wpa_auth_ft.c revision c5ec7f57ead87efa365800228aa0b09a12d9e6c4
18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * hostapd - IEEE 802.11r - Fast BSS Transition 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2004-2009, Jouni Malinen <j@w1.fi> 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * This software may be distributed under the terms of the BSD license. 6c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * See README for more details. 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "utils/includes.h" 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "utils/common.h" 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_defs.h" 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_common.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/aes_wrap.h" 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/random.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "ap_config.h" 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "ieee802_11.h" 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wmm.h" 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa_auth.h" 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa_auth_i.h" 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211R 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_send(struct wpa_authenticator *wpa_auth, const u8 *dst, 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.send_ether == NULL) 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB send to " MACSTR, MAC2STR(dst)); 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.send_ether(wpa_auth->cb.ctx, dst, ETH_P_RRB, 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data, data_len); 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_action_send(struct wpa_authenticator *wpa_auth, 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *dst, const u8 *data, size_t data_len) 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.send_ft_action == NULL) 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.send_ft_action(wpa_auth->cb.ctx, dst, 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data, data_len); 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpa_state_machine * 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtwpa_ft_add_sta(struct wpa_authenticator *wpa_auth, const u8 *sta_addr) 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.add_sta == NULL) 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.add_sta(wpa_auth->cb.ctx, sta_addr); 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_write_mdie(struct wpa_auth_config *conf, u8 *buf, size_t len) 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos = buf; 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 capab; 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 2 + sizeof(struct rsn_mdie)) 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_EID_MOBILITY_DOMAIN; 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = MOBILITY_DOMAIN_ID_LEN + 1; 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, conf->mobility_domain, MOBILITY_DOMAIN_ID_LEN); 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += MOBILITY_DOMAIN_ID_LEN; 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab = 0; 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (conf->ft_over_ds) 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab |= RSN_FT_CAPAB_FT_OVER_DS; 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = capab; 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos - buf; 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_write_ftie(struct wpa_auth_config *conf, const u8 *r0kh_id, 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t r0kh_id_len, 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *anonce, const u8 *snonce, 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf, size_t len, const u8 *subelem, 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t subelem_len) 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos = buf, *ielen; 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *hdr; 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 2 + sizeof(*hdr) + 2 + FT_R1KH_ID_LEN + 2 + r0kh_id_len + 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len) 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_EID_FAST_BSS_TRANSITION; 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = pos++; 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ftie *) pos; 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(hdr, 0, sizeof(*hdr)); 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*hdr); 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->mic_control, 0); 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (anonce) 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(hdr->anonce, anonce, WPA_NONCE_LEN); 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (snonce) 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(hdr->snonce, snonce, WPA_NONCE_LEN); 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Optional Parameters */ 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FTIE_SUBELEM_R1KH_ID; 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FT_R1KH_ID_LEN; 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, conf->r1_key_holder, FT_R1KH_ID_LEN); 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += FT_R1KH_ID_LEN; 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh_id) { 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FTIE_SUBELEM_R0KH_ID; 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = r0kh_id_len; 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, r0kh_id, r0kh_id_len); 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += r0kh_id_len; 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (subelem) { 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, subelem, subelem_len); 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += subelem_len; 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *ielen = pos - buf - 2; 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos - buf; 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_r0_sa { 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *next; 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0[PMK_LEN]; 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0_name[WPA_PMK_NAME_LEN]; 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 spa[ETH_ALEN]; 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */ 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: expiration, identity, radius_class, EAP type, VLAN ID */ 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pmk_r1_pushed; 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_r1_sa { 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *next; 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1[PMK_LEN]; 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1_name[WPA_PMK_NAME_LEN]; 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 spa[ETH_ALEN]; 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */ 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: expiration, identity, radius_class, EAP type, VLAN ID */ 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_cache { 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *pmk_r0; 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *pmk_r1; 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_cache * wpa_ft_pmk_cache_init(void) 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache; 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cache = os_zalloc(sizeof(*cache)); 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return cache; 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_pmk_cache_deinit(struct wpa_ft_pmk_cache *cache) 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0, *r0prev; 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *r1, *r1prev; 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = cache->pmk_r0; 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0) { 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0prev = r0; 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = r0->next; 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(r0prev->pmk_r0, 0, PMK_LEN); 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(r0prev); 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = cache->pmk_r1; 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1) { 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1prev = r1; 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = r1->next; 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(r1prev->pmk_r1, 0, PMK_LEN); 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(r1prev); 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(cache); 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_store_pmk_r0(struct wpa_authenticator *wpa_auth, 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r0, 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pmk_r0_name, int pairwise) 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0; 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: add expiration and limit on number of entries in cache */ 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = os_zalloc(sizeof(*r0)); 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0 == NULL) 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r0->pmk_r0, pmk_r0, PMK_LEN); 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r0->pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN); 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r0->spa, spa, ETH_ALEN); 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0->pairwise = pairwise; 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0->next = cache->pmk_r0; 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cache->pmk_r0 = r0; 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_fetch_pmk_r0(struct wpa_authenticator *wpa_auth, 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r0_name, 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pmk_r0, int *pairwise) 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0; 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = cache->pmk_r0; 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0) { 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0->spa, spa, ETH_ALEN) == 0 && 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(r0->pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN) 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt == 0) { 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pmk_r0, r0->pmk_r0, PMK_LEN); 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pairwise) 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pairwise = r0->pairwise; 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = r0->next; 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_store_pmk_r1(struct wpa_authenticator *wpa_auth, 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r1, 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pmk_r1_name, int pairwise) 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *r1; 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: add expiration and limit on number of entries in cache */ 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = os_zalloc(sizeof(*r1)); 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r1 == NULL) 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r1->pmk_r1, pmk_r1, PMK_LEN); 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r1->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN); 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r1->spa, spa, ETH_ALEN); 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1->pairwise = pairwise; 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1->next = cache->pmk_r1; 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cache->pmk_r1 = r1; 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_fetch_pmk_r1(struct wpa_authenticator *wpa_auth, 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r1_name, 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pmk_r1, int *pairwise) 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *r1; 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = cache->pmk_r1; 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1) { 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r1->spa, spa, ETH_ALEN) == 0 && 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(r1->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN) 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt == 0) { 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pmk_r1, r1->pmk_r1, PMK_LEN); 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pairwise) 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pairwise = r1->pairwise; 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = r1->next; 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_pull_pmk_r1(struct wpa_authenticator *wpa_auth, 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *s1kh_id, const u8 *r0kh_id, 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t r0kh_id_len, const u8 *pmk_r0_name) 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r0kh *r0kh; 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_pull_frame frame, f; 2898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = wpa_auth->conf.r0kh_list; 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0kh) { 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh->id_len == r0kh_id_len && 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(r0kh->id, r0kh_id, r0kh_id_len) == 0) 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = r0kh->next; 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh == NULL) 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Send PMK-R1 pull request to remote R0KH " 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "address " MACSTR, MAC2STR(r0kh->addr)); 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&frame, 0, sizeof(frame)); 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.packet_type = FT_PACKET_R0KH_R1KH_PULL; 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.data_length = host_to_le16(FT_R0KH_R1KH_PULL_DATA_LEN); 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame.ap_address, wpa_auth->addr, ETH_ALEN); 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_wrap() does not support inplace encryption, so use a temporary 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (random_get_bytes(f.nonce, sizeof(f.nonce))) { 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to get random data for " 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "nonce"); 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN); 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.r1kh_id, wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN); 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.s1kh_id, s1kh_id, ETH_ALEN); 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_wrap(r0kh->key, (FT_R0KH_R1KH_PULL_DATA_LEN + 7) / 8, 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.nonce, frame.nonce) < 0) 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, r0kh->addr, (u8 *) &frame, sizeof(frame)); 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk, 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ptk *ptk, size_t ptk_len) 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0[PMK_LEN], pmk_r0_name[WPA_PMK_NAME_LEN]; 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1[PMK_LEN]; 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ptk_name[WPA_PMK_NAME_LEN]; 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *mdid = sm->wpa_auth->conf.mobility_domain; 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *r0kh = sm->wpa_auth->conf.r0_key_holder; 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t r0kh_len = sm->wpa_auth->conf.r0_key_holder_len; 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *r1kh = sm->wpa_auth->conf.r1_key_holder; 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ssid = sm->wpa_auth->conf.ssid; 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t ssid_len = sm->wpa_auth->conf.ssid_len; 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->xxkey_len == 0) { 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: XXKey not available for key " 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "derivation"); 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r0(sm->xxkey, sm->xxkey_len, ssid, ssid_len, mdid, 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh, r0kh_len, sm->addr, pmk_r0, pmk_r0_name); 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R0", pmk_r0, PMK_LEN); 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR0Name", pmk_r0_name, WPA_PMK_NAME_LEN); 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r0(sm->wpa_auth, sm->addr, pmk_r0, pmk_r0_name, 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise); 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1(pmk_r0, pmk_r0_name, r1kh, sm->addr, 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pmk_r1, sm->pmk_r1_name); 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", pmk_r1, PMK_LEN); 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", sm->pmk_r1_name, 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PMK_NAME_LEN); 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r1(sm->wpa_auth, sm->addr, pmk_r1, sm->pmk_r1_name, 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise); 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr, 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->addr, sm->pmk_r1_name, 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) ptk, ptk_len, ptk_name); 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PTK", (u8 *) ptk, ptk_len); 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN); 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic inline int wpa_auth_get_seqnum(struct wpa_authenticator *wpa_auth, 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *addr, int idx, u8 *seq) 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.get_seqnum == NULL) 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.get_seqnum(wpa_auth->cb.ctx, addr, idx, seq); 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_ft_gtk_subelem(struct wpa_state_machine *sm, size_t *len) 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *subelem; 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_group *gsm = sm->group; 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t subelem_len, pad_len; 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *key; 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t key_len; 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 keybuf[32]; 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_len = gsm->GTK_len; 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_len > sizeof(keybuf)) 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Pad key for AES Key Wrap if it is not multiple of 8 bytes or is less 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * than 16 bytes. 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pad_len = key_len % 8; 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pad_len) 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pad_len = 8 - pad_len; 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_len + pad_len < 16) 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pad_len += 8; 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pad_len) { 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(keybuf, gsm->GTK[gsm->GN - 1], key_len); 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(keybuf + key_len, 0, pad_len); 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt keybuf[key_len] = 0xdd; 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_len += pad_len; 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key = keybuf; 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key = gsm->GTK[gsm->GN - 1]; 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Sub-elem ID[1] | Length[1] | Key Info[2] | Key Length[1] | RSC[8] | 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Key[5..32]. 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len = 13 + key_len + 8; 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = os_zalloc(subelem_len); 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (subelem == NULL) 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem[0] = FTIE_SUBELEM_GTK; 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem[1] = 11 + key_len + 8; 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Key ID in B0-B1 of Key Info */ 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(&subelem[2], gsm->GN & 0x03); 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem[4] = gsm->GTK_len; 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN, subelem + 5); 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_wrap(sm->PTK.kek, key_len / 8, key, subelem + 13)) { 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = subelem_len; 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return subelem; 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_ft_igtk_subelem(struct wpa_state_machine *sm, size_t *len) 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *subelem, *pos; 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_group *gsm = sm->group; 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t subelem_len; 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Sub-elem ID[1] | Length[1] | KeyID[2] | IPN[6] | Key Length[1] | 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Key[16+8] */ 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len = 1 + 1 + 2 + 6 + 1 + WPA_IGTK_LEN + 8; 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = os_zalloc(subelem_len); 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (subelem == NULL) 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = subelem; 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FTIE_SUBELEM_IGTK; 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = subelem_len - 2; 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, gsm->GN_igtk); 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN_igtk, pos); 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 6; 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WPA_IGTK_LEN; 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_wrap(sm->PTK.kek, WPA_IGTK_LEN / 8, 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt gsm->IGTK[gsm->GN_igtk - 4], pos)) { 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = subelem_len; 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return subelem; 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_ft_process_rdie(u8 *pos, u8 *end, u8 id, u8 descr_count, 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies, size_t ies_len) 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ieee802_11_elems parse; 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_rdie *rdie; 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Resource Request: id=%d descr_count=%d", 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt id, descr_count); 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Resource descriptor IE(s)", 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies, ies_len); 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < (int) sizeof(*rdie)) { 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "FT: Not enough room for response RDIE"); 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_EID_RIC_DATA; 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = sizeof(*rdie); 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie = (struct rsn_rdie *) pos; 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->id = id; 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->descr_count = 0; 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = host_to_le16(WLAN_STATUS_SUCCESS); 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*rdie); 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ieee802_11_parse_elems((u8 *) ies, ies_len, &parse, 1) == 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ParseFailed) { 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to parse request IEs"); 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef NEED_AP_MLME 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.wmm_tspec) { 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wmm_tspec_element *tspec; 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res; 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.wmm_tspec_len + 2 < (int) sizeof(*tspec)) { 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short WMM TSPEC IE " 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(%d)", (int) parse.wmm_tspec_len); 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < (int) sizeof(*tspec)) { 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "FT: Not enough room for " 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "response TSPEC"); 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tspec = (struct wmm_tspec_element *) pos; 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(tspec, parse.wmm_tspec - 2, sizeof(*tspec)); 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wmm_process_tspec(tspec); 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: ADDTS processing result: %d", res); 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res == WMM_ADDTS_STATUS_INVALID_PARAMETERS) 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_INVALID_PARAMETERS); 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else if (res == WMM_ADDTS_STATUS_REFUSED) 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_REQUEST_DECLINED); 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else { 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TSPEC accepted; include updated TSPEC in response */ 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->descr_count = 1; 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*tspec); 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* NEED_AP_MLME */ 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No supported resource requested"); 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_ft_process_ric(u8 *pos, u8 *end, const u8 *ric, size_t ric_len) 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *rpos, *start; 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct rsn_rdie *rdie; 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: RIC Request", ric, ric_len); 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos = ric; 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (rpos + sizeof(*rdie) < ric + ric_len) { 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rpos[0] != WLAN_EID_RIC_DATA || rpos[1] < sizeof(*rdie) || 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos + 2 + rpos[1] > ric + ric_len) 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie = (const struct rsn_rdie *) (rpos + 2); 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos += 2 + rpos[1]; 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt start = rpos; 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (rpos + 2 <= ric + ric_len && 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos + 2 + rpos[1] <= ric + ric_len) { 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rpos[0] == WLAN_EID_RIC_DATA) 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos += 2 + rpos[1]; 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_ft_process_rdie(pos, end, rdie->id, 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->descr_count, 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt start, rpos - start); 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtu8 * wpa_sm_write_assoc_resp_ies(struct wpa_state_machine *sm, u8 *pos, 5828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t max_len, int auth_alg, 5838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *req_ies, size_t req_ies_len) 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *end, *mdie, *ftie, *rsnie = NULL, *r0kh_id, *subelem = NULL; 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t mdie_len, ftie_len, rsnie_len = 0, r0kh_id_len, subelem_len = 0; 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res; 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_auth_config *conf; 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *_ftie; 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_ies parse; 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *ric_start; 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *anonce, *snonce; 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt conf = &sm->wpa_auth->conf; 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->wpa_key_mgmt != WPA_KEY_MGMT_FT_IEEE8021X && 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_key_mgmt != WPA_KEY_MGMT_FT_PSK) 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = pos + max_len; 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) { 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * RSN (only present if this is a Reassociation Response and 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * part of a fast BSS transition) 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_write_rsn_ie(conf, pos, end - pos, sm->pmk_r1_name); 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res < 0) 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsnie = pos; 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsnie_len = res; 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += res; 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Mobility Domain Information */ 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_write_mdie(conf, pos, end - pos); 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res < 0) 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie = pos; 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie_len = res; 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += res; 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Fast BSS Transition Information */ 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) { 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = wpa_ft_gtk_subelem(sm, &subelem_len); 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id = sm->r0kh_id; 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id_len = sm->r0kh_id_len; 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt anonce = sm->ANonce; 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt snonce = sm->SNonce; 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->mgmt_frame_prot) { 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *igtk; 6368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t igtk_len; 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *nbuf; 6388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt igtk = wpa_ft_igtk_subelem(sm, &igtk_len); 6398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (igtk == NULL) { 6408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 6418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nbuf = os_realloc(subelem, subelem_len + igtk_len); 6448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (nbuf == NULL) { 6458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 6468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(igtk); 6478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = nbuf; 6508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(subelem + subelem_len, igtk, igtk_len); 6518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len += igtk_len; 6528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(igtk); 6538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 6558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 6568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id = conf->r0_key_holder; 6578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id_len = conf->r0_key_holder_len; 6588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt anonce = NULL; 6598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt snonce = NULL; 6608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_write_ftie(conf, r0kh_id, r0kh_id_len, anonce, snonce, pos, 6628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end - pos, subelem, subelem_len); 6638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 6648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res < 0) 6658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = pos; 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie_len = res; 6688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += res; 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(sm->assoc_resp_ftie); 6718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->assoc_resp_ftie = os_malloc(ftie_len); 6728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->assoc_resp_ftie) 6738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->assoc_resp_ftie, ftie, ftie_len); 6748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie = (struct rsn_ftie *) (ftie + 2); 6768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) 6778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie->mic_control[1] = 3; /* Information element count */ 6788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ric_start = pos; 6808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_parse_ies(req_ies, req_ies_len, &parse) == 0 && parse.ric) { 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_ft_process_ric(pos, end, parse.ric, parse.ric_len); 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) 6838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie->mic_control[1] += 6848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ieee802_11_ie_count(ric_start, 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos - ric_start); 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ric_start == pos) 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ric_start = NULL; 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT && 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_mic(sm->PTK.kck, sm->addr, sm->wpa_auth->addr, 6, 6928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie, mdie_len, ftie, ftie_len, 6938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsnie, rsnie_len, 6948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ric_start, ric_start ? pos - ric_start : 0, 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie->mic) < 0) 6968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to calculate MIC"); 6978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic inline int wpa_auth_set_key(struct wpa_authenticator *wpa_auth, 7038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int vlan_id, 7048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum wpa_alg alg, const u8 *addr, int idx, 7058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *key, size_t key_len) 7068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.set_key == NULL) 7088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 7098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.set_key(wpa_auth->cb.ctx, vlan_id, alg, addr, idx, 7108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key, key_len); 7118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_install_ptk(struct wpa_state_machine *sm) 7158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum wpa_alg alg; 7178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int klen; 7188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* MLME-SETKEYS.request(PTK) */ 7208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->pairwise == WPA_CIPHER_TKIP) { 7218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt alg = WPA_ALG_TKIP; 7228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt klen = 32; 7238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (sm->pairwise == WPA_CIPHER_CCMP) { 7248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt alg = WPA_ALG_CCMP; 7258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt klen = 16; 7268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 7278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unknown pairwise alg 0x%x - skip " 7288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PTK configuration", sm->pairwise); 7298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* FIX: add STA entry to kernel/driver here? The set_key will fail 7338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * most likely without this.. At the moment, STA entry is added only 7348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * after association has been completed. This function will be called 7358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * again after association to get the PTK configured, but that could be 7368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * optimized by adding the STA entry earlier. 7378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 7388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth_set_key(sm->wpa_auth, 0, alg, sm->addr, 0, 7398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->PTK.tk1, klen)) 7408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* FIX: MLME-SetProtection.Request(TA, Tx_Rx) */ 7438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise_set = TRUE; 7448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u16 wpa_ft_process_auth_req(struct wpa_state_machine *sm, 7488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies, size_t ies_len, 7498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 **resp_ies, size_t *resp_ies_len) 7508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_mdie *mdie; 7528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *ftie; 7538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1[PMK_LEN], pmk_r1_name[WPA_PMK_NAME_LEN]; 7548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ptk_name[WPA_PMK_NAME_LEN]; 7558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_auth_config *conf; 7568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_ies parse; 7578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buflen, ptk_len; 7588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret; 7598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos, *end; 7608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 7618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 7638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies_len = 0; 7648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pmk_r1_name_valid = 0; 7668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt conf = &sm->wpa_auth->conf; 7678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received authentication frame IEs", 7698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies, ies_len); 7708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) { 7728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to parse FT IEs"); 7738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 7748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie = (struct rsn_mdie *) parse.mdie; 7778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mdie == NULL || parse.mdie_len < sizeof(*mdie) || 7788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(mdie->mobility_domain, 7798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.mobility_domain, 7808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MOBILITY_DOMAIN_ID_LEN) != 0) { 7818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid MDIE"); 7828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_MDIE; 7838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct rsn_ftie *) parse.ftie; 7868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ftie == NULL || parse.ftie_len < sizeof(*ftie)) { 7878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid FTIE"); 7888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 7898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->SNonce, ftie->snonce, WPA_NONCE_LEN); 7928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r0kh_id == NULL) { 7948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid FTIE - no R0KH-ID"); 7958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 7968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: STA R0KH-ID", 7998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.r0kh_id, parse.r0kh_id_len); 8008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->r0kh_id, parse.r0kh_id, parse.r0kh_id_len); 8018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->r0kh_id_len = parse.r0kh_id_len; 8028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn_pmkid == NULL) { 8048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No PMKID in RSNIE"); 8058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 8068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Requested PMKR0Name", 8098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.rsn_pmkid, WPA_PMK_NAME_LEN); 8108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1_name(parse.rsn_pmkid, 8118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.r1_key_holder, sm->addr, 8128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pmk_r1_name); 8138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Derived requested PMKR1Name", 8148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pmk_r1_name, WPA_PMK_NAME_LEN); 8158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_fetch_pmk_r1(sm->wpa_auth, sm->addr, pmk_r1_name, pmk_r1, 8178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &pairwise) < 0) { 8188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_pull_pmk_r1(sm->wpa_auth, sm->addr, sm->r0kh_id, 8198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->r0kh_id_len, parse.rsn_pmkid) < 0) { 8208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Did not have matching " 8218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R1 and unknown R0KH-ID"); 8228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 8238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 8268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TODO: Should return "status pending" (and the caller should 8278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * not send out response now). The real response will be sent 8288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * once the response from R0KH is received. 8298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 8308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 8318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: Selected PMK-R1", pmk_r1, PMK_LEN); 8348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pmk_r1_name_valid = 1; 8358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN); 8368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (random_get_bytes(sm->ANonce, WPA_NONCE_LEN)) { 8388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to get random data for " 8398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "ANonce"); 8408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received SNonce", 8448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->SNonce, WPA_NONCE_LEN); 8458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Generated ANonce", 8468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->ANonce, WPA_NONCE_LEN); 8478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ptk_len = pairwise != WPA_CIPHER_CCMP ? 64 : 48; 8498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr, 8508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->addr, pmk_r1_name, 8518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &sm->PTK, ptk_len, ptk_name); 8528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PTK", 8538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &sm->PTK, ptk_len); 8548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN); 8558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise = pairwise; 8578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_install_ptk(sm); 8588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buflen = 2 + sizeof(struct rsn_mdie) + 2 + sizeof(struct rsn_ftie) + 8608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2 + FT_R1KH_ID_LEN + 200; 8618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = os_zalloc(buflen); 8628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (*resp_ies == NULL) { 8638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = *resp_ies; 8678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = *resp_ies + buflen; 8688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_write_rsn_ie(conf, pos, end - pos, parse.rsn_pmkid); 8708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) { 8718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(*resp_ies); 8728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 8738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ret; 8768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_write_mdie(conf, pos, end - pos); 8788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) { 8798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(*resp_ies); 8808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 8818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ret; 8848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_write_ftie(conf, parse.r0kh_id, parse.r0kh_id_len, 8868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->ANonce, sm->SNonce, pos, end - pos, NULL, 0); 8878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) { 8888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(*resp_ies); 8898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 8908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ret; 8938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies_len = pos - *resp_ies; 8958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_SUCCESS; 8978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 8988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_process_auth(struct wpa_state_machine *sm, const u8 *bssid, 9018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 auth_transaction, const u8 *ies, size_t ies_len, 9028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt void (*cb)(void *ctx, const u8 *dst, const u8 *bssid, 9038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 auth_transaction, u16 status, 9048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies, size_t ies_len), 9058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt void *ctx) 9068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 9088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *resp_ies; 9098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t resp_ies_len; 9108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) { 9128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received authentication frame, but " 9138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "WPA SM not available"); 9148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received authentication frame: STA=" MACSTR 9188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " BSSID=" MACSTR " transaction=%d", 9198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), MAC2STR(bssid), auth_transaction); 9208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = wpa_ft_process_auth_req(sm, ies, ies_len, &resp_ies, 9218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &resp_ies_len); 9228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: FT authentication response: dst=" MACSTR 9248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " auth_transaction=%d status=%d", 9258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), auth_transaction + 1, status); 9268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Response IEs", resp_ies, resp_ies_len); 9278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cb(ctx, sm->addr, bssid, auth_transaction + 1, status, 9288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp_ies, resp_ies_len); 9298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(resp_ies); 9308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtu16 wpa_ft_validate_reassoc(struct wpa_state_machine *sm, const u8 *ies, 9348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t ies_len) 9358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_ies parse; 9378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_mdie *mdie; 9388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *ftie; 9398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic[16]; 9408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int count; 9418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 9438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Reassoc Req IEs", ies, ies_len); 9468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) { 9488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to parse FT IEs"); 9498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn == NULL) { 9538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No RSNIE in Reassoc Req"); 9548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn_pmkid == NULL) { 9588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No PMKID in RSNIE"); 9598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 9608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(parse.rsn_pmkid, sm->pmk_r1_name, WPA_PMK_NAME_LEN) != 0) 9638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt { 9648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMKID in Reassoc Req did not match " 9658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "with the PMKR1Name derived from auth request"); 9668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 9678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie = (struct rsn_mdie *) parse.mdie; 9708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mdie == NULL || parse.mdie_len < sizeof(*mdie) || 9718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(mdie->mobility_domain, 9728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.mobility_domain, 9738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MOBILITY_DOMAIN_ID_LEN) != 0) { 9748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid MDIE"); 9758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_MDIE; 9768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct rsn_ftie *) parse.ftie; 9798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ftie == NULL || parse.ftie_len < sizeof(*ftie)) { 9808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid FTIE"); 9818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 9828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(ftie->snonce, sm->SNonce, WPA_NONCE_LEN) != 0) { 9858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: SNonce mismatch in FTIE"); 9868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received SNonce", 9878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->snonce, WPA_NONCE_LEN); 9888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Expected SNonce", 9898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->SNonce, WPA_NONCE_LEN); 9908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 9918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(ftie->anonce, sm->ANonce, WPA_NONCE_LEN) != 0) { 9948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: ANonce mismatch in FTIE"); 9958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received ANonce", 9968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->anonce, WPA_NONCE_LEN); 9978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Expected ANonce", 9988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->ANonce, WPA_NONCE_LEN); 9998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r0kh_id == NULL) { 10048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No R0KH-ID subelem in FTIE"); 10058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r0kh_id_len != sm->r0kh_id_len || 10098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(parse.r0kh_id, sm->r0kh_id, parse.r0kh_id_len) != 0) { 10108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: R0KH-ID in FTIE did not match with " 10118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "the current R0KH-ID"); 10128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: R0KH-ID in FTIE", 10138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.r0kh_id, parse.r0kh_id_len); 10148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: The current R0KH-ID", 10158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->r0kh_id, sm->r0kh_id_len); 10168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r1kh_id == NULL) { 10208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No R1KH-ID subelem in FTIE"); 10218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(parse.r1kh_id, sm->wpa_auth->conf.r1_key_holder, 10258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt FT_R1KH_ID_LEN) != 0) { 10268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unknown R1KH-ID used in " 10278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "ReassocReq"); 10288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: R1KH-ID in FTIE", 10298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.r1kh_id, FT_R1KH_ID_LEN); 10308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Expected R1KH-ID", 10318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN); 10328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn_pmkid == NULL || 10368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(parse.rsn_pmkid, sm->pmk_r1_name, WPA_PMK_NAME_LEN)) { 10378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching PMKR1Name (PMKID) in " 10388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RSNIE (pmkid=%d)", !!parse.rsn_pmkid); 10398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count = 3; 10438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.ric) 10441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt count += ieee802_11_ie_count(parse.ric, parse.ric_len); 10458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ftie->mic_control[1] != count) { 10468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unexpected IE count in MIC " 10478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Control: received %u expected %u", 10488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->mic_control[1], count); 10498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_mic(sm->PTK.kck, sm->addr, sm->wpa_auth->addr, 5, 10538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.mdie - 2, parse.mdie_len + 2, 10548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.ftie - 2, parse.ftie_len + 2, 10558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.rsn - 2, parse.rsn_len + 2, 10568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.ric, parse.ric_len, 10578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mic) < 0) { 10588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to calculate MIC"); 10598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 10608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(mic, ftie->mic, 16) != 0) { 10638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid MIC in FTIE"); 10648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Received MIC", ftie->mic, 16); 10658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Calculated MIC", mic, 16); 10668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 10678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_SUCCESS; 10708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 10718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_ft_action_rx(struct wpa_state_machine *sm, const u8 *data, size_t len) 10748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 10758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *sta_addr, *target_ap; 10768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies; 10778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t ies_len; 10788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action; 10798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_rrb_frame *frame; 10808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 10828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 10858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * data: Category[1] Action[1] STA_Address[6] Target_AP_Address[6] 10868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * FT Request action frame body[variable] 10878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 10888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 14) { 10908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short FT Action frame " 10918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(len=%lu)", (unsigned long) len); 10928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt action = data[1]; 10968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sta_addr = data + 2; 10978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt target_ap = data + 8; 10988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies = data + 14; 10998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies_len = len - 14; 11008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received FT Action frame (STA=" MACSTR 11028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " Target AP=" MACSTR " Action=%d)", 11038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sta_addr), MAC2STR(target_ap), action); 11048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sta_addr, sm->addr, ETH_ALEN) != 0) { 11068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Mismatch in FT Action STA address: " 11078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "STA=" MACSTR " STA-Address=" MACSTR, 11088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), MAC2STR(sta_addr)); 11098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 11138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Do some sanity checking on the target AP address (not own and not 11148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * broadcast. This could be extended to filter based on a list of known 11158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * APs in the MD (if such a list were configured). 11168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 11178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((target_ap[0] & 0x01) || 11188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(target_ap, sm->wpa_auth->addr, ETH_ALEN) == 0) { 11198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid Target AP in FT Action " 11208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "frame"); 11218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Action frame body", ies, ies_len); 11258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* RRB - Forward action frame to the target AP */ 11278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = os_malloc(sizeof(*frame) + len); 11288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 11298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->packet_type = FT_PACKET_REQUEST; 11308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->action_length = host_to_le16(len); 11318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame->ap_address, sm->wpa_auth->addr, ETH_ALEN); 11328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame + 1, data, len); 11338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(sm->wpa_auth, target_ap, (u8 *) frame, 11358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(*frame) + len); 11368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(frame); 11378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 11398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_request(struct wpa_authenticator *wpa_auth, 11438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *current_ap, const u8 *sta_addr, 11448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *body, size_t len) 11458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_state_machine *sm; 11478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 11488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *resp_ies, *pos; 11498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t resp_ies_len, rlen; 11508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_rrb_frame *frame; 11518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm = wpa_ft_add_sta(wpa_auth, sta_addr); 11538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) { 11548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to add new STA based on " 11558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RRB Request"); 11568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: RRB Request Frame body", body, len); 11608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = wpa_ft_process_auth_req(sm, body, len, &resp_ies, 11628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &resp_ies_len); 11638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB authentication response: STA=" MACSTR 11658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " CurrentAP=" MACSTR " status=%d", 11668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), MAC2STR(current_ap), status); 11678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Response IEs", resp_ies, resp_ies_len); 11688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* RRB - Forward action frame response to the Current AP */ 11708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 11728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * data: Category[1] Action[1] STA_Address[6] Target_AP_Address[6] 11738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Status_Code[2] FT Request action frame body[variable] 11748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 11758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rlen = 2 + 2 * ETH_ALEN + 2 + resp_ies_len; 11768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = os_malloc(sizeof(*frame) + rlen); 11788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 11798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->packet_type = FT_PACKET_RESPONSE; 11808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->action_length = host_to_le16(rlen); 11818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame->ap_address, wpa_auth->addr, ETH_ALEN); 11828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (frame + 1); 11838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_ACTION_FT; 11848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 2; /* Action: Response */ 11858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, sta_addr, ETH_ALEN); 11868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 11878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, wpa_auth->addr, ETH_ALEN); 11888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 11898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, status); 11908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 11918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (resp_ies) { 11928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, resp_ies, resp_ies_len); 11938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(resp_ies); 11948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, current_ap, (u8 *) frame, 11978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(*frame) + rlen); 11988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(frame); 11998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 12018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_pull(struct wpa_authenticator *wpa_auth, 12058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *src_addr, 12068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 12078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_pull_frame *frame, f; 12098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r1kh *r1kh; 12108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_resp_frame resp, r; 12118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0[PMK_LEN]; 12128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 12138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 pull"); 12158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data_len < sizeof(*frame)) 12178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = wpa_auth->conf.r1kh_list; 12208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1kh) { 12218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r1kh->addr, src_addr, ETH_ALEN) == 0) 12228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 12238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = r1kh->next; 12248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r1kh == NULL) { 12268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching R1KH address found for " 12278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R1 pull source address " MACSTR, 12288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 12298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = (struct ft_r0kh_r1kh_pull_frame *) data; 12338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_unwrap() does not support inplace decryption, so use a temporary 12348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 12358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_unwrap(r1kh->key, (FT_R0KH_R1KH_PULL_DATA_LEN + 7) / 8, 12368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->nonce, f.nonce) < 0) { 12378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 pull " 12388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "request from " MACSTR, MAC2STR(src_addr)); 12398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - nonce", 12438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.nonce, sizeof(f.nonce)); 12448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - PMKR0Name", 12458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r0_name, WPA_PMK_NAME_LEN); 12468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull - R1KH-ID=" MACSTR "S1KH-ID=" 12478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id)); 12488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&resp, 0, sizeof(resp)); 12508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 12518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp.packet_type = FT_PACKET_R0KH_R1KH_RESP; 12528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp.data_length = host_to_le16(FT_R0KH_R1KH_RESP_DATA_LEN); 12538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(resp.ap_address, wpa_auth->addr, ETH_ALEN); 12548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_wrap() does not support inplace encryption, so use a temporary 12568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 12578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r.nonce, f.nonce, sizeof(f.nonce)); 12588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r.r1kh_id, f.r1kh_id, FT_R1KH_ID_LEN); 12598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r.s1kh_id, f.s1kh_id, ETH_ALEN); 12608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_fetch_pmk_r0(wpa_auth, f.s1kh_id, f.pmk_r0_name, pmk_r0, 12618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &pairwise) < 0) { 12628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching PMKR0Name found for " 12638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R1 pull"); 12648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1(pmk_r0, f.pmk_r0_name, f.r1kh_id, f.s1kh_id, 12688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r.pmk_r1, r.pmk_r1_name); 12698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", r.pmk_r1, PMK_LEN); 12708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", r.pmk_r1_name, 12718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PMK_NAME_LEN); 12728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r.pairwise = host_to_le16(pairwise); 12738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_wrap(r1kh->key, (FT_R0KH_R1KH_RESP_DATA_LEN + 7) / 8, 12758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r.nonce, resp.nonce) < 0) { 12768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(pmk_r0, 0, PMK_LEN); 12778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(pmk_r0, 0, PMK_LEN); 12818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, src_addr, (u8 *) &resp, sizeof(resp)); 12838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 12858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_resp(struct wpa_authenticator *wpa_auth, 12898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *src_addr, 12908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 12918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_resp_frame *frame, f; 12938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r0kh *r0kh; 12948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 12958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 pull response"); 12978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data_len < sizeof(*frame)) 12998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = wpa_auth->conf.r0kh_list; 13028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0kh) { 13038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0kh->addr, src_addr, ETH_ALEN) == 0) 13048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 13058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = r0kh->next; 13068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh == NULL) { 13088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching R0KH address found for " 13098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R0 pull response source address " MACSTR, 13108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 13118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = (struct ft_r0kh_r1kh_resp_frame *) data; 13158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_unwrap() does not support inplace decryption, so use a temporary 13168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 13178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_unwrap(r0kh->key, (FT_R0KH_R1KH_RESP_DATA_LEN + 7) / 8, 13188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->nonce, f.nonce) < 0) { 13198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 pull " 13208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "response from " MACSTR, MAC2STR(src_addr)); 13218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(f.r1kh_id, wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN) 13258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt != 0) { 13268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull response did not use a " 13278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "matching R1KH-ID"); 13288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: verify that <nonce,s1kh_id> matches with a pending request 13328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * and call this requests callback function to finish request 13338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * processing */ 13348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise = le_to_host16(f.pairwise); 13368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - nonce", 13378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.nonce, sizeof(f.nonce)); 13388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull - R1KH-ID=" MACSTR "S1KH-ID=" 13398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR " pairwise=0x%x", 13408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id), pairwise); 13418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1 pull - PMK-R1", 13428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1, PMK_LEN); 13438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - PMKR1Name", 13448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1_name, WPA_PMK_NAME_LEN); 13458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r1(wpa_auth, f.s1kh_id, f.pmk_r1, f.pmk_r1_name, 13478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise); 13488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(f.pmk_r1, 0, PMK_LEN); 13498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 13518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 13528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_push(struct wpa_authenticator *wpa_auth, 13558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *src_addr, 13568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 13578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 13588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_push_frame *frame, f; 13598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r0kh *r0kh; 13608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct os_time now; 13618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_time_t tsend; 13628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 13638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 push"); 13658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data_len < sizeof(*frame)) 13678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = wpa_auth->conf.r0kh_list; 13708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0kh) { 13718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0kh->addr, src_addr, ETH_ALEN) == 0) 13728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 13738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = r0kh->next; 13748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh == NULL) { 13768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching R0KH address found for " 13778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R0 push source address " MACSTR, 13788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 13798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = (struct ft_r0kh_r1kh_push_frame *) data; 13838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_unwrap() does not support inplace decryption, so use a temporary 13848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 13858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_unwrap(r0kh->key, (FT_R0KH_R1KH_PUSH_DATA_LEN + 7) / 8, 13868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->timestamp, f.timestamp) < 0) { 13878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 push from " 13888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(src_addr)); 13898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_get_time(&now); 13938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tsend = WPA_GET_LE32(f.timestamp); 13948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((now.sec > tsend && now.sec - tsend > 60) || 13958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (now.sec < tsend && tsend - now.sec > 60)) { 13968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 push did not have a valid " 13978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "timestamp: sender time %d own time %d\n", 13988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (int) tsend, (int) now.sec); 13998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(f.r1kh_id, wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN) 14038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt != 0) { 14048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 push did not use a matching " 14058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "R1KH-ID (received " MACSTR " own " MACSTR ")", 14068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(f.r1kh_id), 14078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(wpa_auth->conf.r1_key_holder)); 14088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise = le_to_host16(f.pairwise); 14128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 push - R1KH-ID=" MACSTR " S1KH-ID=" 14138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR " pairwise=0x%x", 14148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id), pairwise); 14158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1 push - PMK-R1", 14168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1, PMK_LEN); 14178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 push - PMKR1Name", 14188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1_name, WPA_PMK_NAME_LEN); 14198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r1(wpa_auth, f.s1kh_id, f.pmk_r1, f.pmk_r1_name, 14218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise); 14228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(f.pmk_r1, 0, PMK_LEN); 14238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 14258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 14268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_ft_rrb_rx(struct wpa_authenticator *wpa_auth, const u8 *src_addr, 14298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 14308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 14318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_rrb_frame *frame; 14328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 alen; 14338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos, *end, *start; 14348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action; 14358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *sta_addr, *target_ap_addr; 14368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB received frame from remote AP " MACSTR, 14388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 14398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data_len < sizeof(*frame)) { 14418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short RRB frame (data_len=%lu)", 14428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) data_len); 14438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = data; 14478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = (struct ft_rrb_frame *) pos; 14488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*frame); 14498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt alen = le_to_host16(frame->action_length); 14518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB frame - frame_type=%d packet_type=%d " 14528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "action_length=%d ap_address=" MACSTR, 14538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->frame_type, frame->packet_type, alen, 14548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(frame->ap_address)); 14558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->frame_type != RSN_REMOTE_FRAME_TYPE_FT_RRB) { 14578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Discard frame per IEEE Std 802.11r-2008, 11A.10.3 */ 14588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB discarded frame with " 14598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "unrecognized type %d", frame->frame_type); 14608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (alen > data_len - sizeof(*frame)) { 14648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB frame too short for action " 14658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "frame"); 14668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_R0KH_R1KH_PULL) 14708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_ft_rrb_rx_pull(wpa_auth, src_addr, data, data_len); 14718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_R0KH_R1KH_RESP) 14728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_ft_rrb_rx_resp(wpa_auth, src_addr, data, data_len); 14738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_R0KH_R1KH_PUSH) 14748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_ft_rrb_rx_push(wpa_auth, src_addr, data, data_len); 14758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: RRB - FT Action frame", pos, alen); 14778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (alen < 1 + 1 + 2 * ETH_ALEN) { 14798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short RRB frame (not enough " 14808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "room for Action Frame body); alen=%lu", 14818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) alen); 14828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt start = pos; 14858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = pos + alen; 14868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (*pos != WLAN_ACTION_FT) { 14888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unexpected Action frame category " 14898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "%d", *pos); 14908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos++; 14948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt action = *pos++; 14958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sta_addr = pos; 14968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 14978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt target_ap_addr = pos; 14988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 14998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB Action Frame: action=%d sta_addr=" 15008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR " target_ap_addr=" MACSTR, 15018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt action, MAC2STR(sta_addr), MAC2STR(target_ap_addr)); 15028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_REQUEST) { 15048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: FT Packet Type - Request"); 15058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (action != 1) { 15078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unexpected Action %d in " 15088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RRB Request", action); 15098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(target_ap_addr, wpa_auth->addr, ETH_ALEN) != 0) { 15138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Target AP address in the " 15148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RRB Request does not match with own " 15158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "address"); 15168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_rrb_rx_request(wpa_auth, frame->ap_address, 15208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sta_addr, pos, end - pos) < 0) 15218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (frame->packet_type == FT_PACKET_RESPONSE) { 15238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status_code; 15248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < 2) { 15268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Not enough room for status " 15278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "code in RRB Response"); 15288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status_code = WPA_GET_LE16(pos); 15318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 15328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: FT Packet Type - Response " 15348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(status_code=%d)", status_code); 15358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_action_send(wpa_auth, sta_addr, start, alen) < 0) 15378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 15398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB discarded frame with unknown " 15408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "packet_type %d", frame->packet_type); 15418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 15458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 15468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_ft_generate_pmk_r1(struct wpa_authenticator *wpa_auth, 15498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *pmk_r0, 15508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r1kh *r1kh, 15518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *s1kh_id, int pairwise) 15528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 15538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_push_frame frame, f; 15548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct os_time now; 15558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&frame, 0, sizeof(frame)); 15578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 15588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.packet_type = FT_PACKET_R0KH_R1KH_PUSH; 15598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.data_length = host_to_le16(FT_R0KH_R1KH_PUSH_DATA_LEN); 15608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame.ap_address, wpa_auth->addr, ETH_ALEN); 15618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_wrap() does not support inplace encryption, so use a temporary 15638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 15648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.r1kh_id, r1kh->id, FT_R1KH_ID_LEN); 15658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.s1kh_id, s1kh_id, ETH_ALEN); 15668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.pmk_r0_name, pmk_r0->pmk_r0_name, WPA_PMK_NAME_LEN); 15678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1(pmk_r0->pmk_r0, pmk_r0->pmk_r0_name, r1kh->id, 15688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt s1kh_id, f.pmk_r1, f.pmk_r1_name); 15698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: R1KH-ID " MACSTR, MAC2STR(r1kh->id)); 15708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", f.pmk_r1, PMK_LEN); 15718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", f.pmk_r1_name, 15728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PMK_NAME_LEN); 15738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_get_time(&now); 15748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE32(f.timestamp, now.sec); 15758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pairwise = host_to_le16(pairwise); 15768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (aes_wrap(r1kh->key, (FT_R0KH_R1KH_PUSH_DATA_LEN + 7) / 8, 15778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.timestamp, frame.timestamp) < 0) 15788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 15798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, r1kh->addr, (u8 *) &frame, sizeof(frame)); 15818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 15828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_push_pmk_r1(struct wpa_authenticator *wpa_auth, const u8 *addr) 15858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 15868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0; 15878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r1kh *r1kh; 15888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_auth->conf.pmk_r1_push) 15908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 15918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = wpa_auth->ft_pmk_cache->pmk_r0; 15938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0) { 15948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0->spa, addr, ETH_ALEN) == 0) 15958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 15968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = r0->next; 15978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0 == NULL || r0->pmk_r1_pushed) 16008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 16018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0->pmk_r1_pushed = 1; 16028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Deriving and pushing PMK-R1 keys to R1KHs " 16048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "for STA " MACSTR, MAC2STR(addr)); 16058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = wpa_auth->conf.r1kh_list; 16078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1kh) { 16088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_generate_pmk_r1(wpa_auth, r0, r1kh, addr, r0->pairwise); 16098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = r1kh->next; 16108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 16128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211R */ 1614