p2p_search_delay(struct wpa_supplicant *wpa_s)
5468{
5469 const char *rn, *rn2;
5470 struct wpa_supplicant *ifs;
5471
5472 if (wpa_s->wpa_state > WPA_SCANNING) {
5473 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search delay due to "
5474 "concurrent operation",
5475 P2P_CONCURRENT_SEARCH_DELAY);
5476 return P2P_CONCURRENT_SEARCH_DELAY;
5477 }
5478
5479 if (!wpa_s->driver->get_radio_name)
5480 return 0;
5481 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
5482 if (rn == NULL || rn[0] == '\0')
5483 return 0;
5484
5485 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
5486 if (ifs == wpa_s || !ifs->driver->get_radio_name)
5487 continue;
5488
5489 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
5490 if (!rn2 || os_strcmp(rn, rn2) != 0)
5491 continue;
5492 if (ifs->wpa_state > WPA_SCANNING) {
5493 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Use %u ms search "
5494 "delay due to concurrent operation on "
5495 "interface %s",
5496 P2P_CONCURRENT_SEARCH_DELAY, ifs->ifname);
5497 return P2P_CONCURRENT_SEARCH_DELAY;
5498 }
5499 }
5500
5501 return 0;
5502}
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