wpa_auth_ft.c revision 1f69aa52ea2e0a73ac502565df8c666ee49cab6a
18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * hostapd - IEEE 802.11r - Fast BSS Transition 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi> 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 58d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This program is free software; you can redistribute it and/or modify 68d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * it under the terms of the GNU General Public License version 2 as 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * published by the Free Software Foundation. 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Alternatively, this software may be distributed under the terms of BSD 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * license. 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * See README and COPYING for more details. 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "utils/includes.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "utils/common.h" 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_defs.h" 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_common.h" 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/aes_wrap.h" 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/random.h" 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "ap_config.h" 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "ieee802_11.h" 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wmm.h" 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa_auth.h" 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa_auth_i.h" 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211R 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_send(struct wpa_authenticator *wpa_auth, const u8 *dst, 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.send_ether == NULL) 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB send to " MACSTR, MAC2STR(dst)); 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.send_ether(wpa_auth->cb.ctx, dst, ETH_P_RRB, 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data, data_len); 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_action_send(struct wpa_authenticator *wpa_auth, 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *dst, const u8 *data, size_t data_len) 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.send_ft_action == NULL) 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.send_ft_action(wpa_auth->cb.ctx, dst, 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data, data_len); 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpa_state_machine * 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtwpa_ft_add_sta(struct wpa_authenticator *wpa_auth, const u8 *sta_addr) 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.add_sta == NULL) 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.add_sta(wpa_auth->cb.ctx, sta_addr); 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_write_mdie(struct wpa_auth_config *conf, u8 *buf, size_t len) 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos = buf; 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 capab; 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 2 + sizeof(struct rsn_mdie)) 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_EID_MOBILITY_DOMAIN; 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = MOBILITY_DOMAIN_ID_LEN + 1; 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, conf->mobility_domain, MOBILITY_DOMAIN_ID_LEN); 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += MOBILITY_DOMAIN_ID_LEN; 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab = 0; 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (conf->ft_over_ds) 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab |= RSN_FT_CAPAB_FT_OVER_DS; 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = capab; 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos - buf; 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_write_ftie(struct wpa_auth_config *conf, const u8 *r0kh_id, 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t r0kh_id_len, 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *anonce, const u8 *snonce, 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf, size_t len, const u8 *subelem, 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t subelem_len) 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos = buf, *ielen; 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *hdr; 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 2 + sizeof(*hdr) + 2 + FT_R1KH_ID_LEN + 2 + r0kh_id_len + 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len) 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_EID_FAST_BSS_TRANSITION; 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = pos++; 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ftie *) pos; 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(hdr, 0, sizeof(*hdr)); 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*hdr); 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->mic_control, 0); 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (anonce) 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(hdr->anonce, anonce, WPA_NONCE_LEN); 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (snonce) 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(hdr->snonce, snonce, WPA_NONCE_LEN); 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Optional Parameters */ 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FTIE_SUBELEM_R1KH_ID; 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FT_R1KH_ID_LEN; 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, conf->r1_key_holder, FT_R1KH_ID_LEN); 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += FT_R1KH_ID_LEN; 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh_id) { 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FTIE_SUBELEM_R0KH_ID; 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = r0kh_id_len; 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, r0kh_id, r0kh_id_len); 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += r0kh_id_len; 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (subelem) { 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, subelem, subelem_len); 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += subelem_len; 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *ielen = pos - buf - 2; 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos - buf; 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_r0_sa { 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *next; 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0[PMK_LEN]; 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0_name[WPA_PMK_NAME_LEN]; 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 spa[ETH_ALEN]; 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */ 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: expiration, identity, radius_class, EAP type, VLAN ID */ 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pmk_r1_pushed; 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_r1_sa { 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *next; 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1[PMK_LEN]; 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1_name[WPA_PMK_NAME_LEN]; 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 spa[ETH_ALEN]; 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */ 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: expiration, identity, radius_class, EAP type, VLAN ID */ 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_cache { 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *pmk_r0; 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *pmk_r1; 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_cache * wpa_ft_pmk_cache_init(void) 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache; 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cache = os_zalloc(sizeof(*cache)); 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return cache; 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_pmk_cache_deinit(struct wpa_ft_pmk_cache *cache) 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0, *r0prev; 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *r1, *r1prev; 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = cache->pmk_r0; 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0) { 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0prev = r0; 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = r0->next; 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(r0prev->pmk_r0, 0, PMK_LEN); 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(r0prev); 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = cache->pmk_r1; 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1) { 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1prev = r1; 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = r1->next; 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(r1prev->pmk_r1, 0, PMK_LEN); 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(r1prev); 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(cache); 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_store_pmk_r0(struct wpa_authenticator *wpa_auth, 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r0, 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pmk_r0_name, int pairwise) 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0; 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: add expiration and limit on number of entries in cache */ 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = os_zalloc(sizeof(*r0)); 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0 == NULL) 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r0->pmk_r0, pmk_r0, PMK_LEN); 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r0->pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN); 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r0->spa, spa, ETH_ALEN); 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0->pairwise = pairwise; 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0->next = cache->pmk_r0; 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cache->pmk_r0 = r0; 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_fetch_pmk_r0(struct wpa_authenticator *wpa_auth, 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r0_name, 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pmk_r0, int *pairwise) 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0; 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = cache->pmk_r0; 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0) { 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0->spa, spa, ETH_ALEN) == 0 && 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(r0->pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN) 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt == 0) { 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pmk_r0, r0->pmk_r0, PMK_LEN); 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pairwise) 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pairwise = r0->pairwise; 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = r0->next; 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_store_pmk_r1(struct wpa_authenticator *wpa_auth, 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r1, 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pmk_r1_name, int pairwise) 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *r1; 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: add expiration and limit on number of entries in cache */ 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = os_zalloc(sizeof(*r1)); 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r1 == NULL) 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r1->pmk_r1, pmk_r1, PMK_LEN); 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r1->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN); 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r1->spa, spa, ETH_ALEN); 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1->pairwise = pairwise; 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1->next = cache->pmk_r1; 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cache->pmk_r1 = r1; 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_fetch_pmk_r1(struct wpa_authenticator *wpa_auth, 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r1_name, 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pmk_r1, int *pairwise) 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *r1; 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = cache->pmk_r1; 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1) { 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r1->spa, spa, ETH_ALEN) == 0 && 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(r1->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN) 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt == 0) { 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pmk_r1, r1->pmk_r1, PMK_LEN); 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pairwise) 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pairwise = r1->pairwise; 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = r1->next; 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_pull_pmk_r1(struct wpa_authenticator *wpa_auth, 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *s1kh_id, const u8 *r0kh_id, 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t r0kh_id_len, const u8 *pmk_r0_name) 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r0kh *r0kh; 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_pull_frame frame, f; 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = wpa_auth->conf.r0kh_list; 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0kh) { 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh->id_len == r0kh_id_len && 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(r0kh->id, r0kh_id, r0kh_id_len) == 0) 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = r0kh->next; 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh == NULL) 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Send PMK-R1 pull request to remote R0KH " 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "address " MACSTR, MAC2STR(r0kh->addr)); 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&frame, 0, sizeof(frame)); 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.packet_type = FT_PACKET_R0KH_R1KH_PULL; 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.data_length = host_to_le16(FT_R0KH_R1KH_PULL_DATA_LEN); 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame.ap_address, wpa_auth->addr, ETH_ALEN); 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_wrap() does not support inplace encryption, so use a temporary 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (random_get_bytes(f.nonce, sizeof(f.nonce))) { 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to get random data for " 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "nonce"); 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN); 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.r1kh_id, wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN); 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.s1kh_id, s1kh_id, ETH_ALEN); 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_wrap(r0kh->key, (FT_R0KH_R1KH_PULL_DATA_LEN + 7) / 8, 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.nonce, frame.nonce) < 0) 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, r0kh->addr, (u8 *) &frame, sizeof(frame)); 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk, 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ptk *ptk, size_t ptk_len) 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0[PMK_LEN], pmk_r0_name[WPA_PMK_NAME_LEN]; 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1[PMK_LEN]; 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ptk_name[WPA_PMK_NAME_LEN]; 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *mdid = sm->wpa_auth->conf.mobility_domain; 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *r0kh = sm->wpa_auth->conf.r0_key_holder; 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t r0kh_len = sm->wpa_auth->conf.r0_key_holder_len; 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *r1kh = sm->wpa_auth->conf.r1_key_holder; 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ssid = sm->wpa_auth->conf.ssid; 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t ssid_len = sm->wpa_auth->conf.ssid_len; 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->xxkey_len == 0) { 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: XXKey not available for key " 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "derivation"); 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r0(sm->xxkey, sm->xxkey_len, ssid, ssid_len, mdid, 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh, r0kh_len, sm->addr, pmk_r0, pmk_r0_name); 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R0", pmk_r0, PMK_LEN); 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR0Name", pmk_r0_name, WPA_PMK_NAME_LEN); 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r0(sm->wpa_auth, sm->addr, pmk_r0, pmk_r0_name, 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise); 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1(pmk_r0, pmk_r0_name, r1kh, sm->addr, 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pmk_r1, sm->pmk_r1_name); 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", pmk_r1, PMK_LEN); 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", sm->pmk_r1_name, 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PMK_NAME_LEN); 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r1(sm->wpa_auth, sm->addr, pmk_r1, sm->pmk_r1_name, 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise); 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr, 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->addr, sm->pmk_r1_name, 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) ptk, ptk_len, ptk_name); 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PTK", (u8 *) ptk, ptk_len); 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN); 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic inline int wpa_auth_get_seqnum(struct wpa_authenticator *wpa_auth, 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *addr, int idx, u8 *seq) 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.get_seqnum == NULL) 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.get_seqnum(wpa_auth->cb.ctx, addr, idx, seq); 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_ft_gtk_subelem(struct wpa_state_machine *sm, size_t *len) 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *subelem; 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_group *gsm = sm->group; 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t subelem_len, pad_len; 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *key; 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t key_len; 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 keybuf[32]; 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_len = gsm->GTK_len; 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_len > sizeof(keybuf)) 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Pad key for AES Key Wrap if it is not multiple of 8 bytes or is less 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * than 16 bytes. 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pad_len = key_len % 8; 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pad_len) 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pad_len = 8 - pad_len; 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_len + pad_len < 16) 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pad_len += 8; 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pad_len) { 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(keybuf, gsm->GTK[gsm->GN - 1], key_len); 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(keybuf + key_len, 0, pad_len); 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt keybuf[key_len] = 0xdd; 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_len += pad_len; 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key = keybuf; 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key = gsm->GTK[gsm->GN - 1]; 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Sub-elem ID[1] | Length[1] | Key Info[2] | Key Length[1] | RSC[8] | 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Key[5..32]. 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len = 13 + key_len + 8; 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = os_zalloc(subelem_len); 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (subelem == NULL) 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem[0] = FTIE_SUBELEM_GTK; 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem[1] = 11 + key_len + 8; 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Key ID in B0-B1 of Key Info */ 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(&subelem[2], gsm->GN & 0x03); 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem[4] = gsm->GTK_len; 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN, subelem + 5); 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_wrap(sm->PTK.kek, key_len / 8, key, subelem + 13)) { 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = subelem_len; 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return subelem; 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_ft_igtk_subelem(struct wpa_state_machine *sm, size_t *len) 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *subelem, *pos; 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_group *gsm = sm->group; 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t subelem_len; 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Sub-elem ID[1] | Length[1] | KeyID[2] | IPN[6] | Key Length[1] | 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Key[16+8] */ 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len = 1 + 1 + 2 + 6 + 1 + WPA_IGTK_LEN + 8; 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = os_zalloc(subelem_len); 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (subelem == NULL) 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = subelem; 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FTIE_SUBELEM_IGTK; 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = subelem_len - 2; 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, gsm->GN_igtk); 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN_igtk, pos); 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 6; 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WPA_IGTK_LEN; 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_wrap(sm->PTK.kek, WPA_IGTK_LEN / 8, 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt gsm->IGTK[gsm->GN_igtk - 4], pos)) { 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = subelem_len; 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return subelem; 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_ft_process_rdie(u8 *pos, u8 *end, u8 id, u8 descr_count, 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies, size_t ies_len) 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ieee802_11_elems parse; 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_rdie *rdie; 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Resource Request: id=%d descr_count=%d", 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt id, descr_count); 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Resource descriptor IE(s)", 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies, ies_len); 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < (int) sizeof(*rdie)) { 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "FT: Not enough room for response RDIE"); 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_EID_RIC_DATA; 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = sizeof(*rdie); 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie = (struct rsn_rdie *) pos; 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->id = id; 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->descr_count = 0; 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = host_to_le16(WLAN_STATUS_SUCCESS); 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*rdie); 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ieee802_11_parse_elems((u8 *) ies, ies_len, &parse, 1) == 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ParseFailed) { 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to parse request IEs"); 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef NEED_AP_MLME 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.wmm_tspec) { 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wmm_tspec_element *tspec; 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res; 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.wmm_tspec_len + 2 < (int) sizeof(*tspec)) { 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short WMM TSPEC IE " 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(%d)", (int) parse.wmm_tspec_len); 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < (int) sizeof(*tspec)) { 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "FT: Not enough room for " 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "response TSPEC"); 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tspec = (struct wmm_tspec_element *) pos; 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(tspec, parse.wmm_tspec - 2, sizeof(*tspec)); 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wmm_process_tspec(tspec); 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: ADDTS processing result: %d", res); 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res == WMM_ADDTS_STATUS_INVALID_PARAMETERS) 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_INVALID_PARAMETERS); 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else if (res == WMM_ADDTS_STATUS_REFUSED) 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_REQUEST_DECLINED); 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else { 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TSPEC accepted; include updated TSPEC in response */ 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->descr_count = 1; 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*tspec); 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* NEED_AP_MLME */ 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No supported resource requested"); 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_ft_process_ric(u8 *pos, u8 *end, const u8 *ric, size_t ric_len) 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *rpos, *start; 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct rsn_rdie *rdie; 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: RIC Request", ric, ric_len); 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos = ric; 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (rpos + sizeof(*rdie) < ric + ric_len) { 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rpos[0] != WLAN_EID_RIC_DATA || rpos[1] < sizeof(*rdie) || 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos + 2 + rpos[1] > ric + ric_len) 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie = (const struct rsn_rdie *) (rpos + 2); 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos += 2 + rpos[1]; 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt start = rpos; 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (rpos + 2 <= ric + ric_len && 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos + 2 + rpos[1] <= ric + ric_len) { 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rpos[0] == WLAN_EID_RIC_DATA) 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos += 2 + rpos[1]; 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_ft_process_rdie(pos, end, rdie->id, 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->descr_count, 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt start, rpos - start); 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtu8 * wpa_sm_write_assoc_resp_ies(struct wpa_state_machine *sm, u8 *pos, 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t max_len, int auth_alg, 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *req_ies, size_t req_ies_len) 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *end, *mdie, *ftie, *rsnie = NULL, *r0kh_id, *subelem = NULL; 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t mdie_len, ftie_len, rsnie_len = 0, r0kh_id_len, subelem_len = 0; 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res; 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_auth_config *conf; 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *_ftie; 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_ies parse; 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *ric_start; 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *anonce, *snonce; 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt conf = &sm->wpa_auth->conf; 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->wpa_key_mgmt != WPA_KEY_MGMT_FT_IEEE8021X && 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_key_mgmt != WPA_KEY_MGMT_FT_PSK) 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = pos + max_len; 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) { 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * RSN (only present if this is a Reassociation Response and 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * part of a fast BSS transition) 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_write_rsn_ie(conf, pos, end - pos, sm->pmk_r1_name); 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res < 0) 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsnie = pos; 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsnie_len = res; 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += res; 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Mobility Domain Information */ 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_write_mdie(conf, pos, end - pos); 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res < 0) 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie = pos; 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie_len = res; 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += res; 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Fast BSS Transition Information */ 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) { 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = wpa_ft_gtk_subelem(sm, &subelem_len); 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id = sm->r0kh_id; 6368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id_len = sm->r0kh_id_len; 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt anonce = sm->ANonce; 6388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt snonce = sm->SNonce; 6398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 6408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->mgmt_frame_prot) { 6418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *igtk; 6428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t igtk_len; 6438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *nbuf; 6448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt igtk = wpa_ft_igtk_subelem(sm, &igtk_len); 6458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (igtk == NULL) { 6468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 6478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nbuf = os_realloc(subelem, subelem_len + igtk_len); 6508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (nbuf == NULL) { 6518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 6528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(igtk); 6538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = nbuf; 6568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(subelem + subelem_len, igtk, igtk_len); 6578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len += igtk_len; 6588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(igtk); 6598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 6618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 6628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id = conf->r0_key_holder; 6638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id_len = conf->r0_key_holder_len; 6648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt anonce = NULL; 6658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt snonce = NULL; 6668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_write_ftie(conf, r0kh_id, r0kh_id_len, anonce, snonce, pos, 6688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end - pos, subelem, subelem_len); 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res < 0) 6718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = pos; 6738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie_len = res; 6748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += res; 6758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(sm->assoc_resp_ftie); 6778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->assoc_resp_ftie = os_malloc(ftie_len); 6788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->assoc_resp_ftie) 6798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->assoc_resp_ftie, ftie, ftie_len); 6808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie = (struct rsn_ftie *) (ftie + 2); 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) 6838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie->mic_control[1] = 3; /* Information element count */ 6848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ric_start = pos; 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_parse_ies(req_ies, req_ies_len, &parse) == 0 && parse.ric) { 6878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_ft_process_ric(pos, end, parse.ric, parse.ric_len); 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie->mic_control[1] += 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ieee802_11_ie_count(ric_start, 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos - ric_start); 6928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ric_start == pos) 6948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ric_start = NULL; 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT && 6978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_mic(sm->PTK.kck, sm->addr, sm->wpa_auth->addr, 6, 6988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie, mdie_len, ftie, ftie_len, 6998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsnie, rsnie_len, 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ric_start, ric_start ? pos - ric_start : 0, 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie->mic) < 0) 7028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to calculate MIC"); 7038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 7058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic inline int wpa_auth_set_key(struct wpa_authenticator *wpa_auth, 7098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int vlan_id, 7108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum wpa_alg alg, const u8 *addr, int idx, 7118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *key, size_t key_len) 7128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.set_key == NULL) 7148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 7158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.set_key(wpa_auth->cb.ctx, vlan_id, alg, addr, idx, 7168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key, key_len); 7178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_install_ptk(struct wpa_state_machine *sm) 7218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum wpa_alg alg; 7238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int klen; 7248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* MLME-SETKEYS.request(PTK) */ 7268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->pairwise == WPA_CIPHER_TKIP) { 7278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt alg = WPA_ALG_TKIP; 7288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt klen = 32; 7298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (sm->pairwise == WPA_CIPHER_CCMP) { 7308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt alg = WPA_ALG_CCMP; 7318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt klen = 16; 7328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 7338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unknown pairwise alg 0x%x - skip " 7348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PTK configuration", sm->pairwise); 7358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* FIX: add STA entry to kernel/driver here? The set_key will fail 7398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * most likely without this.. At the moment, STA entry is added only 7408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * after association has been completed. This function will be called 7418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * again after association to get the PTK configured, but that could be 7428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * optimized by adding the STA entry earlier. 7438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 7448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth_set_key(sm->wpa_auth, 0, alg, sm->addr, 0, 7458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->PTK.tk1, klen)) 7468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* FIX: MLME-SetProtection.Request(TA, Tx_Rx) */ 7498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise_set = TRUE; 7508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u16 wpa_ft_process_auth_req(struct wpa_state_machine *sm, 7548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies, size_t ies_len, 7558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 **resp_ies, size_t *resp_ies_len) 7568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_mdie *mdie; 7588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *ftie; 7598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1[PMK_LEN], pmk_r1_name[WPA_PMK_NAME_LEN]; 7608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ptk_name[WPA_PMK_NAME_LEN]; 7618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_auth_config *conf; 7628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_ies parse; 7638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buflen, ptk_len; 7648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret; 7658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos, *end; 7668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 7678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 7698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies_len = 0; 7708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pmk_r1_name_valid = 0; 7728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt conf = &sm->wpa_auth->conf; 7738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received authentication frame IEs", 7758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies, ies_len); 7768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) { 7788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to parse FT IEs"); 7798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 7808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie = (struct rsn_mdie *) parse.mdie; 7838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mdie == NULL || parse.mdie_len < sizeof(*mdie) || 7848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(mdie->mobility_domain, 7858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.mobility_domain, 7868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MOBILITY_DOMAIN_ID_LEN) != 0) { 7878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid MDIE"); 7888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_MDIE; 7898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct rsn_ftie *) parse.ftie; 7928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ftie == NULL || parse.ftie_len < sizeof(*ftie)) { 7938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid FTIE"); 7948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 7958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->SNonce, ftie->snonce, WPA_NONCE_LEN); 7988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r0kh_id == NULL) { 8008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid FTIE - no R0KH-ID"); 8018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 8028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: STA R0KH-ID", 8058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.r0kh_id, parse.r0kh_id_len); 8068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->r0kh_id, parse.r0kh_id, parse.r0kh_id_len); 8078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->r0kh_id_len = parse.r0kh_id_len; 8088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn_pmkid == NULL) { 8108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No PMKID in RSNIE"); 8118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 8128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Requested PMKR0Name", 8158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.rsn_pmkid, WPA_PMK_NAME_LEN); 8168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1_name(parse.rsn_pmkid, 8178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.r1_key_holder, sm->addr, 8188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pmk_r1_name); 8198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Derived requested PMKR1Name", 8208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pmk_r1_name, WPA_PMK_NAME_LEN); 8218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_fetch_pmk_r1(sm->wpa_auth, sm->addr, pmk_r1_name, pmk_r1, 8238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &pairwise) < 0) { 8248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_pull_pmk_r1(sm->wpa_auth, sm->addr, sm->r0kh_id, 8258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->r0kh_id_len, parse.rsn_pmkid) < 0) { 8268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Did not have matching " 8278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R1 and unknown R0KH-ID"); 8288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 8298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 8328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TODO: Should return "status pending" (and the caller should 8338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * not send out response now). The real response will be sent 8348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * once the response from R0KH is received. 8358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 8368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 8378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: Selected PMK-R1", pmk_r1, PMK_LEN); 8408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pmk_r1_name_valid = 1; 8418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN); 8428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (random_get_bytes(sm->ANonce, WPA_NONCE_LEN)) { 8448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to get random data for " 8458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "ANonce"); 8468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received SNonce", 8508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->SNonce, WPA_NONCE_LEN); 8518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Generated ANonce", 8528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->ANonce, WPA_NONCE_LEN); 8538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ptk_len = pairwise != WPA_CIPHER_CCMP ? 64 : 48; 8558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr, 8568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->addr, pmk_r1_name, 8578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &sm->PTK, ptk_len, ptk_name); 8588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PTK", 8598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &sm->PTK, ptk_len); 8608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN); 8618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise = pairwise; 8638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_install_ptk(sm); 8648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buflen = 2 + sizeof(struct rsn_mdie) + 2 + sizeof(struct rsn_ftie) + 8668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2 + FT_R1KH_ID_LEN + 200; 8678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = os_zalloc(buflen); 8688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (*resp_ies == NULL) { 8698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = *resp_ies; 8738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = *resp_ies + buflen; 8748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_write_rsn_ie(conf, pos, end - pos, parse.rsn_pmkid); 8768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) { 8778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(*resp_ies); 8788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 8798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ret; 8828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_write_mdie(conf, pos, end - pos); 8848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) { 8858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(*resp_ies); 8868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 8878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ret; 8908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_write_ftie(conf, parse.r0kh_id, parse.r0kh_id_len, 8928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->ANonce, sm->SNonce, pos, end - pos, NULL, 0); 8938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) { 8948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(*resp_ies); 8958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 8968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ret; 8998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies_len = pos - *resp_ies; 9018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_SUCCESS; 9038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_process_auth(struct wpa_state_machine *sm, const u8 *bssid, 9078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 auth_transaction, const u8 *ies, size_t ies_len, 9088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt void (*cb)(void *ctx, const u8 *dst, const u8 *bssid, 9098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 auth_transaction, u16 status, 9108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies, size_t ies_len), 9118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt void *ctx) 9128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 9148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *resp_ies; 9158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t resp_ies_len; 9168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) { 9188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received authentication frame, but " 9198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "WPA SM not available"); 9208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received authentication frame: STA=" MACSTR 9248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " BSSID=" MACSTR " transaction=%d", 9258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), MAC2STR(bssid), auth_transaction); 9268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = wpa_ft_process_auth_req(sm, ies, ies_len, &resp_ies, 9278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &resp_ies_len); 9288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: FT authentication response: dst=" MACSTR 9308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " auth_transaction=%d status=%d", 9318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), auth_transaction + 1, status); 9328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Response IEs", resp_ies, resp_ies_len); 9338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cb(ctx, sm->addr, bssid, auth_transaction + 1, status, 9348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp_ies, resp_ies_len); 9358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(resp_ies); 9368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtu16 wpa_ft_validate_reassoc(struct wpa_state_machine *sm, const u8 *ies, 9408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t ies_len) 9418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_ies parse; 9438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_mdie *mdie; 9448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *ftie; 9458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic[16]; 9468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int count; 9478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 9498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Reassoc Req IEs", ies, ies_len); 9528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) { 9548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to parse FT IEs"); 9558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn == NULL) { 9598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No RSNIE in Reassoc Req"); 9608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn_pmkid == NULL) { 9648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No PMKID in RSNIE"); 9658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 9668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(parse.rsn_pmkid, sm->pmk_r1_name, WPA_PMK_NAME_LEN) != 0) 9698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 9708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMKID in Reassoc Req did not match " 9718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "with the PMKR1Name derived from auth request"); 9728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 9738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie = (struct rsn_mdie *) parse.mdie; 9768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mdie == NULL || parse.mdie_len < sizeof(*mdie) || 9778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(mdie->mobility_domain, 9788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.mobility_domain, 9798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MOBILITY_DOMAIN_ID_LEN) != 0) { 9808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid MDIE"); 9818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_MDIE; 9828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct rsn_ftie *) parse.ftie; 9858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ftie == NULL || parse.ftie_len < sizeof(*ftie)) { 9868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid FTIE"); 9878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 9888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(ftie->snonce, sm->SNonce, WPA_NONCE_LEN) != 0) { 9918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: SNonce mismatch in FTIE"); 9928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received SNonce", 9938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->snonce, WPA_NONCE_LEN); 9948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Expected SNonce", 9958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->SNonce, WPA_NONCE_LEN); 9968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 9978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(ftie->anonce, sm->ANonce, WPA_NONCE_LEN) != 0) { 10008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: ANonce mismatch in FTIE"); 10018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received ANonce", 10028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->anonce, WPA_NONCE_LEN); 10038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Expected ANonce", 10048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->ANonce, WPA_NONCE_LEN); 10058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r0kh_id == NULL) { 10108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No R0KH-ID subelem in FTIE"); 10118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r0kh_id_len != sm->r0kh_id_len || 10158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(parse.r0kh_id, sm->r0kh_id, parse.r0kh_id_len) != 0) { 10168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: R0KH-ID in FTIE did not match with " 10178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "the current R0KH-ID"); 10188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: R0KH-ID in FTIE", 10198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.r0kh_id, parse.r0kh_id_len); 10208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: The current R0KH-ID", 10218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->r0kh_id, sm->r0kh_id_len); 10228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r1kh_id == NULL) { 10268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No R1KH-ID subelem in FTIE"); 10278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(parse.r1kh_id, sm->wpa_auth->conf.r1_key_holder, 10318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt FT_R1KH_ID_LEN) != 0) { 10328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unknown R1KH-ID used in " 10338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "ReassocReq"); 10348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: R1KH-ID in FTIE", 10358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.r1kh_id, FT_R1KH_ID_LEN); 10368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Expected R1KH-ID", 10378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN); 10388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn_pmkid == NULL || 10428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(parse.rsn_pmkid, sm->pmk_r1_name, WPA_PMK_NAME_LEN)) { 10438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching PMKR1Name (PMKID) in " 10448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RSNIE (pmkid=%d)", !!parse.rsn_pmkid); 10458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count = 3; 10498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.ric) 10501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt count += ieee802_11_ie_count(parse.ric, parse.ric_len); 10518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ftie->mic_control[1] != count) { 10528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unexpected IE count in MIC " 10538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Control: received %u expected %u", 10548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->mic_control[1], count); 10558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_mic(sm->PTK.kck, sm->addr, sm->wpa_auth->addr, 5, 10598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.mdie - 2, parse.mdie_len + 2, 10608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.ftie - 2, parse.ftie_len + 2, 10618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.rsn - 2, parse.rsn_len + 2, 10628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.ric, parse.ric_len, 10638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mic) < 0) { 10648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to calculate MIC"); 10658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 10668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(mic, ftie->mic, 16) != 0) { 10698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid MIC in FTIE"); 10708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Received MIC", ftie->mic, 16); 10718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Calculated MIC", mic, 16); 10728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 10738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_SUCCESS; 10768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 10778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_ft_action_rx(struct wpa_state_machine *sm, const u8 *data, size_t len) 10808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 10818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *sta_addr, *target_ap; 10828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies; 10838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t ies_len; 10848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action; 10858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_rrb_frame *frame; 10868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 10888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 10918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * data: Category[1] Action[1] STA_Address[6] Target_AP_Address[6] 10928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * FT Request action frame body[variable] 10938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 10948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 14) { 10968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short FT Action frame " 10978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(len=%lu)", (unsigned long) len); 10988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt action = data[1]; 11028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sta_addr = data + 2; 11038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt target_ap = data + 8; 11048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies = data + 14; 11058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies_len = len - 14; 11068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received FT Action frame (STA=" MACSTR 11088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " Target AP=" MACSTR " Action=%d)", 11098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sta_addr), MAC2STR(target_ap), action); 11108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sta_addr, sm->addr, ETH_ALEN) != 0) { 11128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Mismatch in FT Action STA address: " 11138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "STA=" MACSTR " STA-Address=" MACSTR, 11148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), MAC2STR(sta_addr)); 11158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 11198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Do some sanity checking on the target AP address (not own and not 11208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * broadcast. This could be extended to filter based on a list of known 11218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * APs in the MD (if such a list were configured). 11228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 11238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((target_ap[0] & 0x01) || 11248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(target_ap, sm->wpa_auth->addr, ETH_ALEN) == 0) { 11258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid Target AP in FT Action " 11268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "frame"); 11278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Action frame body", ies, ies_len); 11318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* RRB - Forward action frame to the target AP */ 11338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = os_malloc(sizeof(*frame) + len); 11348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 11358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->packet_type = FT_PACKET_REQUEST; 11368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->action_length = host_to_le16(len); 11378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame->ap_address, sm->wpa_auth->addr, ETH_ALEN); 11388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame + 1, data, len); 11398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(sm->wpa_auth, target_ap, (u8 *) frame, 11418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(*frame) + len); 11428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(frame); 11438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 11458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_request(struct wpa_authenticator *wpa_auth, 11498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *current_ap, const u8 *sta_addr, 11508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *body, size_t len) 11518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_state_machine *sm; 11538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 11548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *resp_ies, *pos; 11558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t resp_ies_len, rlen; 11568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_rrb_frame *frame; 11578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm = wpa_ft_add_sta(wpa_auth, sta_addr); 11598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) { 11608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to add new STA based on " 11618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RRB Request"); 11628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: RRB Request Frame body", body, len); 11668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = wpa_ft_process_auth_req(sm, body, len, &resp_ies, 11688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &resp_ies_len); 11698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB authentication response: STA=" MACSTR 11718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " CurrentAP=" MACSTR " status=%d", 11728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), MAC2STR(current_ap), status); 11738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Response IEs", resp_ies, resp_ies_len); 11748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* RRB - Forward action frame response to the Current AP */ 11768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 11788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * data: Category[1] Action[1] STA_Address[6] Target_AP_Address[6] 11798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Status_Code[2] FT Request action frame body[variable] 11808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 11818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rlen = 2 + 2 * ETH_ALEN + 2 + resp_ies_len; 11828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = os_malloc(sizeof(*frame) + rlen); 11848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 11858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->packet_type = FT_PACKET_RESPONSE; 11868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->action_length = host_to_le16(rlen); 11878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame->ap_address, wpa_auth->addr, ETH_ALEN); 11888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (frame + 1); 11898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_ACTION_FT; 11908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 2; /* Action: Response */ 11918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, sta_addr, ETH_ALEN); 11928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 11938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, wpa_auth->addr, ETH_ALEN); 11948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 11958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, status); 11968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 11978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (resp_ies) { 11988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, resp_ies, resp_ies_len); 11998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(resp_ies); 12008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, current_ap, (u8 *) frame, 12038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(*frame) + rlen); 12048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(frame); 12058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 12078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_pull(struct wpa_authenticator *wpa_auth, 12118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *src_addr, 12128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 12138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_pull_frame *frame, f; 12158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r1kh *r1kh; 12168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_resp_frame resp, r; 12178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0[PMK_LEN]; 12188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 12198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 pull"); 12218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data_len < sizeof(*frame)) 12238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = wpa_auth->conf.r1kh_list; 12268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1kh) { 12278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r1kh->addr, src_addr, ETH_ALEN) == 0) 12288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 12298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = r1kh->next; 12308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r1kh == NULL) { 12328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching R1KH address found for " 12338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R1 pull source address " MACSTR, 12348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 12358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = (struct ft_r0kh_r1kh_pull_frame *) data; 12398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_unwrap() does not support inplace decryption, so use a temporary 12408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 12418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_unwrap(r1kh->key, (FT_R0KH_R1KH_PULL_DATA_LEN + 7) / 8, 12428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->nonce, f.nonce) < 0) { 12438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 pull " 12448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "request from " MACSTR, MAC2STR(src_addr)); 12458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - nonce", 12498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.nonce, sizeof(f.nonce)); 12508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - PMKR0Name", 12518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r0_name, WPA_PMK_NAME_LEN); 12528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull - R1KH-ID=" MACSTR "S1KH-ID=" 12538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id)); 12548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&resp, 0, sizeof(resp)); 12568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 12578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp.packet_type = FT_PACKET_R0KH_R1KH_RESP; 12588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp.data_length = host_to_le16(FT_R0KH_R1KH_RESP_DATA_LEN); 12598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(resp.ap_address, wpa_auth->addr, ETH_ALEN); 12608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_wrap() does not support inplace encryption, so use a temporary 12628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 12638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r.nonce, f.nonce, sizeof(f.nonce)); 12648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r.r1kh_id, f.r1kh_id, FT_R1KH_ID_LEN); 12658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r.s1kh_id, f.s1kh_id, ETH_ALEN); 12668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_fetch_pmk_r0(wpa_auth, f.s1kh_id, f.pmk_r0_name, pmk_r0, 12678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &pairwise) < 0) { 12688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching PMKR0Name found for " 12698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R1 pull"); 12708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1(pmk_r0, f.pmk_r0_name, f.r1kh_id, f.s1kh_id, 12748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r.pmk_r1, r.pmk_r1_name); 12758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", r.pmk_r1, PMK_LEN); 12768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", r.pmk_r1_name, 12778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PMK_NAME_LEN); 12788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r.pairwise = host_to_le16(pairwise); 12798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_wrap(r1kh->key, (FT_R0KH_R1KH_RESP_DATA_LEN + 7) / 8, 12818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r.nonce, resp.nonce) < 0) { 12828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(pmk_r0, 0, PMK_LEN); 12838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(pmk_r0, 0, PMK_LEN); 12878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, src_addr, (u8 *) &resp, sizeof(resp)); 12898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 12918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_resp(struct wpa_authenticator *wpa_auth, 12958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *src_addr, 12968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 12978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_resp_frame *frame, f; 12998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r0kh *r0kh; 13008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 13018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 pull response"); 13038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data_len < sizeof(*frame)) 13058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = wpa_auth->conf.r0kh_list; 13088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0kh) { 13098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0kh->addr, src_addr, ETH_ALEN) == 0) 13108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 13118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = r0kh->next; 13128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh == NULL) { 13148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching R0KH address found for " 13158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R0 pull response source address " MACSTR, 13168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 13178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = (struct ft_r0kh_r1kh_resp_frame *) data; 13218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_unwrap() does not support inplace decryption, so use a temporary 13228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 13238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_unwrap(r0kh->key, (FT_R0KH_R1KH_RESP_DATA_LEN + 7) / 8, 13248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->nonce, f.nonce) < 0) { 13258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 pull " 13268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "response from " MACSTR, MAC2STR(src_addr)); 13278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(f.r1kh_id, wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN) 13318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt != 0) { 13328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull response did not use a " 13338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "matching R1KH-ID"); 13348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: verify that <nonce,s1kh_id> matches with a pending request 13388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * and call this requests callback function to finish request 13398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * processing */ 13408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise = le_to_host16(f.pairwise); 13428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - nonce", 13438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.nonce, sizeof(f.nonce)); 13448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull - R1KH-ID=" MACSTR "S1KH-ID=" 13458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR " pairwise=0x%x", 13468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id), pairwise); 13478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1 pull - PMK-R1", 13488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1, PMK_LEN); 13498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - PMKR1Name", 13508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1_name, WPA_PMK_NAME_LEN); 13518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r1(wpa_auth, f.s1kh_id, f.pmk_r1, f.pmk_r1_name, 13538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise); 13548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(f.pmk_r1, 0, PMK_LEN); 13558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 13578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 13588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_push(struct wpa_authenticator *wpa_auth, 13618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *src_addr, 13628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 13638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 13648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_push_frame *frame, f; 13658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r0kh *r0kh; 13668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct os_time now; 13678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_time_t tsend; 13688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 13698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 push"); 13718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data_len < sizeof(*frame)) 13738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = wpa_auth->conf.r0kh_list; 13768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0kh) { 13778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0kh->addr, src_addr, ETH_ALEN) == 0) 13788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 13798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = r0kh->next; 13808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh == NULL) { 13828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching R0KH address found for " 13838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R0 push source address " MACSTR, 13848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 13858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = (struct ft_r0kh_r1kh_push_frame *) data; 13898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_unwrap() does not support inplace decryption, so use a temporary 13908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 13918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_unwrap(r0kh->key, (FT_R0KH_R1KH_PUSH_DATA_LEN + 7) / 8, 13928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->timestamp, f.timestamp) < 0) { 13938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 push from " 13948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(src_addr)); 13958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_get_time(&now); 13998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tsend = WPA_GET_LE32(f.timestamp); 14008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((now.sec > tsend && now.sec - tsend > 60) || 14018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (now.sec < tsend && tsend - now.sec > 60)) { 14028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 push did not have a valid " 14038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "timestamp: sender time %d own time %d\n", 14048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (int) tsend, (int) now.sec); 14058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(f.r1kh_id, wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN) 14098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt != 0) { 14108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 push did not use a matching " 14118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "R1KH-ID (received " MACSTR " own " MACSTR ")", 14128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(f.r1kh_id), 14138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(wpa_auth->conf.r1_key_holder)); 14148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise = le_to_host16(f.pairwise); 14188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 push - R1KH-ID=" MACSTR " S1KH-ID=" 14198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR " pairwise=0x%x", 14208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id), pairwise); 14218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1 push - PMK-R1", 14228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1, PMK_LEN); 14238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 push - PMKR1Name", 14248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1_name, WPA_PMK_NAME_LEN); 14258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r1(wpa_auth, f.s1kh_id, f.pmk_r1, f.pmk_r1_name, 14278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise); 14288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(f.pmk_r1, 0, PMK_LEN); 14298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 14318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 14328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_ft_rrb_rx(struct wpa_authenticator *wpa_auth, const u8 *src_addr, 14358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 14368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 14378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_rrb_frame *frame; 14388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 alen; 14398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos, *end, *start; 14408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action; 14418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *sta_addr, *target_ap_addr; 14428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB received frame from remote AP " MACSTR, 14448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 14458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data_len < sizeof(*frame)) { 14478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short RRB frame (data_len=%lu)", 14488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) data_len); 14498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = data; 14538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = (struct ft_rrb_frame *) pos; 14548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*frame); 14558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt alen = le_to_host16(frame->action_length); 14578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB frame - frame_type=%d packet_type=%d " 14588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "action_length=%d ap_address=" MACSTR, 14598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->frame_type, frame->packet_type, alen, 14608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(frame->ap_address)); 14618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->frame_type != RSN_REMOTE_FRAME_TYPE_FT_RRB) { 14638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Discard frame per IEEE Std 802.11r-2008, 11A.10.3 */ 14648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB discarded frame with " 14658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "unrecognized type %d", frame->frame_type); 14668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (alen > data_len - sizeof(*frame)) { 14708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB frame too short for action " 14718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "frame"); 14728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_R0KH_R1KH_PULL) 14768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_ft_rrb_rx_pull(wpa_auth, src_addr, data, data_len); 14778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_R0KH_R1KH_RESP) 14788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_ft_rrb_rx_resp(wpa_auth, src_addr, data, data_len); 14798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_R0KH_R1KH_PUSH) 14808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_ft_rrb_rx_push(wpa_auth, src_addr, data, data_len); 14818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: RRB - FT Action frame", pos, alen); 14838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (alen < 1 + 1 + 2 * ETH_ALEN) { 14858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short RRB frame (not enough " 14868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "room for Action Frame body); alen=%lu", 14878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) alen); 14888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt start = pos; 14918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = pos + alen; 14928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (*pos != WLAN_ACTION_FT) { 14948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unexpected Action frame category " 14958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "%d", *pos); 14968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos++; 15008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt action = *pos++; 15018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sta_addr = pos; 15028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 15038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt target_ap_addr = pos; 15048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 15058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB Action Frame: action=%d sta_addr=" 15068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR " target_ap_addr=" MACSTR, 15078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt action, MAC2STR(sta_addr), MAC2STR(target_ap_addr)); 15088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_REQUEST) { 15108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: FT Packet Type - Request"); 15118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (action != 1) { 15138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unexpected Action %d in " 15148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RRB Request", action); 15158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(target_ap_addr, wpa_auth->addr, ETH_ALEN) != 0) { 15198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Target AP address in the " 15208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RRB Request does not match with own " 15218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "address"); 15228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_rrb_rx_request(wpa_auth, frame->ap_address, 15268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sta_addr, pos, end - pos) < 0) 15278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (frame->packet_type == FT_PACKET_RESPONSE) { 15298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status_code; 15308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < 2) { 15328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Not enough room for status " 15338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "code in RRB Response"); 15348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status_code = WPA_GET_LE16(pos); 15378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 15388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: FT Packet Type - Response " 15408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(status_code=%d)", status_code); 15418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_action_send(wpa_auth, sta_addr, start, alen) < 0) 15438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 15458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB discarded frame with unknown " 15468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "packet_type %d", frame->packet_type); 15478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 15518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 15528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_ft_generate_pmk_r1(struct wpa_authenticator *wpa_auth, 15558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *pmk_r0, 15568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r1kh *r1kh, 15578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *s1kh_id, int pairwise) 15588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 15598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_push_frame frame, f; 15608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct os_time now; 15618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&frame, 0, sizeof(frame)); 15638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 15648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.packet_type = FT_PACKET_R0KH_R1KH_PUSH; 15658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.data_length = host_to_le16(FT_R0KH_R1KH_PUSH_DATA_LEN); 15668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame.ap_address, wpa_auth->addr, ETH_ALEN); 15678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_wrap() does not support inplace encryption, so use a temporary 15698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 15708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.r1kh_id, r1kh->id, FT_R1KH_ID_LEN); 15718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.s1kh_id, s1kh_id, ETH_ALEN); 15728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.pmk_r0_name, pmk_r0->pmk_r0_name, WPA_PMK_NAME_LEN); 15738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1(pmk_r0->pmk_r0, pmk_r0->pmk_r0_name, r1kh->id, 15748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt s1kh_id, f.pmk_r1, f.pmk_r1_name); 15758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: R1KH-ID " MACSTR, MAC2STR(r1kh->id)); 15768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", f.pmk_r1, PMK_LEN); 15778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", f.pmk_r1_name, 15788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PMK_NAME_LEN); 15798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_get_time(&now); 15808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE32(f.timestamp, now.sec); 15818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pairwise = host_to_le16(pairwise); 15828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_wrap(r1kh->key, (FT_R0KH_R1KH_PUSH_DATA_LEN + 7) / 8, 15838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.timestamp, frame.timestamp) < 0) 15848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 15858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, r1kh->addr, (u8 *) &frame, sizeof(frame)); 15878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 15888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_push_pmk_r1(struct wpa_authenticator *wpa_auth, const u8 *addr) 15918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 15928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0; 15938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r1kh *r1kh; 15948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_auth->conf.pmk_r1_push) 15968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 15978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = wpa_auth->ft_pmk_cache->pmk_r0; 15998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0) { 16008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0->spa, addr, ETH_ALEN) == 0) 16018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 16028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = r0->next; 16038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0 == NULL || r0->pmk_r1_pushed) 16068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 16078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0->pmk_r1_pushed = 1; 16088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Deriving and pushing PMK-R1 keys to R1KHs " 16108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "for STA " MACSTR, MAC2STR(addr)); 16118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = wpa_auth->conf.r1kh_list; 16138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1kh) { 16148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_generate_pmk_r1(wpa_auth, r0, r1kh, addr, r0->pairwise); 16158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = r1kh->next; 16168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 16188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211R */ 1620