tdls.c revision c28170251eb54dbf64a9074a07fee377587425b2
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) 3621de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt#define TDLS_TESTING_WRONG_MIC BIT(11) 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtunsigned int tdls_testing = 0; 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TPK_LIFETIME 43200 /* 12 hours */ 41f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt#define TPK_M1_RETRY_COUNT 3 42f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt#define TPK_M1_TIMEOUT 5000 /* in milliseconds */ 43f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt#define TPK_M2_RETRY_COUNT 10 44f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt#define TPK_M2_TIMEOUT 500 /* in milliseconds */ 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_MIC_LEN 16 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_TIMEOUT_LEN 4 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_tdls_ftie { 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_type; /* FTIE */ 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_len; 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic_ctrl[2]; 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic[TDLS_MIC_LEN]; 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 Anonce[WPA_NONCE_LEN]; /* Responder Nonce in TDLS */ 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 Snonce[WPA_NONCE_LEN]; /* Initiator Nonce in TDLS */ 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* followed by optional elements */ 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} STRUCT_PACKED; 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_tdls_timeoutie { 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_type; /* Timeout IE */ 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_len; 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 interval_type; 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 value[TDLS_TIMEOUT_LEN]; 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} STRUCT_PACKED; 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_tdls_lnkid { 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_type; /* Link Identifier IE */ 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 ie_len; 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 bssid[ETH_ALEN]; 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 init_sta[ETH_ALEN]; 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 resp_sta[ETH_ALEN]; 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} STRUCT_PACKED; 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* TDLS frame headers as per IEEE Std 802.11z-2010 */ 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_tdls_frame { 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 payloadtype; /* IEEE80211_TDLS_RFTYPE */ 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 category; /* Category */ 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action; /* Action (enum tdls_frame_type) */ 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} STRUCT_PACKED; 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_add_tdls_timeoutie(u8 *pos, u8 *ie, size_t ie_len, u32 tsecs); 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_retry_timeout(void *eloop_ctx, void *timeout_ctx); 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_peer_free(struct wpa_sm *sm, struct wpa_tdls_peer *peer); 85d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Duttstatic void wpa_tdls_disable_peer_link(struct wpa_sm *sm, 86d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt struct wpa_tdls_peer *peer); 87b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidtstatic int wpa_tdls_send_teardown(struct wpa_sm *sm, const u8 *addr, 88b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt u16 reason_code); 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#define TDLS_MAX_IE_LEN 80 921f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt#define IEEE80211_MAX_SUPP_RATES 32 931f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct wpa_tdls_peer { 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *next; 968da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt unsigned int reconfig_key:1; 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int initiator; /* whether this end was initiator for TDLS setup */ 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 addr[ETH_ALEN]; /* other end MAC address */ 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 inonce[WPA_NONCE_LEN]; /* Initiator Nonce */ 1008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 rnonce[WPA_NONCE_LEN]; /* Responder Nonce */ 1018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 rsnie_i[TDLS_MAX_IE_LEN]; /* Initiator RSN IE */ 1028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t rsnie_i_len; 1038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 rsnie_p[TDLS_MAX_IE_LEN]; /* Peer RSN IE */ 1048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t rsnie_p_len; 1058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 1068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int cipher; /* Selected cipher (WPA_CIPHER_*) */ 1078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken; 1088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct tpk { 1108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 kck[16]; /* TPK-KCK */ 1118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 tk[16]; /* TPK-TK; assuming only CCMP will be used */ 1128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } tpk; 1138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tpk_set; 1148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tpk_success; 11573b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt int tpk_in_progress; 1168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct tpk_timer { 1188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dest[ETH_ALEN]; 1198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int count; /* Retry Count */ 1208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int timer; /* Timeout in milliseconds */ 1218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action_code; /* TDLS frame type */ 1228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dialog_token; 1238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status_code; 124df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt u32 peer_capab; 1258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int buf_len; /* length of TPK message for retransmission */ 1268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf; /* buffer for TPK message */ 1278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } sm_tmr; 1281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1291f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt u16 capability; 1301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1311f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; 1321f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt size_t supp_rates_len; 133f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 134f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt struct ieee80211_ht_capabilities *ht_capabilities; 13533e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt struct ieee80211_vht_capabilities *vht_capabilities; 136f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 137f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt u8 qos_info; 138f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 13951b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt u16 aid; 14051b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt 141f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt u8 *ext_capab; 142f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt size_t ext_capab_len; 143344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 144344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt u8 *supp_channels; 145344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt size_t supp_channels_len; 146344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 147344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt u8 *supp_oper_classes; 148344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt size_t supp_oper_classes_len; 149df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt 150df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt u8 wmm_capable; 1518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt}; 1528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_get_privacy(struct wpa_sm *sm) 1558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 1578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Get info needed from supplicant to check if the current BSS supports 1588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * security. Other than OPEN mode, rest are considered secured 1598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * WEP/WPA/WPA2 hence TDLS frames are processed for TPK handshake. 1608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 1618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return sm->pairwise_cipher != WPA_CIPHER_NONE; 1628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_add_ie(u8 *pos, const u8 *ie, size_t ie_len) 1668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ie, ie_len); 1688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos + ie_len; 1698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_del_key(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 1738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_sm_set_key(sm, WPA_ALG_NONE, peer->addr, 1758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 0, 0, NULL, 0, NULL, 0) < 0) { 1768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: Failed to delete TPK-TK from " 1778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "the driver"); 1788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 1798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 1808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 1828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 1838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_set_key(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 1868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 1878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 key_len; 1888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 rsc[6]; 1898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum wpa_alg alg; 1908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(rsc, 0, 6); 1928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (peer->cipher) { 1948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WPA_CIPHER_CCMP: 1958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt alg = WPA_ALG_CCMP; 1968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_len = 16; 1978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 1988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WPA_CIPHER_NONE: 1998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Pairwise Cipher Suite: " 2008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "NONE - do not use pairwise keys"); 2018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 2038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: Unsupported pairwise cipher %d", 2048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->pairwise_cipher); 2058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_sm_set_key(sm, alg, peer->addr, -1, 1, 2098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsc, sizeof(rsc), peer->tpk.tk, key_len) < 0) { 2108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: Failed to set TPK to the " 2118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "driver"); 2128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_msg(struct wpa_sm *sm, const u8 *dst, 2198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action_code, u8 dialog_token, 220df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt u16 status_code, u32 peer_capab, 221df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt const u8 *buf, size_t len) 2228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_sm_send_tdls_mgmt(sm, dst, action_code, dialog_token, 224df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt status_code, peer_capab, buf, len); 2258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_tpk_send(struct wpa_sm *sm, const u8 *dest, u8 action_code, 229df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt u8 dialog_token, u16 status_code, u32 peer_capab, 2308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *msg, size_t msg_len) 2318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 2328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 2338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK send dest=" MACSTR " action_code=%u " 235b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt "dialog_token=%u status_code=%u peer_capab=%u msg_len=%u", 2368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dest), action_code, dialog_token, status_code, 237b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt peer_capab, (unsigned int) msg_len); 2388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_send_tpk_msg(sm, dest, action_code, dialog_token, 240df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt status_code, peer_capab, msg, msg_len)) { 2418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to send message " 2428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(action_code=%u)", action_code); 2438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (action_code == WLAN_TDLS_SETUP_CONFIRM || 2471f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt action_code == WLAN_TDLS_TEARDOWN || 2481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt action_code == WLAN_TDLS_DISCOVERY_REQUEST || 2491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt action_code == WLAN_TDLS_DISCOVERY_RESPONSE) 2508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; /* No retries */ 2518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 2538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, dest, ETH_ALEN) == 0) 2548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 2558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 2588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching entry found for " 2598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "retry " MACSTR, MAC2STR(dest)); 2608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 2628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 2648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 265f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt if (action_code == WLAN_TDLS_SETUP_RESPONSE) { 266f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.count = TPK_M2_RETRY_COUNT; 267f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.timer = TPK_M2_TIMEOUT; 268f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt } else { 269f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.count = TPK_M1_RETRY_COUNT; 270f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt peer->sm_tmr.timer = TPK_M1_TIMEOUT; 271f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt } 2728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Copy message to resend on timeout */ 2748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->sm_tmr.dest, dest, ETH_ALEN); 2758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code = action_code; 2768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.dialog_token = dialog_token; 2778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.status_code = status_code; 278df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer->sm_tmr.peer_capab = peer_capab; 2798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf_len = msg_len; 2808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(peer->sm_tmr.buf); 2818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf = os_malloc(msg_len); 2828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->sm_tmr.buf == NULL) 2838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->sm_tmr.buf, msg, msg_len); 2858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Retry timeout registered " 2878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(action_code=%u)", action_code); 288f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt eloop_register_timeout(peer->sm_tmr.timer / 1000, 289f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt (peer->sm_tmr.timer % 1000) * 1000, 2908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout, sm, peer); 2918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 2928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 2938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2951f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int wpa_tdls_do_teardown(struct wpa_sm *sm, struct wpa_tdls_peer *peer, 2966a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt u16 reason_code) 2971f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 2981f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int ret; 2991f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3006a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt ret = wpa_tdls_send_teardown(sm, peer->addr, reason_code); 3016a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt /* disable the link after teardown was sent */ 302d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 3031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3041f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return ret; 3051f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 3061f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3071f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 3088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_retry_timeout(void *eloop_ctx, void *timeout_ctx) 3098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm = eloop_ctx; 3128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer = timeout_ctx; 3138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->sm_tmr.count) { 3158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.count--; 3168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Retrying sending of message " 3188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(action_code=%u)", 3198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code); 3208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->sm_tmr.buf == NULL) { 3228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No retry buffer available " 3238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "for action_code=%u", 3248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code); 3258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, 3268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer); 3278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 3288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* resend TPK Handshake Message to Peer */ 3318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_send_tpk_msg(sm, peer->sm_tmr.dest, 3328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code, 3338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.dialog_token, 3348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.status_code, 335df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer->sm_tmr.peer_capab, 3368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf, 3378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf_len)) { 3388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to retry " 3398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "transmission"); 3408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 343f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt eloop_register_timeout(peer->sm_tmr.timer / 1000, 344f7e0a9905988e62e4f70fed8b795722abeab719bDmitry Shmidt (peer->sm_tmr.timer % 1000) * 1000, 3458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout, sm, peer); 3468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 3478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 3488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending Teardown Request"); 3501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_tdls_do_teardown(sm, peer, 3516a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 3528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_retry_timeout_cancel(struct wpa_sm *sm, 3578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer, 3588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 action_code) 3598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (action_code == peer->sm_tmr.action_code) { 3618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Retry timeout cancelled for " 3628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "action_code=%u", action_code); 3638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Cancel Timeout registered */ 3658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 3668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* free all resources meant for retry */ 3688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(peer->sm_tmr.buf); 3698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf = NULL; 3708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.count = 0; 3728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.timer = 0; 3738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf_len = 0; 3748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.action_code = 0xff; 3758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 3768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Error in cancelling retry timeout " 3778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Unknown action_code=%u)", action_code); 3788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 3798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 3808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_generate_tpk(struct wpa_tdls_peer *peer, 3838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *own_addr, const u8 *bssid) 3848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 3858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 key_input[SHA256_MAC_LEN]; 3868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *nonce[2]; 3878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t len[2]; 3888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 data[3 * ETH_ALEN]; 3898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 3908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* IEEE Std 802.11z-2010 8.5.9.1: 3918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TPK-Key-Input = SHA-256(min(SNonce, ANonce) || max(SNonce, ANonce)) 3928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 3938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len[0] = WPA_NONCE_LEN; 3948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len[1] = WPA_NONCE_LEN; 3958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->inonce, peer->rnonce, WPA_NONCE_LEN) < 0) { 3968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[0] = peer->inonce; 3978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[1] = peer->rnonce; 3988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 3998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[0] = peer->rnonce; 4008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt nonce[1] = peer->inonce; 4018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: min(Nonce)", nonce[0], WPA_NONCE_LEN); 4038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: max(Nonce)", nonce[1], WPA_NONCE_LEN); 4048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sha256_vector(2, nonce, len, key_input); 4058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: TPK-Key-Input", 4068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt key_input, SHA256_MAC_LEN); 4078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TPK-Key-Data = KDF-N_KEY(TPK-Key-Input, "TDLS PMK", 4108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * min(MAC_I, MAC_R) || max(MAC_I, MAC_R) || BSSID || N_KEY) 4118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TODO: is N_KEY really included in KDF Context and if so, in which 4128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * presentation format (little endian 16-bit?) is it used? It gets 4138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * added by the KDF anyway.. 4148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(own_addr, peer->addr, ETH_ALEN) < 0) { 4178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data, own_addr, ETH_ALEN); 4188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data + ETH_ALEN, peer->addr, ETH_ALEN); 4198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 4208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data, peer->addr, ETH_ALEN); 4218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data + ETH_ALEN, own_addr, ETH_ALEN); 4228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(data + 2 * ETH_ALEN, bssid, ETH_ALEN); 4248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: KDF Context", data, sizeof(data)); 4258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sha256_prf(key_input, SHA256_MAC_LEN, "TDLS PMK", data, sizeof(data), 4278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &peer->tpk, sizeof(peer->tpk)); 4288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: TPK-KCK", 4298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk.kck, sizeof(peer->tpk.kck)); 4308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: TPK-TK", 4318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk.tk, sizeof(peer->tpk.tk)); 4328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk_set = 1; 4338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_ftie_mic - Calculate TDLS FTIE MIC 4388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @kck: TPK-KCK 4398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @lnkid: Pointer to the beginning of Link Identifier IE 4408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @rsnie: Pointer to the beginning of RSN IE used for handshake 4418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @timeoutie: Pointer to the beginning of Timeout IE used for handshake 4428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ftie: Pointer to the beginning of FT IE 4438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @mic: Pointer for writing MIC 4448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 4458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Calculate MIC for TDLS frame. 4468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 4478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_ftie_mic(const u8 *kck, u8 trans_seq, const u8 *lnkid, 4488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *rsnie, const u8 *timeoutie, 4498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ftie, u8 *mic) 4508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 4518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf, *pos; 4528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *_ftie; 4538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_lnkid *_lnkid; 4548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret; 4558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int len = 2 * ETH_ALEN + 1 + 2 + lnkid[1] + 2 + rsnie[1] + 4568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2 + timeoutie[1] + 2 + ftie[1]; 4578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = os_zalloc(len); 4588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!buf) { 4598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: No memory for MIC calculation"); 4608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 4618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 4628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 4648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _lnkid = (const struct wpa_tdls_lnkid *) lnkid; 4658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 1) TDLS initiator STA MAC address */ 4668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, _lnkid->init_sta, ETH_ALEN); 4678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 4688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 2) TDLS responder STA MAC address */ 4698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, _lnkid->resp_sta, ETH_ALEN); 4708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += ETH_ALEN; 4718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3) Transaction Sequence number */ 4728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = trans_seq; 4738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4) Link Identifier IE */ 4748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, lnkid, 2 + lnkid[1]); 4758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + lnkid[1]; 4768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 5) RSN IE */ 4778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, rsnie, 2 + rsnie[1]); 4788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + rsnie[1]; 4798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6) Timeout Interval IE */ 4808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, timeoutie, 2 + timeoutie[1]); 4818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + timeoutie[1]; 4828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 7) FTIE, with the MIC field of the FTIE set to 0 */ 4838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ftie, 2 + ftie[1]); 4848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie = (struct wpa_tdls_ftie *) pos; 4858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(_ftie->mic, 0, TDLS_MIC_LEN); 4868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + ftie[1]; 4878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Data for FTIE MIC", buf, pos - buf); 4898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: KCK", kck, 16); 4908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = omac1_aes_128(kck, buf, pos - buf, mic); 4918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(buf); 4928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE MIC", mic, 16); 4938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 4948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 4958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 4978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 4988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_key_mic_teardown - Calculate TDLS FTIE MIC for Teardown frame 4998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @kck: TPK-KCK 5008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @trans_seq: Transaction Sequence Number (4 - Teardown) 5018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @rcode: Reason code for Teardown 5028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dtoken: Dialog Token used for that particular link 5038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @lnkid: Pointer to the beginning of Link Identifier IE 5048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @ftie: Pointer to the beginning of FT IE 5058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @mic: Pointer for writing MIC 5068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Calculate MIC for TDLS frame. 5088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 5098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_key_mic_teardown(const u8 *kck, u8 trans_seq, u16 rcode, 5108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken, const u8 *lnkid, 5118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *ftie, u8 *mic) 5128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf, *pos; 5148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *_ftie; 5158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ret; 5168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int len; 5178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lnkid == NULL) 5198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt len = 2 + lnkid[1] + sizeof(rcode) + sizeof(dtoken) + 5228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(trans_seq) + 2 + ftie[1]; 5238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf = os_zalloc(len); 5258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!buf) { 5268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: No memory for MIC calculation"); 5278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 5318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 1) Link Identifier IE */ 5328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, lnkid, 2 + lnkid[1]); 5338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + lnkid[1]; 5348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 2) Reason Code */ 5358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, rcode); 5368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(rcode); 5378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 3) Dialog token */ 5388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = dtoken; 5398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 4) Transaction Sequence number */ 5408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = trans_seq; 5418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 7) FTIE, with the MIC field of the FTIE set to 0 */ 5428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ftie, 2 + ftie[1]); 5438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt _ftie = (struct wpa_tdls_ftie *) pos; 5448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(_ftie->mic, 0, TDLS_MIC_LEN); 5458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 + ftie[1]; 5468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Data for FTIE MIC", buf, pos - buf); 5488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump_key(MSG_DEBUG, "TDLS: KCK", kck, 16); 5498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ret = omac1_aes_128(kck, buf, pos - buf, mic); 5508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(buf); 5518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE MIC", mic, 16); 5528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return ret; 5538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_supplicant_verify_tdls_mic(u8 trans_seq, 5578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer, 5588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *lnkid, const u8 *timeoutie, 5598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_ftie *ftie) 5608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic[16]; 5628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->tpk_set) { 5648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_ftie_mic(peer->tpk.kck, trans_seq, lnkid, 5658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p, timeoutie, (u8 *) ftie, 5668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mic); 567c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt if (os_memcmp_const(mic, ftie->mic, 16) != 0) { 5688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid MIC in FTIE - " 5698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "dropping packet"); 5708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Received MIC", 5718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->mic, 16); 5728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Calculated MIC", 5738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt mic, 16); 5748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 5778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_WARNING, "TDLS: Could not verify TDLS MIC, " 5788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK not set - dropping packet"); 5798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 5828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 5838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_supplicant_verify_tdls_mic_teardown( 5868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 trans_seq, u16 rcode, u8 dtoken, struct wpa_tdls_peer *peer, 5878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *lnkid, const struct wpa_tdls_ftie *ftie) 5888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 5898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 mic[16]; 5908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 5918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->tpk_set) { 5928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_key_mic_teardown(peer->tpk.kck, trans_seq, rcode, 5938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dtoken, lnkid, (u8 *) ftie, mic); 594c28170251eb54dbf64a9074a07fee377587425b2Dmitry Shmidt if (os_memcmp_const(mic, ftie->mic, 16) != 0) { 5958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid MIC in Teardown - " 5968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "dropping packet"); 5978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 5988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 5998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 6008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Could not verify TDLS Teardown " 6018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "MIC, TPK not set - dropping packet"); 6028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 6038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 6058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_tpk_timeout(void *eloop_ctx, void *timeout_ctx) 6098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm = eloop_ctx; 6118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer = timeout_ctx; 6128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 6148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * On TPK lifetime expiration, we have an option of either tearing down 6158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the direct link or trying to re-initiate it. The selection of what 6168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * to do is not strictly speaking controlled by our role in the expired 6178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * link, but for now, use that to select whether to renew or tear down 6188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the link. 6198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 6208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->initiator) { 6228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime expired for " MACSTR 6238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " - try to renew", MAC2STR(peer->addr)); 6248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_start(sm, peer->addr); 6258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 6268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime expired for " MACSTR 6278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " - tear down", MAC2STR(peer->addr)); 6281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_tdls_do_teardown(sm, peer, 6296a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 6308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 6318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 634d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidtstatic void wpa_tdls_peer_remove_from_list(struct wpa_sm *sm, 635d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt struct wpa_tdls_peer *peer) 636d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt{ 637d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt struct wpa_tdls_peer *cur, *prev; 638d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 639d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt cur = sm->tdls; 640d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt prev = NULL; 641d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt while (cur && cur != peer) { 642d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt prev = cur; 643d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt cur = cur->next; 644d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt } 645d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 646d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (cur != peer) { 647d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_printf(MSG_ERROR, "TDLS: Could not find peer " MACSTR 648d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt " to remove it from the list", 649d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt MAC2STR(peer->addr)); 650d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt return; 651d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt } 652d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 653d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (prev) 654d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt prev->next = peer->next; 655d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt else 656d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt sm->tdls = peer->next; 657d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt} 658d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 659d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 660d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidtstatic void wpa_tdls_peer_clear(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 6618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 6628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Clear state for peer " MACSTR, 6638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer->addr)); 6648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_timeout, sm, peer); 6658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_retry_timeout, sm, peer); 6668da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 0; 6678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 0; 66873b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 0; 6698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(peer->sm_tmr.buf); 6708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->sm_tmr.buf = NULL; 671f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_free(peer->ht_capabilities); 672f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ht_capabilities = NULL; 67333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt os_free(peer->vht_capabilities); 67433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt peer->vht_capabilities = NULL; 675f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_free(peer->ext_capab); 676f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ext_capab = NULL; 677344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_channels); 678344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels = NULL; 679344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_oper_classes); 680344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes = NULL; 6818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = peer->rsnie_p_len = 0; 6828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = 0; 683df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer->qos_info = 0; 684df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer->wmm_capable = 0; 6858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk_set = peer->tpk_success = 0; 6868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(&peer->tpk, 0, sizeof(peer->tpk)); 6878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(peer->inonce, 0, WPA_NONCE_LEN); 6888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(peer->rnonce, 0, WPA_NONCE_LEN); 6898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 6908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 6918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 692d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidtstatic void wpa_tdls_peer_free(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 693d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt{ 694d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_peer_clear(sm, peer); 695d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_peer_remove_from_list(sm, peer); 696d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt os_free(peer); 697d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt} 698d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 699d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 7008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_linkid(struct wpa_sm *sm, struct wpa_tdls_peer *peer, 7018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid) 7028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid->ie_type = WLAN_EID_LINK_ID; 7048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid->ie_len = 3 * ETH_ALEN; 7058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->bssid, sm->bssid, ETH_ALEN); 7068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer->initiator) { 7078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->init_sta, sm->own_addr, ETH_ALEN); 7088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->resp_sta, peer->addr, ETH_ALEN); 7098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 7108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->init_sta, peer->addr, ETH_ALEN); 7118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(lnkid->resp_sta, sm->own_addr, ETH_ALEN); 7128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 7148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 716b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidtstatic int wpa_tdls_send_teardown(struct wpa_sm *sm, const u8 *addr, 717b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt u16 reason_code) 7188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 7198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 7208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 7218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid lnkid; 7228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dialog_token; 7238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos; 7248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 7258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 7278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 7288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Find the node and free from the list */ 7308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 7318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 7328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 7338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 7368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching entry found for " 7378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown " MACSTR, MAC2STR(addr)); 7388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 7398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dialog_token = peer->dtoken; 7428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS Teardown for " MACSTR, 7448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(addr)); 7458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = 0; 7478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm) && peer->tpk_set && peer->tpk_success) { 7488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* To add FTIE for Teardown request and compute MIC */ 7498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen += sizeof(*ftie); 7508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 7518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) 7528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen += 170; 7538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 7548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(ielen + 1); 7578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) 7588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 7598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 7608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 76151b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt if (!wpa_tdls_get_privacy(sm) || !peer->tpk_set || !peer->tpk_success) 7628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 7638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 7658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 7668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Using the recent nonce which should be for CONFIRM frame */ 7678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Anonce, peer->rnonce, WPA_NONCE_LEN); 7688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 7698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 7708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 7718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 7728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 7738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 7748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 7758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 7768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 7778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 7781f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt pos += 168; 7798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 7808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 7818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE for TDLS Teardown handshake", 7821f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt (u8 *) ftie, pos - (u8 *) ftie); 7838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* compute MIC before sending */ 7858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_linkid(sm, peer, &lnkid); 7868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_key_mic_teardown(peer->tpk.kck, 4, reason_code, 7878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dialog_token, (u8 *) &lnkid, (u8 *) ftie, 7888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->mic); 7898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ies: 7918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: register for a Timeout handler, if Teardown is not received at 7928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * the other end, then try again another time */ 7938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* request driver to send Teardown using this FTIE */ 7958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_send(sm, addr, WLAN_TDLS_TEARDOWN, 0, 796df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt reason_code, 0, rbuf, pos - rbuf); 7978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 7988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 7998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 8008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 8018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 8031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint wpa_tdls_teardown_link(struct wpa_sm *sm, const u8 *addr, u16 reason_code) 8041f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 8051f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 8061f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8071f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 8081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 8091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 8111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 8121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 8131f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 8141f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8151f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peer == NULL) { 8161f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Could not find peer " MACSTR 8171f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt " for link Teardown", MAC2STR(addr)); 8181f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 8191f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 8201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8211f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (!peer->tpk_success) { 8221f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Peer " MACSTR 8231f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt " not connected - cannot Teardown link", MAC2STR(addr)); 8241f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 8251f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 8261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8276a9f522e56dae5b1fff00642e27b82e82772dcf7Sunil Dutt return wpa_tdls_do_teardown(sm, peer, reason_code); 8281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 8291f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 83138ffd8879e7990491033bf20568212e8c3472b48Sunil Duttstatic void wpa_tdls_disable_peer_link(struct wpa_sm *sm, 83238ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt struct wpa_tdls_peer *peer) 83338ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt{ 83438ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, peer->addr); 83538ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_peer_free(sm, peer); 83638ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt} 83738ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt 83838ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt 83943cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidtvoid wpa_tdls_disable_unreachable_link(struct wpa_sm *sm, const u8 *addr) 8401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 8411f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 8421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 8441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 8451f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 8461f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 8471f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 84843cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt if (!peer || !peer->tpk_success) { 84943cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Peer " MACSTR 85043cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt " not connected - cannot teardown unreachable link", 85143cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt MAC2STR(addr)); 85243cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt return; 85343cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt } 85443cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt 85543cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt if (wpa_tdls_is_external_setup(sm)) { 85643cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt /* 85743cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt * Disable the link, send a teardown packet through the 85843cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt * AP, and then reset link data. 85943cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt */ 86043cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, addr); 86143cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt wpa_tdls_send_teardown(sm, addr, 86243cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE); 86343cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt wpa_tdls_peer_free(sm, peer); 86443cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt } else { 86538ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 86643cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt } 8671f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 8681f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 8691f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 870e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidtconst char * wpa_tdls_get_link_status(struct wpa_sm *sm, const u8 *addr) 871e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt{ 872e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt struct wpa_tdls_peer *peer; 873e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 874e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 875e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "disabled"; 876e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 877e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 878e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 879e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt break; 880e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt } 881e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 882e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (peer == NULL) 883e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "peer does not exist"; 884e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 885e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt if (!peer->tpk_success) 886e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "peer not connected"; 887e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 888e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt return "connected"; 889e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt} 890e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 891e0e48dc666fb14a7bb60264ca87463ba7bc1fe0bDmitry Shmidt 8928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_recv_teardown(struct wpa_sm *sm, const u8 *src_addr, 8938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 8948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 8958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer = NULL; 8968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 8978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 8988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 8998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 reason_code; 9008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 9018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 9028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Find the node and free from the list */ 9048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 9058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, src_addr, ETH_ALEN) == 0) 9068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 9078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 9108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching entry found for " 9118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown " MACSTR, MAC2STR(src_addr)); 9128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 9138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 9168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 9178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt reason_code = WPA_GET_LE16(pos); 9198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 9208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS Teardown Request from " MACSTR 9228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " (reason code %u)", MAC2STR(src_addr), reason_code); 9238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (pos - buf); /* start of IE in buf */ 9258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies((const u8 *) pos, ielen, &kde) < 0) { 9268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse IEs in Teardown"); 9278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 9288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 9318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Link Identifier IE in TDLS " 9328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown"); 9338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 9348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 9368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm) || !peer->tpk_set || !peer->tpk_success) 9388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ftie; 9398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie)) { 9418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE in TDLS Teardown"); 9428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 9438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 9468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Process MIC check to see if TDLS Teardown is right */ 9488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_verify_tdls_mic_teardown(4, reason_code, 9498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dtoken, peer, 9508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) lnkid, ftie) < 0) { 9518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: MIC failure for TDLS " 9528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Teardown Request from " MACSTR, MAC2STR(src_addr)); 9538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 9548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 9558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ftie: 9578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 9588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Request the driver to disable the direct link and clear associated 9598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * keys. 9608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 96138ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 9628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 9638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 9678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_send_error - To send suitable TDLS status response with 9688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * appropriate status code mentioning reason for error/failure. 9698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @dst - MAC addr of Peer station 9708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @tdls_action - TDLS frame type for which error code is sent 9718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @status - status code mentioning reason 9728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 9738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_error(struct wpa_sm *sm, const u8 *dst, 9758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 tdls_action, u8 dialog_token, u16 status) 9768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 9778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending error to " MACSTR 9788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt " (action=%u status=%u)", 9798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(dst), tdls_action, status); 9808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return wpa_tdls_tpk_send(sm, dst, tdls_action, dialog_token, status, 981df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt 0, NULL, 0); 9828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 9838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 9851f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic struct wpa_tdls_peer * 9864b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidtwpa_tdls_add_peer(struct wpa_sm *sm, const u8 *addr, int *existing) 9871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 9881f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 9891f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 9904b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (existing) 9914b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt *existing = 0; 9924b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 9934b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) { 9944b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (existing) 9954b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt *existing = 1; 9964b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return peer; /* re-use existing entry */ 9974b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt } 9984b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt } 9994b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt 10001f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Creating peer entry for " MACSTR, 10011f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt MAC2STR(addr)); 10021f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 10031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer = os_zalloc(sizeof(*peer)); 10041f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peer == NULL) 10051f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return NULL; 10061f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 10071f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt os_memcpy(peer->addr, addr, ETH_ALEN); 10081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer->next = sm->tdls; 10091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls = peer; 10101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 10111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return peer; 10121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 10131f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 10141f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 10158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_m1(struct wpa_sm *sm, 10168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer) 10178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 10188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buf_len; 10198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie timeoutie; 10208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 rsn_capab; 10218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 10228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos, *count_pos; 10238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 count; 10248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ie_hdr *hdr; 1025d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt int status; 10268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 10288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No security used on the link"); 10298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = 0; 10308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsnie; 10318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 10348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * TPK Handshake Message 1: 10358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * FTIE: ANonce=0, SNonce=initiator nonce MIC=0, DataKDs=(RSNIE_I, 10368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Timeout Interval IE)) 10378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 10388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Filling RSN IE */ 10408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) peer->rsnie_i; 10418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->elem_id = WLAN_EID_RSN; 10428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->version, RSN_VERSION); 10438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (hdr + 1); 10458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED); 10468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 10478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count_pos = pos; 10488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 10498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count = 0; 10518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 10538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * AES-CCMP is the default Encryption preferred for TDLS, so 10548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * RSN IE is filled only with CCMP CIPHER 10558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Note: TKIP is not used to encrypt TDLS link. 10568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 10578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Regardless of the cipher used on the AP connection, select CCMP 10588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * here. 10598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 10608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_CCMP); 10618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 10628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt count++; 10638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(count_pos, count); 10658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 1); 10678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 10688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE); 10698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 10708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab = WPA_CAPABILITY_PEERKEY_ENABLED; 10728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab |= RSN_NUM_REPLAY_COUNTERS_16 << 2; 10738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 10748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_ALT_RSN_IE) { 10758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Use alternative RSN IE for " 10768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "testing"); 10778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab = WPA_CAPABILITY_PEERKEY_ENABLED; 10788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 10808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, rsn_capab); 10818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 10828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 10838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_ALT_RSN_IE) { 10848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Number of PMKIDs */ 10858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0x00; 10868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 0x00; 10878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 10888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 10898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->len = (pos - peer->rsnie_i) - 2; 10918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = pos - peer->rsnie_i; 10928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE for TPK handshake", 10938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i, peer->rsnie_i_len); 10948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 10958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsnie: 10968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len = 0; 10978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) 10988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += peer->rsnie_i_len + sizeof(struct wpa_tdls_ftie) + 10998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct wpa_tdls_timeoutie); 11008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm) && 11028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (tdls_testing & TDLS_TESTING_LONG_FRAME)) 11038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += 170; 11048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_DIFF_BSSID) 11058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += sizeof(struct wpa_tdls_lnkid); 11068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(buf_len + 1); 11088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) { 11098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 11108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 11138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 11158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 11168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Initiator RSN IE */ 11188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_ie(pos, peer->rsnie_i, peer->rsnie_i_len); 11198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 11218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 11228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 11238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_get_random(peer->inonce, WPA_NONCE_LEN)) { 11258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, 11268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TDLS: Failed to get random data for initiator Nonce"); 11278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 11288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 11298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 11308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Initiator Nonce for TPK handshake", 11328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->inonce, WPA_NONCE_LEN); 11338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 11348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE for TPK Handshake M1", 11368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) ftie, sizeof(struct wpa_tdls_ftie)); 11378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 11398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 11428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 11438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 11448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 11458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 11468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 11478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 168; 11488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 11528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = TPK_LIFETIME; 11538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_SHORT_LIFETIME) { 11558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use short TPK " 11568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime"); 11578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = 301; 11588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_LIFETIME) { 11608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use long TPK " 11618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime"); 11628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = 0xffffffff; 11638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_tdls_timeoutie(pos, (u8 *) &timeoutie, 11668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(timeoutie), peer->lifetime); 11678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds", peer->lifetime); 11688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ies: 11708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 11728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_DIFF_BSSID) { 11738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use incorrect BSSID in " 11748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Link Identifier"); 11758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *l = (struct wpa_tdls_lnkid *) pos; 11768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_linkid(sm, peer, l); 11778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt l->bssid[5] ^= 0x01; 11788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += sizeof(*l); 11798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 11808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 11818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Setup Request / TPK " 11838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "Handshake Message 1 (peer " MACSTR ")", 11848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer->addr)); 11858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1186d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt status = wpa_tdls_tpk_send(sm, peer->addr, WLAN_TDLS_SETUP_REQUEST, 1187df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt 1, 0, 0, rbuf, pos - rbuf); 11888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 11898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1190d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt return status; 11918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 11928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 11948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_m2(struct wpa_sm *sm, 11958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const unsigned char *src_addr, u8 dtoken, 11968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid, 11978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_peer *peer) 11988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 11998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos; 12008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buf_len; 12018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 12028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie timeoutie; 12038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 1204d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt int status; 12058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len = 0; 12078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) { 12088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE, FTIE(Initiator Nonce, Responder Nonce), 12098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Lifetime */ 12108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += peer->rsnie_i_len + sizeof(struct wpa_tdls_ftie) + 12118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct wpa_tdls_timeoutie); 12128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 12138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) 12148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += 170; 12158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(buf_len + 1); 12198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) 12208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 12218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 12228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 12248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 12258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE */ 12278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_ie(pos, peer->rsnie_p, peer->rsnie_p_len); 12288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 12308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 12318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: ftie->mic_control to set 2-RESPONSE */ 12328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Anonce, peer->rnonce, WPA_NONCE_LEN); 12338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 12348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 12358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE for TPK M2", 12368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) ftie, sizeof(*ftie)); 12378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 12398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 12418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 12428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 12438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 12448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 12458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 12468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 12478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 168; 12488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 12528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = peer->lifetime; 12538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 12548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_WRONG_LIFETIME_RESP) { 12558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use wrong TPK " 12568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime in response"); 12578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime++; 12588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 12598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_tdls_timeoutie(pos, (u8 *) &timeoutie, 12618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(timeoutie), lifetime); 12628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds from initiator", 12638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 12648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* compute MIC before sending */ 12668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_ftie_mic(peer->tpk.kck, 2, (u8 *) lnkid, peer->rsnie_p, 12678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &timeoutie, (u8 *) ftie, ftie->mic); 126821de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 126921de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt if (tdls_testing & TDLS_TESTING_WRONG_MIC) { 127021de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use wrong MIC"); 127121de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt ftie->mic[0] ^= 0x01; 127221de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt } 127321de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 12748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_ies: 1276d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt status = wpa_tdls_tpk_send(sm, src_addr, WLAN_TDLS_SETUP_RESPONSE, 1277df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt dtoken, 0, 0, rbuf, pos - rbuf); 12788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 12798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1280d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt return status; 12818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 12828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_send_tpk_m3(struct wpa_sm *sm, 12858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const unsigned char *src_addr, u8 dtoken, 12868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid, 12878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const struct wpa_tdls_peer *peer) 12888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 12898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *rbuf, *pos; 12908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t buf_len; 12918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 12928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie timeoutie; 12938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 1294d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt int status; 1295df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt u32 peer_capab = 0; 12968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 12978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len = 0; 12988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) { 12998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE, FTIE(Initiator Nonce, Responder Nonce), 13008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Lifetime */ 13018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += peer->rsnie_i_len + sizeof(struct wpa_tdls_ftie) + 13028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(struct wpa_tdls_timeoutie); 13038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 13048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) 13058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf_len += 170; 13068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 13078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rbuf = os_zalloc(buf_len + 1); 13108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rbuf == NULL) 13118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 13128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = rbuf; 13138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 13158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_ies; 13168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Peer RSN IE */ 13188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_ie(pos, peer->rsnie_p, peer->rsnie_p_len); 13198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) pos; 13218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_type = WLAN_EID_FAST_BSS_TRANSITION; 13228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /*TODO: ftie->mic_control to set 3-CONFIRM */ 13238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Anonce, peer->rnonce, WPA_NONCE_LEN); 13248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); 13258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len = sizeof(struct wpa_tdls_ftie) - 2; 13268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (ftie + 1); 13288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 13308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_LONG_FRAME) { 13318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - add extra subelem to " 13328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "FTIE"); 13338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie->ie_len += 170; 13348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 255; /* FTIE subelem */ 13358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt *pos++ = 168; /* FTIE subelem length */ 13368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 168; 13378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 13398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 13418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = peer->lifetime; 13428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 13438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_WRONG_LIFETIME_CONF) { 13448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use wrong TPK " 13458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "lifetime in confirm"); 13468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime++; 13478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 13488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 13498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = wpa_add_tdls_timeoutie(pos, (u8 *) &timeoutie, 13508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sizeof(timeoutie), lifetime); 13518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds", 13528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 13538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* compute MIC before sending */ 13558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_ftie_mic(peer->tpk.kck, 3, (u8 *) lnkid, peer->rsnie_p, 13568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) &timeoutie, (u8 *) ftie, ftie->mic); 135721de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 135821de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt if (tdls_testing & TDLS_TESTING_WRONG_MIC) { 135921de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - use wrong MIC"); 136021de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt ftie->mic[0] ^= 0x01; 136121de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt } 136221de214b4ba4271ca20843f3b8fba9f1501b2a89Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 13638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1364b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidtskip_ies: 1365b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt 1366df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt if (peer->vht_capabilities) 1367df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer_capab |= TDLS_PEER_VHT; 1368b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt if (peer->ht_capabilities) 1369df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer_capab |= TDLS_PEER_HT; 1370b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt if (peer->wmm_capable) 1371df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer_capab |= TDLS_PEER_WMM; 1372df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt 1373d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt status = wpa_tdls_tpk_send(sm, src_addr, WLAN_TDLS_SETUP_CONFIRM, 1374df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt dtoken, 0, peer_capab, rbuf, pos - rbuf); 13758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_free(rbuf); 13768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 1377d5c075b0c218277d0f926daf1f9eff974b9656dcDmitry Shmidt return status; 13788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 13798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 13811f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int wpa_tdls_send_discovery_response(struct wpa_sm *sm, 13821f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer, 13831f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt u8 dialog_token) 13841f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 13851f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Discovery Response " 13861f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "(peer " MACSTR ")", MAC2STR(peer->addr)); 13871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13881f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return wpa_tdls_tpk_send(sm, peer->addr, WLAN_TDLS_DISCOVERY_RESPONSE, 1389df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt dialog_token, 0, 0, NULL, 0); 13901f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 13911f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13921f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 13931f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int 13941f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtwpa_tdls_process_discovery_request(struct wpa_sm *sm, const u8 *addr, 13951f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt const u8 *buf, size_t len) 13961f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 13971f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_eapol_ie_parse kde; 13981f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt const struct wpa_tdls_lnkid *lnkid; 13991f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer; 14001f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt size_t min_req_len = sizeof(struct wpa_tdls_frame) + 14011f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1 /* dialog token */ + sizeof(struct wpa_tdls_lnkid); 14021f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt u8 dialog_token; 14031f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14041f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discovery Request from " MACSTR, 14051f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt MAC2STR(addr)); 14061f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14071f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (len < min_req_len) { 14081f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS Discovery Request is too short: " 14091f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "%d", (int) len); 14101f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 14111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 14121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14131f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt dialog_token = buf[sizeof(struct wpa_tdls_frame)]; 14141f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14150c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt /* 14160c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * Some APs will tack on a weird IE to the end of a TDLS 14170c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * discovery request packet. This needn't fail the response, 14180c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * since the required IE are verified separately. 14190c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt */ 14201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_supplicant_parse_ies(buf + sizeof(struct wpa_tdls_frame) + 1, 14211f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt len - (sizeof(struct wpa_tdls_frame) + 1), 14220c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt &kde) < 0) { 14230c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt wpa_printf(MSG_DEBUG, 14240c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt "TDLS: Failed to parse IEs in Discovery Request - ignore as an interop workaround"); 14250c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt } 14261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (!kde.lnkid) { 14281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Link ID not found in Discovery " 14291f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "Request"); 14301f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 14311f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 14321f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14331f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt lnkid = (const struct wpa_tdls_lnkid *) kde.lnkid; 14341f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14351f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 14361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discovery Request from different " 14371f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt " BSS " MACSTR, MAC2STR(lnkid->bssid)); 14381f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 14391f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 14401f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14414b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, addr, NULL); 14421f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (peer == NULL) 14431f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 14441f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14451f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return wpa_tdls_send_discovery_response(sm, peer, dialog_token); 14461f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 14471f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint wpa_tdls_send_discovery_request(struct wpa_sm *sm, const u8 *addr) 14501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 14511f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 14521f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 14531f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14541f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending Discovery Request to peer " 14551f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt MACSTR, MAC2STR(addr)); 14561f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return wpa_tdls_tpk_send(sm, addr, WLAN_TDLS_DISCOVERY_REQUEST, 1457df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt 1, 0, 0, NULL, 0); 14581f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 14591f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14601f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14611f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtstatic int copy_supp_rates(const struct wpa_eapol_ie_parse *kde, 14621f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt struct wpa_tdls_peer *peer) 14631f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 14641f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (!kde->supp_rates) { 14651f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported rates received"); 14661f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 14671f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 1468a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt peer->supp_rates_len = merge_byte_arrays( 1469a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt peer->supp_rates, sizeof(peer->supp_rates), 1470a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt kde->supp_rates + 2, kde->supp_rates_len - 2, 147134af306c42b7ccf956508e7cd23f0ba90606e360Dmitry Shmidt kde->ext_supp_rates ? kde->ext_supp_rates + 2 : NULL, 147234af306c42b7ccf956508e7cd23f0ba90606e360Dmitry Shmidt kde->ext_supp_rates_len - 2); 14731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 0; 14741f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 14751f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 14761f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1477f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidtstatic int copy_peer_ht_capab(const struct wpa_eapol_ie_parse *kde, 1478f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt struct wpa_tdls_peer *peer) 1479f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt{ 1480f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!kde->ht_capabilities || 1481f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt kde->ht_capabilities_len < 1482f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt sizeof(struct ieee80211_ht_capabilities) ) { 1483f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported ht capabilities " 1484f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt "received"); 1485f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1486f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1487f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1488f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!peer->ht_capabilities) { 1489f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ht_capabilities = 1490f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_zalloc(sizeof(struct ieee80211_ht_capabilities)); 1491f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (peer->ht_capabilities == NULL) 1492f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return -1; 1493f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1494f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1495f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_memcpy(peer->ht_capabilities, kde->ht_capabilities, 1496f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt sizeof(struct ieee80211_ht_capabilities)); 1497f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer HT capabilities", 1498f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt (u8 *) peer->ht_capabilities, 1499f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt sizeof(struct ieee80211_ht_capabilities)); 1500f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1501f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1502f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt} 1503f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1504f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 150533e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidtstatic int copy_peer_vht_capab(const struct wpa_eapol_ie_parse *kde, 150633e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt struct wpa_tdls_peer *peer) 150733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt{ 150833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (!kde->vht_capabilities || 150933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt kde->vht_capabilities_len < 151033e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt sizeof(struct ieee80211_vht_capabilities) ) { 151133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported vht capabilities " 151233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt "received"); 151333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt return 0; 151433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt } 151533e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 151633e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (!peer->vht_capabilities) { 151733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt peer->vht_capabilities = 151833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt os_zalloc(sizeof(struct ieee80211_vht_capabilities)); 151933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (peer->vht_capabilities == NULL) 152033e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt return -1; 152133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt } 152233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 152333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt os_memcpy(peer->vht_capabilities, kde->vht_capabilities, 152433e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt sizeof(struct ieee80211_vht_capabilities)); 152533e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer VHT capabilities", 152633e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt (u8 *) peer->vht_capabilities, 152733e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt sizeof(struct ieee80211_vht_capabilities)); 152833e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 152933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt return 0; 153033e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt} 153133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 153233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 1533f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidtstatic int copy_peer_ext_capab(const struct wpa_eapol_ie_parse *kde, 1534f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt struct wpa_tdls_peer *peer) 1535f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt{ 1536f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!kde->ext_capab) { 1537f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No extended capabilities " 1538f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt "received"); 1539f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1540f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1541f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1542f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (!peer->ext_capab || peer->ext_capab_len < kde->ext_capab_len - 2) { 1543f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt /* Need to allocate buffer to fit the new information */ 1544f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_free(peer->ext_capab); 1545f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ext_capab = os_zalloc(kde->ext_capab_len - 2); 1546f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (peer->ext_capab == NULL) 1547f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return -1; 1548f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 1549f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1550f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->ext_capab_len = kde->ext_capab_len - 2; 1551f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt os_memcpy(peer->ext_capab, kde->ext_capab + 2, peer->ext_capab_len); 1552f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1553f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt return 0; 1554f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt} 1555f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1556f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1557b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidtstatic int copy_peer_wmm_capab(const struct wpa_eapol_ie_parse *kde, 1558b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt struct wpa_tdls_peer *peer) 1559b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt{ 1560b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt struct wmm_information_element *wmm; 1561b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1562b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (!kde->wmm) { 1563b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported WMM capabilities received"); 1564b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt return 0; 1565b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt } 1566b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1567b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (kde->wmm_len < sizeof(struct wmm_information_element)) { 1568b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Invalid supported WMM capabilities received"); 1569b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt return -1; 1570b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt } 1571b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1572b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wmm = (struct wmm_information_element *) kde->wmm; 1573b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt peer->qos_info = wmm->qos_info; 1574b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1575df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt peer->wmm_capable = 1; 1576df5a7e4c5c64890c2425bb47d665bbce4992b676Dmitry Shmidt 1577b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Peer WMM QOS Info 0x%x", peer->qos_info); 1578b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt return 0; 1579b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt} 1580b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1581b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 1582344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidtstatic int copy_peer_supp_channels(const struct wpa_eapol_ie_parse *kde, 1583344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt struct wpa_tdls_peer *peer) 1584344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt{ 1585344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!kde->supp_channels) { 1586344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported channels received"); 1587344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1588344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1589344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1590344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!peer->supp_channels || 1591344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels_len < kde->supp_channels_len) { 1592344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_channels); 1593344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels = os_zalloc(kde->supp_channels_len); 1594344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (peer->supp_channels == NULL) 1595344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return -1; 1596344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1597344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1598344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels_len = kde->supp_channels_len; 1599344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1600344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_memcpy(peer->supp_channels, kde->supp_channels, 1601344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_channels_len); 1602344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer Supported Channels", 1603344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt (u8 *) peer->supp_channels, peer->supp_channels_len); 1604344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1605344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt} 1606344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1607344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1608344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidtstatic int copy_peer_supp_oper_classes(const struct wpa_eapol_ie_parse *kde, 1609344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt struct wpa_tdls_peer *peer) 1610344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt{ 1611344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!kde->supp_oper_classes) { 1612344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: No supported operating classes received"); 1613344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1614344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1615344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1616344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (!peer->supp_oper_classes || 1617344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len < kde->supp_oper_classes_len) { 1618344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_free(peer->supp_oper_classes); 1619344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes = os_zalloc(kde->supp_oper_classes_len); 1620344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (peer->supp_oper_classes == NULL) 1621344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return -1; 1622344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt } 1623344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1624344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len = kde->supp_oper_classes_len; 1625344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt os_memcpy(peer->supp_oper_classes, kde->supp_oper_classes, 1626344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len); 1627344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Peer Supported Operating Classes", 1628344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt (u8 *) peer->supp_oper_classes, 1629344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt peer->supp_oper_classes_len); 1630344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt return 0; 1631344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt} 1632344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1633344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1634d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidtstatic int wpa_tdls_addset_peer(struct wpa_sm *sm, struct wpa_tdls_peer *peer, 1635d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt int add) 1636d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt{ 1637d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt return wpa_sm_tdls_peer_addset(sm, peer->addr, add, peer->aid, 1638d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->capability, 1639d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->supp_rates, peer->supp_rates_len, 1640d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->ht_capabilities, 1641d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->vht_capabilities, 1642d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->qos_info, peer->ext_capab, 1643d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->ext_capab_len, 1644d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->supp_channels, 1645d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->supp_channels_len, 1646d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->supp_oper_classes, 1647d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->supp_oper_classes_len); 1648d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt} 1649d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 1650d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 16518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_process_tpk_m1(struct wpa_sm *sm, const u8 *src_addr, 16528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 16538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 16548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 16558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 16568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ie_data ie; 16578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int cipher; 16588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *cpos; 16598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie = NULL; 16608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *timeoutie; 16618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 16628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime = 0; 16638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if 0 16648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct rsn_ie_hdr *hdr; 16658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos; 16668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 rsn_capab; 16678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 rsn_ver; 16688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 16698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken; 16708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 ielen; 16718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status = WLAN_STATUS_UNSPECIFIED_FAILURE; 16728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tdls_prohibited = sm->tdls_prohibited; 16731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt int existing_peer = 0; 16748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 3 + 3) 16768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 16778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cpos = buf; 16798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cpos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 16808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* driver had already verified the frame format */ 16828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dtoken = *cpos++; /* dialog token */ 16838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Dialog Token in TPK M1 %d", dtoken); 16858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 16864b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, src_addr, &existing_peer); 16874b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (peer == NULL) 16884b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt goto error; 16891f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 16900ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt /* If found, use existing entry instead of adding a new one; 16910ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * how to handle the case where both ends initiate at the 16920ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * same time? */ 16930ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (existing_peer) { 16940ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (peer->tpk_success) { 16950ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS Setup Request while " 16960ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "direct link is enabled - tear down the " 16970ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "old link first"); 1698d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, peer->addr); 1699d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_peer_clear(sm, peer); 1700d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt } else if (peer->initiator) { 1701d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt /* 1702d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt * An entry is already present, so check if we already 1703d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt * sent a TDLS Setup Request. If so, compare MAC 1704d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt * addresses and let the STA with the lower MAC address 1705d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt * continue as the initiator. The other negotiation is 1706d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt * terminated. 1707d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt */ 17080ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (os_memcmp(sm->own_addr, src_addr, ETH_ALEN) < 0) { 17090ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discard request " 17100ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "from peer with higher address " 17110ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt MACSTR, MAC2STR(src_addr)); 17120ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt return -1; 17130ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } else { 17140ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Accept request " 17150ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "from peer with lower address " 17160ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt MACSTR " (terminate previously " 17170ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "initiated negotiation", 17180ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt MAC2STR(src_addr)); 1719d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, 1720d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer->addr); 1721d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_peer_clear(sm, peer); 17220ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 17230ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 17240ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 17250ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt 17261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* capability information */ 17271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer->capability = WPA_GET_LE16(cpos); 17281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt cpos += 2; 17298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (cpos - buf); /* start of IE in buf */ 17318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies(cpos, ielen, &kde) < 0) { 17328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse IEs in TPK M1"); 17338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 17348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 17378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No valid Link Identifier IE in " 17388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M1"); 17398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 17408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Link ID Received from TPK M1", 17428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.lnkid, kde.lnkid_len); 17438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 17448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 17458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TPK M1 from diff BSS"); 17468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_NOT_IN_SAME_BSS; 17478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 17488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK M1 - TPK initiator " MACSTR, 17518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(src_addr)); 17528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17531f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (copy_supp_rates(&kde, peer) < 0) 17541f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto error; 17551f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 1756f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ht_capab(&kde, peer) < 0) 1757f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 1758f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 175933e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (copy_peer_vht_capab(&kde, peer) < 0) 176033e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt goto error; 176133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 1762f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ext_capab(&kde, peer) < 0) 1763f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 1764f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1765344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_channels(&kde, peer) < 0) 1766344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 1767344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1768344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_oper_classes(&kde, peer) < 0) 1769344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 1770344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 1771f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->qos_info = kde.qosinfo; 1772f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 1773b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt /* Overwrite with the qos_info obtained in WMM IE */ 1774b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (copy_peer_wmm_capab(&kde, peer) < 0) 1775b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt goto error; 1776b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 177751b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt peer->aid = kde.aid; 177851b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt 17798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 17808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_CONCURRENT_INIT) { 17814b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, src_addr, NULL); 17824b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (peer == NULL) 17834b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt goto error; 17848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing concurrent initiation of " 17858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TDLS setup - send own request"); 17868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 1; 17878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_send_tpk_m1(sm, peer); 17888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((tdls_testing & TDLS_TESTING_IGNORE_AP_PROHIBIT) && 17918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited) { 17928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - ignore AP prohibition " 17938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "on TDLS"); 17948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited = 0; 17958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 17968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 17978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 17988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_prohibited) { 17998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TDLS prohibited in this BSS"); 18008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_REQUEST_DECLINED; 18018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 18058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie) { 18068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: RSN IE in TPK M1 while " 18078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "security is disabled"); 18088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_SECURITY_DISABLED; 18098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn; 18128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie) || 18158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie == NULL) { 18168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE or RSN IE in TPK M1"); 18178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_PARAMETERS; 18188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie_len > TDLS_MAX_IE_LEN) { 18228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Too long Initiator RSN IE in " 18238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M1"); 18248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 18258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_parse_wpa_ie_rsn(kde.rsn_ie, kde.rsn_ie_len, &ie) < 0) { 18298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse RSN IE in TPK M1"); 18308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 18318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = ie.pairwise_cipher; 18358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (cipher & WPA_CIPHER_CCMP) { 18368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Using CCMP for direct link"); 18378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = WPA_CIPHER_CCMP; 18388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 18398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No acceptable cipher in TPK M1"); 18408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; 18418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((ie.capabilities & 18458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (WPA_CAPABILITY_NO_PAIRWISE | WPA_CAPABILITY_PEERKEY_ENABLED)) != 18468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_CAPABILITY_PEERKEY_ENABLED) { 18478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid RSN Capabilities in " 18488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M1"); 18498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSN_IE_CAPAB; 18508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 18548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.key_lifetime == NULL) { 18558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Key Lifetime IE in TPK M1"); 18568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 18578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt timeoutie = (struct wpa_tdls_timeoutie *) kde.key_lifetime; 18608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = WPA_GET_LE32(timeoutie->value); 18618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds", lifetime); 18628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime < 300) { 18638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Too short TPK lifetime"); 18648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 18658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 18668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn: 18691f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt#ifdef CONFIG_TDLS_TESTING 18701f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (tdls_testing & TDLS_TESTING_CONCURRENT_INIT) { 18711f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (os_memcmp(sm->own_addr, peer->addr, ETH_ALEN) < 0) { 18721f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* 18731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * The request frame from us is going to win, so do not 18741f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * replace information based on this request frame from 18751f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * the peer. 18761f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt */ 18771f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto skip_rsn_check; 18781f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 18791f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 18801f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 18811f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 18828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 0; /* Need to check */ 18838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dtoken = dtoken; 18848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 18868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = 0; 18878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = 0; 18888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = WPA_CIPHER_NONE; 18898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn_check; 18908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 18918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 18938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rsnie_i, kde.rsn_ie, kde.rsn_ie_len); 18948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i_len = kde.rsn_ie_len; 18958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = cipher; 18968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 18976102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt if (os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) != 0) { 18986102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt /* 18996102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * There is no point in updating the RNonce for every obtained 19006102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * TPK M1 frame (e.g., retransmission due to timeout) with the 19016102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * same INonce (SNonce in FTIE). However, if the TPK M1 is 19026102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * retransmitted with a different INonce, update the RNonce 19036102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt * since this is for a new TDLS session. 19046102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt */ 19056102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt wpa_printf(MSG_DEBUG, 19066102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt "TDLS: New TPK M1 INonce - generate new RNonce"); 19076102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt os_memcpy(peer->inonce, ftie->Snonce, WPA_NONCE_LEN); 19086102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt if (os_get_random(peer->rnonce, WPA_NONCE_LEN)) { 19096102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt wpa_msg(sm->ctx->ctx, MSG_WARNING, 19106102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt "TDLS: Failed to get random data for responder nonce"); 19116102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt goto error; 19126102472da23e48cb1406b87ec767f4fd9a40a85dSunil Dutt } 19138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 19148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#if 0 19168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* get version info from RSNIE received from Peer */ 19178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) kde.rsn_ie; 19188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_ver = WPA_GET_LE16(hdr->version); 19198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* use min(peer's version, out version) */ 19218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (rsn_ver > RSN_VERSION) 19228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_ver = RSN_VERSION; 19238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr = (struct rsn_ie_hdr *) peer->rsnie_p; 19258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->elem_id = WLAN_EID_RSN; 19278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(hdr->version, rsn_ver); 19288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = (u8 *) (hdr + 1); 19298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED); 19318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 19328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Include only the selected cipher in pairwise cipher suite */ 19338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 1); 19348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 19358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (cipher == WPA_CIPHER_CCMP) 19368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_CIPHER_SUITE_CCMP); 19378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 19388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, 1); 19408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 19418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE); 19428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += RSN_SELECTOR_LEN; 19438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab = WPA_CAPABILITY_PEERKEY_ENABLED; 19458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt rsn_capab |= RSN_NUM_REPLAY_COUNTERS_16 << 2; 19468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE16(pos, rsn_capab); 19478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2; 19488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt hdr->len = (pos - peer->rsnie_p) - 2; 19508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = pos - peer->rsnie_p; 19518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif 19528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* temp fix: validation of RSNIE later */ 19548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rsnie_p, peer->rsnie_i, peer->rsnie_i_len); 19558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = peer->rsnie_i_len; 19568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE for TPK handshake", 19588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p, peer->rsnie_p_len); 19598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->lifetime = lifetime; 19618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_generate_tpk(peer, sm->own_addr, sm->bssid); 19638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn_check: 1965d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt /* add supported rates, capabilities, and qos_info to the TDLS peer */ 1966d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (wpa_tdls_addset_peer(sm, peer, 1) < 0) 196743cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt goto error; 196843cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt 196973b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 1; 19701f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 19718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Setup Response / TPK M2"); 19721f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_tdls_send_tpk_m2(sm, src_addr, dtoken, lnkid, peer) < 0) { 1973d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, peer->addr); 19741f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto error; 19751f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 19768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 19788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterror: 19808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_send_error(sm, src_addr, WLAN_TDLS_SETUP_RESPONSE, dtoken, 19818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 198243cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt if (peer) 198343cb578dfe2c492257636f6234a24178ed27789eDmitry Shmidt wpa_tdls_peer_free(sm, peer); 19848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 19858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 19868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 19888da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidtstatic int wpa_tdls_enable_link(struct wpa_sm *sm, struct wpa_tdls_peer *peer) 19898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 19908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->tpk_success = 1; 199173b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 0; 19928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_timeout, sm, peer); 19938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_tdls_get_privacy(sm)) { 19948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime = peer->lifetime; 19958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 19968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Start the initiator process a bit earlier to avoid race 19978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * condition with the responder sending teardown request. 19988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 19998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime > 3 && peer->initiator) 20008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime -= 3; 20018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_register_timeout(lifetime, 0, wpa_tdls_tpk_timeout, 20028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm, peer); 20038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 20048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_NO_TPK_EXPIRATION) { 20058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - disable TPK " 20068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "expiration"); 20078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt eloop_cancel_timeout(wpa_tdls_tpk_timeout, sm, peer); 20088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 20108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 20128da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt if (peer->reconfig_key && wpa_tdls_set_key(sm, peer) < 0) { 20138da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Could not configure key to the " 20148da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt "driver"); 20158da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return -1; 20168da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 20178da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 0; 20188da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt 20198da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return wpa_sm_tdls_oper(sm, TDLS_ENABLE_LINK, peer->addr); 20208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 20218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_process_tpk_m2(struct wpa_sm *sm, const u8 *src_addr, 20248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 20258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 20268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 20278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 20288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_ie_data ie; 20298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int cipher; 20308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 20318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *timeoutie; 20328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 20338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 20348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 dtoken; 20358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 20368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 20378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 2038292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt int ret = 0; 20398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Received TDLS Setup Response / TPK M2 " 20418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Peer " MACSTR ")", MAC2STR(src_addr)); 20428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 20438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, src_addr, ETH_ALEN) == 0) 20448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 20458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 20478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching peer found for " 20488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M2: " MACSTR, MAC2STR(src_addr)); 20498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 20508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20510ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt if (!peer->initiator) { 20520ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt /* 20530ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * This may happen if both devices try to initiate TDLS at the 20540ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * same time and we accept the TPK M1 from the peer in 20550ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt * wpa_tdls_process_tpk_m1() and clear our previous state. 20560ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt */ 20570ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt wpa_printf(MSG_INFO, "TDLS: We were not the initiator, so " 20580ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt "ignore TPK M2 from " MACSTR, MAC2STR(src_addr)); 20590ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt return -1; 20600ccb66edb8d2a0a397320ace3ec2a03fb0d00d5fDmitry Shmidt } 20618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout_cancel(sm, peer, WLAN_TDLS_SETUP_REQUEST); 20628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2063adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt if (len < 3 + 2 + 1) { 2064d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 20658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2066adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt } 2067adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt 20688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 20698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 20708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WPA_GET_LE16(pos); 20718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 /* status code */; 20728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status != WLAN_STATUS_SUCCESS) { 20748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Status code in TPK M2: %u", 20758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 2076d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 20778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 20788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 20798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNSPECIFIED_FAILURE; 20818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* TODO: need to verify dialog token matches here or in kernel */ 20838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt dtoken = *pos++; /* dialog token */ 20848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Dialog Token in TPK M2 %d", dtoken); 20868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2087adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt if (len < 3 + 2 + 1 + 2) { 2088d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 20898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 2090adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt } 20911f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 20921f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* capability information */ 20931f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt peer->capability = WPA_GET_LE16(pos); 20941f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt pos += 2; 20958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 20968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (pos - buf); /* start of IE in buf */ 20978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies(pos, ielen, &kde) < 0) { 20988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse IEs in TPK M2"); 20998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 21008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 21038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_testing & TDLS_TESTING_DECLINE_RESP) { 21048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - decline response"); 21058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_REQUEST_DECLINED; 21068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 21078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 21098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 21118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No valid Link Identifier IE in " 21128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M2"); 21138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 21148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Link ID Received from TPK M2", 21168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.lnkid, kde.lnkid_len); 21178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 21188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 21208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TPK M2 from different BSS"); 21218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_NOT_IN_SAME_BSS; 21228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 21238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21251f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (copy_supp_rates(&kde, peer) < 0) 21261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt goto error; 21271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 2128f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ht_capab(&kde, peer) < 0) 2129f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 2130f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 213133e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt if (copy_peer_vht_capab(&kde, peer) < 0) 213233e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt goto error; 213333e38bfa7159cef089d6ee0d904778e184c72c47Dmitry Shmidt 2134f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (copy_peer_ext_capab(&kde, peer) < 0) 2135f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt goto error; 2136f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2137344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_channels(&kde, peer) < 0) 2138344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 2139344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 2140344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt if (copy_peer_supp_oper_classes(&kde, peer) < 0) 2141344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt goto error; 2142344abd362cfe2d03ed956666527352826b67bde5Dmitry Shmidt 2143f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer->qos_info = kde.qosinfo; 2144f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2145b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt /* Overwrite with the qos_info obtained in WMM IE */ 2146b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt if (copy_peer_wmm_capab(&kde, peer) < 0) 2147b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt goto error; 2148b36ed7cd946148d829f311de8fe53ea3ffaaffe3Dmitry Shmidt 214951b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt peer->aid = kde.aid; 215051b6ea882f234c14cd1fe1332a3840cf61fafccaDmitry Shmidt 21518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) { 21528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = 0; 21538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = WPA_CIPHER_NONE; 21548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn; 21558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie) || 21588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie == NULL) { 21598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE or RSN IE in TPK M2"); 21608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_PARAMETERS; 21618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 21628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Received from TPK M2", 21648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie, kde.rsn_ie_len); 21658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 216609f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt if (kde.rsn_ie_len > TDLS_MAX_IE_LEN) { 216709f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt wpa_printf(MSG_INFO, 216809f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt "TDLS: Too long Responder RSN IE in TPK M2"); 216909f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 217009f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt goto error; 217109f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt } 217209f57babfc1e4473db20ced4f58a4c9f082c8ed8Dmitry Shmidt 21738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* 21748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * FIX: bitwise comparison of RSN IE is not the correct way of 21758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * validation this. It can be different, but certain fields must 21768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * match. Since we list only a single pairwise cipher in TPK M1, the 21778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * memcmp is likely to work in most cases, though. 21788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 21798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie_len != peer->rsnie_i_len || 21808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(peer->rsnie_i, kde.rsn_ie, peer->rsnie_i_len) != 0) { 21818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: RSN IE in TPK M2 does " 21828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "not match with RSN IE used in TPK M1"); 21838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Sent in TPK M1", 21848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_i, peer->rsnie_i_len); 21858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Received from TPK M2", 21868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie, kde.rsn_ie_len); 21878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 21888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 21898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_parse_wpa_ie_rsn(kde.rsn_ie, kde.rsn_ie_len, &ie) < 0) { 21928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Failed to parse RSN IE in TPK M2"); 21938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_INVALID_RSNIE; 21948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 21958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 21968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 21978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = ie.pairwise_cipher; 21988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (cipher == WPA_CIPHER_CCMP) { 21998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Using CCMP for direct link"); 22008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt cipher = WPA_CIPHER_CCMP; 22018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } else { 22028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No acceptable cipher in TPK M2"); 22038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID; 22048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 22058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE Received from TPK M2", 22088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.ftie, sizeof(*ftie)); 22098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 22108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) == 0) { 22128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: FTIE SNonce in TPK M2 does " 22138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "not match with FTIE SNonce used in TPK M1"); 22148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Silently discard the frame */ 22158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 22168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Responder Nonce and RSN IE */ 22198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rnonce, ftie->Anonce, WPA_NONCE_LEN); 22208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(peer->rsnie_p, kde.rsn_ie, kde.rsn_ie_len); 22218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->rsnie_p_len = kde.rsn_ie_len; 22228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->cipher = cipher; 22238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Lifetime */ 22258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.key_lifetime == NULL) { 22268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Key Lifetime IE in TPK M2"); 22278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 22288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 22298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt timeoutie = (struct wpa_tdls_timeoutie *) kde.key_lifetime; 22318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = WPA_GET_LE32(timeoutie->value); 22328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds in TPK M2", 22338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 22348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime != peer->lifetime) { 22358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Unexpected TPK lifetime %u in " 22368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M2 (expected %u)", lifetime, peer->lifetime); 22378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WLAN_STATUS_UNACCEPTABLE_LIFETIME; 22388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto error; 22398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_generate_tpk(peer, sm->own_addr, sm->bssid); 22428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Process MIC check to see if TPK M2 is right */ 22448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_verify_tdls_mic(2, peer, (u8 *) lnkid, 22458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) timeoutie, ftie) < 0) { 22468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Discard the frame */ 22478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_del_key(sm, peer); 224838ffd8879e7990491033bf20568212e8c3472b48Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 22498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 22508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 22518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22528da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt if (wpa_tdls_set_key(sm, peer) < 0) { 22538da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt /* 22548da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * Some drivers may not be able to config the key prior to full 22558da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * STA entry having been configured. 22568da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt */ 22578da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Try to configure TPK again after " 22588da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt "STA entry is complete"); 22598da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 1; 22608da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 22618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn: 22638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->dtoken = dtoken; 22648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2265d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt /* add supported rates, capabilities, and qos_info to the TDLS peer */ 2266d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (wpa_tdls_addset_peer(sm, peer, 0) < 0) 2267d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt goto error; 2268d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 22698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Sending TDLS Setup Confirm / " 22708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK Handshake Message 3"); 2271d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (wpa_tdls_send_tpk_m3(sm, src_addr, dtoken, lnkid, peer) < 0) 2272d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt goto error; 22738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2274292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (!peer->tpk_success) { 2275292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt /* 2276292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * Enable Link only when tpk_success is 0, signifying that this 2277292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * processing of TPK M2 frame is not because of a retransmission 2278292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * during TDLS setup handshake. 2279292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt */ 2280292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt ret = wpa_tdls_enable_link(sm, peer); 2281292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (ret < 0) { 2282292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Could not enable link"); 2283292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_tdls_do_teardown( 2284292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt sm, peer, 2285292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 2286292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt } 22878da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 22888da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return ret; 22898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidterror: 22918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_send_error(sm, src_addr, WLAN_TDLS_SETUP_CONFIRM, dtoken, 22928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 2293d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 22948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 22958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 22968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 22988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_process_tpk_m3(struct wpa_sm *sm, const u8 *src_addr, 22998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 23008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 23018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 23028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse kde; 23038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_ftie *ftie; 23048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *timeoutie; 23058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_lnkid *lnkid; 23068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int ielen; 23078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u16 status; 23088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *pos; 23098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u32 lifetime; 2310292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt int ret = 0; 23118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Received TDLS Setup Confirm / TPK M3 " 23138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Peer " MACSTR ")", MAC2STR(src_addr)); 23148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 23158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, src_addr, ETH_ALEN) == 0) 23168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 23178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL) { 23198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No matching peer found for " 23208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M3: " MACSTR, MAC2STR(src_addr)); 23218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 23228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_tpk_retry_timeout_cancel(sm, peer, WLAN_TDLS_SETUP_RESPONSE); 23248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < 3 + 3) 2326adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 23278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf; 23288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 1 /* pkt_type */ + 1 /* Category */ + 1 /* Action */; 23298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status = WPA_GET_LE16(pos); 23318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (status != 0) { 23338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Status code in TPK M3: %u", 23348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt status); 2335adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 23368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos += 2 /* status code */ + 1 /* dialog token */; 23388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ielen = len - (pos - buf); /* start of IE in buf */ 23400c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt 23410c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt /* 23420c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * Don't reject the message if failing to parse IEs. The IEs we need are 23430c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * explicitly checked below. Some APs piggy-back broken IEs to the end 23440c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * of a TDLS Confirm packet, which will fail the link if we don't ignore 23450c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt * this error. 23460c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt */ 23478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies((const u8 *) pos, ielen, &kde) < 0) { 23480c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt wpa_printf(MSG_DEBUG, 23490c08fdcf5231617f2340cb18e45769a8ed3a1dc4Dmitry Shmidt "TDLS: Failed to parse KDEs in TPK M3 - ignore as an interop workaround"); 23508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.lnkid == NULL || kde.lnkid_len < 3 * ETH_ALEN) { 23538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Link Identifier IE in TPK M3"); 2354adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 23558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Link ID Received from TPK M3", 23578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) kde.lnkid, kde.lnkid_len); 23588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lnkid = (struct wpa_tdls_lnkid *) kde.lnkid; 23598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(sm->bssid, lnkid->bssid, ETH_ALEN) != 0) { 23618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: TPK M3 from diff BSS"); 2362adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 23638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!wpa_tdls_get_privacy(sm)) 23668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt goto skip_rsn; 23678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.ftie == NULL || kde.ftie_len < sizeof(*ftie)) { 23698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No FTIE in TPK M3"); 2370adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 23718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: FTIE Received from TPK M3", 23738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.ftie, sizeof(*ftie)); 23748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ftie = (struct wpa_tdls_ftie *) kde.ftie; 23758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie == NULL) { 23778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No RSN IE in TPK M3"); 2378adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 23798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: RSN IE Received from TPK M3", 23818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt kde.rsn_ie, kde.rsn_ie_len); 23828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.rsn_ie_len != peer->rsnie_p_len || 23838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcmp(kde.rsn_ie, peer->rsnie_p, peer->rsnie_p_len) != 0) { 23848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: RSN IE in TPK M3 does not match " 23858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "with the one sent in TPK M2"); 2386adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 23878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!os_memcmp(peer->rnonce, ftie->Anonce, WPA_NONCE_LEN) == 0) { 23908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: FTIE ANonce in TPK M3 does " 23918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "not match with FTIE ANonce used in TPK M2"); 2392adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 23938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 23948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 23958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) == 0) { 23968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: FTIE SNonce in TPK M3 does not " 23978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "match with FTIE SNonce used in TPK M1"); 2398adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 23998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (kde.key_lifetime == NULL) { 24028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: No Key Lifetime IE in TPK M3"); 2403adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt timeoutie = (struct wpa_tdls_timeoutie *) kde.key_lifetime; 24068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Timeout IE Received from TPK M3", 24078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) timeoutie, sizeof(*timeoutie)); 24088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime = WPA_GET_LE32(timeoutie->value); 24098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TPK lifetime %u seconds in TPK M3", 24108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime); 24118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (lifetime != peer->lifetime) { 24128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Unexpected TPK lifetime %u in " 24138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "TPK M3 (expected %u)", lifetime, peer->lifetime); 2414adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_verify_tdls_mic(3, peer, (u8 *) lnkid, 24188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (u8 *) timeoutie, ftie) < 0) { 24198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_del_key(sm, peer); 2420adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt goto error; 24218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24238da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt if (wpa_tdls_set_key(sm, peer) < 0) { 24248da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt /* 24258da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * Some drivers may not be able to config the key prior to full 24268da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt * STA entry having been configured. 24278da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt */ 24288da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Try to configure TPK again after " 24298da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt "STA entry is complete"); 24308da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt peer->reconfig_key = 1; 24318da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 24328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtskip_rsn: 2434d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt /* add supported rates, capabilities, and qos_info to the TDLS peer */ 2435d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (wpa_tdls_addset_peer(sm, peer, 0) < 0) 2436d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt goto error; 2437d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt 2438292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (!peer->tpk_success) { 2439292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt /* 2440292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * Enable Link only when tpk_success is 0, signifying that this 2441292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * processing of TPK M3 frame is not because of a retransmission 2442292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt * during TDLS setup handshake. 2443292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt */ 2444292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt ret = wpa_tdls_enable_link(sm, peer); 2445292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt if (ret < 0) { 2446292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Could not enable link"); 2447d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt goto error; 2448292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt } 24498da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt } 24508da800a193fb6f8832218715f82a7b4e2d2ad338Dmitry Shmidt return ret; 2451adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutterror: 2452d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_do_teardown(sm, peer, WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 2453adce9cf73c2237aff40a49fc3d0b315711f291d8Sunil Dutt return -1; 24548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 24558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic u8 * wpa_add_tdls_timeoutie(u8 *pos, u8 *ie, size_t ie_len, u32 tsecs) 24588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 24598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_timeoutie *lifetime = (struct wpa_tdls_timeoutie *) ie; 24608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memset(lifetime, 0, ie_len); 24628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime->ie_type = WLAN_EID_TIMEOUT_INTERVAL; 24638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime->ie_len = sizeof(struct wpa_tdls_timeoutie) - 2; 24648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt lifetime->interval_type = WLAN_TIMEOUT_KEY_LIFETIME; 24658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt WPA_PUT_LE32(lifetime->value, tsecs); 24668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt os_memcpy(pos, ie, ie_len); 24678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return pos + ie_len; 24688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 24698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 24728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_start - Initiate TDLS handshake (send TPK Handshake Message 1) 24738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @sm: Pointer to WPA state machine data from wpa_sm_init() 24748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @peer: MAC address of the peer STA 24758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, or -1 on failure 24768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 24778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Send TPK Handshake Message 1 info to driver to start TDLS 24788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * handshake with the peer. 24798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 24808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_tdls_start(struct wpa_sm *sm, const u8 *addr) 24818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 24828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 24838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int tdls_prohibited = sm->tdls_prohibited; 24848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24851f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 24868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 24878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#ifdef CONFIG_TDLS_TESTING 24898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if ((tdls_testing & TDLS_TESTING_IGNORE_AP_PROHIBIT) && 24908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited) { 24918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Testing - ignore AP prohibition " 24928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "on TDLS"); 24938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tdls_prohibited = 0; 24948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 24958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#endif /* CONFIG_TDLS_TESTING */ 24968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 24978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tdls_prohibited) { 24988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS is prohibited in this BSS - " 24998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "reject request to start setup"); 25008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 25018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25034b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt peer = wpa_tdls_add_peer(sm, addr, NULL); 25044b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt if (peer == NULL) 25054b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return -1; 25068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 250773b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt if (peer->tpk_in_progress) { 250873b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt wpa_printf(MSG_DEBUG, "TDLS: Setup is already in progress with the peer"); 250973b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt return 0; 251073b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt } 251173b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt 25128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer->initiator = 1; 25138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25141f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* add the peer to the driver as a "setup in progress" peer */ 2515d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt if (wpa_sm_tdls_peer_addset(sm, peer->addr, 1, 0, 0, NULL, 0, NULL, 2516d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt NULL, 0, NULL, 0, NULL, 0, NULL, 0)) { 2517d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt wpa_tdls_disable_peer_link(sm, peer); 2518d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt return -1; 2519d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt } 25201f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 252173b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt peer->tpk_in_progress = 1; 252273b28cc4bd1d5efa3534ad9e28365fea9a62ffd3Sunil Dutt 25231f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_tdls_send_tpk_m1(sm, peer) < 0) { 2524d0ef38b52c069e34102b38dafbbc1fe055364ae8Sunil Dutt wpa_tdls_disable_peer_link(sm, peer); 25251f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return -1; 25261f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 25271f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 25281f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return 0; 25298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 25308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25324b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidtvoid wpa_tdls_remove(struct wpa_sm *sm, const u8 *addr) 25338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 25348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer; 25358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25361f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) 25374b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return; 25388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt for (peer = sm->tdls; peer; peer = peer->next) { 25408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(peer->addr, addr, ETH_ALEN) == 0) 25418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 25428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (peer == NULL || !peer->tpk_success) 25454b9d52f502481b258fec743c03a5e957e5605afcDmitry Shmidt return; 25468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25471f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_external_setup) { 25481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* 25491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * Disable previous link to allow renegotiation to be completed 25501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * on AP path. 25511f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt */ 2552b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt wpa_tdls_do_teardown(sm, peer, 2553b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED); 25541f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 25558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 25568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 25598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_supplicant_rx_tdls - Receive TDLS data frame 25608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 25618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called to receive TDLS (ethertype = 0x890d) data frames. 25628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 25638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_supplicant_rx_tdls(void *ctx, const u8 *src_addr, 25648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *buf, size_t len) 25658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 25668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_sm *sm = ctx; 25678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_frame *tf; 25688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_DEBUG, "TDLS: Received Data frame encapsulation", 25708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt buf, len); 25718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25721f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (sm->tdls_disabled || !sm->tdls_supported) { 25731f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discard message - TDLS disabled " 25741f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "or unsupported by driver"); 25758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 25768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (os_memcmp(src_addr, sm->own_addr, ETH_ALEN) == 0) { 25798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Discard copy of own message"); 25808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 25818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < sizeof(*tf)) { 25848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Drop too short frame"); 25858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 25868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Check to make sure its a valid encapsulated TDLS frame */ 25898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf = (struct wpa_tdls_frame *) buf; 25908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (tf->payloadtype != 2 /* TDLS_RFTYPE */ || 25918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf->category != WLAN_ACTION_TDLS) { 25928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_INFO, "TDLS: Invalid frame - payloadtype=%u " 25938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "category=%u action=%u", 25948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf->payloadtype, tf->category, tf->action); 25958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 25968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 25978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 25988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (tf->action) { 25998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_SETUP_REQUEST: 26008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_process_tpk_m1(sm, src_addr, buf, len); 26018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 26028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_SETUP_RESPONSE: 26038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_process_tpk_m2(sm, src_addr, buf, len); 26048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 26058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_SETUP_CONFIRM: 26068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_process_tpk_m3(sm, src_addr, buf, len); 26078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 26088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case WLAN_TDLS_TEARDOWN: 26098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_recv_teardown(sm, src_addr, buf, len); 26108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 26111f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt case WLAN_TDLS_DISCOVERY_REQUEST: 26121f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_tdls_process_discovery_request(sm, src_addr, buf, len); 26131f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt break; 26148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt default: 26158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* Kernel code will process remaining frames */ 26168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Ignore TDLS frame action code %u", 26178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tf->action); 26188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 26198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 26208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 26218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 26248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_init - Initialize driver interface parameters for TDLS 26258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * @wpa_s: Pointer to wpa_supplicant data 26268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Returns: 0 on success, -1 on failure 26278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 26288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called to initialize driver interface parameters for TDLS. 26298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_drv_init() must have been called before this function to initialize the 26308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * driver interface. 26318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 26328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtint wpa_tdls_init(struct wpa_sm *sm) 26338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 26348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 26358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 26368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 263704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt sm->l2_tdls = l2_packet_init(sm->bridge_ifname ? sm->bridge_ifname : 263804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt sm->ifname, 263904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt sm->own_addr, 26408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ETH_P_80211_ENCAP, wpa_supplicant_rx_tdls, 26418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm, 0); 26428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->l2_tdls == NULL) { 26438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_ERROR, "TDLS: Failed to open l2_packet " 26448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "connection"); 26458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return -1; 26468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 26478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26481f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt /* 26491f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * Drivers that support TDLS but don't implement the get_capa callback 26501f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt * are assumed to perform everything internally 26511f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt */ 26521f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt if (wpa_sm_tdls_get_capa(sm, &sm->tdls_supported, 26531f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt &sm->tdls_external_setup) < 0) { 26541f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls_supported = 1; 26551f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls_external_setup = 0; 26561f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt } 26571f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 26581f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS operation%s supported by " 26591f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt "driver", sm->tdls_supported ? "" : " not"); 26601f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Driver uses %s link setup", 26611f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt sm->tdls_external_setup ? "external" : "internal"); 26621f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 26638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 26648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 26658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 2667f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidtvoid wpa_tdls_teardown_peers(struct wpa_sm *sm) 2668f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt{ 2669d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt struct wpa_tdls_peer *peer, *tmp; 2670f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2671f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt peer = sm->tdls; 2672f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2673f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Tear down peers"); 2674f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2675f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt while (peer) { 2676d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt tmp = peer->next; 2677f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Tear down peer " MACSTR, 2678f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt MAC2STR(peer->addr)); 2679f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt if (sm->tdls_external_setup) 2680b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt wpa_tdls_do_teardown(sm, peer, 2681b58836ed5520bf4b769f76ef7dcb802af8c900b8Dmitry Shmidt WLAN_REASON_DEAUTH_LEAVING); 2682f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt else 2683f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt wpa_sm_tdls_oper(sm, TDLS_TEARDOWN, peer->addr); 2684f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2685d30ac604c9f6da71a0dd7f46d25be05a2a62cfbbDmitry Shmidt peer = tmp; 2686f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt } 2687f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt} 2688f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 2689f86232838cf712377867cb42417c1613ab5dc425Dmitry Shmidt 26908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_tdls_remove_peers(struct wpa_sm *sm) 26918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 26928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_tdls_peer *peer, *tmp; 26938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer = sm->tdls; 26958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 26968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt while (peer) { 26978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt int res; 26988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt tmp = peer->next; 26998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt res = wpa_sm_tdls_oper(sm, TDLS_DISABLE_LINK, peer->addr); 27008d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Remove peer " MACSTR " (res=%d)", 27018d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt MAC2STR(peer->addr), res); 27028d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_peer_free(sm, peer); 27038d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt peer = tmp; 27048d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 27058d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27068d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27078d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27088d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/** 27098d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * wpa_tdls_deinit - Deinitialize driver interface parameters for TDLS 27108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 27118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * This function is called to recover driver interface parameters for TDLS 27128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * and frees resources allocated for it. 27138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 27148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_deinit(struct wpa_sm *sm) 27158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 27168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm == NULL) 27178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 27188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (sm->l2_tdls) 27208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt l2_packet_deinit(sm->l2_tdls); 27218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->l2_tdls = NULL; 27228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_remove_peers(sm); 27248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_assoc(struct wpa_sm *sm) 27288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 27298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Remove peers on association"); 27308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_remove_peers(sm); 27318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_disassoc(struct wpa_sm *sm) 27358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 27368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: Remove peers on disassociation"); 27378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_tdls_remove_peers(sm); 27388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic int wpa_tdls_prohibited(const u8 *ies, size_t len) 27428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 27438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_eapol_ie_parse elems; 27448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ies == NULL) 27468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 27478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (wpa_supplicant_parse_ies(ies, len, &elems) < 0) 27498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 27508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (elems.ext_capab == NULL || elems.ext_capab_len < 2 + 5) 27528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return 0; 27538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt /* bit 38 - TDLS Prohibited */ 27558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return !!(elems.ext_capab[2 + 4] & 0x40); 27568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_ap_ies(struct wpa_sm *sm, const u8 *ies, size_t len) 27608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 27618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_prohibited = wpa_tdls_prohibited(ies, len); 27628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS is %s in the target BSS", 27638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_prohibited ? "prohibited" : "allowed"); 27648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_assoc_resp_ies(struct wpa_sm *sm, const u8 *ies, size_t len) 27688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 27698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (!sm->tdls_prohibited && wpa_tdls_prohibited(ies, len)) { 27708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: TDLS prohibited based on " 27718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt "(Re)Association Response IEs"); 27728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_prohibited = 1; 27738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 27748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 27778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_tdls_enable(struct wpa_sm *sm, int enabled) 27788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 27798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "TDLS: %s", enabled ? "enabled" : "disabled"); 27808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt sm->tdls_disabled = !enabled; 27818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 27821f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 27831f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt 27841f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidtint wpa_tdls_is_external_setup(struct wpa_sm *sm) 27851f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt{ 27861f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt return sm->tdls_external_setup; 27871f69aa52ea2e0a73ac502565df8c666ee49cab6aDmitry Shmidt} 2788