2 * Received Management frame processing
3 * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
15 #include "utils/includes.h"
17 #include "utils/common.h"
18 #include "common/ieee802_11_defs.h"
19 #include "common/ieee802_11_common.h"
20 #include "crypto/aes_wrap.h"
24 static const char * mgmt_stype(u16 stype)
27 case WLAN_FC_STYPE_ASSOC_REQ:
29 case WLAN_FC_STYPE_ASSOC_RESP:
31 case WLAN_FC_STYPE_REASSOC_REQ:
33 case WLAN_FC_STYPE_REASSOC_RESP:
34 return "REASSOC-RESP";
35 case WLAN_FC_STYPE_PROBE_REQ:
37 case WLAN_FC_STYPE_PROBE_RESP:
39 case WLAN_FC_STYPE_BEACON:
41 case WLAN_FC_STYPE_ATIM:
43 case WLAN_FC_STYPE_DISASSOC:
45 case WLAN_FC_STYPE_AUTH:
47 case WLAN_FC_STYPE_DEAUTH:
49 case WLAN_FC_STYPE_ACTION:
56 static void rx_mgmt_beacon(struct wlantest *wt, const u8 *data, size_t len)
58 const struct ieee80211_mgmt *mgmt;
59 struct wlantest_bss *bss;
60 struct ieee802_11_elems elems;
62 mgmt = (const struct ieee80211_mgmt *) data;
63 bss = bss_get(wt, mgmt->bssid);
66 if (bss->proberesp_seen)
67 return; /* do not override with Beacon data */
68 bss->capab_info = le_to_host16(mgmt->u.beacon.capab_info);
69 if (ieee802_11_parse_elems(mgmt->u.beacon.variable,
70 len - (mgmt->u.beacon.variable - data),
71 &elems, 0) == ParseFailed) {
72 if (bss->parse_error_reported)
74 wpa_printf(MSG_INFO, "Invalid IEs in a Beacon frame from "
75 MACSTR, MAC2STR(mgmt->sa));
76 bss->parse_error_reported = 1;
80 bss_update(wt, bss, &elems);
84 static void rx_mgmt_probe_resp(struct wlantest *wt, const u8 *data, size_t len)
86 const struct ieee80211_mgmt *mgmt;
87 struct wlantest_bss *bss;
88 struct ieee802_11_elems elems;
90 mgmt = (const struct ieee80211_mgmt *) data;
91 bss = bss_get(wt, mgmt->bssid);
95 bss->capab_info = le_to_host16(mgmt->u.probe_resp.capab_info);
96 if (ieee802_11_parse_elems(mgmt->u.probe_resp.variable,
97 len - (mgmt->u.probe_resp.variable - data),
98 &elems, 0) == ParseFailed) {
99 if (bss->parse_error_reported)
101 wpa_printf(MSG_INFO, "Invalid IEs in a Probe Response frame "
102 "from " MACSTR, MAC2STR(mgmt->sa));
103 bss->parse_error_reported = 1;
107 bss_update(wt, bss, &elems);
111 static void rx_mgmt_auth(struct wlantest *wt, const u8 *data, size_t len)
113 const struct ieee80211_mgmt *mgmt;
114 struct wlantest_bss *bss;
115 struct wlantest_sta *sta;
116 u16 alg, trans, status;
118 mgmt = (const struct ieee80211_mgmt *) data;
119 bss = bss_get(wt, mgmt->bssid);
122 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
123 sta = sta_get(bss, mgmt->da);
125 sta = sta_get(bss, mgmt->sa);
130 wpa_printf(MSG_INFO, "Too short Authentication frame from "
131 MACSTR, MAC2STR(mgmt->sa));
135 alg = le_to_host16(mgmt->u.auth.auth_alg);
136 trans = le_to_host16(mgmt->u.auth.auth_transaction);
137 status = le_to_host16(mgmt->u.auth.status_code);
139 wpa_printf(MSG_DEBUG, "AUTH " MACSTR " -> " MACSTR
140 " (alg=%u trans=%u status=%u)",
141 MAC2STR(mgmt->sa), MAC2STR(mgmt->da), alg, trans, status);
143 if (alg == 0 && trans == 2 && status == 0) {
144 if (sta->state == STATE1) {
145 wpa_printf(MSG_DEBUG, "STA " MACSTR
146 " moved to State 2 with " MACSTR,
147 MAC2STR(sta->addr), MAC2STR(bss->bssid));
152 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
153 sta->counters[WLANTEST_STA_COUNTER_AUTH_RX]++;
155 sta->counters[WLANTEST_STA_COUNTER_AUTH_TX]++;
159 static void deauth_all_stas(struct wlantest_bss *bss)
161 struct wlantest_sta *sta;
162 dl_list_for_each(sta, &bss->sta, struct wlantest_sta, list) {
163 if (sta->state == STATE1)
165 wpa_printf(MSG_DEBUG, "STA " MACSTR
166 " moved to State 1 with " MACSTR,
167 MAC2STR(sta->addr), MAC2STR(bss->bssid));
173 static void rx_mgmt_deauth(struct wlantest *wt, const u8 *data, size_t len,
176 const struct ieee80211_mgmt *mgmt;
177 struct wlantest_bss *bss;
178 struct wlantest_sta *sta;
180 mgmt = (const struct ieee80211_mgmt *) data;
181 bss = bss_get(wt, mgmt->bssid);
184 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
185 sta = sta_get(bss, mgmt->da);
187 sta = sta_get(bss, mgmt->sa);
190 wpa_printf(MSG_INFO, "Too short Deauthentication frame from "
191 MACSTR, MAC2STR(mgmt->sa));
195 wpa_printf(MSG_DEBUG, "DEAUTH " MACSTR " -> " MACSTR
196 " (reason=%u) (valid=%d)",
197 MAC2STR(mgmt->sa), MAC2STR(mgmt->da),
198 le_to_host16(mgmt->u.deauth.reason_code), valid);
199 wpa_hexdump(MSG_MSGDUMP, "DEAUTH payload", data + 24, len - 24);
202 if (valid && mgmt->da[0] == 0xff)
203 deauth_all_stas(bss);
207 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
208 sta->counters[valid ? WLANTEST_STA_COUNTER_VALID_DEAUTH_RX :
209 WLANTEST_STA_COUNTER_INVALID_DEAUTH_RX]++;
211 sta->counters[valid ? WLANTEST_STA_COUNTER_VALID_DEAUTH_TX :
212 WLANTEST_STA_COUNTER_INVALID_DEAUTH_TX]++;
215 wpa_printf(MSG_INFO, "Do not change STA " MACSTR " State "
216 "since Disassociation frame was not protected "
217 "correctly", MAC2STR(sta->addr));
221 if (sta->state != STATE1) {
222 wpa_printf(MSG_DEBUG, "STA " MACSTR
223 " moved to State 1 with " MACSTR,
224 MAC2STR(sta->addr), MAC2STR(bss->bssid));
230 static void rx_mgmt_assoc_req(struct wlantest *wt, const u8 *data, size_t len)
232 const struct ieee80211_mgmt *mgmt;
233 struct wlantest_bss *bss;
234 struct wlantest_sta *sta;
235 struct ieee802_11_elems elems;
237 mgmt = (const struct ieee80211_mgmt *) data;
238 bss = bss_get(wt, mgmt->bssid);
241 sta = sta_get(bss, mgmt->sa);
246 wpa_printf(MSG_INFO, "Too short Association Request frame "
247 "from " MACSTR, MAC2STR(mgmt->sa));
251 wpa_printf(MSG_DEBUG, "ASSOCREQ " MACSTR " -> " MACSTR
252 " (capab=0x%x listen_int=%u)",
253 MAC2STR(mgmt->sa), MAC2STR(mgmt->da),
254 le_to_host16(mgmt->u.assoc_req.capab_info),
255 le_to_host16(mgmt->u.assoc_req.listen_interval));
257 sta->counters[WLANTEST_STA_COUNTER_ASSOCREQ_TX]++;
259 if (ieee802_11_parse_elems(mgmt->u.assoc_req.variable,
260 len - (mgmt->u.assoc_req.variable - data),
261 &elems, 0) == ParseFailed) {
262 wpa_printf(MSG_INFO, "Invalid IEs in Association Request "
263 "frame from " MACSTR, MAC2STR(mgmt->sa));
267 sta->assocreq_capab_info = le_to_host16(mgmt->u.assoc_req.capab_info);
268 sta->assocreq_listen_int =
269 le_to_host16(mgmt->u.assoc_req.listen_interval);
270 os_free(sta->assocreq_ies);
271 sta->assocreq_ies_len = len - (mgmt->u.assoc_req.variable - data);
272 sta->assocreq_ies = os_malloc(sta->assocreq_ies_len);
273 if (sta->assocreq_ies)
274 os_memcpy(sta->assocreq_ies, mgmt->u.assoc_req.variable,
275 sta->assocreq_ies_len);
277 sta_update_assoc(sta, &elems);
281 static void rx_mgmt_assoc_resp(struct wlantest *wt, const u8 *data, size_t len)
283 const struct ieee80211_mgmt *mgmt;
284 struct wlantest_bss *bss;
285 struct wlantest_sta *sta;
286 u16 capab, status, aid;
288 mgmt = (const struct ieee80211_mgmt *) data;
289 bss = bss_get(wt, mgmt->bssid);
292 sta = sta_get(bss, mgmt->da);
297 wpa_printf(MSG_INFO, "Too short Association Response frame "
298 "from " MACSTR, MAC2STR(mgmt->sa));
302 capab = le_to_host16(mgmt->u.assoc_resp.capab_info);
303 status = le_to_host16(mgmt->u.assoc_resp.status_code);
304 aid = le_to_host16(mgmt->u.assoc_resp.aid);
306 wpa_printf(MSG_DEBUG, "ASSOCRESP " MACSTR " -> " MACSTR
307 " (capab=0x%x status=%u aid=%u)",
308 MAC2STR(mgmt->sa), MAC2STR(mgmt->da), capab, status,
311 if (status == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) {
312 struct ieee802_11_elems elems;
313 const u8 *ies = mgmt->u.assoc_resp.variable;
314 size_t ies_len = len - (mgmt->u.assoc_resp.variable - data);
315 if (ieee802_11_parse_elems(ies, ies_len, &elems, 0) ==
317 wpa_printf(MSG_INFO, "Failed to parse IEs in "
318 "AssocResp from " MACSTR,
320 } else if (elems.timeout_int == 0 ||
321 elems.timeout_int_len != 5) {
322 wpa_printf(MSG_INFO, "No valid Timeout Interval IE in "
323 "AssocResp (status=30) from " MACSTR,
327 WLANTEST_STA_COUNTER_ASSOCRESP_COMEBACK]++;
334 if ((aid & 0xc000) != 0xc000) {
335 wpa_printf(MSG_DEBUG, "Two MSBs of the AID were not set to 1 "
336 "in Association Response from " MACSTR,
339 sta->aid = aid & 0xc000;
341 if (sta->state < STATE2) {
342 wpa_printf(MSG_DEBUG, "STA " MACSTR " was not in State 2 when "
343 "getting associated", MAC2STR(sta->addr));
346 if (sta->state < STATE3) {
347 wpa_printf(MSG_DEBUG, "STA " MACSTR
348 " moved to State 3 with " MACSTR,
349 MAC2STR(sta->addr), MAC2STR(bss->bssid));
355 static void rx_mgmt_reassoc_req(struct wlantest *wt, const u8 *data,
358 const struct ieee80211_mgmt *mgmt;
359 struct wlantest_bss *bss;
360 struct wlantest_sta *sta;
361 struct ieee802_11_elems elems;
363 mgmt = (const struct ieee80211_mgmt *) data;
364 bss = bss_get(wt, mgmt->bssid);
367 sta = sta_get(bss, mgmt->sa);
371 if (len < 24 + 4 + ETH_ALEN) {
372 wpa_printf(MSG_INFO, "Too short Reassociation Request frame "
373 "from " MACSTR, MAC2STR(mgmt->sa));
377 wpa_printf(MSG_DEBUG, "REASSOCREQ " MACSTR " -> " MACSTR
378 " (capab=0x%x listen_int=%u current_ap=" MACSTR ")",
379 MAC2STR(mgmt->sa), MAC2STR(mgmt->da),
380 le_to_host16(mgmt->u.reassoc_req.capab_info),
381 le_to_host16(mgmt->u.reassoc_req.listen_interval),
382 MAC2STR(mgmt->u.reassoc_req.current_ap));
384 sta->counters[WLANTEST_STA_COUNTER_REASSOCREQ_TX]++;
386 if (ieee802_11_parse_elems(mgmt->u.reassoc_req.variable,
387 len - (mgmt->u.reassoc_req.variable - data),
388 &elems, 0) == ParseFailed) {
389 wpa_printf(MSG_INFO, "Invalid IEs in Reassociation Request "
390 "frame from " MACSTR, MAC2STR(mgmt->sa));
394 sta->assocreq_capab_info =
395 le_to_host16(mgmt->u.reassoc_req.capab_info);
396 sta->assocreq_listen_int =
397 le_to_host16(mgmt->u.reassoc_req.listen_interval);
398 os_free(sta->assocreq_ies);
399 sta->assocreq_ies_len = len - (mgmt->u.reassoc_req.variable - data);
400 sta->assocreq_ies = os_malloc(sta->assocreq_ies_len);
401 if (sta->assocreq_ies)
402 os_memcpy(sta->assocreq_ies, mgmt->u.reassoc_req.variable,
403 sta->assocreq_ies_len);
405 sta_update_assoc(sta, &elems);
409 static void rx_mgmt_reassoc_resp(struct wlantest *wt, const u8 *data,
412 const struct ieee80211_mgmt *mgmt;
413 struct wlantest_bss *bss;
414 struct wlantest_sta *sta;
415 u16 capab, status, aid;
417 mgmt = (const struct ieee80211_mgmt *) data;
418 bss = bss_get(wt, mgmt->bssid);
421 sta = sta_get(bss, mgmt->da);
426 wpa_printf(MSG_INFO, "Too short Reassociation Response frame "
427 "from " MACSTR, MAC2STR(mgmt->sa));
431 capab = le_to_host16(mgmt->u.reassoc_resp.capab_info);
432 status = le_to_host16(mgmt->u.reassoc_resp.status_code);
433 aid = le_to_host16(mgmt->u.reassoc_resp.aid);
435 wpa_printf(MSG_DEBUG, "REASSOCRESP " MACSTR " -> " MACSTR
436 " (capab=0x%x status=%u aid=%u)",
437 MAC2STR(mgmt->sa), MAC2STR(mgmt->da), capab, status,
440 if (status == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY) {
441 struct ieee802_11_elems elems;
442 const u8 *ies = mgmt->u.reassoc_resp.variable;
443 size_t ies_len = len - (mgmt->u.reassoc_resp.variable - data);
444 if (ieee802_11_parse_elems(ies, ies_len, &elems, 0) ==
446 wpa_printf(MSG_INFO, "Failed to parse IEs in "
447 "ReassocResp from " MACSTR,
449 } else if (elems.timeout_int == 0 ||
450 elems.timeout_int_len != 5) {
451 wpa_printf(MSG_INFO, "No valid Timeout Interval IE in "
452 "ReassocResp (status=30) from " MACSTR,
456 WLANTEST_STA_COUNTER_REASSOCRESP_COMEBACK]++;
463 if ((aid & 0xc000) != 0xc000) {
464 wpa_printf(MSG_DEBUG, "Two MSBs of the AID were not set to 1 "
465 "in Reassociation Response from " MACSTR,
468 sta->aid = aid & 0xc000;
470 if (sta->state < STATE2) {
471 wpa_printf(MSG_DEBUG, "STA " MACSTR " was not in State 2 when "
472 "getting associated", MAC2STR(sta->addr));
475 if (sta->state < STATE3) {
476 wpa_printf(MSG_DEBUG, "STA " MACSTR
477 " moved to State 3 with " MACSTR,
478 MAC2STR(sta->addr), MAC2STR(bss->bssid));
484 static void disassoc_all_stas(struct wlantest_bss *bss)
486 struct wlantest_sta *sta;
487 dl_list_for_each(sta, &bss->sta, struct wlantest_sta, list) {
488 if (sta->state <= STATE2)
490 wpa_printf(MSG_DEBUG, "STA " MACSTR
491 " moved to State 2 with " MACSTR,
492 MAC2STR(sta->addr), MAC2STR(bss->bssid));
498 static void rx_mgmt_disassoc(struct wlantest *wt, const u8 *data, size_t len,
501 const struct ieee80211_mgmt *mgmt;
502 struct wlantest_bss *bss;
503 struct wlantest_sta *sta;
505 mgmt = (const struct ieee80211_mgmt *) data;
506 bss = bss_get(wt, mgmt->bssid);
509 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
510 sta = sta_get(bss, mgmt->da);
512 sta = sta_get(bss, mgmt->sa);
515 wpa_printf(MSG_INFO, "Too short Disassociation frame from "
516 MACSTR, MAC2STR(mgmt->sa));
520 wpa_printf(MSG_DEBUG, "DISASSOC " MACSTR " -> " MACSTR
521 " (reason=%u) (valid=%d)",
522 MAC2STR(mgmt->sa), MAC2STR(mgmt->da),
523 le_to_host16(mgmt->u.disassoc.reason_code), valid);
524 wpa_hexdump(MSG_MSGDUMP, "DISASSOC payload", data + 24, len - 24);
527 if (valid && mgmt->da[0] == 0xff)
528 disassoc_all_stas(bss);
532 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
533 sta->counters[valid ? WLANTEST_STA_COUNTER_VALID_DISASSOC_RX :
534 WLANTEST_STA_COUNTER_INVALID_DISASSOC_RX]++;
536 sta->counters[valid ? WLANTEST_STA_COUNTER_VALID_DISASSOC_TX :
537 WLANTEST_STA_COUNTER_INVALID_DISASSOC_TX]++;
540 wpa_printf(MSG_INFO, "Do not change STA " MACSTR " State "
541 "since Disassociation frame was not protected "
542 "correctly", MAC2STR(sta->addr));
546 if (sta->state < STATE2) {
547 wpa_printf(MSG_DEBUG, "STA " MACSTR " was not in State 2 or 3 "
548 "when getting disassociated", MAC2STR(sta->addr));
551 if (sta->state > STATE2) {
552 wpa_printf(MSG_DEBUG, "STA " MACSTR
553 " moved to State 2 with " MACSTR,
554 MAC2STR(sta->addr), MAC2STR(bss->bssid));
560 static void rx_mgmt_action_sa_query_req(struct wlantest *wt,
561 struct wlantest_sta *sta,
562 const struct ieee80211_mgmt *mgmt,
563 size_t len, int valid)
568 rx_id = (const u8 *) mgmt->u.action.u.sa_query_req.trans_id;
569 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
570 id = sta->ap_sa_query_tr;
572 id = sta->sta_sa_query_tr;
573 wpa_printf(MSG_INFO, "SA Query Request " MACSTR " -> " MACSTR
574 " (trans_id=%02x%02x)%s",
575 MAC2STR(mgmt->sa), MAC2STR(mgmt->da), rx_id[0], rx_id[1],
576 valid ? "" : " (invalid protection)");
577 os_memcpy(id, mgmt->u.action.u.sa_query_req.trans_id, 2);
578 if (os_memcmp(mgmt->sa, sta->addr, ETH_ALEN) == 0)
579 sta->counters[valid ?
580 WLANTEST_STA_COUNTER_VALID_SAQUERYREQ_TX :
581 WLANTEST_STA_COUNTER_INVALID_SAQUERYREQ_TX]++;
583 sta->counters[valid ?
584 WLANTEST_STA_COUNTER_VALID_SAQUERYREQ_RX :
585 WLANTEST_STA_COUNTER_INVALID_SAQUERYREQ_RX]++;
589 static void rx_mgmt_action_sa_query_resp(struct wlantest *wt,
590 struct wlantest_sta *sta,
591 const struct ieee80211_mgmt *mgmt,
592 size_t len, int valid)
598 rx_id = (const u8 *) mgmt->u.action.u.sa_query_resp.trans_id;
599 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
600 id = sta->sta_sa_query_tr;
602 id = sta->ap_sa_query_tr;
603 match = os_memcmp(rx_id, id, 2) == 0;
604 wpa_printf(MSG_INFO, "SA Query Response " MACSTR " -> " MACSTR
605 " (trans_id=%02x%02x; %s)%s",
606 MAC2STR(mgmt->sa), MAC2STR(mgmt->da), rx_id[0], rx_id[1],
607 match ? "match" : "mismatch",
608 valid ? "" : " (invalid protection)");
609 if (os_memcmp(mgmt->sa, sta->addr, ETH_ALEN) == 0)
610 sta->counters[(valid && match) ?
611 WLANTEST_STA_COUNTER_VALID_SAQUERYRESP_TX :
612 WLANTEST_STA_COUNTER_INVALID_SAQUERYRESP_TX]++;
614 sta->counters[(valid && match) ?
615 WLANTEST_STA_COUNTER_VALID_SAQUERYRESP_RX :
616 WLANTEST_STA_COUNTER_INVALID_SAQUERYRESP_RX]++;
620 static void rx_mgmt_action_sa_query(struct wlantest *wt,
621 struct wlantest_sta *sta,
622 const struct ieee80211_mgmt *mgmt,
623 size_t len, int valid)
625 if (len < 24 + 2 + WLAN_SA_QUERY_TR_ID_LEN) {
626 wpa_printf(MSG_INFO, "Too short SA Query frame from " MACSTR,
631 if (len > 24 + 2 + WLAN_SA_QUERY_TR_ID_LEN) {
632 size_t elen = len - (24 + 2 + WLAN_SA_QUERY_TR_ID_LEN);
633 wpa_printf(MSG_INFO, "Unexpected %u octets of extra data at "
634 "the end of SA Query frame from " MACSTR,
635 (unsigned) elen, MAC2STR(mgmt->sa));
636 wpa_hexdump(MSG_INFO, "SA Query extra data",
637 ((const u8 *) mgmt) + len - elen, elen);
640 switch (mgmt->u.action.u.sa_query_req.action) {
641 case WLAN_SA_QUERY_REQUEST:
642 rx_mgmt_action_sa_query_req(wt, sta, mgmt, len, valid);
644 case WLAN_SA_QUERY_RESPONSE:
645 rx_mgmt_action_sa_query_resp(wt, sta, mgmt, len, valid);
648 wpa_printf(MSG_INFO, "Unexpected SA Query action value %u "
650 mgmt->u.action.u.sa_query_req.action,
656 static void rx_mgmt_action(struct wlantest *wt, const u8 *data, size_t len,
659 const struct ieee80211_mgmt *mgmt;
660 struct wlantest_bss *bss;
661 struct wlantest_sta *sta;
663 mgmt = (const struct ieee80211_mgmt *) data;
664 if (mgmt->da[0] & 0x01) {
665 wpa_printf(MSG_DEBUG, "Group addressed Action frame: DA="
666 MACSTR " SA=" MACSTR " BSSID=" MACSTR
668 MAC2STR(mgmt->da), MAC2STR(mgmt->sa),
669 MAC2STR(mgmt->bssid), mgmt->u.action.category);
670 return; /* Ignore group addressed Action frames for now */
672 bss = bss_get(wt, mgmt->bssid);
675 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
676 sta = sta_get(bss, mgmt->da);
678 sta = sta_get(bss, mgmt->sa);
683 wpa_printf(MSG_INFO, "Too short Action frame from "
684 MACSTR, MAC2STR(mgmt->sa));
688 wpa_printf(MSG_DEBUG, "ACTION " MACSTR " -> " MACSTR
689 " (category=%u) (valid=%d)",
690 MAC2STR(mgmt->sa), MAC2STR(mgmt->da),
691 mgmt->u.action.category, valid);
692 wpa_hexdump(MSG_MSGDUMP, "ACTION payload", data + 24, len - 24);
694 if (mgmt->u.action.category != WLAN_ACTION_PUBLIC &&
695 sta->state < STATE3) {
696 wpa_printf(MSG_INFO, "Action frame sent when STA is not in "
697 "State 3 (SA=" MACSTR " DATA=" MACSTR ")",
698 MAC2STR(mgmt->sa), MAC2STR(mgmt->da));
701 switch (mgmt->u.action.category) {
702 case WLAN_ACTION_SA_QUERY:
703 rx_mgmt_action_sa_query(wt, sta, mgmt, len, valid);
709 static int check_mmie_mic(const u8 *igtk, const u8 *data, size_t len)
714 const struct ieee80211_hdr *hdr;
716 buf = os_malloc(len + 20 - 24);
720 /* BIP AAD: FC(masked) A1 A2 A3 */
721 hdr = (const struct ieee80211_hdr *) data;
722 fc = le_to_host16(hdr->frame_control);
723 fc &= ~(WLAN_FC_RETRY | WLAN_FC_PWRMGT | WLAN_FC_MOREDATA);
724 WPA_PUT_LE16(buf, fc);
725 os_memcpy(buf + 2, hdr->addr1, 3 * ETH_ALEN);
727 /* Frame body with MMIE MIC masked to zero */
728 os_memcpy(buf + 20, data + 24, len - 24 - 8);
729 os_memset(buf + 20 + len - 24 - 8, 0, 8);
731 wpa_hexdump(MSG_MSGDUMP, "BIP: AAD|Body(masked)", buf, len + 20 - 24);
732 /* MIC = L(AES-128-CMAC(AAD || Frame Body(masked)), 0, 64) */
733 if (omac1_aes_128(igtk, buf, len + 20 - 24, mic) < 0) {
740 if (os_memcmp(data + len - 8, mic, 8) != 0)
747 static int check_bip(struct wlantest *wt, const u8 *data, size_t len)
749 const struct ieee80211_mgmt *mgmt;
753 struct wlantest_bss *bss;
755 mgmt = (const struct ieee80211_mgmt *) data;
756 fc = le_to_host16(mgmt->frame_control);
757 stype = WLAN_FC_GET_STYPE(fc);
759 if (stype == WLAN_FC_STYPE_ACTION) {
762 if (mgmt->u.action.category == WLAN_ACTION_PUBLIC)
763 return 0; /* Not a robust management frame */
766 bss = bss_get(wt, mgmt->bssid);
768 return 0; /* No key known yet */
770 if (len < 24 + 18 || data[len - 18] != WLAN_EID_MMIE ||
771 data[len - 17] != 16) {
773 if (bss->rsn_capab & WPA_CAPABILITY_MFPC) {
774 wpa_printf(MSG_INFO, "Robust group-addressed "
775 "management frame sent without BIP by "
776 MACSTR, MAC2STR(mgmt->sa));
777 bss->counters[WLANTEST_BSS_COUNTER_MISSING_BIP_MMIE]++;
783 mmie = data + len - 16;
784 keyid = WPA_GET_LE16(mmie);
785 if (keyid & 0xf000) {
786 wpa_printf(MSG_INFO, "MMIE KeyID reserved bits not zero "
787 "(%04x) from " MACSTR, keyid, MAC2STR(mgmt->sa));
790 if (keyid < 4 || keyid > 5) {
791 wpa_printf(MSG_INFO, "Unexpected MMIE KeyID %u from " MACSTR,
792 keyid, MAC2STR(mgmt->sa));
793 bss->counters[WLANTEST_BSS_COUNTER_INVALID_BIP_MMIE]++;
796 wpa_printf(MSG_DEBUG, "MMIE KeyID %u", keyid);
797 wpa_hexdump(MSG_MSGDUMP, "MMIE IPN", mmie + 2, 6);
798 wpa_hexdump(MSG_MSGDUMP, "MMIE MIC", mmie + 8, 8);
800 if (!bss->igtk_set[keyid]) {
801 wpa_printf(MSG_DEBUG, "No IGTK known to validate BIP frame");
805 if (os_memcmp(mmie + 2, bss->ipn[keyid], 6) <= 0) {
806 wpa_printf(MSG_INFO, "BIP replay detected: SA=" MACSTR,
808 wpa_hexdump(MSG_INFO, "RX IPN", mmie + 2, 6);
809 wpa_hexdump(MSG_INFO, "Last RX IPN", bss->ipn[keyid], 6);
812 if (check_mmie_mic(bss->igtk[keyid], data, len) < 0) {
813 wpa_printf(MSG_INFO, "Invalid MMIE MIC in a frame from "
814 MACSTR, MAC2STR(mgmt->sa));
815 bss->counters[WLANTEST_BSS_COUNTER_INVALID_BIP_MMIE]++;
819 wpa_printf(MSG_DEBUG, "Valid MMIE MIC");
820 os_memcpy(bss->ipn[keyid], mmie + 2, 6);
821 bss->counters[WLANTEST_BSS_COUNTER_VALID_BIP_MMIE]++;
823 if (stype == WLAN_FC_STYPE_DEAUTH)
824 bss->counters[WLANTEST_BSS_COUNTER_BIP_DEAUTH]++;
825 else if (stype == WLAN_FC_STYPE_DISASSOC)
826 bss->counters[WLANTEST_BSS_COUNTER_BIP_DISASSOC]++;
832 static u8 * mgmt_ccmp_decrypt(struct wlantest *wt, const u8 *data, size_t len,
835 struct wlantest_bss *bss;
836 struct wlantest_sta *sta;
837 const struct ieee80211_hdr *hdr;
839 u8 *decrypted, *frame = NULL;
842 hdr = (const struct ieee80211_hdr *) data;
843 bss = bss_get(wt, hdr->addr3);
846 if (os_memcmp(hdr->addr1, hdr->addr3, ETH_ALEN) == 0)
847 sta = sta_get(bss, hdr->addr2);
849 sta = sta_get(bss, hdr->addr1);
850 if (sta == NULL || !sta->ptk_set) {
851 wpa_printf(MSG_MSGDUMP, "No PTK known to decrypt the frame");
858 if (!(data[24 + 3] & 0x20)) {
859 wpa_printf(MSG_INFO, "Expected CCMP frame from " MACSTR
860 " did not have ExtIV bit set to 1",
861 MAC2STR(hdr->addr2));
865 if (data[24 + 2] != 0 || (data[24 + 3] & 0x1f) != 0) {
866 wpa_printf(MSG_INFO, "CCMP mgmt frame from " MACSTR " used "
867 "non-zero reserved bit", MAC2STR(hdr->addr2));
870 keyid = data[24 + 3] >> 6;
872 wpa_printf(MSG_INFO, "Unexpected non-zero KeyID %d in "
873 "individually addressed Management frame from "
874 MACSTR, keyid, MAC2STR(hdr->addr2));
877 if (os_memcmp(hdr->addr1, hdr->addr3, ETH_ALEN) == 0)
878 rsc = sta->rsc_tods[16];
880 rsc = sta->rsc_fromds[16];
882 ccmp_get_pn(pn, data + 24);
883 if (os_memcmp(pn, rsc, 6) <= 0) {
884 wpa_printf(MSG_INFO, "CCMP/TKIP replay detected: SA=" MACSTR,
885 MAC2STR(hdr->addr2));
886 wpa_hexdump(MSG_INFO, "RX PN", pn, 6);
887 wpa_hexdump(MSG_INFO, "RSC", rsc, 6);
890 decrypted = ccmp_decrypt(sta->ptk.tk1, hdr, data + 24, len - 24, dlen);
892 os_memcpy(rsc, pn, 6);
893 frame = os_malloc(24 + *dlen);
895 os_memcpy(frame, data, 24);
896 os_memcpy(frame + 24, decrypted, *dlen);
907 static int check_mgmt_ccmp(struct wlantest *wt, const u8 *data, size_t len)
909 const struct ieee80211_mgmt *mgmt;
911 struct wlantest_bss *bss;
912 struct wlantest_sta *sta;
914 mgmt = (const struct ieee80211_mgmt *) data;
915 fc = le_to_host16(mgmt->frame_control);
917 if (WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) {
919 mgmt->u.action.category == WLAN_ACTION_PUBLIC)
920 return 0; /* Not a robust management frame */
923 bss = bss_get(wt, mgmt->bssid);
926 if (os_memcmp(mgmt->da, mgmt->bssid, ETH_ALEN) == 0)
927 sta = sta_get(bss, mgmt->sa);
929 sta = sta_get(bss, mgmt->da);
933 if ((sta->rsn_capab & WPA_CAPABILITY_MFPC) &&
934 (sta->state == STATE3 ||
935 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION)) {
936 wpa_printf(MSG_INFO, "Robust individually-addressed "
937 "management frame sent without CCMP by "
938 MACSTR, MAC2STR(mgmt->sa));
946 void rx_mgmt(struct wlantest *wt, const u8 *data, size_t len)
948 const struct ieee80211_hdr *hdr;
951 u8 *decrypted = NULL;
957 hdr = (const struct ieee80211_hdr *) data;
958 fc = le_to_host16(hdr->frame_control);
960 stype = WLAN_FC_GET_STYPE(fc);
962 if ((hdr->addr1[0] & 0x01) &&
963 (stype == WLAN_FC_STYPE_DEAUTH ||
964 stype == WLAN_FC_STYPE_DISASSOC ||
965 stype == WLAN_FC_STYPE_ACTION)) {
966 if (check_bip(wt, data, len) < 0)
970 wpa_printf((stype == WLAN_FC_STYPE_BEACON ||
971 stype == WLAN_FC_STYPE_PROBE_RESP ||
972 stype == WLAN_FC_STYPE_PROBE_REQ) ?
973 MSG_EXCESSIVE : MSG_MSGDUMP,
974 "MGMT %s%s%s DA=" MACSTR " SA=" MACSTR " BSSID=" MACSTR,
976 fc & WLAN_FC_PWRMGT ? " PwrMgt" : "",
977 fc & WLAN_FC_ISWEP ? " Prot" : "",
978 MAC2STR(hdr->addr1), MAC2STR(hdr->addr2),
979 MAC2STR(hdr->addr3));
981 if ((fc & WLAN_FC_ISWEP) &&
982 !(hdr->addr1[0] & 0x01) &&
983 (stype == WLAN_FC_STYPE_DEAUTH ||
984 stype == WLAN_FC_STYPE_DISASSOC ||
985 stype == WLAN_FC_STYPE_ACTION)) {
986 decrypted = mgmt_ccmp_decrypt(wt, data, len, &dlen);
988 write_pcap_decrypted(wt, decrypted, dlen, NULL, 0);
995 if (!(fc & WLAN_FC_ISWEP) &&
996 !(hdr->addr1[0] & 0x01) &&
997 (stype == WLAN_FC_STYPE_DEAUTH ||
998 stype == WLAN_FC_STYPE_DISASSOC ||
999 stype == WLAN_FC_STYPE_ACTION)) {
1000 if (check_mgmt_ccmp(wt, data, len) < 0)
1005 case WLAN_FC_STYPE_BEACON:
1006 rx_mgmt_beacon(wt, data, len);
1008 case WLAN_FC_STYPE_PROBE_RESP:
1009 rx_mgmt_probe_resp(wt, data, len);
1011 case WLAN_FC_STYPE_AUTH:
1012 rx_mgmt_auth(wt, data, len);
1014 case WLAN_FC_STYPE_DEAUTH:
1015 rx_mgmt_deauth(wt, data, len, valid);
1017 case WLAN_FC_STYPE_ASSOC_REQ:
1018 rx_mgmt_assoc_req(wt, data, len);
1020 case WLAN_FC_STYPE_ASSOC_RESP:
1021 rx_mgmt_assoc_resp(wt, data, len);
1023 case WLAN_FC_STYPE_REASSOC_REQ:
1024 rx_mgmt_reassoc_req(wt, data, len);
1026 case WLAN_FC_STYPE_REASSOC_RESP:
1027 rx_mgmt_reassoc_resp(wt, data, len);
1029 case WLAN_FC_STYPE_DISASSOC:
1030 rx_mgmt_disassoc(wt, data, len, valid);
1032 case WLAN_FC_STYPE_ACTION:
1033 rx_mgmt_action(wt, data, len, valid);
1039 wt->last_mgmt_valid = valid;
1043 static void rx_mgmt_deauth_ack(struct wlantest *wt,
1044 const struct ieee80211_hdr *hdr)
1046 const struct ieee80211_mgmt *mgmt;
1047 struct wlantest_bss *bss;
1048 struct wlantest_sta *sta;
1050 mgmt = (const struct ieee80211_mgmt *) hdr;
1051 bss = bss_get(wt, mgmt->bssid);
1054 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
1055 sta = sta_get(bss, mgmt->da);
1057 sta = sta_get(bss, mgmt->sa);
1061 wpa_printf(MSG_DEBUG, "DEAUTH from " MACSTR " acknowledged by " MACSTR,
1062 MAC2STR(mgmt->sa), MAC2STR(mgmt->da));
1063 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0) {
1065 c = wt->last_mgmt_valid ?
1066 WLANTEST_STA_COUNTER_VALID_DEAUTH_RX_ACK :
1067 WLANTEST_STA_COUNTER_INVALID_DEAUTH_RX_ACK;
1073 static void rx_mgmt_disassoc_ack(struct wlantest *wt,
1074 const struct ieee80211_hdr *hdr)
1076 const struct ieee80211_mgmt *mgmt;
1077 struct wlantest_bss *bss;
1078 struct wlantest_sta *sta;
1080 mgmt = (const struct ieee80211_mgmt *) hdr;
1081 bss = bss_get(wt, mgmt->bssid);
1084 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0)
1085 sta = sta_get(bss, mgmt->da);
1087 sta = sta_get(bss, mgmt->sa);
1091 wpa_printf(MSG_DEBUG, "DISASSOC from " MACSTR " acknowledged by "
1092 MACSTR, MAC2STR(mgmt->sa), MAC2STR(mgmt->da));
1093 if (os_memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN) == 0) {
1095 c = wt->last_mgmt_valid ?
1096 WLANTEST_STA_COUNTER_VALID_DISASSOC_RX_ACK :
1097 WLANTEST_STA_COUNTER_INVALID_DISASSOC_RX_ACK;
1103 void rx_mgmt_ack(struct wlantest *wt, const struct ieee80211_hdr *hdr)
1106 fc = le_to_host16(hdr->frame_control);
1107 stype = WLAN_FC_GET_STYPE(fc);
1109 wpa_printf(MSG_MSGDUMP, "MGMT ACK: stype=%u a1=" MACSTR " a2=" MACSTR
1111 stype, MAC2STR(hdr->addr1), MAC2STR(hdr->addr2),
1112 MAC2STR(hdr->addr3));
1115 case WLAN_FC_STYPE_DEAUTH:
1116 rx_mgmt_deauth_ack(wt, hdr);
1118 case WLAN_FC_STYPE_DISASSOC:
1119 rx_mgmt_disassoc_ack(wt, hdr);