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Use correct WPA_ALG_* values to compare for enum wpa_alg
[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
b65b22d6
JM		 530static void 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;
461d39af 543
b65b22d6
JM		 544 if (!cmd)
545 return;
461d39af 546
b65b22d6 547 wpa_printf(MSG_DEBUG, "DPP: Set configurator parameters: %s", cmd);
68cb6dce
JM		 548 pos = os_strstr(cmd, " ssid=");
549 if (pos) {
550 pos += 6;
551 end = os_strchr(pos, ' ');
552 ssid_len = end ? (size_t) (end - pos) : os_strlen(pos);
553 ssid_len /= 2;
554 if (ssid_len > sizeof(ssid) ||
555 hexstr2bin(pos, ssid, ssid_len) < 0)
556 goto fail;
557 }
558
35f06421
JM		 559 pos = os_strstr(cmd, " pass=");
560 if (pos) {
561 pos += 6;
562 end = os_strchr(pos, ' ');
563 pass_len = end ? (size_t) (end - pos) : os_strlen(pos);
564 pass_len /= 2;
565 if (pass_len > sizeof(pass) - 1 || pass_len < 8 ||
566 hexstr2bin(pos, (u8 *) pass, pass_len) < 0)
567 goto fail;
568 }
569
5030d7d9
JM		 570 pos = os_strstr(cmd, " psk=");
571 if (pos) {
572 pos += 5;
573 if (hexstr2bin(pos, psk, PMK_LEN) < 0)
574 goto fail;
575 psk_set = 1;
576 }
577
461d39af
JM		 578 if (os_strstr(cmd, " conf=sta-")) {
579 conf_sta = os_zalloc(sizeof(struct dpp_configuration));
580 if (!conf_sta)
581 goto fail;
68cb6dce
JM		 582 os_memcpy(conf_sta->ssid, ssid, ssid_len);
583 conf_sta->ssid_len = ssid_len;
e3a5882b
JM		 584 if (os_strstr(cmd, " conf=sta-psk") ||
585 os_strstr(cmd, " conf=sta-sae") ||
586 os_strstr(cmd, " conf=sta-psk-sae")) {
587 if (os_strstr(cmd, " conf=sta-psk-sae"))
588 conf_sta->akm = DPP_AKM_PSK_SAE;
589 else if (os_strstr(cmd, " conf=sta-sae"))
590 conf_sta->akm = DPP_AKM_SAE;
591 else
592 conf_sta->akm = DPP_AKM_PSK;
5030d7d9
JM		 593 if (psk_set) {
594 os_memcpy(conf_sta->psk, psk, PMK_LEN);
595 } else {
596 conf_sta->passphrase = os_strdup(pass);
597 if (!conf_sta->passphrase)
598 goto fail;
599 }
461d39af 600 } else if (os_strstr(cmd, " conf=sta-dpp")) {
e3a5882b 601 conf_sta->akm = DPP_AKM_DPP;
461d39af
JM		 602 } else {
603 goto fail;
604 }
605 }
606
607 if (os_strstr(cmd, " conf=ap-")) {
608 conf_ap = os_zalloc(sizeof(struct dpp_configuration));
609 if (!conf_ap)
610 goto fail;
68cb6dce
JM		 611 os_memcpy(conf_ap->ssid, ssid, ssid_len);
612 conf_ap->ssid_len = ssid_len;
e3a5882b
JM		 613 if (os_strstr(cmd, " conf=ap-psk") ||
614 os_strstr(cmd, " conf=ap-sae") ||
615 os_strstr(cmd, " conf=ap-psk-sae")) {
616 if (os_strstr(cmd, " conf=ap-psk-sae"))
617 conf_ap->akm = DPP_AKM_PSK_SAE;
618 else if (os_strstr(cmd, " conf=ap-sae"))
619 conf_ap->akm = DPP_AKM_SAE;
620 else
621 conf_ap->akm = DPP_AKM_PSK;
5030d7d9
JM		 622 if (psk_set) {
623 os_memcpy(conf_ap->psk, psk, PMK_LEN);
624 } else {
625 conf_ap->passphrase = os_strdup(pass);
626 if (!conf_ap->passphrase)
627 goto fail;
628 }
461d39af 629 } else if (os_strstr(cmd, " conf=ap-dpp")) {
e3a5882b 630 conf_ap->akm = DPP_AKM_DPP;
461d39af
JM		 631 } else {
632 goto fail;
633 }
634 }
635
636 pos = os_strstr(cmd, " expiry=");
637 if (pos) {
638 long int val;
639
640 pos += 8;
641 val = strtol(pos, NULL, 0);
642 if (val <= 0)
643 goto fail;
644 if (conf_sta)
645 conf_sta->netaccesskey_expiry = val;
646 if (conf_ap)
647 conf_ap->netaccesskey_expiry = val;
648 }
649
650 pos = os_strstr(cmd, " configurator=");
651 if (pos) {
652 pos += 14;
653 conf = dpp_configurator_get_id(wpa_s, atoi(pos));
654 if (!conf) {
655 wpa_printf(MSG_INFO,
656 "DPP: Could not find the specified configurator");
657 goto fail;
658 }
30d27b04 659 }
b65b22d6
JM		 660 auth->conf_sta = conf_sta;
661 auth->conf_ap = conf_ap;
662 auth->conf = conf;
663 return;
664
665fail:
666 wpa_printf(MSG_DEBUG, "DPP: Failed to set configurator parameters");
667 dpp_configuration_free(conf_sta);
668 dpp_configuration_free(conf_ap);
669}
670
671
f97ace34
JM		 672static void wpas_dpp_init_timeout(void *eloop_ctx, void *timeout_ctx)
673{
674 struct wpa_supplicant *wpa_s = eloop_ctx;
675
676 if (!wpa_s->dpp_auth)
677 return;
678 wpa_printf(MSG_DEBUG, "DPP: Retry initiation after timeout");
679 wpas_dpp_auth_init_next(wpa_s);
680}
681
682
683static int wpas_dpp_auth_init_next(struct wpa_supplicant *wpa_s)
684{
685 struct dpp_authentication *auth = wpa_s->dpp_auth;
686 const u8 *dst;
0db637ca 687 unsigned int wait_time, max_wait_time, freq, max_tries, used;
921f5acd 688 struct os_reltime now, diff;
f97ace34 689
0db637ca 690 wpa_s->dpp_in_response_listen = 0;
f97ace34
JM		 691 if (!auth)
692 return -1;
0db637ca
JM		 693
694 if (auth->freq_idx == 0)
695 os_get_reltime(&wpa_s->dpp_init_iter_start);
696
f97ace34
JM		 697 if (auth->freq_idx >= auth->num_freq) {
698 auth->num_freq_iters++;
699 if (wpa_s->dpp_init_max_tries)
700 max_tries = wpa_s->dpp_init_max_tries;
701 else
702 max_tries = 5;
248264c6 703 if (auth->num_freq_iters >= max_tries || auth->auth_req_ack) {
f97ace34
JM		 704 wpa_printf(MSG_INFO,
705 "DPP: No response received from responder - stopping initiation attempt");
706 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_INIT_FAILED);
707 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout,
708 wpa_s, NULL);
709 offchannel_send_action_done(wpa_s);
710 dpp_auth_deinit(wpa_s->dpp_auth);
711 wpa_s->dpp_auth = NULL;
712 return -1;
713 }
714 auth->freq_idx = 0;
715 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
716 if (wpa_s->dpp_init_retry_time)
717 wait_time = wpa_s->dpp_init_retry_time;
718 else
719 wait_time = 10000;
921f5acd 720 os_get_reltime(&now);
0db637ca 721 os_reltime_sub(&now, &wpa_s->dpp_init_iter_start, &diff);
921f5acd
JM		 722 used = diff.sec * 1000 + diff.usec / 1000;
723 if (used > wait_time)
724 wait_time = 0;
725 else
726 wait_time -= used;
727 wpa_printf(MSG_DEBUG, "DPP: Next init attempt in %u ms",
728 wait_time);
f97ace34
JM		 729 eloop_register_timeout(wait_time / 1000,
730 (wait_time % 1000) * 1000,
731 wpas_dpp_init_timeout, wpa_s,
732 NULL);
733 return 0;
734 }
735 freq = auth->freq[auth->freq_idx++];
736 auth->curr_freq = freq;
737
738 if (is_zero_ether_addr(auth->peer_bi->mac_addr))
739 dst = broadcast;
740 else
741 dst = auth->peer_bi->mac_addr;
742 wpa_s->dpp_auth_ok_on_ack = 0;
743 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
744 wait_time = wpa_s->max_remain_on_chan;
0db637ca
JM		 745 max_wait_time = wpa_s->dpp_resp_wait_time ?
746 wpa_s->dpp_resp_wait_time : 2000;
747 if (wait_time > max_wait_time)
748 wait_time = max_wait_time;
749 wait_time += 10; /* give the driver some extra time to complete */
f97ace34
JM		 750 eloop_register_timeout(wait_time / 1000, (wait_time % 1000) * 1000,
751 wpas_dpp_reply_wait_timeout,
752 wpa_s, NULL);
0db637ca 753 wait_time -= 10;
f97ace34
JM		 754 if (auth->neg_freq > 0 && freq != auth->neg_freq) {
755 wpa_printf(MSG_DEBUG,
756 "DPP: Initiate on %u MHz and move to neg_freq %u MHz for response",
757 freq, auth->neg_freq);
758 }
759 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
760 MAC2STR(dst), freq, DPP_PA_AUTHENTICATION_REQ);
248264c6 761 auth->auth_req_ack = 0;
f97ace34
JM		 762 os_get_reltime(&wpa_s->dpp_last_init);
763 return offchannel_send_action(wpa_s, freq, dst,
764 wpa_s->own_addr, broadcast,
765 wpabuf_head(auth->req_msg),
766 wpabuf_len(auth->req_msg),
767 wait_time, wpas_dpp_tx_status, 0);
768}
769
770
b65b22d6
JM		 771int wpas_dpp_auth_init(struct wpa_supplicant *wpa_s, const char *cmd)
772{
773 const char *pos;
774 struct dpp_bootstrap_info *peer_bi, *own_bi = NULL;
d1f08264 775 u8 allowed_roles = DPP_CAPAB_CONFIGURATOR;
d2709206 776 unsigned int neg_freq = 0;
b65b22d6
JM		 777
778 wpa_s->dpp_gas_client = 0;
779
780 pos = os_strstr(cmd, " peer=");
781 if (!pos)
782 return -1;
783 pos += 6;
784 peer_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
785 if (!peer_bi) {
786 wpa_printf(MSG_INFO,
787 "DPP: Could not find bootstrapping info for the identified peer");
788 return -1;
789 }
790
791 pos = os_strstr(cmd, " own=");
792 if (pos) {
793 pos += 5;
794 own_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
795 if (!own_bi) {
796 wpa_printf(MSG_INFO,
797 "DPP: Could not find bootstrapping info for the identified local entry");
798 return -1;
799 }
800
801 if (peer_bi->curve != own_bi->curve) {
802 wpa_printf(MSG_INFO,
803 "DPP: Mismatching curves in bootstrapping info (peer=%s own=%s)",
804 peer_bi->curve->name, own_bi->curve->name);
805 return -1;
806 }
807 }
808
809 pos = os_strstr(cmd, " role=");
810 if (pos) {
811 pos += 6;
812 if (os_strncmp(pos, "configurator", 12) == 0)
d1f08264 813 allowed_roles = DPP_CAPAB_CONFIGURATOR;
b65b22d6 814 else if (os_strncmp(pos, "enrollee", 8) == 0)
d1f08264
JM		 815 allowed_roles = DPP_CAPAB_ENROLLEE;
816 else if (os_strncmp(pos, "either", 6) == 0)
817 allowed_roles = DPP_CAPAB_CONFIGURATOR |
818 DPP_CAPAB_ENROLLEE;
b65b22d6
JM		 819 else
820 goto fail;
821 }
822
823 pos = os_strstr(cmd, " netrole=");
824 if (pos) {
825 pos += 9;
826 wpa_s->dpp_netrole_ap = os_strncmp(pos, "ap", 2) == 0;
827 }
30d27b04 828
d2709206
JM		 829 pos = os_strstr(cmd, " neg_freq=");
830 if (pos)
831 neg_freq = atoi(pos + 10);
832
30d27b04 833 if (wpa_s->dpp_auth) {
f97ace34 834 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
30d27b04 835 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
95b0104a
JM		 836 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s,
837 NULL);
30d27b04
JM		 838 offchannel_send_action_done(wpa_s);
839 dpp_auth_deinit(wpa_s->dpp_auth);
840 }
d1f08264 841 wpa_s->dpp_auth = dpp_auth_init(wpa_s, peer_bi, own_bi, allowed_roles,
f97ace34
JM		 842 neg_freq,
843 wpa_s->hw.modes, wpa_s->hw.num_modes);
30d27b04 844 if (!wpa_s->dpp_auth)
461d39af
JM		 845 goto fail;
846 wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth);
b65b22d6 847 wpas_dpp_set_configurator(wpa_s, wpa_s->dpp_auth, cmd);
30d27b04 848
d2709206 849 wpa_s->dpp_auth->neg_freq = neg_freq;
30d27b04 850
f97ace34 851 if (!is_zero_ether_addr(peer_bi->mac_addr))
30d27b04
JM		 852 os_memcpy(wpa_s->dpp_auth->peer_mac_addr, peer_bi->mac_addr,
853 ETH_ALEN);
f97ace34
JM		 854
855 return wpas_dpp_auth_init_next(wpa_s);
461d39af 856fail:
461d39af 857 return -1;
30d27b04
JM		 858}
859
860
861struct wpas_dpp_listen_work {
862 unsigned int freq;
863 unsigned int duration;
864 struct wpabuf *probe_resp_ie;
865};
866
867
868static void wpas_dpp_listen_work_free(struct wpas_dpp_listen_work *lwork)
869{
870 if (!lwork)
871 return;
872 os_free(lwork);
873}
874
875
876static void wpas_dpp_listen_work_done(struct wpa_supplicant *wpa_s)
877{
878 struct wpas_dpp_listen_work *lwork;
879
880 if (!wpa_s->dpp_listen_work)
881 return;
882
883 lwork = wpa_s->dpp_listen_work->ctx;
884 wpas_dpp_listen_work_free(lwork);
885 radio_work_done(wpa_s->dpp_listen_work);
886 wpa_s->dpp_listen_work = NULL;
887}
888
889
890static void dpp_start_listen_cb(struct wpa_radio_work *work, int deinit)
891{
892 struct wpa_supplicant *wpa_s = work->wpa_s;
893 struct wpas_dpp_listen_work *lwork = work->ctx;
894
895 if (deinit) {
896 if (work->started) {
897 wpa_s->dpp_listen_work = NULL;
898 wpas_dpp_listen_stop(wpa_s);
899 }
900 wpas_dpp_listen_work_free(lwork);
901 return;
902 }
903
904 wpa_s->dpp_listen_work = work;
905
906 wpa_s->dpp_pending_listen_freq = lwork->freq;
907
908 if (wpa_drv_remain_on_channel(wpa_s, lwork->freq,
909 wpa_s->max_remain_on_chan) < 0) {
910 wpa_printf(MSG_DEBUG,
911 "DPP: Failed to request the driver to remain on channel (%u MHz) for listen",
912 lwork->freq);
913 wpas_dpp_listen_work_done(wpa_s);
914 wpa_s->dpp_pending_listen_freq = 0;
915 return;
916 }
917 wpa_s->off_channel_freq = 0;
918 wpa_s->roc_waiting_drv_freq = lwork->freq;
919}
920
921
922static int wpas_dpp_listen_start(struct wpa_supplicant *wpa_s,
923 unsigned int freq)
924{
925 struct wpas_dpp_listen_work *lwork;
926
927 if (wpa_s->dpp_listen_work) {
928 wpa_printf(MSG_DEBUG,
929 "DPP: Reject start_listen since dpp_listen_work already exists");
930 return -1;
931 }
932
933 if (wpa_s->dpp_listen_freq)
934 wpas_dpp_listen_stop(wpa_s);
935 wpa_s->dpp_listen_freq = freq;
936
937 lwork = os_zalloc(sizeof(*lwork));
938 if (!lwork)
939 return -1;
940 lwork->freq = freq;
941
942 if (radio_add_work(wpa_s, freq, "dpp-listen", 0, dpp_start_listen_cb,
943 lwork) < 0) {
944 wpas_dpp_listen_work_free(lwork);
945 return -1;
946 }
947
948 return 0;
949}
950
951
952int wpas_dpp_listen(struct wpa_supplicant *wpa_s, const char *cmd)
953{
954 int freq;
955
956 freq = atoi(cmd);
957 if (freq <= 0)
958 return -1;
959
960 if (os_strstr(cmd, " role=configurator"))
961 wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR;
962 else if (os_strstr(cmd, " role=enrollee"))
963 wpa_s->dpp_allowed_roles = DPP_CAPAB_ENROLLEE;
964 else
965 wpa_s->dpp_allowed_roles = DPP_CAPAB_CONFIGURATOR |
966 DPP_CAPAB_ENROLLEE;
967 wpa_s->dpp_qr_mutual = os_strstr(cmd, " qr=mutual") != NULL;
461d39af 968 wpa_s->dpp_netrole_ap = os_strstr(cmd, " netrole=ap") != NULL;
30d27b04
JM		 969 if (wpa_s->dpp_listen_freq == (unsigned int) freq) {
970 wpa_printf(MSG_DEBUG, "DPP: Already listening on %u MHz",
971 freq);
972 return 0;
973 }
974
975 return wpas_dpp_listen_start(wpa_s, freq);
976}
977
978
979void wpas_dpp_listen_stop(struct wpa_supplicant *wpa_s)
980{
0db637ca 981 wpa_s->dpp_in_response_listen = 0;
30d27b04
JM		 982 if (!wpa_s->dpp_listen_freq)
983 return;
984
985 wpa_printf(MSG_DEBUG, "DPP: Stop listen on %u MHz",
986 wpa_s->dpp_listen_freq);
987 wpa_drv_cancel_remain_on_channel(wpa_s);
988 wpa_s->dpp_listen_freq = 0;
989 wpas_dpp_listen_work_done(wpa_s);
990}
991
992
993void wpas_dpp_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
994 unsigned int freq)
995{
996 if (!wpa_s->dpp_listen_freq && !wpa_s->dpp_pending_listen_freq)
997 return;
998
999 wpa_printf(MSG_DEBUG,
1000 "DPP: remain-on-channel callback (off_channel_freq=%u dpp_pending_listen_freq=%d roc_waiting_drv_freq=%d freq=%u)",
1001 wpa_s->off_channel_freq, wpa_s->dpp_pending_listen_freq,
1002 wpa_s->roc_waiting_drv_freq, freq);
1003 if (wpa_s->off_channel_freq &&
1004 wpa_s->off_channel_freq == wpa_s->dpp_pending_listen_freq) {
1005 wpa_printf(MSG_DEBUG, "DPP: Listen on %u MHz started", freq);
1006 wpa_s->dpp_pending_listen_freq = 0;
1007 } else {
1008 wpa_printf(MSG_DEBUG,
1009 "DPP: Ignore remain-on-channel callback (off_channel_freq=%u dpp_pending_listen_freq=%d freq=%u)",
1010 wpa_s->off_channel_freq,
1011 wpa_s->dpp_pending_listen_freq, freq);
1012 }
1013}
1014
1015
1016void wpas_dpp_cancel_remain_on_channel_cb(struct wpa_supplicant *wpa_s,
1017 unsigned int freq)
1018{
1019 wpas_dpp_listen_work_done(wpa_s);
1020
0db637ca
JM		 1021 if (wpa_s->dpp_auth && wpa_s->dpp_in_response_listen) {
1022 unsigned int new_freq;
1023
30d27b04 1024 /* Continue listen with a new remain-on-channel */
0db637ca
JM		 1025 if (wpa_s->dpp_auth->neg_freq > 0)
1026 new_freq = wpa_s->dpp_auth->neg_freq;
1027 else
1028 new_freq = wpa_s->dpp_auth->curr_freq;
30d27b04
JM		 1029 wpa_printf(MSG_DEBUG,
1030 "DPP: Continue wait on %u MHz for the ongoing DPP provisioning session",
0db637ca
JM		 1031 new_freq);
1032 wpas_dpp_listen_start(wpa_s, new_freq);
30d27b04
JM		 1033 return;
1034 }
1035
1036 if (wpa_s->dpp_listen_freq) {
1037 /* Continue listen with a new remain-on-channel */
1038 wpas_dpp_listen_start(wpa_s, wpa_s->dpp_listen_freq);
1039 }
1040}
1041
1042
1043static void wpas_dpp_rx_auth_req(struct wpa_supplicant *wpa_s, const u8 *src,
dc4d271c
JM		 1044 const u8 *hdr, const u8 *buf, size_t len,
1045 unsigned int freq)
30d27b04 1046{
27fefbbb
JM		 1047 const u8 *r_bootstrap, *i_bootstrap;
1048 u16 r_bootstrap_len, i_bootstrap_len;
30d27b04 1049 struct dpp_bootstrap_info *bi, *own_bi = NULL, *peer_bi = NULL;
30d27b04
JM		 1050
1051 wpa_printf(MSG_DEBUG, "DPP: Authentication Request from " MACSTR,
1052 MAC2STR(src));
1053
30d27b04
JM		 1054 r_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_R_BOOTSTRAP_KEY_HASH,
1055 &r_bootstrap_len);
27fefbbb 1056 if (!r_bootstrap || r_bootstrap_len != SHA256_MAC_LEN) {
26806abe
JM		 1057 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1058 "Missing or invalid required Responder Bootstrapping Key Hash attribute");
30d27b04
JM		 1059 return;
1060 }
1061 wpa_hexdump(MSG_MSGDUMP, "DPP: Responder Bootstrapping Key Hash",
1062 r_bootstrap, r_bootstrap_len);
1063
1064 i_bootstrap = dpp_get_attr(buf, len, DPP_ATTR_I_BOOTSTRAP_KEY_HASH,
1065 &i_bootstrap_len);
27fefbbb 1066 if (!i_bootstrap || i_bootstrap_len != SHA256_MAC_LEN) {
26806abe
JM		 1067 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1068 "Missing or invalid required Initiator Bootstrapping Key Hash attribute");
30d27b04
JM		 1069 return;
1070 }
1071 wpa_hexdump(MSG_MSGDUMP, "DPP: Initiator Bootstrapping Key Hash",
1072 i_bootstrap, i_bootstrap_len);
1073
1074 /* Try to find own and peer bootstrapping key matches based on the
1075 * received hash values */
1076 dl_list_for_each(bi, &wpa_s->dpp_bootstrap, struct dpp_bootstrap_info,
1077 list) {
1078 if (!own_bi && bi->own &&
1079 os_memcmp(bi->pubkey_hash, r_bootstrap,
1080 SHA256_MAC_LEN) == 0) {
1081 wpa_printf(MSG_DEBUG,
1082 "DPP: Found matching own bootstrapping information");
1083 own_bi = bi;
1084 }
1085
1086 if (!peer_bi && !bi->own &&
1087 os_memcmp(bi->pubkey_hash, i_bootstrap,
1088 SHA256_MAC_LEN) == 0) {
1089 wpa_printf(MSG_DEBUG,
1090 "DPP: Found matching peer bootstrapping information");
1091 peer_bi = bi;
1092 }
1093
1094 if (own_bi && peer_bi)
1095 break;
1096 }
1097
1098 if (!own_bi) {
26806abe
JM		 1099 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1100 "No matching own bootstrapping key found - ignore message");
30d27b04
JM		 1101 return;
1102 }
1103
1104 if (wpa_s->dpp_auth) {
26806abe
JM		 1105 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1106 "Already in DPP authentication exchange - ignore new one");
30d27b04
JM		 1107 return;
1108 }
1109
461d39af
JM		 1110 wpa_s->dpp_gas_client = 0;
1111 wpa_s->dpp_auth_ok_on_ack = 0;
30d27b04
JM		 1112 wpa_s->dpp_auth = dpp_auth_req_rx(wpa_s, wpa_s->dpp_allowed_roles,
1113 wpa_s->dpp_qr_mutual,
27fefbbb 1114 peer_bi, own_bi, freq, hdr, buf, len);
30d27b04
JM		 1115 if (!wpa_s->dpp_auth) {
1116 wpa_printf(MSG_DEBUG, "DPP: No response generated");
1117 return;
1118 }
461d39af 1119 wpas_dpp_set_testing_options(wpa_s, wpa_s->dpp_auth);
b65b22d6
JM		 1120 wpas_dpp_set_configurator(wpa_s, wpa_s->dpp_auth,
1121 wpa_s->dpp_configurator_params);
30d27b04
JM		 1122 os_memcpy(wpa_s->dpp_auth->peer_mac_addr, src, ETH_ALEN);
1123
d2709206
JM		 1124 if (wpa_s->dpp_listen_freq &&
1125 wpa_s->dpp_listen_freq != wpa_s->dpp_auth->curr_freq) {
1126 wpa_printf(MSG_DEBUG,
1127 "DPP: Stop listen on %u MHz to allow response on the request %u MHz",
1128 wpa_s->dpp_listen_freq, wpa_s->dpp_auth->curr_freq);
1129 wpas_dpp_listen_stop(wpa_s);
1130 }
1131
af48810b
JM		 1132 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1133 MAC2STR(src), wpa_s->dpp_auth->curr_freq,
1134 DPP_PA_AUTHENTICATION_RESP);
30d27b04
JM		 1135 offchannel_send_action(wpa_s, wpa_s->dpp_auth->curr_freq,
1136 src, wpa_s->own_addr, broadcast,
dc4d271c
JM		 1137 wpabuf_head(wpa_s->dpp_auth->resp_msg),
1138 wpabuf_len(wpa_s->dpp_auth->resp_msg),
30d27b04 1139 500, wpas_dpp_tx_status, 0);
30d27b04
JM		 1140}
1141
1142
461d39af
JM		 1143static void wpas_dpp_start_gas_server(struct wpa_supplicant *wpa_s)
1144{
1145 /* TODO: stop wait and start ROC */
1146}
1147
1148
8528994e
JM		 1149static struct wpa_ssid * wpas_dpp_add_network(struct wpa_supplicant *wpa_s,
1150 struct dpp_authentication *auth)
1151{
1152 struct wpa_ssid *ssid;
1153
1154 ssid = wpa_config_add_network(wpa_s->conf);
1155 if (!ssid)
1156 return NULL;
1157 wpas_notify_network_added(wpa_s, ssid);
1158 wpa_config_set_network_defaults(ssid);
1159 ssid->disabled = 1;
1160
1161 ssid->ssid = os_malloc(auth->ssid_len);
1162 if (!ssid->ssid)
1163 goto fail;
1164 os_memcpy(ssid->ssid, auth->ssid, auth->ssid_len);
1165 ssid->ssid_len = auth->ssid_len;
1166
1167 if (auth->connector) {
1168 ssid->key_mgmt = WPA_KEY_MGMT_DPP;
70e19013 1169 ssid->ieee80211w = MGMT_FRAME_PROTECTION_REQUIRED;
8528994e
JM		 1170 ssid->dpp_connector = os_strdup(auth->connector);
1171 if (!ssid->dpp_connector)
1172 goto fail;
1173 }
1174
1175 if (auth->c_sign_key) {
1176 ssid->dpp_csign = os_malloc(wpabuf_len(auth->c_sign_key));
1177 if (!ssid->dpp_csign)
1178 goto fail;
1179 os_memcpy(ssid->dpp_csign, wpabuf_head(auth->c_sign_key),
1180 wpabuf_len(auth->c_sign_key));
1181 ssid->dpp_csign_len = wpabuf_len(auth->c_sign_key);
8528994e
JM		 1182 }
1183
1184 if (auth->net_access_key) {
1185 ssid->dpp_netaccesskey =
1186 os_malloc(wpabuf_len(auth->net_access_key));
1187 if (!ssid->dpp_netaccesskey)
1188 goto fail;
1189 os_memcpy(ssid->dpp_netaccesskey,
1190 wpabuf_head(auth->net_access_key),
1191 wpabuf_len(auth->net_access_key));
1192 ssid->dpp_netaccesskey_len = wpabuf_len(auth->net_access_key);
1193 ssid->dpp_netaccesskey_expiry = auth->net_access_key_expiry;
1194 }
1195
1196 if (!auth->connector) {
5dd745b7
JM		 1197 ssid->key_mgmt = 0;
1198 if (auth->akm == DPP_AKM_PSK || auth->akm == DPP_AKM_PSK_SAE)
1199 ssid->key_mgmt |= WPA_KEY_MGMT_PSK |
1200 WPA_KEY_MGMT_PSK_SHA256 | WPA_KEY_MGMT_FT_PSK;
1201 if (auth->akm == DPP_AKM_SAE || auth->akm == DPP_AKM_PSK_SAE)
1202 ssid->key_mgmt |= WPA_KEY_MGMT_SAE |
1203 WPA_KEY_MGMT_FT_SAE;
70e19013 1204 ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL;
8528994e
JM		 1205 if (auth->passphrase[0]) {
1206 if (wpa_config_set_quoted(ssid, "psk",
1207 auth->passphrase) < 0)
1208 goto fail;
1209 wpa_config_update_psk(ssid);
1210 ssid->export_keys = 1;
1211 } else {
1212 ssid->psk_set = auth->psk_set;
1213 os_memcpy(ssid->psk, auth->psk, PMK_LEN);
1214 }
1215 }
1216
1217 return ssid;
1218fail:
1219 wpas_notify_network_removed(wpa_s, ssid);
1220 wpa_config_remove_network(wpa_s->conf, ssid->id);
1221 return NULL;
1222}
1223
1224
1225static void wpas_dpp_process_config(struct wpa_supplicant *wpa_s,
1226 struct dpp_authentication *auth)
1227{
1228 struct wpa_ssid *ssid;
1229
1230 if (wpa_s->conf->dpp_config_processing < 1)
1231 return;
1232
1233 ssid = wpas_dpp_add_network(wpa_s, auth);
1234 if (!ssid)
1235 return;
1236
1237 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_NETWORK_ID "%d", ssid->id);
1238 if (wpa_s->conf->dpp_config_processing < 2)
1239 return;
1240
1241 wpa_printf(MSG_DEBUG, "DPP: Trying to connect to the new network");
1242 ssid->disabled = 0;
1243 wpa_s->disconnected = 0;
1244 wpa_s->reassociate = 1;
1245 wpa_s->scan_runs = 0;
1246 wpa_s->normal_scans = 0;
1247 wpa_supplicant_cancel_sched_scan(wpa_s);
1248 wpa_supplicant_req_scan(wpa_s, 0, 0);
1249}
1250
1251
f522bb23
JM		 1252static void wpas_dpp_handle_config_obj(struct wpa_supplicant *wpa_s,
1253 struct dpp_authentication *auth)
461d39af 1254{
461d39af
JM		 1255 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_RECEIVED);
1256 if (auth->ssid_len)
1257 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONFOBJ_SSID "%s",
1258 wpa_ssid_txt(auth->ssid, auth->ssid_len));
1259 if (auth->connector) {
1260 /* TODO: Save the Connector and consider using a command
1261 * to fetch the value instead of sending an event with
1262 * it. The Connector could end up being larger than what
1263 * most clients are ready to receive as an event
1264 * message. */
1265 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONNECTOR "%s",
1266 auth->connector);
1267 }
1268 if (auth->c_sign_key) {
1269 char *hex;
1270 size_t hexlen;
1271
1272 hexlen = 2 * wpabuf_len(auth->c_sign_key) + 1;
1273 hex = os_malloc(hexlen);
1274 if (hex) {
1275 wpa_snprintf_hex(hex, hexlen,
1276 wpabuf_head(auth->c_sign_key),
1277 wpabuf_len(auth->c_sign_key));
c77e2ff0
JM		 1278 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_C_SIGN_KEY "%s",
1279 hex);
461d39af
JM		 1280 os_free(hex);
1281 }
1282 }
1283 if (auth->net_access_key) {
1284 char *hex;
1285 size_t hexlen;
1286
1287 hexlen = 2 * wpabuf_len(auth->net_access_key) + 1;
1288 hex = os_malloc(hexlen);
1289 if (hex) {
1290 wpa_snprintf_hex(hex, hexlen,
1291 wpabuf_head(auth->net_access_key),
1292 wpabuf_len(auth->net_access_key));
1293 if (auth->net_access_key_expiry)
1294 wpa_msg(wpa_s, MSG_INFO,
1295 DPP_EVENT_NET_ACCESS_KEY "%s %lu", hex,
1296 (long unsigned)
1297 auth->net_access_key_expiry);
1298 else
1299 wpa_msg(wpa_s, MSG_INFO,
1300 DPP_EVENT_NET_ACCESS_KEY "%s", hex);
1301 os_free(hex);
1302 }
1303 }
8528994e
JM		 1304
1305 wpas_dpp_process_config(wpa_s, auth);
f522bb23
JM		 1306}
1307
1308
1309static void wpas_dpp_gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token,
1310 enum gas_query_result result,
1311 const struct wpabuf *adv_proto,
1312 const struct wpabuf *resp, u16 status_code)
1313{
1314 struct wpa_supplicant *wpa_s = ctx;
1315 const u8 *pos;
1316 struct dpp_authentication *auth = wpa_s->dpp_auth;
1317
1866dfb5
JM		 1318 wpa_s->dpp_gas_dialog_token = -1;
1319
f522bb23
JM		 1320 if (!auth || !auth->auth_success) {
1321 wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress");
1322 return;
1323 }
1324 if (!resp || status_code != WLAN_STATUS_SUCCESS) {
1325 wpa_printf(MSG_DEBUG, "DPP: GAS query did not succeed");
1326 goto fail;
1327 }
1328
1329 wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response adv_proto",
1330 adv_proto);
1331 wpa_hexdump_buf(MSG_DEBUG, "DPP: Configuration Response (GAS response)",
1332 resp);
1333
1334 if (wpabuf_len(adv_proto) != 10 ||
1335 !(pos = wpabuf_head(adv_proto)) ||
1336 pos[0] != WLAN_EID_ADV_PROTO ||
1337 pos[1] != 8 ||
1338 pos[3] != WLAN_EID_VENDOR_SPECIFIC ||
1339 pos[4] != 5 ||
1340 WPA_GET_BE24(&pos[5]) != OUI_WFA ||
1341 pos[8] != 0x1a ||
1342 pos[9] != 1) {
1343 wpa_printf(MSG_DEBUG,
1344 "DPP: Not a DPP Advertisement Protocol ID");
1345 goto fail;
1346 }
8528994e 1347
f522bb23
JM		 1348 if (dpp_conf_resp_rx(auth, resp) < 0) {
1349 wpa_printf(MSG_DEBUG, "DPP: Configuration attempt failed");
1350 goto fail;
1351 }
1352
1353 wpas_dpp_handle_config_obj(wpa_s, auth);
461d39af
JM		 1354 dpp_auth_deinit(wpa_s->dpp_auth);
1355 wpa_s->dpp_auth = NULL;
1356 return;
1357
1358fail:
1359 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
1360 dpp_auth_deinit(wpa_s->dpp_auth);
1361 wpa_s->dpp_auth = NULL;
1362}
1363
1364
1365static void wpas_dpp_start_gas_client(struct wpa_supplicant *wpa_s)
1366{
1367 struct dpp_authentication *auth = wpa_s->dpp_auth;
1368 struct wpabuf *buf, *conf_req;
1369 char json[100];
1370 int res;
1371
1372 wpa_s->dpp_gas_client = 1;
1373 os_snprintf(json, sizeof(json),
1374 "{\"name\":\"Test\","
1375 "\"wi-fi_tech\":\"infra\","
1376 "\"netRole\":\"%s\"}",
1377 wpa_s->dpp_netrole_ap ? "ap" : "sta");
f9cf7d03
JM		 1378#ifdef CONFIG_TESTING_OPTIONS
1379 if (dpp_test == DPP_TEST_INVALID_CONFIG_ATTR_OBJ_CONF_REQ) {
1380 wpa_printf(MSG_INFO, "DPP: TESTING - invalid Config Attr");
1381 json[29] = 'k'; /* replace "infra" with "knfra" */
1382 }
1383#endif /* CONFIG_TESTING_OPTIONS */
461d39af
JM		 1384 wpa_printf(MSG_DEBUG, "DPP: GAS Config Attributes: %s", json);
1385
1386 offchannel_send_action_done(wpa_s);
1387 wpas_dpp_listen_stop(wpa_s);
1388
1389 conf_req = dpp_build_conf_req(auth, json);
1390 if (!conf_req) {
1391 wpa_printf(MSG_DEBUG,
1392 "DPP: No configuration request data available");
1393 return;
1394 }
1395
1396 buf = gas_build_initial_req(0, 10 + 2 + wpabuf_len(conf_req));
1397 if (!buf) {
1398 wpabuf_free(conf_req);
1399 return;
1400 }
1401
1402 /* Advertisement Protocol IE */
1403 wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO);
1404 wpabuf_put_u8(buf, 8); /* Length */
1405 wpabuf_put_u8(buf, 0x7f);
1406 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
1407 wpabuf_put_u8(buf, 5);
1408 wpabuf_put_be24(buf, OUI_WFA);
1409 wpabuf_put_u8(buf, DPP_OUI_TYPE);
1410 wpabuf_put_u8(buf, 0x01);
1411
1412 /* GAS Query */
1413 wpabuf_put_le16(buf, wpabuf_len(conf_req));
1414 wpabuf_put_buf(buf, conf_req);
1415 wpabuf_free(conf_req);
1416
1417 wpa_printf(MSG_DEBUG, "DPP: GAS request to " MACSTR " (freq %u MHz)",
1418 MAC2STR(auth->peer_mac_addr), auth->curr_freq);
1419
1420 res = gas_query_req(wpa_s->gas, auth->peer_mac_addr, auth->curr_freq,
aca4d84e 1421 1, buf, wpas_dpp_gas_resp_cb, wpa_s);
461d39af
JM		 1422 if (res < 0) {
1423 wpa_msg(wpa_s, MSG_DEBUG, "GAS: Failed to send Query Request");
1424 wpabuf_free(buf);
1425 } else {
1426 wpa_printf(MSG_DEBUG,
1427 "DPP: GAS query started with dialog token %u", res);
1866dfb5 1428 wpa_s->dpp_gas_dialog_token = res;
461d39af
JM		 1429 }
1430}
1431
1432
1433static void wpas_dpp_auth_success(struct wpa_supplicant *wpa_s, int initiator)
1434{
1435 wpa_printf(MSG_DEBUG, "DPP: Authentication succeeded");
1436 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_AUTH_SUCCESS "init=%d", initiator);
1437
1438 if (wpa_s->dpp_auth->configurator)
1439 wpas_dpp_start_gas_server(wpa_s);
1440 else
1441 wpas_dpp_start_gas_client(wpa_s);
1442}
1443
1444
30d27b04 1445static void wpas_dpp_rx_auth_resp(struct wpa_supplicant *wpa_s, const u8 *src,
d2709206
JM		 1446 const u8 *hdr, const u8 *buf, size_t len,
1447 unsigned int freq)
30d27b04
JM		 1448{
1449 struct dpp_authentication *auth = wpa_s->dpp_auth;
dc4d271c 1450 struct wpabuf *msg;
30d27b04 1451
d2709206
JM		 1452 wpa_printf(MSG_DEBUG, "DPP: Authentication Response from " MACSTR
1453 " (freq %u MHz)", MAC2STR(src), freq);
30d27b04
JM		 1454
1455 if (!auth) {
1456 wpa_printf(MSG_DEBUG,
1457 "DPP: No DPP Authentication in progress - drop");
1458 return;
1459 }
1460
1461 if (!is_zero_ether_addr(auth->peer_mac_addr) &&
1462 os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) {
1463 wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected "
1464 MACSTR ") - drop", MAC2STR(auth->peer_mac_addr));
1465 return;
1466 }
1467
1468 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
1469
d2709206
JM		 1470 if (auth->curr_freq != freq && auth->neg_freq == freq) {
1471 wpa_printf(MSG_DEBUG,
1472 "DPP: Responder accepted request for different negotiation channel");
1473 auth->curr_freq = freq;
1474 }
1475
f97ace34 1476 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
dc4d271c
JM		 1477 msg = dpp_auth_resp_rx(auth, hdr, buf, len);
1478 if (!msg) {
30d27b04
JM		 1479 if (auth->auth_resp_status == DPP_STATUS_RESPONSE_PENDING) {
1480 wpa_printf(MSG_DEBUG,
1481 "DPP: Start wait for full response");
1482 offchannel_send_action_done(wpa_s);
1483 wpas_dpp_listen_start(wpa_s, auth->curr_freq);
1484 return;
1485 }
1486 wpa_printf(MSG_DEBUG, "DPP: No confirm generated");
1487 return;
1488 }
1489 os_memcpy(auth->peer_mac_addr, src, ETH_ALEN);
1490
af48810b
JM		 1491 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1492 MAC2STR(src), auth->curr_freq, DPP_PA_AUTHENTICATION_CONF);
30d27b04
JM		 1493 offchannel_send_action(wpa_s, auth->curr_freq,
1494 src, wpa_s->own_addr, broadcast,
1495 wpabuf_head(msg), wpabuf_len(msg),
1496 500, wpas_dpp_tx_status, 0);
1497 wpabuf_free(msg);
461d39af 1498 wpa_s->dpp_auth_ok_on_ack = 1;
30d27b04
JM		 1499}
1500
1501
1502static void wpas_dpp_rx_auth_conf(struct wpa_supplicant *wpa_s, const u8 *src,
dc4d271c 1503 const u8 *hdr, const u8 *buf, size_t len)
30d27b04
JM		 1504{
1505 struct dpp_authentication *auth = wpa_s->dpp_auth;
1506
1507 wpa_printf(MSG_DEBUG, "DPP: Authentication Confirmation from " MACSTR,
1508 MAC2STR(src));
1509
1510 if (!auth) {
1511 wpa_printf(MSG_DEBUG,
1512 "DPP: No DPP Authentication in progress - drop");
1513 return;
1514 }
1515
1516 if (os_memcmp(src, auth->peer_mac_addr, ETH_ALEN) != 0) {
1517 wpa_printf(MSG_DEBUG, "DPP: MAC address mismatch (expected "
1518 MACSTR ") - drop", MAC2STR(auth->peer_mac_addr));
1519 return;
1520 }
1521
dc4d271c 1522 if (dpp_auth_conf_rx(auth, hdr, buf, len) < 0) {
30d27b04
JM		 1523 wpa_printf(MSG_DEBUG, "DPP: Authentication failed");
1524 return;
1525 }
1526
461d39af 1527 wpas_dpp_auth_success(wpa_s, 0);
30d27b04
JM		 1528}
1529
1530
a0d5c56f
JM		 1531static void wpas_dpp_rx_peer_disc_resp(struct wpa_supplicant *wpa_s,
1532 const u8 *src,
1533 const u8 *buf, size_t len)
1534{
1535 struct wpa_ssid *ssid;
e85b6601
JM		 1536 const u8 *connector, *trans_id, *status;
1537 u16 connector_len, trans_id_len, status_len;
a0d5c56f
JM		 1538 struct dpp_introduction intro;
1539 struct rsn_pmksa_cache_entry *entry;
787615b3
JM		 1540 struct os_time now;
1541 struct os_reltime rnow;
1542 os_time_t expiry;
1543 unsigned int seconds;
e85b6601 1544 enum dpp_status_error res;
a0d5c56f
JM		 1545
1546 wpa_printf(MSG_DEBUG, "DPP: Peer Discovery Response from " MACSTR,
1547 MAC2STR(src));
1548 if (is_zero_ether_addr(wpa_s->dpp_intro_bssid) ||
1549 os_memcmp(src, wpa_s->dpp_intro_bssid, ETH_ALEN) != 0) {
1550 wpa_printf(MSG_DEBUG, "DPP: Not waiting for response from "
1551 MACSTR " - drop", MAC2STR(src));
1552 return;
1553 }
1554 offchannel_send_action_done(wpa_s);
1555
1556 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1557 if (ssid == wpa_s->dpp_intro_network)
1558 break;
1559 }
1560 if (!ssid || !ssid->dpp_connector || !ssid->dpp_netaccesskey ||
1561 !ssid->dpp_csign) {
1562 wpa_printf(MSG_DEBUG,
1563 "DPP: Profile not found for network introduction");
1564 return;
1565 }
1566
85fd8263
JM		 1567 trans_id = dpp_get_attr(buf, len, DPP_ATTR_TRANSACTION_ID,
1568 &trans_id_len);
1569 if (!trans_id || trans_id_len != 1) {
1570 wpa_printf(MSG_DEBUG,
1571 "DPP: Peer did not include Transaction ID");
e85b6601
JM		 1572 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1573 " fail=missing_transaction_id", MAC2STR(src));
85fd8263
JM		 1574 goto fail;
1575 }
1576 if (trans_id[0] != TRANSACTION_ID) {
1577 wpa_printf(MSG_DEBUG,
1578 "DPP: Ignore frame with unexpected Transaction ID %u",
1579 trans_id[0]);
e85b6601
JM		 1580 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1581 " fail=transaction_id_mismatch", MAC2STR(src));
1582 goto fail;
1583 }
1584
1585 status = dpp_get_attr(buf, len, DPP_ATTR_STATUS, &status_len);
1586 if (!status || status_len != 1) {
1587 wpa_printf(MSG_DEBUG, "DPP: Peer did not include Status");
1588 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1589 " fail=missing_status", MAC2STR(src));
1590 goto fail;
1591 }
1592 if (status[0] != DPP_STATUS_OK) {
1593 wpa_printf(MSG_DEBUG,
1594 "DPP: Peer rejected network introduction: Status %u",
1595 status[0]);
1596 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1597 " status=%u", MAC2STR(src), status[0]);
85fd8263
JM		 1598 goto fail;
1599 }
1600
a0d5c56f
JM		 1601 connector = dpp_get_attr(buf, len, DPP_ATTR_CONNECTOR, &connector_len);
1602 if (!connector) {
1603 wpa_printf(MSG_DEBUG,
1604 "DPP: Peer did not include its Connector");
e85b6601
JM		 1605 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1606 " fail=missing_connector", MAC2STR(src));
1607 goto fail;
a0d5c56f
JM		 1608 }
1609
e85b6601
JM		 1610 res = dpp_peer_intro(&intro, ssid->dpp_connector,
1611 ssid->dpp_netaccesskey,
1612 ssid->dpp_netaccesskey_len,
1613 ssid->dpp_csign,
1614 ssid->dpp_csign_len,
1615 connector, connector_len, &expiry);
1616 if (res != DPP_STATUS_OK) {
a0d5c56f
JM		 1617 wpa_printf(MSG_INFO,
1618 "DPP: Network Introduction protocol resulted in failure");
e85b6601
JM		 1619 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1620 " fail=peer_connector_validation_failed", MAC2STR(src));
a0d5c56f
JM		 1621 goto fail;
1622 }
1623
a0d5c56f
JM		 1624 entry = os_zalloc(sizeof(*entry));
1625 if (!entry)
1626 goto fail;
1627 os_memcpy(entry->aa, src, ETH_ALEN);
1628 os_memcpy(entry->pmkid, intro.pmkid, PMKID_LEN);
1629 os_memcpy(entry->pmk, intro.pmk, intro.pmk_len);
1630 entry->pmk_len = intro.pmk_len;
1631 entry->akmp = WPA_KEY_MGMT_DPP;
787615b3
JM		 1632 if (expiry) {
1633 os_get_time(&now);
1634 seconds = expiry - now.sec;
1635 } else {
1636 seconds = 86400 * 7;
1637 }
1638 os_get_reltime(&rnow);
1639 entry->expiration = rnow.sec + seconds;
1640 entry->reauth_time = rnow.sec + seconds;
a0d5c56f
JM		 1641 entry->network_ctx = ssid;
1642 wpa_sm_pmksa_cache_add_entry(wpa_s->wpa, entry);
1643
e85b6601
JM		 1644 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_INTRO "peer=" MACSTR
1645 " status=%u", MAC2STR(src), status[0]);
1646
a0d5c56f
JM		 1647 wpa_printf(MSG_DEBUG,
1648 "DPP: Try connection again after successful network introduction");
1649 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
1650 wpa_supplicant_cancel_sched_scan(wpa_s);
1651 wpa_supplicant_req_scan(wpa_s, 0, 0);
1652 }
1653fail:
1654 os_memset(&intro, 0, sizeof(intro));
1655}
1656
1657
3b50f8a4
JM		 1658static int wpas_dpp_allow_ir(struct wpa_supplicant *wpa_s, unsigned int freq)
1659{
1660 int i, j;
1661
1662 if (!wpa_s->hw.modes)
1663 return -1;
1664
1665 for (i = 0; i < wpa_s->hw.num_modes; i++) {
1666 struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
1667
1668 for (j = 0; j < mode->num_channels; j++) {
1669 struct hostapd_channel_data *chan = &mode->channels[j];
1670
1671 if (chan->freq != (int) freq)
1672 continue;
1673
1674 if (chan->flag & (HOSTAPD_CHAN_DISABLED |
1675 HOSTAPD_CHAN_NO_IR |
1676 HOSTAPD_CHAN_RADAR))
1677 continue;
1678
1679 return 1;
1680 }
1681 }
1682
1683 wpa_printf(MSG_DEBUG,
1684 "DPP: Frequency %u MHz not supported or does not allow PKEX initiation in the current channel list",
1685 freq);
1686
1687 return 0;
1688}
1689
1690
1691static int wpas_dpp_pkex_next_channel(struct wpa_supplicant *wpa_s,
1692 struct dpp_pkex *pkex)
1693{
1694 if (pkex->freq == 2437)
1695 pkex->freq = 5745;
1696 else if (pkex->freq == 5745)
1697 pkex->freq = 5220;
1698 else if (pkex->freq == 5220)
1699 pkex->freq = 60480;
1700 else
1701 return -1; /* no more channels to try */
1702
1703 if (wpas_dpp_allow_ir(wpa_s, pkex->freq) == 1) {
1704 wpa_printf(MSG_DEBUG, "DPP: Try to initiate on %u MHz",
1705 pkex->freq);
1706 return 0;
1707 }
1708
1709 /* Could not use this channel - try the next one */
1710 return wpas_dpp_pkex_next_channel(wpa_s, pkex);
1711}
1712
1713
00d2d13d
JM		 1714static void wpas_dpp_pkex_retry_timeout(void *eloop_ctx, void *timeout_ctx)
1715{
1716 struct wpa_supplicant *wpa_s = eloop_ctx;
1717 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
1718
1719 if (!pkex || !pkex->exchange_req)
1720 return;
1721 if (pkex->exch_req_tries >= 5) {
3b50f8a4
JM		 1722 if (wpas_dpp_pkex_next_channel(wpa_s, pkex) < 0) {
1723 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_FAIL
1724 "No response from PKEX peer");
1725 dpp_pkex_free(pkex);
1726 wpa_s->dpp_pkex = NULL;
1727 return;
1728 }
1729 pkex->exch_req_tries = 0;
00d2d13d
JM		 1730 }
1731
1732 pkex->exch_req_tries++;
1733 wpa_printf(MSG_DEBUG, "DPP: Retransmit PKEX Exchange Request (try %u)",
1734 pkex->exch_req_tries);
1735 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1736 MAC2STR(broadcast), pkex->freq, DPP_PA_PKEX_EXCHANGE_REQ);
1737 offchannel_send_action(wpa_s, pkex->freq, broadcast,
1738 wpa_s->own_addr, broadcast,
1739 wpabuf_head(pkex->exchange_req),
1740 wpabuf_len(pkex->exchange_req),
1741 pkex->exch_req_wait_time,
1742 wpas_dpp_tx_pkex_status, 0);
1743}
1744
1745
500ed7f0
JM		 1746static void
1747wpas_dpp_tx_pkex_status(struct wpa_supplicant *wpa_s,
1748 unsigned int freq, const u8 *dst,
1749 const u8 *src, const u8 *bssid,
1750 const u8 *data, size_t data_len,
1751 enum offchannel_send_action_result result)
1752{
af48810b 1753 const char *res_txt;
00d2d13d 1754 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
af48810b
JM		 1755
1756 res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
1757 (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
1758 "FAILED");
500ed7f0
JM		 1759 wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
1760 " result=%s (PKEX)",
af48810b
JM		 1761 freq, MAC2STR(dst), res_txt);
1762 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
1763 " freq=%u result=%s", MAC2STR(dst), freq, res_txt);
e0247e79 1764
00d2d13d 1765 if (!pkex) {
e0247e79
JM		 1766 wpa_printf(MSG_DEBUG,
1767 "DPP: Ignore TX status since there is no ongoing PKEX exchange");
1768 return;
1769 }
1770
00d2d13d 1771 if (pkex->failed) {
e0247e79
JM		 1772 wpa_printf(MSG_DEBUG,
1773 "DPP: Terminate PKEX exchange due to an earlier error");
00d2d13d
JM		 1774 if (pkex->t > pkex->own_bi->pkex_t)
1775 pkex->own_bi->pkex_t = pkex->t;
1776 dpp_pkex_free(pkex);
e0247e79 1777 wpa_s->dpp_pkex = NULL;
00d2d13d
JM		 1778 return;
1779 }
1780
1781 if (pkex->exch_req_wait_time && pkex->exchange_req) {
1782 /* Wait for PKEX Exchange Response frame and retry request if
1783 * no response is seen. */
1784 eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
1785 eloop_register_timeout(pkex->exch_req_wait_time / 1000,
1786 (pkex->exch_req_wait_time % 1000) * 1000,
1787 wpas_dpp_pkex_retry_timeout, wpa_s,
1788 NULL);
e0247e79 1789 }
500ed7f0
JM		 1790}
1791
1792
1793static void
1794wpas_dpp_rx_pkex_exchange_req(struct wpa_supplicant *wpa_s, const u8 *src,
1795 const u8 *buf, size_t len, unsigned int freq)
1796{
1797 struct wpabuf *msg;
1798 unsigned int wait_time;
1799
1800 wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Request from " MACSTR,
1801 MAC2STR(src));
1802
1803 /* TODO: Support multiple PKEX codes by iterating over all the enabled
1804 * values here */
1805
1806 if (!wpa_s->dpp_pkex_code || !wpa_s->dpp_pkex_bi) {
1807 wpa_printf(MSG_DEBUG,
1808 "DPP: No PKEX code configured - ignore request");
1809 return;
1810 }
1811
1812 if (wpa_s->dpp_pkex) {
1813 /* TODO: Support parallel operations */
1814 wpa_printf(MSG_DEBUG,
1815 "DPP: Already in PKEX session - ignore new request");
1816 return;
1817 }
1818
219d4c9f 1819 wpa_s->dpp_pkex = dpp_pkex_rx_exchange_req(wpa_s, wpa_s->dpp_pkex_bi,
500ed7f0
JM		 1820 wpa_s->own_addr, src,
1821 wpa_s->dpp_pkex_identifier,
1822 wpa_s->dpp_pkex_code,
1823 buf, len);
1824 if (!wpa_s->dpp_pkex) {
1825 wpa_printf(MSG_DEBUG,
1826 "DPP: Failed to process the request - ignore it");
1827 return;
1828 }
1829
1830 msg = wpa_s->dpp_pkex->exchange_resp;
1831 wait_time = wpa_s->max_remain_on_chan;
1832 if (wait_time > 2000)
1833 wait_time = 2000;
af48810b
JM		 1834 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1835 MAC2STR(src), freq, DPP_PA_PKEX_EXCHANGE_RESP);
500ed7f0
JM		 1836 offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
1837 broadcast,
1838 wpabuf_head(msg), wpabuf_len(msg),
1839 wait_time, wpas_dpp_tx_pkex_status, 0);
1840}
1841
1842
1843static void
1844wpas_dpp_rx_pkex_exchange_resp(struct wpa_supplicant *wpa_s, const u8 *src,
1845 const u8 *buf, size_t len, unsigned int freq)
1846{
1847 struct wpabuf *msg;
1848 unsigned int wait_time;
1849
1850 wpa_printf(MSG_DEBUG, "DPP: PKEX Exchange Response from " MACSTR,
1851 MAC2STR(src));
1852
1853 /* TODO: Support multiple PKEX codes by iterating over all the enabled
1854 * values here */
1855
1856 if (!wpa_s->dpp_pkex || !wpa_s->dpp_pkex->initiator ||
1857 wpa_s->dpp_pkex->exchange_done) {
1858 wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
1859 return;
1860 }
1861
00d2d13d
JM		 1862 eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
1863 wpa_s->dpp_pkex->exch_req_wait_time = 0;
1864
af4103e5 1865 msg = dpp_pkex_rx_exchange_resp(wpa_s->dpp_pkex, src, buf, len);
500ed7f0
JM		 1866 if (!msg) {
1867 wpa_printf(MSG_DEBUG, "DPP: Failed to process the response");
1868 return;
1869 }
1870
1871 wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Request to " MACSTR,
1872 MAC2STR(src));
1873
1874 wait_time = wpa_s->max_remain_on_chan;
1875 if (wait_time > 2000)
1876 wait_time = 2000;
af48810b
JM		 1877 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1878 MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_REQ);
500ed7f0
JM		 1879 offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
1880 broadcast,
1881 wpabuf_head(msg), wpabuf_len(msg),
1882 wait_time, wpas_dpp_tx_pkex_status, 0);
1883 wpabuf_free(msg);
1884}
1885
1886
de029861
JM		 1887static struct dpp_bootstrap_info *
1888wpas_dpp_pkex_finish(struct wpa_supplicant *wpa_s, const u8 *peer,
1889 unsigned int freq)
1890{
1891 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
1892 struct dpp_bootstrap_info *bi;
1893
1894 bi = os_zalloc(sizeof(*bi));
1895 if (!bi)
1896 return NULL;
1897 bi->id = wpas_dpp_next_id(wpa_s);
1898 bi->type = DPP_BOOTSTRAP_PKEX;
1899 os_memcpy(bi->mac_addr, peer, ETH_ALEN);
1900 bi->num_freq = 1;
1901 bi->freq[0] = freq;
1902 bi->curve = pkex->own_bi->curve;
1903 bi->pubkey = pkex->peer_bootstrap_key;
1904 pkex->peer_bootstrap_key = NULL;
1905 dpp_pkex_free(pkex);
1906 wpa_s->dpp_pkex = NULL;
1907 if (dpp_bootstrap_key_hash(bi) < 0) {
1908 dpp_bootstrap_info_free(bi);
1909 return NULL;
1910 }
1911 dl_list_add(&wpa_s->dpp_bootstrap, &bi->list);
1912 return bi;
1913}
1914
1915
500ed7f0
JM		 1916static void
1917wpas_dpp_rx_pkex_commit_reveal_req(struct wpa_supplicant *wpa_s, const u8 *src,
4be5bc98
JM		 1918 const u8 *hdr, const u8 *buf, size_t len,
1919 unsigned int freq)
500ed7f0
JM		 1920{
1921 struct wpabuf *msg;
1922 unsigned int wait_time;
1923 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
500ed7f0
JM		 1924
1925 wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Request from " MACSTR,
1926 MAC2STR(src));
1927
1928 if (!pkex || pkex->initiator || !pkex->exchange_done) {
1929 wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
1930 return;
1931 }
1932
4be5bc98 1933 msg = dpp_pkex_rx_commit_reveal_req(pkex, hdr, buf, len);
500ed7f0
JM		 1934 if (!msg) {
1935 wpa_printf(MSG_DEBUG, "DPP: Failed to process the request");
039b8e73
JM		 1936 if (pkex->failed) {
1937 wpa_printf(MSG_DEBUG, "DPP: Terminate PKEX exchange");
29ab69e4
JM		 1938 if (pkex->t > pkex->own_bi->pkex_t)
1939 pkex->own_bi->pkex_t = pkex->t;
039b8e73
JM		 1940 dpp_pkex_free(wpa_s->dpp_pkex);
1941 wpa_s->dpp_pkex = NULL;
1942 }
500ed7f0
JM		 1943 return;
1944 }
1945
1946 wpa_printf(MSG_DEBUG, "DPP: Send PKEX Commit-Reveal Response to "
1947 MACSTR, MAC2STR(src));
1948
1949 wait_time = wpa_s->max_remain_on_chan;
1950 if (wait_time > 2000)
1951 wait_time = 2000;
af48810b
JM		 1952 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
1953 MAC2STR(src), freq, DPP_PA_PKEX_COMMIT_REVEAL_RESP);
500ed7f0
JM		 1954 offchannel_send_action(wpa_s, freq, src, wpa_s->own_addr,
1955 broadcast,
1956 wpabuf_head(msg), wpabuf_len(msg),
1957 wait_time, wpas_dpp_tx_pkex_status, 0);
1958 wpabuf_free(msg);
1959
de029861 1960 wpas_dpp_pkex_finish(wpa_s, src, freq);
500ed7f0
JM		 1961}
1962
1963
1964static void
1965wpas_dpp_rx_pkex_commit_reveal_resp(struct wpa_supplicant *wpa_s, const u8 *src,
4be5bc98 1966 const u8 *hdr, const u8 *buf, size_t len,
500ed7f0
JM		 1967 unsigned int freq)
1968{
1969 int res;
de029861 1970 struct dpp_bootstrap_info *bi;
500ed7f0
JM		 1971 struct dpp_pkex *pkex = wpa_s->dpp_pkex;
1972 char cmd[500];
1973
1974 wpa_printf(MSG_DEBUG, "DPP: PKEX Commit-Reveal Response from " MACSTR,
1975 MAC2STR(src));
1976
1977 if (!pkex || !pkex->initiator || !pkex->exchange_done) {
1978 wpa_printf(MSG_DEBUG, "DPP: No matching PKEX session");
1979 return;
1980 }
1981
4be5bc98 1982 res = dpp_pkex_rx_commit_reveal_resp(pkex, hdr, buf, len);
500ed7f0
JM		 1983 if (res < 0) {
1984 wpa_printf(MSG_DEBUG, "DPP: Failed to process the response");
1985 return;
1986 }
1987
de029861 1988 bi = wpas_dpp_pkex_finish(wpa_s, src, freq);
500ed7f0
JM		 1989 if (!bi)
1990 return;
500ed7f0
JM		 1991
1992 os_snprintf(cmd, sizeof(cmd), " peer=%u %s",
1993 bi->id,
1994 wpa_s->dpp_pkex_auth_cmd ? wpa_s->dpp_pkex_auth_cmd : "");
1995 wpa_printf(MSG_DEBUG,
1996 "DPP: Start authentication after PKEX with parameters: %s",
1997 cmd);
1998 if (wpas_dpp_auth_init(wpa_s, cmd) < 0) {
1999 wpa_printf(MSG_DEBUG,
2000 "DPP: Authentication initialization failed");
2001 return;
2002 }
2003}
2004
2005
30d27b04
JM		 2006void wpas_dpp_rx_action(struct wpa_supplicant *wpa_s, const u8 *src,
2007 const u8 *buf, size_t len, unsigned int freq)
2008{
8c19ea3f 2009 u8 crypto_suite;
30d27b04 2010 enum dpp_public_action_frame_type type;
dc4d271c 2011 const u8 *hdr;
29ab69e4 2012 unsigned int pkex_t;
30d27b04 2013
dc4d271c
JM		 2014 if (len < DPP_HDR_LEN)
2015 return;
2016 if (WPA_GET_BE24(buf) != OUI_WFA || buf[3] != DPP_OUI_TYPE)
30d27b04 2017 return;
dc4d271c
JM		 2018 hdr = buf;
2019 buf += 4;
2020 len -= 4;
8c19ea3f
JM		 2021 crypto_suite = *buf++;
2022 type = *buf++;
2023 len -= 2;
30d27b04
JM		 2024
2025 wpa_printf(MSG_DEBUG,
8c19ea3f 2026 "DPP: Received DPP Public Action frame crypto suite %u type %d from "
30d27b04 2027 MACSTR " freq=%u",
8c19ea3f
JM		 2028 crypto_suite, type, MAC2STR(src), freq);
2029 if (crypto_suite != 1) {
2030 wpa_printf(MSG_DEBUG, "DPP: Unsupported crypto suite %u",
2031 crypto_suite);
a7073934
JM		 2032 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR
2033 " freq=%u type=%d ignore=unsupported-crypto-suite",
2034 MAC2STR(src), freq, type);
8c19ea3f
JM		 2035 return;
2036 }
30d27b04 2037 wpa_hexdump(MSG_MSGDUMP, "DPP: Received message attributes", buf, len);
a7073934
JM		 2038 if (dpp_check_attrs(buf, len) < 0) {
2039 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR
2040 " freq=%u type=%d ignore=invalid-attributes",
2041 MAC2STR(src), freq, type);
30d27b04 2042 return;
a7073934
JM		 2043 }
2044 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_RX "src=" MACSTR " freq=%u type=%d",
2045 MAC2STR(src), freq, type);
30d27b04
JM		 2046
2047 switch (type) {
2048 case DPP_PA_AUTHENTICATION_REQ:
dc4d271c 2049 wpas_dpp_rx_auth_req(wpa_s, src, hdr, buf, len, freq);
30d27b04
JM		 2050 break;
2051 case DPP_PA_AUTHENTICATION_RESP:
d2709206 2052 wpas_dpp_rx_auth_resp(wpa_s, src, hdr, buf, len, freq);
30d27b04
JM		 2053 break;
2054 case DPP_PA_AUTHENTICATION_CONF:
dc4d271c 2055 wpas_dpp_rx_auth_conf(wpa_s, src, hdr, buf, len);
30d27b04 2056 break;
a0d5c56f
JM		 2057 case DPP_PA_PEER_DISCOVERY_RESP:
2058 wpas_dpp_rx_peer_disc_resp(wpa_s, src, buf, len);
2059 break;
500ed7f0
JM		 2060 case DPP_PA_PKEX_EXCHANGE_REQ:
2061 wpas_dpp_rx_pkex_exchange_req(wpa_s, src, buf, len, freq);
2062 break;
2063 case DPP_PA_PKEX_EXCHANGE_RESP:
2064 wpas_dpp_rx_pkex_exchange_resp(wpa_s, src, buf, len, freq);
2065 break;
2066 case DPP_PA_PKEX_COMMIT_REVEAL_REQ:
4be5bc98
JM		 2067 wpas_dpp_rx_pkex_commit_reveal_req(wpa_s, src, hdr, buf, len,
2068 freq);
500ed7f0
JM		 2069 break;
2070 case DPP_PA_PKEX_COMMIT_REVEAL_RESP:
4be5bc98
JM		 2071 wpas_dpp_rx_pkex_commit_reveal_resp(wpa_s, src, hdr, buf, len,
2072 freq);
500ed7f0 2073 break;
30d27b04
JM		 2074 default:
2075 wpa_printf(MSG_DEBUG,
2076 "DPP: Ignored unsupported frame subtype %d", type);
2077 break;
2078 }
29ab69e4
JM		 2079
2080 if (wpa_s->dpp_pkex)
2081 pkex_t = wpa_s->dpp_pkex->t;
2082 else if (wpa_s->dpp_pkex_bi)
2083 pkex_t = wpa_s->dpp_pkex_bi->pkex_t;
2084 else
2085 pkex_t = 0;
2086 if (pkex_t >= PKEX_COUNTER_T_LIMIT) {
2087 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_PKEX_T_LIMIT "id=0");
2088 wpas_dpp_pkex_remove(wpa_s, "*");
2089 }
30d27b04
JM		 2090}
2091
2092
461d39af
JM		 2093static struct wpabuf *
2094wpas_dpp_gas_req_handler(void *ctx, const u8 *sa, const u8 *query,
2095 size_t query_len)
2096{
2097 struct wpa_supplicant *wpa_s = ctx;
2098 struct dpp_authentication *auth = wpa_s->dpp_auth;
2099 struct wpabuf *resp;
2100
2101 wpa_printf(MSG_DEBUG, "DPP: GAS request from " MACSTR,
2102 MAC2STR(sa));
2103 if (!auth || !auth->auth_success ||
2104 os_memcmp(sa, auth->peer_mac_addr, ETH_ALEN) != 0) {
2105 wpa_printf(MSG_DEBUG, "DPP: No matching exchange in progress");
2106 return NULL;
2107 }
2108 wpa_hexdump(MSG_DEBUG,
2109 "DPP: Received Configuration Request (GAS Query Request)",
2110 query, query_len);
fd920954
JM		 2111 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_REQ_RX "src=" MACSTR,
2112 MAC2STR(sa));
461d39af
JM		 2113 resp = dpp_conf_req_rx(auth, query, query_len);
2114 if (!resp)
2115 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
82feacce 2116 auth->conf_resp = resp;
461d39af
JM		 2117 return resp;
2118}
2119
2120
2121static void
2122wpas_dpp_gas_status_handler(void *ctx, struct wpabuf *resp, int ok)
2123{
2124 struct wpa_supplicant *wpa_s = ctx;
2125 struct dpp_authentication *auth = wpa_s->dpp_auth;
2126
2127 if (!auth) {
2128 wpabuf_free(resp);
2129 return;
2130 }
82feacce
JM		 2131 if (auth->conf_resp != resp) {
2132 wpa_printf(MSG_DEBUG,
2133 "DPP: Ignore GAS status report (ok=%d) for unknown response",
2134 ok);
2135 wpabuf_free(resp);
2136 return;
2137 }
461d39af
JM		 2138
2139 wpa_printf(MSG_DEBUG, "DPP: Configuration exchange completed (ok=%d)",
2140 ok);
2141 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
95b0104a 2142 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
461d39af
JM		 2143 offchannel_send_action_done(wpa_s);
2144 wpas_dpp_listen_stop(wpa_s);
2145 if (ok)
2146 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_SENT);
2147 else
2148 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_CONF_FAILED);
2149 dpp_auth_deinit(wpa_s->dpp_auth);
2150 wpa_s->dpp_auth = NULL;
2151 wpabuf_free(resp);
2152}
2153
2154
2155static unsigned int wpas_dpp_next_configurator_id(struct wpa_supplicant *wpa_s)
2156{
2157 struct dpp_configurator *conf;
2158 unsigned int max_id = 0;
2159
2160 dl_list_for_each(conf, &wpa_s->dpp_configurator,
2161 struct dpp_configurator, list) {
2162 if (conf->id > max_id)
2163 max_id = conf->id;
2164 }
2165 return max_id + 1;
2166}
2167
2168
2169int wpas_dpp_configurator_add(struct wpa_supplicant *wpa_s, const char *cmd)
2170{
c77e2ff0 2171 char *curve = NULL;
461d39af
JM		 2172 char *key = NULL;
2173 u8 *privkey = NULL;
2174 size_t privkey_len = 0;
2175 int ret = -1;
2176 struct dpp_configurator *conf = NULL;
2177
461d39af
JM		 2178 curve = get_param(cmd, " curve=");
2179 key = get_param(cmd, " key=");
2180
2181 if (key) {
2182 privkey_len = os_strlen(key) / 2;
2183 privkey = os_malloc(privkey_len);
2184 if (!privkey ||
2185 hexstr2bin(key, privkey, privkey_len) < 0)
2186 goto fail;
2187 }
2188
2189 conf = dpp_keygen_configurator(curve, privkey, privkey_len);
2190 if (!conf)
2191 goto fail;
2192
461d39af
JM		 2193 conf->id = wpas_dpp_next_configurator_id(wpa_s);
2194 dl_list_add(&wpa_s->dpp_configurator, &conf->list);
2195 ret = conf->id;
2196 conf = NULL;
2197fail:
2198 os_free(curve);
461d39af
JM		 2199 str_clear_free(key);
2200 bin_clear_free(privkey, privkey_len);
2201 dpp_configurator_free(conf);
2202 return ret;
2203}
2204
2205
2206static int dpp_configurator_del(struct wpa_supplicant *wpa_s, unsigned int id)
2207{
2208 struct dpp_configurator *conf, *tmp;
2209 int found = 0;
2210
2211 dl_list_for_each_safe(conf, tmp, &wpa_s->dpp_configurator,
2212 struct dpp_configurator, list) {
2213 if (id && conf->id != id)
2214 continue;
2215 found = 1;
2216 dl_list_del(&conf->list);
2217 dpp_configurator_free(conf);
2218 }
2219
2220 if (id == 0)
2221 return 0; /* flush succeeds regardless of entries found */
2222 return found ? 0 : -1;
2223}
2224
2225
2226int wpas_dpp_configurator_remove(struct wpa_supplicant *wpa_s, const char *id)
2227{
2228 unsigned int id_val;
2229
2230 if (os_strcmp(id, "*") == 0) {
2231 id_val = 0;
2232 } else {
2233 id_val = atoi(id);
2234 if (id_val == 0)
2235 return -1;
2236 }
2237
2238 return dpp_configurator_del(wpa_s, id_val);
2239}
2240
2241
f522bb23
JM		 2242int wpas_dpp_configurator_sign(struct wpa_supplicant *wpa_s, const char *cmd)
2243{
2244 struct dpp_authentication *auth;
2245 int ret = -1;
2246 char *curve = NULL;
2247
2248 auth = os_zalloc(sizeof(*auth));
2249 if (!auth)
2250 return -1;
2251
2252 curve = get_param(cmd, " curve=");
2253 wpas_dpp_set_configurator(wpa_s, auth, cmd);
2254
a2588be8 2255 if (dpp_configurator_own_config(auth, curve, 0) == 0) {
f522bb23
JM		 2256 wpas_dpp_handle_config_obj(wpa_s, auth);
2257 ret = 0;
2258 }
2259
2260 dpp_auth_deinit(auth);
2261 os_free(curve);
2262
2263 return ret;
2264}
2265
2266
a0d5c56f
JM		 2267static void
2268wpas_dpp_tx_introduction_status(struct wpa_supplicant *wpa_s,
2269 unsigned int freq, const u8 *dst,
2270 const u8 *src, const u8 *bssid,
2271 const u8 *data, size_t data_len,
2272 enum offchannel_send_action_result result)
2273{
af48810b
JM		 2274 const char *res_txt;
2275
2276 res_txt = result == OFFCHANNEL_SEND_ACTION_SUCCESS ? "SUCCESS" :
2277 (result == OFFCHANNEL_SEND_ACTION_NO_ACK ? "no-ACK" :
2278 "FAILED");
a0d5c56f
JM		 2279 wpa_printf(MSG_DEBUG, "DPP: TX status: freq=%u dst=" MACSTR
2280 " result=%s (DPP Peer Discovery Request)",
af48810b
JM		 2281 freq, MAC2STR(dst), res_txt);
2282 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX_STATUS "dst=" MACSTR
2283 " freq=%u result=%s", MAC2STR(dst), freq, res_txt);
a0d5c56f
JM		 2284 /* TODO: Time out wait for response more quickly in error cases? */
2285}
2286
2287
2288int wpas_dpp_check_connect(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
2289 struct wpa_bss *bss)
2290{
2291 struct os_time now;
2292 struct wpabuf *msg;
2293 unsigned int wait_time;
2294
2295 if (!(ssid->key_mgmt & WPA_KEY_MGMT_DPP) || !bss)
2296 return 0; /* Not using DPP AKM - continue */
2297 if (wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid))
2298 return 0; /* PMKSA exists for DPP AKM - continue */
2299
2300 if (!ssid->dpp_connector || !ssid->dpp_netaccesskey ||
2301 !ssid->dpp_csign) {
2302 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR
2303 "missing %s",
2304 !ssid->dpp_connector ? "Connector" :
2305 (!ssid->dpp_netaccesskey ? "netAccessKey" :
2306 "C-sign-key"));
2307 return -1;
2308 }
2309
2310 os_get_time(&now);
2311
a0d5c56f 2312 if (ssid->dpp_netaccesskey_expiry &&
3ca4be1e 2313 (os_time_t) ssid->dpp_netaccesskey_expiry < now.sec) {
a0d5c56f
JM		 2314 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_MISSING_CONNECTOR
2315 "netAccessKey expired");
2316 return -1;
2317 }
2318
2319 wpa_printf(MSG_DEBUG,
2320 "DPP: Starting network introduction protocol to derive PMKSA for "
2321 MACSTR, MAC2STR(bss->bssid));
2322
2323 msg = dpp_alloc_msg(DPP_PA_PEER_DISCOVERY_REQ,
85fd8263 2324 5 + 4 + os_strlen(ssid->dpp_connector));
a0d5c56f
JM		 2325 if (!msg)
2326 return -1;
2327
a306ed5a
JM		 2328#ifdef CONFIG_TESTING_OPTIONS
2329 if (dpp_test == DPP_TEST_NO_TRANSACTION_ID_PEER_DISC_REQ) {
2330 wpa_printf(MSG_INFO, "DPP: TESTING - no Transaction ID");
2331 goto skip_trans_id;
2332 }
55c6c858
JM		 2333 if (dpp_test == DPP_TEST_INVALID_TRANSACTION_ID_PEER_DISC_REQ) {
2334 wpa_printf(MSG_INFO, "DPP: TESTING - invalid Transaction ID");
2335 wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID);
2336 wpabuf_put_le16(msg, 0);
2337 goto skip_trans_id;
2338 }
a306ed5a
JM		 2339#endif /* CONFIG_TESTING_OPTIONS */
2340
85fd8263
JM		 2341 /* Transaction ID */
2342 wpabuf_put_le16(msg, DPP_ATTR_TRANSACTION_ID);
2343 wpabuf_put_le16(msg, 1);
2344 wpabuf_put_u8(msg, TRANSACTION_ID);
2345
a306ed5a
JM		 2346#ifdef CONFIG_TESTING_OPTIONS
2347skip_trans_id:
2348 if (dpp_test == DPP_TEST_NO_CONNECTOR_PEER_DISC_REQ) {
2349 wpa_printf(MSG_INFO, "DPP: TESTING - no Connector");
2350 goto skip_connector;
2351 }
4b8de0c9
JM		 2352 if (dpp_test == DPP_TEST_INVALID_CONNECTOR_PEER_DISC_REQ) {
2353 char *connector;
2354
2355 wpa_printf(MSG_INFO, "DPP: TESTING - invalid Connector");
2356 connector = dpp_corrupt_connector_signature(
2357 ssid->dpp_connector);
2358 if (!connector) {
2359 wpabuf_free(msg);
2360 return -1;
2361 }
2362 wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR);
2363 wpabuf_put_le16(msg, os_strlen(connector));
2364 wpabuf_put_str(msg, connector);
2365 os_free(connector);
2366 goto skip_connector;
2367 }
a306ed5a
JM		 2368#endif /* CONFIG_TESTING_OPTIONS */
2369
a0d5c56f
JM		 2370 /* DPP Connector */
2371 wpabuf_put_le16(msg, DPP_ATTR_CONNECTOR);
2372 wpabuf_put_le16(msg, os_strlen(ssid->dpp_connector));
2373 wpabuf_put_str(msg, ssid->dpp_connector);
2374
a306ed5a
JM		 2375#ifdef CONFIG_TESTING_OPTIONS
2376skip_connector:
2377#endif /* CONFIG_TESTING_OPTIONS */
2378
a0d5c56f
JM		 2379 /* TODO: Timeout on AP response */
2380 wait_time = wpa_s->max_remain_on_chan;
2381 if (wait_time > 2000)
2382 wait_time = 2000;
af48810b
JM		 2383 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR " freq=%u type=%d",
2384 MAC2STR(bss->bssid), bss->freq, DPP_PA_PEER_DISCOVERY_REQ);
a0d5c56f
JM		 2385 offchannel_send_action(wpa_s, bss->freq, bss->bssid, wpa_s->own_addr,
2386 broadcast,
2387 wpabuf_head(msg), wpabuf_len(msg),
2388 wait_time, wpas_dpp_tx_introduction_status, 0);
2389 wpabuf_free(msg);
2390
2391 /* Request this connection attempt to terminate - new one will be
2392 * started when network introduction protocol completes */
2393 os_memcpy(wpa_s->dpp_intro_bssid, bss->bssid, ETH_ALEN);
2394 wpa_s->dpp_intro_network = ssid;
2395 return 1;
2396}
2397
2398
500ed7f0
JM		 2399int wpas_dpp_pkex_add(struct wpa_supplicant *wpa_s, const char *cmd)
2400{
2401 struct dpp_bootstrap_info *own_bi;
2402 const char *pos, *end;
2403 unsigned int wait_time;
2404
2405 pos = os_strstr(cmd, " own=");
2406 if (!pos)
2407 return -1;
2408 pos += 5;
2409 own_bi = dpp_bootstrap_get_id(wpa_s, atoi(pos));
2410 if (!own_bi) {
2411 wpa_printf(MSG_DEBUG,
2412 "DPP: Identified bootstrap info not found");
2413 return -1;
2414 }
2415 if (own_bi->type != DPP_BOOTSTRAP_PKEX) {
2416 wpa_printf(MSG_DEBUG,
2417 "DPP: Identified bootstrap info not for PKEX");
2418 return -1;
2419 }
2420 wpa_s->dpp_pkex_bi = own_bi;
29ab69e4 2421 own_bi->pkex_t = 0; /* clear pending errors on new code */
500ed7f0
JM		 2422
2423 os_free(wpa_s->dpp_pkex_identifier);
2424 wpa_s->dpp_pkex_identifier = NULL;
2425 pos = os_strstr(cmd, " identifier=");
2426 if (pos) {
2427 pos += 12;
2428 end = os_strchr(pos, ' ');
2429 if (!end)
2430 return -1;
2431 wpa_s->dpp_pkex_identifier = os_malloc(end - pos + 1);
2432 if (!wpa_s->dpp_pkex_identifier)
2433 return -1;
2434 os_memcpy(wpa_s->dpp_pkex_identifier, pos, end - pos);
2435 wpa_s->dpp_pkex_identifier[end - pos] = '\0';
2436 }
2437
2438 pos = os_strstr(cmd, " code=");
2439 if (!pos)
2440 return -1;
2441 os_free(wpa_s->dpp_pkex_code);
2442 wpa_s->dpp_pkex_code = os_strdup(pos + 6);
2443 if (!wpa_s->dpp_pkex_code)
2444 return -1;
2445
2446 if (os_strstr(cmd, " init=1")) {
00d2d13d 2447 struct dpp_pkex *pkex;
500ed7f0
JM		 2448 struct wpabuf *msg;
2449
2450 wpa_printf(MSG_DEBUG, "DPP: Initiating PKEX");
2451 dpp_pkex_free(wpa_s->dpp_pkex);
219d4c9f 2452 wpa_s->dpp_pkex = dpp_pkex_init(wpa_s, own_bi, wpa_s->own_addr,
500ed7f0
JM		 2453 wpa_s->dpp_pkex_identifier,
2454 wpa_s->dpp_pkex_code);
00d2d13d
JM		 2455 pkex = wpa_s->dpp_pkex;
2456 if (!pkex)
500ed7f0
JM		 2457 return -1;
2458
00d2d13d 2459 msg = pkex->exchange_req;
500ed7f0
JM		 2460 wait_time = wpa_s->max_remain_on_chan;
2461 if (wait_time > 2000)
2462 wait_time = 2000;
00d2d13d 2463 pkex->freq = 2437;
af48810b
JM		 2464 wpa_msg(wpa_s, MSG_INFO, DPP_EVENT_TX "dst=" MACSTR
2465 " freq=%u type=%d",
00d2d13d
JM		 2466 MAC2STR(broadcast), pkex->freq,
2467 DPP_PA_PKEX_EXCHANGE_REQ);
2468 offchannel_send_action(wpa_s, pkex->freq, broadcast,
2469 wpa_s->own_addr, broadcast,
500ed7f0
JM		 2470 wpabuf_head(msg), wpabuf_len(msg),
2471 wait_time, wpas_dpp_tx_pkex_status, 0);
00d2d13d
JM		 2472 if (wait_time == 0)
2473 wait_time = 2000;
2474 pkex->exch_req_wait_time = wait_time;
2475 pkex->exch_req_tries = 1;
500ed7f0
JM		 2476 }
2477
2478 /* TODO: Support multiple PKEX info entries */
2479
2480 os_free(wpa_s->dpp_pkex_auth_cmd);
2481 wpa_s->dpp_pkex_auth_cmd = os_strdup(cmd);
2482
2483 return 1;
2484}
2485
2486
2487int wpas_dpp_pkex_remove(struct wpa_supplicant *wpa_s, const char *id)
2488{
2489 unsigned int id_val;
2490
2491 if (os_strcmp(id, "*") == 0) {
2492 id_val = 0;
2493 } else {
2494 id_val = atoi(id);
2495 if (id_val == 0)
2496 return -1;
2497 }
2498
2499 if ((id_val != 0 && id_val != 1) || !wpa_s->dpp_pkex_code)
2500 return -1;
2501
2502 /* TODO: Support multiple PKEX entries */
2503 os_free(wpa_s->dpp_pkex_code);
2504 wpa_s->dpp_pkex_code = NULL;
2505 os_free(wpa_s->dpp_pkex_identifier);
2506 wpa_s->dpp_pkex_identifier = NULL;
2507 os_free(wpa_s->dpp_pkex_auth_cmd);
2508 wpa_s->dpp_pkex_auth_cmd = NULL;
2509 wpa_s->dpp_pkex_bi = NULL;
2510 /* TODO: Remove dpp_pkex only if it is for the identified PKEX code */
2511 dpp_pkex_free(wpa_s->dpp_pkex);
2512 wpa_s->dpp_pkex = NULL;
2513 return 0;
2514}
2515
2516
c1d37739
JM		 2517void wpas_dpp_stop(struct wpa_supplicant *wpa_s)
2518{
2519 dpp_auth_deinit(wpa_s->dpp_auth);
2520 wpa_s->dpp_auth = NULL;
ed62d401
JM		 2521 dpp_pkex_free(wpa_s->dpp_pkex);
2522 wpa_s->dpp_pkex = NULL;
1866dfb5
JM		 2523 if (wpa_s->dpp_gas_client && wpa_s->dpp_gas_dialog_token >= 0)
2524 gas_query_stop(wpa_s->gas, wpa_s->dpp_gas_dialog_token);
c1d37739
JM		 2525}
2526
2527
be27e185
JM		 2528int wpas_dpp_init(struct wpa_supplicant *wpa_s)
2529{
461d39af
JM		 2530 u8 adv_proto_id[7];
2531
2532 adv_proto_id[0] = WLAN_EID_VENDOR_SPECIFIC;
2533 adv_proto_id[1] = 5;
2534 WPA_PUT_BE24(&adv_proto_id[2], OUI_WFA);
2535 adv_proto_id[5] = DPP_OUI_TYPE;
2536 adv_proto_id[6] = 0x01;
2537
2538 if (gas_server_register(wpa_s->gas_server, adv_proto_id,
2539 sizeof(adv_proto_id), wpas_dpp_gas_req_handler,
2540 wpas_dpp_gas_status_handler, wpa_s) < 0)
2541 return -1;
be27e185 2542 dl_list_init(&wpa_s->dpp_bootstrap);
461d39af 2543 dl_list_init(&wpa_s->dpp_configurator);
be27e185
JM		 2544 wpa_s->dpp_init_done = 1;
2545 return 0;
2546}
2547
2548
2549void wpas_dpp_deinit(struct wpa_supplicant *wpa_s)
2550{
461d39af
JM		 2551#ifdef CONFIG_TESTING_OPTIONS
2552 os_free(wpa_s->dpp_config_obj_override);
2553 wpa_s->dpp_config_obj_override = NULL;
2554 os_free(wpa_s->dpp_discovery_override);
2555 wpa_s->dpp_discovery_override = NULL;
2556 os_free(wpa_s->dpp_groups_override);
2557 wpa_s->dpp_groups_override = NULL;
461d39af
JM		 2558 wpa_s->dpp_ignore_netaccesskey_mismatch = 0;
2559#endif /* CONFIG_TESTING_OPTIONS */
be27e185
JM		 2560 if (!wpa_s->dpp_init_done)
2561 return;
00d2d13d 2562 eloop_cancel_timeout(wpas_dpp_pkex_retry_timeout, wpa_s, NULL);
30d27b04 2563 eloop_cancel_timeout(wpas_dpp_reply_wait_timeout, wpa_s, NULL);
f97ace34 2564 eloop_cancel_timeout(wpas_dpp_init_timeout, wpa_s, NULL);
95b0104a 2565 eloop_cancel_timeout(wpas_dpp_auth_resp_retry_timeout, wpa_s, NULL);
30d27b04
JM		 2566 offchannel_send_action_done(wpa_s);
2567 wpas_dpp_listen_stop(wpa_s);
be27e185 2568 dpp_bootstrap_del(wpa_s, 0);
461d39af 2569 dpp_configurator_del(wpa_s, 0);
fa5c9074 2570 wpas_dpp_stop(wpa_s);
500ed7f0 2571 wpas_dpp_pkex_remove(wpa_s, "*");
a0d5c56f 2572 os_memset(wpa_s->dpp_intro_bssid, 0, ETH_ALEN);
b65b22d6
JM		 2573 os_free(wpa_s->dpp_configurator_params);
2574 wpa_s->dpp_configurator_params = NULL;
be27e185 2575}
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