wpa_auth_ft.c revision 807291d85bf857320aff6a8ade38c5f622ab9df8
18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * hostapd - IEEE 802.11r - Fast BSS Transition 3807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt * Copyright (c) 2004-2015, 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" 12d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt#include "utils/eloop.h" 136c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt#include "utils/list.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_defs.h" 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_common.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/aes_wrap.h" 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/random.h" 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "ap_config.h" 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "ieee802_11.h" 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wmm.h" 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa_auth.h" 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "wpa_auth_i.h" 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211R 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidtstatic int wpa_ft_send_rrb_auth_resp(struct wpa_state_machine *sm, 28d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt const u8 *current_ap, const u8 *sta_addr, 29d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt u16 status, const u8 *resp_ies, 30d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt size_t resp_ies_len); 31d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 32d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_send(struct wpa_authenticator *wpa_auth, const u8 *dst, 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.send_ether == NULL) 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB send to " MACSTR, MAC2STR(dst)); 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.send_ether(wpa_auth->cb.ctx, dst, ETH_P_RRB, 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data, data_len); 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_action_send(struct wpa_authenticator *wpa_auth, 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *dst, const u8 *data, size_t data_len) 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.send_ft_action == NULL) 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.send_ft_action(wpa_auth->cb.ctx, dst, 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data, data_len); 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic struct wpa_state_machine * 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtwpa_ft_add_sta(struct wpa_authenticator *wpa_auth, const u8 *sta_addr) 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.add_sta == NULL) 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.add_sta(wpa_auth->cb.ctx, sta_addr); 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtstatic int wpa_ft_add_tspec(struct wpa_authenticator *wpa_auth, 6461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const u8 *sta_addr, 6561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt u8 *tspec_ie, size_t tspec_ielen) 6661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 6761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (wpa_auth->cb.add_tspec == NULL) { 68fb79edc9df1f20461e90e478363d207348213d35Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: add_tspec is not initialized"); 6961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return -1; 7061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 7161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return wpa_auth->cb.add_tspec(wpa_auth->cb.ctx, sta_addr, tspec_ie, 7261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt tspec_ielen); 7361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 7461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 7561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_write_mdie(struct wpa_auth_config *conf, u8 *buf, size_t len) 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos = buf; 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 capab; 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 2 + sizeof(struct rsn_mdie)) 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_EID_MOBILITY_DOMAIN; 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = MOBILITY_DOMAIN_ID_LEN + 1; 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, conf->mobility_domain, MOBILITY_DOMAIN_ID_LEN); 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += MOBILITY_DOMAIN_ID_LEN; 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab = 0; 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (conf->ft_over_ds) 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt capab |= RSN_FT_CAPAB_FT_OVER_DS; 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = capab; 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos - buf; 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_write_ftie(struct wpa_auth_config *conf, const u8 *r0kh_id, 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t r0kh_id_len, 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *anonce, const u8 *snonce, 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf, size_t len, const u8 *subelem, 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t subelem_len) 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos = buf, *ielen; 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *hdr; 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 2 + sizeof(*hdr) + 2 + FT_R1KH_ID_LEN + 2 + r0kh_id_len + 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len) 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_EID_FAST_BSS_TRANSITION; 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = pos++; 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ftie *) pos; 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(hdr, 0, sizeof(*hdr)); 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*hdr); 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->mic_control, 0); 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (anonce) 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(hdr->anonce, anonce, WPA_NONCE_LEN); 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (snonce) 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(hdr->snonce, snonce, WPA_NONCE_LEN); 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Optional Parameters */ 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FTIE_SUBELEM_R1KH_ID; 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FT_R1KH_ID_LEN; 1248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, conf->r1_key_holder, FT_R1KH_ID_LEN); 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += FT_R1KH_ID_LEN; 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh_id) { 1288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FTIE_SUBELEM_R0KH_ID; 1298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = r0kh_id_len; 1308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, r0kh_id, r0kh_id_len); 1318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += r0kh_id_len; 1328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (subelem) { 1358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, subelem, subelem_len); 1368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += subelem_len; 1378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *ielen = pos - buf - 2; 1408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos - buf; 1428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_r0_sa { 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *next; 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0[PMK_LEN]; 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0_name[WPA_PMK_NAME_LEN]; 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 spa[ETH_ALEN]; 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */ 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: expiration, identity, radius_class, EAP type, VLAN ID */ 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pmk_r1_pushed; 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_r1_sa { 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *next; 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1[PMK_LEN]; 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1_name[WPA_PMK_NAME_LEN]; 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 spa[ETH_ALEN]; 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */ 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: expiration, identity, radius_class, EAP type, VLAN ID */ 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_cache { 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *pmk_r0; 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *pmk_r1; 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_ft_pmk_cache * wpa_ft_pmk_cache_init(void) 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache; 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cache = os_zalloc(sizeof(*cache)); 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return cache; 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_pmk_cache_deinit(struct wpa_ft_pmk_cache *cache) 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0, *r0prev; 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *r1, *r1prev; 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = cache->pmk_r0; 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0) { 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0prev = r0; 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = r0->next; 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(r0prev->pmk_r0, 0, PMK_LEN); 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(r0prev); 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = cache->pmk_r1; 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1) { 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1prev = r1; 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = r1->next; 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(r1prev->pmk_r1, 0, PMK_LEN); 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(r1prev); 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(cache); 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_store_pmk_r0(struct wpa_authenticator *wpa_auth, 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r0, 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pmk_r0_name, int pairwise) 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0; 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: add expiration and limit on number of entries in cache */ 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = os_zalloc(sizeof(*r0)); 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0 == NULL) 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r0->pmk_r0, pmk_r0, PMK_LEN); 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r0->pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN); 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r0->spa, spa, ETH_ALEN); 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0->pairwise = pairwise; 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0->next = cache->pmk_r0; 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cache->pmk_r0 = r0; 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_fetch_pmk_r0(struct wpa_authenticator *wpa_auth, 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r0_name, 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pmk_r0, int *pairwise) 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0; 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = cache->pmk_r0; 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0) { 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0->spa, spa, ETH_ALEN) == 0 && 239c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memcmp_const(r0->pmk_r0_name, pmk_r0_name, 240c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt WPA_PMK_NAME_LEN) == 0) { 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pmk_r0, r0->pmk_r0, PMK_LEN); 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pairwise) 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pairwise = r0->pairwise; 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = r0->next; 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_store_pmk_r1(struct wpa_authenticator *wpa_auth, 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r1, 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pmk_r1_name, int pairwise) 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *r1; 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: add expiration and limit on number of entries in cache */ 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = os_zalloc(sizeof(*r1)); 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r1 == NULL) 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r1->pmk_r1, pmk_r1, PMK_LEN); 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r1->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN); 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r1->spa, spa, ETH_ALEN); 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1->pairwise = pairwise; 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1->next = cache->pmk_r1; 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cache->pmk_r1 = r1; 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_fetch_pmk_r1(struct wpa_authenticator *wpa_auth, 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *spa, const u8 *pmk_r1_name, 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pmk_r1, int *pairwise) 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_cache *cache = wpa_auth->ft_pmk_cache; 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r1_sa *r1; 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = cache->pmk_r1; 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1) { 2888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r1->spa, spa, ETH_ALEN) == 0 && 289c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memcmp_const(r1->pmk_r1_name, pmk_r1_name, 290c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt WPA_PMK_NAME_LEN) == 0) { 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pmk_r1, r1->pmk_r1, PMK_LEN); 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pairwise) 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pairwise = r1->pairwise; 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1 = r1->next; 2988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 304d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidtstatic int wpa_ft_pull_pmk_r1(struct wpa_state_machine *sm, 305d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt const u8 *ies, size_t ies_len, 306d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt const u8 *pmk_r0_name) 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r0kh *r0kh; 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_pull_frame frame, f; 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 311d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt r0kh = sm->wpa_auth->conf.r0kh_list; 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0kh) { 313d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (r0kh->id_len == sm->r0kh_id_len && 314c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memcmp_const(r0kh->id, sm->r0kh_id, sm->r0kh_id_len) == 315c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt 0) 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = r0kh->next; 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 319d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (r0kh == NULL) { 320d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Did not find R0KH-ID", 321d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt sm->r0kh_id, sm->r0kh_id_len); 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 323d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt } 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Send PMK-R1 pull request to remote R0KH " 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "address " MACSTR, MAC2STR(r0kh->addr)); 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&frame, 0, sizeof(frame)); 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.packet_type = FT_PACKET_R0KH_R1KH_PULL; 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.data_length = host_to_le16(FT_R0KH_R1KH_PULL_DATA_LEN); 332d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt os_memcpy(frame.ap_address, sm->wpa_auth->addr, ETH_ALEN); 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_wrap() does not support inplace encryption, so use a temporary 3358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 336d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (random_get_bytes(f.nonce, FT_R0KH_R1KH_PULL_NONCE_LEN)) { 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to get random data for " 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "nonce"); 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 341d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt os_memcpy(sm->ft_pending_pull_nonce, f.nonce, 342d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt FT_R0KH_R1KH_PULL_NONCE_LEN); 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.pmk_r0_name, pmk_r0_name, WPA_PMK_NAME_LEN); 344d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt os_memcpy(f.r1kh_id, sm->wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN); 345d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt os_memcpy(f.s1kh_id, sm->addr, ETH_ALEN); 346b7b4d0ec07161a6d76c40ba7ef1306e82fbb7e15Dmitry Shmidt os_memset(f.pad, 0, sizeof(f.pad)); 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3489ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt if (aes_wrap(r0kh->key, sizeof(r0kh->key), 3499ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt (FT_R0KH_R1KH_PULL_DATA_LEN + 7) / 8, 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.nonce, frame.nonce) < 0) 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 353d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpabuf_free(sm->ft_pending_req_ies); 354d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt sm->ft_pending_req_ies = wpabuf_alloc_copy(ies, ies_len); 355d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (sm->ft_pending_req_ies == NULL) 356d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt return -1; 357d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 358d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_ft_rrb_send(sm->wpa_auth, r0kh->addr, (u8 *) &frame, sizeof(frame)); 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk, 365807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt struct wpa_ptk *ptk) 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0[PMK_LEN], pmk_r0_name[WPA_PMK_NAME_LEN]; 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1[PMK_LEN]; 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ptk_name[WPA_PMK_NAME_LEN]; 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *mdid = sm->wpa_auth->conf.mobility_domain; 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *r0kh = sm->wpa_auth->conf.r0_key_holder; 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t r0kh_len = sm->wpa_auth->conf.r0_key_holder_len; 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *r1kh = sm->wpa_auth->conf.r1_key_holder; 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ssid = sm->wpa_auth->conf.ssid; 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t ssid_len = sm->wpa_auth->conf.ssid_len; 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->xxkey_len == 0) { 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: XXKey not available for key " 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "derivation"); 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r0(sm->xxkey, sm->xxkey_len, ssid, ssid_len, mdid, 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh, r0kh_len, sm->addr, pmk_r0, pmk_r0_name); 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R0", pmk_r0, PMK_LEN); 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR0Name", pmk_r0_name, WPA_PMK_NAME_LEN); 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r0(sm->wpa_auth, sm->addr, pmk_r0, pmk_r0_name, 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise); 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1(pmk_r0, pmk_r0_name, r1kh, sm->addr, 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pmk_r1, sm->pmk_r1_name); 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", pmk_r1, PMK_LEN); 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", sm->pmk_r1_name, 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PMK_NAME_LEN); 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r1(sm->wpa_auth, sm->addr, pmk_r1, sm->pmk_r1_name, 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise); 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 398807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt return wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr, 399807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt sm->wpa_auth->addr, sm->pmk_r1_name, 400807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt ptk, ptk_name, sm->wpa_key_mgmt, sm->pairwise); 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic inline int wpa_auth_get_seqnum(struct wpa_authenticator *wpa_auth, 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *addr, int idx, u8 *seq) 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.get_seqnum == NULL) 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.get_seqnum(wpa_auth->cb.ctx, addr, idx, seq); 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_ft_gtk_subelem(struct wpa_state_machine *sm, size_t *len) 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *subelem; 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_group *gsm = sm->group; 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t subelem_len, pad_len; 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *key; 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t key_len; 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 keybuf[32]; 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_len = gsm->GTK_len; 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_len > sizeof(keybuf)) 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Pad key for AES Key Wrap if it is not multiple of 8 bytes or is less 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * than 16 bytes. 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pad_len = key_len % 8; 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (pad_len) 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pad_len = 8 - pad_len; 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (key_len + pad_len < 16) 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pad_len += 8; 435a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (pad_len && key_len < sizeof(keybuf)) { 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(keybuf, gsm->GTK[gsm->GN - 1], key_len); 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(keybuf + key_len, 0, pad_len); 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt keybuf[key_len] = 0xdd; 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_len += pad_len; 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key = keybuf; 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key = gsm->GTK[gsm->GN - 1]; 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Sub-elem ID[1] | Length[1] | Key Info[2] | Key Length[1] | RSC[8] | 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Key[5..32]. 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len = 13 + key_len + 8; 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = os_zalloc(subelem_len); 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (subelem == NULL) 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem[0] = FTIE_SUBELEM_GTK; 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem[1] = 11 + key_len + 8; 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Key ID in B0-B1 of Key Info */ 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(&subelem[2], gsm->GN & 0x03); 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem[4] = gsm->GTK_len; 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN, subelem + 5); 459807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt if (aes_wrap(sm->PTK.kek, sm->PTK.kek_len, key_len / 8, key, 460807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt subelem + 13)) { 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = subelem_len; 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return subelem; 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_ft_igtk_subelem(struct wpa_state_machine *sm, size_t *len) 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *subelem, *pos; 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_group *gsm = sm->group; 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t subelem_len; 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Sub-elem ID[1] | Length[1] | KeyID[2] | IPN[6] | Key Length[1] | 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Key[16+8] */ 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len = 1 + 1 + 2 + 6 + 1 + WPA_IGTK_LEN + 8; 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = os_zalloc(subelem_len); 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (subelem == NULL) 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = subelem; 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = FTIE_SUBELEM_IGTK; 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = subelem_len - 2; 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, gsm->GN_igtk); 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN_igtk, pos); 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 6; 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WPA_IGTK_LEN; 492807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt if (aes_wrap(sm->PTK.kek, sm->PTK.kek_len, WPA_IGTK_LEN / 8, 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt gsm->IGTK[gsm->GN_igtk - 4], pos)) { 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return NULL; 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *len = subelem_len; 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return subelem; 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 50461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtstatic u8 * wpa_ft_process_rdie(struct wpa_state_machine *sm, 50561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt u8 *pos, u8 *end, u8 id, u8 descr_count, 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies, size_t ies_len) 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ieee802_11_elems parse; 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_rdie *rdie; 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Resource Request: id=%d descr_count=%d", 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt id, descr_count); 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Resource descriptor IE(s)", 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies, ies_len); 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < (int) sizeof(*rdie)) { 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "FT: Not enough room for response RDIE"); 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_EID_RIC_DATA; 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = sizeof(*rdie); 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie = (struct rsn_rdie *) pos; 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->id = id; 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->descr_count = 0; 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = host_to_le16(WLAN_STATUS_SUCCESS); 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*rdie); 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ieee802_11_parse_elems((u8 *) ies, ies_len, &parse, 1) == 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ParseFailed) { 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to parse request IEs"); 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef NEED_AP_MLME 53861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (parse.wmm_tspec && sm->wpa_auth->conf.ap_mlme) { 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wmm_tspec_element *tspec; 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res; 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.wmm_tspec_len + 2 < (int) sizeof(*tspec)) { 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short WMM TSPEC IE " 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(%d)", (int) parse.wmm_tspec_len); 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < (int) sizeof(*tspec)) { 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "FT: Not enough room for " 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "response TSPEC"); 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tspec = (struct wmm_tspec_element *) pos; 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(tspec, parse.wmm_tspec - 2, sizeof(*tspec)); 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wmm_process_tspec(tspec); 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: ADDTS processing result: %d", res); 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res == WMM_ADDTS_STATUS_INVALID_PARAMETERS) 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_INVALID_PARAMETERS); 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else if (res == WMM_ADDTS_STATUS_REFUSED) 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt host_to_le16(WLAN_STATUS_REQUEST_DECLINED); 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else { 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TSPEC accepted; include updated TSPEC in response */ 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->descr_count = 1; 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*tspec); 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* NEED_AP_MLME */ 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 57561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (parse.wmm_tspec && !sm->wpa_auth->conf.ap_mlme) { 57661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt struct wmm_tspec_element *tspec; 57761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt int res; 57861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 57961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt tspec = (struct wmm_tspec_element *) pos; 58061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt os_memcpy(tspec, parse.wmm_tspec - 2, sizeof(*tspec)); 58161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt res = wpa_ft_add_tspec(sm->wpa_auth, sm->addr, pos, 58261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt sizeof(*tspec)); 58361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (res >= 0) { 58461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (res) 58561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt rdie->status_code = host_to_le16(res); 58661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt else { 58761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt /* TSPEC accepted; include updated TSPEC in 58861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * response */ 589fb79edc9df1f20461e90e478363d207348213d35Dmitry Shmidt rdie->descr_count = 1; 590fb79edc9df1f20461e90e478363d207348213d35Dmitry Shmidt pos += sizeof(*tspec); 59161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 59261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return pos; 59361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 59461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 59561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No supported resource requested"); 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->status_code = host_to_le16(WLAN_STATUS_UNSPECIFIED_FAILURE); 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 60261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtstatic u8 * wpa_ft_process_ric(struct wpa_state_machine *sm, u8 *pos, u8 *end, 60361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt const u8 *ric, size_t ric_len) 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *rpos, *start; 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct rsn_rdie *rdie; 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: RIC Request", ric, ric_len); 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos = ric; 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (rpos + sizeof(*rdie) < ric + ric_len) { 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rpos[0] != WLAN_EID_RIC_DATA || rpos[1] < sizeof(*rdie) || 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos + 2 + rpos[1] > ric + ric_len) 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie = (const struct rsn_rdie *) (rpos + 2); 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos += 2 + rpos[1]; 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt start = rpos; 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (rpos + 2 <= ric + ric_len && 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos + 2 + rpos[1] <= ric + ric_len) { 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rpos[0] == WLAN_EID_RIC_DATA) 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rpos += 2 + rpos[1]; 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 62561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt pos = wpa_ft_process_rdie(sm, pos, end, rdie->id, 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rdie->descr_count, 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt start, rpos - start); 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtu8 * wpa_sm_write_assoc_resp_ies(struct wpa_state_machine *sm, u8 *pos, 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t max_len, int auth_alg, 6368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *req_ies, size_t req_ies_len) 6378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *end, *mdie, *ftie, *rsnie = NULL, *r0kh_id, *subelem = NULL; 6398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t mdie_len, ftie_len, rsnie_len = 0, r0kh_id_len, subelem_len = 0; 6408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res; 6418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_auth_config *conf; 6428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *_ftie; 6438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_ies parse; 6448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *ric_start; 6458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *anonce, *snonce; 6468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 6488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt conf = &sm->wpa_auth->conf; 6518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 652fb79edc9df1f20461e90e478363d207348213d35Dmitry Shmidt if (!wpa_key_mgmt_ft(sm->wpa_key_mgmt)) 6538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = pos + max_len; 6568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) { 6588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * RSN (only present if this is a Reassociation Response and 6608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * part of a fast BSS transition) 6618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 6628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_write_rsn_ie(conf, pos, end - pos, sm->pmk_r1_name); 6638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res < 0) 6648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsnie = pos; 6668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsnie_len = res; 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += res; 6688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Mobility Domain Information */ 6718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_write_mdie(conf, pos, end - pos); 6728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res < 0) 6738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie = pos; 6758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie_len = res; 6768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += res; 6778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Fast BSS Transition Information */ 6798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) { 6808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = wpa_ft_gtk_subelem(sm, &subelem_len); 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id = sm->r0kh_id; 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id_len = sm->r0kh_id_len; 6838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt anonce = sm->ANonce; 6848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt snonce = sm->SNonce; 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_IEEE80211W 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->mgmt_frame_prot) { 6878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *igtk; 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t igtk_len; 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *nbuf; 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt igtk = wpa_ft_igtk_subelem(sm, &igtk_len); 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (igtk == NULL) { 6928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 6938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 6948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nbuf = os_realloc(subelem, subelem_len + igtk_len); 6968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (nbuf == NULL) { 6978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 6988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(igtk); 6998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem = nbuf; 7028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(subelem + subelem_len, igtk, igtk_len); 7038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt subelem_len += igtk_len; 7048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(igtk); 7058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211W */ 7078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 7088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id = conf->r0_key_holder; 7098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh_id_len = conf->r0_key_holder_len; 7108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt anonce = NULL; 7118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt snonce = NULL; 7128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_write_ftie(conf, r0kh_id, r0kh_id_len, anonce, snonce, pos, 7148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end - pos, subelem, subelem_len); 7158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(subelem); 7168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (res < 0) 7178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 7188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = pos; 7198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie_len = res; 7208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += res; 7218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(sm->assoc_resp_ftie); 7238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->assoc_resp_ftie = os_malloc(ftie_len); 7248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->assoc_resp_ftie) 7258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->assoc_resp_ftie, ftie, ftie_len); 7268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie = (struct rsn_ftie *) (ftie + 2); 7288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) 7298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie->mic_control[1] = 3; /* Information element count */ 7308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ric_start = pos; 7328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_parse_ies(req_ies, req_ies_len, &parse) == 0 && parse.ric) { 73361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt pos = wpa_ft_process_ric(sm, pos, end, parse.ric, 73461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt parse.ric_len); 7358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT) 7368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie->mic_control[1] += 7378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ieee802_11_ie_count(ric_start, 7388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos - ric_start); 7398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ric_start == pos) 7418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ric_start = NULL; 7428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (auth_alg == WLAN_AUTH_FT && 744807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt wpa_ft_mic(sm->PTK.kck, sm->PTK.kck_len, sm->addr, 745807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt sm->wpa_auth->addr, 6, 7468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie, mdie_len, ftie, ftie_len, 7478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsnie, rsnie_len, 7488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ric_start, ric_start ? pos - ric_start : 0, 7498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie->mic) < 0) 7508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to calculate MIC"); 7518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos; 7538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic inline int wpa_auth_set_key(struct wpa_authenticator *wpa_auth, 7578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int vlan_id, 7588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum wpa_alg alg, const u8 *addr, int idx, 7598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *key, size_t key_len) 7608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth->cb.set_key == NULL) 7628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 7638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_auth->cb.set_key(wpa_auth->cb.ctx, vlan_id, alg, addr, idx, 7648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key, key_len); 7658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_install_ptk(struct wpa_state_machine *sm) 7698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum wpa_alg alg; 7718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int klen; 7728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* MLME-SETKEYS.request(PTK) */ 7744530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt alg = wpa_cipher_to_alg(sm->pairwise); 7754530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt klen = wpa_cipher_key_len(sm->pairwise); 7764530cfd4d14a77c58e35393b91e40f8dd9d62697Dmitry Shmidt if (!wpa_cipher_valid_pairwise(sm->pairwise)) { 7778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unknown pairwise alg 0x%x - skip " 7788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PTK configuration", sm->pairwise); 7798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* FIX: add STA entry to kernel/driver here? The set_key will fail 7838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * most likely without this.. At the moment, STA entry is added only 7848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * after association has been completed. This function will be called 7858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * again after association to get the PTK configured, but that could be 7868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * optimized by adding the STA entry earlier. 7878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 7888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_auth_set_key(sm->wpa_auth, 0, alg, sm->addr, 0, 789807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt sm->PTK.tk, klen)) 7908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 7918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* FIX: MLME-SetProtection.Request(TA, Tx_Rx) */ 7938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise_set = TRUE; 7948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 797d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidtstatic int wpa_ft_process_auth_req(struct wpa_state_machine *sm, 7988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies, size_t ies_len, 7998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 **resp_ies, size_t *resp_ies_len) 8008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 8018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_mdie *mdie; 8028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *ftie; 8038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r1[PMK_LEN], pmk_r1_name[WPA_PMK_NAME_LEN]; 8048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ptk_name[WPA_PMK_NAME_LEN]; 8058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_auth_config *conf; 8068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_ies parse; 807807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt size_t buflen; 8088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret; 8098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos, *end; 8108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 8118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 8138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies_len = 0; 8148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pmk_r1_name_valid = 0; 8168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt conf = &sm->wpa_auth->conf; 8178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received authentication frame IEs", 8198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies, ies_len); 8208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) { 8228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to parse FT IEs"); 8238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie = (struct rsn_mdie *) parse.mdie; 8278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mdie == NULL || parse.mdie_len < sizeof(*mdie) || 8288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(mdie->mobility_domain, 8298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.mobility_domain, 8308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MOBILITY_DOMAIN_ID_LEN) != 0) { 8318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid MDIE"); 8328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_MDIE; 8338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct rsn_ftie *) parse.ftie; 8368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ftie == NULL || parse.ftie_len < sizeof(*ftie)) { 8378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid FTIE"); 8388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 8398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->SNonce, ftie->snonce, WPA_NONCE_LEN); 8428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r0kh_id == NULL) { 8448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid FTIE - no R0KH-ID"); 8458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 8468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: STA R0KH-ID", 8498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.r0kh_id, parse.r0kh_id_len); 8508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->r0kh_id, parse.r0kh_id, parse.r0kh_id_len); 8518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->r0kh_id_len = parse.r0kh_id_len; 8528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn_pmkid == NULL) { 8548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No PMKID in RSNIE"); 8558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 8568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Requested PMKR0Name", 8598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.rsn_pmkid, WPA_PMK_NAME_LEN); 8608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1_name(parse.rsn_pmkid, 8618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.r1_key_holder, sm->addr, 8628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pmk_r1_name); 8638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Derived requested PMKR1Name", 8648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pmk_r1_name, WPA_PMK_NAME_LEN); 8658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_fetch_pmk_r1(sm->wpa_auth, sm->addr, pmk_r1_name, pmk_r1, 8678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &pairwise) < 0) { 868d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (wpa_ft_pull_pmk_r1(sm, ies, ies_len, parse.rsn_pmkid) < 0) { 8698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Did not have matching " 8708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R1 and unknown R0KH-ID"); 8718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 8728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 874d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt return -1; /* Status pending */ 8758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: Selected PMK-R1", pmk_r1, PMK_LEN); 8788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pmk_r1_name_valid = 1; 8798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(sm->pmk_r1_name, pmk_r1_name, WPA_PMK_NAME_LEN); 8808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (random_get_bytes(sm->ANonce, WPA_NONCE_LEN)) { 8828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to get random data for " 8838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "ANonce"); 8848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received SNonce", 8888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->SNonce, WPA_NONCE_LEN); 8898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Generated ANonce", 8908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->ANonce, WPA_NONCE_LEN); 8918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 892807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt if (wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr, 893807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt sm->wpa_auth->addr, pmk_r1_name, 894807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt &sm->PTK, ptk_name, sm->wpa_key_mgmt, 895807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt pairwise) < 0) 896807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 8978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise = pairwise; 899717574375e969e8272c6d1a26137286eac158abbDmitry Shmidt sm->PTK_valid = TRUE; 9008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_install_ptk(sm); 9018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buflen = 2 + sizeof(struct rsn_mdie) + 2 + sizeof(struct rsn_ftie) + 9038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2 + FT_R1KH_ID_LEN + 200; 9048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = os_zalloc(buflen); 9058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (*resp_ies == NULL) { 9068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = *resp_ies; 9108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = *resp_ies + buflen; 9118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_write_rsn_ie(conf, pos, end - pos, parse.rsn_pmkid); 9138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) { 9148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(*resp_ies); 9158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 9168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ret; 9198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_write_mdie(conf, pos, end - pos); 9218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) { 9228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(*resp_ies); 9238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 9248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ret; 9278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = wpa_write_ftie(conf, parse.r0kh_id, parse.r0kh_id_len, 9298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->ANonce, sm->SNonce, pos, end - pos, NULL, 0); 9308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ret < 0) { 9318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(*resp_ies); 9328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies = NULL; 9338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ret; 9368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *resp_ies_len = pos - *resp_ies; 9388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_SUCCESS; 9408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_process_auth(struct wpa_state_machine *sm, const u8 *bssid, 9448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 auth_transaction, const u8 *ies, size_t ies_len, 9458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt void (*cb)(void *ctx, const u8 *dst, const u8 *bssid, 9468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 auth_transaction, u16 status, 9478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies, size_t ies_len), 9488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt void *ctx) 9498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 9518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *resp_ies; 9528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t resp_ies_len; 953d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt int res; 9548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) { 9568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received authentication frame, but " 9578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "WPA SM not available"); 9588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 9598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received authentication frame: STA=" MACSTR 9628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " BSSID=" MACSTR " transaction=%d", 9638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), MAC2STR(bssid), auth_transaction); 964d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt sm->ft_pending_cb = cb; 965d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt sm->ft_pending_cb_ctx = ctx; 966d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt sm->ft_pending_auth_transaction = auth_transaction; 967d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt res = wpa_ft_process_auth_req(sm, ies, ies_len, &resp_ies, 968d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt &resp_ies_len); 969d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (res < 0) { 970d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Callback postponed until response is available"); 971d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt return; 972d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt } 973d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt status = res; 9748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: FT authentication response: dst=" MACSTR 9768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " auth_transaction=%d status=%d", 9778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), auth_transaction + 1, status); 9788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Response IEs", resp_ies, resp_ies_len); 9798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cb(ctx, sm->addr, bssid, auth_transaction + 1, status, 9808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp_ies, resp_ies_len); 9818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(resp_ies); 9828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtu16 wpa_ft_validate_reassoc(struct wpa_state_machine *sm, const u8 *ies, 9868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t ies_len) 9878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_ies parse; 9898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_mdie *mdie; 9908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ftie *ftie; 991807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt u8 mic[WPA_EAPOL_KEY_MIC_MAX_LEN]; 992807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt size_t mic_len = 16; 9938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt unsigned int count; 9948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 9968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 9978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Reassoc Req IEs", ies, ies_len); 9998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) { 10018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to parse FT IEs"); 10028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 10038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn == NULL) { 10068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No RSNIE in Reassoc Req"); 10078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 10088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn_pmkid == NULL) { 10118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No PMKID in RSNIE"); 10128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 10138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1015c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt if (os_memcmp_const(parse.rsn_pmkid, sm->pmk_r1_name, WPA_PMK_NAME_LEN) 1016c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt != 0) { 10178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMKID in Reassoc Req did not match " 10188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "with the PMKR1Name derived from auth request"); 10198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_PMKID; 10208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mdie = (struct rsn_mdie *) parse.mdie; 10238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (mdie == NULL || parse.mdie_len < sizeof(*mdie) || 10248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(mdie->mobility_domain, 10258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.mobility_domain, 10268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MOBILITY_DOMAIN_ID_LEN) != 0) { 10278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid MDIE"); 10288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_MDIE; 10298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct rsn_ftie *) parse.ftie; 10328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ftie == NULL || parse.ftie_len < sizeof(*ftie)) { 10338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid FTIE"); 10348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 10358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(ftie->snonce, sm->SNonce, WPA_NONCE_LEN) != 0) { 10388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: SNonce mismatch in FTIE"); 10398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received SNonce", 10408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->snonce, WPA_NONCE_LEN); 10418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Expected SNonce", 10428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->SNonce, WPA_NONCE_LEN); 10438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(ftie->anonce, sm->ANonce, WPA_NONCE_LEN) != 0) { 10478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: ANonce mismatch in FTIE"); 10488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Received ANonce", 10498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->anonce, WPA_NONCE_LEN); 10508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Expected ANonce", 10518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->ANonce, WPA_NONCE_LEN); 10528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r0kh_id == NULL) { 10578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No R0KH-ID subelem in FTIE"); 10588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r0kh_id_len != sm->r0kh_id_len || 1062c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memcmp_const(parse.r0kh_id, sm->r0kh_id, parse.r0kh_id_len) != 0) 1063c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt { 10648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: R0KH-ID in FTIE did not match with " 10658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "the current R0KH-ID"); 10668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: R0KH-ID in FTIE", 10678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.r0kh_id, parse.r0kh_id_len); 10688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: The current R0KH-ID", 10698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->r0kh_id, sm->r0kh_id_len); 10708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.r1kh_id == NULL) { 10748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No R1KH-ID subelem in FTIE"); 10758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1078c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt if (os_memcmp_const(parse.r1kh_id, sm->wpa_auth->conf.r1_key_holder, 1079c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt FT_R1KH_ID_LEN) != 0) { 10808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unknown R1KH-ID used in " 10818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "ReassocReq"); 10828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: R1KH-ID in FTIE", 10838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.r1kh_id, FT_R1KH_ID_LEN); 10848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Expected R1KH-ID", 10858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->wpa_auth->conf.r1_key_holder, FT_R1KH_ID_LEN); 10868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.rsn_pmkid == NULL || 1090c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt os_memcmp_const(parse.rsn_pmkid, sm->pmk_r1_name, WPA_PMK_NAME_LEN)) 1091c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt { 10928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching PMKR1Name (PMKID) in " 10938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RSNIE (pmkid=%d)", !!parse.rsn_pmkid); 10948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count = 3; 10988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (parse.ric) 10991f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt count += ieee802_11_ie_count(parse.ric, parse.ric_len); 11008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ftie->mic_control[1] != count) { 11018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unexpected IE count in MIC " 11028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Control: received %u expected %u", 11038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->mic_control[1], count); 11048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1107807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt if (wpa_ft_mic(sm->PTK.kck, sm->PTK.kck_len, sm->addr, 1108807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt sm->wpa_auth->addr, 5, 11098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.mdie - 2, parse.mdie_len + 2, 11108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.ftie - 2, parse.ftie_len + 2, 11118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.rsn - 2, parse.rsn_len + 2, 11128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt parse.ric, parse.ric_len, 11138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mic) < 0) { 11148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to calculate MIC"); 11158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 11168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1118807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt if (os_memcmp_const(mic, ftie->mic, mic_len) != 0) { 11198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid MIC in FTIE"); 112061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: addr=" MACSTR " auth_addr=" MACSTR, 112161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt MAC2STR(sm->addr), MAC2STR(sm->wpa_auth->addr)); 1122807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Received MIC", 1123807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt ftie->mic, mic_len); 1124807291d85bf857320aff6a8ade38c5f622ab9df8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Calculated MIC", mic, mic_len); 112561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: MDIE", 112661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt parse.mdie - 2, parse.mdie_len + 2); 112761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: FTIE", 112861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt parse.ftie - 2, parse.ftie_len + 2); 112961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: RSN", 113061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt parse.rsn - 2, parse.rsn_len + 2); 11318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_INVALID_FTIE; 11328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return WLAN_STATUS_SUCCESS; 11358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_ft_action_rx(struct wpa_state_machine *sm, const u8 *data, size_t len) 11398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *sta_addr, *target_ap; 11418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ies; 11428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t ies_len; 11438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action; 11448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_rrb_frame *frame; 11458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 11478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 11508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * data: Category[1] Action[1] STA_Address[6] Target_AP_Address[6] 11518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * FT Request action frame body[variable] 11528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 11538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 14) { 11558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short FT Action frame " 11568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(len=%lu)", (unsigned long) len); 11578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt action = data[1]; 11618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sta_addr = data + 2; 11628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt target_ap = data + 8; 11638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies = data + 14; 11648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ies_len = len - 14; 11658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received FT Action frame (STA=" MACSTR 11678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " Target AP=" MACSTR " Action=%d)", 11688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sta_addr), MAC2STR(target_ap), action); 11698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sta_addr, sm->addr, ETH_ALEN) != 0) { 11718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Mismatch in FT Action STA address: " 11728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "STA=" MACSTR " STA-Address=" MACSTR, 11738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), MAC2STR(sta_addr)); 11748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 11788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Do some sanity checking on the target AP address (not own and not 11798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * broadcast. This could be extended to filter based on a list of known 11808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * APs in the MD (if such a list were configured). 11818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 11828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((target_ap[0] & 0x01) || 11838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(target_ap, sm->wpa_auth->addr, ETH_ALEN) == 0) { 11848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Invalid Target AP in FT Action " 11858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "frame"); 11868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: Action frame body", ies, ies_len); 11908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* RRB - Forward action frame to the target AP */ 11928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = os_malloc(sizeof(*frame) + len); 11934b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt if (frame == NULL) 11944b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt return -1; 11958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 11968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->packet_type = FT_PACKET_REQUEST; 11978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->action_length = host_to_le16(len); 11988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame->ap_address, sm->wpa_auth->addr, ETH_ALEN); 11998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame + 1, data, len); 12008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(sm->wpa_auth, target_ap, (u8 *) frame, 12028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(*frame) + len); 12038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(frame); 12048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 12068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1209d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidtstatic void wpa_ft_rrb_rx_request_cb(void *ctx, const u8 *dst, const u8 *bssid, 1210d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt u16 auth_transaction, u16 resp, 1211d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt const u8 *ies, size_t ies_len) 1212d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt{ 1213d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt struct wpa_state_machine *sm = ctx; 1214d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Over-the-DS RX request cb for " MACSTR, 1215d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt MAC2STR(sm->addr)); 1216d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_ft_send_rrb_auth_resp(sm, sm->ft_pending_current_ap, sm->addr, 1217d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt WLAN_STATUS_SUCCESS, ies, ies_len); 1218d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt} 1219d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1220d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 12218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_request(struct wpa_authenticator *wpa_auth, 12228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *current_ap, const u8 *sta_addr, 12238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *body, size_t len) 12248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_state_machine *sm; 12268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 1227d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt u8 *resp_ies; 1228d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt size_t resp_ies_len; 1229d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt int res; 12308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm = wpa_ft_add_sta(wpa_auth, sta_addr); 12328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) { 12338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to add new STA based on " 12348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RRB Request"); 12358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: RRB Request Frame body", body, len); 12398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1240d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt sm->ft_pending_cb = wpa_ft_rrb_rx_request_cb; 1241d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt sm->ft_pending_cb_ctx = sm; 1242d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt os_memcpy(sm->ft_pending_current_ap, current_ap, ETH_ALEN); 1243d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt res = wpa_ft_process_auth_req(sm, body, len, &resp_ies, 1244d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt &resp_ies_len); 1245d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (res < 0) { 1246d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No immediate response available - wait for pull response"); 1247d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt return 0; 1248d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt } 1249d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt status = res; 1250d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1251d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt res = wpa_ft_send_rrb_auth_resp(sm, current_ap, sta_addr, status, 1252d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt resp_ies, resp_ies_len); 1253d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt os_free(resp_ies); 1254d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt return res; 1255d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt} 1256d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1257d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1258d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidtstatic int wpa_ft_send_rrb_auth_resp(struct wpa_state_machine *sm, 1259d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt const u8 *current_ap, const u8 *sta_addr, 1260d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt u16 status, const u8 *resp_ies, 1261d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt size_t resp_ies_len) 1262d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt{ 1263d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt struct wpa_authenticator *wpa_auth = sm->wpa_auth; 1264d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt size_t rlen; 1265d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt struct ft_rrb_frame *frame; 1266d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt u8 *pos; 12678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB authentication response: STA=" MACSTR 12698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " CurrentAP=" MACSTR " status=%d", 12708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(sm->addr), MAC2STR(current_ap), status); 12718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Response IEs", resp_ies, resp_ies_len); 12728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* RRB - Forward action frame response to the Current AP */ 12748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 12768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * data: Category[1] Action[1] STA_Address[6] Target_AP_Address[6] 12778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Status_Code[2] FT Request action frame body[variable] 12788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 12798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rlen = 2 + 2 * ETH_ALEN + 2 + resp_ies_len; 12808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = os_malloc(sizeof(*frame) + rlen); 1282d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (frame == NULL) 12834b06059785b935dd1f4f09314e4e12c417d2c6a4Dmitry Shmidt return -1; 12848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 12858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->packet_type = FT_PACKET_RESPONSE; 12868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->action_length = host_to_le16(rlen); 12878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame->ap_address, wpa_auth->addr, ETH_ALEN); 12888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (frame + 1); 12898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = WLAN_ACTION_FT; 12908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 2; /* Action: Response */ 12918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, sta_addr, ETH_ALEN); 12928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 12938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, wpa_auth->addr, ETH_ALEN); 12948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 12958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, status); 12968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 1297d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (resp_ies) 12988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, resp_ies, resp_ies_len); 12998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, current_ap, (u8 *) frame, 13018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(*frame) + rlen); 13028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(frame); 13038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 13058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 13068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_pull(struct wpa_authenticator *wpa_auth, 13098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *src_addr, 13108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 13118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 13126c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt struct ft_r0kh_r1kh_pull_frame f; 13136c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt const u8 *crypt; 13146c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt u8 *plain; 13158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r1kh *r1kh; 13168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_resp_frame resp, r; 13178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 pmk_r0[PMK_LEN]; 13188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 13198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 pull"); 13218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13226c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt if (data_len < sizeof(f)) 13238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = wpa_auth->conf.r1kh_list; 13268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1kh) { 13278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r1kh->addr, src_addr, ETH_ALEN) == 0) 13288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 13298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = r1kh->next; 13308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r1kh == NULL) { 13328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching R1KH address found for " 13338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R1 pull source address " MACSTR, 13348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 13358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13386c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt crypt = data + offsetof(struct ft_r0kh_r1kh_pull_frame, nonce); 13396c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt os_memset(&f, 0, sizeof(f)); 13406c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt plain = ((u8 *) &f) + offsetof(struct ft_r0kh_r1kh_pull_frame, nonce); 13418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_unwrap() does not support inplace decryption, so use a temporary 13428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 13439ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt if (aes_unwrap(r1kh->key, sizeof(r1kh->key), 13449ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt (FT_R0KH_R1KH_PULL_DATA_LEN + 7) / 8, 13456c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt crypt, plain) < 0) { 13468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 pull " 13478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "request from " MACSTR, MAC2STR(src_addr)); 13488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - nonce", 13528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.nonce, sizeof(f.nonce)); 13538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - PMKR0Name", 13548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r0_name, WPA_PMK_NAME_LEN); 1355d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull - R1KH-ID=" MACSTR " S1KH-ID=" 13568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id)); 13578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&resp, 0, sizeof(resp)); 13598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 13608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp.packet_type = FT_PACKET_R0KH_R1KH_RESP; 13618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt resp.data_length = host_to_le16(FT_R0KH_R1KH_RESP_DATA_LEN); 13628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(resp.ap_address, wpa_auth->addr, ETH_ALEN); 13638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_wrap() does not support inplace encryption, so use a temporary 13658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 13668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r.nonce, f.nonce, sizeof(f.nonce)); 13678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r.r1kh_id, f.r1kh_id, FT_R1KH_ID_LEN); 13688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(r.s1kh_id, f.s1kh_id, ETH_ALEN); 13698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_fetch_pmk_r0(wpa_auth, f.s1kh_id, f.pmk_r0_name, pmk_r0, 13708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt &pairwise) < 0) { 13718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching PMKR0Name found for " 13728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R1 pull"); 13738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1(pmk_r0, f.pmk_r0_name, f.r1kh_id, f.s1kh_id, 13778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r.pmk_r1, r.pmk_r1_name); 13788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", r.pmk_r1, PMK_LEN); 13798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", r.pmk_r1_name, 13808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PMK_NAME_LEN); 13818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r.pairwise = host_to_le16(pairwise); 1382b7b4d0ec07161a6d76c40ba7ef1306e82fbb7e15Dmitry Shmidt os_memset(r.pad, 0, sizeof(r.pad)); 13838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13849ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt if (aes_wrap(r1kh->key, sizeof(r1kh->key), 13859ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt (FT_R0KH_R1KH_RESP_DATA_LEN + 7) / 8, 13868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r.nonce, resp.nonce) < 0) { 13878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(pmk_r0, 0, PMK_LEN); 13888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(pmk_r0, 0, PMK_LEN); 13928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, src_addr, (u8 *) &resp, sizeof(resp)); 13948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 13968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 13978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1399d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidtstatic void ft_pull_resp_cb_finish(void *eloop_ctx, void *timeout_ctx) 1400d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt{ 1401d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt struct wpa_state_machine *sm = eloop_ctx; 1402d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt int res; 1403d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt u8 *resp_ies; 1404d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt size_t resp_ies_len; 1405d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt u16 status; 1406d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1407d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt res = wpa_ft_process_auth_req(sm, wpabuf_head(sm->ft_pending_req_ies), 1408d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpabuf_len(sm->ft_pending_req_ies), 1409d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt &resp_ies, &resp_ies_len); 1410d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpabuf_free(sm->ft_pending_req_ies); 1411d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt sm->ft_pending_req_ies = NULL; 1412d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (res < 0) 1413d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt res = WLAN_STATUS_UNSPECIFIED_FAILURE; 1414d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt status = res; 1415d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Postponed auth callback result for " MACSTR 1416d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt " - status %u", MAC2STR(sm->addr), status); 1417d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1418d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt sm->ft_pending_cb(sm->ft_pending_cb_ctx, sm->addr, sm->wpa_auth->addr, 1419d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt sm->ft_pending_auth_transaction + 1, status, 1420d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt resp_ies, resp_ies_len); 1421d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt os_free(resp_ies); 1422d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt} 1423d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1424d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1425d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidtstatic int ft_pull_resp_cb(struct wpa_state_machine *sm, void *ctx) 1426d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt{ 1427d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt struct ft_r0kh_r1kh_resp_frame *frame = ctx; 1428d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1429d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (os_memcmp(frame->s1kh_id, sm->addr, ETH_ALEN) != 0) 1430d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt return 0; 1431d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (os_memcmp(frame->nonce, sm->ft_pending_pull_nonce, 1432d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt FT_R0KH_R1KH_PULL_NONCE_LEN) != 0) 1433d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt return 0; 1434d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt if (sm->ft_pending_cb == NULL || sm->ft_pending_req_ies == NULL) 1435d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt return 0; 1436d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1437d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Response to a pending pull request for " 1438d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt MACSTR " - process from timeout", MAC2STR(sm->addr)); 1439d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt eloop_register_timeout(0, 0, ft_pull_resp_cb_finish, sm, NULL); 1440d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt return 1; 1441d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt} 1442d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 1443d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt 14448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_resp(struct wpa_authenticator *wpa_auth, 14458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *src_addr, 14468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 14478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 14486c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt struct ft_r0kh_r1kh_resp_frame f; 14496c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt const u8 *crypt; 14506c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt u8 *plain; 14518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r0kh *r0kh; 1452d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt int pairwise, res; 14538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 pull response"); 14558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14566c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt if (data_len < sizeof(f)) 14578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = wpa_auth->conf.r0kh_list; 14608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0kh) { 14618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0kh->addr, src_addr, ETH_ALEN) == 0) 14628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 14638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = r0kh->next; 14648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh == NULL) { 14668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching R0KH address found for " 14678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R0 pull response source address " MACSTR, 14688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 14698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14726c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt crypt = data + offsetof(struct ft_r0kh_r1kh_resp_frame, nonce); 14736c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt os_memset(&f, 0, sizeof(f)); 14746c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt plain = ((u8 *) &f) + offsetof(struct ft_r0kh_r1kh_resp_frame, nonce); 14758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_unwrap() does not support inplace decryption, so use a temporary 14768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 14779ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt if (aes_unwrap(r0kh->key, sizeof(r0kh->key), 14789ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt (FT_R0KH_R1KH_RESP_DATA_LEN + 7) / 8, 14796c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt crypt, plain) < 0) { 14808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 pull " 14818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "response from " MACSTR, MAC2STR(src_addr)); 14828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1485c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt if (os_memcmp_const(f.r1kh_id, wpa_auth->conf.r1_key_holder, 1486c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt FT_R1KH_ID_LEN) != 0) { 14878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull response did not use a " 14888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "matching R1KH-ID"); 14898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 14908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 14918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 14928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise = le_to_host16(f.pairwise); 14938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - nonce", 14948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.nonce, sizeof(f.nonce)); 1495d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 pull - R1KH-ID=" MACSTR " S1KH-ID=" 14968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR " pairwise=0x%x", 14978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id), pairwise); 14988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1 pull - PMK-R1", 14998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1, PMK_LEN); 15008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 pull - PMKR1Name", 15018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1_name, WPA_PMK_NAME_LEN); 15028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1503d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt res = wpa_ft_store_pmk_r1(wpa_auth, f.s1kh_id, f.pmk_r1, f.pmk_r1_name, 1504d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt pairwise); 1505d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Look for pending pull request"); 1506d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt wpa_auth_for_each_sta(wpa_auth, ft_pull_resp_cb, &f); 15078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(f.pmk_r1, 0, PMK_LEN); 15088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1509d11f019d62a42a8fc4c4d1f2ec17cf35b0763153Dmitry Shmidt return res ? 0 : -1; 15108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 15118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_ft_rrb_rx_push(struct wpa_authenticator *wpa_auth, 15148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *src_addr, 15158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 15168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 15176c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt struct ft_r0kh_r1kh_push_frame f; 15186c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt const u8 *crypt; 15196c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt u8 *plain; 15208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r0kh *r0kh; 15218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct os_time now; 15228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_time_t tsend; 15238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int pairwise; 15248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Received PMK-R1 push"); 15268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15276c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt if (data_len < sizeof(f)) 15288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = wpa_auth->conf.r0kh_list; 15318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0kh) { 15328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0kh->addr, src_addr, ETH_ALEN) == 0) 15338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 15348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0kh = r0kh->next; 15358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0kh == NULL) { 15378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: No matching R0KH address found for " 15388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "PMK-R0 push source address " MACSTR, 15398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 15408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15436c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt crypt = data + offsetof(struct ft_r0kh_r1kh_push_frame, timestamp); 15446c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt os_memset(&f, 0, sizeof(f)); 15456c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt plain = ((u8 *) &f) + offsetof(struct ft_r0kh_r1kh_push_frame, 15466c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt timestamp); 15478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_unwrap() does not support inplace decryption, so use a temporary 15488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 15499ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt if (aes_unwrap(r0kh->key, sizeof(r0kh->key), 15509ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt (FT_R0KH_R1KH_PUSH_DATA_LEN + 7) / 8, 15516c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt crypt, plain) < 0) { 15528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Failed to decrypt PMK-R1 push from " 15538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR, MAC2STR(src_addr)); 15548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_get_time(&now); 15588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tsend = WPA_GET_LE32(f.timestamp); 15598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((now.sec > tsend && now.sec - tsend > 60) || 15608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (now.sec < tsend && tsend - now.sec > 60)) { 15618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 push did not have a valid " 15628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "timestamp: sender time %d own time %d\n", 15638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (int) tsend, (int) now.sec); 15648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1567c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt if (os_memcmp_const(f.r1kh_id, wpa_auth->conf.r1_key_holder, 1568c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt FT_R1KH_ID_LEN) != 0) { 15698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 push did not use a matching " 15708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "R1KH-ID (received " MACSTR " own " MACSTR ")", 15718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(f.r1kh_id), 15728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(wpa_auth->conf.r1_key_holder)); 15738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 15758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise = le_to_host16(f.pairwise); 15778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: PMK-R1 push - R1KH-ID=" MACSTR " S1KH-ID=" 15788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR " pairwise=0x%x", 15798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(f.r1kh_id), MAC2STR(f.s1kh_id), pairwise); 15808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1 push - PMK-R1", 15818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1, PMK_LEN); 15828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMK-R1 push - PMKR1Name", 15838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pmk_r1_name, WPA_PMK_NAME_LEN); 15848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_store_pmk_r1(wpa_auth, f.s1kh_id, f.pmk_r1, f.pmk_r1_name, 15868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pairwise); 15878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(f.pmk_r1, 0, PMK_LEN); 15888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 15908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 15918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_ft_rrb_rx(struct wpa_authenticator *wpa_auth, const u8 *src_addr, 15948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len) 15958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 15968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_rrb_frame *frame; 15978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 alen; 15988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos, *end, *start; 15998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action; 16008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *sta_addr, *target_ap_addr; 16018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB received frame from remote AP " MACSTR, 16038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 16048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data_len < sizeof(*frame)) { 16068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short RRB frame (data_len=%lu)", 16078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) data_len); 16088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 16098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = data; 16128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame = (struct ft_rrb_frame *) pos; 16138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*frame); 16148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt alen = le_to_host16(frame->action_length); 16168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB frame - frame_type=%d packet_type=%d " 16178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "action_length=%d ap_address=" MACSTR, 16188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame->frame_type, frame->packet_type, alen, 16198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(frame->ap_address)); 16208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->frame_type != RSN_REMOTE_FRAME_TYPE_FT_RRB) { 16228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Discard frame per IEEE Std 802.11r-2008, 11A.10.3 */ 16238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB discarded frame with " 16248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "unrecognized type %d", frame->frame_type); 16258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 16268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (alen > data_len - sizeof(*frame)) { 16298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB frame too short for action " 16308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "frame"); 16318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 16328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_R0KH_R1KH_PULL) 16358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_ft_rrb_rx_pull(wpa_auth, src_addr, data, data_len); 16368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_R0KH_R1KH_RESP) 16378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_ft_rrb_rx_resp(wpa_auth, src_addr, data, data_len); 16388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_R0KH_R1KH_PUSH) 16398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_ft_rrb_rx_push(wpa_auth, src_addr, data, data_len); 16408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "FT: RRB - FT Action frame", pos, alen); 16428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (alen < 1 + 1 + 2 * ETH_ALEN) { 16448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Too short RRB frame (not enough " 16458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "room for Action Frame body); alen=%lu", 16468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned long) alen); 16478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 16488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt start = pos; 16508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt end = pos + alen; 16518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (*pos != WLAN_ACTION_FT) { 16538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unexpected Action frame category " 16548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "%d", *pos); 16558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 16568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos++; 16598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt action = *pos++; 16608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sta_addr = pos; 16618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 16628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt target_ap_addr = pos; 16638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 16648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB Action Frame: action=%d sta_addr=" 16658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MACSTR " target_ap_addr=" MACSTR, 16668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt action, MAC2STR(sta_addr), MAC2STR(target_ap_addr)); 16678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (frame->packet_type == FT_PACKET_REQUEST) { 16698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: FT Packet Type - Request"); 16708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (action != 1) { 16728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Unexpected Action %d in " 16738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RRB Request", action); 16748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 16758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(target_ap_addr, wpa_auth->addr, ETH_ALEN) != 0) { 16788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Target AP address in the " 16798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "RRB Request does not match with own " 16808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "address"); 16818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 16828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_rrb_rx_request(wpa_auth, frame->ap_address, 16858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sta_addr, pos, end - pos) < 0) 16868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 16878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else if (frame->packet_type == FT_PACKET_RESPONSE) { 16888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status_code; 16898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (end - pos < 2) { 16918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Not enough room for status " 16928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "code in RRB Response"); 16938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 16948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status_code = WPA_GET_LE16(pos); 16968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 16978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: FT Packet Type - Response " 16998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(status_code=%d)", status_code); 17008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_ft_action_send(wpa_auth, sta_addr, start, alen) < 0) 17028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 17038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 17048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: RRB discarded frame with unknown " 17058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "packet_type %d", frame->packet_type); 17068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 17078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1709c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt if (end > pos) { 1710c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: Ignore extra data in end", 1711c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt pos, end - pos); 1712c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt } 1713c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt 17148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 17158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 17168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_ft_generate_pmk_r1(struct wpa_authenticator *wpa_auth, 17198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *pmk_r0, 17208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r1kh *r1kh, 17218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *s1kh_id, int pairwise) 17228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 17238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_r0kh_r1kh_push_frame frame, f; 17248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct os_time now; 17256c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt const u8 *plain; 17266c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt u8 *crypt; 17278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&frame, 0, sizeof(frame)); 17298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.frame_type = RSN_REMOTE_FRAME_TYPE_FT_RRB; 17308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.packet_type = FT_PACKET_R0KH_R1KH_PUSH; 17318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt frame.data_length = host_to_le16(FT_R0KH_R1KH_PUSH_DATA_LEN); 17328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(frame.ap_address, wpa_auth->addr, ETH_ALEN); 17338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* aes_wrap() does not support inplace encryption, so use a temporary 17358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * buffer for the data. */ 17368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.r1kh_id, r1kh->id, FT_R1KH_ID_LEN); 17378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.s1kh_id, s1kh_id, ETH_ALEN); 17388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(f.pmk_r0_name, pmk_r0->pmk_r0_name, WPA_PMK_NAME_LEN); 17398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_derive_pmk_r1(pmk_r0->pmk_r0, pmk_r0->pmk_r0_name, r1kh->id, 17408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt s1kh_id, f.pmk_r1, f.pmk_r1_name); 17418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: R1KH-ID " MACSTR, MAC2STR(r1kh->id)); 17428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "FT: PMK-R1", f.pmk_r1, PMK_LEN); 17438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "FT: PMKR1Name", f.pmk_r1_name, 17448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PMK_NAME_LEN); 17458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_get_time(&now); 17468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE32(f.timestamp, now.sec); 17478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt f.pairwise = host_to_le16(pairwise); 1748b7b4d0ec07161a6d76c40ba7ef1306e82fbb7e15Dmitry Shmidt os_memset(f.pad, 0, sizeof(f.pad)); 17496c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt plain = ((const u8 *) &f) + offsetof(struct ft_r0kh_r1kh_push_frame, 17506c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt timestamp); 17516c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt crypt = ((u8 *) &frame) + offsetof(struct ft_r0kh_r1kh_push_frame, 17526c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt timestamp); 17539ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt if (aes_wrap(r1kh->key, sizeof(r1kh->key), 17549ead16e203b81d44a2d84eadc2901ceeb7daf805Dmitry Shmidt (FT_R0KH_R1KH_PUSH_DATA_LEN + 7) / 8, 17556c0da2bb83f6915d8260912362692d1a742e057bDmitry Shmidt plain, crypt) < 0) 17568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 17578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_rrb_send(wpa_auth, r1kh->addr, (u8 *) &frame, sizeof(frame)); 17598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 17608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_ft_push_pmk_r1(struct wpa_authenticator *wpa_auth, const u8 *addr) 17638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 17648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ft_pmk_r0_sa *r0; 17658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct ft_remote_r1kh *r1kh; 17668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_auth->conf.pmk_r1_push) 17688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 17698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = wpa_auth->ft_pmk_cache->pmk_r0; 17718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r0) { 17728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(r0->spa, addr, ETH_ALEN) == 0) 17738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 17748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0 = r0->next; 17758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (r0 == NULL || r0->pmk_r1_pushed) 17788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 17798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r0->pmk_r1_pushed = 1; 17808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "FT: Deriving and pushing PMK-R1 keys to R1KHs " 17828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "for STA " MACSTR, MAC2STR(addr)); 17838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = wpa_auth->conf.r1kh_list; 17858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (r1kh) { 17868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_ft_generate_pmk_r1(wpa_auth, r0, r1kh, addr, r0->pairwise); 17878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt r1kh = r1kh->next; 17888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 17908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_IEEE80211R */ 1792