2 * hostapd - IEEE 802.11r - Fast BSS Transition
3 * Copyright (c) 2004-2007, 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.
21 #include "ieee802_11.h"
23 #include "wpa_auth_i.h"
24 #include "wpa_auth_ie.h"
27 #ifdef CONFIG_IEEE80211R
29 static int wpa_ft_rrb_send(struct wpa_authenticator *wpa_auth, const u8 *dst,
30 const u8 *data, size_t data_len)
32 if (wpa_auth->cb.send_ether == NULL)
34 return wpa_auth->cb.send_ether(wpa_auth->cb.ctx, dst, ETH_P_RRB,
39 static int wpa_ft_action_send(struct wpa_authenticator *wpa_auth,
40 const u8 *dst, const u8 *data, size_t data_len)
42 if (wpa_auth->cb.send_ft_action == NULL)
44 return wpa_auth->cb.send_ft_action(wpa_auth->cb.ctx, dst,
49 static struct wpa_state_machine *
50 wpa_ft_add_sta(struct wpa_authenticator *wpa_auth, const u8 *sta_addr)
52 if (wpa_auth->cb.add_sta == NULL)
54 return wpa_auth->cb.add_sta(wpa_auth->cb.ctx, sta_addr);
58 int wpa_write_mdie(struct wpa_auth_config *conf, u8 *buf, size_t len)
62 if (len < 2 + sizeof(struct rsn_mdie))
65 *pos++ = WLAN_EID_MOBILITY_DOMAIN;
66 *pos++ = MOBILITY_DOMAIN_ID_LEN + 1;
67 os_memcpy(pos, conf->mobility_domain, MOBILITY_DOMAIN_ID_LEN);
68 pos += MOBILITY_DOMAIN_ID_LEN;
69 capab = RSN_FT_CAPAB_FT_OVER_DS;
76 static int wpa_write_ftie(struct wpa_auth_config *conf, const u8 *r0kh_id,
78 const u8 *anonce, const u8 *snonce,
79 u8 *buf, size_t len, const u8 *subelem,
82 u8 *pos = buf, *ielen;
85 if (len < 2 + sizeof(*hdr) + 2 + FT_R1KH_ID_LEN + 2 + r0kh_id_len +
89 *pos++ = WLAN_EID_FAST_BSS_TRANSITION;
92 hdr = (struct rsn_ftie *) pos;
93 os_memset(hdr, 0, sizeof(*hdr));
95 WPA_PUT_LE16(hdr->mic_control, 0);
97 os_memcpy(hdr->anonce, anonce, WPA_NONCE_LEN);
99 os_memcpy(hdr->snonce, snonce, WPA_NONCE_LEN);
101 /* Optional Parameters */
102 *pos++ = FTIE_SUBELEM_R1KH_ID;
103 *pos++ = FT_R1KH_ID_LEN;
104 os_memcpy(pos, conf->r1_key_holder, FT_R1KH_ID_LEN);
105 pos += FT_R1KH_ID_LEN;
108 *pos++ = FTIE_SUBELEM_R0KH_ID;
109 *pos++ = r0kh_id_len;
110 os_memcpy(pos, r0kh_id, r0kh_id_len);
115 os_memcpy(pos, subelem, subelem_len);
119 *ielen = pos - buf - 2;
125 struct wpa_ft_pmk_r0_sa {
126 struct wpa_ft_pmk_r0_sa *next;
128 u8 pmk_r0_name[WPA_PMK_NAME_LEN];
130 /* TODO: expiration, identity, radius_class, EAP type, VLAN ID */
134 struct wpa_ft_pmk_r1_sa {
135 struct wpa_ft_pmk_r1_sa *next;
137 u8 pmk_r1_name[WPA_PMK_NAME_LEN];
139 /* TODO: expiration, identity, radius_class, EAP type, VLAN ID */
142 struct wpa_ft_pmk_cache {
143 struct wpa_ft_pmk_r0_sa *pmk_r0;
144 struct wpa_ft_pmk_r1_sa *pmk_r1;
147 struct wpa_ft_pmk_cache * wpa_ft_pmk_cache_init(void)
149 struct wpa_ft_pmk_cache *cache;
151 cache = os_zalloc(sizeof(*cache));
157 void wpa_ft_pmk_cache_deinit(struct wpa_ft_pmk_cache *cache)
159 struct wpa_ft_pmk_r0_sa *r0, *r0prev;
160 struct wpa_ft_pmk_r1_sa *r1, *r1prev;
166 os_memset(r0prev->pmk_r0, 0, PMK_LEN);
174 os_memset(r1prev->pmk_r1, 0, PMK_LEN);
182 static int wpa_ft_store_pmk_r0(struct wpa_authenticator *wpa_auth,
183 const u8 *spa, const u8 *pmk_r0,
184 const u8 *pmk_r0_name)
186 struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache;
187 struct wpa_ft_pmk_r0_sa *r0;
189 /* TODO: add expiration and limit on number of entries in cache */
191 r0 = os_zalloc(sizeof(*r0));
195 os_memcpy(r0->pmk_r0, pmk_r0, PMK_LEN);
196 os_memcpy(r0->pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN);
197 os_memcpy(r0->spa, spa, ETH_ALEN);
199 r0->next = cache->pmk_r0;
206 static int wpa_ft_fetch_pmk_r0(struct wpa_authenticator *wpa_auth,
207 const u8 *spa, const u8 *pmk_r0_name,
210 struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache;
211 struct wpa_ft_pmk_r0_sa *r0;
215 if (os_memcmp(r0->spa, spa, ETH_ALEN) == 0 &&
216 os_memcmp(r0->pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN)
218 os_memcpy(pmk_r0, r0->pmk_r0, PMK_LEN);
229 static int wpa_ft_store_pmk_r1(struct wpa_authenticator *wpa_auth,
230 const u8 *spa, const u8 *pmk_r1,
231 const u8 *pmk_r1_name)
233 struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache;
234 struct wpa_ft_pmk_r1_sa *r1;
236 /* TODO: add expiration and limit on number of entries in cache */
238 r1 = os_zalloc(sizeof(*r1));
242 os_memcpy(r1->pmk_r1, pmk_r1, PMK_LEN);
243 os_memcpy(r1->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN);
244 os_memcpy(r1->spa, spa, ETH_ALEN);
246 r1->next = cache->pmk_r1;
253 static int wpa_ft_fetch_pmk_r1(struct wpa_authenticator *wpa_auth,
254 const u8 *spa, const u8 *pmk_r1_name,
257 struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache;
258 struct wpa_ft_pmk_r1_sa *r1;
262 if (os_memcmp(r1->spa, spa, ETH_ALEN) == 0 &&
263 os_memcmp(r1->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN)
265 os_memcpy(pmk_r1, r1->pmk_r1, PMK_LEN);
276 static int wpa_ft_pull_pmk_r1(struct wpa_authenticator *wpa_auth,
277 const u8 *s1kh_id, const u8 *r0kh_id,
278 size_t r0kh_id_len, const u8 *pmk_r0_name)
280 struct ft_remote_r0kh *r0kh;
281 struct ft_r0kh_r1kh_pull_frame frame, f;
283 r0kh = wpa_auth->conf.r0kh_list;
285 if (r0kh->id_len == r0kh_id_len &&
286 os_memcmp(r0kh->id, r0kh_id, r0kh_id_len) == 0)
293 wpa_printf(MSG_DEBUG, "FT: Send PMK-R1 pull request to remote R0KH "
294 "address " MACSTR, MAC2STR(r0kh->addr));
296 os_memset(&frame, 0, sizeof(frame));
297 frame.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB;
298 frame.packet_type = FT_PACKET_R0KH_R1KH_PULL;
299 frame.data_length = host_to_le16(FT_R0KH_R1KH_PULL_DATA_LEN);
300 os_memcpy(frame.ap_address, wpa_auth->addr, ETH_ALEN);
302 /* aes_wrap() does not support inplace encryption, so use a temporary
303 * buffer for the data. */
304 if (os_get_random(f.nonce, sizeof(f.nonce))) {
305 wpa_printf(MSG_DEBUG, "FT: Failed to get random data for "
309 os_memcpy(f.pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN);
310 os_memcpy(f.r1kh_id, wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN);
311 os_memcpy(f.s1kh_id, s1kh_id, ETH_ALEN);
313 if (aes_wrap(r0kh->key, (FT_R0KH_R1KH_PULL_DATA_LEN + 7) / 8,
314 f.nonce, frame.nonce) < 0)
317 wpa_ft_rrb_send(wpa_auth, r0kh->addr, (u8 *) &frame, sizeof(frame));
323 int wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk,
326 u8 pmk_r0[PMK_LEN], pmk_r0_name[WPA_PMK_NAME_LEN];
327 u8 pmk_r1[PMK_LEN], pmk_r1_name[WPA_PMK_NAME_LEN];
328 u8 ptk_name[WPA_PMK_NAME_LEN];
329 const u8 *mdid = sm->wpa_auth->conf.mobility_domain;
330 const u8 *r0kh = sm->wpa_auth->conf.r0_key_holder;
331 size_t r0kh_len = sm->wpa_auth->conf.r0_key_holder_len;
332 const u8 *r1kh = sm->wpa_auth->conf.r1_key_holder;
333 const u8 *ssid = sm->wpa_auth->conf.ssid;
334 size_t ssid_len = sm->wpa_auth->conf.ssid_len;
337 if (sm->xxkey_len == 0) {
338 wpa_printf(MSG_DEBUG, "FT: XXKey not available for key "
343 wpa_derive_pmk_r0(sm->xxkey, sm->xxkey_len, ssid, ssid_len, mdid,
344 r0kh, r0kh_len, sm->addr, pmk_r0, pmk_r0_name);
345 wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R0", pmk_r0, PMK_LEN);
346 wpa_hexdump(MSG_DEBUG, "FT: PMKR0Name", pmk_r0_name, WPA_PMK_NAME_LEN);
347 wpa_ft_store_pmk_r0(sm->wpa_auth, sm->addr, pmk_r0, pmk_r0_name);
349 wpa_derive_pmk_r1(pmk_r0, pmk_r0_name, r1kh, sm->addr,
350 pmk_r1, pmk_r1_name);
351 wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", pmk_r1, PMK_LEN);
352 wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", pmk_r1_name, WPA_PMK_NAME_LEN);
353 wpa_ft_store_pmk_r1(sm->wpa_auth, sm->addr, pmk_r1, pmk_r1_name);
355 wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr,
356 sm->wpa_auth->addr, pmk_r1_name,
357 (u8 *) ptk, sizeof(*ptk), ptk_name);
358 wpa_hexdump_key(MSG_DEBUG, "FT: PTK", (u8 *) ptk, sizeof(*ptk));
359 wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN);
365 static inline int wpa_auth_get_seqnum(struct wpa_authenticator *wpa_auth,
366 const u8 *addr, int idx, u8 *seq)
368 if (wpa_auth->cb.get_seqnum == NULL)
370 return wpa_auth->cb.get_seqnum(wpa_auth->cb.ctx, addr, idx, seq);
374 static u8 * wpa_ft_gtk_subelem(struct wpa_state_machine *sm, size_t *len)
377 struct wpa_group *gsm = sm->group;
378 size_t subelem_len, pad_len;
383 key_len = gsm->GTK_len;
384 if (key_len > sizeof(keybuf))
388 * Pad key for AES Key Wrap if it is not multiple of 8 bytes or is less
391 pad_len = key_len % 8;
393 pad_len = 8 - pad_len;
394 if (key_len + pad_len < 16)
397 os_memcpy(keybuf, gsm->GTK[gsm->GN - 1], key_len);
398 os_memset(keybuf + key_len, 0, pad_len);
399 keybuf[key_len] = 0xdd;
403 key = gsm->GTK[gsm->GN - 1];
406 * Sub-elem ID[1] | Length[1] | Key Info[1] | Key Length[1] | RSC[8] |
409 subelem_len = 12 + key_len + 8;
410 subelem = os_zalloc(subelem_len);
414 subelem[0] = FTIE_SUBELEM_GTK;
415 subelem[1] = 10 + key_len + 8;
416 subelem[2] = gsm->GN & 0x03; /* Key ID in B0-B1 of Key Info */
417 subelem[3] = gsm->GTK_len;
418 wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN, subelem + 4);
419 if (aes_wrap(sm->PTK.kek, key_len / 8, key, subelem + 12)) {
429 u8 * wpa_sm_write_assoc_resp_ies(struct wpa_state_machine *sm, u8 *pos,
430 size_t max_len, int auth_alg)
432 u8 *end, *mdie, *ftie, *rsnie, *r0kh_id, *subelem = NULL;
433 size_t mdie_len, ftie_len, rsnie_len, r0kh_id_len, subelem_len = 0;
435 struct wpa_auth_config *conf;
436 struct rsn_ftie *_ftie;
441 conf = &sm->wpa_auth->conf;
443 if (sm->wpa_key_mgmt != WPA_KEY_MGMT_FT_IEEE8021X &&
444 sm->wpa_key_mgmt != WPA_KEY_MGMT_FT_PSK)
450 res = wpa_write_rsn_ie(conf, pos, end - pos, sm->pmk_r1_name);
457 /* Mobility Domain Information */
458 res = wpa_write_mdie(conf, pos, end - pos);
465 /* Fast BSS Transition Information */
466 if (auth_alg == WLAN_AUTH_FT) {
467 subelem = wpa_ft_gtk_subelem(sm, &subelem_len);
468 r0kh_id = sm->r0kh_id;
469 r0kh_id_len = sm->r0kh_id_len;
471 r0kh_id = conf->r0_key_holder;
472 r0kh_id_len = conf->r0_key_holder_len;
474 res = wpa_write_ftie(conf, r0kh_id, r0kh_id_len, NULL, NULL, pos,
475 end - pos, subelem, subelem_len);
483 _ftie = (struct rsn_ftie *) (ftie + 2);
484 _ftie->mic_control[1] = 3; /* Information element count */
485 if (wpa_ft_mic(sm->PTK.kck, sm->addr, sm->wpa_auth->addr, 6,
486 mdie, mdie_len, ftie, ftie_len,
487 rsnie, rsnie_len, NULL, 0, _ftie->mic) < 0)
488 wpa_printf(MSG_DEBUG, "FT: Failed to calculate MIC");
510 static int wpa_ft_parse_ftie(const u8 *ie, size_t ie_len,
511 struct wpa_ft_ies *parse)
516 parse->ftie_len = ie_len;
518 pos = ie + sizeof(struct rsn_ftie);
521 while (pos + 2 <= end && pos + 2 + pos[1] <= end) {
523 case FTIE_SUBELEM_R1KH_ID:
524 if (pos[1] != FT_R1KH_ID_LEN) {
525 wpa_printf(MSG_DEBUG, "FT: Invalid R1KH-ID "
526 "length in FTIE: %d", pos[1]);
529 parse->r1kh_id = pos + 2;
531 case FTIE_SUBELEM_GTK:
532 parse->gtk = pos + 2;
533 parse->gtk_len = pos[1];
535 case FTIE_SUBELEM_R0KH_ID:
536 if (pos[1] < 1 || pos[1] > FT_R0KH_ID_MAX_LEN) {
537 wpa_printf(MSG_DEBUG, "FT: Invalid R0KH-ID "
538 "length in FTIE: %d", pos[1]);
541 parse->r0kh_id = pos + 2;
542 parse->r0kh_id_len = pos[1];
553 static int wpa_ft_parse_ies(const u8 *ies, size_t ies_len,
554 struct wpa_ft_ies *parse)
557 struct wpa_ie_data data;
560 os_memset(parse, 0, sizeof(*parse));
566 while (pos + 2 <= end && pos + 2 + pos[1] <= end) {
569 parse->rsn = pos + 2;
570 parse->rsn_len = pos[1];
571 ret = wpa_parse_wpa_ie_rsn(parse->rsn - 2,
575 wpa_printf(MSG_DEBUG, "FT: Failed to parse "
579 if (data.num_pmkid == 1 && data.pmkid)
580 parse->rsn_pmkid = data.pmkid;
582 case WLAN_EID_MOBILITY_DOMAIN:
583 parse->mdie = pos + 2;
584 parse->mdie_len = pos[1];
586 case WLAN_EID_FAST_BSS_TRANSITION:
587 if (wpa_ft_parse_ftie(pos + 2, pos[1], parse) < 0)
599 static inline int wpa_auth_set_key(struct wpa_authenticator *wpa_auth,
601 const char *alg, const u8 *addr, int idx,
602 u8 *key, size_t key_len)
604 if (wpa_auth->cb.set_key == NULL)
606 return wpa_auth->cb.set_key(wpa_auth->cb.ctx, vlan_id, alg, addr, idx,
611 static void wpa_ft_install_ptk(struct wpa_state_machine *sm)
616 /* MLME-SETKEYS.request(PTK) */
617 if (sm->pairwise == WPA_CIPHER_TKIP) {
620 } else if (sm->pairwise == WPA_CIPHER_CCMP) {
626 /* FIX: add STA entry to kernel/driver here? The set_key will fail
627 * most likely without this.. At the moment, STA entry is added only
628 * after association has been completed. Alternatively, could
629 * re-configure PTK at that point(?).
631 if (wpa_auth_set_key(sm->wpa_auth, 0, alg, sm->addr, 0,
635 /* FIX: MLME-SetProtection.Request(TA, Tx_Rx) */
636 sm->pairwise_set = TRUE;
640 static u16 wpa_ft_process_auth_req(struct wpa_state_machine *sm,
641 const u8 *ies, size_t ies_len,
642 u8 **resp_ies, size_t *resp_ies_len)
644 struct rsn_mdie *mdie;
645 struct rsn_ftie *ftie;
646 u8 pmk_r1[PMK_LEN], pmk_r1_name[WPA_PMK_NAME_LEN];
647 u8 ptk_name[WPA_PMK_NAME_LEN];
648 struct wpa_auth_config *conf;
649 struct wpa_ft_ies parse;
657 sm->pmk_r1_name_valid = 0;
658 conf = &sm->wpa_auth->conf;
660 wpa_hexdump(MSG_DEBUG, "FT: Received authentication frame IEs",
663 if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) {
664 wpa_printf(MSG_DEBUG, "FT: Failed to parse FT IEs");
665 return WLAN_STATUS_UNSPECIFIED_FAILURE;
668 mdie = (struct rsn_mdie *) parse.mdie;
669 if (mdie == NULL || parse.mdie_len < sizeof(*mdie) ||
670 os_memcmp(mdie->mobility_domain,
671 sm->wpa_auth->conf.mobility_domain,
672 MOBILITY_DOMAIN_ID_LEN) != 0) {
673 wpa_printf(MSG_DEBUG, "FT: Invalid MDIE");
674 return WLAN_STATUS_INVALID_MDIE;
677 ftie = (struct rsn_ftie *) parse.ftie;
678 if (ftie == NULL || parse.ftie_len < sizeof(*ftie)) {
679 wpa_printf(MSG_DEBUG, "FT: Invalid FTIE");
680 return WLAN_STATUS_INVALID_FTIE;
683 os_memcpy(sm->SNonce, ftie->snonce, WPA_NONCE_LEN);
685 if (parse.r0kh_id == NULL) {
686 wpa_printf(MSG_DEBUG, "FT: Invalid FTIE - no R0KH-ID");
687 return WLAN_STATUS_INVALID_FTIE;
690 wpa_hexdump(MSG_DEBUG, "FT: STA R0KH-ID",
691 parse.r0kh_id, parse.r0kh_id_len);
692 os_memcpy(sm->r0kh_id, parse.r0kh_id, parse.r0kh_id_len);
693 sm->r0kh_id_len = parse.r0kh_id_len;
695 if (parse.rsn_pmkid == NULL) {
696 wpa_printf(MSG_DEBUG, "FT: No PMKID in RSNIE");
697 return WLAN_STATUS_INVALID_PMKID;
700 wpa_hexdump(MSG_DEBUG, "FT: Requested PMKR0Name",
701 parse.rsn_pmkid, WPA_PMK_NAME_LEN);
702 wpa_derive_pmk_r1_name(parse.rsn_pmkid,
703 sm->wpa_auth->conf.r1_key_holder, sm->addr,
705 wpa_hexdump(MSG_DEBUG, "FT: Derived requested PMKR1Name",
706 pmk_r1_name, WPA_PMK_NAME_LEN);
708 if (wpa_ft_fetch_pmk_r1(sm->wpa_auth, sm->addr, pmk_r1_name, pmk_r1) <
710 if (wpa_ft_pull_pmk_r1(sm->wpa_auth, sm->addr, sm->r0kh_id,
711 sm->r0kh_id_len, parse.rsn_pmkid) < 0) {
712 wpa_printf(MSG_DEBUG, "FT: Did not have matching "
713 "PMK-R1 and unknown R0KH-ID");
714 return WLAN_STATUS_INVALID_PMKID;
718 * TODO: Should return "status pending" (and the caller should
719 * not send out response now). The real response will be sent
720 * once the response from R0KH is received.
722 return WLAN_STATUS_INVALID_PMKID;
725 wpa_hexdump_key(MSG_DEBUG, "FT: Selected PMK-R1", pmk_r1, PMK_LEN);
726 sm->pmk_r1_name_valid = 1;
727 os_memcpy(sm->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN);
729 if (os_get_random(sm->ANonce, WPA_NONCE_LEN)) {
730 wpa_printf(MSG_DEBUG, "FT: Failed to get random data for "
732 return WLAN_STATUS_UNSPECIFIED_FAILURE;
735 wpa_hexdump(MSG_DEBUG, "FT: Received SNonce",
736 sm->SNonce, WPA_NONCE_LEN);
737 wpa_hexdump(MSG_DEBUG, "FT: Generated ANonce",
738 sm->ANonce, WPA_NONCE_LEN);
740 wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr,
741 sm->wpa_auth->addr, pmk_r1_name,
742 (u8 *) &sm->PTK, sizeof(sm->PTK), ptk_name);
743 wpa_hexdump_key(MSG_DEBUG, "FT: PTK",
744 (u8 *) &sm->PTK, sizeof(sm->PTK));
745 wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN);
747 wpa_ft_install_ptk(sm);
749 buflen = 2 + sizeof(struct rsn_mdie) + 2 + sizeof(struct rsn_ftie) +
750 2 + FT_R1KH_ID_LEN + 200;
751 *resp_ies = os_zalloc(buflen);
752 if (*resp_ies == NULL) {
753 return WLAN_STATUS_UNSPECIFIED_FAILURE;
757 end = *resp_ies + buflen;
759 ret = wpa_write_rsn_ie(conf, pos, end - pos, parse.rsn_pmkid);
763 return WLAN_STATUS_UNSPECIFIED_FAILURE;
767 ret = wpa_write_mdie(conf, pos, end - pos);
771 return WLAN_STATUS_UNSPECIFIED_FAILURE;
775 ret = wpa_write_ftie(conf, parse.r0kh_id, parse.r0kh_id_len,
776 sm->ANonce, sm->SNonce, pos, end - pos, NULL, 0);
780 return WLAN_STATUS_UNSPECIFIED_FAILURE;
784 *resp_ies_len = pos - *resp_ies;
786 return WLAN_STATUS_SUCCESS;
790 void wpa_ft_process_auth(struct wpa_state_machine *sm, const u8 *bssid,
791 u16 auth_transaction, const u8 *ies, size_t ies_len,
792 void (*cb)(void *ctx, const u8 *dst, const u8 *bssid,
793 u16 auth_transaction, u16 status,
794 const u8 *ies, size_t ies_len),
802 wpa_printf(MSG_DEBUG, "FT: Received authentication frame, but "
803 "WPA SM not available");
807 wpa_printf(MSG_DEBUG, "FT: Received authentication frame: STA=" MACSTR
808 " BSSID=" MACSTR " transaction=%d",
809 MAC2STR(sm->addr), MAC2STR(bssid), auth_transaction);
810 status = wpa_ft_process_auth_req(sm, ies, ies_len, &resp_ies,
813 wpa_printf(MSG_DEBUG, "FT: FT authentication response: dst=" MACSTR
814 " auth_transaction=%d status=%d",
815 MAC2STR(sm->addr), auth_transaction + 1, status);
816 wpa_hexdump(MSG_DEBUG, "FT: Response IEs", resp_ies, resp_ies_len);
817 cb(ctx, sm->addr, bssid, auth_transaction + 1, status,
818 resp_ies, resp_ies_len);
823 u16 wpa_ft_validate_reassoc(struct wpa_state_machine *sm, const u8 *ies,
826 struct wpa_ft_ies parse;
827 struct rsn_mdie *mdie;
828 struct rsn_ftie *ftie;
832 return WLAN_STATUS_UNSPECIFIED_FAILURE;
834 wpa_hexdump(MSG_DEBUG, "FT: Reassoc Req IEs", ies, ies_len);
836 if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) {
837 wpa_printf(MSG_DEBUG, "FT: Failed to parse FT IEs");
838 return WLAN_STATUS_UNSPECIFIED_FAILURE;
841 if (parse.rsn == NULL) {
842 wpa_printf(MSG_DEBUG, "FT: No RSNIE in Reassoc Req");
843 return WLAN_STATUS_UNSPECIFIED_FAILURE;
846 if (parse.rsn_pmkid == NULL) {
847 wpa_printf(MSG_DEBUG, "FT: No PMKID in RSNIE");
848 return WLAN_STATUS_INVALID_PMKID;
851 if (os_memcmp(parse.rsn_pmkid, sm->pmk_r1_name, WPA_PMK_NAME_LEN) != 0)
853 wpa_printf(MSG_DEBUG, "FT: PMKID in Reassoc Req did not match "
854 "with the PMKR1Name derived from auth request");
855 return WLAN_STATUS_INVALID_PMKID;
858 mdie = (struct rsn_mdie *) parse.mdie;
859 if (mdie == NULL || parse.mdie_len < sizeof(*mdie) ||
860 os_memcmp(mdie->mobility_domain,
861 sm->wpa_auth->conf.mobility_domain,
862 MOBILITY_DOMAIN_ID_LEN) != 0) {
863 wpa_printf(MSG_DEBUG, "FT: Invalid MDIE");
864 return WLAN_STATUS_INVALID_MDIE;
867 ftie = (struct rsn_ftie *) parse.ftie;
868 if (ftie == NULL || parse.ftie_len < sizeof(*ftie)) {
869 wpa_printf(MSG_DEBUG, "FT: Invalid FTIE");
870 return WLAN_STATUS_INVALID_FTIE;
874 * Assume that MDIE, FTIE, and RSN IE are protected and that there is
875 * no RIC, so total of 3 protected IEs.
877 if (ftie->mic_control[1] != 3) {
878 wpa_printf(MSG_DEBUG, "FT: Unexpected IE count in FTIE (%d)",
879 ftie->mic_control[1]);
880 return WLAN_STATUS_INVALID_FTIE;
883 if (wpa_ft_mic(sm->PTK.kck, sm->addr, sm->wpa_auth->addr, 5,
884 parse.mdie - 2, parse.mdie_len + 2,
885 parse.ftie - 2, parse.ftie_len + 2,
886 parse.rsn - 2, parse.rsn_len + 2, NULL, 0,
888 wpa_printf(MSG_DEBUG, "FT: Failed to calculate MIC");
889 return WLAN_STATUS_UNSPECIFIED_FAILURE;
892 if (os_memcmp(mic, ftie->mic, 16) != 0) {
893 wpa_printf(MSG_DEBUG, "FT: Invalid MIC in FTIE");
894 wpa_hexdump(MSG_MSGDUMP, "FT: Received MIC", ftie->mic, 16);
895 wpa_hexdump(MSG_MSGDUMP, "FT: Calculated MIC", mic, 16);
896 return WLAN_STATUS_INVALID_FTIE;
899 return WLAN_STATUS_SUCCESS;
903 int wpa_ft_action_rx(struct wpa_state_machine *sm, const u8 *data, size_t len)
905 const u8 *sta_addr, *target_ap;
909 struct ft_rrb_frame *frame;
915 * data: Category[1] Action[1] STA_Address[6] Target_AP_Address[6]
916 * FT Request action frame body[variable]
920 wpa_printf(MSG_DEBUG, "FT: Too short FT Action frame "
921 "(len=%lu)", (unsigned long) len);
927 target_ap = data + 8;
931 wpa_printf(MSG_DEBUG, "FT: Received FT Action frame (STA=" MACSTR
932 " Target AP=" MACSTR " Action=%d)",
933 MAC2STR(sta_addr), MAC2STR(target_ap), action);
935 if (os_memcmp(sta_addr, sm->addr, ETH_ALEN) != 0) {
936 wpa_printf(MSG_DEBUG, "FT: Mismatch in FT Action STA address: "
937 "STA=" MACSTR " STA-Address=" MACSTR,
938 MAC2STR(sm->addr), MAC2STR(sta_addr));
943 * Do some sanity checking on the target AP address (not own and not
944 * broadcast. This could be extended to filter based on a list of known
945 * APs in the MD (if such a list were configured).
947 if ((target_ap[0] & 0x01) ||
948 os_memcmp(target_ap, sm->wpa_auth->addr, ETH_ALEN) == 0) {
949 wpa_printf(MSG_DEBUG, "FT: Invalid Target AP in FT Action "
954 wpa_hexdump(MSG_MSGDUMP, "FT: Action frame body", ies, ies_len);
956 /* RRB - Forward action frame to the target AP */
957 frame = os_malloc(sizeof(*frame) + len);
958 frame->frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB;
959 frame->packet_type = FT_PACKET_REQUEST;
960 frame->action_length = host_to_le16(len);
961 os_memcpy(frame->ap_address, sm->wpa_auth->addr, ETH_ALEN);
962 os_memcpy(frame + 1, data, len);
964 wpa_ft_rrb_send(sm->wpa_auth, target_ap, (u8 *) frame,
965 sizeof(*frame) + len);
972 static int wpa_ft_rrb_rx_request(struct wpa_authenticator *wpa_auth,
973 const u8 *current_ap, const u8 *sta_addr,
974 const u8 *body, size_t len)
976 struct wpa_state_machine *sm;
979 size_t resp_ies_len, rlen;
980 struct ft_rrb_frame *frame;
982 sm = wpa_ft_add_sta(wpa_auth, sta_addr);
984 wpa_printf(MSG_DEBUG, "FT: Failed to add new STA based on "
989 wpa_hexdump(MSG_MSGDUMP, "FT: RRB Request Frame body", body, len);
991 status = wpa_ft_process_auth_req(sm, body, len, &resp_ies,
994 wpa_printf(MSG_DEBUG, "FT: RRB authentication response: STA=" MACSTR
995 " CurrentAP=" MACSTR " status=%d",
996 MAC2STR(sm->addr), MAC2STR(current_ap), status);
997 wpa_hexdump(MSG_DEBUG, "FT: Response IEs", resp_ies, resp_ies_len);
999 /* RRB - Forward action frame response to the Current AP */
1002 * data: Category[1] Action[1] STA_Address[6] Target_AP_Address[6]
1003 * Status_Code[2] FT Request action frame body[variable]
1005 rlen = 2 + 2 * ETH_ALEN + 2 + resp_ies_len;
1007 frame = os_malloc(sizeof(*frame) + rlen);
1008 frame->frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB;
1009 frame->packet_type = FT_PACKET_RESPONSE;
1010 frame->action_length = host_to_le16(rlen);
1011 os_memcpy(frame->ap_address, wpa_auth->addr, ETH_ALEN);
1012 pos = (u8 *) (frame + 1);
1013 *pos++ = WLAN_ACTION_FT;
1014 *pos++ = 2; /* Action: Response */
1015 os_memcpy(pos, sta_addr, ETH_ALEN);
1017 os_memcpy(pos, wpa_auth->addr, ETH_ALEN);
1019 WPA_PUT_LE16(pos, status);
1022 os_memcpy(pos, resp_ies, resp_ies_len);
1026 wpa_ft_rrb_send(wpa_auth, current_ap, (u8 *) frame,
1027 sizeof(*frame) + rlen);
1034 static int wpa_ft_rrb_rx_pull(struct wpa_authenticator *wpa_auth,
1036 const u8 *data, size_t data_len)
1038 struct ft_r0kh_r1kh_pull_frame *frame, f;
1039 struct ft_remote_r1kh *r1kh;
1040 struct ft_r0kh_r1kh_resp_frame resp, r;
1043 wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 pull");
1045 if (data_len < sizeof(*frame))
1048 r1kh = wpa_auth->conf.r1kh_list;
1050 if (os_memcmp(r1kh->addr, src_addr, ETH_ALEN) == 0)
1055 wpa_printf(MSG_DEBUG, "FT: No matching R1KH address found for "
1056 "PMK-R1 pull source address " MACSTR,
1061 frame = (struct ft_r0kh_r1kh_pull_frame *) data;
1062 /* aes_unwrap() does not support inplace decryption, so use a temporary
1063 * buffer for the data. */
1064 if (aes_unwrap(r1kh->key, (FT_R0KH_R1KH_PULL_DATA_LEN + 7) / 8,
1065 frame->nonce, f.nonce) < 0) {
1066 wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 pull "
1067 "request from " MACSTR, MAC2STR(src_addr));
1071 wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - nonce",
1072 f.nonce, sizeof(f.nonce));
1073 wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - PMKR0Name",
1074 f.pmk_r0_name, WPA_PMK_NAME_LEN);
1075 wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull - R1KH-ID=" MACSTR "S1KH-ID="
1076 MACSTR, MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id));
1078 os_memset(&resp, 0, sizeof(resp));
1079 resp.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB;
1080 resp.packet_type = FT_PACKET_R0KH_R1KH_RESP;
1081 resp.data_length = host_to_le16(FT_R0KH_R1KH_RESP_DATA_LEN);
1082 os_memcpy(resp.ap_address, wpa_auth->addr, ETH_ALEN);
1084 /* aes_wrap() does not support inplace encryption, so use a temporary
1085 * buffer for the data. */
1086 os_memcpy(r.nonce, f.nonce, sizeof(f.nonce));
1087 os_memcpy(r.r1kh_id, f.r1kh_id, FT_R1KH_ID_LEN);
1088 os_memcpy(r.s1kh_id, f.s1kh_id, ETH_ALEN);
1089 if (wpa_ft_fetch_pmk_r0(wpa_auth, f.s1kh_id, f.pmk_r0_name, pmk_r0) <
1091 wpa_printf(MSG_DEBUG, "FT: No matching PMKR0Name found for "
1096 wpa_derive_pmk_r1(pmk_r0, f.pmk_r0_name, f.r1kh_id, f.s1kh_id,
1097 r.pmk_r1, r.pmk_r1_name);
1098 wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", r.pmk_r1, PMK_LEN);
1099 wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", r.pmk_r1_name,
1102 if (aes_wrap(r1kh->key, (FT_R0KH_R1KH_RESP_DATA_LEN + 7) / 8,
1103 r.nonce, resp.nonce) < 0) {
1104 os_memset(pmk_r0, 0, PMK_LEN);
1108 os_memset(pmk_r0, 0, PMK_LEN);
1110 wpa_ft_rrb_send(wpa_auth, src_addr, (u8 *) &resp, sizeof(resp));
1116 static int wpa_ft_rrb_rx_resp(struct wpa_authenticator *wpa_auth,
1118 const u8 *data, size_t data_len)
1120 struct ft_r0kh_r1kh_resp_frame *frame, f;
1121 struct ft_remote_r0kh *r0kh;
1123 wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 pull response");
1125 if (data_len < sizeof(*frame))
1128 r0kh = wpa_auth->conf.r0kh_list;
1130 if (os_memcmp(r0kh->addr, src_addr, ETH_ALEN) == 0)
1135 wpa_printf(MSG_DEBUG, "FT: No matching R0KH address found for "
1136 "PMK-R0 pull response source address " MACSTR,
1141 frame = (struct ft_r0kh_r1kh_resp_frame *) data;
1142 /* aes_unwrap() does not support inplace decryption, so use a temporary
1143 * buffer for the data. */
1144 if (aes_unwrap(r0kh->key, (FT_R0KH_R1KH_RESP_DATA_LEN + 7) / 8,
1145 frame->nonce, f.nonce) < 0) {
1146 wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 pull "
1147 "response from " MACSTR, MAC2STR(src_addr));
1151 if (os_memcmp(f.r1kh_id, wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN)
1153 wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull response did not use a "
1154 "matching R1KH-ID");
1158 /* TODO: verify that <nonce,s1kh_id> matches with a pending request
1159 * and call this requests callback function to finish request
1162 wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - nonce",
1163 f.nonce, sizeof(f.nonce));
1164 wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull - R1KH-ID=" MACSTR "S1KH-ID="
1165 MACSTR, MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id));
1166 wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1 pull - PMK-R1",
1168 wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - PMKR1Name",
1169 f.pmk_r1_name, WPA_PMK_NAME_LEN);
1171 wpa_ft_store_pmk_r1(wpa_auth, f.s1kh_id, f.pmk_r1, f.pmk_r1_name);
1172 os_memset(f.pmk_r1, 0, PMK_LEN);
1178 static int wpa_ft_rrb_rx_push(struct wpa_authenticator *wpa_auth,
1180 const u8 *data, size_t data_len)
1182 struct ft_r0kh_r1kh_push_frame *frame, f;
1183 struct ft_remote_r0kh *r0kh;
1187 wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 push");
1189 if (data_len < sizeof(*frame))
1192 r0kh = wpa_auth->conf.r0kh_list;
1194 if (os_memcmp(r0kh->addr, src_addr, ETH_ALEN) == 0)
1199 wpa_printf(MSG_DEBUG, "FT: No matching R0KH address found for "
1200 "PMK-R0 push source address " MACSTR,
1205 frame = (struct ft_r0kh_r1kh_push_frame *) data;
1206 /* aes_unwrap() does not support inplace decryption, so use a temporary
1207 * buffer for the data. */
1208 if (aes_unwrap(r0kh->key, (FT_R0KH_R1KH_PUSH_DATA_LEN + 7) / 8,
1209 frame->timestamp, f.timestamp) < 0) {
1210 wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 push from "
1211 MACSTR, MAC2STR(src_addr));
1216 tsend = WPA_GET_LE32(f.timestamp);
1217 if ((now.sec > tsend && now.sec - tsend > 60) ||
1218 (now.sec < tsend && tsend - now.sec > 60)) {
1219 wpa_printf(MSG_DEBUG, "FT: PMK-R1 push did not have a valid "
1220 "timestamp: sender time %d own time %d\n",
1221 (int) tsend, (int) now.sec);
1225 if (os_memcmp(f.r1kh_id, wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN)
1227 wpa_printf(MSG_DEBUG, "FT: PMK-R1 push did not use a matching "
1228 "R1KH-ID (received " MACSTR " own " MACSTR ")",
1230 MAC2STR(wpa_auth->conf.r1_key_holder));
1234 wpa_printf(MSG_DEBUG, "FT: PMK-R1 push - R1KH-ID=" MACSTR " S1KH-ID="
1235 MACSTR, MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id));
1236 wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1 push - PMK-R1",
1238 wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 push - PMKR1Name",
1239 f.pmk_r1_name, WPA_PMK_NAME_LEN);
1241 wpa_ft_store_pmk_r1(wpa_auth, f.s1kh_id, f.pmk_r1, f.pmk_r1_name);
1242 os_memset(f.pmk_r1, 0, PMK_LEN);
1248 int wpa_ft_rrb_rx(struct wpa_authenticator *wpa_auth, const u8 *src_addr,
1249 const u8 *data, size_t data_len)
1251 struct ft_rrb_frame *frame;
1253 const u8 *pos, *end, *start;
1255 const u8 *sta_addr, *target_ap_addr;
1257 wpa_printf(MSG_DEBUG, "FT: RRB received frame from remote AP " MACSTR,
1260 if (data_len < sizeof(*frame)) {
1261 wpa_printf(MSG_DEBUG, "FT: Too short RRB frame (data_len=%lu)",
1262 (unsigned long) data_len);
1267 frame = (struct ft_rrb_frame *) pos;
1268 pos += sizeof(*frame);
1270 alen = le_to_host16(frame->action_length);
1271 wpa_printf(MSG_DEBUG, "FT: RRB frame - frame_type=%d packet_type=%d "
1272 "action_length=%d ap_address=" MACSTR,
1273 frame->frame_type, frame->packet_type, alen,
1274 MAC2STR(frame->ap_address));
1276 if (frame->frame_type != RSN_REMOTE_FRAME_TYPE_FT_RRB) {
1277 /* Discard frame per IEEE 802.11r/D8.0, 10A.10.3 */
1278 wpa_printf(MSG_DEBUG, "FT: RRB discarded frame with "
1279 "unrecognized type %d", frame->frame_type);
1283 if (alen > data_len - sizeof(*frame)) {
1284 wpa_printf(MSG_DEBUG, "FT: RRB frame too short for action "
1289 if (frame->packet_type == FT_PACKET_R0KH_R1KH_PULL)
1290 return wpa_ft_rrb_rx_pull(wpa_auth, src_addr, data, data_len);
1291 if (frame->packet_type == FT_PACKET_R0KH_R1KH_RESP)
1292 return wpa_ft_rrb_rx_resp(wpa_auth, src_addr, data, data_len);
1293 if (frame->packet_type == FT_PACKET_R0KH_R1KH_PUSH)
1294 return wpa_ft_rrb_rx_push(wpa_auth, src_addr, data, data_len);
1296 wpa_hexdump(MSG_MSGDUMP, "FT: RRB - FT Action frame", pos, alen);
1298 if (alen < 1 + 1 + 2 * ETH_ALEN) {
1299 wpa_printf(MSG_DEBUG, "FT: Too short RRB frame (not enough "
1300 "room for Action Frame body); alen=%lu",
1301 (unsigned long) alen);
1307 if (*pos != WLAN_ACTION_FT) {
1308 wpa_printf(MSG_DEBUG, "FT: Unexpected Action frame category "
1317 target_ap_addr = pos;
1319 wpa_printf(MSG_DEBUG, "FT: RRB Action Frame: action=%d sta_addr="
1320 MACSTR " target_ap_addr=" MACSTR,
1321 action, MAC2STR(sta_addr), MAC2STR(target_ap_addr));
1323 if (frame->packet_type == FT_PACKET_REQUEST) {
1324 wpa_printf(MSG_DEBUG, "FT: FT Packet Type - Request");
1327 wpa_printf(MSG_DEBUG, "FT: Unexpected Action %d in "
1328 "RRB Request", action);
1332 if (os_memcmp(target_ap_addr, wpa_auth->addr, ETH_ALEN) != 0) {
1333 wpa_printf(MSG_DEBUG, "FT: Target AP address in the "
1334 "RRB Request does not match with own "
1339 if (wpa_ft_rrb_rx_request(wpa_auth, frame->ap_address,
1340 sta_addr, pos, end - pos) < 0)
1342 } else if (frame->packet_type == FT_PACKET_RESPONSE) {
1345 if (end - pos < 2) {
1346 wpa_printf(MSG_DEBUG, "FT: Not enough room for status "
1347 "code in RRB Response");
1350 status_code = WPA_GET_LE16(pos);
1353 wpa_printf(MSG_DEBUG, "FT: FT Packet Type - Response "
1354 "(status_code=%d)", status_code);
1356 if (wpa_ft_action_send(wpa_auth, sta_addr, start, alen) < 0)
1359 wpa_printf(MSG_DEBUG, "FT: RRB discarded frame with unknown "
1360 "packet_type %d", frame->packet_type);
1368 static void wpa_ft_generate_pmk_r1(struct wpa_authenticator *wpa_auth,
1369 struct wpa_ft_pmk_r0_sa *pmk_r0,
1370 struct ft_remote_r1kh *r1kh,
1373 struct ft_r0kh_r1kh_push_frame frame, f;
1376 os_memset(&frame, 0, sizeof(frame));
1377 frame.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB;
1378 frame.packet_type = FT_PACKET_R0KH_R1KH_PUSH;
1379 frame.data_length = host_to_le16(FT_R0KH_R1KH_PUSH_DATA_LEN);
1380 os_memcpy(frame.ap_address, wpa_auth->addr, ETH_ALEN);
1382 /* aes_wrap() does not support inplace encryption, so use a temporary
1383 * buffer for the data. */
1384 os_memcpy(f.r1kh_id, r1kh->id, FT_R1KH_ID_LEN);
1385 os_memcpy(f.s1kh_id, s1kh_id, ETH_ALEN);
1386 os_memcpy(f.pmk_r0_name, pmk_r0->pmk_r0_name, WPA_PMK_NAME_LEN);
1387 wpa_derive_pmk_r1(pmk_r0->pmk_r0, pmk_r0->pmk_r0_name, r1kh->id,
1388 s1kh_id, f.pmk_r1, f.pmk_r1_name);
1389 wpa_printf(MSG_DEBUG, "FT: R1KH-ID " MACSTR, MAC2STR(r1kh->id));
1390 wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", f.pmk_r1, PMK_LEN);
1391 wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", f.pmk_r1_name,
1394 WPA_PUT_LE32(f.timestamp, now.sec);
1395 if (aes_wrap(r1kh->key, (FT_R0KH_R1KH_PUSH_DATA_LEN + 7) / 8,
1396 f.timestamp, frame.timestamp) < 0)
1399 wpa_ft_rrb_send(wpa_auth, r1kh->addr, (u8 *) &frame, sizeof(frame));
1403 void wpa_ft_push_pmk_r1(struct wpa_authenticator *wpa_auth, const u8 *addr)
1405 struct wpa_ft_pmk_r0_sa *r0;
1406 struct ft_remote_r1kh *r1kh;
1408 if (!wpa_auth->conf.pmk_r1_push)
1411 r0 = wpa_auth->ft_pmk_cache->pmk_r0;
1413 if (os_memcmp(r0->spa, addr, ETH_ALEN) == 0)
1418 if (r0 == NULL || r0->pmk_r1_pushed)
1420 r0->pmk_r1_pushed = 1;
1422 wpa_printf(MSG_DEBUG, "FT: Deriving and pushing PMK-R1 keys to R1KHs "
1423 "for STA " MACSTR, MAC2STR(addr));
1425 r1kh = wpa_auth->conf.r1kh_list;
1427 wpa_ft_generate_pmk_r1(wpa_auth, r0, r1kh, addr);
1432 #endif /* CONFIG_IEEE80211R */