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Clarify AP mode Action frame handling
[thirdparty/hostap.git] / wpa_supplicant / dpp_supplicant.c
CommitLineData
be27e185
JM		 1/*
2 * wpa_supplicant - DPP
3 * Copyright (c) 2017, Qualcomm Atheros, Inc.
3b50f8a4 4 * Copyright (c) 2018, The Linux Foundation
be27e185
JM		 5 *
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
8 */
9
10#include "utils/includes.h"
11
12#include "utils/common.h"
30d27b04 13#include "utils/eloop.h"
be27e185 14#include "common/dpp.h"
461d39af
JM		 15#include "common/gas.h"
16#include "common/gas_server.h"
a0d5c56f
JM		 17#include "rsn_supp/wpa.h"
18#include "rsn_supp/pmksa_cache.h"
be27e185 19#include "wpa_supplicant_i.h"
a0d5c56f 20#include "config.h"
30d27b04
JM		 21#include "driver_i.h"
22#include "offchannel.h"
461d39af 23#include "gas_query.h"
a0d5c56f
JM		 24#include "bss.h"
25#include "scan.h"
8528994e 26#include "notify.h"
be27e185
JM		 27#include "dpp_supplicant.h"
28
29
30d27b04
JM		 30static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s,
31 unsigned int freq);
461d39af
JM		 32static void wpas_dpp_reply_wait_timeout(void *eloop_ctx, void *timeout_ctx);
33static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator);
30d27b04
JM		 34static void wpas_dpp_tx_status(struct wpa_supplicant *wpa_s,
35 unsigned int freq, const u8 *dst,
36 const u8 *src, const u8 *bssid,
37 const u8 *data, size_t data_len,
38 enum offchannel_send_action_result result);
f97ace34
JM		 39static void wpas_dpp_init_timeout(void *eloop_ctx, void *timeout_ctx);
40static int wpas_dpp_auth_init_next(struct wpa_supplicant *wpa_s);
00d2d13d
JM		 41static void
42wpas_dpp_tx_pkex_status(struct wpa_supplicant *wpa_s,
43 unsigned int freq, const u8 *dst,
44 const u8 *src, const u8 *bssid,
45 const u8 *data, size_t data_len,
46 enum offchannel_send_action_result result);
30d27b04
JM		 47
48static const u8 broadcast[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
49
85fd8263
JM		 50/* Use a hardcoded Transaction ID 1 in Peer Discovery frames since there is only
51 * a single transaction in progress at any point in time. */
52static const u8 TRANSACTION_ID = 1;
53
30d27b04 54
461d39af
JM		 55static struct dpp_configurator *
56dpp_configurator_get_id(struct wpa_supplicant *wpa_s, unsigned int id)
57{
58 struct dpp_configurator *conf;
59
60 dl_list_for_each(conf, &wpa_s->dpp_configurator,
61 struct dpp_configurator, list) {
62 if (conf->id == id)
63 return conf;
64 }
65 return NULL;
66}
67
68
be27e185
JM		 69static unsigned int wpas_dpp_next_id(struct wpa_supplicant *wpa_s)
70{
71 struct dpp_bootstrap_info *bi;
72 unsigned int max_id = 0;
73
74 dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info,
75 list) {
76 if (bi->id > max_id)
77 max_id = bi->id;
78 }
79 return max_id + 1;
80}
81
82
83/**
84 * wpas_dpp_qr_code - Parse and add DPP bootstrapping info from a QR Code
85 * @wpa_s: Pointer to wpa_supplicant data
86 * @cmd: DPP URI read from a QR Code
87 * Returns: Identifier of the stored info or -1 on failure
88 */
89int wpas_dpp_qr_code(struct wpa_supplicant *wpa_s, const char *cmd)
90{
91 struct dpp_bootstrap_info *bi;
30d27b04 92 struct dpp_authentication *auth = wpa_s->dpp_auth;
be27e185
JM		 93
94 bi = dpp_parse_qr_code(cmd);
95 if (!bi)
96 return -1;
97
98 bi->id = wpas_dpp_next_id(wpa_s);
99 dl_list_add(&wpa_s->dpp_bootstrap, &bi->list);
100
30d27b04
JM		 101 if (auth && auth->response_pending &&
102 dpp_notify_new_qr_code(auth, bi) == 1) {
30d27b04
JM		 103 wpa_printf(MSG_DEBUG,
104 "DPP: Sending out pending authentication response");
af48810b
JM		 105 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR
106 " freq=%u type=%d",
107 MAC2STR(auth->peer_mac_addr), auth->curr_freq,
108 DPP_PA_AUTHENTICATION_RESP);
30d27b04
JM		 109 offchannel_send_action(wpa_s, auth->curr_freq,
110 auth->peer_mac_addr, wpa_s->own_addr,
111 broadcast,
dc4d271c
JM		 112 wpabuf_head(auth->resp_msg),
113 wpabuf_len(auth->resp_msg),
30d27b04 114 500, wpas_dpp_tx_status, 0);
30d27b04
JM		 115 }
116
be27e185
JM		 117 return bi->id;
118}
119
120
121static char * get_param(const char *cmd, const char *param)
122{
123 const char *pos, *end;
124 char *val;
125 size_t len;
126
127 pos = os_strstr(cmd, param);
128 if (!pos)
129 return NULL;
130
131 pos += os_strlen(param);
132 end = os_strchr(pos, ' ');
133 if (end)
134 len = end - pos;
135 else
136 len = os_strlen(pos);
137 val = os_malloc(len + 1);
138 if (!val)
139 return NULL;
140 os_memcpy(val, pos, len);
141 val[len] = '\0';
142 return val;
143}
144
145
146int wpas_dpp_bootstrap_gen(struct wpa_supplicant *wpa_s, const char *cmd)
147{
148 char *chan = NULL, *mac = NULL, *info = NULL, *pk = NULL, *curve = NULL;
149 char *key = NULL;
150 u8 *privkey = NULL;
151 size_t privkey_len = 0;
152 size_t len;
153 int ret = -1;
154 struct dpp_bootstrap_info *bi;
155
156 bi = os_zalloc(sizeof(*bi));
157 if (!bi)
158 goto fail;
159
160 if (os_strstr(cmd, "type=qrcode"))
161 bi->type = DPP_BOOTSTRAP_QR_CODE;
500ed7f0
JM		 162 else if (os_strstr(cmd, "type=pkex"))
163 bi->type = DPP_BOOTSTRAP_PKEX;
be27e185
JM		 164 else
165 goto fail;
166
167 chan = get_param(cmd, " chan=");
168 mac = get_param(cmd, " mac=");
169 info = get_param(cmd, " info=");
170 curve = get_param(cmd, " curve=");
171 key = get_param(cmd, " key=");
172
173 if (key) {
174 privkey_len = os_strlen(key) / 2;
175 privkey = os_malloc(privkey_len);
176 if (!privkey ||
177 hexstr2bin(key, privkey, privkey_len) < 0)
178 goto fail;
179 }
180
181 pk = dpp_keygen(bi, curve, privkey, privkey_len);
182 if (!pk)
183 goto fail;
184
185 len = 4; /* "DPP:" */
186 if (chan) {
187 if (dpp_parse_uri_chan_list(bi, chan) < 0)
188 goto fail;
189 len += 3 + os_strlen(chan); /* C:...; */
190 }
191 if (mac) {
192 if (dpp_parse_uri_mac(bi, mac) < 0)
193 goto fail;
194 len += 3 + os_strlen(mac); /* M:...; */
195 }
196 if (info) {
197 if (dpp_parse_uri_info(bi, info) < 0)
198 goto fail;
199 len += 3 + os_strlen(info); /* I:...; */
200 }
201 len += 4 + os_strlen(pk);
202 bi->uri = os_malloc(len + 1);
203 if (!bi->uri)
204 goto fail;
205 os_snprintf(bi->uri, len + 1, "DPP:%s%s%s%s%s%s%s%s%sK:%s;;",
206 chan ? "C:" : "", chan ? chan : "", chan ? ";" : "",
207 mac ? "M:" : "", mac ? mac : "", mac ? ";" : "",
208 info ? "I:" : "", info ? info : "", info ? ";" : "",
209 pk);
210 bi->id = wpas_dpp_next_id(wpa_s);
211 dl_list_add(&wpa_s->dpp_bootstrap, &bi->list);
212 ret = bi->id;
213 bi = NULL;
214fail:
215 os_free(curve);
216 os_free(pk);
217 os_free(chan);
218 os_free(mac);
219 os_free(info);
220 str_clear_free(key);
221 bin_clear_free(privkey, privkey_len);
222 dpp_bootstrap_info_free(bi);
223 return ret;
224}
225
226
227static struct dpp_bootstrap_info *
228dpp_bootstrap_get_id(struct wpa_supplicant *wpa_s, unsigned int id)
229{
230 struct dpp_bootstrap_info *bi;
231
232 dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info,
233 list) {
234 if (bi->id == id)
235 return bi;
236 }
237 return NULL;
238}
239
240
241static int dpp_bootstrap_del(struct wpa_supplicant *wpa_s, unsigned int id)
242{
243 struct dpp_bootstrap_info *bi, *tmp;
244 int found = 0;
245
246 dl_list_for_each_safe(bi, tmp, &wpa_s->dpp_bootstrap,
247 struct dpp_bootstrap_info, list) {
248 if (id && bi->id != id)
249 continue;
250 found = 1;
251 dl_list_del(&bi->list);
252 dpp_bootstrap_info_free(bi);
253 }
254
255 if (id == 0)
256 return 0; /* flush succeeds regardless of entries found */
257 return found ? 0 : -1;
258}
259
260
261int wpas_dpp_bootstrap_remove(struct wpa_supplicant *wpa_s, const char *id)
262{
263 unsigned int id_val;
264
265 if (os_strcmp(id, "*") == 0) {
266 id_val = 0;
267 } else {
268 id_val = atoi(id);
269 if (id_val == 0)
270 return -1;
271 }
272
273 return dpp_bootstrap_del(wpa_s, id_val);
274}
275
276
277const char * wpas_dpp_bootstrap_get_uri(struct wpa_supplicant *wpa_s,
278 unsigned int id)
279{
280 struct dpp_bootstrap_info *bi;
281
282 bi = dpp_bootstrap_get_id(wpa_s, id);
283 if (!bi)
284 return NULL;
285 return bi->uri;
286}
287
288
6a7182a9
JM		 289int wpas_dpp_bootstrap_info(struct wpa_supplicant *wpa_s, int id,
290 char *reply, int reply_size)
291{
292 struct dpp_bootstrap_info *bi;
293
294 bi = dpp_bootstrap_get_id(wpa_s, id);
295 if (!bi)
296 return -1;
297 return os_snprintf(reply, reply_size, "type=%s\n"
298 "mac_addr=" MACSTR "\n"
299 "info=%s\n"
300 "num_freq=%u\n"
301 "curve=%s\n",
484788b8 302 dpp_bootstrap_type_txt(bi->type),
6a7182a9
JM		 303 MAC2STR(bi->mac_addr),
304 bi->info ? bi->info : "",
305 bi->num_freq,
306 bi->curve->name);
307}
308
309
95b0104a
JM		 310static void wpas_dpp_auth_resp_retry_timeout(void *eloop_ctx, void *timeout_ctx)
311{
312 struct wpa_supplicant *wpa_s = eloop_ctx;
313 struct dpp_authentication *auth = wpa_s->dpp_auth;
314
315 if (!auth || !auth->resp_msg)
316 return;
317
318 wpa_printf(MSG_DEBUG,
319 "DPP: Retry Authentication Response after timeout");
320 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR
321 " freq=%u type=%d",
322 MAC2STR(auth->peer_mac_addr), auth->curr_freq,
323 DPP_PA_AUTHENTICATION_RESP);
324 offchannel_send_action(wpa_s, auth->curr_freq, auth->peer_mac_addr,
325 wpa_s->own_addr, broadcast,
326 wpabuf_head(auth->resp_msg),
327 wpabuf_len(auth->resp_msg),
328 500, wpas_dpp_tx_status, 0);
329}
330
331
332static void wpas_dpp_auth_resp_retry(struct wpa_supplicant *wpa_s)
333{
334 struct dpp_authentication *auth = wpa_s->dpp_auth;
335 unsigned int wait_time, max_tries;
336
337 if (!auth || !auth->resp_msg)
338 return;
339
340 if (wpa_s->dpp_resp_max_tries)
341 max_tries = wpa_s->dpp_resp_max_tries;
342 else
343 max_tries = 5;
344 auth->auth_resp_tries++;
345 if (auth->auth_resp_tries >= max_tries) {
346 wpa_printf(MSG_INFO, "DPP: No confirm received from initiator - stopping exchange");
347 offchannel_send_action_done(wpa_s);
348 dpp_auth_deinit(wpa_s->dpp_auth);
349 wpa_s->dpp_auth = NULL;
350 return;
351 }
352
353 if (wpa_s->dpp_resp_retry_time)
354 wait_time = wpa_s->dpp_resp_retry_time;
355 else
ed2c493e 356 wait_time = 1000;
95b0104a
JM		 357 wpa_printf(MSG_DEBUG,
358 "DPP: Schedule retransmission of Authentication Response frame in %u ms",
359 wait_time);
360 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
361 eloop_register_timeout(wait_time / 1000,
362 (wait_time % 1000) * 1000,
363 wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
364}
365
366
30d27b04
JM		 367static void wpas_dpp_tx_status(struct wpa_supplicant *wpa_s,
368 unsigned int freq, const u8 *dst,
369 const u8 *src, const u8 *bssid,
370 const u8 *data, size_t data_len,
371 enum offchannel_send_action_result result)
372{
af48810b 373 const char *res_txt;
f97ace34 374 struct dpp_authentication *auth = wpa_s->dpp_auth;
af48810b
JM		 375
376 res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
377 (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
378 "FAILED");
30d27b04 379 wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
af48810b
JM		 380 " result=%s", freq, MAC2STR(dst), res_txt);
381 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
382 " freq=%u result=%s", MAC2STR(dst), freq, res_txt);
30d27b04
JM		 383
384 if (!wpa_s->dpp_auth) {
385 wpa_printf(MSG_DEBUG,
386 "DPP: Ignore TX status since there is no ongoing authentication exchange");
387 return;
388 }
389
390 if (wpa_s->dpp_auth->remove_on_tx_status) {
391 wpa_printf(MSG_DEBUG,
392 "DPP: Terminate authentication exchange due to an earlier error");
f97ace34 393 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
461d39af 394 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
95b0104a
JM		 395 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s,
396 NULL);
461d39af 397 offchannel_send_action_done(wpa_s);
30d27b04
JM		 398 dpp_auth_deinit(wpa_s->dpp_auth);
399 wpa_s->dpp_auth = NULL;
400 return;
401 }
402
461d39af
JM		 403 if (wpa_s->dpp_auth_ok_on_ack)
404 wpas_dpp_auth_success(wpa_s, 1);
405
30d27b04
JM		 406 if (!is_broadcast_ether_addr(dst) &&
407 result != OFFCHANNEL_SEND_ACTION_SUCCESS) {
408 wpa_printf(MSG_DEBUG,
409 "DPP: Unicast DPP Action frame was not ACKed");
f97ace34
JM		 410 if (auth->waiting_auth_resp) {
411 /* In case of DPP Authentication Request frame, move to
412 * the next channel immediately. */
413 offchannel_send_action_done(wpa_s);
414 wpas_dpp_auth_init_next(wpa_s);
415 return;
416 }
95b0104a
JM		 417 if (auth->waiting_auth_conf) {
418 wpas_dpp_auth_resp_retry(wpa_s);
419 return;
420 }
30d27b04 421 }
d2709206 422
248264c6
JM		 423 if (!is_broadcast_ether_addr(dst) && auth->waiting_auth_resp &&
424 result == OFFCHANNEL_SEND_ACTION_SUCCESS) {
425 /* Allow timeout handling to stop iteration if no response is
426 * received from a peer that has ACKed a request. */
427 auth->auth_req_ack = 1;
428 }
429
d2709206
JM		 430 if (!wpa_s->dpp_auth_ok_on_ack && wpa_s->dpp_auth->neg_freq > 0 &&
431 wpa_s->dpp_auth->curr_freq != wpa_s->dpp_auth->neg_freq) {
432 wpa_printf(MSG_DEBUG,
433 "DPP: Move from curr_freq %u MHz to neg_freq %u MHz for response",
434 wpa_s->dpp_auth->curr_freq,
435 wpa_s->dpp_auth->neg_freq);
436 offchannel_send_action_done(wpa_s);
437 wpas_dpp_listen_start(wpa_s, wpa_s->dpp_auth->neg_freq);
438 }
d3cb7ebe
JM		 439
440 if (wpa_s->dpp_auth_ok_on_ack)
441 wpa_s->dpp_auth_ok_on_ack = 0;
30d27b04
JM		 442}
443
444
445static void wpas_dpp_reply_wait_timeout(void *eloop_ctx, void *timeout_ctx)
446{
447 struct wpa_supplicant *wpa_s = eloop_ctx;
248264c6 448 struct dpp_authentication *auth = wpa_s->dpp_auth;
d2709206 449 unsigned int freq;
0db637ca
JM		 450 struct os_reltime now, diff;
451 unsigned int wait_time, diff_ms;
30d27b04 452
0db637ca 453 if (!auth || !auth->waiting_auth_resp)
30d27b04 454 return;
f97ace34 455
0db637ca
JM		 456 wait_time = wpa_s->dpp_resp_wait_time ?
457 wpa_s->dpp_resp_wait_time : 2000;
458 os_get_reltime(&now);
459 os_reltime_sub(&now, &wpa_s->dpp_last_init, &diff);
460 diff_ms = diff.sec * 1000 + diff.usec / 1000;
461 wpa_printf(MSG_DEBUG,
462 "DPP: Reply wait timeout - wait_time=%u diff_ms=%u",
463 wait_time, diff_ms);
464
465 if (auth->auth_req_ack && diff_ms >= wait_time) {
466 /* Peer ACK'ed Authentication Request frame, but did not reply
467 * with Authentication Response frame within two seconds. */
248264c6
JM		 468 wpa_printf(MSG_INFO,
469 "DPP: No response received from responder - stopping initiation attempt");
470 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_INIT_FAILED);
471 offchannel_send_action_done(wpa_s);
0db637ca 472 wpas_dpp_listen_stop(wpa_s);
248264c6
JM		 473 dpp_auth_deinit(auth);
474 wpa_s->dpp_auth = NULL;
475 return;
476 }
477
0db637ca
JM		 478 if (diff_ms >= wait_time) {
479 /* Authentication Request frame was not ACK'ed and no reply
480 * was receiving within two seconds. */
481 wpa_printf(MSG_DEBUG,
482 "DPP: Continue Initiator channel iteration");
483 offchannel_send_action_done(wpa_s);
484 wpas_dpp_listen_stop(wpa_s);
485 wpas_dpp_auth_init_next(wpa_s);
486 return;
f97ace34
JM		 487 }
488
0db637ca
JM		 489 /* Driver did not support 2000 ms long wait_time with TX command, so
490 * schedule listen operation to continue waiting for the response.
491 *
492 * DPP listen operations continue until stopped, so simply schedule a
493 * new call to this function at the point when the two second reply
494 * wait has expired. */
495 wait_time -= diff_ms;
496
248264c6
JM		 497 freq = auth->curr_freq;
498 if (auth->neg_freq > 0)
499 freq = auth->neg_freq;
0db637ca
JM		 500 wpa_printf(MSG_DEBUG,
501 "DPP: Continue reply wait on channel %u MHz for %u ms",
502 freq, wait_time);
503 wpa_s->dpp_in_response_listen = 1;
d2709206 504 wpas_dpp_listen_start(wpa_s, freq);
0db637ca
JM		 505
506 eloop_register_timeout(wait_time / 1000, (wait_time % 1000) * 1000,
507 wpas_dpp_reply_wait_timeout, wpa_s, NULL);
30d27b04
JM		 508}
509
510
461d39af
JM		 511static void wpas_dpp_set_testing_options(struct wpa_supplicant *wpa_s,
512 struct dpp_authentication *auth)
513{
514#ifdef CONFIG_TESTING_OPTIONS
515 if (wpa_s->dpp_config_obj_override)
516 auth->config_obj_override =
517 os_strdup(wpa_s->dpp_config_obj_override);
518 if (wpa_s->dpp_discovery_override)
519 auth->discovery_override =
520 os_strdup(wpa_s->dpp_discovery_override);
521 if (wpa_s->dpp_groups_override)
522 auth->groups_override =
523 os_strdup(wpa_s->dpp_groups_override);
461d39af
JM		 524 auth->ignore_netaccesskey_mismatch =
525 wpa_s->dpp_ignore_netaccesskey_mismatch;
526#endif /* CONFIG_TESTING_OPTIONS */
527}
528
529
a00d65e7
JM		 530static int wpas_dpp_set_configurator(struct wpa_supplicant *wpa_s,
531 struct dpp_authentication *auth,
532 const char *cmd)
30d27b04 533{
68cb6dce 534 const char *pos, *end;
461d39af
JM		 535 struct dpp_configuration *conf_sta = NULL, *conf_ap = NULL;
536 struct dpp_configurator *conf = NULL;
68cb6dce
JM		 537 u8 ssid[32] = { "test" };
538 size_t ssid_len = 4;
35f06421
JM		 539 char pass[64] = { };
540 size_t pass_len = 0;
5030d7d9
JM		 541 u8 psk[PMK_LEN];
542 int psk_set = 0;
20f612d9 543 char *group_id = NULL;
461d39af 544
b65b22d6 545 if (!cmd)
a00d65e7 546 return 0;
461d39af 547
b65b22d6 548 wpa_printf(MSG_DEBUG, "DPP: Set configurator parameters: %s", cmd);
68cb6dce
JM		 549 pos = os_strstr(cmd, " ssid=");
550 if (pos) {
551 pos += 6;
552 end = os_strchr(pos, ' ');
553 ssid_len = end ? (size_t) (end - pos) : os_strlen(pos);
554 ssid_len /= 2;
555 if (ssid_len > sizeof(ssid) ||
556 hexstr2bin(pos, ssid, ssid_len) < 0)
557 goto fail;
558 }
559
35f06421
JM		 560 pos = os_strstr(cmd, " pass=");
561 if (pos) {
562 pos += 6;
563 end = os_strchr(pos, ' ');
564 pass_len = end ? (size_t) (end - pos) : os_strlen(pos);
565 pass_len /= 2;
566 if (pass_len > sizeof(pass) - 1 || pass_len < 8 ||
567 hexstr2bin(pos, (u8 *) pass, pass_len) < 0)
568 goto fail;
569 }
570
5030d7d9
JM		 571 pos = os_strstr(cmd, " psk=");
572 if (pos) {
573 pos += 5;
574 if (hexstr2bin(pos, psk, PMK_LEN) < 0)
575 goto fail;
576 psk_set = 1;
577 }
578
20f612d9
PK		 579 pos = os_strstr(cmd, " group_id=");
580 if (pos) {
581 size_t group_id_len;
582
583 pos += 10;
584 end = os_strchr(pos, ' ');
585 group_id_len = end ? (size_t) (end - pos) : os_strlen(pos);
586 group_id = os_malloc(group_id_len + 1);
587 if (!group_id)
588 goto fail;
589 os_memcpy(group_id, pos, group_id_len);
590 group_id[group_id_len] = '\0';
591 }
592
461d39af
JM		 593 if (os_strstr(cmd, " conf=sta-")) {
594 conf_sta = os_zalloc(sizeof(struct dpp_configuration));
595 if (!conf_sta)
596 goto fail;
68cb6dce
JM		 597 os_memcpy(conf_sta->ssid, ssid, ssid_len);
598 conf_sta->ssid_len = ssid_len;
e3a5882b
JM		 599 if (os_strstr(cmd, " conf=sta-psk") ||
600 os_strstr(cmd, " conf=sta-sae") ||
601 os_strstr(cmd, " conf=sta-psk-sae")) {
602 if (os_strstr(cmd, " conf=sta-psk-sae"))
603 conf_sta->akm = DPP_AKM_PSK_SAE;
604 else if (os_strstr(cmd, " conf=sta-sae"))
605 conf_sta->akm = DPP_AKM_SAE;
606 else
607 conf_sta->akm = DPP_AKM_PSK;
5030d7d9
JM		 608 if (psk_set) {
609 os_memcpy(conf_sta->psk, psk, PMK_LEN);
a00d65e7 610 } else if (pass_len > 0) {
5030d7d9
JM		 611 conf_sta->passphrase = os_strdup(pass);
612 if (!conf_sta->passphrase)
613 goto fail;
a00d65e7
JM		 614 } else {
615 goto fail;
5030d7d9 616 }
461d39af 617 } else if (os_strstr(cmd, " conf=sta-dpp")) {
e3a5882b 618 conf_sta->akm = DPP_AKM_DPP;
461d39af
JM		 619 } else {
620 goto fail;
621 }
20f612d9
PK		 622 if (os_strstr(cmd, " group_id=")) {
623 conf_sta->group_id = group_id;
624 group_id = NULL;
625 }
461d39af
JM		 626 }
627
628 if (os_strstr(cmd, " conf=ap-")) {
629 conf_ap = os_zalloc(sizeof(struct dpp_configuration));
630 if (!conf_ap)
631 goto fail;
68cb6dce
JM		 632 os_memcpy(conf_ap->ssid, ssid, ssid_len);
633 conf_ap->ssid_len = ssid_len;
e3a5882b
JM		 634 if (os_strstr(cmd, " conf=ap-psk") ||
635 os_strstr(cmd, " conf=ap-sae") ||
636 os_strstr(cmd, " conf=ap-psk-sae")) {
637 if (os_strstr(cmd, " conf=ap-psk-sae"))
638 conf_ap->akm = DPP_AKM_PSK_SAE;
639 else if (os_strstr(cmd, " conf=ap-sae"))
640 conf_ap->akm = DPP_AKM_SAE;
641 else
642 conf_ap->akm = DPP_AKM_PSK;
5030d7d9
JM		 643 if (psk_set) {
644 os_memcpy(conf_ap->psk, psk, PMK_LEN);
645 } else {
646 conf_ap->passphrase = os_strdup(pass);
647 if (!conf_ap->passphrase)
648 goto fail;
649 }
461d39af 650 } else if (os_strstr(cmd, " conf=ap-dpp")) {
e3a5882b 651 conf_ap->akm = DPP_AKM_DPP;
461d39af
JM		 652 } else {
653 goto fail;
654 }
20f612d9
PK		 655 if (os_strstr(cmd, " group_id=")) {
656 conf_ap->group_id = group_id;
657 group_id = NULL;
658 }
461d39af
JM		 659 }
660
661 pos = os_strstr(cmd, " expiry=");
662 if (pos) {
663 long int val;
664
665 pos += 8;
666 val = strtol(pos, NULL, 0);
667 if (val <= 0)
668 goto fail;
669 if (conf_sta)
670 conf_sta->netaccesskey_expiry = val;
671 if (conf_ap)
672 conf_ap->netaccesskey_expiry = val;
673 }
674
675 pos = os_strstr(cmd, " configurator=");
676 if (pos) {
677 pos += 14;
678 conf = dpp_configurator_get_id(wpa_s, atoi(pos));
679 if (!conf) {
680 wpa_printf(MSG_INFO,
681 "DPP: Could not find the specified configurator");
682 goto fail;
683 }
30d27b04 684 }
b65b22d6
JM		 685 auth->conf_sta = conf_sta;
686 auth->conf_ap = conf_ap;
687 auth->conf = conf;
20f612d9 688 os_free(group_id);
a00d65e7 689 return 0;
b65b22d6
JM		 690
691fail:
a00d65e7 692 wpa_msg(wpa_s, MSG_INFO, "DPP: Failed to set configurator parameters");
b65b22d6
JM		 693 dpp_configuration_free(conf_sta);
694 dpp_configuration_free(conf_ap);
20f612d9 695 os_free(group_id);
a00d65e7 696 return -1;
b65b22d6
JM		 697}
698
699
f97ace34
JM		 700static void wpas_dpp_init_timeout(void *eloop_ctx, void *timeout_ctx)
701{
702 struct wpa_supplicant *wpa_s = eloop_ctx;
703
704 if (!wpa_s->dpp_auth)
705 return;
706 wpa_printf(MSG_DEBUG, "DPP: Retry initiation after timeout");
707 wpas_dpp_auth_init_next(wpa_s);
708}
709
710
711static int wpas_dpp_auth_init_next(struct wpa_supplicant *wpa_s)
712{
713 struct dpp_authentication *auth = wpa_s->dpp_auth;
714 const u8 *dst;
0db637ca 715 unsigned int wait_time, max_wait_time, freq, max_tries, used;
921f5acd 716 struct os_reltime now, diff;
f97ace34 717
0db637ca 718 wpa_s->dpp_in_response_listen = 0;
f97ace34
JM		 719 if (!auth)
720 return -1;
0db637ca
JM		 721
722 if (auth->freq_idx == 0)
723 os_get_reltime(&wpa_s->dpp_init_iter_start);
724
f97ace34
JM		 725 if (auth->freq_idx >= auth->num_freq) {
726 auth->num_freq_iters++;
727 if (wpa_s->dpp_init_max_tries)
728 max_tries = wpa_s->dpp_init_max_tries;
729 else
730 max_tries = 5;
248264c6 731 if (auth->num_freq_iters >= max_tries || auth->auth_req_ack) {
f97ace34
JM		 732 wpa_printf(MSG_INFO,
733 "DPP: No response received from responder - stopping initiation attempt");
734 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_INIT_FAILED);
735 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout,
736 wpa_s, NULL);
737 offchannel_send_action_done(wpa_s);
738 dpp_auth_deinit(wpa_s->dpp_auth);
739 wpa_s->dpp_auth = NULL;
740 return -1;
741 }
742 auth->freq_idx = 0;
743 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
744 if (wpa_s->dpp_init_retry_time)
745 wait_time = wpa_s->dpp_init_retry_time;
746 else
747 wait_time = 10000;
921f5acd 748 os_get_reltime(&now);
0db637ca 749 os_reltime_sub(&now, &wpa_s->dpp_init_iter_start, &diff);
921f5acd
JM		 750 used = diff.sec * 1000 + diff.usec / 1000;
751 if (used > wait_time)
752 wait_time = 0;
753 else
754 wait_time -= used;
755 wpa_printf(MSG_DEBUG, "DPP: Next init attempt in %u ms",
756 wait_time);
f97ace34
JM		 757 eloop_register_timeout(wait_time / 1000,
758 (wait_time % 1000) * 1000,
759 wpas_dpp_init_timeout, wpa_s,
760 NULL);
761 return 0;
762 }
763 freq = auth->freq[auth->freq_idx++];
764 auth->curr_freq = freq;
765
766 if (is_zero_ether_addr(auth->peer_bi->mac_addr))
767 dst = broadcast;
768 else
769 dst = auth->peer_bi->mac_addr;
770 wpa_s->dpp_auth_ok_on_ack = 0;
771 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
772 wait_time = wpa_s->max_remain_on_chan;
0db637ca
JM		 773 max_wait_time = wpa_s->dpp_resp_wait_time ?
774 wpa_s->dpp_resp_wait_time : 2000;
775 if (wait_time > max_wait_time)
776 wait_time = max_wait_time;
777 wait_time += 10; /* give the driver some extra time to complete */
f97ace34
JM		 778 eloop_register_timeout(wait_time / 1000, (wait_time % 1000) * 1000,
779 wpas_dpp_reply_wait_timeout,
780 wpa_s, NULL);
0db637ca 781 wait_time -= 10;
f97ace34
JM		 782 if (auth->neg_freq > 0 && freq != auth->neg_freq) {
783 wpa_printf(MSG_DEBUG,
784 "DPP: Initiate on %u MHz and move to neg_freq %u MHz for response",
785 freq, auth->neg_freq);
786 }
787 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
788 MAC2STR(dst), freq, DPP_PA_AUTHENTICATION_REQ);
248264c6 789 auth->auth_req_ack = 0;
f97ace34
JM		 790 os_get_reltime(&wpa_s->dpp_last_init);
791 return offchannel_send_action(wpa_s, freq, dst,
792 wpa_s->own_addr, broadcast,
793 wpabuf_head(auth->req_msg),
794 wpabuf_len(auth->req_msg),
795 wait_time, wpas_dpp_tx_status, 0);
796}
797
798
b65b22d6
JM		 799int wpas_dpp_auth_init(struct wpa_supplicant *wpa_s, const char *cmd)
800{
801 const char *pos;
802 struct dpp_bootstrap_info *peer_bi, *own_bi = NULL;
d1f08264 803 u8 allowed_roles = DPP_CAPAB_CONFIGURATOR;
d2709206 804 unsigned int neg_freq = 0;
b65b22d6
JM		 805
806 wpa_s->dpp_gas_client = 0;
807
808 pos = os_strstr(cmd, " peer=");
809 if (!pos)
810 return -1;
811 pos += 6;
812 peer_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
813 if (!peer_bi) {
814 wpa_printf(MSG_INFO,
815 "DPP: Could not find bootstrapping info for the identified peer");
816 return -1;
817 }
818
819 pos = os_strstr(cmd, " own=");
820 if (pos) {
821 pos += 5;
822 own_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
823 if (!own_bi) {
824 wpa_printf(MSG_INFO,
825 "DPP: Could not find bootstrapping info for the identified local entry");
826 return -1;
827 }
828
829 if (peer_bi->curve != own_bi->curve) {
830 wpa_printf(MSG_INFO,
831 "DPP: Mismatching curves in bootstrapping info (peer=%s own=%s)",
832 peer_bi->curve->name, own_bi->curve->name);
833 return -1;
834 }
835 }
836
837 pos = os_strstr(cmd, " role=");
838 if (pos) {
839 pos += 6;
840 if (os_strncmp(pos, "configurator", 12) == 0)
d1f08264 841 allowed_roles = DPP_CAPAB_CONFIGURATOR;
b65b22d6 842 else if (os_strncmp(pos, "enrollee", 8) == 0)
d1f08264
JM		 843 allowed_roles = DPP_CAPAB_ENROLLEE;
844 else if (os_strncmp(pos, "either", 6) == 0)
845 allowed_roles = DPP_CAPAB_CONFIGURATOR |
846 DPP_CAPAB_ENROLLEE;
b65b22d6
JM		 847 else
848 goto fail;
849 }
850
851 pos = os_strstr(cmd, " netrole=");
852 if (pos) {
853 pos += 9;
854 wpa_s->dpp_netrole_ap = os_strncmp(pos, "ap", 2) == 0;
855 }
30d27b04 856
d2709206
JM		 857 pos = os_strstr(cmd, " neg_freq=");
858 if (pos)
859 neg_freq = atoi(pos + 10);
860
30d27b04 861 if (wpa_s->dpp_auth) {
f97ace34 862 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
30d27b04 863 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
95b0104a
JM		 864 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s,
865 NULL);
30d27b04
JM		 866 offchannel_send_action_done(wpa_s);
867 dpp_auth_deinit(wpa_s->dpp_auth);
868 }
d1f08264 869 wpa_s->dpp_auth = dpp_auth_init(wpa_s, peer_bi, own_bi, allowed_roles,
f97ace34
JM		 870 neg_freq,
871 wpa_s->hw.modes, wpa_s->hw.num_modes);
30d27b04 872 if (!wpa_s->dpp_auth)
461d39af
JM		 873 goto fail;
874 wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth);
a00d65e7
JM		 875 if (wpas_dpp_set_configurator(wpa_s, wpa_s->dpp_auth, cmd) < 0) {
876 dpp_auth_deinit(wpa_s->dpp_auth);
877 wpa_s->dpp_auth = NULL;
878 goto fail;
879 }
30d27b04 880
d2709206 881 wpa_s->dpp_auth->neg_freq = neg_freq;
30d27b04 882
f97ace34 883 if (!is_zero_ether_addr(peer_bi->mac_addr))
30d27b04
JM		 884 os_memcpy(wpa_s->dpp_auth->peer_mac_addr, peer_bi->mac_addr,
885 ETH_ALEN);
f97ace34
JM		 886
887 return wpas_dpp_auth_init_next(wpa_s);
461d39af 888fail:
461d39af 889 return -1;
30d27b04
JM		 890}
891
892
893struct wpas_dpp_listen_work {
894 unsigned int freq;
895 unsigned int duration;
896 struct wpabuf *probe_resp_ie;
897};
898
899
900static void wpas_dpp_listen_work_free(struct wpas_dpp_listen_work *lwork)
901{
902 if (!lwork)
903 return;
904 os_free(lwork);
905}
906
907
908static void wpas_dpp_listen_work_done(struct wpa_supplicant *wpa_s)
909{
910 struct wpas_dpp_listen_work *lwork;
911
912 if (!wpa_s->dpp_listen_work)
913 return;
914
915 lwork = wpa_s->dpp_listen_work->ctx;
916 wpas_dpp_listen_work_free(lwork);
917 radio_work_done(wpa_s->dpp_listen_work);
918 wpa_s->dpp_listen_work = NULL;
919}
920
921
922static void dpp_start_listen_cb(struct wpa_radio_work *work, int deinit)
923{
924 struct wpa_supplicant *wpa_s = work->wpa_s;
925 struct wpas_dpp_listen_work *lwork = work->ctx;
926
927 if (deinit) {
928 if (work->started) {
929 wpa_s->dpp_listen_work = NULL;
930 wpas_dpp_listen_stop(wpa_s);
931 }
932 wpas_dpp_listen_work_free(lwork);
933 return;
934 }
935
936 wpa_s->dpp_listen_work = work;
937
938 wpa_s->dpp_pending_listen_freq = lwork->freq;
939
940 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq,
941 wpa_s->max_remain_on_chan) < 0) {
942 wpa_printf(MSG_DEBUG,
943 "DPP: Failed to request the driver to remain on channel (%u MHz) for listen",
944 lwork->freq);
d8c20ec5 945 wpa_s->dpp_listen_freq = 0;
30d27b04
JM		 946 wpas_dpp_listen_work_done(wpa_s);
947 wpa_s->dpp_pending_listen_freq = 0;
948 return;
949 }
950 wpa_s->off_channel_freq = 0;
951 wpa_s->roc_waiting_drv_freq = lwork->freq;
952}
953
954
955static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s,
956 unsigned int freq)
957{
958 struct wpas_dpp_listen_work *lwork;
959
960 if (wpa_s->dpp_listen_work) {
961 wpa_printf(MSG_DEBUG,
962 "DPP: Reject start_listen since dpp_listen_work already exists");
963 return -1;
964 }
965
966 if (wpa_s->dpp_listen_freq)
967 wpas_dpp_listen_stop(wpa_s);
968 wpa_s->dpp_listen_freq = freq;
969
970 lwork = os_zalloc(sizeof(*lwork));
971 if (!lwork)
972 return -1;
973 lwork->freq = freq;
974
975 if (radio_add_work(wpa_s, freq, "dpp-listen", 0, dpp_start_listen_cb,
976 lwork) < 0) {
977 wpas_dpp_listen_work_free(lwork);
978 return -1;
979 }
980
981 return 0;
982}
983
984
985int wpas_dpp_listen(struct wpa_supplicant *wpa_s, const char *cmd)
986{
987 int freq;
988
989 freq = atoi(cmd);
990 if (freq <= 0)
991 return -1;
992
993 if (os_strstr(cmd, " role=configurator"))
994 wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR;
995 else if (os_strstr(cmd, " role=enrollee"))
996 wpa_s->dpp_allowed_roles = DPP_CAPAB_ENROLLEE;
997 else
998 wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR |
999 DPP_CAPAB_ENROLLEE;
1000 wpa_s->dpp_qr_mutual = os_strstr(cmd, " qr=mutual") != NULL;
461d39af 1001 wpa_s->dpp_netrole_ap = os_strstr(cmd, " netrole=ap") != NULL;
30d27b04
JM		 1002 if (wpa_s->dpp_listen_freq == (unsigned int) freq) {
1003 wpa_printf(MSG_DEBUG, "DPP: Already listening on %u MHz",
1004 freq);
1005 return 0;
1006 }
1007
1008 return wpas_dpp_listen_start(wpa_s, freq);
1009}
1010
1011
1012void wpas_dpp_listen_stop(struct wpa_supplicant *wpa_s)
1013{
0db637ca 1014 wpa_s->dpp_in_response_listen = 0;
30d27b04
JM		 1015 if (!wpa_s->dpp_listen_freq)
1016 return;
1017
1018 wpa_printf(MSG_DEBUG, "DPP: Stop listen on %u MHz",
1019 wpa_s->dpp_listen_freq);
1020 wpa_drv_cancel_remain_on_channel(wpa_s);
1021 wpa_s->dpp_listen_freq = 0;
1022 wpas_dpp_listen_work_done(wpa_s);
1023}
1024
1025
30d27b04
JM		 1026void wpas_dpp_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
1027 unsigned int freq)
1028{
1029 wpas_dpp_listen_work_done(wpa_s);
1030
0db637ca
JM		 1031 if (wpa_s->dpp_auth && wpa_s->dpp_in_response_listen) {
1032 unsigned int new_freq;
1033
30d27b04 1034 /* Continue listen with a new remain-on-channel */
0db637ca
JM		 1035 if (wpa_s->dpp_auth->neg_freq > 0)
1036 new_freq = wpa_s->dpp_auth->neg_freq;
1037 else
1038 new_freq = wpa_s->dpp_auth->curr_freq;
30d27b04
JM		 1039 wpa_printf(MSG_DEBUG,
1040 "DPP: Continue wait on %u MHz for the ongoing DPP provisioning session",
0db637ca
JM		 1041 new_freq);
1042 wpas_dpp_listen_start(wpa_s, new_freq);
30d27b04
JM		 1043 return;
1044 }
1045
1046 if (wpa_s->dpp_listen_freq) {
1047 /* Continue listen with a new remain-on-channel */
1048 wpas_dpp_listen_start(wpa_s, wpa_s->dpp_listen_freq);
1049 }
1050}
1051
1052
1053static void wpas_dpp_rx_auth_req(struct wpa_supplicant *wpa_s, const u8 *src,
dc4d271c
JM		 1054 const u8 *hdr, const u8 *buf, size_t len,
1055 unsigned int freq)
30d27b04 1056{
27fefbbb
JM		 1057 const u8 *r_bootstrap, *i_bootstrap;
1058 u16 r_bootstrap_len, i_bootstrap_len;
30d27b04 1059 struct dpp_bootstrap_info *bi, *own_bi = NULL, *peer_bi = NULL;
30d27b04
JM		 1060
1061 wpa_printf(MSG_DEBUG, "DPP: Authentication Request from " MACSTR,
1062 MAC2STR(src));
1063
30d27b04
JM		 1064 r_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_R_BOOTSTRAP_KEY_HASH,
1065 &r_bootstrap_len);
27fefbbb 1066 if (!r_bootstrap || r_bootstrap_len != SHA256_MAC_LEN) {
26806abe
JM		 1067 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1068 "Missing or invalid required Responder Bootstrapping Key Hash attribute");
30d27b04
JM		 1069 return;
1070 }
1071 wpa_hexdump(MSG_MSGDUMP, "DPP: Responder Bootstrapping Key Hash",
1072 r_bootstrap, r_bootstrap_len);
1073
1074 i_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_I_BOOTSTRAP_KEY_HASH,
1075 &i_bootstrap_len);
27fefbbb 1076 if (!i_bootstrap || i_bootstrap_len != SHA256_MAC_LEN) {
26806abe
JM		 1077 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1078 "Missing or invalid required Initiator Bootstrapping Key Hash attribute");
30d27b04
JM		 1079 return;
1080 }
1081 wpa_hexdump(MSG_MSGDUMP, "DPP: Initiator Bootstrapping Key Hash",
1082 i_bootstrap, i_bootstrap_len);
1083
1084 /* Try to find own and peer bootstrapping key matches based on the
1085 * received hash values */
1086 dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info,
1087 list) {
1088 if (!own_bi && bi->own &&
1089 os_memcmp(bi->pubkey_hash, r_bootstrap,
1090 SHA256_MAC_LEN) == 0) {
1091 wpa_printf(MSG_DEBUG,
1092 "DPP: Found matching own bootstrapping information");
1093 own_bi = bi;
1094 }
1095
1096 if (!peer_bi && !bi->own &&
1097 os_memcmp(bi->pubkey_hash, i_bootstrap,
1098 SHA256_MAC_LEN) == 0) {
1099 wpa_printf(MSG_DEBUG,
1100 "DPP: Found matching peer bootstrapping information");
1101 peer_bi = bi;
1102 }
1103
1104 if (own_bi && peer_bi)
1105 break;
1106 }
1107
1108 if (!own_bi) {
26806abe
JM		 1109 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1110 "No matching own bootstrapping key found - ignore message");
30d27b04
JM		 1111 return;
1112 }
1113
1114 if (wpa_s->dpp_auth) {
26806abe
JM		 1115 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1116 "Already in DPP authentication exchange - ignore new one");
30d27b04
JM		 1117 return;
1118 }
1119
461d39af
JM		 1120 wpa_s->dpp_gas_client = 0;
1121 wpa_s->dpp_auth_ok_on_ack = 0;
30d27b04
JM		 1122 wpa_s->dpp_auth = dpp_auth_req_rx(wpa_s, wpa_s->dpp_allowed_roles,
1123 wpa_s->dpp_qr_mutual,
27fefbbb 1124 peer_bi, own_bi, freq, hdr, buf, len);
30d27b04
JM		 1125 if (!wpa_s->dpp_auth) {
1126 wpa_printf(MSG_DEBUG, "DPP: No response generated");
1127 return;
1128 }
461d39af 1129 wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth);
a00d65e7
JM		 1130 if (wpas_dpp_set_configurator(wpa_s, wpa_s->dpp_auth,
1131 wpa_s->dpp_configurator_params) < 0) {
1132 dpp_auth_deinit(wpa_s->dpp_auth);
1133 wpa_s->dpp_auth = NULL;
1134 return;
1135 }
30d27b04
JM		 1136 os_memcpy(wpa_s->dpp_auth->peer_mac_addr, src, ETH_ALEN);
1137
d2709206
JM		 1138 if (wpa_s->dpp_listen_freq &&
1139 wpa_s->dpp_listen_freq != wpa_s->dpp_auth->curr_freq) {
1140 wpa_printf(MSG_DEBUG,
1141 "DPP: Stop listen on %u MHz to allow response on the request %u MHz",
1142 wpa_s->dpp_listen_freq, wpa_s->dpp_auth->curr_freq);
1143 wpas_dpp_listen_stop(wpa_s);
1144 }
1145
af48810b
JM		 1146 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1147 MAC2STR(src), wpa_s->dpp_auth->curr_freq,
1148 DPP_PA_AUTHENTICATION_RESP);
30d27b04
JM		 1149 offchannel_send_action(wpa_s, wpa_s->dpp_auth->curr_freq,
1150 src, wpa_s->own_addr, broadcast,
dc4d271c
JM		 1151 wpabuf_head(wpa_s->dpp_auth->resp_msg),
1152 wpabuf_len(wpa_s->dpp_auth->resp_msg),
30d27b04 1153 500, wpas_dpp_tx_status, 0);
30d27b04
JM		 1154}
1155
1156
461d39af
JM		 1157static void wpas_dpp_start_gas_server(struct wpa_supplicant *wpa_s)
1158{
1159 /* TODO: stop wait and start ROC */
1160}
1161
1162
8528994e
JM		 1163static struct wpa_ssid * wpas_dpp_add_network(struct wpa_supplicant *wpa_s,
1164 struct dpp_authentication *auth)
1165{
1166 struct wpa_ssid *ssid;
1167
1168 ssid = wpa_config_add_network(wpa_s->conf);
1169 if (!ssid)
1170 return NULL;
1171 wpas_notify_network_added(wpa_s, ssid);
1172 wpa_config_set_network_defaults(ssid);
1173 ssid->disabled = 1;
1174
1175 ssid->ssid = os_malloc(auth->ssid_len);
1176 if (!ssid->ssid)
1177 goto fail;
1178 os_memcpy(ssid->ssid, auth->ssid, auth->ssid_len);
1179 ssid->ssid_len = auth->ssid_len;
1180
1181 if (auth->connector) {
1182 ssid->key_mgmt = WPA_KEY_MGMT_DPP;
70e19013 1183 ssid->ieee80211w = MGMT_FRAME_PROTECTION_REQUIRED;
8528994e
JM		 1184 ssid->dpp_connector = os_strdup(auth->connector);
1185 if (!ssid->dpp_connector)
1186 goto fail;
1187 }
1188
1189 if (auth->c_sign_key) {
1190 ssid->dpp_csign = os_malloc(wpabuf_len(auth->c_sign_key));
1191 if (!ssid->dpp_csign)
1192 goto fail;
1193 os_memcpy(ssid->dpp_csign, wpabuf_head(auth->c_sign_key),
1194 wpabuf_len(auth->c_sign_key));
1195 ssid->dpp_csign_len = wpabuf_len(auth->c_sign_key);
8528994e
JM		 1196 }
1197
1198 if (auth->net_access_key) {
1199 ssid->dpp_netaccesskey =
1200 os_malloc(wpabuf_len(auth->net_access_key));
1201 if (!ssid->dpp_netaccesskey)
1202 goto fail;
1203 os_memcpy(ssid->dpp_netaccesskey,
1204 wpabuf_head(auth->net_access_key),
1205 wpabuf_len(auth->net_access_key));
1206 ssid->dpp_netaccesskey_len = wpabuf_len(auth->net_access_key);
1207 ssid->dpp_netaccesskey_expiry = auth->net_access_key_expiry;
1208 }
1209
1210 if (!auth->connector) {
5dd745b7
JM		 1211 ssid->key_mgmt = 0;
1212 if (auth->akm == DPP_AKM_PSK || auth->akm == DPP_AKM_PSK_SAE)
1213 ssid->key_mgmt |= WPA_KEY_MGMT_PSK |
1214 WPA_KEY_MGMT_PSK_SHA256 | WPA_KEY_MGMT_FT_PSK;
1215 if (auth->akm == DPP_AKM_SAE || auth->akm == DPP_AKM_PSK_SAE)
1216 ssid->key_mgmt |= WPA_KEY_MGMT_SAE |
1217 WPA_KEY_MGMT_FT_SAE;
70e19013 1218 ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL;
8528994e
JM		 1219 if (auth->passphrase[0]) {
1220 if (wpa_config_set_quoted(ssid, "psk",
1221 auth->passphrase) < 0)
1222 goto fail;
1223 wpa_config_update_psk(ssid);
1224 ssid->export_keys = 1;
1225 } else {
1226 ssid->psk_set = auth->psk_set;
1227 os_memcpy(ssid->psk, auth->psk, PMK_LEN);
1228 }
1229 }
1230
1231 return ssid;
1232fail:
1233 wpas_notify_network_removed(wpa_s, ssid);
1234 wpa_config_remove_network(wpa_s->conf, ssid->id);
1235 return NULL;
1236}
1237
1238
1239static void wpas_dpp_process_config(struct wpa_supplicant *wpa_s,
1240 struct dpp_authentication *auth)
1241{
1242 struct wpa_ssid *ssid;
1243
1244 if (wpa_s->conf->dpp_config_processing < 1)
1245 return;
1246
1247 ssid = wpas_dpp_add_network(wpa_s, auth);
1248 if (!ssid)
1249 return;
1250
1251 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_NETWORK_ID "%d", ssid->id);
1252 if (wpa_s->conf->dpp_config_processing < 2)
1253 return;
1254
1255 wpa_printf(MSG_DEBUG, "DPP: Trying to connect to the new network");
1256 ssid->disabled = 0;
1257 wpa_s->disconnected = 0;
1258 wpa_s->reassociate = 1;
1259 wpa_s->scan_runs = 0;
1260 wpa_s->normal_scans = 0;
1261 wpa_supplicant_cancel_sched_scan(wpa_s);
1262 wpa_supplicant_req_scan(wpa_s, 0, 0);
1263}
1264
1265
f522bb23
JM		 1266static void wpas_dpp_handle_config_obj(struct wpa_supplicant *wpa_s,
1267 struct dpp_authentication *auth)
461d39af 1268{
461d39af
JM		 1269 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_RECEIVED);
1270 if (auth->ssid_len)
1271 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONFOBJ_SSID "%s",
1272 wpa_ssid_txt(auth->ssid, auth->ssid_len));
1273 if (auth->connector) {
1274 /* TODO: Save the Connector and consider using a command
1275 * to fetch the value instead of sending an event with
1276 * it. The Connector could end up being larger than what
1277 * most clients are ready to receive as an event
1278 * message. */
1279 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONNECTOR "%s",
1280 auth->connector);
1281 }
1282 if (auth->c_sign_key) {
1283 char *hex;
1284 size_t hexlen;
1285
1286 hexlen = 2 * wpabuf_len(auth->c_sign_key) + 1;
1287 hex = os_malloc(hexlen);
1288 if (hex) {
1289 wpa_snprintf_hex(hex, hexlen,
1290 wpabuf_head(auth->c_sign_key),
1291 wpabuf_len(auth->c_sign_key));
c77e2ff0
JM		 1292 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_C_SIGN_KEY "%s",
1293 hex);
461d39af
JM		 1294 os_free(hex);
1295 }
1296 }
1297 if (auth->net_access_key) {
1298 char *hex;
1299 size_t hexlen;
1300
1301 hexlen = 2 * wpabuf_len(auth->net_access_key) + 1;
1302 hex = os_malloc(hexlen);
1303 if (hex) {
1304 wpa_snprintf_hex(hex, hexlen,
1305 wpabuf_head(auth->net_access_key),
1306 wpabuf_len(auth->net_access_key));
1307 if (auth->net_access_key_expiry)
1308 wpa_msg(wpa_s, MSG_INFO,
1309 DPP_EVENT_NET_ACCESS_KEY "%s %lu", hex,
1310 (long unsigned)
1311 auth->net_access_key_expiry);
1312 else
1313 wpa_msg(wpa_s, MSG_INFO,
1314 DPP_EVENT_NET_ACCESS_KEY "%s", hex);
1315 os_free(hex);
1316 }
1317 }
8528994e
JM		 1318
1319 wpas_dpp_process_config(wpa_s, auth);
f522bb23
JM		 1320}
1321
1322
1323static void wpas_dpp_gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token,
1324 enum gas_query_result result,
1325 const struct wpabuf *adv_proto,
1326 const struct wpabuf *resp, u16 status_code)
1327{
1328 struct wpa_supplicant *wpa_s = ctx;
1329 const u8 *pos;
1330 struct dpp_authentication *auth = wpa_s->dpp_auth;
1331
1866dfb5
JM		 1332 wpa_s->dpp_gas_dialog_token = -1;
1333
f522bb23
JM		 1334 if (!auth || !auth->auth_success) {
1335 wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress");
1336 return;
1337 }
931f7ff6
JM		 1338 if (result != GAS_QUERY_SUCCESS ||
1339 !resp || status_code != WLAN_STATUS_SUCCESS) {
f522bb23
JM		 1340 wpa_printf(MSG_DEBUG, "DPP: GAS query did not succeed");
1341 goto fail;
1342 }
1343
1344 wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response adv_proto",
1345 adv_proto);
1346 wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response (GAS response)",
1347 resp);
1348
1349 if (wpabuf_len(adv_proto) != 10 ||
1350 !(pos = wpabuf_head(adv_proto)) ||
1351 pos[0] != WLAN_EID_ADV_PROTO ||
1352 pos[1] != 8 ||
1353 pos[3] != WLAN_EID_VENDOR_SPECIFIC ||
1354 pos[4] != 5 ||
1355 WPA_GET_BE24(&pos[5]) != OUI_WFA ||
1356 pos[8] != 0x1a ||
1357 pos[9] != 1) {
1358 wpa_printf(MSG_DEBUG,
1359 "DPP: Not a DPP Advertisement Protocol ID");
1360 goto fail;
1361 }
8528994e 1362
f522bb23
JM		 1363 if (dpp_conf_resp_rx(auth, resp) < 0) {
1364 wpa_printf(MSG_DEBUG, "DPP: Configuration attempt failed");
1365 goto fail;
1366 }
1367
1368 wpas_dpp_handle_config_obj(wpa_s, auth);
461d39af
JM		 1369 dpp_auth_deinit(wpa_s->dpp_auth);
1370 wpa_s->dpp_auth = NULL;
1371 return;
1372
1373fail:
1374 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
1375 dpp_auth_deinit(wpa_s->dpp_auth);
1376 wpa_s->dpp_auth = NULL;
1377}
1378
1379
1380static void wpas_dpp_start_gas_client(struct wpa_supplicant *wpa_s)
1381{
1382 struct dpp_authentication *auth = wpa_s->dpp_auth;
1383 struct wpabuf *buf, *conf_req;
1384 char json[100];
1385 int res;
1386
1387 wpa_s->dpp_gas_client = 1;
1388 os_snprintf(json, sizeof(json),
1389 "{\"name\":\"Test\","
1390 "\"wi-fi_tech\":\"infra\","
1391 "\"netRole\":\"%s\"}",
1392 wpa_s->dpp_netrole_ap ? "ap" : "sta");
f9cf7d03
JM		 1393#ifdef CONFIG_TESTING_OPTIONS
1394 if (dpp_test == DPP_TEST_INVALID_CONFIG_ATTR_OBJ_CONF_REQ) {
1395 wpa_printf(MSG_INFO, "DPP: TESTING - invalid Config Attr");
1396 json[29] = 'k'; /* replace "infra" with "knfra" */
1397 }
1398#endif /* CONFIG_TESTING_OPTIONS */
461d39af
JM		 1399 wpa_printf(MSG_DEBUG, "DPP: GAS Config Attributes: %s", json);
1400
1401 offchannel_send_action_done(wpa_s);
1402 wpas_dpp_listen_stop(wpa_s);
1403
1404 conf_req = dpp_build_conf_req(auth, json);
1405 if (!conf_req) {
1406 wpa_printf(MSG_DEBUG,
1407 "DPP: No configuration request data available");
1408 return;
1409 }
1410
1411 buf = gas_build_initial_req(0, 10 + 2 + wpabuf_len(conf_req));
1412 if (!buf) {
1413 wpabuf_free(conf_req);
1414 return;
1415 }
1416
1417 /* Advertisement Protocol IE */
1418 wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO);
1419 wpabuf_put_u8(buf, 8); /* Length */
1420 wpabuf_put_u8(buf, 0x7f);
1421 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
1422 wpabuf_put_u8(buf, 5);
1423 wpabuf_put_be24(buf, OUI_WFA);
1424 wpabuf_put_u8(buf, DPP_OUI_TYPE);
1425 wpabuf_put_u8(buf, 0x01);
1426
1427 /* GAS Query */
1428 wpabuf_put_le16(buf, wpabuf_len(conf_req));
1429 wpabuf_put_buf(buf, conf_req);
1430 wpabuf_free(conf_req);
1431
1432 wpa_printf(MSG_DEBUG, "DPP: GAS request to " MACSTR " (freq %u MHz)",
1433 MAC2STR(auth->peer_mac_addr), auth->curr_freq);
1434
1435 res = gas_query_req(wpa_s->gas, auth->peer_mac_addr, auth->curr_freq,
aca4d84e 1436 1, buf, wpas_dpp_gas_resp_cb, wpa_s);
461d39af
JM		 1437 if (res < 0) {
1438 wpa_msg(wpa_s, MSG_DEBUG, "GAS: Failed to send Query Request");
1439 wpabuf_free(buf);
1440 } else {
1441 wpa_printf(MSG_DEBUG,
1442 "DPP: GAS query started with dialog token %u", res);
1866dfb5 1443 wpa_s->dpp_gas_dialog_token = res;
461d39af
JM		 1444 }
1445}
1446
1447
1448static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator)
1449{
1450 wpa_printf(MSG_DEBUG, "DPP: Authentication succeeded");
1451 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_SUCCESS "init=%d", initiator);
d74963d4
SD		 1452#ifdef CONFIG_TESTING_OPTIONS
1453 if (dpp_test == DPP_TEST_STOP_AT_AUTH_CONF) {
1454 wpa_printf(MSG_INFO,
1455 "DPP: TESTING - stop at Authentication Confirm");
1456 if (wpa_s->dpp_auth->configurator) {
1457 /* Prevent GAS response */
1458 wpa_s->dpp_auth->auth_success = 0;
1459 }
1460 return;
1461 }
1462#endif /* CONFIG_TESTING_OPTIONS */
461d39af
JM		 1463
1464 if (wpa_s->dpp_auth->configurator)
1465 wpas_dpp_start_gas_server(wpa_s);
1466 else
1467 wpas_dpp_start_gas_client(wpa_s);
1468}
1469
1470
30d27b04 1471static void wpas_dpp_rx_auth_resp(struct wpa_supplicant *wpa_s, const u8 *src,
d2709206
JM		 1472 const u8 *hdr, const u8 *buf, size_t len,
1473 unsigned int freq)
30d27b04
JM		 1474{
1475 struct dpp_authentication *auth = wpa_s->dpp_auth;
dc4d271c 1476 struct wpabuf *msg;
30d27b04 1477
d2709206
JM		 1478 wpa_printf(MSG_DEBUG, "DPP: Authentication Response from " MACSTR
1479 " (freq %u MHz)", MAC2STR(src), freq);
30d27b04
JM		 1480
1481 if (!auth) {
1482 wpa_printf(MSG_DEBUG,
1483 "DPP: No DPP Authentication in progress - drop");
1484 return;
1485 }
1486
1487 if (!is_zero_ether_addr(auth->peer_mac_addr) &&
1488 os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) {
1489 wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected "
1490 MACSTR ") - drop", MAC2STR(auth->peer_mac_addr));
1491 return;
1492 }
1493
1494 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
1495
d2709206
JM		 1496 if (auth->curr_freq != freq && auth->neg_freq == freq) {
1497 wpa_printf(MSG_DEBUG,
1498 "DPP: Responder accepted request for different negotiation channel");
1499 auth->curr_freq = freq;
1500 }
1501
f97ace34 1502 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
dc4d271c
JM		 1503 msg = dpp_auth_resp_rx(auth, hdr, buf, len);
1504 if (!msg) {
30d27b04
JM		 1505 if (auth->auth_resp_status == DPP_STATUS_RESPONSE_PENDING) {
1506 wpa_printf(MSG_DEBUG,
1507 "DPP: Start wait for full response");
1508 offchannel_send_action_done(wpa_s);
1509 wpas_dpp_listen_start(wpa_s, auth->curr_freq);
1510 return;
1511 }
1512 wpa_printf(MSG_DEBUG, "DPP: No confirm generated");
1513 return;
1514 }
1515 os_memcpy(auth->peer_mac_addr, src, ETH_ALEN);
1516
af48810b
JM		 1517 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1518 MAC2STR(src), auth->curr_freq, DPP_PA_AUTHENTICATION_CONF);
30d27b04
JM		 1519 offchannel_send_action(wpa_s, auth->curr_freq,
1520 src, wpa_s->own_addr, broadcast,
1521 wpabuf_head(msg), wpabuf_len(msg),
1522 500, wpas_dpp_tx_status, 0);
1523 wpabuf_free(msg);
461d39af 1524 wpa_s->dpp_auth_ok_on_ack = 1;
30d27b04
JM		 1525}
1526
1527
1528static void wpas_dpp_rx_auth_conf(struct wpa_supplicant *wpa_s, const u8 *src,
dc4d271c 1529 const u8 *hdr, const u8 *buf, size_t len)
30d27b04
JM		 1530{
1531 struct dpp_authentication *auth = wpa_s->dpp_auth;
1532
1533 wpa_printf(MSG_DEBUG, "DPP: Authentication Confirmation from " MACSTR,
1534 MAC2STR(src));
1535
1536 if (!auth) {
1537 wpa_printf(MSG_DEBUG,
1538 "DPP: No DPP Authentication in progress - drop");
1539 return;
1540 }
1541
1542 if (os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) {
1543 wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected "
1544 MACSTR ") - drop", MAC2STR(auth->peer_mac_addr));
1545 return;
1546 }
1547
dc4d271c 1548 if (dpp_auth_conf_rx(auth, hdr, buf, len) < 0) {
30d27b04
JM		 1549 wpa_printf(MSG_DEBUG, "DPP: Authentication failed");
1550 return;
1551 }
1552
461d39af 1553 wpas_dpp_auth_success(wpa_s, 0);
30d27b04
JM		 1554}
1555
1556
a0d5c56f
JM		 1557static void wpas_dpp_rx_peer_disc_resp(struct wpa_supplicant *wpa_s,
1558 const u8 *src,
1559 const u8 *buf, size_t len)
1560{
1561 struct wpa_ssid *ssid;
e85b6601
JM		 1562 const u8 *connector, *trans_id, *status;
1563 u16 connector_len, trans_id_len, status_len;
a0d5c56f
JM		 1564 struct dpp_introduction intro;
1565 struct rsn_pmksa_cache_entry *entry;
787615b3
JM		 1566 struct os_time now;
1567 struct os_reltime rnow;
1568 os_time_t expiry;
1569 unsigned int seconds;
e85b6601 1570 enum dpp_status_error res;
a0d5c56f
JM		 1571
1572 wpa_printf(MSG_DEBUG, "DPP: Peer Discovery Response from " MACSTR,
1573 MAC2STR(src));
1574 if (is_zero_ether_addr(wpa_s->dpp_intro_bssid) ||
1575 os_memcmp(src, wpa_s->dpp_intro_bssid, ETH_ALEN) != 0) {
1576 wpa_printf(MSG_DEBUG, "DPP: Not waiting for response from "
1577 MACSTR " - drop", MAC2STR(src));
1578 return;
1579 }
1580 offchannel_send_action_done(wpa_s);
1581
1582 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1583 if (ssid == wpa_s->dpp_intro_network)
1584 break;
1585 }
1586 if (!ssid || !ssid->dpp_connector || !ssid->dpp_netaccesskey ||
1587 !ssid->dpp_csign) {
1588 wpa_printf(MSG_DEBUG,
1589 "DPP: Profile not found for network introduction");
1590 return;
1591 }
1592
85fd8263
JM		 1593 trans_id = dpp_get_attr(buf, len, DPP_ATTR_TRANSACTION_ID,
1594 &trans_id_len);
1595 if (!trans_id || trans_id_len != 1) {
1596 wpa_printf(MSG_DEBUG,
1597 "DPP: Peer did not include Transaction ID");
e85b6601
JM		 1598 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1599 " fail=missing_transaction_id", MAC2STR(src));
85fd8263
JM		 1600 goto fail;
1601 }
1602 if (trans_id[0] != TRANSACTION_ID) {
1603 wpa_printf(MSG_DEBUG,
1604 "DPP: Ignore frame with unexpected Transaction ID %u",
1605 trans_id[0]);
e85b6601
JM		 1606 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1607 " fail=transaction_id_mismatch", MAC2STR(src));
1608 goto fail;
1609 }
1610
1611 status = dpp_get_attr(buf, len, DPP_ATTR_STATUS, &status_len);
1612 if (!status || status_len != 1) {
1613 wpa_printf(MSG_DEBUG, "DPP: Peer did not include Status");
1614 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1615 " fail=missing_status", MAC2STR(src));
1616 goto fail;
1617 }
1618 if (status[0] != DPP_STATUS_OK) {
1619 wpa_printf(MSG_DEBUG,
1620 "DPP: Peer rejected network introduction: Status %u",
1621 status[0]);
1622 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1623 " status=%u", MAC2STR(src), status[0]);
85fd8263
JM		 1624 goto fail;
1625 }
1626
a0d5c56f
JM		 1627 connector = dpp_get_attr(buf, len, DPP_ATTR_CONNECTOR, &connector_len);
1628 if (!connector) {
1629 wpa_printf(MSG_DEBUG,
1630 "DPP: Peer did not include its Connector");
e85b6601
JM		 1631 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1632 " fail=missing_connector", MAC2STR(src));
1633 goto fail;
a0d5c56f
JM		 1634 }
1635
e85b6601
JM		 1636 res = dpp_peer_intro(&intro, ssid->dpp_connector,
1637 ssid->dpp_netaccesskey,
1638 ssid->dpp_netaccesskey_len,
1639 ssid->dpp_csign,
1640 ssid->dpp_csign_len,
1641 connector, connector_len, &expiry);
1642 if (res != DPP_STATUS_OK) {
a0d5c56f
JM		 1643 wpa_printf(MSG_INFO,
1644 "DPP: Network Introduction protocol resulted in failure");
e85b6601
JM		 1645 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1646 " fail=peer_connector_validation_failed", MAC2STR(src));
a0d5c56f
JM		 1647 goto fail;
1648 }
1649
a0d5c56f
JM		 1650 entry = os_zalloc(sizeof(*entry));
1651 if (!entry)
1652 goto fail;
1653 os_memcpy(entry->aa, src, ETH_ALEN);
1654 os_memcpy(entry->pmkid, intro.pmkid, PMKID_LEN);
1655 os_memcpy(entry->pmk, intro.pmk, intro.pmk_len);
1656 entry->pmk_len = intro.pmk_len;
1657 entry->akmp = WPA_KEY_MGMT_DPP;
787615b3
JM		 1658 if (expiry) {
1659 os_get_time(&now);
1660 seconds = expiry - now.sec;
1661 } else {
1662 seconds = 86400 * 7;
1663 }
1664 os_get_reltime(&rnow);
1665 entry->expiration = rnow.sec + seconds;
1666 entry->reauth_time = rnow.sec + seconds;
a0d5c56f
JM		 1667 entry->network_ctx = ssid;
1668 wpa_sm_pmksa_cache_add_entry(wpa_s->wpa, entry);
1669
e85b6601
JM		 1670 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1671 " status=%u", MAC2STR(src), status[0]);
1672
a0d5c56f
JM		 1673 wpa_printf(MSG_DEBUG,
1674 "DPP: Try connection again after successful network introduction");
1675 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
1676 wpa_supplicant_cancel_sched_scan(wpa_s);
1677 wpa_supplicant_req_scan(wpa_s, 0, 0);
1678 }
1679fail:
1680 os_memset(&intro, 0, sizeof(intro));
1681}
1682
1683
3b50f8a4
JM		 1684static int wpas_dpp_allow_ir(struct wpa_supplicant *wpa_s, unsigned int freq)
1685{
1686 int i, j;
1687
1688 if (!wpa_s->hw.modes)
1689 return -1;
1690
1691 for (i = 0; i < wpa_s->hw.num_modes; i++) {
1692 struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
1693
1694 for (j = 0; j < mode->num_channels; j++) {
1695 struct hostapd_channel_data *chan = &mode->channels[j];
1696
1697 if (chan->freq != (int) freq)
1698 continue;
1699
1700 if (chan->flag & (HOSTAPD_CHAN_DISABLED |
1701 HOSTAPD_CHAN_NO_IR |
1702 HOSTAPD_CHAN_RADAR))
1703 continue;
1704
1705 return 1;
1706 }
1707 }
1708
1709 wpa_printf(MSG_DEBUG,
1710 "DPP: Frequency %u MHz not supported or does not allow PKEX initiation in the current channel list",
1711 freq);
1712
1713 return 0;
1714}
1715
1716
1717static int wpas_dpp_pkex_next_channel(struct wpa_supplicant *wpa_s,
1718 struct dpp_pkex *pkex)
1719{
1720 if (pkex->freq == 2437)
1721 pkex->freq = 5745;
1722 else if (pkex->freq == 5745)
1723 pkex->freq = 5220;
1724 else if (pkex->freq == 5220)
1725 pkex->freq = 60480;
1726 else
1727 return -1; /* no more channels to try */
1728
1729 if (wpas_dpp_allow_ir(wpa_s, pkex->freq) == 1) {
1730 wpa_printf(MSG_DEBUG, "DPP: Try to initiate on %u MHz",
1731 pkex->freq);
1732 return 0;
1733 }
1734
1735 /* Could not use this channel - try the next one */
1736 return wpas_dpp_pkex_next_channel(wpa_s, pkex);
1737}
1738
1739
00d2d13d
JM		 1740static void wpas_dpp_pkex_retry_timeout(void *eloop_ctx, void *timeout_ctx)
1741{
1742 struct wpa_supplicant *wpa_s = eloop_ctx;
1743 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
1744
1745 if (!pkex || !pkex->exchange_req)
1746 return;
1747 if (pkex->exch_req_tries >= 5) {
3b50f8a4
JM		 1748 if (wpas_dpp_pkex_next_channel(wpa_s, pkex) < 0) {
1749 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1750 "No response from PKEX peer");
1751 dpp_pkex_free(pkex);
1752 wpa_s->dpp_pkex = NULL;
1753 return;
1754 }
1755 pkex->exch_req_tries = 0;
00d2d13d
JM		 1756 }
1757
1758 pkex->exch_req_tries++;
1759 wpa_printf(MSG_DEBUG, "DPP: Retransmit PKEX Exchange Request (try %u)",
1760 pkex->exch_req_tries);
1761 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1762 MAC2STR(broadcast), pkex->freq, DPP_PA_PKEX_EXCHANGE_REQ);
1763 offchannel_send_action(wpa_s, pkex->freq, broadcast,
1764 wpa_s->own_addr, broadcast,
1765 wpabuf_head(pkex->exchange_req),
1766 wpabuf_len(pkex->exchange_req),
1767 pkex->exch_req_wait_time,
1768 wpas_dpp_tx_pkex_status, 0);
1769}
1770
1771
500ed7f0
JM		 1772static void
1773wpas_dpp_tx_pkex_status(struct wpa_supplicant *wpa_s,
1774 unsigned int freq, const u8 *dst,
1775 const u8 *src, const u8 *bssid,
1776 const u8 *data, size_t data_len,
1777 enum offchannel_send_action_result result)
1778{
af48810b 1779 const char *res_txt;
00d2d13d 1780 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
af48810b
JM		 1781
1782 res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
1783 (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
1784 "FAILED");
500ed7f0
JM		 1785 wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
1786 " result=%s (PKEX)",
af48810b
JM		 1787 freq, MAC2STR(dst), res_txt);
1788 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
1789 " freq=%u result=%s", MAC2STR(dst), freq, res_txt);
e0247e79 1790
00d2d13d 1791 if (!pkex) {
e0247e79
JM		 1792 wpa_printf(MSG_DEBUG,
1793 "DPP: Ignore TX status since there is no ongoing PKEX exchange");
1794 return;
1795 }
1796
00d2d13d 1797 if (pkex->failed) {
e0247e79
JM		 1798 wpa_printf(MSG_DEBUG,
1799 "DPP: Terminate PKEX exchange due to an earlier error");
00d2d13d
JM		 1800 if (pkex->t > pkex->own_bi->pkex_t)
1801 pkex->own_bi->pkex_t = pkex->t;
1802 dpp_pkex_free(pkex);
e0247e79 1803 wpa_s->dpp_pkex = NULL;
00d2d13d
JM		 1804 return;
1805 }
1806
1807 if (pkex->exch_req_wait_time && pkex->exchange_req) {
1808 /* Wait for PKEX Exchange Response frame and retry request if
1809 * no response is seen. */
1810 eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
1811 eloop_register_timeout(pkex->exch_req_wait_time / 1000,
1812 (pkex->exch_req_wait_time % 1000) * 1000,
1813 wpas_dpp_pkex_retry_timeout, wpa_s,
1814 NULL);
e0247e79 1815 }
500ed7f0
JM		 1816}
1817
1818
1819static void
1820wpas_dpp_rx_pkex_exchange_req(struct wpa_supplicant *wpa_s, const u8 *src,
1821 const u8 *buf, size_t len, unsigned int freq)
1822{
1823 struct wpabuf *msg;
1824 unsigned int wait_time;
1825
1826 wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Request from " MACSTR,
1827 MAC2STR(src));
1828
1829 /* TODO: Support multiple PKEX codes by iterating over all the enabled
1830 * values here */
1831
1832 if (!wpa_s->dpp_pkex_code || !wpa_s->dpp_pkex_bi) {
1833 wpa_printf(MSG_DEBUG,
1834 "DPP: No PKEX code configured - ignore request");
1835 return;
1836 }
1837
1838 if (wpa_s->dpp_pkex) {
1839 /* TODO: Support parallel operations */
1840 wpa_printf(MSG_DEBUG,
1841 "DPP: Already in PKEX session - ignore new request");
1842 return;
1843 }
1844
219d4c9f 1845 wpa_s->dpp_pkex = dpp_pkex_rx_exchange_req(wpa_s, wpa_s->dpp_pkex_bi,
500ed7f0
JM		 1846 wpa_s->own_addr, src,
1847 wpa_s->dpp_pkex_identifier,
1848 wpa_s->dpp_pkex_code,
1849 buf, len);
1850 if (!wpa_s->dpp_pkex) {
1851 wpa_printf(MSG_DEBUG,
1852 "DPP: Failed to process the request - ignore it");
1853 return;
1854 }
1855
1856 msg = wpa_s->dpp_pkex->exchange_resp;
1857 wait_time = wpa_s->max_remain_on_chan;
1858 if (wait_time > 2000)
1859 wait_time = 2000;
af48810b
JM		 1860 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1861 MAC2STR(src), freq, DPP_PA_PKEX_EXCHANGE_RESP);
500ed7f0
JM		 1862 offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
1863 broadcast,
1864 wpabuf_head(msg), wpabuf_len(msg),
1865 wait_time, wpas_dpp_tx_pkex_status, 0);
1866}
1867
1868
1869static void
1870wpas_dpp_rx_pkex_exchange_resp(struct wpa_supplicant *wpa_s, const u8 *src,
1871 const u8 *buf, size_t len, unsigned int freq)
1872{
1873 struct wpabuf *msg;
1874 unsigned int wait_time;
1875
1876 wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Response from " MACSTR,
1877 MAC2STR(src));
1878
1879 /* TODO: Support multiple PKEX codes by iterating over all the enabled
1880 * values here */
1881
1882 if (!wpa_s->dpp_pkex || !wpa_s->dpp_pkex->initiator ||
1883 wpa_s->dpp_pkex->exchange_done) {
1884 wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
1885 return;
1886 }
1887
00d2d13d
JM		 1888 eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
1889 wpa_s->dpp_pkex->exch_req_wait_time = 0;
1890
af4103e5 1891 msg = dpp_pkex_rx_exchange_resp(wpa_s->dpp_pkex, src, buf, len);
500ed7f0
JM		 1892 if (!msg) {
1893 wpa_printf(MSG_DEBUG, "DPP: Failed to process the response");
1894 return;
1895 }
1896
1897 wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Request to " MACSTR,
1898 MAC2STR(src));
1899
1900 wait_time = wpa_s->max_remain_on_chan;
1901 if (wait_time > 2000)
1902 wait_time = 2000;
af48810b
JM		 1903 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1904 MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_REQ);
500ed7f0
JM		 1905 offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
1906 broadcast,
1907 wpabuf_head(msg), wpabuf_len(msg),
1908 wait_time, wpas_dpp_tx_pkex_status, 0);
1909 wpabuf_free(msg);
1910}
1911
1912
de029861
JM		 1913static struct dpp_bootstrap_info *
1914wpas_dpp_pkex_finish(struct wpa_supplicant *wpa_s, const u8 *peer,
1915 unsigned int freq)
1916{
1917 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
1918 struct dpp_bootstrap_info *bi;
1919
1920 bi = os_zalloc(sizeof(*bi));
1921 if (!bi)
1922 return NULL;
1923 bi->id = wpas_dpp_next_id(wpa_s);
1924 bi->type = DPP_BOOTSTRAP_PKEX;
1925 os_memcpy(bi->mac_addr, peer, ETH_ALEN);
1926 bi->num_freq = 1;
1927 bi->freq[0] = freq;
1928 bi->curve = pkex->own_bi->curve;
1929 bi->pubkey = pkex->peer_bootstrap_key;
1930 pkex->peer_bootstrap_key = NULL;
1931 dpp_pkex_free(pkex);
1932 wpa_s->dpp_pkex = NULL;
1933 if (dpp_bootstrap_key_hash(bi) < 0) {
1934 dpp_bootstrap_info_free(bi);
1935 return NULL;
1936 }
1937 dl_list_add(&wpa_s->dpp_bootstrap, &bi->list);
1938 return bi;
1939}
1940
1941
500ed7f0
JM		 1942static void
1943wpas_dpp_rx_pkex_commit_reveal_req(struct wpa_supplicant *wpa_s, const u8 *src,
4be5bc98
JM		 1944 const u8 *hdr, const u8 *buf, size_t len,
1945 unsigned int freq)
500ed7f0
JM		 1946{
1947 struct wpabuf *msg;
1948 unsigned int wait_time;
1949 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
500ed7f0
JM		 1950
1951 wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Request from " MACSTR,
1952 MAC2STR(src));
1953
1954 if (!pkex || pkex->initiator || !pkex->exchange_done) {
1955 wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
1956 return;
1957 }
1958
4be5bc98 1959 msg = dpp_pkex_rx_commit_reveal_req(pkex, hdr, buf, len);
500ed7f0
JM		 1960 if (!msg) {
1961 wpa_printf(MSG_DEBUG, "DPP: Failed to process the request");
039b8e73
JM		 1962 if (pkex->failed) {
1963 wpa_printf(MSG_DEBUG, "DPP: Terminate PKEX exchange");
29ab69e4
JM		 1964 if (pkex->t > pkex->own_bi->pkex_t)
1965 pkex->own_bi->pkex_t = pkex->t;
039b8e73
JM		 1966 dpp_pkex_free(wpa_s->dpp_pkex);
1967 wpa_s->dpp_pkex = NULL;
1968 }
500ed7f0
JM		 1969 return;
1970 }
1971
1972 wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Response to "
1973 MACSTR, MAC2STR(src));
1974
1975 wait_time = wpa_s->max_remain_on_chan;
1976 if (wait_time > 2000)
1977 wait_time = 2000;
af48810b
JM		 1978 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1979 MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_RESP);
500ed7f0
JM		 1980 offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
1981 broadcast,
1982 wpabuf_head(msg), wpabuf_len(msg),
1983 wait_time, wpas_dpp_tx_pkex_status, 0);
1984 wpabuf_free(msg);
1985
de029861 1986 wpas_dpp_pkex_finish(wpa_s, src, freq);
500ed7f0
JM		 1987}
1988
1989
1990static void
1991wpas_dpp_rx_pkex_commit_reveal_resp(struct wpa_supplicant *wpa_s, const u8 *src,
4be5bc98 1992 const u8 *hdr, const u8 *buf, size_t len,
500ed7f0
JM		 1993 unsigned int freq)
1994{
1995 int res;
de029861 1996 struct dpp_bootstrap_info *bi;
500ed7f0
JM		 1997 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
1998 char cmd[500];
1999
2000 wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Response from " MACSTR,
2001 MAC2STR(src));
2002
2003 if (!pkex || !pkex->initiator || !pkex->exchange_done) {
2004 wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
2005 return;
2006 }
2007
4be5bc98 2008 res = dpp_pkex_rx_commit_reveal_resp(pkex, hdr, buf, len);
500ed7f0
JM		 2009 if (res < 0) {
2010 wpa_printf(MSG_DEBUG, "DPP: Failed to process the response");
2011 return;
2012 }
2013
de029861 2014 bi = wpas_dpp_pkex_finish(wpa_s, src, freq);
500ed7f0
JM		 2015 if (!bi)
2016 return;
500ed7f0
JM		 2017
2018 os_snprintf(cmd, sizeof(cmd), " peer=%u %s",
2019 bi->id,
2020 wpa_s->dpp_pkex_auth_cmd ? wpa_s->dpp_pkex_auth_cmd : "");
2021 wpa_printf(MSG_DEBUG,
2022 "DPP: Start authentication after PKEX with parameters: %s",
2023 cmd);
2024 if (wpas_dpp_auth_init(wpa_s, cmd) < 0) {
2025 wpa_printf(MSG_DEBUG,
2026 "DPP: Authentication initialization failed");
2027 return;
2028 }
2029}
2030
2031
30d27b04
JM		 2032void wpas_dpp_rx_action(struct wpa_supplicant *wpa_s, const u8 *src,
2033 const u8 *buf, size_t len, unsigned int freq)
2034{
8c19ea3f 2035 u8 crypto_suite;
30d27b04 2036 enum dpp_public_action_frame_type type;
dc4d271c 2037 const u8 *hdr;
29ab69e4 2038 unsigned int pkex_t;
30d27b04 2039
dc4d271c
JM		 2040 if (len < DPP_HDR_LEN)
2041 return;
2042 if (WPA_GET_BE24(buf) != OUI_WFA || buf[3] != DPP_OUI_TYPE)
30d27b04 2043 return;
dc4d271c
JM		 2044 hdr = buf;
2045 buf += 4;
2046 len -= 4;
8c19ea3f
JM		 2047 crypto_suite = *buf++;
2048 type = *buf++;
2049 len -= 2;
30d27b04
JM		 2050
2051 wpa_printf(MSG_DEBUG,
8c19ea3f 2052 "DPP: Received DPP Public Action frame crypto suite %u type %d from "
30d27b04 2053 MACSTR " freq=%u",
8c19ea3f
JM		 2054 crypto_suite, type, MAC2STR(src), freq);
2055 if (crypto_suite != 1) {
2056 wpa_printf(MSG_DEBUG, "DPP: Unsupported crypto suite %u",
2057 crypto_suite);
a7073934
JM		 2058 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR
2059 " freq=%u type=%d ignore=unsupported-crypto-suite",
2060 MAC2STR(src), freq, type);
8c19ea3f
JM		 2061 return;
2062 }
30d27b04 2063 wpa_hexdump(MSG_MSGDUMP, "DPP: Received message attributes", buf, len);
a7073934
JM		 2064 if (dpp_check_attrs(buf, len) < 0) {
2065 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR
2066 " freq=%u type=%d ignore=invalid-attributes",
2067 MAC2STR(src), freq, type);
30d27b04 2068 return;
a7073934
JM		 2069 }
2070 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR " freq=%u type=%d",
2071 MAC2STR(src), freq, type);
30d27b04
JM		 2072
2073 switch (type) {
2074 case DPP_PA_AUTHENTICATION_REQ:
dc4d271c 2075 wpas_dpp_rx_auth_req(wpa_s, src, hdr, buf, len, freq);
30d27b04
JM		 2076 break;
2077 case DPP_PA_AUTHENTICATION_RESP:
d2709206 2078 wpas_dpp_rx_auth_resp(wpa_s, src, hdr, buf, len, freq);
30d27b04
JM		 2079 break;
2080 case DPP_PA_AUTHENTICATION_CONF:
dc4d271c 2081 wpas_dpp_rx_auth_conf(wpa_s, src, hdr, buf, len);
30d27b04 2082 break;
a0d5c56f
JM		 2083 case DPP_PA_PEER_DISCOVERY_RESP:
2084 wpas_dpp_rx_peer_disc_resp(wpa_s, src, buf, len);
2085 break;
500ed7f0
JM		 2086 case DPP_PA_PKEX_EXCHANGE_REQ:
2087 wpas_dpp_rx_pkex_exchange_req(wpa_s, src, buf, len, freq);
2088 break;
2089 case DPP_PA_PKEX_EXCHANGE_RESP:
2090 wpas_dpp_rx_pkex_exchange_resp(wpa_s, src, buf, len, freq);
2091 break;
2092 case DPP_PA_PKEX_COMMIT_REVEAL_REQ:
4be5bc98
JM		 2093 wpas_dpp_rx_pkex_commit_reveal_req(wpa_s, src, hdr, buf, len,
2094 freq);
500ed7f0
JM		 2095 break;
2096 case DPP_PA_PKEX_COMMIT_REVEAL_RESP:
4be5bc98
JM		 2097 wpas_dpp_rx_pkex_commit_reveal_resp(wpa_s, src, hdr, buf, len,
2098 freq);
500ed7f0 2099 break;
30d27b04
JM		 2100 default:
2101 wpa_printf(MSG_DEBUG,
2102 "DPP: Ignored unsupported frame subtype %d", type);
2103 break;
2104 }
29ab69e4
JM		 2105
2106 if (wpa_s->dpp_pkex)
2107 pkex_t = wpa_s->dpp_pkex->t;
2108 else if (wpa_s->dpp_pkex_bi)
2109 pkex_t = wpa_s->dpp_pkex_bi->pkex_t;
2110 else
2111 pkex_t = 0;
2112 if (pkex_t >= PKEX_COUNTER_T_LIMIT) {
2113 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_PKEX_T_LIMIT "id=0");
2114 wpas_dpp_pkex_remove(wpa_s, "*");
2115 }
30d27b04
JM		 2116}
2117
2118
461d39af
JM		 2119static struct wpabuf *
2120wpas_dpp_gas_req_handler(void *ctx, const u8 *sa, const u8 *query,
2121 size_t query_len)
2122{
2123 struct wpa_supplicant *wpa_s = ctx;
2124 struct dpp_authentication *auth = wpa_s->dpp_auth;
2125 struct wpabuf *resp;
2126
2127 wpa_printf(MSG_DEBUG, "DPP: GAS request from " MACSTR,
2128 MAC2STR(sa));
2129 if (!auth || !auth->auth_success ||
2130 os_memcmp(sa, auth->peer_mac_addr, ETH_ALEN) != 0) {
2131 wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress");
2132 return NULL;
2133 }
2134 wpa_hexdump(MSG_DEBUG,
2135 "DPP: Received Configuration Request (GAS Query Request)",
2136 query, query_len);
fd920954
JM		 2137 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_REQ_RX "src=" MACSTR,
2138 MAC2STR(sa));
461d39af
JM		 2139 resp = dpp_conf_req_rx(auth, query, query_len);
2140 if (!resp)
2141 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
82feacce 2142 auth->conf_resp = resp;
461d39af
JM		 2143 return resp;
2144}
2145
2146
2147static void
2148wpas_dpp_gas_status_handler(void *ctx, struct wpabuf *resp, int ok)
2149{
2150 struct wpa_supplicant *wpa_s = ctx;
2151 struct dpp_authentication *auth = wpa_s->dpp_auth;
2152
2153 if (!auth) {
2154 wpabuf_free(resp);
2155 return;
2156 }
82feacce
JM		 2157 if (auth->conf_resp != resp) {
2158 wpa_printf(MSG_DEBUG,
2159 "DPP: Ignore GAS status report (ok=%d) for unknown response",
2160 ok);
2161 wpabuf_free(resp);
2162 return;
2163 }
461d39af
JM		 2164
2165 wpa_printf(MSG_DEBUG, "DPP: Configuration exchange completed (ok=%d)",
2166 ok);
2167 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
95b0104a 2168 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
461d39af
JM		 2169 offchannel_send_action_done(wpa_s);
2170 wpas_dpp_listen_stop(wpa_s);
2171 if (ok)
2172 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_SENT);
2173 else
2174 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
2175 dpp_auth_deinit(wpa_s->dpp_auth);
2176 wpa_s->dpp_auth = NULL;
2177 wpabuf_free(resp);
2178}
2179
2180
2181static unsigned int wpas_dpp_next_configurator_id(struct wpa_supplicant *wpa_s)
2182{
2183 struct dpp_configurator *conf;
2184 unsigned int max_id = 0;
2185
2186 dl_list_for_each(conf, &wpa_s->dpp_configurator,
2187 struct dpp_configurator, list) {
2188 if (conf->id > max_id)
2189 max_id = conf->id;
2190 }
2191 return max_id + 1;
2192}
2193
2194
2195int wpas_dpp_configurator_add(struct wpa_supplicant *wpa_s, const char *cmd)
2196{
c77e2ff0 2197 char *curve = NULL;
461d39af
JM		 2198 char *key = NULL;
2199 u8 *privkey = NULL;
2200 size_t privkey_len = 0;
2201 int ret = -1;
2202 struct dpp_configurator *conf = NULL;
2203
461d39af
JM		 2204 curve = get_param(cmd, " curve=");
2205 key = get_param(cmd, " key=");
2206
2207 if (key) {
2208 privkey_len = os_strlen(key) / 2;
2209 privkey = os_malloc(privkey_len);
2210 if (!privkey ||
2211 hexstr2bin(key, privkey, privkey_len) < 0)
2212 goto fail;
2213 }
2214
2215 conf = dpp_keygen_configurator(curve, privkey, privkey_len);
2216 if (!conf)
2217 goto fail;
2218
461d39af
JM		 2219 conf->id = wpas_dpp_next_configurator_id(wpa_s);
2220 dl_list_add(&wpa_s->dpp_configurator, &conf->list);
2221 ret = conf->id;
2222 conf = NULL;
2223fail:
2224 os_free(curve);
461d39af
JM		 2225 str_clear_free(key);
2226 bin_clear_free(privkey, privkey_len);
2227 dpp_configurator_free(conf);
2228 return ret;
2229}
2230
2231
2232static int dpp_configurator_del(struct wpa_supplicant *wpa_s, unsigned int id)
2233{
2234 struct dpp_configurator *conf, *tmp;
2235 int found = 0;
2236
2237 dl_list_for_each_safe(conf, tmp, &wpa_s->dpp_configurator,
2238 struct dpp_configurator, list) {
2239 if (id && conf->id != id)
2240 continue;
2241 found = 1;
2242 dl_list_del(&conf->list);
2243 dpp_configurator_free(conf);
2244 }
2245
2246 if (id == 0)
2247 return 0; /* flush succeeds regardless of entries found */
2248 return found ? 0 : -1;
2249}
2250
2251
2252int wpas_dpp_configurator_remove(struct wpa_supplicant *wpa_s, const char *id)
2253{
2254 unsigned int id_val;
2255
2256 if (os_strcmp(id, "*") == 0) {
2257 id_val = 0;
2258 } else {
2259 id_val = atoi(id);
2260 if (id_val == 0)
2261 return -1;
2262 }
2263
2264 return dpp_configurator_del(wpa_s, id_val);
2265}
2266
2267
f522bb23
JM		 2268int wpas_dpp_configurator_sign(struct wpa_supplicant *wpa_s, const char *cmd)
2269{
2270 struct dpp_authentication *auth;
2271 int ret = -1;
2272 char *curve = NULL;
2273
2274 auth = os_zalloc(sizeof(*auth));
2275 if (!auth)
2276 return -1;
2277
2278 curve = get_param(cmd, " curve=");
e22c2338 2279 wpas_dpp_set_testing_options(wpa_s, auth);
a00d65e7
JM		 2280 if (wpas_dpp_set_configurator(wpa_s, auth, cmd) == 0 &&
2281 dpp_configurator_own_config(auth, curve, 0) == 0) {
f522bb23
JM		 2282 wpas_dpp_handle_config_obj(wpa_s, auth);
2283 ret = 0;
2284 }
2285
2286 dpp_auth_deinit(auth);
2287 os_free(curve);
2288
2289 return ret;
2290}
2291
2292
8179ae3a
PK		 2293int wpas_dpp_configurator_get_key(struct wpa_supplicant *wpa_s, unsigned int id,
2294 char *buf, size_t buflen)
2295{
2296 struct dpp_configurator *conf;
2297
2298 conf = dpp_configurator_get_id(wpa_s, id);
2299 if (!conf)
2300 return -1;
2301
2302 return dpp_configurator_get_key(conf, buf, buflen);
2303}
2304
2305
a0d5c56f
JM		 2306static void
2307wpas_dpp_tx_introduction_status(struct wpa_supplicant *wpa_s,
2308 unsigned int freq, const u8 *dst,
2309 const u8 *src, const u8 *bssid,
2310 const u8 *data, size_t data_len,
2311 enum offchannel_send_action_result result)
2312{
af48810b
JM		 2313 const char *res_txt;
2314
2315 res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
2316 (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
2317 "FAILED");
a0d5c56f
JM		 2318 wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
2319 " result=%s (DPP Peer Discovery Request)",
af48810b
JM		 2320 freq, MAC2STR(dst), res_txt);
2321 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
2322 " freq=%u result=%s", MAC2STR(dst), freq, res_txt);
a0d5c56f
JM		 2323 /* TODO: Time out wait for response more quickly in error cases? */
2324}
2325
2326
2327int wpas_dpp_check_connect(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
2328 struct wpa_bss *bss)
2329{
2330 struct os_time now;
2331 struct wpabuf *msg;
2332 unsigned int wait_time;
2333
2334 if (!(ssid->key_mgmt & WPA_KEY_MGMT_DPP) || !bss)
2335 return 0; /* Not using DPP AKM - continue */
2336 if (wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid))
2337 return 0; /* PMKSA exists for DPP AKM - continue */
2338
2339 if (!ssid->dpp_connector || !ssid->dpp_netaccesskey ||
2340 !ssid->dpp_csign) {
2341 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR
2342 "missing %s",
2343 !ssid->dpp_connector ? "Connector" :
2344 (!ssid->dpp_netaccesskey ? "netAccessKey" :
2345 "C-sign-key"));
2346 return -1;
2347 }
2348
2349 os_get_time(&now);
2350
a0d5c56f 2351 if (ssid->dpp_netaccesskey_expiry &&
3ca4be1e 2352 (os_time_t) ssid->dpp_netaccesskey_expiry < now.sec) {
a0d5c56f
JM		 2353 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR
2354 "netAccessKey expired");
2355 return -1;
2356 }
2357
2358 wpa_printf(MSG_DEBUG,
2359 "DPP: Starting network introduction protocol to derive PMKSA for "
2360 MACSTR, MAC2STR(bss->bssid));
2361
2362 msg = dpp_alloc_msg(DPP_PA_PEER_DISCOVERY_REQ,
85fd8263 2363 5 + 4 + os_strlen(ssid->dpp_connector));
a0d5c56f
JM		 2364 if (!msg)
2365 return -1;
2366
a306ed5a
JM		 2367#ifdef CONFIG_TESTING_OPTIONS
2368 if (dpp_test == DPP_TEST_NO_TRANSACTION_ID_PEER_DISC_REQ) {
2369 wpa_printf(MSG_INFO, "DPP: TESTING - no Transaction ID");
2370 goto skip_trans_id;
2371 }
55c6c858
JM		 2372 if (dpp_test == DPP_TEST_INVALID_TRANSACTION_ID_PEER_DISC_REQ) {
2373 wpa_printf(MSG_INFO, "DPP: TESTING - invalid Transaction ID");
2374 wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID);
2375 wpabuf_put_le16(msg, 0);
2376 goto skip_trans_id;
2377 }
a306ed5a
JM		 2378#endif /* CONFIG_TESTING_OPTIONS */
2379
85fd8263
JM		 2380 /* Transaction ID */
2381 wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID);
2382 wpabuf_put_le16(msg, 1);
2383 wpabuf_put_u8(msg, TRANSACTION_ID);
2384
a306ed5a
JM		 2385#ifdef CONFIG_TESTING_OPTIONS
2386skip_trans_id:
2387 if (dpp_test == DPP_TEST_NO_CONNECTOR_PEER_DISC_REQ) {
2388 wpa_printf(MSG_INFO, "DPP: TESTING - no Connector");
2389 goto skip_connector;
2390 }
4b8de0c9
JM		 2391 if (dpp_test == DPP_TEST_INVALID_CONNECTOR_PEER_DISC_REQ) {
2392 char *connector;
2393
2394 wpa_printf(MSG_INFO, "DPP: TESTING - invalid Connector");
2395 connector = dpp_corrupt_connector_signature(
2396 ssid->dpp_connector);
2397 if (!connector) {
2398 wpabuf_free(msg);
2399 return -1;
2400 }
2401 wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR);
2402 wpabuf_put_le16(msg, os_strlen(connector));
2403 wpabuf_put_str(msg, connector);
2404 os_free(connector);
2405 goto skip_connector;
2406 }
a306ed5a
JM		 2407#endif /* CONFIG_TESTING_OPTIONS */
2408
a0d5c56f
JM		 2409 /* DPP Connector */
2410 wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR);
2411 wpabuf_put_le16(msg, os_strlen(ssid->dpp_connector));
2412 wpabuf_put_str(msg, ssid->dpp_connector);
2413
a306ed5a
JM		 2414#ifdef CONFIG_TESTING_OPTIONS
2415skip_connector:
2416#endif /* CONFIG_TESTING_OPTIONS */
2417
a0d5c56f
JM		 2418 /* TODO: Timeout on AP response */
2419 wait_time = wpa_s->max_remain_on_chan;
2420 if (wait_time > 2000)
2421 wait_time = 2000;
af48810b
JM		 2422 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
2423 MAC2STR(bss->bssid), bss->freq, DPP_PA_PEER_DISCOVERY_REQ);
a0d5c56f
JM		 2424 offchannel_send_action(wpa_s, bss->freq, bss->bssid, wpa_s->own_addr,
2425 broadcast,
2426 wpabuf_head(msg), wpabuf_len(msg),
2427 wait_time, wpas_dpp_tx_introduction_status, 0);
2428 wpabuf_free(msg);
2429
2430 /* Request this connection attempt to terminate - new one will be
2431 * started when network introduction protocol completes */
2432 os_memcpy(wpa_s->dpp_intro_bssid, bss->bssid, ETH_ALEN);
2433 wpa_s->dpp_intro_network = ssid;
2434 return 1;
2435}
2436
2437
500ed7f0
JM		 2438int wpas_dpp_pkex_add(struct wpa_supplicant *wpa_s, const char *cmd)
2439{
2440 struct dpp_bootstrap_info *own_bi;
2441 const char *pos, *end;
2442 unsigned int wait_time;
2443
2444 pos = os_strstr(cmd, " own=");
2445 if (!pos)
2446 return -1;
2447 pos += 5;
2448 own_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
2449 if (!own_bi) {
2450 wpa_printf(MSG_DEBUG,
2451 "DPP: Identified bootstrap info not found");
2452 return -1;
2453 }
2454 if (own_bi->type != DPP_BOOTSTRAP_PKEX) {
2455 wpa_printf(MSG_DEBUG,
2456 "DPP: Identified bootstrap info not for PKEX");
2457 return -1;
2458 }
2459 wpa_s->dpp_pkex_bi = own_bi;
29ab69e4 2460 own_bi->pkex_t = 0; /* clear pending errors on new code */
500ed7f0
JM		 2461
2462 os_free(wpa_s->dpp_pkex_identifier);
2463 wpa_s->dpp_pkex_identifier = NULL;
2464 pos = os_strstr(cmd, " identifier=");
2465 if (pos) {
2466 pos += 12;
2467 end = os_strchr(pos, ' ');
2468 if (!end)
2469 return -1;
2470 wpa_s->dpp_pkex_identifier = os_malloc(end - pos + 1);
2471 if (!wpa_s->dpp_pkex_identifier)
2472 return -1;
2473 os_memcpy(wpa_s->dpp_pkex_identifier, pos, end - pos);
2474 wpa_s->dpp_pkex_identifier[end - pos] = '\0';
2475 }
2476
2477 pos = os_strstr(cmd, " code=");
2478 if (!pos)
2479 return -1;
2480 os_free(wpa_s->dpp_pkex_code);
2481 wpa_s->dpp_pkex_code = os_strdup(pos + 6);
2482 if (!wpa_s->dpp_pkex_code)
2483 return -1;
2484
2485 if (os_strstr(cmd, " init=1")) {
00d2d13d 2486 struct dpp_pkex *pkex;
500ed7f0
JM		 2487 struct wpabuf *msg;
2488
2489 wpa_printf(MSG_DEBUG, "DPP: Initiating PKEX");
2490 dpp_pkex_free(wpa_s->dpp_pkex);
219d4c9f 2491 wpa_s->dpp_pkex = dpp_pkex_init(wpa_s, own_bi, wpa_s->own_addr,
500ed7f0
JM		 2492 wpa_s->dpp_pkex_identifier,
2493 wpa_s->dpp_pkex_code);
00d2d13d
JM		 2494 pkex = wpa_s->dpp_pkex;
2495 if (!pkex)
500ed7f0
JM		 2496 return -1;
2497
00d2d13d 2498 msg = pkex->exchange_req;
500ed7f0
JM		 2499 wait_time = wpa_s->max_remain_on_chan;
2500 if (wait_time > 2000)
2501 wait_time = 2000;
00d2d13d 2502 pkex->freq = 2437;
af48810b
JM		 2503 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR
2504 " freq=%u type=%d",
00d2d13d
JM		 2505 MAC2STR(broadcast), pkex->freq,
2506 DPP_PA_PKEX_EXCHANGE_REQ);
2507 offchannel_send_action(wpa_s, pkex->freq, broadcast,
2508 wpa_s->own_addr, broadcast,
500ed7f0
JM		 2509 wpabuf_head(msg), wpabuf_len(msg),
2510 wait_time, wpas_dpp_tx_pkex_status, 0);
00d2d13d
JM		 2511 if (wait_time == 0)
2512 wait_time = 2000;
2513 pkex->exch_req_wait_time = wait_time;
2514 pkex->exch_req_tries = 1;
500ed7f0
JM		 2515 }
2516
2517 /* TODO: Support multiple PKEX info entries */
2518
2519 os_free(wpa_s->dpp_pkex_auth_cmd);
2520 wpa_s->dpp_pkex_auth_cmd = os_strdup(cmd);
2521
2522 return 1;
2523}
2524
2525
2526int wpas_dpp_pkex_remove(struct wpa_supplicant *wpa_s, const char *id)
2527{
2528 unsigned int id_val;
2529
2530 if (os_strcmp(id, "*") == 0) {
2531 id_val = 0;
2532 } else {
2533 id_val = atoi(id);
2534 if (id_val == 0)
2535 return -1;
2536 }
2537
2538 if ((id_val != 0 && id_val != 1) || !wpa_s->dpp_pkex_code)
2539 return -1;
2540
2541 /* TODO: Support multiple PKEX entries */
2542 os_free(wpa_s->dpp_pkex_code);
2543 wpa_s->dpp_pkex_code = NULL;
2544 os_free(wpa_s->dpp_pkex_identifier);
2545 wpa_s->dpp_pkex_identifier = NULL;
2546 os_free(wpa_s->dpp_pkex_auth_cmd);
2547 wpa_s->dpp_pkex_auth_cmd = NULL;
2548 wpa_s->dpp_pkex_bi = NULL;
2549 /* TODO: Remove dpp_pkex only if it is for the identified PKEX code */
2550 dpp_pkex_free(wpa_s->dpp_pkex);
2551 wpa_s->dpp_pkex = NULL;
2552 return 0;
2553}
2554
2555
c1d37739
JM		 2556void wpas_dpp_stop(struct wpa_supplicant *wpa_s)
2557{
2558 dpp_auth_deinit(wpa_s->dpp_auth);
2559 wpa_s->dpp_auth = NULL;
ed62d401
JM		 2560 dpp_pkex_free(wpa_s->dpp_pkex);
2561 wpa_s->dpp_pkex = NULL;
1866dfb5
JM		 2562 if (wpa_s->dpp_gas_client && wpa_s->dpp_gas_dialog_token >= 0)
2563 gas_query_stop(wpa_s->gas, wpa_s->dpp_gas_dialog_token);
c1d37739
JM		 2564}
2565
2566
be27e185
JM		 2567int wpas_dpp_init(struct wpa_supplicant *wpa_s)
2568{
461d39af
JM		 2569 u8 adv_proto_id[7];
2570
2571 adv_proto_id[0] = WLAN_EID_VENDOR_SPECIFIC;
2572 adv_proto_id[1] = 5;
2573 WPA_PUT_BE24(&adv_proto_id[2], OUI_WFA);
2574 adv_proto_id[5] = DPP_OUI_TYPE;
2575 adv_proto_id[6] = 0x01;
2576
2577 if (gas_server_register(wpa_s->gas_server, adv_proto_id,
2578 sizeof(adv_proto_id), wpas_dpp_gas_req_handler,
2579 wpas_dpp_gas_status_handler, wpa_s) < 0)
2580 return -1;
be27e185 2581 dl_list_init(&wpa_s->dpp_bootstrap);
461d39af 2582 dl_list_init(&wpa_s->dpp_configurator);
be27e185
JM		 2583 wpa_s->dpp_init_done = 1;
2584 return 0;
2585}
2586
2587
2588void wpas_dpp_deinit(struct wpa_supplicant *wpa_s)
2589{
461d39af
JM		 2590#ifdef CONFIG_TESTING_OPTIONS
2591 os_free(wpa_s->dpp_config_obj_override);
2592 wpa_s->dpp_config_obj_override = NULL;
2593 os_free(wpa_s->dpp_discovery_override);
2594 wpa_s->dpp_discovery_override = NULL;
2595 os_free(wpa_s->dpp_groups_override);
2596 wpa_s->dpp_groups_override = NULL;
461d39af
JM		 2597 wpa_s->dpp_ignore_netaccesskey_mismatch = 0;
2598#endif /* CONFIG_TESTING_OPTIONS */
be27e185
JM		 2599 if (!wpa_s->dpp_init_done)
2600 return;
00d2d13d 2601 eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
30d27b04 2602 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
f97ace34 2603 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
95b0104a 2604 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
30d27b04
JM		 2605 offchannel_send_action_done(wpa_s);
2606 wpas_dpp_listen_stop(wpa_s);
be27e185 2607 dpp_bootstrap_del(wpa_s, 0);
461d39af 2608 dpp_configurator_del(wpa_s, 0);
fa5c9074 2609 wpas_dpp_stop(wpa_s);
500ed7f0 2610 wpas_dpp_pkex_remove(wpa_s, "*");
a0d5c56f 2611 os_memset(wpa_s->dpp_intro_bssid, 0, ETH_ALEN);
b65b22d6
JM		 2612 os_free(wpa_s->dpp_configurator_params);
2613 wpa_s->dpp_configurator_params = NULL;
be27e185 2614}
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