tdls.c revision 344abd362cfe2d03ed956666527352826b67bde5
18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_supplicant - TDLS 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2010-2011, Atheros Communications 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * This software may be distributed under the terms of the BSD license. 6c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * See README for more details. 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "utils/includes.h" 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "utils/common.h" 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "utils/eloop.h" 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "utils/os.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common/ieee802_11_defs.h" 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/sha256.h" 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/crypto.h" 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "crypto/aes_wrap.h" 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "rsn_supp/wpa.h" 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "rsn_supp/wpa_ie.h" 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "rsn_supp/wpa_i.h" 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "drivers/driver.h" 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "l2_packet/l2_packet.h" 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_LONG_FRAME BIT(0) 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_ALT_RSN_IE BIT(1) 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_DIFF_BSSID BIT(2) 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_SHORT_LIFETIME BIT(3) 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_WRONG_LIFETIME_RESP BIT(4) 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_WRONG_LIFETIME_CONF BIT(5) 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_LONG_LIFETIME BIT(6) 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_CONCURRENT_INIT BIT(7) 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_NO_TPK_EXPIRATION BIT(8) 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_DECLINE_RESP BIT(9) 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TESTING_IGNORE_AP_PROHIBIT BIT(10) 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtunsigned int tdls_testing = 0; 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TPK_LIFETIME 43200 /* 12 hours */ 40f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt#define TPK_M1_RETRY_COUNT 3 41f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt#define TPK_M1_TIMEOUT 5000 /* in milliseconds */ 42f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt#define TPK_M2_RETRY_COUNT 10 43f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt#define TPK_M2_TIMEOUT 500 /* in milliseconds */ 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_MIC_LEN 16 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TIMEOUT_LEN 4 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_tdls_ftie { 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_type; /* FTIE */ 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_len; 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic_ctrl[2]; 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic[TDLS_MIC_LEN]; 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 Anonce[WPA_NONCE_LEN]; /* Responder Nonce in TDLS */ 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 Snonce[WPA_NONCE_LEN]; /* Initiator Nonce in TDLS */ 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* followed by optional elements */ 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} STRUCT_PACKED; 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_tdls_timeoutie { 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_type; /* Timeout IE */ 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_len; 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 interval_type; 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 value[TDLS_TIMEOUT_LEN]; 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} STRUCT_PACKED; 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_tdls_lnkid { 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_type; /* Link Identifier IE */ 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_len; 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 bssid[ETH_ALEN]; 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 init_sta[ETH_ALEN]; 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 resp_sta[ETH_ALEN]; 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} STRUCT_PACKED; 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* TDLS frame headers as per IEEE Std 802.11z-2010 */ 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_tdls_frame { 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 payloadtype; /* IEEE80211_TDLS_RFTYPE */ 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 category; /* Category */ 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action; /* Action (enum tdls_frame_type) */ 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} STRUCT_PACKED; 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_add_tdls_timeoutie(u8 *pos, u8 *ie, size_t ie_len, u32 tsecs); 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_retry_timeout(void *eloop_ctx, void *timeout_ctx); 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_peer_free(struct wpa_sm *sm, struct wpa_tdls_peer *peer); 84d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Duttstatic void wpa_tdls_disable_peer_link(struct wpa_sm *sm, 85d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt struct wpa_tdls_peer *peer); 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_MAX_IE_LEN 80 891f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt#define IEEE80211_MAX_SUPP_RATES 32 901f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_tdls_peer { 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *next; 938da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt unsigned int reconfig_key:1; 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int initiator; /* whether this end was initiator for TDLS setup */ 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 addr[ETH_ALEN]; /* other end MAC address */ 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 inonce[WPA_NONCE_LEN]; /* Initiator Nonce */ 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 rnonce[WPA_NONCE_LEN]; /* Responder Nonce */ 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 rsnie_i[TDLS_MAX_IE_LEN]; /* Initiator RSN IE */ 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t rsnie_i_len; 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 rsnie_p[TDLS_MAX_IE_LEN]; /* Peer RSN IE */ 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t rsnie_p_len; 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int cipher; /* Selected cipher (WPA_CIPHER_*) */ 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken; 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct tpk { 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 kck[16]; /* TPK-KCK */ 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 tk[16]; /* TPK-TK; assuming only CCMP will be used */ 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } tpk; 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tpk_set; 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tpk_success; 11273b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt int tpk_in_progress; 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct tpk_timer { 1158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dest[ETH_ALEN]; 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int count; /* Retry Count */ 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int timer; /* Timeout in milliseconds */ 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action_code; /* TDLS frame type */ 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dialog_token; 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status_code; 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int buf_len; /* length of TPK message for retransmission */ 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf; /* buffer for TPK message */ 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } sm_tmr; 1241f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1251f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt u16 capability; 1261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; 1281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt size_t supp_rates_len; 129f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 130f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt struct ieee80211_ht_capabilities *ht_capabilities; 13133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt struct ieee80211_vht_capabilities *vht_capabilities; 132f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 133f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt u8 qos_info; 134f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 13551b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt u16 aid; 13651b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt 137f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt u8 *ext_capab; 138f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt size_t ext_capab_len; 139344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 140344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt u8 *supp_channels; 141344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt size_t supp_channels_len; 142344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 143344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt u8 *supp_oper_classes; 144344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt size_t supp_oper_classes_len; 1458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_get_privacy(struct wpa_sm *sm) 1498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Get info needed from supplicant to check if the current BSS supports 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * security. Other than OPEN mode, rest are considered secured 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * WEP/WPA/WPA2 hence TDLS frames are processed for TPK handshake. 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return sm->pairwise_cipher != WPA_CIPHER_NONE; 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_add_ie(u8 *pos, const u8 *ie, size_t ie_len) 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ie, ie_len); 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos + ie_len; 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_del_key(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_sm_set_key(sm, WPA_ALG_NONE, peer->addr, 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0, 0, NULL, 0, NULL, 0) < 0) { 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: Failed to delete TPK-TK from " 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "the driver"); 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_set_key(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 key_len; 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 rsc[6]; 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum wpa_alg alg; 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(rsc, 0, 6); 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (peer->cipher) { 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WPA_CIPHER_CCMP: 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt alg = WPA_ALG_CCMP; 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_len = 16; 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WPA_CIPHER_NONE: 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Pairwise Cipher Suite: " 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "NONE - do not use pairwise keys"); 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: Unsupported pairwise cipher %d", 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise_cipher); 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_sm_set_key(sm, alg, peer->addr, -1, 1, 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsc, sizeof(rsc), peer->tpk.tk, key_len) < 0) { 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: Failed to set TPK to the " 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "driver"); 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_msg(struct wpa_sm *sm, const u8 *dst, 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action_code, u8 dialog_token, 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status_code, const u8 *buf, size_t len) 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_sm_send_tdls_mgmt(sm, dst, action_code, dialog_token, 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status_code, buf, len); 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_tpk_send(struct wpa_sm *sm, const u8 *dest, u8 action_code, 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dialog_token, u16 status_code, 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *msg, size_t msg_len) 2248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK send dest=" MACSTR " action_code=%u " 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "dialog_token=%u status_code=%u msg_len=%u", 2298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dest), action_code, dialog_token, status_code, 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (unsigned int) msg_len); 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_send_tpk_msg(sm, dest, action_code, dialog_token, 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status_code, msg, msg_len)) { 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to send message " 2358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(action_code=%u)", action_code); 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (action_code == WLAN_TDLS_SETUP_CONFIRM || 2401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt action_code == WLAN_TDLS_TEARDOWN || 2411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt action_code == WLAN_TDLS_DISCOVERY_REQUEST || 2421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt action_code == WLAN_TDLS_DISCOVERY_RESPONSE) 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; /* No retries */ 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, dest, ETH_ALEN) == 0) 2478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 2488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching entry found for " 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "retry " MACSTR, MAC2STR(dest)); 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 258f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt if (action_code == WLAN_TDLS_SETUP_RESPONSE) { 259f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.count = TPK_M2_RETRY_COUNT; 260f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.timer = TPK_M2_TIMEOUT; 261f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt } else { 262f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.count = TPK_M1_RETRY_COUNT; 263f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.timer = TPK_M1_TIMEOUT; 264f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt } 2658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Copy message to resend on timeout */ 2678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->sm_tmr.dest, dest, ETH_ALEN); 2688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code = action_code; 2698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.dialog_token = dialog_token; 2708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.status_code = status_code; 2718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf_len = msg_len; 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(peer->sm_tmr.buf); 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf = os_malloc(msg_len); 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->sm_tmr.buf == NULL) 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->sm_tmr.buf, msg, msg_len); 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Retry timeout registered " 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(action_code=%u)", action_code); 280f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt eloop_register_timeout(peer->sm_tmr.timer / 1000, 281f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt (peer->sm_tmr.timer % 1000) * 1000, 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout, sm, peer); 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int wpa_tdls_do_teardown(struct wpa_sm *sm, struct wpa_tdls_peer *peer, 2886a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt u16 reason_code) 2891f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 2901f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int ret; 2911f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 2926a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt ret = wpa_tdls_send_teardown(sm, peer->addr, reason_code); 2936a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt /* disable the link after teardown was sent */ 294d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 2951f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 2961f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return ret; 2971f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 2981f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 2991f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_retry_timeout(void *eloop_ctx, void *timeout_ctx) 3018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm = eloop_ctx; 3048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer = timeout_ctx; 3058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->sm_tmr.count) { 3078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.count--; 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Retrying sending of message " 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(action_code=%u)", 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code); 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->sm_tmr.buf == NULL) { 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No retry buffer available " 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "for action_code=%u", 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code); 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer); 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* resend TPK Handshake Message to Peer */ 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_send_tpk_msg(sm, peer->sm_tmr.dest, 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code, 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.dialog_token, 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.status_code, 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf, 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf_len)) { 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to retry " 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "transmission"); 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 334f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt eloop_register_timeout(peer->sm_tmr.timer / 1000, 335f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt (peer->sm_tmr.timer % 1000) * 1000, 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout, sm, peer); 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending Teardown Request"); 3411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_tdls_do_teardown(sm, peer, 3426a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 3438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_retry_timeout_cancel(struct wpa_sm *sm, 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer, 3498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action_code) 3508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (action_code == peer->sm_tmr.action_code) { 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Retry timeout cancelled for " 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "action_code=%u", action_code); 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Cancel Timeout registered */ 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* free all resources meant for retry */ 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(peer->sm_tmr.buf); 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf = NULL; 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.count = 0; 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.timer = 0; 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf_len = 0; 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code = 0xff; 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Error in cancelling retry timeout " 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Unknown action_code=%u)", action_code); 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_generate_tpk(struct wpa_tdls_peer *peer, 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *own_addr, const u8 *bssid) 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 key_input[SHA256_MAC_LEN]; 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *nonce[2]; 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t len[2]; 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 data[3 * ETH_ALEN]; 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* IEEE Std 802.11z-2010 8.5.9.1: 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TPK-Key-Input = SHA-256(min(SNonce, ANonce) || max(SNonce, ANonce)) 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len[0] = WPA_NONCE_LEN; 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len[1] = WPA_NONCE_LEN; 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->inonce, peer->rnonce, WPA_NONCE_LEN) < 0) { 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[0] = peer->inonce; 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[1] = peer->rnonce; 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[0] = peer->rnonce; 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[1] = peer->inonce; 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: min(Nonce)", nonce[0], WPA_NONCE_LEN); 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: max(Nonce)", nonce[1], WPA_NONCE_LEN); 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sha256_vector(2, nonce, len, key_input); 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: TPK-Key-Input", 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_input, SHA256_MAC_LEN); 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TPK-Key-Data = KDF-N_KEY(TPK-Key-Input, "TDLS PMK", 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * min(MAC_I, MAC_R) || max(MAC_I, MAC_R) || BSSID || N_KEY) 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TODO: is N_KEY really included in KDF Context and if so, in which 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * presentation format (little endian 16-bit?) is it used? It gets 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * added by the KDF anyway.. 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(own_addr, peer->addr, ETH_ALEN) < 0) { 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data, own_addr, ETH_ALEN); 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data + ETH_ALEN, peer->addr, ETH_ALEN); 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data, peer->addr, ETH_ALEN); 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data + ETH_ALEN, own_addr, ETH_ALEN); 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data + 2 * ETH_ALEN, bssid, ETH_ALEN); 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: KDF Context", data, sizeof(data)); 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sha256_prf(key_input, SHA256_MAC_LEN, "TDLS PMK", data, sizeof(data), 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &peer->tpk, sizeof(peer->tpk)); 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: TPK-KCK", 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk.kck, sizeof(peer->tpk.kck)); 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: TPK-TK", 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk.tk, sizeof(peer->tpk.tk)); 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk_set = 1; 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_ftie_mic - Calculate TDLS FTIE MIC 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @kck: TPK-KCK 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @lnkid: Pointer to the beginning of Link Identifier IE 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @rsnie: Pointer to the beginning of RSN IE used for handshake 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @timeoutie: Pointer to the beginning of Timeout IE used for handshake 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ftie: Pointer to the beginning of FT IE 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @mic: Pointer for writing MIC 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Calculate MIC for TDLS frame. 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_ftie_mic(const u8 *kck, u8 trans_seq, const u8 *lnkid, 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *rsnie, const u8 *timeoutie, 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ftie, u8 *mic) 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf, *pos; 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *_ftie; 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_lnkid *_lnkid; 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret; 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int len = 2 * ETH_ALEN + 1 + 2 + lnkid[1] + 2 + rsnie[1] + 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2 + timeoutie[1] + 2 + ftie[1]; 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = os_zalloc(len); 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!buf) { 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: No memory for MIC calculation"); 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _lnkid = (const struct wpa_tdls_lnkid *) lnkid; 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 1) TDLS initiator STA MAC address */ 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, _lnkid->init_sta, ETH_ALEN); 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 2) TDLS responder STA MAC address */ 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, _lnkid->resp_sta, ETH_ALEN); 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3) Transaction Sequence number */ 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = trans_seq; 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4) Link Identifier IE */ 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, lnkid, 2 + lnkid[1]); 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + lnkid[1]; 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 5) RSN IE */ 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, rsnie, 2 + rsnie[1]); 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + rsnie[1]; 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6) Timeout Interval IE */ 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, timeoutie, 2 + timeoutie[1]); 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + timeoutie[1]; 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 7) FTIE, with the MIC field of the FTIE set to 0 */ 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ftie, 2 + ftie[1]); 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie = (struct wpa_tdls_ftie *) pos; 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(_ftie->mic, 0, TDLS_MIC_LEN); 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + ftie[1]; 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Data for FTIE MIC", buf, pos - buf); 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: KCK", kck, 16); 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = omac1_aes_128(kck, buf, pos - buf, mic); 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(buf); 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE MIC", mic, 16); 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_key_mic_teardown - Calculate TDLS FTIE MIC for Teardown frame 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @kck: TPK-KCK 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @trans_seq: Transaction Sequence Number (4 - Teardown) 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @rcode: Reason code for Teardown 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dtoken: Dialog Token used for that particular link 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @lnkid: Pointer to the beginning of Link Identifier IE 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ftie: Pointer to the beginning of FT IE 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @mic: Pointer for writing MIC 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Calculate MIC for TDLS frame. 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_key_mic_teardown(const u8 *kck, u8 trans_seq, u16 rcode, 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken, const u8 *lnkid, 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ftie, u8 *mic) 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf, *pos; 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *_ftie; 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret; 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int len; 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lnkid == NULL) 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = 2 + lnkid[1] + sizeof(rcode) + sizeof(dtoken) + 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(trans_seq) + 2 + ftie[1]; 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = os_zalloc(len); 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!buf) { 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: No memory for MIC calculation"); 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 1) Link Identifier IE */ 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, lnkid, 2 + lnkid[1]); 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + lnkid[1]; 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 2) Reason Code */ 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, rcode); 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(rcode); 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3) Dialog token */ 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = dtoken; 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4) Transaction Sequence number */ 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = trans_seq; 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 7) FTIE, with the MIC field of the FTIE set to 0 */ 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ftie, 2 + ftie[1]); 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie = (struct wpa_tdls_ftie *) pos; 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(_ftie->mic, 0, TDLS_MIC_LEN); 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + ftie[1]; 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Data for FTIE MIC", buf, pos - buf); 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: KCK", kck, 16); 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = omac1_aes_128(kck, buf, pos - buf, mic); 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(buf); 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE MIC", mic, 16); 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_supplicant_verify_tdls_mic(u8 trans_seq, 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer, 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *lnkid, const u8 *timeoutie, 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_ftie *ftie) 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic[16]; 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->tpk_set) { 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_ftie_mic(peer->tpk.kck, trans_seq, lnkid, 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p, timeoutie, (u8 *) ftie, 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mic); 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(mic, ftie->mic, 16) != 0) { 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid MIC in FTIE - " 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "dropping packet"); 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Received MIC", 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->mic, 16); 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Calculated MIC", 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mic, 16); 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: Could not verify TDLS MIC, " 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK not set - dropping packet"); 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_supplicant_verify_tdls_mic_teardown( 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 trans_seq, u16 rcode, u8 dtoken, struct wpa_tdls_peer *peer, 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *lnkid, const struct wpa_tdls_ftie *ftie) 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic[16]; 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->tpk_set) { 5838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_key_mic_teardown(peer->tpk.kck, trans_seq, rcode, 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dtoken, lnkid, (u8 *) ftie, mic); 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(mic, ftie->mic, 16) != 0) { 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid MIC in Teardown - " 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "dropping packet"); 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Could not verify TDLS Teardown " 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "MIC, TPK not set - dropping packet"); 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_timeout(void *eloop_ctx, void *timeout_ctx) 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm = eloop_ctx; 6028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer = timeout_ctx; 6038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * On TPK lifetime expiration, we have an option of either tearing down 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the direct link or trying to re-initiate it. The selection of what 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * to do is not strictly speaking controlled by our role in the expired 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * link, but for now, use that to select whether to renew or tear down 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the link. 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->initiator) { 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime expired for " MACSTR 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " - try to renew", MAC2STR(peer->addr)); 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_start(sm, peer->addr); 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime expired for " MACSTR 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " - tear down", MAC2STR(peer->addr)); 6191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_tdls_do_teardown(sm, peer, 6206a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_peer_free(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Clear state for peer " MACSTR, 6288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer->addr)); 6298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_timeout, sm, peer); 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 6318da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 0; 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 0; 63373b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 0; 6348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(peer->sm_tmr.buf); 6358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf = NULL; 636f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_free(peer->ht_capabilities); 637f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ht_capabilities = NULL; 63833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt os_free(peer->vht_capabilities); 63933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt peer->vht_capabilities = NULL; 640f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_free(peer->ext_capab); 641f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ext_capab = NULL; 642344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_channels); 643344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels = NULL; 644344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_oper_classes); 645344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes = NULL; 6468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = peer->rsnie_p_len = 0; 6478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = 0; 6488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk_set = peer->tpk_success = 0; 6498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&peer->tpk, 0, sizeof(peer->tpk)); 6508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(peer->inonce, 0, WPA_NONCE_LEN); 6518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(peer->rnonce, 0, WPA_NONCE_LEN); 6528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_linkid(struct wpa_sm *sm, struct wpa_tdls_peer *peer, 6568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid) 6578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid->ie_type = WLAN_EID_LINK_ID; 6598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid->ie_len = 3 * ETH_ALEN; 6608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->bssid, sm->bssid, ETH_ALEN); 6618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->initiator) { 6628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->init_sta, sm->own_addr, ETH_ALEN); 6638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->resp_sta, peer->addr, ETH_ALEN); 6648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 6658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->init_sta, peer->addr, ETH_ALEN); 6668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->resp_sta, sm->own_addr, ETH_ALEN); 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6711f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint wpa_tdls_send_teardown(struct wpa_sm *sm, const u8 *addr, u16 reason_code) 6728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 6748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 6758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid lnkid; 6768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dialog_token; 6778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos; 6788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 6798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6801f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Find the node and free from the list */ 6848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 6878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching entry found for " 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown " MACSTR, MAC2STR(addr)); 6928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 6938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dialog_token = peer->dtoken; 6968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS Teardown for " MACSTR, 6988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(addr)); 6998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = 0; 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm) && peer->tpk_set && peer->tpk_success) { 7028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* To add FTIE for Teardown request and compute MIC */ 7038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen += sizeof(*ftie); 7048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 7058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) 7068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen += 170; 7078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 7088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(ielen + 1); 7118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) 7128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 7138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 7148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 71551b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt if (!wpa_tdls_get_privacy(sm) || !peer->tpk_set || !peer->tpk_success) 7168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 7178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 7198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 7208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Using the recent nonce which should be for CONFIRM frame */ 7218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Anonce, peer->rnonce, WPA_NONCE_LEN); 7228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 7238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 7248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 7258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 7268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 7278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 7288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 7298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 7308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 7318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 7321f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt pos += 168; 7338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 7358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE for TDLS Teardown handshake", 7361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt (u8 *) ftie, pos - (u8 *) ftie); 7378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* compute MIC before sending */ 7398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_linkid(sm, peer, &lnkid); 7408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_key_mic_teardown(peer->tpk.kck, 4, reason_code, 7418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dialog_token, (u8 *) &lnkid, (u8 *) ftie, 7428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->mic); 7438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ies: 7458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: register for a Timeout handler, if Teardown is not received at 7468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the other end, then try again another time */ 7478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* request driver to send Teardown using this FTIE */ 7498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_send(sm, addr, WLAN_TDLS_TEARDOWN, 0, 7504b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt reason_code, rbuf, pos - rbuf); 7518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 7528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* clear the Peerkey statemachine */ 7548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 7558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 7578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7601f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint wpa_tdls_teardown_link(struct wpa_sm *sm, const u8 *addr, u16 reason_code) 7611f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 7621f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 7631f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 7641f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 7651f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 7661f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 7671f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 7681f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 7691f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 7701f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 7711f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 7721f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peer == NULL) { 7731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Could not find peer " MACSTR 7741f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt " for link Teardown", MAC2STR(addr)); 7751f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 7761f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 7771f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 7781f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (!peer->tpk_success) { 7791f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Peer " MACSTR 7801f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt " not connected - cannot Teardown link", MAC2STR(addr)); 7811f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 7821f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 7831f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 7846a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt return wpa_tdls_do_teardown(sm, peer, reason_code); 7851f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 7861f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 7871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 78838ffd8879e7990491033bf20568212e8c3472b48Sunil Duttstatic void wpa_tdls_disable_peer_link(struct wpa_sm *sm, 78938ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt struct wpa_tdls_peer *peer) 79038ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt{ 79138ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, peer->addr); 79238ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_peer_free(sm, peer); 79338ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt} 79438ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt 79538ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt 7961f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtvoid wpa_tdls_disable_link(struct wpa_sm *sm, const u8 *addr) 7971f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 7981f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 7991f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8001f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 8011f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 8021f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 8031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 8041f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 80538ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt if (peer) 80638ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 8071f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 8081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 810e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidtconst char * wpa_tdls_get_link_status(struct wpa_sm *sm, const u8 *addr) 811e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt{ 812e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt struct wpa_tdls_peer *peer; 813e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 814e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 815e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "disabled"; 816e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 817e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 818e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 819e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt break; 820e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt } 821e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 822e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (peer == NULL) 823e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "peer does not exist"; 824e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 825e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (!peer->tpk_success) 826e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "peer not connected"; 827e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 828e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "connected"; 829e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt} 830e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 831e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 8328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_recv_teardown(struct wpa_sm *sm, const u8 *src_addr, 8338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 8348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 8358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer = NULL; 8368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 8378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 8388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 8398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 reason_code; 8408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 8418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 8428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Find the node and free from the list */ 8448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 8458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, src_addr, ETH_ALEN) == 0) 8468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 8478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 8508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching entry found for " 8518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown " MACSTR, MAC2STR(src_addr)); 8528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 8538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 8568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 8578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt reason_code = WPA_GET_LE16(pos); 8598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 8608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS Teardown Request from " MACSTR 8628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " (reason code %u)", MAC2STR(src_addr), reason_code); 8638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (pos - buf); /* start of IE in buf */ 8658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies((const u8 *) pos, ielen, &kde) < 0) { 8668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse IEs in Teardown"); 8678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 8688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 8718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Link Identifier IE in TDLS " 8728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown"); 8738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 8748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 8768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm) || !peer->tpk_set || !peer->tpk_success) 8788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ftie; 8798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie)) { 8818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE in TDLS Teardown"); 8828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 8838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 8868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Process MIC check to see if TDLS Teardown is right */ 8888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_verify_tdls_mic_teardown(4, reason_code, 8898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dtoken, peer, 8908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) lnkid, ftie) < 0) { 8918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: MIC failure for TDLS " 8928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown Request from " MACSTR, MAC2STR(src_addr)); 8938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 8948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 8958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ftie: 8978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 8988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Request the driver to disable the direct link and clear associated 8998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * keys. 9008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 90138ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 9028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 9038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 9078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_send_error - To send suitable TDLS status response with 9088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * appropriate status code mentioning reason for error/failure. 9098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dst - MAC addr of Peer station 9108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @tdls_action - TDLS frame type for which error code is sent 9118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @status - status code mentioning reason 9128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 9138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_error(struct wpa_sm *sm, const u8 *dst, 9158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 tdls_action, u8 dialog_token, u16 status) 9168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending error to " MACSTR 9188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " (action=%u status=%u)", 9198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dst), tdls_action, status); 9208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_tdls_tpk_send(sm, dst, tdls_action, dialog_token, status, 9218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt NULL, 0); 9228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9251f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic struct wpa_tdls_peer * 9264b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidtwpa_tdls_add_peer(struct wpa_sm *sm, const u8 *addr, int *existing) 9271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 9281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 9291f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 9304b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (existing) 9314b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt *existing = 0; 9324b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 9334b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) { 9344b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (existing) 9354b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt *existing = 1; 9364b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return peer; /* re-use existing entry */ 9374b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt } 9384b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt } 9394b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt 9401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Creating peer entry for " MACSTR, 9411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt MAC2STR(addr)); 9421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 9431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer = os_zalloc(sizeof(*peer)); 9441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peer == NULL) 9451f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return NULL; 9461f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 9471f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt os_memcpy(peer->addr, addr, ETH_ALEN); 9481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer->next = sm->tdls; 9491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls = peer; 9501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 9511f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return peer; 9521f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 9531f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 9541f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 9558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_m1(struct wpa_sm *sm, 9568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer) 9578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buf_len; 9598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie timeoutie; 9608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 rsn_capab; 9618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 9628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos, *count_pos; 9638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 count; 9648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ie_hdr *hdr; 965d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt int status; 9668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 9688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No security used on the link"); 9698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = 0; 9708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsnie; 9718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 9748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TPK Handshake Message 1: 9758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * FTIE: ANonce=0, SNonce=initiator nonce MIC=0, DataKDs=(RSNIE_I, 9768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Timeout Interval IE)) 9778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 9788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Filling RSN IE */ 9808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) peer->rsnie_i; 9818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->elem_id = WLAN_EID_RSN; 9828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->version, RSN_VERSION); 9838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (hdr + 1); 9858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED); 9868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 9878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count_pos = pos; 9888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 9898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count = 0; 9918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 9938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * AES-CCMP is the default Encryption preferred for TDLS, so 9948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * RSN IE is filled only with CCMP CIPHER 9958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Note: TKIP is not used to encrypt TDLS link. 9968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 9978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Regardless of the cipher used on the AP connection, select CCMP 9988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * here. 9998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 10008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_CCMP); 10018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 10028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count++; 10038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(count_pos, count); 10058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 1); 10078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 10088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE); 10098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 10108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab = WPA_CAPABILITY_PEERKEY_ENABLED; 10128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab |= RSN_NUM_REPLAY_COUNTERS_16 << 2; 10138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 10148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_ALT_RSN_IE) { 10158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Use alternative RSN IE for " 10168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "testing"); 10178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab = WPA_CAPABILITY_PEERKEY_ENABLED; 10188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 10208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, rsn_capab); 10218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 10228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 10238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_ALT_RSN_IE) { 10248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Number of PMKIDs */ 10258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0x00; 10268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0x00; 10278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 10298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->len = (pos - peer->rsnie_i) - 2; 10318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = pos - peer->rsnie_i; 10328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE for TPK handshake", 10338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i, peer->rsnie_i_len); 10348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsnie: 10368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len = 0; 10378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) 10388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += peer->rsnie_i_len + sizeof(struct wpa_tdls_ftie) + 10398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct wpa_tdls_timeoutie); 10408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 10418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm) && 10428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (tdls_testing & TDLS_TESTING_LONG_FRAME)) 10438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += 170; 10448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_DIFF_BSSID) 10458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += sizeof(struct wpa_tdls_lnkid); 10468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 10478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(buf_len + 1); 10488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) { 10498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 10508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 10538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 10558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 10568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Initiator RSN IE */ 10588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_ie(pos, peer->rsnie_i, peer->rsnie_i_len); 10598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 10618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 10628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 10638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_get_random(peer->inonce, WPA_NONCE_LEN)) { 10658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, 10668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TDLS: Failed to get random data for initiator Nonce"); 10678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 10688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 10698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 10708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Initiator Nonce for TPK handshake", 10728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->inonce, WPA_NONCE_LEN); 10738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 10748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE for TPK Handshake M1", 10768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) ftie, sizeof(struct wpa_tdls_ftie)); 10778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 10798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 10818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 10828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 10838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 10848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 10858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 10868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 10878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 168; 10888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 10908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 10928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = TPK_LIFETIME; 10938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 10948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_SHORT_LIFETIME) { 10958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use short TPK " 10968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime"); 10978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = 301; 10988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_LIFETIME) { 11008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use long TPK " 11018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime"); 11028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = 0xffffffff; 11038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_tdls_timeoutie(pos, (u8 *) &timeoutie, 11068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(timeoutie), peer->lifetime); 11078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds", peer->lifetime); 11088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ies: 11108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_DIFF_BSSID) { 11138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use incorrect BSSID in " 11148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Link Identifier"); 11158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *l = (struct wpa_tdls_lnkid *) pos; 11168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_linkid(sm, peer, l); 11178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt l->bssid[5] ^= 0x01; 11188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*l); 11198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Setup Request / TPK " 11238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Handshake Message 1 (peer " MACSTR ")", 11248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer->addr)); 11258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1126d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt status = wpa_tdls_tpk_send(sm, peer->addr, WLAN_TDLS_SETUP_REQUEST, 1127d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt 1, 0, rbuf, pos - rbuf); 11288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 11298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1130d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt return status; 11318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_m2(struct wpa_sm *sm, 11358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const unsigned char *src_addr, u8 dtoken, 11368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid, 11378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_peer *peer) 11388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos; 11408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buf_len; 11418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 11428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie timeoutie; 11438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 1144d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt int status; 11458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len = 0; 11478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) { 11488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE, FTIE(Initiator Nonce, Responder Nonce), 11498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Lifetime */ 11508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += peer->rsnie_i_len + sizeof(struct wpa_tdls_ftie) + 11518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct wpa_tdls_timeoutie); 11528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) 11548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += 170; 11558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(buf_len + 1); 11598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) 11608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 11628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 11648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 11658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE */ 11678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_ie(pos, peer->rsnie_p, peer->rsnie_p_len); 11688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 11708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 11718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: ftie->mic_control to set 2-RESPONSE */ 11728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Anonce, peer->rnonce, WPA_NONCE_LEN); 11738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 11748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 11758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE for TPK M2", 11768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) ftie, sizeof(*ftie)); 11778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 11798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 11828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 11838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 11848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 11858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 11868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 11878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 168; 11888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 11928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = peer->lifetime; 11938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_WRONG_LIFETIME_RESP) { 11958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use wrong TPK " 11968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime in response"); 11978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime++; 11988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_tdls_timeoutie(pos, (u8 *) &timeoutie, 12018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(timeoutie), lifetime); 12028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds from initiator", 12038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 12048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* compute MIC before sending */ 12068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_ftie_mic(peer->tpk.kck, 2, (u8 *) lnkid, peer->rsnie_p, 12078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &timeoutie, (u8 *) ftie, ftie->mic); 12088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ies: 1210d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt status = wpa_tdls_tpk_send(sm, src_addr, WLAN_TDLS_SETUP_RESPONSE, 1211d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt dtoken, 0, rbuf, pos - rbuf); 12128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 12138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1214d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt return status; 12158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_m3(struct wpa_sm *sm, 12198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const unsigned char *src_addr, u8 dtoken, 12208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid, 12218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_peer *peer) 12228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos; 12248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buf_len; 12258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 12268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie timeoutie; 12278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 1228d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt int status; 12298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len = 0; 12318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) { 12328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE, FTIE(Initiator Nonce, Responder Nonce), 12338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Lifetime */ 12348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += peer->rsnie_i_len + sizeof(struct wpa_tdls_ftie) + 12358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct wpa_tdls_timeoutie); 12368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 12378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) 12388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += 170; 12398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(buf_len + 1); 12438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) 12448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 12468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 12488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 12498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE */ 12518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_ie(pos, peer->rsnie_p, peer->rsnie_p_len); 12528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 12548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 12558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /*TODO: ftie->mic_control to set 3-CONFIRM */ 12568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Anonce, peer->rnonce, WPA_NONCE_LEN); 12578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 12588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 12598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 12618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 12638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 12648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 12658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 12668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 12678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 12688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 12698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 168; 12708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 12748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = peer->lifetime; 12758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 12768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_WRONG_LIFETIME_CONF) { 12778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use wrong TPK " 12788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime in confirm"); 12798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime++; 12808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_tdls_timeoutie(pos, (u8 *) &timeoutie, 12838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(timeoutie), lifetime); 12848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds", 12858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 12868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* compute MIC before sending */ 12888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_ftie_mic(peer->tpk.kck, 3, (u8 *) lnkid, peer->rsnie_p, 12898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &timeoutie, (u8 *) ftie, ftie->mic); 12908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ies: 1292d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt status = wpa_tdls_tpk_send(sm, src_addr, WLAN_TDLS_SETUP_CONFIRM, 1293d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt dtoken, 0, rbuf, pos - rbuf); 12948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 12958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1296d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt return status; 12978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13001f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int wpa_tdls_send_discovery_response(struct wpa_sm *sm, 13011f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer, 13021f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt u8 dialog_token) 13031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 13041f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Discovery Response " 13051f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "(peer " MACSTR ")", MAC2STR(peer->addr)); 13061f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13071f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return wpa_tdls_tpk_send(sm, peer->addr, WLAN_TDLS_DISCOVERY_RESPONSE, 13081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt dialog_token, 0, NULL, 0); 13091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 13101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int 13131f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtwpa_tdls_process_discovery_request(struct wpa_sm *sm, const u8 *addr, 13141f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt const u8 *buf, size_t len) 13151f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 13161f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_eapol_ie_parse kde; 13171f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt const struct wpa_tdls_lnkid *lnkid; 13181f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 13191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt size_t min_req_len = sizeof(struct wpa_tdls_frame) + 13201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1 /* dialog token */ + sizeof(struct wpa_tdls_lnkid); 13211f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt u8 dialog_token; 13221f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13231f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discovery Request from " MACSTR, 13241f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt MAC2STR(addr)); 13251f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (len < min_req_len) { 13271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS Discovery Request is too short: " 13281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "%d", (int) len); 13291f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 13301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 13311f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13321f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt dialog_token = buf[sizeof(struct wpa_tdls_frame)]; 13331f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_supplicant_parse_ies(buf + sizeof(struct wpa_tdls_frame) + 1, 13351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt len - (sizeof(struct wpa_tdls_frame) + 1), 13361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt &kde) < 0) 13371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 13381f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13391f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (!kde.lnkid) { 13401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Link ID not found in Discovery " 13411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "Request"); 13421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 13431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 13441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13451f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt lnkid = (const struct wpa_tdls_lnkid *) kde.lnkid; 13461f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13471f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 13481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discovery Request from different " 13491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt " BSS " MACSTR, MAC2STR(lnkid->bssid)); 13501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 13511f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 13521f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13534b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, addr, NULL); 13541f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peer == NULL) 13551f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 13561f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13571f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return wpa_tdls_send_discovery_response(sm, peer, dialog_token); 13581f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 13591f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13601f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13611f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint wpa_tdls_send_discovery_request(struct wpa_sm *sm, const u8 *addr) 13621f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 13631f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 13641f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 13651f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13661f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending Discovery Request to peer " 13671f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt MACSTR, MAC2STR(addr)); 13681f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return wpa_tdls_tpk_send(sm, addr, WLAN_TDLS_DISCOVERY_REQUEST, 13691f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1, 0, NULL, 0); 13701f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 13711f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13721f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int copy_supp_rates(const struct wpa_eapol_ie_parse *kde, 13741f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer) 13751f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 13761f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (!kde->supp_rates) { 13771f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported rates received"); 13781f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 13791f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 1380a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt peer->supp_rates_len = merge_byte_arrays( 1381a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt peer->supp_rates, sizeof(peer->supp_rates), 1382a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt kde->supp_rates + 2, kde->supp_rates_len - 2, 138334af306c42b7ccf956508e7cd23f0ba90606e360Dmitry Shmidt kde->ext_supp_rates ? kde->ext_supp_rates + 2 : NULL, 138434af306c42b7ccf956508e7cd23f0ba90606e360Dmitry Shmidt kde->ext_supp_rates_len - 2); 13851f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 0; 13861f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 13871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13881f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1389f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidtstatic int copy_peer_ht_capab(const struct wpa_eapol_ie_parse *kde, 1390f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt struct wpa_tdls_peer *peer) 1391f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt{ 1392f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!kde->ht_capabilities || 1393f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt kde->ht_capabilities_len < 1394f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt sizeof(struct ieee80211_ht_capabilities) ) { 1395f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported ht capabilities " 1396f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt "received"); 1397f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1398f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1399f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1400f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!peer->ht_capabilities) { 1401f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ht_capabilities = 1402f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_zalloc(sizeof(struct ieee80211_ht_capabilities)); 1403f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (peer->ht_capabilities == NULL) 1404f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return -1; 1405f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1406f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1407f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_memcpy(peer->ht_capabilities, kde->ht_capabilities, 1408f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt sizeof(struct ieee80211_ht_capabilities)); 1409f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer HT capabilities", 1410f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt (u8 *) peer->ht_capabilities, 1411f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt sizeof(struct ieee80211_ht_capabilities)); 1412f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1413f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1414f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt} 1415f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1416f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 141733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidtstatic int copy_peer_vht_capab(const struct wpa_eapol_ie_parse *kde, 141833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt struct wpa_tdls_peer *peer) 141933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt{ 142033e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (!kde->vht_capabilities || 142133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt kde->vht_capabilities_len < 142233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt sizeof(struct ieee80211_vht_capabilities) ) { 142333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported vht capabilities " 142433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt "received"); 142533e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt return 0; 142633e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt } 142733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 142833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (!peer->vht_capabilities) { 142933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt peer->vht_capabilities = 143033e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt os_zalloc(sizeof(struct ieee80211_vht_capabilities)); 143133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (peer->vht_capabilities == NULL) 143233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt return -1; 143333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt } 143433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 143533e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt os_memcpy(peer->vht_capabilities, kde->vht_capabilities, 143633e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt sizeof(struct ieee80211_vht_capabilities)); 143733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer VHT capabilities", 143833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt (u8 *) peer->vht_capabilities, 143933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt sizeof(struct ieee80211_vht_capabilities)); 144033e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 144133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt return 0; 144233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt} 144333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 144433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 1445f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidtstatic int copy_peer_ext_capab(const struct wpa_eapol_ie_parse *kde, 1446f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt struct wpa_tdls_peer *peer) 1447f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt{ 1448f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!kde->ext_capab) { 1449f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No extended capabilities " 1450f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt "received"); 1451f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1452f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1453f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1454f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!peer->ext_capab || peer->ext_capab_len < kde->ext_capab_len - 2) { 1455f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt /* Need to allocate buffer to fit the new information */ 1456f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_free(peer->ext_capab); 1457f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ext_capab = os_zalloc(kde->ext_capab_len - 2); 1458f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (peer->ext_capab == NULL) 1459f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return -1; 1460f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1461f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1462f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ext_capab_len = kde->ext_capab_len - 2; 1463f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_memcpy(peer->ext_capab, kde->ext_capab + 2, peer->ext_capab_len); 1464f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1465f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1466f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt} 1467f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1468f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1469344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidtstatic int copy_peer_supp_channels(const struct wpa_eapol_ie_parse *kde, 1470344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt struct wpa_tdls_peer *peer) 1471344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt{ 1472344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!kde->supp_channels) { 1473344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported channels received"); 1474344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1475344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1476344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1477344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!peer->supp_channels || 1478344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels_len < kde->supp_channels_len) { 1479344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_channels); 1480344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels = os_zalloc(kde->supp_channels_len); 1481344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (peer->supp_channels == NULL) 1482344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return -1; 1483344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1484344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1485344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels_len = kde->supp_channels_len; 1486344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1487344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_memcpy(peer->supp_channels, kde->supp_channels, 1488344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels_len); 1489344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer Supported Channels", 1490344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt (u8 *) peer->supp_channels, peer->supp_channels_len); 1491344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1492344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt} 1493344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1494344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1495344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidtstatic int copy_peer_supp_oper_classes(const struct wpa_eapol_ie_parse *kde, 1496344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt struct wpa_tdls_peer *peer) 1497344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt{ 1498344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!kde->supp_oper_classes) { 1499344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported operating classes received"); 1500344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1501344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1502344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1503344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!peer->supp_oper_classes || 1504344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len < kde->supp_oper_classes_len) { 1505344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_oper_classes); 1506344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes = os_zalloc(kde->supp_oper_classes_len); 1507344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (peer->supp_oper_classes == NULL) 1508344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return -1; 1509344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1510344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1511344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len = kde->supp_oper_classes_len; 1512344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_memcpy(peer->supp_oper_classes, kde->supp_oper_classes, 1513344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len); 1514344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer Supported Operating Classes", 1515344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt (u8 *) peer->supp_oper_classes, 1516344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len); 1517344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1518344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt} 1519344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1520344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 15218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_process_tpk_m1(struct wpa_sm *sm, const u8 *src_addr, 15228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 15238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 15248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 15258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 15268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ie_data ie; 15278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int cipher; 15288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *cpos; 15298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie = NULL; 15308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *timeoutie; 15318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 15328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime = 0; 15338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if 0 15348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ie_hdr *hdr; 15358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos; 15368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 rsn_capab; 15378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 rsn_ver; 15388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 15398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken; 15408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 ielen; 15418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status = WLAN_STATUS_UNSPECIFIED_FAILURE; 15428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tdls_prohibited = sm->tdls_prohibited; 15431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int existing_peer = 0; 15448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 3 + 3) 15468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 15478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cpos = buf; 15498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cpos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 15508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* driver had already verified the frame format */ 15528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dtoken = *cpos++; /* dialog token */ 15538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Dialog Token in TPK M1 %d", dtoken); 15558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15564b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, src_addr, &existing_peer); 15574b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (peer == NULL) 15584b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt goto error; 15591f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 15600ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt /* If found, use existing entry instead of adding a new one; 15610ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * how to handle the case where both ends initiate at the 15620ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * same time? */ 15630ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (existing_peer) { 15640ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (peer->tpk_success) { 15650ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS Setup Request while " 15660ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "direct link is enabled - tear down the " 15670ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "old link first"); 15688b43e82b5aa16d167d3e2696b7827c412b0e0a00Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 15690ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 15700ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt 15710ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt /* 15720ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * An entry is already present, so check if we already sent a 15730ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * TDLS Setup Request. If so, compare MAC addresses and let the 15740ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * STA with the lower MAC address continue as the initiator. 15750ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * The other negotiation is terminated. 15760ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt */ 15770ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (peer->initiator) { 15780ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (os_memcmp(sm->own_addr, src_addr, ETH_ALEN) < 0) { 15790ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discard request " 15800ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "from peer with higher address " 15810ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt MACSTR, MAC2STR(src_addr)); 15820ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt return -1; 15830ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } else { 15840ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Accept request " 15850ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "from peer with lower address " 15860ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt MACSTR " (terminate previously " 15870ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "initiated negotiation", 15880ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt MAC2STR(src_addr)); 15898b43e82b5aa16d167d3e2696b7827c412b0e0a00Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 15900ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 15910ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 15920ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 15930ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt 15941f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* capability information */ 15951f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer->capability = WPA_GET_LE16(cpos); 15961f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt cpos += 2; 15978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 15988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (cpos - buf); /* start of IE in buf */ 15998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies(cpos, ielen, &kde) < 0) { 16008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse IEs in TPK M1"); 16018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 16028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 16058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No valid Link Identifier IE in " 16068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M1"); 16078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 16088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Link ID Received from TPK M1", 16108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.lnkid, kde.lnkid_len); 16118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 16128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 16138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TPK M1 from diff BSS"); 16148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_NOT_IN_SAME_BSS; 16158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 16168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK M1 - TPK initiator " MACSTR, 16198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 16208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16211f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (copy_supp_rates(&kde, peer) < 0) 16221f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto error; 16231f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1624f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ht_capab(&kde, peer) < 0) 1625f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 1626f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 162733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (copy_peer_vht_capab(&kde, peer) < 0) 162833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt goto error; 162933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 1630f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ext_capab(&kde, peer) < 0) 1631f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 1632f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1633344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_channels(&kde, peer) < 0) 1634344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 1635344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1636344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_oper_classes(&kde, peer) < 0) 1637344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 1638344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1639f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->qos_info = kde.qosinfo; 1640f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 164151b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt peer->aid = kde.aid; 164251b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt 16438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 16448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_CONCURRENT_INIT) { 16454b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, src_addr, NULL); 16464b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (peer == NULL) 16474b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt goto error; 16488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing concurrent initiation of " 16498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TDLS setup - send own request"); 16508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 1; 16518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_send_tpk_m1(sm, peer); 16528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((tdls_testing & TDLS_TESTING_IGNORE_AP_PROHIBIT) && 16558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited) { 16568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - ignore AP prohibition " 16578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "on TDLS"); 16588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited = 0; 16598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 16618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_prohibited) { 16638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TDLS prohibited in this BSS"); 16648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_REQUEST_DECLINED; 16658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 16668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 16698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie) { 16708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: RSN IE in TPK M1 while " 16718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "security is disabled"); 16728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_SECURITY_DISABLED; 16738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 16748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn; 16768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie) || 16798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie == NULL) { 16808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE or RSN IE in TPK M1"); 16818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_PARAMETERS; 16828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 16838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie_len > TDLS_MAX_IE_LEN) { 16868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Too long Initiator RSN IE in " 16878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M1"); 16888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 16898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 16908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_parse_wpa_ie_rsn(kde.rsn_ie, kde.rsn_ie_len, &ie) < 0) { 16938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse RSN IE in TPK M1"); 16948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 16958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 16968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 16978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = ie.pairwise_cipher; 16998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (cipher & WPA_CIPHER_CCMP) { 17008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Using CCMP for direct link"); 17018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = WPA_CIPHER_CCMP; 17028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 17038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No acceptable cipher in TPK M1"); 17048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; 17058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 17068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((ie.capabilities & 17098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (WPA_CAPABILITY_NO_PAIRWISE | WPA_CAPABILITY_PEERKEY_ENABLED)) != 17108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_CAPABILITY_PEERKEY_ENABLED) { 17118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid RSN Capabilities in " 17128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M1"); 17138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSN_IE_CAPAB; 17148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 17158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 17188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.key_lifetime == NULL) { 17198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Key Lifetime IE in TPK M1"); 17208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 17218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 17228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt timeoutie = (struct wpa_tdls_timeoutie *) kde.key_lifetime; 17248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = WPA_GET_LE32(timeoutie->value); 17258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds", lifetime); 17268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime < 300) { 17278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Too short TPK lifetime"); 17288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 17298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 17308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn: 17331f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt#ifdef CONFIG_TDLS_TESTING 17341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (tdls_testing & TDLS_TESTING_CONCURRENT_INIT) { 17351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(sm->own_addr, peer->addr, ETH_ALEN) < 0) { 17361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* 17371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * The request frame from us is going to win, so do not 17381f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * replace information based on this request frame from 17391f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * the peer. 17401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt */ 17411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto skip_rsn_check; 17421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 17431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 17441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 17451f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 17468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 0; /* Need to check */ 17478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dtoken = dtoken; 17488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 17508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = 0; 17518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = 0; 17528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = WPA_CIPHER_NONE; 17538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn_check; 17548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 17578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rsnie_i, kde.rsn_ie, kde.rsn_ie_len); 17588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = kde.rsn_ie_len; 17598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = cipher; 17608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17616102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt if (os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) != 0) { 17626102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt /* 17636102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * There is no point in updating the RNonce for every obtained 17646102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * TPK M1 frame (e.g., retransmission due to timeout) with the 17656102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * same INonce (SNonce in FTIE). However, if the TPK M1 is 17666102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * retransmitted with a different INonce, update the RNonce 17676102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * since this is for a new TDLS session. 17686102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt */ 17696102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt wpa_printf(MSG_DEBUG, 17706102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt "TDLS: New TPK M1 INonce - generate new RNonce"); 17716102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt os_memcpy(peer->inonce, ftie->Snonce, WPA_NONCE_LEN); 17726102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt if (os_get_random(peer->rnonce, WPA_NONCE_LEN)) { 17736102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt wpa_msg(sm->ctx->ctx, MSG_WARNING, 17746102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt "TDLS: Failed to get random data for responder nonce"); 17756102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt wpa_tdls_peer_free(sm, peer); 17766102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt goto error; 17776102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt } 17788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if 0 17818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* get version info from RSNIE received from Peer */ 17828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) kde.rsn_ie; 17838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_ver = WPA_GET_LE16(hdr->version); 17848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* use min(peer's version, out version) */ 17868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rsn_ver > RSN_VERSION) 17878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_ver = RSN_VERSION; 17888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) peer->rsnie_p; 17908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->elem_id = WLAN_EID_RSN; 17928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->version, rsn_ver); 17938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (hdr + 1); 17948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED); 17968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 17978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Include only the selected cipher in pairwise cipher suite */ 17988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 1); 17998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 18008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (cipher == WPA_CIPHER_CCMP) 18018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_CCMP); 18028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 18038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 1); 18058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 18068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE); 18078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 18088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab = WPA_CAPABILITY_PEERKEY_ENABLED; 18108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab |= RSN_NUM_REPLAY_COUNTERS_16 << 2; 18118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, rsn_capab); 18128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 18138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->len = (pos - peer->rsnie_p) - 2; 18158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = pos - peer->rsnie_p; 18168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 18178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* temp fix: validation of RSNIE later */ 18198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rsnie_p, peer->rsnie_i, peer->rsnie_i_len); 18208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = peer->rsnie_i_len; 18218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE for TPK handshake", 18238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p, peer->rsnie_p_len); 18248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = lifetime; 18268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_generate_tpk(peer, sm->own_addr, sm->bssid); 18288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn_check: 18301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* add the peer to the driver as a "setup in progress" peer */ 183151b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt wpa_sm_tdls_peer_addset(sm, peer->addr, 1, 0, 0, NULL, 0, NULL, NULL, 0, 1832344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt NULL, 0, NULL, 0, NULL, 0); 183373b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 1; 18341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 18358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Setup Response / TPK M2"); 18361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_tdls_send_tpk_m2(sm, src_addr, dtoken, lnkid, peer) < 0) { 1837d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 18381f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto error; 18391f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 18408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 18428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterror: 18448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_send_error(sm, src_addr, WLAN_TDLS_SETUP_RESPONSE, dtoken, 18458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 18468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 18478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 18488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18508da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidtstatic int wpa_tdls_enable_link(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 18518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 18528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk_success = 1; 185373b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 0; 18548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_timeout, sm, peer); 18558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) { 18568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime = peer->lifetime; 18578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 18588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Start the initiator process a bit earlier to avoid race 18598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * condition with the responder sending teardown request. 18608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 18618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime > 3 && peer->initiator) 18628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime -= 3; 18638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_register_timeout(lifetime, 0, wpa_tdls_tpk_timeout, 18648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm, peer); 18658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 18668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_NO_TPK_EXPIRATION) { 18678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - disable TPK " 18688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "expiration"); 18698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_timeout, sm, peer); 18708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 18728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1874f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt /* add supported rates, capabilities, and qos_info to the TDLS peer */ 187551b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt if (wpa_sm_tdls_peer_addset(sm, peer->addr, 0, peer->aid, 187651b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt peer->capability, 18778da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->supp_rates, peer->supp_rates_len, 18788da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->ht_capabilities, 18798da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->vht_capabilities, 18808da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->qos_info, peer->ext_capab, 1881344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->ext_capab_len, 1882344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels, 1883344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels_len, 1884344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes, 1885344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len) < 0) 18868da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return -1; 18871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 18888da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt if (peer->reconfig_key && wpa_tdls_set_key(sm, peer) < 0) { 18898da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Could not configure key to the " 18908da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt "driver"); 18918da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return -1; 18928da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 18938da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 0; 18948da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt 18958da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return wpa_sm_tdls_oper(sm, TDLS_ENABLE_LINK, peer->addr); 18968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 18978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_process_tpk_m2(struct wpa_sm *sm, const u8 *src_addr, 19008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 19018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 19028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 19038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 19048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ie_data ie; 19058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int cipher; 19068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 19078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *timeoutie; 19088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 19098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 19108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken; 19118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 19128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 19138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 1914292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt int ret = 0; 19158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Received TDLS Setup Response / TPK M2 " 19178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Peer " MACSTR ")", MAC2STR(src_addr)); 19188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 19198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, src_addr, ETH_ALEN) == 0) 19208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 19218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 19238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching peer found for " 19248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M2: " MACSTR, MAC2STR(src_addr)); 19258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 19268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19270ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (!peer->initiator) { 19280ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt /* 19290ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * This may happen if both devices try to initiate TDLS at the 19300ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * same time and we accept the TPK M1 from the peer in 19310ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * wpa_tdls_process_tpk_m1() and clear our previous state. 19320ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt */ 19330ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_INFO, "TDLS: We were not the initiator, so " 19340ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "ignore TPK M2 from " MACSTR, MAC2STR(src_addr)); 19350ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt return -1; 19360ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 19378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout_cancel(sm, peer, WLAN_TDLS_SETUP_REQUEST); 19388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1939adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt if (len < 3 + 2 + 1) { 1940d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 19418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1942adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt } 1943adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt 19448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 19458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 19468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WPA_GET_LE16(pos); 19478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 /* status code */; 19488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status != WLAN_STATUS_SUCCESS) { 19508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Status code in TPK M2: %u", 19518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 1952d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 19538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 19548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNSPECIFIED_FAILURE; 19578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: need to verify dialog token matches here or in kernel */ 19598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dtoken = *pos++; /* dialog token */ 19608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Dialog Token in TPK M2 %d", dtoken); 19628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1963adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt if (len < 3 + 2 + 1 + 2) { 1964d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 19658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1966adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt } 19671f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 19681f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* capability information */ 19691f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer->capability = WPA_GET_LE16(pos); 19701f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt pos += 2; 19718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (pos - buf); /* start of IE in buf */ 19738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies(pos, ielen, &kde) < 0) { 19748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse IEs in TPK M2"); 19758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 19798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_DECLINE_RESP) { 19808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - decline response"); 19818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_REQUEST_DECLINED; 19828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 19858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 19878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No valid Link Identifier IE in " 19888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M2"); 19898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Link ID Received from TPK M2", 19928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.lnkid, kde.lnkid_len); 19938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 19948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 19968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TPK M2 from different BSS"); 19978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_NOT_IN_SAME_BSS; 19988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 19998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20011f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (copy_supp_rates(&kde, peer) < 0) 20021f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto error; 20031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 2004f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ht_capab(&kde, peer) < 0) 2005f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 2006f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 200733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (copy_peer_vht_capab(&kde, peer) < 0) 200833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt goto error; 200933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 2010f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ext_capab(&kde, peer) < 0) 2011f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 2012f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2013344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_channels(&kde, peer) < 0) 2014344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 2015344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 2016344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_oper_classes(&kde, peer) < 0) 2017344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 2018344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 2019f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->qos_info = kde.qosinfo; 2020f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 202151b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt peer->aid = kde.aid; 202251b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt 20238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 20248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = 0; 20258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = WPA_CIPHER_NONE; 20268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn; 20278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie) || 20308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie == NULL) { 20318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE or RSN IE in TPK M2"); 20328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_PARAMETERS; 20338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 20348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Received from TPK M2", 20368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie, kde.rsn_ie_len); 20378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 20398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * FIX: bitwise comparison of RSN IE is not the correct way of 20408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * validation this. It can be different, but certain fields must 20418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * match. Since we list only a single pairwise cipher in TPK M1, the 20428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * memcmp is likely to work in most cases, though. 20438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 20448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie_len != peer->rsnie_i_len || 20458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(peer->rsnie_i, kde.rsn_ie, peer->rsnie_i_len) != 0) { 20468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: RSN IE in TPK M2 does " 20478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "not match with RSN IE used in TPK M1"); 20488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Sent in TPK M1", 20498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i, peer->rsnie_i_len); 20508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Received from TPK M2", 20518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie, kde.rsn_ie_len); 20528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 20538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 20548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_parse_wpa_ie_rsn(kde.rsn_ie, kde.rsn_ie_len, &ie) < 0) { 20578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse RSN IE in TPK M2"); 20588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 20598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 20608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = ie.pairwise_cipher; 20638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (cipher == WPA_CIPHER_CCMP) { 20648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Using CCMP for direct link"); 20658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = WPA_CIPHER_CCMP; 20668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 20678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No acceptable cipher in TPK M2"); 20688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; 20698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 20708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE Received from TPK M2", 20738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.ftie, sizeof(*ftie)); 20748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 20758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) == 0) { 20778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: FTIE SNonce in TPK M2 does " 20788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "not match with FTIE SNonce used in TPK M1"); 20798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Silently discard the frame */ 20808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 20818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Responder Nonce and RSN IE */ 20848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rnonce, ftie->Anonce, WPA_NONCE_LEN); 20858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rsnie_p, kde.rsn_ie, kde.rsn_ie_len); 20868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = kde.rsn_ie_len; 20878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = cipher; 20888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 20908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.key_lifetime == NULL) { 20918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Key Lifetime IE in TPK M2"); 20928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 20938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 20948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt timeoutie = (struct wpa_tdls_timeoutie *) kde.key_lifetime; 20968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = WPA_GET_LE32(timeoutie->value); 20978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds in TPK M2", 20988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 20998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime != peer->lifetime) { 21008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Unexpected TPK lifetime %u in " 21018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M2 (expected %u)", lifetime, peer->lifetime); 21028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 21038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 21048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_generate_tpk(peer, sm->own_addr, sm->bssid); 21078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Process MIC check to see if TPK M2 is right */ 21098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_verify_tdls_mic(2, peer, (u8 *) lnkid, 21108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) timeoutie, ftie) < 0) { 21118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Discard the frame */ 21128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_del_key(sm, peer); 211338ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 21148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 21158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21178da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt if (wpa_tdls_set_key(sm, peer) < 0) { 21188da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt /* 21198da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * Some drivers may not be able to config the key prior to full 21208da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * STA entry having been configured. 21218da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt */ 21228da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Try to configure TPK again after " 21238da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt "STA entry is complete"); 21248da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 1; 21258da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 21268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn: 21288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dtoken = dtoken; 21298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Setup Confirm / " 21318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK Handshake Message 3"); 2132d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt if (wpa_tdls_send_tpk_m3(sm, src_addr, dtoken, lnkid, peer) < 0) { 2133d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 2134d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt return -1; 2135d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt } 21368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2137292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (!peer->tpk_success) { 2138292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt /* 2139292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * Enable Link only when tpk_success is 0, signifying that this 2140292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * processing of TPK M2 frame is not because of a retransmission 2141292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * during TDLS setup handshake. 2142292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt */ 2143292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt ret = wpa_tdls_enable_link(sm, peer); 2144292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (ret < 0) { 2145292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Could not enable link"); 2146292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_tdls_do_teardown( 2147292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt sm, peer, 2148292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 2149292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt } 21508da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 21518da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return ret; 21528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterror: 21548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_send_error(sm, src_addr, WLAN_TDLS_SETUP_CONFIRM, dtoken, 21558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 2156d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 21578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 21588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 21598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_process_tpk_m3(struct wpa_sm *sm, const u8 *src_addr, 21628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 21638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 21648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 21658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 21668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 21678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *timeoutie; 21688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 21698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 21708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 21718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 21728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 2173292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt int ret = 0; 21748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Received TDLS Setup Confirm / TPK M3 " 21768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Peer " MACSTR ")", MAC2STR(src_addr)); 21778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 21788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, src_addr, ETH_ALEN) == 0) 21798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 21808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 21828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching peer found for " 21838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M3: " MACSTR, MAC2STR(src_addr)); 21848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 21858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout_cancel(sm, peer, WLAN_TDLS_SETUP_RESPONSE); 21878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 3 + 3) 2189adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 21908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 21918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 21928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WPA_GET_LE16(pos); 21948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status != 0) { 21968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Status code in TPK M3: %u", 21978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 2198adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 21998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 /* status code */ + 1 /* dialog token */; 22018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (pos - buf); /* start of IE in buf */ 22038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies((const u8 *) pos, ielen, &kde) < 0) { 22048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse KDEs in TPK M3"); 2205adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 22098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Link Identifier IE in TPK M3"); 2210adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Link ID Received from TPK M3", 22138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) kde.lnkid, kde.lnkid_len); 22148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 22158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 22178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TPK M3 from diff BSS"); 2218adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 22228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn; 22238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie)) { 22258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE in TPK M3"); 2226adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE Received from TPK M3", 22298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.ftie, sizeof(*ftie)); 22308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 22318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie == NULL) { 22338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No RSN IE in TPK M3"); 2234adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Received from TPK M3", 22378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie, kde.rsn_ie_len); 22388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie_len != peer->rsnie_p_len || 22398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(kde.rsn_ie, peer->rsnie_p, peer->rsnie_p_len) != 0) { 22408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: RSN IE in TPK M3 does not match " 22418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "with the one sent in TPK M2"); 2242adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!os_memcmp(peer->rnonce, ftie->Anonce, WPA_NONCE_LEN) == 0) { 22468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: FTIE ANonce in TPK M3 does " 22478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "not match with FTIE ANonce used in TPK M2"); 2248adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) == 0) { 22528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: FTIE SNonce in TPK M3 does not " 22538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "match with FTIE SNonce used in TPK M1"); 2254adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.key_lifetime == NULL) { 22588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Key Lifetime IE in TPK M3"); 2259adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt timeoutie = (struct wpa_tdls_timeoutie *) kde.key_lifetime; 22628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Timeout IE Received from TPK M3", 22638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) timeoutie, sizeof(*timeoutie)); 22648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = WPA_GET_LE32(timeoutie->value); 22658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds in TPK M3", 22668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 22678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime != peer->lifetime) { 22688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Unexpected TPK lifetime %u in " 22698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M3 (expected %u)", lifetime, peer->lifetime); 2270adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_verify_tdls_mic(3, peer, (u8 *) lnkid, 22748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) timeoutie, ftie) < 0) { 22758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_del_key(sm, peer); 2276adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 22778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22798da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt if (wpa_tdls_set_key(sm, peer) < 0) { 22808da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt /* 22818da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * Some drivers may not be able to config the key prior to full 22828da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * STA entry having been configured. 22838da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt */ 22848da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Try to configure TPK again after " 22858da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt "STA entry is complete"); 22868da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 1; 22878da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 22888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn: 2290292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (!peer->tpk_success) { 2291292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt /* 2292292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * Enable Link only when tpk_success is 0, signifying that this 2293292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * processing of TPK M3 frame is not because of a retransmission 2294292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * during TDLS setup handshake. 2295292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt */ 2296292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt ret = wpa_tdls_enable_link(sm, peer); 2297292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (ret < 0) { 2298292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Could not enable link"); 2299292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_tdls_do_teardown( 2300292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt sm, peer, 2301292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 2302292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt } 23038da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 23048da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return ret; 2305adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutterror: 2306d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 2307adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt return -1; 23088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 23098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_add_tdls_timeoutie(u8 *pos, u8 *ie, size_t ie_len, u32 tsecs) 23128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 23138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *lifetime = (struct wpa_tdls_timeoutie *) ie; 23148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(lifetime, 0, ie_len); 23168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime->ie_type = WLAN_EID_TIMEOUT_INTERVAL; 23178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime->ie_len = sizeof(struct wpa_tdls_timeoutie) - 2; 23188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime->interval_type = WLAN_TIMEOUT_KEY_LIFETIME; 23198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE32(lifetime->value, tsecs); 23208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ie, ie_len); 23218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos + ie_len; 23228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 23238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 23268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_start - Initiate TDLS handshake (send TPK Handshake Message 1) 23278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @sm: Pointer to WPA state machine data from wpa_sm_init() 23288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @peer: MAC address of the peer STA 23298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, or -1 on failure 23308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 23318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Send TPK Handshake Message 1 info to driver to start TDLS 23328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * handshake with the peer. 23338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 23348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_tdls_start(struct wpa_sm *sm, const u8 *addr) 23358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 23368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 23378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tdls_prohibited = sm->tdls_prohibited; 23388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23391f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 23408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 23418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 23438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((tdls_testing & TDLS_TESTING_IGNORE_AP_PROHIBIT) && 23448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited) { 23458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - ignore AP prohibition " 23468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "on TDLS"); 23478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited = 0; 23488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 23508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_prohibited) { 23528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS is prohibited in this BSS - " 23538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "reject request to start setup"); 23548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 23558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23574b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, addr, NULL); 23584b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (peer == NULL) 23594b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return -1; 23608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 236173b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt if (peer->tpk_in_progress) { 236273b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt wpa_printf(MSG_DEBUG, "TDLS: Setup is already in progress with the peer"); 236373b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt return 0; 236473b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt } 236573b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt 23668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 1; 23678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23681f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* add the peer to the driver as a "setup in progress" peer */ 236951b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt wpa_sm_tdls_peer_addset(sm, peer->addr, 1, 0, 0, NULL, 0, NULL, NULL, 0, 2370344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt NULL, 0, NULL, 0, NULL, 0); 23711f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 237273b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 1; 237373b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt 23741f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_tdls_send_tpk_m1(sm, peer) < 0) { 2375d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 23761f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 23771f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 23781f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 23791f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 0; 23808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 23818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23834b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidtvoid wpa_tdls_remove(struct wpa_sm *sm, const u8 *addr) 23848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 23858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 23868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 23884b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return; 23898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 23918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 23928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 23938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL || !peer->tpk_success) 23964b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return; 23978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23981f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_external_setup) { 23991f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* 24001f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * Disable previous link to allow renegotiation to be completed 24011f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * on AP path. 24021f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt */ 2403292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_tdls_disable_peer_link(sm, peer); 24041f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 24058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 24068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 24098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_supplicant_rx_tdls - Receive TDLS data frame 24108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 24118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called to receive TDLS (ethertype = 0x890d) data frames. 24128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 24138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_supplicant_rx_tdls(void *ctx, const u8 *src_addr, 24148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 24158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 24168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm = ctx; 24178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_frame *tf; 24188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Received Data frame encapsulation", 24208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf, len); 24218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24221f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) { 24231f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discard message - TDLS disabled " 24241f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "or unsupported by driver"); 24258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 24268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(src_addr, sm->own_addr, ETH_ALEN) == 0) { 24298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discard copy of own message"); 24308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 24318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < sizeof(*tf)) { 24348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Drop too short frame"); 24358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 24368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Check to make sure its a valid encapsulated TDLS frame */ 24398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf = (struct wpa_tdls_frame *) buf; 24408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tf->payloadtype != 2 /* TDLS_RFTYPE */ || 24418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf->category != WLAN_ACTION_TDLS) { 24428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid frame - payloadtype=%u " 24438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "category=%u action=%u", 24448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf->payloadtype, tf->category, tf->action); 24458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 24468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (tf->action) { 24498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_SETUP_REQUEST: 24508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_process_tpk_m1(sm, src_addr, buf, len); 24518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 24528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_SETUP_RESPONSE: 24538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_process_tpk_m2(sm, src_addr, buf, len); 24548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 24558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_SETUP_CONFIRM: 24568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_process_tpk_m3(sm, src_addr, buf, len); 24578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 24588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_TEARDOWN: 24598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_recv_teardown(sm, src_addr, buf, len); 24608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 24611f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt case WLAN_TDLS_DISCOVERY_REQUEST: 24621f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_tdls_process_discovery_request(sm, src_addr, buf, len); 24631f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 24648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 24658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Kernel code will process remaining frames */ 24668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Ignore TDLS frame action code %u", 24678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf->action); 24688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 24698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 24718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 24748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_init - Initialize driver interface parameters for TDLS 24758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_s: Pointer to wpa_supplicant data 24768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 24778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 24788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called to initialize driver interface parameters for TDLS. 24798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_drv_init() must have been called before this function to initialize the 24808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * driver interface. 24818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 24828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_tdls_init(struct wpa_sm *sm) 24838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 24848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 24858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 24868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 248704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt sm->l2_tdls = l2_packet_init(sm->bridge_ifname ? sm->bridge_ifname : 248804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt sm->ifname, 248904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt sm->own_addr, 24908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ETH_P_80211_ENCAP, wpa_supplicant_rx_tdls, 24918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm, 0); 24928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->l2_tdls == NULL) { 24938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "TDLS: Failed to open l2_packet " 24948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "connection"); 24958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 24968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24981f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* 24991f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * Drivers that support TDLS but don't implement the get_capa callback 25001f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * are assumed to perform everything internally 25011f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt */ 25021f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_sm_tdls_get_capa(sm, &sm->tdls_supported, 25031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt &sm->tdls_external_setup) < 0) { 25041f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls_supported = 1; 25051f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls_external_setup = 0; 25061f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 25071f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 25081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS operation%s supported by " 25091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "driver", sm->tdls_supported ? "" : " not"); 25101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Driver uses %s link setup", 25111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls_external_setup ? "external" : "internal"); 25121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 25138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 25148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 25158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2517f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidtvoid wpa_tdls_teardown_peers(struct wpa_sm *sm) 2518f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt{ 2519f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt struct wpa_tdls_peer *peer; 2520f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2521f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer = sm->tdls; 2522f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2523f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Tear down peers"); 2524f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2525f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt while (peer) { 2526f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Tear down peer " MACSTR, 2527f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt MAC2STR(peer->addr)); 2528f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (sm->tdls_external_setup) 2529f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_tdls_send_teardown(sm, peer->addr, 2530f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt WLAN_REASON_DEAUTH_LEAVING); 2531f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt else 2532f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_TEARDOWN, peer->addr); 2533f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2534f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer = peer->next; 2535f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 2536f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt} 2537f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2538f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 25398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_remove_peers(struct wpa_sm *sm) 25408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 25418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer, *tmp; 25428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer = sm->tdls; 25448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls = NULL; 25458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (peer) { 25478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res; 25488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tmp = peer->next; 25498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, peer->addr); 25508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Remove peer " MACSTR " (res=%d)", 25518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer->addr), res); 25528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 25538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(peer); 25548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer = tmp; 25558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 25578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 25608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_deinit - Deinitialize driver interface parameters for TDLS 25618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 25628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called to recover driver interface parameters for TDLS 25638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * and frees resources allocated for it. 25648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 25658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_deinit(struct wpa_sm *sm) 25668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 25678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 25688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 25698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->l2_tdls) 25718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt l2_packet_deinit(sm->l2_tdls); 25728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->l2_tdls = NULL; 25738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_remove_peers(sm); 25758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 25768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_assoc(struct wpa_sm *sm) 25798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 25808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Remove peers on association"); 25818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_remove_peers(sm); 25828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 25838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_disassoc(struct wpa_sm *sm) 25868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 25878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Remove peers on disassociation"); 25888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_remove_peers(sm); 25898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 25908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_prohibited(const u8 *ies, size_t len) 25938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 25948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse elems; 25958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ies == NULL) 25978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 25988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies(ies, len, &elems) < 0) 26008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 26018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (elems.ext_capab == NULL || elems.ext_capab_len < 2 + 5) 26038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 26048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* bit 38 - TDLS Prohibited */ 26068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return !!(elems.ext_capab[2 + 4] & 0x40); 26078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 26088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_ap_ies(struct wpa_sm *sm, const u8 *ies, size_t len) 26118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 26128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_prohibited = wpa_tdls_prohibited(ies, len); 26138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS is %s in the target BSS", 26148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_prohibited ? "prohibited" : "allowed"); 26158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 26168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_assoc_resp_ies(struct wpa_sm *sm, const u8 *ies, size_t len) 26198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 26208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!sm->tdls_prohibited && wpa_tdls_prohibited(ies, len)) { 26218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS prohibited based on " 26228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Re)Association Response IEs"); 26238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_prohibited = 1; 26248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 26258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 26268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_enable(struct wpa_sm *sm, int enabled) 26298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 26308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: %s", enabled ? "enabled" : "disabled"); 26318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_disabled = !enabled; 26328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 26331f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 26341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 26351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint wpa_tdls_is_external_setup(struct wpa_sm *sm) 26361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 26371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return sm->tdls_external_setup; 26381f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 2639